Add support for GNOME Shell extensions

2 files changed, 241 insertions, 0 deletions

diff --git a/libappstream-builder/plugins/Makefile.am b/libappstream-builder/plugins/Makefile.am
index b933ed2..861fa37 100644
--- a/libappstream-builder/plugins/Makefile.am
+++ b/libappstream-builder/plugins/Makefile.am
@@ -5,6 +5,7 @@ AM_CPPFLAGS =						\
 	$(LIBARCHIVE_CFLAGS)				\
 	$(SOUP_CFLAGS)					\
 	$(RPM_CFLAGS)					\
+	$(JSON_GLIB_CFLAGS)				\
 	$(FREETYPE_CFLAGS)				\
 	-I$(top_srcdir)/libappstream-glib		\
 	-I$(top_builddir)/libappstream-glib		\
@@ -16,6 +17,7 @@ plugindir = $(libdir)/asb-plugins-$(AS_PLUGIN_VERSION)
 plugin_LTLIBRARIES =					\
 	libasb_plugin_absorb.la				\
 	libasb_plugin_appdata.la			\
+	libasb_plugin_shell_extension.la		\
 	libasb_plugin_desktop.la			\
 	libasb_plugin_gettext.la			\
 	libasb_plugin_hardcoded.la
@@ -50,6 +52,11 @@ libasb_plugin_appdata_la_LIBADD = $(GLIB_LIBS) $(GDKPIXBUF_LIBS)
 libasb_plugin_appdata_la_LDFLAGS = -module -avoid-version
 libasb_plugin_appdata_la_CFLAGS = $(GLIB_CFLAGS) $(WARNINGFLAGS_C)
 
