static gboolean
decompress_all (GConverter   *converter,
                GBytes       *data,
                GBytes      **out_uncompressed,
                GCancellable *cancellable,
                GError      **error)
{
  gboolean ret = FALSE;
  g_autoptr(GMemoryInputStream) memin = (GMemoryInputStream*)g_memory_input_stream_new_from_bytes (data);
  g_autoptr(GMemoryOutputStream) memout = (GMemoryOutputStream*)g_memory_output_stream_new (NULL, 0, g_realloc, g_free);
  g_autoptr(GInputStream) convin = g_converter_input_stream_new ((GInputStream*)memin, converter);

  {
    gssize n_bytes_written = g_output_stream_splice ((GOutputStream*)memout, convin,
                                                     G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE |
                                                     G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET,
                                                     cancellable, error);
      if (n_bytes_written < 0)
        goto out;
  }

  ret = TRUE;
  *out_uncompressed = g_memory_output_stream_steal_as_bytes (memout);
 out:
  return ret;
}
Example #2
0
static gboolean
load_snap_icon (GsApp *app, SnapdClient *client, SnapdSnap *snap, GCancellable *cancellable)
{
	const gchar *icon_url;
	g_autoptr(SnapdIcon) icon = NULL;
	g_autoptr(GInputStream) input_stream = NULL;
	g_autoptr(GdkPixbuf) pixbuf = NULL;
	g_autoptr(GError) error = NULL;

	icon_url = snapd_snap_get_icon (snap);
	if (icon_url == NULL || strcmp (icon_url, "") == 0)
		return FALSE;

	icon = snapd_client_get_icon_sync (client, gs_app_get_metadata_item (app, "snap::name"), cancellable, &error);
	if (icon == NULL) {
		g_warning ("Failed to load snap icon: %s", error->message);
		return FALSE;
	}

	input_stream = g_memory_input_stream_new_from_bytes (snapd_icon_get_data (icon));
	pixbuf = gdk_pixbuf_new_from_stream_at_scale (input_stream, 64, 64, TRUE, cancellable, &error);
	if (pixbuf == NULL) {
		g_warning ("Failed to decode snap icon %s: %s", icon_url, error->message);
		return FALSE;
	}
	gs_app_set_pixbuf (app, pixbuf);

	return TRUE;
}
Example #3
0
static gboolean
gtk_css_image_url_parse (GtkCssImage  *image,
                         GtkCssParser *parser)
{
  GtkCssImageUrl *self = GTK_CSS_IMAGE_URL (image);
  char *url, *scheme;

  url = gtk_css_parser_consume_url (parser);
  if (url == NULL)
    return FALSE;

  scheme = g_uri_parse_scheme (url);
  if (scheme && g_ascii_strcasecmp (scheme, "data") == 0)
    {
      GInputStream *stream;
      GdkPixbuf *pixbuf;
      GBytes *bytes;
      GError *error = NULL;

      bytes = gtk_css_data_url_parse (url, NULL, &error);
      if (bytes)
        {
          stream = g_memory_input_stream_new_from_bytes (bytes);
          pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, &error);
          g_object_unref (stream);
          if (pixbuf == NULL)
            {
              gtk_css_parser_emit_error (parser,
                                         gtk_css_parser_get_start_location (parser),
                                         gtk_css_parser_get_end_location (parser),
                                         error);
              g_clear_error (&error);
            }
          else
            {
              GdkTexture *texture = gdk_texture_new_for_pixbuf (pixbuf);
              self->loaded_image = gtk_css_image_paintable_new (GDK_PAINTABLE (texture), GDK_PAINTABLE (texture));
              g_object_unref (texture);
              g_object_unref (pixbuf);
            }
        }
    }
  else
    {
      self->file = gtk_css_parser_resolve_url (parser, url);
    }

  g_free (url);
  g_free (scheme);

  return TRUE;
}
Example #4
0
static GInputStream *
gdk_pixbuf_load (GLoadableIcon  *icon,
                 int             size,
                 char          **type,
                 GCancellable   *cancellable,
                 GError        **error)
{
  GInputStream *stream;
  GBytes *bytes;

  bytes = gdk_pixbuf_make_bytes (GDK_PIXBUF (icon), error);
  if (!bytes)
    return NULL;

  stream = g_memory_input_stream_new_from_bytes (bytes);
  g_bytes_unref (bytes);

  if (type)
    *type = g_strdup ("image/png");

  return stream;
}
/**
 * ostree_repo_static_delta_execute_offline:
 * @self: Repo
 * @dir_or_file: Path to a directory containing static delta data, or directly to the superblock
 * @skip_validation: If %TRUE, assume data integrity
 * @cancellable: Cancellable
 * @error: Error
 *
 * Given a directory representing an already-downloaded static delta
 * on disk, apply it, generating a new commit.  The directory must be
 * named with the form "FROM-TO", where both are checksums, and it
 * must contain a file named "superblock", along with at least one part.
 */
gboolean
ostree_repo_static_delta_execute_offline (OstreeRepo                    *self,
                                          GFile                         *dir_or_file,
                                          gboolean                       skip_validation,
                                          GCancellable                  *cancellable,
                                          GError                      **error)
{
  gboolean ret = FALSE;
  guint i, n;
  const char *dir_or_file_path = NULL;
  glnx_fd_close int meta_fd = -1;
  glnx_fd_close int dfd = -1;
  g_autoptr(GVariant) meta = NULL;
  g_autoptr(GVariant) headers = NULL;
  g_autoptr(GVariant) metadata = NULL;
  g_autoptr(GVariant) fallback = NULL;
  g_autofree char *to_checksum = NULL;
  g_autofree char *from_checksum = NULL;
  g_autofree char *basename = NULL;

  dir_or_file_path = gs_file_get_path_cached (dir_or_file);

