README: add better alternative

README.md

@@ -11,6 +11,13 @@
 
 This project was developped at [Cr@ns](https://crans.org/) to stream events.
 
+> **Note**
+> *This project is no longer maintained!*
+>
+> As an alternative, you should try [Galène](https://galene.org/) which supports [WebRTC-HTTP ingestion protocol (WHIP)](https://datatracker.ietf.org/doc/draft-ietf-wish-whip/) for low-latency streaming.
+> OBS Studio introduced WHIP output in version 30.0.
+> Galène supports WHIP since Galène 0.8.
+
 Features:
 
 -   WebRTC playback with a lightweight web interface.

auth/auth.go

@@ -20,7 +20,7 @@ type Options struct {
 
 // Backend to log user in
 type Backend interface {
-	Login(string, string) (bool, error)
+	Login(string, string) (bool, string, error)
 	Close()
 }
 

auth/basic/basic.go

@@ -23,15 +23,15 @@ type Basic struct {
 
 // Login hashs password and compare
 // Returns (true, nil) if success
-func (a Basic) Login(username string, password string) (bool, error) {
+func (a Basic) Login(username string, password string) (bool, string, error) {
 	hash, ok := a.Cfg.Credentials[username]
 	if !ok {
-		return false, errors.New("user not found in credentials")
+		return false, "", errors.New("user not found in credentials")
 	}
 	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
 
 	// Login succeeded if no error
-	return err == nil, err
+	return err == nil, username, err
 }
 
 // Close has no connection to close

auth/basic/basic_test.go

@@ -10,19 +10,19 @@ func TestBasicLogin(t *testing.T) {
 
 	// Test good credentials
 	backend, _ := New(&Options{Credentials: basicCredentials})
-	ok, err := backend.Login("demo", "demo")
+	ok, _, err := backend.Login("demo", "demo")
 	if !ok {
 		t.Error("Error while logging with the basic authentication:", err)
 	}
 
 	// Test bad username
-	ok, err = backend.Login("baduser", "demo")
+	ok, _, err = backend.Login("baduser", "demo")
 	if ok {
 		t.Error("Authentification failed to fail:", err)
 	}
 
 	// Test bad password
-	ok, err = backend.Login("demo", "badpass")
+	ok, _, err = backend.Login("demo", "badpass")
 	if ok {
 		t.Error("Authentification failed to fail:", err)
 	}

auth/ldap/ldap.go

@@ -4,11 +4,12 @@ package ldap
 import (
 	"github.com/go-ldap/ldap/v3"
 	"log"
+	"strings"
 )
 
 // Options holds package configuration
 type Options struct {
-	Aliases map[string]string
+	Aliases map[string]map[string]string
 	URI     string
 	UserDn  string
 }
@@ -21,19 +22,37 @@ type LDAP struct {
 
 // Login tries to bind to LDAP
 // Returns (true, nil) if success
-func (a LDAP) Login(username string, password string) (bool, error) {
+func (a LDAP) Login(username string, password string) (bool, string, error) {
+	aliasSplit := strings.SplitN(username, "__", 2)
+	potentialUsernames := []string{username}
+
+	if len(aliasSplit) == 2 {
+		alias := aliasSplit[0]
+		trueUsername := aliasSplit[1]
 		// Resolve stream alias if necessary
-	for aliasFor, ok := a.Cfg.Aliases[username]; ok; aliasFor, ok = a.Cfg.Aliases[username] {
-		log.Printf("[LDAP] Use stream alias %s for username %s", username, aliasFor)
-		username = aliasFor
+		if aliases, ok := a.Cfg.Aliases[alias]; ok {
+			if _, ok := aliases[trueUsername]; ok {
+				log.Printf("[LDAP] Use stream alias %s for username %s", alias, trueUsername)
+				potentialUsernames = append(potentialUsernames, trueUsername)
+			}
+		}
 	}
 
