mirror of
https://github.com/flatpak/flatpak.git
synced 2026-03-27 11:22:00 -04:00
bd846c389f
In order to reuse in flatpak-oci-signatures.c, move: local_open_file => flatpak_open_file_at local_load_file => flatpak_load_file_at
386 lines
14 KiB
C
386 lines
14 KiB
C
/*
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* Copyright © 2014 Red Hat, Inc
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __FLATPAK_UTILS_H__
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#define __FLATPAK_UTILS_H__
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#include <string.h>
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#include "libglnx.h"
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#include <gio/gio.h>
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#include <gio/gunixfdlist.h>
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#include "flatpak-error.h"
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#include "flatpak-glib-backports-private.h"
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#define XCONCATENATE(x, y) x ## y
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#define CONCATENATE(x, y) XCONCATENATE(x, y)
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#define FLATPAK_UNIQUE_NAME(base) CONCATENATE(base, __COUNTER__)
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#define AUTOFS_SUPER_MAGIC 0x0187
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#define FLATPAK_XA_CACHE_VERSION 2
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/* version 1 added extra data download size */
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/* version 2 added ot.ts timestamps (to new format) */
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#define FLATPAK_XA_SUMMARY_VERSION 1
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/* version 0/missing is standard ostree summary,
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* version 1 is compact format with inline cache and no deltas
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*/
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/* Thse are key names in the per-ref metadata in the summary */
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#define OSTREE_COMMIT_TIMESTAMP "ostree.commit.timestamp"
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#define OSTREE_COMMIT_TIMESTAMP2 "ot.ts" /* Shorter version of the above */
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#define FLATPAK_SUMMARY_DIFF_HEADER "xadf"
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/* https://bugzilla.gnome.org/show_bug.cgi?id=766370 */
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#if !GLIB_CHECK_VERSION (2, 49, 3)
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#define FLATPAK_VARIANT_BUILDER_INITIALIZER {{0, }}
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#define FLATPAK_VARIANT_DICT_INITIALIZER {{0, }}
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#else
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#define FLATPAK_VARIANT_BUILDER_INITIALIZER {{{0, }}}
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#define FLATPAK_VARIANT_DICT_INITIALIZER {{{0, }}}
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#endif
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/* https://github.com/GNOME/libglnx/pull/38
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* Note by using #define rather than wrapping via a static inline, we
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* don't have to re-define attributes like G_GNUC_PRINTF.
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*/
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#define flatpak_fail glnx_throw
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gboolean flatpak_fail_error (GError **error,
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FlatpakError code,
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const char *fmt,
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...) G_GNUC_PRINTF (3, 4);
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gint flatpak_strcmp0_ptr (gconstpointer a,
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gconstpointer b);
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/* Sometimes this is /var/run which is a symlink, causing weird issues when we pass
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* it as a path into the sandbox */
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char * flatpak_get_real_xdg_runtime_dir (void);
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char * flatpak_get_os_release_id (void);
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char * flatpak_get_os_release_version_id (void);
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gboolean flatpak_has_path_prefix (const char *str,
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const char *prefix);
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const char * flatpak_path_match_prefix (const char *pattern,
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const char *path);
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const char * flatpak_get_arch (void);
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const char ** flatpak_get_arches (void);
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gboolean flatpak_is_linux32_arch (const char *arch);
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const char *flatpak_get_compat_arch (const char *kernel_arch);
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const char *flatpak_get_compat_arch_reverse (const char *compat_arch);
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const char ** flatpak_get_gl_drivers (void);
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gboolean flatpak_extension_matches_reason (const char *extension_id,
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const char *reason,
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gboolean default_value);
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const char * flatpak_get_bwrap (void);
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gboolean flatpak_bwrap_is_unprivileged (void);
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char **flatpak_strv_sort_by_length (const char * const *strv);
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char **flatpak_strv_merge (char **strv1,
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char **strv2);
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char **flatpak_subpaths_merge (char **subpaths1,
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char **subpaths2);
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GBytes * flatpak_read_stream (GInputStream * in,
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gboolean null_terminate,
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GError **error);
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gboolean flatpak_bytes_save (GFile *dest,
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GBytes *bytes,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_variant_save (GFile *dest,
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GVariant *variant,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_remove_dangling_symlinks (GFile *dir,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_g_ptr_array_contains_string (GPtrArray *array,
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const char *str);
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/* Returns the first string in subset that is not in strv */
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static inline const gchar *
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g_strv_subset (const gchar * const *strv,
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const gchar * const *subset)
