/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2012 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.
- *
- * Login and logout
*/
-
#include "portab.h"
+/**
+ * @file
+ * Login and logout
+ */
+
#include "imp.h"
#include <assert.h>
-#include <stdio.h>
+#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
-#include <signal.h>
-#include <unistd.h>
-#include "ngircd.h"
#include "conn-func.h"
+#include "class.h"
#include "conf.h"
#include "channel.h"
-#include "io.h"
#include "log.h"
+#include "login.h"
#include "messages.h"
-#include "pam.h"
#include "parse.h"
#include "irc.h"
#include "irc-info.h"
#include "exp.h"
#include "irc-login.h"
+static void Kill_Nick PARAMS((char *Nick, char *Reason));
+static void Change_Nick PARAMS((CLIENT * Origin, CLIENT * Target, char *NewNick,
+ bool InformClient));
-static bool Hello_User PARAMS(( CLIENT *Client ));
-static bool Hello_User_PostAuth PARAMS(( CLIENT *Client ));
-static void Kill_Nick PARAMS(( char *Nick, char *Reason ));
-static void Introduce_Client PARAMS((CLIENT *To, CLIENT *Client, int Type));
-static void Reject_Client PARAMS((CLIENT *Client));
-
-static void cb_introduceClient PARAMS((CLIENT *Client, CLIENT *Prefix,
- void *i));
-
-#ifdef PAM
-static void cb_Read_Auth_Result PARAMS((int r_fd, UNUSED short events));
-#endif
/**
- * Handler for the IRC command "PASS".
+ * Handler for the IRC "PASS" command.
+ *
* See RFC 2813 section 4.1.1, and RFC 2812 section 3.1.1.
+ *
+ * @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_PASS( CLIENT *Client, REQUEST *Req )
Client_ID(Client));
}
- Client_SetPassword(Client, Req->argv[0]);
+ Conn_SetPassword(Client_Conn(Client), Req->argv[0]);
/* Protocol version */
if (Req->argc >= 2 && strlen(Req->argv[1]) >= 4) {
if (type && strcmp(type, PROTOIRCPLUS) == 0) {
/* The peer seems to be a server which supports the
* IRC+ protocol (see doc/Protocol.txt). */
- serverver = ptr + 1;
- flags = strchr(serverver, ':');
+ serverver = ptr ? ptr + 1 : "?";
+ flags = strchr(ptr ? serverver : impl, ':');
if (flags) {
*flags = '\0';
flags++;
} else
flags = "";
Log(LOG_INFO,
- "Peer announces itself as %s-%s using protocol %d.%d/IRC+ (flags: \"%s\").",
- impl, serverver, protohigh, protolow, flags);
+ "Peer on conenction %d announces itself as %s-%s using protocol %d.%d/IRC+ (flags: \"%s\").",
+ Client_Conn(Client), impl, serverver,
+ protohigh, protolow, flags);
} else {
/* The peer seems to be a server supporting the
* "original" IRC protocol (RFC 2813). */
else
flags = "";
Log(LOG_INFO,
- "Peer announces itself as \"%s\" using protocol %d.%d (flags: \"%s\").",
- impl, protohigh, protolow, flags);
+ "Peer on connection %d announces itself as \"%s\" using protocol %d.%d (flags: \"%s\").",
+ Client_Conn(Client), impl,
+ protohigh, protolow, flags);
}
Client_SetFlags(Client, flags);
}
/**
- * IRC "NICK" command.
+ * Handler for the IRC "NICK" command.
+ *
+ * See RFC 2812, 3.1.2 "Nick message", and RFC 2813, 4.1.3 "Nick".
+ *
* This function implements the IRC command "NICK" which is used to register
* with the server, to change already registered nicknames and to introduce
* new users which are connected to other servers.
