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Nikitin Aleksandr 2023-08-31 16:11:42 +03:00
parent 5c544aea05
commit fdb7f76b8e
931 changed files with 617951 additions and 0 deletions
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3
.env_example Normal file
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DIRECTORY_SOURCE=./
FILENAME_GRAPHML=./connections.graphml
SERVICE_NAME=Main

13
.gitignore vendored Normal file
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/.env
/cover.out
/internal/v0/app/.env
.env
/.idea/
/bin/.env
/log.txt
.vscode
/bin/image_connections
/settings/connections_add.txt
/bin/settings/connections_add.txt

52
Makefile Normal file
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SERVICENAME=image_database
SERVICEURL=github.com/ManyakRus/$(SERVICENAME)
FILEMAIN=./internal/main.go
FILEAPP=./bin/$(SERVICENAME)
NEW_REPO=github.com/ManyakRus/image_database
run:
clear
go build -race -o $(FILEAPP) $(FILEMAIN)
# cd ./bin && \
./bin/app_race
mod:
clear
go get -u ./...
go mod tidy -compat=1.18
go mod vendor
go fmt ./...
build:
clear
go build -race -o $(FILEAPP) $(FILEMAIN)
cd ./cmd && \
./VersionToFile.py
cp $(FILEAPP) $(GOPATH)/bin
lint:
clear
go fmt ./...
golangci-lint run ./internal/v0/...
golangci-lint run ./pkg/v0/...
gocyclo -over 10 ./internal/v0
gocyclo -over 10 ./pkg/v0
gocritic check ./internal/v0/...
gocritic check ./pkg/v0/...
staticcheck ./internal/v0/...
staticcheck ./pkg/v0/...
run.test:
clear
go fmt ./...
go test -coverprofile cover.out ./internal/v0/app/...
go tool cover -func=cover.out
newrepo:
sed -i 's+$(SERVICEURL)+$(NEW_REPO)+g' go.mod
find -name *.go -not -path "*/vendor/*"|xargs sed -i 's+$(SERVICEURL)+$(NEW_REPO)+g'
graph:
clear
image_packages ./ docs/packages.graphml
conn:
clear
image_connections ./internal docs/connections.graphml $(SERVICENAME)

2
bin/.gitignore vendored Normal file
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/app_race
/log.txt

1
bin/date.txt Normal file
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2023-08-30 07:32:03.868

32
bin/settings/connections.txt Normal file
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{
"github.com/segmentio/kafka-go": "Kafka",
"gorm.io/driver/postgres": "Postgres",
"github.com/camunda/zeebe/clients/go/v8": "Camunda",
"gitlab.aescorp.ru/dsp_dev/claim/nikitin/nats_connect": "Nats",
"github.com/nats-io/nats.go": "Nats",
"github.com/minio/minio-go": "Minio",
"github.com/sashabaranov/go-openai": "Chat GPT",
"github.com/xhit/go-simple-mail": "EMail server",
"github.com/emersion/go-imap": "EMail IMAP server",
"github.com/denisenkom/go-mssqldb": "MSSQL",
"github.com/lib/pq": "Postgres",
"github.com/jackc/pgx": "Postgres",
"github.com/gotd": "Telegram",
"go.mau.fi/whatsmeow": "Whatsapp",
"github.com/mattn/go-sqlite3": "SQL Lite3",
"net/http": "WEB",
"github.com/valyala/fasthttp": "WEB",
"github.com/gin-gonic/gin": "WEB",
"github.com/rabbitmq/amqp091-go": "RabbitMQ",
"github.com/ManyakRus/starter/kafka_connect": "Kafka",
"github.com/ManyakRus/starter/postgres_gorm": "Postgres",
"github.com/ManyakRus/starter/camunda_connect": "Camunda",
"github.com/ManyakRus/starter/nats_connect": "Nats",
"github.com/ManyakRus/starter/minio_connect": "Minio",
"github.com/ManyakRus/starter/liveness": "WEB server\nLiveness",
"github.com/ManyakRus/starter/whatsapp_connect": "Whatsapp",
"github.com/go-redis/redis": "Redis",
"github.com/gorilla/websocket": "Web socket",
"github.com/Nerzal/gocloak": "Keycloak",
"github.com/prometheus/client_golang/prometheus/promhttp": "Prometeus"
}

6
bin/start_with_log.sh Executable file
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logfile=log.txt
echo press CTRL+C to stop app
echo log file: $logfile
script -q /dev/null -c ./go-xgml > $logfile

1
bin/subversion.txt Normal file
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00129

1
bin/version.txt Normal file
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v0

52
cmd/VersionToFile.py Executable file
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#!/usr/bin/python3
# Python script to create an empty file
# with current date as name.
# importing datetime module
from datetime import datetime
import os
# datetime.datetime.now() to get
# current date as filename.
# TimeNow = datetime.datetime.now()
FILESUBVERSION="../bin/subversion.txt"
FILEDATE="../bin/date.txt"
# create empty file
def create_file():
fmt = "%Y-%m-%d %H:%M:%S.%f"
str1 = datetime.utcnow().strftime(fmt)[:-3]
# Function creates an empty file
# %d - date, %B - month, %Y - Year
with open(FILEDATE, "w") as file:
file.write(str1)
file.close()
def set_version():
filename=FILESUBVERSION
build=0
mode = 'r' if os.path.exists(filename) else 'w+'
with open(filename, encoding="utf8", mode=mode) as file_in:
_str_build = file_in.read()
file_in.close()
try:
build = int(_str_build)
except ValueError as err:
print("Build.__setVers(): при конвертировании строки в число, err=", err)
finally:
pass
build += 1
str_build = str(build)
while len(str_build) < 5:
str_build = "0" + str_build
print("Build.set_version(): new build=", str_build)
with open(filename, "w", encoding="utf8") as file_in:
file_in.write(str_build)
file_in.close()
# Driver Code
create_file()
set_version()

52
cmd/test_copy/VersionToFile.py Executable file
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#!/usr/bin/python3
# Python script to create an empty file
# with current date as name.
# importing datetime module
from datetime import datetime
import os
# datetime.datetime.now() to get
# current date as filename.
# TimeNow = datetime.datetime.now()
FILESUBVERSION="subversion.txt"
FILEDATE="date.txt"
# create empty file
def create_file():
fmt = "%Y-%m-%d %H:%M:%S.%f"
str1 = datetime.utcnow().strftime(fmt)[:-3]
# Function creates an empty file
# %d - date, %B - month, %Y - Year
with open(FILEDATE, "w") as file:
file.write(str1)
file.close()
def set_vers():
filename=FILESUBVERSION
build=0
mode = 'r' if os.path.exists(filename) else 'w+'
with open(filename, encoding="utf8", mode=mode) as file_in:
_str_build = file_in.read()
file_in.close()
try:
build = int(_str_build)
except ValueError as err:
print("Build.__setVers(): при конвертировании строки в число, err=", err)
finally:
pass
build += 1
str_build = str(build)
while len(str_build) < 5:
str_build = "0" + str_build
print("Build.__set_vers(): new build=", str_build)
with open(filename, "w", encoding="utf8") as file_in:
file_in.write(str_build)
file_in.close()
# Driver Code
create_file()
set_vers()

1
cmd/test_copy/date.txt Normal file
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2022-03-14 10:13:39.265

1
cmd/test_copy/subversion.txt Normal file
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00001

1
cmd/test_copy/version.txt Normal file
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v0

BIN
docs/connections.jpg Normal file
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Width:  |  Height:  |  Size: 14 KiB

571
docs/packages.graphml Normal file
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<y:EdgeLabel alignment="center" bottomInset="0" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="18.625" horizontalTextPosition="center" iconTextGap="4" leftInset="0" modelName="centered" modelPosition="center" preferredPlacement="anywhere" ratio="0.5" rightInset="0" textColor="#000000" topInset="0" verticalTextPosition="bottom" visible="true" width="30.515625" x="-5.291015625" xml:space="preserve" y="-47.979154072110646">
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/></y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
<edge id="n0::n2::e2" source="n0::n2::n2::n0" target="n0::n2::n3::n0">
<data key="d8" xml:space="preserve"><![CDATA[logic -> packages_folder]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="0.0" tx="0.0" ty="0.0"/>
<y:LineStyle color="#000000" type="line" width="1.0"/>
<y:Arrows source="none" target="standard"/>
<y:EdgeLabel alignment="center" bottomInset="0" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="18.625" horizontalTextPosition="center" iconTextGap="4" leftInset="0" modelName="centered" modelPosition="center" preferredPlacement="anywhere" ratio="0.5" rightInset="0" textColor="#000000" topInset="0" verticalTextPosition="bottom" visible="true" width="30.515625" x="14.7421875" xml:space="preserve" y="-9.312507750496025">
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/></y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
<edge id="n0::n2::e3" source="n0::n2::n2::n0" target="n0::n2::n4::n0">
<data key="d8" xml:space="preserve"><![CDATA[logic -> parse_go]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="5.199999999999989" tx="0.0" ty="0.0">
<y:Point x="227.0" y="-340.08174603174604"/>
<y:Point x="227.0" y="-259.281746031746"/>
</y:Path>
<y:LineStyle color="#000000" type="line" width="1.0"/>
<y:Arrows source="none" target="standard"/>
<y:EdgeLabel alignment="center" bottomInset="0" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="18.625" horizontalTextPosition="center" iconTextGap="4" leftInset="0" modelName="centered" modelPosition="center" preferredPlacement="anywhere" ratio="0.5" rightInset="0" textColor="#000000" topInset="0" verticalTextPosition="bottom" visible="true" width="30.515625" x="19.72216796875" xml:space="preserve" y="31.087510560050873">
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/></y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
<edge id="n0::n2::e4" source="n0::n2::n2::n0" target="n0::n2::n1::n0">
<data key="d8" xml:space="preserve"><![CDATA[logic -> config]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="10.399999999999977" tx="0.0" ty="-6.5">
<y:Point x="217.0" y="-334.88174603174605"/>
<y:Point x="217.0" y="-179.78174603174602"/>
</y:Path>
<y:LineStyle color="#000000" type="line" width="1.0"/>
<y:Arrows source="none" target="standard"/>
<y:EdgeLabel alignment="center" bottomInset="0" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="18.625" horizontalTextPosition="center" iconTextGap="4" leftInset="0" modelName="centered" modelPosition="center" preferredPlacement="anywhere" ratio="0.5" rightInset="0" textColor="#000000" topInset="0" verticalTextPosition="bottom" visible="true" width="30.515625" x="9.73193359375" xml:space="preserve" y="68.23749835301959">
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/></y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
<edge id="n0::e0" source="n0::n2::n2::n0" target="n0::n3::n0::n0">
<data key="d8" xml:space="preserve"><![CDATA[logic -> graphml]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="-5.199999999999989" tx="0.0" ty="0.0">
<y:Point x="227.0" y="-350.481746031746"/>
<y:Point x="227.0" y="-461.281746031746"/>
</y:Path>
<y:LineStyle color="#000000" type="line" width="1.0"/>
<y:Arrows source="none" target="standard"/>
<y:EdgeLabel alignment="center" bottomInset="0" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="18.625" horizontalTextPosition="center" iconTextGap="4" leftInset="0" modelName="centered" modelPosition="center" preferredPlacement="anywhere" ratio="0.5" rightInset="0" textColor="#000000" topInset="0" verticalTextPosition="bottom" visible="true" width="30.515625" x="19.72216796875" xml:space="preserve" y="-64.7124955434648">
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/></y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
<edge id="n0::n3::e0" source="n0::n3::n1::n0" target="n0::n3::n2::n0">
<data key="d8" xml:space="preserve"><![CDATA[xgml -> xml]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="0.0" tx="0.0" ty="0.0"/>
<y:LineStyle color="#000000" type="line" width="1.0"/>
<y:Arrows source="none" target="standard"/>
<y:EdgeLabel alignment="center" bottomInset="0" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="18.625" horizontalTextPosition="center" iconTextGap="4" leftInset="0" modelName="centered" modelPosition="center" preferredPlacement="anywhere" ratio="0.5" rightInset="0" textColor="#000000" topInset="0" verticalTextPosition="bottom" visible="true" width="30.515625" x="10.2421875" xml:space="preserve" y="-9.312507750496025">
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/></y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
</graph>
<data key="d6">
<y:Resources/>
</data>
</graphml>

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28
go.mod Normal file
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module github.com/ManyakRus/image_database
go 1.20
require (
github.com/ManyakRus/starter v0.0.0-20230720125411-d86504a07013
github.com/beevik/etree v1.2.0
golang.org/x/tools v0.12.0
)
require (
filippo.io/edwards25519 v1.0.0 // indirect
github.com/ManyakRus/logrus v0.0.0-20230426064230-515895169d22 // indirect
github.com/gorilla/websocket v1.5.0 // indirect
github.com/jmoiron/sqlx v1.3.5 // indirect
github.com/joho/godotenv v1.5.1 // indirect
github.com/lib/pq v1.10.9 // indirect
github.com/mattn/go-sqlite3 v1.14.17 // indirect
github.com/mdp/qrterminal/v3 v3.1.1 // indirect
go.mau.fi/libsignal v0.1.0 // indirect
go.mau.fi/util v0.0.0-20230805171708-199bf3eec776 // indirect
go.mau.fi/whatsmeow v0.0.0-20230824151650-6da2abde6b7c // indirect
golang.org/x/crypto v0.12.0 // indirect
golang.org/x/mod v0.12.0 // indirect
golang.org/x/sys v0.11.0 // indirect
google.golang.org/protobuf v1.31.0 // indirect
rsc.io/qr v0.2.0 // indirect
)

61
go.sum Normal file
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@ -0,0 +1,61 @@
filippo.io/edwards25519 v1.0.0 h1:0wAIcmJUqRdI8IJ/3eGi5/HwXZWPujYXXlkrQogz0Ek=
filippo.io/edwards25519 v1.0.0/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
github.com/ManyakRus/logrus v0.0.0-20230426064230-515895169d22 h1:DrHNlqXfwvCpCqn4MfRn4NBtezqWL5GLor3jC7QFPj0=
github.com/ManyakRus/logrus v0.0.0-20230426064230-515895169d22/go.mod h1:KbfWJjL1T+JHs/0tdcuqW6CKUakBEQ7oG9u5xpEfbTE=
github.com/ManyakRus/starter v0.0.0-20230720125411-d86504a07013 h1:auTnvIiUr4hlaTGzrXQMLPT90oofEkCj5l3X5Zhu8Ms=
github.com/ManyakRus/starter v0.0.0-20230720125411-d86504a07013/go.mod h1:wRsJrHV9PcbL8NSxOR14dnWUQ9MSraiZHw1uMQb/ojQ=
github.com/beevik/etree v1.2.0 h1:l7WETslUG/T+xOPs47dtd6jov2Ii/8/OjCldk5fYfQw=
github.com/beevik/etree v1.2.0/go.mod h1:aiPf89g/1k3AShMVAzriilpcE4R/Vuor90y83zVZWFc=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g=
github.com/jmoiron/sqlx v1.3.5/go.mod h1:nRVWtLre0KfCLJvgxzCsLVMogSvQ1zNJtpYr2Ccp0mQ=
github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/mattn/go-sqlite3 v1.14.17 h1:mCRHCLDUBXgpKAqIKsaAaAsrAlbkeomtRFKXh2L6YIM=
github.com/mattn/go-sqlite3 v1.14.17/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
github.com/mdp/qrterminal/v3 v3.1.1 h1:cIPwg3QU0OIm9+ce/lRfWXhPwEjOSKwk3HBwL3HBTyc=
github.com/mdp/qrterminal/v3 v3.1.1/go.mod h1:5lJlXe7Jdr8wlPDdcsJttv1/knsRgzXASyr4dcGZqNU=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
go.mau.fi/libsignal v0.1.0 h1:vAKI/nJ5tMhdzke4cTK1fb0idJzz1JuEIpmjprueC+c=
go.mau.fi/libsignal v0.1.0/go.mod h1:R8ovrTezxtUNzCQE5PH30StOQWWeBskBsWE55vMfY9I=
go.mau.fi/util v0.0.0-20230805171708-199bf3eec776 h1:VrxDCO/gLFHLQywGUsJzertrvt2mUEMrZPf4hEL/s18=
go.mau.fi/util v0.0.0-20230805171708-199bf3eec776/go.mod h1:AxuJUMCxpzgJ5eV9JbPWKRH8aAJJidxetNdUj7qcb84=
go.mau.fi/whatsmeow v0.0.0-20230824151650-6da2abde6b7c h1:GH1QtL+bbkwyzgJBLyBQcr499oHR1y8svzB92KtG6OY=
go.mau.fi/whatsmeow v0.0.0-20230824151650-6da2abde6b7c/go.mod h1:Iv3G4uv6+HWtqL7XSLRa2dSy077Bnji14IvqUbG+bRo=
golang.org/x/crypto v0.12.0 h1:tFM/ta59kqch6LlvYnPa0yx5a83cL2nHflFhYKvv9Yk=
golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98yw=
golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/tools v0.12.0 h1:YW6HUoUmYBpwSgyaGaZq1fHjrBjX1rlpZ54T6mu2kss=
golang.org/x/tools v0.12.0/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
rsc.io/qr v0.2.0 h1:6vBLea5/NRMVTz8V66gipeLycZMl/+UlFmk8DvqQ6WY=
rsc.io/qr v0.2.0/go.mod h1:IF+uZjkb9fqyeF/4tlBoynqmQxUoPfWEKh921coOuXs=

69
internal/config/config.go Normal file
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package config
import (
"os"
)
const FILENAME_GRAPHML = "connections.graphml"
const SERVICE_NAME = "Main"
// Settings хранит все нужные переменные окружения
var Settings SettingsINI
// SettingsINI - структура для хранения всех нужных переменных окружения
type SettingsINI struct {
DIRECTORY_SOURCE string
FILENAME_GRAPHML string
SERVICE_NAME string
}
// FillSettings загружает переменные окружения в структуру из переменных окружения
func FillSettings() {
Settings = SettingsINI{}
Settings.DIRECTORY_SOURCE = os.Getenv("DIRECTORY_SOURCE")
Settings.FILENAME_GRAPHML = os.Getenv("FILENAME_GRAPHML")
Settings.SERVICE_NAME = os.Getenv("SERVICE_NAME")
if Settings.DIRECTORY_SOURCE == "" {
Settings.DIRECTORY_SOURCE = CurrentDirectory()
//log.Panicln("Need fill DIRECTORY_SOURCE ! in os.ENV ")
}
if Settings.FILENAME_GRAPHML == "" {
Settings.FILENAME_GRAPHML = FILENAME_GRAPHML
}
if Settings.SERVICE_NAME == "" {
Settings.SERVICE_NAME = SERVICE_NAME
}
//
}
// CurrentDirectory - возвращает текущую директорию ОС
func CurrentDirectory() string {
Otvet, err := os.Getwd()
if err != nil {
//log.Println(err)
}
return Otvet
}
// FillFlags - заполняет параметры из командной строки
func FillFlags() {
Args := os.Args[1:]
if len(Args) > 3 {
return
}
if len(Args) > 0 {
Settings.DIRECTORY_SOURCE = Args[0]
}
if len(Args) > 1 {
Settings.FILENAME_GRAPHML = Args[1]
}
if len(Args) > 2 {
Settings.SERVICE_NAME = Args[2]
}
}

1
internal/config/config_test.go Normal file
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package config

6
internal/constants/constants.go Normal file
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package constants
const TEXT_HELP = `
Run the image_connections file with parameters:
image_connections <your repository directory> <filename.graphml>
`

381
internal/logic/logic.go Normal file
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package logic
import (
"bytes"
"github.com/ManyakRus/image_database/internal/config"
"github.com/ManyakRus/image_database/internal/packages_folder"
"github.com/ManyakRus/image_database/internal/parse_go"
"github.com/ManyakRus/image_database/pkg/graphml"
"github.com/ManyakRus/starter/log"
"github.com/ManyakRus/starter/micro"
"github.com/beevik/etree"
"golang.org/x/tools/go/packages"
"io"
"os"
"path"
"regexp"
"strings"
)
// MapNameURL - связь URL и имени внешнего сервиса
var MapServiceURL = make(map[string]string)
// MapPackagesElements - связь Пакета golang / Элемент файла .graphml
var MapPackagesElements = make(map[*packages.Package]*etree.Element, 0)
// MapServiceNameElements - связь ИД Пакета golang / Элемент файла .graphml
var MapServiceNameElements = make(map[string]*etree.Element, 0)
func StartFillAll(FileName string) bool {
Otvet := false
//RepositoryName := FindRepositoryName()
RepositoryName := config.Settings.SERVICE_NAME
DocXML, ElementGraph := graphml.CreateDocument()
//рисуем элемент
ElementShapeMain := graphml.CreateElement_Shape(ElementGraph, RepositoryName)
//
MassPackages := packages_folder.FindMassPackageFromFolder(config.Settings.DIRECTORY_SOURCE)
FillPackage(MassPackages, ElementGraph)
//заполним связи
log.Info("Start fill links")
FillLinks(ElementGraph, ElementShapeMain)
if len(MapServiceNameElements) > 0 {
Otvet = true
}
if Otvet == false {
println("warning: Empty file not saved !")
return Otvet
}
log.Info("Start save file")
DocXML.Indent(2)
err := DocXML.WriteToFile(FileName)
if err != nil {
log.Error("WriteToFile() FileName: ", FileName, " error: ", err)
}
return Otvet
}
// FillLinks - заполняет связи (стрелки) между пакетами
func FillLinks(ElementGraph, ElementShapeMain *etree.Element) {
for ServiceName, ElementTo := range MapServiceNameElements {
descr := config.Settings.SERVICE_NAME + " -> " + ServiceName
graphml.CreateElement_Edge(ElementGraph, ElementShapeMain, ElementTo, "", descr)
}
}
// FillLinks_goroutine - заполняет связи (стрелки) между пакетами для горутин go, синим цветом
func FillLinks_goroutine(ElementGraph *etree.Element) {
for PackageFrom, ElementFrom := range MapPackagesElements {
for _, Filename1 := range PackageFrom.GoFiles {
AstFile, err := parse_go.ParseFile(Filename1)
if err != nil {
log.Warn("ParseFile() ", Filename1, " error: ", err)
continue
}
MassGoImport := parse_go.FindGo(AstFile)
for _, GoImport1 := range MassGoImport {
//Go_package_name := GoImport1.Go_package_name
Go_package_import := GoImport1.Go_package_import
Go_func_name := GoImport1.Go_func_name
ElementImport, ok := MapServiceNameElements[Go_package_import]
if ok == false {
//посторонние импорты
//continue
ElementImport = ElementFrom
}
label := Go_func_name
descr := PackageFrom.Name + " -> " + GoImport1.Go_package_name
graphml.CreateElement_Edge_blue(ElementGraph, ElementFrom, ElementImport, label, descr)
}
//ElementImport, ok := MapServiceNameElements[PackageImport.ID]
//if ok == false {
// //посторонние импорты
// //log.Panic("MapPackagesElements[PackageImport] error: ok =false")
// continue
//}
//graphml.CreateElement_Edge(ElementGraph, ElementFrom.Index(), ElementImport.Index())
}
}
}
func FillPackage(MassPackages []*packages.Package, ElementGraph *etree.Element) {
for _, v := range MassPackages {
PackageName := v.PkgPath
////test
//pos1 := strings.Index(PackageName, "camunda")
//if pos1 > 0 {
// print("test")
//}
ServiceName := FindNeedShow(PackageName)
if ServiceName != "" {
//проверка уже нарисован
_, ok := MapServiceNameElements[ServiceName]
if ok == true {
//уже нарисован
continue
}
//рисуем элемент
ElementShape := graphml.CreateElement_Shape(ElementGraph, ServiceName)
MapPackagesElements[v] = ElementShape
MapServiceNameElements[ServiceName] = ElementShape
//
continue
}
//рекурсия всех импортов пакета
if len(v.Imports) > 0 {
// Convert map to slice of MassPackagesImports.
MassPackagesImports := []*packages.Package{}
for _, value := range v.Imports {
pos1 := strings.Index(value.PkgPath, ".")
//pos2 := strings.Index(value.PkgPath, "\\")
if pos1 > 0 {
MassPackagesImports = append(MassPackagesImports, value)
}
}
FillPackage(MassPackagesImports, ElementGraph)
}
}
}
func FindNeedShow(PackageURL string) string {
Otvet := ""
lenPackage := len(PackageURL)
for URL, ServiceName := range MapServiceURL {
lenConn := len(URL)
if lenConn > lenPackage {
continue
}
if URL != PackageURL[:lenConn] {
continue
}
Otvet = ServiceName
break
}
return Otvet
}
//func FillFolder(ElementGraph, ElementGroup *etree.Element, Folder *folders.Folder) {
//
// FolderName := Folder.Name
//
// PackageFolder1 := packages_folder.FindPackageFromFolder(Folder)
// PackageName := PackageFolder1.Name
// if PackageName == "" && len(Folder.Folders) == 0 {
// return
// }
//
// GroupName := FolderName
// lines_count, func_count := FindLinesCount_package(PackageFolder1.Package)
// if lines_count > 0 || func_count > 0 {
// GroupName = GroupName + " ("
// if func_count > 0 {
// GroupName = GroupName + strconv.Itoa(func_count) + " func"
// GroupName = GroupName + ", "
// }
// if lines_count > 0 {
// GroupName = GroupName + strconv.Itoa(lines_count) + " lines"
// }
// GroupName = GroupName + ")"
// }
//
// //добавим группа (каталог)
// var ElementGroup2 *etree.Element
// if ElementGroup != nil {
// ElementGroup2 = graphml.CreateElement_Group(ElementGroup, GroupName)
// } else {
// ElementGroup2 = graphml.CreateElement_Group(ElementGraph, GroupName)
// }
// if PackageName != "" {
// //добавим пакет(package)
// ElementShape := graphml.CreateElement_Shape(ElementGroup2, PackageName)
// MapPackagesElements[PackageFolder1.Package] = ElementShape
// MapServiceNameElements[PackageFolder1.Package.ID] = ElementShape
// //MapPackagesElements[&PackageFolder1] = ElementShape
// }
//
// //сортировка
// MassKeys := make([]string, 0, len(Folder.Folders))
// for k := range Folder.Folders {
// MassKeys = append(MassKeys, k)
// }
// sort.Strings(MassKeys)
//
// //обход всех папок
// for _, key1 := range MassKeys {
// Folder1, ok := Folder.Folders[key1]
// if ok == false {
// log.Panic("Folder.Folders[key1] ok =false")
// }
// FillFolder(ElementGraph, ElementGroup2, Folder1)
// }
//
//}
//// FindFileNameShort - возвращает имя файла(каталога) без пути
//func FindFileNameShort(path string) string {
// Otvet := ""
// if path == "" {
// return Otvet
// }
// Otvet = filepath.Base(path)
//
// return Otvet
//}
func FindLinesCount_package(Package1 *packages.Package) (int, int) {
LinesCount := 0
FuncCount := 0
if Package1 == nil {
return 0, 0
}
if Package1.GoFiles == nil {
return 0, 0
}
for _, s := range Package1.GoFiles {
count, func_count := FindLinesCount(s)
LinesCount = LinesCount + count
FuncCount = FuncCount + func_count
}
return LinesCount, FuncCount
}
func FindLinesCount(FileName string) (int, int) {
LinesCount := 0
FuncCount := 0
bytes1, err := os.ReadFile(FileName)
if err != nil {
log.Fatal(err)
}
reader := bytes.NewReader(bytes1)
LinesCount, err = LinesCount_reader(reader)
if err != nil {
log.Fatal(err)
}
FuncCount = FindFuncCount(&bytes1)
return LinesCount, FuncCount
}
func LinesCount_reader(r io.Reader) (int, error) {
Otvet := 0
var err error
buf := make([]byte, 8192)
for {
c, err := r.Read(buf)
if err != nil {
if err == io.EOF && c == 0 {
break
} else {
return Otvet, err
}
}
for _, b := range buf[:c] {
if b == '\n' {
Otvet++
}
}
}
if err == io.EOF {
err = nil
}
return Otvet, err
}
// FindFuncCount - находит количество функций(func) в файле
func FindFuncCount(bytes *[]byte) int {
Otvet := 0
s := string(*bytes)
sFind := "(\n|\t| )func( |\t)"
Otvet = CountMatches(s, regexp.MustCompile(sFind))
return Otvet
}
// CountMatches - находит количество совпадений в regexp
func CountMatches(s string, re *regexp.Regexp) int {
total := 0
for start := 0; start < len(s); {
remaining := s[start:] // slicing the string is cheap
loc := re.FindStringIndex(remaining)
if loc == nil {
break
}
// loc[0] is the start index of the match,
// loc[1] is the end index (exclusive)
start += loc[1]
total++
}
return total
}
// FindRepositoryName - находит имя папки (репозитория)
func FindRepositoryName() string {
Otvet := ""
dir := config.Settings.DIRECTORY_SOURCE
if dir == "" {
return Otvet
}
if dir == "./" {
dir = micro.ProgramDir()
}
dir = DeleteFileSeperator(dir)
Otvet = path.Base(dir)
return Otvet
}
// DeleteFileSeperator - убирает в конце / или \
func DeleteFileSeperator(dir string) string {
Otvet := dir
len1 := len(Otvet)
if len1 == 0 {
return Otvet
}
LastWord := Otvet[len1-1 : len1]
if LastWord == micro.SeparatorFile() {
Otvet = Otvet[0 : len1-1]
}
return Otvet
}

27
internal/logic/logic_test.go Normal file
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package logic
import (
"github.com/ManyakRus/image_database/internal/config"
ConfigMain "github.com/ManyakRus/starter/config"
"github.com/ManyakRus/starter/micro"
"testing"
)
func TestStartFillAll(t *testing.T) {
ConfigMain.LoadEnv()
config.FillSettings()
dir := micro.ProgramDir()
FileName := dir + "test" + micro.SeparatorFile() + "test_start.xgml"
StartFillAll(FileName)
}
func TestFindRepositoryName(t *testing.T) {
ConfigMain.LoadEnv()
config.FillSettings()
Otvet := FindRepositoryName()
if Otvet == "" {
t.Error("TestFindRepositoryName() error: =''")
}
}

37
internal/main.go Normal file
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package main
import (
"github.com/ManyakRus/image_database/internal/config"
"github.com/ManyakRus/image_database/internal/constants"
"github.com/ManyakRus/image_database/internal/load_json"
"github.com/ManyakRus/image_database/internal/logic"
ConfigMain "github.com/ManyakRus/starter/config"
"github.com/ManyakRus/starter/log"
)
func main() {
StartApp()
}
func StartApp() {
ConfigMain.LoadEnv()
config.FillSettings()
config.FillFlags()
load_json.LoadJSON()
FileName := config.Settings.FILENAME_GRAPHML
log.Info("directory: ", config.Settings.DIRECTORY_SOURCE)
log.Info("file graphml: ", FileName)
log.Info("service name: ", config.Settings.SERVICE_NAME)
ok := logic.StartFillAll(FileName)
if ok == false {
println(constants.TEXT_HELP)
}
////test
//test1 := postgres_connect.Settings.DB_HOST
//test2 := whatsapp_connect.Settings.WHATSAPP_PHONE_FROM
//if test1+test2 == "" {
//}
}

9
internal/main_test.go Normal file
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package main
import (
"testing"
)
func TestStartApp(t *testing.T) {
StartApp()
}

