X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc-server.c;h=0a9e930d816f696b5fc784fa6857c063fbf49744;hp=b75a34f9834abf6267d5ebb60faae753cff51a17;hb=d38d153f;hpb=bce16c2864309d5fc7da8d0591120466303aa966

diff --git a/src/ngircd/irc-server.c b/src/ngircd/irc-server.c
index b75a34f9..0a9e930d 100644
--- a/src/ngircd/irc-server.c
+++ b/src/ngircd/irc-server.c
@@ -7,13 +7,15 @@
  * 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.
- *
- * IRC commands for server links
  */
 
-
 #include "portab.h"
 
+/**
+ * @file
+ * IRC commands for server links
+ */
+
 #include "imp.h"
 #include <assert.h>
 #include <stdio.h>
@@ -22,12 +24,10 @@
 #include <strings.h>
 
 #include "defines.h"
-#include "resolve.h"
 #include "conn.h"
 #include "conn-func.h"
 #include "conn-zip.h"
 #include "conf.h"
-#include "client.h"
 #include "channel.h"
 #include "irc-write.h"
 #include "lists.h"
@@ -37,6 +37,7 @@
 #include "numeric.h"
 #include "ngircd.h"
 #include "irc-info.h"
+#include "op.h"
 
 #include "exp.h"
 #include "irc-server.h"
@@ -52,8 +53,7 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
 	char str[LINE_LEN];
 	CLIENT *from, *c;
 	int i;
-	CONN_ID con;
-	
+
 	assert( Client != NULL );
 	assert( Req != NULL );
 
@@ -69,26 +69,44 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
 		LogDebug("Connection %d: got SERVER command (new server link) ...",
 			Client_Conn(Client));
 
-		if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
-		/* Ist this server configured on out side? */
-		for( i = 0; i < MAX_SERVERS; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
-		if( i >= MAX_SERVERS )
-		{
-			Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
-			Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", true);
+		if (Req->argc != 2 && Req->argc != 3)
+			return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+						  Client_ID(Client),
+						  Req->command);
+
+		/* Get configuration index of new remote server ... */
+		for (i = 0; i < MAX_SERVERS; i++)
+			if (strcasecmp(Req->argv[0], Conf_Server[i].name) == 0)
+				break;
+
+		/* Makre sure the remote server is configured here */
+		if (i >= MAX_SERVERS) {
+			Log(LOG_ERR,
+			    "Connection %d: Server \"%s\" not configured here!",
+			    Client_Conn(Client), Req->argv[0]);
+			Conn_Close(Client_Conn(Client), NULL,
+				   "Server not configured here", true);
 			return DISCONNECTED;
 		}
-		if( strcmp( Client_Password( Client ), Conf_Server[i].pwd_in ) != 0 )
-		{
-			/* wrong password */
-			Log( LOG_ERR, "Connection %d: Got bad password from server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
-			Conn_Close( Client_Conn( Client ), NULL, "Bad password", true);
+
+		/* Check server password */
+		if (strcmp(Conn_Password(Client_Conn(Client)),
+		    Conf_Server[i].pwd_in) != 0) {
+			Log(LOG_ERR,
+			    "Connection %d: Got bad password from server \"%s\"!",
+			    Client_Conn(Client), Req->argv[0]);
+			Conn_Close(Client_Conn(Client), NULL,
+				   "Bad password", true);
 			return DISCONNECTED;
 		}
-		
+
 		/* Is there a registered server with this ID? */
-		if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
+		if (!Client_CheckID(Client, Req->argv[0]))
+			return DISCONNECTED;
+
+		/* Mark this connection as belonging to an configured server */
+		if (!Conf_SetServer(i, Client_Conn(Client)))
+			return DISCONNECTED;
 
 		Client_SetID( Client, Req->argv[0] );
 		Client_SetHops( Client, 1 );
@@ -96,7 +114,6 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
 
 		/* Is this server registering on our side, or are we connecting to
 		 * a remote server? */
-		con = Client_Conn(Client);
 		if (Client_Token(Client) != TOKEN_OUTBOUND) {
 			/* Incoming connection, send user/pass */
 			if (!IRC_WriteStrClient(Client, "PASS %s %s",
@@ -105,7 +122,8 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
 			    || !IRC_WriteStrClient(Client, "SERVER %s 1 :%s",
 						   Conf_ServerName,
 						   Conf_ServerInfo)) {
-				    Conn_Close(con, "Unexpected server behavior!",
+				    Conn_Close(Client_Conn(Client),
+					       "Unexpected server behavior!",
 					       NULL, false);
 				    return DISCONNECTED;
 			}
@@ -117,25 +135,25 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
 			Client_SetToken(Client, atoi(Req->argv[1]));
 		}
 
