#include "match.h"
#include "messages.h"
#include "parse.h"
+#include "irc.h"
#include "irc-info.h"
#include "irc-write.h"
#include "conf.h"
#include "irc-channel.h"
-/*
+/**
+ * Part from all channels.
+ *
* RFC 2812, (3.2.1 Join message Command):
- * Note that this message
- * accepts a special argument ("0"), which is a special request to leave all
- * channels the user is currently a member of. The server will process this
- * message as if the user had sent a PART command (See Section 3.2.2) for
- * each channel he is a member of.
+ * Note that this message accepts a special argument ("0"), which is a
+ * special request to leave all channels the user is currently a member of.
+ * The server will process this message as if the user had sent a PART
+ * command (See Section 3.2.2) for each channel he is a member of.
+ *
+ * @param client Client that initiated the part request
+ * @param target Client that should part all joined channels
+ * @returns CONNECTED or DISCONNECTED
*/
static bool
part_from_all_channels(CLIENT* client, CLIENT *target)
Channel_Part(target, client, Channel_Name(chan), Client_ID(target));
}
return CONNECTED;
-}
+} /* part_from_all_channels */
/**
* Check weather a local client is allowed to join an already existing
* channel or not.
- * @param Client Client that sent the JOIN command
- * @param chan Channel to check
- * @param channame Name of the channel
- * @param key Provided channel key (or NULL if none has been provided)
- * @return true if client is allowed to join channel, false otherwise
+ *
+ * @param Client Client that sent the JOIN command
+ * @param chan Channel to check
+ * @param channame Name of the channel
+ * @param key Provided channel key (or NULL)
+ * @returns true if client is allowed to join, false otherwise
*/
static bool
join_allowed(CLIENT *Client, CHANNEL *chan, const char *channame,
const char *key)
{
- bool is_invited, is_banned;
+ bool is_invited, is_banned, is_exception;
const char *channel_modes;
/* Allow IRC operators to overwrite channel limits */
return true;
is_banned = Lists_Check(Channel_GetListBans(chan), Client);
+ is_exception = Lists_Check(Channel_GetListExcepts(chan), Client);
is_invited = Lists_Check(Channel_GetListInvites(chan), Client);
- if (is_banned && !is_invited) {
+ if (is_banned && !is_invited && !is_exception) {
/* Client is banned from channel (and not on invite list) */
IRC_WriteStrClient(Client, ERR_BANNEDFROMCHAN_MSG,
Client_ID(Client), channame);
return false;
}
+ if (strchr(channel_modes, 'R') && !strchr(Client_Modes(Client), 'R')) {
+ /* Only registered users are allowed! */
+ IRC_WriteStrClient(Client, ERR_REGONLYCHANNEL_MSG,
+ Client_ID(Client), channame);
+ return false;
+ }
+
return true;
-}
+} /* join_allowed */
+/**
+ * Set user channel modes.
+ *
+ * @param chan Channel
+ * @param target User to set modes for
+ * @param flags Channel modes to add
+ */
static void
join_set_channelmodes(CHANNEL *chan, CLIENT *target, const char *flags)
{
}
}
- /* If channel persistent and client is ircop: make client chanop */
- if (strchr(Channel_Modes(chan), 'P') && strchr(Client_Modes(target), 'o'))
+ /* If the channel is persistent (+P) and client is an IRC op:
+ * make client chanop, if not disabled in configuration. */
+ if (strchr(Channel_Modes(chan), 'P') && Conf_OperChanPAutoOp
+ && strchr(Client_Modes(target), 'o'))
Channel_UserModeAdd(chan, target, 'o');
-}
+} /* join_set_channelmodes */
+/**
+ * Forward JOIN command to a specific server
+ *
+ * This function diffentiates between servers using RFC 2813 mode that
+ * support the JOIN command with appended ASCII 7 character and channel
+ * modes, and servers using RFC 1459 protocol which require separate JOIN
+ * and MODE commands.
+ *
+ * @param To Forward JOIN (and MODE) command to this peer server
+ * @param Prefix Client used to prefix the genrated commands
+ * @param Data Parameters of JOIN command to forward, probably
+ * containing channel modes separated by ASCII 7.
