Add aliases auth support if the authentication method is LDAP

auth/ldap/ldap.go

@@ -3,12 +3,14 @@ package ldap
 
 import (
 	"github.com/go-ldap/ldap/v3"
+	"log"
 )
 
 // Options holds package configuration
 type Options struct {
-	URI    string
+	Aliases map[string]string
-	UserDn string
+	URI     string
+	UserDn  string
 }
 
 // LDAP authentification backend
@@ -20,6 +22,12 @@ type LDAP struct {
 // Login tries to bind to LDAP
 // Returns (true, nil) if success
 func (a LDAP) Login(username string, password string) (bool, error) {
+	// Resolve stream alias if necessary
+	for aliasFor, ok := a.Cfg.Aliases[username]; ok; {
+		log.Printf("[LDAP] Use stream alias %s for username %s", username, aliasFor)
+		username = aliasFor
+	}
+
 	// Try to bind as user
 	bindDn := "cn=" + username + "," + a.Cfg.UserDn
 	err := a.Conn.Bind(bindDn, password)

docs/ghostream.example.yml

@@ -34,6 +34,11 @@ auth:
   #ldap:
   #  uri: ldap://127.0.0.1:389
   #  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.
+  #  aliases:
+  #    example: demo
+  #
 
 ## Stream forwarding ##
 # Forward an incoming stream to other servers

internal/config/config.go

@@ -42,8 +42,9 @@ func New() *Config {
 				Credentials: make(map[string]string),
 			},
 			LDAP: ldap.Options{
-				URI:    "ldap://127.0.0.1:389",
+				Aliases: make(map[string]string),
-				UserDn: "cn=users,dc=example,dc=com",
+				URI:     "ldap://127.0.0.1:389",
+				UserDn:  "cn=users,dc=example,dc=com",
 			},
 		},
 		Forwarding: make(map[string][]string),