/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
*
* 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
#include "portab.h"
-static char UNUSED id[] = "$Id: irc-mode.c,v 1.19 2002/12/14 13:36:19 alex Exp $";
-
#include "imp.h"
#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include "defines.h"
#include "conn.h"
-#include "client.h"
#include "channel.h"
-#include "defines.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"
-LOCAL BOOLEAN Add_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
-LOCAL BOOLEAN Add_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
+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 ));
-LOCAL BOOLEAN Del_Invite PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
-LOCAL BOOLEAN Del_Ban PARAMS(( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern ));
+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));
-LOCAL BOOLEAN Send_ListChange PARAMS(( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask ));
+static bool Send_ListChange PARAMS((const char *Mode, CLIENT *Prefix,
+ CLIENT *Client, CHANNEL *Channel, const char *Mask));
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_MODE( CLIENT *Client, REQUEST *Req )
{
- CHAR *mode_ptr, the_modes[CLIENT_MODE_LEN], x[2];
- CLIENT *cl, *chan_cl, *prefix;
- BOOLEAN set, ok, modeok;
+ CLIENT *cl, *origin;
CHANNEL *chan;
-
+
assert( Client != NULL );
assert( Req != NULL );
- cl = chan_cl = prefix = NULL;
- chan = NULL;
-
- /* Keine Parameter? */
+ /* No parameters? */
if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- /* Ziel suchen: Client bzw. Channel */
- if( Client_IsValidNick( Req->argv[0] )) cl = Client_Search( Req->argv[0] );
- if( Channel_IsValidName( Req->argv[0] )) chan = Channel_Search( Req->argv[0] );
+ /* 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;
+
+ /* Channel or user mode? */
+ cl = NULL; chan = NULL;
+ if (Client_IsValidNick(Req->argv[0]))
+ cl = Client_Search(Req->argv[0]);
+ if (Channel_IsValidName(Req->argv[0]))
+ chan = Channel_Search(Req->argv[0]);
+
+ if (cl)
+ return Client_Mode(Client, Req, origin, cl);
+ if (chan)
+ return Channel_Mode(Client, Req, origin, chan);
+
+ /* No target found! */
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->argv[0]);
+} /* IRC_MODE */
- /* Kein Ziel gefunden? */
- if(( ! cl ) && ( ! chan )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
- assert(( cl && chan ) != TRUE );
+static bool
+Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target )
+{
+ /* Handle client mode requests */
- /* Falsche Anzahl Parameter? */
- if(( cl ) && ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- if(( chan ) && ( Req->argc > 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ char the_modes[COMMAND_LEN], x[2], *mode_ptr;
+ bool ok, set;
+ int mode_arg;
+ size_t len;
- /* Prefix fuer Antworten etc. ermitteln */
- if( Client_Type( Client ) == CLIENT_SERVER )
+ /* Is the client allowed to request or change the modes? */
+ if( Client_Type( Client ) == CLIENT_USER )
{
- prefix = Client_Search( Req->prefix );
- if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
+ /* Users are only allowed to manipulate their own modes! */
+ if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
}
- else prefix = Client;
-
- if(( chan ) && (( Req->argc == 2 ) || ( Req->argc == 3 )))
- {
- /* pruefen, ob "Listen-Operation": Invite, Ban */
- if(( Req->argv[1][0] == '-' ) || ( Req->argv[1][0] == '+' )) mode_ptr = &Req->argv[1][1];
- else mode_ptr = &Req->argv[1][0];
- if( Req->argc == 2 )