+ */
static void
cb_join_forward(CLIENT *To, CLIENT *Prefix, void *Data)
{
} /* cb_join_forward */
+/**
+ * Forward JOIN command to all servers
+ *
+ * This function calls cb_join_forward(), which differentiates between
+ * protocol implementations (e.g. RFC 2812, RFC 1459).
+ *
+ * @param Client Client used to prefix the genrated commands
+ * @param target Forward JOIN (and MODE) command to this peer server
+ * @param chan Channel structure
+ * @param channame Channel name
+ */
static void
join_forward(CLIENT *Client, CLIENT *target, CHANNEL *chan,
const char *channame)
{
char modes[CHANNEL_MODE_LEN], str[COMMAND_LEN];
+ /* RFC 2813, 4.2.1: channel modes are separated from the channel
+ * name with ASCII 7, if any, and not spaces: */
strlcpy(&modes[1], Channel_UserModes(chan, target), sizeof(modes) - 1);
if (modes[1])
modes[0] = 0x7;
IRC_WriteStrChannelPrefix(Client, chan, target, false,
"JOIN :%s", channame);
- /* syncronize channel modes */
+ /* synchronize channel modes */
if (modes[1]) {
IRC_WriteStrChannelPrefix(Client, chan, target, false,
"MODE %s +%s %s", channame,
} /* join_forward */
+/**
+ * Aknowledge user JOIN request and send "channel info" numerics.
+ *
+ * @param Client Client used to prefix the genrated commands
+ * @param target Forward commands/numerics to this user
+ * @param chan Channel structure
+ * @param channame Channel name
+ */
static bool
join_send_topic(CLIENT *Client, CLIENT *target, CHANNEL *chan,
const char *channame)
/* send list of channel members to client */
if (!IRC_Send_NAMES(Client, chan))
return false;
- return IRC_WriteStrClient(Client, RPL_ENDOFNAMES_MSG, Client_ID(Client), Channel_Name(chan));
-}
+ return IRC_WriteStrClient(Client, RPL_ENDOFNAMES_MSG, Client_ID(Client),
+ Channel_Name(chan));
+} /* join_send_topic */
+/**
+ * Handler for the IRC "JOIN" command.
+ *
+ * See RFC 2812, 3.2.1 "Join message"; RFC 2813, 4.2.1 "Join message".
+ *
+ * @param Client The client from which this command has been received
+ * @param Req Request structure with prefix and all parameters
+ * @returns CONNECTED or DISCONNECTED
+ */
GLOBAL bool
IRC_JOIN( CLIENT *Client, REQUEST *Req )
{
CLIENT *target;
CHANNEL *chan;
- assert( Client != NULL );
- assert( Req != NULL );
+ assert (Client != NULL);
+ assert (Req != NULL);
/* Bad number of arguments? */
if (Req->argc < 1 || Req->argc > 2)
target = Client;
if (!target)
- return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix);
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
/* Is argument "0"? */
if (Req->argc == 1 && !strncmp("0", Req->argv[0], 2))
chan = Channel_Search(channame);
if (!chan && Conf_PredefChannelsOnly) {
- /* channel must be created, but server does not allow this */
- IRC_WriteStrClient(Client, ERR_BANNEDFROMCHAN_MSG, Client_ID(Client), channame);
- break;
+ /* channel must be created, but forbidden by config */
+ IRC_WriteStrClient(Client, ERR_BANNEDFROMCHAN_MSG,
+ Client_ID(Client), channame);
+ goto join_next;
}
/* Local client? */
if (Client_Type(Client) == CLIENT_USER) {
+ if (chan) {
+ /* Already existing channel: already member? */
+ if (Channel_IsMemberOf(chan, Client))
+ goto join_next;
+ }
+
/* Test if the user has reached the channel limit */
if ((Conf_MaxJoins > 0) &&
- (Channel_CountForUser(Client) >= Conf_MaxJoins))
- return IRC_WriteStrClient(Client,
+ (Channel_CountForUser(Client) >= Conf_MaxJoins)) {
+ if (!IRC_WriteStrClient(Client,
ERR_TOOMANYCHANNELS_MSG,
- Client_ID(Client), channame);
+ Client_ID(Client), channame))
+ return DISCONNECTED;
+ goto join_next;
+ }
+
if (chan) {
/* Already existing channel: check if the
* client is allowed to join */
if (!join_allowed(Client, chan, channame, key))
- break;
+ goto join_next;
} else {
/* New channel: first user will become channel
* operator unless this is a modeless channel */
/* Join channel (and create channel if it doesn't exist) */
if (!Channel_Join(target, channame))
- break;
+ goto join_next;
if (!chan) { /* channel is new; it has been created above */
chan = Channel_Search(channame);
if (!join_send_topic(Client, target, chan, channame))
break; /* write error */
+ join_next:
/* next channel? */
channame = strtok_r(NULL, ",", &lastchan);
if (channame && key)
/**
* Handler for the IRC "PART" command.
