1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 *
18 * Author: Alexander Larsson <alexl@redhat.com>
19 */
20
21 #include "config.h"
22
23 #include <sys/types.h>
24 #include <sys/stat.h>
25 #include <string.h>
26 #include <errno.h>
27 #include <fcntl.h>
28 #if G_OS_UNIX
29 #include <dirent.h>
30 #include <unistd.h>
31 #endif
32
33 #if HAVE_SYS_STATFS_H
34 #include <sys/statfs.h>
35 #endif
36 #if HAVE_SYS_STATVFS_H
37 #include <sys/statvfs.h>
38 #endif
39 #if HAVE_SYS_VFS_H
40 #include <sys/vfs.h>
41 #elif HAVE_SYS_MOUNT_H
42 #if HAVE_SYS_PARAM_H
43 #include <sys/param.h>
44 #endif
45 #include <sys/mount.h>
46 #endif
47
48 #ifndef O_BINARY
49 #define O_BINARY 0
50 #endif
51
52 #include "gfileattribute.h"
53 #include "glocalfile.h"
54 #include "glocalfileprivate.h"
55 #include "glocalfileinfo.h"
56 #include "glocalfileenumerator.h"
57 #include "glocalfileinputstream.h"
58 #include "glocalfileoutputstream.h"
59 #include "glocalfileiostream.h"
60 #include "glocalfilemonitor.h"
61 #include "gmountprivate.h"
62 #include "gunixmounts.h"
63 #include "gioerror.h"
64 #include <glib/gstdio.h>
65 #include <glib/gstdioprivate.h>
66 #include "glibintl.h"
67 #ifdef G_OS_UNIX
68 #include "glib-unix.h"
69 #include "gportalsupport.h"
70 #include "gtrashportal.h"
71 #endif
72
73 #include "glib-private.h"
74
75 #ifdef G_OS_WIN32
76 #include <windows.h>
77 #include <io.h>
78 #include <direct.h>
79
80 #ifndef FILE_READ_ONLY_VOLUME
81 #define FILE_READ_ONLY_VOLUME 0x00080000
82 #endif
83
84 #ifndef S_ISDIR
85 #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
86 #endif
87 #ifndef S_ISLNK
88 #define S_ISLNK(m) (0)
89 #endif
90
91 #ifndef ECANCELED
92 #define ECANCELED 105
93 #endif
94 #endif
95
96
97 static void g_local_file_file_iface_init (GFileIface *iface);
98
99 static GFileAttributeInfoList *local_writable_attributes = NULL;
100 static /* GFileAttributeInfoList * */ gsize local_writable_namespaces = 0;
101
102 struct _GLocalFile
103 {
104 GObject parent_instance;
105
106 char *filename;
107 };
108
109 #define g_local_file_get_type _g_local_file_get_type
110 G_DEFINE_TYPE_WITH_CODE (GLocalFile, g_local_file, G_TYPE_OBJECT,
111 G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
112 g_local_file_file_iface_init))
113
114 static char *find_mountpoint_for (const char *file, dev_t dev, gboolean resolve_basename_symlink);
115
116 static void
g_local_file_finalize(GObject * object)117 g_local_file_finalize (GObject *object)
118 {
119 GLocalFile *local;
120
121 local = G_LOCAL_FILE (object);
122
123 g_free (local->filename);
124
125 G_OBJECT_CLASS (g_local_file_parent_class)->finalize (object);
126 }
127
128 static void
g_local_file_class_init(GLocalFileClass * klass)129 g_local_file_class_init (GLocalFileClass *klass)
130 {
131 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
132 GFileAttributeInfoList *list;
133
134 gobject_class->finalize = g_local_file_finalize;
135
136 /* Set up attribute lists */
137
138 /* Writable attributes: */
139
140 list = g_file_attribute_info_list_new ();
141
142 g_file_attribute_info_list_add (list,
143 G_FILE_ATTRIBUTE_UNIX_MODE,
144 G_FILE_ATTRIBUTE_TYPE_UINT32,
145 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
146 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
147
148 #ifdef G_OS_UNIX
149 g_file_attribute_info_list_add (list,
150 G_FILE_ATTRIBUTE_UNIX_UID,
151 G_FILE_ATTRIBUTE_TYPE_UINT32,
152 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
153 g_file_attribute_info_list_add (list,
154 G_FILE_ATTRIBUTE_UNIX_GID,
155 G_FILE_ATTRIBUTE_TYPE_UINT32,
156 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
157 #endif
158
159 #ifdef HAVE_SYMLINK
160 g_file_attribute_info_list_add (list,
161 G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET,
162 G_FILE_ATTRIBUTE_TYPE_BYTE_STRING,
163 0);
164 #endif
165
166 #ifdef HAVE_UTIMES
167 g_file_attribute_info_list_add (list,
168 G_FILE_ATTRIBUTE_TIME_MODIFIED,
169 G_FILE_ATTRIBUTE_TYPE_UINT64,
170 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
171 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
172 g_file_attribute_info_list_add (list,
173 G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC,
174 G_FILE_ATTRIBUTE_TYPE_UINT32,
175 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
176 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
177 /* When copying, the target file is accessed. Replicating
178 * the source access time does not make sense in this case.
179 */
180 g_file_attribute_info_list_add (list,
181 G_FILE_ATTRIBUTE_TIME_ACCESS,
182 G_FILE_ATTRIBUTE_TYPE_UINT64,
183 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
184 g_file_attribute_info_list_add (list,
185 G_FILE_ATTRIBUTE_TIME_ACCESS_USEC,
186 G_FILE_ATTRIBUTE_TYPE_UINT32,
187 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
188 #endif
189
190 local_writable_attributes = list;
191 }
192
193 static void
g_local_file_init(GLocalFile * local)194 g_local_file_init (GLocalFile *local)
195 {
196 }
197
198 const char *
_g_local_file_get_filename(GLocalFile * file)199 _g_local_file_get_filename (GLocalFile *file)
200 {
201 return file->filename;
202 }
203
204 GFile *
_g_local_file_new(const char * filename)205 _g_local_file_new (const char *filename)
206 {
207 GLocalFile *local;
208
209 local = g_object_new (G_TYPE_LOCAL_FILE, NULL);
210 local->filename = g_canonicalize_filename (filename, NULL);
211
212 return G_FILE (local);
213 }
214
215 /*< internal >
216 * g_local_file_new_from_dirname_and_basename:
217 * @dirname: an absolute, canonical directory name
218 * @basename: the name of a child inside @dirname
219 *
220 * Creates a #GFile from @dirname and @basename.
221 *
222 * This is more efficient than pasting the fields together for yourself
223 * and creating a #GFile from the result, and also more efficient than
224 * creating a #GFile for the dirname and using g_file_get_child().
225 *
226 * @dirname must be canonical, as per GLocalFile's opinion of what
227 * canonical means. This means that you should only pass strings that
228 * were returned by _g_local_file_get_filename().
229 *
230 * Returns: a #GFile
231 */
232 GFile *
g_local_file_new_from_dirname_and_basename(const gchar * dirname,const gchar * basename)233 g_local_file_new_from_dirname_and_basename (const gchar *dirname,
234 const gchar *basename)
235 {
236 GLocalFile *local;
237
238 g_return_val_if_fail (dirname != NULL, NULL);
239 g_return_val_if_fail (basename && basename[0] && !strchr (basename, '/'), NULL);
240
241 local = g_object_new (G_TYPE_LOCAL_FILE, NULL);
242 local->filename = g_build_filename (dirname, basename, NULL);
243
244 return G_FILE (local);
245 }
246
247 static gboolean
g_local_file_is_native(GFile * file)248 g_local_file_is_native (GFile *file)
249 {
250 return TRUE;
251 }
252
253 static gboolean
g_local_file_has_uri_scheme(GFile * file,const char * uri_scheme)254 g_local_file_has_uri_scheme (GFile *file,
255 const char *uri_scheme)
256 {
257 return g_ascii_strcasecmp (uri_scheme, "file") == 0;
258 }
259
260 static char *
g_local_file_get_uri_scheme(GFile * file)261 g_local_file_get_uri_scheme (GFile *file)
262 {
263 return g_strdup ("file");
264 }
265
266 static char *
g_local_file_get_basename(GFile * file)267 g_local_file_get_basename (GFile *file)
268 {
269 return g_path_get_basename (G_LOCAL_FILE (file)->filename);
270 }
271
272 static char *
g_local_file_get_path(GFile * file)273 g_local_file_get_path (GFile *file)
274 {
275 return g_strdup (G_LOCAL_FILE (file)->filename);
276 }
277
278 static char *
g_local_file_get_uri(GFile * file)279 g_local_file_get_uri (GFile *file)
280 {
281 return g_filename_to_uri (G_LOCAL_FILE (file)->filename, NULL, NULL);
282 }
283
284 static gboolean
get_filename_charset(const gchar ** filename_charset)285 get_filename_charset (const gchar **filename_charset)
286 {
287 const gchar **charsets;
288 gboolean is_utf8;
289
290 is_utf8 = g_get_filename_charsets (&charsets);
291
292 if (filename_charset)
293 *filename_charset = charsets[0];
294
295 return is_utf8;
296 }
297
298 static gboolean
name_is_valid_for_display(const char * string,gboolean is_valid_utf8)299 name_is_valid_for_display (const char *string,
300 gboolean is_valid_utf8)
301 {
302 char c;
303
304 if (!is_valid_utf8 &&
305 !g_utf8_validate (string, -1, NULL))
306 return FALSE;
307
308 while ((c = *string++) != 0)
309 {
310 if (g_ascii_iscntrl (c))
311 return FALSE;
312 }
313
314 return TRUE;
315 }
316
317 static char *
g_local_file_get_parse_name(GFile * file)318 g_local_file_get_parse_name (GFile *file)
319 {
320 const char *filename;
321 char *parse_name;
322 const gchar *charset;
323 char *utf8_filename;
324 char *roundtripped_filename;
325 gboolean free_utf8_filename;
326 gboolean is_valid_utf8;
327 char *escaped_path;
328
329 filename = G_LOCAL_FILE (file)->filename;
330 if (get_filename_charset (&charset))
331 {
332 utf8_filename = (char *)filename;
333 free_utf8_filename = FALSE;
334 is_valid_utf8 = FALSE; /* Can't guarantee this */
335 }
336 else
337 {
338 utf8_filename = g_convert (filename, -1,
339 "UTF-8", charset, NULL, NULL, NULL);
340 free_utf8_filename = TRUE;
341 is_valid_utf8 = TRUE;
342
343 if (utf8_filename != NULL)
344 {
345 /* Make sure we can roundtrip: */
346 roundtripped_filename = g_convert (utf8_filename, -1,
347 charset, "UTF-8", NULL, NULL, NULL);
348
349 if (roundtripped_filename == NULL ||
350 strcmp (filename, roundtripped_filename) != 0)
351 {
352 g_free (utf8_filename);
353 utf8_filename = NULL;
354 }
355
356 g_free (roundtripped_filename);
357 }
358 }
359
360 if (utf8_filename != NULL &&
361 name_is_valid_for_display (utf8_filename, is_valid_utf8))
362 {
363 if (free_utf8_filename)
364 parse_name = utf8_filename;
365 else
366 parse_name = g_strdup (utf8_filename);
367 }
368 else
369 {
370 #ifdef G_OS_WIN32
371 char *dup_filename, *p, *backslash;
372
373 /* Turn backslashes into forward slashes like
374 * g_filename_to_uri() would do (but we can't use that because
375 * it doesn't output IRIs).
