/* 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 2.1 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/>.
*/
#include "config.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.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, errsv;
gboolean ret;
if (!init_document_portal ())
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_INITIALIZED,
"Document portal is not available");
goto out;
}
path = g_file_get_path (file);
fd = g_open (path, O_PATH | O_CLOEXEC);
errsv = errno;
if (fd == -1)
{
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
"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;
}
/* Flags accepted by org.freedesktop.portal.Documents.AddFull */
enum {
XDP_ADD_FLAGS_REUSE_EXISTING = (1 << 0),
XDP_ADD_FLAGS_PERSISTENT = (1 << 1),
XDP_ADD_FLAGS_AS_NEEDED_BY_APP = (1 << 2),
XDP_ADD_FLAGS_FLAGS_ALL = ((1 << 3) - 1)
};
GList *
g_document_portal_add_documents (GList *uris,
const char *app_id,
GError **error)
{
int length;
GList *ruris = NULL;
gboolean *as_is;
GVariantBuilder builder;
GUnixFDList *fd_list = NULL;
GList *l;
gsize i, j;
const char *permissions[] = { "read", "write", NULL };
char **doc_ids = NULL;
GVariant *extra_out = NULL;
if (!init_document_portal ())
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_INITIALIZED,
"Document portal is not available");
return NULL;
}
length = g_list_length (uris);
as_is = g_new0 (gboolean, length);
g_variant_builder_init (&builder, G_VARIANT_TYPE ("ah"));
fd_list = g_unix_fd_list_new ();
for (l = uris, i = 0; l; l = l->next, i++)
{
const char *uri = l->data;
int idx = -1;
g_autofree char *path = NULL;
path = g_filename_from_uri (uri, NULL, NULL);
if (path != NULL)
{
int fd;
fd = g_open (path, O_CLOEXEC | O_PATH);
if (fd >= 0)
{
#ifndef HAVE_O_CLOEXEC
fcntl (fd, F_SETFD, FD_CLOEXEC);
#endif
idx = g_unix_fd_list_append (fd_list, fd, NULL);
close (fd);
}
}
if (idx != -1)
g_variant_builder_add (&builder, "h", idx);
else
as_is[i] = TRUE;
}
if (g_unix_fd_list_get_length (fd_list) > 0)
{
if (!gxdp_documents_call_add_full_sync (documents,
g_variant_builder_end (&builder),
XDP_ADD_FLAGS_AS_NEEDED_BY_APP,
app_id,
permissions,
fd_list,
&doc_ids,
&extra_out,
NULL,
NULL,
error))
goto out;
for (l = uris, i = 0, j = 0; l; l = l->next, i++)
{
const char *uri = l->data;
char *ruri;
if (as_is[i]) /* use as-is, not a file uri */
{
ruri = g_strdup (uri);
}
else if (strcmp (doc_ids[j], "") == 0) /* not rewritten */
{
ruri = g_strdup (uri);
j++;
}
else
{
char *basename = g_path_get_basename (uri + strlen ("file:"));
char *doc_path = g_build_filename (documents_mountpoint, doc_ids[j], basename, NULL);
ruri = g_strconcat ("file:", doc_path, NULL);
g_free (basename);
g_free (doc_path);
j++;
}
ruris = g_list_prepend (ruris, ruri);
}
ruris = g_list_reverse (ruris);
}
else
{
ruris = g_list_copy_deep (uris, (GCopyFunc)g_strdup, NULL);
}
out:
g_clear_object (&fd_list);
g_clear_pointer (&extra_out, g_variant_unref);
g_clear_pointer (&doc_ids, g_strfreev);
g_free (as_is);
return ruris;
}