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fuchsia / third_party / glib / c79c234c352ff748056a30da6d4a49de0d2f878d / . / gio / gdesktopappinfo.c
blob: d0ffbace3e0bcfa3283173443daedbb882d3d6e9 [file] [log] [blame]
/* 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 2.1 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, see <http://www.gnu.org/licenses/>.
*
* Author: Alexander Larsson <alexl@redhat.com>
* Ryan Lortie <desrt@desrt.ca>
*/
/* Prelude {{{1 */
#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"
#ifdef G_OS_UNIX
#include "glib-unix.h"
#endif
#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"
#include "gappinfoprivate.h"
#include "glocalfilemonitor.h"
#ifdef G_OS_UNIX
#include "gdocumentportal.h"
#endif
/**
* 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 `<gio/gdesktopappinfo.h>` belongs to the UNIX-specific
* GIO interfaces, thus you have to use the `gio-unix-2.0.pc` 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 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;
char *app_id;
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;
char **actions;
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))
/* DesktopFileDir implementation {{{1 */
typedef struct
{
gchar *path;
gchar *alternatively_watching;
gboolean is_config;
gboolean is_setup;
GFileMonitor *monitor;
GHashTable *app_names;
GHashTable *mime_tweaks;
GHashTable *memory_index;
GHashTable *memory_implementations;
} DesktopFileDir;
static DesktopFileDir *desktop_file_dirs;
static guint n_desktop_file_dirs;
static const guint desktop_file_dir_user_config_index = 0;
static guint desktop_file_dir_user_data_index;
static GMutex desktop_file_dir_lock;
static const gchar *gio_launch_desktop_path = NULL;
/* Monitor 'changed' signal handler {{{2 */
static void desktop_file_dir_reset (DesktopFileDir *dir);
/*< internal >
* desktop_file_dir_get_alternative_dir:
* @dir: a #DesktopFileDir
*
* Gets the "alternative" directory to monitor in case the path
* doesn't exist.
*
* If the path exists this will return NULL, otherwise it will return a
* parent directory of the path.
*
* This is used to avoid inotify on a non-existent directory (which
* results in polling).
*
* See https://bugzilla.gnome.org/show_bug.cgi?id=522314 for more info.
*/
static gchar *
desktop_file_dir_get_alternative_dir (DesktopFileDir *dir)
{
gchar *parent;
/* If the directory itself exists then we need no alternative. */
if (g_access (dir->path, R_OK | X_OK) == 0)
return NULL;
/* Otherwise, try the parent directories until we find one. */
parent = g_path_get_dirname (dir->path);
while (g_access (parent, R_OK | X_OK) != 0)
{
gchar *tmp = parent;
parent = g_path_get_dirname (tmp);
/* If somehow we get to '/' or '.' then just stop... */
if (g_str_equal (parent, tmp))
{
g_free (tmp);
break;
}
g_free (tmp);
}
return parent;
}
static void
desktop_file_dir_changed (GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event_type,
gpointer user_data)
{
DesktopFileDir *dir = user_data;
gboolean do_nothing = FALSE;
/* We are not interested in receiving notifications forever just
* because someone asked about one desktop file once.
*
* After we receive the first notification, reset the dir, destroying
* the monitor. We will take this as a hint, next time that we are
* asked, that we need to check if everything is up to date.
*
* If this is a notification for a parent directory (because the
* desktop directory didn't exist) then we shouldn't fire the signal
* unless something actually changed.
*/
g_mutex_lock (&desktop_file_dir_lock);
if (dir->alternatively_watching)
{
gchar *alternative_dir;
alternative_dir = desktop_file_dir_get_alternative_dir (dir);
do_nothing = alternative_dir && g_str_equal (dir->alternatively_watching, alternative_dir);
g_free (alternative_dir);
}
if (!do_nothing)
desktop_file_dir_reset (dir);
g_mutex_unlock (&desktop_file_dir_lock);
/* Notify anyone else who may be interested */
if (!do_nothing)
g_app_info_monitor_fire ();
}
/* Internal utility functions {{{2 */
/*< internal >
* desktop_file_dir_app_name_is_masked:
* @dir: a #DesktopFileDir
* @app_name: an application ID
*
* Checks if @app_name is masked for @dir.
*
* An application is masked if a similarly-named desktop file exists in
* a desktop file directory with higher precedence. Masked desktop
* files should be ignored.
*/
static gboolean
desktop_file_dir_app_name_is_masked (DesktopFileDir *dir,
const gchar *app_name)
{
while (dir > desktop_file_dirs)
{
dir--;
if (dir->app_names && g_hash_table_contains (dir->app_names, app_name))
return TRUE;
}
return FALSE;
}
static const gchar * const *
get_lowercase_current_desktops (void)
{
static gchar **result;
if (g_once_init_enter (&result))
{
const gchar *envvar;
gchar **tmp;
envvar = g_getenv ("XDG_CURRENT_DESKTOP");
if (envvar)
{
gint i, j;
tmp = g_strsplit (envvar, G_SEARCHPATH_SEPARATOR_S, 0);
for (i = 0; tmp[i]; i++)
for (j = 0; tmp[i][j]; j++)
tmp[i][j] = g_ascii_tolower (tmp[i][j]);
}
else
tmp = g_new0 (gchar *, 0 + 1);
g_once_init_leave (&result, tmp);
}
return (const gchar **) result;
}
static const gchar * const *
get_current_desktops (const gchar *value)
{
static gchar **result;
if (g_once_init_enter (&result))
{
gchar **tmp;
if (!value)
value = g_getenv ("XDG_CURRENT_DESKTOP");
if (!value)
value = "";
tmp = g_strsplit (value, ":", 0);
g_once_init_leave (&result, tmp);
}
return (const gchar **) result;
}
/*< internal >
* add_to_table_if_appropriate:
* @apps: a string to GDesktopAppInfo hash table
* @app_name: the name of the application
* @info: a #GDesktopAppInfo, or NULL
*
* If @info is non-%NULL and non-hidden, then add it to @apps, using
* @app_name as a key.
*
* If @info is non-%NULL then this function will consume the passed-in
* reference.
*/
static void
add_to_table_if_appropriate (GHashTable *apps,
const gchar *app_name,
GDesktopAppInfo *info)
{
if (!info)
return;
if (info->hidden)
{
g_object_unref (info);
return;
}
g_free (info->desktop_id);
info->desktop_id = g_strdup (app_name);
g_hash_table_insert (apps, g_strdup (info->desktop_id), info);
}
enum
{
DESKTOP_KEY_Comment,
DESKTOP_KEY_Exec,
DESKTOP_KEY_GenericName,
DESKTOP_KEY_Keywords,
DESKTOP_KEY_Name,
DESKTOP_KEY_X_GNOME_FullName,
N_DESKTOP_KEYS
};
const gchar desktop_key_match_category[N_DESKTOP_KEYS] = {
/* Note: lower numbers are a better match.
