Removed code for trying to handle URIs.
[rox-filer.git] / ROX-Filer / src / run.c
blob6e7ead8c4e5f4eb2b2499994d3dfe1c1649ba4ce
1 /*
2 * ROX-Filer, filer for the ROX desktop project
3 * Copyright (C) 2006, Thomas Leonard and others (see changelog for details).
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the Free
7 * Software Foundation; either version 2 of the License, or (at your option)
8 * any later version.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
17 * Place, Suite 330, Boston, MA 02111-1307 USA
20 /* run.c */
22 #include "config.h"
24 #include <gio/gio.h>
25 #include <errno.h>
26 #include <string.h>
27 #include <sys/param.h>
29 #include "global.h"
31 #include "run.h"
32 #include "support.h"
33 #include "gui_support.h"
34 #include "filer.h"
35 #include "display.h"
36 #include "main.h"
37 #include "type.h"
38 #include "dir.h"
39 #include "diritem.h"
40 #include "action.h"
41 #include "icon.h"
42 #include "choices.h"
44 /* Static prototypes */
45 static void write_data(gpointer data, gint fd, GdkInputCondition cond);
46 static gboolean follow_symlink(GFile *path,
47 FilerWindow *filer_window,
48 FilerWindow *src_window);
49 static gboolean open_file(GFile *path, MIME_type *type);
50 static void open_mountpoint(GFile *full_path, DirItem *item,
51 FilerWindow *filer_window, FilerWindow *src_window,
52 gboolean edit);
53 static gboolean run_desktop(const char *full_path,
54 const char **args, const char *dir);
55 static gboolean type_open(GFile *path, MIME_type *type);
57 typedef struct _PipedData PipedData;
59 struct _PipedData
61 guchar *data;
62 gint tag;
63 gulong sent;
64 gulong length;
68 /****************************************************************
69 * EXTERNAL INTERFACE *
70 ****************************************************************/
73 /* An application has been double-clicked (or run in some other way) */
74 void run_app(const char *path)
76 GString *apprun;
77 const char *argv[] = {NULL, NULL};
79 apprun = g_string_new(path);
80 argv[0] = g_string_append(apprun, "/AppRun")->str;
82 rox_spawn(home_dir, argv);
84 g_string_free(apprun, TRUE);
87 /* Execute this program, passing all the URIs in the list as arguments.
88 * URIs that are files on the local machine will be passed as simple
89 * pathnames. The uri_list should be freed after this function returns.
91 void run_with_files(const char *path, GList *uri_list)
93 const char **argv;
94 int argc = 0, i;
95 struct stat info;
96 MIME_type *type;
98 if (stat(path, &info))
100 delayed_error(_("Program %s not found - deleted?"), path);
101 return;
104 argv = g_malloc(sizeof(char *) * (g_list_length(uri_list) + 2));
106 if (S_ISDIR(info.st_mode))
107 argv[argc++] = make_path(path, "AppRun");
108 else
109 argv[argc++] = path;
111 while (uri_list)
113 const EscapedPath *uri = uri_list->data;
114 char *local;
116 local = get_local_path(uri);
117 if (local)
118 argv[argc++] = local;
119 else
120 argv[argc++] = unescape_uri(uri);
121 uri_list = uri_list->next;
124 argv[argc++] = NULL;
126 type = type_from_path(argv[0]);
127 if (type && type == application_x_desktop)
129 run_desktop(argv[0], argv + 1, home_dir);
131 else
133 rox_spawn(home_dir, argv);
136 for (i = 1; i < argc; i++)
137 g_free((gchar *) argv[i]);
138 g_free(argv);
141 /* Run the program as '<path> -', piping the data to it via stdin.
142 * You can g_free() the data as soon as this returns.