+ *
+ * @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_NICK( CLIENT *Client, REQUEST *Req )
/* Register new nickname of this client */
Client_SetID( target, Req->argv[0] );
+#ifndef STRICT_RFC
+ if (Conf_AuthPing) {
+ Conn_SetAuthPing(Client_Conn(Client), rand());
+ IRC_WriteStrClient(Client, "PING :%ld",
+ Conn_GetAuthPing(Client_Conn(Client)));
+ LogDebug("Connection %d: sent AUTH PING %ld ...",
+ Client_Conn(Client),
+ Conn_GetAuthPing(Client_Conn(Client)));
+ }
+#endif
+
/* If we received a valid USER command already then
* register the new client! */
if( Client_Type( Client ) == CLIENT_GOTUSER )
- return Hello_User( Client );
+ return Login_User( Client );
else
Client_SetType( Client, CLIENT_GOTNICK );
} else {
/* Nickname change */
- if (Client_Conn(target) > NONE) {
- /* Local client */
- Log(LOG_INFO,
- "%s \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".",
- Client_TypeText(target), Client_Mask(target),
- Client_Conn(target), Client_ID(target),
- Req->argv[0]);
- Conn_UpdateIdle(Client_Conn(target));
- } else {
- /* Remote client */
- LogDebug("%s \"%s\" changed nick: \"%s\" -> \"%s\".",
- Client_TypeText(target),
- Client_Mask(target), Client_ID(target),
- Req->argv[0]);
- }
-
- /* Inform all users and servers (which have to know)
- * of this nickname change */
- if( Client_Type( Client ) == CLIENT_USER )
- IRC_WriteStrClientPrefix( Client, Client,
- "NICK :%s",
- Req->argv[0] );
- IRC_WriteStrServersPrefix( Client, target,
- "NICK :%s", Req->argv[0] );
- IRC_WriteStrRelatedPrefix( target, target, false,
- "NICK :%s", Req->argv[0] );
-
- /* Register old nickname for WHOWAS queries */
- Client_RegisterWhowas( target );
-
- /* Save new nickname */
- Client_SetID( target, Req->argv[0] );
-
- IRC_SetPenalty( target, 2 );
+ Change_Nick(Client, target, Req->argv[0],
+ Client_Type(Client) == CLIENT_USER ? true : false);
+ IRC_SetPenalty(target, 2);
}
return CONNECTED;
Client_Mask(c));
Client_SetType(c, CLIENT_GOTNICK);
} else
- Introduce_Client(Client, c, CLIENT_USER);
+ Client_Introduce(Client, c, CLIENT_USER);
return CONNECTED;
}
/**
- * Handler for the IRC command "USER".
+ * Handler for the IRC "SVSNICK" 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_SVSNICK(CLIENT *Client, REQUEST *Req)
+{
+ CLIENT *from, *target;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (Req->argc != 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* Search the originator */
+ from = Client_Search(Req->prefix);
+ if (!from)
+ from = Client;
+
+ /* Search the target */
+ target = Client_Search(Req->argv[0]);
+ if (!target || Client_Type(target) != CLIENT_USER) {
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->argv[0]);
+ }
+
+ if (Client_Conn(target) <= NONE) {
+ /* We have to forward the message to the server handling
+ * this user; this is required to make sure all servers
+ * in the network do follow the nick name change! */
+ return IRC_WriteStrClientPrefix(Client_NextHop(target), from,
+ "SVSNICK %s %s",
+ Req->argv[0], Req->argv[1]);
+ }
+
+ /* Make sure that the new nickname is valid */
+ if (!Client_CheckNick(from, Req->argv[1]))
+ return CONNECTED;
+
+ Change_Nick(from, target, Req->argv[1], true);
+ return CONNECTED;
+}
+
+/**
+ * Handler for the IRC "USER" command.
+ *
+ * See RFC 2812, 3.1.3 "User message".