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{
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int i;
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for (i = 0; subset[i]; i++)
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{
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const char *key;
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key = subset[i];
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if (!g_strv_contains (strv, key))
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return key;
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}
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return NULL;
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}
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static inline void
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flatpak_auto_unlock_helper (GMutex **mutex)
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{
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if (*mutex)
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g_mutex_unlock (*mutex);
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}
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static inline GMutex *
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flatpak_auto_lock_helper (GMutex *mutex)
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{
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if (mutex)
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g_mutex_lock (mutex);
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return mutex;
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}
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gboolean flatpak_switch_symlink_and_remove (const char *symlink_path,
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const char *target,
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GError **error);
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char *flatpak_keyfile_get_string_non_empty (GKeyFile *keyfile,
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const char *group,
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const char *key);
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GBytes *flatpak_zlib_compress_bytes (GBytes *bytes,
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int level,
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GError **error);
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GBytes *flatpak_zlib_decompress_bytes (GBytes *bytes,
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GError **error);
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void flatpak_parse_extension_with_tag (const char *extension,
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char **name,
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char **tag);
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gboolean flatpak_argument_needs_quoting (const char *arg);
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char * flatpak_quote_argv (const char *argv[],
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gssize len);
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gboolean flatpak_file_arg_has_suffix (const char *arg,
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const char *suffix);
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const char *flatpak_file_get_path_cached (GFile *file);
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GFile *flatpak_build_file_va (GFile *base,
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va_list args);
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GFile *flatpak_build_file (GFile *base,
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...) G_GNUC_NULL_TERMINATED;
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gboolean flatpak_openat_noatime (int dfd,
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const char *name,
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int *ret_fd,
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GCancellable *cancellable,
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GError **error);
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typedef enum {
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FLATPAK_CP_FLAGS_NONE = 0,
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FLATPAK_CP_FLAGS_MERGE = 1 << 0,
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FLATPAK_CP_FLAGS_NO_CHOWN = 1 << 1,
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FLATPAK_CP_FLAGS_MOVE = 1 << 2,
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} FlatpakCpFlags;
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gboolean flatpak_cp_a (GFile *src,
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GFile *dest,
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FlatpakCpFlags flags,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_mkdir_p (GFile *dir,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_rm_rf (GFile *dir,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_canonicalize_permissions (int parent_dfd,
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const char *rel_path,
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int uid,
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int gid,
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GError **error);
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gboolean flatpak_file_rename (GFile *from,
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GFile *to,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_open_in_tmpdir_at (int tmpdir_fd,
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int mode,
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char *tmpl,
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GOutputStream **out_stream,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_buffer_to_sealed_memfd_or_tmpfile (GLnxTmpfile *tmpf,
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const char *name,
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const char *str,
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size_t len,
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GError **error);
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static inline void
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flatpak_temp_dir_destroy (void *p)
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{
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GFile *dir = p;
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if (dir)
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{
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flatpak_rm_rf (dir, NULL, NULL);
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g_object_unref (dir);
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}
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}
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typedef GFile FlatpakTempDir;
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (FlatpakTempDir, flatpak_temp_dir_destroy)
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typedef GMainContext GMainContextPopDefault;
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static inline void
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flatpak_main_context_pop_default_destroy (void *p)
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{
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GMainContext *main_context = p;
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if (main_context)
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{
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/* Ensure we don't leave some cleanup callbacks unhandled as we will never iterate this context again. */
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while (g_main_context_pending (main_context))