*
* In case we want two keys to match at the same level, we can just
* use the same number for the two different keys.
*/
[DESKTOP_KEY_Name] = 1,
[DESKTOP_KEY_Exec] = 2,
[DESKTOP_KEY_Keywords] = 3,
[DESKTOP_KEY_GenericName] = 4,
[DESKTOP_KEY_X_GNOME_FullName] = 5,
[DESKTOP_KEY_Comment] = 6
};
/* Common prefix commands to ignore from Exec= lines */
const char * const exec_key_match_blacklist[] = {
"bash",
"env",
"flatpak",
"gjs",
"pkexec",
"python",
"python2",
"python3",
"sh",
"wine",
"wine64",
NULL
};
static gchar *
desktop_key_get_name (guint key_id)
{
switch (key_id)
{
case DESKTOP_KEY_Comment:
return "Comment";
case DESKTOP_KEY_Exec:
return "Exec";
case DESKTOP_KEY_GenericName:
return GENERIC_NAME_KEY;
case DESKTOP_KEY_Keywords:
return KEYWORDS_KEY;
case DESKTOP_KEY_Name:
return "Name";
case DESKTOP_KEY_X_GNOME_FullName:
return FULL_NAME_KEY;
default:
g_assert_not_reached ();
}
}
/* Search global state {{{2
*
* We only ever search under a global lock, so we can use (and reuse)
* some global data to reduce allocations made while searching.
*
* In short, we keep around arrays of results that we expand as needed
* (and never shrink).
*
* static_token_results: this is where we append the results for each
* token within a given desktop directory, as we handle it (which is
* a union of all matches for this term)
*
* static_search_results: this is where we build the complete results
* for a single directory (which is an intersection of the matches
* found for each term)
*
* static_total_results: this is where we build the complete results
* across all directories (which is a union of the matches found in
* each directory)
*
* The app_names that enter these tables are always pointer-unique (in
* the sense that string equality is the same as pointer equality).
* This can be guaranteed for two reasons:
*
* - we mask appids so that a given appid will only ever appear within
* the highest-precedence directory that contains it. We never
* return search results from a lower-level directory if a desktop
* file exists in a higher-level one.
*
* - within a given directory, the string is unique because it's the
* key in the hashtable of all app_ids for that directory.
*
* We perform a merging of the results in merge_token_results(). This
* works by ordering the two lists and moving through each of them (at
* the same time) looking for common elements, rejecting uncommon ones.
* "Order" here need not mean any particular thing, as long as it is
* some order. Because of the uniqueness of our strings, we can use
* pointer order. That's what's going on in compare_results() below.
*/
struct search_result
{
const gchar *app_name;
gint category;
};
static struct search_result *static_token_results;
static gint static_token_results_size;
static gint static_token_results_allocated;
static struct search_result *static_search_results;
static gint static_search_results_size;
static gint static_search_results_allocated;
static struct search_result *static_total_results;
static gint static_total_results_size;
static gint static_total_results_allocated;
/* And some functions for performing nice operations against it */
static gint
compare_results (gconstpointer a,
gconstpointer b)
{
const struct search_result *ra = a;
const struct search_result *rb = b;
if (ra->app_name < rb->app_name)
return -1;
else if (ra->app_name > rb->app_name)
return 1;
else
return ra->category - rb->category;
}
static gint
compare_categories (gconstpointer a,
gconstpointer b)
{
const struct search_result *ra = a;
const struct search_result *rb = b;
return ra->category - rb->category;
}
static void
add_token_result (const gchar *app_name,
guint16 category)
{
if G_UNLIKELY (static_token_results_size == static_token_results_allocated)
{
static_token_results_allocated = MAX (16, static_token_results_allocated * 2);
static_token_results = g_renew (struct search_result, static_token_results, static_token_results_allocated);
}
static_token_results[static_token_results_size].app_name = app_name;
static_token_results[static_token_results_size].category = category;
static_token_results_size++;
}
static void
merge_token_results (gboolean first)
{
if (static_token_results_size != 0)
qsort (static_token_results, static_token_results_size, sizeof (struct search_result), compare_results);
/* If this is the first token then we are basically merging a list with
* itself -- we only perform de-duplication.
*
* If this is not the first token then we are doing a real merge.
*/
if (first)
{
const gchar *last_name = NULL;
gint i;
/* We must de-duplicate, but we do so by taking the best category
* in each case.
*
* The final list can be as large as the input here, so make sure
* we have enough room (even if it's too much room).
*/
if G_UNLIKELY (static_search_results_allocated < static_token_results_size)
{
static_search_results_allocated = static_token_results_allocated;
static_search_results = g_renew (struct search_result,
static_search_results,
static_search_results_allocated);
}
for (i = 0; i < static_token_results_size; i++)
{
/* The list is sorted so that the best match for a given id
* will be at the front, so once we have copied an id, skip
* the rest of the entries for the same id.
*/
if (static_token_results[i].app_name == last_name)
continue;
last_name = static_token_results[i].app_name;
static_search_results[static_search_results_size++] = static_token_results[i];
}
}
else
{
const gchar *last_name = NULL;
gint i, j = 0;
gint k = 0;
/* We only ever remove items from the results list, so no need to
* resize to ensure that we have enough room.
*/
for (i = 0; i < static_token_results_size; i++)
{
if (static_token_results[i].app_name == last_name)
continue;
last_name = static_token_results[i].app_name;
/* Now we only want to have a result in static_search_results
* if we already have it there *and* we have it in
* static_token_results as well. The category will be the
* lesser of the two.
*
* Skip past the results in static_search_results that are not
* going to be matches.
*/
while (k < static_search_results_size &&
static_search_results[k].app_name < static_token_results[i].app_name)
k++;
if (k < static_search_results_size &&
static_search_results[k].app_name == static_token_results[i].app_name)
{
/* We have a match.
*
* Category should be the worse of the two (ie:
* numerically larger).
