/* GIO - GLib Input, Output and Streaming Library * * Copyright (C) 2006-2007 Red Hat, Inc. * Copyright © 2007 Ryan Lortie * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General * Public License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * Author: Alexander Larsson */ #include "config.h" #include #include #include #include #ifdef HAVE_CRT_EXTERNS_H #include #endif #include "gcontenttypeprivate.h" #include "gdesktopappinfo.h" #include "gfile.h" #include "gioerror.h" #include "gthemedicon.h" #include "gfileicon.h" #include #include "glibintl.h" #include "giomodule-priv.h" #include "gappinfo.h" #include "gioalias.h" /** * SECTION:gdesktopappinfo * @short_description: Application information from desktop files * @include: gio/gdesktopappinfo.h * * #GDesktopAppInfo is an implementation of #GAppInfo based on * desktop files. * **/ #define DEFAULT_APPLICATIONS_GROUP "Default Applications" #define ADDED_ASSOCIATIONS_GROUP "Added Associations" #define REMOVED_ASSOCIATIONS_GROUP "Removed Associations" #define MIME_CACHE_GROUP "MIME Cache" static void g_desktop_app_info_iface_init (GAppInfoIface *iface); static GList * get_all_desktop_entries_for_mime_type (const char *base_mime_type); static void mime_info_cache_reload (const char *dir); static gboolean g_desktop_app_info_ensure_saved (GDesktopAppInfo *info, GError **error); /** * GDesktopAppInfo: * * Information about an installed application from a desktop file. */ struct _GDesktopAppInfo { GObject parent_instance; char *desktop_id; char *filename; char *name; /* FIXME: what about GenericName ? */ char *comment; char *icon_name; GIcon *icon; char **only_show_in; char **not_show_in; char *try_exec; char *exec; char *binary; char *path; guint nodisplay : 1; guint hidden : 1; guint terminal : 1; guint startup_notify : 1; /* FIXME: what about StartupWMClass ? */ }; 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)) static gpointer search_path_init (gpointer data) { char **args = NULL; const char * const *data_dirs; const char *user_data_dir; int i, length, j; data_dirs = g_get_system_data_dirs (); length = g_strv_length ((char **) data_dirs); args = g_new (char *, length + 2); j = 0; user_data_dir = g_get_user_data_dir (); args[j++] = g_build_filename (user_data_dir, "applications", NULL); for (i = 0; i < length; i++) args[j++] = g_build_filename (data_dirs[i], "applications", NULL); args[j++] = NULL; return args; } static const char * const * get_applications_search_path (void) { static GOnce once_init = G_ONCE_INIT; return g_once (&once_init, search_path_init, NULL); } static void g_desktop_app_info_finalize (GObject *object) { GDesktopAppInfo *info; info = G_DESKTOP_APP_INFO (object); g_free (info->desktop_id); g_free (info->filename); g_free (info->name); g_free (info->comment); g_free (info->icon_name); if (info->icon) g_object_unref (info->icon); 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_OBJECT_CLASS (g_desktop_app_info_parent_class)->finalize (object); } static void g_desktop_app_info_class_init (GDesktopAppInfoClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); gobject_class->finalize = g_desktop_app_info_finalize; } static void g_desktop_app_info_init (GDesktopAppInfo *local) { } static char * binary_from_exec (const char *exec) { const char *p, *start; p = exec; while (*p == ' ') p++; start = p; while (*p != ' ' && *p != 0) p++; return g_strndup (start, p - start); } /** * g_desktop_app_info_new_from_keyfile: * @key_file: an opened #GKeyFile * * Creates a new #GDesktopAppInfo. * * Returns: a new #GDesktopAppInfo or %NULL on error. * * Since: 2.18 **/ GDesktopAppInfo * g_desktop_app_info_new_from_keyfile (GKeyFile *key_file) { GDesktopAppInfo *info; char *start_group; char *type; char *try_exec; start_group = g_key_file_get_start_group (key_file); if (start_group == NULL || strcmp (start_group, G_KEY_FILE_DESKTOP_GROUP) != 0) { g_free (start_group); return NULL; } 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 NULL; } 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 NULL; } g_free (t); } info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL); info->filename = NULL; info->name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NAME, NULL, NULL); info->comment = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_COMMENT, NULL, NULL); info->nodisplay = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, NULL) != FALSE; info->icon_name = g_key_file_get_locale_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ICON, NULL, NULL); info->only_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_ONLY_SHOW_IN, NULL, NULL); info->not_show_in = g_key_file_get_string_list (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NOT_SHOW_IN, NULL, NULL); info->try_exec = try_exec; info->exec = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_EXEC, NULL); info->path = g_key_file_get_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_PATH, NULL); info->terminal = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_TERMINAL, NULL) != FALSE; info->startup_notify = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_STARTUP_NOTIFY, NULL) != FALSE; info->hidden = g_key_file_get_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_HIDDEN, NULL) != FALSE; 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 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; } return info; } /** * g_desktop_app_info_new_from_filename: * @filename: the path of a desktop file, in the GLib filename encoding * * Creates a new #GDesktopAppInfo. * * Returns: a new #GDesktopAppInfo or %NULL on error. **/ GDesktopAppInfo * g_desktop_app_info_new_from_filename (const char *filename) { GKeyFile *key_file; GDesktopAppInfo *info = NULL; key_file = g_key_file_new (); if (g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL)) { info = g_desktop_app_info_new_from_keyfile (key_file); if (info) info->filename = g_strdup (filename); } g_key_file_free (key_file); return info; } /** * g_desktop_app_info_new: * @desktop_id: the desktop file id * * Creates a new #GDesktopAppInfo. * * Returns: