mirror of
https://github.com/go-micro/go-micro.git
synced 2025-07-12 22:41:07 +02:00
Asim Aslam
GitHub
186
server/grpc/codec.go
Normal file
186
server/grpc/codec.go
Normal file
@ -0,0 +1,186 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"strings"
|
||||
|
||||
b "bytes"
|
||||
|
||||
"github.com/golang/protobuf/jsonpb"
|
||||
"github.com/golang/protobuf/proto"
|
||||
"go-micro.dev/v5/codec"
|
||||
"go-micro.dev/v5/codec/bytes"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/encoding"
|
||||
"google.golang.org/grpc/metadata"
|
||||
)
|
||||
|
||||
type jsonCodec struct{}
|
||||
type bytesCodec struct{}
|
||||
type protoCodec struct{}
|
||||
type wrapCodec struct{ encoding.Codec }
|
||||
|
||||
var jsonpbMarshaler = &jsonpb.Marshaler{
|
||||
EnumsAsInts: false,
|
||||
EmitDefaults: false,
|
||||
OrigName: true,
|
||||
}
|
||||
|
||||
var (
|
||||
defaultGRPCCodecs = map[string]encoding.Codec{
|
||||
"application/json": jsonCodec{},
|
||||
"application/proto": protoCodec{},
|
||||
"application/protobuf": protoCodec{},
|
||||
"application/octet-stream": protoCodec{},
|
||||
"application/grpc": protoCodec{},
|
||||
"application/grpc+json": jsonCodec{},
|
||||
"application/grpc+proto": protoCodec{},
|
||||
"application/grpc+bytes": bytesCodec{},
|
||||
}
|
||||
)
|
||||
|
||||
func (w wrapCodec) String() string {
|
||||
return w.Codec.Name()
|
||||
}
|
||||
|
||||
func (w wrapCodec) Marshal(v interface{}) ([]byte, error) {
|
||||
b, ok := v.(*bytes.Frame)
|
||||
if ok {
|
||||
return b.Data, nil
|
||||
}
|
||||
return w.Codec.Marshal(v)
|
||||
}
|
||||
|
||||
func (w wrapCodec) Unmarshal(data []byte, v interface{}) error {
|
||||
b, ok := v.(*bytes.Frame)
|
||||
if ok {
|
||||
b.Data = data
|
||||
return nil
|
||||
}
|
||||
if v == nil {
|
||||
return nil
|
||||
}
|
||||
return w.Codec.Unmarshal(data, v)
|
||||
}
|
||||
|
||||
func (protoCodec) Marshal(v interface{}) ([]byte, error) {
|
||||
m, ok := v.(proto.Message)
|
||||
if !ok {
|
||||
return nil, codec.ErrInvalidMessage
|
||||
}
|
||||
return proto.Marshal(m)
|
||||
}
|
||||
|
||||
func (protoCodec) Unmarshal(data []byte, v interface{}) error {
|
||||
m, ok := v.(proto.Message)
|
||||
if !ok {
|
||||
return codec.ErrInvalidMessage
|
||||
}
|
||||
return proto.Unmarshal(data, m)
|
||||
}
|
||||
|
||||
func (protoCodec) Name() string {
|
||||
return "proto"
|
||||
}
|
||||
|
||||
func (jsonCodec) Marshal(v interface{}) ([]byte, error) {
|
||||
if pb, ok := v.(proto.Message); ok {
|
||||
s, err := jsonpbMarshaler.MarshalToString(pb)
|
||||
return []byte(s), err
|
||||
}
|
||||
|
||||
return json.Marshal(v)
|
||||
}
|
||||
|
||||
func (jsonCodec) Unmarshal(data []byte, v interface{}) error {
|
||||
if len(data) == 0 {
|
||||
return nil
|
||||
}
|
||||
if pb, ok := v.(proto.Message); ok {
|
||||
return jsonpb.Unmarshal(b.NewReader(data), pb)
|
||||
}
|
||||
return json.Unmarshal(data, v)
|
||||
}
|
||||
|
||||
func (jsonCodec) Name() string {
|
||||
return "json"
|
||||
}
|
||||
|
||||
func (bytesCodec) Marshal(v interface{}) ([]byte, error) {
|
||||
b, ok := v.(*[]byte)
|
||||
if !ok {
|
||||
return nil, codec.ErrInvalidMessage
|
||||
}
|
||||
return *b, nil
|
||||
}
|
||||
|
||||
func (bytesCodec) Unmarshal(data []byte, v interface{}) error {
|
||||
b, ok := v.(*[]byte)
|
||||
if !ok {
|
||||
return codec.ErrInvalidMessage
|
||||
}
|
||||
*b = data
|
||||
return nil
|
||||
}
|
||||
|
||||
func (bytesCodec) Name() string {
|
||||
return "bytes"
|
||||
}
|
||||
|
||||
type grpcCodec struct {
|
||||
// headers
|
||||
id string
|
||||
target string
|
||||
method string
|
||||
endpoint string
|
||||
|
||||
s grpc.ServerStream
|
||||
c encoding.Codec
|
||||
}
|
||||
|
||||
func (g *grpcCodec) ReadHeader(m *codec.Message, mt codec.MessageType) error {
|
||||
md, _ := metadata.FromIncomingContext(g.s.Context())
|
||||
if m == nil {
|
||||
m = new(codec.Message)
|
||||
}
|
||||
if m.Header == nil {
|
||||
m.Header = make(map[string]string, len(md))
|
||||
}
|
||||
for k, v := range md {
|
||||
m.Header[k] = strings.Join(v, ",")
|
||||
}
|
||||
m.Id = g.id
|
||||
m.Target = g.target
|
||||
m.Method = g.method
|
||||
m.Endpoint = g.endpoint
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *grpcCodec) ReadBody(v interface{}) error {