*/
static_search_results[j].app_name = static_search_results[k].app_name;
static_search_results[j].category = MAX (static_search_results[k].category,
static_token_results[i].category);
j++;
}
}
static_search_results_size = j;
}
/* Clear it out for next time... */
static_token_results_size = 0;
}
static void
reset_total_search_results (void)
{
static_total_results_size = 0;
}
static void
sort_total_search_results (void)
{
if (static_total_results_size != 0)
qsort (static_total_results, static_total_results_size, sizeof (struct search_result), compare_categories);
}
static void
merge_directory_results (void)
{
if G_UNLIKELY (static_total_results_size + static_search_results_size > static_total_results_allocated)
{
static_total_results_allocated = MAX (16, static_total_results_allocated);
while (static_total_results_allocated < static_total_results_size + static_search_results_size)
static_total_results_allocated *= 2;
static_total_results = g_renew (struct search_result, static_total_results, static_total_results_allocated);
}
if (static_total_results + static_total_results_size != 0)
memcpy (static_total_results + static_total_results_size,
static_search_results,
static_search_results_size * sizeof (struct search_result));
static_total_results_size += static_search_results_size;
/* Clear it out for next time... */
static_search_results_size = 0;
}
/* Support for unindexed DesktopFileDirs {{{2 */
static void
get_apps_from_dir (GHashTable **apps,
const char *dirname,
const char *prefix)
{
const char *basename;
GDir *dir;
dir = g_dir_open (dirname, 0, NULL);
if (dir == NULL)
return;
while ((basename = g_dir_read_name (dir)) != NULL)
{
gchar *filename;
filename = g_build_filename (dirname, basename, NULL);
if (g_str_has_suffix (basename, ".desktop"))
{
gchar *app_name;
app_name = g_strconcat (prefix, basename, NULL);
if (*apps == NULL)
*apps = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
g_hash_table_insert (*apps, app_name, g_strdup (filename));
}
else if (g_file_test (filename, G_FILE_TEST_IS_DIR))
{
gchar *subprefix;
subprefix = g_strconcat (prefix, basename, "-", NULL);
get_apps_from_dir (apps, filename, subprefix);
g_free (subprefix);
}
g_free (filename);
}
g_dir_close (dir);
}
typedef struct
{
gchar **additions;
gchar **removals;
gchar **defaults;
} UnindexedMimeTweaks;
static void
free_mime_tweaks (gpointer data)
{
UnindexedMimeTweaks *tweaks = data;
g_strfreev (tweaks->additions);
g_strfreev (tweaks->removals);
g_strfreev (tweaks->defaults);
g_slice_free (UnindexedMimeTweaks, tweaks);
}
static UnindexedMimeTweaks *
desktop_file_dir_unindexed_get_tweaks (DesktopFileDir *dir,
const gchar *mime_type)
{
UnindexedMimeTweaks *tweaks;
gchar *unaliased_type;
unaliased_type = _g_unix_content_type_unalias (mime_type);
tweaks = g_hash_table_lookup (dir->mime_tweaks, unaliased_type);
if (tweaks == NULL)
{
tweaks = g_slice_new0 (UnindexedMimeTweaks);
g_hash_table_insert (dir->mime_tweaks, unaliased_type, tweaks);
}
else
g_free (unaliased_type);
return tweaks;
}
/* consumes 'to_add' */
static void
expand_strv (gchar ***strv_ptr,
gchar **to_add,
gchar * const *blacklist)
{
guint strv_len, add_len;
gchar **strv;
guint i, j;
if (!*strv_ptr)
{
*strv_ptr = to_add;
return;
}
strv = *strv_ptr;
strv_len = g_strv_length (strv);
add_len = g_strv_length (to_add);
strv = g_renew (gchar *, strv, strv_len + add_len + 1);
for (i = 0; to_add[i]; i++)
{
/* Don't add blacklisted strings */
if (blacklist)
for (j = 0; blacklist[j]; j++)
if (g_str_equal (to_add[i], blacklist[j]))
goto no_add;
/* Don't add duplicates already in the list */
for (j = 0; j < strv_len; j++)
if (g_str_equal (to_add[i], strv[j]))
goto no_add;
strv[strv_len++] = to_add[i];
continue;
no_add:
g_free (to_add[i]);
}
strv[strv_len] = NULL;
*strv_ptr = strv;
g_free (to_add);
}
static void
desktop_file_dir_unindexed_read_mimeapps_list (DesktopFileDir *dir,
const gchar *filename,
const gchar *added_group,
gboolean tweaks_permitted)
{
UnindexedMimeTweaks *tweaks;
char **desktop_file_ids;
GKeyFile *key_file;
gchar **mime_types;
int i;
key_file = g_key_file_new ();
if (!g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL))
{
g_key_file_free (key_file);
return;
}
mime_types = g_key_file_get_keys (key_file, added_group, NULL, NULL);
if G_UNLIKELY (mime_types != NULL && !tweaks_permitted)
{
g_warning ("%s contains a [%s] group, but it is not permitted here. Only the non-desktop-specific "
"mimeapps.list file may add or remove associations.", filename, added_group);
g_strfreev (mime_types);
mime_types = 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_group, mime_types[i], NULL, NULL);
if (desktop_file_ids)
{
tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]);
expand_strv (&tweaks->additions, desktop_file_ids, tweaks->removals);
}
}
g_strfreev (mime_types);
}
mime_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL);
if G_UNLIKELY (mime_types != NULL && !tweaks_permitted)
{
g_warning ("%s contains a [%s] group, but it is not permitted here. Only the non-desktop-specific "
"mimeapps.list file may add or remove associations.", filename, REMOVED_ASSOCIATIONS_GROUP);
g_strfreev (mime_types);
mime_types = 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)
{
tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]);
expand_strv (&tweaks->removals, desktop_file_ids, tweaks->additions);
}
}
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_file_ids = g_key_file_get_string_list (key_file, DEFAULT_APPLICATIONS_GROUP, mime_types[i], NULL, NULL);
if (desktop_file_ids)
{
tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]);
expand_strv (&tweaks->defaults, desktop_file_ids, NULL);
}
}
g_strfreev (mime_types);
}
g_key_file_free (key_file);
}
static void
desktop_file_dir_unindexed_read_mimeapps_lists (DesktopFileDir *dir)
{
const gchar * const *desktops;
gchar *filename;
gint i;
dir->mime_tweaks = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, free_mime_tweaks);
/* We process in order of precedence, using a blacklisting approach to
* avoid recording later instructions that conflict with ones we found
* earlier.
*
* We first start with the XDG_CURRENT_DESKTOP files, in precedence
* order.
*/
desktops = get_lowercase_current_desktops ();
for (i = 0; desktops[i]; i++)
{
filename = g_strdup_printf ("%s/%s-mimeapps.list", dir->path, desktops[i]);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, ADDED_ASSOCIATIONS_GROUP, FALSE);
g_free (filename);
}
/* Next, the non-desktop-specific mimeapps.list */
filename = g_strdup_printf ("%s/mimeapps.list", dir->path);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, ADDED_ASSOCIATIONS_GROUP, TRUE);
g_free (filename);
/* The remaining files are only checked for in directories that might
* contain desktop files (ie: not the config dirs).
*/
if (dir->is_config)
return;
/* We have 'defaults.list' which was only ever understood by GLib. It
* exists widely, but it has never been part of any spec and it should
* be treated as deprecated. This will be removed in a future
* version.
