/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors.
+ * Copyright (c)2001-2015 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
*/
-#include "imp.h"
#include <assert.h>
#include <stdio.h>
#include <string.h>
+#include <strings.h>
+#include <time.h>
#include "ngircd.h"
#include "conn-func.h"
#include "conf.h"
#include "channel.h"
-#include "conn-encoding.h"
-#include "defines.h"
+#ifdef ICONV
+# include "conn-encoding.h"
+#endif
#include "irc-macros.h"
#include "irc-write.h"
#include "log.h"
#include "messages.h"
#include "parse.h"
#include "op.h"
-#include "tool.h"
-#include "exp.h"
#include "irc.h"
static char *Option_String PARAMS((CONN_ID Idx));
GLOBAL bool
IRC_KILL(CLIENT *Client, REQUEST *Req)
{
- CLIENT *prefix, *c;
- char reason[COMMAND_LEN], *msg;
- CONN_ID my_conn, conn;
+ CLIENT *prefix;
+ char reason[COMMAND_LEN];
assert (Client != NULL);
assert (Req != NULL);
else
strlcpy(reason, Req->argv[1], sizeof(reason));
- /* Inform other servers */
- IRC_WriteStrServersPrefix(Client, prefix, "KILL %s :%s",
- Req->argv[0], reason);
-
- /* Save ID of this connection */
- my_conn = Client_Conn( Client );
-
- /* Do we host such a client? */
- c = Client_Search( Req->argv[0] );
- if (c) {
- if (Client_Type(c) != CLIENT_USER
- && Client_Type(c) != CLIENT_GOTNICK) {
- /* Target of this KILL is not a regular user, this is
- * invalid! So we ignore this case if we received a
- * regular KILL from the network and try to kill the
- * client/connection anyway (but log an error!) if the
- * origin is the local server. */
-
- if (Client != Client_ThisServer()) {
- /* Invalid KILL received from remote */
- if (Client_Type(c) == CLIENT_SERVER)
- msg = ERR_CANTKILLSERVER_MSG;
- else
- msg = ERR_NOPRIVILEGES_MSG;
- return IRC_WriteErrClient(Client, msg,
- Client_ID(Client));
- }
-
- Log(LOG_ERR,
- "Got KILL for invalid client type: %d, \"%s\"!",
- Client_Type( c ), Req->argv[0] );
- }
-
- /* Kill the client NOW:
- * - Close the local connection (if there is one),
- * - Destroy the CLIENT structure for remote clients.
- * Note: Conn_Close() removes the CLIENT structure as well. */
- conn = Client_Conn( c );
- if(conn > NONE)
- Conn_Close(conn, NULL, reason, true);
- else
- Client_Destroy(c, NULL, reason, false);
- }
- else
- Log(LOG_NOTICE, "Client with nick \"%s\" is unknown here.",
- Req->argv[0]);
-
- /* Are we still connected or were we killed, too? */
- if (my_conn > NONE && Conn_GetClient(my_conn))
- return CONNECTED;
- else
- return DISCONNECTED;
-} /* IRC_KILL */
+ return IRC_KillClient(Client, prefix, Req->argv[0], reason);
+}
/**
* Handler for the IRC "NOTICE" command.
assert(Client != NULL);
assert(Req != NULL);
- IRC_SetPenalty(Client, 3);
-
_IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
_IRC_GET_TARGET_SERVER_OR_RETURN_(target, Req, 0, from)
PACKAGE_VERSION, Client_ID(target),
Client_ID(Client_NextHop(target)),
Option_String(idx2),
- time(NULL) - Conn_StartTime(idx2),
+ (long)(time(NULL) - Conn_StartTime(idx2)),
Conn_SendQ(idx), Conn_SendQ(idx2)))
return DISCONNECTED;
assert(Client != NULL);
assert(Req != NULL);
- IRC_SetPenalty(Client, 2);
-
if ((Req->argc == 0 && array_bytes(&Conf_Helptext) > 0)
|| (Req->argc >= 1 && strcasecmp(Req->argv[0], "Commands") != 0)) {
/* Help text available and requested */
return CONNECTED;
} /* IRC_HELP */
+/**
+ * Kill an client identified by its nick name.
