support turn cert itself in config

pkg/config/config.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"fmt"
+	"io/ioutil"
 	"os"
 	"time"
 
@@ -100,6 +101,8 @@ type TURNConfig struct {
 	Domain   string `yaml:"domain"`
 	CertFile string `yaml:"cert_file"`
 	KeyFile  string `yaml:"key_file"`
+	Cert     string `yaml:"cert"`
+	Key      string `yaml:"key"`
 	TLSPort  int    `yaml:"tls_port"`
 	UDPPort  int    `yaml:"udp_port"`
 }
@@ -197,6 +200,14 @@ func NewConfig(confString string, c *cli.Context) (*Config, error) {
 			return nil, err
 		}
 	}
+
+	if conf.TURN.Cert != "" && conf.TURN.CertFile != "" {
+		writeToFile(conf.TURN.CertFile, conf.TURN.Cert, false)
+	}
+	if conf.TURN.Key != "" && conf.TURN.KeyFile != "" {
+		writeToFile(conf.TURN.KeyFile, conf.TURN.Key, false)
+	}
+
 	return conf, nil
 }
 
@@ -257,3 +268,13 @@ func (conf *Config) unmarshalKeys(keys string) error {
 func GetAudioConfig(conf *Config) AudioConfig {
 	return conf.Audio
 }
+
+func writeToFile(path, content string, overwrite bool) {
+	if !overwrite {
+		// check if file exists
+		if _, err := os.Stat(path); err == nil {
+			return
+		}
+	}
+	ioutil.WriteFile(path, []byte(content), 0600)
+}

pkg/service/turn.go

@@ -50,7 +50,7 @@ func NewTurnServer(conf *config.Config, authHandler turn.AuthHandler) (*turn.Ser
 			return nil, errors.New("TURN domain required")
 		}
 
-		if IsValidDomain(turnConf.Domain) == false {
+		if !IsValidDomain(turnConf.Domain) {
 			return nil, errors.New("TURN domain is not correct")
 		}
 

pkg/service/wire_gen.go

@@ -1,7 +1,8 @@
 // Code generated by Wire. DO NOT EDIT.
 
 //go:generate go run github.com/google/wire/cmd/wire
-//+build !wireinject
+//go:build !wireinject
+// +build !wireinject
 
 package service