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glib/gio/gdesktopappinfo.c
Christian Hergert 0f95b18a7b gio: use g_variant_builder_init_static() 
All uses of g_variant_builder_init() in gio are safe to translate to the
new g_variant_builder_init_static() alternative as the type will outlive
the call to g_variant_builder_end() (or is already static in nature).
2024-09-26 12:48:16 +01:00

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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
* Copyright © 2007 Ryan Lortie
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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"
/* For the #GDesktopAppInfoLookup macros; since macro deprecation is implemented
* in the preprocessor, we need to define this before including glib.h*/
#ifndef GLIB_DISABLE_DEPRECATION_WARNINGS
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#endif
#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 "glib-private.h"
#include "giomodule-priv.h"
#include "gappinfo.h"
#include "gappinfoprivate.h"
#include "glocalfilemonitor.h"
#include "gutilsprivate.h"
#ifdef G_OS_UNIX
#include "gdocumentportal.h"
#endif
/**
* GDesktopAppInfo:
*
* `GDesktopAppInfo` is an implementation of [iface@Gio.AppInfo] 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 or the `GioUnix-2.0` GIR namespace 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);
static gboolean g_desktop_app_info_load_file (GDesktopAppInfo *self);
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
{
gatomicrefcount ref_count;
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 GPtrArray *desktop_file_dirs = NULL;
static const gchar *desktop_file_dirs_config_dir = NULL;
static DesktopFileDir *desktop_file_dir_user_config = NULL; /* (owned) */
static DesktopFileDir *desktop_file_dir_user_data = NULL; /* (owned) */
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);
static DesktopFileDir *
desktop_file_dir_ref (DesktopFileDir *dir)
{
g_atomic_ref_count_inc (&dir->ref_count);
return dir;
}
static void
desktop_file_dir_unref (DesktopFileDir *dir)
{
if (g_atomic_ref_count_dec (&dir->ref_count))
{
desktop_file_dir_reset (dir);
g_free (dir->path);
g_free (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)
{
guint i;
for (i = 0; i < desktop_file_dirs->len; i++)
{
DesktopFileDir *i_dir = g_ptr_array_index (desktop_file_dirs, i);
if (dir == i_dir)
return FALSE;
if (i_dir->app_names && g_hash_table_contains (i_dir->app_names, app_name))
return TRUE;
}
return FALSE;
}
/* Not much to go on from https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html
* so validate it as a non-empty alphanumeric ASCII string with `-` and `_` allowed.
*
* Validation is important as the desktop IDs are used to construct filenames,
* and may be set by an unprivileged caller if running in a setuid program. */
static gboolean
validate_xdg_desktop (const gchar *desktop)
{
gsize i;
for (i = 0; desktop[i] != '\0'; i++)
if (desktop[i] != '-' && desktop[i] != '_' &&
!g_ascii_isalnum (desktop[i]))
return FALSE;
if (i == 0)
return FALSE;
return TRUE;
}
static char **
get_valid_current_desktops (const char *value)
{
char **tmp;
gsize i;
GPtrArray *valid_desktops;
if (value == NULL)
value = g_getenv ("XDG_CURRENT_DESKTOP");
if (value == NULL)
value = "";
tmp = g_strsplit (value, G_SEARCHPATH_SEPARATOR_S, 0);
valid_desktops = g_ptr_array_new_full (g_strv_length (tmp) + 1, g_free);
for (i = 0; tmp[i]; i++)
{
if (validate_xdg_desktop (tmp[i]))
g_ptr_array_add (valid_desktops, tmp[i]);
else
g_free (tmp[i]);
}
g_ptr_array_add (valid_desktops, NULL);
g_free (tmp);
tmp = (char **) g_ptr_array_steal (valid_desktops, NULL);
g_ptr_array_unref (valid_desktops);
return tmp;
}
static const gchar * const *
get_lowercase_current_desktops (void)
{
static gchar **result;
if (g_once_init_enter_pointer (&result))
{
char **tmp = get_valid_current_desktops (NULL);
gsize i, j;
for (i = 0; tmp[i]; i++)
{
/* Convert to lowercase. */
for (j = 0; tmp[i][j]; j++)
tmp[i][j] = g_ascii_tolower (tmp[i][j]);
}
g_once_init_leave_pointer (&result, tmp);
}
return (const gchar **) result;
}
static const gchar * const *
get_current_desktops (const gchar *value)
{
static gchar **result;
if (g_once_init_enter_pointer (&result))
{
char **tmp = get_valid_current_desktops (value);
g_once_init_leave_pointer (&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_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
};
typedef enum {
/* Lower numbers have higher priority.
* Prefix match should put before substring match, independently of
* category relevance, i.e. a prefix match in 'Keyword' category will
* come before a substring match in a more relevant category like 'Name'.
*/
MATCH_TYPE_PREFIX = 1,
MATCH_TYPE_SUBSTRING = 2
} MatchType;
/* Common prefix commands to ignore from Exec= lines */
const char * const exec_key_match_blocklist[] = {
"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_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;
gint match_type;
};
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
{
/* We prioritize prefix matches over category relevance e.g. a prefix match in 'Keyword'
* category is better than a substring match in a more relevance category like 'Name'.
*/
if (ra->match_type != rb->match_type)
return ra->match_type - rb->match_type;
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;
/* We prioritize prefix matches over category relevance e.g. a prefix match in 'Keyword'
* category is better than a substring match in a more relevance category like 'Name'.
*/
if (ra->match_type != rb->match_type)
return ra->match_type - rb->match_type;
return ra->category - rb->category;
}
static void
add_token_result (const gchar *app_name,
guint16 category,
guint16 match_type)
{
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[static_token_results_size].match_type = match_type;
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).
*
* Match type should also be the worse, so if an app has two
* prefix matches it will has higher priority than one prefix
* matches and one substring matches, for example, LibreOffice
* Writer should be higher priority than LibreOffice Draw with
* `lib w`.
*
* (This ignores the difference between partly prefix matches and
* all substring matches, however most time we just focus on exact
* prefix matches, who cares the 10th-20th search results?)