+ *
+ * Please note that after killig a client, its CLIENT cond CONNECTION
+ * structures are invalid. So the caller must make sure on its own not to
+ * access data of probably killed clients after calling this function!
+ *
+ * @param Client The client from which the command leading to the KILL has
+ * been received, or NULL. The KILL will no be forwarded in this
+ * direction. Only relevant when From is set, too.
+ * @param From The client from which the command originated, or NULL for
+ the local server.
+ * @param Nick The nick name to kill.
+ * @param Reason Text to send as reason to the client and other servers.
+ */
+GLOBAL bool
+IRC_KillClient(CLIENT *Client, CLIENT *From, const char *Nick, const char *Reason)
+{
+ const char *msg;
+ CONN_ID my_conn = NONE, conn;
+ CLIENT *c;
+
+ assert(Nick != NULL);
+ assert(Reason != NULL);
+
+ /* Do we know such a client in the network? */
+ c = Client_Search(Nick);
+ if (!c) {
+ LogDebug("Client with nick \"%s\" is unknown, not forwaring.", Nick);
+ return CONNECTED;
+ }
+
+ /* Inform other servers */
+ IRC_WriteStrServersPrefix(From ? Client : NULL,
+ From ? From : Client_ThisServer(),
+ "KILL %s :%s", Nick, Reason);
+
+ if (Client_Type(c) != CLIENT_USER && Client_Type(c) != CLIENT_GOTNICK) {
+ /* Target of this KILL is not a regular user, this is
+ * invalid! So we ignore this case if we received a
+ * regular KILL from the network and try to kill the
+ * client/connection anyway (but log an error!) if the
+ * origin is the local server. */
+
+ if (Client != Client_ThisServer()) {
+ /* Invalid KILL received from remote */
+ if (Client_Type(c) == CLIENT_SERVER)
+ msg = ERR_CANTKILLSERVER_MSG;
+ else
+ msg = ERR_NOPRIVILEGES_MSG;
+ return IRC_WriteErrClient(Client, msg, Client_ID(Client));
+ }
+
+ Log(LOG_ERR,
+ "Got KILL for invalid client type: %d, \"%s\"!",
+ Client_Type(c), Nick);
+ }
+
+ /* Save ID of this connection */
+ if (Client)
+ my_conn = Client_Conn(Client);
+
+ /* Kill the client NOW:
+ * - Close the local connection (if there is one),
+ * - Destroy the CLIENT structure for remote clients.
+ * Note: Conn_Close() removes the CLIENT structure as well. */
+ conn = Client_Conn(c);
+ if(conn > NONE)
+ Conn_Close(conn, NULL, Reason, true);
+ else
+ Client_Destroy(c, NULL, Reason, false);
+
+ /* Are we still connected or were we killed, too? */
+ if (my_conn > NONE && Conn_GetClient(my_conn))
+ return CONNECTED;
+ else
+ return DISCONNECTED;
+}
+
/**
* Send help for a given topic to the client.
*
#endif
{
static char option_txt[8];
-#ifdef ZLIB
UINT16 options;
-#endif
assert(Idx != NONE);
if(options & CONN_ZIP) /* zlib compression enabled */
strlcat(option_txt, "z", sizeof(option_txt));
#endif
- LogDebug(" *** %d: %d = %s", Idx, options, option_txt);
return option_txt;
} /* Option_String */
+/**
+ * Send a message to target(s).
+ *
+ * This function is used by IRC_{PRIVMSG|NOTICE|SQUERY} to actualy
+ * send the message(s).
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @param ForceType Required type of the destination of the message(s).
+ * @param SendErrors Whether to report errors back to the client or not.
+ * @return CONNECTED or DISCONNECTED.
