X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fngircd%2Fchannel.c;h=609bbf5b5e976c19a30f2ba7e32103b482ee5cbb;hb=4c113d8850dfc423e3dae2d2f90e7e9a9d42f0b0;hp=5caf7d0ce267fa68598cbca60c67414b29b15f03;hpb=75b719a0c88b58b6de3024413374b066ac4c6849;p=ngircd-alex.git

diff --git a/src/ngircd/channel.c b/src/ngircd/channel.c
index 5caf7d0c..609bbf5b 100644
--- a/src/ngircd/channel.c
+++ b/src/ngircd/channel.c
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2008 by Alexander Barton (alex@barton.de)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,8 +17,6 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: channel.c,v 1.65 2008/02/05 16:31:35 fw Exp $";
-
 #include "imp.h"
 #include <assert.h>
 #include <stdlib.h>
@@ -65,8 +63,16 @@ static bool Delete_Channel PARAMS(( CHANNEL *Chan ));
 GLOBAL void
 Channel_Init( void )
 {
+	CHANNEL *sc;
+
 	My_Channels = NULL;
 	My_Cl2Chan = NULL;
+
+	sc = Channel_Create("&SERVER");
+	if (sc) {
+		Channel_SetModes(sc, "mnPt");
+		Channel_SetTopic(sc, Client_ThisServer(), "Server Messages");
+	}
 } /* Channel_Init */
 
 
@@ -183,30 +189,34 @@ Channel_Join( CLIENT *Client, char *Name )
 {
 	CHANNEL *chan;
 
-	assert( Client != NULL );
-	assert( Name != NULL );
+	assert(Client != NULL);
+	assert(Name != NULL);
 
 	/* Check that the channel name is valid */
-	if( ! Channel_IsValidName( Name )) {
-		IRC_WriteStrClient( Client, ERR_NOSUCHCHANNEL_MSG, Client_ID( Client ), Name );
+	if (! Channel_IsValidName(Name)) {
+		IRC_WriteStrClient(Client, ERR_NOSUCHCHANNEL_MSG,
+				   Client_ID(Client), Name);
 		return false;
 	}
 
-	chan = Channel_Search( Name );
-	if( chan ) {
+	chan = Channel_Search(Name);
+	if(chan) {
 		/* Check if the client is already in the channel */
-		if( Get_Cl2Chan( chan, Client )) return false;
-	}
-	else
-	{
-		/* If the specified channel doesn't exist, the channel is created */
-		chan = Channel_Create( Name );
-		if (!chan) return false;
+		if (Get_Cl2Chan(chan, Client))
+			return false;
+	} else {
+		/* If the specified channel does not exist, the channel
+		 * is now created */
+		chan = Channel_Create(Name);
+		if (!chan)
+			return false;
 	}
 
 	/* Add user to Channel */
-	if( ! Add_Client( chan, Client )) return false;
-	else return true;
+	if (! Add_Client(chan, Client))
+		return false;
+
+	return true;
 } /* Channel_Join */
 
 
@@ -249,16 +259,20 @@ Channel_Part(CLIENT * Client, CLIENT * Origin, const char *Name, const char *Rea
 } /* Channel_Part */
 
 
-/* Kick user from Channel */
+/**
+ * Kick user from Channel
+ */
 GLOBAL void
-Channel_Kick( CLIENT *Client, CLIENT *Origin, const char *Name, const char *Reason )
+Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
+	     const char *Reason )
 {
 	CHANNEL *chan;
 
-	assert( Client != NULL );
-	assert( Origin != NULL );
-	assert( Name != NULL );
-	assert( Reason != NULL );
+	assert(Peer != NULL);
+	assert(Target != NULL);
+	assert(Origin != NULL);
+	assert(Name != NULL);
+	assert(Reason != NULL);
 
 	/* Check that channel exists */
 	chan = Channel_Search( Name );
@@ -268,29 +282,32 @@ Channel_Kick( CLIENT *Client, CLIENT *Origin, const char *Name, const char *Reas
 		return;
 	}
 
-	/* Check that user is on the specified channel */
-	if( ! Channel_IsMemberOf( chan, Origin ))
-	{
-		IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG, Client_ID( Origin ), Name );
-		return;
-	}
+	if (Client_Type(Peer) != CLIENT_SERVER &&
+	    Client_Type(Origin) != CLIENT_SERVICE) {
+		/* Check that user is on the specified channel */
+		if (!Channel_IsMemberOf(chan, Origin)) {
+			IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG,
+					   Client_ID(Origin), Name);
+			return;
+		}
 