704
pkg/graphml/graphml.go Normal file
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package graphml
import (
"fmt"
"github.com/beevik/etree"
_ "github.com/beevik/etree"
"math"
"strconv"
"strings"
)
// FONT_SIZE_SHAPE - размер шрифта прямоугольника
var FONT_SIZE_SHAPE = 16
// FONT_SIZE_SHAPE - размер шрифта групп
var FONT_SIZE_GROUP = 10
// FONT_SIZE_EDGE - размер шрифта стрелок
var FONT_SIZE_EDGE = 8
//var doc = etree.NewDocument()
// CreateElement_Shape - создаёт элемент xgml - прямоугольник
func CreateElement_Shape(ElementGraph0 *etree.Element, ElementName string) *etree.Element {
Width := findWidth_Shape(ElementName)
Height := findHeight_Shape(ElementName)
sWidth := fmt.Sprintf("%.1f", float32(Width))
sHeight := fmt.Sprintf("%.1f", float32(Height))
sFontSize := strconv.Itoa(FONT_SIZE_SHAPE)
//ищем graph
var ElementGraph *etree.Element
ElementGraph2 := ElementGraph0.SelectElement("graph")
if ElementGraph2 != nil {
ElementGraph = ElementGraph2
} else {
ElementGraph = ElementGraph0
}
//node
ElementNode := ElementGraph.CreateElement("node")
sId := FindId(ElementGraph0, ElementNode)
ElementNode.CreateAttr("id", sId)
//ElementNode.CreateAttr("id", "n"+strconv.Itoa(ElementNode.Index()))
//data
ElementData := ElementNode.CreateElement("data")
ElementData.CreateAttr("key", "d5")
//ShapeNode
ElementShapeNode := ElementData.CreateElement("y:ShapeNode")
//YGeometry
ElementYGeometry := ElementShapeNode.CreateElement("y:Geometry")
ElementYGeometry.CreateAttr("height", sHeight)
ElementYGeometry.CreateAttr("width", sWidth)
ElementYGeometry.CreateAttr("x", "0.0")
ElementYGeometry.CreateAttr("y", "0.0")
//YFill
ElementYFill := ElementShapeNode.CreateElement("y:Fill")
ElementYFill.CreateAttr("color", "#FFFFFF")
ElementYFill.CreateAttr("transparent", "false")
//BorderStyle
ElementBorderStyle := ElementShapeNode.CreateElement("y:BorderStyle")
ElementBorderStyle.CreateAttr("color", "#000000")
ElementBorderStyle.CreateAttr("type", "line")
ElementBorderStyle.CreateAttr("width", "1.0")
//NodeLabel
ElementNodeLabel := ElementShapeNode.CreateElement("y:NodeLabel")
ElementNodeLabel.CreateAttr("alignment", "center")
ElementNodeLabel.CreateAttr("autoSizePolicy", "content")
ElementNodeLabel.CreateAttr("fontFamily", "Dialog")
ElementNodeLabel.CreateAttr("fontSize", sFontSize)
ElementNodeLabel.CreateAttr("fontStyle", "plain")
ElementNodeLabel.CreateAttr("hasBackgroundColor", "false")
ElementNodeLabel.CreateAttr("hasLineColor", "false")
ElementNodeLabel.CreateAttr("height", sHeight)
ElementNodeLabel.CreateAttr("horizontalTextPosition", "center")
ElementNodeLabel.CreateAttr("iconTextGap", "4")
ElementNodeLabel.CreateAttr("modelName", "internal")
ElementNodeLabel.CreateAttr("modelPosition", "c")
ElementNodeLabel.CreateAttr("textColor", "#000000")
ElementNodeLabel.CreateAttr("verticalTextPosition", "bottom")
ElementNodeLabel.CreateAttr("visible", "true")
ElementNodeLabel.CreateAttr("width", sWidth)
ElementNodeLabel.CreateAttr("x", "0.0")
ElementNodeLabel.CreateAttr("xml:space", "preserve")
ElementNodeLabel.CreateAttr("y", "0.0")
ElementNodeLabel.CreateText(ElementName)
//y:Shape
ElementYShape := ElementShapeNode.CreateElement("y:Shape")
ElementYShape.CreateAttr("type", "rectangle")
return ElementNode
}
// CreateElement_Group - создаёт элемент xgml - группа
func CreateElement_Group(ElementGraph0 *etree.Element, GroupCaption string) *etree.Element {
Width := findWidth_Group(GroupCaption)
Height := findHeight_Group(GroupCaption)
sWidth := fmt.Sprintf("%.1f", float32(Width))
sHeight := fmt.Sprintf("%.1f", float32(Height))
//ищем graph
var ElementGraph *etree.Element
ElementGraph2 := ElementGraph0.SelectElement("graph")
if ElementGraph2 != nil {
ElementGraph = ElementGraph2
} else {
ElementGraph = ElementGraph0
}
//node
ElementNode := ElementGraph.CreateElement("node")
//NodeId := "n" + strconv.Itoa(ElementNode.Index())
NodeId := FindId(ElementGraph, ElementNode)
ElementNode.CreateAttr("id", NodeId)
ElementNode.CreateAttr("yfiles.foldertype", "group")
//data
ElementData := ElementNode.CreateElement("data")
ElementData.CreateAttr("key", "d5")
//YProxyAutoBoundsNode
ElementYProxyAutoBoundsNode := ElementData.CreateElement("y:ProxyAutoBoundsNode")
//YRealizers
ElementYRealizers := ElementYProxyAutoBoundsNode.CreateElement("y:Realizers")
ElementYRealizers.CreateAttr("active", "0")
//----------------------- visible ---------------------------------------------
//YGroupNode
ElementYGroupNode := ElementYRealizers.CreateElement("y:GroupNode")
//YGeometry
ElementYGeometry := ElementYGroupNode.CreateElement("y:Geometry")
ElementYGeometry.CreateAttr("height", sHeight)
ElementYGeometry.CreateAttr("width", sWidth)
ElementYGeometry.CreateAttr("x", "0.0")
ElementYGeometry.CreateAttr("y", "0.0")
//YFill
ElementYFill := ElementYGroupNode.CreateElement("y:Fill")
ElementYFill.CreateAttr("color", "#F5F5F5")
ElementYFill.CreateAttr("transparent", "false")
//YBorderStyle
ElementYBorderStyle := ElementYGroupNode.CreateElement("y:BorderStyle")
ElementYBorderStyle.CreateAttr("color", "#000000")
ElementYBorderStyle.CreateAttr("type", "dashed")
ElementYBorderStyle.CreateAttr("width", "1.0")
//YNodeLabel
ElementYNodeLabel := ElementYGroupNode.CreateElement("y:NodeLabel")
ElementYNodeLabel.CreateAttr("alignment", "right")
ElementYNodeLabel.CreateAttr("autoSizePolicy", "content")
ElementYNodeLabel.CreateAttr("backgroundColor", "#EBEBEB")
ElementYNodeLabel.CreateAttr("borderDistance", "0.0")
ElementYNodeLabel.CreateAttr("fontFamily", "Dialog")
ElementYNodeLabel.CreateAttr("fontSize", strconv.Itoa(FONT_SIZE_GROUP))
ElementYNodeLabel.CreateAttr("fontStyle", "plain")
ElementYNodeLabel.CreateAttr("hasLineColor", "false")
ElementYNodeLabel.CreateAttr("height", sHeight)
ElementYNodeLabel.CreateAttr("horizontalTextPosition", "center")
ElementYNodeLabel.CreateAttr("iconTextGap", "4")
ElementYNodeLabel.CreateAttr("modelName", "sandwich")
ElementYNodeLabel.CreateAttr("modelPosition", "n")
ElementYNodeLabel.CreateAttr("textColor", "#000000")
ElementYNodeLabel.CreateAttr("verticalTextPosition", "bottom")
ElementYNodeLabel.CreateAttr("width", sWidth)
ElementYNodeLabel.CreateAttr("x", "0")
ElementYNodeLabel.CreateAttr("xml:space", "preserve")
ElementYNodeLabel.CreateAttr("y", "0")
ElementYNodeLabel.CreateText(GroupCaption)
//YShape
ElementYShape := ElementYGroupNode.CreateElement("y:Shape")
ElementYShape.CreateAttr("type", "roundrectangle")
//YState
ElementYState := ElementYGroupNode.CreateElement("y:State")
ElementYState.CreateAttr("closed", "false")
ElementYState.CreateAttr("closedHeight", "80.0")
ElementYState.CreateAttr("closedWidth", "100.0")
ElementYState.CreateAttr("innerGraphDisplayEnabled", "false")
//YInsets
ElementYInsets := ElementYGroupNode.CreateElement("y:Insets")
ElementYInsets.CreateAttr("bottom", "15")
ElementYInsets.CreateAttr("bottomF", "15.0")
ElementYInsets.CreateAttr("left", "15")
ElementYInsets.CreateAttr("leftF", "15.0")
ElementYInsets.CreateAttr("right", "15")
ElementYInsets.CreateAttr("rightF", "15.0")
ElementYInsets.CreateAttr("top", "15")
ElementYInsets.CreateAttr("topF", "15.0")
//YBorderInsets
ElementYBorderInsets := ElementYGroupNode.CreateElement("y:BorderInsets")
ElementYBorderInsets.CreateAttr("bottom", "54")
ElementYBorderInsets.CreateAttr("bottomF", "54.0")
ElementYBorderInsets.CreateAttr("left", "0")
ElementYBorderInsets.CreateAttr("leftF", "0.0")
ElementYBorderInsets.CreateAttr("right", "23")
ElementYBorderInsets.CreateAttr("rightF", "23.35")
ElementYBorderInsets.CreateAttr("top", "0")
ElementYBorderInsets.CreateAttr("topF", "0.0")
//----------------------- not visible ---------------------------------------------
//YGroupNode
ElementYGroupNode2 := ElementYRealizers.CreateElement("y:GroupNode")
//YGeometry
ElementYGeometry2 := ElementYGroupNode2.CreateElement("y:Geometry")
ElementYGeometry2.CreateAttr("height", sHeight)
ElementYGeometry2.CreateAttr("width", sWidth)
ElementYGeometry2.CreateAttr("x", "0.0")
ElementYGeometry2.CreateAttr("y", "0.0")
//YFill
ElementYFill2 := ElementYGroupNode2.CreateElement("y:Fill")
ElementYFill2.CreateAttr("color", "#F5F5F5")
ElementYFill2.CreateAttr("transparent", "false")
//YBorderStyle
ElementYBorderStyle2 := ElementYGroupNode2.CreateElement("y:BorderStyle")
ElementYBorderStyle2.CreateAttr("color", "#000000")
ElementYBorderStyle2.CreateAttr("type", "dashed")
ElementYBorderStyle2.CreateAttr("width", "1.0")
//YNodeLabel
ElementYNodeLabel2 := ElementYGroupNode2.CreateElement("y:NodeLabel")
ElementYNodeLabel2.CreateAttr("alignment", "right")
ElementYNodeLabel2.CreateAttr("autoSizePolicy", "content")
ElementYNodeLabel2.CreateAttr("backgroundColor", "#EBEBEB")
ElementYNodeLabel2.CreateAttr("borderDistance", "0.0")
ElementYNodeLabel2.CreateAttr("fontFamily", "Dialog")
ElementYNodeLabel2.CreateAttr("fontSize", strconv.Itoa(FONT_SIZE_GROUP))
ElementYNodeLabel2.CreateAttr("fontStyle", "plain")
ElementYNodeLabel2.CreateAttr("hasLineColor", "false")
ElementYNodeLabel2.CreateAttr("hasText", "false") //только у 2
ElementYNodeLabel2.CreateAttr("height", sHeight)
ElementYNodeLabel2.CreateAttr("horizontalTextPosition", "center")
ElementYNodeLabel2.CreateAttr("iconTextGap", "4")
ElementYNodeLabel2.CreateAttr("modelName", "sandwich")
ElementYNodeLabel2.CreateAttr("modelPosition", "n")
ElementYNodeLabel2.CreateAttr("textColor", "#000000")
ElementYNodeLabel2.CreateAttr("verticalTextPosition", "bottom")
ElementYNodeLabel2.CreateAttr("width", sWidth)
ElementYNodeLabel2.CreateAttr("x", "0")
//ElementYNodeLabel2.CreateAttr("xml:space", "preserve") //только у 2
ElementYNodeLabel2.CreateAttr("y", "0")
//ElementYNodeLabel2.CreateText(GroupCaption) //только у 2
//YShape
ElementYShape2 := ElementYGroupNode2.CreateElement("y:Shape")
ElementYShape2.CreateAttr("type", "roundrectangle")
//YState
ElementYState2 := ElementYGroupNode2.CreateElement("y:State")
ElementYState2.CreateAttr("closed", "true")
ElementYState2.CreateAttr("closedHeight", "80.0")
ElementYState2.CreateAttr("closedWidth", "100.0")
ElementYState2.CreateAttr("innerGraphDisplayEnabled", "false")
//YInsets
ElementYInsets2 := ElementYGroupNode2.CreateElement("y:Insets")
ElementYInsets2.CreateAttr("bottom", "15")
ElementYInsets2.CreateAttr("bottomF", "15.0")
ElementYInsets2.CreateAttr("left", "15")
ElementYInsets2.CreateAttr("leftF", "15.0")
ElementYInsets2.CreateAttr("right", "15")
ElementYInsets2.CreateAttr("rightF", "15.0")
ElementYInsets2.CreateAttr("top", "15")
ElementYInsets2.CreateAttr("topF", "15.0")
//YBorderInsets
ElementYBorderInsets2 := ElementYGroupNode2.CreateElement("y:BorderInsets")
ElementYBorderInsets2.CreateAttr("bottom", "54")
ElementYBorderInsets2.CreateAttr("bottomF", "54.0")
ElementYBorderInsets2.CreateAttr("left", "0")
ElementYBorderInsets2.CreateAttr("leftF", "0.0")
ElementYBorderInsets2.CreateAttr("right", "23")
ElementYBorderInsets2.CreateAttr("rightF", "23.35")
ElementYBorderInsets2.CreateAttr("top", "0")
ElementYBorderInsets2.CreateAttr("topF", "0.0")
//----------------------- продолжение ---------------------------------------------
//YBorderInsets
ElementGraphGraph := ElementNode.CreateElement("graph")
ElementGraphGraph.CreateAttr("edgedefault", "directed")
ElementGraphGraph.CreateAttr("id", NodeId+":")
return ElementNode
}
// CreateElement_Edge - создаёт элемент xgml - стрелка
func CreateElement_Edge(ElementGraph, ElementFrom, ElementTo *etree.Element, label, Description string) *etree.Element {
//node
ElementEdge := ElementGraph.CreateElement("edge")
//EdgeId := FindId(ElementGraph, ElementEdge)
//EdgeID := EdgeId
EdgeID := "e" + strconv.Itoa(ElementEdge.Index())
ElementEdge.CreateAttr("id", EdgeID)
//Source := "n" + strconv.Itoa(IndexElementFrom) + "::" + "n" + strconv.Itoa(IndexElementTo)
IdFrom := FindId(ElementGraph, ElementFrom)
IdTo := FindId(ElementGraph, ElementTo)
ElementEdge.CreateAttr("source", IdFrom)
ElementEdge.CreateAttr("target", IdTo)
//data
ElementData := ElementEdge.CreateElement("data")
ElementData.CreateAttr("key", "d8")
ElementData.CreateAttr("xml:space", "preserve")
//ElementData.CreateText("<![CDATA[descr]]>")
//ElementData.CreateElement("![CDATA[descr]]")
ElementData.CreateCData(Description)
//data2
ElementData2 := ElementEdge.CreateElement("data")
ElementData2.CreateAttr("key", "d9")
//y:PolyLineEdge
ElementYPolyLineEdge := ElementData2.CreateElement("y:PolyLineEdge")
//y:Path
ElementYPath := ElementYPolyLineEdge.CreateElement("y:Path")
ElementYPath.CreateAttr("sx", "0.0")
ElementYPath.CreateAttr("sy", "0.0")
ElementYPath.CreateAttr("tx", "0.0")
ElementYPath.CreateAttr("ty", "0.0")
//y:LineStyle
ElementYLineStyle := ElementYPolyLineEdge.CreateElement("y:LineStyle")
ElementYLineStyle.CreateAttr("color", "#000000")
ElementYLineStyle.CreateAttr("type", "line")
ElementYLineStyle.CreateAttr("width", "1.0")
//y:Arrows
ElementYArrows := ElementYPolyLineEdge.CreateElement("y:Arrows")
ElementYArrows.CreateAttr("source", "standard")
ElementYArrows.CreateAttr("target", "standard")
//y:EdgeLabel
ElementYEdgeLabel := ElementYPolyLineEdge.CreateElement("y:EdgeLabel")
ElementYEdgeLabel.CreateAttr("alignment", "center")
ElementYEdgeLabel.CreateAttr("configuration", "AutoFlippingLabel")
ElementYEdgeLabel.CreateAttr("distance", "0.0")
ElementYEdgeLabel.CreateAttr("fontFamily", "Dialog")
ElementYEdgeLabel.CreateAttr("fontSize", strconv.Itoa(FONT_SIZE_EDGE))
ElementYEdgeLabel.CreateAttr("fontStyle", "plain")
ElementYEdgeLabel.CreateAttr("hasBackgroundColor", "false")
ElementYEdgeLabel.CreateAttr("hasLineColor", "false")
ElementYEdgeLabel.CreateAttr("height", "17.96875")
ElementYEdgeLabel.CreateAttr("horizontalTextPosition", "center")
ElementYEdgeLabel.CreateAttr("iconTextGap", "4")
ElementYEdgeLabel.CreateAttr("modelName", "centered")
ElementYEdgeLabel.CreateAttr("modelPosition", "head")
ElementYEdgeLabel.CreateAttr("preferredPlacement", "anywhere")
ElementYEdgeLabel.CreateAttr("ratio", "0.5")
ElementYEdgeLabel.CreateAttr("textColor", "#000000")
ElementYEdgeLabel.CreateAttr("verticalTextPosition", "bottom")
ElementYEdgeLabel.CreateAttr("visible", "true")
ElementYEdgeLabel.CreateAttr("width", "41.8")
ElementYEdgeLabel.CreateAttr("x", "71.5")
ElementYEdgeLabel.CreateAttr("xml:space", "preserve")
ElementYEdgeLabel.CreateAttr("y", "0.5")
ElementYEdgeLabel.CreateAttr("bottomInset", "0")
ElementYEdgeLabel.CreateAttr("leftInset", "0")
ElementYEdgeLabel.CreateAttr("rightInset", "0")
ElementYEdgeLabel.CreateAttr("topInset", "0")
ElementYEdgeLabel.CreateText(label)
//y:PreferredPlacementDescriptor
ElementYPreferredPlacementDescriptor := ElementYEdgeLabel.CreateElement("y:PreferredPlacementDescriptor")
ElementYPreferredPlacementDescriptor.CreateAttr("angle", "0.0")
ElementYPreferredPlacementDescriptor.CreateAttr("angleOffsetOnRightSide", "0")
ElementYPreferredPlacementDescriptor.CreateAttr("angleReference", "absolute")
ElementYPreferredPlacementDescriptor.CreateAttr("angleRotationOnRightSide", "co")
ElementYPreferredPlacementDescriptor.CreateAttr("distance", "-1.0")
ElementYPreferredPlacementDescriptor.CreateAttr("frozen", "true")
ElementYPreferredPlacementDescriptor.CreateAttr("placement", "anywhere")
ElementYPreferredPlacementDescriptor.CreateAttr("side", "anywhere")
ElementYPreferredPlacementDescriptor.CreateAttr("sideReference", "relative_to_edge_flow")
//y:BendStyle
ElementYBendStyle := ElementYPolyLineEdge.CreateElement("y:BendStyle")
ElementYBendStyle.CreateAttr("smoothed", "false")
return ElementEdge
}
// CreateElement_Edge_blue - создаёт элемент xgml - стрелка синяя с заголовком
func CreateElement_Edge_blue(ElementGraph, ElementFrom, ElementTo *etree.Element, label, Description string) *etree.Element {
//node
ElementEdge := ElementGraph.CreateElement("edge")
//EdgeId := FindId(ElementGraph, ElementEdge)
//EdgeID := EdgeId
EdgeID := "e" + strconv.Itoa(ElementEdge.Index())
ElementEdge.CreateAttr("id", EdgeID)
//Source := "n" + strconv.Itoa(IndexElementFrom) + "::" + "n" + strconv.Itoa(IndexElementTo)
IdFrom := FindId(ElementGraph, ElementFrom)
IdTo := FindId(ElementGraph, ElementTo)
ElementEdge.CreateAttr("source", IdFrom)
ElementEdge.CreateAttr("target", IdTo)
//data
ElementData := ElementEdge.CreateElement("data")
ElementData.CreateAttr("key", "d8")
ElementData.CreateAttr("xml:space", "preserve")
//ElementData.CreateText("<![CDATA[descr]]>")
//ElementData.CreateElement("![CDATA[descr]]")
ElementData.CreateCData(Description)
//data2
ElementData2 := ElementEdge.CreateElement("data")
ElementData2.CreateAttr("key", "d9")
//y:PolyLineEdge
ElementYPolyLineEdge := ElementData2.CreateElement("y:PolyLineEdge")
//y:Path
ElementYPath := ElementYPolyLineEdge.CreateElement("y:Path")
ElementYPath.CreateAttr("sx", "0.0")
ElementYPath.CreateAttr("sy", "0.0")
ElementYPath.CreateAttr("tx", "0.0")
ElementYPath.CreateAttr("ty", "0.0")
//y:LineStyle
ElementYLineStyle := ElementYPolyLineEdge.CreateElement("y:LineStyle")
ElementYLineStyle.CreateAttr("color", "#0000FF")
ElementYLineStyle.CreateAttr("type", "line")
ElementYLineStyle.CreateAttr("width", "1.0")
//y:Arrows
ElementYArrows := ElementYPolyLineEdge.CreateElement("y:Arrows")
ElementYArrows.CreateAttr("source", "none")
ElementYArrows.CreateAttr("target", "standard")
//y:EdgeLabel
ElementYEdgeLabel := ElementYPolyLineEdge.CreateElement("y:EdgeLabel")
ElementYEdgeLabel.CreateAttr("alignment", "center")
ElementYEdgeLabel.CreateAttr("configuration", "AutoFlippingLabel")
ElementYEdgeLabel.CreateAttr("distance", "0.0")
ElementYEdgeLabel.CreateAttr("fontFamily", "Dialog")
ElementYEdgeLabel.CreateAttr("fontSize", strconv.Itoa(FONT_SIZE_EDGE))
ElementYEdgeLabel.CreateAttr("fontStyle", "plain")
ElementYEdgeLabel.CreateAttr("hasBackgroundColor", "false")
ElementYEdgeLabel.CreateAttr("hasLineColor", "false")
ElementYEdgeLabel.CreateAttr("height", "17.96875")
ElementYEdgeLabel.CreateAttr("horizontalTextPosition", "center")
ElementYEdgeLabel.CreateAttr("iconTextGap", "4")
ElementYEdgeLabel.CreateAttr("modelName", "centered")
ElementYEdgeLabel.CreateAttr("modelPosition", "head")
ElementYEdgeLabel.CreateAttr("preferredPlacement", "anywhere")
ElementYEdgeLabel.CreateAttr("ratio", "0.5")
ElementYEdgeLabel.CreateAttr("textColor", "#0000FF")
ElementYEdgeLabel.CreateAttr("verticalTextPosition", "bottom")
ElementYEdgeLabel.CreateAttr("visible", "true")
ElementYEdgeLabel.CreateAttr("width", "41.8")
ElementYEdgeLabel.CreateAttr("x", "71.5")
ElementYEdgeLabel.CreateAttr("xml:space", "preserve")
ElementYEdgeLabel.CreateAttr("y", "0.5")
ElementYEdgeLabel.CreateAttr("bottomInset", "0")
ElementYEdgeLabel.CreateAttr("leftInset", "0")
ElementYEdgeLabel.CreateAttr("rightInset", "0")
ElementYEdgeLabel.CreateAttr("topInset", "0")
ElementYEdgeLabel.CreateText(label)
//y:PreferredPlacementDescriptor
ElementYPreferredPlacementDescriptor := ElementYEdgeLabel.CreateElement("y:PreferredPlacementDescriptor")
ElementYPreferredPlacementDescriptor.CreateAttr("angle", "0.0")
ElementYPreferredPlacementDescriptor.CreateAttr("angleOffsetOnRightSide", "0")
ElementYPreferredPlacementDescriptor.CreateAttr("angleReference", "absolute")
ElementYPreferredPlacementDescriptor.CreateAttr("angleRotationOnRightSide", "co")
ElementYPreferredPlacementDescriptor.CreateAttr("distance", "-1.0")
ElementYPreferredPlacementDescriptor.CreateAttr("frozen", "true")
ElementYPreferredPlacementDescriptor.CreateAttr("placement", "anywhere")
ElementYPreferredPlacementDescriptor.CreateAttr("side", "anywhere")
ElementYPreferredPlacementDescriptor.CreateAttr("sideReference", "relative_to_edge_flow")
//y:BendStyle
ElementYBendStyle := ElementYPolyLineEdge.CreateElement("y:BendStyle")
ElementYBendStyle.CreateAttr("smoothed", "false")
return ElementEdge
}
// findWidth_Shape - возвращает число - ширину элемента
func findWidth_Shape(ElementName string) int {
Otvet := FONT_SIZE_SHAPE * 2
LenMax := findMaxLenRow(ElementName)
var OtvetF float64
OtvetF = float64(Otvet) + float64(LenMax)*float64(FONT_SIZE_SHAPE/2)
Otvet = int(math.Round(OtvetF))
return Otvet
}
// findHeight_Shape - возвращает число - высоту элемента
func findHeight_Shape(ElementName string) int {
Otvet := 10 + FONT_SIZE_SHAPE*3
RowsTotal := countLines(ElementName)
Otvet = Otvet + (RowsTotal-1)*FONT_SIZE_SHAPE*2
return Otvet
}
// findWidth_Group - возвращает число - ширину элемента
func findWidth_Group(ElementName string) int {
Otvet := 10
LenMax := findMaxLenRow(ElementName)
var OtvetF float64
OtvetF = float64(Otvet) + float64(LenMax)*10
Otvet = int(math.Round(OtvetF))
return Otvet
}
// findHeight_Group - возвращает число - высоту элемента
func findHeight_Group(ElementName string) int {
Otvet := 30
RowsTotal := countLines(ElementName)
Otvet = Otvet + (RowsTotal-1)*18
return Otvet
}
// findWidth_Edge - возвращает число - ширину элемента
func findWidth_Edge(Label string) int {
Otvet := 10
LenMax := findMaxLenRow(Label)
var OtvetF float64
OtvetF = float64(Otvet) + float64(LenMax)*10
Otvet = int(math.Round(OtvetF))
return Otvet
}
// findHeight_Edge - возвращает число - высоту элемента
func findHeight_Edge(Label string) int {
Otvet := 30
RowsTotal := countLines(Label)
Otvet = Otvet + (RowsTotal-1)*18
return Otvet
}
// countLines - возвращает количество переводов строки
func countLines(s string) int {
Otvet := 0
Otvet = strings.Count(s, "\n")
return Otvet
}
// findMaxLenRow - возвращает количество символов в строке максимум
func findMaxLenRow(ElementName string) int {
Otvet := 0
Mass := strings.Split(ElementName, "\n")
for _, Mass1 := range Mass {
len1 := len(Mass1)
if len1 > Otvet {
Otvet = len1
}
}
return Otvet
}
// CreateDocument - создаёт новый документ .xgml
func CreateDocument() (*etree.Document, *etree.Element) {
DocXML := etree.NewDocument()
DocXML.CreateProcInst("xml", `version="1.0" encoding="UTF-8" standalone="no"`)
ElementGraphMl := DocXML.CreateElement("graphml")
ElementGraphMl.CreateAttr("xmlns", "http://graphml.graphdrawing.org/xmlns")
ElementGraphMl.CreateAttr("xmlns:java", "http://www.yworks.com/xml/yfiles-common/1.0/java")
ElementGraphMl.CreateAttr("xmlns:sys", "http://www.yworks.com/xml/yfiles-common/markup/primitives/2.0")
ElementGraphMl.CreateAttr("xmlns:x", "http://www.yworks.com/xml/yfiles-common/markup/2.0")
ElementGraphMl.CreateAttr("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance")
ElementGraphMl.CreateAttr("xmlns:y", "http://www.yworks.com/xml/graphml")
ElementGraphMl.CreateAttr("xmlns:y", "http://www.yworks.com/xml/graphml")
ElementGraphMl.CreateAttr("xmlns:yed", "http://www.yworks.com/xml/yed/3")
ElementGraphMl.CreateAttr("xsi:schemaLocation", "http://graphml.graphdrawing.org/xmlns http://www.yworks.com/xml/schema/graphml/1.1/ygraphml.xsd")
ElementD0 := ElementGraphMl.CreateElement("key")
ElementD0.CreateAttr("for", "port")
ElementD0.CreateAttr("id", "d0")
ElementD0.CreateAttr("yfiles.type", "portgraphics")
ElementD1 := ElementGraphMl.CreateElement("key")
ElementD1.CreateAttr("for", "port")
ElementD1.CreateAttr("id", "d1")
ElementD1.CreateAttr("yfiles.type", "portgeometry")
ElementD2 := ElementGraphMl.CreateElement("key")
ElementD2.CreateAttr("for", "port")
ElementD2.CreateAttr("id", "d2")
ElementD2.CreateAttr("yfiles.type", "portuserdata")
ElementD3 := ElementGraphMl.CreateElement("key")
ElementD3.CreateAttr("attr.name", "url")
ElementD3.CreateAttr("attr.type", "string")
ElementD3.CreateAttr("for", "node")
ElementD3.CreateAttr("id", "d3")
ElementD4 := ElementGraphMl.CreateElement("key")
ElementD4.CreateAttr("attr.name", "description")
ElementD4.CreateAttr("attr.type", "string")
ElementD4.CreateAttr("for", "node")
ElementD4.CreateAttr("id", "d4")
ElementD5 := ElementGraphMl.CreateElement("key")
ElementD5.CreateAttr("for", "node")
ElementD5.CreateAttr("id", "d5")
ElementD5.CreateAttr("yfiles.type", "nodegraphics")
ElementD6 := ElementGraphMl.CreateElement("key")
ElementD6.CreateAttr("for", "graphml")
ElementD6.CreateAttr("id", "d6")
ElementD6.CreateAttr("yfiles.type", "resources")
ElementD7 := ElementGraphMl.CreateElement("key")
ElementD7.CreateAttr("attr.name", "url")
ElementD7.CreateAttr("attr.type", "string")
ElementD7.CreateAttr("for", "edge")
ElementD7.CreateAttr("id", "d7")
ElementD8 := ElementGraphMl.CreateElement("key")
ElementD8.CreateAttr("attr.name", "description")
ElementD8.CreateAttr("attr.type", "string")
ElementD8.CreateAttr("for", "edge")
ElementD8.CreateAttr("id", "d8")
ElementD9 := ElementGraphMl.CreateElement("key")
ElementD9.CreateAttr("for", "edge")
ElementD9.CreateAttr("id", "d9")
ElementD9.CreateAttr("yfiles.type", "edgegraphics")
ElementGraph := ElementGraphMl.CreateElement("graph")
ElementGraph.CreateAttr("edgedefault", "directed")
ElementGraph.CreateAttr("id", "G")
return DocXML, ElementGraph
}
// FindId - находит ИД в формате "n1::n1::n1"
func FindId(ElementGraph0, Element *etree.Element) string {
Otvet := ""
if Element == nil {
return Otvet
}
//if Element == ElementGraph0 {
// return Otvet
//}
if Element.Tag == "node" {
Otvet = "n" + strconv.Itoa(Element.Index())
//return Otvet
}
ParentSID := FindId(ElementGraph0, Element.Parent())
if ParentSID != "" {
if Otvet == "" {
Otvet = ParentSID
} else {
Otvet = ParentSID + "::" + Otvet
}
}
return Otvet
}

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package graphml
import (
"github.com/ManyakRus/starter/micro"
"testing"
)
func TestCreateNewGraphml(t *testing.T) {
dir := micro.ProgramDir()
DocXML, ElementGraph := CreateDocument()
if ElementGraph == nil {
}
Shape2 := CreateElement_Shape(ElementGraph, "Shape2")
//ElementGraph := DocXML.FindElement("/section/section")
//
Group1 := CreateElement_Group(ElementGraph, "Group1")
//
//Element1 := CreateElement_Shape(ElementGraph, Group1, "Entity1")
Shape1 := CreateElement_Shape(Group1, "Shape1")
CreateElement_Edge(ElementGraph, Shape1, Shape2, "edge1", "descr")
CreateElement_Edge_blue(ElementGraph, Shape2, Shape1, "edge2", "descr2")
//
//CreateElement_Edge_blue(ElementGraph, Element1.Index(), Element2.Index(), "test()")
if Shape1 == nil || Shape2 == nil {
}
FileName := dir + "test" + micro.SeparatorFile() + "test.graphml"
//DocXML.IndentTabs()
DocXML.Indent(2)
err := DocXML.WriteToFile(FileName)
if err != nil {
t.Error("TestCreateNewXGML() error: ", err)
}
}

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settings/connections.txt Normal file
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{
"github.com/segmentio/kafka-go": "Kafka",
"gorm.io/driver/postgres": "Postgres",
"github.com/camunda/zeebe/clients/go/v8": "Camunda",
"gitlab.aescorp.ru/dsp_dev/claim/nikitin/nats_connect": "Nats",
"github.com/nats-io/nats.go": "Nats",
"github.com/minio/minio-go": "Minio",
"github.com/sashabaranov/go-openai": "Chat GPT",
"github.com/xhit/go-simple-mail": "EMail server",
"github.com/emersion/go-imap": "EMail IMAP server",
"github.com/denisenkom/go-mssqldb": "MSSQL",
"github.com/lib/pq": "Postgres",
"github.com/jackc/pgx": "Postgres",
"github.com/gotd": "Telegram",
"go.mau.fi/whatsmeow": "Whatsapp",
"github.com/mattn/go-sqlite3": "SQL Lite3",
"net/http": "WEB",
"github.com/valyala/fasthttp": "WEB",
"github.com/gin-gonic/gin": "WEB",
"github.com/rabbitmq/amqp091-go": "RabbitMQ",
"github.com/ManyakRus/starter/kafka_connect": "Kafka",
"github.com/ManyakRus/starter/postgres_gorm": "Postgres",
"github.com/ManyakRus/starter/camunda_connect": "Camunda",
"github.com/ManyakRus/starter/nats_connect": "Nats",
"github.com/ManyakRus/starter/minio_connect": "Minio",
"github.com/ManyakRus/starter/liveness": "WEB server\nLiveness",
"github.com/ManyakRus/starter/whatsapp_connect": "Whatsapp",
"github.com/go-redis/redis": "Redis",
"github.com/gorilla/websocket": "Web socket",
"github.com/Nerzal/gocloak": "Keycloak",
"github.com/prometheus/client_golang/prometheus/promhttp": "Prometeus"
}

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{
"Service1": "github.com/ManyakRus/1",
"Service2": "github.com/ManyakRus/2"
}

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns" xmlns:java="http://www.yworks.com/xml/yfiles-common/1.0/java" xmlns:sys="http://www.yworks.com/xml/yfiles-common/markup/primitives/2.0" xmlns:x="http://www.yworks.com/xml/yfiles-common/markup/2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:y="http://www.yworks.com/xml/graphml" xmlns:yed="http://www.yworks.com/xml/yed/3" xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://www.yworks.com/xml/schema/graphml/1.1/ygraphml.xsd">
<key for="port" id="d0" yfiles.type="portgraphics"/>
<key for="port" id="d1" yfiles.type="portgeometry"/>
<key for="port" id="d2" yfiles.type="portuserdata"/>
<key attr.name="url" attr.type="string" for="node" id="d3"/>
<key attr.name="description" attr.type="string" for="node" id="d4"/>
<key for="node" id="d5" yfiles.type="nodegraphics"/>
<key for="graphml" id="d6" yfiles.type="resources"/>
<key attr.name="url" attr.type="string" for="edge" id="d7"/>
<key attr.name="description" attr.type="string" for="edge" id="d8"/>
<key for="edge" id="d9" yfiles.type="edgegraphics"/>
<graph edgedefault="directed" id="G">
<node id="n0">
<data key="d5">
<y:ShapeNode>
<y:Geometry height="26.0" width="80.0" x="0.0" y="0.0"/>
<y:Fill color="#FFFFFF" transparent="false"/>
<y:BorderStyle color="#000000" type="line" width="1.0"/>
<y:NodeLabel alignment="center" autoSizePolicy="content" fontFamily="Dialog" fontSize="16" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="26.0" horizontalTextPosition="center" iconTextGap="4" modelName="internal" modelPosition="c" textColor="#000000" verticalTextPosition="bottom" visible="true" width="80.0" x="0.0" xml:space="preserve" y="0.0">Shape2</y:NodeLabel>
<y:Shape type="rectangle"/>
</y:ShapeNode>
</data>
</node>
<node id="n1" yfiles.foldertype="group">
<data key="d5">
<y:ProxyAutoBoundsNode>
<y:Realizers active="0">
<y:GroupNode>
<y:Geometry height="12.0" width="70.0" x="0.0" y="0.0"/>
<y:Fill color="#F5F5F5" transparent="false"/>
<y:BorderStyle color="#000000" type="dashed" width="1.0"/>
<y:NodeLabel alignment="right" autoSizePolicy="content" backgroundColor="#EBEBEB" borderDistance="0.0" fontFamily="Dialog" fontSize="10" fontStyle="plain" hasLineColor="false" height="12.0" horizontalTextPosition="center" iconTextGap="4" modelName="sandwich" modelPosition="n" textColor="#000000" verticalTextPosition="bottom" width="70.0" x="0" xml:space="preserve" y="0">Group1</y:NodeLabel>
<y:Shape type="roundrectangle"/>
<y:State closed="false" closedHeight="80.0" closedWidth="100.0" innerGraphDisplayEnabled="false"/>
<y:Insets bottom="15" bottomF="15.0" left="15" leftF="15.0" right="15" rightF="15.0" top="15" topF="15.0"/>
<y:BorderInsets bottom="54" bottomF="54.0" left="0" leftF="0.0" right="23" rightF="23.35" top="0" topF="0.0"/>
</y:GroupNode>
<y:GroupNode>
<y:Geometry height="12.0" width="70.0" x="0.0" y="0.0"/>
<y:Fill color="#F5F5F5" transparent="false"/>
<y:BorderStyle color="#000000" type="dashed" width="1.0"/>
<y:NodeLabel alignment="right" autoSizePolicy="content" backgroundColor="#EBEBEB" borderDistance="0.0" fontFamily="Dialog" fontSize="10" fontStyle="plain" hasLineColor="false" hasText="false" height="12.0" horizontalTextPosition="center" iconTextGap="4" modelName="sandwich" modelPosition="n" textColor="#000000" verticalTextPosition="bottom" width="70.0" x="0" y="0"/>
<y:Shape type="roundrectangle"/>
<y:State closed="true" closedHeight="80.0" closedWidth="100.0" innerGraphDisplayEnabled="false"/>
<y:Insets bottom="15" bottomF="15.0" left="15" leftF="15.0" right="15" rightF="15.0" top="15" topF="15.0"/>
<y:BorderInsets bottom="54" bottomF="54.0" left="0" leftF="0.0" right="23" rightF="23.35" top="0" topF="0.0"/>
</y:GroupNode>
</y:Realizers>
</y:ProxyAutoBoundsNode>
</data>
<graph edgedefault="directed" id="n1:">
<node id="n1::n0">
<data key="d5">
<y:ShapeNode>
<y:Geometry height="26.0" width="80.0" x="0.0" y="0.0"/>
<y:Fill color="#FFFFFF" transparent="false"/>
<y:BorderStyle color="#000000" type="line" width="1.0"/>
<y:NodeLabel alignment="center" autoSizePolicy="content" fontFamily="Dialog" fontSize="16" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="26.0" horizontalTextPosition="center" iconTextGap="4" modelName="internal" modelPosition="c" textColor="#000000" verticalTextPosition="bottom" visible="true" width="80.0" x="0.0" xml:space="preserve" y="0.0">Shape1</y:NodeLabel>
<y:Shape type="rectangle"/>
</y:ShapeNode>
</data>
</node>
</graph>
</node>
<edge id="e2" source="n1::n0" target="n0">
<data key="d8" xml:space="preserve"><![CDATA[descr]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="0.0" tx="0.0" ty="0.0"/>
<y:LineStyle color="#000000" type="line" width="1.0"/>
<y:Arrows source="standard" target="standard"/>
<y:EdgeLabel alignment="center" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="17.96875" horizontalTextPosition="center" iconTextGap="4" modelName="centered" modelPosition="head" preferredPlacement="anywhere" ratio="0.5" textColor="#000000" verticalTextPosition="bottom" visible="true" width="41.8" x="71.5" xml:space="preserve" y="0.5" bottomInset="0" leftInset="0" rightInset="0" topInset="0">edge1
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/>
</y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
<edge id="e3" source="n0" target="n1::n0">
<data key="d8" xml:space="preserve"><![CDATA[descr2]]></data>
<data key="d9">
<y:PolyLineEdge>
<y:Path sx="0.0" sy="0.0" tx="0.0" ty="0.0"/>
<y:LineStyle color="#0000FF" type="line" width="1.0"/>
<y:Arrows source="none" target="standard"/>
<y:EdgeLabel alignment="center" configuration="AutoFlippingLabel" distance="0.0" fontFamily="Dialog" fontSize="8" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="17.96875" horizontalTextPosition="center" iconTextGap="4" modelName="centered" modelPosition="head" preferredPlacement="anywhere" ratio="0.5" textColor="#0000FF" verticalTextPosition="bottom" visible="true" width="41.8" x="71.5" xml:space="preserve" y="0.5" bottomInset="0" leftInset="0" rightInset="0" topInset="0">edge2
<y:PreferredPlacementDescriptor angle="0.0" angleOffsetOnRightSide="0" angleReference="absolute" angleRotationOnRightSide="co" distance="-1.0" frozen="true" placement="anywhere" side="anywhere" sideReference="relative_to_edge_flow"/>
</y:EdgeLabel>
<y:BendStyle smoothed="false"/>
</y:PolyLineEdge>
</data>
</edge>
</graph>
</graphml>

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns" xmlns:java="http://www.yworks.com/xml/yfiles-common/1.0/java" xmlns:sys="http://www.yworks.com/xml/yfiles-common/markup/primitives/2.0" xmlns:x="http://www.yworks.com/xml/yfiles-common/markup/2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:y="http://www.yworks.com/xml/graphml" xmlns:yed="http://www.yworks.com/xml/yed/3" xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://www.yworks.com/xml/schema/graphml/1.1/ygraphml.xsd">
<!--Created by yEd 3.21.1-->
<key for="port" id="d0" yfiles.type="portgraphics"/>
<key for="port" id="d1" yfiles.type="portgeometry"/>
<key for="port" id="d2" yfiles.type="portuserdata"/>
<key attr.name="url" attr.type="string" for="node" id="d3"/>
<key attr.name="description" attr.type="string" for="node" id="d4"/>
<key for="node" id="d5" yfiles.type="nodegraphics"/>
<key for="graphml" id="d6" yfiles.type="resources"/>
<key attr.name="url" attr.type="string" for="edge" id="d7"/>
<key attr.name="description" attr.type="string" for="edge" id="d8"/>
<key for="edge" id="d9" yfiles.type="edgegraphics"/>
<graph edgedefault="directed" id="G">
<node id="n0">
<data key="d5">
<y:ShapeNode>
<y:Geometry height="12.0" width="60.0" x="276.0" y="45.0"/>
<y:Fill color="#FFFFFF" transparent="false"/>
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Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# filippo.io/edwards25519
```
import "filippo.io/edwards25519"
```
This library implements the edwards25519 elliptic curve, exposing the necessary APIs to build a wide array of higher-level primitives.
Read the docs at [pkg.go.dev/filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519).
The code is originally derived from Adam Langley's internal implementation in the Go standard library, and includes George Tankersley's [performance improvements](https://golang.org/cl/71950). It was then further developed by Henry de Valence for use in ristretto255, and was finally [merged back into the Go standard library](https://golang.org/cl/276272) as of Go 1.17. It now tracks the upstream codebase and extends it with additional functionality.
Most users don't need this package, and should instead use `crypto/ed25519` for signatures, `golang.org/x/crypto/curve25519` for Diffie-Hellman, or `github.com/gtank/ristretto255` for prime order group logic. However, for anyone currently using a fork of `crypto/ed25519/internal/edwards25519` or `github.com/agl/edwards25519`, this package should be a safer, faster, and more powerful alternative.
Since this package is meant to curb proliferation of edwards25519 implementations in the Go ecosystem, it welcomes requests for new APIs or reviewable performance improvements.