*/
filename = g_strdup_printf ("%s/defaults.list", dir->path);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, ADDED_ASSOCIATIONS_GROUP, FALSE);
g_free (filename);
/* Finally, the mimeinfo.cache, which is just a cached copy of what we
* would find in the MimeTypes= lines of all of the desktop files.
*/
filename = g_strdup_printf ("%s/mimeinfo.cache", dir->path);
desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, MIME_CACHE_GROUP, TRUE);
g_free (filename);
}
static void
desktop_file_dir_unindexed_init (DesktopFileDir *dir)
{
if (!dir->is_config)
get_apps_from_dir (&dir->app_names, dir->path, "");
desktop_file_dir_unindexed_read_mimeapps_lists (dir);
}
static GDesktopAppInfo *
desktop_file_dir_unindexed_get_app (DesktopFileDir *dir,
const gchar *desktop_id)
{
const gchar *filename;
filename = g_hash_table_lookup (dir->app_names, desktop_id);
if (!filename)
return NULL;
return g_desktop_app_info_new_from_filename (filename);
}
static void
desktop_file_dir_unindexed_get_all (DesktopFileDir *dir,
GHashTable *apps)
{
GHashTableIter iter;
gpointer app_name;
gpointer filename;
if (dir->app_names == NULL)
return;
g_hash_table_iter_init (&iter, dir->app_names);
while (g_hash_table_iter_next (&iter, &app_name, &filename))
{
if (desktop_file_dir_app_name_is_masked (dir, app_name))
continue;
add_to_table_if_appropriate (apps, app_name, g_desktop_app_info_new_from_filename (filename));
}
}
typedef struct _MemoryIndexEntry MemoryIndexEntry;
typedef GHashTable MemoryIndex;
struct _MemoryIndexEntry
{
const gchar *app_name; /* pointer to the hashtable key */
gint match_category;
MemoryIndexEntry *next;
};
static void
memory_index_entry_free (gpointer data)
{
MemoryIndexEntry *mie = data;
while (mie)
{
MemoryIndexEntry *next = mie->next;
g_slice_free (MemoryIndexEntry, mie);
mie = next;
}
}
static void
memory_index_add_token (MemoryIndex *mi,
const gchar *token,
gint match_category,
const gchar *app_name)
{
MemoryIndexEntry *mie, *first;
mie = g_slice_new (MemoryIndexEntry);
mie->app_name = app_name;
mie->match_category = match_category;
first = g_hash_table_lookup (mi, token);
if (first)
{
mie->next = first->next;
first->next = mie;
}
else
{
mie->next = NULL;
g_hash_table_insert (mi, g_strdup (token), mie);
}
}
static void
memory_index_add_string (MemoryIndex *mi,
const gchar *string,
gint match_category,
const gchar *app_name)
{
gchar **tokens, **alternates;
gint i;
tokens = g_str_tokenize_and_fold (string, NULL, &alternates);
for (i = 0; tokens[i]; i++)
memory_index_add_token (mi, tokens[i], match_category, app_name);
for (i = 0; alternates[i]; i++)
memory_index_add_token (mi, alternates[i], match_category, app_name);
g_strfreev (alternates);
g_strfreev (tokens);
}
static MemoryIndex *
memory_index_new (void)
{
return g_hash_table_new_full (g_str_hash, g_str_equal, g_free, memory_index_entry_free);
}
static void
desktop_file_dir_unindexed_setup_search (DesktopFileDir *dir)
{
GHashTableIter iter;
gpointer app, path;
dir->memory_index = memory_index_new ();
dir->memory_implementations = memory_index_new ();
/* Nothing to search? */
if (dir->app_names == NULL)
return;
g_hash_table_iter_init (&iter, dir->app_names);
while (g_hash_table_iter_next (&iter, &app, &path))
{
GKeyFile *key_file;
if (desktop_file_dir_app_name_is_masked (dir, app))
continue;
key_file = g_key_file_new ();
if (g_key_file_load_from_file (key_file, path, G_KEY_FILE_NONE, NULL) &&
!g_key_file_get_boolean (key_file, "Desktop Entry", "Hidden", NULL))
{
/* Index the interesting keys... */
gchar **implements;
gint i;
for (i = 0; i < G_N_ELEMENTS (desktop_key_match_category); i++)
{
const gchar *value;
gchar *raw;
if (!desktop_key_match_category[i])
continue;
raw = g_key_file_get_locale_string (key_file, "Desktop Entry", desktop_key_get_name (i), NULL, NULL);
value = raw;
if (i == DESKTOP_KEY_Exec && raw != NULL)
{
/* Special handling: only match basename of first field */
gchar *space;
gchar *slash;
/* Remove extra arguments, if any */
space = raw + strcspn (raw, " \t\n"); /* IFS */
*space = '\0';
/* Skip the pathname, if any */
if ((slash = strrchr (raw, '/')))
value = slash + 1;
/* Don't match on blacklisted binaries like interpreters */
if (g_strv_contains (exec_key_match_blacklist, value))
value = NULL;
}
if (value)
memory_index_add_string (dir->memory_index, value, desktop_key_match_category[i], app);
g_free (raw);
}
/* Make note of the Implements= line */
implements = g_key_file_get_string_list (key_file, "Desktop Entry", "Implements", NULL, NULL);
for (i = 0; implements && implements[i]; i++)
memory_index_add_token (dir->memory_implementations, implements[i], 0, app);
g_strfreev (implements);
}
g_key_file_free (key_file);
}
}
static void
desktop_file_dir_unindexed_search (DesktopFileDir *dir,
const gchar *search_token)
{
GHashTableIter iter;
gpointer key, value;
if (!dir->memory_index)
desktop_file_dir_unindexed_setup_search (dir);
g_hash_table_iter_init (&iter, dir->memory_index);
while (g_hash_table_iter_next (&iter, &key, &value))
{
MemoryIndexEntry *mie = value;
if (!g_str_has_prefix (key, search_token))
continue;
while (mie)
{
add_token_result (mie->app_name, mie->match_category);
mie = mie->next;
}
}
}
static gboolean
array_contains (GPtrArray *array,
const gchar *str)
{
gint i;
for (i = 0; i < array->len; i++)
if (g_str_equal (array->pdata[i], str))
return TRUE;
return FALSE;
}
static void
desktop_file_dir_unindexed_mime_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *hits,
GPtrArray *blacklist)
{
UnindexedMimeTweaks *tweaks;
gint i;
tweaks = g_hash_table_lookup (dir->mime_tweaks, mime_type);
if (!tweaks)
return;
if (tweaks->additions)
{
for (i = 0; tweaks->additions[i]; i++)
{
gchar *app_name = tweaks->additions[i];
if (!desktop_file_dir_app_name_is_masked (dir, app_name) &&
!array_contains (blacklist, app_name) && !array_contains (hits, app_name))
g_ptr_array_add (hits, app_name);
}
}
if (tweaks->removals)
{
for (i = 0; tweaks->removals[i]; i++)
{
gchar *app_name = tweaks->removals[i];
if (!desktop_file_dir_app_name_is_masked (dir, app_name) &&
!array_contains (blacklist, app_name) && !array_contains (hits, app_name))
g_ptr_array_add (blacklist, app_name);
}
}
}
static void
desktop_file_dir_unindexed_default_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *results)
{
UnindexedMimeTweaks *tweaks;
gint i;
tweaks = g_hash_table_lookup (dir->mime_tweaks, mime_type);
if (!tweaks || !tweaks->defaults)
return;
for (i = 0; tweaks->defaults[i]; i++)
{
gchar *app_name = tweaks->defaults[i];
if (!array_contains (results, app_name))
g_ptr_array_add (results, app_name);
}
}
static void
desktop_file_dir_unindexed_get_implementations (DesktopFileDir *dir,
GList **results,
const gchar *interface)
{
MemoryIndexEntry *mie;
if (!dir->memory_index)
desktop_file_dir_unindexed_setup_search (dir);
for (mie = g_hash_table_lookup (dir->memory_implementations, interface); mie; mie = mie->next)
*results = g_list_prepend (*results, g_strdup (mie->app_name));
}
/* DesktopFileDir "API" {{{2 */
/*< internal >
* desktop_file_dir_create:
* @array: the #GArray to add a new item to
* @data_dir: an XDG_DATA_DIR
*
* Creates a #DesktopFileDir for the corresponding @data_dir, adding it
* to @array.