*/
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);
static_search_results[j].match_type = MAX (static_search_results[k].match_type,
static_token_results[i].match_type);
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_search_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 *blocklist)
{
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 blocklisted strings */
if (blocklist)
for (j = 0; blocklist[j]; j++)
if (g_str_equal (to_add[i], blocklist[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 blocklisting 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 *
g_desktop_app_info_new_from_filename_unlocked (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_clear_object (&info);
return info;
}
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_unlocked (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_unlocked (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;
gsize 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 blocklisted binaries like interpreters */
if (g_strv_contains (exec_key_match_blocklist, 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;
g_assert (search_token != NULL);
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;
const char *p;
MatchType match_type;
/* strstr(haystack, needle) returns haystack if needle is empty, so if
* needle is not empty and return value equals to haystack means a prefix
* match.
*/
p = strstr (key, search_token);
if (p == NULL)
continue;
else if (p == key && *search_token != '\0')
match_type = MATCH_TYPE_PREFIX;
else
match_type = MATCH_TYPE_SUBSTRING;
while (mie)
{
add_token_result (mie->app_name, mie->match_category, match_type);
mie = mie->next;
}
}
}
static gboolean
array_contains (GPtrArray *array,
const gchar *str)
{
guint 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 *blocklist)
{
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 (blocklist, 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 (blocklist, app_name) && !array_contains (hits, app_name))
g_ptr_array_add (blocklist, 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_new:
* @data_dir: an XDG_DATA_DIR
*
* Creates a #DesktopFileDir for the corresponding @data_dir.
*/
static DesktopFileDir *
desktop_file_dir_new (const gchar *data_dir)
{
DesktopFileDir *dir = g_new0 (DesktopFileDir, 1);
g_atomic_ref_count_init (&dir->ref_count);
dir->path = g_build_filename (data_dir, "applications", NULL);
return g_steal_pointer (&dir);
}
/*< internal >
* desktop_file_dir_new_for_config:
* @config_dir: an XDG_CONFIG_DIR
*
* Just the same as desktop_file_dir_new() 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 DesktopFileDir *
desktop_file_dir_new_for_config (const gchar *config_dir)
{
DesktopFileDir *dir = g_new0 (DesktopFileDir, 1);
g_atomic_ref_count_init (&dir->ref_count);
dir->path = g_strdup (config_dir);
dir->is_config = TRUE;
return g_steal_pointer (&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_file_monitor_cancel (dir->monitor);
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;
}
static void
closure_notify_cb (gpointer data,
GClosure *closure)
{
DesktopFileDir *dir = data;
desktop_file_dir_unref (dir);
}
/*< 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,
desktop_file_dir_ref (dir),
closure_notify_cb, 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
* @blocklist: the array to store the blocklist
*
* Does a lookup of a mimetype against one desktop file directory,
* recording any hits and blocklisting and "Removed" associations (so
* later directories don't record them as hits).
*
* The items added to @hits are duplicated, but the ones in @blocklist
* are weak pointers. This facilitates simply freeing the blocklist
* (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 *blocklist)
{
desktop_file_dir_unindexed_mime_lookup (dir, mime_type, hits, blocklist);
}
/*< 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)
{
guint i;
const gchar *user_config_dir = g_get_user_config_dir ();
g_mutex_lock (&desktop_file_dir_lock);
/* If the XDG dirs configuration has changed (expected only during tests),
* clear and reload the state. */
if (desktop_file_dirs_config_dir != NULL &&
g_strcmp0 (desktop_file_dirs_config_dir, user_config_dir) != 0)
{
g_debug ("%s: Resetting desktop app info dirs from %s to %s",
G_STRFUNC, desktop_file_dirs_config_dir, user_config_dir);
g_ptr_array_set_size (desktop_file_dirs, 0);
g_clear_pointer (&desktop_file_dir_user_config, desktop_file_dir_unref);
g_clear_pointer (&desktop_file_dir_user_data, desktop_file_dir_unref);
}
if (desktop_file_dirs == NULL || desktop_file_dirs->len == 0)
{
const char * const *dirs;
gint i;
if (desktop_file_dirs == NULL)
desktop_file_dirs = g_ptr_array_new_with_free_func ((GDestroyNotify) desktop_file_dir_unref);
/* First, the configs. Highest priority: the user's ~/.config */
desktop_file_dir_user_config = desktop_file_dir_new_for_config (user_config_dir);
g_ptr_array_add (desktop_file_dirs, desktop_file_dir_ref (desktop_file_dir_user_config));
/* Next, the system configs (/etc/xdg, and so on). */
dirs = g_get_system_config_dirs ();
for (i = 0; dirs[i]; i++)
g_ptr_array_add (desktop_file_dirs, desktop_file_dir_new_for_config (dirs[i]));
/* Now the data. Highest priority: the user's ~/.local/share/applications */
desktop_file_dir_user_data = desktop_file_dir_new (g_get_user_data_dir ());
g_ptr_array_add (desktop_file_dirs, desktop_file_dir_ref (desktop_file_dir_user_data));
/* Following that, XDG_DATA_DIRS/applications, in order */
dirs = g_get_system_data_dirs ();
for (i = 0; dirs[i]; i++)
g_ptr_array_add (desktop_file_dirs, desktop_file_dir_new (dirs[i]));
/* The list of directories will never change after this, unless
* g_get_user_config_dir() changes due to %G_TEST_OPTION_ISOLATE_DIRS. */
desktop_file_dirs_config_dir = user_config_dir;
}
for (i = 0; i < desktop_file_dirs->len; i++)
if (!((DesktopFileDir *) g_ptr_array_index (desktop_file_dirs, i))->is_setup)
desktop_file_dir_init (g_ptr_array_index (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 (desktop_file_dir_user_config != NULL)
desktop_file_dir_reset (desktop_file_dir_user_config);
g_mutex_unlock (&desktop_file_dir_lock);
}
static void
desktop_file_dirs_invalidate_user_data (void)
{
g_mutex_lock (&desktop_file_dir_lock);
if (desktop_file_dir_user_data != NULL)
desktop_file_dir_reset (desktop_file_dir_user_data);
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 [class@Gio.DesktopAppInfo]
*/
g_object_class_install_property (gobject_class,
PROP_FILENAME,
g_param_spec_string ("filename", NULL, NULL, 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);
}
/*< internal >
* g_desktop_app_info_get_desktop_id_for_filename
* @self: #GDesktopAppInfo to get desktop id of
*
* Tries to find the desktop ID for a particular `.desktop` filename, as per the
* [Desktop Entry Specification](https://specifications.freedesktop.org/desktop-
* entry-spec/desktop-entry-spec-latest.html#desktop-file-id).
*
* Returns: desktop id or basename if filename is unknown.