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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package edwards25519 implements group logic for the twisted Edwards curve
//
// -x^2 + y^2 = 1 + -(121665/121666)*x^2*y^2
//
// This is better known as the Edwards curve equivalent to Curve25519, and is
// the curve used by the Ed25519 signature scheme.
//
// Most users don't need this package, and should instead use crypto/ed25519 for
// signatures, golang.org/x/crypto/curve25519 for Diffie-Hellman, or
// github.com/gtank/ristretto255 for prime order group logic.
//
// However, developers who do need to interact with low-level edwards25519
// operations can use this package, which is an extended version of
// crypto/ed25519/internal/edwards25519 from the standard library repackaged as
// an importable module.
package edwards25519

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// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"errors"
"filippo.io/edwards25519/field"
)
// Point types.
type projP1xP1 struct {
X, Y, Z, T field.Element
}
type projP2 struct {
X, Y, Z field.Element
}
// Point represents a point on the edwards25519 curve.
//
// This type works similarly to math/big.Int, and all arguments and receivers
// are allowed to alias.
//
// The zero value is NOT valid, and it may be used only as a receiver.
type Point struct {
// The point is internally represented in extended coordinates (X, Y, Z, T)
// where x = X/Z, y = Y/Z, and xy = T/Z per https://eprint.iacr.org/2008/522.
x, y, z, t field.Element
// Make the type not comparable (i.e. used with == or as a map key), as
// equivalent points can be represented by different Go values.
_ incomparable
}
type incomparable [0]func()
func checkInitialized(points ...*Point) {
for _, p := range points {
if p.x == (field.Element{}) && p.y == (field.Element{}) {
panic("edwards25519: use of uninitialized Point")
}
}
}
type projCached struct {
YplusX, YminusX, Z, T2d field.Element
}
type affineCached struct {
YplusX, YminusX, T2d field.Element
}
// Constructors.
func (v *projP2) Zero() *projP2 {
v.X.Zero()
v.Y.One()
v.Z.One()
return v
}
// identity is the point at infinity.
var identity, _ = new(Point).SetBytes([]byte{
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
// NewIdentityPoint returns a new Point set to the identity.
func NewIdentityPoint() *Point {
return new(Point).Set(identity)
}
// generator is the canonical curve basepoint. See TestGenerator for the
// correspondence of this encoding with the values in RFC 8032.
var generator, _ = new(Point).SetBytes([]byte{
0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66})
// NewGeneratorPoint returns a new Point set to the canonical generator.
func NewGeneratorPoint() *Point {
return new(Point).Set(generator)
}
func (v *projCached) Zero() *projCached {
v.YplusX.One()
v.YminusX.One()
v.Z.One()
v.T2d.Zero()
return v
}
func (v *affineCached) Zero() *affineCached {
v.YplusX.One()
v.YminusX.One()
v.T2d.Zero()
return v
}
// Assignments.
// Set sets v = u, and returns v.
func (v *Point) Set(u *Point) *Point {
*v = *u
return v
}
// Encoding.
// Bytes returns the canonical 32-byte encoding of v, according to RFC 8032,
// Section 5.1.2.
func (v *Point) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var buf [32]byte
return v.bytes(&buf)
}
func (v *Point) bytes(buf *[32]byte) []byte {
checkInitialized(v)
var zInv, x, y field.Element
zInv.Invert(&v.z) // zInv = 1 / Z
x.Multiply(&v.x, &zInv) // x = X / Z
y.Multiply(&v.y, &zInv) // y = Y / Z
out := copyFieldElement(buf, &y)
out[31] |= byte(x.IsNegative() << 7)
return out
}
var feOne = new(field.Element).One()
// SetBytes sets v = x, where x is a 32-byte encoding of v. If x does not
// represent a valid point on the curve, SetBytes returns nil and an error and
// the receiver is unchanged. Otherwise, SetBytes returns v.
//
// Note that SetBytes accepts all non-canonical encodings of valid points.
// That is, it follows decoding rules that match most implementations in
// the ecosystem rather than RFC 8032.
func (v *Point) SetBytes(x []byte) (*Point, error) {
// Specifically, the non-canonical encodings that are accepted are
// 1) the ones where the field element is not reduced (see the
// (*field.Element).SetBytes docs) and
// 2) the ones where the x-coordinate is zero and the sign bit is set.
//
// This is consistent with crypto/ed25519/internal/edwards25519. Read more
// at https://hdevalence.ca/blog/2020-10-04-its-25519am, specifically the
// "Canonical A, R" section.
y, err := new(field.Element).SetBytes(x)
if err != nil {
return nil, errors.New("edwards25519: invalid point encoding length")
}
// -x² + y² = 1 + dx²y²
// x² + dx²y² = x²(dy² + 1) = y² - 1
// x² = (y² - 1) / (dy² + 1)
// u = y² - 1
y2 := new(field.Element).Square(y)
u := new(field.Element).Subtract(y2, feOne)
// v = dy² + 1
vv := new(field.Element).Multiply(y2, d)
vv = vv.Add(vv, feOne)
// x = +√(u/v)
xx, wasSquare := new(field.Element).SqrtRatio(u, vv)
if wasSquare == 0 {
return nil, errors.New("edwards25519: invalid point encoding")
}
// Select the negative square root if the sign bit is set.
xxNeg := new(field.Element).Negate(xx)
xx = xx.Select(xxNeg, xx, int(x[31]>>7))
v.x.Set(xx)
v.y.Set(y)
v.z.One()
v.t.Multiply(xx, y) // xy = T / Z
return v, nil
}
func copyFieldElement(buf *[32]byte, v *field.Element) []byte {
copy(buf[:], v.Bytes())
return buf[:]
}
// Conversions.
func (v *projP2) FromP1xP1(p *projP1xP1) *projP2 {
v.X.Multiply(&p.X, &p.T)
v.Y.Multiply(&p.Y, &p.Z)
v.Z.Multiply(&p.Z, &p.T)
return v
}
func (v *projP2) FromP3(p *Point) *projP2 {
v.X.Set(&p.x)
v.Y.Set(&p.y)
v.Z.Set(&p.z)
return v
}
func (v *Point) fromP1xP1(p *projP1xP1) *Point {
v.x.Multiply(&p.X, &p.T)
v.y.Multiply(&p.Y, &p.Z)
v.z.Multiply(&p.Z, &p.T)
v.t.Multiply(&p.X, &p.Y)
return v
}
func (v *Point) fromP2(p *projP2) *Point {
v.x.Multiply(&p.X, &p.Z)
v.y.Multiply(&p.Y, &p.Z)
v.z.Square(&p.Z)
v.t.Multiply(&p.X, &p.Y)
return v
}
// d is a constant in the curve equation.
var d, _ = new(field.Element).SetBytes([]byte{
0xa3, 0x78, 0x59, 0x13, 0xca, 0x4d, 0xeb, 0x75,
0xab, 0xd8, 0x41, 0x41, 0x4d, 0x0a, 0x70, 0x00,
0x98, 0xe8, 0x79, 0x77, 0x79, 0x40, 0xc7, 0x8c,
0x73, 0xfe, 0x6f, 0x2b, 0xee, 0x6c, 0x03, 0x52})
var d2 = new(field.Element).Add(d, d)
func (v *projCached) FromP3(p *Point) *projCached {
v.YplusX.Add(&p.y, &p.x)
v.YminusX.Subtract(&p.y, &p.x)
v.Z.Set(&p.z)
v.T2d.Multiply(&p.t, d2)
return v
}
func (v *affineCached) FromP3(p *Point) *affineCached {
v.YplusX.Add(&p.y, &p.x)
v.YminusX.Subtract(&p.y, &p.x)
v.T2d.Multiply(&p.t, d2)
var invZ field.Element
invZ.Invert(&p.z)
v.YplusX.Multiply(&v.YplusX, &invZ)
v.YminusX.Multiply(&v.YminusX, &invZ)
v.T2d.Multiply(&v.T2d, &invZ)
return v
}
// (Re)addition and subtraction.
// Add sets v = p + q, and returns v.
func (v *Point) Add(p, q *Point) *Point {
checkInitialized(p, q)
qCached := new(projCached).FromP3(q)
result := new(projP1xP1).Add(p, qCached)
return v.fromP1xP1(result)
}
// Subtract sets v = p - q, and returns v.
func (v *Point) Subtract(p, q *Point) *Point {
checkInitialized(p, q)
qCached := new(projCached).FromP3(q)
result := new(projP1xP1).Sub(p, qCached)
return v.fromP1xP1(result)
}
func (v *projP1xP1) Add(p *Point, q *projCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YplusX)
MM.Multiply(&YminusX, &q.YminusX)
TT2d.Multiply(&p.t, &q.T2d)
ZZ2.Multiply(&p.z, &q.Z)
ZZ2.Add(&ZZ2, &ZZ2)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Add(&ZZ2, &TT2d)
v.T.Subtract(&ZZ2, &TT2d)
return v
}
func (v *projP1xP1) Sub(p *Point, q *projCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YminusX) // flipped sign
MM.Multiply(&YminusX, &q.YplusX) // flipped sign
TT2d.Multiply(&p.t, &q.T2d)
ZZ2.Multiply(&p.z, &q.Z)
ZZ2.Add(&ZZ2, &ZZ2)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Subtract(&ZZ2, &TT2d) // flipped sign
v.T.Add(&ZZ2, &TT2d) // flipped sign
return v
}
func (v *projP1xP1) AddAffine(p *Point, q *affineCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YplusX)
MM.Multiply(&YminusX, &q.YminusX)
TT2d.Multiply(&p.t, &q.T2d)
Z2.Add(&p.z, &p.z)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Add(&Z2, &TT2d)
v.T.Subtract(&Z2, &TT2d)
return v
}
func (v *projP1xP1) SubAffine(p *Point, q *affineCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YminusX) // flipped sign
MM.Multiply(&YminusX, &q.YplusX) // flipped sign
TT2d.Multiply(&p.t, &q.T2d)
Z2.Add(&p.z, &p.z)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Subtract(&Z2, &TT2d) // flipped sign
v.T.Add(&Z2, &TT2d) // flipped sign
return v
}
// Doubling.
func (v *projP1xP1) Double(p *projP2) *projP1xP1 {
var XX, YY, ZZ2, XplusYsq field.Element
XX.Square(&p.X)
YY.Square(&p.Y)
ZZ2.Square(&p.Z)
ZZ2.Add(&ZZ2, &ZZ2)
XplusYsq.Add(&p.X, &p.Y)
XplusYsq.Square(&XplusYsq)
v.Y.Add(&YY, &XX)
v.Z.Subtract(&YY, &XX)
v.X.Subtract(&XplusYsq, &v.Y)
v.T.Subtract(&ZZ2, &v.Z)
return v
}
// Negation.
// Negate sets v = -p, and returns v.
func (v *Point) Negate(p *Point) *Point {
checkInitialized(p)
v.x.Negate(&p.x)
v.y.Set(&p.y)
v.z.Set(&p.z)
v.t.Negate(&p.t)
return v
}
// Equal returns 1 if v is equivalent to u, and 0 otherwise.
func (v *Point) Equal(u *Point) int {
checkInitialized(v, u)
var t1, t2, t3, t4 field.Element
t1.Multiply(&v.x, &u.z)
t2.Multiply(&u.x, &v.z)
t3.Multiply(&v.y, &u.z)
t4.Multiply(&u.y, &v.z)
return t1.Equal(&t2) & t3.Equal(&t4)
}
// Constant-time operations
// Select sets v to a if cond == 1 and to b if cond == 0.
func (v *projCached) Select(a, b *projCached, cond int) *projCached {
v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
v.Z.Select(&a.Z, &b.Z, cond)
v.T2d.Select(&a.T2d, &b.T2d, cond)
return v
}
// Select sets v to a if cond == 1 and to b if cond == 0.
func (v *affineCached) Select(a, b *affineCached, cond int) *affineCached {
v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
v.T2d.Select(&a.T2d, &b.T2d, cond)
return v
}
// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
func (v *projCached) CondNeg(cond int) *projCached {
v.YplusX.Swap(&v.YminusX, cond)
v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
return v
}
// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
func (v *affineCached) CondNeg(cond int) *affineCached {
v.YplusX.Swap(&v.YminusX, cond)
v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
return v
}

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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
// This file contains additional functionality that is not included in the
// upstream crypto/ed25519/internal/edwards25519 package.
import (
"errors"
"filippo.io/edwards25519/field"
)
// ExtendedCoordinates returns v in extended coordinates (X:Y:Z:T) where
// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
func (v *Point) ExtendedCoordinates() (X, Y, Z, T *field.Element) {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap. Don't change the style without making
// sure it doesn't increase the inliner cost.
var e [4]field.Element
X, Y, Z, T = v.extendedCoordinates(&e)
return
}
func (v *Point) extendedCoordinates(e *[4]field.Element) (X, Y, Z, T *field.Element) {
checkInitialized(v)
X = e[0].Set(&v.x)
Y = e[1].Set(&v.y)
Z = e[2].Set(&v.z)
T = e[3].Set(&v.t)
return
}
// SetExtendedCoordinates sets v = (X:Y:Z:T) in extended coordinates where
// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
//
// If the coordinates are invalid or don't represent a valid point on the curve,
// SetExtendedCoordinates returns nil and an error and the receiver is
// unchanged. Otherwise, SetExtendedCoordinates returns v.
func (v *Point) SetExtendedCoordinates(X, Y, Z, T *field.Element) (*Point, error) {
if !isOnCurve(X, Y, Z, T) {
return nil, errors.New("edwards25519: invalid point coordinates")
}
v.x.Set(X)
v.y.Set(Y)
v.z.Set(Z)
v.t.Set(T)
return v, nil
}
func isOnCurve(X, Y, Z, T *field.Element) bool {
var lhs, rhs field.Element
XX := new(field.Element).Square(X)
YY := new(field.Element).Square(Y)
ZZ := new(field.Element).Square(Z)
TT := new(field.Element).Square(T)
// -x² + y² = 1 + dx²y²
// -(X/Z)² + (Y/Z)² = 1 + d(T/Z)²
// -X² + Y² = Z² + dT²
lhs.Subtract(YY, XX)
rhs.Multiply(d, TT).Add(&rhs, ZZ)
if lhs.Equal(&rhs) != 1 {
return false
}
// xy = T/Z
// XY/Z² = T/Z
// XY = TZ
lhs.Multiply(X, Y)
rhs.Multiply(T, Z)
return lhs.Equal(&rhs) == 1
}
// BytesMontgomery converts v to a point on the birationally-equivalent
// Curve25519 Montgomery curve, and returns its canonical 32 bytes encoding
// according to RFC 7748.
//
// Note that BytesMontgomery only encodes the u-coordinate, so v and -v encode
// to the same value. If v is the identity point, BytesMontgomery returns 32
// zero bytes, analogously to the X25519 function.
func (v *Point) BytesMontgomery() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var buf [32]byte
return v.bytesMontgomery(&buf)
}
func (v *Point) bytesMontgomery(buf *[32]byte) []byte {
checkInitialized(v)
// RFC 7748, Section 4.1 provides the bilinear map to calculate the
// Montgomery u-coordinate
//
// u = (1 + y) / (1 - y)
//
// where y = Y / Z.
var y, recip, u field.Element
y.Multiply(&v.y, y.Invert(&v.z)) // y = Y / Z
recip.Invert(recip.Subtract(feOne, &y)) // r = 1/(1 - y)
u.Multiply(u.Add(feOne, &y), &recip) // u = (1 + y)*r
return copyFieldElement(buf, &u)
}
// MultByCofactor sets v = 8 * p, and returns v.
func (v *Point) MultByCofactor(p *Point) *Point {
checkInitialized(p)
result := projP1xP1{}
pp := (&projP2{}).FromP3(p)
result.Double(pp)
pp.FromP1xP1(&result)
result.Double(pp)
pp.FromP1xP1(&result)
result.Double(pp)
return v.fromP1xP1(&result)
}
// Given k > 0, set s = s**(2*i).
func (s *Scalar) pow2k(k int) {
for i := 0; i < k; i++ {
s.Multiply(s, s)
}
}
// Invert sets s to the inverse of a nonzero scalar v, and returns s.
//
// If t is zero, Invert returns zero.
func (s *Scalar) Invert(t *Scalar) *Scalar {
// Uses a hardcoded sliding window of width 4.
var table [8]Scalar
var tt Scalar
tt.Multiply(t, t)
table[0] = *t
for i := 0; i < 7; i++ {
table[i+1].Multiply(&table[i], &tt)
}
// Now table = [t**1, t**3, t**7, t**11, t**13, t**15]
// so t**k = t[k/2] for odd k
// To compute the sliding window digits, use the following Sage script:
// sage: import itertools
// sage: def sliding_window(w,k):
// ....: digits = []
// ....: while k > 0:
// ....: if k % 2 == 1:
// ....: kmod = k % (2**w)
// ....: digits.append(kmod)
// ....: k = k - kmod
// ....: else:
// ....: digits.append(0)
// ....: k = k // 2
// ....: return digits
// Now we can compute s roughly as follows:
// sage: s = 1
// sage: for coeff in reversed(sliding_window(4,l-2)):
// ....: s = s*s
// ....: if coeff > 0 :
// ....: s = s*t**coeff
// This works on one bit at a time, with many runs of zeros.
// The digits can be collapsed into [(count, coeff)] as follows:
// sage: [(len(list(group)),d) for d,group in itertools.groupby(sliding_window(4,l-2))]
// Entries of the form (k, 0) turn into pow2k(k)
// Entries of the form (1, coeff) turn into a squaring and then a table lookup.
// We can fold the squaring into the previous pow2k(k) as pow2k(k+1).
*s = table[1/2]
s.pow2k(127 + 1)
s.Multiply(s, &table[1/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[13/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[5/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[1/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(5 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(9 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[13/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[11/2])
return s
}
// MultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
//
// Execution time depends only on the lengths of the two slices, which must match.
func (v *Point) MultiScalarMult(scalars []*Scalar, points []*Point) *Point {
if len(scalars) != len(points) {
panic("edwards25519: called MultiScalarMult with different size inputs")
}
checkInitialized(points...)
// Proceed as in the single-base case, but share doublings
// between each point in the multiscalar equation.
// Build lookup tables for each point
tables := make([]projLookupTable, len(points))
for i := range tables {
tables[i].FromP3(points[i])
}
// Compute signed radix-16 digits for each scalar
digits := make([][64]int8, len(scalars))
for i := range digits {
digits[i] = scalars[i].signedRadix16()
}
// Unwrap first loop iteration to save computing 16*identity
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
// Lookup-and-add the appropriate multiple of each input point
for j := range tables {
tables[j].SelectInto(multiple, digits[j][63])
tmp1.Add(v, multiple) // tmp1 = v + x_(j,63)*Q in P1xP1 coords
v.fromP1xP1(tmp1) // update v
}
tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
for i := 62; i >= 0; i-- {
tmp1.Double(tmp2) // tmp1 = 2*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*(prev) in P1xP1 coords
v.fromP1xP1(tmp1) // v = 16*(prev) in P3 coords
// Lookup-and-add the appropriate multiple of each input point
for j := range tables {
tables[j].SelectInto(multiple, digits[j][i])
tmp1.Add(v, multiple) // tmp1 = v + x_(j,i)*Q in P1xP1 coords
v.fromP1xP1(tmp1) // update v
}
tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
}
return v
}
// VarTimeMultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
//
// Execution time depends on the inputs.
func (v *Point) VarTimeMultiScalarMult(scalars []*Scalar, points []*Point) *Point {
if len(scalars) != len(points) {
panic("edwards25519: called VarTimeMultiScalarMult with different size inputs")
}
checkInitialized(points...)
// Generalize double-base NAF computation to arbitrary sizes.
// Here all the points are dynamic, so we only use the smaller
// tables.
// Build lookup tables for each point
tables := make([]nafLookupTable5, len(points))
for i := range tables {
tables[i].FromP3(points[i])
}
// Compute a NAF for each scalar
nafs := make([][256]int8, len(scalars))
for i := range nafs {
nafs[i] = scalars[i].nonAdjacentForm(5)
}
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
tmp2.Zero()
// Move from high to low bits, doubling the accumulator
// at each iteration and checking whether there is a nonzero
// coefficient to look up a multiple of.
//
// Skip trying to find the first nonzero coefficent, because
// searching might be more work than a few extra doublings.
for i := 255; i >= 0; i-- {
tmp1.Double(tmp2)
for j := range nafs {
if nafs[j][i] > 0 {
v.fromP1xP1(tmp1)
tables[j].SelectInto(multiple, nafs[j][i])
tmp1.Add(v, multiple)
} else if nafs[j][i] < 0 {
v.fromP1xP1(tmp1)
tables[j].SelectInto(multiple, -nafs[j][i])
tmp1.Sub(v, multiple)
}
}
tmp2.FromP1xP1(tmp1)
}
v.fromP2(tmp2)
return v
}

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// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package field implements fast arithmetic modulo 2^255-19.
package field
import (
"crypto/subtle"
"encoding/binary"
"errors"
"math/bits"
)
// Element represents an element of the field GF(2^255-19). Note that this
// is not a cryptographically secure group, and should only be used to interact
// with edwards25519.Point coordinates.
//
// This type works similarly to math/big.Int, and all arguments and receivers
// are allowed to alias.
//
// The zero value is a valid zero element.
type Element struct {
// An element t represents the integer
// t.l0 + t.l1*2^51 + t.l2*2^102 + t.l3*2^153 + t.l4*2^204
//
// Between operations, all limbs are expected to be lower than 2^52.
l0 uint64
l1 uint64
l2 uint64
l3 uint64
l4 uint64
}
const maskLow51Bits uint64 = (1 << 51) - 1
var feZero = &Element{0, 0, 0, 0, 0}
// Zero sets v = 0, and returns v.
func (v *Element) Zero() *Element {
*v = *feZero
return v
}
var feOne = &Element{1, 0, 0, 0, 0}
// One sets v = 1, and returns v.
func (v *Element) One() *Element {
*v = *feOne
return v
}
// reduce reduces v modulo 2^255 - 19 and returns it.
func (v *Element) reduce() *Element {
v.carryPropagate()
// After the light reduction we now have a field element representation
// v < 2^255 + 2^13 * 19, but need v < 2^255 - 19.
// If v >= 2^255 - 19, then v + 19 >= 2^255, which would overflow 2^255 - 1,
// generating a carry. That is, c will be 0 if v < 2^255 - 19, and 1 otherwise.
c := (v.l0 + 19) >> 51
c = (v.l1 + c) >> 51
c = (v.l2 + c) >> 51
c = (v.l3 + c) >> 51
c = (v.l4 + c) >> 51
// If v < 2^255 - 19 and c = 0, this will be a no-op. Otherwise, it's
// effectively applying the reduction identity to the carry.
v.l0 += 19 * c
v.l1 += v.l0 >> 51
v.l0 = v.l0 & maskLow51Bits
v.l2 += v.l1 >> 51
v.l1 = v.l1 & maskLow51Bits
v.l3 += v.l2 >> 51
v.l2 = v.l2 & maskLow51Bits
v.l4 += v.l3 >> 51
v.l3 = v.l3 & maskLow51Bits
// no additional carry
v.l4 = v.l4 & maskLow51Bits
return v
}
// Add sets v = a + b, and returns v.
func (v *Element) Add(a, b *Element) *Element {
v.l0 = a.l0 + b.l0
v.l1 = a.l1 + b.l1
v.l2 = a.l2 + b.l2
v.l3 = a.l3 + b.l3
v.l4 = a.l4 + b.l4
// Using the generic implementation here is actually faster than the
// assembly. Probably because the body of this function is so simple that
// the compiler can figure out better optimizations by inlining the carry
// propagation.
return v.carryPropagateGeneric()
}
// Subtract sets v = a - b, and returns v.
func (v *Element) Subtract(a, b *Element) *Element {
// We first add 2 * p, to guarantee the subtraction won't underflow, and
// then subtract b (which can be up to 2^255 + 2^13 * 19).
v.l0 = (a.l0 + 0xFFFFFFFFFFFDA) - b.l0
v.l1 = (a.l1 + 0xFFFFFFFFFFFFE) - b.l1
v.l2 = (a.l2 + 0xFFFFFFFFFFFFE) - b.l2
v.l3 = (a.l3 + 0xFFFFFFFFFFFFE) - b.l3
v.l4 = (a.l4 + 0xFFFFFFFFFFFFE) - b.l4
return v.carryPropagate()
}
// Negate sets v = -a, and returns v.
func (v *Element) Negate(a *Element) *Element {
return v.Subtract(feZero, a)
}
// Invert sets v = 1/z mod p, and returns v.
//
// If z == 0, Invert returns v = 0.
func (v *Element) Invert(z *Element) *Element {
// Inversion is implemented as exponentiation with exponent p − 2. It uses the
// same sequence of 255 squarings and 11 multiplications as [Curve25519].
var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t Element
z2.Square(z) // 2
t.Square(&z2) // 4
t.Square(&t) // 8
z9.Multiply(&t, z) // 9
z11.Multiply(&z9, &z2) // 11
t.Square(&z11) // 22
z2_5_0.Multiply(&t, &z9) // 31 = 2^5 - 2^0
t.Square(&z2_5_0) // 2^6 - 2^1
for i := 0; i < 4; i++ {
t.Square(&t) // 2^10 - 2^5
}
z2_10_0.Multiply(&t, &z2_5_0) // 2^10 - 2^0
t.Square(&z2_10_0) // 2^11 - 2^1
for i := 0; i < 9; i++ {
t.Square(&t) // 2^20 - 2^10
}
z2_20_0.Multiply(&t, &z2_10_0) // 2^20 - 2^0
t.Square(&z2_20_0) // 2^21 - 2^1
for i := 0; i < 19; i++ {
t.Square(&t) // 2^40 - 2^20
}
t.Multiply(&t, &z2_20_0) // 2^40 - 2^0
t.Square(&t) // 2^41 - 2^1
for i := 0; i < 9; i++ {
t.Square(&t) // 2^50 - 2^10
}
z2_50_0.Multiply(&t, &z2_10_0) // 2^50 - 2^0
t.Square(&z2_50_0) // 2^51 - 2^1
for i := 0; i < 49; i++ {
t.Square(&t) // 2^100 - 2^50
}
z2_100_0.Multiply(&t, &z2_50_0) // 2^100 - 2^0
t.Square(&z2_100_0) // 2^101 - 2^1
for i := 0; i < 99; i++ {
t.Square(&t) // 2^200 - 2^100
}
t.Multiply(&t, &z2_100_0) // 2^200 - 2^0
t.Square(&t) // 2^201 - 2^1
for i := 0; i < 49; i++ {
t.Square(&t) // 2^250 - 2^50
}
t.Multiply(&t, &z2_50_0) // 2^250 - 2^0
t.Square(&t) // 2^251 - 2^1
t.Square(&t) // 2^252 - 2^2
t.Square(&t) // 2^253 - 2^3
t.Square(&t) // 2^254 - 2^4
t.Square(&t) // 2^255 - 2^5
return v.Multiply(&t, &z11) // 2^255 - 21
}
// Set sets v = a, and returns v.
func (v *Element) Set(a *Element) *Element {
*v = *a
return v
}
// SetBytes sets v to x, where x is a 32-byte little-endian encoding. If x is
// not of the right length, SetBytes returns nil and an error, and the
// receiver is unchanged.
//
// Consistent with RFC 7748, the most significant bit (the high bit of the
// last byte) is ignored, and non-canonical values (2^255-19 through 2^255-1)
// are accepted. Note that this is laxer than specified by RFC 8032, but
// consistent with most Ed25519 implementations.
func (v *Element) SetBytes(x []byte) (*Element, error) {
if len(x) != 32 {
return nil, errors.New("edwards25519: invalid field element input size")
}
// Bits 0:51 (bytes 0:8, bits 0:64, shift 0, mask 51).
v.l0 = binary.LittleEndian.Uint64(x[0:8])
v.l0 &= maskLow51Bits
// Bits 51:102 (bytes 6:14, bits 48:112, shift 3, mask 51).
v.l1 = binary.LittleEndian.Uint64(x[6:14]) >> 3
v.l1 &= maskLow51Bits
// Bits 102:153 (bytes 12:20, bits 96:160, shift 6, mask 51).
v.l2 = binary.LittleEndian.Uint64(x[12:20]) >> 6
v.l2 &= maskLow51Bits
// Bits 153:204 (bytes 19:27, bits 152:216, shift 1, mask 51).
v.l3 = binary.LittleEndian.Uint64(x[19:27]) >> 1
v.l3 &= maskLow51Bits
// Bits 204:255 (bytes 24:32, bits 192:256, shift 12, mask 51).
// Note: not bytes 25:33, shift 4, to avoid overread.
v.l4 = binary.LittleEndian.Uint64(x[24:32]) >> 12
v.l4 &= maskLow51Bits
return v, nil
}
// Bytes returns the canonical 32-byte little-endian encoding of v.
func (v *Element) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var out [32]byte
return v.bytes(&out)
}
func (v *Element) bytes(out *[32]byte) []byte {
t := *v
t.reduce()
var buf [8]byte
for i, l := range [5]uint64{t.l0, t.l1, t.l2, t.l3, t.l4} {
bitsOffset := i * 51
binary.LittleEndian.PutUint64(buf[:], l<<uint(bitsOffset%8))
for i, bb := range buf {
off := bitsOffset/8 + i
if off >= len(out) {
break
}
out[off] |= bb
}
}
return out[:]
}
// Equal returns 1 if v and u are equal, and 0 otherwise.
func (v *Element) Equal(u *Element) int {
sa, sv := u.Bytes(), v.Bytes()
return subtle.ConstantTimeCompare(sa, sv)
}
// mask64Bits returns 0xffffffff if cond is 1, and 0 otherwise.
func mask64Bits(cond int) uint64 { return ^(uint64(cond) - 1) }
// Select sets v to a if cond == 1, and to b if cond == 0.
func (v *Element) Select(a, b *Element, cond int) *Element {
m := mask64Bits(cond)
v.l0 = (m & a.l0) | (^m & b.l0)
v.l1 = (m & a.l1) | (^m & b.l1)
v.l2 = (m & a.l2) | (^m & b.l2)
v.l3 = (m & a.l3) | (^m & b.l3)
v.l4 = (m & a.l4) | (^m & b.l4)
return v
}
// Swap swaps v and u if cond == 1 or leaves them unchanged if cond == 0, and returns v.
func (v *Element) Swap(u *Element, cond int) {
m := mask64Bits(cond)
t := m & (v.l0 ^ u.l0)
v.l0 ^= t
u.l0 ^= t
t = m & (v.l1 ^ u.l1)
v.l1 ^= t
u.l1 ^= t
t = m & (v.l2 ^ u.l2)
v.l2 ^= t
u.l2 ^= t
t = m & (v.l3 ^ u.l3)
v.l3 ^= t
u.l3 ^= t
t = m & (v.l4 ^ u.l4)
v.l4 ^= t
u.l4 ^= t
}
// IsNegative returns 1 if v is negative, and 0 otherwise.
func (v *Element) IsNegative() int {
return int(v.Bytes()[0] & 1)
}
// Absolute sets v to |u|, and returns v.
func (v *Element) Absolute(u *Element) *Element {
return v.Select(new(Element).Negate(u), u, u.IsNegative())
}
// Multiply sets v = x * y, and returns v.
func (v *Element) Multiply(x, y *Element) *Element {
feMul(v, x, y)
return v
}
// Square sets v = x * x, and returns v.
func (v *Element) Square(x *Element) *Element {
feSquare(v, x)
return v
}
// Mult32 sets v = x * y, and returns v.
func (v *Element) Mult32(x *Element, y uint32) *Element {
x0lo, x0hi := mul51(x.l0, y)
x1lo, x1hi := mul51(x.l1, y)
x2lo, x2hi := mul51(x.l2, y)
x3lo, x3hi := mul51(x.l3, y)
x4lo, x4hi := mul51(x.l4, y)
v.l0 = x0lo + 19*x4hi // carried over per the reduction identity
v.l1 = x1lo + x0hi
v.l2 = x2lo + x1hi
v.l3 = x3lo + x2hi
v.l4 = x4lo + x3hi
// The hi portions are going to be only 32 bits, plus any previous excess,
// so we can skip the carry propagation.
return v
}
// mul51 returns lo + hi * 2⁵¹ = a * b.
func mul51(a uint64, b uint32) (lo uint64, hi uint64) {
mh, ml := bits.Mul64(a, uint64(b))
lo = ml & maskLow51Bits
hi = (mh << 13) | (ml >> 51)
return
}
// Pow22523 set v = x^((p-5)/8), and returns v. (p-5)/8 is 2^252-3.
func (v *Element) Pow22523(x *Element) *Element {
var t0, t1, t2 Element
t0.Square(x) // x^2
t1.Square(&t0) // x^4
t1.Square(&t1) // x^8
t1.Multiply(x, &t1) // x^9
t0.Multiply(&t0, &t1) // x^11
t0.Square(&t0) // x^22
t0.Multiply(&t1, &t0) // x^31
t1.Square(&t0) // x^62
for i := 1; i < 5; i++ { // x^992
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // x^1023 -> 1023 = 2^10 - 1
t1.Square(&t0) // 2^11 - 2
for i := 1; i < 10; i++ { // 2^20 - 2^10
t1.Square(&t1)
}
t1.Multiply(&t1, &t0) // 2^20 - 1
t2.Square(&t1) // 2^21 - 2
for i := 1; i < 20; i++ { // 2^40 - 2^20
t2.Square(&t2)
}
t1.Multiply(&t2, &t1) // 2^40 - 1
t1.Square(&t1) // 2^41 - 2
for i := 1; i < 10; i++ { // 2^50 - 2^10
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // 2^50 - 1
t1.Square(&t0) // 2^51 - 2
for i := 1; i < 50; i++ { // 2^100 - 2^50
t1.Square(&t1)
}
t1.Multiply(&t1, &t0) // 2^100 - 1
t2.Square(&t1) // 2^101 - 2
for i := 1; i < 100; i++ { // 2^200 - 2^100
t2.Square(&t2)
}
t1.Multiply(&t2, &t1) // 2^200 - 1
t1.Square(&t1) // 2^201 - 2
for i := 1; i < 50; i++ { // 2^250 - 2^50
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // 2^250 - 1
t0.Square(&t0) // 2^251 - 2
t0.Square(&t0) // 2^252 - 4
return v.Multiply(&t0, x) // 2^252 - 3 -> x^(2^252-3)
}
// sqrtM1 is 2^((p-1)/4), which squared is equal to -1 by Euler's Criterion.
var sqrtM1 = &Element{1718705420411056, 234908883556509,
2233514472574048, 2117202627021982, 765476049583133}
// SqrtRatio sets r to the non-negative square root of the ratio of u and v.
//
// If u/v is square, SqrtRatio returns r and 1. If u/v is not square, SqrtRatio
// sets r according to Section 4.3 of draft-irtf-cfrg-ristretto255-decaf448-00,
// and returns r and 0.
func (r *Element) SqrtRatio(u, v *Element) (R *Element, wasSquare int) {
t0 := new(Element)
// r = (u * v3) * (u * v7)^((p-5)/8)
v2 := new(Element).Square(v)
uv3 := new(Element).Multiply(u, t0.Multiply(v2, v))
uv7 := new(Element).Multiply(uv3, t0.Square(v2))
rr := new(Element).Multiply(uv3, t0.Pow22523(uv7))
check := new(Element).Multiply(v, t0.Square(rr)) // check = v * r^2
uNeg := new(Element).Negate(u)
correctSignSqrt := check.Equal(u)
flippedSignSqrt := check.Equal(uNeg)
flippedSignSqrtI := check.Equal(t0.Multiply(uNeg, sqrtM1))
rPrime := new(Element).Multiply(rr, sqrtM1) // r_prime = SQRT_M1 * r
// r = CT_SELECT(r_prime IF flipped_sign_sqrt | flipped_sign_sqrt_i ELSE r)
rr.Select(rPrime, rr, flippedSignSqrt|flippedSignSqrtI)
r.Absolute(rr) // Choose the nonnegative square root.
return r, correctSignSqrt | flippedSignSqrt
}

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vendor/filippo.io/edwards25519/field/fe_amd64.go generated vendored Normal file
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// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
// +build amd64,gc,!purego
package field
// feMul sets out = a * b. It works like feMulGeneric.
//go:noescape
func feMul(out *Element, a *Element, b *Element)
// feSquare sets out = a * a. It works like feSquareGeneric.
//go:noescape
func feSquare(out *Element, a *Element)

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// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
// +build amd64,gc,!purego
#include "textflag.h"
// func feMul(out *Element, a *Element, b *Element)
TEXT ·feMul(SB), NOSPLIT, $0-24
MOVQ a+8(FP), CX
MOVQ b+16(FP), BX
// r0 = a0×b0
MOVQ (CX), AX
MULQ (BX)
MOVQ AX, DI
MOVQ DX, SI
// r0 += 19×a1×b4
MOVQ 8(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a2×b3
MOVQ 16(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a3×b2
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 16(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a4×b1
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 8(BX)
ADDQ AX, DI
ADCQ DX, SI
// r1 = a0×b1
MOVQ (CX), AX
MULQ 8(BX)
MOVQ AX, R9
MOVQ DX, R8
// r1 += a1×b0
MOVQ 8(CX), AX
MULQ (BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a2×b4
MOVQ 16(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a3×b3
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a4×b2
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 16(BX)
ADDQ AX, R9
ADCQ DX, R8
// r2 = a0×b2
MOVQ (CX), AX
MULQ 16(BX)
MOVQ AX, R11
MOVQ DX, R10
// r2 += a1×b1
MOVQ 8(CX), AX
MULQ 8(BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += a2×b0
MOVQ 16(CX), AX
MULQ (BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += 19×a3×b4
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += 19×a4×b3
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, R11
ADCQ DX, R10
// r3 = a0×b3
MOVQ (CX), AX
MULQ 24(BX)
MOVQ AX, R13
MOVQ DX, R12
// r3 += a1×b2
MOVQ 8(CX), AX
MULQ 16(BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += a2×b1
MOVQ 16(CX), AX
MULQ 8(BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += a3×b0
MOVQ 24(CX), AX
MULQ (BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += 19×a4×b4
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R13
ADCQ DX, R12
// r4 = a0×b4
MOVQ (CX), AX
MULQ 32(BX)
MOVQ AX, R15
MOVQ DX, R14
// r4 += a1×b3
MOVQ 8(CX), AX
MULQ 24(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a2×b2
MOVQ 16(CX), AX
MULQ 16(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a3×b1
MOVQ 24(CX), AX
MULQ 8(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a4×b0
MOVQ 32(CX), AX
MULQ (BX)
ADDQ AX, R15
ADCQ DX, R14
// First reduction chain
MOVQ $0x0007ffffffffffff, AX
SHLQ $0x0d, DI, SI
SHLQ $0x0d, R9, R8
SHLQ $0x0d, R11, R10
SHLQ $0x0d, R13, R12
SHLQ $0x0d, R15, R14
ANDQ AX, DI
IMUL3Q $0x13, R14, R14
ADDQ R14, DI
ANDQ AX, R9
ADDQ SI, R9
ANDQ AX, R11
ADDQ R8, R11
ANDQ AX, R13
ADDQ R10, R13
ANDQ AX, R15
ADDQ R12, R15
// Second reduction chain (carryPropagate)
MOVQ DI, SI
SHRQ $0x33, SI
MOVQ R9, R8
SHRQ $0x33, R8
MOVQ R11, R10
SHRQ $0x33, R10
MOVQ R13, R12
SHRQ $0x33, R12
MOVQ R15, R14
SHRQ $0x33, R14
ANDQ AX, DI
IMUL3Q $0x13, R14, R14
ADDQ R14, DI
ANDQ AX, R9
ADDQ SI, R9
ANDQ AX, R11
ADDQ R8, R11
ANDQ AX, R13
ADDQ R10, R13
ANDQ AX, R15
ADDQ R12, R15
// Store output
MOVQ out+0(FP), AX
MOVQ DI, (AX)
MOVQ R9, 8(AX)
MOVQ R11, 16(AX)
MOVQ R13, 24(AX)
MOVQ R15, 32(AX)
RET
// func feSquare(out *Element, a *Element)
TEXT ·feSquare(SB), NOSPLIT, $0-16
MOVQ a+8(FP), CX
// r0 = l0×l0
MOVQ (CX), AX
MULQ (CX)
MOVQ AX, SI
MOVQ DX, BX
// r0 += 38×l1×l4
MOVQ 8(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, SI
ADCQ DX, BX
// r0 += 38×l2×l3
MOVQ 16(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 24(CX)
ADDQ AX, SI
ADCQ DX, BX
// r1 = 2×l0×l1
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 8(CX)
MOVQ AX, R8
MOVQ DX, DI
// r1 += 38×l2×l4
MOVQ 16(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, R8
ADCQ DX, DI
// r1 += 19×l3×l3
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(CX)
ADDQ AX, R8
ADCQ DX, DI
// r2 = 2×l0×l2
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 16(CX)
MOVQ AX, R10
MOVQ DX, R9
// r2 += l1×l1
MOVQ 8(CX), AX
MULQ 8(CX)
ADDQ AX, R10
ADCQ DX, R9
// r2 += 38×l3×l4
MOVQ 24(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, R10
ADCQ DX, R9
// r3 = 2×l0×l3
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 24(CX)
MOVQ AX, R12
MOVQ DX, R11
// r3 += 2×l1×l2
MOVQ 8(CX), AX
IMUL3Q $0x02, AX, AX
MULQ 16(CX)
ADDQ AX, R12
ADCQ DX, R11
// r3 += 19×l4×l4
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(CX)
ADDQ AX, R12
ADCQ DX, R11
// r4 = 2×l0×l4
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 32(CX)
MOVQ AX, R14
MOVQ DX, R13
// r4 += 2×l1×l3
MOVQ 8(CX), AX
IMUL3Q $0x02, AX, AX
MULQ 24(CX)
ADDQ AX, R14
ADCQ DX, R13
// r4 += l2×l2
MOVQ 16(CX), AX
MULQ 16(CX)
ADDQ AX, R14
ADCQ DX, R13
// First reduction chain
MOVQ $0x0007ffffffffffff, AX
SHLQ $0x0d, SI, BX
SHLQ $0x0d, R8, DI
SHLQ $0x0d, R10, R9
SHLQ $0x0d, R12, R11
SHLQ $0x0d, R14, R13
ANDQ AX, SI
IMUL3Q $0x13, R13, R13
ADDQ R13, SI
ANDQ AX, R8
ADDQ BX, R8
ANDQ AX, R10
ADDQ DI, R10
ANDQ AX, R12
ADDQ R9, R12
ANDQ AX, R14
ADDQ R11, R14
// Second reduction chain (carryPropagate)
MOVQ SI, BX
SHRQ $0x33, BX
MOVQ R8, DI
SHRQ $0x33, DI
MOVQ R10, R9
SHRQ $0x33, R9
MOVQ R12, R11
SHRQ $0x33, R11
MOVQ R14, R13
SHRQ $0x33, R13
ANDQ AX, SI
IMUL3Q $0x13, R13, R13
ADDQ R13, SI
ANDQ AX, R8
ADDQ BX, R8
ANDQ AX, R10
ADDQ DI, R10
ANDQ AX, R12
ADDQ R9, R12
ANDQ AX, R14
ADDQ R11, R14
// Store output
MOVQ out+0(FP), AX
MOVQ SI, (AX)
MOVQ R8, 8(AX)
MOVQ R10, 16(AX)
MOVQ R12, 24(AX)
MOVQ R14, 32(AX)
RET

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vendor/filippo.io/edwards25519/field/fe_amd64_noasm.go generated vendored Normal file
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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !amd64 || !gc || purego
// +build !amd64 !gc purego
package field
func feMul(v, x, y *Element) { feMulGeneric(v, x, y) }
func feSquare(v, x *Element) { feSquareGeneric(v, x) }

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vendor/filippo.io/edwards25519/field/fe_arm64.go generated vendored Normal file
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// Copyright (c) 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build arm64 && gc && !purego
// +build arm64,gc,!purego
package field
//go:noescape
func carryPropagate(v *Element)
func (v *Element) carryPropagate() *Element {
carryPropagate(v)
return v
}

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// Copyright (c) 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build arm64,gc,!purego
#include "textflag.h"
// carryPropagate works exactly like carryPropagateGeneric and uses the
// same AND, ADD, and LSR+MADD instructions emitted by the compiler, but
// avoids loading R0-R4 twice and uses LDP and STP.
//
// See https://golang.org/issues/43145 for the main compiler issue.
//
// func carryPropagate(v *Element)
TEXT ·carryPropagate(SB),NOFRAME|NOSPLIT,$0-8
MOVD v+0(FP), R20
LDP 0(R20), (R0, R1)
LDP 16(R20), (R2, R3)
MOVD 32(R20), R4
AND $0x7ffffffffffff, R0, R10
AND $0x7ffffffffffff, R1, R11
AND $0x7ffffffffffff, R2, R12
AND $0x7ffffffffffff, R3, R13
AND $0x7ffffffffffff, R4, R14
ADD R0>>51, R11, R11
ADD R1>>51, R12, R12
ADD R2>>51, R13, R13
ADD R3>>51, R14, R14
// R4>>51 * 19 + R10 -> R10
LSR $51, R4, R21
MOVD $19, R22
MADD R22, R10, R21, R10
STP (R10, R11), 0(R20)
STP (R12, R13), 16(R20)
MOVD R14, 32(R20)
RET