*/
static void
desktop_file_dir_create (GArray *array,
const gchar *data_dir)
{
DesktopFileDir dir = { 0, };
dir.path = g_build_filename (data_dir, "applications", NULL);
g_array_append_val (array, dir);
}
/*< internal >
* desktop_file_dir_create:
* @array: the #GArray to add a new item to
* @config_dir: an XDG_CONFIG_DIR
*
* Just the same as desktop_file_dir_create() except that it does not
* add the "applications" directory. It also marks the directory as
* config-only, which prevents us from attempting to find desktop files
* here.
*/
static void
desktop_file_dir_create_for_config (GArray *array,
const gchar *config_dir)
{
DesktopFileDir dir = { 0, };
dir.path = g_strdup (config_dir);
dir.is_config = TRUE;
g_array_append_val (array, dir);
}
/*< internal >
* desktop_file_dir_reset:
* @dir: a #DesktopFileDir
*
* Cleans up @dir, releasing most resources that it was using.
*/
static void
desktop_file_dir_reset (DesktopFileDir *dir)
{
if (dir->alternatively_watching)
{
g_free (dir->alternatively_watching);
dir->alternatively_watching = NULL;
}
if (dir->monitor)
{
g_signal_handlers_disconnect_by_func (dir->monitor, desktop_file_dir_changed, dir);
g_object_unref (dir->monitor);
dir->monitor = NULL;
}
if (dir->app_names)
{
g_hash_table_unref (dir->app_names);
dir->app_names = NULL;
}
if (dir->memory_index)
{
g_hash_table_unref (dir->memory_index);
dir->memory_index = NULL;
}
if (dir->mime_tweaks)
{
g_hash_table_unref (dir->mime_tweaks);
dir->mime_tweaks = NULL;
}
if (dir->memory_implementations)
{
g_hash_table_unref (dir->memory_implementations);
dir->memory_implementations = NULL;
}
dir->is_setup = FALSE;
}
/*< internal >
* desktop_file_dir_init:
* @dir: a #DesktopFileDir
*
* Does initial setup for @dir
*
* You should only call this if @dir is not already setup.
*/
static void
desktop_file_dir_init (DesktopFileDir *dir)
{
const gchar *watch_dir;
g_assert (!dir->is_setup);
g_assert (!dir->alternatively_watching);
g_assert (!dir->monitor);
dir->alternatively_watching = desktop_file_dir_get_alternative_dir (dir);
watch_dir = dir->alternatively_watching ? dir->alternatively_watching : dir->path;
/* There is a very thin race here if the watch_dir has been _removed_
* between when we checked for it and when we establish the watch.
* Removes probably don't happen in usual operation, and even if it
* does (and we catch the unlikely race), the only degradation is that
* we will fall back to polling.
*/
dir->monitor = g_local_file_monitor_new_in_worker (watch_dir, TRUE, G_FILE_MONITOR_NONE,
desktop_file_dir_changed, dir, NULL);
desktop_file_dir_unindexed_init (dir);
dir->is_setup = TRUE;
}
/*< internal >
* desktop_file_dir_get_app:
* @dir: a DesktopFileDir
* @desktop_id: the desktop ID to load
*
* Creates the #GDesktopAppInfo for the given @desktop_id if it exists
* within @dir, even if it is hidden.
*
* This function does not check if @desktop_id would be masked by a
* directory with higher precedence. The caller must do so.
*/
static GDesktopAppInfo *
desktop_file_dir_get_app (DesktopFileDir *dir,
const gchar *desktop_id)
{
if (!dir->app_names)
return NULL;
return desktop_file_dir_unindexed_get_app (dir, desktop_id);
}
/*< internal >
* desktop_file_dir_get_all:
* @dir: a DesktopFileDir
* @apps: a #GHashTable<string, GDesktopAppInfo>
*
* Loads all desktop files in @dir and adds them to @apps, careful to
* ensure we don't add any files masked by a similarly-named file in a
* higher-precedence directory.
*/
static void
desktop_file_dir_get_all (DesktopFileDir *dir,
GHashTable *apps)
{
desktop_file_dir_unindexed_get_all (dir, apps);
}
/*< internal >
* desktop_file_dir_mime_lookup:
* @dir: a #DesktopFileDir
* @mime_type: the mime type to look up
* @hits: the array to store the hits
* @blacklist: the array to store the blacklist
*
* Does a lookup of a mimetype against one desktop file directory,
* recording any hits and blacklisting and "Removed" associations (so
* later directories don't record them as hits).
*
* The items added to @hits are duplicated, but the ones in @blacklist
* are weak pointers. This facilitates simply freeing the blacklist
* (which is only used for internal bookkeeping) but using the pdata of
* @hits as the result of the operation.
*/
static void
desktop_file_dir_mime_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *hits,
GPtrArray *blacklist)
{
desktop_file_dir_unindexed_mime_lookup (dir, mime_type, hits, blacklist);
}
/*< internal >
* desktop_file_dir_default_lookup:
* @dir: a #DesktopFileDir
* @mime_type: the mime type to look up
* @results: an array to store the results in
*
* Collects the "default" applications for a given mime type from @dir.