+ *
+ * @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_USER(CLIENT * Client, REQUEST * Req)
{
CLIENT *c;
-#ifdef IDENTAUTH
char *ptr;
-#endif
assert(Client != NULL);
assert(Req != NULL);
Client_ID(Client),
Req->command);
- /* User name */
+ /* User name: only alphanumeric characters and limited
+ punctuation is allowed.*/
+ ptr = Req->argv[0];
+ while (*ptr) {
+ if (!isalnum((int)*ptr) &&
+ *ptr != '+' && *ptr != '-' &&
+ *ptr != '.' && *ptr != '_') {
+ Conn_Close(Client_Conn(Client), NULL,
+ "Invalid user name", true);
+ return DISCONNECTED;
+ }
+ ptr++;
+ }
+
#ifdef IDENTAUTH
ptr = Client_User(Client);
if (!ptr || !*ptr || *ptr == '~')
LogDebug("Connection %d: got valid USER command ...",
Client_Conn(Client));
if (Client_Type(Client) == CLIENT_GOTNICK)
- return Hello_User(Client);
+ return Login_User(Client);
else
Client_SetType(Client, CLIENT_GOTUSER);
return CONNECTED;
/* RFC 1459 style user registration?
* Introduce client to network: */
if (Client_Type(c) == CLIENT_GOTNICK)
- Introduce_Client(Client, c, CLIENT_USER);
+ Client_Introduce(Client, c, CLIENT_USER);
return CONNECTED;
} else if (Client_Type(Client) == CLIENT_USER) {
/**
- * Handler for the IRC command "SERVICE".
+ * Handler for the IRC "SERVICE" command.
+ *
* This function implements IRC Services registration using the SERVICE command
* defined in RFC 2812 3.1.6 and RFC 2813 4.1.4.
+ *
* At the moment ngIRCd doesn't support directly linked services, so this
* function returns ERR_ERRONEUSNICKNAME when the SERVICE command has not been
* received from a peer server.
+ *
+ * @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_SERVICE(CLIENT *Client, REQUEST *Req)
hops = atoi(Req->argv[4]);
info = Req->argv[5];
- /* Validate service name ("nick name") */
+ /* Validate service name ("nickname") */
c = Client_Search(nick);
if(c) {
- /* Nick name collission: disconnect (KILL) both clients! */
+ /* Nickname collission: disconnect (KILL) both clients! */
Log(LOG_ERR, "Server %s introduces already registered service \"%s\"!",
Client_ID(Client), nick);
Kill_Nick(nick, "Nick collision");
return CONNECTED;
}
- Introduce_Client(Client, c, CLIENT_SERVICE);
+ Client_Introduce(Client, c, CLIENT_SERVICE);
return CONNECTED;
} /* IRC_SERVICE */
/**
- * Handler for the IRC command "WEBIRC".
- * Syntax: WEBIRC <password> <username> <real-hostname> <real-IP-address>
+ * Handler for the IRC "WEBIRC" command.
+ *
+ * See doc/Protocol.txt, section II.4:
+ * "Update webchat/proxy client information".
+ *
+ * @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_WEBIRC(CLIENT *Client, REQUEST *Req)
} /* IRC_WEBIRC */
+/**
+ * Handler for the IRC "QUIT" command.
+ *
+ * See RFC 2812, 3.1.7 "Quit", and RFC 2813, 4.1.5 "Quit".