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vendor/filippo.io/edwards25519/field/fe_arm64_noasm.go generated vendored Normal file
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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !arm64 || !gc || purego
// +build !arm64 !gc purego
package field
func (v *Element) carryPropagate() *Element {
return v.carryPropagateGeneric()
}

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vendor/filippo.io/edwards25519/field/fe_extra.go generated vendored Normal file
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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package field
import "errors"
// This file contains additional functionality that is not included in the
// upstream crypto/ed25519/internal/edwards25519/field package.
// SetWideBytes sets v to x, where x is a 64-byte little-endian encoding, which
// is reduced modulo the field order. If x is not of the right length,
// SetWideBytes returns nil and an error, and the receiver is unchanged.
//
// SetWideBytes is not necessary to select a uniformly distributed value, and is
// only provided for compatibility: SetBytes can be used instead as the chance
// of bias is less than 2⁻²⁵⁰.
func (v *Element) SetWideBytes(x []byte) (*Element, error) {
if len(x) != 64 {
return nil, errors.New("edwards25519: invalid SetWideBytes input size")
}
// Split the 64 bytes into two elements, and extract the most significant
// bit of each, which is ignored by SetBytes.
lo, _ := new(Element).SetBytes(x[:32])
loMSB := uint64(x[31] >> 7)
hi, _ := new(Element).SetBytes(x[32:])
hiMSB := uint64(x[63] >> 7)
// The output we want is
//
// v = lo + loMSB * 2²⁵⁵ + hi * 2²⁵⁶ + hiMSB * 2⁵¹¹
//
// which applying the reduction identity comes out to
//
// v = lo + loMSB * 19 + hi * 2 * 19 + hiMSB * 2 * 19²
//
// l0 will be the sum of a 52 bits value (lo.l0), plus a 5 bits value
// (loMSB * 19), a 6 bits value (hi.l0 * 2 * 19), and a 10 bits value
// (hiMSB * 2 * 19²), so it fits in a uint64.
v.l0 = lo.l0 + loMSB*19 + hi.l0*2*19 + hiMSB*2*19*19
v.l1 = lo.l1 + hi.l1*2*19
v.l2 = lo.l2 + hi.l2*2*19
v.l3 = lo.l3 + hi.l3*2*19
v.l4 = lo.l4 + hi.l4*2*19
return v.carryPropagate(), nil
}

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// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package field
import "math/bits"
// uint128 holds a 128-bit number as two 64-bit limbs, for use with the
// bits.Mul64 and bits.Add64 intrinsics.
type uint128 struct {
lo, hi uint64
}
// mul64 returns a * b.
func mul64(a, b uint64) uint128 {
hi, lo := bits.Mul64(a, b)
return uint128{lo, hi}
}
// addMul64 returns v + a * b.
func addMul64(v uint128, a, b uint64) uint128 {
hi, lo := bits.Mul64(a, b)
lo, c := bits.Add64(lo, v.lo, 0)
hi, _ = bits.Add64(hi, v.hi, c)
return uint128{lo, hi}
}
// shiftRightBy51 returns a >> 51. a is assumed to be at most 115 bits.
func shiftRightBy51(a uint128) uint64 {
return (a.hi << (64 - 51)) | (a.lo >> 51)
}
func feMulGeneric(v, a, b *Element) {
a0 := a.l0
a1 := a.l1
a2 := a.l2
a3 := a.l3
a4 := a.l4
b0 := b.l0
b1 := b.l1
b2 := b.l2
b3 := b.l3
b4 := b.l4
// Limb multiplication works like pen-and-paper columnar multiplication, but
// with 51-bit limbs instead of digits.
//
// a4 a3 a2 a1 a0 x
// b4 b3 b2 b1 b0 =
// ------------------------
// a4b0 a3b0 a2b0 a1b0 a0b0 +
// a4b1 a3b1 a2b1 a1b1 a0b1 +
// a4b2 a3b2 a2b2 a1b2 a0b2 +
// a4b3 a3b3 a2b3 a1b3 a0b3 +
// a4b4 a3b4 a2b4 a1b4 a0b4 =
// ----------------------------------------------
// r8 r7 r6 r5 r4 r3 r2 r1 r0
//
// We can then use the reduction identity (a * 2²⁵⁵ + b = a * 19 + b) to
// reduce the limbs that would overflow 255 bits. r5 * 2²⁵⁵ becomes 19 * r5,
// r6 * 2³⁰⁶ becomes 19 * r6 * 2⁵¹, etc.
//
// Reduction can be carried out simultaneously to multiplication. For
// example, we do not compute r5: whenever the result of a multiplication
// belongs to r5, like a1b4, we multiply it by 19 and add the result to r0.
//
// a4b0 a3b0 a2b0 a1b0 a0b0 +
// a3b1 a2b1 a1b1 a0b1 19×a4b1 +
// a2b2 a1b2 a0b2 19×a4b2 19×a3b2 +
// a1b3 a0b3 19×a4b3 19×a3b3 19×a2b3 +
// a0b4 19×a4b4 19×a3b4 19×a2b4 19×a1b4 =
// --------------------------------------
// r4 r3 r2 r1 r0
//
// Finally we add up the columns into wide, overlapping limbs.
a1_19 := a1 * 19
a2_19 := a2 * 19
a3_19 := a3 * 19
a4_19 := a4 * 19
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
r0 := mul64(a0, b0)
r0 = addMul64(r0, a1_19, b4)
r0 = addMul64(r0, a2_19, b3)
r0 = addMul64(r0, a3_19, b2)
r0 = addMul64(r0, a4_19, b1)
// r1 = a0×b1 + a1×b0 + 19×(a2×b4 + a3×b3 + a4×b2)
r1 := mul64(a0, b1)
r1 = addMul64(r1, a1, b0)
r1 = addMul64(r1, a2_19, b4)
r1 = addMul64(r1, a3_19, b3)
r1 = addMul64(r1, a4_19, b2)
// r2 = a0×b2 + a1×b1 + a2×b0 + 19×(a3×b4 + a4×b3)
r2 := mul64(a0, b2)
r2 = addMul64(r2, a1, b1)
r2 = addMul64(r2, a2, b0)
r2 = addMul64(r2, a3_19, b4)
r2 = addMul64(r2, a4_19, b3)
// r3 = a0×b3 + a1×b2 + a2×b1 + a3×b0 + 19×a4×b4
r3 := mul64(a0, b3)
r3 = addMul64(r3, a1, b2)
r3 = addMul64(r3, a2, b1)
r3 = addMul64(r3, a3, b0)
r3 = addMul64(r3, a4_19, b4)
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
r4 := mul64(a0, b4)
r4 = addMul64(r4, a1, b3)
r4 = addMul64(r4, a2, b2)
r4 = addMul64(r4, a3, b1)
r4 = addMul64(r4, a4, b0)
// After the multiplication, we need to reduce (carry) the five coefficients
// to obtain a result with limbs that are at most slightly larger than 2⁵¹,
// to respect the Element invariant.
//
// Overall, the reduction works the same as carryPropagate, except with
// wider inputs: we take the carry for each coefficient by shifting it right
// by 51, and add it to the limb above it. The top carry is multiplied by 19
// according to the reduction identity and added to the lowest limb.
//
// The largest coefficient (r0) will be at most 111 bits, which guarantees
// that all carries are at most 111 - 51 = 60 bits, which fits in a uint64.
//
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
// r0 < 2⁵²×2⁵² + 19×(2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵²)
// r0 < (1 + 19 × 4) × 2⁵² × 2⁵²
// r0 < 2⁷ × 2⁵² × 2⁵²
// r0 < 2¹¹¹
//
// Moreover, the top coefficient (r4) is at most 107 bits, so c4 is at most
// 56 bits, and c4 * 19 is at most 61 bits, which again fits in a uint64 and
// allows us to easily apply the reduction identity.
//
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
// r4 < 5 × 2⁵² × 2⁵²
// r4 < 2¹⁰⁷
//
c0 := shiftRightBy51(r0)
c1 := shiftRightBy51(r1)
c2 := shiftRightBy51(r2)
c3 := shiftRightBy51(r3)
c4 := shiftRightBy51(r4)
rr0 := r0.lo&maskLow51Bits + c4*19
rr1 := r1.lo&maskLow51Bits + c0
rr2 := r2.lo&maskLow51Bits + c1
rr3 := r3.lo&maskLow51Bits + c2
rr4 := r4.lo&maskLow51Bits + c3
// Now all coefficients fit into 64-bit registers but are still too large to
// be passed around as a Element. We therefore do one last carry chain,
// where the carries will be small enough to fit in the wiggle room above 2⁵¹.
*v = Element{rr0, rr1, rr2, rr3, rr4}
v.carryPropagate()
}
func feSquareGeneric(v, a *Element) {
l0 := a.l0
l1 := a.l1
l2 := a.l2
l3 := a.l3
l4 := a.l4
// Squaring works precisely like multiplication above, but thanks to its
// symmetry we get to group a few terms together.
//
// l4 l3 l2 l1 l0 x
// l4 l3 l2 l1 l0 =
// ------------------------
// l4l0 l3l0 l2l0 l1l0 l0l0 +
// l4l1 l3l1 l2l1 l1l1 l0l1 +
// l4l2 l3l2 l2l2 l1l2 l0l2 +
// l4l3 l3l3 l2l3 l1l3 l0l3 +
// l4l4 l3l4 l2l4 l1l4 l0l4 =
// ----------------------------------------------
// r8 r7 r6 r5 r4 r3 r2 r1 r0
//
// l4l0 l3l0 l2l0 l1l0 l0l0 +
// l3l1 l2l1 l1l1 l0l1 19×l4l1 +
// l2l2 l1l2 l0l2 19×l4l2 19×l3l2 +
// l1l3 l0l3 19×l4l3 19×l3l3 19×l2l3 +
// l0l4 19×l4l4 19×l3l4 19×l2l4 19×l1l4 =
// --------------------------------------
// r4 r3 r2 r1 r0
//
// With precomputed 2×, 19×, and 2×19× terms, we can compute each limb with
// only three Mul64 and four Add64, instead of five and eight.
l0_2 := l0 * 2
l1_2 := l1 * 2
l1_38 := l1 * 38
l2_38 := l2 * 38
l3_38 := l3 * 38
l3_19 := l3 * 19
l4_19 := l4 * 19
// r0 = l0×l0 + 19×(l1×l4 + l2×l3 + l3×l2 + l4×l1) = l0×l0 + 19×2×(l1×l4 + l2×l3)
r0 := mul64(l0, l0)
r0 = addMul64(r0, l1_38, l4)
r0 = addMul64(r0, l2_38, l3)
// r1 = l0×l1 + l1×l0 + 19×(l2×l4 + l3×l3 + l4×l2) = 2×l0×l1 + 19×2×l2×l4 + 19×l3×l3
r1 := mul64(l0_2, l1)
r1 = addMul64(r1, l2_38, l4)
r1 = addMul64(r1, l3_19, l3)
// r2 = l0×l2 + l1×l1 + l2×l0 + 19×(l3×l4 + l4×l3) = 2×l0×l2 + l1×l1 + 19×2×l3×l4
r2 := mul64(l0_2, l2)
r2 = addMul64(r2, l1, l1)
r2 = addMul64(r2, l3_38, l4)
// r3 = l0×l3 + l1×l2 + l2×l1 + l3×l0 + 19×l4×l4 = 2×l0×l3 + 2×l1×l2 + 19×l4×l4
r3 := mul64(l0_2, l3)
r3 = addMul64(r3, l1_2, l2)
r3 = addMul64(r3, l4_19, l4)
// r4 = l0×l4 + l1×l3 + l2×l2 + l3×l1 + l4×l0 = 2×l0×l4 + 2×l1×l3 + l2×l2
r4 := mul64(l0_2, l4)
r4 = addMul64(r4, l1_2, l3)
r4 = addMul64(r4, l2, l2)
c0 := shiftRightBy51(r0)
c1 := shiftRightBy51(r1)
c2 := shiftRightBy51(r2)
c3 := shiftRightBy51(r3)
c4 := shiftRightBy51(r4)
rr0 := r0.lo&maskLow51Bits + c4*19
rr1 := r1.lo&maskLow51Bits + c0
rr2 := r2.lo&maskLow51Bits + c1
rr3 := r3.lo&maskLow51Bits + c2
rr4 := r4.lo&maskLow51Bits + c3
*v = Element{rr0, rr1, rr2, rr3, rr4}
v.carryPropagate()
}
// carryPropagate brings the limbs below 52 bits by applying the reduction
// identity (a * 2²⁵⁵ + b = a * 19 + b) to the l4 carry.
func (v *Element) carryPropagateGeneric() *Element {
c0 := v.l0 >> 51
c1 := v.l1 >> 51
c2 := v.l2 >> 51
c3 := v.l3 >> 51
c4 := v.l4 >> 51
// c4 is at most 64 - 51 = 13 bits, so c4*19 is at most 18 bits, and
// the final l0 will be at most 52 bits. Similarly for the rest.
v.l0 = v.l0&maskLow51Bits + c4*19
v.l1 = v.l1&maskLow51Bits + c0
v.l2 = v.l2&maskLow51Bits + c1
v.l3 = v.l3&maskLow51Bits + c2
v.l4 = v.l4&maskLow51Bits + c3
return v
}

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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import "sync"
// basepointTable is a set of 32 affineLookupTables, where table i is generated
// from 256i * basepoint. It is precomputed the first time it's used.
func basepointTable() *[32]affineLookupTable {
basepointTablePrecomp.initOnce.Do(func() {
p := NewGeneratorPoint()
for i := 0; i < 32; i++ {
basepointTablePrecomp.table[i].FromP3(p)
for j := 0; j < 8; j++ {
p.Add(p, p)
}
}
})
return &basepointTablePrecomp.table
}
var basepointTablePrecomp struct {
table [32]affineLookupTable
initOnce sync.Once
}
// ScalarBaseMult sets v = x * B, where B is the canonical generator, and
// returns v.
//
// The scalar multiplication is done in constant time.
func (v *Point) ScalarBaseMult(x *Scalar) *Point {
basepointTable := basepointTable()
// Write x = sum(x_i * 16^i) so x*B = sum( B*x_i*16^i )
// as described in the Ed25519 paper
//
// Group even and odd coefficients
// x*B = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
// + x_1*16^1*B + x_3*16^3*B + ... + x_63*16^63*B
// x*B = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
// + 16*( x_1*16^0*B + x_3*16^2*B + ... + x_63*16^62*B)
//
// We use a lookup table for each i to get x_i*16^(2*i)*B
// and do four doublings to multiply by 16.
digits := x.signedRadix16()
multiple := &affineCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
// Accumulate the odd components first
v.Set(NewIdentityPoint())
for i := 1; i < 64; i += 2 {
basepointTable[i/2].SelectInto(multiple, digits[i])
tmp1.AddAffine(v, multiple)
v.fromP1xP1(tmp1)
}
// Multiply by 16
tmp2.FromP3(v) // tmp2 = v in P2 coords
tmp1.Double(tmp2) // tmp1 = 2*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*v in P1xP1 coords
v.fromP1xP1(tmp1) // now v = 16*(odd components)
// Accumulate the even components
for i := 0; i < 64; i += 2 {
basepointTable[i/2].SelectInto(multiple, digits[i])
tmp1.AddAffine(v, multiple)
v.fromP1xP1(tmp1)
}
return v
}
// ScalarMult sets v = x * q, and returns v.
//
// The scalar multiplication is done in constant time.
func (v *Point) ScalarMult(x *Scalar, q *Point) *Point {
checkInitialized(q)
var table projLookupTable
table.FromP3(q)
// Write x = sum(x_i * 16^i)
// so x*Q = sum( Q*x_i*16^i )
// = Q*x_0 + 16*(Q*x_1 + 16*( ... + Q*x_63) ... )
// <------compute inside out---------
//
// We use the lookup table to get the x_i*Q values
// and do four doublings to compute 16*Q
digits := x.signedRadix16()
// Unwrap first loop iteration to save computing 16*identity
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
table.SelectInto(multiple, digits[63])
v.Set(NewIdentityPoint())
tmp1.Add(v, multiple) // tmp1 = x_63*Q in P1xP1 coords
for i := 62; i >= 0; i-- {
tmp2.FromP1xP1(tmp1) // tmp2 = (prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 2*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*(prev) in P1xP1 coords
v.fromP1xP1(tmp1) // v = 16*(prev) in P3 coords
table.SelectInto(multiple, digits[i])
tmp1.Add(v, multiple) // tmp1 = x_i*Q + 16*(prev) in P1xP1 coords
}
v.fromP1xP1(tmp1)
return v
}
// basepointNafTable is the nafLookupTable8 for the basepoint.
// It is precomputed the first time it's used.
func basepointNafTable() *nafLookupTable8 {
basepointNafTablePrecomp.initOnce.Do(func() {
basepointNafTablePrecomp.table.FromP3(NewGeneratorPoint())
})
return &basepointNafTablePrecomp.table
}
var basepointNafTablePrecomp struct {
table nafLookupTable8
initOnce sync.Once
}
// VarTimeDoubleScalarBaseMult sets v = a * A + b * B, where B is the canonical
// generator, and returns v.
//
// Execution time depends on the inputs.
func (v *Point) VarTimeDoubleScalarBaseMult(a *Scalar, A *Point, b *Scalar) *Point {
checkInitialized(A)
// Similarly to the single variable-base approach, we compute
// digits and use them with a lookup table. However, because
// we are allowed to do variable-time operations, we don't
// need constant-time lookups or constant-time digit
// computations.
//
// So we use a non-adjacent form of some width w instead of
// radix 16. This is like a binary representation (one digit
// for each binary place) but we allow the digits to grow in
// magnitude up to 2^{w-1} so that the nonzero digits are as
// sparse as possible. Intuitively, this "condenses" the
// "mass" of the scalar onto sparse coefficients (meaning
// fewer additions).
basepointNafTable := basepointNafTable()
var aTable nafLookupTable5
aTable.FromP3(A)
// Because the basepoint is fixed, we can use a wider NAF
// corresponding to a bigger table.
aNaf := a.nonAdjacentForm(5)
bNaf := b.nonAdjacentForm(8)
// Find the first nonzero coefficient.
i := 255
for j := i; j >= 0; j-- {
if aNaf[j] != 0 || bNaf[j] != 0 {
break
}
}
multA := &projCached{}
multB := &affineCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
tmp2.Zero()
// Move from high to low bits, doubling the accumulator
// at each iteration and checking whether there is a nonzero
// coefficient to look up a multiple of.
for ; i >= 0; i-- {
tmp1.Double(tmp2)
// Only update v if we have a nonzero coeff to add in.
if aNaf[i] > 0 {
v.fromP1xP1(tmp1)
aTable.SelectInto(multA, aNaf[i])
tmp1.Add(v, multA)
} else if aNaf[i] < 0 {
v.fromP1xP1(tmp1)
aTable.SelectInto(multA, -aNaf[i])
tmp1.Sub(v, multA)
}
if bNaf[i] > 0 {
v.fromP1xP1(tmp1)
basepointNafTable.SelectInto(multB, bNaf[i])
tmp1.AddAffine(v, multB)
} else if bNaf[i] < 0 {
v.fromP1xP1(tmp1)
basepointNafTable.SelectInto(multB, -bNaf[i])
tmp1.SubAffine(v, multB)
}
tmp2.FromP1xP1(tmp1)
}
v.fromP2(tmp2)
return v
}

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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"crypto/subtle"
)
// A dynamic lookup table for variable-base, constant-time scalar muls.
type projLookupTable struct {
points [8]projCached
}
// A precomputed lookup table for fixed-base, constant-time scalar muls.
type affineLookupTable struct {
points [8]affineCached
}
// A dynamic lookup table for variable-base, variable-time scalar muls.
type nafLookupTable5 struct {
points [8]projCached
}
// A precomputed lookup table for fixed-base, variable-time scalar muls.
type nafLookupTable8 struct {
points [64]affineCached
}
// Constructors.
// Builds a lookup table at runtime. Fast.
func (v *projLookupTable) FromP3(q *Point) {
// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
v.points[0].FromP3(q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
// Compute (i+1)*Q as Q + i*Q and convert to a ProjCached
// This is needlessly complicated because the API has explicit
// recievers instead of creating stack objects and relying on RVO
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(q, &v.points[i])))
}
}
// This is not optimised for speed; fixed-base tables should be precomputed.
func (v *affineLookupTable) FromP3(q *Point) {
// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
v.points[0].FromP3(q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
// Compute (i+1)*Q as Q + i*Q and convert to AffineCached
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(q, &v.points[i])))
}
}
// Builds a lookup table at runtime. Fast.
func (v *nafLookupTable5) FromP3(q *Point) {
// Goal: v.points[i] = (2*i+1)*Q, i.e., Q, 3Q, 5Q, ..., 15Q
// This allows lookup of -15Q, ..., -3Q, -Q, 0, Q, 3Q, ..., 15Q
v.points[0].FromP3(q)
q2 := Point{}
q2.Add(q, q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(&q2, &v.points[i])))
}
}
// This is not optimised for speed; fixed-base tables should be precomputed.
func (v *nafLookupTable8) FromP3(q *Point) {
v.points[0].FromP3(q)
q2 := Point{}
q2.Add(q, q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 63; i++ {
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(&q2, &v.points[i])))
}
}
// Selectors.
// Set dest to x*Q, where -8 <= x <= 8, in constant time.
func (v *projLookupTable) SelectInto(dest *projCached, x int8) {
// Compute xabs = |x|
xmask := x >> 7
xabs := uint8((x + xmask) ^ xmask)
dest.Zero()
for j := 1; j <= 8; j++ {
// Set dest = j*Q if |x| = j
cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
dest.Select(&v.points[j-1], dest, cond)
}
// Now dest = |x|*Q, conditionally negate to get x*Q
dest.CondNeg(int(xmask & 1))
}
// Set dest to x*Q, where -8 <= x <= 8, in constant time.
func (v *affineLookupTable) SelectInto(dest *affineCached, x int8) {
// Compute xabs = |x|
xmask := x >> 7
xabs := uint8((x + xmask) ^ xmask)
dest.Zero()
for j := 1; j <= 8; j++ {
// Set dest = j*Q if |x| = j
cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
dest.Select(&v.points[j-1], dest, cond)
}
// Now dest = |x|*Q, conditionally negate to get x*Q
dest.CondNeg(int(xmask & 1))
}
// Given odd x with 0 < x < 2^4, return x*Q (in variable time).
func (v *nafLookupTable5) SelectInto(dest *projCached, x int8) {
*dest = v.points[x/2]
}
// Given odd x with 0 < x < 2^7, return x*Q (in variable time).
func (v *nafLookupTable8) SelectInto(dest *affineCached, x int8) {
*dest = v.points[x/2]
}

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logrus
vendor
.idea/

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run:
# do not run on test files yet
tests: false
# all available settings of specific linters
linters-settings:
errcheck:
# report about not checking of errors in type assetions: `a := b.(MyStruct)`;
# default is false: such cases aren't reported by default.
check-type-assertions: false
# report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
# default is false: such cases aren't reported by default.
check-blank: false
lll:
line-length: 100
tab-width: 4
prealloc:
simple: false
range-loops: false
for-loops: false
whitespace:
multi-if: false # Enforces newlines (or comments) after every multi-line if statement
multi-func: false # Enforces newlines (or comments) after every multi-line function signature
linters:
enable:
- megacheck
- govet
disable:
- maligned
- prealloc
disable-all: false
presets:
- bugs
- unused
fast: false

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language: go
go_import_path: github.com/sirupsen/logrus
git:
depth: 1
env:
- GO111MODULE=on
go: 1.15.x
os: linux
install:
- ./travis/install.sh
script:
- cd ci
- go run mage.go -v -w ../ crossBuild
- go run mage.go -v -w ../ lint
- go run mage.go -v -w ../ test

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# 1.8.1
Code quality:
* move magefile in its own subdir/submodule to remove magefile dependency on logrus consumer
* improve timestamp format documentation
Fixes:
* fix race condition on logger hooks
# 1.8.0
Correct versioning number replacing v1.7.1.
# 1.7.1
Beware this release has introduced a new public API and its semver is therefore incorrect.
Code quality:
* use go 1.15 in travis
* use magefile as task runner
Fixes:
* small fixes about new go 1.13 error formatting system
* Fix for long time race condiction with mutating data hooks
Features:
* build support for zos
# 1.7.0
Fixes:
* the dependency toward a windows terminal library has been removed
Features:
* a new buffer pool management API has been added
* a set of `<LogLevel>Fn()` functions have been added
# 1.6.0
Fixes:
* end of line cleanup
* revert the entry concurrency bug fix whic leads to deadlock under some circumstances
* update dependency on go-windows-terminal-sequences to fix a crash with go 1.14
Features:
* add an option to the `TextFormatter` to completely disable fields quoting
# 1.5.0
Code quality:
* add golangci linter run on travis
Fixes:
* add mutex for hooks concurrent access on `Entry` data
* caller function field for go1.14
* fix build issue for gopherjs target
Feature:
* add an hooks/writer sub-package whose goal is to split output on different stream depending on the trace level
* add a `DisableHTMLEscape` option in the `JSONFormatter`
* add `ForceQuote` and `PadLevelText` options in the `TextFormatter`
# 1.4.2
* Fixes build break for plan9, nacl, solaris
# 1.4.1
This new release introduces:
* Enhance TextFormatter to not print caller information when they are empty (#944)
* Remove dependency on golang.org/x/crypto (#932, #943)
Fixes:
* Fix Entry.WithContext method to return a copy of the initial entry (#941)
# 1.4.0
This new release introduces:
* Add `DeferExitHandler`, similar to `RegisterExitHandler` but prepending the handler to the list of handlers (semantically like `defer`) (#848).
* Add `CallerPrettyfier` to `JSONFormatter` and `TextFormatter` (#909, #911)
* Add `Entry.WithContext()` and `Entry.Context`, to set a context on entries to be used e.g. in hooks (#919).
Fixes:
* Fix wrong method calls `Logger.Print` and `Logger.Warningln` (#893).
* Update `Entry.Logf` to not do string formatting unless the log level is enabled (#903)
* Fix infinite recursion on unknown `Level.String()` (#907)
* Fix race condition in `getCaller` (#916).
# 1.3.0
This new release introduces:
* Log, Logf, Logln functions for Logger and Entry that take a Level
Fixes:
* Building prometheus node_exporter on AIX (#840)
* Race condition in TextFormatter (#468)
* Travis CI import path (#868)
* Remove coloured output on Windows (#862)
* Pointer to func as field in JSONFormatter (#870)
* Properly marshal Levels (#873)
# 1.2.0
This new release introduces:
* A new method `SetReportCaller` in the `Logger` to enable the file, line and calling function from which the trace has been issued
* A new trace level named `Trace` whose level is below `Debug`
* A configurable exit function to be called upon a Fatal trace
* The `Level` object now implements `encoding.TextUnmarshaler` interface
# 1.1.1
This is a bug fix release.
* fix the build break on Solaris
* don't drop a whole trace in JSONFormatter when a field param is a function pointer which can not be serialized
# 1.1.0
This new release introduces:
* several fixes:
* a fix for a race condition on entry formatting
* proper cleanup of previously used entries before putting them back in the pool
* the extra new line at the end of message in text formatter has been removed
* a new global public API to check if a level is activated: IsLevelEnabled
* the following methods have been added to the Logger object
* IsLevelEnabled
* SetFormatter
* SetOutput
* ReplaceHooks
* introduction of go module
* an indent configuration for the json formatter
* output colour support for windows
* the field sort function is now configurable for text formatter
* the CLICOLOR and CLICOLOR\_FORCE environment variable support in text formater
# 1.0.6
This new release introduces:
* a new api WithTime which allows to easily force the time of the log entry
which is mostly useful for logger wrapper
* a fix reverting the immutability of the entry given as parameter to the hooks
a new configuration field of the json formatter in order to put all the fields
in a nested dictionnary
* a new SetOutput method in the Logger
* a new configuration of the textformatter to configure the name of the default keys
* a new configuration of the text formatter to disable the level truncation
# 1.0.5
* Fix hooks race (#707)
* Fix panic deadlock (#695)
# 1.0.4
* Fix race when adding hooks (#612)
* Fix terminal check in AppEngine (#635)
# 1.0.3
* Replace example files with testable examples
# 1.0.2
* bug: quote non-string values in text formatter (#583)
* Make (*Logger) SetLevel a public method
# 1.0.1
* bug: fix escaping in text formatter (#575)
# 1.0.0
* Officially changed name to lower-case
* bug: colors on Windows 10 (#541)
* bug: fix race in accessing level (#512)
# 0.11.5
* feature: add writer and writerlevel to entry (#372)
# 0.11.4
* bug: fix undefined variable on solaris (#493)
# 0.11.3
* formatter: configure quoting of empty values (#484)
* formatter: configure quoting character (default is `"`) (#484)
* bug: fix not importing io correctly in non-linux environments (#481)
# 0.11.2
* bug: fix windows terminal detection (#476)
# 0.11.1
* bug: fix tty detection with custom out (#471)
# 0.11.0
* performance: Use bufferpool to allocate (#370)
* terminal: terminal detection for app-engine (#343)
* feature: exit handler (#375)
# 0.10.0
* feature: Add a test hook (#180)
* feature: `ParseLevel` is now case-insensitive (#326)
* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
* performance: avoid re-allocations on `WithFields` (#335)
# 0.9.0
* logrus/text_formatter: don't emit empty msg
* logrus/hooks/airbrake: move out of main repository
* logrus/hooks/sentry: move out of main repository
* logrus/hooks/papertrail: move out of main repository
* logrus/hooks/bugsnag: move out of main repository
* logrus/core: run tests with `-race`
* logrus/core: detect TTY based on `stderr`
* logrus/core: support `WithError` on logger
* logrus/core: Solaris support
# 0.8.7
* logrus/core: fix possible race (#216)
* logrus/doc: small typo fixes and doc improvements
# 0.8.6
* hooks/raven: allow passing an initialized client
# 0.8.5
* logrus/core: revert #208
# 0.8.4
* formatter/text: fix data race (#218)
# 0.8.3
* logrus/core: fix entry log level (#208)
* logrus/core: improve performance of text formatter by 40%
* logrus/core: expose `LevelHooks` type
* logrus/core: add support for DragonflyBSD and NetBSD
* formatter/text: print structs more verbosely
# 0.8.2
* logrus: fix more Fatal family functions
# 0.8.1
* logrus: fix not exiting on `Fatalf` and `Fatalln`
# 0.8.0
* logrus: defaults to stderr instead of stdout
* hooks/sentry: add special field for `*http.Request`
* formatter/text: ignore Windows for colors
# 0.7.3
* formatter/\*: allow configuration of timestamp layout
# 0.7.2
* formatter/text: Add configuration option for time format (#158)

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The MIT License (MIT)
Copyright (c) 2014 Simon Eskildsen
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/> [![Build Status](https://github.com/sirupsen/logrus/workflows/CI/badge.svg)](https://github.com/sirupsen/logrus/actions?query=workflow%3ACI) [![Build Status](https://travis-ci.org/sirupsen/logrus.svg?branch=master)](https://travis-ci.org/sirupsen/logrus) [![Go Reference](https://pkg.go.dev/badge/github.com/sirupsen/logrus.svg)](https://pkg.go.dev/github.com/sirupsen/logrus)
Logrus is a structured logger for Go (golang), completely API compatible with
the standard library logger.
**Logrus is in maintenance-mode.** We will not be introducing new features. It's
simply too hard to do in a way that won't break many people's projects, which is
the last thing you want from your Logging library (again...).
This does not mean Logrus is dead. Logrus will continue to be maintained for
security, (backwards compatible) bug fixes, and performance (where we are
limited by the interface).
I believe Logrus' biggest contribution is to have played a part in today's
widespread use of structured logging in Golang. There doesn't seem to be a
reason to do a major, breaking iteration into Logrus V2, since the fantastic Go
community has built those independently. Many fantastic alternatives have sprung
up. Logrus would look like those, had it been re-designed with what we know
about structured logging in Go today. Check out, for example,
[Zerolog][zerolog], [Zap][zap], and [Apex][apex].
[zerolog]: https://github.com/rs/zerolog
[zap]: https://github.com/uber-go/zap
[apex]: https://github.com/apex/log
**Seeing weird case-sensitive problems?** It's in the past been possible to
import Logrus as both upper- and lower-case. Due to the Go package environment,
this caused issues in the community and we needed a standard. Some environments
experienced problems with the upper-case variant, so the lower-case was decided.
Everything using `logrus` will need to use the lower-case:
`github.com/sirupsen/logrus`. Any package that isn't, should be changed.
To fix Glide, see [these
comments](https://github.com/sirupsen/logrus/issues/553#issuecomment-306591437).
For an in-depth explanation of the casing issue, see [this
comment](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276).
Nicely color-coded in development (when a TTY is attached, otherwise just
plain text):
![Colored](http://i.imgur.com/PY7qMwd.png)
With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash
or Splunk:
```json
{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
{"level":"warning","msg":"The group's number increased tremendously!",
"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
```
With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not
attached, the output is compatible with the
[logfmt](http://godoc.org/github.com/kr/logfmt) format:
```text
time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
```
To ensure this behaviour even if a TTY is attached, set your formatter as follows:
```go
log.SetFormatter(&log.TextFormatter{
DisableColors: true,
FullTimestamp: true,
})
```
#### Logging Method Name
If you wish to add the calling method as a field, instruct the logger via:
```go
log.SetReportCaller(true)
```
This adds the caller as 'method' like so:
```json
{"animal":"penguin","level":"fatal","method":"github.com/sirupsen/arcticcreatures.migrate","msg":"a penguin swims by",
"time":"2014-03-10 19:57:38.562543129 -0400 EDT"}
```
```text
time="2015-03-26T01:27:38-04:00" level=fatal method=github.com/sirupsen/arcticcreatures.migrate msg="a penguin swims by" animal=penguin
```
Note that this does add measurable overhead - the cost will depend on the version of Go, but is
between 20 and 40% in recent tests with 1.6 and 1.7. You can validate this in your
environment via benchmarks:
```
go test -bench=.*CallerTracing
```
#### Case-sensitivity
The organization's name was changed to lower-case--and this will not be changed
back. If you are getting import conflicts due to case sensitivity, please use
the lower-case import: `github.com/sirupsen/logrus`.
#### Example
The simplest way to use Logrus is simply the package-level exported logger:
```go
package main
import (
log "github.com/sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
}).Info("A walrus appears")
}
```
Note that it's completely api-compatible with the stdlib logger, so you can
replace your `log` imports everywhere with `log "github.com/sirupsen/logrus"`
and you'll now have the flexibility of Logrus. You can customize it all you
want:
```go
package main
import (
"os"
log "github.com/sirupsen/logrus"
)
func init() {
// Log as JSON instead of the default ASCII formatter.
log.SetFormatter(&log.JSONFormatter{})
// Output to stdout instead of the default stderr
// Can be any io.Writer, see below for File example
log.SetOutput(os.Stdout)
// Only log the warning severity or above.
log.SetLevel(log.WarnLevel)
}
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
log.WithFields(log.Fields{
"omg": true,
"number": 122,
}).Warn("The group's number increased tremendously!")
log.WithFields(log.Fields{
"omg": true,
"number": 100,
}).Fatal("The ice breaks!")
// A common pattern is to re-use fields between logging statements by re-using
// the logrus.Entry returned from WithFields()
contextLogger := log.WithFields(log.Fields{
"common": "this is a common field",
"other": "I also should be logged always",
})
contextLogger.Info("I'll be logged with common and other field")
contextLogger.Info("Me too")
}
```
For more advanced usage such as logging to multiple locations from the same
application, you can also create an instance of the `logrus` Logger:
```go
package main
import (
"os"
"github.com/sirupsen/logrus"
)
// Create a new instance of the logger. You can have any number of instances.
var log = logrus.New()
func main() {
// The API for setting attributes is a little different than the package level
// exported logger. See Godoc.
log.Out = os.Stdout
// You could set this to any `io.Writer` such as a file
// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
// if err == nil {
// log.Out = file
// } else {
// log.Info("Failed to log to file, using default stderr")
// }
log.WithFields(logrus.Fields{
"animal": "walrus",
"size": 10,
}).Info("A group of walrus emerges from the ocean")
}
```
#### Fields
Logrus encourages careful, structured logging through logging fields instead of
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
to send event %s to topic %s with key %d")`, you should log the much more
discoverable:
```go
log.WithFields(log.Fields{
"event": event,
"topic": topic,
"key": key,
}).Fatal("Failed to send event")
```
We've found this API forces you to think about logging in a way that produces
much more useful logging messages. We've been in countless situations where just
a single added field to a log statement that was already there would've saved us
hours. The `WithFields` call is optional.
In general, with Logrus using any of the `printf`-family functions should be
seen as a hint you should add a field, however, you can still use the
`printf`-family functions with Logrus.
#### Default Fields
Often it's helpful to have fields _always_ attached to log statements in an
application or parts of one. For example, you may want to always log the
`request_id` and `user_ip` in the context of a request. Instead of writing
`log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})` on
every line, you can create a `logrus.Entry` to pass around instead:
```go
requestLogger := log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})
requestLogger.Info("something happened on that request") # will log request_id and user_ip
requestLogger.Warn("something not great happened")
```
#### Hooks
You can add hooks for logging levels. For example to send errors to an exception
tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
multiple places simultaneously, e.g. syslog.
Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
`init`:
```go
import (
log "github.com/sirupsen/logrus"
"gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "airbrake"
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
"log/syslog"
)
func init() {
// Use the Airbrake hook to report errors that have Error severity or above to
// an exception tracker. You can create custom hooks, see the Hooks section.
log.AddHook(airbrake.NewHook(123, "xyz", "production"))
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
if err != nil {
log.Error("Unable to connect to local syslog daemon")
} else {
log.AddHook(hook)
}
}
```
Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
A list of currently known service hooks can be found in this wiki [page](https://github.com/sirupsen/logrus/wiki/Hooks)
#### Level logging
Logrus has seven logging levels: Trace, Debug, Info, Warning, Error, Fatal and Panic.
```go
log.Trace("Something very low level.")
log.Debug("Useful debugging information.")
log.Info("Something noteworthy happened!")
log.Warn("You should probably take a look at this.")
log.Error("Something failed but I'm not quitting.")
// Calls os.Exit(1) after logging
log.Fatal("Bye.")
// Calls panic() after logging
log.Panic("I'm bailing.")
```
You can set the logging level on a `Logger`, then it will only log entries with
that severity or anything above it:
```go
// Will log anything that is info or above (warn, error, fatal, panic). Default.
log.SetLevel(log.InfoLevel)
```
It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
environment if your application has that.
Note: If you want different log levels for global (`log.SetLevel(...)`) and syslog logging, please check the [syslog hook README](hooks/syslog/README.md#different-log-levels-for-local-and-remote-logging).
#### Entries
Besides the fields added with `WithField` or `WithFields` some fields are
automatically added to all logging events:
1. `time`. The timestamp when the entry was created.
2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
the `AddFields` call. E.g. `Failed to send event.`
3. `level`. The logging level. E.g. `info`.
#### Environments
Logrus has no notion of environment.
If you wish for hooks and formatters to only be used in specific environments,
you should handle that yourself. For example, if your application has a global
variable `Environment`, which is a string representation of the environment you
could do:
```go
import (
log "github.com/sirupsen/logrus"
)
func init() {
// do something here to set environment depending on an environment variable
// or command-line flag
if Environment == "production" {
log.SetFormatter(&log.JSONFormatter{})
} else {
// The TextFormatter is default, you don't actually have to do this.
log.SetFormatter(&log.TextFormatter{})
}
}
```
This configuration is how `logrus` was intended to be used, but JSON in
production is mostly only useful if you do log aggregation with tools like
Splunk or Logstash.
#### Formatters
The built-in logging formatters are:
* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
without colors.
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
field to `true`. To force no colored output even if there is a TTY set the
`DisableColors` field to `true`. For Windows, see
[github.com/mattn/go-colorable](https://github.com/mattn/go-colorable).
* When colors are enabled, levels are truncated to 4 characters by default. To disable
truncation set the `DisableLevelTruncation` field to `true`.
* When outputting to a TTY, it's often helpful to visually scan down a column where all the levels are the same width. Setting the `PadLevelText` field to `true` enables this behavior, by adding padding to the level text.
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#TextFormatter).
* `logrus.JSONFormatter`. Logs fields as JSON.
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#JSONFormatter).
Third party logging formatters:
* [`FluentdFormatter`](https://github.com/joonix/log). Formats entries that can be parsed by Kubernetes and Google Container Engine.
* [`GELF`](https://github.com/fabienm/go-logrus-formatters). Formats entries so they comply to Graylog's [GELF 1.1 specification](http://docs.graylog.org/en/2.4/pages/gelf.html).
* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the Power of Zalgo.
* [`nested-logrus-formatter`](https://github.com/antonfisher/nested-logrus-formatter). Converts logrus fields to a nested structure.
* [`powerful-logrus-formatter`](https://github.com/zput/zxcTool). get fileName, log's line number and the latest function's name when print log; Sava log to files.
* [`caption-json-formatter`](https://github.com/nolleh/caption_json_formatter). logrus's message json formatter with human-readable caption added.
You can define your formatter by implementing the `Formatter` interface,
requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
`Fields` type (`map[string]interface{}`) with all your fields as well as the
default ones (see Entries section above):
```go
type MyJSONFormatter struct {
}
log.SetFormatter(new(MyJSONFormatter))
func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) {
// Note this doesn't include Time, Level and Message which are available on
// the Entry. Consult `godoc` on information about those fields or read the
// source of the official loggers.
serialized, err := json.Marshal(entry.Data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %w", err)
}
return append(serialized, '\n'), nil
}
```
#### Logger as an `io.Writer`
Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it.
```go
w := logger.Writer()
defer w.Close()
srv := http.Server{
// create a stdlib log.Logger that writes to
// logrus.Logger.
ErrorLog: log.New(w, "", 0),
}
```
Each line written to that writer will be printed the usual way, using formatters
and hooks. The level for those entries is `info`.
This means that we can override the standard library logger easily:
```go
logger := logrus.New()
logger.Formatter = &logrus.JSONFormatter{}
// Use logrus for standard log output
// Note that `log` here references stdlib's log
// Not logrus imported under the name `log`.
log.SetOutput(logger.Writer())
```
#### Rotation
Log rotation is not provided with Logrus. Log rotation should be done by an
external program (like `logrotate(8)`) that can compress and delete old log
entries. It should not be a feature of the application-level logger.
#### Tools
| Tool | Description |
| ---- | ----------- |
|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will be generated with different configs in different environments.|
|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper around Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
#### Testing
Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides:
* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just adds the `test` hook
* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
```go
import(
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/assert"
"testing"
)
func TestSomething(t*testing.T){
logger, hook := test.NewNullLogger()
logger.Error("Helloerror")
assert.Equal(t, 1, len(hook.Entries))
assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
assert.Equal(t, "Helloerror", hook.LastEntry().Message)
hook.Reset()
assert.Nil(t, hook.LastEntry())
}
```
#### Fatal handlers
Logrus can register one or more functions that will be called when any `fatal`
level message is logged. The registered handlers will be executed before
logrus performs an `os.Exit(1)`. This behavior may be helpful if callers need
to gracefully shutdown. Unlike a `panic("Something went wrong...")` call which can be intercepted with a deferred `recover` a call to `os.Exit(1)` can not be intercepted.
```
...
handler := func() {
// gracefully shutdown something...
}
logrus.RegisterExitHandler(handler)
...
```
#### Thread safety
By default, Logger is protected by a mutex for concurrent writes. The mutex is held when calling hooks and writing logs.
If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
Situation when locking is not needed includes:
* You have no hooks registered, or hooks calling is already thread-safe.
* Writing to logger.Out is already thread-safe, for example:
1) logger.Out is protected by locks.
2) logger.Out is an os.File handler opened with `O_APPEND` flag, and every write is smaller than 4k. (This allows multi-thread/multi-process writing)
(Refer to http://www.notthewizard.com/2014/06/17/are-files-appends-really-atomic/)

