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glib/gio/gdesktopappinfo.c
Matthias Clasen bace1822d7 GAppLaunchContext: make it possible ot get the effective startup id 
gnome-session needs to know the startup id that was given to
a started app; this was not available via GAppLaunchContext.
This commit adds a ::launched signal to get this information.
At the same time, turn the launch_failed vfunc into a signal
as well.

https://bugzilla.gnome.org/show_bug.cgi?id=688497
2012-11-21 21:20:25 -05:00

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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
* Copyright © 2007 Ryan Lortie
*
* 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 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., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
#include <errno.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_CRT_EXTERNS_H
#include <crt_externs.h>
#endif
#include "gcontenttypeprivate.h"
#include "gdesktopappinfo.h"
#include "gfile.h"
#include "gioerror.h"
#include "gthemedicon.h"
#include "gfileicon.h"
#include <glib/gstdio.h>
#include "glibintl.h"
#include "giomodule-priv.h"
#include "gappinfo.h"
/**
* SECTION:gdesktopappinfo
* @title: GDesktopAppInfo
* @short_description: Application information from desktop files
* @include: gio/gdesktopappinfo.h
*
* #GDesktopAppInfo is an implementation of #GAppInfo based on
* desktop files.
*
* Note that <filename>&lt;gio/gdesktopappinfo.h&gt;</filename> belongs to
* the UNIX-specific GIO interfaces, thus you have to use the
* <filename>gio-unix-2.0.pc</filename> pkg-config file when using it.
*/
#define DEFAULT_APPLICATIONS_GROUP "Default Applications"
#define ADDED_ASSOCIATIONS_GROUP "Added Associations"
#define REMOVED_ASSOCIATIONS_GROUP "Removed Associations"
#define MIME_CACHE_GROUP "MIME Cache"
#define GENERIC_NAME_KEY "GenericName"
#define FULL_NAME_KEY "X-GNOME-FullName"
#define KEYWORDS_KEY "Keywords"
#define STARTUP_WM_CLASS_KEY "StartupWMClass"
enum {
PROP_0,
PROP_FILENAME
};
static void g_desktop_app_info_iface_init (GAppInfoIface *iface);
static GList * get_all_desktop_entries_for_mime_type (const char *base_mime_type,
const char **except,
gboolean include_fallback,
char **explicit_default);
static void mime_info_cache_reload (const char *dir);
static gboolean g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
GError **error);
/**
* GDesktopAppInfo:
*
* Information about an installed application from a desktop file.
*/
struct _GDesktopAppInfo
{
GObject parent_instance;
char *desktop_id;
char *filename;
GKeyFile *keyfile;
char *name;
char *generic_name;
char *fullname;
char *comment;
char *icon_name;
GIcon *icon;
char **keywords;
char **only_show_in;
char **not_show_in;
char *try_exec;
char *exec;
char *binary;
char *path;
char *categories;
char *startup_wm_class;
char **mime_types;
guint nodisplay : 1;
guint hidden : 1;
guint terminal : 1;
guint startup_notify : 1;
guint no_fuse : 1;
};
typedef enum {
UPDATE_MIME_NONE = 1 << 0,
UPDATE_MIME_SET_DEFAULT = 1 << 1,
UPDATE_MIME_SET_NON_DEFAULT = 1 << 2,
UPDATE_MIME_REMOVE = 1 << 3,
UPDATE_MIME_SET_LAST_USED = 1 << 4,
} UpdateMimeFlags;
G_DEFINE_TYPE_WITH_CODE (GDesktopAppInfo, g_desktop_app_info, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO,
g_desktop_app_info_iface_init))
G_LOCK_DEFINE_STATIC (g_desktop_env);
static gchar *g_desktop_env = NULL;
static gpointer
search_path_init (gpointer data)
{
char **args = NULL;
const char * const *data_dirs;
const char *user_data_dir;
int i, length, j;
data_dirs = g_get_system_data_dirs ();
length = g_strv_length ((char **) data_dirs);
args = g_new (char *, length + 2);
j = 0;
user_data_dir = g_get_user_data_dir ();
args[j++] = g_build_filename (user_data_dir, "applications", NULL);
for (i = 0; i < length; i++)
args[j++] = g_build_filename (data_dirs[i],
"applications", NULL);
args[j++] = NULL;
return args;
}
static const char * const *
get_applications_search_path (void)
{
static GOnce once_init = G_ONCE_INIT;
return g_once (&once_init, search_path_init, NULL);
}
static void
g_desktop_app_info_finalize (GObject *object)
{
GDesktopAppInfo *info;
info = G_DESKTOP_APP_INFO (object);
g_free (info->desktop_id);
g_free (info->filename);
if (info->keyfile)
g_key_file_unref (info->keyfile);
g_free (info->name);
g_free (info->generic_name);
g_free (info->fullname);
g_free (info->comment);
g_free (info->icon_name);
if (info->icon)
g_object_unref (info->icon);
g_strfreev (info->keywords);
g_strfreev (info->only_show_in);
g_strfreev (info->not_show_in);
g_free (info->try_exec);
g_free (info->exec);
g_free (info->binary);
g_free (info->path);
g_free (info->categories);
g_free (info->startup_wm_class);
g_strfreev (info->mime_types);
G_OBJECT_CLASS (g_desktop_app_info_parent_class)->finalize (object);
}
static void
g_desktop_app_info_set_property(GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object);
switch (prop_id)
{
case PROP_FILENAME:
self->filename = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_desktop_app_info_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object);
switch (prop_id)
{
case PROP_FILENAME:
g_value_set_string (value, self->filename);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_desktop_app_info_class_init (GDesktopAppInfoClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = g_desktop_app_info_get_property;
gobject_class->set_property = g_desktop_app_info_set_property;
gobject_class->finalize = g_desktop_app_info_finalize;
/**
* GDesktopAppInfo:filename:
*
* The origin filename of this #GDesktopAppInfo
*/
g_object_class_install_property (gobject_class,
PROP_FILENAME,
g_param_spec_string ("filename", "Filename", "",
NULL,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
}
static void
g_desktop_app_info_init (GDesktopAppInfo *local)
{
}
static char *
binary_from_exec (const char *exec)
{
const char *p, *start;
p = exec;
while (*p == ' ')
p++;
start = p;
while (*p != ' ' && *p != 0)
p++;
return g_strndup (start, p - start);
}
static gboolean
g_desktop_app_info_load_from_keyfile (GDesktopAppInfo *info,
GKeyFile *key_file)
{
char *start_group;
char *type;
char *try_exec;
start_group = g_key_file_get_start_group (key_file);
if (start_group == NULL || strcmp (start_group, G_KEY_FILE_DESKTOP_GROUP) != 0)
{
g_free (start_group);
return FALSE;
}
g_free (start_group);
type = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TYPE,
NULL);
if (type == NULL || strcmp (type, G_KEY_FILE_DESKTOP_TYPE_APPLICATION) != 0)
{
g_free (type);
return FALSE;
}
g_free (type);
try_exec = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TRY_EXEC,
NULL);
if (try_exec && try_exec[0] != '\0')
{
char *t;
t = g_find_program_in_path (try_exec);
if (t == NULL)
{
g_free (try_exec);
return FALSE;
}
g_free (t);
}
info->name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NAME, NULL, NULL);
info->generic_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, GENERIC_NAME_KEY, NULL, NULL);
info->fullname = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, FULL_NAME_KEY, NULL, NULL);
info->keywords = g_key_file_get_locale_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, KEYWORDS_KEY, NULL, NULL, NULL);
info->comment = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_COMMENT, NULL, NULL);
info->nodisplay = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, NULL) != FALSE;
info->icon_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ICON, NULL, NULL);
info->only_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ONLY_SHOW_IN, NULL, NULL);
info->not_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NOT_SHOW_IN, NULL, NULL);
info->try_exec = try_exec;
info->exec = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_EXEC, NULL);
info->path = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_PATH, NULL);
info->terminal = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TERMINAL, NULL) != FALSE;
info->startup_notify = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_STARTUP_NOTIFY, NULL) != FALSE;
info->no_fuse = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, "X-GIO-NoFuse", NULL) != FALSE;
info->hidden = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_HIDDEN, NULL) != FALSE;
info->categories = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_CATEGORIES, NULL);
info->startup_wm_class = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, STARTUP_WM_CLASS_KEY, NULL);
info->mime_types = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_MIME_TYPE, NULL, NULL);
info->icon = NULL;
if (info->icon_name)
{
if (g_path_is_absolute (info->icon_name))
{
GFile *file;
file = g_file_new_for_path (info->icon_name);
info->icon = g_file_icon_new (file);
g_object_unref (file);
}
else
{
char *p;
/* Work around a common mistake in desktop files */
if ((p = strrchr (info->icon_name, '.')) != NULL &&
(strcmp (p, ".png") == 0 ||
strcmp (p, ".xpm") == 0 ||
strcmp (p, ".svg") == 0))
*p = 0;
info->icon = g_themed_icon_new (info->icon_name);
}
}
if (info->exec)
info->binary = binary_from_exec (info->exec);
if (info->path && info->path[0] == '\0')
{
g_free (info->path);
info->path = NULL;
}
info->keyfile = g_key_file_ref (key_file);
return TRUE;
}
static gboolean
g_desktop_app_info_load_file (GDesktopAppInfo *self)
{
GKeyFile *key_file;
gboolean retval = FALSE;
g_return_val_if_fail (self->filename != NULL, FALSE);
key_file = g_key_file_new ();
if (g_key_file_load_from_file (key_file,
self->filename,
G_KEY_FILE_NONE,
NULL))
{
retval = g_desktop_app_info_load_from_keyfile (self, key_file);
}
g_key_file_unref (key_file);
return retval;
}
/**
* g_desktop_app_info_new_from_keyfile:
* @key_file: an opened #GKeyFile
*
* Creates a new #GDesktopAppInfo.
*
* Returns: a new #GDesktopAppInfo or %NULL on error.
*
* Since: 2.18
**/
GDesktopAppInfo *
g_desktop_app_info_new_from_keyfile (GKeyFile *key_file)
{
GDesktopAppInfo *info;
info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
info->filename = NULL;
if (!g_desktop_app_info_load_from_keyfile (info, key_file))
{
g_object_unref (info);
return NULL;
}
return info;
}
/**
* g_desktop_app_info_new_from_filename:
* @filename: the path of a desktop file, in the GLib filename encoding
*
* Creates a new #GDesktopAppInfo.
*
* Returns: a new #GDesktopAppInfo or %NULL on error.