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g_main_context_iteration (main_context, TRUE);
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g_main_context_pop_thread_default (main_context);
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g_main_context_unref (main_context);
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}
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}
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static inline GMainContextPopDefault *
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flatpak_main_context_new_default (void)
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{
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GMainContext *main_context = g_main_context_new ();
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g_main_context_push_thread_default (main_context);
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return main_context;
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}
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (GMainContextPopDefault, flatpak_main_context_pop_default_destroy)
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#define AUTOLOCK(name) G_GNUC_UNUSED __attribute__((cleanup (flatpak_auto_unlock_helper))) GMutex * G_PASTE (auto_unlock, __LINE__) = flatpak_auto_lock_helper (&G_LOCK_NAME (name))
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char * flatpak_filter_glob_to_regexp (const char *glob, gboolean runtime_only, GError **error);
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gboolean flatpak_parse_filters (const char *data,
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GRegex **allow_refs_out,
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GRegex **deny_refs_out,
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GError **error);
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gboolean flatpak_filters_allow_ref (GRegex *allow_refs,
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GRegex *deny_refs,
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const char *ref);
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gboolean flatpak_allocate_tmpdir (int tmpdir_dfd,
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const char *tmpdir_relpath,
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const char *tmpdir_prefix,
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char **tmpdir_name_out,
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int *tmpdir_fd_out,
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GLnxLockFile *file_lock_out,
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gboolean *reusing_dir_out,
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GCancellable *cancellable,
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GError **error);
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int flatpak_open_file_at (int dfd,
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const char *subpath,
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struct stat *st_buf,
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GCancellable *cancellable,
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GError **error);
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GBytes *flatpak_load_file_at (int dfd,
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const char *subpath,
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GCancellable *cancellable,
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GError **error);
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gboolean flatpak_check_required_version (const char *ref,
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GKeyFile *metakey,
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GError **error);
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int flatpak_levenshtein_distance (const char *s,
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gssize ls,
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const char *t,
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gssize lt);
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char * flatpak_dconf_path_for_app_id (const char *app_id);
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gboolean flatpak_dconf_path_is_similar (const char *path1,
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const char *path2);
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static inline void
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null_safe_g_ptr_array_unref (gpointer data)
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{
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g_clear_pointer (&data, g_ptr_array_unref);
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}
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GStrv flatpak_parse_env_block (const char *data,
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gsize length,
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GError **error);
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int flatpak_envp_cmp (const void *p1,
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const void *p2);
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gboolean flatpak_str_is_integer (const char *s);
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gboolean flatpak_uri_equal (const char *uri1,
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const char *uri2);
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typedef enum {
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FLATPAK_ESCAPE_DEFAULT = 0,
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FLATPAK_ESCAPE_ALLOW_NEWLINES = 1 << 0,
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FLATPAK_ESCAPE_DO_NOT_QUOTE = 1 << 1,
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} FlatpakEscapeFlags;
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char * flatpak_escape_string (const char *s,
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FlatpakEscapeFlags flags);
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gboolean flatpak_validate_path_characters (const char *path,
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GError **error);
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gboolean running_under_sudo_root (void);
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void flatpak_set_debugging (gboolean debugging);
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gboolean flatpak_is_debugging (void);
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#ifdef INCLUDE_INTERNAL_TESTS
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typedef void (*flatpak_test_fn) (void);
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void flatpak_add_test (const char *path, flatpak_test_fn fn);
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#define FLATPAK_INTERNAL_TEST(path, fn) \
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__attribute__((constructor)) static void \
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FLATPAK_UNIQUE_NAME(internal_test_) (void) { \
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flatpak_add_test (path, fn); \
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}
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#else
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#define FLATPAK_INTERNAL_TEST(path, fn)
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#endif
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FLATPAK_EXTERN
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void flatpak_add_all_tests (void);
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#define FLATPAK_MESSAGE_ID "c7b39b1e006b464599465e105b361485"
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#endif /* __FLATPAK_UTILS_H__ */
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