IRC_JOIN cleanups.
- put sending of mode and forwarding of JOIN to other clients into seperate function. - put sending of topic/channel names into seperate function. - put access check into seperate function. - translate/remove remaining german comments. - stop if JOIN to a channel in a list (JOIN #a,#,b,#c...) fails (This doesn't change the behaviour: skip-to-next-channel-on-error did never work as intended)
This commit is contained in:
Florian Westphal
parent
4d152b771e
commit
634ef8c131
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@ -14,7 +14,7 @@
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#include "portab.h"
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static char UNUSED id[] = "$Id: irc-channel.c,v 1.43 2008/02/05 19:00:52 fw Exp $";
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static char UNUSED id[] = "$Id: irc-channel.c,v 1.44 2008/02/16 11:21:33 fw Exp $";
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#include "imp.h"
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#include <assert.h>
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@ -63,11 +63,121 @@ part_from_all_channels(CLIENT* client, CLIENT *target)
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}
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static bool
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join_allowed(CLIENT *Client, CLIENT *target, CHANNEL *chan,
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const char *channame, const char *key)
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{
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bool is_invited, is_banned;
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const char *channel_modes;
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is_banned = Lists_Check(Channel_GetListBans(chan), target);
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is_invited = Lists_Check(Channel_GetListInvites(chan), target);
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if (is_banned && !is_invited) {
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IRC_WriteStrClient(Client, ERR_BANNEDFROMCHAN_MSG, Client_ID(Client), channame);
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return false;
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}
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channel_modes = Channel_Modes(chan);
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if ((strchr(channel_modes, 'i')) && !is_invited) {
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/* Channel is "invite-only" (and Client wasn't invited) */
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IRC_WriteStrClient(Client, ERR_INVITEONLYCHAN_MSG, Client_ID(Client), channame);
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return false;
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}
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/* Is the channel protected by a key? */
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if (strchr(channel_modes, 'k') &&
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strcmp(Channel_Key(chan), key ? key : ""))
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{
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IRC_WriteStrClient(Client, ERR_BADCHANNELKEY_MSG, Client_ID(Client), channame);
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return false;
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}
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/* Are there already too many members? */
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if ((strchr(channel_modes, 'l')) && (Channel_MaxUsers(chan) <= Channel_MemberCount(chan))) {
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IRC_WriteStrClient(Client, ERR_CHANNELISFULL_MSG, Client_ID(Client), channame);
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return false;
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}
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return true;
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}
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static void
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join_set_channelmodes(CHANNEL *chan, CLIENT *target, const char *flags)
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{
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if (flags) {
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while (*flags) {
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Channel_UserModeAdd(chan, target, *flags);
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flags++;
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}
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}
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/* If channel persistent and client is ircop: make client chanop */
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if (strchr(Channel_Modes(chan), 'P') && strchr(Client_Modes(target), 'o'))
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Channel_UserModeAdd(chan, target, 'o');
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}
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static void
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join_forward(CLIENT *Client, CLIENT *target, CHANNEL *chan,
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const char *channame)
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{
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char modes[8];
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strlcpy(&modes[1], Channel_UserModes(chan, target), sizeof(modes) - 1);
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if (modes[1])
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modes[0] = 0x7;
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else
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modes[0] = '\0';
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/* forward to other servers */
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IRC_WriteStrServersPrefix(Client, target, "JOIN :%s%s", channame, modes);
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/* tell users in this channel about the new client */
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IRC_WriteStrChannelPrefix(Client, chan, target, false, "JOIN :%s", channame);
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if (modes[1])
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IRC_WriteStrChannelPrefix(Client, chan, target, false, "MODE %s +%s %s",
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channame, &modes[1], Client_ID(target));
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}
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static bool
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join_send_topic(CLIENT *Client, CLIENT *target, CHANNEL *chan,
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const char *channame)
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{
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const char *topic;
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if (Client_Type(Client) != CLIENT_USER)
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return true;
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/* acknowledge join */
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if (!IRC_WriteStrClientPrefix(Client, target, "JOIN :%s", channame))
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return false;
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/* Send topic to client, if any */
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topic = Channel_Topic(chan);
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assert(topic != NULL);
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if (*topic) {
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if (!IRC_WriteStrClient(Client, RPL_TOPIC_MSG,
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Client_ID(Client), channame, topic))
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return false;
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#ifndef STRICT_RFC
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if (!IRC_WriteStrClient(Client, RPL_TOPICSETBY_MSG,
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Client_ID(Client), channame,
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Channel_TopicWho(chan),
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Channel_TopicTime(chan)))
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return false;
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#endif
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}
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/* send list of channel members to client */
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if (!IRC_Send_NAMES(Client, chan))
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return false;