**/
GDesktopAppInfo *
g_desktop_app_info_new_from_filename (const char *filename)
{
GDesktopAppInfo *info = NULL;
info = g_object_new (G_TYPE_DESKTOP_APP_INFO, "filename", filename, NULL);
if (!g_desktop_app_info_load_file (info))
{
g_object_unref (info);
return NULL;
}
return info;
}
/**
* g_desktop_app_info_new:
* @desktop_id: the desktop file id
*
* Creates a new #GDesktopAppInfo based on a desktop file id.
*
* A desktop file id is the basename of the desktop file, including the
* .desktop extension. GIO is looking for a desktop file with this name
* in the <filename>applications</filename> subdirectories of the XDG data
* directories (i.e. the directories specified in the
* <envar>XDG_DATA_HOME</envar> and <envar>XDG_DATA_DIRS</envar> environment
* variables). GIO also supports the prefix-to-subdirectory mapping that is
* described in the <ulink url="http://standards.freedesktop.org/menu-spec/latest/">Menu Spec</ulink>
* (i.e. a desktop id of kde-foo.desktop will match
* <filename>/usr/share/applications/kde/foo.desktop</filename>).
*
* Returns: a new #GDesktopAppInfo, or %NULL if no desktop file with that id
*/
GDesktopAppInfo *
g_desktop_app_info_new (const char *desktop_id)
{
GDesktopAppInfo *appinfo;
const char * const *dirs;
char *basename;
int i;
dirs = get_applications_search_path ();
basename = g_strdup (desktop_id);
for (i = 0; dirs[i] != NULL; i++)
{
char *filename;
char *p;
filename = g_build_filename (dirs[i], desktop_id, NULL);
appinfo = g_desktop_app_info_new_from_filename (filename);
g_free (filename);
if (appinfo != NULL)
goto found;
p = basename;
while ((p = strchr (p, '-')) != NULL)
{
*p = '/';
filename = g_build_filename (dirs[i], basename, NULL);
appinfo = g_desktop_app_info_new_from_filename (filename);
g_free (filename);
if (appinfo != NULL)
goto found;
*p = '-';
p++;
}
}
g_free (basename);
return NULL;
found:
g_free (basename);
appinfo->desktop_id = g_strdup (desktop_id);
if (g_desktop_app_info_get_is_hidden (appinfo))
{
g_object_unref (appinfo);
appinfo = NULL;
}
return appinfo;
}
static GAppInfo *
g_desktop_app_info_dup (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
GDesktopAppInfo *new_info;
new_info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
new_info->filename = g_strdup (info->filename);
new_info->desktop_id = g_strdup (info->desktop_id);
if (info->keyfile)
new_info->keyfile = g_key_file_ref (info->keyfile);
new_info->name = g_strdup (info->name);
new_info->generic_name = g_strdup (info->generic_name);
new_info->fullname = g_strdup (info->fullname);
new_info->keywords = g_strdupv (info->keywords);
new_info->comment = g_strdup (info->comment);
new_info->nodisplay = info->nodisplay;
new_info->icon_name = g_strdup (info->icon_name);
if (info->icon)
new_info->icon = g_object_ref (info->icon);
new_info->only_show_in = g_strdupv (info->only_show_in);
new_info->not_show_in = g_strdupv (info->not_show_in);
new_info->try_exec = g_strdup (info->try_exec);
new_info->exec = g_strdup (info->exec);
new_info->binary = g_strdup (info->binary);
new_info->path = g_strdup (info->path);
new_info->hidden = info->hidden;
new_info->terminal = info->terminal;
new_info->startup_notify = info->startup_notify;
return G_APP_INFO (new_info);
}
static gboolean
g_desktop_app_info_equal (GAppInfo *appinfo1,
GAppInfo *appinfo2)
{
GDesktopAppInfo *info1 = G_DESKTOP_APP_INFO (appinfo1);
GDesktopAppInfo *info2 = G_DESKTOP_APP_INFO (appinfo2);
if (info1->desktop_id == NULL ||
info2->desktop_id == NULL)
return info1 == info2;
return strcmp (info1->desktop_id, info2->desktop_id) == 0;
}
static const char *
g_desktop_app_info_get_id (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->desktop_id;
}
static const char *
g_desktop_app_info_get_name (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->name == NULL)
return _("Unnamed");
return info->name;
}
static const char *
g_desktop_app_info_get_display_name (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->fullname == NULL)
return g_desktop_app_info_get_name (appinfo);
return info->fullname;
}
/**
* g_desktop_app_info_get_is_hidden:
* @info: a #GDesktopAppInfo.
*
* A desktop file is hidden if the Hidden key in it is
* set to True.
*
* Returns: %TRUE if hidden, %FALSE otherwise.
**/
gboolean
g_desktop_app_info_get_is_hidden (GDesktopAppInfo *info)
{
return info->hidden;
}
/**
* g_desktop_app_info_get_filename:
* @info: a #GDesktopAppInfo
*
* When @info was created from a known filename, return it. In some
* situations such as the #GDesktopAppInfo returned from
* g_desktop_app_info_new_from_keyfile(), this function will return %NULL.
*
* Returns: The full path to the file for @info, or %NULL if not known.
* Since: 2.24
*/
const char *
g_desktop_app_info_get_filename (GDesktopAppInfo *info)
{
return info->filename;
}
static const char *
g_desktop_app_info_get_description (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->comment;
}
static const char *
g_desktop_app_info_get_executable (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->binary;
}
static const char *
g_desktop_app_info_get_commandline (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->exec;
}
static GIcon *
g_desktop_app_info_get_icon (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->icon;
}
/**
* g_desktop_app_info_get_categories:
* @info: a #GDesktopAppInfo
*
* Gets the categories from the desktop file.
*
* Returns: The unparsed Categories key from the desktop file;
* i.e. no attempt is made to split it by ';' or validate it.
*/
const char *
g_desktop_app_info_get_categories (GDesktopAppInfo *info)
{
return info->categories;
}
/**
* g_desktop_app_info_get_keywords:
* @info: a #GDesktopAppInfo
*
* Gets the keywords from the desktop file.
*
* Returns: (transfer none): The value of the Keywords key
*
* Since: 2.32
*/
const char * const *
g_desktop_app_info_get_keywords (GDesktopAppInfo *info)
{
return (const char * const *)info->keywords;
}
/**
* g_desktop_app_info_get_generic_name:
* @info: a #GDesktopAppInfo
*
* Gets the generic name from the destkop file.
*
* Returns: The value of the GenericName key
*/
const char *
g_desktop_app_info_get_generic_name (GDesktopAppInfo *info)
{
return info->generic_name;
}
/**
* g_desktop_app_info_get_nodisplay:
* @info: a #GDesktopAppInfo
*
* Gets the value of the NoDisplay key, which helps determine if the
* application info should be shown in menus. See
* #G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY and g_app_info_should_show().
*
* Returns: The value of the NoDisplay key
*
* Since: 2.30
*/
gboolean
g_desktop_app_info_get_nodisplay (GDesktopAppInfo *info)
{
return info->nodisplay;
}
/**
* g_desktop_app_info_get_show_in:
* @info: a #GDesktopAppInfo
* @desktop_env: a string specifying a desktop name
*
* Checks if the application info should be shown in menus that list available
* applications for a specific name of the desktop, based on the
* <literal>OnlyShowIn</literal> and <literal>NotShowIn</literal> keys.
*
* If @desktop_env is %NULL, then the name of the desktop set with
* g_desktop_app_info_set_desktop_env() is used.
*
* Note that g_app_info_should_show() for @info will include this check (with
* %NULL for @desktop_env) as well as additional checks.
*
* Returns: %TRUE if the @info should be shown in @desktop_env according to the
* <literal>OnlyShowIn</literal> and <literal>NotShowIn</literal> keys, %FALSE
* otherwise.
*
* Since: 2.30
*/
gboolean
g_desktop_app_info_get_show_in (GDesktopAppInfo *info,
const gchar *desktop_env)
{
gboolean found;
int i;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
if (!desktop_env) {
G_LOCK (g_desktop_env);
desktop_env = g_desktop_env;
G_UNLOCK (g_desktop_env);
}
if (info->only_show_in)
{
if (desktop_env == NULL)
return FALSE;
found = FALSE;
for (i = 0; info->only_show_in[i] != NULL; i++)
{
if (strcmp (info->only_show_in[i], desktop_env) == 0)
{
found = TRUE;
break;
}
}
if (!found)
return FALSE;
}
if (info->not_show_in && desktop_env)
{
for (i = 0; info->not_show_in[i] != NULL; i++)
{
if (strcmp (info->not_show_in[i], desktop_env) == 0)
return FALSE;
}
}
return TRUE;
}
static char *
expand_macro_single (char macro, char *uri)
{
GFile *file;
char *result = NULL;
char *path, *name;
file = g_file_new_for_uri (uri);
path = g_file_get_path (file);
g_object_unref (file);
switch (macro)
{
case 'u':
case 'U':
result = g_shell_quote (uri);
break;
case 'f':
case 'F':
if (path)
result = g_shell_quote (path);
break;
case 'd':
case 'D':
if (path)
{
name = g_path_get_dirname (path);
result = g_shell_quote (name);
g_free (name);
}
break;
case 'n':
case 'N':
if (path)
{
name = g_path_get_basename (path);
result = g_shell_quote (name);
g_free (name);
}
break;
}
g_free (path);
return result;
}
static void
expand_macro (char macro,
GString *exec,
GDesktopAppInfo *info,
GList **uri_list)
{
GList *uris = *uri_list;
char *expanded;
gboolean force_file_uri;
char force_file_uri_macro;
char *uri;
g_return_if_fail (exec != NULL);
/* On %u and %U, pass POSIX file path pointing to the URI via
* the FUSE mount in ~/.gvfs. Note that if the FUSE daemon isn't
* running or the URI doesn't have a POSIX file path via FUSE
* we'll just pass the URI.