|
||||
// caller has requested a frame
|
||||
if f, ok := v.(*bytes.Frame); ok {
|
||||
return g.s.RecvMsg(f)
|
||||
}
|
||||
return g.s.RecvMsg(v)
|
||||
}
|
||||
|
||||
func (g *grpcCodec) Write(m *codec.Message, v interface{}) error {
|
||||
// if we don't have a body
|
||||
if v != nil {
|
||||
b, err := g.c.Marshal(v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
m.Body = b
|
||||
}
|
||||
// write the body using the framing codec
|
||||
return g.s.SendMsg(&bytes.Frame{Data: m.Body})
|
||||
}
|
||||
|
||||
func (g *grpcCodec) Close() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *grpcCodec) String() string {
|
||||
return "grpc"
|
||||
}
|
||||
16
server/grpc/context.go
Normal file
16
server/grpc/context.go
Normal file
@ -0,0 +1,16 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"go-micro.dev/v5/server"
|
||||
)
|
||||
|
||||
func setServerOption(k, v interface{}) server.Option {
|
||||
return func(o *server.Options) {
|
||||
if o.Context == nil {
|
||||
o.Context = context.Background()
|
||||
}
|
||||
o.Context = context.WithValue(o.Context, k, v)
|
||||
}
|
||||
}
|
||||
42
server/grpc/error.go
Normal file
42
server/grpc/error.go
Normal file
@ -0,0 +1,42 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
|
||||
"go-micro.dev/v5/errors"
|
||||
"google.golang.org/grpc/codes"
|
||||
)
|
||||
|
||||
func microError(err *errors.Error) codes.Code {
|
||||
switch err {
|
||||
case nil:
|
||||
return codes.OK
|
||||
}
|
||||
|
||||
switch err.Code {
|
||||
case http.StatusOK:
|
||||
return codes.OK
|
||||
case http.StatusBadRequest:
|
||||
return codes.InvalidArgument
|
||||
case http.StatusRequestTimeout:
|
||||
return codes.DeadlineExceeded
|
||||
case http.StatusNotFound:
|
||||
return codes.NotFound
|
||||
case http.StatusConflict:
|
||||
return codes.AlreadyExists
|
||||
case http.StatusForbidden:
|
||||
return codes.PermissionDenied
|
||||
case http.StatusUnauthorized:
|
||||
return codes.Unauthenticated
|
||||
case http.StatusPreconditionFailed:
|
||||
return codes.FailedPrecondition
|
||||
case http.StatusNotImplemented:
|
||||
return codes.Unimplemented
|
||||
case http.StatusInternalServerError:
|
||||
return codes.Internal
|
||||
case http.StatusServiceUnavailable:
|
||||
return codes.Unavailable
|
||||
}
|
||||
|
||||
return codes.Unknown
|
||||
}
|
||||
125
server/grpc/extractor.go
Normal file
125
server/grpc/extractor.go
Normal file
@ -0,0 +1,125 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
|
||||
"go-micro.dev/v5/registry"
|
||||
)
|
||||
|
||||
func extractValue(v reflect.Type, d int) *registry.Value {
|
||||
if d == 3 {
|
||||
return nil
|
||||
}
|
||||
if v == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
if v.Kind() == reflect.Ptr {
|
||||
v = v.Elem()
|
||||
}
|
||||
|
||||
arg := ®istry.Value{
|
||||
Name: v.Name(),
|
||||
Type: v.Name(),
|
||||
}
|
||||
|
||||
switch v.Kind() {
|
||||
case reflect.Struct:
|
||||
for i := 0; i < v.NumField(); i++ {
|
||||
f := v.Field(i)
|
||||
if f.PkgPath != "" {
|
||||
continue
|
||||
}
|
||||
val := extractValue(f.Type, d+1)
|
||||
if val == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
// if we can find a json tag use it
|
||||
if tags := f.Tag.Get("json"); len(tags) > 0 {
|
||||
parts := strings.Split(tags, ",")
|
||||
if parts[0] == "-" || parts[0] == "omitempty" {
|
||||
continue
|
||||
}
|
||||
val.Name = parts[0]
|
||||
}
|
||||
|
||||
// if there's no name default it
|
||||
if len(val.Name) == 0 {
|
||||
val.Name = v.Field(i).Name
|
||||
}
|
||||
|
||||
arg.Values = append(arg.Values, val)
|
||||
}
|
||||
case reflect.Slice:
|
||||
p := v.Elem()
|
||||
if p.Kind() == reflect.Ptr {
|
||||
p = p.Elem()
|
||||
}
|
||||
arg.Type = "[]" + p.Name()
|
||||
}
|
||||
|
||||
return arg
|
||||
}
|
||||
|
||||
func extractEndpoint(method reflect.Method) *registry.Endpoint {
|
||||
if method.PkgPath != "" {
|
||||
return nil
|
||||
}
|
||||
|
||||
var rspType, reqType reflect.Type
|
||||
var stream bool
|
||||
mt := method.Type
|
||||
|
||||
switch mt.NumIn() {
|
||||
case 3:
|
||||
reqType = mt.In(1)
|
||||
rspType = mt.In(2)
|
||||
case 4:
|
||||
reqType = mt.In(2)
|
||||
rspType = mt.In(3)
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
|
||||
// are we dealing with a stream?