+ *
+ * @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_QUIT( CLIENT *Client, REQUEST *Req )
{
CLIENT *target;
char quitmsg[LINE_LEN];
- assert( Client != NULL );
- assert( Req != NULL );
+ assert(Client != NULL);
+ assert(Req != NULL);
/* Wrong number of arguments? */
- 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);
if (Req->argc == 1)
strlcpy(quitmsg, Req->argv[0], sizeof quitmsg);
- if ( Client_Type( Client ) == CLIENT_SERVER )
- {
+ if (Client_Type(Client) == CLIENT_SERVER) {
/* Server */
- target = Client_Search( Req->prefix );
- if( ! target )
- {
- Log( LOG_WARNING, "Got QUIT from %s for unknown client!?", Client_ID( Client ));
+ target = Client_Search(Req->prefix);
+ if (!target) {
+ Log(LOG_WARNING,
+ "Got QUIT from %s for unknown client!?",
+ Client_ID(Client));
return CONNECTED;
}
- Client_Destroy( target, "Got QUIT command.", Req->argc == 1 ? quitmsg : NULL, true);
-
- return CONNECTED;
- }
- else
- {
+ if (target != Client) {
+ Client_Destroy(target, "Got QUIT command",
+ Req->argc == 1 ? quitmsg : NULL, true);
+ return CONNECTED;
+ } else {
+ Conn_Close(Client_Conn(Client), "Got QUIT command",
+ Req->argc == 1 ? quitmsg : NULL, true);
+ return DISCONNECTED;
+ }
+ } else {
if (Req->argc == 1 && quitmsg[0] != '\"') {
/* " " to avoid confusion */
strlcpy(quitmsg, "\"", sizeof quitmsg);
}
/* User, Service, or not yet registered */
- Conn_Close( Client_Conn( Client ), "Got QUIT command.", Req->argc == 1 ? quitmsg : NULL, true);
+ Conn_Close(Client_Conn(Client), "Got QUIT command",
+ Req->argc == 1 ? quitmsg : NULL, true);
return DISCONNECTED;
}
} /* IRC_QUIT */
+#ifndef STRICT_RFC
+
+/**
+ * Handler for HTTP command, e.g. GET and POST
+ *
+ * We handle these commands here to avoid the quite long timeout when
+ * some user tries to access this IRC daemon using an web browser ...
+ *
+ * @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_QUIT_HTTP( CLIENT *Client, REQUEST *Req )
+{
+ Req->argc = 1;
+ Req->argv[0] = "Oops, HTTP request received? This is IRC!";
+ return IRC_QUIT(Client, Req);
+} /* IRC_QUIT_HTTP */
+
+#endif
+
+
+/**
+ * Handler for the IRC "PING" command.
+ *
+ * See RFC 2812, 3.7.2 "Ping message".
+ *
+ * @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_PING(CLIENT *Client, REQUEST *Req)
{
} /* IRC_PING */
+/**
+ * Handler for the IRC "PONG" command.
+ *
+ * See RFC 2812, 3.7.3 "Pong message".
+ *
+ * @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_PONG(CLIENT *Client, REQUEST *Req)
{
CLIENT *target, *from;
+ CONN_ID conn;
+#ifndef STRICT_RFC
+ long auth_ping;
+#endif
char *s;
assert(Client != NULL);
assert(Req != NULL);
/* Wrong number of arguments? */
- if (Req->argc < 1)
- return IRC_WriteStrClient(Client, ERR_NOORIGIN_MSG,
- Client_ID(Client));
- if (Req->argc > 2)
- return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
- Client_ID(Client), Req->command);
+ if (Req->argc < 1) {
+ if (Client_Type(Client) == CLIENT_USER)
+ return IRC_WriteStrClient(Client, ERR_NOORIGIN_MSG,