*/
force_file_uri_macro = macro;
force_file_uri = FALSE;
if (!info->no_fuse)
{
switch (macro)
{
case 'u':
force_file_uri_macro = 'f';
force_file_uri = TRUE;
break;
case 'U':
force_file_uri_macro = 'F';
force_file_uri = TRUE;
break;
default:
break;
}
}
switch (macro)
{
case 'u':
case 'f':
case 'd':
case 'n':
if (uris)
{
uri = uris->data;
if (!force_file_uri ||
/* Pass URI if it contains an anchor */
strchr (uri, '#') != NULL)
{
expanded = expand_macro_single (macro, uri);
}
else
{
expanded = expand_macro_single (force_file_uri_macro, uri);
if (expanded == NULL)
expanded = expand_macro_single (macro, uri);
}
if (expanded)
{
g_string_append (exec, expanded);
g_free (expanded);
}
uris = uris->next;
}
break;
case 'U':
case 'F':
case 'D':
case 'N':
while (uris)
{
uri = uris->data;
if (!force_file_uri ||
/* Pass URI if it contains an anchor */
strchr (uri, '#') != NULL)
{
expanded = expand_macro_single (macro, uri);
}
else
{
expanded = expand_macro_single (force_file_uri_macro, uri);
if (expanded == NULL)
expanded = expand_macro_single (macro, uri);
}
if (expanded)
{
g_string_append (exec, expanded);
g_free (expanded);
}
uris = uris->next;
if (uris != NULL && expanded)
g_string_append_c (exec, ' ');
}
break;
case 'i':
if (info->icon_name)
{
g_string_append (exec, "--icon ");
expanded = g_shell_quote (info->icon_name);
g_string_append (exec, expanded);
g_free (expanded);
}
break;
case 'c':
if (info->name)
{
expanded = g_shell_quote (info->name);
g_string_append (exec, expanded);
g_free (expanded);
}
break;
case 'k':
if (info->filename)
{
expanded = g_shell_quote (info->filename);
g_string_append (exec, expanded);
g_free (expanded);
}
break;
case 'm': /* deprecated */
break;
case '%':
g_string_append_c (exec, '%');
break;
}
*uri_list = uris;
}
static gboolean
expand_application_parameters (GDesktopAppInfo *info,
GList **uris,
int *argc,
char ***argv,
GError **error)
{
GList *uri_list = *uris;
const char *p = info->exec;
GString *expanded_exec;
gboolean res;
if (info->exec == NULL)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Desktop file didn't specify Exec field"));
return FALSE;
}
expanded_exec = g_string_new (NULL);
while (*p)
{
if (p[0] == '%' && p[1] != '\0')
{
expand_macro (p[1], expanded_exec, info, uris);
p++;
}
else
g_string_append_c (expanded_exec, *p);
p++;
}
/* No file substitutions */
if (uri_list == *uris && uri_list != NULL)
{
/* If there is no macro default to %f. This is also what KDE does */
g_string_append_c (expanded_exec, ' ');
expand_macro ('f', expanded_exec, info, uris);
}
res = g_shell_parse_argv (expanded_exec->str, argc, argv, error);
g_string_free (expanded_exec, TRUE);
return res;
}
static gboolean
prepend_terminal_to_vector (int *argc,
char ***argv)
{
#ifndef G_OS_WIN32
char **real_argv;
int real_argc;
int i, j;
char **term_argv = NULL;
int term_argc = 0;
char *check;
char **the_argv;
g_return_val_if_fail (argc != NULL, FALSE);
g_return_val_if_fail (argv != NULL, FALSE);
/* sanity */
if(*argv == NULL)
*argc = 0;
the_argv = *argv;
/* compute size if not given */
if (*argc < 0)
{
for (i = 0; the_argv[i] != NULL; i++)
;
*argc = i;
}
term_argc = 2;
term_argv = g_new0 (char *, 3);
check = g_find_program_in_path ("gnome-terminal");
if (check != NULL)
{
term_argv[0] = check;
/* Note that gnome-terminal takes -x and
* as -e in gnome-terminal is broken we use that. */
term_argv[1] = g_strdup ("-x");
}
else
{
if (check == NULL)
check = g_find_program_in_path ("nxterm");
if (check == NULL)
check = g_find_program_in_path ("color-xterm");
if (check == NULL)
check = g_find_program_in_path ("rxvt");
if (check == NULL)
check = g_find_program_in_path ("xterm");
if (check == NULL)
check = g_find_program_in_path ("dtterm");
if (check == NULL)
{
check = g_strdup ("xterm");
g_warning ("couldn't find a terminal, falling back to xterm");
}
term_argv[0] = check;
term_argv[1] = g_strdup ("-e");
}
real_argc = term_argc + *argc;
real_argv = g_new (char *, real_argc + 1);
for (i = 0; i < term_argc; i++)
real_argv[i] = term_argv[i];
for (j = 0; j < *argc; j++, i++)
real_argv[i] = (char *)the_argv[j];
real_argv[i] = NULL;
g_free (*argv);
*argv = real_argv;
*argc = real_argc;
/* we use g_free here as we sucked all the inner strings
* out from it into real_argv */
g_free (term_argv);
return TRUE;
#else
return FALSE;
#endif /* G_OS_WIN32 */
}
static GList *
create_files_for_uris (GList *uris)
{
GList *res;
GList *iter;
res = NULL;
for (iter = uris; iter; iter = iter->next)
{
GFile *file = g_file_new_for_uri ((char *)iter->data);
res = g_list_prepend (res, file);
}
return g_list_reverse (res);
}
typedef struct
{
GSpawnChildSetupFunc user_setup;
gpointer user_setup_data;
char *pid_envvar;
} ChildSetupData;
static void
child_setup (gpointer user_data)
{
ChildSetupData *data = user_data;
if (data->pid_envvar)
{
pid_t pid = getpid ();
char buf[20];
int i;
/* Write the pid into the space already reserved for it in the
* environment array. We can't use sprintf because it might
* malloc, so we do it by hand. It's simplest to write the pid
* out backwards first, then copy it over.
*/
for (i = 0; pid; i++, pid /= 10)
buf[i] = (pid % 10) + '0';
for (i--; i >= 0; i--)
*(data->pid_envvar++) = buf[i];
*data->pid_envvar = '\0';
}
if (data->user_setup)
data->user_setup (data->user_setup_data);
}
static void
notify_desktop_launch (GDBusConnection *session_bus,
GDesktopAppInfo *info,
long pid,
const char *display,
const char *sn_id,
GList *uris)
{
GDBusMessage *msg;
GVariantBuilder uri_variant;
GVariantBuilder extras_variant;
GList *iter;
const char *desktop_file_id;
const char *gio_desktop_file;
if (session_bus == NULL)
return;
g_variant_builder_init (&uri_variant, G_VARIANT_TYPE ("as"));
for (iter = uris; iter; iter = iter->next)
g_variant_builder_add (&uri_variant, "s", iter->data);
g_variant_builder_init (&extras_variant, G_VARIANT_TYPE ("a{sv}"));
if (sn_id != NULL && g_utf8_validate (sn_id, -1, NULL))
g_variant_builder_add (&extras_variant, "{sv}",
"startup-id",
g_variant_new ("s",
sn_id));
gio_desktop_file = g_getenv ("GIO_LAUNCHED_DESKTOP_FILE");
if (gio_desktop_file != NULL)
g_variant_builder_add (&extras_variant, "{sv}",
"origin-desktop-file",
g_variant_new_bytestring (gio_desktop_file));
if (g_get_prgname () != NULL)
g_variant_builder_add (&extras_variant, "{sv}",
"origin-prgname",
g_variant_new_bytestring (g_get_prgname ()));
g_variant_builder_add (&extras_variant, "{sv}",
"origin-pid",
g_variant_new ("x",
(gint64)getpid ()));
if (info->filename)
desktop_file_id = info->filename;
else if (info->desktop_id)
desktop_file_id = info->desktop_id;
else
desktop_file_id = "";
msg = g_dbus_message_new_signal ("/org/gtk/gio/DesktopAppInfo",
"org.gtk.gio.DesktopAppInfo",
"Launched");
g_dbus_message_set_body (msg, g_variant_new ("(@aysxasa{sv})",
g_variant_new_bytestring (desktop_file_id),
display ? display : "",
(gint64)pid,
&uri_variant,
&extras_variant));
g_dbus_connection_send_message (session_bus,
msg, 0,
NULL,
NULL);
g_object_unref (msg);
}
#define _SPAWN_FLAGS_DEFAULT (G_SPAWN_SEARCH_PATH)
static gboolean
_g_desktop_app_info_launch_uris_internal (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
GDBusConnection *session_bus;
gboolean completed = FALSE;
GList *old_uris;
char **argv, **envp;
int argc;
ChildSetupData data;
g_return_val_if_fail (appinfo != NULL, FALSE);
argv = NULL;
session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
if (launch_context)
envp = g_app_launch_context_get_environment (launch_context);
else
envp = g_get_environ ();
do
{
GPid pid;
GList *launched_uris;
GList *iter;
char *display, *sn_id;
old_uris = uris;
if (!expand_application_parameters (info, &uris,
&argc, &argv, error))
goto out;
/* Get the subset of URIs we're launching with this process */
launched_uris = NULL;
for (iter = old_uris; iter != NULL && iter != uris; iter = iter->next)
launched_uris = g_list_prepend (launched_uris, iter->data);
launched_uris = g_list_reverse (launched_uris);
if (info->terminal && !prepend_terminal_to_vector (&argc, &argv))
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Unable to find terminal required for application"));
goto out;
}
data.user_setup = user_setup;
data.user_setup_data = user_setup_data;
if (info->filename)
{
envp = g_environ_setenv (envp,
"GIO_LAUNCHED_DESKTOP_FILE",
info->filename,
TRUE);
envp = g_environ_setenv (envp,
"GIO_LAUNCHED_DESKTOP_FILE_PID",
"XXXXXXXXXXXXXXXXXXXX", /* filled in child_setup */
TRUE);
data.pid_envvar = (char *)g_environ_getenv (envp, "GIO_LAUNCHED_DESKTOP_FILE_PID");
}
else
{
data.pid_envvar = NULL;
}
display = NULL;
sn_id = NULL;
if (launch_context)
{
GList *launched_files = create_files_for_uris (launched_uris);
display = g_app_launch_context_get_display (launch_context,
appinfo,
launched_files);
if (display)
envp = g_environ_setenv (envp, "DISPLAY", display, TRUE);
if (info->startup_notify)
{
sn_id = g_app_launch_context_get_startup_notify_id (launch_context,
appinfo,
launched_files);
envp = g_environ_setenv (envp, "DESKTOP_STARTUP_ID", sn_id, TRUE);
}
g_list_free_full (launched_files, g_object_unref);
}
if (!g_spawn_async (info->path,
argv,
envp,
spawn_flags,
child_setup,
&data,
&pid,
error))
{
if (sn_id)
g_app_launch_context_launch_failed (launch_context, sn_id);
g_free (display);
g_free (sn_id);
g_list_free (launched_uris);
goto out;
}
if (pid_callback != NULL)
pid_callback (info, pid, pid_callback_data);
if (launch_context != NULL)
{
GVariantBuilder builder;
GVariant *platform_data;
g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
g_variant_builder_add (&builder, "{sv}", "pid", g_variant_new_int32 (pid));
if (sn_id)
g_variant_builder_add (&builder, "{sv}", "startup-notification-id", g_variant_new_string (sn_id));
platform_data = g_variant_ref_sink (g_variant_builder_end (&builder));
g_signal_emit_by_name (launch_context, "launched", info, platform_data);
g_variant_unref (platform_data);
}
notify_desktop_launch (session_bus,
info,
pid,
display,
sn_id,
launched_uris);
g_free (display);
g_free (sn_id);
g_list_free (launched_uris);
g_strfreev (argv);
argv = NULL;
}
while (uris != NULL);
/* TODO - need to handle the process exiting immediately
* after launching an app. See http://bugzilla.gnome.org/606960
*/
if (session_bus != NULL)
{
/* This asynchronous flush holds a reference until it completes,
* which ensures that the following unref won't immediately kill
* the connection if we were the initial owner.
