* $Id$
*/
-/*
- * m_functions execute protocol messages on this server:
- *
- * cptr is always NON-NULL, pointing to a *LOCAL* client
- * structure (with an open socket connected!). This
- * identifies the physical socket where the message
- * originated (or which caused the m_function to be
- * executed--some m_functions may call others...).
- *
- * sptr is the source of the message, defined by the
- * prefix part of the message if present. If not
- * or prefix not found, then sptr==cptr.
- *
- * (!IsServer(cptr)) => (cptr == sptr), because
- * prefixes are taken *only* from servers...
- *
- * (IsServer(cptr))
- * (sptr == cptr) => the message didn't
- * have the prefix.
- *
- * (sptr != cptr && IsServer(sptr) means
- * the prefix specified servername. (?)
- *
- * (sptr != cptr && !IsServer(sptr) means
- * that message originated from a remote
- * user (not local).
- *
- * combining
- *
- * (!IsServer(sptr)) means that, sptr can safely
- * taken as defining the target structure of the
- * message in this server.
- *
- * *Always* true (if 'parse' and others are working correct):
- *
- * 1) sptr->from == cptr (note: cptr->from == cptr)
- *
- * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
- * *cannot* be a local connection, unless it's
- * actually cptr!). [MyConnect(x) should probably
- * be defined as (x == x->from) --msa ]
- *
- * parc number of variable parameter strings (if zero,
- * parv is allowed to be NULL)
- *
- * parv a NULL terminated list of parameter pointers,
- *
- * parv[0], sender (prefix string), if not present
- * this points to an empty string.
- * parv[1]...parv[parc-1]
- * pointers to additional parameters
- * parv[parc] == NULL, *always*
- *
- * note: it is guaranteed that parv[0]..parv[parc-1] are all
- * non-NULL pointers.
- */
#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 "numnicks.h"
#include "send.h"
-#include <assert.h>
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <stdlib.h> /* for atoi() */
-static void do_settopic(struct Client *sptr, struct Client *cptr,
- struct Channel *chptr,char *topic)
+/** 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 +n and not @'d, return an error and ignore the topic */
- if ((chptr->mode.mode & MODE_TOPICLIMIT) != 0 && !is_chan_op(sptr, chptr))
- {
- send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
- return;
- }
+
+ 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(sptr), NICKLEN);
- chptr->topic_time = CurrentTime;
- /* Fixed in 2.10.11: Don't propergate local topics */
+ 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 :%s", chptr,
- chptr->topic);
+ sendcmdto_serv_butone(sptr, CMD_TOPIC, cptr, "%H %Tu %Tu :%s", chptr,
+ chptr->creationtime, chptr->topic_time, chptr->topic);
if (newtopic)
- sendcmdto_channel_butserv(sptr, CMD_TOPIC, chptr, "%H :%s", chptr,
- chptr->topic);
+ {
+ 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);
+ sendcmdto_one(sptr, CMD_TOPIC, sptr, "%H :%s", chptr, chptr->topic);
}
-/*
- * m_topic - generic message handler
+/** 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)
*
- * parv[0] = sender prefix
- * parv[1] = channel
- * parv[parc - 1] = topic (if 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[])
{
send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
continue;
}
- /* Modeless Channels don't have topics */
- if (IsModelessChannel(name))
- {
- send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
- continue;
- }
- if (!topic) /* only asking for topic */
+ /* only asking for topic */
+ if (!topic)
{
if (chptr->topic[0] == '\0')
send_reply(sptr, RPL_NOTOPIC, chptr->chname);
chptr->topic_time);
}
}
- else
- do_settopic(sptr,cptr,chptr,topic);
+ 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;
}
-/*
- * ms_topic - generic message handler
- *
- * parv[0] = sender prefix
- * parv[1] = channel
- * parv[parc - 1] = topic
+/** 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");
send_reply(sptr,ERR_NOSUCHCHANNEL,name);
continue;
}
- /* Modeless Channels don't have topics */
- if (IsModelessChannel(name))
- {
- protocol_violation(sptr,"Attempted to topic modeless channel");
- send_reply(sptr, ERR_CHANOPRIVSNEEDED, chptr->chname);
- continue;
- }
/* Ignore requests for topics from remote servers */
if (IsLocalChannel(name) && !MyUser(sptr))
continue;
}
- do_settopic(sptr,cptr,chptr,topic);
+ /* If existing channel is older or has newer topic, ignore */
+ if (parc > 3 && (ts = atoi(parv[2])) && chptr->creationtime < ts)
+ continue;
+
+ 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