376 */
377 dup_filename = g_strdup (filename);
378 filename = p = dup_filename;
379
380 while ((backslash = strchr (p, '\\')) != NULL)
381 {
382 *backslash = '/';
383 p = backslash + 1;
384 }
385 #endif
386
387 escaped_path = g_uri_escape_string (filename,
388 G_URI_RESERVED_CHARS_ALLOWED_IN_PATH_ELEMENT "/",
389 TRUE);
390 parse_name = g_strconcat ("file://",
391 (*escaped_path != '/') ? "/" : "",
392 escaped_path,
393 NULL);
394
395 g_free (escaped_path);
396 #ifdef G_OS_WIN32
397 g_free (dup_filename);
398 #endif
399 if (free_utf8_filename)
400 g_free (utf8_filename);
401 }
402
403 return parse_name;
404 }
405
406 static GFile *
g_local_file_get_parent(GFile * file)407 g_local_file_get_parent (GFile *file)
408 {
409 GLocalFile *local = G_LOCAL_FILE (file);
410 const char *non_root;
411 char *dirname;
412 GFile *parent;
413
414 /* Check for root; local->filename is guaranteed to be absolute, so
415 * g_path_skip_root() should never return NULL. */
416 non_root = g_path_skip_root (local->filename);
417 g_assert (non_root != NULL);
418
419 if (*non_root == 0)
420 return NULL;
421
422 dirname = g_path_get_dirname (local->filename);
423 parent = _g_local_file_new (dirname);
424 g_free (dirname);
425 return parent;
426 }
427
428 static GFile *
g_local_file_dup(GFile * file)429 g_local_file_dup (GFile *file)
430 {
431 GLocalFile *local = G_LOCAL_FILE (file);
432
433 return _g_local_file_new (local->filename);
434 }
435
436 static guint
g_local_file_hash(GFile * file)437 g_local_file_hash (GFile *file)
438 {
439 GLocalFile *local = G_LOCAL_FILE (file);
440
441 return g_str_hash (local->filename);
442 }
443
444 static gboolean
g_local_file_equal(GFile * file1,GFile * file2)445 g_local_file_equal (GFile *file1,
446 GFile *file2)
447 {
448 GLocalFile *local1 = G_LOCAL_FILE (file1);
449 GLocalFile *local2 = G_LOCAL_FILE (file2);
450
451 return g_str_equal (local1->filename, local2->filename);
452 }
453
454 static const char *
match_prefix(const char * path,const char * prefix)455 match_prefix (const char *path,
456 const char *prefix)
457 {
458 int prefix_len;
459
460 prefix_len = strlen (prefix);
461 if (strncmp (path, prefix, prefix_len) != 0)
462 return NULL;
463
464 /* Handle the case where prefix is the root, so that
465 * the IS_DIR_SEPRARATOR check below works */
466 if (prefix_len > 0 &&
467 G_IS_DIR_SEPARATOR (prefix[prefix_len-1]))
468 prefix_len--;
469
470 return path + prefix_len;
471 }
472
473 static gboolean
g_local_file_prefix_matches(GFile * parent,GFile * descendant)474 g_local_file_prefix_matches (GFile *parent,
475 GFile *descendant)
476 {
477 GLocalFile *parent_local = G_LOCAL_FILE (parent);
478 GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
479 const char *remainder;
480
481 remainder = match_prefix (descendant_local->filename, parent_local->filename);
482 if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
483 return TRUE;
484 return FALSE;
485 }
486
487 static char *
g_local_file_get_relative_path(GFile * parent,GFile * descendant)488 g_local_file_get_relative_path (GFile *parent,
489 GFile *descendant)
490 {
491 GLocalFile *parent_local = G_LOCAL_FILE (parent);
492 GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
493 const char *remainder;
494
495 remainder = match_prefix (descendant_local->filename, parent_local->filename);
496
497 if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
498 return g_strdup (remainder + 1);
499 return NULL;
500 }
501
502 static GFile *
g_local_file_resolve_relative_path(GFile * file,const char * relative_path)503 g_local_file_resolve_relative_path (GFile *file,
504 const char *relative_path)
505 {
506 GLocalFile *local = G_LOCAL_FILE (file);
507 char *filename;
508 GFile *child;
509
510 if (g_path_is_absolute (relative_path))
511 return _g_local_file_new (relative_path);
512
513 filename = g_build_filename (local->filename, relative_path, NULL);
514 child = _g_local_file_new (filename);
515 g_free (filename);
516
517 return child;
518 }
519
520 static GFileEnumerator *
g_local_file_enumerate_children(GFile * file,const char * attributes,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)521 g_local_file_enumerate_children (GFile *file,
522 const char *attributes,
523 GFileQueryInfoFlags flags,
524 GCancellable *cancellable,
525 GError **error)
526 {
527 GLocalFile *local = G_LOCAL_FILE (file);
528 return _g_local_file_enumerator_new (local,
529 attributes, flags,
530 cancellable, error);
531 }
532
533 static GFile *
g_local_file_get_child_for_display_name(GFile * file,const char * display_name,GError ** error)534 g_local_file_get_child_for_display_name (GFile *file,
535 const char *display_name,
536 GError **error)
537 {
538 GFile *new_file;
539 char *basename;
540
541 basename = g_filename_from_utf8 (display_name, -1, NULL, NULL, NULL);
542 if (basename == NULL)
543 {
544 g_set_error (error, G_IO_ERROR,
545 G_IO_ERROR_INVALID_FILENAME,
546 _("Invalid filename %s"), display_name);
547 return NULL;
548 }
549
550 new_file = g_file_get_child (file, basename);
551 g_free (basename);
552
553 return new_file;
554 }
555
556 #if defined(USE_STATFS) && !defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
557 static const char *
get_fs_type(long f_type)558 get_fs_type (long f_type)
559 {
560 /* filesystem ids taken from linux manpage */
561 switch (f_type)
562 {
563 case 0xadf5:
564 return "adfs";
565 case 0x5346414f:
566 return "afs";
567 case 0x0187:
568 return "autofs";
569 case 0xADFF:
570 return "affs";
571 case 0x62646576:
572 return "bdevfs";
573 case 0x42465331:
574 return "befs";
575 case 0x1BADFACE:
576 return "bfs";
577 case 0x42494e4d:
578 return "binfmt_misc";
579 case 0x9123683E:
580 return "btrfs";
581 case 0x73727279:
582 return "btrfs_test_fs";
583 case 0x27e0eb:
584 return "cgroup";
585 case 0x63677270:
586 return "cgroup2";
587 case 0xFF534D42:
588 return "cifs";
589 case 0x73757245:
590 return "coda";
591 case 0x012FF7B7:
592 return "coh";
593 case 0x62656570:
594 return "configfs";
595 case 0x28cd3d45:
596 return "cramfs";
597 case 0x64626720:
598 return "debugfs";
599 case 0x1373:
600 return "devfs";
601 case 0x1cd1:
602 return "devpts";
603 case 0xf15f:
604 return "ecryptfs";
605 case 0xde5e81e4:
606 return "efivarfs";
607 case 0x00414A53:
608 return "efs";
609 case 0x137D:
610 return "ext";
611 case 0xEF51:
612 return "ext2";
613 case 0xEF53:
614 return "ext3/ext4";
615 case 0xF2F52010:
616 return "f2fs";
617 case 0x65735546:
618 return "fuse";
619 case 0x65735543:
620 return "fusectl";
621 case 0xBAD1DEA:
622 return "futexfs";
623 case 0x4244:
624 return "hfs";
625 case 0x00c0ffee:
626 return "hostfs";
627 case 0xF995E849:
628 return "hpfs";
629 case 0x958458f6:
630 return "hugetlbfs";
631 case 0x9660:
632 return "isofs";
633 case 0x72b6:
634 return "jffs2";
635 case 0x3153464a:
636 return "jfs";
637 case 0x137F:
638 return "minix";
639 case 0x138F:
640 return "minix2";
641 case 0x2468:
642 return "minix2";
643 case 0x2478:
644 return "minix22";
