/* GIO - GLib Input, Output and Streaming Library * * Copyright (C) 2006-2007 Red Hat, Inc. * Copyright © 2007 Ryan Lortie * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General * Public License along with this library; if not, see . * * Author: Alexander Larsson * Ryan Lortie */ /* Prelude {{{1 */ #include "config.h" #include #include #include #ifdef HAVE_CRT_EXTERNS_H #include #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 #include "glibintl.h" #include "giomodule-priv.h" #include "gappinfo.h" #include "gappinfoprivate.h" #include "glocalfilemonitor.h" #ifdef G_OS_UNIX #include "gdocumentportal.h" #endif /** * SECTION:gdesktopappinfo * @title: GDesktopAppInfo * @short_description: Application information from desktop files * @include: gio/gdesktopappinfo.h * * #GDesktopAppInfo is an implementation of #GAppInfo based on * desktop files. * * Note that `` belongs to the UNIX-specific * GIO interfaces, thus you have to use the `gio-unix-2.0.pc` pkg-config * file when using it. */ #define DEFAULT_APPLICATIONS_GROUP "Default Applications" #define ADDED_ASSOCIATIONS_GROUP "Added Associations" #define REMOVED_ASSOCIATIONS_GROUP "Removed Associations" #define MIME_CACHE_GROUP "MIME Cache" #define GENERIC_NAME_KEY "GenericName" #define FULL_NAME_KEY "X-GNOME-FullName" #define KEYWORDS_KEY "Keywords" #define STARTUP_WM_CLASS_KEY "StartupWMClass" enum { PROP_0, PROP_FILENAME }; static void g_desktop_app_info_iface_init (GAppInfoIface *iface); static gboolean g_desktop_app_info_ensure_saved (GDesktopAppInfo *info, GError **error); /** * GDesktopAppInfo: * * Information about an installed application from a desktop file. */ struct _GDesktopAppInfo { GObject parent_instance; char *desktop_id; char *filename; char *app_id; GKeyFile *keyfile; char *name; char *generic_name; char *fullname; char *comment; char *icon_name; GIcon *icon; char **keywords; char **only_show_in; char **not_show_in; char *try_exec; char *exec; char *binary; char *path; char *categories; char *startup_wm_class; char **mime_types; char **actions; guint nodisplay : 1; guint hidden : 1; guint terminal : 1; guint startup_notify : 1; guint no_fuse : 1; }; typedef enum { UPDATE_MIME_NONE = 1 << 0, UPDATE_MIME_SET_DEFAULT = 1 << 1, UPDATE_MIME_SET_NON_DEFAULT = 1 << 2, UPDATE_MIME_REMOVE = 1 << 3, UPDATE_MIME_SET_LAST_USED = 1 << 4, } UpdateMimeFlags; G_DEFINE_TYPE_WITH_CODE (GDesktopAppInfo, g_desktop_app_info, G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO, g_desktop_app_info_iface_init)) /* DesktopFileDir implementation {{{1 */ typedef struct { gchar *path; gchar *alternatively_watching; gboolean is_config; gboolean is_setup; GFileMonitor *monitor; GHashTable *app_names; GHashTable *mime_tweaks; GHashTable *memory_index; GHashTable *memory_implementations; } DesktopFileDir; static DesktopFileDir *desktop_file_dirs; static guint n_desktop_file_dirs; static const guint desktop_file_dir_user_config_index = 0; static guint desktop_file_dir_user_data_index; static GMutex desktop_file_dir_lock; static const gchar *gio_launch_desktop_path = NULL; /* Monitor 'changed' signal handler {{{2 */ static void desktop_file_dir_reset (DesktopFileDir *dir); /*< internal > * desktop_file_dir_get_alternative_dir: * @dir: a #DesktopFileDir * * Gets the "alternative" directory to monitor in case the path * doesn't exist. * * If the path exists this will return NULL, otherwise it will return a * parent directory of the path. * * This is used to avoid inotify on a non-existent directory (which * results in polling). * * See https://bugzilla.gnome.org/show_bug.cgi?id=522314 for more info. */ static gchar * desktop_file_dir_get_alternative_dir (DesktopFileDir *dir) { gchar *parent; /* If the directory itself exists then we need no alternative. */ if (g_access (dir->path, R_OK | X_OK) == 0) return NULL; /* Otherwise, try the parent directories until we find one. */ parent = g_path_get_dirname (dir->path); while (g_access (parent, R_OK | X_OK) != 0) { gchar *tmp = parent; parent = g_path_get_dirname (tmp); /* If somehow we get to '/' or '.' then just stop... */ if (g_str_equal (parent, tmp)) { g_free (tmp); break; } g_free (tmp); } return parent; } static void desktop_file_dir_changed (GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, gpointer user_data) { DesktopFileDir *dir = user_data; gboolean do_nothing = FALSE; /* We are not interested in receiving notifications forever just * because someone asked about one desktop file once. * * After we receive the first notification, reset the dir, destroying * the monitor. We will take this as a hint, next time that we are * asked, that we need to check if everything is up to date. * * If this is a notification for a parent directory (because the * desktop directory didn't exist) then we shouldn't fire the signal * unless something actually changed. */ g_mutex_lock (&desktop_file_dir_lock); if (dir->alternatively_watching) { gchar *alternative_dir; alternative_dir = desktop_file_dir_get_alternative_dir (dir); do_nothing = alternative_dir && g_str_equal (dir->alternatively_watching, alternative_dir); g_free (alternative_dir); } if (!do_nothing) desktop_file_dir_reset (dir); g_mutex_unlock (&desktop_file_dir_lock); /* Notify anyone else who may be interested */ if (!do_nothing) g_app_info_monitor_fire (); } /* Internal utility functions {{{2 */ /*< internal > * desktop_file_dir_app_name_is_masked: * @dir: a #DesktopFileDir * @app_name: an application ID * * Checks if @app_name is masked for @dir. * * An application is masked if a similarly-named desktop file exists in * a desktop file directory with higher precedence. Masked desktop * files should be ignored. */ static gboolean desktop_file_dir_app_name_is_masked (DesktopFileDir *dir, const gchar *app_name) { while (dir > desktop_file_dirs) { dir--; if (dir->app_names && g_hash_table_contains (dir->app_names, app_name)) return TRUE; } return FALSE; } static const gchar * const * get_lowercase_current_desktops (void) { static gchar **result; if (g_once_init_enter (&result)) { const gchar *envvar; gchar **tmp; envvar = g_getenv ("XDG_CURRENT_DESKTOP"); if (envvar) { gint i, j; tmp = g_strsplit (envvar, G_SEARCHPATH_SEPARATOR_S, 0); for (i = 0; tmp[i]; i++) for (j = 0; tmp[i][j]; j++) tmp[i][j] = g_ascii_tolower (tmp[i][j]); } else tmp = g_new0 (gchar *, 0 + 1); g_once_init_leave (&result, tmp); } return (const gchar **) result; } static const gchar * const * get_current_desktops (const gchar *value) { static gchar **result; if (g_once_init_enter (&result)) { gchar **tmp; if (!value) value = g_getenv ("XDG_CURRENT_DESKTOP"); if (!value) value = ""; tmp = g_strsplit (value, ":", 0); g_once_init_leave (&result, tmp); } return (const gchar **) result; } /*< internal > * add_to_table_if_appropriate: * @apps: a string to GDesktopAppInfo hash table * @app_name: the name of the application * @info: a #GDesktopAppInfo, or NULL * * If @info is non-%NULL and non-hidden, then add it to @apps, using * @app_name as a key. * * If @info is non-%NULL then this function will consume the passed-in * reference. */ static void add_to_table_if_appropriate (GHashTable *apps, const gchar *app_name, GDesktopAppInfo *info) { if (!info) return; if (info->hidden) { g_object_unref (info); return; } g_free (info->desktop_id); info->desktop_id = g_strdup (app_name); g_hash_table_insert (apps, g_strdup (info->desktop_id), info); } enum { DESKTOP_KEY_Comment, DESKTOP_KEY_Exec, DESKTOP_KEY_GenericName, DESKTOP_KEY_Keywords, DESKTOP_KEY_Name, DESKTOP_KEY_X_GNOME_FullName, N_DESKTOP_KEYS }; const gchar desktop_key_match_category[N_DESKTOP_KEYS] = { /* Note: lower numbers are a better match. * * In case we want two keys to match at the same level, we can just * use the same number for the two different keys. */ [DESKTOP_KEY_Name] = 1, [DESKTOP_KEY_Exec] = 2, [DESKTOP_KEY_Keywords] = 3, [DESKTOP_KEY_GenericName] = 4, [DESKTOP_KEY_X_GNOME_FullName] = 5, [DESKTOP_KEY_Comment] = 6 }; /* Common prefix commands to ignore from Exec= lines */ const char * const exec_key_match_blacklist[] = { "bash", "env", "flatpak", "gjs", "pkexec", "python", "python2", "python3", "sh", "wine", "wine64", NULL }; static gchar * desktop_key_get_name (guint key_id) { switch (key_id) { case DESKTOP_KEY_Comment: return "Comment"; case DESKTOP_KEY_Exec: return "Exec"; case DESKTOP_KEY_GenericName: return GENERIC_NAME_KEY; case DESKTOP_KEY_Keywords: return KEYWORDS_KEY; case DESKTOP_KEY_Name: return "Name"; case DESKTOP_KEY_X_GNOME_FullName: return FULL_NAME_KEY; default: g_assert_not_reached (); } } /* Search global state {{{2 * * We only ever search under a global lock, so we can use (and reuse) * some global data to reduce allocations made while searching. * * In short, we keep around arrays of results that we expand as needed * (and never shrink). * * static_token_results: this is where we append the results for each * token within a given desktop directory, as we handle it (which is * a union of all matches for this term) * * static_search_results: this is where we build the complete results * for a single directory (which is an intersection of the matches * found for each term) * * static_total_results: this is where we build the complete results * across all directories (which is a union of the matches found in * each directory) * * The app_names that enter these tables are always pointer-unique (in * the sense that string equality is the same as pointer equality). * This can be guaranteed for two reasons: * * - we mask appids so that a given appid will only ever appear within * the highest-precedence directory that contains it. We never * return search results from a lower-level directory if a desktop * file exists in a higher-level one. * * - within a given directory, the string is unique because it's the * key in the hashtable of all app_ids for that directory. * * We perform a merging of the results in merge_token_results(). This * works by ordering the two lists and moving through each of them (at * the same time) looking for common elements, rejecting uncommon ones. * "Order" here need not mean any particular thing, as long as it is * some order. Because of the uniqueness of our strings, we can use * pointer order. That's what's going on in compare_results() below. */ struct search_result { const gchar *app_name; gint category; }; static struct search_result *static_token_results; static gint static_token_results_size; static gint static_token_results_allocated; static struct search_result *static_search_results; static gint static_search_results_size; static gint static_search_results_allocated; static struct search_result *static_total_results; static gint static_total_results_size; static gint static_total_results_allocated; /* And some functions for performing nice operations against it */ static gint compare_results (gconstpointer a, gconstpointer b) { const struct search_result *ra = a; const struct search_result *rb = b; if (ra->app_name < rb->app_name) return -1; else if (ra->app_name > rb->app_name) return 1; else return ra->category - rb->category; } static gint compare_categories (gconstpointer a, gconstpointer b) { const struct search_result *ra = a; const struct search_result *rb = b; return ra->category - rb->category; } static void add_token_result (const gchar *app_name, guint16 category) { if G_UNLIKELY (static_token_results_size == static_token_results_allocated) { static_token_results_allocated = MAX (16, static_token_results_allocated * 2); static_token_results = g_renew (struct search_result, static_token_results, static_token_results_allocated); } static_token_results[static_token_results_size].app_name = app_name; static_token_results[static_token_results_size].category = category; static_token_results_size++; } static