/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
+ * Copyright (c)2001-2023 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
* IRC commands for mode changes (like MODE, AWAY, etc.)
*/
-#include "imp.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include "defines.h"
#include "conn.h"
#include "channel.h"
+#include "irc-macros.h"
#include "irc-write.h"
#include "lists.h"
#include "log.h"
#include "messages.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,
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").
+ * This function detects whether user or channel modes should be modified
+ * and calls the appropriate sub-functions.
*
- * @param Client The client from which this command has been received.
- * @param Req Request structure with prefix and all parameters.
- * @returns CONNECTED or DISCONNECTED.
+ * @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_MODE( CLIENT *Client, REQUEST *Req )
assert(Client != NULL);
assert(Req != NULL);
- /* No parameters? */
- 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;
+ _IRC_GET_SENDER_OR_RETURN_(origin, Req, Client)
+
+ /* Test for "fake" MODE commands injected by this local instance,
+ * for example when handling the "DefaultUserModes" settings.
+ * This doesn't harm real commands, because prefixes of regular
+ * clients are checked in Validate_Prefix() and can't be faked. */
+ if (Req->prefix && Client_Search(Req->prefix) == Client_ThisServer())
+ Client = Client_Search(Req->prefix);
/* Channel or user mode? */
cl = NULL; chan = NULL;
return Channel_Mode(Client, Req, origin, chan);
/* No target found! */
- return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
Client_ID(Client), Req->argv[0]);
} /* IRC_MODE */
-
/**
* Check if the "mode limit" for a client has been reached.
*
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.
+ * @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.
+ * @return 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;
+ bool send_RPL_HOSTHIDDEN_MSG = false;
int mode_arg;
size_t len;
if (Client_Type(Client) == CLIENT_USER) {
/* Users are only allowed to manipulate their own modes! */
if (Target != Client)
- return IRC_WriteStrClient(Client,
+ return IRC_WriteErrClient(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_ID(Target),
Client_Modes(Target));
mode_arg = 1;
set = false;
strcpy(the_modes, "-");
} else
- return IRC_WriteStrClient(Origin, ERR_UMODEUNKNOWNFLAG_MSG,
+ return IRC_WriteErrClient(Origin, ERR_UMODEUNKNOWNFLAG_MSG,
Client_ID(Origin));
x[1] = '\0';
/* Validate modes */
x[0] = '\0';
switch (*mode_ptr) {
+ case 'b': /* Block private msgs */
case 'C': /* Only messages from clients sharing a channel */
case 'i': /* Invisible */
+ case 'I': /* Hide channel list from WHOIS */
case 's': /* Server messages */
case 'w': /* Wallops messages */
x[0] = *mode_ptr;
x[0] = 'a';
Client_SetAway(Origin, DEFAULT_AWAY_MSG);
} else
- ok = IRC_WriteStrClient(Origin,
+ ok = IRC_WriteErrClient(Origin,
ERR_NOPRIVILEGES_MSG,
Client_ID(Origin));
break;
case 'B': /* Bot */
if (Client_HasMode(Client, 'r'))
- ok = IRC_WriteStrClient(Origin,
+ ok = IRC_WriteErrClient(Origin,
ERR_RESTRICTED_MSG,
Client_ID(Origin));
else
x[0] = 'B';
break;
- case 'c': /* Receive connect notices
- * (only settable by IRC operators!) */
+ case 'c': /* Receive connect notices */
+ case 'q': /* KICK-protected user */
+ case 'F': /* disable flood protection */
+ /* (only settable by IRC operators!) */
if (!set || Client_Type(Client) == CLIENT_SERVER
