/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
*
* 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 2 of the License, or
* (at your option) any later version.
* Please read the file COPYING, README and AUTHORS for more information.
- *
- * IRC commands for mode changes (MODE, AWAY, ...)
*/
-
#include "portab.h"
+/**
+ * @file
+ * IRC commands for mode changes (like MODE, AWAY, etc.)
+ */
+
#include "imp.h"
#include <assert.h>
#include <stdio.h>
#include "defines.h"
#include "conn.h"
-#include "client.h"
#include "channel.h"
#include "irc-write.h"
#include "lists.h"
#include "log.h"
#include "parse.h"
#include "messages.h"
-#include "resolve.h"
#include "conf.h"
#include "exp.h"
#include "irc-mode.h"
-static bool Client_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ));
-static bool Channel_Mode PARAMS(( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ));
+static bool Client_Mode PARAMS((CLIENT *Client, REQUEST *Req, CLIENT *Origin,
+ CLIENT *Target));
+static bool Channel_Mode PARAMS((CLIENT *Client, REQUEST *Req, CLIENT *Origin,
+ CHANNEL *Channel));
-static bool Add_Ban_Invite PARAMS((int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Pattern));
-static bool Del_Ban_Invite PARAMS((int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Pattern));
+static bool Add_To_List PARAMS((char what, CLIENT *Prefix, CLIENT *Client,
+ CHANNEL *Channel, const char *Pattern));
+static bool Del_From_List PARAMS((char what, CLIENT *Prefix, CLIENT *Client,
+ CHANNEL *Channel, const char *Pattern));
-static bool Send_ListChange PARAMS(( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Mask ));
+static bool Send_ListChange PARAMS((const bool IsAdd, const char ModeChar,
+ CLIENT *Prefix, CLIENT *Client,
+ CHANNEL *Channel, const char *Mask));
+/**
+ * Handler for the IRC "MODE" command.
+ *
+ * See RFC 2812 section 3.1.5 ("user mode message") and section 3.2.3
+ * ("channel mode message"), and RFC 2811 section 4 ("channel modes").
+ *
+ * @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_MODE( CLIENT *Client, REQUEST *Req )
{
CLIENT *cl, *origin;
CHANNEL *chan;
- assert( Client != NULL );
- assert( Req != NULL );
+ assert(Client != NULL);
+ assert(Req != NULL);
/* No parameters? */
- if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ if (Req->argc < 1)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
/* Origin for answers */
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
- origin = Client_Search( Req->prefix );
- if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
- }
- else origin = Client;
+ if (Client_Type(Client) == CLIENT_SERVER) {
+ origin = Client_Search(Req->prefix);
+ if (!origin)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client),
+ Req->prefix);
+ } else
+ origin = Client;
/* Channel or user mode? */
cl = NULL; chan = NULL;
} /* IRC_MODE */
+/**
+ * Check if the "mode limit" for a client has been reached.
+ *
+ * This limit doesn't apply for servers or services!
+ *
+ * @param Client The client to check.
+ * @param Count The number of modes already handled.
+ * @return true if the limit has been reached.
+ */
static bool
-Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
+Mode_Limit_Reached(CLIENT *Client, int Count)
{
- /* Handle client mode requests */
+ if (Client_Type(Client) == CLIENT_SERVER
+ || Client_Type(Client) == CLIENT_SERVICE)
+ return false;
+ if (Count < MAX_HNDL_MODES_ARG)
+ return false;
+ return true;
+}
+
+/**
+ * Handle client mode requests
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @param Origin The originator of the MODE command (prefix).
+ * @param Target The target (client) of this MODE command.
+ * @returns CONNECTED or DISCONNECTED.
