Add new method qof_backend_get_registered_access_method_list() which

returns a GList of the access_method strings from the registered backends.
Modify xaccResolveURL() to get and use this list rather than using hard-wired
"gda" and "postgres" access methods.  "http", "https", "file" and "xml" are
still hard-wired in xaccResolveURL().



git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/branches/gda-dev2@17321 57a11ea4-9604-0410-9ed3-97b8803252fd

lib/libqof/qof/qofsession.c

@@ -63,6 +63,20 @@ qof_backend_register_provider (QofBackendProvider *prov)
 	provider_list = g_slist_append (provider_list, prov);
 }
 
+GList*
+qof_backend_get_registered_access_method_list(void)
+{
+	GList* list = NULL;
+	GSList* node;
+
+	for( node = provider_list; node != NULL; node = node->next ) {
+		QofBackendProvider *prov = node->data;
+		list = g_list_append( list, (gchar*)prov->access_method );
+	}
+
+	return list;
+}
+
 /* ====================================================================== */
 
 /* hook routines */

lib/libqof/qof/qofsession.h

@@ -436,5 +436,10 @@ gboolean qof_session_export (QofSession *tmp_session,
                              QofSession *real_session,
                              QofPercentageFunc percentage_func);
 
+/** Return a list of strings for the registered access methods. The owner is
+ *  responsible for freeing the list but not the strings.
+ */
+GList* qof_backend_get_registered_access_method_list(void);
+
 #endif /* QOF_SESSION_H */
 /** @} */

src/engine/gnc-filepath-utils.c

@@ -285,6 +285,9 @@ xaccResolveFilePath (const char * filefrag)
 char * 
 xaccResolveURL (const char * pathfrag)
 {
+  GList* list;
+  GList* node;
+
   /* seriously invalid */
   if (!pathfrag) return NULL;
 
@@ -296,13 +299,28 @@ xaccResolveURL (const char * pathfrag)
    */
 
   if (!g_ascii_strncasecmp (pathfrag, "http://", 7)      ||
-      !g_ascii_strncasecmp (pathfrag, "https://", 8)     ||
-      !g_ascii_strncasecmp (pathfrag, "gda://", 6)		 ||
-      !g_ascii_strncasecmp (pathfrag, "postgres://", 11))
+      !g_ascii_strncasecmp (pathfrag, "https://", 8))
   {
     return g_strdup(pathfrag);
   }
 
+  /* Check the URL against the list of registered access methods */
+  list = qof_backend_get_registered_access_method_list();
+  for( node = list; node != NULL; node = node->next ) {
+  	const gchar* access_method = node->data;
+	if( strcmp( access_method, "file" ) != 0 &&
+			strcmp( access_method, "xml" ) != 0 ) {
+		gchar s[30];
+		sprintf( s, "%s://", access_method );
+		if( !g_ascii_strncasecmp( pathfrag, s, strlen(s) ) ) {
+			g_list_free(list);
+    		return g_strdup(pathfrag);
+		}
+	}
+  }
+  g_list_free(list);
+
+  /* "file:" and "xml:" are handled specially */
   if (!g_ascii_strncasecmp (pathfrag, "file:", 5)) {
     return (xaccResolveFilePath (pathfrag));
   }