]> arthur.barton.de Git - ngircd-alex.git/blobdiff - src/ngircd/irc-channel.c
Implement the IRC command "SERVLIST"
[ngircd-alex.git] / src / ngircd / irc-channel.c
index c678ceeb3f4160a933c6e845ed427e45c7aff70c..27414d38b5771666c402dba0a259018e6f6e06df 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2008 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
@@ -14,8 +14,6 @@
 
 #include "portab.h"
 
-static char UNUSED id[] = "$Id: irc-channel.c,v 1.45 2008/02/24 18:57:38 fw Exp $";
-
 #include "imp.h"
 #include <assert.h>
 #include <stdlib.h>
@@ -26,6 +24,7 @@ static char UNUSED id[] = "$Id: irc-channel.c,v 1.45 2008/02/24 18:57:38 fw Exp
 #include "conn.h"
 #include "client.h"
 #include "channel.h"
+#include "conn-func.h"
 #include "lists.h"
 #include "log.h"
 #include "match.h"
@@ -70,6 +69,10 @@ join_allowed(CLIENT *Client, CLIENT *target, CHANNEL *chan,
        bool is_invited, is_banned;
        const char *channel_modes;
 
+       /* Allow IRC operators to overwrite channel limits */
+       if (strchr(Client_Modes(Client), 'o'))
+               return true;
+
        is_banned = Lists_Check(Channel_GetListBans(chan), target);
        is_invited = Lists_Check(Channel_GetListInvites(chan), target);
 
@@ -117,27 +120,60 @@ join_set_channelmodes(CHANNEL *chan, CLIENT *target, const char *flags)
 }
 
 
+static void
+cb_join_forward(CLIENT *To, CLIENT *Prefix, void *Data)
+{
+       CONN_ID conn;
+       char str[COMMAND_LEN], *ptr = NULL;
+
+       strlcpy(str, (char *)Data, sizeof(str));
+       conn = Client_Conn(To);
+
+       if (Conn_Options(conn) & CONN_RFC1459) {
+               /* RFC 1459 compatibility mode, appended modes are NOT
+                * supported, so strip them off! */
+               ptr = strchr(str, 0x7);
+               if (ptr)
+                       *ptr++ = '\0';
+       }
+
+       IRC_WriteStrClientPrefix(To, Prefix, "JOIN %s", str);
+       if (ptr && *ptr)
+               IRC_WriteStrClientPrefix(To, Prefix, "MODE %s +%s %s", str, ptr,
+                                        Client_ID(Prefix));
+} /* cb_join_forward */
+
+
 static void
 join_forward(CLIENT *Client, CLIENT *target, CHANNEL *chan,
                                        const char *channame)
 {
-       char modes[8];
+       char modes[CHANNEL_MODE_LEN], str[COMMAND_LEN];
 
        strlcpy(&modes[1], Channel_UserModes(chan, target), sizeof(modes) - 1);
-
        if (modes[1])
                modes[0] = 0x7;
        else
                modes[0] = '\0';
-       /* forward to other servers */
-       IRC_WriteStrServersPrefix(Client, target, "JOIN :%s%s", channame, modes);
+
+       /* forward to other servers (if it is not a local channel) */
+       if (!Channel_IsLocal(chan)) {
+               snprintf(str, sizeof(str), "%s%s", channame, modes);
+               IRC_WriteStrServersPrefixFlag_CB(Client, target, '\0',
+                                                cb_join_forward, str);
+       }
 
