]> arthur.barton.de Git - ngircd-alex.git/blobdiff - src/ngircd/irc-login.c
New function Introduce_Client() to announce new local and remote users.
[ngircd-alex.git] / src / ngircd / irc-login.c
index 2fdc5d44d8c9996f6e377a920985766f5e1ca692..cfdf9d010fe3f924c63f5ce969c2f17ff5bbe255 100644 (file)
 
 static bool Hello_User PARAMS(( CLIENT *Client ));
 static void Kill_Nick PARAMS(( char *Nick, char *Reason ));
+static void Introduce_Client PARAMS(( CLIENT *From, const char *Nick,
+                                    const int HopCount, const char *User,
+                                    const char *Host, const int Token,
+                                    const char *Mode, const char *Name ));
 
 
 /**
@@ -168,6 +172,7 @@ GLOBAL bool
 IRC_NICK( CLIENT *Client, REQUEST *Req )
 {
        CLIENT *intr_c, *target, *c;
+       CONN_ID conn;
        char *nick, *user, *hostname, *modes, *info;
        int token, hops;
 
@@ -305,6 +310,7 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
                                                  Client_ID(Client), Req->command);
 
                if (Req->argc >= 7) {
+                       /* RFC 2813 compatible syntax */
                        nick = Req->argv[0];
                        hops = atoi(Req->argv[1]);
                        user = Req->argv[2];
@@ -313,6 +319,7 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
                        modes = Req->argv[5] + 1;
                        info = Req->argv[6];
                } else {
+                       /* RFC 1459 compatible syntax */
                        nick = Req->argv[0];
                        hops = 1;
                        user = Req->argv[0];
@@ -320,6 +327,15 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
                        token = atoi(Req->argv[1]);
                        modes = "";
                        info = Req->argv[0];
+
+                       conn = Client_Conn(Client);
+                       if (conn != NONE &&
+                           !(Conn_Options(conn) & CONN_RFC1459)) {
+                               Log(LOG_INFO,
+                                   "Switching connection %d (\"%s\") to RFC 1459 compatibility mode.",
+                                   conn, Client_ID(Client));
+                               Conn_SetOption(conn, CONN_RFC1459);
+                       }
                }
 
                /* Nick ueberpruefen */
@@ -359,8 +375,11 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
                if( *modes ) Log( LOG_DEBUG, "User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).", Client_Mask( c ), modes, Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
                else Log( LOG_DEBUG, "User \"%s\" registered (via %s, on %s, %d hop%s).", Client_Mask( c ), Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
 
-               /* Andere Server, ausser dem Introducer, informieren */
-               IRC_WriteStrServersPrefix( Client, Client, "NICK %s %d %s %s %d %s :%s", Req->argv[0], atoi( Req->argv[1] ) + 1, Req->argv[2], Req->argv[3], Client_MyToken( intr_c ), Req->argv[5], Req->argv[6] );
+               /* Inform other servers about the new client */
+               Introduce_Client(Client, Req->argv[0], atoi(Req->argv[1]) + 1,
+                                Req->argv[2], Req->argv[3],
+                                Client_MyToken(intr_c), Req->argv[5],
+                                Req->argv[6]);
 
                return CONNECTED;
        }
@@ -368,48 +387,88 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
 } /* IRC_NICK */
 
 
+/**
+ * Handler for the IRC command "USER".
+ */
 GLOBAL bool
-IRC_USER( CLIENT *Client, REQUEST *Req )
+IRC_USER(CLIENT * Client, REQUEST * Req)
 {
+       CLIENT *c;
 #ifdef IDENTAUTH
        char *ptr;
 #endif
 
-       assert( Client != NULL );
-       assert( Req != NULL );
+       assert(Client != NULL);
+       assert(Req != NULL);
 
+       if (Client_Type(Client) == CLIENT_GOTNICK ||
 #ifndef STRICT_RFC
-       if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
-#else
-       if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
+           Client_Type(Client) == CLIENT_UNKNOWN ||
 #endif
+           Client_Type(Client) == CLIENT_GOTPASS)
        {
-               /* Wrong number of parameters? */
-               if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+               /* New connection */
+               if (Req->argc != 4)
+                       return IRC_WriteStrClient(Client,
+                                                 ERR_NEEDMOREPARAMS_MSG,
+                                                 Client_ID(Client),
+                                                 Req->command);
 