  /* First, try opening it as a directory */
  dfd = glnx_opendirat_with_errno (AT_FDCWD, dir_or_file_path, TRUE);
  if (dfd < 0)
    {
      if (errno != ENOTDIR)
        {
          glnx_set_error_from_errno (error);
          goto out;
        }
      else
        {
          g_autofree char *dir = dirname (g_strdup (dir_or_file_path));
          basename = g_path_get_basename (dir_or_file_path);

          if (!glnx_opendirat (AT_FDCWD, dir, TRUE, &dfd, error))
            goto out;
        }
    }
  else
    basename = g_strdup ("superblock");

  meta_fd = openat (dfd, basename, O_RDONLY | O_CLOEXEC);
  if (meta_fd < 0)
    {
      glnx_set_error_from_errno (error);
      goto out;
    }
  
  if (!ot_util_variant_map_fd (meta_fd, 0, G_VARIANT_TYPE (OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT),
                               FALSE, &meta, error))
    goto out;

  /* Parsing OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT */

  metadata = g_variant_get_child_value (meta, 0);

  /* Write the to-commit object */
  {
    g_autoptr(GVariant) to_csum_v = NULL;
    g_autoptr(GVariant) from_csum_v = NULL;
    g_autoptr(GVariant) to_commit = NULL;
    gboolean have_to_commit;
    gboolean have_from_commit;

    to_csum_v = g_variant_get_child_value (meta, 3);
    if (!ostree_validate_structureof_csum_v (to_csum_v, error))
      goto out;
    to_checksum = ostree_checksum_from_bytes_v (to_csum_v);

    from_csum_v = g_variant_get_child_value (meta, 2);
    if (g_variant_n_children (from_csum_v) > 0)
      {
        if (!ostree_validate_structureof_csum_v (from_csum_v, error))
          goto out;
        from_checksum = ostree_checksum_from_bytes_v (from_csum_v);

        if (!ostree_repo_has_object (self, OSTREE_OBJECT_TYPE_COMMIT, from_checksum,
                                     &have_from_commit, cancellable, error))
          goto out;

        if (!have_from_commit)
          {
            g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                         "Commit %s, which is the delta source, is not in repository", from_checksum);
            goto out;
          }
      }

    if (!ostree_repo_has_object (self, OSTREE_OBJECT_TYPE_COMMIT, to_checksum,
                                 &have_to_commit, cancellable, error))
      goto out;
    
    if (!have_to_commit)
      {
        g_autofree char *detached_path = _ostree_get_relative_static_delta_path (from_checksum, to_checksum, "commitmeta");
        g_autoptr(GVariant) detached_data = NULL;

        detached_data = g_variant_lookup_value (metadata, detached_path, G_VARIANT_TYPE("a{sv}"));
        if (detached_data && !ostree_repo_write_commit_detached_metadata (self,
                                                                          to_checksum,
                                                                          detached_data,
                                                                          cancellable,
                                                                          error))
          goto out;

        to_commit = g_variant_get_child_value (meta, 4);
        if (!ostree_repo_write_metadata (self, OSTREE_OBJECT_TYPE_COMMIT,
                                         to_checksum, to_commit, NULL,
                                         cancellable, error))
          goto out;
      }
  }

  fallback = g_variant_get_child_value (meta, 7);
  if (g_variant_n_children (fallback) > 0)
    {
      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                   "Cannot execute delta offline: contains nonempty http fallback entries");
      goto out;
    }

  headers = g_variant_get_child_value (meta, 6);
  n = g_variant_n_children (headers);
  for (i = 0; i < n; i++)
    {
      guint32 version;
      guint64 size;
      guint64 usize;
      const guchar *csum;
      char checksum[OSTREE_SHA256_STRING_LEN+1];
      gboolean have_all;
      g_autoptr(GInputStream) part_in = NULL;
      g_autoptr(GVariant) inline_part_data = NULL;
      g_autoptr(GVariant) header = NULL;
      g_autoptr(GVariant) csum_v = NULL;
      g_autoptr(GVariant) objects = NULL;
      g_autoptr(GVariant) part = NULL;
      g_autofree char *deltapart_path = NULL;
      OstreeStaticDeltaOpenFlags delta_open_flags = 
        skip_validation ? OSTREE_STATIC_DELTA_OPEN_FLAGS_SKIP_CHECKSUM : 0;

      header = g_variant_get_child_value (headers, i);
      g_variant_get (header, "(u@aytt@ay)", &version, &csum_v, &size, &usize, &objects);

      if (version > OSTREE_DELTAPART_VERSION)
        {
          g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                       "Delta part has too new version %u", version);
          goto out;
        }

      if (!_ostree_repo_static_delta_part_have_all_objects (self, objects, &have_all,
                                                            cancellable, error))
        goto out;

