/**
* Handler for the IRC "PART" command.
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_PART(CLIENT * Client, REQUEST * Req)
{
CLIENT *target;
char *chan;
assert(Client != NULL);
assert(Req != NULL);
_IRC_GET_SENDER_OR_RETURN_(target, Req, Client)
/* 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_WriteErrClient(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 */
/**
* Handler for the IRC command "KICK".
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_KICK(CLIENT *Client, REQUEST *Req)
{
CLIENT *from;
char *itemList = Req->argv[0];
const char* currentNick, *currentChannel, *reason;
unsigned int channelCount = 1;
unsigned int nickCount = 1;
assert( Client != NULL );
assert( Req != NULL );
_IRC_ARGC_BETWEEN_OR_RETURN_(Client, Req, 2, 3)
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
while (*itemList) {
if (*itemList == ',') {
*itemList = '\0';
channelCount++;
}
itemList++;
}
itemList = Req->argv[1];
while (*itemList) {
if (*itemList == ',') {
*itemList = '\0';
nickCount++;
}
itemList++;
}
reason = Req->argc == 3 ? Req->argv[2] : Client_ID(from);
currentNick = Req->argv[1];
currentChannel = Req->argv[0];
if (channelCount == 1) {
while (nickCount > 0) {
if (!try_kick(Client, from, currentNick,
currentChannel, reason))
return false;
while (*currentNick)
currentNick++;
currentNick++;
nickCount--;
}
} else if (channelCount == nickCount) {
while (nickCount > 0) {
if (!try_kick(Client, from, currentNick,
currentChannel, reason))
return false;
while (*currentNick)
currentNick++;
while (*currentChannel)
currentChannel++;
currentNick++;
currentChannel++;
nickCount--;
}
} else {
return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
Client_ID(Client), Req->command);
}
return true;
} /* IRC_KICK */
/**
* Handler for the IRC command "INVITE".
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_INVITE(CLIENT *Client, REQUEST *Req)
{
CHANNEL *chan;
CLIENT *target, *from;
const char *colon_if_necessary;
bool remember = false;
assert( Client != NULL );
assert( Req != NULL );
_IRC_ARGC_EQ_OR_RETURN_(Client, Req, 2)
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
/* Search user */
target = Client_Search(Req->argv[0]);
if (!target || (Client_Type(target) != CLIENT_USER))
return IRC_WriteStrClient(from, ERR_NOSUCHNICK_MSG,
Client_ID(Client), Req->argv[0]);
chan = Channel_Search(Req->argv[1]);
if (chan) {
/* Channel exists. Is the user a valid member of the channel? */
if (!Channel_IsMemberOf(chan, from))
return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG, Client_ID(Client), Req->argv[1]);
/* Is the channel "invite-disallow"? */
if (strchr(Channel_Modes(chan), 'V'))
return IRC_WriteStrClient(from, ERR_NOINVITE_MSG,
Client_ID(from), Channel_Name(chan));
/* Is the channel "invite-only"? */
if (strchr(Channel_Modes(chan), 'i')) {
/* Yes. The user must be channel owner/admin/operator/halfop! */
if (!strchr(Channel_UserModes(chan, from), 'q') &&
!strchr(Channel_UserModes(chan, from), 'a') &&
!strchr(Channel_UserModes(chan, from), 'o') &&
!strchr(Channel_UserModes(chan, from), 'h'))
return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(from), Channel_Name(chan));
remember = true;
}
/* Is the target user already member of the channel? */
if (Channel_IsMemberOf(chan, target))
return IRC_WriteStrClient(from, ERR_USERONCHANNEL_MSG,
Client_ID(from), Req->argv[0], Req->argv[1]);
/* If the target user is banned on that channel: remember invite */
if (Lists_Check(Channel_GetListBans(chan), target))
remember = true;
if (remember) {
/* We must remember this invite */
if (!Channel_AddInvite(chan, Client_Mask(target), true))
return CONNECTED;
}
}
LogDebug("User \"%s\" invites \"%s\" to \"%s\" ...", Client_Mask(from),
Req->argv[0], Req->argv[1]);
/*
* RFC 2812 says:
* 'There is no requirement that the channel [..] must exist or be a valid channel'
* The problem with this is that this allows the "channel" to contain spaces,
* in which case we must prefix its name with a colon to make it clear that
* it is only a single argument.
