keep in sync with OGN upstream (SVN-317)

[ircu2.10.12-pk.git] / ircd / m_join.c

diff --git a/ircd/m_join.c b/ircd/m_join.c
index 0dc5ecf0d311d1a85a77856c7764f270c0d46ec0..66c4379650c267d1f448eb66f9d49e1c835db6c5 100644 (file)
--- a/ircd/m_join.c
+++ b/ircd/m_join.c
@@ -157,7 +157,9 @@ int m_join(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
       send_reply(sptr, ERR_TOOMANYCHANNELS, name);
       break; /* no point processing the other channels */
     }
-
+    
+       int flags = 0;
+       
     /* BADCHANed channel */
     if ((gline = gline_find(name, GLINE_BADCHAN)) &&
        GlineIsActive(gline) && !IsAnOper(sptr)) {
@@ -192,7 +194,7 @@ int m_join(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
     } else if (check_target_limit(sptr, chptr, chptr->chname, 0)) {
       continue;
     } else {
-      int flags = CHFL_DEOPPED;
+      flags = CHFL_DEOPPED;
       int err = 0;
       int override = 0;
 
@@ -278,35 +280,64 @@ int m_join(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
            char *altchan = chptr->mode.altchan;
                
                if (!(chptrb = FindChannel(altchan))) {
-         if (((altchan[0] == '&') && !feature_bool(FEAT_LOCAL_CHANNELS)) || strlen(altchan) > IRCD_MIN(CHANNELLEN, feature_int(FEAT_CHANNELLEN))) {
-          //we don't send an error message here - that would be very strange for the user, because they normaly don't know that mode +F is set
-         } else if ((chptrb = get_channel(sptr, altchan, CGT_CREATE))) {
-           joinbuf_join(&create, chptrb, CHFL_CHANOP | CHFL_CHANNEL_MANAGER);
-                  do_names(sptr, chptrb, NAMES_ALL|NAMES_EON);
-                }
+          if (((altchan[0] == '&') && !feature_bool(FEAT_LOCAL_CHANNELS)) || strlen(altchan) > IRCD_MIN(CHANNELLEN, feature_int(FEAT_CHANNELLEN))) {
+            //we don't send an error message here - that would be very strange for the user, because they normaly don't know that mode +F is set
+          } else if ((chptrb = get_channel(sptr, altchan, CGT_CREATE))) {
+            joinbuf_join(&create, chptrb, CHFL_CHANOP | CHFL_CHANNEL_MANAGER);
+                   do_names(sptr, chptrb, NAMES_ALL|NAMES_EON);
+                 }
                } else {
-                joinbuf_join(&join, chptrb, flags);
-                del_invite(sptr, chptrb);
-         if (chptrb->topic[0]) {
-          send_reply(sptr, RPL_TOPIC, chptrb->chname, chptrb->topic);
-          send_reply(sptr, RPL_TOPICWHOTIME, chptrb->chname, chptrb->topic_nick, chptrb->topic_time);
-         }
-         do_names(sptr, chptrb, NAMES_ALL|NAMES_EON); /* send /names list */
-               }
+          if(find_member_link(chptrb, sptr))
+            continue; //we have already joined this channel
+                 //first of all check if we may even join this channel
+                 int err2 = 0;
+                 if (chptrb->users == 0 && !chptrb->mode.apass[0] && !(chptrb->mode.mode & MODE_PERSIST)) {
+            /* Joining a zombie channel (zannel): give ops and increment TS. */
+            flags = CHFL_CHANOP;
+            chptrb->creationtime++;
+          } else if (IsInvited(sptr, chptrb)) {
+             /* Invites and key=OVERRIDE bypass these other checks. */
+          } else if (chptrb->mode.mode & MODE_INVITEONLY)
+            err2 = ERR_INVITEONLYCHAN;
+          else if (chptrb->mode.limit && (chptrb->users >= chptrb->mode.limit))
+            err2 = ERR_CHANNELISFULL;
+          else if ((chptrb->mode.mode & MODE_REGONLY) && !IsAccount(sptr))
+            err2 = ERR_NEEDREGGEDNICK;
+          else if (find_ban(sptr, chptrb->banlist))
+            err2 = ERR_BANNEDFROMCHAN;
+          else if (*chptrb->mode.key && (!key || strcmp(key, chptrb->mode.key)))
+            err2 = ERR_BADCHANNELKEY;
+                 if(!err2) {
+                   joinbuf_join(&join, chptrb, flags);
+                   del_invite(sptr, chptrb);
+            if (chptrb->topic[0]) {
+              send_reply(sptr, RPL_TOPIC, chptrb->chname, chptrb->topic);
+              send_reply(sptr, RPL_TOPICWHOTIME, chptrb->chname, chptrb->topic_nick, chptrb->topic_time);
+            }
+            do_names(sptr, chptrb, NAMES_ALL|NAMES_EON|(((chptrb->mode.mode & MODE_AUDITORIUM) && !(flags & CHFL_CHANOP)) ? NAMES_OPS : 0)); /* send /names list */
+                 }
+           }
          }
          
       if (err) {
-        switch(err) {
-          case ERR_NEEDREGGEDNICK:
-            send_reply(sptr, 
-                       ERR_NEEDREGGEDNICK, 
-                       chptr->chname, 
-                       feature_str(FEAT_URLREG));            
-            break;
-          default:
+        const char *error = NULL;
+        if (err == ERR_CHANNELISFULL)
+            error = feature_str(FEAT_ERR_CHANNELISFULL);
+        else if (err == ERR_INVITEONLYCHAN)
+            error = feature_str(FEAT_ERR_INVITEONLYCHAN);
+        else if (err == ERR_BANNEDFROMCHAN)
+            error = feature_str(FEAT_ERR_BANNEDFROMCHAN);
+        else if (err == ERR_BADCHANNELKEY)
+            error = feature_str(FEAT_ERR_BADCHANNELKEY);
+        else if (err == ERR_NEEDREGGEDNICK)
+            error = feature_str(FEAT_ERR_NEEDREGGEDNICK);
+        else if (err == ERR_JOINACCESS)
+            error = feature_str(FEAT_ERR_JOINACCESS);
+        
+        if (error)
+            send_reply(sptr, err, chptr->chname, error);
+        else
             send_reply(sptr, err, chptr->chname);
-            break;
-        }
         continue;
       }
          
@@ -334,7 +365,7 @@ int m_join(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
                 chptr->topic_time);
     }
 
-    do_names(sptr, chptr, NAMES_ALL|NAMES_EON); /* send /names list */
+    do_names(sptr, chptr, NAMES_ALL|NAMES_EON|(((chptr->mode.mode & MODE_AUDITORIUM) && !(flags & CHFL_CHANOP)) ? NAMES_OPS : 0)); /* send /names list */
   }
 
   joinbuf_flush(&join); /* must be first, if there's a JOIN 0 */