+ /* Mode request: let's answer it :-) */
+ 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, "-" );
+
+ x[1] = '\0';
+ ok = CONNECTED;
+ while( mode_ptr )
+ {
+ mode_ptr++;
+ if( ! *mode_ptr )
{
- /* Liste anzeigen */
- if( *mode_ptr == 'I' ) return Lists_ShowInvites( prefix, chan );
- if( *mode_ptr == 'b' ) return Lists_ShowBans( prefix, chan );
+ /* Try next argument if there's any */
+ mode_arg++;
+ if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg];
+ else break;
}
- else
+
+ 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;
+ }
+ continue;
+ }
+
+ /* Validate modes */
+ x[0] = '\0';
+ switch( *mode_ptr )
{
- /* Listen veraendern */
-
- if( Client_Type( Client ) == CLIENT_USER )
- {
- /* Ist der User Channel-Operator? */
- modeok = FALSE;
- if( strchr( Channel_UserModes( chan, Client ), 'o' )) modeok = TRUE;
- if( Conf_OperCanMode )
+ 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 )
{
- /* auch IRC-Operatoren duerfen MODE verwenden */
- if( Client_OperByMe( Client )) modeok = TRUE;
+ 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_OperByMe(Origin)
+ || Client_Type(Client) == CLIENT_SERVER)
+ x[0] = 'c';
+ else
+ ok = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
+ break;
- if( ! modeok )
+ case 'o': /* IRC operator (only unsettable!) */
+ if(( ! set ) || ( Client_Type( Client ) == CLIENT_SERVER ))
{
- Log( LOG_DEBUG, "Can't change modes: \"%s\" is not operator on %s!", Client_ID( Client ), Channel_Name( chan ));
- return IRC_WriteStrClient( Client, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Client ), Channel_Name( chan ));
+ Client_SetOperByMe( Target, false );
+ x[0] = 'o';
}
- }
-
- if( Req->argv[1][0] == '+' )
- {
- /* Listen-Eintrag hinzufuegen */
- if( *mode_ptr == 'I' ) return Add_Invite( prefix, Client, chan, Req->argv[2] );
- if( *mode_ptr == 'b' ) return Add_Ban( prefix, Client, chan, Req->argv[2] );
- }
- else if( Req->argv[1][0] == '-' )
- {
- /* Listen-Eintrag loeschen */
- if( *mode_ptr == 'I' ) return Del_Invite( prefix, Client, chan, Req->argv[2] );
- if( *mode_ptr == 'b' ) return Del_Ban( prefix, Client, chan, Req->argv[2] );
- }
+ 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'))
+ IRC_WriteStrClient(Origin,
+ ERR_RESTRICTED_MSG,
+ Client_ID(Origin));
+ else
+ x[0] = 'x';
+ 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 );
+ x[0] = '\0';
+ goto client_exit;
}
- }
+ if( ! ok ) break;
- /* Client ermitteln, wenn bei Channel-Modes mit 3 Parametern */
- if(( chan ) && (Req->argc == 3 ))
- {
- chan_cl = Client_Search( Req->argv[2] );
- if( ! chan_cl ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
+ /* Is there a valid mode change? */
+ if( ! x[0] ) continue;
+
+ if( set )
+ {
+ /* Set mode */
+ if( Client_ModeAdd( 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:
- /* Wenn Anfragender ein User ist: Zugriff erlaubt? */
- if( Client_Type( Client ) == CLIENT_USER )
+ /* Are there changed modes? */
+ if( the_modes[1] )
{
- if( cl )
+ /* Remoce 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 )
{
- /* MODE ist nur fuer sich selber zulaessig! */
- if( cl != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client ));
+ /* Forward modes to other servers */
+ IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes );
}
- if( chan )
+ else
{
- /* Darf der User die Channel-Modes ermitteln? */
+ /* 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 );
}
+ LogDebug("%s \"%s\": Mode change, now \"%s\".",
+ Client_TypeText(Target), Client_Mask(Target),
+ Client_Modes(Target));
}
+