*/
g_dbus_connection_flush (session_bus, NULL, NULL, NULL);
}
completed = TRUE;
out:
g_clear_object (&session_bus);
g_strfreev (argv);
g_strfreev (envp);
return completed;
}
static gboolean
g_desktop_app_info_launch_uris (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GError **error)
{
return _g_desktop_app_info_launch_uris_internal (appinfo, uris,
launch_context,
_SPAWN_FLAGS_DEFAULT,
NULL, NULL, NULL, NULL,
error);
}
static gboolean
g_desktop_app_info_supports_uris (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->exec &&
((strstr (info->exec, "%u") != NULL) ||
(strstr (info->exec, "%U") != NULL));
}
static gboolean
g_desktop_app_info_supports_files (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return info->exec &&
((strstr (info->exec, "%f") != NULL) ||
(strstr (info->exec, "%F") != NULL));
}
static gboolean
g_desktop_app_info_launch (GAppInfo *appinfo,
GList *files,
GAppLaunchContext *launch_context,
GError **error)
{
GList *uris;
char *uri;
gboolean res;
uris = NULL;
while (files)
{
uri = g_file_get_uri (files->data);
uris = g_list_prepend (uris, uri);
files = files->next;
}
uris = g_list_reverse (uris);
res = g_desktop_app_info_launch_uris (appinfo, uris, launch_context, error);
g_list_free_full (uris, g_free);
return res;
}
/**
* g_desktop_app_info_launch_uris_as_manager:
* @appinfo: a #GDesktopAppInfo
* @uris: (element-type utf8): List of URIs
* @launch_context: a #GAppLaunchContext
* @spawn_flags: #GSpawnFlags, used for each process
* @user_setup: (scope call): a #GSpawnChildSetupFunc, used once for
* each process.
* @user_setup_data: (closure user_setup): User data for @user_setup
* @pid_callback: (scope call): Callback for child processes
* @pid_callback_data: (closure pid_callback): User data for @callback
* @error: return location for a #GError, or %NULL
*
* This function performs the equivalent of g_app_info_launch_uris(),
* but is intended primarily for operating system components that
* launch applications. Ordinary applications should use
* g_app_info_launch_uris().
*
* In contrast to g_app_info_launch_uris(), all processes created will
* always be run directly as children as if by the UNIX fork()/exec()
* calls.
*
* This guarantee allows additional control over the exact environment
* of the child processes, which is provided via a setup function
* @user_setup, as well as the process identifier of each child process
* via @pid_callback. See g_spawn_async() for more information about the
* semantics of the @user_setup function.
*
* Returns: %TRUE on successful launch, %FALSE otherwise.
*/
gboolean
g_desktop_app_info_launch_uris_as_manager (GDesktopAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
GError **error)
{
return _g_desktop_app_info_launch_uris_internal ((GAppInfo*)appinfo,
uris,
launch_context,
spawn_flags,
user_setup,
user_setup_data,
pid_callback,
pid_callback_data,
error);
}
/**
* g_desktop_app_info_set_desktop_env:
* @desktop_env: a string specifying what desktop this is
*
* Sets the name of the desktop that the application is running in.
* This is used by g_app_info_should_show() and
* g_desktop_app_info_get_show_in() to evaluate the
* <literal>OnlyShowIn</literal> and <literal>NotShowIn</literal>
* desktop entry fields.
*
* The <ulink url="http://standards.freedesktop.org/menu-spec/latest/">Desktop
* Menu specification</ulink> recognizes the following:
* <simplelist>
* <member>GNOME</member>
* <member>KDE</member>
* <member>ROX</member>
* <member>XFCE</member>
* <member>LXDE</member>
* <member>Unity</member>
* <member>Old</member>
* </simplelist>
*
* Should be called only once; subsequent calls are ignored.
*/
void
g_desktop_app_info_set_desktop_env (const gchar *desktop_env)
{
G_LOCK (g_desktop_env);
if (!g_desktop_env)
g_desktop_env = g_strdup (desktop_env);
G_UNLOCK (g_desktop_env);
}
static gboolean
g_desktop_app_info_should_show (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->nodisplay)
return FALSE;
return g_desktop_app_info_get_show_in (info, NULL);
}
typedef enum {
APP_DIR,
MIMETYPE_DIR
} DirType;
static char *
ensure_dir (DirType type,
GError **error)
{
char *path, *display_name;
int errsv;
if (type == APP_DIR)
path = g_build_filename (g_get_user_data_dir (), "applications", NULL);
else
path = g_build_filename (g_get_user_data_dir (), "mime", "packages", NULL);
errno = 0;
if (g_mkdir_with_parents (path, 0700) == 0)
return path;
errsv = errno;
display_name = g_filename_display_name (path);
if (type == APP_DIR)
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
_("Can't create user application configuration folder %s: %s"),
display_name, g_strerror (errsv));
else
g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
_("Can't create user MIME configuration folder %s: %s"),
display_name, g_strerror (errsv));
g_free (display_name);
g_free (path);
return NULL;
}
static gboolean
update_mimeapps_list (const char *desktop_id,
const char *content_type,
UpdateMimeFlags flags,
GError **error)
{
char *dirname, *filename, *string;
GKeyFile *key_file;
gboolean load_succeeded, res;
char **old_list, **list;
gsize length, data_size;
char *data;
int i, j, k;
char **content_types;
/* Don't add both at start and end */
g_assert (!((flags & UPDATE_MIME_SET_DEFAULT) &&
(flags & UPDATE_MIME_SET_NON_DEFAULT)));
dirname = ensure_dir (APP_DIR, error);
if (!dirname)
return FALSE;
filename = g_build_filename (dirname, "mimeapps.list", NULL);
g_free (dirname);
key_file = g_key_file_new ();
load_succeeded = g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL);
if (!load_succeeded ||
(!g_key_file_has_group (key_file, ADDED_ASSOCIATIONS_GROUP) &&
!g_key_file_has_group (key_file, REMOVED_ASSOCIATIONS_GROUP) &&
!g_key_file_has_group (key_file, DEFAULT_APPLICATIONS_GROUP)))
{
g_key_file_free (key_file);
key_file = g_key_file_new ();
}
if (content_type)
{
content_types = g_new (char *, 2);
content_types[0] = g_strdup (content_type);
content_types[1] = NULL;
}
else
{
content_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP, NULL, NULL);
}
for (k = 0; content_types && content_types[k]; k++)
{
/* set as default, if requested so */
string = g_key_file_get_string (key_file,
DEFAULT_APPLICATIONS_GROUP,
content_types[k],
NULL);
if (g_strcmp0 (string, desktop_id) != 0 &&
(flags & UPDATE_MIME_SET_DEFAULT))
{
g_free (string);
string = g_strdup (desktop_id);
/* add in the non-default list too, if it's not already there */
flags |= UPDATE_MIME_SET_NON_DEFAULT;
}
if (string == NULL || desktop_id == NULL)
g_key_file_remove_key (key_file,
DEFAULT_APPLICATIONS_GROUP,
content_types[k],
NULL);
else
g_key_file_set_string (key_file,
DEFAULT_APPLICATIONS_GROUP,
content_types[k],
string);
g_free (string);
}
if (content_type)
{
/* reuse the list from above */
}
else
{
g_strfreev (content_types);
content_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP, NULL, NULL);
}
for (k = 0; content_types && content_types[k]; k++)
{
/* Add to the right place in the list */
length = 0;
old_list = g_key_file_get_string_list (key_file, ADDED_ASSOCIATIONS_GROUP,
content_types[k], &length, NULL);
list = g_new (char *, 1 + length + 1);
i = 0;
/* if we're adding a last-used hint, just put the application in front of the list */
if (flags & UPDATE_MIME_SET_LAST_USED)
{
/* avoid adding this again as non-default later */
if (flags & UPDATE_MIME_SET_NON_DEFAULT)
flags ^= UPDATE_MIME_SET_NON_DEFAULT;
list[i++] = g_strdup (desktop_id);
}
if (old_list)
{
for (j = 0; old_list[j] != NULL; j++)
{
if (g_strcmp0 (old_list[j], desktop_id) != 0)
{
/* rewrite other entries if they're different from the new one */
list[i++] = g_strdup (old_list[j]);
}
else if (flags & UPDATE_MIME_SET_NON_DEFAULT)
{
/* we encountered an old entry which is equal to the one we're adding as non-default,
* don't change its position in the list.