      /* If we already have these objects, don't bother executing the
       * static delta.
       */
      if (have_all)
        continue;

      csum = ostree_checksum_bytes_peek_validate (csum_v, error);
      if (!csum)
        goto out;
      ostree_checksum_inplace_from_bytes (csum, checksum);

      deltapart_path =
        _ostree_get_relative_static_delta_part_path (from_checksum, to_checksum, i);

      inline_part_data = g_variant_lookup_value (metadata, deltapart_path, G_VARIANT_TYPE("(yay)"));
      if (inline_part_data)
        {
          g_autoptr(GBytes) inline_part_bytes = g_variant_get_data_as_bytes (inline_part_data);
          part_in = g_memory_input_stream_new_from_bytes (inline_part_bytes);

          /* For inline parts, we don't checksum, because it's
           * included with the metadata, so we're not trying to
           * protect against MITM or such.  Non-security related
           * checksums should be done at the underlying storage layer.
           */
          delta_open_flags |= OSTREE_STATIC_DELTA_OPEN_FLAGS_SKIP_CHECKSUM;

          if (!_ostree_static_delta_part_open (part_in, inline_part_bytes, 
                                               delta_open_flags,
                                               NULL,
                                               &part,
                                               cancellable, error))
            goto out;
        }
      else
        {
          g_autofree char *relpath = g_strdup_printf ("%u", i); /* TODO avoid malloc here */
          glnx_fd_close int part_fd = openat (dfd, relpath, O_RDONLY | O_CLOEXEC);
          if (part_fd < 0)
            {
              glnx_set_error_from_errno (error);
              g_prefix_error (error, "Opening deltapart '%s': ", deltapart_path);
              goto out;
            }

          part_in = g_unix_input_stream_new (part_fd, FALSE);

          if (!_ostree_static_delta_part_open (part_in, NULL, 
                                               delta_open_flags,
                                               checksum,
                                               &part,
                                               cancellable, error))
            goto out;
        }

      if (!_ostree_static_delta_part_execute (self, objects, part, skip_validation,
                                              NULL, cancellable, error))
        {
          g_prefix_error (error, "Executing delta part %i: ", i);
          goto out;
        }
    }

  ret = TRUE;
 out:
  return ret;
}
gboolean
rpmostree_compose_builtin_sign (int            argc,
                                char         **argv,
                                GCancellable  *cancellable,
                                GError       **error)
{
  gboolean ret = FALSE;
  GOptionContext *context = g_option_context_new ("- Use rpm-sign to sign an OSTree commit");
  gs_unref_object GFile *repopath = NULL;
  gs_unref_object OstreeRepo *repo = NULL;
  gs_unref_object GFile *tmp_commitdata_file = NULL;
  gs_unref_object GFileIOStream *tmp_sig_stream = NULL;
  gs_unref_object GFile *tmp_sig_file = NULL;
  gs_unref_object GFileIOStream *tmp_commitdata_stream = NULL;
  GOutputStream *tmp_commitdata_output = NULL;
  gs_unref_object GInputStream *commit_data = NULL;
  gs_free char *checksum = NULL;
  gs_unref_variant GVariant *commit_variant = NULL;
  gs_unref_bytes GBytes *commit_bytes = NULL;
  
  if (!rpmostree_option_context_parse (context, option_entries, &argc, &argv, error))
    goto out;

  if (!(opt_repo_path && opt_key_id && opt_rev))
    {
      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                   "Missing required argument");
      goto out;
    }

  repopath = g_file_new_for_path (opt_repo_path);
  repo = ostree_repo_new (repopath);
  if (!ostree_repo_open (repo, cancellable, error))
    goto out;

  if (!ostree_repo_resolve_rev (repo, opt_rev, FALSE, &checksum, error))
    goto out;

  if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT,
                                 checksum, &commit_variant, error))
    goto out;

  commit_bytes = g_variant_get_data_as_bytes (commit_variant);
  commit_data = (GInputStream*)g_memory_input_stream_new_from_bytes (commit_bytes);
  
  tmp_commitdata_file = g_file_new_tmp ("tmpsigXXXXXX", &tmp_commitdata_stream,
                                       error);
  if (!tmp_commitdata_file)
    goto out;

  tmp_commitdata_output = (GOutputStream*)g_io_stream_get_output_stream ((GIOStream*)tmp_commitdata_stream);
  if (g_output_stream_splice ((GOutputStream*)tmp_commitdata_output,
                              commit_data,
                              G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE |
                              G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET,
                              cancellable, error) < 0)
    goto out;

  tmp_sig_file = g_file_new_tmp ("tmpsigoutXXXXXX", &tmp_sig_stream, error);
  if (!tmp_sig_file)
    goto out;

  (void) g_io_stream_close ((GIOStream*)tmp_sig_stream, NULL, NULL);
                                  
  if (!gs_subprocess_simple_run_sync (NULL, GS_SUBPROCESS_STREAM_DISPOSITION_NULL,
                                      cancellable, error,
                                      "rpm-sign",
                                      "--key", opt_key_id,
                                      "--detachsign", gs_file_get_path_cached (tmp_commitdata_file),
                                      "--output", gs_file_get_path_cached (tmp_sig_file),
                                      NULL))
    goto out;

