Add daemon side query attribute support

Original git commit by Alexander Larsson <alexl@redhat.com> at 1183735279 +0200

svn path=/trunk/; revision=678

1 files changed, 168 insertions, 0 deletions

diff --git a/daemon/gvfsjobqueryattributes.c b/daemon/gvfsjobqueryattributes.c
new file mode 100644
index 00000000..ae3b1d2c
--- /dev/null
+++ b/daemon/gvfsjobqueryattributes.c
@@ -0,0 +1,168 @@
+#include <config.h>
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <glib.h>
+#include <dbus/dbus.h>
+#include <glib/gi18n.h>
+#include "gvfsjobmove.h"
+#include "gdbusutils.h"
+#include "gvfsdaemonprotocol.h"
+#include "gvfsjobqueryattributes.h"
+
+G_DEFINE_TYPE (GVfsJobQueryAttributes, g_vfs_job_query_attributes, G_VFS_TYPE_JOB_DBUS);
+
+static void         run          (GVfsJob        *job);
+static gboolean     try          (GVfsJob        *job);
+static DBusMessage *create_reply (GVfsJob        *job,
+				  DBusConnection *connection,
+				  DBusMessage    *message);
+
+static void
+g_vfs_job_query_attributes_finalize (GObject *object)
+{
+  GVfsJobQueryAttributes *job;
+
+  job = G_VFS_JOB_QUERY_ATTRIBUTES (object);
+
+  g_free (job->filename);
+  if (job->list)
+    g_file_attribute_info_list_free (job->list);
+  
+  if (G_OBJECT_CLASS (g_vfs_job_query_attributes_parent_class)->finalize)
+    (*G_OBJECT_CLASS (g_vfs_job_query_attributes_parent_class)->finalize) (object);
+}
+
+static void
+g_vfs_job_query_attributes_class_init (GVfsJobQueryAttributesClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GVfsJobClass *job_class = G_VFS_JOB_CLASS (klass);
+  GVfsJobDBusClass *job_dbus_class = G_VFS_JOB_DBUS_CLASS (klass);
+  
+  gobject_class->finalize = g_vfs_job_query_attributes_finalize;
+  job_class->run = run;
+  job_class->try = try;
+  job_dbus_class->create_reply = create_reply;
+}
+
+static void
+g_vfs_job_query_attributes_init (GVfsJobQueryAttributes *job)
+{
+}
+
+GVfsJob *
+g_vfs_job_query_attributes_new (DBusConnection *connection,
+				DBusMessage *message,
+				GVfsBackend *backend,
+				gboolean namespaces)
+{
+  GVfsJobQueryAttributes *job;
+  DBusMessage *reply;
+  DBusError derror;
+  const gchar *path = NULL;
+  gint path_len;
+  
+  dbus_error_init (&derror);
+  if (!dbus_message_get_args (message, &derror, 
+			      DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
+			      &path, &path_len,
+			      0))
+    {
+      reply = dbus_message_new_error (message,
+				      derror.name,
+                                      derror.message);
+      dbus_error_free (&derror);
+
+      dbus_connection_send (connection, reply, NULL);
+      return NULL;
+    }
+
+  job = g_object_new (G_VFS_TYPE_JOB_QUERY_ATTRIBUTES,
+		      "message", message,
+		      "connection", connection,
+		      NULL);
+
+  job->backend = backend;
+  job->filename = g_strndup (path, path_len);
+  job->namespaces = namespaces;
+
+  return G_VFS_JOB (job);
+}
+
+static void
+run (GVfsJob *job)
+{
+  GVfsJobQueryAttributes *op_job = G_VFS_JOB_QUERY_ATTRIBUTES (job);
+  GVfsBackendClass *class = G_VFS_BACKEND_GET_CLASS (op_job->backend);
+  void (*cb) (GVfsBackend *backend,
+	      GVfsJobQueryAttributes *job,
+	      const char *filename);
+
+  if (op_job->namespaces)
+    cb = class->query_writable_namespaces;
+  else
+    cb = class->query_settable_attributes;
+
+  if (cb == NULL)
+    {
+      g_vfs_job_failed (job, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
+			_("Operation not supported by backend"));
+      return;
+    }
+      
+  cb (op_job->backend,
+      op_job,
+      op_job->filename);
+}
+
+static gboolean
+try (GVfsJob *job)
+{
+  GVfsJobQueryAttributes *op_job = G_VFS_JOB_QUERY_ATTRIBUTES (job);
+  GVfsBackendClass *class = G_VFS_BACKEND_GET_CLASS (op_job->backend);
+  gboolean (*cb) (GVfsBackend *backend,
+		  GVfsJobQueryAttributes *job,
+		  const char *filename);
+
+  if (op_job->namespaces)
+    cb = class->try_query_writable_namespaces;
+  else
+    cb = class->try_query_settable_attributes;
+
+  if (cb == NULL)
+    return FALSE;
+      
+  return cb (op_job->backend,
+	     op_job,
+	     op_job->filename);
+}
+
+void
+g_vfs_job_query_attributes_set_list (GVfsJobQueryAttributes *job,
+				     GFileAttributeInfoList *list)
+{
+  job->list = g_file_attribute_info_list_dup (list);
+}
+
+/* Might be called on an i/o thread */
+static DBusMessage *
+create_reply (GVfsJob *job,
+	      DBusConnection *connection,
+	      DBusMessage *message)
+{
+  GVfsJobQueryAttributes *op_job = G_VFS_JOB_QUERY_ATTRIBUTES (job);
+  DBusMessage *reply;
+  DBusMessageIter iter;
+
+  reply = dbus_message_new_method_return (message);
+
+  dbus_message_iter_init_append (reply, &iter);
+  _g_dbus_append_attribute_info_list (&iter, 
+				      op_job->list);
+  
+  return reply;
+}