*/
flags ^= UPDATE_MIME_SET_NON_DEFAULT;
list[i++] = g_strdup (old_list[j]);
}
}
}
/* add it at the end of the list */
if (flags & UPDATE_MIME_SET_NON_DEFAULT)
list[i++] = g_strdup (desktop_id);
list[i] = NULL;
g_strfreev (old_list);
if (list[0] == NULL || desktop_id == NULL)
g_key_file_remove_key (key_file,
ADDED_ASSOCIATIONS_GROUP,
content_types[k],
NULL);
else
g_key_file_set_string_list (key_file,
ADDED_ASSOCIATIONS_GROUP,
content_types[k],
(const char * const *)list, i);
g_strfreev (list);
}
if (content_type)
{
/* reuse the list from above */
}
else
{
g_strfreev (content_types);
content_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL);
}
for (k = 0; content_types && content_types[k]; k++)
{
/* Remove from removed associations group (unless remove) */
length = 0;
old_list = g_key_file_get_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP,
content_types[k], &length, NULL);
list = g_new (char *, 1 + length + 1);
i = 0;
if (flags & UPDATE_MIME_REMOVE)
list[i++] = g_strdup (desktop_id);
if (old_list)
{
for (j = 0; old_list[j] != NULL; j++)
{
if (g_strcmp0 (old_list[j], desktop_id) != 0)
list[i++] = g_strdup (old_list[j]);
}
}
list[i] = NULL;
g_strfreev (old_list);
if (list[0] == NULL || desktop_id == NULL)
g_key_file_remove_key (key_file,
REMOVED_ASSOCIATIONS_GROUP,
content_types[k],
NULL);
else
g_key_file_set_string_list (key_file,
REMOVED_ASSOCIATIONS_GROUP,
content_types[k],
(const char * const *)list, i);
g_strfreev (list);
}
g_strfreev (content_types);
data = g_key_file_to_data (key_file, &data_size, error);
g_key_file_free (key_file);
res = g_file_set_contents (filename, data, data_size, error);
mime_info_cache_reload (NULL);
g_free (filename);
g_free (data);
return res;
}
static gboolean
g_desktop_app_info_set_as_last_used_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (info, error))
return FALSE;
if (!info->desktop_id)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Application information lacks an identifier"));
return FALSE;
}
/* both add support for the content type and set as last used */
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_SET_NON_DEFAULT |
UPDATE_MIME_SET_LAST_USED,
error);
}
static gboolean
g_desktop_app_info_set_as_default_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (info, error))
return FALSE;
if (!info->desktop_id)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Application information lacks an identifier"));
return FALSE;
}
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_SET_DEFAULT,
error);
}
static void
update_program_done (GPid pid,
gint status,
gpointer data)
{
/* Did the application exit correctly */
if (g_spawn_check_exit_status (status, NULL))
{
/* Here we could clean out any caches in use */
}
}
static void
run_update_command (char *command,
char *subdir)
{
char *argv[3] = {
NULL,
NULL,
NULL,
};
GPid pid = 0;
GError *error = NULL;
argv[0] = command;
argv[1] = g_build_filename (g_get_user_data_dir (), subdir, NULL);
if (g_spawn_async ("/", argv,
NULL, /* envp */
G_SPAWN_SEARCH_PATH |
G_SPAWN_STDOUT_TO_DEV_NULL |
G_SPAWN_STDERR_TO_DEV_NULL |
G_SPAWN_DO_NOT_REAP_CHILD,
NULL, NULL, /* No setup function */
&pid,
&error))
g_child_watch_add (pid, update_program_done, NULL);
else
{
/* If we get an error at this point, it's quite likely the user doesn't
* have an installed copy of either 'update-mime-database' or
* 'update-desktop-database'. I don't think we want to popup an error
* dialog at this point, so we just do a g_warning to give the user a
* chance of debugging it.
*/
g_warning ("%s", error->message);
}
g_free (argv[1]);
}
static gboolean
g_desktop_app_info_set_as_default_for_extension (GAppInfo *appinfo,
const char *extension,
GError **error)
{
char *filename, *basename, *mimetype;
char *dirname;
gboolean res;
if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (appinfo), error))
return FALSE;
dirname = ensure_dir (MIMETYPE_DIR, error);
if (!dirname)
return FALSE;
basename = g_strdup_printf ("user-extension-%s.xml", extension);
filename = g_build_filename (dirname, basename, NULL);
g_free (basename);
g_free (dirname);
mimetype = g_strdup_printf ("application/x-extension-%s", extension);
if (!g_file_test (filename, G_FILE_TEST_EXISTS))
{
char *contents;
contents =
g_strdup_printf ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<mime-info xmlns=\"http://www.freedesktop.org/standards/shared-mime-info\">\n"
" <mime-type type=\"%s\">\n"
" <comment>%s document</comment>\n"
" <glob pattern=\"*.%s\"/>\n"
" </mime-type>\n"
"</mime-info>\n", mimetype, extension, extension);
g_file_set_contents (filename, contents, -1, NULL);
g_free (contents);
run_update_command ("update-mime-database", "mime");
}
g_free (filename);
res = g_desktop_app_info_set_as_default_for_type (appinfo,
mimetype,
error);
g_free (mimetype);
return res;
}
static gboolean
g_desktop_app_info_add_supports_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error))
return FALSE;
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_SET_NON_DEFAULT,
error);
}
static gboolean
g_desktop_app_info_can_remove_supports_type (GAppInfo *appinfo)
{
return TRUE;
}
static gboolean
g_desktop_app_info_remove_supports_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error))
return FALSE;
return update_mimeapps_list (info->desktop_id, content_type,
UPDATE_MIME_REMOVE,
error);
}
static const char **
g_desktop_app_info_get_supported_types (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
return (const char**) info->mime_types;
}
static gboolean
g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
GError **error)
{
GKeyFile *key_file;
char *dirname;
char *filename;
char *data, *desktop_id;
gsize data_size;
int fd;
gboolean res;
if (info->filename != NULL)
return TRUE;
/* This is only used for object created with
* g_app_info_create_from_commandline. All other
* object should have a filename
*/
dirname = ensure_dir (APP_DIR, error);
if (!dirname)
return FALSE;
key_file = g_key_file_new ();
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
"Encoding", "UTF-8");
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_VERSION, "1.0");
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TYPE,
G_KEY_FILE_DESKTOP_TYPE_APPLICATION);
if (info->terminal)
g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_TERMINAL, TRUE);
if (info->nodisplay)
g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE);
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_EXEC, info->exec);
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_NAME, info->name);
if (info->generic_name != NULL)
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
GENERIC_NAME_KEY, info->generic_name);
if (info->fullname != NULL)
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
FULL_NAME_KEY, info->fullname);
g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_COMMENT, info->comment);
g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE);
data = g_key_file_to_data (key_file, &data_size, NULL);
g_key_file_free (key_file);
desktop_id = g_strdup_printf ("userapp-%s-XXXXXX.desktop", info->name);
filename = g_build_filename (dirname, desktop_id, NULL);
g_free (desktop_id);
g_free (dirname);
fd = g_mkstemp (filename);
if (fd == -1)
{
char *display_name;
display_name = g_filename_display_name (filename);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Can't create user desktop file %s"), display_name);
g_free (display_name);
g_free (filename);
g_free (data);
return FALSE;
}
desktop_id = g_path_get_basename (filename);
close (fd);
res = g_file_set_contents (filename, data, data_size, error);
g_free (data);
if (!res)
{
g_free (desktop_id);
g_free (filename);
return FALSE;
}
info->filename = filename;
info->desktop_id = desktop_id;
run_update_command ("update-desktop-database", "applications");
return TRUE;
}
static gboolean
g_desktop_app_info_can_delete (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->filename)
{
if (strstr (info->filename, "/userapp-"))
return g_access (info->filename, W_OK) == 0;
}
return FALSE;
}
static gboolean
g_desktop_app_info_delete (GAppInfo *appinfo)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
if (info->filename)
{
if (g_remove (info->filename) == 0)
{
update_mimeapps_list (info->desktop_id, NULL,
UPDATE_MIME_NONE,
NULL);
g_free (info->filename);
info->filename = NULL;
g_free (info->desktop_id);
info->desktop_id = NULL;
return TRUE;
}
}
return FALSE;
}
/**
* g_app_info_create_from_commandline:
* @commandline: the commandline to use
* @application_name: (allow-none): the application name, or %NULL to use @commandline
* @flags: flags that can specify details of the created #GAppInfo
* @error: a #GError location to store the error occurring, %NULL to ignore.
*
* Creates a new #GAppInfo from the given information.
*
* Note that for @commandline, the quoting rules of the Exec key of the
* <ulink url="http://freedesktop.org/Standards/desktop-entry-spec">freedesktop.org Desktop
* Entry Specification</ulink> are applied. For example, if the @commandline contains
* percent-encoded URIs, the percent-character must be doubled in order to prevent it from
* being swallowed by Exec key unquoting. See the specification for exact quoting rules.
*
* Returns: (transfer full): new #GAppInfo for given command.
**/
GAppInfo *
g_app_info_create_from_commandline (const char *commandline,
const char *application_name,
GAppInfoCreateFlags flags,
GError **error)
{
char **split;
char *basename;
GDesktopAppInfo *info;
g_return_val_if_fail (commandline, NULL);
info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL);
info->filename = NULL;
info->desktop_id = NULL;
info->terminal = (flags & G_APP_INFO_CREATE_NEEDS_TERMINAL) != 0;
info->startup_notify = (flags & G_APP_INFO_CREATE_SUPPORTS_STARTUP_NOTIFICATION) != 0;
info->hidden = FALSE;
if ((flags & G_APP_INFO_CREATE_SUPPORTS_URIS) != 0)
info->exec = g_strconcat (commandline, " %u", NULL);
else
info->exec = g_strconcat (commandline, " %f", NULL);
info->nodisplay = TRUE;
info->binary = binary_from_exec (info->exec);
if (application_name)
info->name = g_strdup (application_name);
else
{
/* FIXME: this should be more robust. Maybe g_shell_parse_argv and use argv[0] */
split = g_strsplit (commandline, " ", 2);
basename = split[0] ? g_path_get_basename (split[0]) : NULL;
g_strfreev (split);
info->name = basename;
if (info->name == NULL)
info->name = g_strdup ("custom");
}
info->comment = g_strdup_printf (_("Custom definition for %s"), info->name);
return G_APP_INFO (info);
}
static void
g_desktop_app_info_iface_init (GAppInfoIface *iface)
{
iface->dup = g_desktop_app_info_dup;
iface->equal = g_desktop_app_info_equal;
iface->get_id = g_desktop_app_info_get_id;
iface->get_name = g_desktop_app_info_get_name;
iface->get_description = g_desktop_app_info_get_description;
iface->get_executable = g_desktop_app_info_get_executable;
iface->get_icon = g_desktop_app_info_get_icon;
iface->launch = g_desktop_app_info_launch;
iface->supports_uris = g_desktop_app_info_supports_uris;
iface->supports_files = g_desktop_app_info_supports_files;
iface->launch_uris = g_desktop_app_info_launch_uris;
iface->should_show = g_desktop_app_info_should_show;
iface->set_as_default_for_type = g_desktop_app_info_set_as_default_for_type;
iface->set_as_default_for_extension = g_desktop_app_info_set_as_default_for_extension;
iface->add_supports_type = g_desktop_app_info_add_supports_type;
iface->can_remove_supports_type = g_desktop_app_info_can_remove_supports_type;
iface->remove_supports_type = g_desktop_app_info_remove_supports_type;
iface->can_delete = g_desktop_app_info_can_delete;
iface->do_delete = g_desktop_app_info_delete;
iface->get_commandline = g_desktop_app_info_get_commandline;
iface->get_display_name = g_desktop_app_info_get_display_name;
iface->set_as_last_used_for_type = g_desktop_app_info_set_as_last_used_for_type;
iface->get_supported_types = g_desktop_app_info_get_supported_types;
}
static gboolean
app_info_in_list (GAppInfo *info,
GList *list)
{
while (list != NULL)
{
if (g_app_info_equal (info, list->data))
return TRUE;
list = list->next;
}
return FALSE;
}
/**
* g_app_info_get_recommended_for_type:
* @content_type: the content type to find a #GAppInfo for
*
* Gets a list of recommended #GAppInfos for a given content type, i.e.