645 case 0x4d5a:
646 return "minix3";
647 case 0x19800202:
648 return "mqueue";
649 case 0x4d44:
650 return "msdos";
651 case 0x564c:
652 return "ncp";
653 case 0x6969:
654 return "nfs";
655 case 0x3434:
656 return "nilfs";
657 case 0x6e736673:
658 return "nsfs";
659 case 0x5346544e:
660 return "ntfs";
661 case 0x7461636f:
662 return "ocfs2";
663 case 0x9fa1:
664 return "openprom";
665 case 0x794c7630:
666 return "overlay";
667 case 0x50495045:
668 return "pipefs";
669 case 0x9fa0:
670 return "proc";
671 case 0x6165676C:
672 return "pstore";
673 case 0x002f:
674 return "qnx4";
675 case 0x68191122:
676 return "qnx6";
677 case 0x858458f6:
678 return "ramfs";
679 case 0x52654973:
680 return "reiserfs";
681 case 0x7275:
682 return "romfs";
683 case 0x67596969:
684 return "rpc_pipefs";
685 case 0x73636673:
686 return "securityfs";
687 case 0xf97cff8c:
688 return "selinuxfs";
689 case 0x43415d53:
690 return "smackfs";
691 case 0x517B:
692 return "smb";
693 case 0x534F434B:
694 return "sockfs";
695 case 0x73717368:
696 return "squashfs";
697 case 0x62656572:
698 return "sysfs";
699 case 0x012FF7B6:
700 return "sysv2";
701 case 0x012FF7B5:
702 return "sysv4";
703 case 0x01021994:
704 return "tmpfs";
705 case 0x74726163:
706 return "tracefs";
707 case 0x15013346:
708 return "udf";
709 case 0x00011954:
710 return "ufs";
711 case 0x9fa2:
712 return "usbdevice";
713 case 0x01021997:
714 return "v9fs";
715 case 0xa501FCF5:
716 return "vxfs";
717 case 0xabba1974:
718 return "xenfs";
719 case 0x012FF7B4:
720 return "xenix";
721 case 0x58465342:
722 return "xfs";
723 case 0x012FD16D:
724 return "xiafs";
725 case 0x52345362:
726 return "reiser4";
727 default:
728 return NULL;
729 }
730 }
731 #endif
732
733 #ifndef G_OS_WIN32
734
735 G_LOCK_DEFINE_STATIC(mount_info_hash);
736 static GHashTable *mount_info_hash = NULL;
737 static guint64 mount_info_hash_cache_time = 0;
738
739 typedef enum {
740 MOUNT_INFO_READONLY = 1<<0
741 } MountInfo;
742
743 static gboolean
device_equal(gconstpointer v1,gconstpointer v2)744 device_equal (gconstpointer v1,
745 gconstpointer v2)
746 {
747 return *(dev_t *)v1 == *(dev_t *)v2;
748 }
749
750 static guint
device_hash(gconstpointer v)751 device_hash (gconstpointer v)
752 {
753 return (guint) *(dev_t *)v;
754 }
755
756 static void
get_mount_info(GFileInfo * fs_info,const char * path,GFileAttributeMatcher * matcher)757 get_mount_info (GFileInfo *fs_info,
758 const char *path,
759 GFileAttributeMatcher *matcher)
760 {
761 GStatBuf buf;
762 gboolean got_info;
763 gpointer info_as_ptr;
764 guint mount_info;
765 char *mountpoint;
766 dev_t *dev;
767 GUnixMountEntry *mount;
768 guint64 cache_time;
769
770 if (g_lstat (path, &buf) != 0)
771 return;
772
773 G_LOCK (mount_info_hash);
774
775 if (mount_info_hash == NULL)
776 mount_info_hash = g_hash_table_new_full (device_hash, device_equal,
777 g_free, NULL);
778
779
780 if (g_unix_mounts_changed_since (mount_info_hash_cache_time))
781 g_hash_table_remove_all (mount_info_hash);
782
783 got_info = g_hash_table_lookup_extended (mount_info_hash,
784 &buf.st_dev,
785 NULL,
786 &info_as_ptr);
787
788 G_UNLOCK (mount_info_hash);
789
790 mount_info = GPOINTER_TO_UINT (info_as_ptr);
791
792 if (!got_info)
793 {
794 mount_info = 0;
795
796 mountpoint = find_mountpoint_for (path, buf.st_dev, FALSE);
797 if (mountpoint == NULL)
798 mountpoint = g_strdup ("/");
799
800 mount = g_unix_mount_at (mountpoint, &cache_time);
801 if (mount)
802 {
803 if (g_unix_mount_is_readonly (mount))
804 mount_info |= MOUNT_INFO_READONLY;
805
806 g_unix_mount_free (mount);
807 }
808
809 g_free (mountpoint);
810
811 dev = g_new0 (dev_t, 1);
812 *dev = buf.st_dev;
813
814 G_LOCK (mount_info_hash);
815 mount_info_hash_cache_time = cache_time;
816 g_hash_table_insert (mount_info_hash, dev, GUINT_TO_POINTER (mount_info));
817 G_UNLOCK (mount_info_hash);
818 }
819
820 if (mount_info & MOUNT_INFO_READONLY)
821 g_file_info_set_attribute_boolean (fs_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
822 }
823
824 #endif
825
826 #ifdef G_OS_WIN32
827
828 static gboolean
is_xp_or_later(void)829 is_xp_or_later (void)
830 {
831 static int result = -1;
832
833 if (result == -1)
834 {
835 #ifndef _MSC_VER
836 OSVERSIONINFOEX ver_info = {0};
837 DWORDLONG cond_mask = 0;
838 int op = VER_GREATER_EQUAL;
839
840 ver_info.dwOSVersionInfoSize = sizeof ver_info;
841 ver_info.dwMajorVersion = 5;
842 ver_info.dwMinorVersion = 1;
843
844 VER_SET_CONDITION (cond_mask, VER_MAJORVERSION, op);
845 VER_SET_CONDITION (cond_mask, VER_MINORVERSION, op);
846
847 result = VerifyVersionInfo (&ver_info,
848 VER_MAJORVERSION | VER_MINORVERSION,
849 cond_mask) != 0;
850 #else
851 result = ((DWORD)(LOBYTE (LOWORD (GetVersion ())))) >= 5;
852 #endif
853 }
854
855 return result;
856 }
857
858 static wchar_t *
get_volume_for_path(const char * path)859 get_volume_for_path (const char *path)
860 {
861 long len;
862 wchar_t *wpath;
863 wchar_t *result;
864
865 wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL);
866 result = g_new (wchar_t, MAX_PATH);
867
868 if (!GetVolumePathNameW (wpath, result, MAX_PATH))
869 {
870 char *msg = g_win32_error_message (GetLastError ());
871 g_critical ("GetVolumePathName failed: %s", msg);
872 g_free (msg);
873 g_free (result);
874 g_free (wpath);
875 return NULL;
876 }
877
878 len = wcslen (result);
879 if (len > 0 && result[len-1] != L'\\')
880 {
881 result = g_renew (wchar_t, result, len + 2);
882 result[len] = L'\\';
883 result[len + 1] = 0;
884 }
885
886 g_free (wpath);
887 return result;
888 }
889
890 static char *
find_mountpoint_for(const char * file,dev_t dev,gboolean resolve_basename_symlink)891 find_mountpoint_for (const char *file, dev_t dev, gboolean resolve_basename_symlink)
892 {
893 wchar_t *wpath;
894 char *utf8_path;
895
896 wpath = get_volume_for_path (file);
897 if (!wpath)
898 return NULL;
899
900 utf8_path = g_utf16_to_utf8 (wpath, -1, NULL, NULL, NULL);
901
902 g_free (wpath);
903 return utf8_path;
904 }
905
906 static void
get_filesystem_readonly(GFileInfo * info,const char * path)907 get_filesystem_readonly (GFileInfo *info,
908 const char *path)
909 {
910 wchar_t *rootdir;
911
912 rootdir = get_volume_for_path (path);
913
914 if (rootdir)
915 {
916 if (is_xp_or_later ())
917 {
918 DWORD flags;
919 if (GetVolumeInformationW (rootdir, NULL, 0, NULL, NULL, &flags, NULL, 0))
920 g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY,
921 (flags & FILE_READ_ONLY_VOLUME) != 0);
922 }
923 else
924 {
925 if (GetDriveTypeW (rootdir) == DRIVE_CDROM)
926 g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
927 }
928 }
929
930 g_free (rootdir);
931 }
932
933 #endif /* G_OS_WIN32 */
934
935 #pragma GCC diagnostic push
936 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
937 static void
g_set_io_error(GError ** error,const gchar * msg,GFile * file,gint errsv)938 g_set_io_error (GError **error,
939 const gchar *msg,
940 GFile *file,
941 gint errsv)
942 {
943 GLocalFile *local = G_LOCAL_FILE (file);