+ IRC_SetPenalty( Client, 1 );
+ return ok;
+} /* Client_Mode */
- /* Werden die Modes "nur" erfragt? */
- if(( cl ) && ( Req->argc == 1 )) return IRC_WriteStrClient( Client, RPL_UMODEIS_MSG, Client_ID( Client ), Client_Modes( cl ));
- if(( chan ) && ( Req->argc == 1 )) return IRC_WriteStrClient( Client, RPL_CHANNELMODEIS_MSG, Client_ID( Client ), Channel_Name( chan ), Channel_Modes( chan ));
-
- mode_ptr = Req->argv[1];
- /* Sollen Modes gesetzt oder geloescht werden? */
- if( cl )
- {
- if( *mode_ptr == '+' ) set = TRUE;
- else if( *mode_ptr == '-' ) set = FALSE;
- else return IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Client ));
+static bool
+Channel_Mode_Answer_Request(CLIENT *Origin, CHANNEL *Channel)
+{
+ char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], argadd[CLIENT_PASS_LEN];
+ const char *mode_ptr;
+
+ /* Member or not? -- That's the question! */
+ if (!Channel_IsMemberOf(Channel, Origin))
+ return IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
+ Client_ID(Origin), Channel_Name(Channel), Channel_Modes(Channel));
+
+ /* The sender is a member: generate extended reply */
+ strlcpy(the_modes, Channel_Modes(Channel), sizeof(the_modes));
+ mode_ptr = the_modes;
+ the_args[0] = '\0';
+
+ while(*mode_ptr) {
+ switch(*mode_ptr) {
+ case 'l':
+ snprintf(argadd, sizeof(argadd), " %lu", Channel_MaxUsers(Channel));
+ strlcat(the_args, argadd, sizeof(the_args));
+ break;
+ case 'k':
+ strlcat(the_args, " ", sizeof(the_args));
+ strlcat(the_args, Channel_Key(Channel), sizeof(the_args));
+ break;
+ }
mode_ptr++;
}
+ 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);
+}
+
+
+/**
+ * Handle channel mode and channel-user mode changes
+ */
+static bool
+Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
+{
+ char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2],
+ argadd[CLIENT_PASS_LEN], *mode_ptr;
+ bool connected, set, skiponce, retval, onchannel;
+ bool modeok = true, use_servermode = false;
+ int mode_arg, arg_arg;
+ 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? */
+ onchannel = Channel_IsMemberOf(Channel, Origin);
+ modeok = false;
+ /* channel operator? */
+ if (onchannel &&
+ 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 */
+ }
+ }
+
+ 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];
+ if (Req->argc > mode_arg + 1)
+ arg_arg = mode_arg + 1;
else
- {
- if( *mode_ptr == '-' ) set = FALSE;
- else set = TRUE;
- if(( *mode_ptr == '-' ) || ( *mode_ptr == '+' )) mode_ptr++;
+ arg_arg = -1;
+
+ /* Initial state: set or unset modes? */
+ skiponce = false;
+ switch (*mode_ptr) {
+ case '-':
+ set = false;
+ break;
+ case '+':
+ set = true;
+ break;
+ default:
+ set = true;
+ skiponce = true;
}
- /* Reply-String mit Aenderungen vorbereiten */
- if( set ) strcpy( the_modes, "+" );
- else strcpy( the_modes, "-" );
+ /* Prepare reply string */
+ strcpy(the_modes, set ? "+" : "-");
+ the_args[0] = '\0';
- ok = TRUE;
x[1] = '\0';
- while( *mode_ptr )
- {
- x[0] = '\0';
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
- /* Befehl kommt von einem Server, daher
- * trauen wir ihm "unbesehen" ... */
- x[0] = *mode_ptr;
- }
- else
- {
- /* Modes validieren */
- if( cl )
- {
- /* User-Modes */
- switch( *mode_ptr )
- {
- case 'i':
- /* invisible */
- x[0] = 'i';
- break;
- case 'o':
- /* operator (kann nur geloescht werden) */
- if( ! set )
- {
- Client_SetOperByMe( Client, FALSE );
- x[0] = 'o';
- }
- else ok = IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
- break;
- case 'r':
- /* restricted (kann nur gesetzt werden) */