+ */
static bool
Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
{
CL2CHAN *cl2chan;
CHANNEL *chan;
char *currentTarget = Req->argv[0];
- char *lastCurrentTarget = NULL;
+ char *strtok_last = NULL;
char *message = NULL;
+ char *targets[MAX_HNDL_TARGETS];
+ int i, target_nr = 0;
assert(Client != NULL);
assert(Req != NULL);
if (Req->argc > 2) {
if (!SendErrors)
return CONNECTED;
- IRC_SetPenalty(Client, 2);
return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
Client_ID(Client), Req->command);
}
- if (Client_Type(Client) == CLIENT_SERVER)
+ if (Client_Type(Client) == CLIENT_SERVER && Req->prefix)
from = Client_Search(Req->prefix);
else
from = Client;
message = Req->argv[1];
/* handle msgtarget = msgto *("," msgto) */
- currentTarget = strtok_r(currentTarget, ",", &lastCurrentTarget);
+ currentTarget = strtok_r(currentTarget, ",", &strtok_last);
ngt_UpperStr(Req->command);
+ /* Please note that "currentTarget" is NULL when the target contains
+ * the separator character only, e. g. "," or ",,,," etc.! */
while (currentTarget) {
+ /* Make sure that there hasn't been such a target already: */
+ targets[target_nr++] = currentTarget;
+ for(i = 0; i < target_nr - 1; i++) {
+ if (strcasecmp(currentTarget, targets[i]) == 0)
+ goto send_next_target;
+ }
+
/* Check for and handle valid <msgto> of form:
* RFC 2812 2.3.1:
* msgto = channel / ( user [ "%" host ] "@" servername )
return DISCONNECTED;
} else if (ForceType != CLIENT_SERVICE
&& (chan = Channel_Search(currentTarget))) {
+ /* Target is a channel */
if (!Channel_Write(chan, from, Client, Req->command,
SendErrors, message))
return DISCONNECTED;
} else if (ForceType != CLIENT_SERVICE
- /* $#: server/target mask, RFC 2812, sec. 3.3.1 */
&& strchr("$#", currentTarget[0])
&& strchr(currentTarget, '.')) {
- /* targetmask */
+ /* $#: server/host mask, RFC 2812, sec. 3.3.1 */
if (!Send_Message_Mask(from, Req->command, currentTarget,
message, SendErrors))
return DISCONNECTED;
}
send_next_target:
- currentTarget = strtok_r(NULL, ",", &lastCurrentTarget);
- if (currentTarget)
- Conn_SetPenalty(Client_Conn(Client), 1);
+ currentTarget = strtok_r(NULL, ",", &strtok_last);
+ if (!currentTarget)
+ break;
+
+ Conn_SetPenalty(Client_Conn(Client), 1);
+
+ if (target_nr >= MAX_HNDL_TARGETS) {
+ /* Too many targets given! */
+ return IRC_WriteErrClient(Client,
+ ERR_TOOMANYTARGETS_MSG,
+ currentTarget);
+ }
}
return CONNECTED;
} /* Send_Message */
+/**
+ * Send a message to "target mask" target(s).
+ *
+ * See RFC 2812, sec. 3.3.1 for details.
+ *
+ * @param from The client from which this command has been received.
+ * @param command The command to use (PRIVMSG, NOTICE, ...).
+ * @param targetMask The "target mask" (will be verified by this function).
+ * @param message The message to send.
+ * @param SendErrors Whether to report errors back to the client or not.
+ * @return CONNECTED or DISCONNECTED.
+ */
static bool
Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
char * message, bool SendErrors)
* dot (".") and no wildcards ("*", "?") following the last one.
*/
check_wildcards = strrchr(targetMask, '.');
- assert(check_wildcards != NULL);
- if (check_wildcards &&
- check_wildcards[strcspn(check_wildcards, "*?")])
- {
+ if (!check_wildcards || check_wildcards[strcspn(check_wildcards, "*?")]) {
if (!SendErrors)
return true;
- return IRC_WriteErrClient(from, ERR_WILDTOPLEVEL, targetMask);
+ return IRC_WriteErrClient(from, ERR_WILDTOPLEVEL_MSG,
+ targetMask);
}
- /* #: hostmask, see RFC 2812, sec. 3.3.1 */
if (targetMask[0] == '#') {
+ /* #: hostmask, see RFC 2812, sec. 3.3.1 */
for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
if (Client_Type(cl) != CLIENT_USER)
continue;
return false;
}
} else {
- assert(targetMask[0] == '$'); /* $: server mask, see RFC 2812, sec. 3.3.1 */
+ /* $: server mask, see RFC 2812, sec. 3.3.1 */
+ assert(targetMask[0] == '$');
for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
if (Client_Type(cl) != CLIENT_USER)
continue;
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