        /* tell users in this channel about the new client */
-       IRC_WriteStrChannelPrefix(Client, chan, target, false, "JOIN :%s", channame);
-       if (modes[1])
-               IRC_WriteStrChannelPrefix(Client, chan, target, false, "MODE %s +%s %s",
-                                               channame, &modes[1], Client_ID(target));
-}
+       IRC_WriteStrChannelPrefix(Client, chan, target, false,
+                                 "JOIN :%s",  channame);
+
+       /* syncronize channel modes */
+       if (modes[1]) {
+               IRC_WriteStrChannelPrefix(Client, chan, target, false,
+                                         "MODE %s +%s %s", channame,
+                                         &modes[1], Client_ID(target));
+       }
+} /* join_forward */
 
 
 static bool
@@ -177,7 +213,7 @@ join_send_topic(CLIENT *Client, CLIENT *target, CHANNEL *chan,
 GLOBAL bool
 IRC_JOIN( CLIENT *Client, REQUEST *Req )
 {
-       char *channame, *channame_ptr, *key, *key_ptr, *flags;
+       char *channame, *key = NULL, *flags, *lastkey = NULL, *lastchan = NULL;
        CLIENT *target;
        CHANNEL *chan;
 
@@ -203,16 +239,16 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
                return part_from_all_channels(Client, target);
 
        /* Are channel keys given? */
-       if (Req->argc > 1) {
-               key = Req->argv[1];
-               key_ptr = strchr(key, ',');
-               if (key_ptr) *key_ptr = '\0';
-       } else {
-               key = key_ptr = NULL;
-       }
+       if (Req->argc > 1)
+               key = strtok_r(Req->argv[1], ",", &lastkey);
+
        channame = Req->argv[0];
-       channame_ptr = strchr(channame, ',');
-       if (channame_ptr) *channame_ptr = '\0';
+       channame = strtok_r(channame, ",", &lastchan);
+
+       /* Make sure that "channame" is not the empty string ("JOIN :") */
+       if (! channame)
+               return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+                                         Client_ID(Client), Req->command);
 
        while (channame) {
                flags = NULL;
@@ -239,11 +275,19 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
                        if ((Conf_MaxJoins > 0) && (Channel_CountForUser(Client) >= Conf_MaxJoins))
                                return IRC_WriteStrClient(Client, ERR_TOOMANYCHANNELS_MSG,
                                                        Client_ID(Client), channame);
-                       if (!chan) /* New Channel: first user will be channel operator */
-                               flags = "o";
-                       else
+                       if (!chan) {
+                               /*
+                                * New Channel: first user will be channel operator
+                                * unless this is a modeless channel.
+                                */
+                               if (*channame != '+')
+                                       flags = "o";
+                       } else
                                if (!join_allowed(Client, target, chan, channame, key))
                                        break;
+
+                       /* Local client: update idle time */
+                       Conn_UpdateIdle(Client_Conn(Client));
                } else {
                        /* Remote server: we don't need to know whether the
                         * client is invited or not, but we have to make sure
@@ -257,8 +301,14 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
                if (!Channel_Join(target, channame))
                        break;
 
-               if (!chan) /* channel is new; it has been created above */
+               if (!chan) /* channel is new; it has been created above */
                        chan = Channel_Search(channame);
+                       assert(chan != NULL);
+                       if (*channame == '+') { /* modeless channel... */
+                               Channel_ModeAdd(chan, 't'); /* /TOPIC not allowed */
+                               Channel_ModeAdd(chan, 'n'); /* no external msgs */
+                       }
+               }
                assert(chan != NULL);
 
                join_set_channelmodes(chan, target, flags);
@@ -269,18 +319,9 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
                        break; /* write error */
 
                /* next channel? */
-               channame = channame_ptr;
-               if (channame) {
-                       channame++;
-                       channame_ptr = strchr(channame, ',');
-                       if (channame_ptr) *channame_ptr = '\0';
-
-                       if (key_ptr) {
-                               key = ++key_ptr;
-                               key_ptr = strchr(key, ',');
-                               if (key_ptr) *key_ptr = '\0';
-                       }
-               }
+               channame = strtok_r(NULL, ",", &lastchan);
+               if (channame && key)
+                       key = strtok_r(NULL, ",", &lastkey);
        }
        return CONNECTED;
 } /* IRC_JOIN */
@@ -313,11 +354,22 @@ IRC_PART(CLIENT * Client, REQUEST * Req)
 