- if( set ) x[0] = 'r';
- else ok = IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
- break;
- case 's':
- /* server messages */
- x[0] = 's';
- break;
- default:
- Log( LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\"!?", set ? '+' : '-', *mode_ptr, Client_ID( Client ));
- ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Client ), set ? '+' : '-', *mode_ptr );
- x[0] = '\0';
- }
- }
- if( chan )
- {
- /* Ist der User ein Channel Operator? */
- modeok = FALSE;
- if( strchr( Channel_UserModes( chan, Client ), 'o' )) modeok = TRUE;
- if( Conf_OperCanMode )
- {
- /* auch IRC-Operatoren duerfen MODE verwenden */
- if( Client_OperByMe( Client )) modeok = TRUE;
- }
+ connected = CONNECTED;
+ while (mode_ptr) {
+ if (!skiponce)
+ mode_ptr++;
+ if (!*mode_ptr) {
+ /* Try next argument if there's any */
+ if (arg_arg > mode_arg)
+ mode_arg = arg_arg;
+ else
+ mode_arg++;
- if( ! modeok )
- {
- Log( LOG_DEBUG, "Can't change modes: \"%s\" is not operator on %s!", Client_ID( Client ), Channel_Name( chan ));
- ok = IRC_WriteStrClient( Client, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Client ), Channel_Name( chan ));
- break;
- }
-
- /* Channel-Modes oder Channel-User-Modes */
- if( chan_cl )
- {
- /* Channel-User-Modes */
- switch( *mode_ptr )
- {
- case 'o':
- /* Channel Operator */
- x[0] = 'o';
- break;
- case 'v':
- /* Voice */
- x[0] = 'v';
- break;
- default:
- Log( LOG_DEBUG, "Unknown channel-user-mode \"%c%c\" from \"%s\" on \"%s\" at %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Client ), Client_ID( chan_cl ), Channel_Name( chan ));
- ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Client ), set ? '+' : '-', *mode_ptr );
- x[0] = '\0';
- }
- }
- else
- {
- /* Channel-Modes */
- switch( *mode_ptr )
- {
- case 'i':
- /* Invite-Only */
- x[0] = 'i';
- break;
- case 'm':
- /* Moderated */
- x[0] = 'm';
- break;
- case 'n':
- /* kein Schreiben in den Channel von aussen */
- x[0] = 'n';
- break;
- case 't':
- /* Topic Lock */
- x[0] = 't';
- break;
- case 'P':
- /* Persistent channel */
- if( set && ( ! Client_OperByMe( Client )))
- {
- /* there are too many persistent channels in the network! */
- ok = IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
- }
- else x[0] = 'P';
- break;
- default:
- Log( LOG_DEBUG, "Unknown channel-mode \"%c%c\" from \"%s\" at %s!?", set ? '+' : '-', *mode_ptr, Client_ID( Client ), Channel_Name( chan ));
- ok = IRC_WriteStrClient( Client, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID( Client ), set ? '+' : '-', *mode_ptr );
- x[0] = '\0';
- }
+ if (mode_arg >= Req->argc)
+ break;
+ mode_ptr = Req->argv[mode_arg];
+
+ if (Req->argc > mode_arg + 1)
+ arg_arg = mode_arg + 1;
+ else
+ arg_arg = -1;
+ }
+ skiponce = 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] == '-') {
+ /* 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));
}
+ set = *mode_ptr == '+';
}
+ continue;
}
- if( ! ok ) break;
-
- mode_ptr++;
- if( ! x[0] ) continue;
- /* Okay, gueltigen Mode gefunden */
- if( cl )
- {
- /* Es geht um User-Modes */
- if( set )
- {
- /* Mode setzen. Wenn der Client ihn noch nicht hatte: merken */
- if( Client_ModeAdd( cl, x[0] )) strcat( the_modes, x );
-
- }
+ /* Are there arguments left? */
+ if (arg_arg >= Req->argc)
+ arg_arg = -1;
+
+ /* Validate modes */
+ x[0] = '\0';
+ argadd[0] = '\0';
+ client = NULL;
+ switch (*mode_ptr) {
+ /* --- Channel modes --- */
+ case 'i': /* Invite only */
+ case 'm': /* Moderated */
+ case 'n': /* Only members can write */