  {
    char *sigcontent = NULL;
    gsize len;
    gs_unref_bytes GBytes *sigbytes = NULL;

    if (!g_file_load_contents (tmp_sig_file, cancellable, &sigcontent, &len, NULL,
                               error))
      goto out;

    sigbytes = g_bytes_new_take (sigcontent, len);

    if (!ostree_repo_append_gpg_signature (repo, checksum, sigbytes,
                                           cancellable, error))
      goto out;
  }

  g_print ("Successfully signed OSTree commit=%s with key=%s\n",
           checksum, opt_key_id);
  
  ret = TRUE;
 out:
  if (tmp_commitdata_file)
    (void) gs_file_unlink (tmp_commitdata_file, NULL, NULL);
  if (tmp_sig_file)
    (void) gs_file_unlink (tmp_sig_file, NULL, NULL);
  return ret;
}
/**
 * gs_plugin_file_to_app:
 */
gboolean
gs_plugin_file_to_app (GsPlugin *plugin,
		       GList **list,
		       GFile *file,
		       GCancellable *cancellable,
		       GError **error)
{
	g_autofree gchar *content_type = NULL;
	g_autofree gchar *id_prefixed = NULL;
	g_autoptr(GBytes) appstream_gz = NULL;
	g_autoptr(GBytes) icon_data = NULL;
	g_autoptr(GBytes) metadata = NULL;
	g_autoptr(GsApp) app = NULL;
	g_autoptr(XdgAppBundleRef) xref_bundle = NULL;
	const gchar *mimetypes[] = {
		"application/vnd.xdgapp",
		NULL };

	/* does this match any of the mimetypes we support */
	content_type = gs_utils_get_content_type (file, cancellable, error);
	if (content_type == NULL)
		return FALSE;
	if (!g_strv_contains (mimetypes, content_type))
		return TRUE;

	/* load bundle */
	xref_bundle = xdg_app_bundle_ref_new (file, error);
	if (xref_bundle == NULL) {
		g_prefix_error (error, "error loading bundle: ");
		return FALSE;
	}

	/* create a virtual ID */
	id_prefixed = gs_plugin_xdg_app_build_id (XDG_APP_REF (xref_bundle));

	/* load metadata */
	app = gs_app_new (id_prefixed);
	gs_app_set_kind (app, AS_APP_KIND_DESKTOP);
	gs_app_set_state (app, AS_APP_STATE_AVAILABLE_LOCAL);
	gs_app_set_size_installed (app, xdg_app_bundle_ref_get_installed_size (xref_bundle));
	gs_plugin_xdg_app_set_metadata (app, XDG_APP_REF (xref_bundle));
	metadata = xdg_app_bundle_ref_get_metadata (xref_bundle);
	if (!gs_plugin_xdg_app_set_app_metadata (app,
						 g_bytes_get_data (metadata, NULL),
						 g_bytes_get_size (metadata),
						 error))
		return FALSE;

	/* load AppStream */
	appstream_gz = xdg_app_bundle_ref_get_appstream (xref_bundle);
	if (appstream_gz != NULL) {
		g_autoptr(GZlibDecompressor) decompressor = NULL;
		g_autoptr(GInputStream) stream_gz = NULL;
		g_autoptr(GInputStream) stream_data = NULL;
		g_autoptr(GBytes) appstream = NULL;
		g_autoptr(AsStore) store = NULL;
		g_autofree gchar *id = NULL;
		AsApp *item;

		/* decompress data */
		decompressor = g_zlib_decompressor_new (G_ZLIB_COMPRESSOR_FORMAT_GZIP);
		stream_gz = g_memory_input_stream_new_from_bytes (appstream_gz);
		if (stream_gz == NULL)
			return FALSE;
		stream_data = g_converter_input_stream_new (stream_gz,
							    G_CONVERTER (decompressor));

		appstream = g_input_stream_read_bytes (stream_data,
						       0x100000, /* 1Mb */
						       cancellable,
						       error);
		if (appstream == NULL)
			return FALSE;
		store = as_store_new ();
		if (!as_store_from_bytes (store, appstream, cancellable, error))
			return FALSE;

		/* find app */
		id = g_strdup_printf ("%s.desktop", gs_app_get_xdgapp_name (app));
		item = as_store_get_app_by_id (store, id);
		if (item == NULL) {
			g_set_error (error,
				     GS_PLUGIN_ERROR,
				     GS_PLUGIN_ERROR_FAILED,
				     "application %s not found",
				     id);
			return FALSE;
		}

		/* copy details from AppStream to app */
		if (!gs_appstream_refine_app (plugin, app, item, error))
			return FALSE;
	}

	/* load icon */
	icon_data = xdg_app_bundle_ref_get_icon (xref_bundle,
						 64 * gs_plugin_get_scale (plugin));
	if (icon_data == NULL)
		icon_data = xdg_app_bundle_ref_get_icon (xref_bundle, 64);
	if (icon_data != NULL) {
		g_autoptr(GInputStream) stream_icon = NULL;
		g_autoptr(GdkPixbuf) pixbuf = NULL;
		stream_icon = g_memory_input_stream_new_from_bytes (icon_data);
		pixbuf = gdk_pixbuf_new_from_stream (stream_icon, cancellable, error);
		if (pixbuf == NULL)
			return FALSE;
		gs_app_set_pixbuf (app, pixbuf);
	} else {
		g_autoptr(AsIcon) icon = NULL;
		icon = as_icon_new ();
		as_icon_set_kind (icon, AS_ICON_KIND_STOCK);
		as_icon_set_name (icon, "application-x-executable");
		gs_app_set_icon (app, icon);
	}