                /* User name */
 #ifdef IDENTAUTH
-               ptr = Client_User( Client );
-               if( ! ptr || ! *ptr || *ptr == '~' ) Client_SetUser( Client, Req->argv[0], false );
+               ptr = Client_User(Client);
+               if (!ptr || !*ptr || *ptr == '~')
+                       Client_SetUser(Client, Req->argv[0], false);
 #else
-               Client_SetUser( Client, Req->argv[0], false );
+               Client_SetUser(Client, Req->argv[0], false);
 #endif
 
-               /* "Real name" or user info text: Don't set it to the empty string, the original ircd
-                * can't deal with such "real names" (e. g. "USER user * * :") ... */
-               if( *Req->argv[3] ) Client_SetInfo( Client, Req->argv[3] );
-               else Client_SetInfo( Client, "-" );
+               /* "Real name" or user info text: Don't set it to the empty
+                * string, the original ircd can't deal with such "real names"
+                * (e. g. "USER user * * :") ... */
+               if (*Req->argv[3])
+                       Client_SetInfo(Client, Req->argv[3]);
+               else
+                       Client_SetInfo(Client, "-");
 
-               Log( LOG_DEBUG, "Connection %d: got valid USER command ...", Client_Conn( Client ));
-               if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
-               else Client_SetType( Client, CLIENT_GOTUSER );
+               LogDebug("Connection %d: got valid USER command ...",
+                   Client_Conn(Client));
+               if (Client_Type(Client) == CLIENT_GOTNICK)
+                       return Hello_User(Client);
+               else
+                       Client_SetType(Client, CLIENT_GOTUSER);
                return CONNECTED;
+
+       } else if (Client_Type(Client) == CLIENT_SERVER ||
+                  Client_Type(Client) == CLIENT_SERVICE) {
+               /* Server/service updating an user */
+               if (Req->argc != 4)
+                       return IRC_WriteStrClient(Client,
+                                                 ERR_NEEDMOREPARAMS_MSG,
+                                                 Client_ID(Client),
+                                                 Req->command);
+               c = Client_Search(Req->prefix);
+               if (!c)
+                       return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+                                                 Client_ID(Client),
+                                                 Req->prefix);
+
+               Client_SetUser(c, Req->argv[0], true);
+               Client_SetHostname(c, Req->argv[1]);
+               Client_SetInfo(c, Req->argv[3]);
+
+               LogDebug("Connection %d: got valid USER command for \"%s\".",
+                        Client_Conn(Client), Client_Mask(c));
+               return CONNECTED;
+       } else if (Client_Type(Client) == CLIENT_USER) {
+               /* Already registered connection */
+               return IRC_WriteStrClient(Client, ERR_ALREADYREGISTRED_MSG,
+                                         Client_ID(Client));
+       } else {
+               /* Unexpected/invalid connection state? */
+               return IRC_WriteStrClient(Client, ERR_NOTREGISTERED_MSG,
+                                         Client_ID(Client));
        }
-       else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
-       {
-               return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
-       }
-       else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
 } /* IRC_USER */
 
 
@@ -616,6 +675,8 @@ IRC_PONG(CLIENT *Client, REQUEST *Req)
 static bool
 Hello_User(CLIENT * Client)
 {
+       char modes[CLIENT_MODE_LEN + 1] = "+";
+
        assert(Client != NULL);
 
        /* Check password ... */
@@ -632,10 +693,9 @@ Hello_User(CLIENT * Client)
            Client_Mask(Client), Client_Conn(Client));
 
        /* Inform other servers */
-       IRC_WriteStrServers(NULL, "NICK %s 1 %s %s 1 +%s :%s",
-                           Client_ID(Client), Client_User(Client),
-                           Client_Hostname(Client), Client_Modes(Client),
-                           Client_Info(Client));
+       strlcat(modes, Client_Modes(Client), sizeof(modes));
+       Introduce_Client(NULL, Client_ID(Client), 1, Client_User(Client),
+                        Client_Hostname(Client), 1, modes, Client_Info(Client));
 
        if (!IRC_WriteStrClient
            (Client, RPL_WELCOME_MSG, Client_ID(Client), Client_Mask(Client)))
@@ -691,4 +751,16 @@ Kill_Nick( char *Nick, char *Reason )
 } /* Kill_Nick */
 
 
+static void
+Introduce_Client(CLIENT *From, const char *Nick, const int HopCount,
+const char *User, const char *Host, const int Token, const char *Mode,
+const char *Name)
+{
+       IRC_WriteStrServersPrefix(From,
+                                 From != NULL ? From : Client_ThisServer(),
+                                 "NICK %s %d %s %s %d %s :%s",
+                                 Nick, HopCount, User, Host, Token, Mode, Name);
+} /* Introduce_Client */
+
+
 /* -eof- */