|
||||
switch rspType.Kind() {
|
||||
case reflect.Func, reflect.Interface:
|
||||
stream = true
|
||||
}
|
||||
|
||||
request := extractValue(reqType, 0)
|
||||
response := extractValue(rspType, 0)
|
||||
|
||||
ep := ®istry.Endpoint{
|
||||
Name: method.Name,
|
||||
Request: request,
|
||||
Response: response,
|
||||
Metadata: make(map[string]string),
|
||||
}
|
||||
|
||||
if stream {
|
||||
ep.Metadata = map[string]string{
|
||||
"stream": fmt.Sprintf("%v", stream),
|
||||
}
|
||||
}
|
||||
|
||||
return ep
|
||||
}
|
||||
|
||||
func extractSubValue(typ reflect.Type) *registry.Value {
|
||||
var reqType reflect.Type
|
||||
switch typ.NumIn() {
|
||||
case 1:
|
||||
reqType = typ.In(0)
|
||||
case 2:
|
||||
reqType = typ.In(1)
|
||||
case 3:
|
||||
reqType = typ.In(2)
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
return extractValue(reqType, 0)
|
||||
}
|
||||
64
server/grpc/extractor_test.go
Normal file
64
server/grpc/extractor_test.go
Normal file
@ -0,0 +1,64 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"context"
|
||||
"reflect"
|
||||
"testing"
|
||||
|
||||
"go-micro.dev/v5/registry"
|
||||
)
|
||||
|
||||
type testHandler struct{}
|
||||
|
||||
type testRequest struct{}
|
||||
|
||||
type testResponse struct{}
|
||||
|
||||
func (t *testHandler) Test(ctx context.Context, req *testRequest, rsp *testResponse) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func TestExtractEndpoint(t *testing.T) {
|
||||
handler := &testHandler{}
|
||||
typ := reflect.TypeOf(handler)
|
||||
|
||||
var endpoints []*registry.Endpoint
|
||||
|
||||
for m := 0; m < typ.NumMethod(); m++ {
|
||||
if e := extractEndpoint(typ.Method(m)); e != nil {
|
||||
endpoints = append(endpoints, e)
|
||||
}
|
||||
}
|
||||
|
||||
if i := len(endpoints); i != 1 {
|
||||
t.Errorf("Expected 1 endpoint, have %d", i)
|
||||
}
|
||||
|
||||
if endpoints[0].Name != "Test" {
|
||||
t.Errorf("Expected handler Test, got %s", endpoints[0].Name)
|
||||
}
|
||||
|
||||
if endpoints[0].Request == nil {
|
||||
t.Error("Expected non nil request")
|
||||
}
|
||||
|
||||
if endpoints[0].Response == nil {
|
||||
t.Error("Expected non nil request")
|
||||
}
|
||||
|
||||
if endpoints[0].Request.Name != "testRequest" {
|
||||
t.Errorf("Expected testRequest got %s", endpoints[0].Request.Name)
|
||||
}
|
||||
|
||||
if endpoints[0].Response.Name != "testResponse" {
|
||||
t.Errorf("Expected testResponse got %s", endpoints[0].Response.Name)
|
||||
}
|
||||
|
||||
if endpoints[0].Request.Type != "testRequest" {
|
||||
t.Errorf("Expected testRequest type got %s", endpoints[0].Request.Type)
|
||||
}
|
||||
|
||||
if endpoints[0].Response.Type != "testResponse" {
|
||||
t.Errorf("Expected testResponse type got %s", endpoints[0].Response.Type)
|
||||
}
|
||||
}
|
||||
36
server/grpc/go.mod
Normal file
36
server/grpc/go.mod
Normal file
@ -0,0 +1,36 @@
|
||||
module go-micro.dev/v5/server/grpc
|
||||
|
||||
go 1.24
|
||||
|
||||
toolchain go1.24.1
|
||||
|
||||
require (
|
||||
github.com/golang/protobuf v1.5.4
|
||||
go-micro.dev/v5 v5.5.1-0.20250507183911-01b8394c8119
|
||||
golang.org/x/net v0.23.0
|
||||
google.golang.org/grpc v1.53.0
|
||||
)
|
||||
|
||||
require (
|
||||
github.com/bitly/go-simplejson v0.5.0 // indirect
|
||||
github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
|
||||
github.com/fsnotify/fsnotify v1.6.0 // indirect
|
||||
github.com/google/uuid v1.3.0 // indirect
|
||||
github.com/imdario/mergo v0.3.13 // indirect
|
||||
github.com/miekg/dns v1.1.50 // indirect
|
||||
github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
|
||||
github.com/pkg/errors v0.9.1 // indirect
|
||||
github.com/rogpeppe/go-internal v1.12.0 // indirect
|
||||
github.com/russross/blackfriday/v2 v2.1.0 // indirect
|
||||
github.com/urfave/cli/v2 v2.25.7 // indirect
|
||||
github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
|
||||
go.etcd.io/bbolt v1.4.0 // indirect
|
||||
golang.org/x/mod v0.9.0 // indirect
|
||||
golang.org/x/sync v0.10.0 // indirect
|
||||
golang.org/x/sys v0.29.0 // indirect
|
||||
golang.org/x/text v0.14.0 // indirect
|
||||
golang.org/x/tools v0.7.0 // indirect
|
||||
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 // indirect
|
||||
google.golang.org/protobuf v1.33.0 // indirect
|
||||
)
|
||||
99
server/grpc/go.sum
Normal file
99
server/grpc/go.sum
Normal file
@ -0,0 +1,99 @@
|
||||
github.com/bitly/go-simplejson v0.5.0 h1:6IH+V8/tVMab511d5bn4M7EwGXZf9Hj6i2xSwkNEM+Y=
|
||||
github.com/bitly/go-simplejson v0.5.0/go.mod h1:cXHtHw4XUPsvGaxgjIAn8PhEWG9NfngEKAMDJEczWVA=
|
||||
github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 h1:DDGfHa7BWjL4YnC6+E63dPcxHo2sUxDIu8g3QgEJdRY=
|
||||
github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
|
||||
github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
|
||||
github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
|
||||
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/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
|
||||
github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
|
||||
github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
|
||||
github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
|
||||
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
|
||||
github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
|
||||
github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
|
||||
github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
|
||||
github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
|
||||
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
|
||||
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
|
||||
github.com/miekg/dns v1.1.50 h1:DQUfb9uc6smULcREF09Uc+/Gd46YWqJd5DbpPE9xkcA=
|
||||
github.com/miekg/dns v1.1.50/go.mod h1:e3IlAVfNqAllflbibAZEWOXOQ+Ynzk/dDozDxY7XnME=
|
||||
github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c h1:rp5dCmg/yLR3mgFuSOe4oEnDDmGLROTvMragMUXpTQw=
|
||||
github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c/go.mod h1:X07ZCGwUbLaax7L0S3Tw4hpejzu63ZrrQiUe6W0hcy0=
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
|
||||
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
|
||||
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