+ */
+static bool
+Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
+{
char the_modes[COMMAND_LEN], x[2], *mode_ptr;
bool ok, set;
int mode_arg;
size_t len;
/* Is the client allowed to request or change the modes? */
- if( Client_Type( Client ) == CLIENT_USER )
- {
+ if (Client_Type(Client) == CLIENT_USER) {
/* Users are only allowed to manipulate their own modes! */
- if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
+ if (Target != Client)
+ return IRC_WriteStrClient(Client,
+ ERR_USERSDONTMATCH_MSG,
+ Client_ID(Client));
}
/* Mode request: let's answer it :-) */
- if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target ));
+ if (Req->argc == 1)
+ return IRC_WriteStrClient(Origin, RPL_UMODEIS_MSG,
+ Client_ID(Origin),
+ Client_Modes(Target));
mode_arg = 1;
mode_ptr = Req->argv[mode_arg];
/* Initial state: set or unset modes? */
- if( *mode_ptr == '+' ) set = true;
- else if( *mode_ptr == '-' ) set = false;
- else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin ));
-
- /* Prepare reply string */
- if( set ) strcpy( the_modes, "+" );
- else strcpy( the_modes, "-" );
+ if (*mode_ptr == '+') {
+ set = true;
+ strcpy(the_modes, "+");
+ } else if (*mode_ptr == '-') {
+ set = false;
+ strcpy(the_modes, "-");
+ } else
+ return IRC_WriteStrClient(Origin, ERR_UMODEUNKNOWNFLAG_MSG,
+ Client_ID(Origin));
x[1] = '\0';
ok = CONNECTED;
- while( mode_ptr )
- {
+ while (mode_ptr) {
mode_ptr++;
- if( ! *mode_ptr )
- {
+ if (!*mode_ptr) {
/* Try next argument if there's any */
mode_arg++;
- if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
- else break;
+ if (mode_arg < Req->argc)
+ mode_ptr = Req->argv[mode_arg];
+ else
+ break;
}
-
- switch( *mode_ptr )
- {
- case '+':
- case '-':
- if((( *mode_ptr == '+' ) && ( ! set )) || (( *mode_ptr == '-' ) && ( set )))
- {
- /* Action modifier ("+"/"-") must be changed ... */
- len = strlen( the_modes ) - 1;
- if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' ))
- {
- /* Adjust last action modifier in result */
- the_modes[len] = *mode_ptr;
- }
- else
- {
- /* Append modifier character to result string */
- x[0] = *mode_ptr;
- strlcat( the_modes, x, sizeof( the_modes ));
- }
- if( *mode_ptr == '+' ) set = true;
- else set = false;
+
+ switch(*mode_ptr) {
+ case '+':
+ case '-':
+ if ((*mode_ptr == '+' && !set)
+ || (*mode_ptr == '-' && set)) {
+ /* Action modifier ("+"/"-") must be changed */
+ len = strlen(the_modes) - 1;
+ if (the_modes[len] == '+'
+ || the_modes[len] == '-') {
+ /* Last character in the "result
+ * string" was an "action", so just
+ * overwrite it with the new action */
+ the_modes[len] = *mode_ptr;
+ } else {
+ /* Append new modifier character to
+ * the resulting mode string */
+ x[0] = *mode_ptr;
+ strlcat(the_modes, x,
+ sizeof(the_modes));
}
- continue;
+ if (*mode_ptr == '+')
+ set = true;
+ else
+ set = false;
+ }
+ continue;
}
-
+
/* Validate modes */
x[0] = '\0';
- switch( *mode_ptr )
- {
- case 'i': /* Invisible */
- case 's': /* Server messages */
- case 'w': /* Wallops messages */
- x[0] = *mode_ptr;
- break;
-
- case 'a': /* Away */
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
- x[0] = 'a';
- Client_SetAway( Origin, DEFAULT_AWAY_MSG );
- }
- else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
- break;
-
- case 'o': /* IRC operator (only unsettable!) */
- if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
- {
- Client_SetOperByMe( Target, false );
- x[0] = 'o';
- }
- else ok = IRC_WriteStrClient( Origin, ERR_NOPRIVILEGES_MSG, Client_ID( Origin ));
- break;
-
- case 'r': /* Restricted (only settable) */
- if(( set ) || ( Client_Type( Client ) == CLIENT_SERVER )) x[0] = 'r';
- else ok = IRC_WriteStrClient( Origin, ERR_RESTRICTED_MSG, Client_ID( Origin ));
- break;
-
- default:
- Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Origin ));
- if( Client_Type( Client ) != CLIENT_SERVER ) ok = IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Origin ), set ? '+' : '-', *mode_ptr );