- || Client_OperByMe(Origin))
- x[0] = 'c';
+ || Client_HasMode(Origin, 'o'))
+ x[0] = *mode_ptr;
else
- ok = IRC_WriteStrClient(Origin,
+ ok = IRC_WriteErrClient(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,
+ ok = IRC_WriteErrClient(Origin,
ERR_NOPRIVILEGES_MSG,
Client_ID(Origin));
break;
if (set || Client_Type(Client) == CLIENT_SERVER)
x[0] = 'r';
else
- ok = IRC_WriteStrClient(Origin,
+ ok = IRC_WriteErrClient(Origin,
ERR_RESTRICTED_MSG,
Client_ID(Origin));
break;
+ case 'R': /* Registered (not [un]settable by clients) */
+ if (Client_Type(Client) == CLIENT_SERVER)
+ x[0] = 'R';
+ else
+ ok = IRC_WriteErrClient(Origin,
+ ERR_NICKREGISTER_MSG,
+ Client_ID(Origin));
+ break;
case 'x': /* Cloak hostname */
if (Client_HasMode(Client, 'r'))
- ok = IRC_WriteStrClient(Origin,
+ ok = IRC_WriteErrClient(Origin,
ERR_RESTRICTED_MSG,
Client_ID(Origin));
- else
+ else if (!set || Conf_CloakHostModeX[0]
+ || Client_Type(Client) == CLIENT_SERVER
+ || Client_HasMode(Origin, 'o')) {
x[0] = 'x';
+ send_RPL_HOSTHIDDEN_MSG = true;
+ } else
+ ok = IRC_WriteErrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
break;
default:
if (Client_Type(Client) != CLIENT_SERVER) {
- Log(LOG_DEBUG,
+ LogDebug(
"Unknown mode \"%c%c\" from \"%s\"!?",
set ? '+' : '-', *mode_ptr,
Client_ID(Origin));
- ok = IRC_WriteStrClient(Origin,
+ ok = IRC_WriteErrClient(Origin,
ERR_UMODEUNKNOWNFLAG2_MSG,
Client_ID(Origin),
set ? '+' : '-',
*mode_ptr);
x[0] = '\0';
} else {
- Log(LOG_DEBUG,
+ LogDebug(
"Handling unknown mode \"%c%c\" from \"%s\" for \"%s\" ...",
set ? '+' : '-', *mode_ptr,
Client_ID(Origin), Client_ID(Target));
Client_ID(Target),
the_modes);
}
+
+ if (send_RPL_HOSTHIDDEN_MSG && Client_Conn(Target) > NONE) {
+ /* A new (cloaked) hostname must be announced */
+ IRC_WriteStrClientPrefix(Target, Origin,
+ RPL_HOSTHIDDEN_MSG,
+ Client_ID(Target),
+ Client_HostnameDisplayed(Target));
+
+ }
+
LogDebug("%s \"%s\": Mode change, now \"%s\".",
Client_TypeText(Target), Client_Mask(Target),
Client_Modes(Target));
}
- IRC_SetPenalty(Client, 1);
return ok;
} /* Client_Mode */
-
+/*
+ * Reply to a channel mode request.
+ *
+ * @param Origin The originator of the MODE command (prefix).
+ * @param Channel The channel of which the modes should be sent.
+ * @return CONNECTED or DISCONNECTED.
+ */
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;
+ if (!Channel_IsMemberOf(Channel, Origin)) {
+ /* Not a member: "simple" mode reply */
+ if (!IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
+ Client_ID(Origin), Channel_Name(Channel),
+ Channel_Modes(Channel)))
+ return DISCONNECTED;
+ } else {
+ /* 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++;
}
- mode_ptr++;
+ if (the_args[0])
+ strlcat(the_modes, the_args, sizeof(the_modes));
+
+ if (!IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
+ Client_ID(Origin), Channel_Name(Channel),
+ the_modes))
+ return DISCONNECTED;
}
- if (the_args[0])
- strlcat(the_modes, the_args, sizeof(the_modes));
- if (!IRC_WriteStrClient(Origin, RPL_CHANNELMODEIS_MSG,
- Client_ID(Origin), Channel_Name(Channel),
- the_modes))
- return DISCONNECTED;
#ifndef STRICT_RFC
+ /* Channel creation time */
if (!IRC_WriteStrClient(Origin, RPL_CREATIONTIME_MSG,
Client_ID(Origin), Channel_Name(Channel),
Channel_CreationTime(Channel)))
return CONNECTED;
}
-
/**
* Handle channel mode and channel-user mode changes
+ *
+ * @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 Channel The target channel of this MODE command.
+ * @return CONNECTED or DISCONNECTED.