-		/* Mark this connection as belonging to an configured server */
-		Conf_SetServer(i, con);
-
 		/* Check protocol level */
 		if (Client_Type(Client) == CLIENT_GOTPASS) {
 			/* We got a "simple" PASS command, so the peer is
 			 * using the protocol as defined in RFC 1459. */
-			if (! (Conn_Options(con) & CONN_RFC1459))
+			if (! (Conn_Options(Client_Conn(Client)) & CONN_RFC1459))
 				Log(LOG_INFO,
 				    "Switching connection %d (\"%s\") to RFC 1459 compatibility mode.",
-				    con, Client_ID(Client));
-			Conn_SetOption(con, CONN_RFC1459);
+				    Client_Conn(Client), Client_ID(Client));
+			Conn_SetOption(Client_Conn(Client), CONN_RFC1459);
 		}
 
 		Client_SetType(Client, CLIENT_UNKNOWNSERVER);
 
 #ifdef ZLIB
-		if (strchr(Client_Flags(Client), 'Z') && !Zip_InitConn(con)) {
-			Conn_Close( con, "Can't inizialize compression (zlib)!", NULL, false );
+		if (strchr(Client_Flags(Client), 'Z')
+		    && !Zip_InitConn(Client_Conn(Client))) {
+			Conn_Close(Client_Conn(Client),
+				   "Can't inizialize compression (zlib)!",
+				   NULL, false );
 			return DISCONNECTED;
 		}
 #endif
@@ -201,10 +219,10 @@ GLOBAL bool
 IRC_NJOIN( CLIENT *Client, REQUEST *Req )
 {
 	char nick_in[COMMAND_LEN], nick_out[COMMAND_LEN], *channame, *ptr, modes[8];
-	bool is_op, is_voiced;
+	bool is_owner, is_chanadmin, is_op, is_halfop, is_voiced;
 	CHANNEL *chan;
 	CLIENT *c;
-	
+
 	assert( Client != NULL );
 	assert( Req != NULL );
 
@@ -217,12 +235,16 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req )
 	ptr = strtok( nick_in, "," );
 	while( ptr )
 	{
-		is_op = is_voiced = false;
-		
+		is_owner = is_chanadmin = is_op = is_halfop = is_voiced = false;
+
 		/* cut off prefixes */
-		while(( *ptr == '@' ) || ( *ptr == '+' ))
+		while(( *ptr == '~') || ( *ptr == '&' ) || ( *ptr == '@' ) ||
+			( *ptr == '%') || ( *ptr == '+' ))
 		{
+			if( *ptr == '~' ) is_owner = true;
+			if( *ptr == '&' ) is_chanadmin = true;
 			if( *ptr == '@' ) is_op = true;
+			if( *ptr == 'h' ) is_halfop = true;
 			if( *ptr == '+' ) is_voiced = true;
 			ptr++;
 		}
@@ -233,8 +255,11 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req )
 			Channel_Join( c, channame );
 			chan = Channel_Search( channame );
 			assert( chan != NULL );
-			
+
+			if( is_owner ) Channel_UserModeAdd( chan, c, 'q' );
+			if( is_chanadmin ) Channel_UserModeAdd( chan, c, 'a' );
 			if( is_op ) Channel_UserModeAdd( chan, c, 'o' );
+			if( is_halfop ) Channel_UserModeAdd( chan, c, 'h' );
 			if( is_voiced ) Channel_UserModeAdd( chan, c, 'v' );
 
 			/* announce to channel... */
@@ -249,12 +274,15 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req )
 			}
 
 			if( nick_out[0] != '\0' ) strlcat( nick_out, ",", sizeof( nick_out ));
+			if( is_owner ) strlcat( nick_out, "~", sizeof( nick_out ));
+			if( is_chanadmin ) strlcat( nick_out, "&", sizeof( nick_out ));
 			if( is_op ) strlcat( nick_out, "@", sizeof( nick_out ));
+			if( is_halfop ) strlcat( nick_out, "%", sizeof( nick_out ));
 			if( is_voiced ) strlcat( nick_out, "+", sizeof( nick_out ));
 			strlcat( nick_out, ptr, sizeof( nick_out ));
 		}
 		else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, channame );
-		
+
 		/* search for next Nick */
 		ptr = strtok( NULL, "," );
 	}
@@ -273,21 +301,45 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req )
 GLOBAL bool
 IRC_SQUIT(CLIENT * Client, REQUEST * Req)
 {
-	CLIENT *target;
-	char msg[LINE_LEN + 64];
+	char msg[COMMAND_LEN], logmsg[COMMAND_LEN];
+	CLIENT *from, *target;
+	CONN_ID con;
+	int loglevel;
 
 	assert(Client != NULL);
 	assert(Req != NULL);
 