+ switch (*mode_ptr) {
+ case 'C': /* Only messages from clients sharing a channel */
+ case 'i': /* Invisible */
+ case 's': /* Server messages */
+ case 'w': /* Wallops messages */
+ x[0] = *mode_ptr;
+ break;
+ case 'a': /* Away */
+ if (Client_Type(Client) == CLIENT_SERVER) {
+ x[0] = 'a';
+ Client_SetAway(Origin, DEFAULT_AWAY_MSG);
+ } else
+ ok = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
+ break;
+ case 'c': /* Receive connect notices
+ * (only settable by IRC operators!) */
+ if (!set || Client_Type(Client) == CLIENT_SERVER
+ || Client_OperByMe(Origin))
+ x[0] = 'c';
+ else
+ ok = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
+ break;
+ case 'o': /* IRC operator (only unsettable!) */
+ if (!set || Client_Type(Client) == CLIENT_SERVER) {
+ Client_SetOperByMe(Target, false);
+ x[0] = 'o';
+ } else
+ ok = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
+ break;
+ case 'r': /* Restricted (only settable) */
+ if (set || Client_Type(Client) == CLIENT_SERVER)
+ x[0] = 'r';
+ else
+ ok = IRC_WriteStrClient(Origin,
+ ERR_RESTRICTED_MSG,
+ Client_ID(Origin));
+ break;
+ case 'x': /* Cloak hostname */
+ if (Client_HasMode(Client, 'r'))
+ ok = IRC_WriteStrClient(Origin,
+ ERR_RESTRICTED_MSG,
+ Client_ID(Origin));
+ else
+ x[0] = 'x';
+ break;
+ default:
+ if (Client_Type(Client) != CLIENT_SERVER) {
+ Log(LOG_DEBUG,
+ "Unknown mode \"%c%c\" from \"%s\"!?",
+ set ? '+' : '-', *mode_ptr,
+ Client_ID(Origin));
+ ok = IRC_WriteStrClient(Origin,
+ ERR_UMODEUNKNOWNFLAG2_MSG,
+ Client_ID(Origin),
+ set ? '+' : '-',
+ *mode_ptr);
x[0] = '\0';
- goto client_exit;
+ } else {
+ Log(LOG_DEBUG,
+ "Handling unknown mode \"%c%c\" from \"%s\" for \"%s\" ...",
+ set ? '+' : '-', *mode_ptr,
+ Client_ID(Origin), Client_ID(Target));
+ x[0] = *mode_ptr;
+ }
}
- if( ! ok ) break;
- /* Is there a valid mode change? */
- if( ! x[0] ) continue;
+ if (!ok)
+ break;
- if( set )
- {
- /* Set mode */
- if( Client_ModeAdd( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
+ /* Is there a valid mode change? */
+ if (!x[0])
+ continue;
+ if (set) {
+ if (Client_ModeAdd(Target, x[0]))
+ strlcat(the_modes, x, sizeof(the_modes));
+ } else {
+ if (Client_ModeDel(Target, x[0]))
+ strlcat(the_modes, x, sizeof(the_modes));
}
- else
- {
- /* Unset mode */
- if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes ));
- }
}
-client_exit:
-
+
/* Are there changed modes? */
- if( the_modes[1] )
- {
- /* Remoce needless action modifier characters */
- len = strlen( the_modes ) - 1;
- if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0';
+ if (the_modes[1]) {
+ /* Remove needless action modifier characters */
+ len = strlen(the_modes) - 1;
+ if (the_modes[len] == '+' || the_modes[len] == '-')
+ the_modes[len] = '\0';
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
+ if (Client_Type(Client) == CLIENT_SERVER) {
/* Forward modes to other servers */
- IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
- }
- else
- {
+ if (Client_Conn(Target) != NONE) {
+ /* Remote server (service?) changed modes
+ * for one of our clients. Inform it! */
+ IRC_WriteStrClientPrefix(Target, Origin,
+ "MODE %s :%s",
+ Client_ID(Target),
+ the_modes);
+ }
+ IRC_WriteStrServersPrefix(Client, Origin,
+ "MODE %s :%s",
+ Client_ID(Target),
+ the_modes);
+ } else {
/* Send reply to client and inform other servers */
- ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
- IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
+ ok = IRC_WriteStrClientPrefix(Client, Origin,
+ "MODE %s :%s",
+ Client_ID(Target),
+ the_modes);
+ IRC_WriteStrServersPrefix(Client, Origin,
+ "MODE %s :%s",
+ Client_ID(Target),
+ the_modes);
}
- Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( Target ), Client_Modes( Target ));
+ LogDebug("%s \"%s\": Mode change, now \"%s\".",
+ Client_TypeText(Target), Client_Mask(Target),