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return IRC_WriteStrClient(Client, RPL_ENDOFNAMES_MSG, Client_ID(Client), Channel_Name(chan));
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}
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GLOBAL bool
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IRC_JOIN( CLIENT *Client, REQUEST *Req )
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{
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char *channame, *channame_ptr, *key, *key_ptr, *flags, *topic, modes[8];
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bool is_new_chan, is_invited, is_banned;
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char *channame, *channame_ptr, *key, *key_ptr, *flags;
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CLIENT *target;
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CHANNEL *chan;
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@ -80,9 +190,13 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
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Client_ID(Client), Req->command);
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/* Who is the sender? */
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if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
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else target = Client;
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if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
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if (Client_Type(Client) == CLIENT_SERVER)
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target = Client_Search(Req->prefix);
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else
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target = Client;
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if (!target)
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return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix);
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/* Is argument "0"? */
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if (Req->argc == 1 && !strncmp("0", Req->argv[0], 2))
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@ -93,181 +207,66 @@ IRC_JOIN( CLIENT *Client, REQUEST *Req )
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key = Req->argv[1];
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key_ptr = strchr(key, ',');
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if (key_ptr) *key_ptr = '\0';
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}
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else
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} else {
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key = key_ptr = NULL;
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}
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channame = Req->argv[0];
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channame_ptr = strchr(channame, ',');
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if (channame_ptr) *channame_ptr = '\0';
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/* Channel-Namen durchgehen */
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while (channame)
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{
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chan = NULL; flags = NULL;
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while (channame) {
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flags = NULL;
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/* wird der Channel neu angelegt? */
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if( Channel_Search( channame )) {
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is_new_chan = false;
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} else {
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if (Conf_PredefChannelsOnly) { /* this server does not allow creation of channels */
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chan = Channel_Search(channame);
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if (!chan && Conf_PredefChannelsOnly) {
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/* channel must be created, but server does not allow this */
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IRC_WriteStrClient(Client, ERR_BANNEDFROMCHAN_MSG, Client_ID(Client), channame);
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/* Try next name, if any */
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channame = strchr(channame, ',');
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continue;
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}
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is_new_chan = true;
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break;
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}
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/* Hat ein Server Channel-User-Modes uebergeben? */
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if( Client_Type( Client ) == CLIENT_SERVER )
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{
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/* Channel-Flags extrahieren */
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/* Did the server include channel-user-modes? */
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if (Client_Type(Client) == CLIENT_SERVER) {
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flags = strchr(channame, 0x7);
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if( flags )
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{
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if (flags) {
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*flags = '\0';
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flags++;
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}
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}
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/* Local client? */
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if( Client_Type( Client ) == CLIENT_USER )
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{
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if (Client_Type(Client) == CLIENT_USER) {
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/* Test if the user has reached his maximum channel count */
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if ((Conf_MaxJoins > 0) && (Channel_CountForUser(Client) >= Conf_MaxJoins))
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return IRC_WriteStrClient(Client, ERR_TOOMANYCHANNELS_MSG,
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Client_ID(Client), channame);
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/* Existiert der Channel bereits, oder wird er im Moment neu erzeugt? */
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if( is_new_chan )
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{
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/* Erster User im Channel: Operator-Flag setzen */
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if (!chan) /* New Channel: first user will be channel operator */
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flags = "o";
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}
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else
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{
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/* Existierenden Channel suchen */
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chan = Channel_Search( channame );
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assert( chan != NULL );
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is_banned = Lists_Check(Channel_GetListBans(chan), target );
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is_invited = Lists_Check(Channel_GetListInvites(chan), target );
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/* Testen, ob Client gebanned ist */
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if(( is_banned == true) && ( is_invited == false ))
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{
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/* Client ist gebanned (und nicht invited): */
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IRC_WriteStrClient( Client, ERR_BANNEDFROMCHAN_MSG, Client_ID( Client ), channame );
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/* Try next name, if any */
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channame = strchr(channame, ',');
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continue;
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}
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/* Ist der Channel "invite-only"? */
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if(( strchr( Channel_Modes( chan ), 'i' )) && ( is_invited == false ))
