* Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
* der an comBase beteiligten Autoren finden Sie in der Datei AUTHORS.
*
- * $Id: irc.c,v 1.1 2001/12/14 08:13:43 alex Exp $
+ * $Id: irc.c,v 1.11 2001/12/27 16:55:41 alex Exp $
*
* irc.c: IRC-Befehle
*
* $Log: irc.c,v $
+ * Revision 1.11 2001/12/27 16:55:41 alex
+ * - neu: IRC_WriteStrRelated(), Aenderungen auch in IRC_WriteStrClient().
+ *
+ * Revision 1.10 2001/12/26 22:48:53 alex
+ * - MOTD-Datei ist nun konfigurierbar und wird gelesen.
+ *
+ * Revision 1.9 2001/12/26 14:45:37 alex
+ * - "Code Cleanups".
+ *
+ * Revision 1.8 2001/12/26 03:21:46 alex
+ * - PING/PONG-Befehle implementiert,
+ * - Meldungen ueberarbeitet: enthalten nun (fast) immer den Nick.
+ *
+ * Revision 1.7 2001/12/25 23:25:18 alex
+ * - und nochmal Aenderungen am Logging ;-)
+ *
+ * Revision 1.6 2001/12/25 23:13:33 alex
+ * - Debug-Meldungen angepasst.
+ *
+ * Revision 1.5 2001/12/25 22:02:42 alex
+ * - neuer IRC-Befehl "/QUIT". Verbessertes Logging & Debug-Ausgaben.
+ *
+ * Revision 1.4 2001/12/25 19:19:30 alex
+ * - bessere Fehler-Abfragen, diverse Bugfixes.
+ * - Nicks werden nur einmal vergeben :-)
+ * - /MOTD wird unterstuetzt.
+ *
+ * Revision 1.3 2001/12/24 01:34:06 alex
+ * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX)
+ * - MOTD-Ausgabe begonnen zu implementieren.
+ *
+ * Revision 1.2 2001/12/23 21:57:16 alex
+ * - erste IRC-Befehle zu implementieren begonnen.
+ *
* Revision 1.1 2001/12/14 08:13:43 alex
* - neues Modul begonnen :-)
- *
*/
#include <imp.h>
#include <assert.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "client.h"
+#include "conf.h"
+#include "log.h"
+#include "messages.h"
+#include "parse.h"
#include <exp.h>
#include "irc.h"
+#define CONNECTED TRUE
+#define DISCONNECTED FALSE
+
+
+LOCAL BOOLEAN Check_Valid_User( CLIENT *Client );
+
+LOCAL BOOLEAN Hello_User( CLIENT *Client );
+LOCAL BOOLEAN Show_MOTD( CLIENT *Client );
+
+
GLOBAL VOID IRC_Init( VOID )
{
} /* IRC_Init */
} /* IRC_Exit */
+GLOBAL BOOLEAN IRC_WriteStrClient( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... )
+{
+ /* Text an Clients, lokal bzw. remote, senden. */
+
+ CHAR buffer[1000];
+ BOOLEAN ok = CONNECTED;
+ CONN_ID send_to;
+ va_list ap;
+
+ assert( Client != NULL );
+ assert( Format != NULL );
+
+ va_start( ap, Format );
+ vsnprintf( buffer, 1000, Format, ap );
+ va_end( ap );
+
+ if( Client->conn_id != NONE ) send_to = Client->conn_id;
+ else send_to = Client->introducer->conn_id;
+
+ if( Prefix ) ok = Conn_WriteStr( Client->conn_id, ":%s %s", Client_GetID( Prefix ), buffer );
+ else ok = Conn_WriteStr( Client->conn_id, buffer );
+
+ return ok;
+} /* IRC_WriteStrClient */
+
+
+GLOBAL BOOLEAN IRC_WriteStrRelated( CLIENT *Client, CHAR *Format, ... )
+{
+ CHAR buffer[1000];
+ BOOLEAN ok = CONNECTED;
+ va_list ap;
+
+ assert( Client != NULL );
+ assert( Format != NULL );
+
+ va_start( ap, Format );
+ vsnprintf( buffer, 1000, Format, ap );
+ va_end( ap );
+
+ /* an den Client selber */
+ ok = IRC_WriteStrClient( Client, Client, buffer );
+
+ return ok;
+} /* IRC_WriteStrRelated */
+
+
+GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ if( Client->type == CLIENT_UNKNOWN )
+ {
+ Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client->conn_id );
+ return IRC_WriteStrClient( Client, This_Server, ERR_UNKNOWNCOMMAND_MSG, Client_Name( Client ), Req->command );
+ }
+ else return IRC_WriteStrClient( Client, This_Server, ERR_ALREADYREGISTRED_MSG, Client_Name( Client ));
+} /* IRC_PASS */
+
+
+GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE )
+ {
+ /* Falsche Anzahl Parameter? */
+ if( Req->argc != 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command );
+
+ /* pruefen, ob Nick bereits vergeben */
+ if( ! Client_CheckNick( Client, Req->argv[0] )) return CONNECTED;
+
+ if( Client->type == CLIENT_USER )
+ {
+ /* Nick-Aenderung: allen mitteilen! */
+ IRC_WriteStrRelated( Client, "NICK :%s", Req->argv[0] );
+ }
+
+ /* Client-Nick registrieren */
+ strcpy( Client->nick, Req->argv[0] );
+
+ if( Client->type != CLIENT_USER )
+ {
+ /* Neuer Client */
+ Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client->conn_id );
+ if( Client->type == CLIENT_GOTUSER ) return Hello_User( Client );
+ else Client->type = CLIENT_GOTNICK;
+ }
+ return CONNECTED;
+ }
+ else return IRC_WriteStrClient( Client, This_Server, ERR_ALREADYREGISTRED_MSG, Client_Name( Client ));