* those applications which claim to support the given content type exactly,
* and not by MIME type subclassing.
* Note that the first application of the list is the last used one, i.e.
* the last one for which g_app_info_set_as_last_used_for_type() has been
* called.
*
* Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
* for given @content_type or %NULL on error.
*
* Since: 2.28
**/
GList *
g_app_info_get_recommended_for_type (const gchar *content_type)
{
GList *desktop_entries, *l;
GList *infos;
GDesktopAppInfo *info;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, FALSE, NULL);
infos = NULL;
for (l = desktop_entries; l != NULL; l = l->next)
{
char *desktop_entry = l->data;
info = g_desktop_app_info_new (desktop_entry);
if (info)
{
if (app_info_in_list (G_APP_INFO (info), infos))
g_object_unref (info);
else
infos = g_list_prepend (infos, info);
}
g_free (desktop_entry);
}
g_list_free (desktop_entries);
return g_list_reverse (infos);
}
/**
* g_app_info_get_fallback_for_type:
* @content_type: the content type to find a #GAppInfo for
*
* Gets a list of fallback #GAppInfos for a given content type, i.e.
* those applications which claim to support the given content type
* by MIME type subclassing and not directly.
*
* Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
* for given @content_type or %NULL on error.
*
* Since: 2.28
**/
GList *
g_app_info_get_fallback_for_type (const gchar *content_type)
{
GList *desktop_entries, *l;
GList *infos, *recommended_infos;
GDesktopAppInfo *info;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE, NULL);
recommended_infos = g_app_info_get_recommended_for_type (content_type);
infos = NULL;
for (l = desktop_entries; l != NULL; l = l->next)
{
char *desktop_entry = l->data;
info = g_desktop_app_info_new (desktop_entry);
if (info)
{
if (app_info_in_list (G_APP_INFO (info), infos) ||
app_info_in_list (G_APP_INFO (info), recommended_infos))
g_object_unref (info);
else
infos = g_list_prepend (infos, info);
}
g_free (desktop_entry);
}
g_list_free (desktop_entries);
g_list_free_full (recommended_infos, g_object_unref);
return g_list_reverse (infos);
}
/**
* g_app_info_get_all_for_type:
* @content_type: the content type to find a #GAppInfo for
*
* Gets a list of all #GAppInfos for a given content type,
* including the recommended and fallback #GAppInfos. See
* g_app_info_get_recommended_for_type() and
* g_app_info_get_fallback_for_type().
*
* Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos
* for given @content_type or %NULL on error.
**/
GList *
g_app_info_get_all_for_type (const char *content_type)
{
GList *desktop_entries, *l;
GList *infos;
char *user_default = NULL;
GDesktopAppInfo *info;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE, &user_default);
infos = NULL;
/* put the user default in front of the list, for compatibility */
if (user_default != NULL)
{
info = g_desktop_app_info_new (user_default);
if (info != NULL)
infos = g_list_prepend (infos, info);
}
g_free (user_default);
for (l = desktop_entries; l != NULL; l = l->next)
{
char *desktop_entry = l->data;
info = g_desktop_app_info_new (desktop_entry);
if (info)
{
if (app_info_in_list (G_APP_INFO (info), infos))
g_object_unref (info);
else
infos = g_list_prepend (infos, info);
}
g_free (desktop_entry);
}
g_list_free (desktop_entries);
return g_list_reverse (infos);
}
/**
* g_app_info_reset_type_associations:
* @content_type: a content type
*
* Removes all changes to the type associations done by
* g_app_info_set_as_default_for_type(),
* g_app_info_set_as_default_for_extension(),
* g_app_info_add_supports_type() or
* g_app_info_remove_supports_type().
*
* Since: 2.20
*/
void
g_app_info_reset_type_associations (const char *content_type)
{
update_mimeapps_list (NULL, content_type,
UPDATE_MIME_NONE,
NULL);
}
/**
* g_app_info_get_default_for_type:
* @content_type: the content type to find a #GAppInfo for
* @must_support_uris: if %TRUE, the #GAppInfo is expected to
* support URIs
*
* Gets the default #GAppInfo for a given content type.
*
* Returns: (transfer full): #GAppInfo for given @content_type or
* %NULL on error.
*/
GAppInfo *
g_app_info_get_default_for_type (const char *content_type,
gboolean must_support_uris)
{
GList *desktop_entries, *l;
char *user_default = NULL;
GAppInfo *info;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE, &user_default);
info = NULL;
if (user_default != NULL)
{
info = (GAppInfo *) g_desktop_app_info_new (user_default);
if (info)
{
if (must_support_uris && !g_app_info_supports_uris (info))
{
g_object_unref (info);
info = NULL;
}
}
}
g_free (user_default);
if (info != NULL)
{
g_list_free_full (desktop_entries, g_free);
return info;
}
/* pick the first from the other list that matches our URI
* requirements.
*/
for (l = desktop_entries; l != NULL; l = l->next)
{
char *desktop_entry = l->data;
info = (GAppInfo *)g_desktop_app_info_new (desktop_entry);
if (info)
{
if (must_support_uris && !g_app_info_supports_uris (info))
{
g_object_unref (info);
info = NULL;
}
else
break;
}
}
g_list_free_full (desktop_entries, g_free);
return info;
}
/**
* g_app_info_get_default_for_uri_scheme:
* @uri_scheme: a string containing a URI scheme.
*
* Gets the default application for handling URIs with
* the given URI scheme. A URI scheme is the initial part
* of the URI, up to but not including the ':', e.g. "http",
* "ftp" or "sip".
*
* Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error.
*/
GAppInfo *
g_app_info_get_default_for_uri_scheme (const char *uri_scheme)
{
GAppInfo *app_info;
char *content_type, *scheme_down;
scheme_down = g_ascii_strdown (uri_scheme, -1);
content_type = g_strdup_printf ("x-scheme-handler/%s", scheme_down);
g_free (scheme_down);
app_info = g_app_info_get_default_for_type (content_type, FALSE);
g_free (content_type);
return app_info;
}
static void
get_apps_from_dir (GHashTable *apps,
const char *dirname,
const char *prefix)
{
GDir *dir;
const char *basename;
char *filename, *subprefix, *desktop_id;
gboolean hidden;
GDesktopAppInfo *appinfo;
dir = g_dir_open (dirname, 0, NULL);
if (dir)
{
while ((basename = g_dir_read_name (dir)) != NULL)
{
filename = g_build_filename (dirname, basename, NULL);
if (g_str_has_suffix (basename, ".desktop"))
{
desktop_id = g_strconcat (prefix, basename, NULL);
/* Use _extended so we catch NULLs too (hidden) */
if (!g_hash_table_lookup_extended (apps, desktop_id, NULL, NULL))
{
appinfo = g_desktop_app_info_new_from_filename (filename);
hidden = FALSE;
if (appinfo && g_desktop_app_info_get_is_hidden (appinfo))
{
g_object_unref (appinfo);
appinfo = NULL;
hidden = TRUE;
}
if (appinfo || hidden)
{
g_hash_table_insert (apps, g_strdup (desktop_id), appinfo);
if (appinfo)
{
/* Reuse instead of strdup here */
appinfo->desktop_id = desktop_id;
desktop_id = NULL;
}
}
}
g_free (desktop_id);
}
else
{
if (g_file_test (filename, G_FILE_TEST_IS_DIR))
{
subprefix = g_strconcat (prefix, basename, "-", NULL);
get_apps_from_dir (apps, filename, subprefix);
g_free (subprefix);
}
}
g_free (filename);
}
g_dir_close (dir);
}
}
/**
* g_app_info_get_all:
*
* Gets a list of all of the applications currently registered
* on this system.
*
* For desktop files, this includes applications that have
* <literal>NoDisplay=true</literal> set or are excluded from
* display by means of <literal>OnlyShowIn</literal> or
* <literal>NotShowIn</literal>. See g_app_info_should_show().
* The returned list does not include applications which have
* the <literal>Hidden</literal> key set.
*
* Returns: (element-type GAppInfo) (transfer full): a newly allocated #GList of references to #GAppInfo<!---->s.