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package logrus
// The following code was sourced and modified from the
// https://github.com/tebeka/atexit package governed by the following license:
//
// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import (
"fmt"
"os"
)
var handlers = []func(){}
func runHandler(handler func()) {
defer func() {
if err := recover(); err != nil {
fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
}
}()
handler()
}
func runHandlers() {
for _, handler := range handlers {
runHandler(handler)
}
}
// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
func Exit(code int) {
runHandlers()
os.Exit(code)
}
// RegisterExitHandler appends a Logrus Exit handler to the list of handlers,
// call logrus.Exit to invoke all handlers. The handlers will also be invoked when
// any Fatal log entry is made.
//
// This method is useful when a caller wishes to use logrus to log a fatal
// message but also needs to gracefully shutdown. An example usecase could be
// closing database connections, or sending a alert that the application is
// closing.
func RegisterExitHandler(handler func()) {
handlers = append(handlers, handler)
}
// DeferExitHandler prepends a Logrus Exit handler to the list of handlers,
// call logrus.Exit to invoke all handlers. The handlers will also be invoked when
// any Fatal log entry is made.
//
// This method is useful when a caller wishes to use logrus to log a fatal
// message but also needs to gracefully shutdown. An example usecase could be
// closing database connections, or sending a alert that the application is
// closing.
func DeferExitHandler(handler func()) {
handlers = append([]func(){handler}, handlers...)
}

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version: "{build}"
platform: x64
clone_folder: c:\gopath\src\github.com\sirupsen\logrus
environment:
GOPATH: c:\gopath
branches:
only:
- master
install:
- set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
- go version
build_script:
- go get -t
- go test

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package logrus
import (
"bytes"
"sync"
)
var (
bufferPool BufferPool
)
type BufferPool interface {
Put(*bytes.Buffer)
Get() *bytes.Buffer
}
type defaultPool struct {
pool *sync.Pool
}
func (p *defaultPool) Put(buf *bytes.Buffer) {
p.pool.Put(buf)
}
func (p *defaultPool) Get() *bytes.Buffer {
return p.pool.Get().(*bytes.Buffer)
}
// SetBufferPool allows to replace the default logrus buffer pool
// to better meets the specific needs of an application.
func SetBufferPool(bp BufferPool) {
bufferPool = bp
}
func init() {
SetBufferPool(&defaultPool{
pool: &sync.Pool{
New: func() interface{} {
return new(bytes.Buffer)
},
},
})
}

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/*
Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
The simplest way to use Logrus is simply the package-level exported logger:
package main
import (
log "github.com/sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"number": 1,
"size": 10,
}).Info("A walrus appears")
}
Output:
time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
For a full guide visit https://github.com/sirupsen/logrus
*/
package logrus

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package logrus
import (
"bytes"
"context"
"fmt"
"os"
"reflect"
"runtime"
"strings"
"sync"
"time"
)
var (
// qualified package name, cached at first use
logrusPackage string
// Positions in the call stack when tracing to report the calling method
minimumCallerDepth int
// Used for caller information initialisation
callerInitOnce sync.Once
)
const (
maximumCallerDepth int = 25
knownLogrusFrames int = 4
)
func init() {
// start at the bottom of the stack before the package-name cache is primed
minimumCallerDepth = 1
}
// Defines the key when adding errors using WithError.
var ErrorKey = "error"
// An entry is the final or intermediate Logrus logging entry. It contains all
// the fields passed with WithField{,s}. It's finally logged when Trace, Debug,
// Info, Warn, Error, Fatal or Panic is called on it. These objects can be
// reused and passed around as much as you wish to avoid field duplication.
type Entry struct {
Logger *Logger
// Contains all the fields set by the user.
Data Fields
// Time at which the log entry was created
Time time.Time
// Level the log entry was logged at: Trace, Debug, Info, Warn, Error, Fatal or Panic
// This field will be set on entry firing and the value will be equal to the one in Logger struct field.
Level Level
// Calling method, with package name
Caller *runtime.Frame
// Message passed to Trace, Debug, Info, Warn, Error, Fatal or Panic
Message string
// When formatter is called in entry.log(), a Buffer may be set to entry
Buffer *bytes.Buffer
// Contains the context set by the user. Useful for hook processing etc.
Context context.Context
// err may contain a field formatting error
err string
}
func NewEntry(logger *Logger) *Entry {
return &Entry{
Logger: logger,
// Default is three fields, plus one optional. Give a little extra room.
Data: make(Fields, 6),
}
}
func (entry *Entry) Dup() *Entry {
data := make(Fields, len(entry.Data))
for k, v := range entry.Data {
data[k] = v
}
return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, Context: entry.Context, err: entry.err}
}
// Returns the bytes representation of this entry from the formatter.
func (entry *Entry) Bytes() ([]byte, error) {
return entry.Logger.Formatter.Format(entry)
}
// Returns the string representation from the reader and ultimately the
// formatter.
func (entry *Entry) String() (string, error) {
serialized, err := entry.Bytes()
if err != nil {
return "", err
}
str := string(serialized)
return str, nil
}
// Add an error as single field (using the key defined in ErrorKey) to the Entry.
func (entry *Entry) WithError(err error) *Entry {
return entry.WithField(ErrorKey, err)
}
// Add a context to the Entry.
func (entry *Entry) WithContext(ctx context.Context) *Entry {
dataCopy := make(Fields, len(entry.Data))
for k, v := range entry.Data {
dataCopy[k] = v
}
return &Entry{Logger: entry.Logger, Data: dataCopy, Time: entry.Time, err: entry.err, Context: ctx}
}
// Add a single field to the Entry.
func (entry *Entry) WithField(key string, value interface{}) *Entry {
return entry.WithFields(Fields{key: value})
}
// Add a map of fields to the Entry.
func (entry *Entry) WithFields(fields Fields) *Entry {
data := make(Fields, len(entry.Data)+len(fields))
for k, v := range entry.Data {
data[k] = v
}
fieldErr := entry.err
for k, v := range fields {
isErrField := false
if t := reflect.TypeOf(v); t != nil {
switch {
case t.Kind() == reflect.Func, t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Func:
isErrField = true
}
}
if isErrField {
tmp := fmt.Sprintf("can not add field %q", k)
if fieldErr != "" {
fieldErr = entry.err + ", " + tmp
} else {
fieldErr = tmp
}
} else {
data[k] = v
}
}
return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, err: fieldErr, Context: entry.Context}
}
// Overrides the time of the Entry.
func (entry *Entry) WithTime(t time.Time) *Entry {
dataCopy := make(Fields, len(entry.Data))
for k, v := range entry.Data {
dataCopy[k] = v
}
return &Entry{Logger: entry.Logger, Data: dataCopy, Time: t, err: entry.err, Context: entry.Context}
}
// getPackageName reduces a fully qualified function name to the package name
// There really ought to be to be a better way...
func getPackageName(f string) string {
for {
lastPeriod := strings.LastIndex(f, ".")
lastSlash := strings.LastIndex(f, "/")
if lastPeriod > lastSlash {
f = f[:lastPeriod]
} else {
break
}
}
return f
}
// getCaller retrieves the name of the first non-logrus calling function
func getCaller() *runtime.Frame {
// cache this package's fully-qualified name
callerInitOnce.Do(func() {
pcs := make([]uintptr, maximumCallerDepth)
_ = runtime.Callers(0, pcs)
// dynamic get the package name and the minimum caller depth
for i := 0; i < maximumCallerDepth; i++ {
funcName := runtime.FuncForPC(pcs[i]).Name()
if strings.Contains(funcName, "getCaller") {
logrusPackage = getPackageName(funcName)
break
}
}
minimumCallerDepth = knownLogrusFrames
})
// Restrict the lookback frames to avoid runaway lookups
pcs := make([]uintptr, maximumCallerDepth)
depth := runtime.Callers(minimumCallerDepth, pcs)
frames := runtime.CallersFrames(pcs[:depth])
for f, again := frames.Next(); again; f, again = frames.Next() {
pkg := getPackageName(f.Function)
// If the caller isn't part of this package, we're done
if pkg != logrusPackage && (f.File[len(f.File)-15:] != "logger_proxy.go") { //sanek
return &f //nolint:scopelint
}
}
// if we got here, we failed to find the caller's context
return nil
}
func (entry Entry) HasCaller() (has bool) {
return entry.Logger != nil &&
entry.Logger.ReportCaller &&
entry.Caller != nil
}
func (entry *Entry) log(level Level, msg string) {
var buffer *bytes.Buffer
newEntry := entry.Dup()
if newEntry.Time.IsZero() {
newEntry.Time = time.Now()
}
newEntry.Level = level
newEntry.Message = msg
newEntry.Logger.mu.Lock()
reportCaller := newEntry.Logger.ReportCaller
bufPool := newEntry.getBufferPool()
newEntry.Logger.mu.Unlock()
if reportCaller {
newEntry.Caller = getCaller()
}
newEntry.fireHooks()
buffer = bufPool.Get()
defer func() {
newEntry.Buffer = nil
buffer.Reset()
bufPool.Put(buffer)
}()
buffer.Reset()
newEntry.Buffer = buffer
newEntry.write()
newEntry.Buffer = nil
// To avoid Entry#log() returning a value that only would make sense for
// panic() to use in Entry#Panic(), we avoid the allocation by checking
// directly here.
if level <= PanicLevel {
panic(entry) //sanek
panic(newEntry)
}
}
func (entry *Entry) getBufferPool() (pool BufferPool) {
if entry.Logger.BufferPool != nil {
return entry.Logger.BufferPool
}
return bufferPool
}
func (entry *Entry) fireHooks() {
var tmpHooks LevelHooks
entry.Logger.mu.Lock()
tmpHooks = make(LevelHooks, len(entry.Logger.Hooks))
for k, v := range entry.Logger.Hooks {
tmpHooks[k] = v
}
entry.Logger.mu.Unlock()
err := tmpHooks.Fire(entry.Level, entry)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
}
}
func (entry *Entry) write() {
entry.Logger.mu.Lock()
defer entry.Logger.mu.Unlock()
serialized, err := entry.Logger.Formatter.Format(entry)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
return
}
if _, err := entry.Logger.Out.Write(serialized); err != nil {
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
}
}
// Log will log a message at the level given as parameter.
// Warning: using Log at Panic or Fatal level will not respectively Panic nor Exit.
// For this behaviour Entry.Panic or Entry.Fatal should be used instead.
func (entry *Entry) Log(level Level, args ...interface{}) {
if entry.Logger.IsLevelEnabled(level) {
entry.log(level, fmt.Sprint(args...))
}
}
func (entry *Entry) Trace(args ...interface{}) {
entry.Log(TraceLevel, args...)
}
func (entry *Entry) Debug(args ...interface{}) {
entry.Log(DebugLevel, args...)
}
func (entry *Entry) Print(args ...interface{}) {
entry.Info(args...)
}
func (entry *Entry) Info(args ...interface{}) {
entry.Log(InfoLevel, args...)
}
func (entry *Entry) Warn(args ...interface{}) {
entry.Log(WarnLevel, args...)
}
func (entry *Entry) Warning(args ...interface{}) {
entry.Warn(args...)
}
func (entry *Entry) Error(args ...interface{}) {
entry.Log(ErrorLevel, args...)
}
func (entry *Entry) Fatal(args ...interface{}) {
entry.Log(FatalLevel, args...)
entry.Logger.Exit(1)
}
func (entry *Entry) Panic(args ...interface{}) {
entry.Log(PanicLevel, args...)
}
// Entry Printf family functions
func (entry *Entry) Logf(level Level, format string, args ...interface{}) {
if entry.Logger.IsLevelEnabled(level) {
entry.Log(level, fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Tracef(format string, args ...interface{}) {
entry.Logf(TraceLevel, format, args...)
}
func (entry *Entry) Debugf(format string, args ...interface{}) {
entry.Logf(DebugLevel, format, args...)
}
func (entry *Entry) Infof(format string, args ...interface{}) {
entry.Logf(InfoLevel, format, args...)
}
func (entry *Entry) Printf(format string, args ...interface{}) {
entry.Infof(format, args...)
}
func (entry *Entry) Warnf(format string, args ...interface{}) {
entry.Logf(WarnLevel, format, args...)
}
func (entry *Entry) Warningf(format string, args ...interface{}) {
entry.Warnf(format, args...)
}
func (entry *Entry) Errorf(format string, args ...interface{}) {
entry.Logf(ErrorLevel, format, args...)
}
func (entry *Entry) Fatalf(format string, args ...interface{}) {
entry.Logf(FatalLevel, format, args...)
entry.Logger.Exit(1)
}
func (entry *Entry) Panicf(format string, args ...interface{}) {
entry.Logf(PanicLevel, format, args...)
}
// Entry Println family functions
func (entry *Entry) Logln(level Level, args ...interface{}) {
if entry.Logger.IsLevelEnabled(level) {
entry.Log(level, entry.sprintlnn(args...))
}
}
func (entry *Entry) Traceln(args ...interface{}) {
entry.Logln(TraceLevel, args...)
}
func (entry *Entry) Debugln(args ...interface{}) {
entry.Logln(DebugLevel, args...)
}
func (entry *Entry) Infoln(args ...interface{}) {
entry.Logln(InfoLevel, args...)
}
func (entry *Entry) Println(args ...interface{}) {
entry.Infoln(args...)
}
func (entry *Entry) Warnln(args ...interface{}) {
entry.Logln(WarnLevel, args...)
}
func (entry *Entry) Warningln(args ...interface{}) {
entry.Warnln(args...)
}
func (entry *Entry) Errorln(args ...interface{}) {
entry.Logln(ErrorLevel, args...)
}
func (entry *Entry) Fatalln(args ...interface{}) {
entry.Logln(FatalLevel, args...)
entry.Logger.Exit(1)
}
func (entry *Entry) Panicln(args ...interface{}) {
entry.Logln(PanicLevel, args...)
}
// Sprintlnn => Sprint no newline. This is to get the behavior of how
// fmt.Sprintln where spaces are always added between operands, regardless of
// their type. Instead of vendoring the Sprintln implementation to spare a
// string allocation, we do the simplest thing.
func (entry *Entry) sprintlnn(args ...interface{}) string {
msg := fmt.Sprintln(args...)
return msg[:len(msg)-1]
}

270
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package logrus
import (
"context"
"io"
"time"
)
var (
// std is the name of the standard logger in stdlib `log`
std = New()
)
func StandardLogger() *Logger {
return std
}
// SetOutput sets the standard logger output.
func SetOutput(out io.Writer) {
std.SetOutput(out)
}
// SetFormatter sets the standard logger formatter.
func SetFormatter(formatter Formatter) {
std.SetFormatter(formatter)
}
// SetReportCaller sets whether the standard logger will include the calling
// method as a field.
func SetReportCaller(include bool) {
std.SetReportCaller(include)
}
// SetLevel sets the standard logger level.
func SetLevel(level Level) {
std.SetLevel(level)
}
// GetLevel returns the standard logger level.
func GetLevel() Level {
return std.GetLevel()
}
// IsLevelEnabled checks if the log level of the standard logger is greater than the level param
func IsLevelEnabled(level Level) bool {
return std.IsLevelEnabled(level)
}
// AddHook adds a hook to the standard logger hooks.
func AddHook(hook Hook) {
std.AddHook(hook)
}
// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
func WithError(err error) *Entry {
return std.WithField(ErrorKey, err)
}
// WithContext creates an entry from the standard logger and adds a context to it.
func WithContext(ctx context.Context) *Entry {
return std.WithContext(ctx)
}
// WithField creates an entry from the standard logger and adds a field to
// it. If you want multiple fields, use `WithFields`.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithField(key string, value interface{}) *Entry {
return std.WithField(key, value)
}
// WithFields creates an entry from the standard logger and adds multiple
// fields to it. This is simply a helper for `WithField`, invoking it
// once for each field.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithFields(fields Fields) *Entry {
return std.WithFields(fields)
}
// WithTime creates an entry from the standard logger and overrides the time of
// logs generated with it.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithTime(t time.Time) *Entry {
return std.WithTime(t)
}
// Trace logs a message at level Trace on the standard logger.
func Trace(args ...interface{}) {
std.Trace(args...)
}
// Debug logs a message at level Debug on the standard logger.
func Debug(args ...interface{}) {
std.Debug(args...)
}
// Print logs a message at level Info on the standard logger.
func Print(args ...interface{}) {
std.Print(args...)
}
// Info logs a message at level Info on the standard logger.
func Info(args ...interface{}) {
std.Info(args...)
}
// Warn logs a message at level Warn on the standard logger.
func Warn(args ...interface{}) {
std.Warn(args...)
}
// Warning logs a message at level Warn on the standard logger.
func Warning(args ...interface{}) {
std.Warning(args...)
}
// Error logs a message at level Error on the standard logger.
func Error(args ...interface{}) {
std.Error(args...)
}
// Panic logs a message at level Panic on the standard logger.
func Panic(args ...interface{}) {
std.Panic(args...)
}
// Fatal logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
func Fatal(args ...interface{}) {
std.Fatal(args...)
}
// TraceFn logs a message from a func at level Trace on the standard logger.
func TraceFn(fn LogFunction) {
std.TraceFn(fn)
}
// DebugFn logs a message from a func at level Debug on the standard logger.
func DebugFn(fn LogFunction) {
std.DebugFn(fn)
}
// PrintFn logs a message from a func at level Info on the standard logger.
func PrintFn(fn LogFunction) {
std.PrintFn(fn)
}
// InfoFn logs a message from a func at level Info on the standard logger.
func InfoFn(fn LogFunction) {
std.InfoFn(fn)
}
// WarnFn logs a message from a func at level Warn on the standard logger.
func WarnFn(fn LogFunction) {
std.WarnFn(fn)
}
// WarningFn logs a message from a func at level Warn on the standard logger.
func WarningFn(fn LogFunction) {
std.WarningFn(fn)
}
// ErrorFn logs a message from a func at level Error on the standard logger.
func ErrorFn(fn LogFunction) {
std.ErrorFn(fn)
}
// PanicFn logs a message from a func at level Panic on the standard logger.
func PanicFn(fn LogFunction) {
std.PanicFn(fn)
}
// FatalFn logs a message from a func at level Fatal on the standard logger then the process will exit with status set to 1.
func FatalFn(fn LogFunction) {
std.FatalFn(fn)
}
// Tracef logs a message at level Trace on the standard logger.
func Tracef(format string, args ...interface{}) {
std.Tracef(format, args...)
}
// Debugf logs a message at level Debug on the standard logger.
func Debugf(format string, args ...interface{}) {
std.Debugf(format, args...)
}
// Printf logs a message at level Info on the standard logger.
func Printf(format string, args ...interface{}) {
std.Printf(format, args...)
}
// Infof logs a message at level Info on the standard logger.
func Infof(format string, args ...interface{}) {
std.Infof(format, args...)
}
// Warnf logs a message at level Warn on the standard logger.
func Warnf(format string, args ...interface{}) {
std.Warnf(format, args...)
}
// Warningf logs a message at level Warn on the standard logger.
func Warningf(format string, args ...interface{}) {
std.Warningf(format, args...)
}
// Errorf logs a message at level Error on the standard logger.
func Errorf(format string, args ...interface{}) {
std.Errorf(format, args...)
}
// Panicf logs a message at level Panic on the standard logger.
func Panicf(format string, args ...interface{}) {
std.Panicf(format, args...)
}
// Fatalf logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
func Fatalf(format string, args ...interface{}) {
std.Fatalf(format, args...)
}
// Traceln logs a message at level Trace on the standard logger.
func Traceln(args ...interface{}) {
std.Traceln(args...)
}
// Debugln logs a message at level Debug on the standard logger.
func Debugln(args ...interface{}) {
std.Debugln(args...)
}
// Println logs a message at level Info on the standard logger.
func Println(args ...interface{}) {
std.Println(args...)
}
// Infoln logs a message at level Info on the standard logger.
func Infoln(args ...interface{}) {
std.Infoln(args...)
}
// Warnln logs a message at level Warn on the standard logger.
func Warnln(args ...interface{}) {
std.Warnln(args...)
}
// Warningln logs a message at level Warn on the standard logger.
func Warningln(args ...interface{}) {
std.Warningln(args...)
}
// Errorln logs a message at level Error on the standard logger.
func Errorln(args ...interface{}) {
std.Errorln(args...)
}
// Panicln logs a message at level Panic on the standard logger.
func Panicln(args ...interface{}) {
std.Panicln(args...)
}
// Fatalln logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
func Fatalln(args ...interface{}) {
std.Fatalln(args...)
}

78
vendor/github.com/ManyakRus/logrus/formatter.go generated vendored Normal file
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package logrus
import "time"
// Default key names for the default fields
const (
defaultTimestampFormat = time.RFC3339
FieldKeyMsg = "msg"
FieldKeyLevel = "level"
FieldKeyTime = "time"
FieldKeyLogrusError = "logrus_error"
FieldKeyFunc = "func"
FieldKeyFile = "file"
)
// The Formatter interface is used to implement a custom Formatter. It takes an
// `Entry`. It exposes all the fields, including the default ones:
//
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
// * `entry.Data["time"]`. The timestamp.
// * `entry.Data["level"]. The level the entry was logged at.
//
// Any additional fields added with `WithField` or `WithFields` are also in
// `entry.Data`. Format is expected to return an array of bytes which are then
// logged to `logger.Out`.
type Formatter interface {
Format(*Entry) ([]byte, error)
}
// This is to not silently overwrite `time`, `msg`, `func` and `level` fields when
// dumping it. If this code wasn't there doing:
//
// logrus.WithField("level", 1).Info("hello")
//
// Would just silently drop the user provided level. Instead with this code
// it'll logged as:
//
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
//
// It's not exported because it's still using Data in an opinionated way. It's to
// avoid code duplication between the two default formatters.
func prefixFieldClashes(data Fields, fieldMap FieldMap, reportCaller bool) {
timeKey := fieldMap.resolve(FieldKeyTime)
if t, ok := data[timeKey]; ok {
data["fields."+timeKey] = t
delete(data, timeKey)
}
msgKey := fieldMap.resolve(FieldKeyMsg)
if m, ok := data[msgKey]; ok {
data["fields."+msgKey] = m
delete(data, msgKey)
}
levelKey := fieldMap.resolve(FieldKeyLevel)
if l, ok := data[levelKey]; ok {
data["fields."+levelKey] = l
delete(data, levelKey)
}
logrusErrKey := fieldMap.resolve(FieldKeyLogrusError)
if l, ok := data[logrusErrKey]; ok {
data["fields."+logrusErrKey] = l
delete(data, logrusErrKey)
}
// If reportCaller is not set, 'func' will not conflict.
if reportCaller {
funcKey := fieldMap.resolve(FieldKeyFunc)
if l, ok := data[funcKey]; ok {
data["fields."+funcKey] = l
}
fileKey := fieldMap.resolve(FieldKeyFile)
if l, ok := data[fileKey]; ok {
data["fields."+fileKey] = l
}
}
}

34
vendor/github.com/ManyakRus/logrus/hooks.go generated vendored Normal file
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package logrus
// A hook to be fired when logging on the logging levels returned from
// `Levels()` on your implementation of the interface. Note that this is not
// fired in a goroutine or a channel with workers, you should handle such
// functionality yourself if your call is non-blocking and you don't wish for
// the logging calls for levels returned from `Levels()` to block.
type Hook interface {
Levels() []Level
Fire(*Entry) error
}
// Internal type for storing the hooks on a logger instance.
type LevelHooks map[Level][]Hook
// Add a hook to an instance of logger. This is called with
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
func (hooks LevelHooks) Add(hook Hook) {
for _, level := range hook.Levels() {
hooks[level] = append(hooks[level], hook)
}
}
// Fire all the hooks for the passed level. Used by `entry.log` to fire
// appropriate hooks for a log entry.
func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
for _, hook := range hooks[level] {
if err := hook.Fire(entry); err != nil {
return err
}
}
return nil
}

128
vendor/github.com/ManyakRus/logrus/json_formatter.go generated vendored Normal file
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package logrus
import (
"bytes"
"encoding/json"
"fmt"
"runtime"
)
type fieldKey string
// FieldMap allows customization of the key names for default fields.
type FieldMap map[fieldKey]string
func (f FieldMap) resolve(key fieldKey) string {
if k, ok := f[key]; ok {
return k
}
return string(key)
}
// JSONFormatter formats logs into parsable json
type JSONFormatter struct {
// TimestampFormat sets the format used for marshaling timestamps.
// The format to use is the same than for time.Format or time.Parse from the standard
// library.
// The standard Library already provides a set of predefined format.
TimestampFormat string
// DisableTimestamp allows disabling automatic timestamps in output
DisableTimestamp bool
// DisableHTMLEscape allows disabling html escaping in output
DisableHTMLEscape bool
// DataKey allows users to put all the log entry parameters into a nested dictionary at a given key.
DataKey string
// FieldMap allows users to customize the names of keys for default fields.
// As an example:
// formatter := &JSONFormatter{
// FieldMap: FieldMap{
// FieldKeyTime: "@timestamp",
// FieldKeyLevel: "@level",
// FieldKeyMsg: "@message",
// FieldKeyFunc: "@caller",
// },
// }
FieldMap FieldMap
// CallerPrettyfier can be set by the user to modify the content
// of the function and file keys in the json data when ReportCaller is
// activated. If any of the returned value is the empty string the
// corresponding key will be removed from json fields.
CallerPrettyfier func(*runtime.Frame) (function string, file string)
// PrettyPrint will indent all json logs
PrettyPrint bool
}
// Format renders a single log entry
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields, len(entry.Data)+4)
for k, v := range entry.Data {
switch v := v.(type) {
case error:
// Otherwise errors are ignored by `encoding/json`
// https://github.com/sirupsen/logrus/issues/137
data[k] = v.Error()
default:
data[k] = v
}
}
if f.DataKey != "" {
newData := make(Fields, 4)
newData[f.DataKey] = data
data = newData
}
prefixFieldClashes(data, f.FieldMap, entry.HasCaller())
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = defaultTimestampFormat
}
if entry.err != "" {
data[f.FieldMap.resolve(FieldKeyLogrusError)] = entry.err
}
if !f.DisableTimestamp {
data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
}
data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
if entry.HasCaller() {
funcVal := entry.Caller.Function
fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
if f.CallerPrettyfier != nil {
funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
}
if funcVal != "" {
data[f.FieldMap.resolve(FieldKeyFunc)] = funcVal
}
if fileVal != "" {
data[f.FieldMap.resolve(FieldKeyFile)] = fileVal
}
}
var b *bytes.Buffer
if entry.Buffer != nil {
b = entry.Buffer
} else {
b = &bytes.Buffer{}
}
encoder := json.NewEncoder(b)
encoder.SetEscapeHTML(!f.DisableHTMLEscape)
if f.PrettyPrint {
encoder.SetIndent("", " ")
}
if err := encoder.Encode(data); err != nil {
return nil, fmt.Errorf("failed to marshal fields to JSON, %w", err)
}
return b.Bytes(), nil
}

417
vendor/github.com/ManyakRus/logrus/logger.go generated vendored Normal file
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package logrus
import (
"context"
"io"
"os"
"sync"
"sync/atomic"
"time"
)
// LogFunction For big messages, it can be more efficient to pass a function
// and only call it if the log level is actually enables rather than
// generating the log message and then checking if the level is enabled
type LogFunction func() []interface{}
type Logger struct {
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
// file, or leave it default which is `os.Stderr`. You can also set this to
// something more adventurous, such as logging to Kafka.
Out io.Writer
// Hooks for the logger instance. These allow firing events based on logging
// levels and log entries. For example, to send errors to an error tracking
// service, log to StatsD or dump the core on fatal errors.
Hooks LevelHooks
// All log entries pass through the formatter before logged to Out. The
// included formatters are `TextFormatter` and `JSONFormatter` for which
// TextFormatter is the default. In development (when a TTY is attached) it
// logs with colors, but to a file it wouldn't. You can easily implement your
// own that implements the `Formatter` interface, see the `README` or included
// formatters for examples.
Formatter Formatter
// Flag for whether to log caller info (off by default)
ReportCaller bool
// The logging level the logger should log at. This is typically (and defaults
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
// logged.
Level Level
// Used to sync writing to the log. Locking is enabled by Default
mu MutexWrap
// Reusable empty entry
entryPool sync.Pool
// Function to exit the application, defaults to `os.Exit()`
ExitFunc exitFunc
// The buffer pool used to format the log. If it is nil, the default global
// buffer pool will be used.
BufferPool BufferPool
}
type exitFunc func(int)
type MutexWrap struct {
lock sync.Mutex
disabled bool
}
func (mw *MutexWrap) Lock() {
if !mw.disabled {
mw.lock.Lock()
}
}
func (mw *MutexWrap) Unlock() {
if !mw.disabled {
mw.lock.Unlock()
}
}
func (mw *MutexWrap) Disable() {
mw.disabled = true
}
// Creates a new logger. Configuration should be set by changing `Formatter`,
// `Out` and `Hooks` directly on the default logger instance. You can also just
// instantiate your own:
//
// var log = &logrus.Logger{
// Out: os.Stderr,
// Formatter: new(logrus.TextFormatter),
// Hooks: make(logrus.LevelHooks),
// Level: logrus.DebugLevel,
// }
//
// It's recommended to make this a global instance called `log`.
func New() *Logger {
return &Logger{
Out: os.Stderr,
Formatter: new(TextFormatter),
Hooks: make(LevelHooks),
Level: InfoLevel,
ExitFunc: os.Exit,
ReportCaller: false,
}
}
func (logger *Logger) newEntry() *Entry {
entry, ok := logger.entryPool.Get().(*Entry)
if ok {
return entry
}
return NewEntry(logger)
}
func (logger *Logger) releaseEntry(entry *Entry) {
entry.Data = map[string]interface{}{}
logger.entryPool.Put(entry)
}
// WithField allocates a new entry and adds a field to it.
// Debug, Print, Info, Warn, Error, Fatal or Panic must be then applied to
// this new returned entry.
// If you want multiple fields, use `WithFields`.
func (logger *Logger) WithField(key string, value interface{}) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithField(key, value)
}
// Adds a struct of fields to the log entry. All it does is call `WithField` for
// each `Field`.
func (logger *Logger) WithFields(fields Fields) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithFields(fields)
}
// Add an error as single field to the log entry. All it does is call
// `WithError` for the given `error`.
func (logger *Logger) WithError(err error) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithError(err)
}
// Add a context to the log entry.
func (logger *Logger) WithContext(ctx context.Context) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithContext(ctx)
}
// Overrides the time of the log entry.
func (logger *Logger) WithTime(t time.Time) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithTime(t)
}
func (logger *Logger) Logf(level Level, format string, args ...interface{}) {
if logger.IsLevelEnabled(level) {
entry := logger.newEntry()
entry.Logf(level, format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Tracef(format string, args ...interface{}) {
logger.Logf(TraceLevel, format, args...)
}
func (logger *Logger) Debugf(format string, args ...interface{}) {
logger.Logf(DebugLevel, format, args...)
}
func (logger *Logger) Infof(format string, args ...interface{}) {
logger.Logf(InfoLevel, format, args...)
}
func (logger *Logger) Printf(format string, args ...interface{}) {
entry := logger.newEntry()
entry.Printf(format, args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warnf(format string, args ...interface{}) {
logger.Logf(WarnLevel, format, args...)
}
func (logger *Logger) Warningf(format string, args ...interface{}) {
logger.Warnf(format, args...)
}
func (logger *Logger) Errorf(format string, args ...interface{}) {
logger.Logf(ErrorLevel, format, args...)
}
func (logger *Logger) Fatalf(format string, args ...interface{}) {
logger.Logf(FatalLevel, format, args...)
logger.Exit(1)
}
func (logger *Logger) Panicf(format string, args ...interface{}) {
logger.Logf(PanicLevel, format, args...)
}
// Log will log a message at the level given as parameter.
// Warning: using Log at Panic or Fatal level will not respectively Panic nor Exit.
// For this behaviour Logger.Panic or Logger.Fatal should be used instead.
func (logger *Logger) Log(level Level, args ...interface{}) {
if logger.IsLevelEnabled(level) {
entry := logger.newEntry()
entry.Log(level, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) LogFn(level Level, fn LogFunction) {
if logger.IsLevelEnabled(level) {
entry := logger.newEntry()
entry.Log(level, fn()...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Trace(args ...interface{}) {
logger.Log(TraceLevel, args...)
}
func (logger *Logger) Debug(args ...interface{}) {
logger.Log(DebugLevel, args...)
}
func (logger *Logger) Info(args ...interface{}) {
logger.Log(InfoLevel, args...)
}
func (logger *Logger) Print(args ...interface{}) {
entry := logger.newEntry()
entry.Print(args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warn(args ...interface{}) {
logger.Log(WarnLevel, args...)
}
func (logger *Logger) Warning(args ...interface{}) {
logger.Warn(args...)
}
func (logger *Logger) Error(args ...interface{}) {
logger.Log(ErrorLevel, args...)
}
func (logger *Logger) Fatal(args ...interface{}) {
logger.Log(FatalLevel, args...)
logger.Exit(1)
}
func (logger *Logger) Panic(args ...interface{}) {
logger.Log(PanicLevel, args...)
}
func (logger *Logger) TraceFn(fn LogFunction) {
logger.LogFn(TraceLevel, fn)
}
func (logger *Logger) DebugFn(fn LogFunction) {
logger.LogFn(DebugLevel, fn)
}
func (logger *Logger) InfoFn(fn LogFunction) {
logger.LogFn(InfoLevel, fn)
}
func (logger *Logger) PrintFn(fn LogFunction) {
entry := logger.newEntry()
entry.Print(fn()...)
logger.releaseEntry(entry)
}
func (logger *Logger) WarnFn(fn LogFunction) {
logger.LogFn(WarnLevel, fn)
}
func (logger *Logger) WarningFn(fn LogFunction) {
logger.WarnFn(fn)
}
func (logger *Logger) ErrorFn(fn LogFunction) {
logger.LogFn(ErrorLevel, fn)
}
func (logger *Logger) FatalFn(fn LogFunction) {
logger.LogFn(FatalLevel, fn)
logger.Exit(1)
}
func (logger *Logger) PanicFn(fn LogFunction) {
logger.LogFn(PanicLevel, fn)
}
func (logger *Logger) Logln(level Level, args ...interface{}) {
if logger.IsLevelEnabled(level) {
entry := logger.newEntry()
entry.Logln(level, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Traceln(args ...interface{}) {
logger.Logln(TraceLevel, args...)
}
func (logger *Logger) Debugln(args ...interface{}) {
logger.Logln(DebugLevel, args...)
}
func (logger *Logger) Infoln(args ...interface{}) {
logger.Logln(InfoLevel, args...)
}
func (logger *Logger) Println(args ...interface{}) {
entry := logger.newEntry()
entry.Println(args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warnln(args ...interface{}) {
logger.Logln(WarnLevel, args...)
}
func (logger *Logger) Warningln(args ...interface{}) {
logger.Warnln(args...)
}
func (logger *Logger) Errorln(args ...interface{}) {
logger.Logln(ErrorLevel, args...)
}
func (logger *Logger) Fatalln(args ...interface{}) {
logger.Logln(FatalLevel, args...)
logger.Exit(1)
}
func (logger *Logger) Panicln(args ...interface{}) {
logger.Logln(PanicLevel, args...)
}
func (logger *Logger) Exit(code int) {
runHandlers()
if logger.ExitFunc == nil {
logger.ExitFunc = os.Exit
}
logger.ExitFunc(code)
}
//When file is opened with appending mode, it's safe to
//write concurrently to a file (within 4k message on Linux).
//In these cases user can choose to disable the lock.
func (logger *Logger) SetNoLock() {
logger.mu.Disable()
}
func (logger *Logger) level() Level {
return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
}
// SetLevel sets the logger level.
func (logger *Logger) SetLevel(level Level) {
atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
}
// GetLevel returns the logger level.
func (logger *Logger) GetLevel() Level {
return logger.level()
}
// AddHook adds a hook to the logger hooks.
func (logger *Logger) AddHook(hook Hook) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.Hooks.Add(hook)
}
// IsLevelEnabled checks if the log level of the logger is greater than the level param
func (logger *Logger) IsLevelEnabled(level Level) bool {
return logger.level() >= level
}
// SetFormatter sets the logger formatter.
func (logger *Logger) SetFormatter(formatter Formatter) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.Formatter = formatter
}
// SetOutput sets the logger output.
func (logger *Logger) SetOutput(output io.Writer) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.Out = output
}
func (logger *Logger) SetReportCaller(reportCaller bool) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.ReportCaller = reportCaller
}
// ReplaceHooks replaces the logger hooks and returns the old ones
func (logger *Logger) ReplaceHooks(hooks LevelHooks) LevelHooks {
logger.mu.Lock()
oldHooks := logger.Hooks
logger.Hooks = hooks
logger.mu.Unlock()
return oldHooks
}
// SetBufferPool sets the logger buffer pool.
func (logger *Logger) SetBufferPool(pool BufferPool) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.BufferPool = pool
}