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/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
|
||||
github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
|
||||
github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
|
||||
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
||||
github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
|
||||
github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
|
||||
github.com/urfave/cli/v2 v2.25.7 h1:VAzn5oq403l5pHjc4OhD54+XGO9cdKVL/7lDjF+iKUs=
|
||||
github.com/urfave/cli/v2 v2.25.7/go.mod h1:8qnjx1vcq5s2/wpsqoZFndg2CE5tNFyrTvS6SinrnYQ=
|
||||
github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
|
||||
github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
|
||||
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
|
||||
go-micro.dev/v5 v5.5.1-0.20250507183911-01b8394c8119 h1:hKzFHTSwaYvPS0sTrWpUcS2HFFbJte//n91NMWFFk4k=
|
||||
go-micro.dev/v5 v5.5.1-0.20250507183911-01b8394c8119/go.mod h1:pplSGFQk5So43OrzGAg1gH434XydWybOTyFhv/nR0pA=
|
||||
go.etcd.io/bbolt v1.4.0 h1:TU77id3TnN/zKr7CO/uk+fBCwF2jGcMuw2B/FMAzYIk=
|
||||
go.etcd.io/bbolt v1.4.0/go.mod h1:AsD+OCi/qPN1giOX1aiLAha3o1U8rAz65bvN4j0sRuk=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
|
||||
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
|
||||
golang.org/x/mod v0.9.0 h1:KENHtAZL2y3NLMYZeHY9DW8HW8V+kQyJsY/V9JlKvCs=
|
||||
golang.org/x/mod v0.9.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
|
||||
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
|
||||
golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
|
||||
golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs=
|
||||
golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.10.0 h1:3NQrjDixjgGwUOCaF8w2+VYHv0Ve/vGYSbdkTa98gmQ=
|
||||
golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
|
||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
|
||||
golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
|
||||
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
|
||||
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
|
||||
golang.org/x/tools v0.7.0 h1:W4OVu8VVOaIO0yzWMNdepAulS7YfoS3Zabrm8DOXXU4=
|
||||
golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
|
||||
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 h1:DdoeryqhaXp1LtT/emMP1BRJPHHKFi5akj/nbx/zNTA=
|
||||
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
|
||||
google.golang.org/grpc v1.53.0 h1:LAv2ds7cmFV/XTS3XG1NneeENYrXGmorPxsBbptIjNc=
|
||||
google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
|
||||
google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
|
||||
google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
||||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
1039
server/grpc/grpc.go
Normal file
1039
server/grpc/grpc.go
Normal file
File diff suppressed because it is too large
Load Diff
66
server/grpc/handler.go
Normal file
66
server/grpc/handler.go
Normal file
@ -0,0 +1,66 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
|
||||
"go-micro.dev/v5/registry"
|
||||
"go-micro.dev/v5/server"
|
||||
)
|
||||
|
||||
type rpcHandler struct {
|
||||
name string
|
||||
handler interface{}
|
||||
endpoints []*registry.Endpoint
|
||||
opts server.HandlerOptions
|
||||
}
|
||||
|
||||
func newRpcHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
|
||||
options := server.HandlerOptions{
|
||||
Metadata: make(map[string]map[string]string),
|
||||
}
|
||||
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
typ := reflect.TypeOf(handler)
|
||||
hdlr := reflect.ValueOf(handler)
|
||||
name := reflect.Indirect(hdlr).Type().Name()
|
||||
|
||||
var endpoints []*registry.Endpoint
|
||||
|
||||
for m := 0; m < typ.NumMethod(); m++ {
|
||||
if e := extractEndpoint(typ.Method(m)); e != nil {
|
||||
e.Name = name + "." + e.Name
|
||||
|
||||
for k, v := range options.Metadata[e.Name] {
|
||||
e.Metadata[k] = v
|
||||
}
|
||||
|
||||
endpoints = append(endpoints, e)
|
||||
}
|
||||
}
|
||||
|
||||
return &rpcHandler{
|
||||
name: name,
|
||||
handler: handler,
|
||||
endpoints: endpoints,
|
||||
opts: options,
|
||||
}
|
||||
}
|
||||
|
||||
func (r *rpcHandler) Name() string {
|
||||
return r.name
|
||||
}
|
||||
|
||||
func (r *rpcHandler) Handler() interface{} {
|
||||
return r.handler
|
||||
}
|
||||
|
||||
func (r *rpcHandler) Endpoints() []*registry.Endpoint {
|
||||
return r.endpoints
|
||||
}
|
||||
|
||||
func (r *rpcHandler) Options() server.HandlerOptions {
|
||||
return r.opts
|
||||
}
|
||||
95
server/grpc/options.go
Normal file
95
server/grpc/options.go
Normal file
@ -0,0 +1,95 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"context"
|
||||
"crypto/tls"
|
||||
"net"
|
||||
|
||||
"go-micro.dev/v5/broker"
|
||||
"go-micro.dev/v5/codec"
|
||||
"go-micro.dev/v5/logger"
|
||||
"go-micro.dev/v5/registry"
|
||||
"go-micro.dev/v5/server"
|
||||
"go-micro.dev/v5/transport"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/encoding"
|
||||
)
|
||||
|
||||
type codecsKey struct{}
|
||||
type grpcOptions struct{}
|
||||
type netListener struct{}
|
||||
type maxMsgSizeKey struct{}
|
||||
type maxConnKey struct{}
|
||||
type tlsAuth struct{}
|
||||
type grpcServerKey struct{}
|
||||
|
||||
// gRPC Codec to be used to encode/decode requests for a given content type.
|
||||
func Codec(contentType string, c encoding.Codec) server.Option {
|
||||
return func(o *server.Options) {
|
||||
codecs := make(map[string]encoding.Codec)
|
||||
if o.Context == nil {
|
||||
o.Context = context.Background()
|
||||
}
|
||||
if v, ok := o.Context.Value(codecsKey{}).(map[string]encoding.Codec); ok && v != nil {
|
||||
codecs = v
|
||||
}
|
||||
codecs[contentType] = c
|
||||
o.Context = context.WithValue(o.Context, codecsKey{}, codecs)
|
||||
}
|
||||
}
|
||||
|
||||
// AuthTLS should be used to setup a secure authentication using TLS.
|
||||
func AuthTLS(t *tls.Config) server.Option {
|
||||
return setServerOption(tlsAuth{}, t)
|
||||
}
|
||||
|
||||
// MaxConn specifies maximum number of max simultaneous connections to server.
|
||||
func MaxConn(n int) server.Option {
|
||||
return setServerOption(maxConnKey{}, n)
|
||||
}
|
||||
|
||||
// Listener specifies the net.Listener to use instead of the default.
