#include "irc-login.h"
-typedef struct _INTRO_INFO {
- char *nick; /* Nick name */
- int hopcount; /* Hop count */
- char *user; /* User name */
- char *host; /* Host name */
- CLIENT *server; /* Server the client is connected to */
- char *mode; /* User modes */
- char *name; /* Real name */
-} INTRO_INFO;
-
-
static bool Hello_User PARAMS(( CLIENT *Client ));
static void Kill_Nick PARAMS(( char *Nick, char *Reason ));
-static void Introduce_Client PARAMS((CLIENT *From, char *Nick,
- const int HopCount, char *User,
- char *Host, CLIENT *Server,
- char *Mode, char *Name ));
+static void Introduce_Client PARAMS((CLIENT *To, CLIENT *Client, int Type));
static void cb_introduceClient PARAMS((CLIENT *Client, CLIENT *Prefix,
void *i));
assert( Client != NULL );
assert( Req != NULL );
-#ifndef STRICT_RFC
/* Some IRC clients, for example BitchX, send the NICK and USER
* commands in the wrong order ... */
- if( Client_Type( Client ) == CLIENT_UNKNOWN
- || Client_Type( Client ) == CLIENT_GOTPASS
- || Client_Type( Client ) == CLIENT_GOTNICK
- || Client_Type( Client ) == CLIENT_GOTUSER
- || Client_Type( Client ) == CLIENT_USER
- || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
-#else
- if( Client_Type( Client ) == CLIENT_UNKNOWN
- || Client_Type( Client ) == CLIENT_GOTPASS
- || Client_Type( Client ) == CLIENT_GOTNICK
- || Client_Type( Client ) == CLIENT_USER
- || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
+ if(Client_Type(Client) == CLIENT_UNKNOWN
+ || Client_Type(Client) == CLIENT_GOTPASS
+ || Client_Type(Client) == CLIENT_GOTNICK
+#ifndef STRICT_RFC
+ || Client_Type(Client) == CLIENT_GOTUSER
#endif
+ || Client_Type(Client) == CLIENT_USER
+ || Client_Type(Client) == CLIENT_SERVICE
+ || (Client_Type(Client) == CLIENT_SERVER && Req->argc == 1))
{
/* User registration or change of nickname */
return CONNECTED;
}
- if(( Client_Type( target ) != CLIENT_USER )
- && ( Client_Type( target ) != CLIENT_SERVER ))
- {
+ if (Client_Type(target) != CLIENT_USER &&
+ Client_Type(target) != CLIENT_SERVICE &&
+ Client_Type(target) != CLIENT_SERVER) {
/* New client */
Log( LOG_DEBUG, "Connection %d: got valid NICK command ...",
Client_Conn( Client ));
return Hello_User( Client );
else
Client_SetType( Client, CLIENT_GOTNICK );
- }
- else
- {
+ } else {
/* Nickname change */
if (Client_Conn(target) > NONE) {
/* Local client */
Log(LOG_INFO,
- "User \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".",
- Client_Mask(target), Client_Conn(target),
- Client_ID(target), Req->argv[0]);
+ "%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
- {
+ } else {
/* Remote client */
- Log( LOG_DEBUG,
- "User \"%s\" changed nick: \"%s\" -> \"%s\".",
- Client_Mask( target ), Client_ID( target ),
- Req->argv[0] );
+ 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)
* other servers about the new user.
* RFC 1459: announce the new client only after receiving the
* USER command, first we need more information! */
- if (Req->argc >= 7) {
- modes = Client_Modes(c);
- LogDebug("User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).",
- Client_Mask(c), modes, Client_ID(Client),
- Client_ID(intr_c), Client_Hops(c),
- Client_Hops(c) > 1 ? "s": "");
-
- Introduce_Client(Client, Req->argv[0],
- atoi(Req->argv[1]) + 1, Req->argv[2],
- Req->argv[3], intr_c, modes, Req->argv[6]);
- } else {
- LogDebug("User \"%s\" is beeing registered (RFC 1459) ...",
+ if (Req->argc < 7) {
+ LogDebug("Client \"%s\" is beeing registered (RFC 1459) ...",
Client_Mask(c));
Client_SetType(c, CLIENT_GOTNICK);
- }
+ } else
+ Introduce_Client(Client, c, CLIENT_USER);
return CONNECTED;
}
LogDebug("Connection %d: got valid USER command for \"%s\".",
Client_Conn(Client), Client_Mask(c));
- /* RFC 1459 style user registration? Inform other servers! */
- if (Client_Type(c) == CLIENT_GOTNICK) {
- Introduce_Client(Client, Client_ID(c), Client_Hops(c),
- Client_User(c), Client_Hostname(c),
- Client_Introducer(c), Client_Modes(c),
- Client_Info(c));
- LogDebug("User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).",
- Client_Mask(c), Client_Modes(c), Client_ID(Client),
- Client_ID(Client_Introducer(c)), Client_Hops(c),
- Client_Hops(c) > 1 ? "s": "");
- Client_SetType(c, CLIENT_USER);
- }
+ /* RFC 1459 style user registration?