186
vendor/github.com/ManyakRus/logrus/logrus.go generated vendored Normal file
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package logrus
import (
"fmt"
"log"
"strings"
)
// Fields type, used to pass to `WithFields`.
type Fields map[string]interface{}
// Level type
type Level uint32
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
func (level Level) String() string {
if b, err := level.MarshalText(); err == nil {
return string(b)
} else {
return "unknown"
}
}
// ParseLevel takes a string level and returns the Logrus log level constant.
func ParseLevel(lvl string) (Level, error) {
switch strings.ToLower(lvl) {
case "panic":
return PanicLevel, nil
case "fatal":
return FatalLevel, nil
case "error":
return ErrorLevel, nil
case "warn", "warning":
return WarnLevel, nil
case "info":
return InfoLevel, nil
case "debug":
return DebugLevel, nil
case "trace":
return TraceLevel, nil
}
var l Level
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
}
// UnmarshalText implements encoding.TextUnmarshaler.
func (level *Level) UnmarshalText(text []byte) error {
l, err := ParseLevel(string(text))
if err != nil {
return err
}
*level = l
return nil
}
func (level Level) MarshalText() ([]byte, error) {
switch level {
case TraceLevel:
return []byte("trace"), nil
case DebugLevel:
return []byte("debug"), nil
case InfoLevel:
return []byte("info"), nil
case WarnLevel:
return []byte("warning"), nil
case ErrorLevel:
return []byte("error"), nil
case FatalLevel:
return []byte("fatal"), nil
case PanicLevel:
return []byte("panic"), nil
}
return nil, fmt.Errorf("not a valid logrus level %d", level)
}
// A constant exposing all logging levels
var AllLevels = []Level{
PanicLevel,
FatalLevel,
ErrorLevel,
WarnLevel,
InfoLevel,
DebugLevel,
TraceLevel,
}
// These are the different logging levels. You can set the logging level to log
// on your instance of logger, obtained with `logrus.New()`.
const (
// PanicLevel level, highest level of severity. Logs and then calls panic with the
// message passed to Debug, Info, ...
PanicLevel Level = iota
// FatalLevel level. Logs and then calls `logger.Exit(1)`. It will exit even if the
// logging level is set to Panic.
FatalLevel
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
// Commonly used for hooks to send errors to an error tracking service.
ErrorLevel
// WarnLevel level. Non-critical entries that deserve eyes.
WarnLevel
// InfoLevel level. General operational entries about what's going on inside the
// application.
InfoLevel
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
DebugLevel
// TraceLevel level. Designates finer-grained informational events than the Debug.
TraceLevel
)
// Won't compile if StdLogger can't be realized by a log.Logger
var (
_ StdLogger = &log.Logger{}
_ StdLogger = &Entry{}
_ StdLogger = &Logger{}
)
// StdLogger is what your logrus-enabled library should take, that way
// it'll accept a stdlib logger and a logrus logger. There's no standard
// interface, this is the closest we get, unfortunately.
type StdLogger interface {
Print(...interface{})
Printf(string, ...interface{})
Println(...interface{})
Fatal(...interface{})
Fatalf(string, ...interface{})
Fatalln(...interface{})
Panic(...interface{})
Panicf(string, ...interface{})
Panicln(...interface{})
}
// The FieldLogger interface generalizes the Entry and Logger types
type FieldLogger interface {
WithField(key string, value interface{}) *Entry
WithFields(fields Fields) *Entry
WithError(err error) *Entry
Debugf(format string, args ...interface{})
Infof(format string, args ...interface{})
Printf(format string, args ...interface{})
Warnf(format string, args ...interface{})
Warningf(format string, args ...interface{})
Errorf(format string, args ...interface{})
Fatalf(format string, args ...interface{})
Panicf(format string, args ...interface{})
Debug(args ...interface{})
Info(args ...interface{})
Print(args ...interface{})
Warn(args ...interface{})
Warning(args ...interface{})
Error(args ...interface{})
Fatal(args ...interface{})
Panic(args ...interface{})
Debugln(args ...interface{})
Infoln(args ...interface{})
Println(args ...interface{})
Warnln(args ...interface{})
Warningln(args ...interface{})
Errorln(args ...interface{})
Fatalln(args ...interface{})
Panicln(args ...interface{})
// IsDebugEnabled() bool
// IsInfoEnabled() bool
// IsWarnEnabled() bool
// IsErrorEnabled() bool
// IsFatalEnabled() bool
// IsPanicEnabled() bool
}
// Ext1FieldLogger (the first extension to FieldLogger) is superfluous, it is
// here for consistancy. Do not use. Use Logger or Entry instead.
type Ext1FieldLogger interface {
FieldLogger
Tracef(format string, args ...interface{})
Trace(args ...interface{})
Traceln(args ...interface{})
}

11
vendor/github.com/ManyakRus/logrus/terminal_check_appengine.go generated vendored Normal file
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// +build appengine
package logrus
import (
"io"
)
func checkIfTerminal(w io.Writer) bool {
return true
}

13
vendor/github.com/ManyakRus/logrus/terminal_check_bsd.go generated vendored Normal file
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// +build darwin dragonfly freebsd netbsd openbsd
// +build !js
package logrus
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TIOCGETA
func isTerminal(fd int) bool {
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
return err == nil
}

7
vendor/github.com/ManyakRus/logrus/terminal_check_js.go generated vendored Normal file
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@ -0,0 +1,7 @@
// +build js
package logrus
func isTerminal(fd int) bool {
return false
}

11
vendor/github.com/ManyakRus/logrus/terminal_check_no_terminal.go generated vendored Normal file
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@ -0,0 +1,11 @@
// +build js nacl plan9
package logrus
import (
"io"
)
func checkIfTerminal(w io.Writer) bool {
return false
}

17
vendor/github.com/ManyakRus/logrus/terminal_check_notappengine.go generated vendored Normal file
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@ -0,0 +1,17 @@
// +build !appengine,!js,!windows,!nacl,!plan9
package logrus
import (
"io"
"os"
)
func checkIfTerminal(w io.Writer) bool {
switch v := w.(type) {
case *os.File:
return isTerminal(int(v.Fd()))
default:
return false
}
}

11
vendor/github.com/ManyakRus/logrus/terminal_check_solaris.go generated vendored Normal file
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@ -0,0 +1,11 @@
package logrus
import (
"golang.org/x/sys/unix"
)
// IsTerminal returns true if the given file descriptor is a terminal.
func isTerminal(fd int) bool {
_, err := unix.IoctlGetTermio(fd, unix.TCGETA)
return err == nil
}

13
vendor/github.com/ManyakRus/logrus/terminal_check_unix.go generated vendored Normal file
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@ -0,0 +1,13 @@
// +build linux aix zos
// +build !js
package logrus
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TCGETS
func isTerminal(fd int) bool {
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
return err == nil
}

27
vendor/github.com/ManyakRus/logrus/terminal_check_windows.go generated vendored Normal file
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// +build !appengine,!js,windows
package logrus
import (
"io"
"os"
"golang.org/x/sys/windows"
)
func checkIfTerminal(w io.Writer) bool {
switch v := w.(type) {
case *os.File:
handle := windows.Handle(v.Fd())
var mode uint32
if err := windows.GetConsoleMode(handle, &mode); err != nil {
return false
}
mode |= windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
if err := windows.SetConsoleMode(handle, mode); err != nil {
return false
}
return true
}
return false
}

339
vendor/github.com/ManyakRus/logrus/text_formatter.go generated vendored Normal file
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package logrus
import (
"bytes"
"fmt"
"os"
"runtime"
"sort"
"strconv"
"strings"
"sync"
"time"
"unicode/utf8"
)
const (
red = 31
yellow = 33
blue = 36
gray = 37
)
var baseTimestamp time.Time
func init() {
baseTimestamp = time.Now()
}
// TextFormatter formats logs into text
type TextFormatter struct {
// Set to true to bypass checking for a TTY before outputting colors.
ForceColors bool
// Force disabling colors.
DisableColors bool
// Force quoting of all values
ForceQuote bool
// DisableQuote disables quoting for all values.
// DisableQuote will have a lower priority than ForceQuote.
// If both of them are set to true, quote will be forced on all values.
DisableQuote bool
// Override coloring based on CLICOLOR and CLICOLOR_FORCE. - https://bixense.com/clicolors/
EnvironmentOverrideColors bool
// Disable timestamp logging. useful when output is redirected to logging
// system that already adds timestamps.
DisableTimestamp bool
// Enable logging the full timestamp when a TTY is attached instead of just
// the time passed since beginning of execution.
FullTimestamp bool
// TimestampFormat to use for display when a full timestamp is printed.
// The format to use is the same than for time.Format or time.Parse from the standard
// library.
// The standard Library already provides a set of predefined format.
TimestampFormat string
// The fields are sorted by default for a consistent output. For applications
// that log extremely frequently and don't use the JSON formatter this may not
// be desired.
DisableSorting bool
// The keys sorting function, when uninitialized it uses sort.Strings.
SortingFunc func([]string)
// Disables the truncation of the level text to 4 characters.
DisableLevelTruncation bool
// PadLevelText Adds padding the level text so that all the levels output at the same length
// PadLevelText is a superset of the DisableLevelTruncation option
PadLevelText bool
// QuoteEmptyFields will wrap empty fields in quotes if true
QuoteEmptyFields bool
// Whether the logger's out is to a terminal
isTerminal bool
// FieldMap allows users to customize the names of keys for default fields.
// As an example:
// formatter := &TextFormatter{
// FieldMap: FieldMap{
// FieldKeyTime: "@timestamp",
// FieldKeyLevel: "@level",
// FieldKeyMsg: "@message"}}
FieldMap FieldMap
// CallerPrettyfier can be set by the user to modify the content
// of the function and file keys in the data when ReportCaller is
// activated. If any of the returned value is the empty string the
// corresponding key will be removed from fields.
CallerPrettyfier func(*runtime.Frame) (function string, file string)
terminalInitOnce sync.Once
// The max length of the level text, generated dynamically on init
levelTextMaxLength int
}
func (f *TextFormatter) init(entry *Entry) {
if entry.Logger != nil {
f.isTerminal = checkIfTerminal(entry.Logger.Out)
}
// Get the max length of the level text
for _, level := range AllLevels {
levelTextLength := utf8.RuneCount([]byte(level.String()))
if levelTextLength > f.levelTextMaxLength {
f.levelTextMaxLength = levelTextLength
}
}
}
func (f *TextFormatter) isColored() bool {
isColored := f.ForceColors || (f.isTerminal && (runtime.GOOS != "windows"))
if f.EnvironmentOverrideColors {
switch force, ok := os.LookupEnv("CLICOLOR_FORCE"); {
case ok && force != "0":
isColored = true
case ok && force == "0", os.Getenv("CLICOLOR") == "0":
isColored = false
}
}
return isColored && !f.DisableColors
}
// Format renders a single log entry
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields)
for k, v := range entry.Data {
data[k] = v
}
prefixFieldClashes(data, f.FieldMap, entry.HasCaller())
keys := make([]string, 0, len(data))
for k := range data {
keys = append(keys, k)
}
var funcVal, fileVal string
fixedKeys := make([]string, 0, 4+len(data))
if !f.DisableTimestamp {
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyTime))
}
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLevel))
if entry.Message != "" {
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyMsg))
}
if entry.err != "" {
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLogrusError))
}
if entry.HasCaller() {
if f.CallerPrettyfier != nil {
funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
} else {
funcVal = entry.Caller.Function
fileVal = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
}
if funcVal != "" {
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFunc))
}
if fileVal != "" {
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFile))
}
}
if !f.DisableSorting {
if f.SortingFunc == nil {
sort.Strings(keys)
fixedKeys = append(fixedKeys, keys...)
} else {
if !f.isColored() {
fixedKeys = append(fixedKeys, keys...)
f.SortingFunc(fixedKeys)
} else {
f.SortingFunc(keys)
}
}
} else {
fixedKeys = append(fixedKeys, keys...)
}
var b *bytes.Buffer
if entry.Buffer != nil {
b = entry.Buffer
} else {
b = &bytes.Buffer{}
}
f.terminalInitOnce.Do(func() { f.init(entry) })
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = defaultTimestampFormat
}
if f.isColored() {
f.printColored(b, entry, keys, data, timestampFormat)
} else {
for _, key := range fixedKeys {
var value interface{}
switch {
case key == f.FieldMap.resolve(FieldKeyTime):
value = entry.Time.Format(timestampFormat)
case key == f.FieldMap.resolve(FieldKeyLevel):
value = entry.Level.String()
case key == f.FieldMap.resolve(FieldKeyMsg):
value = entry.Message
case key == f.FieldMap.resolve(FieldKeyLogrusError):
value = entry.err
case key == f.FieldMap.resolve(FieldKeyFunc) && entry.HasCaller():
value = funcVal
case key == f.FieldMap.resolve(FieldKeyFile) && entry.HasCaller():
value = fileVal
default:
value = data[key]
}
f.appendKeyValue(b, key, value)
}
}
b.WriteByte('\n')
return b.Bytes(), nil
}
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, data Fields, timestampFormat string) {
var levelColor int
switch entry.Level {
case DebugLevel, TraceLevel:
levelColor = gray
case WarnLevel:
levelColor = yellow
case ErrorLevel, FatalLevel, PanicLevel:
levelColor = red
case InfoLevel:
levelColor = blue
default:
levelColor = blue
}
levelText := strings.ToUpper(entry.Level.String())
if !f.DisableLevelTruncation && !f.PadLevelText {
levelText = levelText[0:4]
}
if f.PadLevelText {
// Generates the format string used in the next line, for example "%-6s" or "%-7s".
// Based on the max level text length.
formatString := "%-" + strconv.Itoa(f.levelTextMaxLength) + "s"
// Formats the level text by appending spaces up to the max length, for example:
// - "INFO "
// - "WARNING"
levelText = fmt.Sprintf(formatString, levelText)
}
// Remove a single newline if it already exists in the message to keep
// the behavior of logrus text_formatter the same as the stdlib log package
entry.Message = strings.TrimSuffix(entry.Message, "\n")
caller := ""
if entry.HasCaller() {
funcVal := fmt.Sprintf("%s()", entry.Caller.Function)
fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
if f.CallerPrettyfier != nil {
funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
}
if fileVal == "" {
caller = funcVal
} else if funcVal == "" {
caller = fileVal
} else {
caller = fileVal + " " + funcVal
}
}
switch {
case f.DisableTimestamp:
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m%s %-44s ", levelColor, levelText, caller, entry.Message)
case !f.FullTimestamp:
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d]%s %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), caller, entry.Message)
default:
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s]%s %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), caller, entry.Message)
}
for _, k := range keys {
v := data[k]
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
f.appendValue(b, v)
}
}
func (f *TextFormatter) needsQuoting(text string) bool {
if f.ForceQuote {
return true
}
if f.QuoteEmptyFields && len(text) == 0 {
return true
}
if f.DisableQuote {
return false
}
for _, ch := range text {
if !((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
return true
}
}
return false
}
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
if b.Len() > 0 {
b.WriteByte(' ')
}
b.WriteString(key)
b.WriteByte('=')
f.appendValue(b, value)
}
func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
stringVal, ok := value.(string)
if !ok {
stringVal = fmt.Sprint(value)
}
if !f.needsQuoting(stringVal) {
b.WriteString(stringVal)
} else {
b.WriteString(fmt.Sprintf("%q", stringVal))
}
}

70
vendor/github.com/ManyakRus/logrus/writer.go generated vendored Normal file
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package logrus
import (
"bufio"
"io"
"runtime"
)
// Writer at INFO level. See WriterLevel for details.
func (logger *Logger) Writer() *io.PipeWriter {
return logger.WriterLevel(InfoLevel)
}
// WriterLevel returns an io.Writer that can be used to write arbitrary text to
// the logger at the given log level. Each line written to the writer will be
// printed in the usual way using formatters and hooks. The writer is part of an
// io.Pipe and it is the callers responsibility to close the writer when done.
// This can be used to override the standard library logger easily.
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
return NewEntry(logger).WriterLevel(level)
}
func (entry *Entry) Writer() *io.PipeWriter {
return entry.WriterLevel(InfoLevel)
}
func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
reader, writer := io.Pipe()
var printFunc func(args ...interface{})
switch level {
case TraceLevel:
printFunc = entry.Trace
case DebugLevel:
printFunc = entry.Debug
case InfoLevel:
printFunc = entry.Info
case WarnLevel:
printFunc = entry.Warn
case ErrorLevel:
printFunc = entry.Error
case FatalLevel:
printFunc = entry.Fatal
case PanicLevel:
printFunc = entry.Panic
default:
printFunc = entry.Print
}
go entry.writerScanner(reader, printFunc)
runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
printFunc(scanner.Text())
}
if err := scanner.Err(); err != nil {
entry.Errorf("Error while reading from Writer: %s", err)
}
reader.Close()
}
func writerFinalizer(writer *io.PipeWriter) {
writer.Close()
}

44
vendor/github.com/ManyakRus/starter/config/config.go generated vendored Normal file
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// модуль для загрузки переменных окружения в структуру
package config
import (
"github.com/ManyakRus/starter/logger"
"github.com/ManyakRus/starter/micro"
"os"
"github.com/joho/godotenv"
//log "github.com/sirupsen/logrus"
//log "github.com/sirupsen/logrus"
//"gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/types"
//"gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/micro"
)
// log хранит используемый логгер
var log = logger.GetLog()
// LoadEnv - загружает переменные окружения в структуру из файла или из переменных окружения
func LoadEnv() {
dir := micro.ProgramDir()
filename := dir + ".env"
LoadEnv_from_file(filename)
}
// LoadEnv_from_file загружает переменные окружения в структуру из файла или из переменных окружения
func LoadEnv_from_file(filename string) {
err := godotenv.Load(filename)
if err != nil {
log.Debug("Can not parse .env file: ", filename, " error: "+err.Error())
} else {
log.Info("load .env from file: ", filename)
}
LOG_LEVEL := os.Getenv("LOG_LEVEL")
if LOG_LEVEL == "" {
LOG_LEVEL = "info"
}
logger.SetLevel(LOG_LEVEL)
}

52
vendor/github.com/ManyakRus/starter/contextmain/contextmain.go generated vendored Normal file
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// модуль для получения единого Context приложения
package contextmain
import (
"context"
"sync"
)
// Ctx хранит глобальный контекст программы
// не использовать
// * - чтоб можно было засунуть ссылку на чужой контекст
var Ctx *context.Context
// CancelContext - функция отмены глобального контекста
var CancelContext func()
// onceCtx - гарантирует единственное создание контеста
var onceCtx sync.Once
// lockContextMain - гарантирует единственное создание контеста
// var lockContextMain sync.Mutex
// GetContext - возвращает глобальный контекст приложения
func GetContext() context.Context {
//lockContextMain.Lock()
//defer lockContextMain.Unlock()
//
//if Ctx == nil {
// CtxBg := context.Background()
// Ctx, CancelContext = context.WithCancel(CtxBg)
//}
onceCtx.Do(func() {
CtxBg := context.Background()
var Ctx0 context.Context
Ctx0, CancelContext = context.WithCancel(CtxBg)
Ctx = &Ctx0
})
return *Ctx
}
// GetNewContext - создаёт и возвращает новый контекст приложения
func GetNewContext() context.Context {
CtxBg := context.Background()
var Ctx0 context.Context
Ctx0, CancelContext = context.WithCancel(CtxBg)
Ctx = &Ctx0
return *Ctx
}

89
vendor/github.com/ManyakRus/starter/folders/folders.go generated vendored Normal file
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@ -0,0 +1,89 @@
package folders
import (
"encoding/json"
"log"
"os"
"path"
"path/filepath"
)
type File struct {
Name string
}
type Folder struct {
FileName string
Name string
Files []*File
Folders map[string]*Folder
}
func (f *Folder) String() string {
j, _ := json.Marshal(f)
return string(j)
}
// FindFoldersTree - возвращает дерево каталогов и файлов, начиная с директории dir
func FindFoldersTree(dir string, NeedFolders, NeedFiles, NeedDot bool, exclude string) *Folder {
dir = path.Clean(dir)
var tree *Folder
var nodes = map[string]interface{}{}
var walkFun filepath.WalkFunc = func(p string, info os.FileInfo, err error) error {
if info.IsDir() {
nodes[p] = &Folder{p, path.Base(p), []*File{}, map[string]*Folder{}}
} else {
nodes[p] = &File{path.Base(p)}
}
return nil
}
err := filepath.Walk(dir, walkFun)
if err != nil {
log.Fatal(err)
}
for key, value := range nodes {
var parentFolder *Folder
if key == dir {
tree = value.(*Folder)
continue
} else {
parentFolder = nodes[path.Dir(key)].(*Folder)
}
// найдём название Папки/Файла
var Name string
switch value.(type) {
case *File:
Name = value.(*File).Name
case *Folder:
Name = value.(*Folder).Name
}
// проверка скрытые файлы с точкой
if NeedDot == false && len(Name) > 0 && Name[0:1] == "." {
continue
}
// проверка кроме exclude
if exclude != "" && len(Name) >= len(exclude) && Name[0:len(exclude)] == exclude {
continue
}
//
switch v := value.(type) {
case *File:
if NeedFiles == false {
break
}
parentFolder.Files = append(parentFolder.Files, v)
case *Folder:
if NeedFolders == false {
break
}
parentFolder.Folders[v.Name] = v
}
}
return tree
}

22
vendor/github.com/ManyakRus/starter/log/logger.go generated vendored Normal file
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// модуль создания единого логирования
package log
import (
"github.com/ManyakRus/starter/logger"
//"github.com/google/logger"
//"github.com/sirupsen/logrus"
logrus "github.com/ManyakRus/logrus"
)
// GetLog - возвращает глобальный логгер приложения
// и создаёт логгер если ещё не создан
func GetLog() *logrus.Logger {
return logger.GetLog()
}
// SetLevel - изменяет уровень логирования
func SetLevel(LOG_LEVEL string) {
logger.SetLevel(LOG_LEVEL)
}

259
vendor/github.com/ManyakRus/starter/log/logger_proxy.go generated vendored Normal file
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// дублирует все функции логгера logrus
package log
import (
"context"
"github.com/ManyakRus/logrus"
"github.com/ManyakRus/starter/logger"
"io"
"time"
)
// WithField allocates a new entry and adds a field to it.
// Debug, Print, Info, Warn, Error, Fatal or Panic must be then applied to
// this new returned entry.
// If you want multiple fields, use `WithFields`.
func WithField(key string, value interface{}) *logrus.Entry {
return logger.GetLog().WithField(key, value)
}
// Adds a struct of fields to the log entry. All it does is call `WithField` for
// each `Field`.
func WithFields(fields logrus.Fields) *logrus.Entry {
return GetLog().WithFields(fields)
}
// Add an error as single field to the log entry. All it does is call
// `WithError` for the given `error`.
func WithError(err error) *logrus.Entry {
return GetLog().WithError(err)
}
// Add a context to the log entry.
func WithContext(ctx context.Context) *logrus.Entry {
return GetLog().WithContext(ctx)
}
// Overrides the time of the log entry.
func WithTime(t time.Time) *logrus.Entry {
return GetLog().WithTime(t)
}
func Logf(level logrus.Level, format string, args ...interface{}) {
GetLog().Logf(level, format, args...)
}
func Tracef(format string, args ...interface{}) {
GetLog().Tracef(format, args...)
}
func Debugf(format string, args ...interface{}) {
GetLog().Debugf(format, args...)
}
func Infof(format string, args ...interface{}) {
GetLog().Infof(format, args...)
}
func Printf(format string, args ...interface{}) {
GetLog().Printf(format, args...)
}
func Warnf(format string, args ...interface{}) {
GetLog().Warnf(format, args...)
}
func Warningf(format string, args ...interface{}) {
GetLog().Warningf(format, args...)
}
func Errorf(format string, args ...interface{}) {
GetLog().Errorf(format, args...)
}
func Fatalf(format string, args ...interface{}) {
GetLog().Fatalf(format, args...)
}
func Panicf(format string, args ...interface{}) {
GetLog().Panicf(format, args...)
}
// Log will log a message at the level given as parameter.
// Warning: using Log at Panic or Fatal level will not respectively Panic nor Exit.
// For this behaviour Logger.Panic or Logger.Fatal should be used instead.
func Log(level logrus.Level, args ...interface{}) {
GetLog().Log(level, args...)
}
func LogFn(level logrus.Level, fn logrus.LogFunction) {
GetLog().LogFn(level, fn)
}
func Trace(args ...interface{}) {
GetLog().Trace(args...)
}
func Debug(args ...interface{}) {
GetLog().Debug(args...)
}
func Info(args ...interface{}) {
GetLog().Info(args...)
}
func Print(args ...interface{}) {
GetLog().Print(args...)
}
func Warn(args ...interface{}) {
GetLog().Warn(args...)
}
func Warning(args ...interface{}) {
GetLog().Warning(args...)
}
func Error(args ...interface{}) {
GetLog().Error(args...)
}
func Fatal(args ...interface{}) {
GetLog().Fatal(args...)
}
func Panic(args ...interface{}) {
GetLog().Panic(args...)
}
func TraceFn(fn logrus.LogFunction) {
GetLog().TraceFn(fn)
}
func DebugFn(fn logrus.LogFunction) {
GetLog().DebugFn(fn)
}
func InfoFn(fn logrus.LogFunction) {
GetLog().InfoFn(fn)
}
func PrintFn(fn logrus.LogFunction) {
GetLog().PrintFn(fn)
}
func WarnFn(fn logrus.LogFunction) {
GetLog().WarnFn(fn)
}
func WarningFn(fn logrus.LogFunction) {
GetLog().WarningFn(fn)
}
func ErrorFn(fn logrus.LogFunction) {
GetLog().ErrorFn(fn)
}
func FatalFn(fn logrus.LogFunction) {
GetLog().FatalFn(fn)
}
func PanicFn(fn logrus.LogFunction) {
GetLog().PanicFn(fn)
}
func Logln(level logrus.Level, args ...interface{}) {
GetLog().Logln(level, args...)
}
func Traceln(args ...interface{}) {
GetLog().Traceln(args...)
}
func Debugln(args ...interface{}) {
GetLog().Debugln(args...)
}
func Infoln(args ...interface{}) {
GetLog().Infoln(args...)
}
func Println(args ...interface{}) {
GetLog().Println(args...)
}
func Warnln(args ...interface{}) {
GetLog().Warnln(args...)
}
func Warningln(args ...interface{}) {
GetLog().Warningln(args...)
}
func Errorln(args ...interface{}) {
GetLog().Errorln(args...)
}
func Fatalln(args ...interface{}) {
GetLog().Fatalln(args...)
}
func Panicln(args ...interface{}) {
GetLog().Panicln(args...)
}
func Exit(code int) {
GetLog().Exit(code)
}
// When file is opened with appending mode, it's safe to
// write concurrently to a file (within 4k message on Linux).
// In these cases user can choose to disable the lock.
func SetNoLock() {
GetLog().SetNoLock()
}
//// SetLevel sets the logger level.
//func SetLevel(level logrus.Level) {
//}
// GetLevel returns the logger level.
func GetLevel() logrus.Level {
return GetLog().GetLevel()
}
// AddHook adds a hook to the logger hooks.
func AddHook(hook logrus.Hook) {
GetLog().AddHook(hook)
}
// IsLevelEnabled checks if the log level of the logger is greater than the level param
func IsLevelEnabled(level logrus.Level) bool {
return GetLog().IsLevelEnabled(level)
}
// SetFormatter sets the logger formatter.
func SetFormatter(formatter logrus.Formatter) {
GetLog().SetFormatter(formatter)
}
// SetOutput sets the logger output.
func SetOutput(output io.Writer) {
GetLog().SetOutput(output)
}
func SetReportCaller(reportCaller bool) {
GetLog().SetReportCaller(reportCaller)
}
// ReplaceHooks replaces the logger hooks and returns the old ones
func ReplaceHooks(hooks logrus.LevelHooks) logrus.LevelHooks {
GetLog()
return ReplaceHooks(hooks)
}
// SetBufferPool sets the logger buffer pool.
func SetBufferPool(pool logrus.BufferPool) {
GetLog().SetBufferPool(pool)
}

89
vendor/github.com/ManyakRus/starter/logger/logger.go generated vendored Normal file
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// модуль создания единого логирования
package logger
import (
"os"
"path"
"runtime"
"strconv"
"sync"
//"github.com/google/logger"
//"github.com/sirupsen/logrus"
logrus "github.com/ManyakRus/logrus"
"github.com/ManyakRus/starter/micro"
)
// log - глобальный логгер приложения
var log *logrus.Logger
// onceLog - гарантирует единственное создание логгера
var onceLog sync.Once
// GetLog - возвращает глобальный логгер приложения
// и создаёт логгер если ещё не создан
func GetLog() *logrus.Logger {
onceLog.Do(func() {
log = logrus.New()
log.SetReportCaller(true)
Formatter := new(logrus.TextFormatter)
Formatter.TimestampFormat = "2006-01-02 15:04:05.000"
Formatter.FullTimestamp = true
Formatter.CallerPrettyfier = CallerPrettyfier
log.SetFormatter(Formatter)
LOG_LEVEL := os.Getenv("LOG_LEVEL")
SetLevel(LOG_LEVEL)
//LOG_FILE := "log.txt"
//file, err := os.OpenFile(LOG_FILE, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0755)
//if err != nil {
// log.Fatal(err)
//}
////defer file.Close()
//
//mw := io.MultiWriter(os.Stderr, file)
//logrus.SetOutput(mw)
//log.SetOutput(os.Stdout)
//log.SetOutput(file)
})
return log
}
// CallerPrettyfier - форматирует имя файла и номер строки кода
func CallerPrettyfier(frame *runtime.Frame) (function string, file string) {
fileName := " " + path.Base(frame.File) + ":" + strconv.Itoa(frame.Line) + "\t"
FunctionName := frame.Function
FunctionName = micro.LastWord(FunctionName)
FunctionName = FunctionName + "()" + "\t"
return FunctionName, fileName
}
// SetLevel - изменяет уровень логирования
func SetLevel(LOG_LEVEL string) {
if log == nil {
GetLog()
}
if LOG_LEVEL == "" {
LOG_LEVEL = "info"
}
level, err := logrus.ParseLevel(LOG_LEVEL)
if err != nil {
log.Error("logrus.ParseLevel() error: ", err)
}
if level == log.Level {
return
}
log.SetLevel(level)
log.Debug("new level: ", LOG_LEVEL)
}

311
vendor/github.com/ManyakRus/starter/logger/logger_proxy.go generated vendored Normal file
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// дублирует все функции логгера logrus
package logger
//
//import (
// "context"
// "github.com/sirupsen/logrus"
// "io"
// "time"
//)
//
//// WithField allocates a new entry and adds a field to it.
//// Debug, Print, Info, Warn, Error, Fatal or Panic must be then applied to
//// this new returned entry.
//// If you want multiple fields, use `WithFields`.
//func WithField(key string, value interface{}) *logrus.Entry {
// return log.WithField(key, value)
//}
//
//// Adds a struct of fields to the log entry. All it does is call `WithField` for
//// each `Field`.
//func WithFields(fields logrus.Fields) *logrus.Entry {
// GetLog()
// return log.WithFields(fields)
//}
//
//// Add an error as single field to the log entry. All it does is call
//// `WithError` for the given `error`.
//func WithError(err error) *logrus.Entry {
// GetLog()
// return log.WithError(err)
//}
//
//// Add a context to the log entry.
//func WithContext(ctx context.Context) *logrus.Entry {
// GetLog()
// return log.WithContext(ctx)
//}
//
//// Overrides the time of the log entry.
//func WithTime(t time.Time) *logrus.Entry {
// GetLog()
// return WithTime(t)
//}
//
//func Logf(level logrus.Level, format string, args ...interface{}) {
// GetLog()
// log.Logf(level, format, args...)
//}
//
//func Tracef(format string, args ...interface{}) {
// GetLog()
// log.Tracef(format, args...)
//}
//
//func Debugf(format string, args ...interface{}) {
// GetLog()
// log.Debugf(format, args...)
//}
//
//func Infof(format string, args ...interface{}) {
// GetLog()
// log.Infof(format, args...)
//}
//
//func Printf(format string, args ...interface{}) {
// GetLog()
// log.Printf(format, args...)
//}
//
//func Warnf(format string, args ...interface{}) {
// GetLog()
// log.Warnf(format, args...)
//}
//
//func Warningf(format string, args ...interface{}) {
// GetLog()
// log.Warningf(format, args...)
//}
//
//func Errorf(format string, args ...interface{}) {
// GetLog()
// log.Errorf(format, args...)
//}
//
//func Fatalf(format string, args ...interface{}) {
// GetLog()
// log.Fatalf(format, args...)
//}
//
//func Panicf(format string, args ...interface{}) {
// GetLog()
// log.Panicf(format, args...)
//}
//
//// Log will log a message at the level given as parameter.
//// Warning: using Log at Panic or Fatal level will not respectively Panic nor Exit.
//// For this behaviour Logger.Panic or Logger.Fatal should be used instead.
//func Log(level logrus.Level, args ...interface{}) {
// GetLog()
// log.Log(level, args...)
//}
//
//func LogFn(level logrus.Level, fn logrus.LogFunction) {
// GetLog()
// log.LogFn(level, fn)
//}
//
//func Trace(args ...interface{}) {
// GetLog()
// log.Trace(args...)
//}
//
//func Debug(args ...interface{}) {
// GetLog()
// log.Debug(args...)
//}
//
//func Info(args ...interface{}) {
// GetLog()
// log.Info(args...)
//}
//
//func Print(args ...interface{}) {
// GetLog()
// log.Print(args...)
//}
//
//func Warn(args ...interface{}) {
// GetLog()
// log.Warn(args...)
//}
//
//func Warning(args ...interface{}) {
// GetLog()
// log.Warning(args...)
//}
//
//func Error(args ...interface{}) {
// GetLog()
// log.Error(args...)
//}
//
//func Fatal(args ...interface{}) {
// GetLog()
// log.Fatal(args...)
//}
//
//func Panic(args ...interface{}) {
// GetLog()
// log.Panic(args...)
//}
//
//func TraceFn(fn logrus.LogFunction) {
// GetLog()
// log.TraceFn(fn)
//}
//
//func DebugFn(fn logrus.LogFunction) {
// GetLog()
// log.DebugFn(fn)
//}
//
//func InfoFn(fn logrus.LogFunction) {
// GetLog()
// log.InfoFn(fn)
//}
//
//func PrintFn(fn logrus.LogFunction) {
// GetLog()
// log.PrintFn(fn)
//}
//
//func WarnFn(fn logrus.LogFunction) {
// GetLog()
// log.WarnFn(fn)
//}
//
//func WarningFn(fn logrus.LogFunction) {
// GetLog()
// log.WarningFn(fn)
//}
//
//func ErrorFn(fn logrus.LogFunction) {
// GetLog()
// log.ErrorFn(fn)
//}
//
//func FatalFn(fn logrus.LogFunction) {
// GetLog()
// log.FatalFn(fn)
//}
//
//func PanicFn(fn logrus.LogFunction) {
// GetLog()
// log.PanicFn(fn)
//}
//
//func Logln(level logrus.Level, args ...interface{}) {
// GetLog()
// log.Logln(level, args...)
//}
//
//func Traceln(args ...interface{}) {
// GetLog()
// log.Traceln(args...)
//}
//
//func Debugln(args ...interface{}) {
// GetLog()
// log.Debugln(args...)
//}
//
//func Infoln(args ...interface{}) {
// GetLog()
// log.Infoln(args...)
//}
//
//func Println(args ...interface{}) {
// GetLog()
// log.Println(args...)
//}
//
//func Warnln(args ...interface{}) {
// GetLog()
// log.Warnln(args...)
//}
//
//func Warningln(args ...interface{}) {
// GetLog()
// log.Warningln(args...)
//}
//
//func Errorln(args ...interface{}) {
// GetLog()
// log.Errorln(args...)
//}
//
//func Fatalln(args ...interface{}) {
// GetLog()
// log.Fatalln(args...)
//}
//
//func Panicln(args ...interface{}) {
// GetLog()
// log.Panicln(args...)
//}
//
//func Exit(code int) {
// GetLog()
// log.Exit(code)
//}
//
////When file is opened with appending mode, it's safe to
////write concurrently to a file (within 4k message on Linux).
////In these cases user can choose to disable the lock.
//func SetNoLock() {
// GetLog()
// log.SetNoLock()
//}
//
////// SetLevel sets the logger level.
////func SetLevel(level logrus.Level) {
////}
//
//// GetLevel returns the logger level.
//func GetLevel() logrus.Level {
// GetLog()
// return log.GetLevel()
//}
//
//// AddHook adds a hook to the logger hooks.
//func AddHook(hook logrus.Hook) {
// GetLog()
// log.AddHook(hook)
//}
//
//// IsLevelEnabled checks if the log level of the logger is greater than the level param
//func IsLevelEnabled(level logrus.Level) bool {
// GetLog()
// return log.IsLevelEnabled(level)
//}
//
//// SetFormatter sets the logger formatter.
//func SetFormatter(formatter logrus.Formatter) {
// GetLog()
// log.SetFormatter(formatter)
//}
//
//// SetOutput sets the logger output.
//func SetOutput(output io.Writer) {
// GetLog()
// log.SetOutput(output)
//}
//
//func SetReportCaller(reportCaller bool) {
// GetLog()
// log.SetReportCaller(reportCaller)
//}
//
//// ReplaceHooks replaces the logger hooks and returns the old ones
//func ReplaceHooks(hooks logrus.LevelHooks) logrus.LevelHooks {
// GetLog()
// return ReplaceHooks(hooks)
//}
//
//// SetBufferPool sets the logger buffer pool.
//func SetBufferPool(pool logrus.BufferPool) {
// GetLog()
// log.SetBufferPool(pool)
//}