+ *
+ * See RFC 2812, 3.2.2: "Part message".
+ *
+ * @param Client The client from which this command has been received
+ * @param Req Request structure with prefix and all parameters
+ * @returns CONNECTED or DISCONNECTED
*/
GLOBAL bool
IRC_PART(CLIENT * Client, REQUEST * Req)
} /* IRC_PART */
+/**
+ * Handler for the IRC "TOPIC" command.
+ *
+ * See RFC 2812, 3.2.4 "Topic message".
+ *
+ * @param Client The client from which this command has been received
+ * @param Req Request structure with prefix and all parameters
+ * @returns CONNECTED or DISCONNECTED
+ */
GLOBAL bool
IRC_TOPIC( CLIENT *Client, REQUEST *Req )
{
CHANNEL *chan;
CLIENT *from;
char *topic;
- bool onchannel, topicok, use_servermode, r;
+ bool r, topic_power;
assert( Client != NULL );
assert( Req != NULL );
return IRC_WriteStrClient(from, ERR_NOSUCHCHANNEL_MSG,
Client_ID(from), Req->argv[0]);
- Channel_CheckAdminRights(chan, Client, from,
- &onchannel, &topicok, &use_servermode);
-
- if (!onchannel && !topicok)
- return IRC_WriteStrClient(from, ERR_NOTONCHANNEL_MSG,
- Client_ID(from), Req->argv[0]);
+ /* Only remote servers and channel members are allowed to change the
+ * channel topic, and IRC opreators 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_WriteStrClient(from, ERR_NOTONCHANNEL_MSG,
+ Client_ID(from), Req->argv[0]);
+ } else
+ topic_power = true;
if (Req->argc == 1) {
/* Request actual topic */
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),
}
if (strchr(Channel_Modes(chan), 't')) {
- /* Topic Lock. Is the user a channel or IRC operator? */
- if (!topicok)
+ /* Topic Lock. Is the user a channel op or IRC operator? */
+ if(!topic_power &&
+ !strchr(Channel_UserModes(chan, from), 'h') &&
+ !strchr(Channel_UserModes(chan, from), 'o') &&
+ !strchr(Channel_UserModes(chan, from), 'a') &&
+ !strchr(Channel_UserModes(chan, from), 'q'))
return IRC_WriteStrClient(from, ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(from),
Channel_Name(chan));
Client_TypeText(from), Client_Mask(from), Channel_Name(chan),
Req->argv[1][0] ? Req->argv[1] : "<none>");
- if (use_servermode)
+ if (Conf_OperServerMode)
from = Client_ThisServer();
/* Update channel and forward new topic to other servers */
/**
* Handler for the IRC "LIST" command.
+ *
+ * See RFC 2812, 3.2.6 "List message".
+ *
* This implementation handles the local case as well as the forwarding of the
* LIST command to other servers in the IRC network.