	/* not quite true: this just means we can update this specific app */
	if (xdg_app_bundle_ref_get_origin (xref_bundle))
		gs_app_add_quirk (app, AS_APP_QUIRK_HAS_SOURCE);

	g_debug ("created local app: %s", gs_app_to_string (app));
	gs_app_list_add (list, app);
	return TRUE;
}
gboolean
install_bundle (XdgAppDir *dir,
                GOptionContext *context,
                int argc, char **argv,
                GCancellable *cancellable,
                GError **error)
{
  gboolean ret = FALSE;
  g_autoptr(GFile) deploy_base = NULL;
  g_autoptr(GFile) file = NULL;
  g_autoptr(GFile) gpg_tmp_file = NULL;
  const char *filename;
  g_autofree char *ref = NULL;
  g_autofree char *origin = NULL;
  gboolean created_deploy_base = FALSE;
  gboolean added_remote = FALSE;
  g_autofree char *to_checksum = NULL;
  g_auto(GStrv) parts = NULL;
  g_autoptr(GBytes) gpg_data = NULL;
  g_autofree char *remote = NULL;
  OstreeRepo *repo;
  g_autoptr(OstreeGpgVerifyResult) gpg_result = NULL;
  g_autoptr(GError) my_error = NULL;
  g_auto(GLnxLockFile) lock = GLNX_LOCK_FILE_INIT;

  if (argc < 2)
    return usage_error (context, "bundle filename must be specified", error);

  filename = argv[1];

  repo = xdg_app_dir_get_repo (dir);

  if (!xdg_app_supports_bundles (repo))
    return xdg_app_fail (error, "Your version of ostree is too old to support single-file bundles");

  if (!xdg_app_dir_lock (dir, &lock,
                         cancellable, error))
    goto out;

  file = g_file_new_for_commandline_arg (filename);

  {
    g_autoptr(GVariant) delta = NULL;
    g_autoptr(GVariant) metadata = NULL;
    g_autoptr(GBytes) bytes = NULL;
    g_autoptr(GVariant) to_csum_v = NULL;
    g_autoptr(GVariant) gpg_value = NULL;

    GMappedFile *mfile = g_mapped_file_new (gs_file_get_path_cached (file), FALSE, error);

    if (mfile == NULL)
      return FALSE;

    bytes = g_mapped_file_get_bytes (mfile);
    g_mapped_file_unref (mfile);

    delta = g_variant_new_from_bytes (G_VARIANT_TYPE (OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT), bytes, FALSE);
    g_variant_ref_sink (delta);

    to_csum_v = g_variant_get_child_value (delta, 3);
    if (!ostree_validate_structureof_csum_v (to_csum_v, error))
      return FALSE;

    to_checksum = ostree_checksum_from_bytes_v (to_csum_v);

    metadata = g_variant_get_child_value (delta, 0);

    if (!g_variant_lookup (metadata, "ref", "s", &ref))
      return xdg_app_fail (error, "Invalid bundle, no ref in metadata");

    if (!g_variant_lookup (metadata, "origin", "s", &origin))
      origin = NULL;

    gpg_value = g_variant_lookup_value (metadata, "gpg-keys", G_VARIANT_TYPE("ay"));
    if (gpg_value)
      {
        gsize n_elements;
        const char *data = g_variant_get_fixed_array (gpg_value, &n_elements, 1);

        gpg_data = g_bytes_new (data, n_elements);
      }
  }

  parts = xdg_app_decompose_ref (ref, error);
  if (parts == NULL)
    return FALSE;

  deploy_base = xdg_app_dir_get_deploy_dir (dir, ref);
  if (g_file_query_exists (deploy_base, cancellable))
    return xdg_app_fail (error, "%s branch %s already installed", parts[1], parts[3]);

  if (opt_gpg_file != NULL)
    {
      /* Override gpg_data from file */
      gpg_data = read_gpg_data (cancellable, error);
      if (gpg_data == NULL)
        return FALSE;
    }

  /* Add a remote for later updates */
  if (origin != NULL)
    {
      g_auto(GStrv) remotes = ostree_repo_remote_list (repo, NULL);
      int version = 0;

      do
        {
          g_autofree char *name = NULL;
          if (version == 0)
            name = g_strdup_printf ("%s-origin", parts[1]);
          else
            name = g_strdup_printf ("%s-%d-origin", parts[1], version);
          version++;

          if (remotes == NULL ||
              !g_strv_contains ((const char * const *) remotes, name))
            remote = g_steal_pointer (&name);
        }
      while (remote == NULL);
    }

  if (!ostree_repo_prepare_transaction (repo, NULL, cancellable, error))
    return FALSE;

  ostree_repo_transaction_set_ref (repo, remote, ref, to_checksum);