|
||||
func Listener(l net.Listener) server.Option {
|
||||
return setServerOption(netListener{}, l)
|
||||
}
|
||||
|
||||
// Server specifies a *grpc.Server to use instead of the default
|
||||
// This is for rare use case where user need to expose grpc.Server for
|
||||
// customization. Please NOTE however user injected grpcServer doesn't support
|
||||
// server Handler abstraction.
|
||||
func Server(srv *grpc.Server) server.Option {
|
||||
return setServerOption(grpcServerKey{}, srv)
|
||||
}
|
||||
|
||||
// Options to be used to configure gRPC options.
|
||||
func Options(opts ...grpc.ServerOption) server.Option {
|
||||
return setServerOption(grpcOptions{}, opts)
|
||||
}
|
||||
|
||||
// MaxMsgSize set the maximum message in bytes the server can receive and
|
||||
// send. Default maximum message size is 4 MB.
|
||||
func MaxMsgSize(s int) server.Option {
|
||||
return setServerOption(maxMsgSizeKey{}, s)
|
||||
}
|
||||
|
||||
func newOptions(opt ...server.Option) server.Options {
|
||||
opts := server.Options{
|
||||
Codecs: make(map[string]codec.NewCodec),
|
||||
Metadata: map[string]string{},
|
||||
Broker: broker.DefaultBroker,
|
||||
Registry: registry.DefaultRegistry,
|
||||
RegisterCheck: server.DefaultRegisterCheck,
|
||||
Transport: transport.DefaultTransport,
|
||||
Address: server.DefaultAddress,
|
||||
Name: server.DefaultName,
|
||||
Id: server.DefaultId,
|
||||
Version: server.DefaultVersion,
|
||||
Logger: logger.DefaultLogger,
|
||||
}
|
||||
|
||||
for _, o := range opt {
|
||||
o(&opts)
|
||||
}
|
||||
|
||||
return opts
|
||||
}
|
||||
90
server/grpc/request.go
Normal file
90
server/grpc/request.go
Normal file
@ -0,0 +1,90 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"go-micro.dev/v5/codec"
|
||||
"go-micro.dev/v5/codec/bytes"
|
||||
)
|
||||
|
||||
type rpcRequest struct {
|
||||
service string
|
||||
method string
|
||||
contentType string
|
||||
codec codec.Codec
|
||||
header map[string]string
|
||||
body []byte
|
||||
stream bool
|
||||
payload interface{}
|
||||
}
|
||||
|
||||
type rpcMessage struct {
|
||||
topic string
|
||||
contentType string
|
||||
payload interface{}
|
||||
header map[string]string
|
||||
body []byte
|
||||
codec codec.Codec
|
||||
}
|
||||
|
||||
func (r *rpcRequest) ContentType() string {
|
||||
return r.contentType
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Service() string {
|
||||
return r.service
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Method() string {
|
||||
return r.method
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Endpoint() string {
|
||||
return r.method
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Codec() codec.Reader {
|
||||
return r.codec
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Header() map[string]string {
|
||||
return r.header
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Read() ([]byte, error) {
|
||||
f := &bytes.Frame{}
|
||||
if err := r.codec.ReadBody(f); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return f.Data, nil
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Stream() bool {
|
||||
return r.stream
|
||||
}
|
||||
|
||||
func (r *rpcRequest) Body() interface{} {
|
||||
return r.payload
|
||||
}
|
||||
|
||||
func (r *rpcMessage) ContentType() string {
|
||||
return r.contentType
|
||||
}
|
||||
|
||||
func (r *rpcMessage) Topic() string {
|
||||
return r.topic
|
||||
}
|
||||
|
||||
func (r *rpcMessage) Payload() interface{} {
|
||||
return r.payload
|
||||
}
|
||||
|
||||
func (r *rpcMessage) Header() map[string]string {
|
||||
return r.header
|
||||
}
|
||||
|
||||
func (r *rpcMessage) Body() []byte {
|
||||
return r.body
|
||||
}
|
||||
|
||||
func (r *rpcMessage) Codec() codec.Reader {
|
||||
return r.codec
|
||||
}
|
||||
27
server/grpc/response.go
Normal file
27
server/grpc/response.go
Normal file
@ -0,0 +1,27 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"go-micro.dev/v5/codec"
|
||||
)
|
||||
|
||||
type rpcResponse struct {
|
||||
header map[string]string
|
||||
codec codec.Codec
|
||||
}
|
||||
|
||||
func (r *rpcResponse) Codec() codec.Writer {
|
||||
return r.codec
|
||||
}
|
||||
|
||||
func (r *rpcResponse) WriteHeader(hdr map[string]string) {
|
||||
for k, v := range hdr {
|
||||
r.header[k] = v
|
||||
}
|
||||
}
|
||||
|
||||
func (r *rpcResponse) Write(b []byte) error {
|
||||
return r.codec.Write(&codec.Message{
|
||||
Header: r.header,
|
||||
Body: b,
|
||||
}, nil)
|
||||
}
|
||||
182
server/grpc/server.go
Normal file
182
server/grpc/server.go
Normal file
@ -0,0 +1,182 @@
|
||||
package grpc
|
||||
|
||||
// Copyright 2009 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.
|
||||
//
|
||||
// Meh, we need to get rid of this shit
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"reflect"
|
||||
"sync"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
|
||||
"go-micro.dev/v5/logger"
|
||||
"go-micro.dev/v5/server"
|
||||
)
|
||||
|
||||
var (
|
||||
// Precompute the reflect type for error. Can't use error directly
|
||||
// because Typeof takes an empty interface value. This is annoying.
|
||||
typeOfError = reflect.TypeOf((*error)(nil)).Elem()
|
||||
)
|
||||
|
||||
type methodType struct {
|
||||
method reflect.Method
|
||||
ArgType reflect.Type
|
||||
ReplyType reflect.Type
|
||||
ContextType reflect.Type
|
||||
stream bool
|
||||
}
|
||||
|
||||
type service struct {
|
||||
name string // name of service
|
||||
rcvr reflect.Value // receiver of methods for the service
|
||||
typ reflect.Type // type of the receiver
|
||||
method map[string]*methodType // registered methods
|
||||
}
|
||||
|
||||
// server represents an RPC Server.