**/
GList *
g_app_info_get_all (void)
{
const char * const *dirs;
GHashTable *apps;
GHashTableIter iter;
gpointer value;
int i;
GList *infos;
dirs = get_applications_search_path ();
apps = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, NULL);
for (i = 0; dirs[i] != NULL; i++)
get_apps_from_dir (apps, dirs[i], "");
infos = NULL;
g_hash_table_iter_init (&iter, apps);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
if (value)
infos = g_list_prepend (infos, value);
}
g_hash_table_destroy (apps);
return g_list_reverse (infos);
}
/* Cacheing of mimeinfo.cache and defaults.list files */
typedef struct {
char *path;
GHashTable *mime_info_cache_map;
GHashTable *defaults_list_map;
GHashTable *mimeapps_list_added_map;
GHashTable *mimeapps_list_removed_map;
GHashTable *mimeapps_list_defaults_map;
time_t mime_info_cache_timestamp;
time_t defaults_list_timestamp;
time_t mimeapps_list_timestamp;
} MimeInfoCacheDir;
typedef struct {
GList *dirs; /* mimeinfo.cache and defaults.list */
GHashTable *global_defaults_cache; /* global results of defaults.list lookup and validation */
time_t last_stat_time;
guint should_ping_mime_monitor : 1;
} MimeInfoCache;
static MimeInfoCache *mime_info_cache = NULL;
G_LOCK_DEFINE_STATIC (mime_info_cache);
static void mime_info_cache_dir_add_desktop_entries (MimeInfoCacheDir *dir,
const char *mime_type,
char **new_desktop_file_ids);
static MimeInfoCache * mime_info_cache_new (void);
static void
destroy_info_cache_value (gpointer key,
GList *value,
gpointer data)
{
g_list_free_full (value, g_free);
}
static void
destroy_info_cache_map (GHashTable *info_cache_map)
{
g_hash_table_foreach (info_cache_map, (GHFunc)destroy_info_cache_value, NULL);
g_hash_table_destroy (info_cache_map);
}
static gboolean
mime_info_cache_dir_out_of_date (MimeInfoCacheDir *dir,
const char *cache_file,
time_t *timestamp)
{
struct stat buf;
char *filename;
filename = g_build_filename (dir->path, cache_file, NULL);
if (g_stat (filename, &buf) < 0)
{
g_free (filename);
return TRUE;
}
g_free (filename);
if (buf.st_mtime != *timestamp)
return TRUE;
return FALSE;
}
/* Call with lock held */
static gboolean
remove_all (gpointer key,
gpointer value,
gpointer user_data)
{
return TRUE;
}
static void
mime_info_cache_blow_global_cache (void)
{
g_hash_table_foreach_remove (mime_info_cache->global_defaults_cache,
remove_all, NULL);
}
static void
mime_info_cache_dir_init (MimeInfoCacheDir *dir)
{
GError *load_error;
GKeyFile *key_file;
gchar *filename, **mime_types;
int i;
struct stat buf;
load_error = NULL;
mime_types = NULL;
if (dir->mime_info_cache_map != NULL &&
!mime_info_cache_dir_out_of_date (dir, "mimeinfo.cache",
&dir->mime_info_cache_timestamp))
return;
if (dir->mime_info_cache_map != NULL)
destroy_info_cache_map (dir->mime_info_cache_map);
dir->mime_info_cache_map = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
NULL);
key_file = g_key_file_new ();
filename = g_build_filename (dir->path, "mimeinfo.cache", NULL);
if (g_stat (filename, &buf) < 0)
goto error;
if (dir->mime_info_cache_timestamp > 0)
mime_info_cache->should_ping_mime_monitor = TRUE;
dir->mime_info_cache_timestamp = buf.st_mtime;
g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error);
g_free (filename);
filename = NULL;
if (load_error != NULL)
goto error;
mime_types = g_key_file_get_keys (key_file, MIME_CACHE_GROUP,
NULL, &load_error);
if (load_error != NULL)
goto error;
for (i = 0; mime_types[i] != NULL; i++)
{
gchar **desktop_file_ids;
char *unaliased_type;
desktop_file_ids = g_key_file_get_string_list (key_file,
MIME_CACHE_GROUP,
mime_types[i],
NULL,
NULL);
if (desktop_file_ids == NULL)
continue;
unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
mime_info_cache_dir_add_desktop_entries (dir,
unaliased_type,
desktop_file_ids);
g_free (unaliased_type);
g_strfreev (desktop_file_ids);
}
g_strfreev (mime_types);
g_key_file_free (key_file);
return;
error:
g_free (filename);
g_key_file_free (key_file);
if (mime_types != NULL)
g_strfreev (mime_types);
if (load_error)
g_error_free (load_error);
}
static void
mime_info_cache_dir_init_defaults_list (MimeInfoCacheDir *dir)
{
GKeyFile *key_file;
GError *load_error;
gchar *filename, **mime_types;
char *unaliased_type;
char **desktop_file_ids;
int i;
struct stat buf;
load_error = NULL;
mime_types = NULL;
if (dir->defaults_list_map != NULL &&
!mime_info_cache_dir_out_of_date (dir, "defaults.list",
&dir->defaults_list_timestamp))
return;
if (dir->defaults_list_map != NULL)
g_hash_table_destroy (dir->defaults_list_map);
dir->defaults_list_map = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, (GDestroyNotify)g_strfreev);
key_file = g_key_file_new ();
filename = g_build_filename (dir->path, "defaults.list", NULL);
if (g_stat (filename, &buf) < 0)
goto error;
if (dir->defaults_list_timestamp > 0)
mime_info_cache->should_ping_mime_monitor = TRUE;
dir->defaults_list_timestamp = buf.st_mtime;
g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error);
g_free (filename);
filename = NULL;
if (load_error != NULL)
goto error;
mime_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP,
NULL, NULL);
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_file_ids = g_key_file_get_string_list (key_file,
DEFAULT_APPLICATIONS_GROUP,
mime_types[i],
NULL,
NULL);
if (desktop_file_ids == NULL)
continue;
unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
g_hash_table_replace (dir->defaults_list_map,
unaliased_type,
desktop_file_ids);
}
g_strfreev (mime_types);
}
g_key_file_free (key_file);
return;
error:
g_free (filename);
g_key_file_free (key_file);
if (mime_types != NULL)
g_strfreev (mime_types);
if (load_error)
g_error_free (load_error);
}
static void
mime_info_cache_dir_init_mimeapps_list (MimeInfoCacheDir *dir)
{
GKeyFile *key_file;
GError *load_error;
gchar *filename, **mime_types;
char *unaliased_type;
char **desktop_file_ids;
char *desktop_id;
int i;
struct stat buf;
load_error = NULL;
mime_types = NULL;
if (dir->mimeapps_list_added_map != NULL &&
!mime_info_cache_dir_out_of_date (dir, "mimeapps.list",
&dir->mimeapps_list_timestamp))
return;
if (dir->mimeapps_list_added_map != NULL)
g_hash_table_destroy (dir->mimeapps_list_added_map);
dir->mimeapps_list_added_map = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, (GDestroyNotify)g_strfreev);
if (dir->mimeapps_list_removed_map != NULL)
g_hash_table_destroy (dir->mimeapps_list_removed_map);
dir->mimeapps_list_removed_map = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, (GDestroyNotify)g_strfreev);
if (dir->mimeapps_list_defaults_map != NULL)
g_hash_table_destroy (dir->mimeapps_list_defaults_map);
dir->mimeapps_list_defaults_map = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, g_free);
key_file = g_key_file_new ();
filename = g_build_filename (dir->path, "mimeapps.list", NULL);
if (g_stat (filename, &buf) < 0)
goto error;
if (dir->mimeapps_list_timestamp > 0)
mime_info_cache->should_ping_mime_monitor = TRUE;
dir->mimeapps_list_timestamp = buf.st_mtime;
g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error);
g_free (filename);
filename = NULL;
if (load_error != NULL)
goto error;
mime_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP,
NULL, NULL);
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_file_ids = g_key_file_get_string_list (key_file,
ADDED_ASSOCIATIONS_GROUP,
mime_types[i],
NULL,
NULL);
if (desktop_file_ids == NULL)
continue;
unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
g_hash_table_replace (dir->mimeapps_list_added_map,
unaliased_type,
desktop_file_ids);
}
g_strfreev (mime_types);
}
mime_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP,
NULL, NULL);
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_file_ids = g_key_file_get_string_list (key_file,
REMOVED_ASSOCIATIONS_GROUP,
mime_types[i],
NULL,
NULL);
if (desktop_file_ids == NULL)
continue;
unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
g_hash_table_replace (dir->mimeapps_list_removed_map,
unaliased_type,
desktop_file_ids);
}
g_strfreev (mime_types);
}
mime_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP,
NULL, NULL);
if (mime_types != NULL)
{
for (i = 0; mime_types[i] != NULL; i++)
{
desktop_id = g_key_file_get_string (key_file,
DEFAULT_APPLICATIONS_GROUP,
mime_types[i],
NULL);
if (desktop_id == NULL)
continue;
unaliased_type = _g_unix_content_type_unalias (mime_types[i]);
g_hash_table_replace (dir->mimeapps_list_defaults_map,
unaliased_type,
desktop_id);
}
g_strfreev (mime_types);
}
g_key_file_free (key_file);
return;
error:
g_free (filename);
g_key_file_free (key_file);
if (mime_types != NULL)
g_strfreev (mime_types);
if (load_error)
g_error_free (load_error);
}
static MimeInfoCacheDir *
mime_info_cache_dir_new (const char *path)
{
MimeInfoCacheDir *dir;
dir = g_new0 (MimeInfoCacheDir, 1);
dir->path = g_strdup (path);
return dir;
}
static void
mime_info_cache_dir_free (MimeInfoCacheDir *dir)
{
if (dir == NULL)
return;
if (dir->mime_info_cache_map != NULL)
{
destroy_info_cache_map (dir->mime_info_cache_map);
dir->mime_info_cache_map = NULL;
}
if (dir->defaults_list_map != NULL)
{
g_hash_table_destroy (dir->defaults_list_map);
dir->defaults_list_map = NULL;
}
if (dir->mimeapps_list_added_map != NULL)
{
g_hash_table_destroy (dir->mimeapps_list_added_map);
dir->mimeapps_list_added_map = NULL;
}
if (dir->mimeapps_list_removed_map != NULL)
{
g_hash_table_destroy (dir->mimeapps_list_removed_map);
dir->mimeapps_list_removed_map = NULL;
}
if (dir->mimeapps_list_defaults_map != NULL)
{
g_hash_table_destroy (dir->mimeapps_list_defaults_map);
dir->mimeapps_list_defaults_map = NULL;
}
g_free (dir);
}
static void
mime_info_cache_dir_add_desktop_entries (MimeInfoCacheDir *dir,
const char *mime_type,
char **new_desktop_file_ids)
{
GList *desktop_file_ids;
int i;
desktop_file_ids = g_hash_table_lookup (dir->mime_info_cache_map,
mime_type);
for (i = 0; new_desktop_file_ids[i] != NULL; i++)
{
if (!g_list_find_custom (desktop_file_ids, new_desktop_file_ids[i], (GCompareFunc) strcmp))
desktop_file_ids = g_list_append (desktop_file_ids,
g_strdup (new_desktop_file_ids[i]));
}
g_hash_table_insert (dir->mime_info_cache_map, g_strdup (mime_type), desktop_file_ids);
}
static void
mime_info_cache_init_dir_lists (void)
{
const char * const *dirs;
int i;
mime_info_cache = mime_info_cache_new ();
dirs = get_applications_search_path ();
for (i = 0; dirs[i] != NULL; i++)
{
MimeInfoCacheDir *dir;
dir = mime_info_cache_dir_new (dirs[i]);
if (dir != NULL)
{
mime_info_cache_dir_init (dir);
mime_info_cache_dir_init_defaults_list (dir);
mime_info_cache_dir_init_mimeapps_list (dir);
mime_info_cache->dirs = g_list_append (mime_info_cache->dirs, dir);
}
}
}
static void
mime_info_cache_update_dir_lists (void)
{
GList *tmp;
tmp = mime_info_cache->dirs;
while (tmp != NULL)
{
MimeInfoCacheDir *dir = (MimeInfoCacheDir *) tmp->data;
/* No need to do this if we had file monitors... */
mime_info_cache_blow_global_cache ();
mime_info_cache_dir_init (dir);
mime_info_cache_dir_init_defaults_list (dir);
mime_info_cache_dir_init_mimeapps_list (dir);
tmp = tmp->next;
}
}
static void
mime_info_cache_init (void)
{
G_LOCK (mime_info_cache);
if (mime_info_cache == NULL)
mime_info_cache_init_dir_lists ();
else
{
time_t now;
time (&now);
if (now >= mime_info_cache->last_stat_time + 10)
{
mime_info_cache_update_dir_lists ();
mime_info_cache->last_stat_time = now;
}
}
if (mime_info_cache->should_ping_mime_monitor)
{
/* g_idle_add (emit_mime_changed, NULL); */
mime_info_cache->should_ping_mime_monitor = FALSE;
}
G_UNLOCK (mime_info_cache);
}
static MimeInfoCache *
mime_info_cache_new (void)
{
MimeInfoCache *cache;
cache = g_new0 (MimeInfoCache, 1);
cache->global_defaults_cache = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) g_free);
return cache;
}
static void
mime_info_cache_free (MimeInfoCache *cache)
{
if (cache == NULL)
return;
g_list_free_full (cache->dirs, (GDestroyNotify) mime_info_cache_dir_free);
g_hash_table_destroy (cache->global_defaults_cache);
g_free (cache);
}
/**
* mime_info_cache_reload:
* @dir: directory path which needs reloading.