944 gchar *display_name;
945
946 display_name = g_filename_display_name (local->filename);
947 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errsv),
948 msg, display_name, g_strerror (errsv));
949 g_free (display_name);
950 }
951 #pragma GCC diagnostic pop
952
953 static GFileInfo *
g_local_file_query_filesystem_info(GFile * file,const char * attributes,GCancellable * cancellable,GError ** error)954 g_local_file_query_filesystem_info (GFile *file,
955 const char *attributes,
956 GCancellable *cancellable,
957 GError **error)
958 {
959 GLocalFile *local = G_LOCAL_FILE (file);
960 GFileInfo *info;
961 int statfs_result = 0;
962 gboolean no_size;
963 #ifndef G_OS_WIN32
964 const char *fstype;
965 #ifdef USE_STATFS
966 guint64 block_size;
967 struct statfs statfs_buffer;
968 #elif defined(USE_STATVFS)
969 guint64 block_size;
970 struct statvfs statfs_buffer;
971 #endif /* USE_STATFS */
972 #endif /* G_OS_WIN32 */
973 GFileAttributeMatcher *attribute_matcher;
974
975 no_size = FALSE;
976
977 #ifdef USE_STATFS
978
979 #if STATFS_ARGS == 2
980 statfs_result = statfs (local->filename, &statfs_buffer);
981 #elif STATFS_ARGS == 4
982 statfs_result = statfs (local->filename, &statfs_buffer,
983 sizeof (statfs_buffer), 0);
984 #endif /* STATFS_ARGS == 2 */
985 block_size = statfs_buffer.f_bsize;
986
987 /* Many backends can't report free size (for instance the gvfs fuse
988 * backend for backend not supporting this), and set f_bfree to 0,
989 * but it can be 0 for real too. We treat the available == 0 and
990 * free == 0 case as "both of these are invalid", but only on file systems
991 * which are known to not support this (otherwise we can omit metadata for
992 * systems which are legitimately full). */
993 #if defined(__linux__)
994 if (statfs_result == 0 &&
995 statfs_buffer.f_bavail == 0 && statfs_buffer.f_bfree == 0 &&
996 (/* linux/ncp_fs.h: NCP_SUPER_MAGIC == 0x564c */
997 statfs_buffer.f_type == 0x564c ||
998 /* man statfs: FUSE_SUPER_MAGIC == 0x65735546 */
999 statfs_buffer.f_type == 0x65735546))
1000 no_size = TRUE;
1001 #endif /* __linux__ */
1002
1003 #elif defined(USE_STATVFS)
1004 statfs_result = statvfs (local->filename, &statfs_buffer);
1005 block_size = statfs_buffer.f_frsize;
1006 #endif /* USE_STATFS */
1007
1008 if (statfs_result == -1)
1009 {
1010 int errsv = errno;
1011
1012 g_set_io_error (error,
1013 _("Error getting filesystem info for %s: %s"),
1014 file, errsv);
1015 return NULL;
1016 }
1017
1018 info = g_file_info_new ();
1019
1020 attribute_matcher = g_file_attribute_matcher_new (attributes);
1021
1022 if (!no_size &&
1023 g_file_attribute_matcher_matches (attribute_matcher,
1024 G_FILE_ATTRIBUTE_FILESYSTEM_FREE))
1025 {
1026 #ifdef G_OS_WIN32
1027 gchar *localdir = g_path_get_dirname (local->filename);
1028 wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1029 ULARGE_INTEGER li;
1030
1031 g_free (localdir);
1032 if (GetDiskFreeSpaceExW (wdirname, &li, NULL, NULL))
1033 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, (guint64)li.QuadPart);
1034 g_free (wdirname);
1035 #else
1036 #if defined(USE_STATFS) || defined(USE_STATVFS)
1037 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, block_size * statfs_buffer.f_bavail);
1038 #endif
1039 #endif
1040 }
1041 if (!no_size &&
1042 g_file_attribute_matcher_matches (attribute_matcher,
1043 G_FILE_ATTRIBUTE_FILESYSTEM_SIZE))
1044 {
1045 #ifdef G_OS_WIN32
1046 gchar *localdir = g_path_get_dirname (local->filename);
1047 wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1048 ULARGE_INTEGER li;
1049
1050 g_free (localdir);
1051 if (GetDiskFreeSpaceExW (wdirname, NULL, &li, NULL))
1052 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, (guint64)li.QuadPart);
1053 g_free (wdirname);
1054 #else
1055 #if defined(USE_STATFS) || defined(USE_STATVFS)
1056 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, block_size * statfs_buffer.f_blocks);
1057 #endif
1058 #endif /* G_OS_WIN32 */
1059 }
1060
1061 if (!no_size &&
1062 g_file_attribute_matcher_matches (attribute_matcher,
1063 G_FILE_ATTRIBUTE_FILESYSTEM_USED))
1064 {
1065 #ifdef G_OS_WIN32
1066 gchar *localdir = g_path_get_dirname (local->filename);
1067 wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1068 ULARGE_INTEGER li_free;
1069 ULARGE_INTEGER li_total;
1070
1071 g_free (localdir);
1072 if (GetDiskFreeSpaceExW (wdirname, &li_free, &li_total, NULL))
1073 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_USED, (guint64)li_total.QuadPart - (guint64)li_free.QuadPart);
1074 g_free (wdirname);
1075 #else
1076 g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_USED, block_size * (statfs_buffer.f_blocks - statfs_buffer.f_bfree));
1077 #endif /* G_OS_WIN32 */
1078 }
1079
1080 #ifndef G_OS_WIN32
1081 #ifdef USE_STATFS
1082 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
1083 fstype = statfs_buffer.f_fstypename;
1084 #else
1085 fstype = get_fs_type (statfs_buffer.f_type);
1086 #endif
1087
1088 #elif defined(USE_STATVFS)
1089 #if defined(HAVE_STRUCT_STATVFS_F_FSTYPENAME)
1090 fstype = statfs_buffer.f_fstypename;
1091 #elif defined(HAVE_STRUCT_STATVFS_F_BASETYPE)
1092 fstype = statfs_buffer.f_basetype;
1093 #else
1094 fstype = NULL;
1095 #endif
1096 #endif /* USE_STATFS */
1097
1098 if (fstype &&
1099 g_file_attribute_matcher_matches (attribute_matcher,
1100 G_FILE_ATTRIBUTE_FILESYSTEM_TYPE))
1101 g_file_info_set_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, fstype);
1102 #endif /* G_OS_WIN32 */
1103
1104 if (g_file_attribute_matcher_matches (attribute_matcher,
1105 G_FILE_ATTRIBUTE_FILESYSTEM_READONLY))
1106 {
1107 #ifdef G_OS_WIN32
1108 get_filesystem_readonly (info, local->filename);
1109 #else
1110 get_mount_info (info, local->filename, attribute_matcher);
1111 #endif /* G_OS_WIN32 */
1112 }
1113
1114 if (g_file_attribute_matcher_matches (attribute_matcher,
1115 G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE))
1116 g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE,
1117 g_local_file_is_remote (local->filename));
1118
1119 g_file_attribute_matcher_unref (attribute_matcher);
1120
1121 return info;
1122 }
1123
1124 static GMount *
g_local_file_find_enclosing_mount(GFile * file,GCancellable * cancellable,GError ** error)1125 g_local_file_find_enclosing_mount (GFile *file,
1126 GCancellable *cancellable,
1127 GError **error)
1128 {
1129 GLocalFile *local = G_LOCAL_FILE (file);
1130 GStatBuf buf;
1131 char *mountpoint;
1132 GMount *mount;
1133
1134 if (g_lstat (local->filename, &buf) != 0)
1135 goto error;
1136
1137 mountpoint = find_mountpoint_for (local->filename, buf.st_dev, FALSE);
1138 if (mountpoint == NULL)
1139 goto error;
1140
1141 mount = _g_mount_get_for_mount_path (mountpoint, cancellable);
1142 g_free (mountpoint);
1143 if (mount)
1144 return mount;
1145
1146 error:
1147 g_set_io_error (error,
1148 /* Translators: This is an error message when trying to find
1149 * the enclosing (user visible) mount of a file, but none
1150 * exists.