void merge_token_results (gboolean first) { if (static_token_results_size != 0) qsort (static_token_results, static_token_results_size, sizeof (struct search_result), compare_results); /* If this is the first token then we are basically merging a list with * itself -- we only perform de-duplication. * * If this is not the first token then we are doing a real merge. */ if (first) { const gchar *last_name = NULL; gint i; /* We must de-duplicate, but we do so by taking the best category * in each case. * * The final list can be as large as the input here, so make sure * we have enough room (even if it's too much room). */ if G_UNLIKELY (static_search_results_allocated < static_token_results_size) { static_search_results_allocated = static_token_results_allocated; static_search_results = g_renew (struct search_result, static_search_results, static_search_results_allocated); } for (i = 0; i < static_token_results_size; i++) { /* The list is sorted so that the best match for a given id * will be at the front, so once we have copied an id, skip * the rest of the entries for the same id. */ if (static_token_results[i].app_name == last_name) continue; last_name = static_token_results[i].app_name; static_search_results[static_search_results_size++] = static_token_results[i]; } } else { const gchar *last_name = NULL; gint i, j = 0; gint k = 0; /* We only ever remove items from the results list, so no need to * resize to ensure that we have enough room. */ for (i = 0; i < static_token_results_size; i++) { if (static_token_results[i].app_name == last_name) continue; last_name = static_token_results[i].app_name; /* Now we only want to have a result in static_search_results * if we already have it there *and* we have it in * static_token_results as well. The category will be the * lesser of the two. * * Skip past the results in static_search_results that are not * going to be matches. */ while (k < static_search_results_size && static_search_results[k].app_name < static_token_results[i].app_name) k++; if (k < static_search_results_size && static_search_results[k].app_name == static_token_results[i].app_name) { /* We have a match. * * Category should be the worse of the two (ie: * numerically larger). */ static_search_results[j].app_name = static_search_results[k].app_name; static_search_results[j].category = MAX (static_search_results[k].category, static_token_results[i].category); j++; } } static_search_results_size = j; } /* Clear it out for next time... */ static_token_results_size = 0; } static void reset_total_search_results (void) { static_total_results_size = 0; } static void sort_total_search_results (void) { if (static_total_results_size != 0) qsort (static_total_results, static_total_results_size, sizeof (struct search_result), compare_categories); } static void merge_directory_results (void) { if G_UNLIKELY (static_total_results_size + static_search_results_size > static_total_results_allocated) { static_total_results_allocated = MAX (16, static_total_results_allocated); while (static_total_results_allocated < static_total_results_size + static_search_results_size) static_total_results_allocated *= 2; static_total_results = g_renew (struct search_result, static_total_results, static_total_results_allocated); } if (static_total_results + static_total_results_size != 0) memcpy (static_total_results + static_total_results_size, static_search_results, static_search_results_size * sizeof (struct search_result)); static_total_results_size += static_search_results_size; /* Clear it out for next time... */ static_search_results_size = 0; } /* Support for unindexed DesktopFileDirs {{{2 */ static void get_apps_from_dir (GHashTable **apps, const char *dirname, const char *prefix) { const char *basename; GDir *dir; dir = g_dir_open (dirname, 0, NULL); if (dir == NULL) return; while ((basename = g_dir_read_name (dir)) != NULL) { gchar *filename; filename = g_build_filename (dirname, basename, NULL); if (g_str_has_suffix (basename, ".desktop")) { gchar *app_name; app_name = g_strconcat (prefix, basename, NULL); if (*apps == NULL) *apps = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free); g_hash_table_insert (*apps, app_name, g_strdup (filename)); } else if (g_file_test (filename, G_FILE_TEST_IS_DIR)) { gchar *subprefix; subprefix = g_strconcat (prefix, basename, "-", NULL); get_apps_from_dir (apps, filename, subprefix); g_free (subprefix); } g_free (filename); } g_dir_close (dir); } typedef struct { gchar **additions; gchar **removals; gchar **defaults; } UnindexedMimeTweaks; static void free_mime_tweaks (gpointer data) { UnindexedMimeTweaks *tweaks = data; g_strfreev (tweaks->additions); g_strfreev (tweaks->removals); g_strfreev (tweaks->defaults); g_slice_free (UnindexedMimeTweaks, tweaks); } static UnindexedMimeTweaks * desktop_file_dir_unindexed_get_tweaks (DesktopFileDir *dir, const gchar *mime_type) { UnindexedMimeTweaks *tweaks; gchar *unaliased_type; unaliased_type = _g_unix_content_type_unalias (mime_type); tweaks = g_hash_table_lookup (dir->mime_tweaks, unaliased_type); if (tweaks == NULL) { tweaks = g_slice_new0 (UnindexedMimeTweaks); g_hash_table_insert (dir->mime_tweaks, unaliased_type, tweaks); } else g_free (unaliased_type); return tweaks; } /* consumes 'to_add' */ static void expand_strv (gchar ***strv_ptr, gchar **to_add, gchar * const *blacklist) { guint strv_len, add_len; gchar **strv; guint i, j; if (!*strv_ptr) { *strv_ptr = to_add; return; } strv = *strv_ptr; strv_len = g_strv_length (strv); add_len = g_strv_length (to_add); strv = g_renew (gchar *, strv, strv_len + add_len + 1); for (i = 0; to_add[i]; i++) { /* Don't add blacklisted strings */ if (blacklist) for (j = 0; blacklist[j]; j++) if (g_str_equal (to_add[i], blacklist[j])) goto no_add; /* Don't add duplicates already in the list */ for (j = 0; j < strv_len; j++) if (g_str_equal (to_add[i], strv[j])) goto no_add; strv[strv_len++] = to_add[i]; continue; no_add: g_free (to_add[i]); } strv[strv_len] = NULL; *strv_ptr = strv; g_free (to_add); } static void desktop_file_dir_unindexed_read_mimeapps_list (DesktopFileDir *dir, const gchar *filename, const gchar *added_group, gboolean tweaks_permitted) { UnindexedMimeTweaks *tweaks; char **desktop_file_ids; GKeyFile *key_file; gchar **mime_types; int i; key_file = g_key_file_new (); if (!g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL)) { g_key_file_free (key_file); return; } mime_types = g_key_file_get_keys (key_file, added_group, NULL, NULL); if G_UNLIKELY (mime_types != NULL && !tweaks_permitted) { g_warning ("%s contains a [%s] group, but it is not permitted here. Only the non-desktop-specific " "mimeapps.list file may add or remove associations.", filename, added_group); g_strfreev (mime_types); mime_types = NULL; } if (mime_types != NULL) { for (i = 0; mime_types[i] != NULL; i++) { desktop_file_ids = g_key_file_get_string_list (key_file, added_group, mime_types[i], NULL, NULL); if (desktop_file_ids) { tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]); expand_strv (&tweaks->additions, desktop_file_ids, tweaks->removals); } } g_strfreev (mime_types); } mime_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL); if G_UNLIKELY (mime_types != NULL && !tweaks_permitted) { g_warning ("%s contains a [%s] group, but it is not permitted here. Only the non-desktop-specific " "mimeapps.list file may add or remove associations.", filename, REMOVED_ASSOCIATIONS_GROUP); g_strfreev (mime_types); mime_types = NULL; } if (mime_types != NULL) { for (i = 0; mime_types[i] != NULL; i++) { desktop_file_ids = g_key_file_get_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP, mime_types[i], NULL, NULL); if (desktop_file_ids) { tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]); expand_strv (&tweaks->removals, desktop_file_ids, tweaks->additions); } } g_strfreev (mime_types); } mime_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP, NULL, NULL); if (mime_types != NULL) { for (i = 0; mime_types[i] != NULL; i++) { desktop_file_ids = g_key_file_get_string_list (key_file, DEFAULT_APPLICATIONS_GROUP, mime_types[i], NULL, NULL); if (desktop_file_ids) { tweaks = desktop_file_dir_unindexed_get_tweaks (dir, mime_types[i]); expand_strv (&tweaks->defaults, desktop_file_ids, NULL); } } g_strfreev (mime_types); } g_key_file_free (key_file); } static void desktop_file_dir_unindexed_read_mimeapps_lists (DesktopFileDir *dir) { const gchar * const *desktops; gchar *filename; gint i; dir->mime_tweaks = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, free_mime_tweaks); /* We process in order of precedence, using a blacklisting approach to * avoid recording later instructions that conflict with ones we found * earlier. * * We first start with the XDG_CURRENT_DESKTOP files, in precedence * order. */ desktops = get_lowercase_current_desktops (); for (i = 0; desktops[i]; i++) { filename = g_strdup_printf ("%s/%s-mimeapps.list", dir->path, desktops[i]); desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, ADDED_ASSOCIATIONS_GROUP, FALSE); g_free (filename); } /* Next, the non-desktop-specific mimeapps.list */ filename = g_strdup_printf ("%s/mimeapps.list", dir->path); desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, ADDED_ASSOCIATIONS_GROUP, TRUE); g_free (filename); /* The remaining files are only checked for in directories that might * contain desktop files (ie: not the config dirs). */ if (dir->is_config) return; /* We have 'defaults.list' which was only ever understood by GLib. It * exists widely, but it has never been part of any spec and it should * be treated as deprecated. This will be removed in a future * version. */ filename = g_strdup_printf ("%s/defaults.list", dir->path); desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, ADDED_ASSOCIATIONS_GROUP, FALSE); g_free (filename); /* Finally, the mimeinfo.cache, which is just a cached copy of what we * would find in the MimeTypes= lines of all of the desktop files. */ filename = g_strdup_printf ("%s/mimeinfo.cache", dir->path); desktop_file_dir_unindexed_read_mimeapps_list (dir, filename, MIME_CACHE_GROUP, TRUE); g_free (filename); } static void desktop_file_dir_unindexed_init (DesktopFileDir *dir) { if (!dir->is_config) get_apps_from_dir (&dir->app_names, dir->path, ""); desktop_file_dir_unindexed_read_mimeapps_lists (dir); } static GDesktopAppInfo * desktop_file_dir_unindexed_get_app (DesktopFileDir *dir, const gchar *desktop_id) { const gchar *filename; filename = g_hash_table_lookup (dir->app_names, desktop_id); if (!filename) return NULL; return g_desktop_app_info_new_from_filename (filename); } static void desktop_file_dir_unindexed_get_all (DesktopFileDir *dir, GHashTable *apps) { GHashTableIter iter; gpointer app_name; gpointer filename; if (dir->app_names == NULL) return; g_hash_table_iter_init (&iter, dir->app_names); while (g_hash_table_iter_next (&iter, &app_name, &filename)) { if (desktop_file_dir_app_name_is_masked (dir, app_name)) continue; add_to_table_if_appropriate (apps, app_name, g_desktop_app_info_new_from_filename (filename)); } } typedef struct _MemoryIndexEntry MemoryIndexEntry; typedef GHashTable MemoryIndex; struct _MemoryIndexEntry { const gchar *app_name; /* pointer to the hashtable key */ gint match_category; MemoryIndexEntry *next; }; static void memory_index_entry_free (gpointer data) { MemoryIndexEntry *mie = data; while (mie) { MemoryIndexEntry *next = mie->next; g_slice_free (MemoryIndexEntry, mie); mie = next; } } static void memory_index_add_token (MemoryIndex *mi, const gchar *token, gint match_category, const gchar *app_name) { MemoryIndexEntry *mie, *first; mie = g_slice_new (MemoryIndexEntry); mie->app_name = app_name; mie->match_category = match_category; first = g_hash_table_lookup (mi, token); if (first) { mie->next = first->next; first->next = mie; } else { mie->next = NULL; g_hash_table_insert (mi, g_strdup (token), mie); } } static void memory_index_add_string (MemoryIndex *mi, const gchar *string, gint match_category, const gchar *app_name) { gchar **tokens, **alternates; gint i; tokens = g_str_tokenize_and_fold (string, NULL, &alternates); for (i = 0; tokens[i]; i++) memory_index_add_token (mi, tokens[i], match_category, app_name); for (i = 0; alternates[i]; i++) memory_index_add_token (mi, alternates[i], match_category, app_name); g_strfreev (alternates); g_strfreev (tokens); } static MemoryIndex * memory_index_new (void) { return g_hash_table_new_full (g_str_hash, g_str_equal, g_free, memory_index_entry_free); } static void desktop_file_dir_unindexed_setup_search (DesktopFileDir *dir) { GHashTableIter iter; gpointer app, path; dir->memory_index = memory_index_new (); dir->memory_implementations = memory_index_new (); /* Nothing to search? */ if (dir->app_names == NULL) return; g_hash_table_iter_init (&iter, dir->app_names); while (g_hash_table_iter_next (&iter, &app, &path)) { GKeyFile *key_file; if (desktop_file_dir_app_name_is_masked (dir, app)) continue; key_file = g_key_file_new (); if (g_key_file_load_from_file (key_file, path, G_KEY_FILE_NONE, NULL) && !g_key_file_get_boolean (key_file, "Desktop Entry", "Hidden", NULL)) { /* Index the interesting keys... */ gchar **implements; gint i; for (i = 0; i < G_N_ELEMENTS (desktop_key_match_category); i++) { const gchar *value; gchar *raw; if (!desktop_key_match_category[i]) continue; raw = g_key_file_get_locale_string (key_file, "Desktop Entry", desktop_key_get_name (i), NULL, NULL); value = raw; if (i == DESKTOP_KEY_Exec && raw != NULL) { /* Special handling: only match basename of first field */ gchar *space; gchar *slash; /* Remove extra arguments, if any */ space = raw + strcspn (raw, " \t\n"); /* IFS */ *space = '\0'; /* Skip the pathname, if any */ if ((slash = strrchr (raw, '/'))) value = slash + 1; /* Don't match on blacklisted binaries like interpreters */ if (g_strv_contains (exec_key_match_blacklist, value)) value = NULL; } if (value) memory_index_add_string (dir->memory_index, value, desktop_key_match_category[i], app); g_free (raw); } /* Make note of the Implements= line */ implements = g_key_file_get_string_list (key_file, "Desktop Entry", "Implements", NULL, NULL); for (i = 0; implements && implements[i]; i++) memory_index_add_token (dir->memory_implementations, implements[i], 0, app); g_strfreev (implements); } g_key_file_free (key_file); } } static void desktop_file_dir_unindexed_search (DesktopFileDir *dir, const gchar *search_token) { GHashTableIter iter; gpointer key, value; if (!dir->memory_index) desktop_file_dir_unindexed_setup_search (dir); g_hash_table_iter_init (&iter, dir->memory_index); while (g_hash_table_iter_next (&iter, &key, &value)) { MemoryIndexEntry *mie = value; if (!g_str_has_prefix (key, search_token)) continue; while (mie) { add_token_result (mie->app_name, mie->match_category); mie = mie->next; } } } static gboolean array_contains (GPtrArray *array, const gchar *str) { gint i; for (i = 0; i < array->len; i++) if (g_str_equal (array->pdata[i], str)) return TRUE; return FALSE; } static void desktop_file_dir_unindexed_mime_lookup (DesktopFileDir *dir, const gchar *mime_type, GPtrArray *hits, GPtrArray *blacklist) { UnindexedMimeTweaks *tweaks; gint i; tweaks = g_hash_table_lookup (dir->mime_tweaks, mime_type); if (!tweaks) return; if (tweaks->additions) { for (i = 0; tweaks->additions[i]; i++) { gchar *app_name = tweaks->additions[i]; if (!desktop_file_dir_app_name_is_masked (dir, app_name) && !array_contains (blacklist, app_name) && !array_contains (hits, app_name)) g_ptr_array_add (hits, app_name); } } if (tweaks->removals) { for (i = 0; tweaks->removals[i]; i++) { gchar *app_name = tweaks->removals[i]; if (!desktop_file_dir_app_name_is_masked (dir, app_name) && !array_contains (blacklist, app_name) && !array_contains (hits, app_name)) g_ptr_array_add (blacklist, app_name); } } } static void desktop_file_dir_unindexed_default_lookup (DesktopFileDir *dir, const gchar *mime_type, GPtrArray *results) { UnindexedMimeTweaks *tweaks; gint i; tweaks = g_hash_table_lookup (dir->mime_tweaks, mime_type); if (!tweaks || !tweaks->defaults) return; for (i = 0; tweaks->defaults[i]; i++) { gchar *app_name = tweaks->defaults[i]; if (!array_contains (results, app_name)) g_ptr_array_add (results, app_name); } } static void desktop_file_dir_unindexed_get_implementations (DesktopFileDir *dir, GList **results, const gchar *interface) { MemoryIndexEntry *mie; if (!dir->memory_index) desktop_file_dir_unindexed_setup_search (dir); for (mie = g_hash_table_lookup (dir->memory_implementations, interface); mie; mie = mie->next) *results = g_list_prepend (*results, g_strdup (mie->app_name)); } /* DesktopFileDir "API" {{{2 */ /*< internal > * desktop_file_dir_create: * @array: the #GArray to add a new item to * @data_dir: an XDG_DATA_DIR * * Creates a #DesktopFileDir for the corresponding @data_dir, adding it * to @array. */ static void desktop_file_dir_create (GArray *array, const gchar *data_dir) { DesktopFileDir dir = { 0, }; dir.path = g_build_filename (data_dir, "applications", NULL); g_array_append_val (array, dir); } /*< internal > * desktop_file_dir_create: * @array: the #GArray to add a new item to * @config_dir: an XDG_CONFIG_DIR * * Just the same as desktop_file_dir_create() except that it does not * add the "applications" directory. It also marks the directory as * config-only, which prevents us from attempting to find desktop files * here. */ static void desktop_file_dir_create_for_config (GArray *array, const gchar *config_dir) { DesktopFileDir dir = { 0, }; dir.path = g_strdup (config_dir); dir.is_config = TRUE; g_array_append_val (array, dir); } /*< internal > * desktop_file_dir_reset: * @dir: a #DesktopFileDir * * Cleans up @dir, releasing most resources that it was using. */ static void desktop_file_dir_reset (DesktopFileDir *dir) { if (dir->alternatively_watching) { g_free (dir->alternatively_watching); dir->alternatively_watching = NULL; } if (dir->monitor) { g_signal_handlers_disconnect_by_func (dir->monitor, desktop_file_dir_changed, dir); g_object_unref (dir->monitor); dir->monitor = NULL; } if (dir->app_names) { g_hash_table_unref (dir->app_names); dir->app_names = NULL; } if (dir->memory_index) { g_hash_table_unref (dir->memory_index); dir->memory_index = NULL; } if (dir->mime_tweaks) { g_hash_table_unref (dir->mime_tweaks); dir->mime_tweaks = NULL; } if (dir->memory_implementations) { g_hash_table_unref (dir->memory_implementations); dir->memory_implementations = NULL; } dir->is_setup = FALSE; } /*< internal > * desktop_file_dir_init: * @dir: a #DesktopFileDir * * Does initial setup for @dir * * You should only call this if @dir is not already setup. */ static void desktop_file_dir_init (DesktopFileDir *dir) { const gchar *watch_dir; g_assert (!dir->is_setup); g_assert (!dir->alternatively_watching); g_assert (!dir->monitor); dir->alternatively_watching = desktop_file_dir_get_alternative_dir (dir); watch_dir = dir->alternatively_watching ? dir->alternatively_watching : dir->path; /* There is a very thin race here if the watch_dir has been _removed_ * between when we checked for it and when we establish the watch. * Removes probably don't happen in usual operation, and even if it * does (and we catch the unlikely race), the only degradation is that * we will fall back to polling. */ dir->monitor = g_local_file_monitor_new_in_worker (watch_dir, TRUE, G_FILE_MONITOR_NONE, desktop_file_dir_changed, dir, NULL); desktop_file_dir_unindexed_init (dir); dir->is_setup = TRUE; } /*< internal > * desktop_file_dir_get_app: * @dir: a DesktopFileDir * @desktop_id: the desktop ID to load * * Creates the #GDesktopAppInfo for the given @desktop_id if it exists * within @dir, even if it is hidden. * * This function does not check if @desktop_id would be masked by a * directory with higher precedence. The caller must do so. */ static GDesktopAppInfo * desktop_file_dir_get_app (DesktopFileDir *dir, const gchar *desktop_id) { if (!dir->app_names) return NULL; return desktop_file_dir_unindexed_get_app (dir, desktop_id); } /*< internal > * desktop_file_dir_get_all: * @dir: a DesktopFileDir * @apps: a #GHashTable * * Loads all desktop files in @dir and adds them to @apps, careful to * ensure we don't add any files masked by a similarly-named file in a * higher-precedence directory. */ static void desktop_file_dir_get_all (DesktopFileDir *dir, GHashTable *apps) { desktop_file_dir_unindexed_get_all (dir, apps); } /*< internal > * desktop_file_dir_mime_lookup: * @dir: a #DesktopFileDir * @mime_type: the mime type to look up * @hits: the array to store the hits * @blacklist: the array to store the blacklist * * Does a lookup of a mimetype against one desktop file directory, * recording any hits and blacklisting and "Removed" associations (so * later directories don't record them as hits). * * The items added to @hits are duplicated, but the ones in @blacklist * are weak pointers. This facilitates simply freeing the blacklist * (which is only used for internal bookkeeping) but using the pdata of * @hits as the result of the operation. */ static void desktop_file_dir_mime_lookup (DesktopFileDir *dir, const gchar *mime_type, GPtrArray *hits, GPtrArray *blacklist) { desktop_file_dir_unindexed_mime_lookup (dir, mime_type, hits, blacklist); } /*< internal > * desktop_file_dir_default_lookup: * @dir: a #DesktopFileDir * @mime_type: the mime type to look up * @results: an array to store the results in * * Collects the "default" applications for a given mime type from @dir. */ static void desktop_file_dir_default_lookup (DesktopFileDir *dir, const gchar *mime_type, GPtrArray *results) { desktop_file_dir_unindexed_default_lookup (dir, mime_type, results); } /*< internal > * desktop_file_dir_search: * @dir: a #DesktopFileDir * @term: a normalised and casefolded search term * * Finds the names of applications in @dir that match @term. */ static void desktop_file_dir_search (DesktopFileDir *dir, const gchar *search_token) { desktop_file_dir_unindexed_search (dir, search_token); } static void desktop_file_dir_get_implementations (DesktopFileDir *dir, GList **results, const gchar *interface) { desktop_file_dir_unindexed_get_implementations (dir, results, interface); } /* Lock/unlock and global setup API {{{2 */ static void desktop_file_dirs_lock (void) { gint i; g_mutex_lock (&desktop_file_dir_lock); if (desktop_file_dirs == NULL) { const char * const *dirs; GArray *tmp; gint i; tmp = g_array_new (FALSE, FALSE, sizeof (DesktopFileDir)); /* First, the configs. Highest priority: the user's ~/.config */ desktop_file_dir_create_for_config (tmp, g_get_user_config_dir ()); /* Next, the system configs (/etc/xdg, and so on). */ dirs = g_get_system_config_dirs (); for (i = 0; dirs[i]; i++) desktop_file_dir_create_for_config (tmp, dirs[i]); /* Now the data. Highest priority: the user's ~/.local/share/applications */ desktop_file_dir_user_data_index = tmp->len; desktop_file_dir_create (tmp, g_get_user_data_dir ()); /* Following that, XDG_DATA_DIRS/applications, in order */ dirs = g_get_system_data_dirs (); for (i = 0; dirs[i]; i++) desktop_file_dir_create (tmp, dirs[i]); /* The list of directories will never change after this. */ desktop_file_dirs = (DesktopFileDir *) tmp->data; n_desktop_file_dirs = tmp->len; g_array_free (tmp, FALSE); } for (i = 0; i < n_desktop_file_dirs; i++) if (!desktop_file_dirs[i].is_setup) desktop_file_dir_init (&desktop_file_dirs[i]); } static void desktop_file_dirs_unlock (void) { g_mutex_unlock (&desktop_file_dir_lock); } static void