--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_topic.c
+ * Copyright (C) 1990 Jarkko Oikarinen and
+ * University of Oulu, Computing Center
+ *
+ * See file AUTHORS in IRC package for additional names of
+ * the programmers.
+ *
+ * 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
+ * the Free Software Foundation; either version 1, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ */
+
+#include "config.h"
+
+#include "channel.h"
+#include "client.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_features.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "send.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <stdlib.h> /* for atoi() */
+
+/** Set a channel topic or report an error.
+ * @param[in] sptr Original topic setter.
+ * @param[in] cptr Neighbor that sent the topic message.
+ * @param[in] chptr Channel to set topic on.
+ * @param[in] topic New topic.
+ * @param[in] ts Timestamp that topic was set (0 for current time).
+ */
+static void do_settopic(struct Client *sptr, struct Client *cptr,
+ struct Channel *chptr, char *topic, time_t ts)
+{
+ struct Client *from;
+ int newtopic;
+
+ if (feature_bool(FEAT_HIS_BANWHO) && IsServer(sptr))
+ from = &his;
+ else
+ from = sptr;
+ /* Note if this is just a refresh of an old topic, and don't
+ * send it to all the clients to save bandwidth. We still send
+ * it to other servers as they may have split and lost the topic.
+ */
+ newtopic=ircd_strncmp(chptr->topic,topic,TOPICLEN)!=0;
+ /* setting a topic */
+ ircd_strncpy(chptr->topic, topic, TOPICLEN);
+ ircd_strncpy(chptr->topic_nick, cli_name(from), NICKLEN);
+ chptr->topic_time = ts ? ts : TStime();
+ /* Fixed in 2.10.11: Don't propagate local topics */
+ if (!IsLocalChannel(chptr->chname))
+ sendcmdto_serv_butone(sptr, CMD_TOPIC, cptr, "%H %Tu %Tu :%s", chptr,
+ chptr->creationtime, chptr->topic_time, chptr->topic);
+ if (newtopic)
+ {
+ struct Membership *member;
+
+ /* If the member is delayed-join, show them. */
+ member = find_channel_member(sptr, chptr);
+ if (member && IsDelayedJoin(member))
+ RevealDelayedJoin(member);
+
+ sendcmdto_channel_butserv_butone(from, CMD_TOPIC, chptr, NULL, 0,
+ "%H :%s", chptr, chptr->topic);
+ }
+ /* if this is the same topic as before we send it to the person that
+ * set it (so they knew it went through ok), but don't bother sending
+ * it to everyone else on the channel to save bandwidth
+ */
+ else if (MyUser(sptr))
+ sendcmdto_one(sptr, CMD_TOPIC, sptr, "%H :%s", chptr, chptr->topic);
+}
+
+/** Handle a local user's attempt to get or set a channel topic.
+ *
+ * \a parv has the following elements:
+ * \li \a parv[1] is the channel name
+ * \li \a parv[\a parc - 1] is the topic (if \a parc > 2)
+ *
+ * See @ref m_functions for discussion of the arguments.
+ * @param[in] cptr Client that sent us the message.
+ * @param[in] sptr Original source of message.
+ * @param[in] parc Number of arguments.
+ * @param[in] parv Argument vector.
+ */
+int m_topic(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct Channel *chptr;
+ char *topic = 0, *name, *p = 0;
+
+ if (parc < 2)
+ return need_more_params(sptr, "TOPIC");
+
+ if (parc > 2)
+ topic = parv[parc - 1];
+
+ for (; (name = ircd_strtok(&p, parv[1], ",")); parv[1] = 0)
+ {
+ chptr = 0;
+ /* Does the channel exist */
+ if (!IsChannelName(name) || !(chptr = FindChannel(name)))
+ {
+ send_reply(sptr,ERR_NOSUCHCHANNEL,name);
+ continue;
+ }
+ /* Trying to check a topic outside a secret channel */
+ if ((topic || SecretChannel(chptr)) && !find_channel_member(sptr, chptr))
+ {
+ send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
+ continue;
+ }
+
+ /* only asking for topic */
+ if (!topic)
+ {
+ if (chptr->topic[0] == '\0')
+ send_reply(sptr, RPL_NOTOPIC, chptr->chname);
+ else
+ {
+ send_reply(sptr, RPL_TOPIC, chptr->chname, chptr->topic);
+ send_reply(sptr, RPL_TOPICWHOTIME, chptr->chname, chptr->topic_nick,
+ chptr->topic_time);
+ }
+ }
+ else if ((chptr->mode.mode & MODE_TOPICLIMIT) && !is_chan_op(sptr, chptr))
+ send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
+ else if (!client_can_send_to_channel(sptr, chptr, 1))
+ send_reply(sptr, ERR_CANNOTSENDTOCHAN, chptr->chname);
+ else
+ do_settopic(sptr,cptr,chptr,topic,0);
+ }
+ return 0;
+}
+
+/** Handle a remote user's attempt to set a channel topic.
+ * \a parv has the following elements:
+ * \li \a parv[1] is the channel name
+ * \li \a parv[2] is the channel creation timestamp (optional)
+ * \li \a parv[2] is the topic's timestamp (optional)
+ * \li \a parv[\a parc - 1] is the topic
+ *
+ * See @ref m_functions for discussion of the arguments.
+ * @param[in] cptr Client that sent us the message.
+ * @param[in] sptr Original source of message.
+ * @param[in] parc Number of arguments.
+ * @param[in] parv Argument vector.
+ */
+int ms_topic(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct Channel *chptr;
+ char *topic = 0, *name, *p = 0;
+ time_t ts = 0;
+
+ if (parc < 3)
+ return need_more_params(sptr, "TOPIC");
+
+ topic = parv[parc - 1];
+
+ for (; (name = ircd_strtok(&p, parv[1], ",")); parv[1] = 0)
+ {
+ chptr = 0;
+ /* Does the channel exist */
+ if (!IsChannelName(name) || !(chptr = FindChannel(name)))
+ {
+ send_reply(sptr,ERR_NOSUCHCHANNEL,name);
+ continue;
+ }
+
+ /* Ignore requests for topics from remote servers */
+ if (IsLocalChannel(name) && !MyUser(sptr))
+ {
+ protocol_violation(sptr,"Topic request");
+ continue;
+ }
+
+ /* If existing channel is older or has newer topic, ignore */
+ if (parc > 3 && (ts = atoi(parv[2])) && chptr->creationtime < ts)
+ continue;
+
+ ts = 0; /* Default to the current time if no topic_time is passed. */
+ if (parc > 4 && (ts = atoi(parv[3])) && chptr->topic_time > ts)
+ continue;
+
+ do_settopic(sptr,cptr,chptr,topic, ts);
+ }
+ return 0;
+}
projects / ircu2.10.12-pk.git / blobdiff