a new #GDesktopAppInfo, or %NULL if no desktop file with that id **/ GDesktopAppInfo * g_desktop_app_info_new (const char *desktop_id) { GDesktopAppInfo *appinfo; const char * const *dirs; char *basename; int i; dirs = get_applications_search_path (); basename = g_strdup (desktop_id); for (i = 0; dirs[i] != NULL; i++) { char *filename; char *p; filename = g_build_filename (dirs[i], desktop_id, NULL); appinfo = g_desktop_app_info_new_from_filename (filename); g_free (filename); if (appinfo != NULL) goto found; p = basename; while ((p = strchr (p, '-')) != NULL) { *p = '/'; filename = g_build_filename (dirs[i], basename, NULL); appinfo = g_desktop_app_info_new_from_filename (filename); g_free (filename); if (appinfo != NULL) goto found; *p = '-'; p++; } } g_free (basename); return NULL; found: g_free (basename); appinfo->desktop_id = g_strdup (desktop_id); if (g_desktop_app_info_get_is_hidden (appinfo)) { g_object_unref (appinfo); appinfo = NULL; } return appinfo; } static GAppInfo * g_desktop_app_info_dup (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); GDesktopAppInfo *new_info; new_info = g_object_new (G_TYPE_DESKTOP_APP_INFO, NULL); new_info->filename = g_strdup (info->filename); new_info->desktop_id = g_strdup (info->desktop_id); new_info->name = g_strdup (info->name); new_info->comment = g_strdup (info->comment); new_info->nodisplay = info->nodisplay; new_info->icon_name = g_strdup (info->icon_name); new_info->icon = g_object_ref (info->icon); new_info->only_show_in = g_strdupv (info->only_show_in); new_info->not_show_in = g_strdupv (info->not_show_in); new_info->try_exec = g_strdup (info->try_exec); new_info->exec = g_strdup (info->exec); new_info->binary = g_strdup (info->binary); new_info->path = g_strdup (info->path); new_info->hidden = info->hidden; new_info->terminal = info->terminal; new_info->startup_notify = info->startup_notify; return G_APP_INFO (new_info); } static gboolean g_desktop_app_info_equal (GAppInfo *appinfo1, GAppInfo *appinfo2) { GDesktopAppInfo *info1 = G_DESKTOP_APP_INFO (appinfo1); GDesktopAppInfo *info2 = G_DESKTOP_APP_INFO (appinfo2); if (info1->desktop_id == NULL || info2->desktop_id == NULL) return info1 == info2; return strcmp (info1->desktop_id, info2->desktop_id) == 0; } static const char * g_desktop_app_info_get_id (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->desktop_id; } static const char * g_desktop_app_info_get_name (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (info->name == NULL) return _("Unnamed"); return info->name; } /** * 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; } 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 GIcon * g_desktop_app_info_get_icon (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); return info->icon; } static char * expand_macro_single (char macro, char *uri) { GFile *file; char *result = NULL; char *path, *name; file = g_file_new_for_uri (uri); path = g_file_get_path (file); g_object_unref (file); switch (macro) { case 'u': case 'U': result = g_shell_quote (uri); break; case 'f': case 'F': if (path) result = g_shell_quote (path); break; case 'd': case 'D': if (path) { name = g_path_get_dirname (path); result = g_shell_quote (name); g_free (name); } break; case 'n': case 'N': if (path) { name = g_path_get_basename (path); result = g_shell_quote (name); g_free (name); } break; } g_free (path); return result; } static void expand_macro (char macro, GString *exec, GDesktopAppInfo *info, GList **uri_list) { GList *uris = *uri_list; char *expanded; gboolean force_file_uri; char force_file_uri_macro; 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. */ 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: force_file_uri_macro = macro; force_file_uri = FALSE; break; } switch (macro) { case 'u': case 'f': case 'd': case 'n': if (uris) { if (!force_file_uri) { expanded = expand_macro_single (macro, uris->data); } else { expanded = expand_macro_single (force_file_uri_macro, uris->data); if (expanded == NULL) expanded = expand_macro_single (macro, uris->data); } if (expanded) { g_string_append (exec, expanded); g_free (expanded); } uris = uris->next; } break; case 'U': case 'F': case 'D': case 'N': while (uris) { if (!force_file_uri) { expanded = expand_macro_single (macro, uris->data); } else { expanded = expand_macro_single (force_file_uri_macro, uris->data); if (expanded == NULL) expanded = expand_macro_single (macro, uris->data); } 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 "); g_string_append (exec, info->icon_name); } break; case 'c': if (info->name) g_string_append (exec, info->name); break; case 'k': if (info->filename) g_string_append (exec, info->filename); break; case 'm': /* deprecated */ break; case '%': g_string_append_c (exec, '%'); break; } *uri_list = uris; } static gboolean expand_application_parameters (GDesktopAppInfo *info, GList **uris, int *argc, char ***argv, GError **error) { GList *uri_list = *uris; const char *p = info->exec; GString *expanded_exec = g_string_new (NULL); gboolean res; if (info->exec == NULL) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Desktop file didn't specify Exec field")); return FALSE; } while (*p) { if (p[0] == '%' && p[1] != '\0') { expand_macro (p[1], expanded_exec, info, uris); p++; } else g_string_append_c (expanded_exec, *p); p++; } /* No file substitutions */ if (uri_list == *uris && uri_list != NULL) { /* If there is no macro default to %f. This is also what KDE does */ g_string_append_c (expanded_exec, ' '); expand_macro ('f', expanded_exec, info, uris); } res = g_shell_parse_argv (expanded_exec->str, argc, argv, error); g_string_free (expanded_exec, TRUE); return res; } static gboolean prepend_terminal_to_vector (int *argc, char ***argv) { #ifndef G_OS_WIN32 char **real_argv; int real_argc; int i, j; char **term_argv = NULL; int term_argc = 0; char *check; char **the_argv; g_return_val_if_fail (argc != NULL, FALSE); g_return_val_if_fail (argv != NULL, FALSE); /* sanity */ if(*argv == NULL) *argc = 0; the_argv = *argv; /* compute size if not given */ if (*argc < 0) { for (i = 0; the_argv[i] != NULL; i++) ; *argc = i; } term_argc = 2; term_argv = g_new0 (char *, 3); check = g_find_program_in_path ("gnome-terminal"); if (check != NULL) { term_argv[0] = check; /* Note that gnome-terminal takes -x and * as -e in gnome-terminal is broken we use that. */ term_argv[1] = g_strdup ("-x"); } else { if (check == NULL) check = g_find_program_in_path ("nxterm"); if (check == NULL) check = g_find_program_in_path ("color-xterm"); if (check == NULL) check = g_find_program_in_path ("rxvt"); if (check == NULL) check = g_find_program_in_path ("xterm"); if (check == NULL) check = g_find_program_in_path ("dtterm"); if (check == NULL) { check = g_strdup ("xterm"); g_warning ("couldn't find a terminal, falling back to xterm"); } term_argv[0] = check; term_argv[1] = g_strdup ("-e"); } real_argc = term_argc + *argc; real_argv = g_new (char *, real_argc + 1); for (i = 0; i < term_argc; i++) real_argv[i] = term_argv[i]; for (j = 0; j < *argc; j++, i++) real_argv[i] = (char *)the_argv[j]; real_argv[i] = NULL; g_free (*argv); *argv = real_argv; *argc = real_argc; /* we use g_free here as we sucked all the inner strings * out from it into real_argv */ g_free (term_argv); return TRUE; #else return FALSE; #endif /* G_OS_WIN32 */ } /* '=' is the new '\0'. * DO NOT CALL unless at least one string ends with '=' */ static gboolean is_env (const char *a, const char *b) { while (*a == *b) { if (*a == 0 || *b == 0) return FALSE; if (*a == '=') return TRUE; a++; b++; } return FALSE; } /* free with g_strfreev */ static char ** replace_env_var (char **old_environ, const char *env_var, const char *new_value) { int length, new_length; int index, new_index; char **new_environ; int i, new_i; /* do two things at once: * - discover the length of the environment ('length') * - find the location (if any) of the env var ('index') */ index = -1; for (length = 0; old_environ[length]; length++) { /* if we already have it in our environment, replace */ if (is_env (old_environ[length], env_var)) index = length; } /* no current env var, no desired env value. * this is easy :) */ if (new_value == NULL && index == -1) return old_environ; /* in all cases now, we will be using a modified environment. * determine its length and allocated it. * * after this block: * new_index = location to insert, if any * new_length = length of the new array * new_environ = the pointer array for the new environment */ if (new_value == NULL && index >= 0) { /* in this case, we will be removing an entry */ new_length = length - 1; new_index = -1; } else if (new_value != NULL && index < 0) { /* in this case, we will be adding an entry to the end */ new_length = length + 1; new_index = length; } else /* in this case, we will be replacing the existing entry */ { new_length = length; new_index = index; } new_environ = g_malloc (sizeof (char *) * (new_length + 1)); new_environ[new_length] = NULL; /* now we do the copying. * for each entry in the new environment, we decide what to do */ i = 0; for (new_i = 0; new_i < new_length; new_i++) { if (new_i == new_index) { /* insert our new item */ new_environ[new_i] = g_strconcat (env_var, "=", new_value, NULL); /* if we had an old entry, skip it now */ if (index >= 0) i++; } else { /* if this is the old DESKTOP_STARTUP_ID, skip it */ if (i == index) i++; /* copy an old item */ new_environ[new_i] = g_strdup (old_environ[i]); i++; } } g_strfreev (old_environ); return new_environ; } static GList * uri_list_segment_to_files (GList *start, GList *end) { GList *res; GFile *file; res = NULL; while (start != NULL && start != end) { file = g_file_new_for_uri ((char *)start->data); res = g_list_prepend (res, file); start = start->next; } return g_list_reverse (res); } #ifdef HAVE__NSGETENVIRON #define environ (*_NSGetEnviron()) #elif !defined(G_OS_WIN32) /* According to the Single Unix Specification, environ is not in * * any system header, although unistd.h often declares it. * */ extern char **environ; #endif static gboolean g_desktop_app_info_launch_uris (GAppInfo *appinfo, GList *uris, GAppLaunchContext *launch_context, GError **error) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); gboolean completed = FALSE; GList *old_uris; GList *launched_files; char **envp; char **argv; int argc; char *display; char *sn_id; g_return_val_if_fail (appinfo != NULL, FALSE); argv = NULL; envp = NULL; do { old_uris = uris; if (!expand_application_parameters (info, &uris, &argc, &argv, error)) goto out; 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; } sn_id = NULL; if (launch_context) { launched_files = uri_list_segment_to_files (old_uris, uris); display = g_app_launch_context_get_display (launch_context, appinfo, launched_files); sn_id = NULL; if (info->startup_notify) sn_id = g_app_launch_context_get_startup_notify_id (launch_context, appinfo, launched_files); if (display || sn_id) { #ifdef G_OS_WIN32 /* FIXME */ envp = g_new0 (char *, 1); #else envp = g_strdupv (environ); #endif if (display) envp = replace_env_var (envp, "DISPLAY", display); if (sn_id) envp = replace_env_var (envp, "DESKTOP_STARTUP_ID", sn_id); } g_free (display); g_list_foreach (launched_files, (GFunc)g_object_unref, NULL); g_list_free (launched_files); } if (!g_spawn_async (info->path, /* working directory */ argv, envp, G_SPAWN_SEARCH_PATH /* flags */, NULL /* child_setup */, NULL /* data */, NULL /* child_pid */, error)) { if (sn_id) { g_app_launch_context_launch_failed (launch_context, sn_id); g_free (sn_id); } goto out; } g_free (sn_id); g_strfreev (envp); g_strfreev (argv); envp = NULL; argv = NULL; } while (uris != NULL); completed = TRUE; out: g_strfreev (argv); g_strfreev (envp); return completed; } 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_foreach (uris, (GFunc)g_free, NULL); g_list_free (uris); return res; } G_LOCK_DEFINE_STATIC (g_desktop_env); static gchar *g_desktop_env = NULL; /** * 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() to evaluate the * OnlyShowIn and NotShowIn * desktop entry fields. * * The Desktop * Menu specification recognizes the