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{
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/* Channel ist "invite-only" und Client wurde nicht invited: */
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IRC_WriteStrClient( Client, ERR_INVITEONLYCHAN_MSG, Client_ID( Client ), channame );
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/* Try next name, if any */
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channame = strchr(channame, ',');
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continue;
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}
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/* Is the channel protected by a key? */
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if(( strchr( Channel_Modes( chan ), 'k' )) && ( strcmp( Channel_Key( chan ), key ? key : "" ) != 0 ))
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{
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/* Bad channel key! */
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IRC_WriteStrClient( Client, ERR_BADCHANNELKEY_MSG, Client_ID( Client ), channame );
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/* Try next name, if any */
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channame = strchr(channame, ',');
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continue;
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}
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/* Are there already too many members? */
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if(( strchr( Channel_Modes( chan ), 'l' )) && ( Channel_MaxUsers( chan ) <= Channel_MemberCount( chan )))
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{
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/* Bad channel key! */
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IRC_WriteStrClient( Client, ERR_CHANNELISFULL_MSG, Client_ID( Client ), channame );
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/* Try next name, if any */
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channame = strchr(channame, ',');
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continue;
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}
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}
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}
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else
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{
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if (!join_allowed(Client, target, chan, channame, key))
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break;
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} else {
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/* Remote server: we don't need to know whether the
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* client is invited or not, but we have to make sure
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* that the "one shot" entries (generated by INVITE
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* commands) in this list become deleted when a user
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* joins a channel this way. */
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chan = Channel_Search( channame );
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if( chan != NULL ) (void)Lists_Check(Channel_GetListInvites(chan), target);
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if (chan) (void)Lists_Check(Channel_GetListInvites(chan), target);
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}
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/* Channel joinen (und ggf. anlegen) */
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/* Join channel (and create channel if it doesn't exist) */
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if (!Channel_Join(target, channame))
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{
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/* naechsten Namen ermitteln */
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channame = strchr(channame, ',');
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continue;
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}
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if( ! chan ) chan = Channel_Search( channame );
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break;
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if (!chan) /* channel is new; it has been created above */
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chan = Channel_Search(channame);
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assert(chan != NULL);
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/* Modes setzen (wenn vorhanden) */
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while( flags && *flags )
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{
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Channel_UserModeAdd( chan, target, *flags );
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flags++;
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}
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join_set_channelmodes(chan, target, flags);
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/* Wenn persistenter Channel und IRC-Operator: zum Channel-OP machen */
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if(( strchr( Channel_Modes( chan ), 'P' )) && ( strchr( Client_Modes( target ), 'o' ))) Channel_UserModeAdd( chan, target, 'o' );
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join_forward(Client, target, chan, channame);
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/* Muessen Modes an andere Server gemeldet werden? */
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strlcpy( &modes[1], Channel_UserModes( chan, target ), sizeof( modes ) - 1 );
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if( modes[1] ) modes[0] = 0x7;
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else modes[0] = '\0';
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/* An andere Server weiterleiten */
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IRC_WriteStrServersPrefix( Client, target, "JOIN :%s%s", channame, modes );
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/* im Channel bekannt machen */
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IRC_WriteStrChannelPrefix( Client, chan, target, false, "JOIN :%s", channame );
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if( modes[1] )
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{
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/* Modes im Channel bekannt machen */
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IRC_WriteStrChannelPrefix( Client, chan, target, false, "MODE %s +%s %s", channame, &modes[1], Client_ID( target ));
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}
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if( Client_Type( Client ) == CLIENT_USER )
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{
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/* an Client bestaetigen */
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IRC_WriteStrClientPrefix( Client, target, "JOIN :%s", channame );
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/* Send topic to client, if any */
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topic = Channel_Topic(chan);
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if (*topic) {
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IRC_WriteStrClient(Client, RPL_TOPIC_MSG,
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Client_ID(Client), channame, topic);
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#ifndef STRICT_RFC
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IRC_WriteStrClient(Client, RPL_TOPICSETBY_MSG,
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Client_ID(Client), channame,
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Channel_TopicWho(chan),
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Channel_TopicTime(chan));
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#endif
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}
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/* Mitglieder an Client Melden */
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IRC_Send_NAMES( Client, chan );
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IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), Channel_Name( chan ));
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}
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if (!join_send_topic(Client, target, chan, channame))
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break; /* write error */
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/* next channel? */
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channame = channame_ptr;
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