+ * Introduce client to network: */
+ if (Client_Type(c) == CLIENT_GOTNICK)
+ Introduce_Client(Client, c, CLIENT_USER);
return CONNECTED;
} else if (Client_Type(Client) == CLIENT_USER) {
/**
- * Service registration.
- * ngIRCd does not support services at the moment, so this function is a
- * dummy that returns ERR_ERRONEUSNICKNAME on each call.
+ * Handler for the IRC command "SERVICE".
+ * 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.
*/
GLOBAL bool
IRC_SERVICE(CLIENT *Client, REQUEST *Req)
{
+ CLIENT *c, *intr_c;
+ char *nick, *user, *host, *info, *modes, *ptr;
+ int token, hops;
+
assert(Client != NULL);
assert(Req != NULL);
- if (Client_Type(Client) != CLIENT_GOTPASS)
+ if (Client_Type(Client) != CLIENT_GOTPASS &&
+ Client_Type(Client) != CLIENT_SERVER)
return IRC_WriteStrClient(Client, ERR_ALREADYREGISTRED_MSG,
Client_ID(Client));
return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
Client_ID(Client), Req->command);
- return IRC_WriteStrClient(Client, ERR_ERRONEUSNICKNAME_MSG,
+ if (Client_Type(Client) != CLIENT_SERVER)
+ return IRC_WriteStrClient(Client, ERR_ERRONEUSNICKNAME_MSG,
Client_ID(Client), Req->argv[0]);
+
+ /* Bad number of parameters? */
+ if (Req->argc != 6)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ nick = Req->argv[0];
+ user = NULL; host = NULL;
+ token = atoi(Req->argv[1]);
+ hops = atoi(Req->argv[4]);
+ info = Req->argv[5];
+
+ /* Validate service name ("nick name") */
+ c = Client_Search(nick);
+ if(c) {
+ /* Nick name 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;
+ }
+
+ /* Get the server to which the service is connected */
+ intr_c = Client_GetFromToken(Client, token);
+ if (! intr_c) {
+ Log(LOG_ERR, "Server %s introduces service \"%s\" on unknown server!?",
+ Client_ID(Client), nick);
+ Kill_Nick(nick, "Unknown server");
+ return CONNECTED;
+ }
+
+ /* Get user and host name */
+ ptr = strchr(nick, '@');
+ if (ptr) {
+ *ptr = '\0';
+ host = ++ptr;
+ }
+ if (!host)
+ host = Client_Hostname(intr_c);
+ ptr = strchr(nick, '!');
+ if (ptr) {
+ *ptr = '\0';
+ user = ++ptr;
+ }
+ if (!user)
+ user = nick;
+
+ /* According to RFC 2812/2813 parameter 4 <type> "is currently reserved
+ * for future usage"; but we use it to transfer the modes and check
+ * that the first character is a '+' sign and ignore it otherwise. */
+ modes = (Req->argv[3][0] == '+') ? ++Req->argv[3] : "";
+
+ c = Client_NewRemoteUser(intr_c, nick, hops, user, host,
+ token, modes, info, true);
+ if (! c) {
+ /* Couldn't create client structure, so KILL the service to
+ * keep network status consistent ... */
+ Log(LOG_ALERT, "Can't create client structure! (on connection %d)",
+ Client_Conn(Client));
+ Kill_Nick(nick, "Server error");
+ return CONNECTED;
+ }
+
+ Introduce_Client(Client, c, CLIENT_SERVICE);
+ return CONNECTED;
} /* IRC_SERVICE */
static bool
Hello_User(CLIENT * Client)
{
- char modes[CLIENT_MODE_LEN + 1] = "+";
-
assert(Client != NULL);
/* Check password ... */
if (strcmp(Client_Password(Client), Conf_ServerPwd) != 0) {