*/
static char *
g_desktop_app_info_get_desktop_id_for_filename (GDesktopAppInfo *self)
{
guint i;
gchar *desktop_id = NULL;
g_return_val_if_fail (self->filename != NULL, NULL);
for (i = 0; i < desktop_file_dirs->len; i++)
{
DesktopFileDir *dir = g_ptr_array_index (desktop_file_dirs, i);
GHashTable *app_names;
GHashTableIter iter;
gpointer key, value;
app_names = dir->app_names;
if (!app_names)
continue;
g_hash_table_iter_init (&iter, app_names);
while (g_hash_table_iter_next (&iter, &key, &value))
{
if (!strcmp (value, self->filename))
{
desktop_id = g_strdup (key);
break;
}
}
if (desktop_id)
break;
}
if (!desktop_id)
desktop_id = g_path_get_basename (self->filename);
return g_steal_pointer (&desktop_id);
}
static gboolean
g_desktop_app_info_load_from_keyfile (GDesktopAppInfo *info,
GKeyFile *key_file)
{
char *start_group;
char *type;
char *try_exec;
char *exec;
char *path;
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);
path = g_key_file_get_string (key_file,
G_KEY_FILE_DESKTOP_GROUP,
G_KEY_FILE_DESKTOP_KEY_PATH, NULL);
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;
/* Use the desktop file path (if any) as working dir to search program */
t = GLIB_PRIVATE_CALL (g_find_program_for_path) (try_exec, NULL, path);
if (t == NULL)
{
g_free (path);
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 (path);
g_free (exec);
g_free (try_exec);
return FALSE;
}
else
{
char *t;
/* Since @exec is not an empty string, there must be at least one
* argument, so dereferencing argv[0] should return non-NULL. */
g_assert (argc > 0);
/* Use the desktop file path (if any) as working dir to search program */
t = GLIB_PRIVATE_CALL (g_find_program_for_path) (argv[0], NULL, path);
g_strfreev (argv);
if (t == NULL)
{
g_free (path);
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_steal_pointer (&path);
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);
}
if (info->filename)
info->desktop_id = g_desktop_app_info_get_desktop_id_for_filename (info);
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 [type@GLib.KeyFile]
*
* Creates a new [class@Gio.DesktopAppInfo].
*
* Returns: (nullable): a new [class@Gio.DesktopAppInfo] 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;
desktop_file_dirs_lock ();
if (!g_desktop_app_info_load_from_keyfile (info, key_file))
g_clear_object (&info);
desktop_file_dirs_unlock ();
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 [class@Gio.DesktopAppInfo].
*
* Returns: (nullable): a new [class@Gio.DesktopAppInfo] or `NULL` on error.
**/
GDesktopAppInfo *
g_desktop_app_info_new_from_filename (const char *filename)
{
GDesktopAppInfo *info = NULL;
desktop_file_dirs_lock ();
info = g_desktop_app_info_new_from_filename_unlocked (filename);
desktop_file_dirs_unlock ();
return info;
}
/**
* g_desktop_app_info_new:
* @desktop_id: the desktop file ID
*
* Creates a new [class@Gio.DesktopAppInfo] 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 [class@Gio.DesktopAppInfo], 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 < desktop_file_dirs->len; i++)
{
appinfo = desktop_file_dir_get_app (g_ptr_array_index (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 [class@Gio.DesktopAppInfo].
*
* A desktop file is hidden if the
* [`Hidden` key](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-hidden)
* 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 [class@Gio.DesktopAppInfo]
*
* When @info was created from a known filename, return it. In some
* situations such as a [class@Gio.DesktopAppInfo] returned from
* [ctor@Gio.DesktopAppInfo.new_from_keyfile], this function will return `NULL`.
*
* Returns: (nullable) (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 [class@Gio.DesktopAppInfo]
*
* Gets the categories from the desktop file.
*
* Returns: (nullable): The unparsed
* [`Categories` key](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-categories)
* 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 [class@Gio.DesktopAppInfo]
*
* Gets the keywords from the desktop file.
*
* Returns: (transfer none): The value of the
* [`Keywords` key](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-keywords)
*
* 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 [class@Gio.DesktopAppInfo]
*
* Gets the generic name from the desktop file.
*
* Returns: (nullable): The value of the
* [`GenericName` key](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-genericname)
*/
const char *
g_desktop_app_info_get_generic_name (GDesktopAppInfo *info)
{
return info->generic_name;
}
/**
* g_desktop_app_info_get_nodisplay:
* @info: a [class@Gio.DesktopAppInfo]
*
* Gets the value of the
* [`NoDisplay` key](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-nodisplay)
* which helps determine if the application info should be shown in menus. See
* `G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY` and [method@Gio.AppInfo.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 [class@Gio.DesktopAppInfo]
* @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`](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-onlyshowin)
* and [`NotShowIn`](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-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 [method@Gio.AppInfo.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,
const char *path,
const char *working_dir)
{
#ifndef G_OS_WIN32
char **real_argv;
size_t real_argc;
size_t i;
size_t term_argc;
char *found_terminal;
char **the_argv;
const char *term_arg = NULL;
static const struct {
const char *exec;
const char *exec_arg;
} known_terminals[] = {
{ "xdg-terminal-exec", NULL },
{ "kgx", "-e" },
{ "gnome-terminal", "--" },
{ "mate-terminal", "-x" },
{ "xfce4-terminal", "-x" },
{ "tilix", "-e" },
{ "konsole", "-e" },
{ "nxterm", "-e" },
{ "color-xterm", "-e" },
{ "rxvt", "-e" },
{ "dtterm", "-e" },
{ "xterm", "-e" }
};
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 ((*argc) = 0; the_argv[*argc] != NULL; (*argc)++)
;
}
for (i = 0, found_terminal = NULL; i < G_N_ELEMENTS (known_terminals); i++)
{
found_terminal = GLIB_PRIVATE_CALL (g_find_program_for_path) (known_terminals[i].exec,
path, working_dir);
if (found_terminal != NULL)
{
term_arg = known_terminals[i].exec_arg;
break;
}
}
if (found_terminal == NULL)
{
g_debug ("Couldn’t find a known terminal");
return FALSE;
}
/* check if the terminal require an option */
term_argc = term_arg ? 2 : 1;
real_argc = term_argc + *argc;
real_argv = g_new (char *, real_argc + 1);
i = 0;
real_argv[i++] = found_terminal;
