Changes in protocols/jabber/jabber_util.c [9143aeb:89d736a]

File:

• protocols/jabber/jabber_util.c (modified) (11 diffs)

protocols/jabber/jabber_util.c

@@ -23 +23 @@
 
 #include "jabber.h"
+#include "md5.h"
+#include "base64.h"
 
 static unsigned int next_id = 1;
@@ -134 +136 @@
         struct jabber_data *jd = ic->proto_data;
         struct jabber_cache_entry *entry = g_new0( struct jabber_cache_entry, 1 );
-        char *id;
-        
-        id = g_strdup_printf( "%s%05x", jd->cached_id_prefix, ( next_id++ ) & 0xfffff );
+        md5_state_t id_hash;
+        md5_byte_t id_sum[16];
+        char *id, *asc_hash;
+        
+        next_id ++;
+        
+        id_hash = jd->cached_id_prefix;
+        md5_append( &id_hash, (md5_byte_t*) &next_id, sizeof( next_id ) );
+        md5_finish( &id_hash, id_sum );
+        asc_hash = base64_encode( id_sum, 12 );
+        
+        id = g_strdup_printf( "%s%s", JABBER_CACHED_ID, asc_hash );
         xt_add_attr( node, "id", id );
         g_free( id );
+        g_free( asc_hash );
         
         entry->node = node;
@@ -184 +196 @@
         
         if( ( s = xt_find_attr( node, "id" ) ) == NULL ||
-            strncmp( s, jd->cached_id_prefix, strlen( jd->cached_id_prefix ) ) != 0 )
+            strncmp( s, JABBER_CACHED_ID, strlen( JABBER_CACHED_ID ) ) != 0 )
         {
                 /* Silently ignore it, without an ID (or a non-cache
@@ -196 +208 @@
         if( entry == NULL )
         {
+                /*
+                There's no longer an easy way to see if we generated this
+                one or someone else, and there's a ten-minute timeout anyway,
+                so meh.
+                
                 imcb_log( ic, "Warning: Received %s-%s packet with unknown/expired ID %s!",
                               node->name, xt_find_attr( node, "type" ) ? : "(no type)", s );
+                */
         }
         else if( entry->func )
@@ -290 +308 @@
         len = strlen( orig );
         new = g_new( char, len + 1 );
-        for( i = 0; i < len; i ++ )
+        
+        /* So it turns out the /resource part is case sensitive. Yeah, and
+           it's Unicode but feck Unicode. :-P So stop once we see a slash. */
+        for( i = 0; i < len && orig[i] != '/' ; i ++ )
                 new[i] = tolower( orig[i] );
+        for( ; orig[i]; i ++ )
+                new[i] = orig[i];
         
         new[i] = 0;
@@ -334 +357 @@
                 {
                         /* Check for dupes. */
-                        if( g_strcasecmp( bi->resource, s + 1 ) == 0 )
+                        if( strcmp( bi->resource, s + 1 ) == 0 )
                         {
                                 *s = '/';
@@ -387 +410 @@
         if( ( s = strchr( jid, '/' ) ) )
         {
-                int none_found = 0;
+                int bare_exists = 0;
                 
                 *s = 0;
@@ -410 +433 @@
                         /* See if there's an exact match. */
                         for( ; bud; bud = bud->next )
-                                if( g_strcasecmp( bud->resource, s + 1 ) == 0 )
+                                if( strcmp( bud->resource, s + 1 ) == 0 )
                                         break;
                 }
                 else
                 {
-                        /* This hack is there to make sure that O_CREAT will
-                           work if there's already another resouce present
-                           for this JID, even if it's an unknown buddy. This
-                           is done to handle conferences properly. */
-                        none_found = 1;
-                        /* TODO(wilmer): Find out what I was thinking when I
-                           wrote this??? And then fix it. This makes me sad... */
-                }
-                
-                if( bud == NULL && ( flags & GET_BUDDY_CREAT ) && ( imcb_find_buddy( ic, jid ) || !none_found ) )
+                        /* This variable tells the if down here that the bare
+                           JID already exists and we should feel free to add
+                           more resources, if the caller asked for that. */
+                        bare_exists = 1;
+                }
+                
+                if( bud == NULL && ( flags & GET_BUDDY_CREAT ) &&
+                    ( !bare_exists || imcb_find_buddy( ic, jid ) ) )
                 {
                         *s = '/';
@@ -449 +470 @@
                         /* We want an exact match, so in thise case there shouldn't be a /resource. */
                         return NULL;
-                else if( ( bud->resource == NULL || bud->next == NULL ) )
+                else if( bud->resource == NULL || bud->next == NULL )
                         /* No need for selection if there's only one option. */
                         return bud;
@@ -525 +546 @@
                    matches), removing it is simple. (And the hash reference
                    should be removed too!) */
-                if( bud->next == NULL && ( ( s == NULL || bud->resource == NULL ) || g_strcasecmp( bud->resource, s + 1 ) == 0 ) )
+                if( bud->next == NULL &&
+                    ( ( s == NULL && bud->resource == NULL ) ||
+                      ( bud->resource && s && strcmp( bud->resource, s + 1 ) == 0 ) ) )
                 {
                         g_hash_table_remove( jd->buddies, bud->bare_jid );
@@ -548 +571 @@
                 {
                         for( bi = bud, prev = NULL; bi; bi = (prev=bi)->next )
-                                if( g_strcasecmp( bi->resource, s + 1 ) == 0 )
+                                if( strcmp( bi->resource, s + 1 ) == 0 )
                                         break;