1151 */
1152 _("Containing mount for file %s not found"),
1153 file, 0);
1154
1155 return NULL;
1156 }
1157
1158 static GFile *
g_local_file_set_display_name(GFile * file,const char * display_name,GCancellable * cancellable,GError ** error)1159 g_local_file_set_display_name (GFile *file,
1160 const char *display_name,
1161 GCancellable *cancellable,
1162 GError **error)
1163 {
1164 GLocalFile *local, *new_local;
1165 GFile *new_file, *parent;
1166 GStatBuf statbuf;
1167 GVfsClass *class;
1168 GVfs *vfs;
1169 int errsv;
1170
1171 parent = g_file_get_parent (file);
1172 if (parent == NULL)
1173 {
1174 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
1175 _("Can’t rename root directory"));
1176 return NULL;
1177 }
1178
1179 new_file = g_file_get_child_for_display_name (parent, display_name, error);
1180 g_object_unref (parent);
1181
1182 if (new_file == NULL)
1183 return NULL;
1184 local = G_LOCAL_FILE (file);
1185 new_local = G_LOCAL_FILE (new_file);
1186
1187 if (g_lstat (new_local->filename, &statbuf) == -1)
1188 {
1189 errsv = errno;
1190
1191 if (errsv != ENOENT)
1192 {
1193 g_set_io_error (error, _("Error renaming file %s: %s"), new_file, errsv);
1194 return NULL;
1195 }
1196 }
1197 else
1198 {
1199 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_EXISTS,
1200 _("Can’t rename file, filename already exists"));
1201 return NULL;
1202 }
1203
1204 if (g_rename (local->filename, new_local->filename) == -1)
1205 {
1206 errsv = errno;
1207
1208 if (errsv == EINVAL)
1209 /* We can't get a rename file into itself error here,
1210 * so this must be an invalid filename, on e.g. FAT
1211 */
1212 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_FILENAME,
1213 _("Invalid filename"));
1214 else
1215 g_set_io_error (error,
1216 _("Error renaming file %s: %s"),
1217 file, errsv);
1218 g_object_unref (new_file);
1219 return NULL;
1220 }
1221
1222 vfs = g_vfs_get_default ();
1223 class = G_VFS_GET_CLASS (vfs);
1224 if (class->local_file_moved)
1225 class->local_file_moved (vfs, local->filename, new_local->filename);
1226
1227 return new_file;
1228 }
1229
1230 static GFileInfo *
g_local_file_query_info(GFile * file,const char * attributes,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)1231 g_local_file_query_info (GFile *file,
1232 const char *attributes,
1233 GFileQueryInfoFlags flags,
1234 GCancellable *cancellable,
1235 GError **error)
1236 {
1237 GLocalFile *local = G_LOCAL_FILE (file);
1238 GFileInfo *info;
1239 GFileAttributeMatcher *matcher;
1240 char *basename, *dirname;
1241 GLocalParentFileInfo parent_info;
1242
1243 matcher = g_file_attribute_matcher_new (attributes);
1244
1245 basename = g_path_get_basename (local->filename);
1246
1247 dirname = g_path_get_dirname (local->filename);
1248 _g_local_file_info_get_parent_info (dirname, matcher, &parent_info);
1249 g_free (dirname);
1250
1251 info = _g_local_file_info_get (basename, local->filename,
1252 matcher, flags, &parent_info,
1253 error);
1254
1255
1256 _g_local_file_info_free_parent_info (&parent_info);
1257 g_free (basename);
1258
1259 g_file_attribute_matcher_unref (matcher);
1260
1261 return info;
1262 }
1263
1264 static GFileAttributeInfoList *
g_local_file_query_settable_attributes(GFile * file,GCancellable * cancellable,GError ** error)1265 g_local_file_query_settable_attributes (GFile *file,
1266 GCancellable *cancellable,
1267 GError **error)
1268 {
1269 return g_file_attribute_info_list_ref (local_writable_attributes);
1270 }
1271
1272 static GFileAttributeInfoList *
g_local_file_query_writable_namespaces(GFile * file,GCancellable * cancellable,GError ** error)1273 g_local_file_query_writable_namespaces (GFile *file,
1274 GCancellable *cancellable,
1275 GError **error)
1276 {
1277 GFileAttributeInfoList *list;
1278 GVfsClass *class;
1279 GVfs *vfs;
1280
1281 if (g_once_init_enter (&local_writable_namespaces))
1282 {
1283 /* Writable namespaces: */
1284
1285 list = g_file_attribute_info_list_new ();
1286
1287 #ifdef HAVE_XATTR
1288 g_file_attribute_info_list_add (list,
1289 "xattr",
1290 G_FILE_ATTRIBUTE_TYPE_STRING,
1291 G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
1292 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
1293 g_file_attribute_info_list_add (list,
1294 "xattr-sys",
1295 G_FILE_ATTRIBUTE_TYPE_STRING,
1296 G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
1297 #endif
1298
1299 vfs = g_vfs_get_default ();
1300 class = G_VFS_GET_CLASS (vfs);
1301 if (class->add_writable_namespaces)
1302 class->add_writable_namespaces (vfs, list);
1303
1304 g_once_init_leave (&local_writable_namespaces, (gsize)list);
1305 }
1306 list = (GFileAttributeInfoList *)local_writable_namespaces;
1307
1308 return g_file_attribute_info_list_ref (list);
1309 }
1310
1311 static gboolean
g_local_file_set_attribute(GFile * file,const char * attribute,GFileAttributeType type,gpointer value_p,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)1312 g_local_file_set_attribute (GFile *file,
1313 const char *attribute,
1314 GFileAttributeType type,
1315 gpointer value_p,
1316 GFileQueryInfoFlags flags,
1317 GCancellable *cancellable,
1318 GError **error)
1319 {
1320 GLocalFile *local = G_LOCAL_FILE (file);
1321
1322 return _g_local_file_info_set_attribute (local->filename,
1323 attribute,
1324 type,
1325 value_p,
1326 flags,
1327 cancellable,
1328 error);
1329 }
1330
1331 static gboolean
g_local_file_set_attributes_from_info(GFile * file,GFileInfo * info,GFileQueryInfoFlags flags,GCancellable * cancellable,GError ** error)1332 g_local_file_set_attributes_from_info (GFile *file,
1333 GFileInfo *info,
1334 GFileQueryInfoFlags flags,
1335 GCancellable *cancellable,
1336 GError **error)
1337 {
1338 GLocalFile *local = G_LOCAL_FILE (file);
1339 int res, chained_res;
1340 GFileIface *default_iface;
1341
1342 res = _g_local_file_info_set_attributes (local->filename,
1343 info, flags,
1344 cancellable,
1345 error);
1346
1347 if (!res)
1348 error = NULL; /* Don't write over error if further errors */
1349
1350 default_iface = g_type_default_interface_peek (G_TYPE_FILE);
1351
1352 chained_res = (default_iface->set_attributes_from_info) (file, info, flags, cancellable, error);
1353
1354 return res && chained_res;
1355 }
1356
1357 static GFileInputStream *
g_local_file_read(GFile * file,GCancellable * cancellable,GError ** error)1358 g_local_file_read (GFile *file,
1359 GCancellable *cancellable,
1360 GError **error)
1361 {
1362 GLocalFile *local = G_LOCAL_FILE (file);
1363 int fd, ret;
1364 GLocalFileStat buf;
1365
1366 fd = g_open (local->filename, O_RDONLY|O_BINARY, 0);
1367 if (fd == -1)
1368 {
1369 int errsv = errno;
1370
1371 #ifdef G_OS_WIN32
1372 if (errsv == EACCES)
1373 {
1374 /* Exploit the fact that on W32 the glib filename encoding is UTF8 */
1375 ret = GLIB_PRIVATE_CALL (g_win32_stat_utf8) (local->filename, &buf);
1376 if (ret == 0 && S_ISDIR (buf.st_mode))
1377 errsv = EISDIR;
1378 }
1379 #endif
1380 g_set_io_error (error,
1381 _("Error opening file %s: %s"),
1382 file, errsv);
1383 return NULL;
1384 }
1385
1386 #ifdef G_OS_WIN32
1387 ret = GLIB_PRIVATE_CALL (g_win32_fstat) (fd, &buf);
1388 #else
1389 ret = fstat (fd, &buf);
1390 #endif
1391
1392 if (ret == 0 && S_ISDIR (buf.st_mode))
1393 {
1394 (void) g_close (fd, NULL);
1395 g_set_io_error (error,
1396 _("Error opening file %s: %s"),
1397 file, EISDIR);
1398 return NULL;
1399 }
1400
1401 return _g_local_file_input_stream_new (fd);
1402 }
1403
1404 static GFileOutputStream *
g_local_file_append_to(GFile * file,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1405 g_local_file_append_to (GFile *file,
1406 GFileCreateFlags flags,
1407 GCancellable *cancellable,
1408 GError **error)
1409 {
1410 return _g_local_file_output_stream_append (G_LOCAL_FILE (file)->filename,
1411 flags, cancellable, error);
1412 }
1413
1414 static GFileOutputStream *
g_local_file_create(GFile * file,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1415 g_local_file_create (GFile *file,
1416 GFileCreateFlags flags,
1417 GCancellable *cancellable,
1418 GError **error)
1419 {
1420 return _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1421 FALSE, flags, NULL,
1422 cancellable, error);
1423 }
1424
1425 static GFileOutputStream *
g_local_file_replace(GFile * file,const char * etag,gboolean make_backup,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1426 g_local_file_replace (GFile *file,
1427 const char *etag,
1428 gboolean make_backup,
1429 GFileCreateFlags flags,
1430 GCancellable *cancellable,
1431 GError **error)
1432 {
1433 return _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1434 FALSE,
1435 etag, make_backup, flags, NULL,
1436 cancellable, error);
1437 }
1438
1439 static GFileIOStream *
g_local_file_open_readwrite(GFile * file,GCancellable * cancellable,GError ** error)1440 g_local_file_open_readwrite (GFile *file,
1441 GCancellable *cancellable,
1442 GError **error)
1443 {
1444 GFileOutputStream *output;
1445 GFileIOStream *res;
1446
1447 output = _g_local_file_output_stream_open (G_LOCAL_FILE (file)->filename,
1448 TRUE,
1449 cancellable, error);
1450 if (output == NULL)
1451 return NULL;
1452
1453 res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1454 g_object_unref (output);
1455 return res;
1456 }
1457
1458 static GFileIOStream *
g_local_file_create_readwrite(GFile * file,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1459 g_local_file_create_readwrite (GFile *file,
1460 GFileCreateFlags flags,
1461 GCancellable *cancellable,
1462 GError **error)
1463 {
1464 GFileOutputStream *output;
1465 GFileIOStream *res;
1466
1467 output = _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1468 TRUE, flags, NULL,
