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focalboard/server/main/main.go

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// Package classification Focalboard Server
//
// Server for Focalboard
//
// Schemes: http, https
// Host: localhost
// BasePath: /api/v1
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// Version: 1.0.0
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// License: Custom https://github.com/mattermost/focalboard/blob/main/LICENSE.txt
// Contact: Focalboard<api@focalboard.com> https://www.focalboard.com
//
// Consumes:
// - application/json
//
// Produces:
// - application/json
//
// securityDefinitions:
// BearerAuth:
// type: apiKey
// name: Authorization
// in: header
// description: 'Pass session token using Bearer authentication, e.g. set header "Authorization: Bearer <session token>"'
//
// swagger:meta
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package main
import (
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"C"
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"flag"
"log"
"os"
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"os/signal"
"syscall"
"time"
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"github.com/mattermost/focalboard/server/model"
"github.com/mattermost/focalboard/server/server"
"github.com/mattermost/focalboard/server/services/config"
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)
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// Active server used with shared code (dll)
var pServer *server.Server
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const (
timeBetweenPidMonitoringChecks = 2 * time.Second
)
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func isProcessRunning(pid int) bool {
process, err := os.FindProcess(pid)
if err != nil {
return false
}
err = process.Signal(syscall.Signal(0))
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return err == nil
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}
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// monitorPid is used to keep the server lifetime in sync with another (client app) process
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func monitorPid(pid int) {
log.Printf("Monitoring PID: %d", pid)
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go func() {
for {
if !isProcessRunning(pid) {
log.Printf("Monitored process not found, exiting.")
os.Exit(1)
}
time.Sleep(timeBetweenPidMonitoringChecks)
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}
}()
}
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func logInfo() {
log.Println("Focalboard Server")
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log.Println("Version: " + model.CurrentVersion)
log.Println("Edition: " + model.Edition)
log.Println("Build Number: " + model.BuildNumber)
log.Println("Build Date: " + model.BuildDate)
log.Println("Build Hash: " + model.BuildHash)
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}
func main() {
logInfo()
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// config.json file
config, err := config.ReadConfigFile()
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if err != nil {
log.Fatal("Unable to read the config file: ", err)
return
}
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// Command line args
pMonitorPid := flag.Int("monitorpid", -1, "a process ID")
pPort := flag.Int("port", config.Port, "the port number")
pSingleUser := flag.Bool("single-user", false, "single user mode")
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pDBType := flag.String("dbtype", "", "Database type")
pDBConfig := flag.String("dbconfig", "", "Database config")
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flag.Parse()
singleUser := false
if pSingleUser != nil {
singleUser = *pSingleUser
}
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singleUserToken := ""
if singleUser {
singleUserToken = os.Getenv("FOCALBOARD_SINGLE_USER_TOKEN")
if len(singleUserToken) < 1 {
log.Fatal("The FOCALBOARD_SINGLE_USER_TOKEN environment variable must be set for single user mode ")
return
}
log.Printf("Single user mode")
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}
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if pMonitorPid != nil && *pMonitorPid > 0 {
monitorPid(*pMonitorPid)
}
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// Override config from commandline
if pDBType != nil && len(*pDBType) > 0 {
config.DBType = *pDBType
log.Printf("DBType from commandline: %s", *pDBType)
}
if pDBConfig != nil && len(*pDBConfig) > 0 {
config.DBConfigString = *pDBConfig
// Don't echo, as the confix string may contain passwords
log.Printf("DBConfigString overriden from commandline")
}
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if pPort != nil && *pPort > 0 && *pPort != config.Port {
// Override port
log.Printf("Port from commandline: %d", *pPort)
config.Port = *pPort
}
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server, err := server.New(config, singleUserToken)
if err != nil {
log.Fatal("server.New ERROR: ", err)
}
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if err := server.Start(); err != nil {
log.Fatal("server.Start ERROR: ", err)
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}
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// Setting up signal capturing
stop := make(chan os.Signal, 1)
signal.Notify(stop, os.Interrupt)
// Waiting for SIGINT (pkill -2)
<-stop
server.Shutdown()
}
// StartServer starts the server
//export StartServer
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func StartServer(webPath *C.char, port int, singleUserToken, dbConfigString *C.char) {
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startServer(
C.GoString(webPath),
port,
C.GoString(singleUserToken),
C.GoString(dbConfigString),
)
}
// StopServer stops the server
//export StopServer
func StopServer() {
stopServer()
}
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func startServer(webPath string, port int, singleUserToken, dbConfigString string) {
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logInfo()
if pServer != nil {
stopServer()
pServer = nil
}
// config.json file
config, err := config.ReadConfigFile()
if err != nil {
log.Fatal("Unable to read the config file: ", err)
return
}
if len(webPath) > 0 {
config.WebPath = webPath
}
if port > 0 {
config.Port = port
}
if len(dbConfigString) > 0 {
config.DBConfigString = dbConfigString
}
pServer, err = server.New(config, singleUserToken)
if err != nil {
log.Fatal("server.New ERROR: ", err)
}
if err := pServer.Start(); err != nil {
log.Fatal("server.Start ERROR: ", err)
}
}
func stopServer() {
if pServer == nil {
return
}
err := pServer.Shutdown()
if err != nil {
log.Fatal("server.Shutdown ERROR: ", err)
}
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}