+ case 's': /* Secret channel */
+ case 't': /* Topic locked */
+ case 'z': /* Secure connections only */
+ if (modeok)
+ x[0] = *mode_ptr;
else
- {
- /* Modes geloescht. Wenn der Client ihn hatte: merken */
- if( Client_ModeDel( cl, x[0] )) strcat( the_modes, x );
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin), Channel_Name(Channel));
+ break;
+ case 'k': /* Channel key */
+ if (!set) {
+ if (modeok)
+ x[0] = *mode_ptr;
+ else
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ break;
}
-
- /* "nachbearbeiten" */
- if( x[0] == 'a' )
- {
- /* away */
- if( set ) Client_SetAway( cl, DEFAULT_AWAY_MSG );
- else Client_SetAway( cl, NULL );
+ 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));
+ x[0] = *mode_ptr;
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ }
+ Req->argv[arg_arg][0] = '\0';
+ arg_arg++;
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
}
- }
- if( chan )
- {
- /* Es geht um Channel-Modes oder Channel-User-Modes */
- if( chan_cl )
- {
- /* Channel-User-Modes */
- if( set )
- {
- /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */
- if( Channel_UserModeAdd( chan, chan_cl, x[0] )) strcat( the_modes, x );
+ break;
+ case 'l': /* Member limit */
+ if (!set) {
+ if (modeok)
+ x[0] = *mode_ptr;
+ else
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ break;
+ }
+ if (arg_arg > mode_arg) {
+ if (modeok) {
+ l = atol(Req->argv[arg_arg]);
+ if (l > 0 && l < 0xFFFF) {
+ Channel_ModeDel(Channel, 'l');
+ Channel_SetMaxUsers(Channel, l);
+ snprintf(argadd, sizeof(argadd),
+ "%ld", l);
+ x[0] = *mode_ptr;
+ }
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
+ Req->argv[arg_arg][0] = '\0';
+ arg_arg++;
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
+ }
+ 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))
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
else
- {
- /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */
- if( Channel_UserModeDel( chan, chan_cl, x[0] )) strcat( the_modes, x );
+ x[0] = 'P';
+ } else
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ break;
+ /* --- Channel user modes --- */
+ case 'o': /* Channel operator */
+ case 'v': /* Voice */
+ if (arg_arg > mode_arg) {
+ if (modeok) {
+ client = Client_Search(Req->argv[arg_arg]);
+ if (client)
+ x[0] = *mode_ptr;
+ else
+ connected = IRC_WriteStrClient(Client,
+ ERR_NOSUCHNICK_MSG,
+ Client_ID(Client),
+ Req->argv[arg_arg]);
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
+ Req->argv[arg_arg][0] = '\0';
+ arg_arg++;
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
}
- else
- {
- /* Channel-Mode */
- if( set )
- {
- /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */
- if( Channel_ModeAdd( chan, x[0] )) strcat( the_modes, x );
+ break;
+ /* --- Channel lists --- */
+ case 'I': /* Invite lists */
+ case 'b': /* Ban lists */
+ if (arg_arg > mode_arg) {
+ /* modify list */
+ if (modeok) {
+ connected = 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]);
+ } else {
+ connected = IRC_WriteStrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
}
+ Req->argv[arg_arg][0] = '\0';
+ arg_arg++;
+ } else {
+ if (*mode_ptr == 'I')
+ Channel_ShowInvites(Origin, Channel);
else
- {
- /* Mode setzen. Wenn der Channel ihn noch nicht hatte: merken */
- if( Channel_ModeDel( chan, x[0] )) strcat( the_modes, x );
- }
+ Channel_ShowBans(Origin, Channel);
}
+ 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)
+ connected = IRC_WriteStrClient(Origin,
+ ERR_UMODEUNKNOWNFLAG2_MSG,
+ Client_ID(Origin),
+ set ? '+' : '-', *mode_ptr);