1469 cancellable, error);
1470 if (output == NULL)
1471 return NULL;
1472
1473 res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1474 g_object_unref (output);
1475 return res;
1476 }
1477
1478 static GFileIOStream *
g_local_file_replace_readwrite(GFile * file,const char * etag,gboolean make_backup,GFileCreateFlags flags,GCancellable * cancellable,GError ** error)1479 g_local_file_replace_readwrite (GFile *file,
1480 const char *etag,
1481 gboolean make_backup,
1482 GFileCreateFlags flags,
1483 GCancellable *cancellable,
1484 GError **error)
1485 {
1486 GFileOutputStream *output;
1487 GFileIOStream *res;
1488
1489 output = _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1490 TRUE,
1491 etag, make_backup, flags, NULL,
1492 cancellable, error);
1493 if (output == NULL)
1494 return NULL;
1495
1496 res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1497 g_object_unref (output);
1498 return res;
1499 }
1500
1501 static gboolean
g_local_file_delete(GFile * file,GCancellable * cancellable,GError ** error)1502 g_local_file_delete (GFile *file,
1503 GCancellable *cancellable,
1504 GError **error)
1505 {
1506 GLocalFile *local = G_LOCAL_FILE (file);
1507 GVfsClass *class;
1508 GVfs *vfs;
1509
1510 if (g_remove (local->filename) == -1)
1511 {
1512 int errsv = errno;
1513
1514 /* Posix allows EEXIST too, but the more sane error
1515 is G_IO_ERROR_NOT_FOUND, and it's what nautilus
1516 expects */
1517 if (errsv == EEXIST)
1518 errsv = ENOTEMPTY;
1519
1520 g_set_io_error (error,
1521 _("Error removing file %s: %s"),
1522 file, errsv);
1523 return FALSE;
1524 }
1525
1526 vfs = g_vfs_get_default ();
1527 class = G_VFS_GET_CLASS (vfs);
1528 if (class->local_file_removed)
1529 class->local_file_removed (vfs, local->filename);
1530
1531 return TRUE;
1532 }
1533
1534 #ifndef G_OS_WIN32
1535
1536 static char *
strip_trailing_slashes(const char * path)1537 strip_trailing_slashes (const char *path)
1538 {
1539 char *path_copy;
1540 int len;
1541
1542 path_copy = g_strdup (path);
1543 len = strlen (path_copy);
1544 while (len > 1 && path_copy[len-1] == '/')
1545 path_copy[--len] = 0;
1546
1547 return path_copy;
1548 }
1549
1550 static char *
expand_symlink(const char * link)1551 expand_symlink (const char *link)
1552 {
1553 char *resolved, *canonical, *parent, *link2;
1554 char symlink_value[4096];
1555 #ifdef G_OS_WIN32
1556 #else
1557 gssize res;
1558 #endif
1559
1560 #ifdef G_OS_WIN32
1561 #else
1562 res = readlink (link, symlink_value, sizeof (symlink_value) - 1);
1563
1564 if (res == -1)
1565 return g_strdup (link);
1566 symlink_value[res] = 0;
1567 #endif
1568
1569 if (g_path_is_absolute (symlink_value))
1570 return g_canonicalize_filename (symlink_value, NULL);
1571 else
1572 {
1573 link2 = strip_trailing_slashes (link);
1574 parent = g_path_get_dirname (link2);
1575 g_free (link2);
1576
1577 resolved = g_build_filename (parent, symlink_value, NULL);
1578 g_free (parent);
1579
1580 canonical = g_canonicalize_filename (resolved, NULL);
1581
1582 g_free (resolved);
1583
1584 return canonical;
1585 }
1586 }
1587
1588 static char *
expand_symlinks(const char * path,dev_t * dev)1589 expand_symlinks (const char *path,
1590 dev_t *dev)
1591 {
1592 char *tmp, *target;
1593 GStatBuf target_stat;
1594 int num_recursions;
1595
1596 target = g_strdup (path);
1597
1598 num_recursions = 0;
1599 do
1600 {
1601 if (g_lstat (target, &target_stat) != 0)
1602 {
1603 g_free (target);
1604 return NULL;
1605 }
1606
1607 if (S_ISLNK (target_stat.st_mode))
1608 {
1609 tmp = target;
1610 target = expand_symlink (target);
1611 g_free (tmp);
1612 }
1613
1614 num_recursions++;
1615
1616 #ifdef MAXSYMLINKS
1617 if (num_recursions > MAXSYMLINKS)
1618 #else
1619 /* 40 is used in kernel sources currently:
1620 * https://github.com/torvalds/linux/include/linux/namei.h
1621 */
1622 if (num_recursions > 40)
1623 #endif
1624 {
1625 g_free (target);
1626 return NULL;
1627 }
1628 }
1629 while (S_ISLNK (target_stat.st_mode));
1630
1631 if (dev)
1632 *dev = target_stat.st_dev;
1633
1634 return target;
1635 }
1636
1637 static char *
get_parent(const char * path,dev_t * parent_dev)1638 get_parent (const char *path,
1639 dev_t *parent_dev)
1640 {
1641 char *parent, *res;
1642 char *path_copy;
1643
1644 path_copy = strip_trailing_slashes (path);
1645
1646 parent = g_path_get_dirname (path_copy);
1647 if (strcmp (parent, ".") == 0)
1648 {
1649 g_free (parent);
1650 g_free (path_copy);
1651 return NULL;
1652 }
1653 g_free (path_copy);
1654
1655 res = expand_symlinks (parent, parent_dev);
1656 g_free (parent);
1657
1658 return res;
1659 }
1660
1661 static char *
expand_all_symlinks(const char * path)1662 expand_all_symlinks (const char *path)
1663 {
1664 char *parent, *parent_expanded;
1665 char *basename, *res;
1666 dev_t parent_dev;
1667
1668 parent = get_parent (path, &parent_dev);
1669 if (parent == NULL)
1670 return NULL;
1671
1672 if (g_strcmp0 (parent, "/") != 0)
1673 {
1674 parent_expanded = expand_all_symlinks (parent);
1675 basename = g_path_get_basename (path);
1676 res = g_build_filename (parent_expanded, basename, NULL);
1677 g_free (basename);
1678 g_free (parent_expanded);
1679 }
1680 else
1681 res = g_strdup (path);
1682
1683 g_free (parent);
1684
1685 return res;
1686 }
1687
1688 static char *
find_mountpoint_for(const char * file,dev_t dev,gboolean resolve_basename_symlink)1689 find_mountpoint_for (const char *file,
1690 dev_t dev,
1691 gboolean resolve_basename_symlink)
1692 {
1693 char *dir, *parent;
1694 dev_t dir_dev, parent_dev;
1695
1696 if (resolve_basename_symlink)
1697 {
1698 dir = expand_symlinks (file, NULL);
1699 if (dir == NULL)
1700 return NULL;
1701 }
1702 else
1703 dir = g_strdup (file);
1704
1705 dir_dev = dev;
1706
1707 while (g_strcmp0 (dir, "/") != 0)
1708 {
1709 parent = get_parent (dir, &parent_dev);
1710 if (parent == NULL)
1711 {
1712 g_free (dir);
1713 return NULL;
1714 }
1715
1716 if (parent_dev != dir_dev)
1717 {
1718 g_free (parent);
1719 return dir;
1720 }
1721
1722 g_free (dir);
1723 dir = parent;
1724 }
1725
1726 return dir;
1727 }
1728
1729 char *
_g_local_file_find_topdir_for(const char * file)1730 _g_local_file_find_topdir_for (const char *file)
1731 {
1732 char *dir;
1733 char *mountpoint = NULL;
1734 dev_t dir_dev;
1735
1736 dir = get_parent (file, &dir_dev);
1737 if (dir == NULL)
1738 return NULL;
1739
1740 mountpoint = find_mountpoint_for (dir, dir_dev, TRUE);
1741 g_free (dir);
1742
1743 return mountpoint;
1744 }
1745
1746 static char *
get_unique_filename(const char * basename,int id)1747 get_unique_filename (const char *basename,
1748 int id)
1749 {
1750 const char *dot;
1751
1752 if (id == 1)
1753 return g_strdup (basename);
1754
1755 dot = strchr (basename, '.');
1756 if (dot)
1757 return g_strdup_printf ("%.*s.%d%s", (int)(dot - basename), basename, id, dot);
1758 else
1759 return g_strdup_printf ("%s.%d", basename, id);
1760 }
1761
1762 static gboolean
path_has_prefix(const char * path,const char * prefix)1763 path_has_prefix (const char *path,
1764 const char *prefix)
1765 {
1766 int prefix_len;
1767
1768 if (prefix == NULL)
1769 return TRUE;
1770
1771 prefix_len = strlen (prefix);
1772
1773 if (strncmp (path, prefix, prefix_len) == 0 &&
1774 (prefix_len == 0 || /* empty prefix always matches */
1775 prefix[prefix_len - 1] == '/' || /* last char in prefix was a /, so it must be in path too */
1776 path[prefix_len] == 0 ||
1777 path[prefix_len] == '/'))
1778 return TRUE;
1779
1780 return FALSE;
1781 }
1782
1783 static char *
try_make_relative(const char * path,const char * base)1784 try_make_relative (const char *path,
1785 const char *base)
1786 {
1787 char *path2, *base2;
1788 char *relative;
1789
1790 path2 = expand_all_symlinks (path);
1791 base2 = expand_all_symlinks (base);
1792
1793 relative = NULL;
1794 if (path2 != NULL && base2 != NULL && path_has_prefix (path2, base2))
1795 {
1796 relative = path2 + strlen (base2);
1797 while (*relative == '/')
1798 relative ++;
1799 relative = g_strdup (relative);
1800 }
1801 g_free (path2);
1802 g_free (base2);
1803
1804 if (relative)
1805 return relative;
1806
1807 /* Failed, use abs path */
1808 return g_strdup (path);
1809 }
1810
1811 gboolean
_g_local_file_has_trash_dir(const char * dirname,dev_t dir_dev)1812 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
1813 {
1814 static gsize home_dev_set = 0;
1815 static dev_t home_dev;
1816 char *topdir, *globaldir, *trashdir, *tmpname;
1817 uid_t uid;
1818 char uid_str[32];
1819 GStatBuf global_stat, trash_stat;
1820 gboolean res;
1821 GUnixMountEntry *mount;
1822
1823 if (g_once_init_enter (&home_dev_set))
1824 {
1825 GStatBuf home_stat;
1826
1827 g_stat (g_get_home_dir (), &home_stat);
1828 home_dev = home_stat.st_dev;
1829 g_once_init_leave (&home_dev_set, 1);
1830 }
1831
1832 /* Assume we can trash to the home */
1833 if (dir_dev == home_dev)
1834 return TRUE;
1835
1836 topdir = find_mountpoint_for (dirname, dir_dev, TRUE);
1837 if (topdir == NULL)
1838 return FALSE;
1839
1840 mount = g_unix_mount_at (topdir, NULL);
1841 if (mount == NULL || g_unix_mount_is_system_internal (mount))
1842 {
1843 g_clear_pointer (&mount, g_unix_mount_free);
1844 g_free (topdir);
1845
1846 return FALSE;
1847 }
1848
1849 g_clear_pointer (&mount, g_unix_mount_free);
1850
1851 globaldir = g_build_filename (topdir, ".Trash", NULL);
1852 if (g_lstat (globaldir, &global_stat) == 0 &&
1853 S_ISDIR (global_stat.st_mode) &&
1854 (global_stat.st_mode & S_ISVTX) != 0)
1855 {
1856 /* got a toplevel sysadmin created dir, assume we
1857 * can trash to it (we should be able to create a dir)
1858 * This fails for the FAT case where the ownership of
1859 * that dir would be wrong though..