|
||||
type rServer struct {
|
||||
mu sync.Mutex // protects the serviceMap
|
||||
serviceMap map[string]*service
|
||||
logger logger.Logger
|
||||
}
|
||||
|
||||
// Is this an exported - upper case - name?
|
||||
func isExported(name string) bool {
|
||||
rune, _ := utf8.DecodeRuneInString(name)
|
||||
return unicode.IsUpper(rune)
|
||||
}
|
||||
|
||||
// Is this type exported or a builtin?
|
||||
func isExportedOrBuiltinType(t reflect.Type) bool {
|
||||
for t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
// PkgPath will be non-empty even for an exported type,
|
||||
// so we need to check the type name as well.
|
||||
return isExported(t.Name()) || t.PkgPath() == ""
|
||||
}
|
||||
|
||||
// prepareEndpoint() returns a methodType for the provided method or nil
|
||||
// in case if the method was unsuitable.
|
||||
func prepareEndpoint(method reflect.Method, log logger.Logger) *methodType {
|
||||
mtype := method.Type
|
||||
mname := method.Name
|
||||
var replyType, argType, contextType reflect.Type
|
||||
var stream bool
|
||||
|
||||
// Endpoint() must be exported.
|
||||
if method.PkgPath != "" {
|
||||
return nil
|
||||
}
|
||||
|
||||
switch mtype.NumIn() {
|
||||
case 3:
|
||||
// assuming streaming
|
||||
argType = mtype.In(2)
|
||||
contextType = mtype.In(1)
|
||||
stream = true
|
||||
case 4:
|
||||
// method that takes a context
|
||||
argType = mtype.In(2)
|
||||
replyType = mtype.In(3)
|
||||
contextType = mtype.In(1)
|
||||
default:
|
||||
log.Logf(logger.ErrorLevel, "method %v of %v has wrong number of ins: %v", mname, mtype, mtype.NumIn())
|
||||
return nil
|
||||
}
|
||||
|
||||
if stream {
|
||||
// check stream type
|
||||
streamType := reflect.TypeOf((*server.Stream)(nil)).Elem()
|
||||
if !argType.Implements(streamType) {
|
||||
log.Logf(logger.ErrorLevel, "%v argument does not implement Streamer interface: %v", mname, argType)
|
||||
return nil
|
||||
}
|
||||
} else {
|
||||
// if not stream check the replyType
|
||||
|
||||
// First arg need not be a pointer.
|
||||
if !isExportedOrBuiltinType(argType) {
|
||||
log.Logf(logger.ErrorLevel, "%v argument type not exported: %v", mname, argType)
|
||||
return nil
|
||||
}
|
||||
|
||||
if replyType.Kind() != reflect.Ptr {
|
||||
log.Logf(logger.ErrorLevel, "method %v reply type not a pointer: %v", mname, replyType)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Reply type must be exported.
|
||||
if !isExportedOrBuiltinType(replyType) {
|
||||
log.Logf(logger.ErrorLevel, "method %v reply type not exported: %v", mname, replyType)
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// Endpoint() needs one out.
|
||||
if mtype.NumOut() != 1 {
|
||||
log.Logf(logger.ErrorLevel, "method %v has wrong number of outs: %v", mname, mtype.NumOut())
|
||||
return nil
|
||||
}
|
||||
// The return type of the method must be error.
|
||||
if returnType := mtype.Out(0); returnType != typeOfError {
|
||||
log.Logf(logger.ErrorLevel, "method %v returns %v not error", mname, returnType.String())
|
||||
return nil
|
||||
}
|
||||
return &methodType{method: method, ArgType: argType, ReplyType: replyType, ContextType: contextType, stream: stream}
|
||||
}
|
||||
|
||||
func (server *rServer) register(rcvr interface{}) error {
|
||||
server.mu.Lock()
|
||||
defer server.mu.Unlock()
|
||||
log := server.logger
|
||||
if server.serviceMap == nil {
|
||||
server.serviceMap = make(map[string]*service)
|
||||
}
|
||||
s := new(service)
|
||||
s.typ = reflect.TypeOf(rcvr)
|
||||
s.rcvr = reflect.ValueOf(rcvr)
|
||||
sname := reflect.Indirect(s.rcvr).Type().Name()
|
||||
if sname == "" {
|
||||
logger.Fatalf("rpc: no service name for type %v", s.typ.String())
|
||||
}
|
||||
if !isExported(sname) {
|
||||
s := "rpc Register: type " + sname + " is not exported"
|
||||
log.Log(logger.ErrorLevel, s)
|
||||
return errors.New(s)
|
||||
}
|
||||
if _, present := server.serviceMap[sname]; present {
|
||||
return errors.New("rpc: service already defined: " + sname)
|
||||
}
|
||||
s.name = sname
|
||||
s.method = make(map[string]*methodType)
|
||||
|
||||
// Install the methods
|
||||
for m := 0; m < s.typ.NumMethod(); m++ {
|
||||
method := s.typ.Method(m)
|
||||
if mt := prepareEndpoint(method, log); mt != nil {
|
||||
s.method[method.Name] = mt
|
||||
}
|
||||
}
|
||||
|
||||
if len(s.method) == 0 {
|
||||
s := "rpc Register: type " + sname + " has no exported methods of suitable type"
|
||||
log.Log(logger.ErrorLevel, s)
|
||||
return errors.New(s)
|
||||
}
|
||||
server.serviceMap[s.name] = s
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *methodType) prepareContext(ctx context.Context) reflect.Value {
|
||||
if contextv := reflect.ValueOf(ctx); contextv.IsValid() {
|
||||
return contextv
|
||||
}
|
||||
return reflect.Zero(m.ContextType)
|
||||
}
|
||||
38
server/grpc/stream.go
Normal file
38
server/grpc/stream.go
Normal file
@ -0,0 +1,38 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"go-micro.dev/v5/server"
|
||||
"google.golang.org/grpc"
|
||||
)
|
||||
|
||||
// rpcStream implements a server side Stream.
