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-rw-r--r--protocols/msn/msn_util.c359
1 files changed, 359 insertions, 0 deletions
diff --git a/protocols/msn/msn_util.c b/protocols/msn/msn_util.c
new file mode 100644
index 00000000..2f22acfc
--- /dev/null
+++ b/protocols/msn/msn_util.c
@@ -0,0 +1,359 @@
+ /********************************************************************\
+ * BitlBee -- An IRC to other IM-networks gateway *
+ * *
+ * Copyright 2002-2004 Wilmer van der Gaast and others *
+ \********************************************************************/
+
+/* MSN module - Miscellaneous utilities */
+
+/*
+ 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.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License with
+ the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
+ if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+ Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include "nogaim.h"
+#include "msn.h"
+#include <ctype.h>
+
+int msn_write( struct gaim_connection *gc, char *s, int len )
+{
+ struct msn_data *md = gc->proto_data;
+ int st;
+
+ st = write( md->fd, s, len );
+ if( st != len )
+ {
+ hide_login_progress_error( gc, "Short write() to main server" );
+ signoff( gc );
+ return( 0 );
+ }
+
+ return( 1 );
+}
+
+int msn_logged_in( struct gaim_connection *gc )
+{
+ struct msn_data *md = gc->proto_data;
+ char buf[1024];
+
+ account_online( gc );
+
+ /* account_online() sets an away state if there is any, so only
+ execute this code if we're not away. */
+ if( md->away_state == msn_away_state_list )
+ {
+ g_snprintf( buf, sizeof( buf ), "CHG %d %s %d\r\n", ++md->trId, md->away_state->code, 0 );
+ return( msn_write( gc, buf, strlen( buf ) ) );
+ }
+
+ return( 0 );
+}
+
+int msn_buddy_list_add( struct gaim_connection *gc, char *list, char *who, char *realname_ )
+{
+ struct msn_data *md = gc->proto_data;
+ GSList *l, **lp = NULL;
+ char buf[1024], *realname;
+
+ if( strcmp( list, "AL" ) == 0 )
+ lp = &gc->permit;
+ else if( strcmp( list, "BL" ) == 0 )
+ lp = &gc->deny;
+
+ if( lp )
+ for( l = *lp; l; l = l->next )
+ if( g_strcasecmp( l->data, who ) == 0 )
+ return( 1 );
+
+ realname = g_new0( char, strlen( realname_ ) * 3 + 1 );
+ strcpy( realname, realname_ );
+ http_encode( realname );
+
+ g_snprintf( buf, sizeof( buf ), "ADD %d %s %s %s\r\n", ++md->trId, list, who, realname );
+ if( msn_write( gc, buf, strlen( buf ) ) )
+ {
+ g_free( realname );
+
+ if( lp )
+ *lp = g_slist_append( *lp, g_strdup( who ) );
+
+ return( 1 );
+ }
+
+ g_free( realname );
+
+ return( 0 );
+}
+
+int msn_buddy_list_remove( struct gaim_connection *gc, char *list, char *who )
+{
+ struct msn_data *md = gc->proto_data;
+ GSList *l = NULL, **lp = NULL;
+ char buf[1024];
+
+ if( strcmp( list, "AL" ) == 0 )
+ lp = &gc->permit;
+ else if( strcmp( list, "BL" ) == 0 )
+ lp = &gc->deny;
+
+ if( lp )
+ {
+ for( l = *lp; l; l = l->next )
+ if( g_strcasecmp( l->data, who ) == 0 )
+ break;
+
+ if( !l )
+ return( 1 );
+ }
+
+ g_snprintf( buf, sizeof( buf ), "REM %d %s %s\r\n", ++md->trId, list, who );
+ if( msn_write( gc, buf, strlen( buf ) ) )
+ {
+ if( lp )
+ *lp = g_slist_remove( *lp, l->data );
+
+ return( 1 );
+ }
+
+ return( 0 );
+}
+
+struct msn_buddy_ask_data
+{
+ struct gaim_connection *gc;
+ char *handle;
+ char *realname;
+};
+
+static void msn_buddy_ask_yes( gpointer w, struct msn_buddy_ask_data *bla )
+{
+ msn_buddy_list_add( bla->gc, "AL", bla->handle, bla->realname );
+
+ g_free( bla->handle );
+ g_free( bla->realname );
+ g_free( bla );
+}
+
+static void msn_buddy_ask_no( gpointer w, struct msn_buddy_ask_data *bla )
+{
+ msn_buddy_list_add( bla->gc, "BL", bla->handle, bla->realname );
+
+ g_free( bla->handle );
+ g_free( bla->realname );
+ g_free( bla );
+}
+
+void msn_buddy_ask( struct gaim_connection *gc, char *handle, char *realname )
+{
+ struct msn_buddy_ask_data *bla = g_new0( struct msn_buddy_ask_data, 1 );
+ char buf[1024];
+
+ bla->gc = gc;
+ bla->handle = g_strdup( handle );
+ bla->realname = g_strdup( realname );
+
+ g_snprintf( buf, sizeof( buf ),
+ "The user %s (%s) wants to add you to his/her buddy list. Do you want to allow this?",
+ handle, realname );
+ do_ask_dialog( gc, buf, bla, msn_buddy_ask_yes, msn_buddy_ask_no );
+}
+