+	var err error = nil
+	for _, username := range potentialUsernames {
 		// Try to bind as user
 		bindDn := "cn=" + username + "," + a.Cfg.UserDn
-	err := a.Conn.Bind(bindDn, password)
-
+		log.Printf("[LDAP] Logging to %s...", bindDn)
+		err = a.Conn.Bind(bindDn, password)
+		if err == nil {
 			// Login succeeded if no error
-	return err == nil, err
+			return true, aliasSplit[0], nil
+		}
+	}
+
+	log.Printf("[LDAP] Logging failed: %s", err)
+	// Unable to log in
+	return err == nil, "", err
 }
 
 // Close LDAP connection

docs/ghostream.example.yml

@@ -36,8 +36,10 @@ auth:
   #  userdn: cn=users,dc=example,dc=com
   #
   #  # You can define aliases, to stream on stream.example.com/example with the credentials of the demo account.
+  #  # You will have to use the streamid example__demo:password
   #  aliases:
-  #    example: demo
+  #    example:
+  #      demo: ignored
   #
 
 ## Stream forwarding ##

internal/config/config.go

@@ -42,7 +42,7 @@ func New() *Config {
 				Credentials: make(map[string]string),
 			},
 			LDAP: ldap.Options{
-				Aliases: make(map[string]string),
+				Aliases: make(map[string]map[string]string),
 				URI:     "ldap://127.0.0.1:389",
 				UserDn:  "cn=users,dc=example,dc=com",
 			},

stream/srt/srt.go

@@ -79,20 +79,22 @@ func Serve(streams *messaging.Streams, authBackend auth.Backend, cfg *Options) {
 
 		if len(split) > 1 {
 			// password was provided so it is a streamer
-			name, password := split[0], split[1]
+			name, password := strings.ToLower(split[0]), split[1]
 			if authBackend != nil {
 				// check password
-				if ok, err := authBackend.Login(name, password); !ok || err != nil {
+				ok, username, err := authBackend.Login(name, password)
+				if !ok || err != nil {
 					log.Printf("Failed to authenticate for stream %s", name)
 					s.Close()
 					continue
 				}
+				name = username
 			}
 
 			go handleStreamer(s, streams, name)
 		} else {
 			// password was not provided so it is a viewer
-			name := split[0]
+			name := strings.ToLower(split[0])
 
 			// Send stream
 			go handleViewer(s, streams, name)

web/handler.go

@@ -21,7 +21,7 @@ import (
 
 var (
 	// Precompile regex
-	validPath = regexp.MustCompile("^/[a-z0-9@_-]*$")
+	validPath = regexp.MustCompile("^/[a-zA-Z0-9@_-]*$")
 
 	counterMutex     = new(sync.Mutex)
 	connectedClients = make(map[string]map[string]int64)
@@ -42,7 +42,7 @@ func viewerHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Get stream ID from URL, or from domain name
-	path := r.URL.Path[1:]
+	path := strings.ToLower(r.URL.Path[1:])
 	host := r.Host
 	if strings.Contains(host, ":") {
 		realHost, _, err := net.SplitHostPort(r.Host)
@@ -58,7 +58,7 @@ func viewerHandler(w http.ResponseWriter, r *http.Request) {
 		if path == "about" {
 			path = ""
 		} else {
-			path = streamID
+			path = strings.ToLower(streamID)
 		}
 	}
 
@@ -97,6 +97,7 @@ func staticHandler() http.Handler {
 func statisticsHandler(w http.ResponseWriter, r *http.Request) {
 	// Retrieve stream name from URL
 	name := strings.SplitN(strings.Replace(r.URL.Path[7:], "/", "", -1), "@", 2)[0]
+	name = strings.ToLower(name)
 	userCount := 0
 
 	// Clients have a unique generated identifier per session, that expires in 40 seconds.

web/template/index.html

@@ -25,7 +25,7 @@
   <ul>
     <li>
       <b>Serveur :</b>
-      <code>srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?IDENTIFIANT:MOT_DE_PASSE</code>,
+      <code>srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT:MOT_DE_PASSE</code>,
       avec <code>IDENTIFIANT</code> et <code>MOT_DE_PASSE</code>
       vos identifiants.
     </li>