+libasb_plugin_shell_extension_la_SOURCES = asb-plugin-shell-extension.c
+libasb_plugin_shell_extension_la_LIBADD = $(GLIB_LIBS) $(JSON_GLIB_LIBS)
+libasb_plugin_shell_extension_la_LDFLAGS = -module -avoid-version
+libasb_plugin_shell_extension_la_CFLAGS = $(GLIB_CFLAGS) $(WARNINGFLAGS_C)
+
 if HAVE_FONTS
 libasb_plugin_font_la_SOURCES = asb-plugin-font.c
 libasb_plugin_font_la_LIBADD = $(GLIB_LIBS) $(FREETYPE_LIBS) $(GDKPIXBUF_LIBS) $(GTK_LIBS)
diff --git a/libappstream-builder/plugins/asb-plugin-shell-extension.c b/libappstream-builder/plugins/asb-plugin-shell-extension.c
new file mode 100644
index 0000000..8842b1f
--- /dev/null
+++ b/libappstream-builder/plugins/asb-plugin-shell-extension.c
@@ -0,0 +1,234 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2016 Richard Hughes <richard@hughsie.com>
+ *
+ * Licensed under the GNU Lesser General Public License Version 2.1
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <config.h>
+#include <fnmatch.h>
+#include <json-glib/json-glib.h>
+
+#include <asb-plugin.h>
+
+/**
+ * asb_plugin_get_name:
+ */
+const gchar *
+asb_plugin_get_name (void)
+{
+	return "shell-extension";
+}
+
+/**
+ * asb_plugin_add_globs:
+ */
+void
+asb_plugin_add_globs (AsbPlugin *plugin, GPtrArray *globs)
+{
+	asb_plugin_add_glob (globs, "/usr/share/gnome-shell/extensions/*/metadata.json");
+}
+
+/**
+ * _asb_plugin_check_filename:
+ */
+static gboolean
+_asb_plugin_check_filename (const gchar *filename)
+{
+	if (asb_plugin_match_glob ("/usr/share/gnome-shell/extensions/*/metadata.json", filename))
+		return TRUE;
+	return FALSE;
+}
+
+/**
+ * asb_plugin_check_filename:
+ */
+gboolean
+asb_plugin_check_filename (AsbPlugin *plugin, const gchar *filename)
+{
+	return _asb_plugin_check_filename (filename);
+}
+
+/**
+ * as_app_parse_shell_extension_data:
+ */
+static gboolean
+as_app_parse_shell_extension_data (AsApp *app,
+				   const gchar *data,
+				   gsize len,
+				   GError **error)
+{
+	JsonArray *json_array;
+	JsonNode *json_root;
+	JsonObject *json_obj;
+	const gchar *tmp;
+	g_autoptr(AsIcon) ic = NULL;
+	g_autoptr(JsonParser) json_parser = NULL;
+
+	/* parse the data */
+	json_parser = json_parser_new ();
+	if (!json_parser_load_from_data (json_parser, data, len, error))
+		return FALSE;
+	json_root = json_parser_get_root (json_parser);
+	if (json_root == NULL) {
+		g_set_error_literal (error,
+				     ASB_PLUGIN_ERROR,
+				     ASB_PLUGIN_ERROR_FAILED,
+				     "no root");
+		return FALSE;
+	}
+	json_obj = json_node_get_object (json_root);
+	if (json_obj == NULL) {
+		g_set_error_literal (error,
+				     ASB_PLUGIN_ERROR,
+				     ASB_PLUGIN_ERROR_FAILED,
+				     "no obect");
+		return FALSE;
+	}
+
+	as_app_set_kind (app, AS_APP_KIND_SHELL_EXTENSION);
+	as_app_set_comment (app, NULL, "GNOME Shell Extension");
+	as_app_add_category (AS_APP (app), "Addons");
+	as_app_add_category (AS_APP (app), "ShellExtensions");
+	tmp = json_object_get_string_member (json_obj, "uuid");
+	if (tmp != NULL) {
+		g_autofree gchar *id = NULL;
+		id = g_strdup_printf ("%s.shell-extension", tmp);
+		as_app_set_id (app, id);
+	}
+	if (json_object_has_member (json_obj, "gettext-domain")) {
+		tmp = json_object_get_string_member (json_obj, "gettext-domain");
+		if (tmp != NULL) {
+			g_autoptr(AsTranslation) transaction = NULL;
+			transaction = as_translation_new ();
+			as_translation_set_kind (transaction, AS_TRANSLATION_KIND_GETTEXT);
+			as_translation_set_id (transaction, tmp);
+			as_app_add_translation (app, transaction);
+		}
+	}
+	if (json_object_has_member (json_obj, "name")) {
+		tmp = json_object_get_string_member (json_obj, "name");
+		if (tmp != NULL)
+			as_app_set_name (app, NULL, tmp);
+	}
+	if (json_object_has_member (json_obj, "description")) {
+		tmp = json_object_get_string_member (json_obj, "description");
+		if (tmp != NULL) {
+			g_autofree gchar *desc = NULL;
+			desc = as_markup_import (tmp);
+			if (desc != NULL)
+				as_app_set_description (app, NULL, desc);
+		}
+	}
+	if (json_object_has_member (json_obj, "url")) {
+		tmp = json_object_get_string_member (json_obj, "url");
+		if (tmp != NULL)
+			as_app_add_url (app, AS_URL_KIND_HOMEPAGE, tmp);
+	}
+	if (json_object_has_member (json_obj, "original-authors")) {
+		json_array = json_object_get_array_member (json_obj, "original-authors");
+		if (json_array != NULL) {
+			tmp = json_array_get_string_element (json_array, 0);
+			as_app_set_developer_name (app, NULL, tmp);
+		}
+	}
+	if (as_app_get_release_default (app) == NULL &&
+	    json_object_has_member (json_obj, "shell-version")) {
+		json_array = json_object_get_array_member (json_obj, "shell-version");
+		if (json_array != NULL) {
+			g_autoptr(AsRelease) release = NULL;
+			tmp = json_array_get_string_element (json_array, 0);
+			release = as_release_new ();
+			as_release_set_state (release, AS_RELEASE_STATE_INSTALLED);
+			as_release_set_version (release, tmp);
+			as_app_add_release (app, release);
+		}
+	}
+
+	/* use a stock icon */
+	ic = as_icon_new ();
+	as_icon_set_kind (ic, AS_ICON_KIND_STOCK);
+	as_icon_set_name (ic, "application-x-addon-symbolic");
+	as_app_add_icon (app, ic);
+	return TRUE;
+}
+
+/**
+ * asb_plugin_process_filename:
+ */
+static gboolean
+asb_plugin_process_filename (AsbPlugin *plugin,
+			     AsbPackage *pkg,
+			     const gchar *filename,
+			     GList **apps,
+			     GError **error)
+{
+	gsize len;
+	g_autoptr(AsbApp) app = NULL;
+	g_autofree gchar *data = NULL;
+
+	app = asb_app_new (pkg, NULL);
+	if (!g_file_get_contents (filename, &data, &len, error))
+		return FALSE;
+	if (!as_app_parse_shell_extension_data (AS_APP (app), data, len, error))
+		return FALSE;
+	asb_plugin_add_app (apps, AS_APP (app));
+	return TRUE;
+}
+
+/**
+ * asb_plugin_process:
+ */
+GList *
+asb_plugin_process (AsbPlugin *plugin,
+		    AsbPackage *pkg,
+		    const gchar *tmpdir,
+		    GError **error)
+{
+	gboolean ret;
+	GList *apps = NULL;
+	guint i;
+	gchar **filelist;
+
+	filelist = asb_package_get_filelist (pkg);
+	for (i = 0; filelist[i] != NULL; i++) {
+		g_autofree gchar *filename_tmp = NULL;
+		if (!_asb_plugin_check_filename (filelist[i]))
+			continue;
+		filename_tmp = g_build_filename (tmpdir, filelist[i], NULL);
+		ret = asb_plugin_process_filename (plugin,
+						   pkg,
+						   filename_tmp,
+						   &apps,
+						   error);
+		if (!ret) {
+			g_list_free_full (apps, (GDestroyNotify) g_object_unref);
+			return NULL;
+		}
+	}
+
+	/* no desktop files we care about */
+	if (apps == NULL) {
+		g_set_error (error,
+			     ASB_PLUGIN_ERROR,
+			     ASB_PLUGIN_ERROR_FAILED,
+			     "nothing interesting in %s",
+			     asb_package_get_basename (pkg));
+		return NULL;
+	}
+	return apps;
+}