desktop_file_dirs_invalidate_user_config (void) { g_mutex_lock (&desktop_file_dir_lock); if (n_desktop_file_dirs) desktop_file_dir_reset (&desktop_file_dirs[desktop_file_dir_user_config_index]); g_mutex_unlock (&desktop_file_dir_lock); } static void desktop_file_dirs_invalidate_user_data (void) { g_mutex_lock (&desktop_file_dir_lock); if (n_desktop_file_dirs) desktop_file_dir_reset (&desktop_file_dirs[desktop_file_dir_user_data_index]); g_mutex_unlock (&desktop_file_dir_lock); } /* GDesktopAppInfo implementation {{{1 */ /* GObject implementation {{{2 */ static void g_desktop_app_info_finalize (GObject *object) { GDesktopAppInfo *info; info = G_DESKTOP_APP_INFO (object); g_free (info->desktop_id); g_free (info->filename); if (info->keyfile) g_key_file_unref (info->keyfile); g_free (info->name); g_free (info->generic_name); g_free (info->fullname); g_free (info->comment); g_free (info->icon_name); if (info->icon) g_object_unref (info->icon); g_strfreev (info->keywords); g_strfreev (info->only_show_in); g_strfreev (info->not_show_in); g_free (info->try_exec); g_free (info->exec); g_free (info->binary); g_free (info->path); g_free (info->categories); g_free (info->startup_wm_class); g_strfreev (info->mime_types); g_free (info->app_id); g_strfreev (info->actions); G_OBJECT_CLASS (g_desktop_app_info_parent_class)->finalize (object); } static void g_desktop_app_info_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object); switch (prop_id) { case PROP_FILENAME: self->filename = g_value_dup_string (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void g_desktop_app_info_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GDesktopAppInfo *self = G_DESKTOP_APP_INFO (object); switch (prop_id) { case PROP_FILENAME: g_value_set_string (value, self->filename); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void g_desktop_app_info_class_init (GDesktopAppInfoClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); gobject_class->get_property = g_desktop_app_info_get_property; gobject_class->set_property = g_desktop_app_info_set_property; gobject_class->finalize = g_desktop_app_info_finalize; /** * GDesktopAppInfo:filename: * * The origin filename of this #GDesktopAppInfo */ g_object_class_install_property (gobject_class, PROP_FILENAME, g_param_spec_string ("filename", "Filename", "", NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); } static void g_desktop_app_info_init (GDesktopAppInfo *local) { } /* Construction... {{{2 */ /*< internal > * binary_from_exec: * @exec: an exec line * * Returns the first word in an exec line (ie: the binary name). * * If @exec is " progname --foo %F" then returns "progname". */ static char * binary_from_exec (const char *exec) { const char *p, *start; p = exec; while (*p == ' ') p++; start = p; while (*p != ' ' && *p != 0) p++; return g_strndup (start, p - start); } static gboolean g_desktop_app_info_load_from_keyfile (GDesktopAppInfo *info, GKeyFile *key_file) { char *start_group; char *type; char *try_exec; char *exec; gboolean bus_activatable; start_group = g_key_file_get_start_group (key_file); if (start_group == NULL || strcmp (start_group, G_KEY_FILE_DESKTOP_GROUP) != 0) { g_free (start_group); return FALSE; } g_free (start_group); type = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TYPE, NULL); if (type == NULL || strcmp (type, G_KEY_FILE_DESKTOP_TYPE_APPLICATION) != 0) { g_free (type); return FALSE; } g_free (type); try_exec = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TRY_EXEC, NULL); if (try_exec && try_exec[0] != '\0') { char *t; t = g_find_program_in_path (try_exec); if (t == NULL) { g_free (try_exec); return FALSE; } g_free (t); } exec = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_EXEC, NULL); if (exec && exec[0] != '\0') { gint argc; char **argv; if (!g_shell_parse_argv (exec, &argc, &argv, NULL)) { g_free (exec); g_free (try_exec); return FALSE; } else { char *t; t = g_find_program_in_path (argv[0]); g_strfreev (argv); if (t == NULL) { g_free (exec); g_free (try_exec); return FALSE; } g_free (t); } } info->name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NAME, NULL, NULL); info->generic_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, GENERIC_NAME_KEY, NULL, NULL); info->fullname = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, FULL_NAME_KEY, NULL, NULL); info->keywords = g_key_file_get_locale_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, KEYWORDS_KEY, NULL, NULL, NULL); info->comment = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_COMMENT, NULL, NULL); info->nodisplay = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, NULL) != FALSE; info->icon_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ICON, NULL, NULL); info->only_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ONLY_SHOW_IN, NULL, NULL); info->not_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NOT_SHOW_IN, NULL, NULL); info->try_exec = try_exec; info->exec = exec; info->path = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_PATH, NULL); info->terminal = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TERMINAL, NULL) != FALSE; info->startup_notify = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_STARTUP_NOTIFY, NULL) != FALSE; info->no_fuse = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, "X-GIO-NoFuse", NULL) != FALSE; info->hidden = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_HIDDEN, NULL) != FALSE; info->categories = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_CATEGORIES, NULL); info->startup_wm_class = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, STARTUP_WM_CLASS_KEY, NULL); info->mime_types = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_MIME_TYPE, NULL, NULL); bus_activatable = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_DBUS_ACTIVATABLE, NULL); info->actions = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ACTIONS, NULL, NULL); /* Remove the special-case: no Actions= key just means 0 extra actions */ if (info->actions == NULL) info->actions = g_new0 (gchar *, 0 + 1); info->icon = NULL; if (info->icon_name) { if (g_path_is_absolute (info->icon_name)) { GFile *file; file = g_file_new_for_path (info->icon_name); info->icon = g_file_icon_new (file); g_object_unref (file); } else { char *p; /* Work around a common mistake in desktop files */ if ((p = strrchr (info->icon_name, '.')) != NULL && (strcmp (p, ".png") == 0 || strcmp (p, ".xpm") == 0 || strcmp (p, ".svg") == 0)) *p = 0; info->icon = g_themed_icon_new (info->icon_name); } } if (info->exec) info->binary = binary_from_exec (info->exec); if (info->path && info->path[0] == '\0') { g_free (info->path); info->path = NULL; } /* Can only be DBusActivatable if we know the filename, which means * that this won't work for the load-from-keyfile case. */ if (bus_activatable && info->filename) { gchar *basename; gchar *last_dot; basename = g_path_get_basename (info->filename); last_dot = strrchr (basename, '.'); if (last_dot && g_str_equal (last_dot, ".desktop")) { *last_dot = '\0'; if (g_dbus_is_name (basename) && basename[0] != ':') info->app_id = g_strdup (basename); } g_free (basename); } info->keyfile = g_key_file_ref (key_file); return TRUE; } static gboolean g_desktop_app_info_load_file (GDesktopAppInfo *self) { GKeyFile *key_file; gboolean retval = FALSE; g_return_val_if_fail (self->filename != NULL, FALSE); self->desktop_id = g_path_get_basename (self->filename); key_file = g_key_file_new (); if (g_key_file_load_from_file (key_file, self->filename, G_KEY_FILE_NONE, NULL)) retval = g_desktop_app_info_load_from_keyfile (self, key_file); g_key_file_unref (key_file); return retval; } /** * g_desktop_app_info_new_from_keyfile: * @key_file: an opened #GKeyFile * * Creates a new #GDesktopAppInfo. * * Returns: (nullable): a new #GDesktopAppInfo or %NULL on error. * * Since: 2.18 **/ GDesktopAppInfo * g_desktop_app_info_new_from_keyfile (GKeyFile *key_file) { GDesktopAppInfo *info; info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL); info->filename = NULL; if (!g_desktop_app_info_load_from_keyfile (info, key_file)) { g_object_unref (info); return NULL; } return info; } /** * g_desktop_app_info_new_from_filename: * @filename: (type filename): the path of a desktop file, in the GLib * filename encoding * * Creates a new #GDesktopAppInfo. * * Returns: (nullable): a new #GDesktopAppInfo or %NULL on error. **/ GDesktopAppInfo * g_desktop_app_info_new_from_filename (const char *filename) { GDesktopAppInfo *info = NULL; info = g_object_new (G_TYPE_DESKTOP_APP_INFO, "filename", filename, NULL); if (!g_desktop_app_info_load_file (info)) { g_object_unref (info); return NULL; } return info; } /** * g_desktop_app_info_new: * @desktop_id: the desktop file id * * Creates a new #GDesktopAppInfo based on a desktop file id. * * A desktop file id is the basename of the desktop file, including the * .desktop extension. GIO is looking for a desktop file with this name * in the `applications` subdirectories of the XDG * data directories (i.e. the directories specified in the `XDG_DATA_HOME` * and `XDG_DATA_DIRS` environment variables). GIO also supports the * prefix-to-subdirectory mapping that is described in the * [Menu Spec](http://standards.freedesktop.org/menu-spec/latest/) * (i.e. a desktop id of kde-foo.desktop will match * `/usr/share/applications/kde/foo.desktop`). * * Returns: (nullable): a new #GDesktopAppInfo, or %NULL if no desktop * file with that id exists. */ GDesktopAppInfo * g_desktop_app_info_new (const char *desktop_id) { GDesktopAppInfo *appinfo = NULL; guint i; desktop_file_dirs_lock (); for (i = 0; i < n_desktop_file_dirs; i++) { appinfo = desktop_file_dir_get_app (&desktop_file_dirs[i], desktop_id); if (appinfo) break; } desktop_file_dirs_unlock (); if (appinfo == NULL) return NULL; g_free (appinfo->desktop_id); appinfo->desktop_id = g_strdup (desktop_id); if (g_desktop_app_info_get_is_hidden (appinfo)) { g_object_unref (appinfo); appinfo = NULL; } return appinfo; } static GAppInfo * g_desktop_app_info_dup (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); GDesktopAppInfo *new_info; new_info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL); new_info->filename = g_strdup (info->filename); new_info->desktop_id = g_strdup (info->desktop_id); if (info->keyfile) new_info->keyfile = g_key_file_ref (info->keyfile); new_info->name = g_strdup (info->name); new_info->generic_name = g_strdup (info->generic_name); new_info->fullname = g_strdup (info->fullname); new_info->keywords = g_strdupv (info->keywords); new_info->comment = g_strdup (info->comment); new_info->nodisplay = info->nodisplay; new_info->icon_name = g_strdup (info->icon_name); if (info->icon) new_info->icon = g_object_ref (info->icon); new_info->only_show_in = g_strdupv (info->only_show_in); new_info->not_show_in = g_strdupv (info->not_show_in); new_info->try_exec = g_strdup (info->try_exec); new_info->exec = g_strdup (info->exec); new_info->binary = g_strdup (info->binary); new_info->path = g_strdup (info->path); new_info->app_id = g_strdup (info->app_id); new_info->hidden = info->hidden; new_info->terminal = info->terminal; new_info->startup_notify = info->startup_notify; return G_APP_INFO (new_info); } /* GAppInfo interface implementation functions {{{2 */ static gboolean g_desktop_app_info_equal (GAppInfo *appinfo1, GAppInfo *appinfo2) { GDesktopAppInfo *info1 = G_DESKTOP_APP_INFO (appinfo1); GDesktopAppInfo *info2 = G_DESKTOP_APP_INFO (appinfo2); if (info1->desktop_id == NULL || info2->desktop_id == NULL) return info1 == info2; return strcmp (info1->desktop_id, info2->desktop_id) == 0; } static const char * g_desktop_app_info_get_id (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->desktop_id; } static const char * g_desktop_app_info_get_name (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (info->name == NULL) return _("Unnamed"); return info->name; } static const char * g_desktop_app_info_get_display_name (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (info->fullname == NULL) return g_desktop_app_info_get_name (appinfo); return info->fullname; } /** * g_desktop_app_info_get_is_hidden: * @info: a #GDesktopAppInfo. * * A desktop file is hidden if the Hidden key in it is * set to True. * * Returns: %TRUE if hidden, %FALSE otherwise. **/ gboolean g_desktop_app_info_get_is_hidden (GDesktopAppInfo *info) { return info->hidden; } /** * g_desktop_app_info_get_filename: * @info: a #GDesktopAppInfo * * When @info was created from a known filename, return it. In some * situations such as the #GDesktopAppInfo returned from * g_desktop_app_info_new_from_keyfile(), this function will return %NULL. * * Returns: (type filename): The full path to the file for @info, * or %NULL if not known. * Since: 2.24 */ const char * g_desktop_app_info_get_filename (GDesktopAppInfo *info) { return info->filename; } static const char * g_desktop_app_info_get_description (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->comment; } static const char * g_desktop_app_info_get_executable (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->binary; } static const char * g_desktop_app_info_get_commandline (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->exec; } static GIcon * g_desktop_app_info_get_icon (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->icon; } /** * g_desktop_app_info_get_categories: * @info: a #GDesktopAppInfo * * Gets the categories from the desktop file. * * Returns: The unparsed Categories key from the desktop file; * i.e. no attempt is made to split it by ';' or validate it. */ const char * g_desktop_app_info_get_categories (GDesktopAppInfo *info) { return info->categories; } /** * g_desktop_app_info_get_keywords: * @info: a #GDesktopAppInfo * * Gets the keywords from the desktop file. * * Returns: (transfer none): The value of the Keywords key * * Since: 2.32 */ const char * const * g_desktop_app_info_get_keywords (GDesktopAppInfo *info) { return (const char * const *)info->keywords; } /** * g_desktop_app_info_get_generic_name: * @info: a #GDesktopAppInfo * * Gets the generic name from the destkop file. * * Returns: The value of the GenericName key */ const char * g_desktop_app_info_get_generic_name (GDesktopAppInfo *info) { return info->generic_name; } /** * g_desktop_app_info_get_nodisplay: * @info: a #GDesktopAppInfo * * Gets the value of the NoDisplay key, which helps determine if the * application info should be shown in menus. See * #G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY and g_app_info_should_show(). * * Returns: The value of the NoDisplay key * * Since: 2.30 */ gboolean g_desktop_app_info_get_nodisplay (GDesktopAppInfo *info) { return info->nodisplay; } /** * g_desktop_app_info_get_show_in: * @info: a #GDesktopAppInfo * @desktop_env: (nullable): a string specifying a desktop name * * Checks if the application info should be shown in menus that list available * applications for a specific name of the desktop, based on the * `OnlyShowIn` and `NotShowIn` keys. * * @desktop_env should typically be given as %NULL, in which case the * `XDG_CURRENT_DESKTOP` environment variable is consulted. If you want * to override the default mechanism then you may specify @desktop_env, * but this is not recommended. * * Note that g_app_info_should_show() for @info will include this check (with * %NULL for @desktop_env) as well as additional checks. * * Returns: %TRUE if the @info should be shown in @desktop_env according to the * `OnlyShowIn` and `NotShowIn` keys, %FALSE * otherwise. * * Since: 2.30 */ gboolean g_desktop_app_info_get_show_in (GDesktopAppInfo *info, const gchar *desktop_env) { const gchar *specified_envs[] = { desktop_env, NULL }; const gchar * const *envs; gint i; g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE); if (desktop_env) envs = specified_envs; else envs = get_current_desktops (NULL); for (i = 0; envs[i]; i++) { gint j; if (info->only_show_in) for (j = 0; info->only_show_in[j]; j++) if (g_str_equal (info->only_show_in[j], envs[i])) return TRUE; if (info->not_show_in) for (j = 0; info->not_show_in[j]; j++) if (g_str_equal (info->not_show_in[j], envs[i])) return FALSE; } return info->only_show_in == NULL; } /* Launching... {{{2 */ static char * expand_macro_single (char macro, const char *uri) { GFile *file; char *result = NULL; char *path = NULL; char *name; file = g_file_new_for_uri (uri); switch (macro) { case 'u': case 'U': result = g_shell_quote (uri); break; case 'f': case 'F': path = g_file_get_path (file); if (path) result = g_shell_quote (path); break; case 'd': case 'D': path = g_file_get_path (file); if (path) { name = g_path_get_dirname (path); result = g_shell_quote (name); g_free (name); } break; case 'n': case 'N': path = g_file_get_path (file); if (path) { name = g_path_get_basename (path); result = g_shell_quote (name); g_free (name); } break; } g_object_unref (file); g_free (path); return result; } static char * expand_macro_uri (char macro, const char *uri, gboolean force_file_uri, char force_file_uri_macro) { char *expanded = NULL; g_return_val_if_fail (uri != NULL, NULL); if (!force_file_uri || /* Pass URI if it contains an anchor */ strchr (uri, '#') != NULL) { expanded = expand_macro_single (macro, uri); } else { expanded = expand_macro_single (force_file_uri_macro, uri); if (expanded == NULL) expanded = expand_macro_single (macro, uri); } return expanded; } static void expand_macro (char macro, GString *exec, GDesktopAppInfo *info, GList **uri_list) { GList *uris = *uri_list; char *expanded = NULL; gboolean force_file_uri; char force_file_uri_macro; const char *uri; g_return_if_fail (exec != NULL); /* On %u and %U, pass POSIX file path pointing to the URI via * the FUSE mount in ~/.gvfs. Note that if the FUSE daemon isn't * running or the URI doesn't have a POSIX file path via FUSE * we'll just pass the URI. */ force_file_uri_macro = macro; force_file_uri = FALSE; if (!info->no_fuse) { switch (macro) { case 'u': force_file_uri_macro = 'f'; force_file_uri = TRUE; break; case 'U': force_file_uri_macro = 'F'; force_file_uri = TRUE; break; default: break; } } switch (macro) { case 'u': case 'f': case 'd': case 'n': if (uris) { uri = uris->data; expanded = expand_macro_uri (macro, uri, force_file_uri, force_file_uri_macro); if (expanded) { g_string_append (exec, expanded); g_free (expanded); } uris = uris->next; } break; case 'U': case 'F': case 'D': case 'N': while (uris) { uri = uris->data; expanded = expand_macro_uri (macro, uri, force_file_uri, force_file_uri_macro); if (expanded) { g_string_append (exec, expanded); g_free (expanded); } uris = uris->next; if (uris != NULL && expanded) g_string_append_c (exec, ' '); } break; case 'i': if (info->icon_name) { g_string_append (exec, "--icon "); expanded = g_shell_quote (info->icon_name); g_string_append (exec, expanded); g_free (expanded); } break; case 'c': if (info->name) { expanded = g_shell_quote (info->name); g_string_append (exec, expanded); g_free (expanded); } break; case 'k': if (info->filename) { expanded = g_shell_quote (info->filename); g_string_append (exec, expanded); g_free (expanded); } break; case 'm': /* deprecated */ break; case '%': g_string_append_c (exec, '%'); break; } *uri_list = uris; } static gboolean expand_application_parameters (GDesktopAppInfo *info, const gchar *exec_line, GList **uris, int *argc, char ***argv, GError **error) { GList *uri_list = *uris; const char *p = exec_line; GString *expanded_exec; gboolean res; if (exec_line == NULL) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Desktop file didn’t specify Exec field")); return FALSE; } expanded_exec = g_string_new (NULL); while (*p) { if (p[0] == '%' && p[1] != '\0') { expand_macro (p[1], expanded_exec, info, uris); p++; } else g_string_append_c (expanded_exec, *p); p++; } /* No file substitutions */ if (uri_list == *uris && uri_list != NULL) { /* If there is no macro default to %f. This is also what KDE does */ g_string_append_c (expanded_exec, ' '); expand_macro ('f', expanded_exec, info, uris); } res = g_shell_parse_argv (expanded_exec->str, argc, argv, error); g_string_free (expanded_exec, TRUE); return res; } static gboolean prepend_terminal_to_vector (int *argc, char ***argv) { #ifndef G_OS_WIN32 char **real_argv; int real_argc; int i, j; char **term_argv = NULL; int term_argc = 0; char *check; char **the_argv; g_return_val_if_fail (argc != NULL, FALSE); g_return_val_if_fail (argv != NULL, FALSE); /* sanity */ if(*argv == NULL) *argc = 0; the_argv = *argv; /* compute size if not given */ if (*argc < 0) { for (i = 0; the_argv[i] != NULL; i++) ; *argc = i; } term_argc = 2; term_argv = g_new0 (char *, 3); check = g_find_program_in_path ("gnome-terminal"); if (check != NULL) { term_argv[0] = check; /* Note that gnome-terminal takes -x and * as -e in gnome-terminal is broken we use that. */ term_argv[1] = g_strdup ("-x"); } else { if (check == NULL) check = g_find_program_in_path ("nxterm"); if (check == NULL) check = g_find_program_in_path ("color-xterm"); if (check == NULL) check = g_find_program_in_path ("rxvt"); if (check == NULL) check = g_find_program_in_path ("dtterm"); if (check == NULL) { check = g_strdup ("xterm"); g_debug ("Couldn’t find a terminal: falling back to xterm"); } term_argv[0] = check; term_argv[1] = g_strdup ("-e"); } real_argc = term_argc + *argc; real_argv = g_new (char *, real_argc + 1); for (i = 0; i < term_argc; i++) real_argv[i] = term_argv[i]; for (j = 0; j < *argc; j++, i++) real_argv[i] = (char *)the_argv[j]; real_argv[i] = NULL; g_free (*argv); *argv = real_argv; *argc = real_argc; /* we use g_free here as we sucked all the inner strings * out from it into real_argv */ g_free (term_argv); return TRUE; #else return FALSE; #endif /* G_OS_WIN32 */ } static GList * create_files_for_uris (GList *uris) { GList *res; GList *iter; res = NULL; for (iter = uris; iter; iter = iter->next) { GFile *file = g_file_new_for_uri ((char *)iter->data); res = g_list_prepend (res, file); } return g_list_reverse (res); } static void notify_desktop_launch (GDBusConnection *session_bus, GDesktopAppInfo *info, long pid, const char *display, const char *sn_id, GList *uris) { GDBusMessage *msg; GVariantBuilder uri_variant; GVariantBuilder extras_variant; GList *iter; const char *desktop_file_id; const char *gio_desktop_file; if (session_bus == NULL) return; g_variant_builder_init (&uri_variant, G_VARIANT_TYPE ("as")); for (iter = uris; iter; iter = iter->next) g_variant_builder_add (&uri_variant, "s", iter->data); g_variant_builder_init (&extras_variant, G_VARIANT_TYPE ("a{sv}")); if (sn_id != NULL && g_utf8_validate (sn_id, -1, NULL)) g_variant_builder_add (&extras_variant, "{sv}", "startup-id", g_variant_new ("s", sn_id)); gio_desktop_file = g_getenv ("GIO_LAUNCHED_DESKTOP_FILE"); if (gio_desktop_file != NULL) g_variant_builder_add (&extras_variant, "{sv}", "origin-desktop-file", g_variant_new_bytestring (gio_desktop_file)); if (g_get_prgname () != NULL) g_variant_builder_add (&extras_variant, "{sv}", "origin-prgname", g_variant_new_bytestring (g_get_prgname ())); g_variant_builder_add (&extras_variant, "{sv}", "origin-pid", g_variant_new ("x", (gint64)getpid ())); if (info->filename) desktop_file_id = info->filename; else if (info->desktop_id) desktop_file_id = info->desktop_id; else desktop_file_id = ""; msg = g_dbus_message_new_signal ("/org/gtk/gio/DesktopAppInfo", "org.gtk.gio.DesktopAppInfo", "Launched"); g_dbus_message_set_body (msg, g_variant_new ("(@aysxasa{sv})", g_variant_new_bytestring (desktop_file_id), display ? display : "", (gint64)pid, &uri_variant, &extras_variant)); g_dbus_connection_send_message (session_bus, msg, 0, NULL, NULL); g_object_unref (msg); } #define _SPAWN_FLAGS_DEFAULT (G_SPAWN_SEARCH_PATH) static gboolean g_desktop_app_info_launch_uris_with_spawn (GDesktopAppInfo *info, GDBusConnection *session_bus, const gchar *exec_line, GList *uris, GAppLaunchContext *launch_context, GSpawnFlags spawn_flags, GSpawnChildSetupFunc user_setup, gpointer user_setup_data, GDesktopAppLaunchCallback pid_callback, gpointer pid_callback_data, gint stdin_fd, gint stdout_fd, gint stderr_fd, GError **error) { gboolean completed = FALSE; GList *old_uris; GList *dup_uris; char **argv, **envp; int argc; g_return_val_if_fail (info != NULL, FALSE); argv = NULL; if (launch_context) envp = g_app_launch_context_get_environment (launch_context); else envp = g_get_environ (); /* The GList* passed to expand_application_parameters() will be modified * internally by expand_macro(), so we need to pass a copy of it instead, * and also use that copy to control the exit condition of the loop below. */ dup_uris = g_list_copy (uris); do { GPid pid; GList *launched_uris; GList *iter; char *sn_id = NULL; char **wrapped_argv; int i; old_uris = dup_uris; if (!expand_application_parameters (info, exec_line, &dup_uris, &argc, &argv, error)) goto out; /* Get the subset of URIs we're launching with this process */ launched_uris = NULL; for (iter = old_uris; iter != NULL && iter != dup_uris; iter = iter->next) launched_uris = g_list_prepend (launched_uris, iter->data); launched_uris = g_list_reverse (launched_uris); if (info->terminal && !prepend_terminal_to_vector (&argc, &argv)) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Unable to find terminal required for application")); goto out; } if (info->filename) envp = g_environ_setenv (envp, "GIO_LAUNCHED_DESKTOP_FILE", info->filename, TRUE); sn_id = NULL; if (launch_context) { GList *launched_files = create_files_for_uris (launched_uris); if (info->startup_notify) { sn_id = g_app_launch_context_get_startup_notify_id (launch_context, G_APP_INFO (info), launched_files); if (sn_id) envp = g_environ_setenv (envp, "DESKTOP_STARTUP_ID", sn_id, TRUE); } g_list_free_full (launched_files, g_object_unref); } if (g_once_init_enter (&gio_launch_desktop_path)) { const gchar *tmp; /* Allow test suite to specify path to gio-launch-desktop */ tmp = g_getenv ("GIO_LAUNCH_DESKTOP"); /* Fall back on usual searching in $PATH */ if (tmp == NULL) tmp = "gio-launch-desktop"; g_once_init_leave (&gio_launch_desktop_path, tmp); } wrapped_argv = g_new (char *, argc + 2); wrapped_argv[0] = g_strdup (gio_launch_desktop_path); for (i = 0; i < argc; i++) wrapped_argv[i + 1] = g_steal_pointer (&argv[i]); wrapped_argv[i + 1] = NULL; g_free (argv); argv = NULL; if (!g_spawn_async_with_fds (info->path, wrapped_argv, envp, spawn_flags, user_setup, user_setup_data, &pid, stdin_fd, stdout_fd, stderr_fd, error)) { if (sn_id) g_app_launch_context_launch_failed (launch_context, sn_id); g_free (sn_id); g_list_free (launched_uris); goto out; } if (pid_callback != NULL) pid_callback (info, pid, pid_callback_data); if (launch_context != NULL) { GVariantBuilder builder; GVariant *platform_data; g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY); g_variant_builder_add (&builder, "{sv}", "pid", g_variant_new_int32 (pid)); if (sn_id) g_variant_builder_add (&builder, "{sv}", "startup-notification-id", g_variant_new_string (sn_id)); platform_data = g_variant_ref_sink (g_variant_builder_end (&builder)); g_signal_emit_by_name (launch_context, "launched", info, platform_data); g_variant_unref (platform_data); } notify_desktop_launch (session_bus, info, pid, NULL, sn_id, launched_uris); g_free (sn_id); g_list_free (launched_uris); g_strfreev (wrapped_argv); wrapped_argv = NULL; } while (dup_uris != NULL); completed = TRUE; out: g_list_free (dup_uris); g_strfreev (argv); g_strfreev (envp); return completed; } static gchar * object_path_from_appid (const gchar *appid) { gchar *appid_path, *iter; appid_path = g_strconcat ("/", appid, NULL); for (iter = appid_path; *iter; iter++) { if (*iter == '.') *iter = '/'; if (*iter == '-') *iter = '_'; } return appid_path; } static GVariant * g_desktop_app_info_make_platform_data (GDesktopAppInfo *info, GList *uris, GAppLaunchContext *launch_context) { GVariantBuilder builder; g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT); if (launch_context) { GList *launched_files = create_files_for_uris (uris); if (info->startup_notify) { gchar *sn_id; sn_id = g_app_launch_context_get_startup_notify_id (launch_context, G_APP_INFO (info), launched_files); if (sn_id) g_variant_builder_add (&builder, "{sv}", "desktop-startup-id", g_variant_new_take_string (sn_id)); } g_list_free_full (launched_files, g_object_unref); } return g_variant_builder_end (&builder); } static void launch_uris_with_dbus (GDesktopAppInfo *info, GDBusConnection *session_bus, GList *uris, GAppLaunchContext *launch_context) { GVariantBuilder builder; gchar *object_path; g_variant_builder_init (&builder, G_VARIANT_TYPE_TUPLE); if (uris) { GList *iter; g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY); for (iter = uris; iter; iter = iter->next) g_variant_builder_add (&builder, "s", iter->data); g_variant_builder_close (&builder); } g_variant_builder_add_value (&builder, g_desktop_app_info_make_platform_data (info, uris, launch_context)); /* This is non-blocking API. Similar to launching via fork()/exec() * we don't wait around to see if the program crashed during startup. * This is what startup-notification's job is... */ object_path = object_path_from_appid (info->app_id); g_dbus_connection_call (session_bus, info->app_id, object_path, "org.freedesktop.Application", uris ? "Open" : "Activate", g_variant_builder_end (&builder), NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); g_free (object_path); } static gboolean g_desktop_app_info_launch_uris_with_dbus (GDesktopAppInfo *info, GDBusConnection *session_bus, GList *uris, GAppLaunchContext *launch_context) { GList *ruris = uris; char *app_id = NULL; g_return_val_if_fail (info != NULL, FALSE); #ifdef G_OS_UNIX app_id = g_desktop_app_info_get_string (info, "X-Flatpak"); if (app_id && *app_id) { ruris = g_document_portal_add_documents (uris, app_id, NULL); if (ruris == NULL) ruris = uris; } #endif launch_uris_with_dbus (info, session_bus, ruris, launch_context); if (ruris != uris) g_list_free_full (ruris, g_free); g_free (app_id); return TRUE; } static gboolean g_desktop_app_info_launch_uris_internal (GAppInfo *appinfo, GList *uris, GAppLaunchContext *launch_context, GSpawnFlags spawn_flags, GSpawnChildSetupFunc user_setup, gpointer user_setup_data, GDesktopAppLaunchCallback pid_callback, gpointer pid_callback_data, gint stdin_fd, gint stdout_fd, gint stderr_fd, GError **error) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); GDBusConnection *session_bus; gboolean success = TRUE; session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL); if (session_bus && info->app_id) g_desktop_app_info_launch_uris_with_dbus (info, session_bus, uris, launch_context); else success = g_desktop_app_info_launch_uris_with_spawn (info, session_bus, info->exec, uris, launch_context, spawn_flags, user_setup, user_setup_data, pid_callback, pid_callback_data, stdin_fd, stdout_fd, stderr_fd, error); if (session_bus != NULL) { /* This asynchronous flush holds a reference until it completes, * which ensures that the following unref won't immediately kill * the connection if we were the initial owner. */ g_dbus_connection_flush (session_bus, NULL, NULL, NULL); g_object_unref (session_bus); } return success; } static gboolean g_desktop_app_info_launch_uris (GAppInfo *appinfo, GList *uris, GAppLaunchContext *launch_context, GError **error) { return g_desktop_app_info_launch_uris_internal (appinfo, uris, launch_context, _SPAWN_FLAGS_DEFAULT, NULL, NULL, NULL, NULL, -1, -1, -1, error); } static gboolean g_desktop_app_info_supports_uris (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->exec && ((strstr (info->exec, "%u") != NULL) || (strstr (info->exec, "%U") != NULL)); } static gboolean g_desktop_app_info_supports_files (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->exec && ((strstr (info->exec, "%f") != NULL) || (strstr (info->exec, "%F") != NULL)); } static gboolean g_desktop_app_info_launch (GAppInfo *appinfo, GList *files, GAppLaunchContext *launch_context, GError **error) { GList *uris; char *uri; gboolean res; uris = NULL; while (files) { uri = g_file_get_uri (files->data); uris = g_list_prepend (uris, uri); files = files->next; } uris = g_list_reverse (uris); res = g_desktop_app_info_launch_uris (appinfo, uris, launch_context, error); g_list_free_full (uris, g_free); return res; } /** * g_desktop_app_info_launch_uris_as_manager_with_fds: * @appinfo: a #GDesktopAppInfo * @uris: (element-type utf8): List of URIs * @launch_context: (nullable): a #GAppLaunchContext * @spawn_flags: #GSpawnFlags, used for each process * @user_setup: (scope async) (nullable): a #GSpawnChildSetupFunc, used once * for each process. * @user_setup_data: (closure user_setup) (nullable): User data for @user_setup * @pid_callback: (scope call) (nullable): Callback for child processes * @pid_callback_data: (closure pid_callback) (nullable): User data for @callback * @stdin_fd: file descriptor to use for child's stdin, or -1 * @stdout_fd: file descriptor to use for child's stdout, or -1 * @stderr_fd: file descriptor to use for child's stderr, or -1 * @error: return location for a #GError, or %NULL * * Equivalent to g_desktop_app_info_launch_uris_as_manager() but allows * you to pass in file descriptors for the stdin, stdout and stderr streams * of the launched process. * * If application launching occurs via some non-spawn mechanism (e.g. D-Bus * activation) then @stdin_fd, @stdout_fd and @stderr_fd are ignored. * * Returns: %TRUE on successful launch, %FALSE otherwise. * * Since: 2.58 */ gboolean g_desktop_app_info_launch_uris_as_manager_with_fds (GDesktopAppInfo *appinfo, GList *uris, GAppLaunchContext *launch_context, GSpawnFlags spawn_flags, GSpawnChildSetupFunc user_setup, gpointer user_setup_data, GDesktopAppLaunchCallback pid_callback, gpointer pid_callback_data, gint stdin_fd, gint stdout_fd, gint stderr_fd, GError **error) { return g_desktop_app_info_launch_uris_internal ((GAppInfo*)appinfo, uris, launch_context, spawn_flags, user_setup, user_setup_data, pid_callback, pid_callback_data, stdin_fd, stdout_fd, stderr_fd, error); } /** * g_desktop_app_info_launch_uris_as_manager: * @appinfo: a #GDesktopAppInfo * @uris: (element-type utf8): List of URIs * @launch_context: (nullable): a #GAppLaunchContext * @spawn_flags: #GSpawnFlags, used for each process * @user_setup: (scope async) (nullable): a #GSpawnChildSetupFunc, used once * for each process. * @user_setup_data: (closure user_setup) (nullable): User data for @user_setup * @pid_callback: (scope call) (nullable): Callback for child processes * @pid_callback_data: (closure pid_callback) (nullable): User data for @callback * @error: return location for a #GError, or %NULL * * This function performs the equivalent of g_app_info_launch_uris(), * but is intended primarily for operating system components that * launch applications. Ordinary applications should use * g_app_info_launch_uris(). * * If the application is launched via GSpawn, then @spawn_flags, @user_setup * and @user_setup_data are used for the call to g_spawn_async(). * Additionally, @pid_callback (with @pid_callback_data) will be called to * inform about the PID of the created process. See g_spawn_async_with_pipes() * for information on certain parameter conditions that can enable an * optimized posix_spawn() codepath