+ x[0] = '\0';
+ goto chan_exit;
+ } /* switch() */
+
+ if (!connected)
+ break;
+
+ /* Is there a valid mode change? */
+ if (!x[0])
+ continue;
+
+ /* 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;
+
+ continue;
}
- }
- /* Wurden Modes geaendert? */
- if( the_modes[1] )
- {
- if( cl )
- {
- /* Client-Mode */
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
- /* Modes an andere Server forwarden */
- IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Client_ID( cl ), the_modes );
+ if (client) {
+ /* Channel-User-Mode */
+ 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
- {
- /* Bestaetigung an Client schicken & andere Server informieren */
- ok = IRC_WriteStrClientPrefix( Client, prefix, "MODE %s %s", Client_ID( cl ), the_modes );
- IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Client_ID( cl ), the_modes );
+ } else {
+ /* Channel-Mode */
+ 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));
}
- Log( LOG_DEBUG, "User \"%s\": Mode change, now \"%s\".", Client_Mask( cl ), Client_Modes( cl ));
}
- if( chan )
- {
- /* Channel-Modes oder Channel-User-Mode */
- if( chan_cl )
- {
- /* Channel-User-Mode */
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
- /* Modes an andere Server und Channel-User forwarden */
- IRC_WriteStrServersPrefix( Client, prefix, "MODE %s %s :%s", Channel_Name( chan ), the_modes, Client_ID( chan_cl));
- IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s %s", Channel_Name( chan ), the_modes, Client_ID( chan_cl));
- }
- else
- {
- /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
- ok = IRC_WriteStrClientPrefix( Client, prefix, "MODE %s %s %s", Channel_Name( chan ), the_modes, Client_ID( chan_cl));
- IRC_WriteStrServersPrefix( Client, prefix, "MODE %s %s :%s", Channel_Name( chan ), the_modes, Client_ID( chan_cl));
- IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s %s", Channel_Name( chan ), the_modes, Client_ID( chan_cl));
- }
- Log( LOG_DEBUG, "User \"%s\" on %s: Mode change, now \"%s\".", Client_Mask( chan_cl), Channel_Name( chan ), Channel_UserModes( chan, chan_cl ));
- }
- else
- {
- /* Channel-Mode */
- if( Client_Type( Client ) == CLIENT_SERVER )
- {
- /* Modes an andere Server und Channel-User forwarden */
- IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Channel_Name( chan ), the_modes );
- IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s", Channel_Name( chan ), the_modes );
- }
- else
- {
- /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
- ok = IRC_WriteStrClientPrefix( Client, prefix, "MODE %s %s", Channel_Name( chan ), the_modes );
- IRC_WriteStrServersPrefix( Client, prefix, "MODE %s :%s", Channel_Name( chan ), the_modes );
- IRC_WriteStrChannelPrefix( Client, chan, prefix, FALSE, "MODE %s %s", Channel_Name( chan ), the_modes );
- }
- Log( LOG_DEBUG, "Channel \"%s\": Mode change, now \"%s\".", Channel_Name( chan ), Channel_Modes( chan ));
+
+ /* Are there additional arguments to add? */
+ if (argadd[0]) {
+ strlcat(the_args, " ", sizeof(the_args));
+ strlcat(the_args, argadd, sizeof(the_args));
+ }
+ }
+
+ chan_exit:
+ /* Are there changed modes? */
+ if (the_modes[1]) {
+ /* Clean up mode string */
+ len = strlen(the_modes) - 1;
+ if ((the_modes[len] == '+') || (the_modes[len] == '-'))
+ the_modes[len] = '\0';
+
+ if (Client_Type(Client) == CLIENT_SERVER) {
+ /* 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 */
+ 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);
}
}
- return ok;
-} /* IRC_MODE */
+ IRC_SetPenalty(Client, 1);
