/* GIO - GLib Input, Output and Streaming Library
*
* Copyright 2017 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 .
*/
#include "config.h"
#include
#include
#include
#include
#include
#include "gopenuriportal.h"
#include "xdp-dbus.h"
#include "gtkwindowprivate.h"
#include "gtkprivate.h"
#include "gtkdialogerror.h"
#ifdef G_OS_UNIX
#include
#endif
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#else
#define HAVE_O_CLOEXEC 1
#endif
static GXdpOpenURI *openuri;
static gboolean
init_openuri_portal (void)
{
static gsize openuri_inited = 0;
if (g_once_init_enter (&openuri_inited))
{
GError *error = NULL;
GDBusConnection *connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (connection != NULL)
{
openuri = gxdp_open_uri_proxy_new_sync (connection, 0,
PORTAL_BUS_NAME,
PORTAL_OBJECT_PATH,
NULL, &error);
if (openuri == NULL)
{
g_warning ("Cannot create OpenURI portal proxy: %s", error->message);
g_error_free (error);
}
g_object_unref (connection);
}
else
{
g_warning ("Cannot connect to session bus when initializing OpenURI portal: %s",
error->message);
g_error_free (error);
}
g_once_init_leave (&openuri_inited, 1);
}
return openuri != NULL;
}
gboolean
g_openuri_portal_is_available (void)
{
return init_openuri_portal ();
}
enum {
XDG_DESKTOP_PORTAL_SUCCESS = 0,
XDG_DESKTOP_PORTAL_CANCELLED = 1,
XDG_DESKTOP_PORTAL_FAILED = 2
};
enum {
OPEN_URI = 0,
OPEN_FILE = 1,
OPEN_FOLDER = 2
};
typedef struct {
GtkWindow *parent;
GFile *file;
gboolean open_folder;
GDBusConnection *connection;
GCancellable *cancellable;
GTask *task;
char *handle;
guint signal_id;
glong cancel_handler;
int call;
} OpenUriData;
static void
open_uri_data_free (OpenUriData *data)
{
if (data->signal_id)
g_dbus_connection_signal_unsubscribe (data->connection, data->signal_id);
g_clear_object (&data->connection);
if (data->cancel_handler)
g_signal_handler_disconnect (data->cancellable, data->cancel_handler);
if (data->parent)
gtk_window_unexport_handle (data->parent);
g_clear_object (&data->parent);
g_clear_object (&data->file);
g_clear_object (&data->cancellable);
g_clear_object (&data->task);
g_free (data->handle);
g_free (data);
}
static void
response_received (GDBusConnection *connection,
const char *sender_name,
const char *object_path,
const char *interface_name,
const char *signal_name,
GVariant *parameters,
gpointer user_data)
{
GTask *task = user_data;
guint32 response;
g_variant_get (parameters, "(u@a{sv})", &response, NULL);
switch (response)
{
case XDG_DESKTOP_PORTAL_SUCCESS:
g_task_return_boolean (task, TRUE);
break;
case XDG_DESKTOP_PORTAL_CANCELLED:
g_task_return_new_error (task, GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_DISMISSED, "The portal dialog was dismissed by the user");
break;
case XDG_DESKTOP_PORTAL_FAILED:
default:
g_task_return_new_error (task, GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_FAILED, "The application launch failed");
break;
}
g_object_unref (task);
}
static void
open_call_done (GObject *source,
GAsyncResult *result,
gpointer user_data)
{
GXdpOpenURI *portal = GXDP_OPEN_URI (source);
GTask *task = user_data;
OpenUriData *data = g_task_get_task_data (task);
GError *error = NULL;
gboolean res;
char *path = NULL;
switch (data->call)
{
case OPEN_FILE:
res = gxdp_open_uri_call_open_file_finish (portal, &path, NULL, result, &error);
break;
case OPEN_FOLDER:
res = gxdp_open_uri_call_open_directory_finish (portal, &path, NULL, result, &error);
break;
case OPEN_URI:
res = gxdp_open_uri_call_open_uri_finish (portal, &path, result, &error);
break;
default:
g_assert_not_reached ();
break;
}
if (!res)
{
g_free (path);
g_task_return_error (task, error);
g_object_unref (task);
return;
}
if (g_strcmp0 (data->handle, path) != 0)
{
g_dbus_connection_signal_unsubscribe (data->connection, data->signal_id);
data->signal_id = g_dbus_connection_signal_subscribe (data->connection,
PORTAL_BUS_NAME,
PORTAL_REQUEST_INTERFACE,
"Response",
path,
NULL,
G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
response_received,
task,
NULL);
g_free (data->handle);
data->handle = g_strdup (path);
}
g_free (path);
}
static void
send_close (OpenUriData *data)
{
GDBusMessage *message;
GError *error = NULL;
message = g_dbus_message_new_method_call (PORTAL_BUS_NAME,
PORTAL_OBJECT_PATH,
PORTAL_REQUEST_INTERFACE,
"Close");
g_dbus_message_set_body (message, g_variant_new ("(o)", data->handle));
if (!g_dbus_connection_send_message (data->connection,
message,
G_DBUS_SEND_MESSAGE_FLAGS_NONE,
NULL, &error))
{
g_warning ("unable to send Close message: %s", error->message);
g_error_free (error);
}
g_object_unref (message);
}
static void
canceled (GCancellable *cancellable,
GTask *task)
{
OpenUriData *data = g_task_get_task_data (task);
send_close (data);
g_task_return_new_error (task,
GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_CANCELLED,
"The OpenURI portal call was cancelled by the application");
g_object_unref (task);
}
static void
open_uri (GFile *file,
gboolean open_folder,
const char *parent_window,
const char *activation_token,
GAsyncReadyCallback callback,
gpointer user_data)
{
OpenUriData *data = user_data;
GTask *task;
GVariant *opts = NULL;
int i;
GDBusConnection *connection;
GVariantBuilder opt_builder;
char *token;
char *sender;
connection = g_dbus_proxy_get_connection (G_DBUS_PROXY (openuri));
data->connection = g_object_ref (connection);
task = g_task_new (NULL, NULL, callback, user_data);
g_task_set_check_cancellable (task, FALSE);
g_task_set_task_data (task, user_data, NULL);
if (data->cancellable)
data->cancel_handler = g_signal_connect (data->cancellable, "cancelled", G_CALLBACK (canceled), task);
token = g_strdup_printf ("gtk%d", g_random_int_range (0, G_MAXINT));
sender = g_strdup (g_dbus_connection_get_unique_name (connection) + 1);
for (i = 0; sender[i]; i++)
if (sender[i] == '.')