*/
static void
desktop_file_dir_default_lookup (DesktopFileDir *dir,
const gchar *mime_type,
GPtrArray *results)
{
desktop_file_dir_unindexed_default_lookup (dir, mime_type, results);
}
/*< internal >
* desktop_file_dir_search:
* @dir: a #DesktopFileDir
* @term: a normalised and casefolded search term
*
* Finds the names of applications in @dir that match @term.
*/
static void
desktop_file_dir_search (DesktopFileDir *dir,
const gchar *search_token)
{
desktop_file_dir_unindexed_search (dir, search_token);
}
static void
desktop_file_dir_get_implementations (DesktopFileDir *dir,
GList **results,
const gchar *interface)
{
desktop_file_dir_unindexed_get_implementations (dir, results, interface);
}
/* Lock/unlock and global setup API {{{2 */
static void
desktop_file_dirs_lock (void)
{
gint i;
g_mutex_lock (&desktop_file_dir_lock);
if (desktop_file_dirs == NULL)
{
const char * const *dirs;
GArray *tmp;
gint i;
tmp = g_array_new (FALSE, FALSE, sizeof (DesktopFileDir));
/* First, the configs. Highest priority: the user's ~/.config */
desktop_file_dir_create_for_config (tmp, g_get_user_config_dir ());
/* Next, the system configs (/etc/xdg, and so on). */
dirs = g_get_system_config_dirs ();
for (i = 0; dirs[i]; i++)
desktop_file_dir_create_for_config (tmp, dirs[i]);
/* Now the data. Highest priority: the user's ~/.local/share/applications */
desktop_file_dir_user_data_index = tmp->len;
desktop_file_dir_create (tmp, g_get_user_data_dir ());
/* Following that, XDG_DATA_DIRS/applications, in order */
dirs = g_get_system_data_dirs ();
for (i = 0; dirs[i]; i++)
desktop_file_dir_create (tmp, dirs[i]);
/* The list of directories will never change after this. */
desktop_file_dirs = (DesktopFileDir *) tmp->data;
n_desktop_file_dirs = tmp->len;
g_array_free (tmp, FALSE);
}
for (i = 0; i < n_desktop_file_dirs; i++)
if (!desktop_file_dirs[i].is_setup)
desktop_file_dir_init (&desktop_file_dirs[i]);
}
static void
desktop_file_dirs_unlock (void)
{
g_mutex_unlock (&desktop_file_dir_lock);
}
static void
desktop_file_dirs_invalidate_user_config (void)
{
g_mutex_lock (&desktop_file_dir_lock);
if (n_desktop_file_dirs)
desktop_file_dir_reset (&desktop_file_dirs[desktop_file_dir_user_config_index]);
g_mutex_unlock (&desktop_file_dir_lock);
}
static void
desktop_file_dirs_invalidate_user_data (void)
{
g_mutex_lock (&desktop_file_dir_lock);
if (n_desktop_file_dirs)
desktop_file_dir_reset (&desktop_file_dirs[desktop_file_dir_user_data_index]);
g_mutex_unlock (&desktop_file_dir_lock);
}
/* GDesktopAppInfo implementation {{{1 */
/* GObject implementation {{{2 */
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_free (info->app_id);
g_strfreev (info->actions);
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)
{
}
/* Construction... {{{2 */
/*< internal >
* binary_from_exec:
* @exec: an exec line
*
* Returns the first word in an exec line (ie: the binary name).
*
* If @exec is " progname --foo %F" then returns "progname".
*/
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;
char *exec;
gboolean bus_activatable;
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);
}
exec = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_EXEC,
NULL);
if (exec && exec[0] != '\0')
{
gint argc;
char **argv;
if (!g_shell_parse_argv (exec, &argc, &argv, NULL))
{
g_free (exec);
g_free (try_exec);
return FALSE;
}
else
{
char *t;
t = g_find_program_in_path (argv[0]);
g_strfreev (argv);
if (t == NULL)
{
g_free (exec);
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 = exec;
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);
bus_activatable = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_DBUS_ACTIVATABLE, NULL);
info->actions = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ACTIONS, NULL, NULL);
/* Remove the special-case: no Actions= key just means 0 extra actions */
if (info->actions == NULL)
info->actions = g_new0 (gchar *, 0 + 1);
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;
}
/* Can only be DBusActivatable if we know the filename, which means
* that this won't work for the load-from-keyfile case.
*/
if (bus_activatable && info->filename)
{
gchar *basename;
gchar *last_dot;
basename = g_path_get_basename (info->filename);
last_dot = strrchr (basename, '.');
if (last_dot && g_str_equal (last_dot, ".desktop"))
{
*last_dot = '\0';
if (g_dbus_is_name (basename) && basename[0] != ':')
info->app_id = g_strdup (basename);
}
g_free (basename);
}
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);
self->desktop_id = g_path_get_basename (self->filename);
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: (nullable): 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: (type filename): the path of a desktop file, in the GLib
* filename encoding
*
* Creates a new #GDesktopAppInfo.
*
* Returns: (nullable): 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 `applications` subdirectories of the XDG
* data directories (i.e. the directories specified in the `XDG_DATA_HOME`
* and `XDG_DATA_DIRS` environment variables). GIO also supports the
* prefix-to-subdirectory mapping that is described in the
* [Menu Spec](http://standards.freedesktop.org/menu-spec/latest/)
* (i.e. a desktop id of kde-foo.desktop will match
* `/usr/share/applications/kde/foo.desktop`).
*
* Returns: (nullable): a new #GDesktopAppInfo, or %NULL if no desktop
* file with that id exists.
*/
GDesktopAppInfo *
g_desktop_app_info_new (const char *desktop_id)
{
GDesktopAppInfo *appinfo = NULL;
guint i;
desktop_file_dirs_lock ();
for (i = 0; i < n_desktop_file_dirs; i++)
{
appinfo = desktop_file_dir_get_app (&desktop_file_dirs[i], desktop_id);
if (appinfo)
break;
}
desktop_file_dirs_unlock ();
if (appinfo == NULL)
return NULL;
g_free (appinfo->desktop_id);
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->app_id = g_strdup (info->app_id);
new_info->hidden = info->hidden;
new_info->terminal = info->terminal;
new_info->startup_notify = info->startup_notify;
return G_APP_INFO (new_info);
}
/* GAppInfo interface implementation functions {{{2 */
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: (type filename): 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: (nullable): 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
* `OnlyShowIn` and `NotShowIn` keys.
*
* @desktop_env should typically be given as %NULL, in which case the
* `XDG_CURRENT_DESKTOP` environment variable is consulted. If you want
* to override the default mechanism then you may specify @desktop_env,
* but this is not recommended.