*/
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, modeok, use_servermode;
+ bool connected, set, skiponce, retval, use_servermode,
+ is_halfop, is_op, is_admin, is_owner, is_machine, is_oper;
int mode_arg, arg_arg, mode_arg_count = 0;
CLIENT *client;
long l;
size_t len;
+ is_halfop = is_op = is_admin = is_owner = is_machine = is_oper = false;
+
if (Channel_IsModeless(Channel))
- return IRC_WriteStrClient(Client, ERR_NOCHANMODES_MSG,
+ return IRC_WriteErrClient(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);
- Channel_CheckAdminRights(Channel, Client, Origin,
- &onchannel, &modeok, &use_servermode);
+ /* Check if origin is oper and opers can use mode */
+ use_servermode = Conf_OperServerMode;
+ if(Client_HasMode(Client, 'o') && Conf_OperCanMode) {
+ is_oper = true;
+ }
- if (!onchannel && !modeok)
- return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
+ /* Check if client is a server/service */
+ if(Client_Type(Client) == CLIENT_SERVER ||
+ Client_Type(Client) == CLIENT_SERVICE) {
+ is_machine = true;
+ }
+
+ /* Check if client is member of channel or an oper or an server/service */
+ if(!Channel_IsMemberOf(Channel, Client) && !is_oper && !is_machine)
+ return IRC_WriteErrClient(Origin, ERR_NOTONCHANNEL_MSG,
Client_ID(Origin),
Channel_Name(Channel));
if (arg_arg >= Req->argc)
arg_arg = -1;
+ if(!is_machine && !is_oper) {
+ if (Channel_UserHasMode(Channel, Client, 'q'))
+ is_owner = true;
+ if (Channel_UserHasMode(Channel, Client, 'a'))
+ is_admin = true;
+ if (Channel_UserHasMode(Channel, Client, 'o'))
+ is_op = true;
+ if (Channel_UserHasMode(Channel, Client, 'h'))
+ is_halfop = true;
+ }
+
/* Validate modes */
x[0] = '\0';
argadd[0] = '\0';
client = NULL;
switch (*mode_ptr) {
/* --- Channel modes --- */
+ case 'R': /* Registered users only */
+ case 's': /* Secret channel */
+ case 'z': /* Secure connections only */
+ if(!is_oper && !is_machine && !is_owner &&
+ !is_admin && !is_op) {
+ connected = IRC_WriteErrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin), Channel_Name(Channel));
+ goto chan_exit;
+ }
case 'i': /* Invite only */
+ case 'V': /* Invite disallow */
+ case 'M': /* Only identified nicks can write */
case 'm': /* Moderated */
case 'n': /* Only members can write */
- case 'R': /* Registered users only */
- case 's': /* Secret channel */
+ case 'N': /* Can't change nick while on this channel */
+ case 'Q': /* No kicks */
case 't': /* Topic locked */
- case 'z': /* Secure connections only */
- if (modeok)
+ if(is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop)
x[0] = *mode_ptr;
else
- connected = IRC_WriteStrClient(Origin,
+ connected = IRC_WriteErrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin), Channel_Name(Channel));
break;
if (Mode_Limit_Reached(Client, mode_arg_count++))
goto chan_exit;
if (!set) {
- if (modeok)
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
x[0] = *mode_ptr;
- else
- connected = IRC_WriteStrClient(Origin,
+ if (Channel_HasMode(Channel, 'k'))
+ strlcpy(argadd, "*", sizeof(argadd));
+ if (arg_arg > mode_arg)
+ arg_arg++;
+ } else
+ connected = IRC_WriteErrClient(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));
- x[0] = *mode_ptr;
- } else {
- connected = IRC_WriteStrClient(Origin,
- ERR_CHANOPRIVSNEEDED_MSG,
+ if (arg_arg <= mode_arg) {
+ if (is_machine)
+ Log(LOG_ERR,
+ "Got MODE +k without key for \"%s\" from \"%s\"! Ignored.",
+ Channel_Name(Channel), Client_ID(Origin));
+ else
+ connected = IRC_WriteErrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
+ }
+ if (!Req->argv[arg_arg][0] || strchr(Req->argv[arg_arg], ' ')) {
+ if (is_machine)
+ Log(LOG_ERR,
+ "Got invalid key on MODE +k for \"%s\" from \"%s\"! Ignored.",
+ Channel_Name(Channel), Client_ID(Origin));
+ else
+ connected = IRC_WriteErrClient(Origin,
+ ERR_INVALIDMODEPARAM_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);
+ Channel_Name(Channel), 'k');
goto chan_exit;
}
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
+ 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_WriteErrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ }
+ Req->argv[arg_arg][0] = '\0';
+ arg_arg++;
break;