+ Client_Modes(Target));
}
-
- IRC_SetPenalty( Client, 1 );
+
+ IRC_SetPenalty(Client, 1);
return ok;
} /* Client_Mode */
if (the_args[0])
strlcat(the_modes, the_args, sizeof(the_modes));
- return IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
- Client_ID(Origin), Channel_Name(Channel), the_modes);
+ if (!IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
+ Client_ID(Origin), Channel_Name(Channel),
+ the_modes))
+ return DISCONNECTED;
+#ifndef STRICT_RFC
+ if (!IRC_WriteStrClient(Origin, RPL_CREATIONTIME_MSG,
+ Client_ID(Origin), Channel_Name(Channel),
+ Channel_CreationTime(Channel)))
+ return DISCONNECTED;
+#endif
+ return CONNECTED;
}
+/**
+ * Handle channel mode and channel-user mode changes
+ */
static bool
-Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
+Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
{
- /* Handle channel and channel-user modes */
-
- char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
- bool ok, set, modeok = true, skiponce, use_servermode = false;
- int mode_arg, arg_arg;
+ char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2],
+ argadd[CLIENT_PASS_LEN], *mode_ptr;
+ bool connected, set, skiponce, retval, onchannel, modeok, use_servermode;
+ int mode_arg, arg_arg, mode_arg_count = 0;
CLIENT *client;
long l;
size_t len;
+ if (Channel_IsModeless(Channel))
+ return IRC_WriteStrClient(Client, ERR_NOCHANMODES_MSG,
+ Client_ID(Client), Channel_Name(Channel));
+
/* Mode request: let's answer it :-) */
if (Req->argc <= 1)
return Channel_Mode_Answer_Request(Origin, Channel);
- /* Is the user allowed to change modes? */
- if (Client_Type(Client) == CLIENT_USER) {
- /* Is the originating user on that channel? */
- if (!Channel_IsMemberOf(Channel, Origin))
- return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
- Client_ID(Origin), Channel_Name(Channel));
- modeok = false;
- /* channel operator? */
- if (strchr(Channel_UserModes(Channel, Origin), 'o'))
- modeok = true;
- else if(Conf_OperCanMode) {
- /* IRC-Operators can use MODE as well */
- if (Client_OperByMe(Origin)) {
- modeok = true;
- if (Conf_OperServerMode)
- use_servermode = true; /* Change Origin to Server */
- }
- }
- }
+ Channel_CheckAdminRights(Channel, Client, Origin,
+ &onchannel, &modeok, &use_servermode);
+
+ if (!onchannel && !modeok)
+ return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
mode_arg = 1;
mode_ptr = Req->argv[mode_arg];
/* Initial state: set or unset modes? */
skiponce = false;
switch (*mode_ptr) {
- case '-': set = false; break;
- case '+': set = true; break;
+ case '-':
+ set = false;
+ break;
+ case '+':
+ set = true;
+ break;
default:
set = true;
skiponce = true;
the_args[0] = '\0';
x[1] = '\0';
- ok = CONNECTED;
+ connected = CONNECTED;
while (mode_ptr) {
- if (! skiponce)
+ if (!skiponce)
mode_ptr++;
if (!*mode_ptr) {
/* Try next argument if there's any */
+ if (arg_arg < 0)
+ break;
if (arg_arg > mode_arg)
mode_arg = arg_arg;
else
switch (*mode_ptr) {
case '+':
case '-':
- if (((*mode_ptr == '+') && !set) || ((*mode_ptr == '-') && set)) {
+ if (((*mode_ptr == '+') && !set)
+ || ((*mode_ptr == '-') && set)) {
/* Action modifier ("+"/"-") must be changed ... */
- len = strlen( the_modes ) - 1;
- if ((the_modes[len] == '+') || (the_modes[len] == '-')) {
+ len = strlen(the_modes) - 1;
+ if (the_modes[len] == '+' || the_modes[len] == '-') {
/* Adjust last action modifier in result */
the_modes[len] = *mode_ptr;
} else {
}
/* Are there arguments left? */
- if( arg_arg >= Req->argc ) arg_arg = -1;
+ if (arg_arg >= Req->argc)
+ arg_arg = -1;
/* Validate modes */
x[0] = '\0';
case 'i': /* Invite only */
case 'm': /* Moderated */
case 'n': /* Only members can write */
+ case 'R': /* Registered users only */
case 's': /* Secret channel */
case 't': /* Topic locked */
+ case 'z': /* Secure connections only */
if (modeok)
x[0] = *mode_ptr;
else