  if (!ostree_repo_static_delta_execute_offline (repo,
                                                 file,
                                                 FALSE,
                                                 cancellable,
                                                 error))
    return FALSE;

  if (gpg_data)
    {
      g_autoptr(GFileIOStream) stream;
      GOutputStream *o;

      gpg_tmp_file = g_file_new_tmp (".xdg-app-XXXXXX", &stream, error);
      if (gpg_tmp_file == NULL)
        return FALSE;
      o = g_io_stream_get_output_stream (G_IO_STREAM (stream));
      if (!g_output_stream_write_all (o, g_bytes_get_data (gpg_data, NULL), g_bytes_get_size (gpg_data), NULL, cancellable, error))
        return FALSE;
    }

  gpg_result = ostree_repo_verify_commit_ext (repo,
                                              to_checksum,
                                              NULL, gpg_tmp_file, cancellable, &my_error);

  if (gpg_tmp_file)
    g_file_delete (gpg_tmp_file, cancellable, NULL);

  if (gpg_result == NULL)
    {
      /* NOT_FOUND means no gpg signature, we ignore this *if* there
       * is no gpg key specified in the bundle or by the user */
      if (g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND) &&
          gpg_data == NULL)
        g_clear_error (&my_error);
      else
        {
          g_propagate_error (error, g_steal_pointer (&my_error));
          return FALSE;
        }
    }
  else
    {
      /* If there is no valid gpg signature we fail, unless there is no gpg
         key specified (on the command line or in the file) because then we
         trust the source bundle. */
      if (ostree_gpg_verify_result_count_valid (gpg_result) == 0  &&
          gpg_data != NULL)
        return xdg_app_fail (error, "GPG signatures found, but none are in trusted keyring");
    }

  if (!ostree_repo_commit_transaction (repo, NULL, cancellable, error))
    return FALSE;

  if (!g_file_make_directory_with_parents (deploy_base, cancellable, error))
    return FALSE;

  /* From here we need to goto out on error, to clean up */
  created_deploy_base = TRUE;

  if (remote)
    {
      g_autoptr(GVariantBuilder) optbuilder = g_variant_builder_new (G_VARIANT_TYPE ("a{sv}"));
      g_autofree char *basename = g_file_get_basename (file);

      g_variant_builder_add (optbuilder, "{s@v}",
                             "xa.title",
                             g_variant_new_variant (g_variant_new_string (basename)));

      g_variant_builder_add (optbuilder, "{s@v}",
                             "xa.noenumerate",
                             g_variant_new_variant (g_variant_new_boolean (TRUE)));

      g_variant_builder_add (optbuilder, "{s@v}",
                             "xa.prio",
                             g_variant_new_variant (g_variant_new_string ("0")));

      if (!ostree_repo_remote_add (repo,
                                   remote, origin, g_variant_builder_end (optbuilder), cancellable, error))
        goto out;

      added_remote = TRUE;

      if (gpg_data)
        {
          g_autoptr(GInputStream) gpg_data_as_stream = g_memory_input_stream_new_from_bytes (gpg_data);

          if (!ostree_repo_remote_gpg_import (repo, remote, gpg_data_as_stream,
                                              NULL, NULL, cancellable, error))
            goto out;
        }

      if (!xdg_app_dir_set_origin (dir, ref, remote, cancellable, error))
        goto out;
    }

  if (!xdg_app_dir_deploy (dir, ref, to_checksum, cancellable, error))
    goto out;

  if (!xdg_app_dir_make_current_ref (dir, ref, cancellable, error))
    goto out;

  if (strcmp (parts[0], "app") == 0)
    {
      if (!xdg_app_dir_update_exports (dir, parts[1], cancellable, error))
        goto out;
    }

  glnx_release_lock_file (&lock);

  xdg_app_dir_cleanup_removed (dir, cancellable, NULL);

  if (!xdg_app_dir_mark_changed (dir, error))
    goto out;

  ret = TRUE;

 out:
  if (created_deploy_base && !ret)
    gs_shutil_rm_rf (deploy_base, cancellable, NULL);

  if (added_remote && !ret)
    ostree_repo_remote_delete (repo, remote, NULL, NULL);

  return ret;
}
Example #9
0
/**
 * ot_file_replace_contents_at:
 * 
 * Like g_file_replace_contents(), except using a fd-relative
 * directory, and optionally enforces use of fdatasync().
 */
gboolean
ot_file_replace_contents_at (int             dfd,
                             const char     *path,
                             GBytes         *contents,
                             gboolean        datasync,
                             GCancellable   *cancellable,
                             GError        **error)
{
  gboolean ret = FALSE;
  int fd;
  g_autofree char *tmpname = NULL;
  g_autoptr(GOutputStream) stream = NULL;
  g_autoptr(GInputStream) instream = NULL;

  if (!gs_file_open_in_tmpdir_at (dfd, 0644,
                                  &tmpname, &stream,
                                  cancellable, error))
    goto out;

  g_assert (G_IS_FILE_DESCRIPTOR_BASED (stream));
  fd = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (stream));

  instream = g_memory_input_stream_new_from_bytes (contents);