case 'l': /* Member limit */
if (Mode_Limit_Reached(Client, mode_arg_count++))
goto chan_exit;
if (!set) {
- if (modeok)
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop)
x[0] = *mode_ptr;
else
- connected = IRC_WriteStrClient(Origin,
+ connected = IRC_WriteErrClient(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,
+ if (arg_arg <= mode_arg) {
+ if (is_machine)
+ Log(LOG_ERR,
+ "Got MODE +l without limit for \"%s\" from \"%s\"! Ignored.",
+ Channel_Name(Channel), Client_ID(Origin));
+ else
+ connected = IRC_WriteErrClient(Origin,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Origin), Req->command);
+ goto chan_exit;
+ }
+ l = atol(Req->argv[arg_arg]);
+ if (l <= 0 || l >= 0xFFFF) {
+ if (is_machine)
+ Log(LOG_ERR,
+ "Got MODE +l with invalid limit for \"%s\" from \"%s\"! Ignored.",
+ Channel_Name(Channel), Client_ID(Origin));
+ else
+ connected = IRC_WriteErrClient(Origin,
+ ERR_INVALIDMODEPARAM_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);
+ Channel_Name(Channel), 'l');
goto chan_exit;
}
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
+ Channel_ModeDel(Channel, 'l');
+ Channel_SetMaxUsers(Channel, l);
+ snprintf(argadd, sizeof(argadd), "%ld", l);
+ x[0] = *mode_ptr;
+ } else {
+ connected = IRC_WriteErrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ }
+ Req->argv[arg_arg][0] = '\0';
+ arg_arg++;
break;
case 'O': /* IRC operators only */
- if (modeok) {
+ if (set) {
/* 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,
+ if(is_oper || is_machine)
+ x[0] = 'O';
+ else
+ connected = IRC_WriteErrClient(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;
+ } else if(is_oper || is_machine || is_owner ||
+ is_admin || is_op)
+ x[0] = 'O';
+ else
+ connected = IRC_WriteErrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ break;
case 'P': /* Persistent channel */
- if (modeok) {
+ if (set) {
/* 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,
+ if(is_oper || is_machine)
+ x[0] = 'P';
+ else
+ connected = IRC_WriteErrClient(Origin,
ERR_NOPRIVILEGES_MSG,
Client_ID(Origin));
- else
- x[0] = 'P';
- } else
- connected = IRC_WriteStrClient(Origin,
+ } else if(is_oper || is_machine || is_owner ||
+ is_admin || is_op)
+ x[0] = 'P';
+ else
+ connected = IRC_WriteErrClient(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,
+ case 'q': /* Owner */
+ case 'a': /* Channel admin */
+ if(!is_oper && !is_machine && !is_owner && !is_admin) {
+ connected = IRC_WriteErrClient(Origin,
+ ERR_CHANOPPRIVTOOLOW_MSG,
Client_ID(Origin),
Channel_Name(Channel));
goto chan_exit;
}
case 'o': /* Channel operator */
+ if(!is_oper && !is_machine && !is_owner &&
+ !is_admin && !is_op) {
+ connected = IRC_WriteErrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ goto chan_exit;
+ }
+ case 'h': /* Half Op */
+ if(!is_oper && !is_machine && !is_owner &&
+ !is_admin && !is_op) {
+ connected = IRC_WriteErrClient(Origin,
+ ERR_CHANOPRIVSNEEDED_MSG,
+ Client_ID(Origin),
+ Channel_Name(Channel));
+ goto chan_exit;
+ }
case 'v': /* Voice */
if (arg_arg > mode_arg) {
- if (modeok) {
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
client = Client_Search(Req->argv[arg_arg]);
if (client)
x[0] = *mode_ptr;
else
- connected = IRC_WriteStrClient(Client,
+ connected = IRC_WriteErrClient(Origin,
ERR_NOSUCHNICK_MSG,
- Client_ID(Client),
+ Client_ID(Origin),
Req->argv[arg_arg]);
} else {
- connected = IRC_WriteStrClient(Origin,
+ connected = IRC_WriteErrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
Req->argv[arg_arg][0] = '\0';
arg_arg++;
} else {
- connected = IRC_WriteStrClient(Origin,
+#ifdef STRICT_RFC
+ /* Report an error to the client, when a user
+ * mode should be changed but no nickname is
+ * given. But don't do it when not in "strict"
+ * mode, because most other servers don't do
+ * it as well and some clients send "wired"
+ * MODE commands like "MODE #chan -ooo nick". */
+ connected = IRC_WriteErrClient(Origin,
ERR_NEEDMOREPARAMS_MSG,
Client_ID(Origin), Req->command);
+#endif
goto chan_exit;
}
break;
goto chan_exit;
if (arg_arg > mode_arg) {
/* modify list */
- if (modeok) {
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
connected = set