1860 */
1861 g_free (globaldir);
1862 g_free (topdir);
1863 return TRUE;
1864 }
1865 g_free (globaldir);
1866
1867 /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
1868 uid = geteuid ();
1869 g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long) uid);
1870
1871 tmpname = g_strdup_printf (".Trash-%s", uid_str);
1872 trashdir = g_build_filename (topdir, tmpname, NULL);
1873 g_free (tmpname);
1874
1875 if (g_lstat (trashdir, &trash_stat) == 0)
1876 {
1877 g_free (topdir);
1878 g_free (trashdir);
1879 return S_ISDIR (trash_stat.st_mode) &&
1880 trash_stat.st_uid == uid;
1881 }
1882 g_free (trashdir);
1883
1884 /* User specific trash didn't exist, can we create it? */
1885 res = g_access (topdir, W_OK) == 0;
1886 g_free (topdir);
1887
1888 return res;
1889 }
1890
1891 #ifdef G_OS_UNIX
1892 gboolean
_g_local_file_is_lost_found_dir(const char * path,dev_t path_dev)1893 _g_local_file_is_lost_found_dir (const char *path, dev_t path_dev)
1894 {
1895 gboolean ret = FALSE;
1896 gchar *mount_dir = NULL;
1897 size_t mount_dir_len;
1898 GStatBuf statbuf;
1899
1900 if (!g_str_has_suffix (path, "/lost+found"))
1901 goto out;
1902
1903 mount_dir = find_mountpoint_for (path, path_dev, FALSE);
1904 if (mount_dir == NULL)
1905 goto out;
1906
1907 mount_dir_len = strlen (mount_dir);
1908 /* We special-case rootfs ('/') since it's the only case where
1909 * mount_dir ends in '/'
1910 */
1911 if (mount_dir_len == 1)
1912 mount_dir_len--;
1913 if (mount_dir_len + strlen ("/lost+found") != strlen (path))
1914 goto out;
1915
1916 if (g_lstat (path, &statbuf) != 0)
1917 goto out;
1918
1919 if (!(S_ISDIR (statbuf.st_mode) &&
1920 statbuf.st_uid == 0 &&
1921 statbuf.st_gid == 0))
1922 goto out;
1923
1924 ret = TRUE;
1925
1926 out:
1927 g_free (mount_dir);
1928 return ret;
1929 }
1930 #endif
1931
1932 static gboolean
g_local_file_trash(GFile * file,GCancellable * cancellable,GError ** error)1933 g_local_file_trash (GFile *file,
1934 GCancellable *cancellable,
1935 GError **error)
1936 {
1937 GLocalFile *local = G_LOCAL_FILE (file);
1938 GStatBuf file_stat, home_stat;
1939 const char *homedir;
1940 char *trashdir, *topdir, *infodir, *filesdir;
1941 char *basename, *trashname, *trashfile, *infoname, *infofile;
1942 char *original_name, *original_name_escaped;
1943 int i;
1944 char *data;
1945 char *path;
1946 gboolean is_homedir_trash;
1947 char *delete_time = NULL;
1948 int fd;
1949 GStatBuf trash_stat, global_stat;
1950 char *dirname, *globaldir;
1951 GVfsClass *class;
1952 GVfs *vfs;
1953 int errsv;
1954
1955 if (glib_should_use_portal ())
1956 return g_trash_portal_trash_file (file, error);
1957
1958 if (g_lstat (local->filename, &file_stat) != 0)
1959 {
1960 errsv = errno;
1961
1962 g_set_io_error (error,
1963 _("Error trashing file %s: %s"),
1964 file, errsv);
1965 return FALSE;
1966 }
1967
1968 homedir = g_get_home_dir ();
1969 g_stat (homedir, &home_stat);
1970
1971 is_homedir_trash = FALSE;
1972 trashdir = NULL;
1973
1974 /* On overlayfs, a file's st_dev will be different to the home directory's.
1975 * We still want to create our trash directory under the home directory, so
1976 * instead we should stat the directory that the file we're deleting is in as
1977 * this will have the same st_dev.
1978 */
1979 if (!S_ISDIR (file_stat.st_mode))
1980 {
1981 path = g_path_get_dirname (local->filename);
1982 /* If the parent is a symlink to a different device then it might have
1983 * st_dev equal to the home directory's, in which case we will end up
1984 * trying to rename across a filesystem boundary, which doesn't work. So
1985 * we use g_stat here instead of g_lstat, to know where the symlink
1986 * points to. */
1987 g_stat (path, &file_stat);
1988 g_free (path);
1989 }
1990
1991 if (file_stat.st_dev == home_stat.st_dev)
1992 {
1993 is_homedir_trash = TRUE;
1994 errno = 0;
1995 trashdir = g_build_filename (g_get_user_data_dir (), "Trash", NULL);
1996 if (g_mkdir_with_parents (trashdir, 0700) < 0)
1997 {
1998 char *display_name;
1999 errsv = errno;
2000
2001 display_name = g_filename_display_name (trashdir);
2002 g_set_error (error, G_IO_ERROR,
2003 g_io_error_from_errno (errsv),
2004 _("Unable to create trash dir %s: %s"),
2005 display_name, g_strerror (errsv));
2006 g_free (display_name);
2007 g_free (trashdir);
2008 return FALSE;
2009 }
2010 topdir = g_strdup (g_get_user_data_dir ());
2011 }
2012 else
2013 {
2014 uid_t uid;
2015 char uid_str[32];
2016 GUnixMountEntry *mount;
2017
2018 uid = geteuid ();
2019 g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long)uid);
2020
2021 topdir = _g_local_file_find_topdir_for (local->filename);
2022 if (topdir == NULL)
2023 {
2024 g_set_io_error (error,
2025 _("Unable to find toplevel directory to trash %s"),
2026 file, ENOTSUP);
2027 return FALSE;
2028 }
2029
2030 mount = g_unix_mount_at (topdir, NULL);
2031 if (mount == NULL || g_unix_mount_is_system_internal (mount))
2032 {
2033 g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
2034 _("Trashing on system internal mounts is not supported"));
2035
2036 g_clear_pointer (&mount, g_unix_mount_free);
2037 g_free (topdir);
2038
2039 return FALSE;
2040 }
2041
2042 g_clear_pointer (&mount, g_unix_mount_free);
2043
2044 /* Try looking for global trash dir $topdir/.Trash/$uid */
2045 globaldir = g_build_filename (topdir, ".Trash", NULL);
2046 if (g_lstat (globaldir, &global_stat) == 0 &&
2047 S_ISDIR (global_stat.st_mode) &&
2048 (global_stat.st_mode & S_ISVTX) != 0)
2049 {
2050 trashdir = g_build_filename (globaldir, uid_str, NULL);
2051
2052 if (g_lstat (trashdir, &trash_stat) == 0)
2053 {
2054 if (!S_ISDIR (trash_stat.st_mode) ||
2055 trash_stat.st_uid != uid)
2056 {
2057 /* Not a directory or not owned by user, ignore */
2058 g_free (trashdir);
2059 trashdir = NULL;
2060 }
2061 }
2062 else if (g_mkdir (trashdir, 0700) == -1)
2063 {
2064 g_free (trashdir);
2065 trashdir = NULL;
2066 }
2067 }
2068 g_free (globaldir);
2069
2070 if (trashdir == NULL)
2071 {
2072 gboolean tried_create;
2073
2074 /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
2075 dirname = g_strdup_printf (".Trash-%s", uid_str);
2076 trashdir = g_build_filename (topdir, dirname, NULL);
2077 g_free (dirname);
2078
2079 tried_create = FALSE;
2080
2081 retry:
2082 if (g_lstat (trashdir, &trash_stat) == 0)
2083 {
2084 if (!S_ISDIR (trash_stat.st_mode) ||
2085 trash_stat.st_uid != uid)
2086 {
2087 /* Remove the failed directory */
2088 if (tried_create)
2089 g_remove (trashdir);
2090
2091 /* Not a directory or not owned by user, ignore */
2092 g_free (trashdir);
2093 trashdir = NULL;
2094 }
2095 }
2096 else
2097 {
2098 if (!tried_create &&
2099 g_mkdir (trashdir, 0700) != -1)
2100 {
2101 /* Ensure that the created dir has the right uid etc.