  if (g_bytes_get_size (contents) > 0)
    {
      int r = posix_fallocate (fd, 0, g_bytes_get_size (contents));
      if (r != 0)
        {
          /* posix_fallocate is a weird deviation from errno standards */
          errno = r;
          glnx_set_error_from_errno (error);
          goto out;
        }
    }

  if (g_output_stream_splice (stream, instream, 0,
                              cancellable, error) < 0)
    goto out;

  if (datasync && fdatasync (fd) != 0)
    {
      glnx_set_error_from_errno (error);
      goto out;
    }

  if (!g_output_stream_close (stream, cancellable, error))
    goto out;

  if (renameat (dfd, tmpname, dfd, path) == -1)
    {
      glnx_set_error_from_errno (error);
      goto out;
    }

  g_clear_pointer (&tmpname, g_free);

  ret = TRUE;
 out:
  if (tmpname)
    (void) unlinkat (dfd, tmpname, 0);
  return ret;
}
Example #10
0
static gboolean
as_store_cab_from_bytes_with_origin (AsStore *store,
				     GBytes *bytes,
				     const gchar *basename,
				     GCancellable *cancellable,
				     GError **error)
{
	g_autoptr(GCabCabinet) gcab = NULL;
	g_autoptr(GError) error_local = NULL;
	g_autofree gchar *tmp_path = NULL;
	g_autoptr(GFile) tmp_file = NULL;
	g_autoptr(GInputStream) input_stream = NULL;
	g_autoptr(GPtrArray) filelist = NULL;
	guint i;

	/* open the file */
	gcab = gcab_cabinet_new ();
	input_stream = g_memory_input_stream_new_from_bytes (bytes);
	if (!gcab_cabinet_load (gcab, input_stream, NULL, &error_local)) {
		g_set_error (error,
			     AS_STORE_ERROR,
			     AS_STORE_ERROR_FAILED,
			     "cannot load .cab file: %s",
			     error_local->message);
		return FALSE;
	}

	/* decompress to /tmp */
	tmp_path = g_dir_make_tmp ("appstream-glib-XXXXXX", &error_local);
	if (tmp_path == NULL) {
		g_set_error (error,
			     AS_STORE_ERROR,
			     AS_STORE_ERROR_FAILED,
			     "failed to create temp dir: %s",
			     error_local->message);
		return FALSE;
	}

	/* extract the entire cab file */
	filelist = g_ptr_array_new_with_free_func (g_free);
	tmp_file = g_file_new_for_path (tmp_path);
	if (!gcab_cabinet_extract_simple (gcab, tmp_file,
					  as_store_cab_cb,
					  filelist, NULL, &error_local)) {
		g_set_error (error,
			     AS_STORE_ERROR,
			     AS_STORE_ERROR_FAILED,
			     "failed to extract .cab file: %s",
			     error_local->message);
		return FALSE;
	}

	/* loop through each file looking for components */
	for (i = 0; i < filelist->len; i++) {
		AsRelease *rel;
		AsChecksum *csum_tmp;
		const gchar *fn;
		g_autofree gchar *tmp_fn = NULL;
		g_autoptr(AsApp) app = NULL;

		/* debug */
		fn = g_ptr_array_index (filelist, i);
		g_debug ("found file %u\t%s", i, fn);

		/* if inf or metainfo, add */
		if (as_format_guess_kind (fn) != AS_FORMAT_KIND_METAINFO)
			continue;

		tmp_fn = g_build_filename (tmp_path, fn, NULL);
		app = as_app_new ();
		if (!as_app_parse_file (app, tmp_fn,
					AS_APP_PARSE_FLAG_NONE, &error_local)) {
			g_set_error (error,
				     AS_STORE_ERROR,
				     AS_STORE_ERROR_FAILED,
				     "%s could not be loaded: %s",
				     tmp_fn,
				     error_local->message);
			return FALSE;
		}

		/* only process the latest release */
		rel = as_app_get_release_default (app);
		if (rel == NULL) {
			g_set_error_literal (error,
					     AS_STORE_ERROR,
					     AS_STORE_ERROR_FAILED,
					     "no releases in metainfo file");
			return FALSE;
		}

		/* ensure we always have a container checksum */
		csum_tmp = as_release_get_checksum_by_target (rel, AS_CHECKSUM_TARGET_CONTAINER);
		if (csum_tmp == NULL) {
			g_autoptr(AsChecksum) csum = NULL;
			csum = as_checksum_new ();
			as_checksum_set_target (csum, AS_CHECKSUM_TARGET_CONTAINER);
			if (basename != NULL)
				as_checksum_set_filename (csum, basename);
			as_release_add_checksum (rel, csum);
		}

		/* set the container checksum */
		if (!as_store_cab_verify_checksum_cab (rel, bytes, error))
			return FALSE;

		/* this is the size of the cab file itself */
		if (as_release_get_size (rel, AS_SIZE_KIND_DOWNLOAD) == 0)
			as_release_set_size (rel, AS_SIZE_KIND_DOWNLOAD,
					     g_bytes_get_size (bytes));