+ *
+ * @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_LIST( CLIENT *Client, REQUEST *Req )
char *pattern;
CHANNEL *chan;
CLIENT *from, *target;
+ int count = 0;
- assert( Client != NULL );
- assert( Req != NULL );
+ assert(Client != NULL);
+ assert(Req != NULL);
/* Bad number of prameters? */
- if( Req->argc > 2 )
- return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
- Client_ID( Client ), Req->command );
+ if (Req->argc > 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
- if( Req->argc > 0 )
- pattern = strtok( Req->argv[0], "," );
+ if (Req->argc > 0)
+ pattern = strtok(Req->argv[0], ",");
else
pattern = "*";
/* Get sender from prefix, if any */
- if( Client_Type( Client ) == CLIENT_SERVER )
- from = Client_Search( Req->prefix );
+ if (Client_Type(Client) == CLIENT_SERVER)
+ from = Client_Search(Req->prefix);
else
from = Client;
- if( ! from )
- return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG,
- Client_ID( Client ), Req->prefix );
+ if (!from)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
+ Client_ID(Client), Req->prefix);
- if( Req->argc == 2 )
- {
+ if (Req->argc == 2) {
/* Forward to other server? */
- target = Client_Search( Req->argv[1] );
- if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER ))
- return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG,
- Client_ID( Client ), Req->argv[1] );
+ target = Client_Search(Req->argv[1]);
+ if (! target || Client_Type(target) != CLIENT_SERVER)
+ return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(Client),
+ Req->argv[1]);
- if( target != Client_ThisServer( ))
- {
+ if (target != Client_ThisServer()) {
/* Target is indeed an other server, forward it! */
- return IRC_WriteStrClientPrefix( target, from,
- "LIST %s :%s", Client_ID( from ),
- Req->argv[1] );
+ return IRC_WriteStrClientPrefix(target, from,
+ "LIST %s :%s",
+ Req->argv[0],
+ Req->argv[1]);
}
}
- while( pattern )
- {
+ while (pattern) {
/* Loop through all the channels */
- chan = Channel_First( );
- while( chan )
- {
+ if (Req->argc > 0)
+ ngt_LowerStr(pattern);
+ chan = Channel_First();
+ while (chan) {
/* Check search pattern */
- if( Match( pattern, Channel_Name( chan )))
- {
+ if (MatchCaseInsensitive(pattern, Channel_Name(chan))) {
/* Gotcha! */
- if( ! strchr( Channel_Modes( chan ), 's' ) ||
- Channel_IsMemberOf( chan, from ))
- {
- if( ! IRC_WriteStrClient( from,
- RPL_LIST_MSG, Client_ID( from ),
- Channel_Name( chan ),
- Channel_MemberCount( chan ),
- Channel_Topic( chan )))
+ if (!strchr(Channel_Modes(chan), 's')
+ || Channel_IsMemberOf(chan, from)
+ || (!Conf_MorePrivacy && Client_OperByMe(Client))) {
+ if ((Conf_MaxListSize > 0)
+ && IRC_CheckListTooBig(from, count,
+ Conf_MaxListSize,
+ "LIST"))
+ break;
+ if (!IRC_WriteStrClient(from,
+ RPL_LIST_MSG, Client_ID(from),
+ Channel_Name(chan),
+ Channel_MemberCount(chan),
+ Channel_Topic( chan )))
return DISCONNECTED;
+ count++;
}
}
- chan = Channel_Next( chan );
+ chan = Channel_Next(chan);
}
/* Get next name ... */
- if( Req->argc > 0 )
- pattern = strtok( NULL, "," );
+ if(Req->argc > 0)
+ pattern = strtok(NULL, ",");
else
pattern = NULL;
}
- return IRC_WriteStrClient( from, RPL_LISTEND_MSG, Client_ID( from ));
+ IRC_SetPenalty(from, 2);
+ return IRC_WriteStrClient(from, RPL_LISTEND_MSG, Client_ID(from));
} /* IRC_LIST */
+/**
+ * Handler for the IRC+ command "CHANINFO".
+ *
+ * See doc/Protocol.txt, section II.3:
+ * "Exchange channel-modes, topics, and persistent channels".
+ *
+ * @param Client The client from which this command has been received
+ * @param Req Request structure with prefix and all parameters
+ * @returns CONNECTED or DISCONNECTED
+ */
GLOBAL bool
IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
{
assert( Req != NULL );
/* Bad number of parameters? */
- if(( Req->argc < 2 ) || ( Req->argc == 4 ) || ( Req->argc > 5 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ if (Req->argc < 2 || Req->argc == 4 || Req->argc > 5)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
/* Compatibility kludge */
if( Req->argc == 5 ) arg_topic = 4;
projects / ngircd-alex.git / blobdiff