if (term_arg)
real_argv[i++] = g_strdup (term_arg);
g_assert (i == term_argc);
for (int j = 0; j < *argc; j++)
real_argv[i++] = the_argv[j];
real_argv[i] = NULL;
g_free (*argv);
*argv = real_argv;
*argc = real_argc;
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_static (&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_static (&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);
}
static void
emit_launch_started (GAppLaunchContext *context,
GDesktopAppInfo *info,
const gchar *startup_id)
{
GVariantBuilder builder;
GVariant *platform_data = NULL;
if (startup_id)
{
g_variant_builder_init_static (&builder, G_VARIANT_TYPE_ARRAY);
g_variant_builder_add (&builder, "{sv}",
"startup-notification-id",
g_variant_new_string (startup_id));
platform_data = g_variant_ref_sink (g_variant_builder_end (&builder));
}
g_signal_emit_by_name (context, "launch-started", info, platform_data);
g_clear_pointer (&platform_data, g_variant_unref);
}
#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 = 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_environ_getenv (envp, "PATH"),
info->path))
{
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);
envp = g_environ_setenv (envp, "XDG_ACTIVATION_TOKEN", sn_id, TRUE);
}
}
g_list_free_full (launched_files, g_object_unref);
emit_launch_started (launch_context, info, sn_id);
}
g_assert (argc > 0);
if (!g_path_is_absolute (argv[0]) ||
!g_file_test (argv[0], G_FILE_TEST_IS_EXECUTABLE) ||
g_file_test (argv[0], G_FILE_TEST_IS_DIR))
{
char *program = g_steal_pointer (&argv[0]);
char *program_path = NULL;
if (!g_path_is_absolute (program))
{
const char *env_path = g_environ_getenv (envp, "PATH");
program_path = GLIB_PRIVATE_CALL (g_find_program_for_path) (program,
env_path,
info->path);
}
if (program_path)
{
argv[0] = g_steal_pointer (&program_path);
}
else
{
if (sn_id)
g_app_launch_context_launch_failed (launch_context, sn_id);
g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT,
_("Program ‘%s’ not found in $PATH"),
program);
g_free (program);
g_clear_pointer (&sn_id, g_free);
g_clear_list (&launched_uris, NULL);
goto out;
}
g_free (program);
}
if (g_once_init_enter_pointer (&gio_launch_desktop_path))
{
const gchar *tmp = NULL;
gboolean is_setuid = GLIB_PRIVATE_CALL (g_check_setuid) ();
/* Allow test suite to specify path to gio-launch-desktop */
if (!is_setuid)
tmp = g_getenv ("GIO_LAUNCH_DESKTOP");
/* Allow build system to specify path to gio-launch-desktop */
if (tmp == NULL && g_file_test (GIO_LAUNCH_DESKTOP, G_FILE_TEST_IS_EXECUTABLE))
tmp = GIO_LAUNCH_DESKTOP;
/* Fall back on usual searching in $PATH */
if (tmp == NULL)
tmp = "gio-launch-desktop";
g_once_init_leave_pointer (&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);
g_clear_pointer (&wrapped_argv, g_strfreev);
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_static (&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_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_static (&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_string (sn_id));
g_variant_builder_add (&builder, "{sv}", "activation-token", g_variant_new_take_string (g_steal_pointer (&sn_id)));
}
}
g_list_free_full (launched_files, g_object_unref);
}
return g_variant_builder_end (&builder);
}
typedef struct
{
GDesktopAppInfo *info; /* (owned) */
GAppLaunchContext *launch_context; /* (owned) (nullable) */
GAsyncReadyCallback callback;
gchar *startup_id; /* (owned) (nullable) */
gpointer user_data;
} LaunchUrisWithDBusData;
static void
launch_uris_with_dbus_data_free (LaunchUrisWithDBusData *data)
{
g_clear_object (&data->info);
g_clear_object (&data->launch_context);
g_free (data->startup_id);
g_free (data);
}
static void
launch_uris_with_dbus_signal_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
LaunchUrisWithDBusData *data = user_data;
GVariantBuilder builder;
if (data->launch_context)
{
if (g_task_had_error (G_TASK (result)))
{
if (data->startup_id != NULL)
g_app_launch_context_launch_failed (data->launch_context, data->startup_id);
}
else
{
GVariant *platform_data;
g_variant_builder_init_static (&builder, G_VARIANT_TYPE_ARRAY);
/* the docs guarantee `pid` will be set, but we can’t
* easily know it for a D-Bus process, so set it to zero */
g_variant_builder_add (&builder, "{sv}", "pid", g_variant_new_int32 (0));
if (data->startup_id)
g_variant_builder_add (&builder, "{sv}",
"startup-notification-id",
g_variant_new_string (data->startup_id));
platform_data = g_variant_ref_sink (g_variant_builder_end (&builder));
g_signal_emit_by_name (data->launch_context,
"launched",
data->info,
platform_data);
g_variant_unref (platform_data);
}
}
if (data->callback)
data->callback (object, result, data->user_data);
else if (!g_task_had_error (G_TASK (result)))
g_variant_unref (g_dbus_connection_call_finish (G_DBUS_CONNECTION (object),
result, NULL));
launch_uris_with_dbus_data_free (data);
}
static void
launch_uris_with_dbus (GDesktopAppInfo *info,
GDBusConnection *session_bus,
GList *uris,
GAppLaunchContext *launch_context,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GVariant *platform_data;
GVariantBuilder builder;
GVariantDict dict;
gchar *object_path;
LaunchUrisWithDBusData *data;
g_variant_builder_init_static (&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);
}
platform_data = g_desktop_app_info_make_platform_data (info, uris, launch_context);
g_variant_builder_add_value (&builder, platform_data);
object_path = object_path_from_appid (info->app_id);
data = g_new0 (LaunchUrisWithDBusData, 1);
data->info = g_object_ref (info);
data->callback = callback;
data->user_data = user_data;
data->launch_context = launch_context ? g_object_ref (launch_context) : NULL;
g_variant_dict_init (&dict, platform_data);
g_variant_dict_lookup (&dict, "desktop-startup-id", "s", &data->startup_id);
if (launch_context)
emit_launch_started (launch_context, info, data->startup_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,
cancellable, launch_uris_with_dbus_signal_cb, g_steal_pointer (&data));
g_free (object_path);
g_variant_dict_clear (&dict);
}
static gboolean
g_desktop_app_info_launch_uris_with_dbus (GDesktopAppInfo *info,
GDBusConnection *session_bus,
GList *uris,
GAppLaunchContext *launch_context,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
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,
cancellable, callback, user_data);
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)
/* 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...