		/* ensure we always have a content checksum */
		csum_tmp = as_release_get_checksum_by_target (rel, AS_CHECKSUM_TARGET_CONTENT);
		if (csum_tmp == NULL) {
			g_autoptr(AsChecksum) csum = NULL;
			csum = as_checksum_new ();
			as_checksum_set_target (csum, AS_CHECKSUM_TARGET_CONTENT);
			/* if this isn't true, a firmware needs to set in
			 * the metainfo.xml file something like:
			 * <checksum target="content" filename="FLASH.ROM"/> */
			as_checksum_set_filename (csum, "firmware.bin");
			as_release_add_checksum (rel, csum);
			csum_tmp = csum;
		}
		if (!as_store_cab_verify_checksum_fw (csum_tmp, tmp_path, error))
			return FALSE;

		/* set blobs */
		if (!as_store_cab_set_release_blobs (rel, tmp_path, error))
			return FALSE;

		/* add any component to the store */
		as_store_add_app (store, app);
	}

	/* delete temp files */
	for (i = 0; i < filelist->len; i++) {
		const gchar *fn;
		g_autofree gchar *tmp_fn = NULL;
		fn = g_ptr_array_index (filelist, i);
		tmp_fn = g_build_filename (tmp_path, fn, NULL);
		g_unlink (tmp_fn);
	}
	g_rmdir (tmp_path);

	/* success */
	return TRUE;
}
int
rpmostree_compose_builtin_sign (int            argc,
                                char         **argv,
                                GCancellable  *cancellable,
                                GError       **error)
{
  int exit_status = EXIT_FAILURE;
  GOptionContext *context = g_option_context_new ("- Use rpm-sign to sign an OSTree commit");
  g_autoptr(GFile) repopath = NULL;
  glnx_unref_object OstreeRepo *repo = NULL;
  g_autoptr(GFile) tmp_commitdata_file = NULL;
  g_autoptr(GFileIOStream) tmp_sig_stream = NULL;
  g_autoptr(GFile) tmp_sig_file = NULL;
  g_autoptr(GFileIOStream) tmp_commitdata_stream = NULL;
  GOutputStream *tmp_commitdata_output = NULL;
  g_autoptr(GInputStream) commit_data = NULL;
  g_autofree char *checksum = NULL;
  g_autoptr(GVariant) commit_variant = NULL;
  g_autoptr(GBytes) commit_bytes = NULL;
  
  if (!rpmostree_option_context_parse (context,
                                       option_entries,
                                       &argc, &argv,
                                       RPM_OSTREE_BUILTIN_FLAG_LOCAL_CMD,
                                       cancellable,
                                       NULL,
                                       error))
    goto out;

  if (!(opt_repo_path && opt_key_id && opt_rev))
    {
      rpmostree_usage_error (context, "Missing required argument", error);
      goto out;
    }

  repopath = g_file_new_for_path (opt_repo_path);
  repo = ostree_repo_new (repopath);
  if (!ostree_repo_open (repo, cancellable, error))
    goto out;

  if (!ostree_repo_resolve_rev (repo, opt_rev, FALSE, &checksum, error))
    goto out;

  if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT,
                                 checksum, &commit_variant, error))
    goto out;

  commit_bytes = g_variant_get_data_as_bytes (commit_variant);
  commit_data = (GInputStream*)g_memory_input_stream_new_from_bytes (commit_bytes);
  
  tmp_commitdata_file = g_file_new_tmp ("tmpsigXXXXXX", &tmp_commitdata_stream,
                                       error);
  if (!tmp_commitdata_file)
    goto out;

  tmp_commitdata_output = (GOutputStream*)g_io_stream_get_output_stream ((GIOStream*)tmp_commitdata_stream);
  if (g_output_stream_splice ((GOutputStream*)tmp_commitdata_output,
                              commit_data,
                              G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE |
                              G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET,
                              cancellable, error) < 0)
    goto out;

  tmp_sig_file = g_file_new_tmp ("tmpsigoutXXXXXX", &tmp_sig_stream, error);
  if (!tmp_sig_file)
    goto out;

  (void) g_io_stream_close ((GIOStream*)tmp_sig_stream, NULL, NULL);
                                  

  { const char *child_argv[] = { "rpm-sign",
                                 "--key", opt_key_id,
                                 "--detachsign", gs_file_get_path_cached (tmp_commitdata_file),
                                 "--output", gs_file_get_path_cached (tmp_sig_file),
                                 NULL };
    int estatus;
    
    if (!g_spawn_sync (NULL, (char**)child_argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
                       NULL, NULL, &estatus, error))
      goto out;
    if (!g_spawn_check_exit_status (estatus, error))
      goto out;
  }

  {
    char *sigcontent = NULL;
    gsize len;
    g_autoptr(GBytes) sigbytes = NULL;

    if (!g_file_load_contents (tmp_sig_file, cancellable, &sigcontent, &len, NULL,
                               error))
      goto out;

    sigbytes = g_bytes_new_take (sigcontent, len);

    if (!ostree_repo_append_gpg_signature (repo, checksum, sigbytes,
                                           cancellable, error))
      goto out;
  }

  g_print ("Successfully signed OSTree commit=%s with key=%s\n",
           checksum, opt_key_id);
  
  exit_status = EXIT_SUCCESS;

 out:
  if (tmp_commitdata_file)
    (void) unlink (gs_file_get_path_cached (tmp_commitdata_file));
  if (tmp_sig_file)
    (void) unlink (gs_file_get_path_cached (tmp_sig_file));

  return exit_status;
}