? Add_To_List(*mode_ptr, Origin,
Client, Channel,
Client, Channel,
Req->argv[arg_arg]);
} else {
- connected = IRC_WriteStrClient(Origin,
+ connected = IRC_WriteErrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
break;
default:
if (Client_Type(Client) != CLIENT_SERVER) {
- Log(LOG_DEBUG,
+ LogDebug(
"Unknown mode \"%c%c\" from \"%s\" on %s!?",
set ? '+' : '-', *mode_ptr,
Client_ID(Origin), Channel_Name(Channel));
- connected = IRC_WriteStrClient(Origin,
+ connected = IRC_WriteErrClient(Origin,
ERR_UNKNOWNMODE_MSG,
Client_ID(Origin), *mode_ptr,
Channel_Name(Channel));
x[0] = '\0';
} else {
- Log(LOG_DEBUG,
+ LogDebug(
"Handling unknown mode \"%c%c\" from \"%s\" on %s ...",
set ? '+' : '-', *mode_ptr,
Client_ID(Origin), Channel_Name(Channel));
/* 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)))
+ if (!IRC_WriteErrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
+ Client_ID(Origin),
+ Client_ID(client),
+ Channel_Name(Channel)))
break;
-
continue;
}
if (Client_Type(Client) == CLIENT_SERVER) {
/* MODE requests for local channels from other servers
* are definitely invalid! */
- if (Channel_IsLocal(Channel)) {
+ if (Channel_IsLocal(Channel) && Client != Client_ThisServer()) {
Log(LOG_ALERT, "Got remote MODE command for local channel!? Ignored.");
return CONNECTED;
}
}
}
- IRC_SetPenalty(Client, 1);
return connected;
} /* Channel_Mode */
-
+/**
+ * Handler for the IRC "AWAY" 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_AWAY( CLIENT *Client, REQUEST *Req )
{
- assert( Client != NULL );
- assert( Req != NULL );
-
- if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- if(( Req->argc == 1 ) && (Req->argv[0][0] ))
- {
- 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
- {
- Client_ModeDel( Client, 'a' );
- IRC_WriteStrServersPrefix( Client, Client, "MODE %s :-a", Client_ID( Client ));
- return IRC_WriteStrClient( Client, RPL_UNAWAY_MSG, Client_ID( Client ));
+ assert (Client != NULL);
+ assert (Req != NULL);
+
+ if (Req->argc == 1 && Req->argv[0][0]) {
+ 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 {
+ 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.
*
Add_To_List(char what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel,
const char *Pattern)
{
- const char *mask;
+ char mask[MASK_LEN];
struct list_head *list = NULL;
long int current_count;
assert(Pattern != NULL);
assert(what == 'I' || what == 'b' || what == 'e');
- mask = Lists_MakeMask(Pattern);
+ Lists_MakeMask(Pattern, mask, sizeof(mask));
current_count = Lists_Count(Channel_GetListInvites(Channel))
+ Lists_Count(Channel_GetListExcepts(Channel))
+ Lists_Count(Channel_GetListBans(Channel));
return CONNECTED;
if (Client_Type(Client) == CLIENT_USER &&
current_count >= MAX_HNDL_CHANNEL_LISTS)
- return IRC_WriteStrClient(Client, ERR_LISTFULL_MSG,
+ return IRC_WriteErrClient(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))
+ if (!Channel_AddInvite(Channel, mask, false, Client_ID(Client)))
return CONNECTED;
break;
case 'b':
- if (!Channel_AddBan(Channel, mask))
+ if (!Channel_AddBan(Channel, mask, Client_ID(Client)))
return CONNECTED;
break;
case 'e':
- if (!Channel_AddExcept(Channel, mask))
+ if (!Channel_AddExcept(Channel, mask, Client_ID(Client)))
return CONNECTED;
break;
}
return Send_ListChange(true, what, Prefix, Client, Channel, mask);
}
-
/**
- * Delete entries from channel invite, ban and exeption lists.
+ * Delete entries from channel invite, ban and exception lists.
*
* @param what Can be 'I' for invite, 'b' for ban, and 'e' for exception list.
* @param Prefix The originator of the command.
Del_From_List(char what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel,
const char *Pattern)
{
- const char *mask;
+ char mask[MASK_LEN];
struct list_head *list = NULL;
assert(Client != NULL);
assert(Pattern != NULL);
assert(what == 'I' || what == 'b' || what == 'e');
- mask = Lists_MakeMask(Pattern);
+ Lists_MakeMask(Pattern, mask, sizeof(mask));
switch (what) {
case 'I':
return Send_ListChange(false, what, Prefix, Client, Channel, mask);
}
-
/**
* Send information about changed channel invite/ban/exception lists to clients.
*
return ok;
} /* Send_ListChange */
-
/* -eof- */