*/
g_desktop_app_info_launch_uris_with_dbus (info, session_bus, uris, launch_context,
NULL, NULL, NULL);
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);
}
typedef struct
{
GList *uris; /* (element-type utf8) (owned) (nullable) */
GAppLaunchContext *context; /* (owned) (nullable) */
} LaunchUrisData;
static void
launch_uris_data_free (LaunchUrisData *data)
{
g_clear_object (&data->context);
g_list_free_full (data->uris, g_free);
g_free (data);
}
static void
launch_uris_with_dbus_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GTask *task = G_TASK (user_data);
GError *local_error = NULL;
GVariant *ret;
ret = g_dbus_connection_call_finish (G_DBUS_CONNECTION (object), result, &local_error);
if (local_error != NULL)
{
g_dbus_error_strip_remote_error (local_error);
g_task_return_error (task, g_steal_pointer (&local_error));
}
else
{
g_task_return_boolean (task, TRUE);
g_variant_unref (ret);
}
g_object_unref (task);
}
static void
launch_uris_flush_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GTask *task = G_TASK (user_data);
g_dbus_connection_flush_finish (G_DBUS_CONNECTION (object), result, NULL);
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
static void
launch_uris_bus_get_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GTask *task = G_TASK (user_data);
GDesktopAppInfo *info = G_DESKTOP_APP_INFO (g_task_get_source_object (task));
LaunchUrisData *data = g_task_get_task_data (task);
GCancellable *cancellable = g_task_get_cancellable (task);
GDBusConnection *session_bus;
GError *local_error = NULL;
session_bus = g_bus_get_finish (result, NULL);
if (session_bus && info->app_id)
{
/* FIXME: The g_document_portal_add_documents() function, which is called
* from the g_desktop_app_info_launch_uris_with_dbus() function, still
* uses blocking calls.
*/
g_desktop_app_info_launch_uris_with_dbus (info, session_bus,
data->uris, data->context,
cancellable,
launch_uris_with_dbus_cb,
g_steal_pointer (&task));
}
else
{
/* FIXME: The D-Bus message from the notify_desktop_launch() function
* can be still lost even if flush is called later. See:
* https://gitlab.freedesktop.org/dbus/dbus/issues/72
*/
g_desktop_app_info_launch_uris_with_spawn (info, session_bus, info->exec,
data->uris, data->context,
_SPAWN_FLAGS_DEFAULT, NULL,
NULL, NULL, NULL, -1, -1, -1,
&local_error);
if (local_error != NULL)
{
g_task_return_error (task, g_steal_pointer (&local_error));
g_object_unref (task);
}
else if (session_bus)
g_dbus_connection_flush (session_bus,
cancellable,
launch_uris_flush_cb,
g_steal_pointer (&task));
else
{
g_task_return_boolean (task, TRUE);
g_clear_object (&task);
}
}
g_clear_object (&session_bus);
}
static void
g_desktop_app_info_launch_uris_async (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *context,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
LaunchUrisData *data;
task = g_task_new (appinfo, cancellable, callback, user_data);
g_task_set_source_tag (task, g_desktop_app_info_launch_uris_async);
data = g_new0 (LaunchUrisData, 1);
data->uris = g_list_copy_deep (uris, (GCopyFunc) g_strdup, NULL);
g_set_object (&data->context, context);
g_task_set_task_data (task, g_steal_pointer (&data), (GDestroyNotify) launch_uris_data_free);
g_bus_get (G_BUS_TYPE_SESSION, cancellable, launch_uris_bus_get_cb, task);
}
static gboolean
g_desktop_app_info_launch_uris_finish (GAppInfo *appinfo,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (g_task_is_valid (result, appinfo), FALSE);
return g_task_propagate_boolean (G_TASK (result), 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 [class@Gio.DesktopAppInfo]
* @uris: (element-type utf8): List of URIs
* @launch_context: (nullable): a [class@Gio.AppLaunchContext]
* @spawn_flags: [flags@GLib.SpawnFlags], used for each process
* @user_setup: (scope async) (nullable) (closure user_setup_data): a
* [callback@GLib.SpawnChildSetupFunc], used once for each process.
* @user_setup_data: User data for @user_setup
* @pid_callback: (scope call) (nullable) (closure pid_callback_data): Callback for child processes
* @pid_callback_data: 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 [method@Gio.DesktopAppInfo.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 [class@Gio.DesktopAppInfo]
* @uris: (element-type utf8): List of URIs
* @launch_context: (nullable): a [class@Gio.AppLaunchContext]
* @spawn_flags: [flags@GLib.SpawnFlags], used for each process
* @user_setup: (scope async) (nullable): a [callback@GLib.SpawnChildSetupFunc],
* 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 [method@Gio.AppInfo.launch_uris],
* but is intended primarily for operating system components that
* launch applications. Ordinary applications should use
* [method@Gio.AppInfo.launch_uris].
*
* If the application is launched via GSpawn, then @spawn_flags, @user_setup
* and @user_setup_data are used for the call to [func@GLib.spawn_async].
* Additionally, @pid_callback (with @pid_callback_data) will be called to
* inform about the PID of the created process. See
* [func@GLib.spawn_async_with_pipes] for information on certain parameter
* conditions that can enable an optimized [`posix_spawn()`](man:posix_spawn(3))
* code path to be used.
*
* If application launching occurs via some other mechanism (for example, 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 [method@Gio.AppInfo.should_show] and
* [method@Gio.DesktopAppInfo.get_show_in] to evaluate the
* [`OnlyShowIn`](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-onlyshowin)
* and [`NotShowIn`](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html#key-notshowin)
* keys.
*
* 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 ();
}
g_debug ("%s: Ensuring %s", G_STRFUNC, path);
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);
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_full (filename, data, data_size,
G_FILE_SET_CONTENTS_CONSISTENT | G_FILE_SET_CONTENTS_ONLY_EXISTING,
0600, error);
desktop_file_dirs_invalidate_user_config ();
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_wait_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 *local_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,
&local_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", local_error->message);
g_error_free (local_error);
}
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_full (filename, contents, -1,
G_FILE_SET_CONTENTS_CONSISTENT | G_FILE_SET_CONTENTS_ONLY_EXISTING,
0600, 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;
}
/* Saving and deleting {{{2 */
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);
/* FIXME - actually handle error */
(void) g_close (fd, NULL);
res = g_file_set_contents_full (filename, data, data_size,
G_FILE_SET_CONTENTS_CONSISTENT | G_FILE_SET_CONTENTS_ONLY_EXISTING,
0600, 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");
/* We just dropped a file in the user's desktop file directory. Save
* the monitor the bother of having to notice it and invalidate
* immediately.
