/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
+ * Copyright (c)2001-2013 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
#include "defines.h"
#include "conn.h"
#include "channel.h"
+#include "irc-macros.h"
#include "irc-write.h"
#include "lists.h"
#include "log.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 Send_ListChange PARAMS((const char *Mode, CLIENT *Prefix,
- CLIENT *Client, CHANNEL *Channel, const char *Mask));
+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((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").
+ * 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)
/* 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.
+ *
+ * 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
+Mode_Limit_Reached(CLIENT *Client, int Count)
+{
+ 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.
+ * @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';
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 '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,
+ switch (*mode_ptr) {
+ case 'b': /* Block private msgs */
+ 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_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, 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:
- 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 );
+ break;
+ case 'B': /* Bot */
+ if (Client_HasMode(Client, 'r'))
+ 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!) */
+ if (!set || Client_Type(Client) == CLIENT_SERVER
+ || Client_OperByMe(Origin))
+ x[0] = 'c';
+ else
+ 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_WriteErrClient(Origin,
+ ERR_NOPRIVILEGES_MSG,
+ Client_ID(Origin));
+ break;
+ case 'q': /* KICK-protected user */
+ if (!set || Client_Type(Client) == CLIENT_SERVER
+ || Client_OperByMe(Origin))
+ x[0] = 'q';
+ else
+ ok = IRC_WriteErrClient(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_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_WriteErrClient(Origin,
+ ERR_RESTRICTED_MSG,
+ Client_ID(Origin));
+ else if (!set || Conf_CloakHostModeX[0]
+ || Client_Type(Client) == CLIENT_SERVER
+ || Client_OperByMe(Client)) {
+ 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,
+ "Unknown mode \"%c%c\" from \"%s\"!?",
+ set ? '+' : '-', *mode_ptr,
+ Client_ID(Origin));
+ ok = IRC_WriteErrClient(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;
strlcat(the_modes, x, sizeof(the_modes));
}
}
-client_exit:
/* Are there changed modes? */
if (the_modes[1]) {
- /* Remoce needless action modifier characters */
+ /* Remove needless action modifier characters */
len = strlen(the_modes) - 1;
if (the_modes[len] == '+' || the_modes[len] == '-')
the_modes[len] = '\0';
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));
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)
{
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;
- int mode_arg, arg_arg;
+ 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_OperByMe(Client) && Conf_OperCanMode) {
+ is_oper = true;
+ }
+
+ /* Check if client is a server/service */
+ if(Client_Type(Client) == CLIENT_SERVER ||
+ Client_Type(Client) == CLIENT_SERVICE) {
+ is_machine = true;
+ }
- if (!onchannel && !modeok)
- return IRC_WriteStrClient(Origin, ERR_NOTONCHANNEL_MSG,
+ /* 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));
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
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 's': /* Secret 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;
case 'k': /* Channel key */
+ 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) {
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
Channel_ModeDel(Channel, 'k');
Channel_SetKey(Channel,
Req->argv[arg_arg]);
sizeof(argadd));
x[0] = *mode_ptr;
} 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
+ /* Only send error message in "strict" mode,
+ * this is how ircd2.11 and others behave ... */
+ connected = IRC_WriteErrClient(Origin,
ERR_NEEDMOREPARAMS_MSG,
Client_ID(Origin), Req->command);
+#endif
goto chan_exit;
}
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) {
+ if (is_oper || is_machine || is_owner ||
+ is_admin || is_op || is_halfop) {
l = atol(Req->argv[arg_arg]);
if (l > 0 && l < 0xFFFF) {
Channel_ModeDel(Channel, 'l');
x[0] = *mode_ptr;
}
} 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
+ /* Only send error message in "strict" mode,
+ * this is how ircd2.11 and others behave ... */
+ connected = IRC_WriteErrClient(Origin,
ERR_NEEDMOREPARAMS_MSG,
Client_ID(Origin), Req->command);
+#endif
goto chan_exit;
}
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 '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;
/* --- Channel lists --- */
case 'I': /* Invite lists */
case 'b': /* Ban lists */
+ case 'e': /* Channel exception lists */
+ if (Mode_Limit_Reached(Client, mode_arg_count++))
+ 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_Ban_Invite(*mode_ptr, Origin,
+ ? Add_To_List(*mode_ptr, Origin,
Client, Channel,
Req->argv[arg_arg])
- : Del_Ban_Invite(*mode_ptr, Origin,
+ : Del_From_List(*mode_ptr, Origin,
Client, Channel,
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 {
- if (*mode_ptr == 'I')
+ switch (*mode_ptr) {
+ case 'I':
Channel_ShowInvites(Origin, Channel);
- else
+ break;
+ case 'b':
Channel_ShowBans(Origin, Channel);
+ break;
+ case 'e':
+ Channel_ShowExcepts(Origin, Channel);
+ break;
+ }
}
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 (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_WriteErrClient(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 (!connected)
break;
/* 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;
}
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.