144 void run_with_data(const char *path, gpointer data, gulong length)
146 const char *argv[] = {NULL, "-", NULL};
147 struct stat info;
148 int fds[2];
149 PipedData *pd;
151 if (stat(path, &info))
153 delayed_error(_("Program %s not found - deleted?"), path);
154 return;
157 if (S_ISDIR(info.st_mode))
158 argv[0] = make_path(path, "AppRun");
159 else
160 argv[0] = path;
162 if (pipe(fds))
164 delayed_error("pipe: %s", g_strerror(errno));
165 return;
167 close_on_exec(fds[1], TRUE);
168 close_on_exec(fds[0], TRUE);
170 switch (fork())
172 case -1:
173 delayed_error("fork: %s", g_strerror(errno));
174 close(fds[1]);
175 break;
176 case 0:
177 /* We are the child */
178 chdir(home_dir);
179 if (dup2(fds[0], 0) == -1)
180 g_warning("dup2() failed: %s\n",
181 g_strerror(errno));
182 else
184 close_on_exec(0, FALSE);
185 if (execv(argv[0], (char **) argv))
186 g_warning("execv(%s) failed: %s\n",
187 argv[0], g_strerror(errno));
189 _exit(1);
190 default:
191 /* We are the parent */
192 set_blocking(fds[1], FALSE);
193 pd = g_new(PipedData, 1);
194 pd->data = g_malloc(length);
195 memcpy(pd->data, data, length);
196 pd->length = length;
197 pd->sent = 0;
198 pd->tag = gdk_input_add_full(fds[1], GDK_INPUT_WRITE,
199 write_data, pd, NULL);
200 break;
203 close(fds[0]);
206 /* Splits args into an argument vector, and runs the program. Must be
207 * executable.
209 void run_with_args(const char *path, DirItem *item, const char *args)
211 GError *error = NULL;
212 gchar **argv = NULL;
213 int n_args = 0;
215 if (item->base_type != TYPE_DIRECTORY && item->base_type != TYPE_FILE)
217 delayed_error("Arguments (%s) given for non-executable item %s",
218 args, path);
219 return;
222 if (!g_shell_parse_argv(args, &n_args, &argv, &error))
224 delayed_error("Failed to parse argument string '%s':\n%s",
225 args, error->message);
226 g_error_free(error);
227 return;
230 g_return_if_fail(argv != NULL);
231 g_return_if_fail(error == NULL);
233 argv = g_realloc(argv, (n_args + 2) * sizeof(gchar *));
234 memmove(argv + 1, argv, (n_args + 1) * sizeof(gchar *));
236 if (item->base_type == TYPE_DIRECTORY)
237 argv[0] = g_strconcat(path, "/AppRun", NULL);
238 else
239 argv[0] = g_strdup(path);
241 rox_spawn(home_dir, (const gchar **) argv);
243 g_strfreev(argv);
246 /* Load a file, open a directory or run an application. Or, if 'edit' is set:
247 * edit a file, open an application, follow a symlink or mount a device.
249 * filer_window is the window to use for displaying a directory.
250 * NULL will always use a new directory when needed.
251 * src_window is the window to copy options from, or NULL.
253 * Returns TRUE on success.
255 gboolean run_diritem(const guchar *full_path,
256 DirItem *item,
257 FilerWindow *filer_window,
258 FilerWindow *src_window,
259 gboolean edit)
261 GFile *gfile;
262 gboolean retval;
264 gfile = g_file_new_for_path(full_path);
265 retval = run_diritem_gfile(gfile, item, filer_window, src_window, edit);
266 g_object_unref(gfile);
268 return retval;
271 gboolean run_diritem_gfile(GFile *path,
272 DirItem *item,
273 FilerWindow *filer_window,
274 FilerWindow *src_window,
275 gboolean edit)
277 const char *error_msg;
278 char *uri;
280 if (item->flags & ITEM_FLAG_SYMLINK && edit)
281 return follow_symlink(path, filer_window, src_window);
283 switch (item->base_type)
285 case TYPE_DIRECTORY:
286 if (item->flags & ITEM_FLAG_APPDIR && !edit)
288 char *pathname;
289 pathname = g_file_get_path(path);
290 if (!pathname)
292 delayed_error(_("Can't run a remote application!"));
293 return FALSE;
295 run_app(pathname);
296 g_free(pathname);
297 return TRUE;
300 if (item->flags & ITEM_FLAG_MOUNT_POINT)
301 open_mountpoint(path, item, filer_window, src_window, edit);
302 else if (filer_window)
303 filer_change_to_gfile(filer_window, path, NULL);
304 else
305 filer_opendir_gfile(path, src_window, NULL);
306 return TRUE;
307 case TYPE_FILE:
308 if (EXECUTABLE_FILE(item) && !edit)
310 gboolean retval;
311 const char *argv[] = {NULL, NULL};
312 char *arg;
313 guchar *dir = filer_window
314 ? filer_window->sym_path
315 : NULL;
317 arg = path_or_uri(path);
319 if (item->mime_type == application_x_desktop)
321 retval = run_desktop(arg, NULL, dir);
323 else
325 argv[0] = arg;
326 retval = rox_spawn(dir, argv) != 0;