*
* Reload the mime information for the @dir.
*/
static void
mime_info_cache_reload (const char *dir)
{
/* FIXME: just reload the dir that needs reloading,
* don't blow the whole cache
*/
if (mime_info_cache != NULL)
{
G_LOCK (mime_info_cache);
mime_info_cache_free (mime_info_cache);
mime_info_cache = NULL;
G_UNLOCK (mime_info_cache);
}
}
static GList *
append_desktop_entry (GList *list,
const char *desktop_entry,
GList *removed_entries)
{
/* Add if not already in list, and valid */
if (!g_list_find_custom (list, desktop_entry, (GCompareFunc) strcmp) &&
!g_list_find_custom (removed_entries, desktop_entry, (GCompareFunc) strcmp))
list = g_list_prepend (list, g_strdup (desktop_entry));
return list;
}
/**
* get_all_desktop_entries_for_mime_type:
* @mime_type: a mime type.
* @except: NULL or a strv list
*
* Returns all the desktop ids for @mime_type. The desktop files
* are listed in an order so that default applications are listed before
* non-default ones, and handlers for inherited mimetypes are listed
* after the base ones.
*
* Optionally doesn't list the desktop ids given in the @except
*
* Return value: a #GList containing the desktop ids which claim
* to handle @mime_type.
*/
static GList *
get_all_desktop_entries_for_mime_type (const char *base_mime_type,
const char **except,
gboolean include_fallback,
char **explicit_default)
{
GList *desktop_entries, *removed_entries, *list, *dir_list, *tmp;
MimeInfoCacheDir *dir;
char *mime_type, *default_entry = NULL;
char *old_default_entry = NULL;
const char *entry;
char **mime_types;
char **default_entries;
char **removed_associations;
gboolean already_found_handler;
int i, j, k;
GPtrArray *array;
char **anc;
mime_info_cache_init ();
if (include_fallback)
{
/* collect all ancestors */
mime_types = _g_unix_content_type_get_parents (base_mime_type);
array = g_ptr_array_new ();
for (i = 0; mime_types[i]; i++)
g_ptr_array_add (array, mime_types[i]);
g_free (mime_types);
for (i = 0; i < array->len; i++)
{
anc = _g_unix_content_type_get_parents (g_ptr_array_index (array, i));
for (j = 0; anc[j]; j++)
{
for (k = 0; k < array->len; k++)
{
if (strcmp (anc[j], g_ptr_array_index (array, k)) == 0)
break;
}
if (k == array->len) /* not found */
g_ptr_array_add (array, g_strdup (anc[j]));
}
g_strfreev (anc);
}
g_ptr_array_add (array, NULL);
mime_types = (char **)g_ptr_array_free (array, FALSE);
}
else
{
mime_types = g_malloc0 (2 * sizeof (gchar *));
mime_types[0] = g_strdup (base_mime_type);
mime_types[1] = NULL;
}
G_LOCK (mime_info_cache);
removed_entries = NULL;
desktop_entries = NULL;
for (i = 0; except != NULL && except[i] != NULL; i++)
removed_entries = g_list_prepend (removed_entries, g_strdup (except[i]));
for (i = 0; mime_types[i] != NULL; i++)
{
mime_type = mime_types[i];
/* This is true if we already found a handler for a more specific
mimetype. If its set we ignore any defaults for the less specific
mimetypes. */
already_found_handler = (desktop_entries != NULL);
/* Go through all apps listed in user and system dirs */
for (dir_list = mime_info_cache->dirs;
dir_list != NULL;
dir_list = dir_list->next)
{
dir = dir_list->data;
/* Pick the explicit default application if we got no result earlier
* (ie, for more specific mime types)
*/
if (!already_found_handler)
{
entry = g_hash_table_lookup (dir->mimeapps_list_defaults_map, mime_type);
if (entry != NULL)
{
/* Save the default entry if it's the first one we encounter */
if (default_entry == NULL)
default_entry = g_strdup (entry);
}
}
/* Then added associations from mimeapps.list */
default_entries = g_hash_table_lookup (dir->mimeapps_list_added_map, mime_type);
for (j = 0; default_entries != NULL && default_entries[j] != NULL; j++)
desktop_entries = append_desktop_entry (desktop_entries, default_entries[j], removed_entries);
/* Then removed associations from mimeapps.list */
removed_associations = g_hash_table_lookup (dir->mimeapps_list_removed_map, mime_type);
for (j = 0; removed_associations != NULL && removed_associations[j] != NULL; j++)
removed_entries = append_desktop_entry (removed_entries, removed_associations[j], NULL);
/* Then system defaults (or old per-user config) (using removed associations from this dir or earlier) */
default_entries = g_hash_table_lookup (dir->defaults_list_map, mime_type);
for (j = 0; default_entries != NULL && default_entries[j] != NULL; j++)
{
if (default_entry == NULL && old_default_entry == NULL && !already_found_handler)
old_default_entry = g_strdup (default_entries[j]);
desktop_entries = append_desktop_entry (desktop_entries, default_entries[j], removed_entries);
}
}
/* Go through all entries that support the mimetype */
for (dir_list = mime_info_cache->dirs;
dir_list != NULL;
dir_list = dir_list->next)
{
dir = dir_list->data;
list = g_hash_table_lookup (dir->mime_info_cache_map, mime_type);
for (tmp = list; tmp != NULL; tmp = tmp->next)
desktop_entries = append_desktop_entry (desktop_entries, tmp->data, removed_entries);
}
}
G_UNLOCK (mime_info_cache);
g_strfreev (mime_types);
/* If we have no default from mimeapps.list, take it from
* defaults.list intead.
*
* If we do have a default from mimeapps.list, free any one that came
* from defaults.list.
*/
if (default_entry == NULL)
default_entry = old_default_entry;
else
g_free (old_default_entry);
if (explicit_default != NULL)
*explicit_default = default_entry;
else
g_free (default_entry);
g_list_free_full (removed_entries, g_free);
desktop_entries = g_list_reverse (desktop_entries);
return desktop_entries;
}
/* GDesktopAppInfoLookup interface: */
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
typedef GDesktopAppInfoLookupIface GDesktopAppInfoLookupInterface;
G_DEFINE_INTERFACE (GDesktopAppInfoLookup, g_desktop_app_info_lookup, G_TYPE_OBJECT)
static void
g_desktop_app_info_lookup_default_init (GDesktopAppInfoLookupInterface *iface)
{
}
/**
* g_desktop_app_info_lookup_get_default_for_uri_scheme:
* @lookup: a #GDesktopAppInfoLookup
* @uri_scheme: a string containing a URI scheme.
*
* Gets the default application for launching applications
* using this URI scheme for a particular GDesktopAppInfoLookup
* implementation.
*
* The GDesktopAppInfoLookup interface and this function is used
* to implement g_app_info_get_default_for_uri_scheme() backends
* in a GIO module. There is no reason for applications to use it
* directly. Applications should use g_app_info_get_default_for_uri_scheme().
*
* Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error.
*
* Deprecated: The #GDesktopAppInfoLookup interface is deprecated and unused by gio.
*/
GAppInfo *
g_desktop_app_info_lookup_get_default_for_uri_scheme (GDesktopAppInfoLookup *lookup,
const char *uri_scheme)
{
GDesktopAppInfoLookupIface *iface;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO_LOOKUP (lookup), NULL);
iface = G_DESKTOP_APP_INFO_LOOKUP_GET_IFACE (lookup);
return (* iface->get_default_for_uri_scheme) (lookup, uri_scheme);
}
G_GNUC_END_IGNORE_DEPRECATIONS
/**
* g_desktop_app_info_get_startup_wm_class:
* @info: a #GDesktopAppInfo that supports startup notify
*
* Retrieves the StartupWMClass field from @info. This represents the
* WM_CLASS property of the main window of the application, if launched
* through @info.
*
* Returns: (transfer none): the startup WM class, or %NULL if none is set
* in the desktop file.
*
* Since: 2.34
*/
const char *
g_desktop_app_info_get_startup_wm_class (GDesktopAppInfo *info)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return info->startup_wm_class;
}
/**
* g_desktop_app_info_get_string:
* @info: a #GDesktopAppInfo
* @key: the key to look up
*
* Looks up a string value in the keyfile backing @info.
*
* The @key is looked up in the "Desktop Entry" group.
*
* Returns: a newly allocated string, or %NULL if the key
* is not found
*
* Since: 2.36
*/
char *
g_desktop_app_info_get_string (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return g_key_file_get_string (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, NULL);
}
/**
* g_desktop_app_info_get_boolean:
* @info: a #GDesktopAppInfo
* @key: the key to look up
*
* Looks up a boolean value in the keyfile backing @info.
*
* The @key is looked up in the "Desktop Entry" group.
*
* Returns: the boolean value, or %FALSE if the key
* is not found
*
* Since: 2.36
*/
gboolean
g_desktop_app_info_get_boolean (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
return g_key_file_get_boolean (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, NULL);
}
/**
* g_desktop_app_info_has_key:
* @info: a #GDesktopAppInfo
* @key: the key to look up
*
* Returns whether @key exists in the "Desktop Entry" group
* of the keyfile backing @info.
*
* Returns: %TRUE if the @key exists
*
* Since: 2.26
*/
gboolean
g_desktop_app_info_has_key (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
return g_key_file_has_key (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, NULL);
}
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