*/
colon_if_necessary = strchr(Req->argv[1], ' ') ? ":":"";
/* Inform target client */
IRC_WriteStrClientPrefix(target, from, "INVITE %s %s%s", Req->argv[0],
colon_if_necessary, Req->argv[1]);
if (Client_Conn(target) > NONE) {
/* The target user is local, so we have to send the status code */
if (!IRC_WriteStrClientPrefix(from, target, RPL_INVITING_MSG,
Client_ID(from), Req->argv[0], colon_if_necessary, Req->argv[1]))
return DISCONNECTED;
if (strchr(Client_Modes(target), 'a') &&
!IRC_WriteStrClient(from, RPL_AWAY_MSG, Client_ID(from),
Client_ID(target), Client_Away(target)))
return DISCONNECTED;
}
return CONNECTED;
} /* IRC_INVITE */
/*
* Handler for the IRC "TRACE" command.
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_TRACE(CLIENT *Client, REQUEST *Req)
{
CLIENT *from, *target, *c;
CONN_ID idx, idx2;
char user[CLIENT_USER_LEN];
assert(Client != NULL);
assert(Req != NULL);
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
_IRC_GET_TARGET_SERVER_OR_RETURN_(target, Req, 0, from)
/* Forward command to other server? */
if (target != Client_ThisServer()) {
/* Send RPL_TRACELINK back to initiator */
idx = Client_Conn(Client);
assert(idx > NONE);
idx2 = Client_Conn(Client_NextHop(target));
assert(idx2 > NONE);
if (!IRC_WriteStrClient(from, RPL_TRACELINK_MSG,
Client_ID(from), PACKAGE_NAME,
PACKAGE_VERSION, Client_ID(target),
Client_ID(Client_NextHop(target)),
Option_String(idx2),
(long)(time(NULL) - Conn_StartTime(idx2)),
Conn_SendQ(idx), Conn_SendQ(idx2)))
return DISCONNECTED;
/* Forward command */
IRC_WriteStrClientPrefix(target, from, "TRACE %s", Req->argv[0]);
return CONNECTED;
}
/* Infos about all connected servers */
c = Client_First();
while (c) {
if (Client_Conn(c) > NONE) {
/* Local client */
if (Client_Type(c) == CLIENT_SERVER) {
/* Server link */
strlcpy(user, Client_User(c), sizeof(user));
if (user[0] == '~')
strlcpy(user, "unknown", sizeof(user));
if (!IRC_WriteStrClient(from,
RPL_TRACESERVER_MSG,
Client_ID(from), Client_ID(c),
user, Client_Hostname(c),
Client_Mask(Client_ThisServer()),
Option_String(Client_Conn(c))))
return DISCONNECTED;
}
if (Client_Type(c) == CLIENT_USER
&& Client_HasMode(c, 'o')) {
/* IRC Operator */
if (!IRC_WriteStrClient(from,
RPL_TRACEOPERATOR_MSG,
Client_ID(from), Client_ID(c)))
return DISCONNECTED;
}
}
c = Client_Next( c );
}
return IRC_WriteStrClient(from, RPL_TRACEEND_MSG, Client_ID(from),
Conf_ServerName, PACKAGE_NAME,
PACKAGE_VERSION, NGIRCd_DebugLevel);
} /* IRC_TRACE */
/**
* Handler for the IRC+ "CHANINFO" command.