329 g_free(arg);
331 return retval;
334 return open_file(path, edit ? text_plain : item->mime_type);
335 case TYPE_ERROR:
336 error_msg = _("File doesn't exist, or I can't access it: %s");
337 break;
338 default:
339 error_msg = _("I don't know how to open '%s'");
340 break;
343 uri = path_or_uri(path);
344 delayed_error(error_msg, uri);
345 g_free(uri);
347 return FALSE;
350 /* Attempt to open this item */
351 gboolean run_by_path(const guchar *full_path)
353 gboolean retval;
354 DirItem *item;
356 /* XXX: Loads an image - wasteful */
357 item = diritem_new("");
358 diritem_restat(full_path, item, NULL);
359 retval = run_diritem(full_path, item, NULL, NULL, FALSE);
360 diritem_free(item);
362 return retval;
365 /* Attempt to open this item */
366 gboolean run_by_gfile(GFile *path)
368 gboolean retval;
369 DirItem *item;
371 /* XXX: Loads an image - wasteful */
372 item = diritem_new("");
373 diritem_restat_gfile(path, item);
374 retval = run_diritem_gfile(path, item, NULL, NULL, FALSE);
375 diritem_free(item);
377 return retval;
380 /* Convert uri to path and call run_by_path() */
381 gboolean run_by_uri(const gchar *uri, gchar **errmsg)
383 gboolean retval;
384 GFile *gfile;
386 gfile = g_file_new_for_uri(uri);
387 retval = run_by_gfile(gfile);
388 g_object_unref(gfile);
390 if(!retval)
391 *errmsg=g_strdup_printf(_("%s not accessable"), uri);
393 return retval;
396 /* Open dir/Help, or show a message if missing */
397 void show_help_files(const char *dir)
399 const char *help_dir;
401 help_dir = make_path(dir, "Help");
403 if (file_exists(help_dir))
404 filer_opendir(help_dir, NULL, NULL);
405 else
406 info_message(
407 _("Application:\n"
408 "This is an application directory - you can "
409 "run it as a program, or open it (hold down "
410 "Shift while you open it). Most applications provide "
411 "their own help here, but this one doesn't."));
414 /* Open a directory viewer showing this file, and wink it */
415 void open_to_show(const guchar *path)
417 FilerWindow *new;
418 guchar *dir, *slash;
420 g_return_if_fail(path != NULL);
422 dir = g_strdup(path);
423 slash = strrchr(dir, '/');
424 if (slash == dir || !slash)
426 /* Item in the root (or root itself!) */
427 new = filer_opendir("/", NULL, NULL);
428 if (new && dir[1])
429 display_set_autoselect(new, dir + 1);
431 else
433 *slash = '\0';
434 new = filer_opendir(dir, NULL, NULL);
435 if (new)
437 if (slash[1] == '.')
438 display_set_hidden(new, TRUE);
439 display_set_autoselect(new, slash + 1);
443 g_free(dir);
446 /* Invoked using -x, this indicates that the filesystem has been modified
447 * and we should look at this item again.
449 void examine(const guchar *path)
451 struct stat info;
453 if (mc_stat(path, &info) != 0)
455 /* Deleted? Do a paranoid update of everything... */
456 filer_check_mounted(path);
458 else
460 /* Update directory containing this item... */
461 dir_check_this(path);
463 /* If this is itself a directory then rescan its contents... */
464 if (S_ISDIR(info.st_mode))
465 refresh_dirs(path);
467 /* If it's on the pinboard or a panel, update the icon... */
468 icons_may_update(path);
472 /****************************************************************
473 * INTERNAL FUNCTIONS *
474 ****************************************************************/
477 static void write_data(gpointer data, gint fd, GdkInputCondition cond)
479 PipedData *pd = (PipedData *) data;
481 while (pd->sent < pd->length)
483 int sent;
485 sent = write(fd, pd->data + pd->sent, pd->length - pd->sent);
487 if (sent < 0)
489 if (errno == EAGAIN)
490 return;
491 delayed_error(_("Could not send data to program: %s"),
492 g_strerror(errno));
493 goto finish;
496 pd->sent += sent;
499 finish:
500 g_source_remove(pd->tag);
501 g_free(pd->data);
502 g_free(pd);
503 close(fd);
506 static char *g_file_readlink(GFile *symlink, GError **error)
508 GFileInfo *info;
509 char *target;
511 info = g_file_query_info(symlink, G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL, error);
512 if (*error)
513 return NULL;
515 target = (char *) g_file_info_get_symlink_target(info);
516 if (target)
517 target = g_strdup(target);
519 g_object_unref(info);
521 return target;
524 /* Follow the link 'full_path' and display it in filer_window, or a
525 * new window if that is NULL.