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin), Channel_Name(Channel));
break;
case 'k': /* Channel key */
- if (! set) {
+ if (Mode_Limit_Reached(Client, mode_arg_count++))
+ goto chan_exit;
+ if (!set) {
if (modeok)
x[0] = *mode_ptr;
else
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
break;
}
if (arg_arg > mode_arg) {
if (modeok) {
Channel_ModeDel(Channel, 'k');
- Channel_SetKey(Channel, Req->argv[arg_arg]);
- strlcpy(argadd, Channel_Key(Channel), sizeof(argadd));
+ Channel_SetKey(Channel,
+ Req->argv[arg_arg]);
+ strlcpy(argadd, Channel_Key(Channel),
+ sizeof(argadd));
x[0] = *mode_ptr;
} else {
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
Req->argv[arg_arg][0] = '\0';
arg_arg++;
} else {
- ok = IRC_WriteStrClient(Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID(Origin), Req->command);
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
}
break;
case 'l': /* Member limit */
+ if (Mode_Limit_Reached(Client, mode_arg_count++))
+ goto chan_exit;
if (!set) {
if (modeok)
x[0] = *mode_ptr;
else
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
break;
}
if (arg_arg > mode_arg) {
if (l > 0 && l < 0xFFFF) {
Channel_ModeDel(Channel, 'l');
Channel_SetMaxUsers(Channel, l);
- snprintf(argadd, sizeof(argadd), "%ld", l);
+ snprintf(argadd, sizeof(argadd),
+ "%ld", l);
x[0] = *mode_ptr;
}
} else {
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
Req->argv[arg_arg][0] = '\0';
arg_arg++;
} else {
- ok = IRC_WriteStrClient(Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID(Origin), Req->command);
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
}
break;
+ case 'O': /* IRC operators only */
+ if (modeok) {
+ /* Only IRC operators are allowed to
+ * set the 'O' channel mode! */
+ if (set && !(Client_OperByMe(Client)
+ || Client_Type(Client) == CLIENT_SERVER))
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
+ else
+ x[0] = 'O';
+ } else
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ break;
case 'P': /* Persistent channel */
if (modeok) {
/* Only IRC operators are allowed to
* set the 'P' channel mode! */
- if (set && !(Client_OperByMe(Client) || Client_Type(Client) == CLIENT_SERVER))
- ok = IRC_WriteStrClient(Origin, ERR_NOPRIVILEGES_MSG, Client_ID(Origin));
+ if (set && !(Client_OperByMe(Client)
+ || Client_Type(Client) == CLIENT_SERVER))
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
else
- x[0] = 'P';
+ x[0] = 'P';
} else
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
break;
/* --- Channel user modes --- */
+ case 'a':
+ case 'h':
+ case 'q':
+ if (Client_Type(Client) != CLIENT_SERVER) {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ goto chan_exit;
+ }
case 'o': /* Channel operator */
case 'v': /* Voice */
if (arg_arg > mode_arg) {
if (client)
x[0] = *mode_ptr;
else
- ok = IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->argv[arg_arg]);
+ connected = IRC_WriteStrClient(Client,
+ ERR_NOSUCHNICK_MSG,
+ Client_ID(Client),
+ Req->argv[arg_arg]);
} else {
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
Req->argv[arg_arg][0] = '\0';
arg_arg++;
} else {
- ok = IRC_WriteStrClient(Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID(Origin), Req->command);
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
}
break;
/* --- Channel lists --- */
case 'I': /* Invite lists */
case 'b': /* Ban lists */
+ if (Mode_Limit_Reached(Client, mode_arg_count++))
+ goto chan_exit;
if (arg_arg > mode_arg) {
/* modify list */
if (modeok) {
- ok = set ? Add_Ban_Invite(*mode_ptr, Origin, Client, Channel, Req->argv[arg_arg])
- : Del_Ban_Invite(*mode_ptr, Origin, Client, Channel, Req->argv[arg_arg]);
+ connected = set
+ ? Add_To_List(*mode_ptr, Origin,
+ Client, Channel,
+ Req->argv[arg_arg])
+ : Del_From_List(*mode_ptr, Origin,
+ Client, Channel,
+ Req->argv[arg_arg]);
} else {
- ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG,
- Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
Req->argv[arg_arg][0] = '\0';