+ *
+ * @param what Can be 'I' for invite, 'b' for ban, and 'e' for exception 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;
-
- 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;
+ char mask[MASK_LEN];
+ struct list_head *list = NULL;
+ long int current_count;
+
+ assert(Client != NULL);
+ assert(Channel != NULL);
+ assert(Pattern != NULL);
+ assert(what == 'I' || what == 'b' || what == 'e');
+
+ Lists_MakeMask(Pattern, mask, sizeof(mask));
+ current_count = Lists_Count(Channel_GetListInvites(Channel))
+ + Lists_Count(Channel_GetListExcepts(Channel))
+ + Lists_Count(Channel_GetListBans(Channel));
+
+ switch(what) {
+ case 'I':
+ list = Channel_GetListInvites(Channel);
+ break;
+ case 'b':
+ list = Channel_GetListBans(Channel);
+ break;
+ case 'e':
+ list = Channel_GetListExcepts(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 &&
+ current_count >= MAX_HNDL_CHANNEL_LISTS)
+ 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))
+ return CONNECTED;
+ break;
+ case 'b':
+ if (!Channel_AddBan(Channel, mask))
+ return CONNECTED;
+ break;
+ case 'e':
+ if (!Channel_AddExcept(Channel, mask))
+ return CONNECTED;
+ break;
+ }
+ return Send_ListChange(true, what, Prefix, Client, Channel, mask);
}
-
+/**
+ * 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.
+ * @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;
+ char mask[MASK_LEN];
+ struct list_head *list = NULL;
- assert( Client != NULL );
- assert( Channel != NULL );
- assert( Pattern != NULL );
- assert(what == 'I' || what == 'b');
+ assert(Client != NULL);
+ assert(Channel != NULL);
+ assert(Pattern != NULL);
+ assert(what == 'I' || what == 'b' || what == 'e');
- mask = Lists_MakeMask( Pattern );
+ Lists_MakeMask(Pattern, mask, sizeof(mask));
- 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;
+ case 'e':
+ list = Channel_GetListExcepts(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 invite/ban/exception 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(const 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)
{
- bool ok;
+ bool ok = true;
- if( Client_Type( Client ) == CLIENT_USER )
- {
- /* send confirmation to client */
- ok = IRC_WriteStrClientPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
- }
- else ok = true;
+ /* 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);
/* to other servers */
- IRC_WriteStrServersPrefix( Client, Prefix, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
+ IRC_WriteStrServersPrefix(Client, Prefix, "MODE %s %c%c %s",
+ Channel_Name(Channel), IsAdd ? '+' : '-',
+ ModeChar, Mask);
/* and local users in channel */
- IRC_WriteStrChannelPrefix( Client, Channel, Prefix, false, "MODE %s %s %s", Channel_Name( Channel ), Mode, Mask );
-
+ IRC_WriteStrChannelPrefix(Client, Channel, Prefix, false,
+ "MODE %s %c%c %s", Channel_Name(Channel),
+ IsAdd ? '+' : '-', ModeChar, Mask );
+
return ok;
} /* Send_ListChange */
-
/* -eof- */
projects / ngircd-alex.git / blobdiff