634
vendor/github.com/ManyakRus/starter/micro/microfunctions.go generated vendored Normal file
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// модуль с вспомогательными небольшими функциями
package micro
import (
"context"
"errors"
"fmt"
"hash/fnv"
"reflect"
"runtime"
"strconv"
"strings"
"unicode"
//"log"
"os"
"path/filepath"
"time"
)
//var log = logger.GetLog()
// IsTestApp - возвращает true если это тестовая среда выполнения приложения
func IsTestApp() bool {
Otvet := true
stage, ok := os.LookupEnv("STAGE")
if ok == false {
panic(fmt.Errorf("Not found Env 'STAGE' !"))
}
switch stage {
case "local", "dev", "test", "preprod":
Otvet = true
case "prod":
Otvet = false
default:
panic(fmt.Errorf("Error, unknown stage(%v) !", stage))
}
return Otvet
}
// FileExists - возвращает true если файл существует
func FileExists(name string) (bool, error) {
_, err := os.Stat(name)
if err == nil {
return true, nil
}
if errors.Is(err, os.ErrNotExist) {
return false, nil
}
return false, err
}
// AddSeparator - добавляет в конец строки сеператор "/", если его там нет
func AddSeparator(dir string) string {
otvet := dir
if otvet == "" {
return SeparatorFile()
}
if otvet[len(otvet)-1:] != SeparatorFile() {
otvet = otvet + SeparatorFile()
}
return otvet
}
// SeparatorFile - возвращает символ сепаратора каталогов= / или \
func SeparatorFile() string {
return string(filepath.Separator)
}
// Sleep - приостановка работы программы на нужное число миллисекунд
func Sleep(ms int) {
duration := time.Duration(ms) * time.Millisecond
time.Sleep(duration)
}
// Pause - приостановка работы программы на нужное число миллисекунд
func Pause(ms int) {
Sleep(ms)
}
// FindDirUp - возвращает строку с именем каталога на уровень выше
func FindDirUp(dir string) string {
otvet := dir
if dir == "" {
return otvet
}
if otvet[len(otvet)-1:] == SeparatorFile() {
otvet = otvet[:len(otvet)-1]
}
pos1 := strings.LastIndex(otvet, SeparatorFile())
if pos1 > 0 {
otvet = otvet[0 : pos1+1]
}
return otvet
}
// ErrorJoin - возвращает ошибку из объединения текста двух ошибок
func ErrorJoin(err1, err2 error) error {
var err error
if err1 == nil && err2 == nil {
} else if err1 == nil {
err = err2
} else if err2 == nil {
err = err1
} else {
err = errors.New(err1.Error() + ", " + err2.Error())
}
return err
}
// SubstringLeft - возвращает левые символы строки
func SubstringLeft(str string, num int) string {
if num <= 0 {
return ``
}
if num > len(str) {
num = len(str)
}
return str[:num]
}
// SubstringRight - возвращает правые символы строки
func SubstringRight(str string, num int) string {
if num <= 0 {
return ``
}
max := len(str)
if num > max {
num = max
}
num = max - num
return str[num:]
}
// StringBetween - GetStringInBetween Returns empty string if no start string found
func StringBetween(str string, start string, end string) string {
otvet := ""
if str == "" {
return otvet
}
pos1 := strings.Index(str, start)
if pos1 == -1 {
return otvet
}
pos1 += len(start)
pos2 := strings.Index(str[pos1:], end)
if pos2 == -1 {
return otvet
}
pos2 = pos1 + pos2
otvet = str[pos1:pos2]
return otvet
}
// LastWord - возвращает последнее слово из строки
func LastWord(StringFrom string) string {
Otvet := ""
if StringFrom == "" {
return Otvet
}
r := []rune(StringFrom)
for f := len(r); f >= 0; f-- {
r1 := r[f-1]
if r1 == '_' {
} else if unicode.IsLetter(r1) == false && unicode.IsDigit(r1) == false {
break
}
Otvet = string(r1) + Otvet
}
return Otvet
}
// CurrentFilename - возвращает полное имя текущего исполняемого файла
func CurrentFilename() string {
_, filename, _, _ := runtime.Caller(0)
return filename
}
// ProgramDir - возвращает главный каталог программы, в конце "/"
func ProgramDir_Common() string {
//filename := os.Args[0]
filename, err := os.Executable()
if err != nil {
panic(err)
}
dir := filepath.Dir(filename)
sdir := strings.ToLower(dir)
substr := "/tmp/"
pos1 := strings.Index(sdir, substr)
if pos1 >= 0 {
//linux
filename = CurrentFilename()
dir = filepath.Dir(filename)
substr := SeparatorFile() + "vendor" + SeparatorFile()
pos_vendor := strings.Index(strings.ToLower(dir), substr)
if pos_vendor >= 0 {
dir = dir[0:pos_vendor]
} else if dir[len(dir)-5:] == "micro" {
dir = FindDirUp(dir)
//dir = FindDirUp(dir)
//dir = FindDirUp(dir)
}
} else {
//Windows
substr = "\\temp\\"
pos1 = strings.Index(sdir, substr)
if pos1 >= 0 {
filename = CurrentFilename()
dir = filepath.Dir(filename)
substr := SeparatorFile() + "vendor" + SeparatorFile()
pos_vendor := strings.Index(strings.ToLower(dir), substr)
if pos_vendor >= 0 {
dir = dir[0:pos_vendor]
} else if dir[len(dir)-5:] == "micro" {
dir = FindDirUp(dir)
//dir = FindDirUp(dir)
//dir = FindDirUp(dir)
}
}
}
//dir, err := os.Getwd()
//if err != nil {
// log.Fatalln(err)
// dir = ""
//}
dir = AddSeparator(dir)
return dir
}
// ProgramDir - возвращает главный каталог программы, в конце "/"
func ProgramDir() string {
Otvet := ProgramDir_Common()
return Otvet
}
// FileNameWithoutExtension - возвращает имя файла без расширения
func FileNameWithoutExtension(fileName string) string {
return strings.TrimSuffix(fileName, filepath.Ext(fileName))
}
func BeginningOfMonth(date time.Time) time.Time {
return date.AddDate(0, 0, -date.Day()+1)
}
func EndOfMonth(date time.Time) time.Time {
Otvet := date.AddDate(0, 1, -date.Day())
return Otvet
//return date.AddDate(0, 1, -date.Day())
}
//// GetPackageName - возвращает имя пакета
//func GetPackageName(temp interface{}) string {
// strs := strings.Split((runtime.FuncForPC(reflect.ValueOf(temp).Pointer()).Name()), ".")
// strs = strings.Split(strs[len(strs)-2], "/")
// return strs[len(strs)-1]
//}
// StringAfter - возвращает строку, начиная после субстроки StringAfter
func StringAfter(StringFull, StringAfter string) string {
Otvet := StringFull
pos1 := strings.Index(StringFull, StringAfter)
if pos1 == -1 {
return Otvet
}
Otvet = Otvet[pos1+len(StringAfter):]
return Otvet
}
// StringFrom - возвращает строку, начиная со субстроки StringAfter
func StringFrom(StringFull, StringAfter string) string {
Otvet := StringFull
pos1 := strings.Index(StringFull, StringAfter)
if pos1 == -1 {
return Otvet
}
Otvet = Otvet[pos1:]
return Otvet
}
func Trim(s string) string {
Otvet := ""
Otvet = strings.Trim(s, " \n\r\t")
return Otvet
}
// Max returns the largest of x or y.
func Max(x, y int) int {
if x < y {
return y
}
return x
}
// Min returns the smallest of x or y.
func Min(x, y int) int {
if x > y {
return y
}
return x
}
// Max returns the largest of x or y.
func MaxInt64(x, y int64) int64 {
if x < y {
return y
}
return x
}
// Min returns the smallest of x or y.
func MinInt64(x, y int64) int64 {
if x > y {
return y
}
return x
}
// MaxDate returns the largest of x or y.
func MaxDate(x, y time.Time) time.Time {
if x.Before(y) == true {
return y
}
return x
}
// MinDate returns the smallest of x or y.
func MinDate(x, y time.Time) time.Time {
if x.Before(y) == false {
return y
}
return x
}
// GoGo - запускает функцию в отдельном потоке
func GoGo(ctx context.Context, fn func() error) error {
var err error
chanErr := make(chan error)
go gogo_chan(fn, chanErr)
select {
case <-ctx.Done():
Text1 := "error: TimeOut"
err = errors.New(Text1)
return err
case err = <-chanErr:
//print("err: ", err)
break
}
return err
}
// gogo_chan - запускает функцию и возвращает ошибку в поток
// только совместно с GoGo()
func gogo_chan(fn func() error, chanErr chan error) {
err := fn()
chanErr <- err
}
// CheckInnKpp - проверяет правильность ИНН и КПП
func CheckInnKpp(Inn, Kpp string, is_individual bool) error {
var err error
if Inn == "" {
Text1 := "ИНН не должен быть пустой"
err = errors.New(Text1)
return err
}
if is_individual == true {
if len(Inn) != 12 {
Text1 := "Длина ИНН должна быть 12 символов"
err = errors.New(Text1)
return err
}
if len(Kpp) != 0 {
Text1 := "КПП должен быть пустой"
err = errors.New(Text1)
return err
}
} else {
if len(Inn) != 10 {
Text1 := "Длина ИНН должна быть 10 символов"
err = errors.New(Text1)
return err
}
if len(Kpp) != 9 {
Text1 := "КПП должен быть 9 символов"
err = errors.New(Text1)
return err
}
err = CheckINNControlSum(Inn)
}
return err
}
// CheckINNControlSum - проверяет правильность ИНН по контрольной сумме
func CheckINNControlSum(Inn string) error {
var err error
if len(Inn) == 10 {
err = CheckINNControlSum10(Inn)
} else if len(Inn) == 12 {
err = CheckINNControlSum12(Inn)
} else {
err = errors.New("ИНН должен быть 10 или 12 символов")
}
return err
}
// CheckINNControlSum10 - проверяет правильность 10-значного ИНН по контрольной сумме
func CheckINNControlSum10(Inn string) error {
var err error
MassKoef := [10]int{2, 4, 10, 3, 5, 9, 4, 6, 8, 0}
var sum int
var x int
for i, _ := range Inn {
s := Inn[i : i+1]
var err1 error
x, err1 = strconv.Atoi(s)
if err1 != nil {
err = errors.New("Неправильная цифра в ИНН: " + s)
return err
}
sum = sum + x*MassKoef[i]
}
ControlSum := sum % 11
ControlSum = ControlSum % 10
if ControlSum != x {
err = errors.New("Неправильная контрольная сумма ИНН")
return err
}
return err
}
// CheckINNControlSum2 - проверяет правильность 12-значного ИНН по контрольной сумме
func CheckINNControlSum12(Inn string) error {
var err error
//контрольное чилос по 11 знакам
MassKoef := [11]int{7, 2, 4, 10, 3, 5, 9, 4, 6, 8, 0}
var sum int
var x11 int
for i := 0; i < 11; i++ {
s := Inn[i : i+1]
var err1 error
x, err1 := strconv.Atoi(s)
if err1 != nil {
err = errors.New("Неправильная цифра в ИНН: " + s)
return err
}
if i == 10 {
x11 = x
}
sum = sum + x*MassKoef[i]
}
ControlSum := sum % 11
ControlSum = ControlSum % 10
if ControlSum != x11 {
err = errors.New("Неправильная контрольная сумма ИНН")
return err
}
//контрольное чилос по 12 знакам
MassKoef2 := [12]int{3, 7, 2, 4, 10, 3, 5, 9, 4, 6, 8, 0}
var sum2 int
var x12 int
for i := 0; i < 12; i++ {
s := Inn[i : i+1]
var err1 error
x, err1 := strconv.Atoi(s)
if err1 != nil {
err = errors.New("Неправильная цифра в ИНН: " + s)
return err
}
if i == 11 {
x12 = x
}
sum2 = sum2 + x*MassKoef2[i]
}
ControlSum2 := sum2 % 11
ControlSum2 = ControlSum2 % 10
if ControlSum2 != x12 {
err = errors.New("Неправильная контрольная сумма ИНН")
return err
}
return err
}
// StringFromInt64 - возвращает строку из числа
func StringFromInt64(i int64) string {
Otvet := ""
Otvet = strconv.FormatInt(i, 10)
return Otvet
}
// StringDate - возвращает строку дата без времени
func StringDate(t time.Time) string {
Otvet := ""
Otvet = t.Format("02.01.2006")
return Otvet
}
// ProgramDir_bin - возвращает каталог "bin" или каталог программы
func ProgramDir_bin() string {
Otvet := ""
dir := ProgramDir()
FileName := dir + "bin" + SeparatorFile()
ok, _ := FileExists(FileName)
if ok == true {
return FileName
}
Otvet = dir
return Otvet
}
// SaveTempFile - записывает массив байт в файл
func SaveTempFile(bytes []byte) string {
Otvet, err := SaveTempFile_err(bytes)
if err != nil {
TextError := fmt.Sprint("SaveTempFile() error: ", err)
print(TextError)
panic(TextError)
}
return Otvet
}
// SaveTempFile_err - записывает массив байт в файл, возвращает ошибку
func SaveTempFile_err(bytes []byte) (string, error) {
Otvet := ""
// create and open a temporary file
f, err := os.CreateTemp("", "") // in Go version older than 1.17 you can use ioutil.TempFile
if err != nil {
return Otvet, err
}
// close and remove the temporary file at the end of the program
defer f.Close()
defer os.Remove(f.Name())
// write data to the temporary file
if _, err := f.Write(bytes); err != nil {
return Otvet, err
}
Otvet = f.Name()
return Otvet, err
}
// Hash - возвращает число хэш из строки
func Hash(s string) uint32 {
h := fnv.New32a()
h.Write([]byte(s))
return h.Sum32()
}
// TextError - возвращает текст ошибки из error
func TextError(err error) string {
Otvet := ""
if err != nil {
Otvet = err.Error()
}
return Otvet
}
// GetType - возвращает строку тип объекта
func GetType(myvar interface{}) string {
return reflect.TypeOf(myvar).String()
}

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vendor/github.com/ManyakRus/starter/ping/ping.go generated vendored Normal file
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package ping
import (
"github.com/ManyakRus/starter/logger"
"net"
"time"
)
// log - глобальный логгер
var log = logger.GetLog()
func Ping_err(IP, Port string) error {
var err error
var timeout time.Duration
timeout = time.Second * 3
network := IP + ":" + Port
conn, err := net.DialTimeout("tcp", network, timeout)
if err != nil {
//log.Warn("PingPort() error: ", err)
} else {
defer conn.Close()
//log.Debug("ping OK: ", network)
}
return err
}
func Ping(IP, Port string) {
var err error
network := IP + ":" + Port
err = Ping_err(IP, Port)
if err != nil {
log.Panic("Ping() error: ", err)
} else {
log.Debug("Ping() OK: ", network)
}
}

291
vendor/github.com/ManyakRus/starter/postgres_connect/postgres_connect.go generated vendored Normal file
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// модуль для работы с базой данных
package postgres_connect
import (
"context"
"errors"
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq"
"github.com/ManyakRus/starter/logger"
"github.com/ManyakRus/starter/ping"
"os"
"sync"
"time"
"github.com/ManyakRus/starter/contextmain"
"github.com/ManyakRus/starter/micro"
"github.com/ManyakRus/starter/stopapp"
)
// Conn - соединение к базе данных
var Conn *sqlx.DB
// log - глобальный логгер
var log = logger.GetLog()
// mutexReconnect - защита от многопоточности Reconnect()
var mutexReconnect = &sync.Mutex{}
// Settings хранит все нужные переменные окружения
var Settings SettingsINI
// NeedReconnect - флаг необходимости переподключения
var NeedReconnect bool
// SettingsINI - структура для хранения всех нужных переменных окружения
type SettingsINI struct {
DB_HOST string
DB_PORT string
DB_NAME string
DB_SCHEMA string
DB_USER string
DB_PASSWORD string
}
// Connect_err - подключается к базе данных
func Connect() {
if Settings.DB_HOST == "" {
FillSettings()
}
ping.Ping(Settings.DB_HOST, Settings.DB_PORT)
err := Connect_err()
if err != nil {
log.Panicln("POSTGRES sqlx Connect_err() host: ", Settings.DB_HOST, ", Error: ", err)
} else {
log.Info("POSTGRES sqlx connected. host: ", Settings.DB_HOST, ", base name: ", Settings.DB_NAME, ", schema: ", Settings.DB_SCHEMA)
}
}
// Connect_err - подключается к базе данных
func Connect_err() error {
var err error
if Settings.DB_HOST == "" {
FillSettings()
}
//ctxMain := context.Background()
//ctxMain := contextmain.GetContext()
//ctx, cancel := context.WithTimeout(ctxMain, 5*time.Second)
//defer cancel()
// get the database connection URL.
databaseUrl := "postgres://" + Settings.DB_USER + ":" + Settings.DB_PASSWORD
databaseUrl += "@" + Settings.DB_HOST + ":5432/" + Settings.DB_NAME + "?sslmode=disable"
//
//Conn, err = pgx.Connect(ctx, databaseUrl)
Conn, err = sqlx.Connect(
"postgres",
databaseUrl,
)
if err == nil {
err = Conn.Ping()
}
return err
}
// IsClosed проверка что база данных закрыта
func IsClosed() bool {
var otvet bool
if Conn == nil {
return true
}
ctx := contextmain.GetContext()
err := Conn.PingContext(ctx)
if err != nil {
otvet = true
}
return otvet
}
// Reconnect повторное подключение к базе данных, если оно отключено
// или полная остановка программы
func Reconnect(err error) {
mutexReconnect.Lock()
defer mutexReconnect.Unlock()
if err == nil {
return
}
if errors.Is(err, context.Canceled) {
return
}
if Conn == nil {
log.Warn("Reconnect()")
err := Connect_err()
if err != nil {
log.Error("error: ", err)
}
return
}
if IsClosed() {
micro.Pause(1000)
log.Warn("Reconnect()")
err := Connect_err()
if err != nil {
log.Error("error: ", err)
}
return
}
sError := err.Error()
if sError == "Conn closed" {
micro.Pause(1000)
log.Warn("Reconnect()")
err := Connect_err()
if err != nil {
log.Error("error: ", err)
}
return
}
//PgError, ok := err.(*pgconn.PgError)
//if ok {
// if PgError.Code == "P0001" { // Class P0 — PL/pgSQL Error, RaiseException
// return //нужен
// }
//}
//остановим программу т.к. она не должна работать при неработающеё БД
log.Error("STOP app. Error: ", err)
stopapp.StopApp()
}
// CloseConnection - закрытие соединения с базой данных
func CloseConnection() error {
if Conn == nil {
return nil
}
err := CloseConnection_err()
if err != nil {
log.Error("Postgres sqlx CloseConnection() error: ", err)
} else {
log.Info("Postgres sqlx connection closed")
}
return err
}
// CloseConnection - закрытие соединения с базой данных
func CloseConnection_err() error {
if Conn == nil {
return nil
}
//ctx := contextmain.GetContext()
//ctx := context.Background()
err := Conn.Close()
return err
}
// WaitStop - ожидает отмену глобального контекста
func WaitStop() {
select {
case <-contextmain.GetContext().Done():
log.Warn("Context app is canceled.")
}
//
stopapp.WaitTotalMessagesSendingNow("Postgres sqlx")
//
err := CloseConnection()
if err != nil {
log.Error("CloseConnection() error: ", err)
}
stopapp.GetWaitGroup_Main().Done()
}
// StartDB - делает соединение с БД, отключение и др.
func StartDB() {
Connect()
stopapp.GetWaitGroup_Main().Add(1)
go WaitStop()
stopapp.GetWaitGroup_Main().Add(1)
go ping_go()
}
// FillSettings загружает переменные окружения в структуру из переменных окружения
func FillSettings() {
Settings = SettingsINI{}
Settings.DB_HOST = os.Getenv("DB_HOST")
Settings.DB_PORT = os.Getenv("DB_PORT")
Settings.DB_NAME = os.Getenv("DB_NAME")
Settings.DB_SCHEMA = os.Getenv("DB_SCHEME")
Settings.DB_USER = os.Getenv("DB_USER")
Settings.DB_PASSWORD = os.Getenv("DB_PASSWORD")
if Settings.DB_HOST == "" {
log.Panicln("Need fill DB_HOST ! in os.ENV ")
}
if Settings.DB_PORT == "" {
log.Panicln("Need fill DB_PORT ! in os.ENV ")
}
if Settings.DB_NAME == "" {
log.Panicln("Need fill DB_NAME ! in os.ENV ")
}
if Settings.DB_SCHEMA == "" {
log.Panicln("Need fill DB_SCHEME ! in os.ENV ")
}
if Settings.DB_USER == "" {
log.Panicln("Need fill DB_USER ! in os.ENV ")
}
if Settings.DB_PASSWORD == "" {
log.Panicln("Need fill DB_PASSWORD ! in os.ENV ")
}
//
}
// ping_go - делает пинг каждые 60 секунд, и реконнект
func ping_go() {
ticker := time.NewTicker(60 * time.Second)
addr := Settings.DB_HOST + ":" + Settings.DB_PORT
//бесконечный цикл
loop:
for {
select {
case <-contextmain.GetContext().Done():
log.Warn("Context app is canceled. postgres_connect.ping")
break loop
case <-ticker.C:
err := ping.Ping_err(Settings.DB_HOST, Settings.DB_PORT)
//log.Debug("ticker, ping err: ", err) //удалить
if err != nil {
NeedReconnect = true
log.Warn("postgres_connect Ping(", addr, ") error: ", err)
} else if NeedReconnect == true {
log.Warn("postgres_connect Ping(", addr, ") OK. Start Reconnect()")
NeedReconnect = false
Connect()
}
}
}
stopapp.GetWaitGroup_Main().Done()
}

127
vendor/github.com/ManyakRus/starter/stopapp/stopapp.go generated vendored Normal file
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// модуль для корректной остановки работы приложения
package stopapp
import (
"github.com/ManyakRus/starter/logger"
"os"
"os/signal"
"sync"
"sync/atomic"
"syscall"
//"github.com/sirupsen/logrus"
"github.com/ManyakRus/starter/contextmain"
"github.com/ManyakRus/starter/micro"
// "gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/micro"
//"gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/db"
//"gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/grpcserver"
//"gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/logger"
//"gitlab.aescorp.ru/dsp_dev/notifier/notifier_adp_eml/internal/v0/app/micro"
)
// log - глобальный логгер
var log = logger.GetLog()
// SignalInterrupt - канал для ожидания сигнала остановки приложения
var SignalInterrupt chan os.Signal
// wgMain - группа ожидания завершения всех частей программы
var wgMain *sync.WaitGroup
// lockWGMain - гарантирует получение WGMain с учётом многопоточности
var lockWGMain = &sync.Mutex{}
// onceWGMain - гарантирует создание WGMain один раз
var onceWGMain sync.Once
// TotalMessagesSendingNow - количество сообщений отправляющихся прям сейчас
var TotalMessagesSendingNow int32
// SecondsWaitTotalMessagesSendingNow - количество секунд ожидания для отправки последнего сообщения
const SecondsWaitTotalMessagesSendingNow = 10
// SetWaitGroup_Main - присваивает внешний WaitGroup
func SetWaitGroup_Main(wg *sync.WaitGroup) {
wgMain = wg
}
// GetWaitGroup_Main - возвращает группу ожидания завершения всех частей программы
func GetWaitGroup_Main() *sync.WaitGroup {
lockWGMain.Lock()
defer lockWGMain.Unlock()
//
//if wgMain == nil {
// wgMain = &sync.WaitGroup{}
//}
if wgMain == nil {
//onceWGMain.Do(func() {
wgMain = &sync.WaitGroup{}
//})
}
return wgMain
}
// StartWaitStop - запускает ожидание сигнала завершения приложения
func StartWaitStop() {
SignalInterrupt = make(chan os.Signal, 1)
fnWait := func() {
signal.Notify(SignalInterrupt, os.Interrupt, syscall.SIGTERM)
}
go fnWait()
GetWaitGroup_Main().Add(1)
go WaitStop()
}
// StopApp - отмена глобального контекста для остановки работы приложения
func StopApp() {
if contextmain.CancelContext != nil {
contextmain.CancelContext()
} else {
//os.Exit(0)
log.Warn("Context = nil")
}
}
// StopApp - отмена глобального контекста для остановки работы приложения
func StopAppAndWait() {
if contextmain.CancelContext != nil {
contextmain.CancelContext()
} else {
os.Exit(0)
}
GetWaitGroup_Main().Wait()
}
// WaitStop - ожидает отмену глобального контекста или сигнала завершения приложения
func WaitStop() {
select {
case <-SignalInterrupt:
log.Warn("Interrupt clean shutdown.")
contextmain.CancelContext()
case <-contextmain.GetContext().Done():
log.Warn("Context app is canceled.")
}
GetWaitGroup_Main().Done()
}
// ожидает чтоб прям щас ничего не отправлялось
func WaitTotalMessagesSendingNow(filename string) {
for f := 0; f < SecondsWaitTotalMessagesSendingNow; f++ {
TotalMessages := atomic.LoadInt32(&TotalMessagesSendingNow)
if TotalMessages == 0 {
break
}
log.Warn("TotalMessagesSendingNow =", TotalMessages, " !=0 sleep(1000), filename: ", filename)
micro.Sleep(1000)
}
}

329
vendor/github.com/ManyakRus/starter/whatsapp_connect/whatsapp_connect.go generated vendored Normal file
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package whatsapp_connect
//Licenses:
//Whatsapp клиент - go.mau.fi/whatsmeow" - MPL-2.0
//QR-код - github.com/mdp/qrterminal/v3" - MIT License
//SQL сервер - "github.com/mattn/go-sqlite3" - MIT License
import (
"context"
"errors"
"fmt"
"github.com/ManyakRus/starter/logger"
"go.mau.fi/whatsmeow/types/events"
"os"
"strings"
"sync"
"time"
_ "github.com/mattn/go-sqlite3"
"github.com/mdp/qrterminal/v3"
"go.mau.fi/whatsmeow"
waProto "go.mau.fi/whatsmeow/binary/proto"
"go.mau.fi/whatsmeow/store/sqlstore"
"go.mau.fi/whatsmeow/types"
waLog "go.mau.fi/whatsmeow/util/log"
"github.com/ManyakRus/starter/contextmain"
"github.com/ManyakRus/starter/micro"
"github.com/ManyakRus/starter/stopapp"
)
// clientWhatsApp - клиент соединения мессенджера Whatsapp
var clientWhatsApp *whatsmeow.Client
// log - глобальный логгер приложения
var log = logger.GetLog()
// filenameDB - имя файла локально базы данных sqllite
var filenameDB string
// MaxSendMessageCountIn1Second - максимальное количество сообщений в 1 секунду
var MaxSendMessageCountIn1Second float32 = 0.1
// lastSendTime - время последней отправки сообщения и мьютекс
var lastSendTime = lastSendTimeMutex{}
// lastSendTimeMutex - структура хранения времени последней отправки и мьютекс
type lastSendTimeMutex struct {
time time.Time
sync.Mutex
}
// Settings хранит все нужные переменные окружения
var Settings SettingsINI
// SettingsINI - структура для хранения всех нужных переменных окружения
type SettingsINI struct {
WHATSAPP_PHONE_FROM string
WHATSAPP_PHONE_SEND_TEST string
}
// MessageWhatsapp - сообщение из WhatsApp сокращённо
type MessageWhatsapp struct {
Text string
NameFrom string
PhoneFrom string
PhoneChat string
IsFromMe bool
MediaType string
//NameTo string
IsGroup bool
ID string
TimeSent time.Time
}
func FillMessageWhatsapp(mess *events.Message) MessageWhatsapp {
Otvet := MessageWhatsapp{}
Otvet.ID = mess.Info.ID
Otvet.PhoneFrom = mess.Info.Sender.User
Otvet.IsFromMe = mess.Info.IsFromMe
Otvet.MediaType = mess.Info.MediaType
Otvet.NameFrom = mess.Info.PushName
Otvet.IsGroup = mess.Info.IsGroup
if mess.Message != nil && mess.Message.Conversation != nil {
//простое сообщение
Otvet.Text = *mess.Message.Conversation
} else if mess.Message != nil && mess.Message.ExtendedTextMessage != nil {
//сообщение ответ
Otvet.Text = *mess.Message.ExtendedTextMessage.Text
}
Otvet.PhoneChat = mess.Info.Chat.User
Otvet.TimeSent = mess.Info.Timestamp
return Otvet
}
// SendMessage - отправка сообщения в мессенджер Телеграм
// возвращает:
// id = id отправленного сообщения в WhatsApp
// err = error
func SendMessage(phone_send_to string, text string) (string, error) {
var id string
//var is_sent bool
TimeLimit()
log.Debug("phone_send_to: ", phone_send_to, " text: "+text)
//
ctxMain := context.Background()
ctx, cancel := context.WithTimeout(ctxMain, 120*time.Second)
defer cancel()
recipient, ok := ParseJID(phone_send_to)
if !ok {
text1 := "ParseJID() invalid JID: " + phone_send_to
log.Error(text1)
return id, errors.New(text1)
}
MessageID := whatsmeow.GenerateMessageID()
message1 := &waProto.Message{}
message1.Conversation = &text
_, err := clientWhatsApp.SendMessage(ctx, recipient, message1)
if err != nil {
text1 := "Message not sent, to: " + phone_send_to + " !"
log.Error(text1)
err = errors.New(text1)
return "", err
}
id = string(MessageID)
return id, nil
}
// eventHandler - получение событий из сервера whatsapp
func eventHandler_test(evt interface{}) {
if evt == nil {
log.Error("evt is null !")
}
switch v := evt.(type) {
case *events.Message:
mess := evt.(*events.Message)
messW := FillMessageWhatsapp(mess)
fmt.Println("Received a message from: ", messW.NameFrom, " phone: ", messW.PhoneFrom, "text: ", messW.Text)
//fmt.Println("Received a message: ", mess.Message, " from: ", v.Message.GetContactMessage(), "text: ", v.Info.MediaType)
default:
fmt.Printf("Received: %#v \n", v)
}
}
// Connect - создание клиента Whatsapp
func Connect(eventHandler func(evt interface{})) {
err := Connect_err(eventHandler)
if err != nil {
log.Panic("WHATSAPP Connect_err() error: ", err)
} else {
log.Info("WHATSAPP connected. Phone from: ", Settings.WHATSAPP_PHONE_FROM)
}
}
// Connect_err - создание клиента Whatsapp, и возвращает ошибку
func Connect_err(eventHandler func(evt interface{})) error {
if Settings.WHATSAPP_PHONE_FROM == "" {
FillSettings()
}
//ProgramDir := programdir.ProgramDir()
ProgramDir := micro.ProgramDir_Common()
filenameDB = ProgramDir + "whatsapp.db"
dbLog := waLog.Stdout("Database", "WARN", true)
container, err := sqlstore.New("sqlite3", "file:"+filenameDB+"?_foreign_keys=on", dbLog)
if err != nil {
panic(err)
}
// If you want multiple sessions, remember their JIDs and use .GetDevice(jid) or .GetAllDevices() instead.
deviceStore, err := container.GetFirstDevice()
if err != nil {
log.Panicln(err)
}
clientLog := waLog.Stdout("Client", "WARN", true)
clientWhatsApp = whatsmeow.NewClient(deviceStore, clientLog)
clientWhatsApp.AddEventHandler(eventHandler)
if clientWhatsApp.Store.ID == nil {
// No ID stored, new login
qrChan, _ := clientWhatsApp.GetQRChannel(context.Background())
err = clientWhatsApp.Connect()
if err != nil {
log.Panicln(err)
}
for evt := range qrChan {
if evt.Event == "code" {
// Render the QR code here
qrterminal.GenerateHalfBlock(evt.Code, qrterminal.L, os.Stdout)
// or just manually `echo 2@... | qrencode -t ansiutf8` in a terminal
log.Println("QR code:", evt.Code)
} else {
log.Println("Login event:", evt.Event)
}
}
} else {
// Already logged in, just connect
err = clientWhatsApp.Connect()
if err != nil {
log.Panicln(err)
}
}
stopapp.GetWaitGroup_Main().Add(1)
go WaitStop()
//StopWhatsApp()
return err
}
// StopWhatsApp - остановка работы клиента мессенджера Whatsapp
func StopWhatsApp() {
clientWhatsApp.Disconnect()
}
// WaitStop - ожидает отмену глобального контекста
func WaitStop() {
select {
case <-contextmain.GetContext().Done():
log.Warn("Context app is canceled.")
}
//
stopapp.WaitTotalMessagesSendingNow("whatsapp")
//
StopWhatsApp()
stopapp.GetWaitGroup_Main().Done()
}
// ParseJID parses a JID out of the given string. It supports both regular and AD JIDs.
func ParseJID(arg string) (types.JID, bool) {
if arg == "" {
return types.NewJID(arg, types.DefaultUserServer), false
}
if arg[0] == '+' {
arg = arg[1:]
}
if !strings.ContainsRune(arg, '@') {
return types.NewJID(arg, types.DefaultUserServer), true
} else {
recipient, err := types.ParseJID(arg)
if err != nil {
_ = fmt.Errorf("Invalid JID %s: %v", arg, err)
return recipient, false
} else if recipient.User == "" {
_ = fmt.Errorf("Invalid JID %s: no server specified", arg)
return recipient, false
}
return recipient, true
}
}
// TimeLimit - пауза для ограничения количество сообщений в секунду
func TimeLimit() {
//if MaxSendMessageCountIn1Second == 0 {
// return
//}
lastSendTime.Lock()
defer lastSendTime.Unlock()
if lastSendTime.time.IsZero() {
lastSendTime.time = time.Now()
return
}
t := time.Now()
ms := int(t.Sub(lastSendTime.time).Milliseconds())
msNeedWait := int(1000 / MaxSendMessageCountIn1Second)
if ms < msNeedWait {
micro.Sleep(msNeedWait - ms)
}
lastSendTime.time = time.Now()
}
// FillSettings загружает переменные окружения в структуру из файла или из переменных окружения
func FillSettings() {
Settings = SettingsINI{}
Settings.WHATSAPP_PHONE_FROM = os.Getenv("WHATSAPP_PHONE_FROM")
Settings.WHATSAPP_PHONE_SEND_TEST = os.Getenv("WHATSAPP_PHONE_SEND_TEST")
if Settings.WHATSAPP_PHONE_FROM == "" {
log.Panicln("Need fill WHATSAPP_PHONE_FROM ! in os.ENV ")
}
if Settings.WHATSAPP_PHONE_SEND_TEST == "" {
log.Panicln("Need fill WHATSAPP_PHONE_SEND_TEST ! in os.ENV ")
}
}
// Start - делает соединение с БД, отключение и др.
func Start(eventHandler func(evt interface{})) {
Connect(eventHandler)
stopapp.GetWaitGroup_Main().Add(1)
go WaitStop()
}
func (m MessageWhatsapp) String() string {
Otvet := ""
Otvet = Otvet + fmt.Sprint("Text: ", m.Text, "\n")
Otvet = Otvet + fmt.Sprint("NameFrom: ", m.NameFrom, "\n")
Otvet = Otvet + fmt.Sprint("PhoneFrom: ", m.PhoneFrom, "\n")
Otvet = Otvet + fmt.Sprint("PhoneChat: ", m.PhoneChat, "\n")
Otvet = Otvet + fmt.Sprint("IsFromMe: ", m.IsFromMe, "\n")
Otvet = Otvet + fmt.Sprint("MediaType: ", m.MediaType, "\n")
Otvet = Otvet + fmt.Sprint("IsGroup: ", m.IsGroup, "\n")
Otvet = Otvet + fmt.Sprint("ID: ", m.ID, "\n")
Otvet = Otvet + fmt.Sprint("TimeSent: ", m.TimeSent, "\n")
return Otvet
}

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Brett Vickers (beevik)
Felix Geisendörfer (felixge)
Kamil Kisiel (kisielk)
Graham King (grahamking)
Matt Smith (ma314smith)
Michal Jemala (michaljemala)
Nicolas Piganeau (npiganeau)
Chris Brown (ccbrown)
Earncef Sequeira (earncef)
Gabriel de Labachelerie (wuzuf)
Martin Dosch (mdosch)
Hugo Wetterberg (hugowetterberg)

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Copyright 2015-2023 Brett Vickers. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER ``AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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[![GoDoc](https://godoc.org/github.com/beevik/etree?status.svg)](https://godoc.org/github.com/beevik/etree)
etree
=====
The etree package is a lightweight, pure go package that expresses XML in
the form of an element tree. Its design was inspired by the Python
[ElementTree](http://docs.python.org/2/library/xml.etree.elementtree.html)
module.
Some of the package's capabilities and features:
* Represents XML documents as trees of elements for easy traversal.
* Imports, serializes, modifies or creates XML documents from scratch.
* Writes and reads XML to/from files, byte slices, strings and io interfaces.
* Performs simple or complex searches with lightweight XPath-like query APIs.
* Auto-indents XML using spaces or tabs for better readability.
* Implemented in pure go; depends only on standard go libraries.
* Built on top of the go [encoding/xml](http://golang.org/pkg/encoding/xml)
package.
### Creating an XML document
The following example creates an XML document from scratch using the etree
package and outputs its indented contents to stdout.
```go
doc := etree.NewDocument()
doc.CreateProcInst("xml", `version="1.0" encoding="UTF-8"`)
doc.CreateProcInst("xml-stylesheet", `type="text/xsl" href="style.xsl"`)
people := doc.CreateElement("People")
people.CreateComment("These are all known people")
jon := people.CreateElement("Person")
jon.CreateAttr("name", "Jon")
sally := people.CreateElement("Person")
sally.CreateAttr("name", "Sally")
doc.Indent(2)
doc.WriteTo(os.Stdout)
```
Output:
```xml
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="style.xsl"?>
<People>
<!--These are all known people-->
<Person name="Jon"/>
<Person name="Sally"/>
</People>
```
### Reading an XML file
Suppose you have a file on disk called `bookstore.xml` containing the
following data:
```xml
<bookstore xmlns:p="urn:schemas-books-com:prices">
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<p:price>30.00</p:price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<p:price>29.99</p:price>
</book>
<book category="WEB">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<p:price>49.99</p:price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<p:price>39.95</p:price>
</book>
</bookstore>
```
This code reads the file's contents into an etree document.
```go
doc := etree.NewDocument()
if err := doc.ReadFromFile("bookstore.xml"); err != nil {
panic(err)
}
```
You can also read XML from a string, a byte slice, or an `io.Reader`.
### Processing elements and attributes
This example illustrates several ways to access elements and attributes using
etree selection queries.
```go
root := doc.SelectElement("bookstore")
fmt.Println("ROOT element:", root.Tag)
for _, book := range root.SelectElements("book") {
fmt.Println("CHILD element:", book.Tag)
if title := book.SelectElement("title"); title != nil {
lang := title.SelectAttrValue("lang", "unknown")
fmt.Printf(" TITLE: %s (%s)\n", title.Text(), lang)
}
for _, attr := range book.Attr {
fmt.Printf(" ATTR: %s=%s\n", attr.Key, attr.Value)
}
}
```
Output:
```
ROOT element: bookstore
CHILD element: book
TITLE: Everyday Italian (en)
ATTR: category=COOKING
CHILD element: book
TITLE: Harry Potter (en)
ATTR: category=CHILDREN
CHILD element: book
TITLE: XQuery Kick Start (en)
ATTR: category=WEB
CHILD element: book
TITLE: Learning XML (en)
ATTR: category=WEB
```
### Path queries
This example uses etree's path functions to select all book titles that fall
into the category of 'WEB'. The double-slash prefix in the path causes the
search for book elements to occur recursively; book elements may appear at any
level of the XML hierarchy.
```go
for _, t := range doc.FindElements("//book[@category='WEB']/title") {
fmt.Println("Title:", t.Text())
}
```
Output:
```
Title: XQuery Kick Start
Title: Learning XML
```
This example finds the first book element under the root bookstore element and
outputs the tag and text of each of its child elements.
```go
for _, e := range doc.FindElements("./bookstore/book[1]/*") {
fmt.Printf("%s: %s\n", e.Tag, e.Text())
}
```
Output:
```
title: Everyday Italian
author: Giada De Laurentiis
year: 2005
price: 30.00
```
This example finds all books with a price of 49.99 and outputs their titles.
```go
path := etree.MustCompilePath("./bookstore/book[p:price='49.99']/title")
for _, e := range doc.FindElementsPath(path) {
fmt.Println(e.Text())
}
```
Output:
```
XQuery Kick Start
```
Note that this example uses the FindElementsPath function, which takes as an
argument a pre-compiled path object. Use precompiled paths when you plan to
search with the same path more than once.
### Other features
These are just a few examples of the things the etree package can do. See the
[documentation](http://godoc.org/github.com/beevik/etree) for a complete
description of its capabilities.
### Contributing
This project accepts contributions. Just fork the repo and submit a pull
request!

