/* GDBus - GLib D-Bus Library

 *

 * Copyright (C) 2008-2010 Red Hat, Inc.

 *

 * SPDX-License-Identifier: LGPL-2.1-or-later

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General

 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.

 *

 * Author: David Zeuthen <davidz@redhat.com>

 */

#include "config.h"

#include "gdbusobject.h"

#include "gdbusobjectproxy.h"

#include "gdbusconnection.h"

#include "gdbusprivate.h"

#include "gdbusutils.h"

#include "gdbusproxy.h"

#include "glibintl.h"

/**

 * GDBusObjectProxy:

 *

 * A `GDBusObjectProxy` is an object used to represent a remote object

 * with one or more D-Bus interfaces. Normally, you don’t instantiate

 * a `GDBusObjectProxy` yourself — typically [class@Gio.DBusObjectManagerClient]

 * is used to obtain it.

 *

 * Since: 2.30

 */

struct _GDBusObjectProxyPrivate

{

  GMutex lock;

  GHashTable *map_name_to_iface;

  gchar *object_path;

  GDBusConnection *connection;

};

enum

{

  PROP_0,

  PROP_G_OBJECT_PATH,

  PROP_G_CONNECTION

};

static void dbus_object_interface_init (GDBusObjectIface *iface);

G_DEFINE_TYPE_WITH_CODE (GDBusObjectProxy, g_dbus_object_proxy, G_TYPE_OBJECT,

                         G_ADD_PRIVATE (GDBusObjectProxy)

                         G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_OBJECT, dbus_object_interface_init))

static void

g_dbus_object_proxy_finalize (GObject *object)

{

  GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);

  g_hash_table_unref (proxy->priv->map_name_to_iface);

  g_clear_object (&proxy->priv->connection);

  g_free (proxy->priv->object_path);

  g_mutex_clear (&proxy->priv->lock);

  if (G_OBJECT_CLASS (g_dbus_object_proxy_parent_class)->finalize != NULL)

    G_OBJECT_CLASS (g_dbus_object_proxy_parent_class)->finalize (object);

}

static void

g_dbus_object_proxy_get_property (GObject    *object,

                                  guint       prop_id,

                                  GValue     *value,

                                  GParamSpec *pspec)

{

  GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);

  switch (prop_id)

    {

    case PROP_G_OBJECT_PATH:

      g_mutex_lock (&proxy->priv->lock);

      g_value_set_string (value, proxy->priv->object_path);

      g_mutex_unlock (&proxy->priv->lock);

      break;

    case PROP_G_CONNECTION:

      g_value_set_object (value, g_dbus_object_proxy_get_connection (proxy));

      break;

    default:

      G_OBJECT_WARN_INVALID_PROPERTY_ID (proxy, prop_id, pspec);

      break;

    }

}

static void

g_dbus_object_proxy_set_property (GObject       *object,

                                  guint          prop_id,

                                  const GValue  *value,

                                  GParamSpec    *pspec)

{

  GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);

  switch (prop_id)

    {

    case PROP_G_OBJECT_PATH:

      g_mutex_lock (&proxy->priv->lock);

      proxy->priv->object_path = g_value_dup_string (value);

      g_mutex_unlock (&proxy->priv->lock);

      break;

    case PROP_G_CONNECTION:

      g_mutex_lock (&proxy->priv->lock);

      proxy->priv->connection = g_value_dup_object (value);

      g_mutex_unlock (&proxy->priv->lock);

      break;

    default:

      G_OBJECT_WARN_INVALID_PROPERTY_ID (proxy, prop_id, pspec);

      break;

    }

}

static void

g_dbus_object_proxy_class_init (GDBusObjectProxyClass *klass)

{

  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

  gobject_class->finalize     = g_dbus_object_proxy_finalize;

  gobject_class->set_property = g_dbus_object_proxy_set_property;

  gobject_class->get_property = g_dbus_object_proxy_get_property;

  /**

   * GDBusObjectProxy:g-object-path:

   *

   * The object path of the proxy.

   *

   * Since: 2.30

   */

  g_object_class_install_property (gobject_class,

                                   PROP_G_OBJECT_PATH,

                                   g_param_spec_string ("g-object-path", NULL, NULL,

                                                        NULL,

                                                        G_PARAM_READWRITE |

                                                        G_PARAM_CONSTRUCT_ONLY |

                                                        G_PARAM_STATIC_STRINGS));

  /**

   * GDBusObjectProxy:g-connection:

   *

   * The connection of the proxy.

   *

   * Since: 2.30

   */

  g_object_class_install_property (gobject_class,

                                   PROP_G_CONNECTION,

                                   g_param_spec_object ("g-connection", NULL, NULL,

                                                        G_TYPE_DBUS_CONNECTION,

                                                        G_PARAM_READWRITE |

                                                        G_PARAM_CONSTRUCT_ONLY |

                                                        G_PARAM_STATIC_STRINGS));

}

static void

g_dbus_object_proxy_init (GDBusObjectProxy *proxy)

{

  proxy->priv = g_dbus_object_proxy_get_instance_private (proxy);

  g_mutex_init (&proxy->priv->lock);

  proxy->priv->map_name_to_iface = g_hash_table_new_full (g_str_hash,

                                                          g_str_equal,

                                                          g_free,

                                                          (GDestroyNotify) g_object_unref);

}

static const gchar *

g_dbus_object_proxy_get_object_path (GDBusObject *object)

{

  GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);

  const gchar *ret;

  g_mutex_lock (&proxy->priv->lock);

  ret = proxy->priv->object_path;

  g_mutex_unlock (&proxy->priv->lock);

  return ret;

}

/**

 * g_dbus_object_proxy_get_connection:

 * @proxy: a #GDBusObjectProxy

 *

 * Gets the connection that @proxy is for.