/* Bad password! */
Log(LOG_ERR,
- "User \"%s\" rejected (connection %d): Bad password!",
+ "Client \"%s\" rejected (connection %d): Bad password!",
Client_Mask(Client), Client_Conn(Client));
Conn_Close(Client_Conn(Client), NULL, "Bad password", true);
return DISCONNECTED;
}
- Log(LOG_NOTICE, "User \"%s\" registered (connection %d).",
- Client_Mask(Client), Client_Conn(Client));
-
- /* Inform other servers */
- strlcat(modes, Client_Modes(Client), sizeof(modes));
- Introduce_Client(NULL, Client_ID(Client), 1, Client_User(Client),
- Client_Hostname(Client), NULL, modes,
- Client_Info(Client));
+ Introduce_Client(NULL, Client, CLIENT_USER);
if (!IRC_WriteStrClient
(Client, RPL_WELCOME_MSG, Client_ID(Client), Client_Mask(Client)))
if (!IRC_Send_ISUPPORT(Client))
return DISCONNECTED;
- Client_SetType(Client, CLIENT_USER);
-
if (!IRC_Send_LUSERS(Client))
return DISCONNECTED;
if (!IRC_Show_MOTD(Client))
static void
-Introduce_Client(CLIENT *From, char *Nick, const int HopCount, char *User,
- char *Host, CLIENT *Server, char *Mode, char *Name)
+Introduce_Client(CLIENT *From, CLIENT *Client, int Type)
{
- INTRO_INFO i;
-
- i.nick = Nick;
- i.hopcount = HopCount;
- i.user = User ? User : "-";
- i.host = Host ? Host : "-";
- i.server = Server ? Server : Client_ThisServer();
- i.mode = Mode ? Mode : "+";
- i.name = Name ? Name : "";
+ /* 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": "");
+ } else
+ Log(LOG_NOTICE, "%s \"%s\" registered (connection %d).",
+ Client_TypeText(Client), Client_Mask(Client),
+ Client_Conn(Client));
+ /* Inform other servers */
IRC_WriteStrServersPrefixFlag_CB(From,
From != NULL ? From : Client_ThisServer(),
- '\0', cb_introduceClient, (void *)(&i));
+ '\0', cb_introduceClient, (void *)Client);
} /* Introduce_Client */
static void
-cb_introduceClient(CLIENT *Client, CLIENT *Prefix, void *data)
+cb_introduceClient(CLIENT *To, CLIENT *Prefix, void *data)
{
- INTRO_INFO *i = (INTRO_INFO *)data;
+ CLIENT *c = (CLIENT *)data;
CONN_ID conn;
+ char *modes, *user, *host;
- conn = Client_Conn(Client);
+ 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", i->nick, i->hopcount);
+ Conn_WriteStr(conn, "NICK %s :%d", Client_ID(c),
+ Client_Hops(c) + 1);
Conn_WriteStr(conn, ":%s USER %s %s %s :%s",
- i->nick, i->user, i->host,
- Client_ID(i->server), i->name);
- if (i->mode[0])
+ Client_ID(c), user, host,
+ Client_ID(Client_Introducer(c)), Client_Info(c));
+ if (modes[0])
Conn_WriteStr(conn, ":%s MODE %s +%s",
- i->nick, i->nick, i->mode);
+ Client_ID(c), Client_ID(c), modes);
} else {
- /* RFC 2813 mode: one combined NICK command */
- IRC_WriteStrClientPrefix(Client, Prefix,
+ /* 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",
- i->nick, i->hopcount, i->user, i->host,
- Client_MyToken(i->server), i->mode,
- i->name);
+ Client_ID(c), Client_Hops(c) + 1,
+ user, host,
+ Client_MyToken(Client_Introducer(c)),
+ modes, Client_Info(c));
}
} /* cb_introduceClient */
projects / ngircd-alex.git / blobdiff