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Release v1.2.0
==============
**New Features**
* Add the ability to write XML fragments using Token WriteTo functions.
* Add the ability to re-indent an XML element as though it were the root of
the document.
* Add a ReadSettings option to preserve CDATA blocks when reading and XML
document.
Release v1.1.4
==============
**New Features**
* Add the ability to preserve whitespace in leaf elements during indent.
* Add the ability to suppress a document-trailing newline during indent.
* Add choice of XML attribute quoting style (single-quote or double-quote).
**Removed Features**
* Removed the CDATA preservation change introduced in v1.1.3. It was
implemented in a way that broke the ability to process XML documents
encoded using non-UTF8 character sets.
Release v1.1.3
==============
* XML reads now preserve CDATA sections instead of converting them to
standard character data.
Release v1.1.2
==============
* Fixed a path parsing bug.
* The `Element.Text` function now handles comments embedded between
character data spans.
Release v1.1.1
==============
* Updated go version in `go.mod` to 1.20
Release v1.1.0
==============
**New Features**
* New attribute helpers.
* Added the `Element.SortAttrs` method, which lexicographically sorts an
element's attributes by key.
* New `ReadSettings` properties.
* Added `Entity` for the support of custom entity maps.
* New `WriteSettings` properties.
* Added `UseCRLF` to allow the output of CR-LF newlines instead of the
default LF newlines. This is useful on Windows systems.
* Additional support for text and CDATA sections.
* The `Element.Text` method now returns the concatenation of all consecutive
character data tokens immediately following an element's opening tag.
* Added `Element.SetCData` to replace the character data immediately
following an element's opening tag with a CDATA section.
* Added `Element.CreateCData` to create and add a CDATA section child
`CharData` token to an element.
* Added `Element.CreateText` to create and add a child text `CharData` token
to an element.
* Added `NewCData` to create a parentless CDATA section `CharData` token.
* Added `NewText` to create a parentless text `CharData`
token.
* Added `CharData.IsCData` to detect if the token contains a CDATA section.
* Added `CharData.IsWhitespace` to detect if the token contains whitespace
inserted by one of the document Indent functions.
* Modified `Element.SetText` so that it replaces a run of consecutive
character data tokens following the element's opening tag (instead of just
the first one).
* New "tail text" support.
* Added the `Element.Tail` method, which returns the text immediately
following an element's closing tag.
* Added the `Element.SetTail` method, which modifies the text immediately
following an element's closing tag.
* New element child insertion and removal methods.
* Added the `Element.InsertChildAt` method, which inserts a new child token
before the specified child token index.
* Added the `Element.RemoveChildAt` method, which removes the child token at
the specified child token index.
* New element and attribute queries.
* Added the `Element.Index` method, which returns the element's index within
its parent element's child token list.
* Added the `Element.NamespaceURI` method to return the namespace URI
associated with an element.
* Added the `Attr.NamespaceURI` method to return the namespace URI
associated with an element.
* Added the `Attr.Element` method to return the element that an attribute
belongs to.
* New Path filter functions.
* Added `[local-name()='val']` to keep elements whose unprefixed tag matches
the desired value.
* Added `[name()='val']` to keep elements whose full tag matches the desired
value.
* Added `[namespace-prefix()='val']` to keep elements whose namespace prefix
matches the desired value.
* Added `[namespace-uri()='val']` to keep elements whose namespace URI
matches the desired value.
**Bug Fixes**
* A default XML `CharSetReader` is now used to prevent failed parsing of XML
documents using certain encodings.
([Issue](https://github.com/beevik/etree/issues/53)).
* All characters are now properly escaped according to XML parsing rules.
([Issue](https://github.com/beevik/etree/issues/55)).
* The `Document.Indent` and `Document.IndentTabs` functions no longer insert
empty string `CharData` tokens.
**Deprecated**
* `Element`
* The `InsertChild` method is deprecated. Use `InsertChildAt` instead.
* The `CreateCharData` method is deprecated. Use `CreateText` instead.
* `CharData`
* The `NewCharData` method is deprecated. Use `NewText` instead.
Release v1.0.1
==============
**Changes**
* Added support for absolute etree Path queries. An absolute path begins with
`/` or `//` and begins its search from the element's document root.
* Added [`GetPath`](https://godoc.org/github.com/beevik/etree#Element.GetPath)
and [`GetRelativePath`](https://godoc.org/github.com/beevik/etree#Element.GetRelativePath)
functions to the [`Element`](https://godoc.org/github.com/beevik/etree#Element)
type.
**Breaking changes**
* A path starting with `//` is now interpreted as an absolute path.
Previously, it was interpreted as a relative path starting from the element
whose
[`FindElement`](https://godoc.org/github.com/beevik/etree#Element.FindElement)
method was called. To remain compatible with this release, all paths
prefixed with `//` should be prefixed with `.//` when called from any
element other than the document's root.
* [**edit 2/1/2019**]: Minor releases should not contain breaking changes.
Even though this breaking change was very minor, it was a mistake to include
it in this minor release. In the future, all breaking changes will be
limited to major releases (e.g., version 2.0.0).
Release v1.0.0
==============
Initial release.

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// Copyright 2015-2019 Brett Vickers.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package etree
import (
"io"
"strings"
"unicode/utf8"
)
// A simple stack
type stack struct {
data []interface{}
}
func (s *stack) empty() bool {
return len(s.data) == 0
}
func (s *stack) push(value interface{}) {
s.data = append(s.data, value)
}
func (s *stack) pop() interface{} {
value := s.data[len(s.data)-1]
s.data[len(s.data)-1] = nil
s.data = s.data[:len(s.data)-1]
return value
}
func (s *stack) peek() interface{} {
return s.data[len(s.data)-1]
}
// A fifo is a simple first-in-first-out queue.
type fifo struct {
data []interface{}
head, tail int
}
func (f *fifo) add(value interface{}) {
if f.len()+1 >= len(f.data) {
f.grow()
}
f.data[f.tail] = value
if f.tail++; f.tail == len(f.data) {
f.tail = 0
}
}
func (f *fifo) remove() interface{} {
value := f.data[f.head]
f.data[f.head] = nil
if f.head++; f.head == len(f.data) {
f.head = 0
}
return value
}
func (f *fifo) len() int {
if f.tail >= f.head {
return f.tail - f.head
}
return len(f.data) - f.head + f.tail
}
func (f *fifo) grow() {
c := len(f.data) * 2
if c == 0 {
c = 4
}
buf, count := make([]interface{}, c), f.len()
if f.tail >= f.head {
copy(buf[0:count], f.data[f.head:f.tail])
} else {
hindex := len(f.data) - f.head
copy(buf[0:hindex], f.data[f.head:])
copy(buf[hindex:count], f.data[:f.tail])
}
f.data, f.head, f.tail = buf, 0, count
}
// xmlReader provides the interface by which an XML byte stream is
// processed and decoded.
type xmlReader interface {
Bytes() int64
Read(p []byte) (n int, err error)
}
// xmlSimpleReader implements a proxy reader that counts the number of
// bytes read from its encapsulated reader.
type xmlSimpleReader struct {
r io.Reader
bytes int64
}
func newXmlSimpleReader(r io.Reader) xmlReader {
return &xmlSimpleReader{r, 0}
}
func (xr *xmlSimpleReader) Bytes() int64 {
return xr.bytes
}
func (xr *xmlSimpleReader) Read(p []byte) (n int, err error) {
n, err = xr.r.Read(p)
xr.bytes += int64(n)
return n, err
}
// xmlPeekReader implements a proxy reader that counts the number of
// bytes read from its encapsulated reader. It also allows the caller to
// "peek" at the previous portions of the buffer after they have been
// parsed.
type xmlPeekReader struct {
r io.Reader
bytes int64 // total bytes read by the Read function
buf []byte // internal read buffer
bufSize int // total bytes used in the read buffer
bufOffset int64 // total bytes read when buf was last filled
window []byte // current read buffer window
peekBuf []byte // buffer used to store data to be peeked at later
peekOffset int64 // total read offset of the start of the peek buffer
}
func newXmlPeekReader(r io.Reader) *xmlPeekReader {
buf := make([]byte, 4096)
return &xmlPeekReader{
r: r,
bytes: 0,
buf: buf,
bufSize: 0,
bufOffset: 0,
window: buf[0:0],
peekBuf: make([]byte, 0),
peekOffset: -1,
}
}
func (xr *xmlPeekReader) Bytes() int64 {
return xr.bytes
}
func (xr *xmlPeekReader) Read(p []byte) (n int, err error) {
if len(xr.window) == 0 {
err = xr.fill()
if err != nil {
return 0, err
}
if len(xr.window) == 0 {
return 0, nil
}
}
if len(xr.window) < len(p) {
n = len(xr.window)
} else {
n = len(p)
}
copy(p, xr.window)
xr.window = xr.window[n:]
xr.bytes += int64(n)
return n, err
}
func (xr *xmlPeekReader) PeekPrepare(offset int64, maxLen int) {
if maxLen > cap(xr.peekBuf) {
xr.peekBuf = make([]byte, 0, maxLen)
}
xr.peekBuf = xr.peekBuf[0:0]
xr.peekOffset = offset
xr.updatePeekBuf()
}
func (xr *xmlPeekReader) PeekFinalize() []byte {
xr.updatePeekBuf()
return xr.peekBuf
}
func (xr *xmlPeekReader) fill() error {
xr.bufOffset = xr.bytes
xr.bufSize = 0
n, err := xr.r.Read(xr.buf)
if err != nil {
xr.window, xr.bufSize = xr.buf[0:0], 0
return err
}
xr.window, xr.bufSize = xr.buf[:n], n
xr.updatePeekBuf()
return nil
}
func (xr *xmlPeekReader) updatePeekBuf() {
peekRemain := cap(xr.peekBuf) - len(xr.peekBuf)
if xr.peekOffset >= 0 && peekRemain > 0 {
rangeMin := xr.peekOffset
rangeMax := xr.peekOffset + int64(cap(xr.peekBuf))
bufMin := xr.bufOffset
bufMax := xr.bufOffset + int64(xr.bufSize)
if rangeMin < bufMin {
rangeMin = bufMin
}
if rangeMax > bufMax {
rangeMax = bufMax
}
if rangeMax > rangeMin {
rangeMin -= xr.bufOffset
rangeMax -= xr.bufOffset
if int(rangeMax-rangeMin) > peekRemain {
rangeMax = rangeMin + int64(peekRemain)
}
xr.peekBuf = append(xr.peekBuf, xr.buf[rangeMin:rangeMax]...)
}
}
}
// xmlWriter implements a proxy writer that counts the number of
// bytes written by its encapsulated writer.
type xmlWriter struct {
w io.Writer
bytes int64
}
func newXmlWriter(w io.Writer) *xmlWriter {
return &xmlWriter{w: w}
}
func (xw *xmlWriter) Write(p []byte) (n int, err error) {
n, err = xw.w.Write(p)
xw.bytes += int64(n)
return n, err
}
// isWhitespace returns true if the byte slice contains only
// whitespace characters.
func isWhitespace(s string) bool {
for i := 0; i < len(s); i++ {
if c := s[i]; c != ' ' && c != '\t' && c != '\n' && c != '\r' {
return false
}
}
return true
}
// spaceMatch returns true if namespace a is the empty string
// or if namespace a equals namespace b.
func spaceMatch(a, b string) bool {
switch {
case a == "":
return true
default:
return a == b
}
}
// spaceDecompose breaks a namespace:tag identifier at the ':'
// and returns the two parts.
func spaceDecompose(str string) (space, key string) {
colon := strings.IndexByte(str, ':')
if colon == -1 {
return "", str
}
return str[:colon], str[colon+1:]
}
// Strings used by indentCRLF and indentLF
const (
indentSpaces = "\r\n "
indentTabs = "\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"
)
// indentCRLF returns a CRLF newline followed by n copies of the first
// non-CRLF character in the source string.
func indentCRLF(n int, source string) string {
switch {
case n < 0:
return source[:2]
case n < len(source)-1:
return source[:n+2]
default:
return source + strings.Repeat(source[2:3], n-len(source)+2)
}
}
// indentLF returns a LF newline followed by n copies of the first non-LF
// character in the source string.
func indentLF(n int, source string) string {
switch {
case n < 0:
return source[1:2]
case n < len(source)-1:
return source[1 : n+2]
default:
return source[1:] + strings.Repeat(source[2:3], n-len(source)+2)
}
}
// nextIndex returns the index of the next occurrence of sep in s,
// starting from offset. It returns -1 if the sep string is not found.
func nextIndex(s, sep string, offset int) int {
switch i := strings.Index(s[offset:], sep); i {
case -1:
return -1
default:
return offset + i
}
}
// isInteger returns true if the string s contains an integer.
func isInteger(s string) bool {
for i := 0; i < len(s); i++ {
if (s[i] < '0' || s[i] > '9') && !(i == 0 && s[i] == '-') {
return false
}
}
return true
}
type escapeMode byte
const (
escapeNormal escapeMode = iota
escapeCanonicalText
escapeCanonicalAttr
)
// escapeString writes an escaped version of a string to the writer.
func escapeString(w Writer, s string, m escapeMode) {
var esc []byte
last := 0
for i := 0; i < len(s); {
r, width := utf8.DecodeRuneInString(s[i:])
i += width
switch r {
case '&':
esc = []byte("&amp;")
case '<':
esc = []byte("&lt;")
case '>':
if m == escapeCanonicalAttr {
continue
}
esc = []byte("&gt;")
case '\'':
if m != escapeNormal {
continue
}
esc = []byte("&apos;")
case '"':
if m == escapeCanonicalText {
continue
}
esc = []byte("&quot;")
case '\t':
if m != escapeCanonicalAttr {
continue
}
esc = []byte("&#x9;")
case '\n':
if m != escapeCanonicalAttr {
continue
}
esc = []byte("&#xA;")
case '\r':
if m == escapeNormal {
continue
}
esc = []byte("&#xD;")
default:
if !isInCharacterRange(r) || (r == 0xFFFD && width == 1) {
esc = []byte("\uFFFD")
break
}
continue
}
w.WriteString(s[last : i-width])
w.Write(esc)
last = i
}
w.WriteString(s[last:])
}
func isInCharacterRange(r rune) bool {
return r == 0x09 ||
r == 0x0A ||
r == 0x0D ||
r >= 0x20 && r <= 0xD7FF ||
r >= 0xE000 && r <= 0xFFFD ||
r >= 0x10000 && r <= 0x10FFFF
}

586
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// Copyright 2015-2019 Brett Vickers.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package etree
import (
"strconv"
"strings"
)
/*
A Path is a string that represents a search path through an etree starting
from the document root or an arbitrary element. Paths are used with the
Element object's Find* methods to locate and return desired elements.
A Path consists of a series of slash-separated "selectors", each of which may
be modified by one or more bracket-enclosed "filters". Selectors are used to
traverse the etree from element to element, while filters are used to narrow
the list of candidate elements at each node.
Although etree Path strings are structurally and behaviorally similar to XPath
strings (https://www.w3.org/TR/1999/REC-xpath-19991116/), they have a more
limited set of selectors and filtering options.
The following selectors are supported by etree paths:
. Select the current element.
.. Select the parent of the current element.
* Select all child elements of the current element.
/ Select the root element when used at the start of a path.
// Select all descendants of the current element.
tag Select all child elements with a name matching the tag.
The following basic filters are supported:
[@attrib] Keep elements with an attribute named attrib.
[@attrib='val'] Keep elements with an attribute named attrib and value matching val.
[tag] Keep elements with a child element named tag.
[tag='val'] Keep elements with a child element named tag and text matching val.
[n] Keep the n-th element, where n is a numeric index starting from 1.
The following function-based filters are supported:
[text()] Keep elements with non-empty text.
[text()='val'] Keep elements whose text matches val.
[local-name()='val'] Keep elements whose un-prefixed tag matches val.
[name()='val'] Keep elements whose full tag exactly matches val.
[namespace-prefix()] Keep elements with non-empty namespace prefixes.
[namespace-prefix()='val'] Keep elements whose namespace prefix matches val.
[namespace-uri()] Keep elements with non-empty namespace URIs.
[namespace-uri()='val'] Keep elements whose namespace URI matches val.
Below are some examples of etree path strings.
Select the bookstore child element of the root element:
/bookstore
Beginning from the root element, select the title elements of all descendant
book elements having a 'category' attribute of 'WEB':
//book[@category='WEB']/title
Beginning from the current element, select the first descendant book element
with a title child element containing the text 'Great Expectations':
.//book[title='Great Expectations'][1]
Beginning from the current element, select all child elements of book elements
with an attribute 'language' set to 'english':
./book/*[@language='english']
Beginning from the current element, select all child elements of book elements
containing the text 'special':
./book/*[text()='special']
Beginning from the current element, select all descendant book elements whose
title child element has a 'language' attribute of 'french':
.//book/title[@language='french']/..
Beginning from the current element, select all descendant book elements
belonging to the http://www.w3.org/TR/html4/ namespace:
.//book[namespace-uri()='http://www.w3.org/TR/html4/']
*/
type Path struct {
segments []segment
}
// ErrPath is returned by path functions when an invalid etree path is provided.
type ErrPath string
// Error returns the string describing a path error.
func (err ErrPath) Error() string {
return "etree: " + string(err)
}
// CompilePath creates an optimized version of an XPath-like string that
// can be used to query elements in an element tree.
func CompilePath(path string) (Path, error) {
var comp compiler
segments := comp.parsePath(path)
if comp.err != ErrPath("") {
return Path{nil}, comp.err
}
return Path{segments}, nil
}
// MustCompilePath creates an optimized version of an XPath-like string that
// can be used to query elements in an element tree. Panics if an error
// occurs. Use this function to create Paths when you know the path is
// valid (i.e., if it's hard-coded).
func MustCompilePath(path string) Path {
p, err := CompilePath(path)
if err != nil {
panic(err)
}
return p
}
// A segment is a portion of a path between "/" characters.
// It contains one selector and zero or more [filters].
type segment struct {
sel selector
filters []filter
}
func (seg *segment) apply(e *Element, p *pather) {
seg.sel.apply(e, p)
for _, f := range seg.filters {
f.apply(p)
}
}
// A selector selects XML elements for consideration by the
// path traversal.
type selector interface {
apply(e *Element, p *pather)
}
// A filter pares down a list of candidate XML elements based
// on a path filter in [brackets].
type filter interface {
apply(p *pather)
}
// A pather is helper object that traverses an element tree using
// a Path object. It collects and deduplicates all elements matching
// the path query.
type pather struct {
queue fifo
results []*Element
inResults map[*Element]bool
candidates []*Element
scratch []*Element // used by filters
}
// A node represents an element and the remaining path segments that
// should be applied against it by the pather.
type node struct {
e *Element
segments []segment
}
func newPather() *pather {
return &pather{
results: make([]*Element, 0),
inResults: make(map[*Element]bool),
candidates: make([]*Element, 0),
scratch: make([]*Element, 0),
}
}
// traverse follows the path from the element e, collecting
// and then returning all elements that match the path's selectors
// and filters.
func (p *pather) traverse(e *Element, path Path) []*Element {
for p.queue.add(node{e, path.segments}); p.queue.len() > 0; {
p.eval(p.queue.remove().(node))
}
return p.results
}
// eval evaluates the current path node by applying the remaining
// path's selector rules against the node's element.
func (p *pather) eval(n node) {
p.candidates = p.candidates[0:0]
seg, remain := n.segments[0], n.segments[1:]
seg.apply(n.e, p)
if len(remain) == 0 {
for _, c := range p.candidates {
if in := p.inResults[c]; !in {
p.inResults[c] = true
p.results = append(p.results, c)
}
}
} else {
for _, c := range p.candidates {
p.queue.add(node{c, remain})
}
}
}
// A compiler generates a compiled path from a path string.
type compiler struct {
err ErrPath
}
// parsePath parses an XPath-like string describing a path
// through an element tree and returns a slice of segment
// descriptors.
func (c *compiler) parsePath(path string) []segment {
// If path ends with //, fix it
if strings.HasSuffix(path, "//") {
path += "*"
}
var segments []segment
// Check for an absolute path
if strings.HasPrefix(path, "/") {
segments = append(segments, segment{new(selectRoot), []filter{}})
path = path[1:]
}
// Split path into segments
for _, s := range splitPath(path) {
segments = append(segments, c.parseSegment(s))
if c.err != ErrPath("") {
break
}
}
return segments
}
func splitPath(path string) []string {
var pieces []string
start := 0
inquote := false
for i := 0; i+1 <= len(path); i++ {
if path[i] == '\'' {
inquote = !inquote
} else if path[i] == '/' && !inquote {
pieces = append(pieces, path[start:i])
start = i + 1
}
}
return append(pieces, path[start:])
}
// parseSegment parses a path segment between / characters.
func (c *compiler) parseSegment(path string) segment {
pieces := strings.Split(path, "[")
seg := segment{
sel: c.parseSelector(pieces[0]),
filters: []filter{},
}
for i := 1; i < len(pieces); i++ {
fpath := pieces[i]
if len(fpath) == 0 || fpath[len(fpath)-1] != ']' {
c.err = ErrPath("path has invalid filter [brackets].")
break
}
seg.filters = append(seg.filters, c.parseFilter(fpath[:len(fpath)-1]))
}
return seg
}
// parseSelector parses a selector at the start of a path segment.
func (c *compiler) parseSelector(path string) selector {
switch path {
case ".":
return new(selectSelf)
case "..":
return new(selectParent)
case "*":
return new(selectChildren)
case "":
return new(selectDescendants)
default:
return newSelectChildrenByTag(path)
}
}
var fnTable = map[string]func(e *Element) string{
"local-name": (*Element).name,
"name": (*Element).FullTag,
"namespace-prefix": (*Element).namespacePrefix,
"namespace-uri": (*Element).NamespaceURI,
"text": (*Element).Text,
}
// parseFilter parses a path filter contained within [brackets].
func (c *compiler) parseFilter(path string) filter {
if len(path) == 0 {
c.err = ErrPath("path contains an empty filter expression.")
return nil
}
// Filter contains [@attr='val'], [fn()='val'], or [tag='val']?
eqindex := strings.Index(path, "='")
if eqindex >= 0 {
rindex := nextIndex(path, "'", eqindex+2)
if rindex != len(path)-1 {
c.err = ErrPath("path has mismatched filter quotes.")
return nil
}
key := path[:eqindex]
value := path[eqindex+2 : rindex]
switch {
case key[0] == '@':
return newFilterAttrVal(key[1:], value)
case strings.HasSuffix(key, "()"):
name := key[:len(key)-2]
if fn, ok := fnTable[name]; ok {
return newFilterFuncVal(fn, value)
}
c.err = ErrPath("path has unknown function " + name)
return nil
default:
return newFilterChildText(key, value)
}
}
// Filter contains [@attr], [N], [tag] or [fn()]
switch {
case path[0] == '@':
return newFilterAttr(path[1:])
case strings.HasSuffix(path, "()"):
name := path[:len(path)-2]
if fn, ok := fnTable[name]; ok {
return newFilterFunc(fn)
}
c.err = ErrPath("path has unknown function " + name)
return nil
case isInteger(path):
pos, _ := strconv.Atoi(path)
switch {
case pos > 0:
return newFilterPos(pos - 1)
default:
return newFilterPos(pos)
}
default:
return newFilterChild(path)
}
}
// selectSelf selects the current element into the candidate list.
type selectSelf struct{}
func (s *selectSelf) apply(e *Element, p *pather) {
p.candidates = append(p.candidates, e)
}
// selectRoot selects the element's root node.
type selectRoot struct{}
func (s *selectRoot) apply(e *Element, p *pather) {
root := e
for root.parent != nil {
root = root.parent
}
p.candidates = append(p.candidates, root)
}
// selectParent selects the element's parent into the candidate list.
type selectParent struct{}
func (s *selectParent) apply(e *Element, p *pather) {
if e.parent != nil {
p.candidates = append(p.candidates, e.parent)
}
}
// selectChildren selects the element's child elements into the
// candidate list.
type selectChildren struct{}
func (s *selectChildren) apply(e *Element, p *pather) {
for _, c := range e.Child {
if c, ok := c.(*Element); ok {
p.candidates = append(p.candidates, c)
}
}
}
// selectDescendants selects all descendant child elements
// of the element into the candidate list.
type selectDescendants struct{}
func (s *selectDescendants) apply(e *Element, p *pather) {
var queue fifo
for queue.add(e); queue.len() > 0; {
e := queue.remove().(*Element)
p.candidates = append(p.candidates, e)
for _, c := range e.Child {
if c, ok := c.(*Element); ok {
queue.add(c)
}
}
}
}
// selectChildrenByTag selects into the candidate list all child
// elements of the element having the specified tag.
type selectChildrenByTag struct {
space, tag string
}
func newSelectChildrenByTag(path string) *selectChildrenByTag {
s, l := spaceDecompose(path)
return &selectChildrenByTag{s, l}
}
func (s *selectChildrenByTag) apply(e *Element, p *pather) {
for _, c := range e.Child {
if c, ok := c.(*Element); ok && spaceMatch(s.space, c.Space) && s.tag == c.Tag {
p.candidates = append(p.candidates, c)
}
}
}
// filterPos filters the candidate list, keeping only the
// candidate at the specified index.
type filterPos struct {
index int
}
func newFilterPos(pos int) *filterPos {
return &filterPos{pos}
}
func (f *filterPos) apply(p *pather) {
if f.index >= 0 {
if f.index < len(p.candidates) {
p.scratch = append(p.scratch, p.candidates[f.index])
}
} else {
if -f.index <= len(p.candidates) {
p.scratch = append(p.scratch, p.candidates[len(p.candidates)+f.index])
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}
// filterAttr filters the candidate list for elements having
// the specified attribute.
type filterAttr struct {
space, key string
}
func newFilterAttr(str string) *filterAttr {
s, l := spaceDecompose(str)
return &filterAttr{s, l}
}
func (f *filterAttr) apply(p *pather) {
for _, c := range p.candidates {
for _, a := range c.Attr {
if spaceMatch(f.space, a.Space) && f.key == a.Key {
p.scratch = append(p.scratch, c)
break
}
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}
// filterAttrVal filters the candidate list for elements having
// the specified attribute with the specified value.
type filterAttrVal struct {
space, key, val string
}
func newFilterAttrVal(str, value string) *filterAttrVal {
s, l := spaceDecompose(str)
return &filterAttrVal{s, l, value}
}
func (f *filterAttrVal) apply(p *pather) {
for _, c := range p.candidates {
for _, a := range c.Attr {
if spaceMatch(f.space, a.Space) && f.key == a.Key && f.val == a.Value {
p.scratch = append(p.scratch, c)
break
}
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}
// filterFunc filters the candidate list for elements satisfying a custom
// boolean function.
type filterFunc struct {
fn func(e *Element) string
}
func newFilterFunc(fn func(e *Element) string) *filterFunc {
return &filterFunc{fn}
}
func (f *filterFunc) apply(p *pather) {
for _, c := range p.candidates {
if f.fn(c) != "" {
p.scratch = append(p.scratch, c)
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}
// filterFuncVal filters the candidate list for elements containing a value
// matching the result of a custom function.
type filterFuncVal struct {
fn func(e *Element) string
val string
}
func newFilterFuncVal(fn func(e *Element) string, value string) *filterFuncVal {
return &filterFuncVal{fn, value}
}
func (f *filterFuncVal) apply(p *pather) {
for _, c := range p.candidates {
if f.fn(c) == f.val {
p.scratch = append(p.scratch, c)
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}
// filterChild filters the candidate list for elements having
// a child element with the specified tag.
type filterChild struct {
space, tag string
}
func newFilterChild(str string) *filterChild {
s, l := spaceDecompose(str)
return &filterChild{s, l}
}
func (f *filterChild) apply(p *pather) {
for _, c := range p.candidates {
for _, cc := range c.Child {
if cc, ok := cc.(*Element); ok &&
spaceMatch(f.space, cc.Space) &&
f.tag == cc.Tag {
p.scratch = append(p.scratch, c)
}
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}
// filterChildText filters the candidate list for elements having
// a child element with the specified tag and text.
type filterChildText struct {
space, tag, text string
}
func newFilterChildText(str, text string) *filterChildText {
s, l := spaceDecompose(str)
return &filterChildText{s, l, text}
}
func (f *filterChildText) apply(p *pather) {
for _, c := range p.candidates {
for _, cc := range c.Child {
if cc, ok := cc.(*Element); ok &&
spaceMatch(f.space, cc.Space) &&
f.tag == cc.Tag &&
f.text == cc.Text() {
p.scratch = append(p.scratch, c)
}
}
}
p.candidates, p.scratch = p.scratch, p.candidates[0:0]
}

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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
.idea/
*.iml

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# This is the official list of Gorilla WebSocket authors for copyright
# purposes.
#
# Please keep the list sorted.
Gary Burd <gary@beagledreams.com>
Google LLC (https://opensource.google.com/)
Joachim Bauch <mail@joachim-bauch.de>

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Copyright (c) 2013 The Gorilla WebSocket Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# Gorilla WebSocket
[![GoDoc](https://godoc.org/github.com/gorilla/websocket?status.svg)](https://godoc.org/github.com/gorilla/websocket)
[![CircleCI](https://circleci.com/gh/gorilla/websocket.svg?style=svg)](https://circleci.com/gh/gorilla/websocket)
Gorilla WebSocket is a [Go](http://golang.org/) implementation of the
[WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol.
---
⚠️ **[The Gorilla WebSocket Package is looking for a new maintainer](https://github.com/gorilla/websocket/issues/370)**
---
### Documentation
* [API Reference](https://pkg.go.dev/github.com/gorilla/websocket?tab=doc)
* [Chat example](https://github.com/gorilla/websocket/tree/master/examples/chat)
* [Command example](https://github.com/gorilla/websocket/tree/master/examples/command)
* [Client and server example](https://github.com/gorilla/websocket/tree/master/examples/echo)
* [File watch example](https://github.com/gorilla/websocket/tree/master/examples/filewatch)
### Status
The Gorilla WebSocket package provides a complete and tested implementation of
the [WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol. The
package API is stable.
### Installation
go get github.com/gorilla/websocket
### Protocol Compliance
The Gorilla WebSocket package passes the server tests in the [Autobahn Test
Suite](https://github.com/crossbario/autobahn-testsuite) using the application in the [examples/autobahn
subdirectory](https://github.com/gorilla/websocket/tree/master/examples/autobahn).

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// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package websocket
import (
"bytes"
"context"
"crypto/tls"
"errors"
"io"
"io/ioutil"
"net"
"net/http"
"net/http/httptrace"
"net/url"
"strings"
"time"
)
// ErrBadHandshake is returned when the server response to opening handshake is
// invalid.
var ErrBadHandshake = errors.New("websocket: bad handshake")
var errInvalidCompression = errors.New("websocket: invalid compression negotiation")
// NewClient creates a new client connection using the given net connection.
// The URL u specifies the host and request URI. Use requestHeader to specify
// the origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies
// (Cookie). Use the response.Header to get the selected subprotocol
// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
//
// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
// non-nil *http.Response so that callers can handle redirects, authentication,
// etc.
//
// Deprecated: Use Dialer instead.
func NewClient(netConn net.Conn, u *url.URL, requestHeader http.Header, readBufSize, writeBufSize int) (c *Conn, response *http.Response, err error) {
d := Dialer{
ReadBufferSize: readBufSize,
WriteBufferSize: writeBufSize,
NetDial: func(net, addr string) (net.Conn, error) {
return netConn, nil
},
}
return d.Dial(u.String(), requestHeader)
}
// A Dialer contains options for connecting to WebSocket server.
//
// It is safe to call Dialer's methods concurrently.
type Dialer struct {
// NetDial specifies the dial function for creating TCP connections. If
// NetDial is nil, net.Dial is used.
NetDial func(network, addr string) (net.Conn, error)
// NetDialContext specifies the dial function for creating TCP connections. If
// NetDialContext is nil, NetDial is used.
NetDialContext func(ctx context.Context, network, addr string) (net.Conn, error)
// NetDialTLSContext specifies the dial function for creating TLS/TCP connections. If
// NetDialTLSContext is nil, NetDialContext is used.
// If NetDialTLSContext is set, Dial assumes the TLS handshake is done there and
// TLSClientConfig is ignored.
NetDialTLSContext func(ctx context.Context, network, addr string) (net.Conn, error)
// Proxy specifies a function to return a proxy for a given
// Request. If the function returns a non-nil error, the
// request is aborted with the provided error.
// If Proxy is nil or returns a nil *URL, no proxy is used.
Proxy func(*http.Request) (*url.URL, error)
// TLSClientConfig specifies the TLS configuration to use with tls.Client.
// If nil, the default configuration is used.
// If either NetDialTLS or NetDialTLSContext are set, Dial assumes the TLS handshake
// is done there and TLSClientConfig is ignored.
TLSClientConfig *tls.Config
// HandshakeTimeout specifies the duration for the handshake to complete.
HandshakeTimeout time.Duration
// ReadBufferSize and WriteBufferSize specify I/O buffer sizes in bytes. If a buffer
// size is zero, then a useful default size is used. The I/O buffer sizes
// do not limit the size of the messages that can be sent or received.
ReadBufferSize, WriteBufferSize int
// WriteBufferPool is a pool of buffers for write operations. If the value
// is not set, then write buffers are allocated to the connection for the
// lifetime of the connection.
//
// A pool is most useful when the application has a modest volume of writes
// across a large number of connections.
//
// Applications should use a single pool for each unique value of
// WriteBufferSize.
WriteBufferPool BufferPool
// Subprotocols specifies the client's requested subprotocols.
Subprotocols []string
// EnableCompression specifies if the client should attempt to negotiate
// per message compression (RFC 7692). Setting this value to true does not
// guarantee that compression will be supported. Currently only "no context
// takeover" modes are supported.
EnableCompression bool
// Jar specifies the cookie jar.
// If Jar is nil, cookies are not sent in requests and ignored
// in responses.
Jar http.CookieJar
}
// Dial creates a new client connection by calling DialContext with a background context.
func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
return d.DialContext(context.Background(), urlStr, requestHeader)
}
var errMalformedURL = errors.New("malformed ws or wss URL")
func hostPortNoPort(u *url.URL) (hostPort, hostNoPort string) {
hostPort = u.Host
hostNoPort = u.Host
if i := strings.LastIndex(u.Host, ":"); i > strings.LastIndex(u.Host, "]") {
hostNoPort = hostNoPort[:i]
} else {
switch u.Scheme {
case "wss":
hostPort += ":443"
case "https":
hostPort += ":443"
default:
hostPort += ":80"
}
}
return hostPort, hostNoPort
}
// DefaultDialer is a dialer with all fields set to the default values.
var DefaultDialer = &Dialer{
Proxy: http.ProxyFromEnvironment,
HandshakeTimeout: 45 * time.Second,
}
// nilDialer is dialer to use when receiver is nil.
var nilDialer = *DefaultDialer
// DialContext creates a new client connection. Use requestHeader to specify the
// origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies (Cookie).
// Use the response.Header to get the selected subprotocol
// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
//
// The context will be used in the request and in the Dialer.
//
// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
// non-nil *http.Response so that callers can handle redirects, authentication,
// etcetera. The response body may not contain the entire response and does not
// need to be closed by the application.
func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
if d == nil {
d = &nilDialer
}
challengeKey, err := generateChallengeKey()
if err != nil {
return nil, nil, err
}
u, err := url.Parse(urlStr)
if err != nil {
return nil, nil, err
}
switch u.Scheme {
case "ws":
u.Scheme = "http"
case "wss":
u.Scheme = "https"
default:
return nil, nil, errMalformedURL
}
if u.User != nil {
// User name and password are not allowed in websocket URIs.
return nil, nil, errMalformedURL
}
req := &http.Request{
Method: http.MethodGet,
URL: u,
Proto: "HTTP/1.1",
ProtoMajor: 1,
ProtoMinor: 1,
Header: make(http.Header),
Host: u.Host,
}
req = req.WithContext(ctx)
// Set the cookies present in the cookie jar of the dialer
if d.Jar != nil {
for _, cookie := range d.Jar.Cookies(u) {
req.AddCookie(cookie)
}
}
// Set the request headers using the capitalization for names and values in
// RFC examples. Although the capitalization shouldn't matter, there are
// servers that depend on it. The Header.Set method is not used because the
// method canonicalizes the header names.
req.Header["Upgrade"] = []string{"websocket"}
req.Header["Connection"] = []string{"Upgrade"}
req.Header["Sec-WebSocket-Key"] = []string{challengeKey}
req.Header["Sec-WebSocket-Version"] = []string{"13"}
if len(d.Subprotocols) > 0 {
req.Header["Sec-WebSocket-Protocol"] = []string{strings.Join(d.Subprotocols, ", ")}
}
for k, vs := range requestHeader {
switch {
case k == "Host":
if len(vs) > 0 {
req.Host = vs[0]
}
case k == "Upgrade" ||
k == "Connection" ||
k == "Sec-Websocket-Key" ||
k == "Sec-Websocket-Version" ||
k == "Sec-Websocket-Extensions" ||
(k == "Sec-Websocket-Protocol" && len(d.Subprotocols) > 0):
return nil, nil, errors.New("websocket: duplicate header not allowed: " + k)
case k == "Sec-Websocket-Protocol":
req.Header["Sec-WebSocket-Protocol"] = vs
default:
req.Header[k] = vs
}
}
if d.EnableCompression {
req.Header["Sec-WebSocket-Extensions"] = []string{"permessage-deflate; server_no_context_takeover; client_no_context_takeover"}
}
if d.HandshakeTimeout != 0 {
var cancel func()
ctx, cancel = context.WithTimeout(ctx, d.HandshakeTimeout)
defer cancel()
}
// Get network dial function.
var netDial func(network, add string) (net.Conn, error)
switch u.Scheme {
case "http":
if d.NetDialContext != nil {
netDial = func(network, addr string) (net.Conn, error) {
return d.NetDialContext(ctx, network, addr)
}
} else if d.NetDial != nil {
netDial = d.NetDial
}
case "https":
if d.NetDialTLSContext != nil {
netDial = func(network, addr string) (net.Conn, error) {
return d.NetDialTLSContext(ctx, network, addr)
}
} else if d.NetDialContext != nil {
netDial = func(network, addr string) (net.Conn, error) {
return d.NetDialContext(ctx, network, addr)
}
} else if d.NetDial != nil {
netDial = d.NetDial
}
default:
return nil, nil, errMalformedURL
}
if netDial == nil {
netDialer := &net.Dialer{}
netDial = func(network, addr string) (net.Conn, error) {
return netDialer.DialContext(ctx, network, addr)
}
}
// If needed, wrap the dial function to set the connection deadline.
if deadline, ok := ctx.Deadline(); ok {
forwardDial := netDial
netDial = func(network, addr string) (net.Conn, error) {
c, err := forwardDial(network, addr)
if err != nil {
return nil, err
}
err = c.SetDeadline(deadline)
if err != nil {
c.Close()
return nil, err
}
return c, nil
}
}
// If needed, wrap the dial function to connect through a proxy.
if d.Proxy != nil {
proxyURL, err := d.Proxy(req)
if err != nil {
return nil, nil, err
}
if proxyURL != nil {
dialer, err := proxy_FromURL(proxyURL, netDialerFunc(netDial))
if err != nil {
return nil, nil, err
}
netDial = dialer.Dial
}
}
hostPort, hostNoPort := hostPortNoPort(u)
trace := httptrace.ContextClientTrace(ctx)
if trace != nil && trace.GetConn != nil {
trace.GetConn(hostPort)
}
netConn, err := netDial("tcp", hostPort)
if trace != nil && trace.GotConn != nil {
trace.GotConn(httptrace.GotConnInfo{
Conn: netConn,
})
}
if err != nil {
return nil, nil, err
}
defer func() {
if netConn != nil {
netConn.Close()
}
}()
if u.Scheme == "https" && d.NetDialTLSContext == nil {
// If NetDialTLSContext is set, assume that the TLS handshake has already been done
cfg := cloneTLSConfig(d.TLSClientConfig)
if cfg.ServerName == "" {
cfg.ServerName = hostNoPort
}
tlsConn := tls.Client(netConn, cfg)
netConn = tlsConn
if trace != nil && trace.TLSHandshakeStart != nil {
trace.TLSHandshakeStart()
}
err := doHandshake(ctx, tlsConn, cfg)
if trace != nil && trace.TLSHandshakeDone != nil {
trace.TLSHandshakeDone(tlsConn.ConnectionState(), err)
}
if err != nil {
return nil, nil, err
}
}
conn := newConn(netConn, false, d.ReadBufferSize, d.WriteBufferSize, d.WriteBufferPool, nil, nil)
if err := req.Write(netConn); err != nil {
return nil, nil, err
}
if trace != nil && trace.GotFirstResponseByte != nil {
if peek, err := conn.br.Peek(1); err == nil && len(peek) == 1 {
trace.GotFirstResponseByte()
}
}
resp, err := http.ReadResponse(conn.br, req)
if err != nil {
return nil, nil, err
}
if d.Jar != nil {
if rc := resp.Cookies(); len(rc) > 0 {
d.Jar.SetCookies(u, rc)
}
}
if resp.StatusCode != 101 ||
!tokenListContainsValue(resp.Header, "Upgrade", "websocket") ||
!tokenListContainsValue(resp.Header, "Connection", "upgrade") ||
resp.Header.Get("Sec-Websocket-Accept") != computeAcceptKey(challengeKey) {
// Before closing the network connection on return from this
// function, slurp up some of the response to aid application
// debugging.
buf := make([]byte, 1024)
n, _ := io.ReadFull(resp.Body, buf)
resp.Body = ioutil.NopCloser(bytes.NewReader(buf[:n]))
return nil, resp, ErrBadHandshake
}
for _, ext := range parseExtensions(resp.Header) {
if ext[""] != "permessage-deflate" {
continue
}
_, snct := ext["server_no_context_takeover"]
_, cnct := ext["client_no_context_takeover"]
if !snct || !cnct {
return nil, resp, errInvalidCompression
}
conn.newCompressionWriter = compressNoContextTakeover
conn.newDecompressionReader = decompressNoContextTakeover
break
}
resp.Body = ioutil.NopCloser(bytes.NewReader([]byte{}))
conn.subprotocol = resp.Header.Get("Sec-Websocket-Protocol")
netConn.SetDeadline(time.Time{})
netConn = nil // to avoid close in defer.
return conn, resp, nil
}
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}
}
return cfg.Clone()
}

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