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
{
char modes_add[COMMAND_LEN], l[16];
CLIENT *from;
CHANNEL *chan;
int arg_topic;
assert( Client != NULL );
assert( Req != NULL );
/* Bad number of parameters? */
if (Req->argc < 2 || Req->argc == 4 || Req->argc > 5)
return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
Client_ID(Client), Req->command);
/* Compatibility kludge */
if (Req->argc == 5)
arg_topic = 4;
else if(Req->argc == 3)
arg_topic = 2;
else
arg_topic = -1;
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
/* Search or create channel */
chan = Channel_Search( Req->argv[0] );
if (!chan)
chan = Channel_Create( Req->argv[0] );
if (!chan)
return CONNECTED;
if (Req->argv[1][0] == '+') {
if (!*Channel_Modes(chan)) {
/* OK, this channel doesn't have modes yet,
* set the received ones: */
Channel_SetModes(chan, &Req->argv[1][1]);
if(Req->argc == 5) {
if(Channel_HasMode(chan, 'k'))
Channel_SetKey(chan, Req->argv[2]);
if(Channel_HasMode(chan, 'l'))
Channel_SetMaxUsers(chan, atol(Req->argv[3]));
} else {
/* Delete modes which we never want to inherit */
Channel_ModeDel(chan, 'l');
Channel_ModeDel(chan, 'k');
}
strcpy(modes_add, "");
if (Channel_HasMode(chan, 'l')) {
snprintf(l, sizeof(l), " %lu",
Channel_MaxUsers(chan));
strlcat(modes_add, l, sizeof(modes_add));
}
if (Channel_HasMode(chan, 'k')) {
strlcat(modes_add, " ", sizeof(modes_add));
strlcat(modes_add, Channel_Key(chan),
sizeof(modes_add));
}
/* Inform members of this channel */
IRC_WriteStrChannelPrefix(Client, chan, from, false,
"MODE %s +%s%s", Req->argv[0],
Channel_Modes(chan), modes_add);
}
}
else
Log(LOG_WARNING, "CHANINFO: invalid MODE format ignored!");
if (arg_topic > 0) {
/* We got a topic */
if (!*Channel_Topic(chan) && Req->argv[arg_topic][0]) {
/* OK, there is no topic jet */
Channel_SetTopic(chan, Client, Req->argv[arg_topic]);
IRC_WriteStrChannelPrefix(Client, chan, from, false,
"TOPIC %s :%s", Req->argv[0], Channel_Topic(chan));
}
}
/* Forward CHANINFO to other servers */
if (Req->argc == 5)
IRC_WriteStrServersPrefixFlag(Client, from, 'C',
"CHANINFO %s %s %s %s :%s",
Req->argv[0], Req->argv[1],
Req->argv[2], Req->argv[3],
Req->argv[4]);
else if (Req->argc == 3)
IRC_WriteStrServersPrefixFlag(Client, from, 'C',
"CHANINFO %s %s :%s",
Req->argv[0], Req->argv[1],
Req->argv[2]);
else
IRC_WriteStrServersPrefixFlag(Client, from, 'C',
"CHANINFO %s %s",
Req->argv[0], Req->argv[1]);
return CONNECTED;
} /* IRC_CHANINFO */
/**
* Handler for the IRC "TOPIC" command.
*
* @param Client The client from which this command has been received.
* @param Req Request structure with prefix and all parameters.
* @return CONNECTED or DISCONNECTED.
*/
GLOBAL bool
IRC_TOPIC( CLIENT *Client, REQUEST *Req )
{
CHANNEL *chan;
CLIENT *from;
char *topic;
bool r, topic_power;
assert( Client != NULL );
assert( Req != NULL );
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
chan = Channel_Search(Req->argv[0]);
if (!chan)
return IRC_WriteErrClient(from, ERR_NOSUCHCHANNEL_MSG,
Client_ID(from), Req->argv[0]);
/* Only remote servers and channel members are allowed to change the
* channel topic, and IRC operators when the Conf_OperCanMode option
* is set in the server configuration. */
if (Client_Type(Client) != CLIENT_SERVER) {
topic_power = Client_HasMode(from, 'o');
if (!Channel_IsMemberOf(chan, from)
&& !(Conf_OperCanMode && topic_power))
return IRC_WriteErrClient(from, ERR_NOTONCHANNEL_MSG,
Client_ID(from), Req->argv[0]);
} else
topic_power = true;
if (Req->argc == 1) {
/* Request actual topic */
topic = Channel_Topic(chan);
if (*topic) {
r = IRC_WriteStrClient(from, RPL_TOPIC_MSG,
Client_ID(Client),
Channel_Name(chan), topic);
#ifndef STRICT_RFC
if (!r)
return r;
r = IRC_WriteStrClient(from, RPL_TOPICSETBY_MSG,
Client_ID(Client),
Channel_Name(chan),
Channel_TopicWho(chan),
Channel_TopicTime(chan));
#endif
return r;
}
else
return IRC_WriteStrClient(from, RPL_NOTOPIC_MSG,
Client_ID(from),
Channel_Name(chan));
}
if (Channel_HasMode(chan, 't')) {
/* Topic Lock. Is the user a channel op or IRC operator? */
if(!topic_power &&
!Channel_UserHasMode(chan, from, 'h') &&
!Channel_UserHasMode(chan, from, 'o') &&
!Channel_UserHasMode(chan, from, 'a') &&
!Channel_UserHasMode(chan, from, 'q'))
return IRC_WriteErrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(from),
Channel_Name(chan));
}
/* Set new topic */
Channel_SetTopic(chan, from, Req->argv[1]);
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>");
if (Conf_OperServerMode)
from = Client_ThisServer();
/* 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 */
