/
main.go
179 lines (149 loc) · 3.79 KB
/
main.go
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package main
import (
"fmt"
"github.com/ExchangeUnion/xud-docker-api/launcher"
"github.com/ExchangeUnion/xud-docker-api/logging"
"github.com/ExchangeUnion/xud-docker-api/service"
"github.com/docker/docker/pkg/homedir"
"github.com/gin-contrib/cors"
"github.com/gin-gonic/gin"
socketio "github.com/googollee/go-socket.io"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"net/http"
"os"
"path/filepath"
"strings"
)
var (
logger = initLogger()
router = initRouter()
sioServer *socketio.Server
port uint16
tls bool
network string
)
func initLogger() *logrus.Entry {
logrus.SetLevel(logrus.DebugLevel)
logrus.SetFormatter(&logging.Formatter{
})
logrus.SetOutput(os.Stdout)
logger := logrus.NewEntry(logrus.StandardLogger())
return logger
}
type MyWriter struct {
}
func (MyWriter) Write(p []byte) (int, error) {
logger.Debugf("%s", strings.TrimSpace(string(p)))
return len(p), nil
}
func initRouter() *gin.Engine {
r := gin.New()
// Configuring Gin middlewares
//r.Use(ginlogrus.Logger(logrus.StandardLogger()))
//r.Use(gin.LoggerWithWriter(MyWriter{}))
r.Use(logging.LoggerOverLogrus())
r.Use(gin.Recovery())
r.NoRoute(func(c *gin.Context) {
if strings.HasPrefix(c.Request.URL.Path, "/api") {
c.JSON(404, gin.H{"message": "not found"})
} else {
// redirect other non-API requests to ui/index.html to fit SPA requirements
c.File("ui/index.html")
}
})
r.NoMethod(func(c *gin.Context) {
c.JSON(405, gin.H{"message": "method not allowed"})
})
setupCors(r)
return r
}
func setupCors(r gin.IRouter) {
// Configuring CORS
// - No origin allowed by default
// - GET, POST, PUT, HEAD methods
// - Credentials share disabled
// - Preflight requests cached for 12 hours
config := cors.DefaultConfig()
config.AllowOrigins = []string{"*"}
r.Use(cors.New(config))
}
func initSioServer() {
server, err := NewSioServer(network)
if err != nil {
logger.Fatal(err)
}
sioServer = server
initSioConsole()
go func() {
err := server.Serve()
defer func() {
err := server.Close()
if err != nil {
logger.Fatalf("Failed to close socket.io server: %s", err)
}
}()
if err != nil {
logger.Fatal("Failed to start socket.io server")
}
}()
router.GET("/socket.io/", gin.WrapH(server))
router.Handle("WS", "/socket.io/", gin.WrapH(server))
}
func initLauncherWs() {
router.GET("/launcher", gin.WrapF(launcher.WsHandler))
router.Handle("WS", "/launcher", gin.WrapF(launcher.WsHandler))
go launcher.StartLauncherRegistry()
launcher.ConfigureRouter(router)
}
func initServiceManager() {
logger.Debug("Creating service manager")
manager, err := service.NewManager(network)
if err != nil {
logger.Fatalf("Failed to create service manager: %s", err)
}
defer func() {
err := manager.Close()
if err != nil {
logger.Fatalf("Failed to close service manager: %s", err)
}
}()
manager.ConfigureRouter(router)
}
func serve() error {
var err error
addr := fmt.Sprintf(":%d", port)
logger.Infof("Serving at %s", addr)
if tls {
certFile := filepath.Join(homedir.Get(), ".proxy", "tls.crt")
keyFile := filepath.Join(homedir.Get(), ".proxy", "tls.key")
err = http.ListenAndServeTLS(addr, certFile, keyFile, router)
} else {
err = http.ListenAndServe(addr, router)
}
if err != nil {
return err
}
return nil
}
func main() {
var err error
network = os.Getenv("NETWORK")
cmd := &cobra.Command{
Use: "proxy",
Short: "The API gateway of xud-docker",
}
cmd.PersistentFlags().Uint16VarP(&port, "port", "p", 8080, "The port to listen")
cmd.PersistentFlags().BoolVar(&tls, "tls", false, "Enable TLS support")
err = cmd.Execute()
if err != nil {
logger.Fatalf("Failed to parse command-line options: %s", err)
}
initSioServer()
initLauncherWs()
initServiceManager()
err = serve()
if err != nil {
logger.Fatalf("Failed to serve: %s", err)
}
}