+ Client_ID(Client));
+ else
+ return CONNECTED;
+ }
+ if (Req->argc > 2) {
+ if (Client_Type(Client) == CLIENT_USER)
+ return IRC_WriteStrClient(Client,
+ ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client),
+ Req->command);
+ else
+ return CONNECTED;
+ }
/* Forward? */
if (Req->argc == 2 && Client_Type(Client) == CLIENT_SERVER) {
/* The connection timestamp has already been updated when the data has
* been read from so socket, so we don't need to update it here. */
-#ifdef DEBUG
- if (Client_Conn(Client) > NONE)
- Log(LOG_DEBUG,
- "Connection %d: received PONG. Lag: %ld seconds.",
- Client_Conn(Client),
- time(NULL) - Conn_LastPing(Client_Conn(Client)));
- else
- Log(LOG_DEBUG,
- "Connection %d: received PONG.", Client_Conn(Client));
-#endif
- return CONNECTED;
-} /* IRC_PONG */
-
-static bool
-Hello_User(CLIENT * Client)
-{
-#ifdef PAM
- int pipefd[2], result;
- CONN_ID conn;
- pid_t pid;
-
- assert(Client != NULL);
conn = Client_Conn(Client);
- pid = Proc_Fork(Conn_GetProcStat(conn), pipefd, cb_Read_Auth_Result);
- if (pid > 0) {
- LogDebug("Authenticator for connection %d created (PID %d).",
- conn, pid);
- return CONNECTED;
- } else {
- /* Sub process */
- Log_Init_Subprocess("Auth");
- if (Conf_NoPAM) {
- result = (Client_Password(Client)[0] == '\0');
+#ifndef STRICT_RFC
+ /* Check authentication PING-PONG ... */
+ auth_ping = Conn_GetAuthPing(conn);
+ if (auth_ping) {
+ LogDebug("AUTH PONG: waiting for token \"%ld\", got \"%s\" ...",
+ auth_ping, Req->argv[0]);
+ if (auth_ping == atoi(Req->argv[0])) {
+ Conn_SetAuthPing(conn, 0);
+ if (Client_Type(Client) == CLIENT_WAITAUTHPING)
+ Login_User(Client);
} else
- result = PAM_Authenticate(Client);
- write(pipefd[1], &result, sizeof(result));
- Log_Exit_Subprocess("Auth");
- exit(0);
+ if (!IRC_WriteStrClient(Client,
+ "To connect, type /QUOTE PONG %ld",
+ auth_ping))
+ return DISCONNECTED;
}
-#else
- assert(Client != NULL);
-
- /* Check global server password ... */
- if (strcmp(Client_Password(Client), Conf_ServerPwd) != 0) {
- /* Bad password! */
- Reject_Client(Client);
- return DISCONNECTED;
- }
- return Hello_User_PostAuth(Client);
#endif
-}
-
-#ifdef PAM
-
-/**
- * Read result of the authenticatior sub-process from pipe
- */
-static void
-cb_Read_Auth_Result(int r_fd, UNUSED short events)
-{
- CONN_ID conn;
- CLIENT *client;
- int result;
- size_t len;
- PROC_STAT *proc;
-
- LogDebug("Auth: Got callback on fd %d, events %d", r_fd, events);
- conn = Conn_GetFromProc(r_fd);
- if (conn == NONE) {
- /* Ops, none found? Probably the connection has already
- * been closed!? We'll ignore that ... */
- io_close(r_fd);
- LogDebug("Auth: Got callback for unknown connection!?");
- return;
- }
- proc = Conn_GetProcStat(conn);
- client = Conn_GetClient(conn);
-
- /* Read result from pipe */
- len = Proc_Read(proc, &result, sizeof(result));
- if (len == 0)
- return;
-
- /* Make sure authenticator sub-process is dead now ... */
- Proc_Kill(proc);
-