*
* 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
* `OnlyShowIn` and `NotShowIn` keys, %FALSE
* otherwise.
*
* Since: 2.30
*/
gboolean
g_desktop_app_info_get_show_in (GDesktopAppInfo *info,
const gchar *desktop_env)
{
const gchar *specified_envs[] = { desktop_env, NULL };
const gchar * const *envs;
gint i;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE);
if (desktop_env)
envs = specified_envs;
else
envs = get_current_desktops (NULL);
for (i = 0; envs[i]; i++)
{
gint j;
if (info->only_show_in)
for (j = 0; info->only_show_in[j]; j++)
if (g_str_equal (info->only_show_in[j], envs[i]))
return TRUE;
if (info->not_show_in)
for (j = 0; info->not_show_in[j]; j++)
if (g_str_equal (info->not_show_in[j], envs[i]))
return FALSE;
}
return info->only_show_in == NULL;
}
/* Launching... {{{2 */
static char *
expand_macro_single (char macro, const char *uri)
{
GFile *file;
char *result = NULL;
char *path = NULL;
char *name;
file = g_file_new_for_uri (uri);
switch (macro)
{
case 'u':
case 'U':
result = g_shell_quote (uri);
break;
case 'f':
case 'F':
path = g_file_get_path (file);
if (path)
result = g_shell_quote (path);
break;
case 'd':
case 'D':
path = g_file_get_path (file);
if (path)
{
name = g_path_get_dirname (path);
result = g_shell_quote (name);
g_free (name);
}
break;
case 'n':
case 'N':
path = g_file_get_path (file);
if (path)
{
name = g_path_get_basename (path);
result = g_shell_quote (name);
g_free (name);
}
break;
}
g_object_unref (file);
g_free (path);
return result;
}
static char *
expand_macro_uri (char macro, const char *uri, gboolean force_file_uri, char force_file_uri_macro)
{
char *expanded = NULL;
g_return_val_if_fail (uri != NULL, NULL);
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);
}
return expanded;
}
static void
expand_macro (char macro,
GString *exec,
GDesktopAppInfo *info,
GList **uri_list)
{
GList *uris = *uri_list;
char *expanded = NULL;
gboolean force_file_uri;
char force_file_uri_macro;
const 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;
expanded = expand_macro_uri (macro, uri,
force_file_uri, force_file_uri_macro);
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;
expanded = expand_macro_uri (macro, uri,
force_file_uri, force_file_uri_macro);
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,
const gchar *exec_line,
GList **uris,
int *argc,
char ***argv,
GError **error)
{
GList *uri_list = *uris;
const char *p = exec_line;
GString *expanded_exec;
gboolean res;
if (exec_line == 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 ("dtterm");
if (check == NULL)
{
check = g_strdup ("xterm");
g_debug ("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);
}
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_with_spawn (GDesktopAppInfo *info,
GDBusConnection *session_bus,
const gchar *exec_line,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
gint stdin_fd,
gint stdout_fd,
gint stderr_fd,
GError **error)
{
gboolean completed = FALSE;
GList *old_uris;
GList *dup_uris;
char **argv, **envp;
int argc;
g_return_val_if_fail (info != NULL, FALSE);
argv = NULL;
if (launch_context)
envp = g_app_launch_context_get_environment (launch_context);
else
envp = g_get_environ ();
/* The GList* passed to expand_application_parameters() will be modified
* internally by expand_macro(), so we need to pass a copy of it instead,
* and also use that copy to control the exit condition of the loop below.
*/
dup_uris = g_list_copy (uris);
do
{
GPid pid;
GList *launched_uris;
GList *iter;
char *sn_id = NULL;
char **wrapped_argv;
int i;
old_uris = dup_uris;
if (!expand_application_parameters (info, exec_line, &dup_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 != dup_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;
}
if (info->filename)
envp = g_environ_setenv (envp,
"GIO_LAUNCHED_DESKTOP_FILE",
info->filename,
TRUE);
sn_id = NULL;
if (launch_context)
{
GList *launched_files = create_files_for_uris (launched_uris);
if (info->startup_notify)
{
sn_id = g_app_launch_context_get_startup_notify_id (launch_context,
G_APP_INFO (info),
launched_files);
if (sn_id)
envp = g_environ_setenv (envp, "DESKTOP_STARTUP_ID", sn_id, TRUE);
}
g_list_free_full (launched_files, g_object_unref);
}
if (g_once_init_enter (&gio_launch_desktop_path))
{
const gchar *tmp;
/* Allow test suite to specify path to gio-launch-desktop */
tmp = g_getenv ("GIO_LAUNCH_DESKTOP");
/* Fall back on usual searching in $PATH */
if (tmp == NULL)
tmp = "gio-launch-desktop";
g_once_init_leave (&gio_launch_desktop_path, tmp);
}
wrapped_argv = g_new (char *, argc + 2);
wrapped_argv[0] = g_strdup (gio_launch_desktop_path);
for (i = 0; i < argc; i++)
wrapped_argv[i + 1] = g_steal_pointer (&argv[i]);
wrapped_argv[i + 1] = NULL;
g_free (argv);
argv = NULL;
if (!g_spawn_async_with_fds (info->path,
wrapped_argv,
envp,
spawn_flags,
user_setup,
user_setup_data,
&pid,
stdin_fd,
stdout_fd,
stderr_fd,
error))
{
if (sn_id)
g_app_launch_context_launch_failed (launch_context, sn_id);
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,
NULL,
sn_id,
launched_uris);
g_free (sn_id);
g_list_free (launched_uris);
g_strfreev (wrapped_argv);
wrapped_argv = NULL;
}
while (dup_uris != NULL);
completed = TRUE;
out:
g_list_free (dup_uris);
g_strfreev (argv);
g_strfreev (envp);
return completed;
}
static gchar *
object_path_from_appid (const gchar *appid)
{
gchar *appid_path, *iter;
appid_path = g_strconcat ("/", appid, NULL);
for (iter = appid_path; *iter; iter++)
{
if (*iter == '.')