+char *msn_findheader( char *text, char *header, int len )
+{
+ int hlen = strlen( header ), i;
+ char *ret;
+
+ if( len == 0 )
+ len = strlen( text );
+
+ i = 0;
+ while( ( i + hlen ) < len )
+ {
+ /* Maybe this is a bit over-commented, but I just hate this part... */
+ if( g_strncasecmp( text + i, header, hlen ) == 0 )
+ {
+ /* Skip to the (probable) end of the header */
+ i += hlen;
+
+ /* Find the first non-[: \t] character */
+ while( i < len && ( text[i] == ':' || text[i] == ' ' || text[i] == '\t' ) ) i ++;
+
+ /* Make sure we're still inside the string */
+ if( i >= len ) return( NULL );
+
+ /* Save the position */
+ ret = text + i;
+
+ /* Search for the end of this line */
+ while( i < len && text[i] != '\r' && text[i] != '\n' ) i ++;
+
+ /* Make sure we're still inside the string */
+ if( i >= len ) return( NULL );
+
+ /* Copy the found data */
+ return( g_strndup( ret, text + i - ret ) );
+ }
+
+ /* This wasn't the header we were looking for, skip to the next line. */
+ while( i < len && ( text[i] != '\r' && text[i] != '\n' ) ) i ++;
+ while( i < len && ( text[i] == '\r' || text[i] == '\n' ) ) i ++;
+
+ /* End of headers? */
+ if( strncmp( text + i - 2, "\n\n", 2 ) == 0 ||
+ strncmp( text + i - 4, "\r\n\r\n", 4 ) == 0 ||
+ strncmp( text + i - 2, "\r\r", 2 ) == 0 )
+ {
+ break;
+ }
+ }
+
+ return( NULL );
+}
+
+/* *NOT* thread-safe, but that's not a problem for now... */
+char **msn_linesplit( char *line )
+{
+ static char **ret = NULL;
+ static int size = 3;
+ int i, n = 0;
+
+ if( ret == NULL )
+ ret = g_new0( char*, size );
+
+ for( i = 0; line[i] && line[i] == ' '; i ++ );
+ if( line[i] )
+ {
+ ret[n++] = line + i;
+ for( i ++; line[i]; i ++ )
+ {
+ if( line[i] == ' ' )
+ line[i] = 0;
+ else if( line[i] != ' ' && !line[i-1] )
+ ret[n++] = line + i;
+
+ if( n >= size )
+ ret = g_renew( char*, ret, size += 2 );
+ }
+ }
+ ret[n] = NULL;
+
+ return( ret );
+}
+
+/* This one handles input from a MSN Messenger server. Both the NS and SB servers usually give
+ commands, but sometimes they give additional data (payload). This function tries to handle
+ this all in a nice way and send all data to the right places. */
+
+/* Return values: -1: Read error, abort connection.
+ 0: Command reported error; Abort *immediately*. (The connection does not exist anymore)
+ 1: OK */
+
+int msn_handler( struct msn_handler_data *h )
+{
+ int st;
+
+ h->rxq = g_renew( char, h->rxq, h->rxlen + 1024 );
+ st = read( h->fd, h->rxq + h->rxlen, 1024 );
+ h->rxlen += st;
+
+ if( st <= 0 )
+ return( -1 );
+
+ while( st )
+ {
+ int i;
+
+ if( h->msglen == 0 )
+ {
+ for( i = 0; i < h->rxlen; i ++ )
+ {
+ if( h->rxq[i] == '\r' || h->rxq[i] == '\n' )
+ {
+ char *cmd_text, **cmd;
+ int count;
+
+ cmd_text = g_strndup( h->rxq, i );
+ cmd = msn_linesplit( cmd_text );
+ for( count = 0; cmd[count]; count ++ );
+ st = h->exec_command( h->data, cmd, count );
+ g_free( cmd_text );
+
+ /* If the connection broke, don't continue. We don't even exist anymore. */
+ if( !st )
+ return( 0 );
+
+ if( h->msglen )
+ h->cmd_text = g_strndup( h->rxq, i );
+
+ /* Skip to the next non-emptyline */
+ while( i < h->rxlen && ( h->rxq[i] == '\r' || h->rxq[i] == '\n' ) ) i ++;
+
+ break;
+ }
+ }
+
+ /* If we reached the end of the buffer, there's still an incomplete command there.
+ Return and wait for more data. */
+ if( i == h->rxlen && h->rxq[i-1] != '\r' && h->rxq[i-1] != '\n' )
+ break;
+ }
+ else
+ {
+ char *msg, **cmd;
+ int count;
+
+ /* Do we have the complete message already? */
+ if( h->msglen > h->rxlen )
+ break;
+
+ msg = g_strndup( h->rxq, h->msglen );
+ cmd = msn_linesplit( h->cmd_text );
+ for( count = 0; cmd[count]; count ++ );
+
+ st = h->exec_message( h->data, msg, h->msglen, cmd, count );
+ g_free( msg );
+ g_free( h->cmd_text );
+ h->cmd_text = NULL;
+
+ if( !st )
+ return( 0 );
+
+ i = h->msglen;
+ h->msglen = 0;
+ }
+
+ /* More data after this block? */
+ if( i < h->rxlen )
+ {
+ char *tmp;
+
+ tmp = g_memdup( h->rxq + i, h->rxlen - i );
+ g_free( h->rxq );
+ h->rxq = tmp;
+ h->rxlen -= i;
+ i = 0;
+ }
+ else
+ /* If not, reset the rx queue and get lost. */
+ {
+ g_free( h->rxq );
+ h->rxq = g_new0( char, 1 );
+ h->rxlen = 0;
+ return( 1 );
+ }
+ }
+
+ return( 1 );
+}
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