- if (len != sizeof(result)) {
- Log(LOG_CRIT, "Auth: Got malformed result!");
- Reject_Client(client);
- return;
- }
-
- if (result == true)
- (void)Hello_User_PostAuth(client);
- else
- Reject_Client(client);
-}
-
-#endif
-
-
-static void
-Reject_Client(CLIENT *Client)
-{
- Log(LOG_ERR,
- "User \"%s\" rejected (connection %d): Access denied!",
- Client_Mask(Client), Client_Conn(Client));
- Conn_Close(Client_Conn(Client), NULL,
- "Access denied! Bad password?", true);
-}
-
-
-static bool
-Hello_User_PostAuth(CLIENT *Client)
-{
- Introduce_Client(NULL, Client, CLIENT_USER);
-
- if (!IRC_WriteStrClient
- (Client, RPL_WELCOME_MSG, Client_ID(Client), Client_Mask(Client)))
- return false;
- if (!IRC_WriteStrClient
- (Client, RPL_YOURHOST_MSG, Client_ID(Client),
- Client_ID(Client_ThisServer()), PACKAGE_VERSION, TARGET_CPU,
- TARGET_VENDOR, TARGET_OS))
- return false;
- if (!IRC_WriteStrClient
- (Client, RPL_CREATED_MSG, Client_ID(Client), NGIRCd_StartStr))
- return false;
- if (!IRC_WriteStrClient
- (Client, RPL_MYINFO_MSG, Client_ID(Client),
- Client_ID(Client_ThisServer()), PACKAGE_VERSION, USERMODES,
- CHANMODES))
- return false;
-
- /* Features supported by this server (005 numeric, ISUPPORT),
- * see <http://www.irc.org/tech_docs/005.html> for details. */
- if (!IRC_Send_ISUPPORT(Client))
- return DISCONNECTED;
-
- if (!IRC_Send_LUSERS(Client))
- return DISCONNECTED;
- if (!IRC_Show_MOTD(Client))
- return DISCONNECTED;
-
- /* Suspend the client for a second ... */
- IRC_SetPenalty(Client, 1);
+ if (Client_Type(Client) == CLIENT_SERVER && Conn_LastPing(conn) == 0) {
+ Log(LOG_INFO,
+ "Synchronization with \"%s\" done (connection %d): %ld second%s [%ld users, %ld channels].",
+ Client_ID(Client), conn, time(NULL) - Conn_GetSignon(conn),
+ time(NULL) - Conn_GetSignon(conn) == 1 ? "" : "s",
+ Client_UserCount(), Channel_CountVisible(NULL));
+ Conn_UpdatePing(conn);
+ } else
+ LogDebug("Connection %d: received PONG. Lag: %ld seconds.",
+ conn, time(NULL) - Conn_LastPing(conn));
return CONNECTED;
-}
+} /* IRC_PONG */
+/**
+ * Kill all users with a specific nickname in the network.
+ *
+ * @param Nick Nickname.
+ * @param Reason Reason for the KILL.
+ */
static void
-Kill_Nick( char *Nick, char *Reason )
+Kill_Nick(char *Nick, char *Reason)
{
REQUEST r;
- assert( Nick != NULL );
- assert( Reason != NULL );
+ assert (Nick != NULL);
+ assert (Reason != NULL);
- r.prefix = (char *)Client_ThisServer( );
+ r.prefix = NULL;
r.argv[0] = Nick;
r.argv[1] = Reason;
r.argc = 2;
- Log( LOG_ERR, "User(s) with nick \"%s\" will be disconnected: %s", Nick, Reason );
- IRC_KILL( Client_ThisServer( ), &r );
+ Log(LOG_ERR, "User(s) with nick \"%s\" will be disconnected: %s!",
+ Nick, Reason);
+
+ IRC_KILL(Client_ThisServer(), &r);
} /* Kill_Nick */
+/**
+ * Change the nickname of a client.
+ *
+ * @param Origin The client which caused the nickname change.
+ * @param Target The client of which the nickname should be changed.
+ * @param NewNick The new nickname.