 *

 * Returns: (transfer none): A #GDBusConnection. Do not free, the

 *   object is owned by @proxy.

 *

 * Since: 2.30

 */

GDBusConnection *

g_dbus_object_proxy_get_connection (GDBusObjectProxy *proxy)

{

  GDBusConnection *ret;

  g_return_val_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy), NULL);

  g_mutex_lock (&proxy->priv->lock);

  ret = proxy->priv->connection;

  g_mutex_unlock (&proxy->priv->lock);

  return ret;

}

static GDBusInterface *

g_dbus_object_proxy_get_interface (GDBusObject *object,

                                   const gchar *interface_name)

{

  GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);

  GDBusProxy *ret;

  g_return_val_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy), NULL);

  g_return_val_if_fail (g_dbus_is_interface_name (interface_name), NULL);

  g_mutex_lock (&proxy->priv->lock);

  ret = g_hash_table_lookup (proxy->priv->map_name_to_iface, interface_name);

  if (ret != NULL)

    g_object_ref (ret);

  g_mutex_unlock (&proxy->priv->lock);

  return (GDBusInterface *) ret; /* TODO: proper cast */

}

static GList *

g_dbus_object_proxy_get_interfaces (GDBusObject *object)

{

  GDBusObjectProxy *proxy = G_DBUS_OBJECT_PROXY (object);

  GList *ret;

  g_return_val_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy), NULL);

  ret = NULL;

  g_mutex_lock (&proxy->priv->lock);

  ret = g_hash_table_get_values (proxy->priv->map_name_to_iface);

  g_list_foreach (ret, (GFunc) g_object_ref, NULL);

  g_mutex_unlock (&proxy->priv->lock);

  return ret;

}

/* ---------------------------------------------------------------------------------------------------- */

/**

 * g_dbus_object_proxy_new:

 * @connection: a #GDBusConnection

 * @object_path: the object path

 *

 * Creates a new #GDBusObjectProxy for the given connection and

 * object path.

 *

 * Returns: a new #GDBusObjectProxy

 *

 * Since: 2.30

 */

GDBusObjectProxy *

g_dbus_object_proxy_new (GDBusConnection *connection,

                         const gchar     *object_path)

{

  g_return_val_if_fail (G_IS_DBUS_CONNECTION (connection), NULL);

  g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);

  return G_DBUS_OBJECT_PROXY (g_object_new (G_TYPE_DBUS_OBJECT_PROXY,

                                            "g-object-path", object_path,

                                            "g-connection", connection,

                                            NULL));

}

void

_g_dbus_object_proxy_add_interface (GDBusObjectProxy *proxy,

                                    GDBusProxy       *interface_proxy)

{

  const gchar *interface_name;

  GDBusProxy *interface_proxy_to_remove;

  g_return_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy));

  g_return_if_fail (G_IS_DBUS_PROXY (interface_proxy));

  g_mutex_lock (&proxy->priv->lock);

  interface_name = g_dbus_proxy_get_interface_name (interface_proxy);

  interface_proxy_to_remove = g_hash_table_lookup (proxy->priv->map_name_to_iface, interface_name);

  if (interface_proxy_to_remove != NULL)

    {

      g_object_ref (interface_proxy_to_remove);

      g_warn_if_fail (g_hash_table_remove (proxy->priv->map_name_to_iface, interface_name));

    }

  g_hash_table_insert (proxy->priv->map_name_to_iface,

                       g_strdup (interface_name),

                       g_object_ref (interface_proxy));

  g_object_ref (interface_proxy);

  g_mutex_unlock (&proxy->priv->lock);

  if (interface_proxy_to_remove != NULL)

    {

      g_signal_emit_by_name (proxy, "interface-removed", interface_proxy_to_remove);

      g_object_unref (interface_proxy_to_remove);

    }

  g_signal_emit_by_name (proxy, "interface-added", interface_proxy);

  g_object_unref (interface_proxy);

}

void

_g_dbus_object_proxy_remove_interface (GDBusObjectProxy *proxy,

                                       const gchar      *interface_name)

{

  GDBusProxy *interface_proxy;

  g_return_if_fail (G_IS_DBUS_OBJECT_PROXY (proxy));

  g_return_if_fail (g_dbus_is_interface_name (interface_name));

  g_mutex_lock (&proxy->priv->lock);

  interface_proxy = g_hash_table_lookup (proxy->priv->map_name_to_iface, interface_name);

  if (interface_proxy != NULL)

    {

      g_object_ref (interface_proxy);

      g_warn_if_fail (g_hash_table_remove (proxy->priv->map_name_to_iface, interface_name));

      g_mutex_unlock (&proxy->priv->lock);

      g_signal_emit_by_name (proxy, "interface-removed", interface_proxy);

      g_object_unref (interface_proxy);

    }

  else

    {

      g_mutex_unlock (&proxy->priv->lock);

    }

}

static void

dbus_object_interface_init (GDBusObjectIface *iface)

{

  iface->get_object_path       = g_dbus_object_proxy_get_object_path;

  iface->get_interfaces        = g_dbus_object_proxy_get_interfaces;

  iface->get_interface         = g_dbus_object_proxy_get_interface;

}