arg_arg++;
}
break;
default:
- Log(LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?",
- set ? '+' : '-', *mode_ptr, Client_ID(Origin), Channel_Name(Channel));
- if (Client_Type(Client) != CLIENT_SERVER)
- ok = IRC_WriteStrClient(Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID(Origin), set ? '+' : '-', *mode_ptr);
- x[0] = '\0';
- goto chan_exit;
- } /* switch() */
+ if (Client_Type(Client) != CLIENT_SERVER) {
+ Log(LOG_DEBUG,
+ "Unknown mode \"%c%c\" from \"%s\" on %s!?",
+ set ? '+' : '-', *mode_ptr,
+ Client_ID(Origin), Channel_Name(Channel));
+ connected = IRC_WriteStrClient(Origin,
+ ERR_UNKNOWNMODE_MSG,
+ Client_ID(Origin), *mode_ptr,
+ Channel_Name(Channel));
+ x[0] = '\0';
+ } else {
+ Log(LOG_DEBUG,
+ "Handling unknown mode \"%c%c\" from \"%s\" on %s ...",
+ set ? '+' : '-', *mode_ptr,
+ Client_ID(Origin), Channel_Name(Channel));
+ x[0] = *mode_ptr;
+ }
+ }
- if (!ok)
+ if (!connected)
break;
/* Is there a valid mode change? */
/* Validate target client */
if (client && (!Channel_IsMemberOf(Channel, client))) {
- if (!IRC_WriteStrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
- Client_ID(Origin), Client_ID(client), Channel_Name(Channel)))
- break;
+ if (!IRC_WriteStrClient
+ (Origin, ERR_USERNOTINCHANNEL_MSG,
+ Client_ID(Origin), Client_ID(client),
+ Channel_Name(Channel)))
+ break;
continue;
}
if (client) {
/* Channel-User-Mode */
- if (set) {
- if (Channel_UserModeAdd(Channel, client, x[0])) {
- strlcat(the_args, " ", sizeof(the_args));
- strlcat(the_args, Client_ID(client), sizeof(the_args));
- strlcat(the_modes, x, sizeof(the_modes));
- Log(LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"",
- Client_Mask(client), Channel_Name(Channel), Channel_UserModes(Channel, client));
- }
- } else {
- if (Channel_UserModeDel(Channel, client, x[0])) {
- strlcat(the_args, " ", sizeof(the_args));
- strlcat(the_args, Client_ID(client), sizeof(the_args));
- strlcat(the_modes, x, sizeof(the_modes));
- Log(LOG_DEBUG, "User \"%s\": Mode change on %s, now \"%s\"",
- Client_Mask(client), Channel_Name(Channel), Channel_UserModes(Channel, client));
- }
+ retval = set
+ ? Channel_UserModeAdd(Channel, client, x[0])
+ : Channel_UserModeDel(Channel, client, x[0]);
+ if (retval) {
+ strlcat(the_args, " ", sizeof(the_args));
+ strlcat(the_args, Client_ID(client),
+ sizeof(the_args));
+ strlcat(the_modes, x, sizeof(the_modes));
+ LogDebug
+ ("User \"%s\": Mode change on %s, now \"%s\"",
+ Client_Mask(client), Channel_Name(Channel),
+ Channel_UserModes(Channel, client));
}
} else {
/* Channel-Mode */
- if (set) {
- if (Channel_ModeAdd( Channel, x[0])) {
- strlcat(the_modes, x, sizeof(the_modes));
- Log(LOG_DEBUG, "Channel %s: Mode change, now \"%s\".", Channel_Name(Channel), Channel_Modes(Channel));
- }
- } else {
- /* Channel-Mode */
- if (Channel_ModeDel(Channel, x[0])) {
- strlcat(the_modes, x, sizeof(the_modes));
- Log(LOG_DEBUG, "Channel %s: Mode change, now \"%s\".",
- Channel_Name(Channel), Channel_Modes(Channel));
- }
+ retval = set
+ ? Channel_ModeAdd(Channel, x[0])
+ : Channel_ModeDel(Channel, x[0]);
+ if (retval) {
+ strlcat(the_modes, x, sizeof(the_modes));
+ LogDebug("Channel %s: Mode change, now \"%s\".",
+ Channel_Name(Channel),
+ Channel_Modes(Channel));
}
}
strlcat(the_args, argadd, sizeof(the_args));
}
}
-chan_exit:
+
+ chan_exit:
/* Are there changed modes? */
if (the_modes[1]) {
/* Clean up mode string */
the_modes[len] = '\0';
if (Client_Type(Client) == CLIENT_SERVER) {
- /* Forward mode changes to channel users and other servers */
- IRC_WriteStrServersPrefix(Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args);
- IRC_WriteStrChannelPrefix(Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name(Channel), the_modes, the_args);
+ /* MODE requests for local channels from other servers
+ * are definitely invalid! */
+ if (Channel_IsLocal(Channel)) {