+	if (Client_Type(Client) != CLIENT_SERVER
+	    && !Client_HasMode(Client, 'o'))
+		return Op_NoPrivileges(Client, Req);
+
 	/* Bad number of arguments? */
 	if (Req->argc != 2)
 		return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 					  Client_ID(Client), Req->command);
 
-	Log(LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...",
-	    Client_ID(Client), Req->argv[0], Req->argv[1]);
+	if (Client_Type(Client) == CLIENT_SERVER && Req->prefix) {
+		from = Client_Search(Req->prefix);
+		if (Client_Type(from) != CLIENT_SERVER
+		    && !Op_Check(Client, Req))
+			return Op_NoPrivileges(Client, Req);
+	} else
+		from = Client;
+	if (!from)
+		return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+					  Client_ID(Client), Req->prefix);
+
+	if (Client_Type(Client) == CLIENT_USER)
+		loglevel = LOG_NOTICE | LOG_snotice;
+	else
+		loglevel = LOG_DEBUG;
+	Log(loglevel, "Got SQUIT from %s for \"%s\": \"%s\" ...",
+	    Client_ID(from), Req->argv[0], Req->argv[1]);
 
 	target = Client_Search(Req->argv[0]);
+	if (Client_Type(Client) != CLIENT_SERVER &&
+	    target == Client_ThisServer())
+		return Op_NoPrivileges(Client, Req);
 	if (!target) {
 		/* The server is (already) unknown */
 		Log(LOG_WARNING,
@@ -296,27 +348,50 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req)
 		return CONNECTED;
 	}
 
-	if (Req->argv[1][0]) {
-		if (strlen(Req->argv[1]) > LINE_LEN)
-			Req->argv[1][LINE_LEN] = '\0';
-		snprintf(msg, sizeof(msg), "%s (SQUIT from %s).", Req->argv[1],
-			 Client_ID(Client));
-	} else
-		snprintf(msg, sizeof(msg), "Got SQUIT from %s.",
-			 Client_ID(Client));
-
-	if (Client_Conn(target) > NONE) {
-		/* We are directly connected to this server */
-		if (Req->argv[1][0])
-			Conn_Close(Client_Conn(target), msg, Req->argv[1],
-				   true);
+	con = Client_Conn(target);
+
+	if (Req->argv[1][0])
+		if (Client_NextHop(from) != Client || con > NONE)
+			snprintf(msg, sizeof(msg), "\"%s\" (SQUIT from %s)",
+				 Req->argv[1], Client_ID(from));
 		else
-			Conn_Close(Client_Conn(target), msg, NULL, true);
-		return DISCONNECTED;
+			strlcpy(msg, Req->argv[1], sizeof(msg));
+	else
+		snprintf(msg, sizeof(msg), "Got SQUIT from %s",
+			 Client_ID(from));
+
+	if (con > NONE) {
+		/* We are directly connected to the target server, so we
+		 * have to tear down the connection and to inform all the
+		 * other remaining servers in the network */
+		IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
+				"Received SQUIT %s from %s: %s",
+				Req->argv[0], Client_ID(from),
+				Req->argv[1][0] ? Req->argv[1] : "-");
+		Conn_Close(con, NULL, msg, true);
+		if (con == Client_Conn(Client))
+			return DISCONNECTED;
 	} else {
-		Client_Destroy(target, msg, Req->argv[1], false);
-		return CONNECTED;
+		/* This server is not directly connected, so the SQUIT must
+		 * be forwarded ... */
+		if (Client_Type(from) != CLIENT_SERVER) {
+			/* The origin is not an IRC server, so don't evaluate
+			 * this SQUIT but simply forward it */
+			IRC_WriteStrClientPrefix(Client_NextHop(target),
+			    from, "SQUIT %s :%s", Req->argv[0], Req->argv[1]);
+		} else {
+			/* SQUIT has been generated by another server, so
+			 * remove the target server from the network! */
+			logmsg[0] = '\0';
+			if (!strchr(msg, '('))
+				snprintf(logmsg, sizeof(logmsg),
+					 "\"%s\" (SQUIT from %s)", Req->argv[1],
+					 Client_ID(from));
+			Client_Destroy(target, logmsg[0] ? logmsg : msg,
+				       msg, false);
+		}
 	}
+	return CONNECTED;
 } /* IRC_SQUIT */
 
 /* -eof- */