|
||||
type rpcStream struct {
|
||||
s grpc.ServerStream
|
||||
request server.Request
|
||||
}
|
||||
|
||||
func (r *rpcStream) Close() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *rpcStream) Error() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *rpcStream) Request() server.Request {
|
||||
return r.request
|
||||
}
|
||||
|
||||
func (r *rpcStream) Context() context.Context {
|
||||
return r.s.Context()
|
||||
}
|
||||
|
||||
func (r *rpcStream) Send(m interface{}) error {
|
||||
return r.s.SendMsg(m)
|
||||
}
|
||||
|
||||
func (r *rpcStream) Recv(m interface{}) error {
|
||||
return r.s.RecvMsg(m)
|
||||
}
|
||||
291
server/grpc/subscriber.go
Normal file
291
server/grpc/subscriber.go
Normal file
@ -0,0 +1,291 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"runtime/debug"
|
||||
"strings"
|
||||
|
||||
"go-micro.dev/v5/broker"
|
||||
"go-micro.dev/v5/errors"
|
||||
"go-micro.dev/v5/logger"
|
||||
"go-micro.dev/v5/metadata"
|
||||
"go-micro.dev/v5/registry"
|
||||
"go-micro.dev/v5/server"
|
||||
)
|
||||
|
||||
const (
|
||||
subSig = "func(context.Context, interface{}) error"
|
||||
)
|
||||
|
||||
type handler struct {
|
||||
method reflect.Value
|
||||
reqType reflect.Type
|
||||
ctxType reflect.Type
|
||||
}
|
||||
|
||||
type subscriber struct {
|
||||
topic string
|
||||
rcvr reflect.Value
|
||||
typ reflect.Type
|
||||
subscriber interface{}
|
||||
handlers []*handler
|
||||
endpoints []*registry.Endpoint
|
||||
opts server.SubscriberOptions
|
||||
}
|
||||
|
||||
func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOption) server.Subscriber {
|
||||
options := server.SubscriberOptions{
|
||||
AutoAck: true,
|
||||
}
|
||||
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
var endpoints []*registry.Endpoint
|
||||
var handlers []*handler
|
||||
|
||||
if typ := reflect.TypeOf(sub); typ.Kind() == reflect.Func {
|
||||
h := &handler{
|
||||
method: reflect.ValueOf(sub),
|
||||
}
|
||||
|
||||
switch typ.NumIn() {
|
||||
case 1:
|
||||
h.reqType = typ.In(0)
|
||||
case 2:
|
||||
h.ctxType = typ.In(0)
|
||||
h.reqType = typ.In(1)
|
||||
}
|
||||
|
||||
handlers = append(handlers, h)
|
||||
|
||||
endpoints = append(endpoints, ®istry.Endpoint{
|
||||
Name: "Func",
|
||||
Request: extractSubValue(typ),
|
||||
Metadata: map[string]string{
|
||||
"topic": topic,
|
||||
"subscriber": "true",
|
||||
},
|
||||
})
|
||||
} else {
|
||||
hdlr := reflect.ValueOf(sub)
|
||||
name := reflect.Indirect(hdlr).Type().Name()
|
||||
|
||||
for m := 0; m < typ.NumMethod(); m++ {
|
||||
method := typ.Method(m)
|
||||
h := &handler{
|
||||
method: method.Func,
|
||||
}
|
||||
|
||||
switch method.Type.NumIn() {
|
||||
case 2:
|
||||
h.reqType = method.Type.In(1)
|
||||
case 3:
|
||||
h.ctxType = method.Type.In(1)
|
||||
h.reqType = method.Type.In(2)
|
||||
}
|
||||
|
||||
handlers = append(handlers, h)
|
||||
|
||||
endpoints = append(endpoints, ®istry.Endpoint{
|
||||
Name: name + "." + method.Name,
|
||||
Request: extractSubValue(method.Type),
|
||||
Metadata: map[string]string{
|
||||
"topic": topic,
|
||||
"subscriber": "true",
|
||||
},
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
return &subscriber{
|
||||
rcvr: reflect.ValueOf(sub),
|
||||
typ: reflect.TypeOf(sub),
|
||||
topic: topic,
|
||||
subscriber: sub,
|
||||
handlers: handlers,
|
||||
endpoints: endpoints,
|
||||
opts: options,
|
||||
}
|
||||
}
|
||||
|
||||
func validateSubscriber(sub server.Subscriber) error {
|
||||
typ := reflect.TypeOf(sub.Subscriber())
|
||||
var argType reflect.Type
|
||||
|
||||
if typ.Kind() == reflect.Func {
|
||||
name := "Func"
|
||||
switch typ.NumIn() {
|
||||
case 2:
|
||||
argType = typ.In(1)
|
||||
default:
|
||||
return fmt.Errorf("subscriber %v takes wrong number of args: %v required signature %s", name, typ.NumIn(), subSig)
|
||||
}
|
||||
if !isExportedOrBuiltinType(argType) {
|
||||
return fmt.Errorf("subscriber %v argument type not exported: %v", name, argType)
|
||||
}
|
||||
if typ.NumOut() != 1 {
|
||||
return fmt.Errorf("subscriber %v has wrong number of outs: %v require signature %s",
|
||||
name, typ.NumOut(), subSig)
|
||||
}
|
||||
if returnType := typ.Out(0); returnType != typeOfError {
|
||||
return fmt.Errorf("subscriber %v returns %v not error", name, returnType.String())
|
||||
}
|
||||
} else {
|
||||
hdlr := reflect.ValueOf(sub.Subscriber())
|
||||
name := reflect.Indirect(hdlr).Type().Name()
|
||||
|
||||
for m := 0; m < typ.NumMethod(); m++ {
|
||||
method := typ.Method(m)
|
||||
|
||||
switch method.Type.NumIn() {
|
||||
case 3:
|
||||
argType = method.Type.In(2)
|
||||
default:
|
||||
return fmt.Errorf("subscriber %v.%v takes wrong number of args: %v required signature %s",
|
||||
name, method.Name, method.Type.NumIn(), subSig)
|
||||
}
|
||||
|
||||
if !isExportedOrBuiltinType(argType) {
|
||||
return fmt.Errorf("%v argument type not exported: %v", name, argType)
|
||||
}
|
||||
if method.Type.NumOut() != 1 {
|
||||
return fmt.Errorf(
|
||||
"subscriber %v.%v has wrong number of outs: %v require signature %s",
|