+ */
static void
-Introduce_Client(CLIENT *From, CLIENT *Client, int Type)
+Change_Nick(CLIENT *Origin, CLIENT *Target, char *NewNick, bool InformClient)
{
- /* Set client type (user or service) */
- Client_SetType(Client, Type);
-
- if (From) {
- if (Conf_IsService(Conf_GetServer(Client_Conn(From)),
- Client_ID(Client)))
- Client_SetType(Client, CLIENT_SERVICE);
- LogDebug("%s \"%s\" (+%s) registered (via %s, on %s, %d hop%s).",
- Client_TypeText(Client), Client_Mask(Client),
- Client_Modes(Client), Client_ID(From),
- Client_ID(Client_Introducer(Client)),
- Client_Hops(Client), Client_Hops(Client) > 1 ? "s": "");
+ if (Client_Conn(Target) > NONE) {
+ /* Local client */
+ Log(LOG_INFO,
+ "%s \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".",
+ Client_TypeText(Target), Client_Mask(Target),
+ Client_Conn(Target), Client_ID(Target), NewNick);
+ Conn_UpdateIdle(Client_Conn(Target));
} else {
- Log(LOG_NOTICE, "%s \"%s\" registered (connection %d).",
- Client_TypeText(Client), Client_Mask(Client),
- Client_Conn(Client));
- Log_ServerNotice('c', "Client connecting: %s (%s@%s) [%s] - %s",
- Client_ID(Client), Client_User(Client),
- Client_Hostname(Client),
- Conn_IPA(Client_Conn(Client)),
- Client_TypeText(Client));
+ /* Remote client */
+ LogDebug("%s \"%s\" changed nick: \"%s\" -> \"%s\".",
+ Client_TypeText(Target),
+ Client_Mask(Target), Client_ID(Target), NewNick);
}
- /* Inform other servers */
- IRC_WriteStrServersPrefixFlag_CB(From,
- From != NULL ? From : Client_ThisServer(),
- '\0', cb_introduceClient, (void *)Client);
-} /* Introduce_Client */
+ /* Inform all servers and users (which have to know) of the new name */
+ if (InformClient) {
+ IRC_WriteStrClientPrefix(Target, Target, "NICK :%s", NewNick);
+ IRC_WriteStrServersPrefix(NULL, Target, "NICK :%s", NewNick);
+ } else
+ IRC_WriteStrServersPrefix(Origin, Target, "NICK :%s", NewNick);
+ IRC_WriteStrRelatedPrefix(Target, Target, false, "NICK :%s", NewNick);
+ /* Register old nickname for WHOWAS queries */
+ Client_RegisterWhowas(Target);
-static void
-cb_introduceClient(CLIENT *To, CLIENT *Prefix, void *data)
-{
- CLIENT *c = (CLIENT *)data;
- CONN_ID conn;
- char *modes, *user, *host;
-
- modes = Client_Modes(c);
- user = Client_User(c) ? Client_User(c) : "-";
- host = Client_Hostname(c) ? Client_Hostname(c) : "-";
-
- conn = Client_Conn(To);
- if (Conn_Options(conn) & CONN_RFC1459) {
- /* RFC 1459 mode: separate NICK and USER commands */
- Conn_WriteStr(conn, "NICK %s :%d", Client_ID(c),
- Client_Hops(c) + 1);
- Conn_WriteStr(conn, ":%s USER %s %s %s :%s",
- Client_ID(c), user, host,
- Client_ID(Client_Introducer(c)), Client_Info(c));
- if (modes[0])
- Conn_WriteStr(conn, ":%s MODE %s +%s",
- Client_ID(c), Client_ID(c), modes);
- } else {
- /* RFC 2813 mode: one combined NICK or SERVICE command */
- if (Client_Type(c) == CLIENT_SERVICE
- && strchr(Client_Flags(To), 'S'))
- IRC_WriteStrClientPrefix(To, Prefix,
- "SERVICE %s %d * +%s %d :%s",
- Client_Mask(c),
- Client_MyToken(Client_Introducer(c)),
- Client_Modes(c), Client_Hops(c) + 1,
- Client_Info(c));
- else
- IRC_WriteStrClientPrefix(To, Prefix,
- "NICK %s %d %s %s %d +%s :%s",
- Client_ID(c), Client_Hops(c) + 1,
- user, host,
- Client_MyToken(Client_Introducer(c)),
- modes, Client_Info(c));
- }
-} /* cb_introduceClient */
+ /* Save new nickname */
+ Client_SetID(Target, NewNick);
+}
/* -eof- */
projects / ngircd-alex.git / blobdiff