to be used. * * If application launching occurs via some other mechanism (eg: D-Bus * activation) then @spawn_flags, @user_setup, @user_setup_data, * @pid_callback and @pid_callback_data are ignored. * * Returns: %TRUE on successful launch, %FALSE otherwise. */ gboolean g_desktop_app_info_launch_uris_as_manager (GDesktopAppInfo *appinfo, GList *uris, GAppLaunchContext *launch_context, GSpawnFlags spawn_flags, GSpawnChildSetupFunc user_setup, gpointer user_setup_data, GDesktopAppLaunchCallback pid_callback, gpointer pid_callback_data, GError **error) { return g_desktop_app_info_launch_uris_as_manager_with_fds (appinfo, uris, launch_context, spawn_flags, user_setup, user_setup_data, pid_callback, pid_callback_data, -1, -1, -1, error); } /* OnlyShowIn API support {{{2 */ /** * g_desktop_app_info_set_desktop_env: * @desktop_env: a string specifying what desktop this is * * Sets the name of the desktop that the application is running in. * This is used by g_app_info_should_show() and * g_desktop_app_info_get_show_in() to evaluate the * `OnlyShowIn` and `NotShowIn` * desktop entry fields. * * Should be called only once; subsequent calls are ignored. * * Deprecated:2.42:do not use this API. Since 2.42 the value of the * `XDG_CURRENT_DESKTOP` environment variable will be used. */ void g_desktop_app_info_set_desktop_env (const gchar *desktop_env) { get_current_desktops (desktop_env); } static gboolean g_desktop_app_info_should_show (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (info->nodisplay) return FALSE; return g_desktop_app_info_get_show_in (info, NULL); } /* mime types/default apps support {{{2 */ typedef enum { CONF_DIR, APP_DIR, MIMETYPE_DIR } DirType; static char * ensure_dir (DirType type, GError **error) { char *path, *display_name; int errsv; switch (type) { case CONF_DIR: path = g_build_filename (g_get_user_config_dir (), NULL); break; case APP_DIR: path = g_build_filename (g_get_user_data_dir (), "applications", NULL); break; case MIMETYPE_DIR: path = g_build_filename (g_get_user_data_dir (), "mime", "packages", NULL); break; default: g_assert_not_reached (); } errno = 0; if (g_mkdir_with_parents (path, 0700) == 0) return path; errsv = errno; display_name = g_filename_display_name (path); if (type == APP_DIR) g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv), _("Can’t create user application configuration folder %s: %s"), display_name, g_strerror (errsv)); else g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv), _("Can’t create user MIME configuration folder %s: %s"), display_name, g_strerror (errsv)); g_free (display_name); g_free (path); return NULL; } static gboolean update_mimeapps_list (const char *desktop_id, const char *content_type, UpdateMimeFlags flags, GError **error) { char *dirname, *filename, *string; GKeyFile *key_file; gboolean load_succeeded, res; char **old_list, **list; gsize length, data_size; char *data; int i, j, k; char **content_types; /* Don't add both at start and end */ g_assert (!((flags & UPDATE_MIME_SET_DEFAULT) && (flags & UPDATE_MIME_SET_NON_DEFAULT))); dirname = ensure_dir (CONF_DIR, error); if (!dirname) return FALSE; filename = g_build_filename (dirname, "mimeapps.list", NULL); g_free (dirname); key_file = g_key_file_new (); load_succeeded = g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL); if (!load_succeeded || (!g_key_file_has_group (key_file, ADDED_ASSOCIATIONS_GROUP) && !g_key_file_has_group (key_file, REMOVED_ASSOCIATIONS_GROUP) && !g_key_file_has_group (key_file, DEFAULT_APPLICATIONS_GROUP))) { g_key_file_free (key_file); key_file = g_key_file_new (); } if (content_type) { content_types = g_new (char *, 2); content_types[0] = g_strdup (content_type); content_types[1] = NULL; } else { content_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP, NULL, NULL); } for (k = 0; content_types && content_types[k]; k++) { /* set as default, if requested so */ string = g_key_file_get_string (key_file, DEFAULT_APPLICATIONS_GROUP, content_types[k], NULL); if (g_strcmp0 (string, desktop_id) != 0 && (flags & UPDATE_MIME_SET_DEFAULT)) { g_free (string); string = g_strdup (desktop_id); /* add in the non-default list too, if it's not already there */ flags |= UPDATE_MIME_SET_NON_DEFAULT; } if (string == NULL || desktop_id == NULL) g_key_file_remove_key (key_file, DEFAULT_APPLICATIONS_GROUP, content_types[k], NULL); else g_key_file_set_string (key_file, DEFAULT_APPLICATIONS_GROUP, content_types[k], string); g_free (string); } if (content_type) { /* reuse the list from above */ } else { g_strfreev (content_types); content_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP, NULL, NULL); } for (k = 0; content_types && content_types[k]; k++) { /* Add to the right place in the list */ length = 0; old_list = g_key_file_get_string_list (key_file, ADDED_ASSOCIATIONS_GROUP, content_types[k], &length, NULL); list = g_new (char *, 1 + length + 1); i = 0; /* if we're adding a last-used hint, just put the application in front of the list */ if (flags & UPDATE_MIME_SET_LAST_USED) { /* avoid adding this again as non-default later */ if (flags & UPDATE_MIME_SET_NON_DEFAULT) flags ^= UPDATE_MIME_SET_NON_DEFAULT; list[i++] = g_strdup (desktop_id); } if (old_list) { for (j = 0; old_list[j] != NULL; j++) { if (g_strcmp0 (old_list[j], desktop_id) != 0) { /* rewrite other entries if they're different from the new one */ list[i++] = g_strdup (old_list[j]); } else if (flags & UPDATE_MIME_SET_NON_DEFAULT) { /* we encountered an old entry which is equal to the one we're adding as non-default, * don't change its position in the list. */ flags ^= UPDATE_MIME_SET_NON_DEFAULT; list[i++] = g_strdup (old_list[j]); } } } /* add it at the end of the list */ if (flags & UPDATE_MIME_SET_NON_DEFAULT) list[i++] = g_strdup (desktop_id); list[i] = NULL; g_strfreev (old_list); if (list[0] == NULL || desktop_id == NULL) g_key_file_remove_key (key_file, ADDED_ASSOCIATIONS_GROUP, content_types[k], NULL); else g_key_file_set_string_list (key_file, ADDED_ASSOCIATIONS_GROUP, content_types[k], (const char * const *)list, i); g_strfreev (list); } if (content_type) { /* reuse the list from above */ } else { g_strfreev (content_types); content_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL); } for (k = 0; content_types && content_types[k]; k++) { /* Remove from removed associations group (unless remove) */ length = 0; old_list = g_key_file_get_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP, content_types[k], &length, NULL); list = g_new (char *, 1 + length + 1); i = 0; if (flags & UPDATE_MIME_REMOVE) list[i++] = g_strdup (desktop_id); if (old_list) { for (j = 0; old_list[j] != NULL; j++) { if (g_strcmp0 (old_list[j], desktop_id) != 0) list[i++] = g_strdup (old_list[j]); } } list[i] = NULL; g_strfreev (old_list); if (list[0] == NULL || desktop_id == NULL) g_key_file_remove_key (key_file, REMOVED_ASSOCIATIONS_GROUP, content_types[k], NULL); else g_key_file_set_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP, content_types[k], (const char * const *)list, i); g_strfreev (list); } g_strfreev (content_types); data = g_key_file_to_data (key_file, &data_size, error); g_key_file_free (key_file); res = g_file_set_contents (filename, data, data_size, error); 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_exit_status (status, NULL)) { /* Here we could clean out any caches in use */ } } static void run_update_command (char *command, char *subdir) { char *argv[3] = { NULL, NULL, NULL, }; GPid pid = 0; GError *error = NULL; argv[0] = command; argv[1] = g_build_filename (g_get_user_data_dir (), subdir, NULL); if (g_spawn_async ("/", argv, NULL, /* envp */ G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | G_SPAWN_STDERR_TO_DEV_NULL | G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, /* No setup function */ &pid, &error)) g_child_watch_add (pid, update_program_done, NULL); else { /* If we get an error at this point, it's quite likely the user doesn't * have an installed copy of either 'update-mime-database' or * 'update-desktop-database'. I don't think we want to popup an error * dialog at this point, so we just do a g_warning to give the user a * chance of debugging it. */ g_warning ("%s", error->message); g_error_free (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 ("\n" "\n" " \n" " %s document\n" " \n" " \n" "\n", mimetype, extension, extension); g_file_set_contents (filename, contents, -1, NULL); g_free (contents); run_update_command ("update-mime-database", "mime"); } g_free (filename); res = g_desktop_app_info_set_as_default_for_type (appinfo, mimetype, error); g_free (mimetype); return res; } static gboolean g_desktop_app_info_add_supports_type (GAppInfo *appinfo, const char *content_type, GError **error) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error)) return FALSE; return update_mimeapps_list (info->desktop_id, content_type, UPDATE_MIME_SET_NON_DEFAULT, error); } static gboolean g_desktop_app_info_can_remove_supports_type (GAppInfo *appinfo) { return TRUE; } static gboolean g_desktop_app_info_remove_supports_type (GAppInfo *appinfo, const char *content_type, GError **error) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (info), error)) return FALSE; return update_mimeapps_list (info->desktop_id, content_type, UPDATE_MIME_REMOVE, error); } static const char ** g_desktop_app_info_get_supported_types (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return (const char**) info->mime_types; } /* 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 (filename, data, data_size, error); g_free (data); if (!res) { g_free (desktop_id); g_free (filename); return FALSE; } info->filename = filename; info->desktop_id = desktop_id; run_update_command ("update-desktop-database", "applications"); /* 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 */ /** * g_app_info_create_from_commandline: * @commandline: (type filename): the commandline to use * @application_name: (nullable): the application name, or %NULL to use @commandline * @flags: flags that can specify details of the created #GAppInfo * @error: a #GError location to store the error occurring, %NULL to ignore. * * Creates a new #GAppInfo from the given information. * * Note that for @commandline, the quoting rules of the Exec key of the * [freedesktop.org Desktop Entry Specification](http://freedesktop.org/Standards/desktop-entry-spec) * are applied. For example, if the @commandline contains * percent-encoded URIs, the percent-character must be doubled in order to prevent it from * being swallowed by Exec key unquoting. See the specification for exact quoting rules. * * Returns: (transfer full): new #GAppInfo for given command. **/ GAppInfo * g_app_info_create_from_commandline (const char *commandline, const char *application_name, GAppInfoCreateFlags flags, GError **error) { char **split; char *basename; GDesktopAppInfo *info; g_return_val_if_fail (commandline, NULL); info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL); info->filename = NULL; info->desktop_id = NULL; info->terminal = (flags & G_APP_INFO_CREATE_NEEDS_TERMINAL) != 0; info->startup_notify = (flags & G_APP_INFO_CREATE_SUPPORTS_STARTUP_NOTIFICATION) != 0; info->hidden = FALSE; if ((flags & G_APP_INFO_CREATE_SUPPORTS_URIS) != 0) info->exec = g_strconcat (commandline, " %u", NULL); else info->exec = g_strconcat (commandline, " %f", NULL); info->nodisplay = TRUE; info->binary = binary_from_exec (info->exec); if (application_name) info->name = g_strdup (application_name); else { /* FIXME: this should be more robust. Maybe g_shell_parse_argv and use argv[0] */ split = g_strsplit (commandline, " ", 2); basename = split[0] ? g_path_get_basename (split[0]) : NULL; g_strfreev (split); info->name = basename; if (info->name == NULL) info->name = g_strdup ("custom"); } info->comment = g_strdup_printf (_("Custom definition for %s"), info->name); return G_APP_INFO (info); } /* 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->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) { gint 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, *blacklist; gchar **types; gint i, j; hits = g_ptr_array_new (); blacklist = 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 < n_desktop_file_dirs; j++) desktop_file_dir_mime_lookup (&desktop_file_dirs[j], types[i], hits, blacklist); /* 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 (blacklist, TRUE); g_strfreev (types); return (gchar **) g_ptr_array_free (hits, FALSE); } /** * g_app_info_get_recommended_for_type: * @content_type: the content type to find a #GAppInfo for * * Gets a list of recommended #GAppInfos for a given content type, i.e. * those applications which claim to support the given content type exactly, * and not by MIME type subclassing. * Note that the first application of the list is the last used one, i.e. * the last one for which g_app_info_set_as_last_used_for_type() has been * called. * * Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos * for given @content_type or %NULL on error. * * Since: 2.28 **/ GList * g_app_info_get_recommended_for_type (const gchar *content_type) { 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); } /** * g_app_info_get_fallback_for_type: * @content_type: the content type to find a #GAppInfo for * * Gets a list of fallback #GAppInfos for a given content type, i.e. * those applications which claim to support the given content type * by MIME type subclassing and not directly. * * Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos * for given @content_type or %NULL on error. * * Since: 2.28 **/ GList * g_app_info_get_fallback_for_type (const gchar *content_type) { 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); } /** * g_app_info_get_all_for_type: * @content_type: the content type to find a #GAppInfo for * * Gets a list of all #GAppInfos for a given content type, * including the recommended and fallback #GAppInfos. See * g_app_info_get_recommended_for_type() and * g_app_info_get_fallback_for_type(). * * Returns: (element-type GAppInfo) (transfer full): #GList of #GAppInfos * for given @content_type or %NULL on error. **/ GList * g_app_info_get_all_for_type (const char *content_type) { 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); } /** * g_app_info_reset_type_associations: * @content_type: a content type * * Removes all changes to the type associations done by * g_app_info_set_as_default_for_type(), * g_app_info_set_as_default_for_extension(), * g_app_info_add_supports_type() or * g_app_info_remove_supports_type(). * * Since: 2.20 */ void g_app_info_reset_type_associations (const char *content_type) { update_mimeapps_list (NULL, content_type, UPDATE_MIME_NONE, NULL); } /** * g_app_info_get_default_for_type: * @content_type: the content type to find a #GAppInfo for * @must_support_uris: if %TRUE, the #GAppInfo is expected to * support URIs * * Gets the default #GAppInfo for a given content type. * * Returns: (transfer full): #GAppInfo for given @content_type or * %NULL on error. */ GAppInfo * g_app_info_get_default_for_type (const char *content_type, gboolean must_support_uris) { GPtrArray *blacklist; GPtrArray *results; GAppInfo *info; gchar **types; gint i, j, k; g_return_val_if_fail (content_type != NULL, NULL); types = get_list_of_mimetypes (content_type, TRUE); blacklist = 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 < n_desktop_file_dirs; j++) desktop_file_dir_default_lookup (&desktop_file_dirs[j], types[i], results); /* Consider the associations as well... */ for (j = 0; j < n_desktop_file_dirs; j++) desktop_file_dir_mime_lookup (&desktop_file_dirs[j], types[i], results, blacklist); /* (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 < n_desktop_file_dirs; k++) { info = (GAppInfo *) desktop_file_dir_get_app (&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 blacklist in place. */ g_ptr_array_set_size (results, 0); } out: desktop_file_dirs_unlock (); g_ptr_array_unref (blacklist); g_ptr_array_unref (results); g_strfreev (types); return info; } /** * g_app_info_get_default_for_uri_scheme: * @uri_scheme: a string containing a URI scheme. * * Gets the default application for handling URIs with * the given URI scheme. A URI scheme is the initial part * of the URI, up to but not including the ':', e.g. "http", * "ftp" or "sip". * * Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error. */ GAppInfo * g_app_info_get_default_for_uri_scheme (const char *uri_scheme) { GAppInfo *app_info; char *content_type, *scheme_down; scheme_down = g_ascii_strdown (uri_scheme, -1); content_type = g_strdup_printf ("x-scheme-handler/%s", scheme_down); g_free (scheme_down); app_info = g_app_info_get_default_for_type (content_type, FALSE); g_free (content_type); return app_info; } /* "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 #GDesktopAppInfo * objects. * * Since: 2.42 **/ GList * g_desktop_app_info_get_implementations (const gchar *interface) { GList *result = NULL; GList **ptr; gint i; desktop_file_dirs_lock (); for (i = 0; i < n_desktop_file_dirs; i++) desktop_file_dir_get_implementations (&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. * * Returns: (array zero-terminated=1) (element-type GStrv) (transfer full): a * list of strvs. Free each item with g_strfreev() and free the outer * list with g_free(). */ gchar *** g_desktop_app_info_search (const gchar *search_string) { gchar **search_tokens; gint last_category = -1; gchar ***results; gint n_categories = 0; gint start_of_category; gint i, j; search_tokens = g_str_tokenize_and_fold (search_string, NULL, NULL); desktop_file_dirs_lock (); reset_total_search_results (); for (i = 0; i < n_desktop_file_dirs; i++) { for (j = 0; search_tokens[j]; j++) { desktop_file_dir_search (&desktop_file_dirs[i], search_tokens[j]); merge_token_results (j == 0); } merge_directory_results (); } sort_total_search_results (); /* Count the total number of unique categories */ for (i = 0; i < static_total_results_size; i++) if (static_total_results[i].category != last_category) { last_category = static_total_results[i].category; n_categories++; } results = g_new (gchar **, n_categories + 1); /* Start loading into the results list */ start_of_category = 0; for (i = 0; i < n_categories; i++) { gint n_items_in_category = 0; gint this_category; gint j; this_category = static_total_results[start_of_category].category; while (start_of_category + n_items_in_category < static_total_results_size && static_total_results[start_of_category + n_items_in_category].category == this_category) n_items_in_category++; results[i] = g_new (gchar *, n_items_in_category + 1); for (j = 0; j < n_items_in_category; j++) results[i][j] = g_strdup (static_total_results[start_of_category + j].app_name); results[i][j] = NULL; start_of_category += n_items_in_category; } results[i] = NULL; desktop_file_dirs_unlock (); g_strfreev (search_tokens); return results; } /** * g_app_info_get_all: * * Gets a list of all of the applications currently registered * on this system. * * For desktop files, this includes applications that have * `NoDisplay=true` set or are excluded from display by means * of `OnlyShowIn` or `NotShowIn`. See g_app_info_should_show(). * The returned list does not include applications which have * the `Hidden` key set. * * Returns: (element-type GAppInfo) (transfer full): a newly allocated #GList of references to #GAppInfos. **/ GList * g_app_info_get_all (void) { GHashTable *apps; GHashTableIter iter; gpointer value; int 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 < n_desktop_file_dirs; i++) desktop_file_dir_get_all (&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. **/ 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 #GDesktopAppInfoLookup * @uri_scheme: a string containing a URI scheme. * * Gets the default application for launching applications * using this URI scheme for a particular GDesktopAppInfoLookup * implementation. * * The GDesktopAppInfoLookup interface and this function is used * to implement g_app_info_get_default_for_uri_scheme() backends * in a GIO module. There is no reason for applications to use it * directly. Applications should use g_app_info_get_default_for_uri_scheme(). * * Returns: (transfer full): #GAppInfo for given @uri_scheme or %NULL on error. * * Deprecated: The #GDesktopAppInfoLookup interface is deprecated and unused by gio. */ GAppInfo * g_desktop_app_info_lookup_get_default_for_uri_scheme (GDesktopAppInfoLookup *lookup, const char *uri_scheme) { GDesktopAppInfoLookupIface *iface; g_return_val_if_fail (G_IS_DESKTOP_APP_INFO_LOOKUP (lookup), NULL); iface = G_DESKTOP_APP_INFO_LOOKUP_GET_IFACE (lookup); return (* iface->get_default_for_uri_scheme) (lookup, uri_scheme); } G_GNUC_END_IGNORE_DEPRECATIONS /* Misc getter APIs {{{2 */ /** * g_desktop_app_info_get_startup_wm_class: * @info: a #GDesktopAppInfo that supports startup notify * * Retrieves the StartupWMClass field from @info. This represents the * WM_CLASS property of the main window of the application, if launched * through @info. * * Returns: (transfer none): the startup WM class, or %NULL if none is set * in the desktop file. * * Since: 2.34 */ const char * g_desktop_app_info_get_startup_wm_class (GDesktopAppInfo *info) { g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL); return info->startup_wm_class; } /** * g_desktop_app_info_get_string: * @info: a #GDesktopAppInfo * @key: the key to look up * * Looks up a string value in the keyfile backing @info. * * The @key is looked up in the "Desktop Entry" group. * * Returns: a newly allocated string, or %NULL if the key * is not found * * Since: 2.36 */ char * g_desktop_app_info_get_string (GDesktopAppInfo *info, const char *key) { g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), NULL); return g_key_file_get_string (info->keyfile, G_KEY_FILE_DESKTOP_GROUP, key, NULL); } /** * g_desktop_app_info_get_locale_string: * @info: a #GDesktopAppInfo * @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 #GDesktopAppInfo * @key: the key to look up * * Looks up a boolean value in the keyfile backing @info. * * The @key is looked up in the "Desktop Entry" group. * * Returns: the boolean value, or %FALSE if the key * is not found * * Since: 2.36 */ gboolean g_desktop_app_info_get_boolean (GDesktopAppInfo *info, const char *key) { g_return_val_if_fail (G_IS_DESKTOP_APP_INFO (info), FALSE); return g_key_file_get_boolean (info->keyfile, G_KEY_FILE_DESKTOP_GROUP, key, NULL); } /** * g_desktop_app_info_has_key: * @info: a #GDesktopAppInfo * @key: the key to look up * * Returns whether @key exists in the "Desktop Entry" group * of the keyfile backing @info. * * Returns: %TRUE if the @key exists * * Since: 2.36 */ 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 #GDesktopAppInfo * * Returns the list of "additional application actions" 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 #GDesktopAppInfo * @action_name: the name of the action as from * g_desktop_app_info_list_actions() * * Gets the user-visible display name of the "additional application * action" 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 #GDesktopAppInfo * @action_name: the name of the action as from * g_desktop_app_info_list_actions() * @launch_context: (nullable): a #GAppLaunchContext * * Activates the named application action. * * You may only call this function on action names that were * returned from g_desktop_app_info_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. * * As with g_app_info_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: */