+ Log(LOG_ALERT, "Got remote MODE command for local channel!? Ignored.");
+ return CONNECTED;
+ }
+
+ /* Forward mode changes to channel users and all the
+ * other remote servers: */
+ IRC_WriteStrServersPrefix(Client, Origin,
+ "MODE %s %s%s", Channel_Name(Channel),
+ the_modes, the_args);
+ IRC_WriteStrChannelPrefix(Client, Channel, Origin,
+ false, "MODE %s %s%s", Channel_Name(Channel),
+ the_modes, the_args);
} else {
if (use_servermode)
Origin = Client_ThisServer();
/* Send reply to client and inform other servers and channel users */
- ok = IRC_WriteStrClientPrefix(Client, Origin, "MODE %s %s%s",
- Channel_Name(Channel), the_modes, the_args);
- IRC_WriteStrServersPrefix(Client, Origin, "MODE %s %s%s",
- Channel_Name(Channel), the_modes, the_args);
- IRC_WriteStrChannelPrefix(Client, Channel, Origin, false, "MODE %s %s%s",
- Channel_Name(Channel), the_modes, the_args);
+ connected = IRC_WriteStrClientPrefix(Client, Origin,
+ "MODE %s %s%s", Channel_Name(Channel),
+ the_modes, the_args);
+ /* Only forward requests for non-local channels */
+ if (!Channel_IsLocal(Channel))
+ IRC_WriteStrServersPrefix(Client, Origin,
+ "MODE %s %s%s", Channel_Name(Channel),
+ the_modes, the_args);
+ IRC_WriteStrChannelPrefix(Client, Channel, Origin,
+ false, "MODE %s %s%s", Channel_Name(Channel),
+ the_modes, the_args);
}
}
IRC_SetPenalty(Client, 1);
- return CONNECTED;
+ return connected;
} /* Channel_Mode */
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
if(( Req->argc == 1 ) && (Req->argv[0][0] ))
{
- /* AWAY setzen */
Client_SetAway( Client, Req->argv[0] );
Client_ModeAdd( Client, 'a' );
IRC_WriteStrServersPrefix( Client, Client, "MODE %s :+a", Client_ID( Client ));
}
else
{
- /* AWAY loeschen */
Client_ModeDel( Client, 'a' );
IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
} /* IRC_AWAY */
+/**
+ * Add entries to channel invite, ban and exception lists.
+ *
+ * @param what Can be 'I' for invite or 'b' for ban list.
+ * @param Prefix The originator of the command.
+ * @param Client The sender of the command.
+ * @param Channel The channel of which the list should be modified.
+ * @param Pattern The pattern to add to the list.
+ * @return CONNECTED or DISCONNECTED.
+ */
static bool
-Add_Ban_Invite(int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Pattern)
+Add_To_List(char what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel,
+ const char *Pattern)
{
const char *mask;
- bool already;
- bool ret;
+ struct list_head *list;
- assert( Client != NULL );
- assert( Channel != NULL );
- assert( Pattern != NULL );
+ assert(Client != NULL);
+ assert(Channel != NULL);
+ assert(Pattern != NULL);
assert(what == 'I' || what == 'b');
mask = Lists_MakeMask(Pattern);
- already = Lists_CheckDupeMask(Channel_GetListInvites(Channel), mask);
- if (!already) {
- if (what == 'I')
- ret = Channel_AddInvite(Channel, mask, false);
- else
- ret = Channel_AddBan(Channel, mask);
- if (!ret)
- return CONNECTED;
+ switch(what) {
+ case 'I':
+ list = Channel_GetListInvites(Channel);
+ break;
+ case 'b':
+ list = Channel_GetListBans(Channel);
+ break;
}
- if (already && (Client_Type(Prefix) == CLIENT_SERVER))
- return CONNECTED;
- if (what == 'I')
- return Send_ListChange("+I", Prefix, Client, Channel, mask);
- return Send_ListChange("+b", Prefix, Client, Channel, mask);
+ if (Lists_CheckDupeMask(list, mask))
+ return CONNECTED;
+ if (Client_Type(Client) == CLIENT_USER &&
+ Lists_Count(list) >= MAX_HNDL_CHANNEL_LISTS)
+ return IRC_WriteStrClient(Client, ERR_LISTFULL_MSG,
+ Client_ID(Client),
+ Channel_Name(Channel), mask,
+ MAX_HNDL_CHANNEL_LISTS);
+
+ switch (what) {
+ case 'I':
+ if (!Channel_AddInvite(Channel, mask, false))
+ return CONNECTED;
+ break;
+ case 'b':
+ if (!Channel_AddBan(Channel, mask))
+ return CONNECTED;
+ break;
+ }
+ return Send_ListChange(true, what, Prefix, Client, Channel, mask);
}
+/**
+ * Delete entries from channel invite, ban and exeption lists.