527 static gboolean follow_symlink(GFile *path,
528 FilerWindow *filer_window,
529 FilerWindow *src_window)
531 char *target, *leafname;
532 GFile *resolved, *new_dir;
533 GError *error = NULL;
535 target = g_file_readlink(path, &error);
537 if (error)
539 delayed_error(_("Could not read link: %s"), error->message);
540 g_error_free(error);
541 return FALSE;
544 resolved = g_file_resolve_relative_path(path, target);
545 g_free(target);
546 target = NULL;
548 new_dir = g_file_get_parent(resolved);
549 leafname = g_file_get_basename(resolved);
550 g_object_unref(resolved);
552 if (filer_window)
553 filer_change_to(filer_window, g_file_get_path(new_dir), leafname); /* XXX : free */
554 else
556 FilerWindow *new;
558 new = filer_opendir_gfile(new_dir, src_window, NULL);
559 if (new)
560 display_set_autoselect(new, leafname);
563 g_object_unref(new_dir);
564 g_free(leafname);
566 return TRUE;
569 /* Load this file into an appropriate editor */
570 static gboolean open_file(GFile *path, MIME_type *type)
572 g_return_val_if_fail(type != NULL, FALSE);
574 if (type_open(path, type))
575 return TRUE;
577 report_error(
578 _("No run action specified for files of this type (%s/%s) - "
579 "you can set a run action by choosing `Set Run Action' "
580 "from the File menu, or you can just drag the file to an "
581 "application.%s"),
582 type->media_type,
583 type->subtype,
584 type->executable ? _("\n\nNote: If this is a computer program which "
585 "you want to run, you need to set the execute bit "
586 "by choosing Permissions from the File menu.")
587 : "");
589 return FALSE;
592 /* Called like run_diritem, when a mount-point is opened */
593 static void open_mountpoint(GFile *full_path, DirItem *item,
594 FilerWindow *filer_window, FilerWindow *src_window,
595 gboolean edit)
597 gboolean mounted = (item->flags & ITEM_FLAG_MOUNTED) != 0;
599 if (mounted == edit)
601 GList *paths;
602 char *path;
604 path = g_file_get_path(full_path);
605 if (!path)
607 delayed_error(_("Can't mount/unmount on remote filesystems yet; sorry!"));
608 return;
611 paths = g_list_prepend(NULL, (gpointer) path);
612 action_mount(paths, filer_window == NULL, !mounted, -1);
613 g_list_free(paths);
614 if (filer_window && !mounted)
615 filer_change_to_gfile(filer_window, full_path, NULL);
617 else
619 if (filer_window)
620 filer_change_to_gfile(filer_window, full_path, NULL);
621 else
622 filer_opendir_gfile(full_path, src_window, NULL);
626 /* full_path is a .desktop file. Execute the application, using the Exec line
627 * from the file.
628 * Returns TRUE on success.