-	/* Check if user has operator status */
-	if( ! strchr( Channel_UserModes( chan, Origin ), 'o' ))
-	{
-		IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Name);
-		return;
+		/* Check if user has operator status */
+		if (!strchr(Channel_UserModes(chan, Origin), 'o')) {
+			IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG,
+					   Client_ID(Origin), Name);
+			return;
+		}
 	}
 
 	/* Check that the client to be kicked is on the specified channel */
-	if( ! Channel_IsMemberOf( chan, Client ))
-	{
-		IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( Client ), Name );
+	if (!Channel_IsMemberOf(chan, Target)) {
+		IRC_WriteStrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
+				   Client_ID(Origin), Client_ID(Target), Name );
 		return;
 	}
 
 	/* Kick Client from channel */
-	Remove_Client( REMOVE_KICK, chan, Client, Origin, Reason, true);
+	Remove_Client( REMOVE_KICK, chan, Target, Origin, Reason, true);
 } /* Channel_Kick */
 
 
@@ -419,7 +436,7 @@ Channel_Next( CHANNEL *Chan )
 GLOBAL CHANNEL *
 Channel_Search( const char *Name )
 {
-	/* Channel-Struktur suchen */
+	/* Search channel structure */
 
 	CHANNEL *c;
 	UINT32 search_hash;
@@ -432,7 +449,7 @@ Channel_Search( const char *Name )
 	{
 		if( search_hash == c->hash )
 		{
-			/* lt. Hash-Wert: Treffer! */
+			/* hash hit */
 			if( strcasecmp( Name, c->name ) == 0 ) return c;
 		}
 		c = c->next;
@@ -496,7 +513,11 @@ Channel_IsValidName( const char *Name )
 {
 	assert( Name != NULL );
 
-	if (strchr("+#", Name[0]) == NULL)
+#ifdef STRICT_RFC
+	if (strlen(Name) <= 1)
+		return false;
+#endif
+	if (strchr("#&+", Name[0]) == NULL)
 		return false;
 	if (strlen(Name) >= CHANNEL_NAME_LEN)
 		return false;
@@ -734,6 +755,10 @@ Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
 
 	is_member = has_voice = is_op = false;
 
+	/* The server itself always can send messages :-) */
+	if (Client_ThisServer() == From)
+		return true;
+
 	if (Channel_IsMemberOf(Chan, From)) {
 		is_member = true;
 		if (strchr(Channel_UserModes(Chan, From), 'v'))
@@ -762,30 +787,21 @@ Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
 
 
 GLOBAL bool
-Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Text)
-{
-	if (!Can_Send_To_Channel(Chan, From))
-		return IRC_WriteStrClient(From, ERR_CANNOTSENDTOCHAN_MSG, Client_ID(From), Channel_Name(Chan));
-
-	if (Client_Conn(From) > NONE)
-		Conn_UpdateIdle(Client_Conn(From));
-
-	return IRC_WriteStrChannelPrefix(Client, Chan, From, true,
-			"PRIVMSG %s :%s", Channel_Name(Chan), Text);
-}
-
-
-GLOBAL bool
-Channel_Notice(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Text)
+Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Command,
+	      bool SendErrors, const char *Text)
 {
-	if (!Can_Send_To_Channel(Chan, From))
-		return true; /* no error, see RFC 2812 */
+	if (!Can_Send_To_Channel(Chan, From)) {
+		if (! SendErrors)
+			return CONNECTED;	/* no error, see RFC 2812 */
+		return IRC_WriteStrClient(From, ERR_CANNOTSENDTOCHAN_MSG,
+					  Client_ID(From), Channel_Name(Chan));
+	}
 
 	if (Client_Conn(From) > NONE)
 		Conn_UpdateIdle(Client_Conn(From));
 
 	return IRC_WriteStrChannelPrefix(Client, Chan, From, true,
-			"NOTICE %s :%s", Channel_Name(Chan), Text);
+			"%s %s :%s", Command, Channel_Name(Chan), Text);
 }
 
 
@@ -839,7 +855,7 @@ Add_Client( CHANNEL *Chan, CLIENT *Client )
 	assert( Chan != NULL );
 	assert( Client != NULL );
 