sender[i] = '_';
data->handle = g_strdup_printf ("/org/freedesktop/portal/desktop/request/%s/%s", sender, token);
g_free (sender);
data->signal_id = g_dbus_connection_signal_subscribe (connection,
PORTAL_BUS_NAME,
PORTAL_REQUEST_INTERFACE,
"Response",
data->handle,
NULL,
G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
response_received,
task,
NULL);
g_variant_builder_init (&opt_builder, G_VARIANT_TYPE_VARDICT);
g_variant_builder_add (&opt_builder, "{sv}", "handle_token", g_variant_new_string (token));
g_free (token);
if (activation_token)
g_variant_builder_add (&opt_builder, "{sv}", "activation_token", g_variant_new_string (activation_token));
opts = g_variant_builder_end (&opt_builder);
if (g_file_is_native (file))
{
const char *path = NULL;
GUnixFDList *fd_list = NULL;
int fd, fd_id, errsv;
path = g_file_peek_path (file);
fd = g_open (path, O_RDONLY | O_CLOEXEC);
errsv = errno;
if (fd == -1)
{
g_task_return_new_error (task,
G_IO_ERROR, g_io_error_from_errno (errsv),
"Failed to open file");
g_object_unref (task);
return;
}
#ifndef HAVE_O_CLOEXEC
fcntl (fd, F_SETFD, FD_CLOEXEC);
#endif
fd_list = g_unix_fd_list_new_from_array (&fd, 1);
fd = -1;
fd_id = 0;
if (open_folder)
{
data->call = OPEN_FOLDER;
gxdp_open_uri_call_open_directory (openuri,
parent_window ? parent_window : "",
g_variant_new ("h", fd_id),
opts,
fd_list,
NULL,
open_call_done,
task);
}
else
{
data->call = OPEN_FILE;
gxdp_open_uri_call_open_file (openuri,
parent_window ? parent_window : "",
g_variant_new ("h", fd_id),
opts,
fd_list,
NULL,
open_call_done,
task);
}
g_object_unref (fd_list);
}
else
{
char *uri = g_file_get_uri (file);
data->call = OPEN_URI;
gxdp_open_uri_call_open_uri (openuri,
parent_window ? parent_window : "",
uri,
opts,
NULL,
open_call_done,
task);
g_free (uri);
}
}
static void
open_uri_done (GObject *source,
GAsyncResult *result,
gpointer user_data)
{
OpenUriData *data = user_data;
GError *error = NULL;
if (!g_task_propagate_boolean (G_TASK (result), &error))
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
g_error_free (error);
g_task_return_new_error (data->task,
GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_CANCELLED,
"The operation was cancelled by the application");
}
else
g_task_return_error (data->task, error);
}
else
g_task_return_boolean (data->task, TRUE);
open_uri_data_free (data);
}
static void
window_handle_exported (GtkWindow *window,
const char *handle,
gpointer user_data)
{
OpenUriData *data = user_data;
GdkDisplay *display;
GAppLaunchContext *context;
char *activation_token = NULL;
if (window)
display = gtk_widget_get_display (GTK_WIDGET (window));
else
display = gdk_display_get_default ();
/* FIXME
* Call the vfunc directly since g_app_launch_context_get_startup_notify_id
* has NULL checks.
*
* We should have a more direct way to do this.
*/
context = G_APP_LAUNCH_CONTEXT (gdk_display_get_app_launch_context (display));
activation_token = G_APP_LAUNCH_CONTEXT_GET_CLASS (context)->get_startup_notify_id (context, NULL, NULL);
g_object_unref (context);
open_uri (data->file, data->open_folder, handle, activation_token, open_uri_done, data);
g_free (activation_token);
}
void
g_openuri_portal_open_async (GFile *file,
gboolean open_folder,
GtkWindow *parent,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
OpenUriData *data;
if (!init_openuri_portal ())
{
g_task_report_new_error (NULL, callback, user_data, NULL,
GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_FAILED,
"The OpenURI portal is not available");
return;
}
data = g_new0 (OpenUriData, 1);
data->parent = parent ? g_object_ref (parent) : NULL;
data->file = g_object_ref (file);
data->open_folder = open_folder;
data->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
data->task = g_task_new (parent, cancellable, callback, user_data);
g_task_set_check_cancellable (data->task, FALSE);
g_task_set_source_tag (data->task, g_openuri_portal_open_async);
if (!parent || !gtk_window_export_handle (parent, window_handle_exported, data))
window_handle_exported (parent, NULL, data);
}
gboolean
g_openuri_portal_open_finish (GAsyncResult *result,
GError **error)
{
return g_task_propagate_boolean (G_TASK (result), error);
}