/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2011 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>
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 */
+/**
+ * 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 )
{
- /* Handle client mode requests */
-
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 'x': /* Cloak hostname */
if (Client_HasMode(Client, 'r'))
- IRC_WriteStrClient(Origin,
+ ok = IRC_WriteStrClient(Origin,
ERR_RESTRICTED_MSG,
Client_ID(Origin));
else
x[0] = '\0';
goto client_exit;
}
- if( ! ok ) break;
+ if (!ok)
+ break;
/* 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 ));
+ 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] )
- {
+ 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';
+ 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);
}
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 */
{
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;
+ bool connected, set, skiponce, retval, onchannel, modeok, use_servermode;
int mode_arg, arg_arg;
CLIENT *client;
long l;
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 */
- }
- }
+ 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));
- }
+ 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];
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
projects / ngircd-alex.git / blobdiff