+ *
+ * @param what Can be 'I' for invite or 'b' for ban list.
+ * @param Prefix The originator of the command.
+ * @param Client The sender of the command.
+ * @param Channel The channel of which the list should be modified.
+ * @param Pattern The pattern to add to the list.
+ * @return CONNECTED or DISCONNECTED.
+ */
static bool
-Del_Ban_Invite(int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Pattern)
+Del_From_List(char what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel,
+ const char *Pattern)
{
const char *mask;
struct list_head *list;
- assert( Client != NULL );
- assert( Channel != NULL );
- assert( Pattern != NULL );
+ assert(Client != NULL);
+ assert(Channel != NULL);
+ assert(Pattern != NULL);
assert(what == 'I' || what == 'b');
- mask = Lists_MakeMask( Pattern );
+ mask = Lists_MakeMask(Pattern);
- if (what == 'I')
- list = Channel_GetListInvites(Channel);
- else
- list = Channel_GetListBans(Channel);
+ switch (what) {
+ case 'I':
+ list = Channel_GetListInvites(Channel);
+ break;
+ case 'b':
+ list = Channel_GetListBans(Channel);
+ break;
+ }
+ if (!Lists_CheckDupeMask(list, mask))
+ return CONNECTED;
Lists_Del(list, mask);
- if (what == 'I')
- return Send_ListChange( "-I", Prefix, Client, Channel, mask );
- return Send_ListChange( "-b", Prefix, Client, Channel, mask );
+
+ return Send_ListChange(false, what, Prefix, Client, Channel, mask);
}
+/**
+ * Send information about changed channel ban/invite lists to clients.
+ *
+ * @param IsAdd true if the list item has been added, false otherwise.
+ * @param ModeChar The mode to use (e. g. 'b' or 'I')
+ * @param Prefix The originator of the mode list change.
+ * @param Client The sender of the command.
+ * @param Channel The channel of which the list has been modified.
+ * @param Mask The mask which has been added or removed.
+ * @return CONNECTED or DISCONNECTED.
+ */
static bool
-Send_ListChange( char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Mask )
+Send_ListChange(const bool IsAdd, const char ModeChar, CLIENT *Prefix,
+ CLIENT *Client, CHANNEL *Channel, const char *Mask)
{
- /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
+ bool ok = true;
- bool ok;
+ /* Send confirmation to the client */
+ if (Client_Type(Client) == CLIENT_USER)
+ ok = IRC_WriteStrClientPrefix(Client, Prefix, "MODE %s %c%c %s",
+ Channel_Name(Channel),
+ IsAdd ? '+' : '-',
+ ModeChar, Mask);
- if( Client_Type( Client ) == CLIENT_USER )
- {
- /* Bestaetigung an Client */
- ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
- }
- else ok = true;
+ /* to other servers */
+ IRC_WriteStrServersPrefix(Client, Prefix, "MODE %s %c%c %s",
+ Channel_Name(Channel), IsAdd ? '+' : '-',
+ ModeChar, Mask);
- /* an andere Server */
- IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
+ /* and local users in channel */
+ IRC_WriteStrChannelPrefix(Client, Channel, Prefix, false,
+ "MODE %s %c%c %s", Channel_Name(Channel),
+ IsAdd ? '+' : '-', ModeChar, Mask );
- /* und lokale User im Channel */
- IRC_WriteStrChannelPrefix( Client, Channel, Prefix, false, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
-
return ok;
} /* Send_ListChange */
projects / ngircd-alex.git / blobdiff