mirror of https://gitee.com/openkylin/glib2.0.git
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
|
*
|
|
* Copyright 2022 Canonical Ltd
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gsandbox.h"
|
|
|
|
#include <string.h>
|
|
|
|
#define SNAP_CONFINEMENT_PREFIX "confinement:"
|
|
|
|
static gboolean
|
|
is_flatpak (void)
|
|
{
|
|
const char *flatpak_info = "/.flatpak-info";
|
|
gboolean found;
|
|
|
|
#ifdef G_PORTAL_SUPPORT_TEST
|
|
char *test_key_file =
|
|
g_build_filename (g_get_user_runtime_dir (), flatpak_info, NULL);
|
|
flatpak_info = test_key_file;
|
|
#endif
|
|
|
|
found = g_file_test (flatpak_info, G_FILE_TEST_EXISTS);
|
|
|
|
#ifdef G_PORTAL_SUPPORT_TEST
|
|
g_clear_pointer (&test_key_file, g_free);
|
|
#endif
|
|
|
|
return found;
|
|
}
|
|
|
|
static gchar *
|
|
get_snap_confinement (const char *snap_yaml,
|
|
GError **error)
|
|
{
|
|
char *confinement = NULL;
|
|
char *yaml_contents;
|
|
|
|
if (g_file_get_contents (snap_yaml, &yaml_contents, NULL, error))
|
|
{
|
|
const char *line = yaml_contents;
|
|
|
|
do
|
|
{
|
|
if (g_str_has_prefix (line, SNAP_CONFINEMENT_PREFIX))
|
|
break;
|
|
|
|
line = strchr (line, '\n');
|
|
if (line)
|
|
line += 1;
|
|
}
|
|
while (line != NULL);
|
|
|
|
if (line)
|
|
{
|
|
const char *start = line + strlen (SNAP_CONFINEMENT_PREFIX);
|
|
const char *end = strchr (start, '\n');
|
|
|
|
confinement =
|
|
g_strstrip (end ? g_strndup (start, end-start) : g_strdup (start));
|
|
}
|
|
|
|
g_free (yaml_contents);
|
|
}
|
|
|
|
return g_steal_pointer (&confinement);
|
|
}
|
|
|
|
static gboolean
|
|
is_snap (void)
|
|
{
|
|
GError *error = NULL;
|
|
const gchar *snap_path;
|
|
gchar *yaml_path;
|
|
char *confinement;
|
|
gboolean result;
|
|
|
|
snap_path = g_getenv ("SNAP");
|
|
if (snap_path == NULL)
|
|
return FALSE;
|
|
|
|
result = FALSE;
|
|
yaml_path = g_build_filename (snap_path, "meta", "snap.yaml", NULL);
|
|
confinement = get_snap_confinement (yaml_path, &error);
|
|
g_free (yaml_path);
|
|
|
|
/* Classic snaps are de-facto no sandboxed apps, so we can ignore them */
|
|
if (!error && g_strcmp0 (confinement, "classic") != 0)
|
|
result = TRUE;
|
|
|
|
g_clear_error (&error);
|
|
g_free (confinement);
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* glib_get_sandbox_type:
|
|
*
|
|
* Gets the type of sandbox this process is running inside.
|
|
*
|
|
* Checking for sandboxes may involve doing blocking I/O calls, but should not take
|
|
* any significant time.
|
|
*
|
|
* The sandbox will not change over the lifetime of the process, so calling this
|
|
* function once and reusing the result is valid.
|
|
*
|
|
* If this process is not sandboxed then @G_SANDBOX_TYPE_UNKNOWN will be returned.
|
|
* This is because this function only detects known sandbox types in #GSandboxType.
|
|
* It may be updated in the future if new sandboxes come into use.
|
|
*
|
|
* Returns: a #GSandboxType.
|
|
*/
|
|
GSandboxType
|
|
glib_get_sandbox_type (void)
|
|
{
|
|
if (is_flatpak ())
|
|
return G_SANDBOX_TYPE_FLATPAK;
|
|
else if (is_snap ())
|
|
return G_SANDBOX_TYPE_SNAP;
|
|
else
|
|
return G_SANDBOX_TYPE_UNKNOWN;
|
|
}
|