||||
name, method.Name, method.Type.NumOut(), subSig)
|
||||
}
|
||||
if returnType := method.Type.Out(0); returnType != typeOfError {
|
||||
return fmt.Errorf("subscriber %v.%v returns %v not error", name, method.Name, returnType.String())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (g *grpcServer) createSubHandler(sb *subscriber, opts server.Options) broker.Handler {
|
||||
return func(p broker.Event) (err error) {
|
||||
defer func() {
|
||||
if r := recover(); r != nil {
|
||||
g.opts.Logger.Log(logger.ErrorLevel, "panic recovered: ", r)
|
||||
g.opts.Logger.Log(logger.ErrorLevel, string(debug.Stack()))
|
||||
err = errors.InternalServerError("go.micro.server", "panic recovered: %v", r)
|
||||
}
|
||||
}()
|
||||
|
||||
msg := p.Message()
|
||||
// if we don't have headers, create empty map
|
||||
if msg.Header == nil {
|
||||
msg.Header = make(map[string]string)
|
||||
}
|
||||
|
||||
ct := msg.Header["Content-Type"]
|
||||
if len(ct) == 0 {
|
||||
msg.Header["Content-Type"] = defaultContentType
|
||||
ct = defaultContentType
|
||||
}
|
||||
cf, err := g.newGRPCCodec(ct)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
hdr := make(map[string]string, len(msg.Header))
|
||||
for k, v := range msg.Header {
|
||||
hdr[k] = v
|
||||
}
|
||||
delete(hdr, "Content-Type")
|
||||
ctx := metadata.NewContext(context.Background(), hdr)
|
||||
|
||||
results := make(chan error, len(sb.handlers))
|
||||
|
||||
for i := 0; i < len(sb.handlers); i++ {
|
||||
handler := sb.handlers[i]
|
||||
|
||||
var isVal bool
|
||||
var req reflect.Value
|
||||
|
||||
if handler.reqType.Kind() == reflect.Ptr {
|
||||
req = reflect.New(handler.reqType.Elem())
|
||||
} else {
|
||||
req = reflect.New(handler.reqType)
|
||||
isVal = true
|
||||
}
|
||||
if isVal {
|
||||
req = req.Elem()
|
||||
}
|
||||
|
||||
if err = cf.Unmarshal(msg.Body, req.Interface()); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
fn := func(ctx context.Context, msg server.Message) error {
|
||||
var vals []reflect.Value
|
||||
if sb.typ.Kind() != reflect.Func {
|
||||
vals = append(vals, sb.rcvr)
|
||||
}
|
||||
if handler.ctxType != nil {
|
||||
vals = append(vals, reflect.ValueOf(ctx))
|
||||
}
|
||||
|
||||
vals = append(vals, reflect.ValueOf(msg.Payload()))
|
||||
|
||||
returnValues := handler.method.Call(vals)
|
||||
if rerr := returnValues[0].Interface(); rerr != nil {
|
||||
return rerr.(error)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
for i := len(opts.SubWrappers); i > 0; i-- {
|
||||
fn = opts.SubWrappers[i-1](fn)
|
||||
}
|
||||
|
||||
if g.wg != nil {
|
||||
g.wg.Add(1)
|
||||
}
|
||||
go func() {
|
||||
if g.wg != nil {
|
||||
defer g.wg.Done()
|
||||
}
|
||||
err := fn(ctx, &rpcMessage{
|
||||
topic: sb.topic,
|
||||
contentType: ct,
|
||||
payload: req.Interface(),
|
||||
header: msg.Header,
|
||||
body: msg.Body,
|
||||
})
|
||||
results <- err
|
||||
}()
|
||||
}
|
||||
var errors []string
|
||||
for i := 0; i < len(sb.handlers); i++ {
|
||||
if rerr := <-results; rerr != nil {
|
||||
errors = append(errors, rerr.Error())
|
||||
}
|
||||
}
|
||||
if len(errors) > 0 {
|
||||
err = fmt.Errorf("subscriber error: %s", strings.Join(errors, "\n"))
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
func (s *subscriber) Topic() string {
|
||||
return s.topic
|
||||
}
|
||||
|
||||
func (s *subscriber) Subscriber() interface{} {
|
||||
return s.subscriber
|
||||
}
|
||||
|
||||
func (s *subscriber) Endpoints() []*registry.Endpoint {
|
||||
return s.endpoints
|
||||
}
|
||||
|
||||
func (s *subscriber) Options() server.SubscriberOptions {
|
||||
return s.opts
|
||||
}
|
||||
49
server/grpc/util.go
Normal file
49
server/grpc/util.go
Normal file
@ -0,0 +1,49 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"context"
|
||||
"io"
|
||||
"os"
|
||||
"sync"
|
||||
|
||||
"google.golang.org/grpc/codes"
|
||||
)
|
||||
|
||||
// convertCode converts a standard Go error into its canonical code. Note that
|
||||
// this is only used to translate the error returned by the server applications.
|
||||
func convertCode(err error) codes.Code {
|
||||
switch err {
|
||||
case nil:
|
||||
return codes.OK
|
||||
case io.EOF:
|
||||
return codes.OutOfRange
|
||||
case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
|
||||
return codes.FailedPrecondition
|
||||
case os.ErrInvalid:
|
||||
return codes.InvalidArgument
|
||||
case context.Canceled:
|
||||
return codes.Canceled
|
||||
case context.DeadlineExceeded:
|
||||
return codes.DeadlineExceeded
|
||||
}
|
||||
switch {
|
||||
case os.IsExist(err):
|
||||
return codes.AlreadyExists
|
||||
case os.IsNotExist(err):
|
||||
return codes.NotFound
|
||||
case os.IsPermission(err):
|
||||
return codes.PermissionDenied
|
||||
}
|
||||
return codes.Unknown
|
||||
}
|
||||
|
||||
func wait(ctx context.Context) *sync.WaitGroup {
|
||||
if ctx == nil {
|
||||
return nil
|
||||
}
|
||||
wg, ok := ctx.Value("wait").(*sync.WaitGroup)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
return wg
|
||||
}
|
||||
Reference in New Issue
Block a user