*
* This means that calls directly following this will be able to see
* the results immediately.
*/
desktop_file_dirs_invalidate_user_data ();
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;
}
/* Create for commandline {{{2 */
GAppInfo *
g_app_info_create_from_commandline_impl (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);
}
/* GAppInfo interface init */
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->launch_uris_async = g_desktop_app_info_launch_uris_async;
iface->launch_uris_finish = g_desktop_app_info_launch_uris_finish;
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;
}
/* Recommended applications {{{2 */
/* Converts content_type into a list of itself with all of its parent
* types (if include_fallback is enabled) or just returns a single-item
* list with the unaliased content type.
*/
static gchar **
get_list_of_mimetypes (const gchar *content_type,
gboolean include_fallback)
{
gchar *unaliased;
GPtrArray *array;
array = g_ptr_array_new ();
unaliased = _g_unix_content_type_unalias (content_type);
g_ptr_array_add (array, unaliased);
if (include_fallback)
{
guint i;
/* Iterate the array as we grow it, until we have nothing more to add */
for (i = 0; i < array->len; i++)
{
gchar **parents = _g_unix_content_type_get_parents (g_ptr_array_index (array, i));
gint j;
for (j = 0; parents[j]; j++)
/* Don't add duplicates */
if (!array_contains (array, parents[j]))
g_ptr_array_add (array, parents[j]);
else
g_free (parents[j]);
/* We already stole or freed each element. Free the container. */
g_free (parents);
}
}
g_ptr_array_add (array, NULL);
return (gchar **) g_ptr_array_free (array, FALSE);
}
static gchar **
g_desktop_app_info_get_desktop_ids_for_content_type (const gchar *content_type,
gboolean include_fallback)
{
GPtrArray *hits, *blocklist;
gchar **types;
guint i, j;
hits = g_ptr_array_new ();
blocklist = g_ptr_array_new ();
types = get_list_of_mimetypes (content_type, include_fallback);
desktop_file_dirs_lock ();
for (i = 0; types[i]; i++)
for (j = 0; j < desktop_file_dirs->len; j++)
desktop_file_dir_mime_lookup (g_ptr_array_index (desktop_file_dirs, j), types[i], hits, blocklist);
/* We will keep the hits past unlocking, so we must dup them */
for (i = 0; i < hits->len; i++)
hits->pdata[i] = g_strdup (hits->pdata[i]);
desktop_file_dirs_unlock ();
g_ptr_array_add (hits, NULL);
g_ptr_array_free (blocklist, TRUE);
g_strfreev (types);
return (gchar **) g_ptr_array_free (hits, FALSE);
}
GList *
g_app_info_get_recommended_for_type_impl (const gchar *content_type)
{
gchar **desktop_ids;
GList *infos;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, FALSE);
infos = NULL;
for (i = 0; desktop_ids[i]; i++)
{
GDesktopAppInfo *info;
info = g_desktop_app_info_new (desktop_ids[i]);
if (info)
infos = g_list_prepend (infos, info);
}
g_strfreev (desktop_ids);
return g_list_reverse (infos);
}
GList *
g_app_info_get_fallback_for_type_impl (const gchar *content_type)
{
gchar **recommended_ids;
gchar **all_ids;
GList *infos;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
recommended_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, FALSE);
all_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, TRUE);
infos = NULL;
for (i = 0; all_ids[i]; i++)
{
GDesktopAppInfo *info;
gint j;
/* Don't return the ones on the recommended list */
for (j = 0; recommended_ids[j]; j++)
if (g_str_equal (all_ids[i], recommended_ids[j]))
break;
if (recommended_ids[j])
continue;
info = g_desktop_app_info_new (all_ids[i]);
if (info)
infos = g_list_prepend (infos, info);
}
g_strfreev (recommended_ids);
g_strfreev (all_ids);
return g_list_reverse (infos);
}
GList *
g_app_info_get_all_for_type_impl (const char *content_type)
{
gchar **desktop_ids;
GList *infos;
gint i;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_ids = g_desktop_app_info_get_desktop_ids_for_content_type (content_type, TRUE);
infos = NULL;
for (i = 0; desktop_ids[i]; i++)
{
GDesktopAppInfo *info;
info = g_desktop_app_info_new (desktop_ids[i]);
if (info)
infos = g_list_prepend (infos, info);
}
g_strfreev (desktop_ids);
return g_list_reverse (infos);
}
void
g_app_info_reset_type_associations_impl (const char *content_type)
{
update_mimeapps_list (NULL, content_type,
UPDATE_MIME_NONE,
NULL);
}
GAppInfo *
g_app_info_get_default_for_type_impl (const char *content_type,
gboolean must_support_uris)
{
GPtrArray *blocklist;
GPtrArray *results;
GAppInfo *info;
gchar **types;
guint i, j, k;
g_return_val_if_fail (content_type != NULL, NULL);
types = get_list_of_mimetypes (content_type, TRUE);
blocklist = g_ptr_array_new ();
results = g_ptr_array_new ();
info = NULL;
desktop_file_dirs_lock ();
for (i = 0; types[i]; i++)
{
/* Collect all the default apps for this type */
for (j = 0; j < desktop_file_dirs->len; j++)
desktop_file_dir_default_lookup (g_ptr_array_index (desktop_file_dirs, j), types[i], results);
/* Consider the associations as well... */
for (j = 0; j < desktop_file_dirs->len; j++)
desktop_file_dir_mime_lookup (g_ptr_array_index (desktop_file_dirs, j), types[i], results, blocklist);
/* (If any), see if one of those apps is installed... */
for (j = 0; j < results->len; j++)
{
const gchar *desktop_id = g_ptr_array_index (results, j);
for (k = 0; k < desktop_file_dirs->len; k++)
{
info = (GAppInfo *) desktop_file_dir_get_app (g_ptr_array_index (desktop_file_dirs, k), desktop_id);
if (info)
{
if (!must_support_uris || g_app_info_supports_uris (info))
goto out;
g_clear_object (&info);
}
}
}
/* Reset the list, ready to try again with the next (parent)
* mimetype, but keep the blocklist in place.
