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gio: Add hack to close up dbus-daemon race

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If gio open exits before the program it starts fully activates, then
the dbus-daemon may avoid doing the activating method call.

This commit works around the problem by pinging the activated application,
and waiting for a reply.

Same workaround is used in gtk-launch and was used in gvfs-open before
it was replaced by gio open.

https://bugzilla.gnome.org/show_bug.cgi?id=780296
This commit is contained in:
Ondrej Holy 2017-05-10 13:51:19 +02:00
parent bef8a00bc3
commit 7384e372f0
1 changed files with 89 additions and 0 deletions
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89
gio/gio-tool-open.c
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@ -20,6 +20,7 @@
#include "config.h"
#include <gio/gio.h>
#include <gio/gdesktopappinfo.h>
#include <gi18n.h>
#include "gio-tool.h"
@ -29,6 +30,67 @@ static const GOptionEntry entries[] = {
{ NULL }
};
static gboolean
get_bus_name_and_path_from_uri (const char *uri,
char **bus_name_out,
char **object_path_out)
{
GAppInfo *app_info = NULL;
char *bus_name = NULL;
char *object_path = NULL;
char *uri_scheme;
const char *filename;
char *basename = NULL;
char *p;
gboolean got_name = FALSE;
uri_scheme = g_uri_parse_scheme (uri);
if (uri_scheme && uri_scheme[0] != '\0')
app_info = g_app_info_get_default_for_uri_scheme (uri_scheme);
g_free (uri_scheme);
if (app_info == NULL)
{
GFile *file;
file = g_file_new_for_uri (uri);
app_info = g_file_query_default_handler (file, NULL, NULL);
g_object_unref (file);
}
if (app_info == NULL || !G_IS_DESKTOP_APP_INFO (app_info) ||
!g_desktop_app_info_get_boolean (G_DESKTOP_APP_INFO (app_info), "DBusActivatable"))
goto out;
filename = g_desktop_app_info_get_filename (G_DESKTOP_APP_INFO (app_info));
if (filename == NULL)
goto out;
basename = g_path_get_basename (filename);
if (!g_str_has_suffix (basename, ".desktop"))
goto out;
basename[strlen (basename) - strlen (".desktop")] = '\0';
if (!g_dbus_is_name (basename))
goto out;
bus_name = g_strdup (basename);
object_path = g_strdup_printf ("/%s", bus_name);
for (p = object_path; *p != '\0'; p++)
if (*p == '.')
*p = '/';
*bus_name_out = g_steal_pointer (&bus_name);
*object_path_out = g_steal_pointer (&object_path);
got_name = TRUE;
out:
g_clear_object (&app_info);
g_clear_pointer (&basename, g_free);
return got_name;
}
int
handle_open (int argc, char *argv[], gboolean do_help)
{
@ -92,6 +154,33 @@ handle_open (int argc, char *argv[], gboolean do_help)
success = FALSE;
}
/* FIXME: This chunk of madness is a workaround for a dbus-daemon bug.
* See https://bugzilla.gnome.org/show_bug.cgi?id=780296
*/
if (res)
{
char *bus_name = NULL;
char *object_path = NULL;
if (get_bus_name_and_path_from_uri (uri, &bus_name, &object_path))
{
GDBusConnection *connection;
connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
if (connection)
g_dbus_connection_call_sync (connection,
bus_name,
object_path,
"org.freedesktop.DBus.Peer",
"Ping",
NULL, NULL,
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL);
g_clear_object (&connection);
g_free (bus_name);
g_free (object_path);
}
}
g_object_unref (file);
g_free (uri);
}