630 static gboolean run_desktop(const char *full_path,
631 const char **args,
632 const char *dir)
634 GError *error = NULL;
635 char *exec = NULL;
636 char *terminal = NULL;
637 char *req_dir = NULL;
638 gint argc = 0;
639 gchar **argv = NULL;
640 GPtrArray *expanded = NULL;
641 gboolean inserted_args = FALSE;
642 int i;
643 gboolean success = FALSE;
645 get_values_from_desktop_file(full_path,
646 &error,
647 "Desktop Entry", "Exec", &exec,
648 "Desktop Entry", "Terminal", &terminal,
649 "Desktop Entry", "Path", &req_dir,
650 NULL);
651 if (error)
653 delayed_error("Failed to parse .desktop file '%s':\n%s",
654 full_path, error->message);
655 goto err;
658 if (!exec)
660 delayed_error("Can't find Exec command in .desktop file '%s'",
661 full_path);
662 goto err;
665 if (!g_shell_parse_argv(exec, &argc, &argv, &error))
667 delayed_error("Failed to parse '%s' from '%s':\n%s",
668 exec, full_path, error->message);
669 goto err;
672 expanded = g_ptr_array_new();
674 if (terminal && g_strcasecmp(terminal, "true") == 0) {
675 g_ptr_array_add(expanded, g_strdup("xterm"));
676 g_ptr_array_add(expanded, g_strdup("-e"));
679 for (i = 0; i < argc; i++)
681 const char *src = argv[i];
683 if (src[0] == '%' && src[1] != '\0' && src[2] == '\0')
685 /* We should treat these four differently. */
686 if (src[1] == 'f' || src[1] == 'F' ||
687 src[1] == 'u' || src[1] == 'U')
689 int j;
690 for (j = 0; args && args[j]; j++)
691 g_ptr_array_add(expanded, g_strdup(args[j]));
692 inserted_args = TRUE;
694 else
696 delayed_error("Unsupported escape character in '%s' in '%s'",
697 exec, full_path);
698 goto err;
701 else
703 g_ptr_array_add(expanded, g_strdup(src));
706 if (!inserted_args)
708 /* Many .desktop files don't include a % expansion. In that case
709 * add the arguments here.
711 int j;
712 for (j = 0; args && args[j]; j++)
713 g_ptr_array_add(expanded, g_strdup(args[j]));
715 g_ptr_array_add(expanded, NULL);
717 if(req_dir)
718 dir = req_dir;
720 success = rox_spawn(dir, (const gchar **) expanded->pdata);
721 err:
722 if (error != NULL)
723 g_error_free(error);
724 if (exec != NULL)
725 g_free(exec);
726 if (terminal != NULL)
727 g_free(terminal);
728 if (req_dir != NULL)
729 g_free(req_dir);
730 if (argv != NULL)
731 g_strfreev(argv);
732 if (expanded != NULL)
734 g_ptr_array_foreach(expanded, (GFunc) g_free, NULL);
735 g_ptr_array_free(expanded, TRUE);
738 return success;
741 /* Returns FALSE is no run action is set for this type. */
742 static gboolean type_open(GFile *path, MIME_type *type)
744 gchar *argv[] = {NULL, NULL, NULL};
745 char *open;
746 struct stat info;
748 open = handler_for(type);
749 if (!open)
750 return FALSE;
752 if (stat(open, &info))
754 report_error("stat(%s): %s", open, g_strerror(errno));
755 g_free(open);
756 return TRUE;
759 if (info.st_mode & S_IWOTH)
761 gchar *choices_dir;
762 GList *paths;
764 report_error(_("Executable '%s' is world-writeable! Refusing "
765 "to run. Please change the permissions now (this "
766 "problem may have been caused by a bug in earlier "
767 "versions of the filer).\n\n"
768 "Having (non-symlink) run actions world-writeable "
769 "means that other people who use your computer can "
770 "replace your run actions with malicious versions.\n\n"
771 "If you trust everyone who could write to these files "
772 "then you needn't worry. Otherwise, you should check, "
773 "or even just delete, all the existing run actions."),
774 open);
775 choices_dir = g_path_get_dirname(open);
776 paths = g_list_append(NULL, choices_dir);
777 action_chmod(paths, TRUE, _("go-w (Fix security problem)"));
778 g_free(choices_dir);
779 g_list_free(paths);
780 g_free(open);
781 return TRUE;
784 argv[1] = path_or_uri(path);
786 if (S_ISDIR(info.st_mode))
788 argv[0] = g_strconcat(open, "/AppRun", NULL);
789 rox_spawn(home_dir, (const gchar **) argv);
791 else if (type_get_type(open) == application_x_desktop)
793 argv[0] = open;
794 run_desktop(open, (const char **) (argv + 1), home_dir);
796 else
798 argv[0] = open;
799 rox_spawn(home_dir, (const gchar **) argv);
802 g_free(argv[1]);
804 if (argv[0] != open)
805 g_free(argv[0]);
807 g_free(open);
809 return TRUE;