+} /* IRC_NICK */
+
+
+GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ if( Client->type == CLIENT_UNKNOWN || Client->type == CLIENT_GOTNICK || Client->type == CLIENT_GOTPASS )
+ {
+ /* Falsche Anzahl Parameter? */
+ if( Req->argc != 4 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command );
+
+ strncpy( Client->user, Req->argv[0], CLIENT_USER_LEN );
+ Client->user[CLIENT_USER_LEN] = '\0';
+ strncpy( Client->name, Req->argv[3], CLIENT_NAME_LEN );
+ Client->name[CLIENT_NAME_LEN] = '\0';
+
+ Log( LOG_DEBUG, "Connection %d: got USER command ...", Client->conn_id );
+ if( Client->type == CLIENT_GOTNICK ) return Hello_User( Client );
+ else Client->type = CLIENT_GOTUSER;
+ return CONNECTED;
+ }
+ else if( Client->type == CLIENT_USER || Client->type == CLIENT_SERVER || Client->type == CLIENT_SERVICE )
+ {
+ return IRC_WriteStrClient( Client, This_Server, ERR_ALREADYREGISTRED_MSG, Client_Name( Client ));
+ }
+ else return IRC_WriteStrClient( Client, This_Server, ERR_NOTREGISTERED_MSG, Client_Name( Client ));
+} /* IRC_USER */
+
+
+GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE )
+ {
+ /* Falsche Anzahl Parameter? */
+ if( Req->argc > 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command );
+
+ Conn_Close( Client->conn_id, "Client wants to quit." );
+ return DISCONNECTED;
+ }
+ else return IRC_WriteStrClient( Client, This_Server, ERR_NOTREGISTERED_MSG, Client_Name( Client ));
+} /* IRC_QUIT */
+
+
+GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ return IRC_WriteStrClient( Client, This_Server, ERR_UNKNOWNCOMMAND_MSG, Client_Name( Client ), Req->command );
+} /* IRC_PING */
+
+
+GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ if( ! Check_Valid_User( Client )) return CONNECTED;
+
+ /* Falsche Anzahl Parameter? */
+ if( Req->argc < 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NOORIGIN_MSG, Client_Name( Client ));
+ if( Req->argc > 1 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command );
+
+ /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket
+ * aktualisiert, daher muss das hier nicht mehr gemacht werden. */
+
+ Log( LOG_DEBUG, "Connection %d: received PONG.", Client->conn_id );
+ return CONNECTED;
+} /* IRC_PONG */
+
+
+GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req )
+{
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ if( ! Check_Valid_User( Client )) return CONNECTED;
+
+ /* Falsche Anzahl Parameter? */
+ if( Req->argc != 0 ) return IRC_WriteStrClient( Client, This_Server, ERR_NEEDMOREPARAMS_MSG, Client_Name( Client ), Req->command );
+
+ return Show_MOTD( Client );
+} /* IRC_MOTD */
+
+
+LOCAL BOOLEAN Check_Valid_User( CLIENT *Client )
+{
+ assert( Client != NULL );
+
+ if( Client->type != CLIENT_USER )
+ {
+ IRC_WriteStrClient( Client, This_Server, ERR_NOTREGISTERED_MSG, Client_Name( Client ));
+ return FALSE;
+ }
+ else return TRUE;
+} /* Check_Valid_User */
+
+
+LOCAL BOOLEAN Hello_User( CLIENT *Client )
+{
+ assert( Client != NULL );
+ assert( Client->nick[0] );
+
+ Log( LOG_NOTICE, "User \"%s!%s@%s\" (%s) registered.", Client->nick, Client->user, Client->host, Client->name );
+
+ IRC_WriteStrClient( Client, This_Server, RPL_WELCOME_MSG, Client->nick, Client_GetID( Client ));
+ IRC_WriteStrClient( Client, This_Server, RPL_YOURHOST_MSG, Client->nick, This_Server->host );
+ IRC_WriteStrClient( Client, This_Server, RPL_CREATED_MSG, Client->nick );
+ IRC_WriteStrClient( Client, This_Server, RPL_MYINFO_MSG, Client->nick, This_Server->host );
+
+ Client->type = CLIENT_USER;
+
+ return Show_MOTD( Client );
+} /* Hello_User */
+
+
+LOCAL BOOLEAN Show_MOTD( CLIENT *Client )
+{
+ BOOLEAN ok;
+ CHAR line[127];
+ FILE *fd;
+
+ assert( Client != NULL );
+ assert( Client->nick[0] );
+
+ fd = fopen( Conf_MotdFile, "r" );
+ if( ! fd )
+ {
+ Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
+ return IRC_WriteStrClient( Client, This_Server, ERR_NOMOTD_MSG, Client->nick );
+ }
+
+ IRC_WriteStrClient( Client, This_Server, RPL_MOTDSTART_MSG, Client->nick, This_Server->host );
+ while( TRUE )
+ {
+ if( ! fgets( line, 126, fd )) break;
+ if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
+ IRC_WriteStrClient( Client, This_Server, RPL_MOTD_MSG, Client->nick, line );
+ }
+ ok = IRC_WriteStrClient( Client, This_Server, RPL_ENDOFMOTD_MSG, Client->nick );
+
+ fclose( fd );
+
+ return ok;
+} /* Show_MOTD */
+
+
/* -eof- */
projects / ngircd-alex.git / blobdiff