*/
g_ptr_array_set_size (results, 0);
}
out:
desktop_file_dirs_unlock ();
g_ptr_array_unref (blocklist);
g_ptr_array_unref (results);
g_strfreev (types);
return info;
}
GAppInfo *
g_app_info_get_default_for_uri_scheme_impl (const char *uri_scheme)
{
GAppInfo *app_info;
char *content_type, *scheme_down;
g_return_val_if_fail (uri_scheme != NULL && *uri_scheme != '\0', NULL);
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;
}
/* "Get all" API {{{2 */
/**
* g_desktop_app_info_get_implementations:
* @interface: the name of the interface
*
* Gets all applications that implement @interface.
*
* An application implements an interface if that interface is listed in
* the `Implements` line of the desktop file of the application.
*
* Returns: (element-type GDesktopAppInfo) (transfer full): a list of
* [class@Gio.DesktopAppInfo] objects.
*
* Since: 2.42
**/
GList *
g_desktop_app_info_get_implementations (const gchar *interface)
{
GList *result = NULL;
GList **ptr;
guint i;
desktop_file_dirs_lock ();
for (i = 0; i < desktop_file_dirs->len; i++)
desktop_file_dir_get_implementations (g_ptr_array_index (desktop_file_dirs, i), &result, interface);
desktop_file_dirs_unlock ();
ptr = &result;
while (*ptr)
{
gchar *name = (*ptr)->data;
GDesktopAppInfo *app;
app = g_desktop_app_info_new (name);
g_free (name);
if (app)
{
(*ptr)->data = app;
ptr = &(*ptr)->next;
}
else
*ptr = g_list_delete_link (*ptr, *ptr);
}
return result;
}
/**
* g_desktop_app_info_search:
* @search_string: the search string to use
*
* Searches desktop files for ones that match @search_string.
*
* The return value is an array of strvs. Each strv contains a list of
* applications that matched @search_string with an equal score. The
* outer list is sorted by score so that the first strv contains the
* best-matching applications, and so on.
* The algorithm for determining matches is undefined and may change at
* any time.
*
* None of the search results are subjected to the normal validation
* checks performed by [ctor@Gio.DesktopAppInfo.new] (for example, checking that
* the executable referenced by a result exists), and so it is possible for
* [ctor@Gio.DesktopAppInfo.new] to return `NULL` when passed an app ID returned
* by this function. It is expected that calling code will do this when
* subsequently creating a [class@Gio.DesktopAppInfo] for each result.
*
* Returns: (array zero-terminated=1) (element-type GStrv) (transfer full): a
* list of strvs. Free each item with [func@GLib.strfreev] and free the outer
* list with [func@GLib.free].
*/
gchar ***
g_desktop_app_info_search (const gchar *search_string)
{
gchar **search_tokens;
gint last_category = -1;
gint last_match_type = -1;
gchar ***results;
gint n_groups = 0;
gint start_of_group;
gint i, j;
guint k;
search_tokens = g_str_tokenize_and_fold (search_string, NULL, NULL);
desktop_file_dirs_lock ();
reset_total_search_results ();
for (k = 0; k < desktop_file_dirs->len; k++)
{
for (j = 0; search_tokens[j]; j++)
{
desktop_file_dir_search (g_ptr_array_index (desktop_file_dirs, k), search_tokens[j]);
merge_token_results (j == 0);
}
merge_directory_results ();
}
sort_total_search_results ();
/* Count the total number of unique categories and match types */
for (i = 0; i < static_total_results_size; i++)
if (static_total_results[i].category != last_category ||
static_total_results[i].match_type != last_match_type)
{
last_category = static_total_results[i].category;
last_match_type = static_total_results[i].match_type;
n_groups++;
}
results = g_new (gchar **, n_groups + 1);
/* Start loading into the results list */
start_of_group = 0;
for (i = 0; i < n_groups; i++)
{
gint n_items_in_group = 0;
gint this_category;
gint this_match_type;
gint j;
this_category = static_total_results[start_of_group].category;
this_match_type = static_total_results[start_of_group].match_type;
while (start_of_group + n_items_in_group < static_total_results_size &&
static_total_results[start_of_group + n_items_in_group].category == this_category &&
static_total_results[start_of_group + n_items_in_group].match_type == this_match_type)
n_items_in_group++;
results[i] = g_new (gchar *, n_items_in_group + 1);
for (j = 0; j < n_items_in_group; j++)
results[i][j] = g_strdup (static_total_results[start_of_group + j].app_name);
results[i][j] = NULL;
start_of_group += n_items_in_group;
}
results[i] = NULL;
desktop_file_dirs_unlock ();
g_strfreev (search_tokens);
return results;
}
GList *
g_app_info_get_all_impl (void)
{
GHashTable *apps;
GHashTableIter iter;
gpointer value;
guint i;
GList *infos;
apps = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
desktop_file_dirs_lock ();
for (i = 0; i < desktop_file_dirs->len; i++)
desktop_file_dir_get_all (g_ptr_array_index (desktop_file_dirs, i), apps);
desktop_file_dirs_unlock ();
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 infos;
}
/* GDesktopAppInfoLookup interface {{{2 */
/**
* GDesktopAppInfoLookup:
*
* #GDesktopAppInfoLookup is an opaque data structure and can only be accessed
* using the following functions.
*
* Deprecated: 2.28: The [iface@Gio.DesktopAppInfoLookup] interface is
* deprecated and unused by GIO.
**/
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)
{
}
/* "Get for mime type" APIs {{{2 */
/**
* g_desktop_app_info_lookup_get_default_for_uri_scheme:
* @lookup: a [iface@Gio.DesktopAppInfoLookup]
* @uri_scheme: a string containing a URI scheme.
*
* Gets the default application for launching applications
* using this URI scheme for a particular [iface@Gio.DesktopAppInfoLookup]
* implementation.
*
* The [iface@Gio.DesktopAppInfoLookup] interface and this function is used
* to implement [func@Gio.AppInfo.get_default_for_uri_scheme] backends
* in a GIO module. There is no reason for applications to use it
* directly. Applications should use
* [func@Gio.AppInfo.get_default_for_uri_scheme].
*
* Returns: (transfer full) (nullable): [iface@Gio.AppInfo] for given
* @uri_scheme or `NULL` on error.