*iter = '/';
if (*iter == '-')
*iter = '_';
}
return appid_path;
}
static GVariant *
g_desktop_app_info_make_platform_data (GDesktopAppInfo *info,
GList *uris,
GAppLaunchContext *launch_context)
{
GVariantBuilder builder;
g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
if (launch_context)
{
GList *launched_files = create_files_for_uris (uris);
if (info->startup_notify)
{
gchar *sn_id;
sn_id = g_app_launch_context_get_startup_notify_id (launch_context, G_APP_INFO (info), launched_files);
if (sn_id)
g_variant_builder_add (&builder, "{sv}", "desktop-startup-id", g_variant_new_take_string (sn_id));
}
g_list_free_full (launched_files, g_object_unref);
}
return g_variant_builder_end (&builder);
}
static void
launch_uris_with_dbus (GDesktopAppInfo *info,
GDBusConnection *session_bus,
GList *uris,
GAppLaunchContext *launch_context)
{
GVariantBuilder builder;
gchar *object_path;
g_variant_builder_init (&builder, G_VARIANT_TYPE_TUPLE);
if (uris)
{
GList *iter;
g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
for (iter = uris; iter; iter = iter->next)
g_variant_builder_add (&builder, "s", iter->data);
g_variant_builder_close (&builder);
}
g_variant_builder_add_value (&builder, g_desktop_app_info_make_platform_data (info, uris, launch_context));
/* This is non-blocking API. Similar to launching via fork()/exec()
* we don't wait around to see if the program crashed during startup.
* This is what startup-notification's job is...
*/
object_path = object_path_from_appid (info->app_id);
g_dbus_connection_call (session_bus, info->app_id, object_path, "org.freedesktop.Application",
uris ? "Open" : "Activate", g_variant_builder_end (&builder),
NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
g_free (object_path);
}
static gboolean
g_desktop_app_info_launch_uris_with_dbus (GDesktopAppInfo *info,
GDBusConnection *session_bus,
GList *uris,
GAppLaunchContext *launch_context)
{
GList *ruris = uris;
char *app_id = NULL;
g_return_val_if_fail (info != NULL, FALSE);
#ifdef G_OS_UNIX
app_id = g_desktop_app_info_get_string (info, "X-Flatpak");
if (app_id && *app_id)
{
ruris = g_document_portal_add_documents (uris, app_id, NULL);
if (ruris == NULL)
ruris = uris;
}
#endif
launch_uris_with_dbus (info, session_bus, ruris, launch_context);
if (ruris != uris)
g_list_free_full (ruris, g_free);
g_free (app_id);
return TRUE;
}
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,
gint stdin_fd,
gint stdout_fd,
gint stderr_fd,
GError **error)
{
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo);
GDBusConnection *session_bus;
gboolean success = TRUE;
session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
if (session_bus && info->app_id)
g_desktop_app_info_launch_uris_with_dbus (info, session_bus, uris, launch_context);
else
success = g_desktop_app_info_launch_uris_with_spawn (info, session_bus, info->exec, uris, launch_context,
spawn_flags, user_setup, user_setup_data,
pid_callback, pid_callback_data,
stdin_fd, stdout_fd, stderr_fd, error);
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);
g_object_unref (session_bus);
}
return success;
}
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,
-1, -1, -1,
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_with_fds:
* @appinfo: a #GDesktopAppInfo
* @uris: (element-type utf8): List of URIs
* @launch_context: (nullable): a #GAppLaunchContext
* @spawn_flags: #GSpawnFlags, used for each process
* @user_setup: (scope async) (nullable): a #GSpawnChildSetupFunc, used once
* for each process.
* @user_setup_data: (closure user_setup) (nullable): User data for @user_setup
* @pid_callback: (scope call) (nullable): Callback for child processes
* @pid_callback_data: (closure pid_callback) (nullable): User data for @callback
* @stdin_fd: file descriptor to use for child's stdin, or -1
* @stdout_fd: file descriptor to use for child's stdout, or -1
* @stderr_fd: file descriptor to use for child's stderr, or -1
* @error: return location for a #GError, or %NULL
*
* Equivalent to g_desktop_app_info_launch_uris_as_manager() but allows
* you to pass in file descriptors for the stdin, stdout and stderr streams
* of the launched process.
*
* If application launching occurs via some non-spawn mechanism (e.g. D-Bus
* activation) then @stdin_fd, @stdout_fd and @stderr_fd are ignored.
*
* Returns: %TRUE on successful launch, %FALSE otherwise.
*
* Since: 2.58
*/
gboolean
g_desktop_app_info_launch_uris_as_manager_with_fds (GDesktopAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GSpawnFlags spawn_flags,
GSpawnChildSetupFunc user_setup,
gpointer user_setup_data,
GDesktopAppLaunchCallback pid_callback,
gpointer pid_callback_data,
gint stdin_fd,
gint stdout_fd,
gint stderr_fd,
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,
stdin_fd,
stdout_fd,
stderr_fd,
error);
}
/**
* g_desktop_app_info_launch_uris_as_manager:
* @appinfo: a #GDesktopAppInfo
* @uris: (element-type utf8): List of URIs
* @launch_context: (nullable): a #GAppLaunchContext
* @spawn_flags: #GSpawnFlags, used for each process
* @user_setup: (scope async) (nullable): a #GSpawnChildSetupFunc, used once
* for each process.
* @user_setup_data: (closure user_setup) (nullable): User data for @user_setup
* @pid_callback: (scope call) (nullable): Callback for child processes
* @pid_callback_data: (closure pid_callback) (nullable): 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().
*
* If the application is launched via GSpawn, then @spawn_flags, @user_setup
* and @user_setup_data are used for the call to g_spawn_async().
* Additionally, @pid_callback (with @pid_callback_data) will be called to
* inform about the PID of the created process. See g_spawn_async_with_pipes()
* for information on certain parameter conditions that can enable an
* optimized posix_spawn() codepath to be used.
*
* If application launching occurs via some other mechanism (eg: D-Bus
* activation) then @spawn_flags, @user_setup, @user_setup_data,
* @pid_callback and @pid_callback_data are ignored.
*
* 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_as_manager_with_fds (appinfo,
uris,
launch_context,
spawn_flags,
user_setup,
user_setup_data,
pid_callback,
pid_callback_data,
-1, -1, -1,
error);
}
/* OnlyShowIn API support {{{2 */
/**
* 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
* `OnlyShowIn` and `NotShowIn`
* desktop entry fields.
*
* Should be called only once; subsequent calls are ignored.
*
* Deprecated:2.42:do not use this API. Since 2.42 the value of the
* `XDG_CURRENT_DESKTOP` environment variable will be used.
*/
void
g_desktop_app_info_set_desktop_env (const gchar *desktop_env)
{
get_current_desktops (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);
}
/* mime types/default apps support {{{2 */
typedef enum {
CONF_DIR,
APP_DIR,
MIMETYPE_DIR
} DirType;
static char *
ensure_dir (DirType type,
GError **error)
{
char *path, *display_name;
int errsv;
switch (type)
{
case CONF_DIR:
path = g_build_filename (g_get_user_config_dir (), NULL);
break;
case APP_DIR:
path = g_build_filename (g_get_user_data_dir (), "applications", NULL);
break;
case MIMETYPE_DIR:
path = g_build_filename (g_get_user_data_dir (), "mime", "packages", NULL);
break;
default:
g_assert_not_reached ();
}
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 (CONF_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);