glib/gio/gdocumentportal.c
Matthias Clasen d5efa64539 Deal with lack of O_CLOEXEC
Some platforms don't have it. We fall back to fcntl() in other
places, so do it here as well.

https://bugzilla.gnome.org/show_bug.cgi?id=769042
2016-07-21 11:54:14 -04:00

162 lines
4.3 KiB
C

/* GIO - GLib Input, Output and Streaming Library
*
* Copyright 2016 Endless Mobile, Inc.
*
* 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 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/>.
*/
#include "config.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "gdocumentportal.h"
#include "xdp-dbus.h"
#include "gstdio.h"
#ifdef G_OS_UNIX
#include "gunixfdlist.h"
#endif
#ifndef O_PATH
#define O_PATH 0
#endif
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#else
#define HAVE_O_CLOEXEC 1
#endif
static GXdpDocuments *documents;
static char *documents_mountpoint;
static gboolean
init_document_portal (void)
{
static gsize documents_inited = 0;
if (g_once_init_enter (&documents_inited))
{
GError *error = NULL;
GDBusConnection *connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (connection != NULL)
{
documents = gxdp_documents_proxy_new_sync (connection, 0,
"org.freedesktop.portal.Documents",
"/org/freedesktop/portal/documents",
NULL, &error);
if (documents != NULL)
{
gxdp_documents_call_get_mount_point_sync (documents,
&documents_mountpoint,
NULL, &error);
if (error != NULL)
{
g_warning ("Cannot get document portal mount point: %s", error->message);
g_error_free (error);
}
}
else
{
g_warning ("Cannot create document portal proxy: %s", error->message);
g_error_free (error);
}
g_object_unref (connection);
}
else
{
g_warning ("Cannot connect to session bus when initializing document portal: %s",
error->message);
g_error_free (error);
}
g_once_init_leave (&documents_inited, 1);
}
return (documents != NULL && documents_mountpoint != NULL);
}
char *
g_document_portal_add_document (GFile *file,
GError **error)
{
char *doc_path, *basename;
char *doc_id = NULL;
char *doc_uri = NULL;
char *path = NULL;
GUnixFDList *fd_list = NULL;
int fd, fd_in;
gboolean ret;
if (!init_document_portal ())
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Document portal is not available");
goto out;
}
path = g_file_get_path (file);
fd = g_open (path, O_PATH | O_CLOEXEC);
if (fd == -1)
{
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno),
"Failed to open %s", path);
goto out;
}
#ifndef HAVE_O_CLOEXEC
fcntl (fd, F_SETFD, FD_CLOEXEC);
#endif
fd_list = g_unix_fd_list_new ();
fd_in = g_unix_fd_list_append (fd_list, fd, error);
g_close (fd, NULL);
if (fd_in == -1)
goto out;
ret = gxdp_documents_call_add_sync (documents,
g_variant_new_handle (fd_in),
TRUE,
TRUE,
fd_list,
&doc_id,
NULL,
NULL,
error);
if (!ret)
goto out;
basename = g_path_get_basename (path);
doc_path = g_build_filename (documents_mountpoint, doc_id, basename, NULL);
g_free (basename);
doc_uri = g_filename_to_uri (doc_path, NULL, NULL);
g_free (doc_path);
out:
if (fd_list)
g_object_unref (fd_list);
g_free (path);
g_free (doc_id);
return doc_uri;
}