*
* Deprecated: 2.28: The [iface@Gio.DesktopAppInfoLookup] 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
/* Misc getter APIs {{{2 */
/**
* g_desktop_app_info_get_startup_wm_class:
* @info: a [class@Gio.DesktopAppInfo] 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: (nullable) (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 [class@Gio.DesktopAppInfo]
* @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: (nullable): 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_locale_string:
* @info: a [class@Gio.DesktopAppInfo]
* @key: the key to look up
*
* Looks up a localized string value in the keyfile backing @info
* translated to the current locale.
*
* The @key is looked up in the `Desktop Entry` group.
*
* Returns: (nullable): a newly allocated string, or `NULL` if the key is not
* found
*
* Since: 2.56
*/
char *
g_desktop_app_info_get_locale_string (GDesktopAppInfo *info,
const char *key)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
g_return_val_if_fail (key != NULL && *key != '\0', NULL);
return g_key_file_get_locale_string (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP,
key, NULL, NULL);
}
/**
* g_desktop_app_info_get_boolean:
* @info: a [class@Gio.DesktopAppInfo]
* @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_get_string_list:
* @info: a [class@Gio.DesktopAppInfo]
* @key: the key to look up
* @length: (out) (optional): return location for the number of returned
* strings, or `NULL`
*
* Looks up a string list value in the keyfile backing @info.
*
* The @key is looked up in the `Desktop Entry` group.
*
* Returns: (array zero-terminated=1 length=length) (element-type utf8) (transfer full):
* a `NULL`-terminated string array or `NULL` if the specified
* key cannot be found. The array should be freed with [func@GLib.strfreev].
*
* Since: 2.60
*/
gchar **
g_desktop_app_info_get_string_list (GDesktopAppInfo *info,
const char *key,
gsize *length)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return g_key_file_get_string_list (info->keyfile,
G_KEY_FILE_DESKTOP_GROUP, key, length, NULL);
}
/**
* g_desktop_app_info_has_key:
* @info: a [class@Gio.DesktopAppInfo]
* @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: 2.36
*/
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);
}
/* Desktop actions support {{{2 */
/**
* g_desktop_app_info_list_actions:
* @info: a [class@Gio.DesktopAppInfo]
*
* Returns the list of
* [‘additional application actions’](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s11.html)
* supported on the desktop file, as per the desktop file specification.
*
* As per the specification, this is the list of actions that are
* explicitly listed in the `Actions` key of the `Desktop Entry` group.
*
* Returns: (array zero-terminated=1) (element-type utf8) (transfer none): a
* list of strings, always non-`NULL`
*
* Since: 2.38
**/
const gchar * const *
g_desktop_app_info_list_actions (GDesktopAppInfo *info)
{
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
return (const gchar **) info->actions;
}
static gboolean
app_info_has_action (GDesktopAppInfo *info,
const gchar *action_name)
{
gint i;
for (i = 0; info->actions[i]; i++)
if (g_str_equal (info->actions[i], action_name))
return TRUE;
return FALSE;
}
/**
* g_desktop_app_info_get_action_name:
* @info: a [class@Gio.DesktopAppInfo]
* @action_name: the name of the action as from
* [method@Gio.DesktopAppInfo.list_actions]
*
* Gets the user-visible display name of the
* [‘additional application actions’](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s11.html)
* specified by @action_name.
*
* This corresponds to the `Name` key within the keyfile group for the
* action.
*
* Returns: (transfer full): the locale-specific action name
*
* Since: 2.38
*/
gchar *
g_desktop_app_info_get_action_name (GDesktopAppInfo *info,
const gchar *action_name)
{
gchar *group_name;
gchar *result;
g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL);
g_return_val_if_fail (action_name != NULL, NULL);
g_return_val_if_fail (app_info_has_action (info, action_name), NULL);
group_name = g_strdup_printf ("Desktop Action %s", action_name);
result = g_key_file_get_locale_string (info->keyfile, group_name, "Name", NULL, NULL);
g_free (group_name);
/* The spec says that the Name field must be given.
*
* If it's not, let's follow the behaviour of our get_name()
* implementation above and never return %NULL.
*/
if (result == NULL)
result = g_strdup (_("Unnamed"));
return result;
}
/**
* g_desktop_app_info_launch_action:
* @info: a [class@Gio.DesktopAppInfo]
* @action_name: the name of the action as from
* [method@Gio.DesktopAppInfo.list_actions]
* @launch_context: (nullable): a [class@Gio.AppLaunchContext]
*
* Activates the named application action.
*
* You may only call this function on action names that were
* returned from [method@Gio.DesktopAppInfo.list_actions].
*
* Note that if the main entry of the desktop file indicates that the
* application supports startup notification, and @launch_context is
* non-`NULL`, then startup notification will be used when activating the
* action (and as such, invocation of the action on the receiving side
* must signal the end of startup notification when it is completed).
* This is the expected behaviour of applications declaring additional
* actions, as per the
* [desktop file specification](https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s11.html).
*
* As with [method@Gio.AppInfo.launch] there is no way to detect failures that
* occur while using this function.
*
* Since: 2.38
*/
void
g_desktop_app_info_launch_action (GDesktopAppInfo *info,
const gchar *action_name,
GAppLaunchContext *launch_context)
{
GDBusConnection *session_bus;
g_return_if_fail (G_IS_DESKTOP_APP_INFO (info));
g_return_if_fail (action_name != NULL);
g_return_if_fail (app_info_has_action (info, action_name));
session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
if (session_bus && info->app_id)
{
gchar *object_path;
object_path = object_path_from_appid (info->app_id);
g_dbus_connection_call (session_bus, info->app_id, object_path,
"org.freedesktop.Application", "ActivateAction",
g_variant_new ("(sav@a{sv})", action_name, NULL,
g_desktop_app_info_make_platform_data (info, NULL, launch_context)),
NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
g_free (object_path);
}
else
{
gchar *group_name;
gchar *exec_line;
group_name = g_strdup_printf ("Desktop Action %s", action_name);
exec_line = g_key_file_get_string (info->keyfile, group_name, "Exec", NULL);
g_free (group_name);
if (exec_line)
g_desktop_app_info_launch_uris_with_spawn (info, session_bus, exec_line, NULL, launch_context,
_SPAWN_FLAGS_DEFAULT, NULL, NULL, NULL, NULL,
-1, -1, -1, NULL);
g_free (exec_line);
}
if (session_bus != NULL)
{
g_dbus_connection_flush (session_bus, NULL, NULL, NULL);
g_object_unref (session_bus);
}
}
/* Epilogue {{{1 */
/* vim:set foldmethod=marker: */
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