following: * * GNOME * KDE * ROX * XFCE * Old * * * Should be called only once; subsequent calls are ignored. */ void g_desktop_app_info_set_desktop_env (const gchar *desktop_env) { G_LOCK (g_desktop_env); if (!g_desktop_env) g_desktop_env = g_strdup (desktop_env); G_UNLOCK (g_desktop_env); } static gboolean g_desktop_app_info_should_show (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); gboolean found; const gchar *desktop_env; int i; if (info->nodisplay) return FALSE; G_LOCK (g_desktop_env); desktop_env = g_desktop_env; G_UNLOCK (g_desktop_env); if (info->only_show_in) { if (desktop_env == NULL) return FALSE; found = FALSE; for (i = 0; info->only_show_in[i] != NULL; i++) { if (strcmp (info->only_show_in[i], desktop_env) == 0) { found = TRUE; break; } } if (!found) return FALSE; } if (info->not_show_in && desktop_env) { for (i = 0; info->not_show_in[i] != NULL; i++) { if (strcmp (info->not_show_in[i], desktop_env) == 0) return FALSE; } } return TRUE; } typedef enum { APP_DIR, MIMETYPE_DIR } DirType; static char * ensure_dir (DirType type, GError **error) { char *path, *display_name; int errsv; if (type == APP_DIR) path = g_build_filename (g_get_user_data_dir (), "applications", NULL); else path = g_build_filename (g_get_user_data_dir (), "mime", "packages", NULL); errno = 0; if (g_mkdir_with_parents (path, 0700) == 0) return path; errsv = errno; display_name = g_filename_display_name (path); if (type == APP_DIR) g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv), _("Can't create user application configuration folder %s: %s"), display_name, g_strerror (errsv)); else g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv), _("Can't create user MIME configuration folder %s: %s"), display_name, g_strerror (errsv)); g_free (display_name); g_free (path); return NULL; } static gboolean update_mimeapps_list (const char *desktop_id, const char *content_type, gboolean add_at_start, gboolean add_at_end, gboolean remove, GError **error) { char *dirname, *filename; GKeyFile *key_file; gboolean load_succeeded, res; char **old_list; char **list; gsize length, data_size; char *data; int i, j, k; char **content_types; /* Don't add both at start and end */ g_assert (!(add_at_start && add_at_end)); dirname = ensure_dir (APP_DIR, error); if (!dirname) return FALSE; filename = g_build_filename (dirname, "mimeapps.list", NULL); g_free (dirname); key_file = g_key_file_new (); load_succeeded = g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL); if (!load_succeeded || !g_key_file_has_group (key_file, ADDED_ASSOCIATIONS_GROUP)) { g_key_file_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, 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 (add_at_start) 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]); } } if (add_at_end) 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 (remove) list[i++] = g_strdup (desktop_id); if (old_list) { for (j = 0; old_list[j] != NULL; j++) { if (g_strcmp0 (old_list[j], desktop_id) != 0) list[i++] = g_strdup (old_list[j]); } } list[i] = NULL; g_strfreev (old_list); if (list[0] == NULL || desktop_id == NULL) g_key_file_remove_key (key_file, REMOVED_ASSOCIATIONS_GROUP, content_types[k], NULL); else g_key_file_set_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP, content_types[k], (const char * const *)list, i); g_strfreev (list); } g_strfreev (content_types); data = g_key_file_to_data (key_file, &data_size, error); g_key_file_free (key_file); res = g_file_set_contents (filename, data, data_size, error); mime_info_cache_reload (NULL); g_free (filename); g_free (data); return res; } static gboolean g_desktop_app_info_set_as_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; return update_mimeapps_list (info->desktop_id, content_type, TRUE, FALSE, FALSE, error); } static void update_program_done (GPid pid, gint status, gpointer data) { /* Did the application exit correctly */ if (WIFEXITED (status) && WEXITSTATUS (status) == 0) { /* 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, NULL)) g_child_watch_add (pid, update_program_done, NULL); else { /* If we get an error at this point, it's quite likely the user doesn't * have an installed copy of either 'update-mime-database' or * 'update-desktop-database'. I don't think we want to popup an error * dialog at this point, so we just do a g_warning to give the user a * chance of debugging it. */ g_warning ("%s", error->message); } g_free (argv[1]); } static gboolean g_desktop_app_info_set_as_default_for_extension (GAppInfo *appinfo, const char *extension, GError **error) { char *filename, *basename, *mimetype; char *dirname; gboolean res; if (!g_desktop_app_info_ensure_saved (G_DESKTOP_APP_INFO (appinfo), error)) return FALSE; dirname = ensure_dir (MIMETYPE_DIR, error); if (!dirname) return FALSE; basename = g_strdup_printf ("user-extension-%s.xml", extension); filename = g_build_filename (dirname, basename, NULL); g_free (basename); g_free (dirname); mimetype = g_strdup_printf ("application/x-extension-%s", extension); if (!g_file_test (filename, G_FILE_TEST_EXISTS)) { char *contents; contents = g_strdup_printf ("\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, FALSE, TRUE, FALSE, 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, FALSE, FALSE, TRUE, error); } 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); 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); g_key_file_set_string (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_COMMENT, info->comment); g_key_file_set_boolean (key_file, G_KEY_FILE_DESKTOP_GROUP, G_KEY_FILE_DESKTOP_KEY_NO_DISPLAY, TRUE); data = g_key_file_to_data (key_file, &data_size, NULL); g_key_file_free (key_file); desktop_id = g_strdup_printf ("userapp-%s-XXXXXX.desktop", info->name); filename = g_build_filename (dirname, desktop_id, NULL); g_free (desktop_id); g_free (dirname); fd = g_mkstemp (filename); if (fd == -1) { char *display_name; display_name = g_filename_display_name (filename); g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Can't create user desktop file %s"), display_name); g_free (display_name); g_free (filename); g_free (data); return FALSE; } desktop_id = g_path_get_basename (filename); close (fd); res = g_file_set_contents (filename, data, data_size, error); if (!res) { g_free (desktop_id); g_free (filename); return FALSE; } info->filename = filename; info->desktop_id = desktop_id; run_update_command ("update-desktop-database", "applications"); return TRUE; } static gboolean g_desktop_app_info_can_delete (GAppInfo *appinfo) { GDesktopAppInfo *info = G_DESKTOP_APP_INFO (appinfo); if (info->filename) 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, FALSE, FALSE, FALSE, NULL); g_free (info->filename); info->filename = NULL; g_free (info->desktop_id); info->desktop_id = NULL; return TRUE; } } return FALSE; } /** * g_app_info_create_from_commandline: * @commandline: the commandline to use * @application_name: 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 occuring, %NULL to ignore. * * Creates a new #GAppInfo from the given information. * * Returns: 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; 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; info->startup_notify = FALSE; info->hidden = FALSE; if (flags & G_APP_INFO_CREATE_SUPPORTS_URIS) 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 = g_path_get_basename (split[0]); g_strfreev (split); info->name = basename; if (info->name == NULL) info->name = g_strdup ("custom"); } info->comment = g_strdup_printf (_("Custom definition for %s"), info->name); return G_APP_INFO (info); } static void g_desktop_app_info_iface_init (GAppInfoIface *iface) { iface->dup = g_desktop_app_info_dup; iface->equal = g_desktop_app_info_equal; iface->get_id = g_desktop_app_info_get_id; iface->get_name = g_desktop_app_info_get_name; iface->get_description = g_desktop_app_info_get_description; iface->get_executable = g_desktop_app_info_get_executable; iface->get_icon = g_desktop_app_info_get_icon; iface->launch = g_desktop_app_info_launch; iface->supports_uris = g_desktop_app_info_supports_uris; iface->supports_files = g_desktop_app_info_supports_files; iface->launch_uris = g_desktop_app_info_launch_uris; iface->should_show = g_desktop_app_info_should_show; iface->set_as_default_for_type = g_desktop_app_info_set_as_default_for_type; iface->set_as_default_for_extension = g_desktop_app_info_set_as_default_for_extension; iface->add_supports_type = g_desktop_app_info_add_supports_type; iface->can_remove_supports_type = g_desktop_app_info_can_remove_supports_type; iface->remove_supports_type = g_desktop_app_info_remove_supports_type; iface->can_delete = g_desktop_app_info_can_delete; iface->do_delete = g_desktop_app_info_delete; } static gboolean app_info_in_list (GAppInfo *info, GList *list) { while (list != NULL) { if (g_app_info_equal (info, list->data)) return TRUE; list = list->next; } return FALSE; } /** * g_app_info_get_all_for_type: * @content_type: the content type to find a #GAppInfo for * * Gets a list of all #GAppInfo s for a given content type. * * Returns: #GList of #GAppInfo s for given @content_type * or %NULL on error. **/ GList * g_app_info_get_all_for_type (const char *content_type) { GList *desktop_entries, *l; GList *infos; GDesktopAppInfo *info; g_return_val_if_fail (content_type != NULL, NULL); desktop_entries = get_all_desktop_entries_for_mime_type (content_type); infos = NULL; for (l = desktop_entries; l != NULL; l = l->next) { char *desktop_entry = l->data; info = g_desktop_app_info_new (desktop_entry); if (info) { if (app_info_in_list (G_APP_INFO (info), infos)) g_object_unref (info); else infos = g_list_prepend (infos, info); } g_free (desktop_entry); } g_list_free (desktop_entries); return g_list_reverse (infos); } /** * g_app_info_reset_type_associations: * content_type: a content type * * Removes all changes to the type associations done by * g_app_info_set_as_default_for_type(), * g_app_info_set_as_default_for_extension(), * g_app_info_add_supports_type() of 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, FALSE, FALSE, FALSE, 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 #GAppInfo that correspond to a given content type. * * Returns: #GAppInfo for given @content_type or %NULL on error. **/ GAppInfo * g_app_info_get_default_for_type (const char *content_type, gboolean must_support_uris) { GList *desktop_entries, *l; GAppInfo *info; g_return_val_if_fail (content_type != NULL, NULL); desktop_entries = get_all_desktop_entries_for_mime_type (content_type); info = NULL; for (l = desktop_entries; l != NULL; l = l->next) { char *desktop_entry = l->data; info = (GAppInfo *)g_desktop_app_info_new (desktop_entry); if (info) { if (must_support_uris && !g_app_info_supports_uris (info)) { g_object_unref (info); info = NULL; } else break; } } g_list_foreach (desktop_entries, (GFunc)g_free, NULL); g_list_free (desktop_entries); return info; } /** * g_app_info_get_default_for_uri_scheme: * @uri_scheme: a string containing a URI scheme. * * Gets the default application for launching applications * using this 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: #GAppInfo for given @uri_scheme or %NULL on error. **/ GAppInfo * g_app_info_get_default_for_uri_scheme (const char *uri_scheme) { static gsize lookup = 0; if (g_once_init_enter (&lookup)) { gsize setup_value = 1; GDesktopAppInfoLookup *lookup_instance; const char *use_this; GIOExtensionPoint *ep; GIOExtension *extension; GList *l; use_this = g_getenv ("GIO_USE_URI_ASSOCIATION"); /* Ensure vfs in modules loaded */ _g_io_modules_ensure_loaded (); ep = g_io_extension_point_lookup (G_DESKTOP_APP_INFO_LOOKUP_EXTENSION_POINT_NAME); lookup_instance = NULL; if (use_this) { extension = g_io_extension_point_get_extension_by_name (ep, use_this); if (extension) lookup_instance = g_object_new (g_io_extension_get_type (extension), NULL); } if (lookup_instance == NULL) { for (l = g_io_extension_point_get_extensions (ep); l != NULL; l = l->next) { extension = l->data; lookup_instance = g_object_new (g_io_extension_get_type (extension), NULL); if (lookup_instance != NULL) break; } } if (lookup_instance != NULL) setup_value = (gsize)lookup_instance; g_once_init_leave (&lookup, setup_value); } if (lookup == 1) return NULL; return g_desktop_app_info_lookup_get_default_for_uri_scheme (G_DESKTOP_APP_INFO_LOOKUP (lookup), uri_scheme); } static void get_apps_from_dir (GHashTable *apps, const char *dirname, const char *prefix) { GDir *dir; const char *basename; char *filename, *subprefix, *desktop_id; gboolean hidden; GDesktopAppInfo *appinfo; dir = g_dir_open (dirname, 0, NULL); if (dir) { while ((basename = g_dir_read_name (dir)) != NULL) { filename = g_build_filename (dirname, basename, NULL); if (g_str_has_suffix (basename, ".desktop")) { desktop_id = g_strconcat (prefix, basename, NULL); /* Use _extended so we catch NULLs too (hidden) */ if (!g_hash_table_lookup_extended (apps, desktop_id, NULL, NULL)) { appinfo = g_desktop_app_info_new_from_filename (filename); if (appinfo && g_desktop_app_info_get_is_hidden (appinfo)) { g_object_unref (appinfo); appinfo = NULL; hidden = TRUE; } if (appinfo || hidden) { g_hash_table_insert (apps, g_strdup (desktop_id), appinfo); if (appinfo) { /* Reuse instead of strdup here */ appinfo->desktop_id = desktop_id; desktop_id = NULL; } } } g_free (desktop_id); } else { if (g_file_test (filename, G_FILE_TEST_IS_DIR)) { subprefix = g_strconcat (prefix, basename, "-", NULL); get_apps_from_dir (apps, filename, subprefix); g_free (subprefix); } } g_free (filename); } g_dir_close (dir); } } /** * g_app_info_get_all: * * Gets a list of all of the applications currently registered * on this system. * * For desktop files, this includes applications that have * 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: a newly allocated #GList of references to #GAppInfos. **/ GList * g_app_info_get_all (void) { const char * const *dirs; GHashTable *apps; GHashTableIter iter; gpointer value; int i; GList *infos; dirs = get_applications_search_path (); apps = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); for (i = 0; dirs[i] != NULL; i++) get_apps_from_dir (apps, dirs[i], ""); infos = NULL; g_hash_table_iter_init (&iter, apps); while (g_hash_table_iter_next (&iter, NULL, &value)) { if (value) infos = g_list_prepend (infos, value); } g_hash_table_destroy (apps); return g_list_reverse (infos); } /* Cacheing of mimeinfo.cache and defaults.list files */ typedef struct { char *path; GHashTable *mime_info_cache_map; GHashTable *defaults_list_map; GHashTable *mimeapps_list_added_map; GHashTable *mimeapps_list_removed_map; time_t mime_info_cache_timestamp; time_t defaults_list_timestamp; time_t mimeapps_list_timestamp; } MimeInfoCacheDir; typedef struct { GList *dirs; /* mimeinfo.cache and defaults.list */ GHashTable *global_defaults_cache; /* global results of defaults.list lookup and validation */ time_t last_stat_time; guint should_ping_mime_monitor : 1; } MimeInfoCache; static MimeInfoCache *mime_info_cache = NULL; G_LOCK_DEFINE_STATIC (mime_info_cache); static void mime_info_cache_dir_add_desktop_entries (MimeInfoCacheDir *dir, const char *mime_type, char **new_desktop_file_ids); static MimeInfoCache * mime_info_cache_new (void); static void destroy_info_cache_value (gpointer key, GList *value, gpointer data) { g_list_foreach (value, (GFunc)g_free, NULL); g_list_free (value); } static void destroy_info_cache_map (GHashTable *info_cache_map) { g_hash_table_foreach (info_cache_map, (GHFunc)destroy_info_cache_value, NULL); g_hash_table_destroy (info_cache_map); } static gboolean mime_info_cache_dir_out_of_date (MimeInfoCacheDir *dir, const char *cache_file, time_t *timestamp) { struct stat buf; char *filename; filename = g_build_filename (dir->path, cache_file, NULL); if (g_stat (filename, &buf) < 0) { g_free (filename); return TRUE; } g_free (filename); if (buf.st_mtime != *timestamp) return TRUE; return FALSE; } /* Call with lock held */ static gboolean remove_all (gpointer key, gpointer value, gpointer user_data) { return TRUE; } static void mime_info_cache_blow_global_cache (void) { g_hash_table_foreach_remove (mime_info_cache->global_defaults_cache, remove_all, NULL); } static void mime_info_cache_dir_init (MimeInfoCacheDir *dir) { GError *load_error; GKeyFile *key_file; gchar *filename, **mime_types; int i; struct stat buf; load_error = NULL; mime_types = NULL; if (dir->mime_info_cache_map != NULL && !mime_info_cache_dir_out_of_date (dir, "mimeinfo.cache", &dir->mime_info_cache_timestamp)) return; if (dir->mime_info_cache_map != NULL) destroy_info_cache_map (dir->mime_info_cache_map); dir->mime_info_cache_map = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify) g_free, NULL); key_file = g_key_file_new (); filename = g_build_filename (dir->path, "mimeinfo.cache", NULL); if (g_stat (filename, &buf) < 0) goto error; if (dir->mime_info_cache_timestamp > 0) mime_info_cache->should_ping_mime_monitor = TRUE; dir->mime_info_cache_timestamp = buf.st_mtime; g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error); g_free (filename); filename = NULL; if (load_error != NULL) goto error; mime_types = g_key_file_get_keys (key_file, MIME_CACHE_GROUP, NULL, &load_error); if (load_error != NULL) goto error; for (i = 0; mime_types[i] != NULL; i++) { gchar **desktop_file_ids; char *unaliased_type; desktop_file_ids = g_key_file_get_string_list (key_file, MIME_CACHE_GROUP, mime_types[i], NULL, NULL); if (desktop_file_ids == NULL) continue; unaliased_type = _g_unix_content_type_unalias (mime_types[i]); mime_info_cache_dir_add_desktop_entries (dir, unaliased_type, desktop_file_ids); g_free (unaliased_type); g_strfreev (desktop_file_ids); } g_strfreev (mime_types); g_key_file_free (key_file); return; error: g_free (filename); g_key_file_free (key_file); if (mime_types != NULL) g_strfreev (mime_types); if (load_error) g_error_free (load_error); } static void mime_info_cache_dir_init_defaults_list (MimeInfoCacheDir *dir) { GKeyFile *key_file; GError *load_error; gchar *filename, **mime_types; char *unaliased_type; char **desktop_file_ids; int i; struct stat buf; load_error = NULL; mime_types = NULL; if (dir->defaults_list_map != NULL && !mime_info_cache_dir_out_of_date (dir, "defaults.list", &dir->defaults_list_timestamp)) return; if (dir->defaults_list_map != NULL) g_hash_table_destroy (dir->defaults_list_map); dir->defaults_list_map = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_strfreev); key_file = g_key_file_new (); filename = g_build_filename (dir->path, "defaults.list", NULL); if (g_stat (filename, &buf) < 0) goto error; if (dir->defaults_list_timestamp > 0) mime_info_cache->should_ping_mime_monitor = TRUE; dir->defaults_list_timestamp = buf.st_mtime; g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error); g_free (filename); filename = NULL; if (load_error != NULL) goto error; mime_types = g_key_file_get_keys (key_file, DEFAULT_APPLICATIONS_GROUP, NULL, NULL); if (mime_types != NULL) { for (i = 0; mime_types[i] != NULL; i++) { desktop_file_ids = g_key_file_get_string_list (key_file, DEFAULT_APPLICATIONS_GROUP, mime_types[i], NULL, NULL); if (desktop_file_ids == NULL) continue; unaliased_type = _g_unix_content_type_unalias (mime_types[i]); g_hash_table_replace (dir->defaults_list_map, unaliased_type, desktop_file_ids); } g_strfreev (mime_types); } g_key_file_free (key_file); return; error: g_free (filename); g_key_file_free (key_file); if (mime_types != NULL) g_strfreev (mime_types); if (load_error) g_error_free (load_error); } static void mime_info_cache_dir_init_mimeapps_list (MimeInfoCacheDir *dir) { GKeyFile *key_file; GError *load_error; gchar *filename, **mime_types; char *unaliased_type; char **desktop_file_ids; int i; struct stat buf; load_error = NULL; mime_types = NULL; if (dir->mimeapps_list_added_map != NULL && !mime_info_cache_dir_out_of_date (dir, "mimeapps.list", &dir->mimeapps_list_timestamp)) return; if (dir->mimeapps_list_added_map != NULL) g_hash_table_destroy (dir->mimeapps_list_added_map); dir->mimeapps_list_added_map = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_strfreev); if (dir->mimeapps_list_removed_map != NULL) g_hash_table_destroy (dir->mimeapps_list_removed_map); dir->mimeapps_list_removed_map = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_strfreev); key_file = g_key_file_new (); filename = g_build_filename (dir->path, "mimeapps.list", NULL); if (g_stat (filename, &buf) < 0) goto error; if (dir->mimeapps_list_timestamp > 0) mime_info_cache->should_ping_mime_monitor = TRUE; dir->mimeapps_list_timestamp = buf.st_mtime; g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, &load_error); g_free (filename); filename = NULL; if (load_error != NULL) goto error; mime_types = g_key_file_get_keys (key_file, ADDED_ASSOCIATIONS_GROUP, NULL, NULL); if (mime_types != NULL) { for (i = 0; mime_types[i] != NULL; i++) { desktop_file_ids = g_key_file_get_string_list (key_file, ADDED_ASSOCIATIONS_GROUP, mime_types[i], NULL, NULL); if (desktop_file_ids == NULL) continue; unaliased_type = _g_unix_content_type_unalias (mime_types[i]); g_hash_table_replace (dir->mimeapps_list_added_map, unaliased_type, desktop_file_ids); } g_strfreev (mime_types); } mime_types = g_key_file_get_keys (key_file, REMOVED_ASSOCIATIONS_GROUP, NULL, NULL); if (mime_types != NULL) { for (i = 0; mime_types[i] != NULL; i++) { desktop_file_ids = g_key_file_get_string_list (key_file, REMOVED_ASSOCIATIONS_GROUP, mime_types[i], NULL, NULL); if (desktop_file_ids == NULL) continue; unaliased_type = _g_unix_content_type_unalias (mime_types[i]); g_hash_table_replace (dir->mimeapps_list_removed_map, unaliased_type, desktop_file_ids); } g_strfreev (mime_types); } g_key_file_free (key_file); return; error: g_free (filename); g_key_file_free (key_file); if (mime_types != NULL) g_strfreev (mime_types); if (load_error) g_error_free (load_error); } static MimeInfoCacheDir * mime_info_cache_dir_new (const char *path) { MimeInfoCacheDir *dir; dir = g_new0 (MimeInfoCacheDir, 1); dir->path = g_strdup (path); return dir; } static void mime_info_cache_dir_free (MimeInfoCacheDir *dir) { if (dir == NULL) return; if (dir->mime_info_cache_map != NULL) { destroy_info_cache_map (dir->mime_info_cache_map); dir->mime_info_cache_map = NULL; } if (dir->defaults_list_map != NULL) { g_hash_table_destroy (dir->defaults_list_map); dir->defaults_list_map = NULL; } if (dir->mimeapps_list_added_map != NULL) { g_hash_table_destroy (dir->mimeapps_list_added_map); dir->mimeapps_list_added_map = NULL; } if (dir->mimeapps_list_removed_map != NULL) { g_hash_table_destroy (dir->mimeapps_list_removed_map); dir->mimeapps_list_removed_map = NULL; } g_free (dir); } static void mime_info_cache_dir_add_desktop_entries (MimeInfoCacheDir *dir, const char *mime_type, char **new_desktop_file_ids) { GList *desktop_file_ids; int i; desktop_file_ids = g_hash_table_lookup (dir->mime_info_cache_map, mime_type); for (i = 0; new_desktop_file_ids[i] != NULL; i++) { if (!g_list_find (desktop_file_ids, new_desktop_file_ids[i])) desktop_file_ids = g_list_append (desktop_file_ids, g_strdup (new_desktop_file_ids[i])); } g_hash_table_insert (dir->mime_info_cache_map, g_strdup (mime_type), desktop_file_ids); } static void mime_info_cache_init_dir_lists (void) { const char * const *dirs; int i; mime_info_cache = mime_info_cache_new (); dirs = get_applications_search_path (); for (i = 0; dirs[i] != NULL; i++) { MimeInfoCacheDir *dir; dir = mime_info_cache_dir_new (dirs[i]); if (dir != NULL) { mime_info_cache_dir_init (dir); mime_info_cache_dir_init_defaults_list (dir); mime_info_cache_dir_init_mimeapps_list (dir); mime_info_cache->dirs = g_list_append (mime_info_cache->dirs, dir); } } } static void mime_info_cache_update_dir_lists (void) { GList *tmp; tmp = mime_info_cache->dirs; while (tmp != NULL) { MimeInfoCacheDir *dir = (MimeInfoCacheDir *) tmp->data; /* No need to do this if we had file monitors... */ mime_info_cache_blow_global_cache (); mime_info_cache_dir_init (dir); mime_info_cache_dir_init_defaults_list (dir); mime_info_cache_dir_init_mimeapps_list (dir); tmp = tmp->next; } } static void mime_info_cache_init (void) { G_LOCK (mime_info_cache); if (mime_info_cache == NULL) mime_info_cache_init_dir_lists (); else { time_t now; time (&now); if (now >= mime_info_cache->last_stat_time + 10) { mime_info_cache_update_dir_lists (); mime_info_cache->last_stat_time = now; } } if (mime_info_cache->should_ping_mime_monitor) { /* g_idle_add (emit_mime_changed, NULL); */ mime_info_cache->should_ping_mime_monitor = FALSE; } G_UNLOCK (mime_info_cache); } static MimeInfoCache * mime_info_cache_new (void) { MimeInfoCache *cache; cache = g_new0 (MimeInfoCache, 1); cache->global_defaults_cache = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify) g_free, (GDestroyNotify) g_free); return cache; } static void mime_info_cache_free (MimeInfoCache *cache) { if (cache == NULL) return; g_list_foreach (cache->dirs, (GFunc) mime_info_cache_dir_free, NULL); g_list_free (cache->dirs); g_hash_table_destroy (cache->global_defaults_cache); g_free (cache); } /** * mime_info_cache_reload: * @dir: directory path which needs reloading. * * Reload the mime information for the @dir. */ static void mime_info_cache_reload (const char *dir) { /* FIXME: just reload the dir that needs reloading, * don't blow the whole cache */ if (mime_info_cache != NULL) { G_LOCK (mime_info_cache); mime_info_cache_free (mime_info_cache); mime_info_cache = NULL; G_UNLOCK (mime_info_cache); } } static GList * append_desktop_entry (GList *list, const char *desktop_entry, GList *removed_entries) { /* Add if not already in list, and valid */ if (!g_list_find_custom (list, desktop_entry, (GCompareFunc) strcmp) && !g_list_find_custom (removed_entries, desktop_entry, (GCompareFunc) strcmp)) list = g_list_prepend (list, g_strdup (desktop_entry)); return list; } /** * get_all_desktop_entries_for_mime_type: * @mime_type: a mime type. * * Returns all the desktop ids for @mime_type. The desktop files * are listed in an order so that default applications are listed before * non-default ones, and handlers for inherited mimetypes are listed * after the base ones. * * Return value: a #GList containing the desktop ids which claim * to handle @mime_type. */ static GList * get_all_desktop_entries_for_mime_type (const char *base_mime_type) { GList *desktop_entries, *removed_entries, *list, *dir_list, *tmp; MimeInfoCacheDir *dir; char *mime_type; char **mime_types; char **default_entries; char **removed_associations; int i, j, k; GPtrArray *array; char **anc; mime_info_cache_init (); /* collect all ancestors */ mime_types = _g_unix_content_type_get_parents (base_mime_type); array = g_ptr_array_new (); for (i = 0; mime_types[i]; i++) g_ptr_array_add (array, mime_types[i]); g_free (mime_types); for (i = 0; i < array->len; i++) { anc = _g_unix_content_type_get_parents (g_ptr_array_index (array, i)); for (j = 0; anc[j]; j++) { for (k = 0; k < array->len; k++) { if (strcmp (anc[j], g_ptr_array_index (array, k)) == 0) break; } if (k == array->len) /* not found */ g_ptr_array_add (array, g_strdup (anc[j])); } g_strfreev (anc); } g_ptr_array_add (array, NULL); mime_types = (char **)g_ptr_array_free (array, FALSE); G_LOCK (mime_info_cache); removed_entries = NULL; desktop_entries = NULL; for (i = 0; mime_types[i] != NULL; i++) { mime_type = mime_types[i]; /* Go through all apps listed as defaults */ for (dir_list = mime_info_cache->dirs; dir_list != NULL; dir_list = dir_list->next) { dir = dir_list->data; /* First added associations from mimeapps.list */ default_entries = g_hash_table_lookup (dir->mimeapps_list_added_map, mime_type); for (j = 0; default_entries != NULL && default_entries[j] != NULL; j++) desktop_entries = append_desktop_entry (desktop_entries, default_entries[j], removed_entries); /* Then removed associations from mimeapps.list */ removed_associations = g_hash_table_lookup (dir->mimeapps_list_removed_map, mime_type); for (j = 0; removed_associations != NULL && removed_associations[j] != NULL; j++) removed_entries = append_desktop_entry (removed_entries, removed_associations[j], NULL); /* Then system defaults (or old per-user config) (using removed associations from this dir or earlier) */ default_entries = g_hash_table_lookup (dir->defaults_list_map, mime_type); for (j = 0; default_entries != NULL && default_entries[j] != NULL; j++) desktop_entries = append_desktop_entry (desktop_entries, default_entries[j], removed_entries); } /* Go through all entries that support the mimetype */ for (dir_list = mime_info_cache->dirs; dir_list != NULL; dir_list = dir_list->next) { dir = dir_list->data; list = g_hash_table_lookup (dir->mime_info_cache_map, mime_type); for (tmp = list; tmp != NULL; tmp = tmp->next) desktop_entries = append_desktop_entry (desktop_entries, tmp->data, removed_entries); } } G_UNLOCK (mime_info_cache); g_strfreev (mime_types); g_list_free (removed_entries); desktop_entries = g_list_reverse (desktop_entries); return desktop_entries; } /* GDesktopAppInfoLookup interface: */ static void g_desktop_app_info_lookup_base_init (gpointer g_class); static void g_desktop_app_info_lookup_class_init (gpointer g_class, gpointer class_data); GType g_desktop_app_info_lookup_get_type (void) { static volatile gsize g_define_type_id__volatile = 0; if (g_once_init_enter (&g_define_type_id__volatile)) { const GTypeInfo desktop_app_info_lookup_info = { sizeof (GDesktopAppInfoLookupIface), /* class_size */ g_desktop_app_info_lookup_base_init, /* base_init */ NULL, /* base_finalize */ g_desktop_app_info_lookup_class_init, NULL, /* class_finalize */ NULL, /* class_data */ 0, 0, /* n_preallocs */ NULL }; GType g_define_type_id = g_type_register_static (G_TYPE_INTERFACE, I_("GDesktopAppInfoLookup"), &desktop_app_info_lookup_info, 0); g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_OBJECT); g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); } return g_define_type_id__volatile; } static void g_desktop_app_info_lookup_class_init (gpointer g_class, gpointer class_data) { } static void g_desktop_app_info_lookup_base_init (gpointer g_class) { } /** * 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: #GAppInfo for given @uri_scheme or %NULL on error. */ 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); } #define __G_DESKTOP_APP_INFO_C__ #include "gioaliasdef.c"