+ return connected;
+} /* Channel_Mode */
-GLOBAL BOOLEAN
+GLOBAL bool
IRC_AWAY( CLIENT *Client, REQUEST *Req )
{
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 ));
return IRC_WriteStrClient( Client, RPL_NOWAWAY_MSG, Client_ID( Client ));
}
else
{
- /* AWAY loeschen */
- Client_SetAway( Client, NULL );
+ 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 */
-LOCAL BOOLEAN
-Add_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
+static bool
+Add_Ban_Invite(int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Pattern)
{
- CHAR *mask;
+ const char *mask;
+ bool already;
+ bool ret;
assert( Client != NULL );
assert( Channel != NULL );
assert( Pattern != NULL );
+ assert(what == 'I' || what == 'b');
- mask = Lists_MakeMask( Pattern );
-
- if( ! Lists_AddInvited( Prefix, mask, Channel, FALSE )) return CONNECTED;
- return Send_ListChange( "+I", Prefix, Client, Channel, mask );
-} /* Add_Invite */
-
+ mask = Lists_MakeMask(Pattern);
-LOCAL BOOLEAN
-Add_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
-{
- CHAR *mask;
-
- assert( Client != NULL );
- assert( Channel != NULL );
- assert( Pattern != NULL );
-
- 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;
+ }
+ if (already && (Client_Type(Prefix) == CLIENT_SERVER))
+ return CONNECTED;
- if( ! Lists_AddBanned( Prefix, mask, Channel )) return CONNECTED;
- return Send_ListChange( "+b", Prefix, Client, Channel, mask );
-} /* Add_Ban */
+ if (what == 'I')
+ return Send_ListChange("+I", Prefix, Client, Channel, mask);
+ return Send_ListChange("+b", Prefix, Client, Channel, mask);
+}
-LOCAL BOOLEAN
-Del_Invite( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
+static bool
+Del_Ban_Invite(int what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Pattern)
{
- CHAR *mask;
+ const char *mask;
+ struct list_head *list;
assert( Client != NULL );
assert( Channel != NULL );
assert( Pattern != NULL );
+ assert(what == 'I' || what == 'b');
mask = Lists_MakeMask( Pattern );
- Lists_DelInvited( mask, Channel );
- return Send_ListChange( "-I", Prefix, Client, Channel, mask );
-} /* Del_Invite */
-
-LOCAL BOOLEAN
-Del_Ban( CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Pattern )
-{
- CHAR *mask;
-
- assert( Client != NULL );
- assert( Channel != NULL );
- assert( Pattern != NULL );
+ if (what == 'I')
+ list = Channel_GetListInvites(Channel);
+ else
+ list = Channel_GetListBans(Channel);
- mask = Lists_MakeMask( Pattern );
- Lists_DelBanned( mask, Channel );
+ Lists_Del(list, mask);
+ if (what == 'I')
+ return Send_ListChange( "-I", Prefix, Client, Channel, mask );
return Send_ListChange( "-b", Prefix, Client, Channel, mask );
-} /* Del_Ban */
+}
-LOCAL BOOLEAN
-Send_ListChange( CHAR *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, CHAR *Mask )
+static bool
+Send_ListChange(const char *Mode, CLIENT *Prefix, CLIENT *Client,
+ CHANNEL *Channel, const char *Mask)
{
- /* Bestaetigung an Client schicken & andere Server sowie Channel-User informieren */
-
- BOOLEAN ok;
+ bool ok;
if( Client_Type( Client ) == CLIENT_USER )
{
- /* Bestaetigung an Client */
+ /* send confirmation to client */
ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
}
- else ok = TRUE;
+ else ok = true;
- /* an andere Server */
+ /* to other servers */
IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
- /* und lokale User im Channel */
- IRC_WriteStrChannelPrefix( Client, Channel, Prefix, FALSE, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
+ /* and local users in 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