        /* Loop over all the given channel names */
        chan = strtok(Req->argv[0], ",");
+
+       /* Make sure that "chan" is not the empty string ("PART :") */
+       if (! chan)
+               return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+                                         Client_ID(Client), Req->command);
+
        while (chan) {
                Channel_Part(target, Client, chan,
                             Req->argc > 1 ? Req->argv[1] : Client_ID(target));
                chan = strtok(NULL, ",");
        }
+
+       /* Update idle time, if local client */
+       if (Client_Conn(Client) > NONE)
+               Conn_UpdateIdle(Client_Conn(Client));
+
        return CONNECTED;
 } /* IRC_PART */
 
@@ -333,8 +385,8 @@ IRC_TOPIC( CLIENT *Client, REQUEST *Req )
        assert( Client != NULL );
        assert( Req != NULL );
 
-       /* Falsche Anzahl Parameter? */
-       if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+       if ((Req->argc < 1) || (Req->argc > 2))
+               return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command);
 
        if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
        else from = Client;
@@ -375,16 +427,22 @@ IRC_TOPIC( CLIENT *Client, REQUEST *Req )
 
        /* Set new topic */
        Channel_SetTopic(chan, from, Req->argv[1]);
-       Log(LOG_DEBUG, "User \"%s\" set topic on \"%s\": %s",
-               Client_Mask(from), Channel_Name(chan),
-               Req->argv[1][0] ? Req->argv[1] : "<none>");
-
-       /* im Channel bekannt machen und an Server weiterleiten */
-       IRC_WriteStrServersPrefix( Client, from, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
-       IRC_WriteStrChannelPrefix( Client, chan, from, false, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
-
-       if( Client_Type( Client ) == CLIENT_USER ) return IRC_WriteStrClientPrefix( Client, Client, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
-       else return CONNECTED;
+       LogDebug("%s \"%s\" set topic on \"%s\": %s",
+                Client_TypeText(from), Client_Mask(from), Channel_Name(chan),
+                Req->argv[1][0] ? Req->argv[1] : "<none>");
+
+       /* Update channel and forward new topic to other servers */
+       if (!Channel_IsLocal(chan))
+               IRC_WriteStrServersPrefix(Client, from, "TOPIC %s :%s",
+                                         Req->argv[0], Req->argv[1]);
+       IRC_WriteStrChannelPrefix(Client, chan, from, false, "TOPIC %s :%s",
+                                 Req->argv[0], Req->argv[1]);
+
+       if (Client_Type(Client) == CLIENT_USER)
+               return IRC_WriteStrClientPrefix(Client, Client, "TOPIC %s :%s",
+                                               Req->argv[0], Req->argv[1]);
+       else
+               return CONNECTED;
 } /* IRC_TOPIC */
 
 
@@ -439,7 +497,7 @@ IRC_LIST( CLIENT *Client, REQUEST *Req )
                                        Req->argv[1] );
                }
        }
-       
+
        while( pattern )
        {
                /* Loop through all the channels */
@@ -463,14 +521,14 @@ IRC_LIST( CLIENT *Client, REQUEST *Req )
                        }
                        chan = Channel_Next( chan );
                }
-               
+
                /* Get next name ... */
                if( Req->argc > 0 )
                        pattern = strtok( NULL, "," );
                else
                        pattern = NULL;
        }
-       
+
        return IRC_WriteStrClient( from, RPL_LISTEND_MSG, Client_ID( from ));
 } /* IRC_LIST */
 
@@ -539,7 +597,7 @@ IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
                                }
                                ptr++;
                        }
-                       
+
                        /* Inform members of this channel */
                        IRC_WriteStrChannelPrefix( Client, chan, from, false, "MODE %s +%s%s", Req->argv[0], Channel_Modes( chan ), modes_add );
                }