-	/* neue CL2CHAN-Struktur anlegen */
+	/* Create new CL2CHAN structure */
 	cl2chan = (CL2CHAN *)malloc( sizeof( CL2CHAN ));
 	if( ! cl2chan )
 	{
@@ -850,7 +866,7 @@ Add_Client( CHANNEL *Chan, CLIENT *Client )
 	cl2chan->client = Client;
 	strcpy( cl2chan->modes, "" );
 
-	/* Verketten */
+	/* concatenate */
 	cl2chan->next = My_Cl2Chan;
 	My_Cl2Chan = cl2chan;
 
@@ -871,6 +887,11 @@ Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const ch
 	assert( Origin != NULL );
 	assert( Reason != NULL );
 
+	/* Do not inform other servers if the channel is local to this server,
+	 * regardless of what the caller requested! */
+	if(InformServer)
+		InformServer = !Channel_IsLocal(Chan);
+
 	last_cl2chan = NULL;
 	cl2chan = My_Cl2Chan;
 	while( cl2chan )
@@ -884,7 +905,7 @@ Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const ch
 	c = cl2chan->channel;
 	assert( c != NULL );
 
-	/* Aus Verkettung loesen und freigeben */
+	/* maintain cl2chan list */
 	if( last_cl2chan ) last_cl2chan->next = cl2chan->next;
 	else My_Cl2Chan = cl2chan->next;
 	free( cl2chan );
@@ -892,14 +913,16 @@ Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const ch
 	switch( Type )
 	{
 		case REMOVE_QUIT:
-			/* QUIT: other servers have already been notified, see Client_Destroy();
-			 * so only inform other clients in same channel. */
+			/* QUIT: other servers have already been notified, 
+			 * see Client_Destroy(); so only inform other clients
+			 * in same channel. */
 			assert( InformServer == false );
 			LogDebug("User \"%s\" left channel \"%s\" (%s).",
 					Client_Mask( Client ), c->name, Reason );
 			break;
 		case REMOVE_KICK:
-			/* User was KICKed: inform other servers and all users in channel */
+			/* User was KICKed: inform other servers (public
+			 * channels) and all users in the channel */
 			if( InformServer )
 				IRC_WriteStrServersPrefix( Client_NextHop( Origin ),
 					Origin, "KICK %s %s :%s", c->name, Client_ID( Client ), Reason);
@@ -930,7 +953,7 @@ Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const ch
 			}
 	}
 
-	/* Wenn Channel nun leer und nicht pre-defined: loeschen */
+	/* When channel is empty and is not pre-defined, delete */
 	if( ! strchr( Channel_Modes( Chan ), 'P' ))
 	{
 		if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan );
@@ -1002,6 +1025,26 @@ Channel_ShowInvites( CLIENT *Client, CHANNEL *Channel )
 }
 
 
+/**
+ * Log a message to the local &SERVER channel, if it exists.
+ */
+GLOBAL void
+Channel_LogServer(char *msg)
+{
+	CHANNEL *sc;
+	CLIENT *c;
+
+	assert(msg != NULL);
+
+	sc = Channel_Search("&SERVER");
+	if (!sc)
+		return;
+
+	c = Client_ThisServer();
+	Channel_Write(sc, c, c, "PRIVMSG", false, msg);
+} /* Channel_LogServer */
+
+
 static CL2CHAN *
 Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
 {
@@ -1030,7 +1073,7 @@ Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel )
 static bool
 Delete_Channel( CHANNEL *Chan )
 {
-	/* Channel-Struktur loeschen */
+	/* delete channel structure */
 
 	CHANNEL *chan, *last_chan;
 
@@ -1046,11 +1089,11 @@ Delete_Channel( CHANNEL *Chan )
 
 	Log( LOG_DEBUG, "Freed channel structure for \"%s\".", Chan->name );
 
-	/* Invite- und Ban-Lists aufraeumen */
+	/* free invite and ban lists */
 	Lists_Free( &chan->list_bans );
 	Lists_Free( &chan->list_invites );
 
-	/* Neu verketten und freigeben */
+	/* maintain channel list */
 	if( last_chan ) last_chan->next = chan->next;
 	else My_Channels = chan->next;
 	free( chan );
@@ -1058,5 +1101,4 @@ Delete_Channel( CHANNEL *Chan )
 	return true;
 } /* Delete_Channel */
 
-
 /* -eof- */