2102 This might fail on e.g. a FAT dir */
2103 tried_create = TRUE;
2104 goto retry;
2105 }
2106 else
2107 {
2108 g_free (trashdir);
2109 trashdir = NULL;
2110 }
2111 }
2112 }
2113
2114 if (trashdir == NULL)
2115 {
2116 g_free (topdir);
2117 g_set_io_error (error,
2118 _("Unable to find or create trash directory for %s"),
2119 file, G_IO_ERROR_NOT_SUPPORTED);
2120 return FALSE;
2121 }
2122 }
2123
2124 /* Trashdir points to the trash dir with the "info" and "files" subdirectories */
2125
2126 infodir = g_build_filename (trashdir, "info", NULL);
2127 filesdir = g_build_filename (trashdir, "files", NULL);
2128 g_free (trashdir);
2129
2130 /* Make sure we have the subdirectories */
2131 if ((g_mkdir (infodir, 0700) == -1 && errno != EEXIST) ||
2132 (g_mkdir (filesdir, 0700) == -1 && errno != EEXIST))
2133 {
2134 g_free (topdir);
2135 g_free (infodir);
2136 g_free (filesdir);
2137 g_set_io_error (error,
2138 _("Unable to find or create trash directory for %s"),
2139 file, G_IO_ERROR_NOT_SUPPORTED);
2140 return FALSE;
2141 }
2142
2143 basename = g_path_get_basename (local->filename);
2144 i = 1;
2145 trashname = NULL;
2146 infofile = NULL;
2147 do {
2148 g_free (trashname);
2149 g_free (infofile);
2150
2151 trashname = get_unique_filename (basename, i++);
2152 infoname = g_strconcat (trashname, ".trashinfo", NULL);
2153 infofile = g_build_filename (infodir, infoname, NULL);
2154 g_free (infoname);
2155
2156 fd = g_open (infofile, O_CREAT | O_EXCL, 0666);
2157 errsv = errno;
2158 } while (fd == -1 && errsv == EEXIST);
2159
2160 g_free (basename);
2161 g_free (infodir);
2162
2163 if (fd == -1)
2164 {
2165 errsv = errno;
2166
2167 g_free (filesdir);
2168 g_free (topdir);
2169 g_free (trashname);
2170 g_free (infofile);
2171
2172 g_set_io_error (error,
2173 _("Unable to create trashing info file for %s: %s"),
2174 file, errsv);
2175 return FALSE;
2176 }
2177
2178 (void) g_close (fd, NULL);
2179
2180 /* Write the full content of the info file before trashing to make
2181 * sure someone doesn't read an empty file. See #749314
2182 */
2183
2184 /* Use absolute names for homedir */
2185 if (is_homedir_trash)
2186 original_name = g_strdup (local->filename);
2187 else
2188 original_name = try_make_relative (local->filename, topdir);
2189 original_name_escaped = g_uri_escape_string (original_name, "/", FALSE);
2190
2191 g_free (original_name);
2192 g_free (topdir);
2193
2194 {
2195 GDateTime *now = g_date_time_new_now_local ();
2196 if (now != NULL)
2197 delete_time = g_date_time_format (now, "%Y-%m-%dT%H:%M:%S");
2198 else
2199 delete_time = g_strdup ("9999-12-31T23:59:59");
2200 g_date_time_unref (now);
2201 }
2202
2203 data = g_strdup_printf ("[Trash Info]\nPath=%s\nDeletionDate=%s\n",
2204 original_name_escaped, delete_time);
2205 g_free (delete_time);
2206
2207 g_file_set_contents (infofile, data, -1, NULL);
2208
2209 /* TODO: Maybe we should verify that you can delete the file from the trash
2210 * before moving it? OTOH, that is hard, as it needs a recursive scan
2211 */
2212
2213 trashfile = g_build_filename (filesdir, trashname, NULL);
2214
2215 g_free (filesdir);
2216
2217 if (g_rename (local->filename, trashfile) == -1)
2218 {
2219 errsv = errno;
2220
2221 g_unlink (infofile);
2222
2223 g_free (trashname);
2224 g_free (infofile);
2225 g_free (trashfile);
2226
2227 if (errsv == EXDEV)
2228 /* The trash dir was actually on another fs anyway!?
2229 * This can happen when the same device is mounted multiple
2230 * times, or with bind mounts of the same fs.
2231 */
2232 g_set_io_error (error,
2233 _("Unable to trash file %s across filesystem boundaries"),
2234 file, ENOTSUP);
2235 else
2236 g_set_io_error (error,
2237 _("Unable to trash file %s: %s"),
2238 file, errsv);
2239 return FALSE;
2240 }
2241
2242 vfs = g_vfs_get_default ();
2243 class = G_VFS_GET_CLASS (vfs);
2244 if (class->local_file_moved)
2245 class->local_file_moved (vfs, local->filename, trashfile);
2246
2247 g_free (trashfile);
2248
2249 /* TODO: Do we need to update mtime/atime here after the move? */
2250
2251 g_free (infofile);
2252 g_free (data);
2253
2254 g_free (original_name_escaped);
2255 g_free (trashname);
2256
2257 return TRUE;
2258 }
2259 #else /* G_OS_WIN32 */
2260 gboolean
_g_local_file_has_trash_dir(const char * dirname,dev_t dir_dev)2261 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
2262 {
2263 return FALSE; /* XXX ??? */
2264 }
2265
2266 static gboolean
g_local_file_trash(GFile * file,GCancellable * cancellable,GError ** error)2267 g_local_file_trash (GFile *file,
2268 GCancellable *cancellable,
2269 GError **error)
2270 {
2271 GLocalFile *local = G_LOCAL_FILE (file);
2272 SHFILEOPSTRUCTW op = {0};
2273 gboolean success;
2274 wchar_t *wfilename;
2275 long len;
2276
2277 wfilename = g_utf8_to_utf16 (local->filename, -1, NULL, &len, NULL);
2278 /* SHFILEOPSTRUCT.pFrom is double-zero-terminated */
2279 wfilename = g_renew (wchar_t, wfilename, len + 2);
2280 wfilename[len + 1] = 0;
2281
2282 op.wFunc = FO_DELETE;
2283 op.pFrom = wfilename;
2284 op.fFlags = FOF_ALLOWUNDO;
2285
2286 success = SHFileOperationW (&op) == 0;
2287
2288 if (success && op.fAnyOperationsAborted)
2289 {
2290 if (cancellable && !g_cancellable_is_cancelled (cancellable))
2291 g_cancellable_cancel (cancellable);
2292 g_set_io_error (error,
2293 _("Unable to trash file %s: %s"),
2294 file, ECANCELED);
2295 success = FALSE;
2296 }
2297 else if (!success)
2298 g_set_io_error (error,
2299 _("Unable to trash file %s"),
2300 file, 0);
2301
2302 g_free (wfilename);
2303 return success;
2304 }
2305 #endif /* G_OS_WIN32 */
2306
2307 static gboolean
g_local_file_make_directory(GFile * file,GCancellable * cancellable,GError ** error)2308 g_local_file_make_directory (GFile *file,
2309 GCancellable *cancellable,
2310 GError **error)
2311 {
2312 GLocalFile *local = G_LOCAL_FILE (file);
2313
2314 if (g_mkdir (local->filename, 0777) == -1)
2315 {
2316 int errsv = errno;
2317
2318 if (errsv == EINVAL)
2319 /* This must be an invalid filename, on e.g. FAT */
2320 g_set_error_literal (error, G_IO_ERROR,
2321 G_IO_ERROR_INVALID_FILENAME,
2322 _("Invalid filename"));
2323 else
2324 g_set_io_error (error,
2325 _("Error creating directory %s: %s"),
2326 file, errsv);
2327 return FALSE;
2328 }
2329
2330 return TRUE;
2331 }
2332
2333 static gboolean
g_local_file_make_symbolic_link(GFile * file,const char * symlink_value,GCancellable * cancellable,GError ** error)2334 g_local_file_make_symbolic_link (GFile *file,
2335 const char *symlink_value,
2336 GCancellable *cancellable,
2337 GError **error)
2338 {
2339 #ifdef HAVE_SYMLINK
2340 GLocalFile *local = G_LOCAL_FILE (file);
2341
2342 if (symlink (symlink_value, local->filename) == -1)
2343 {
2344 int errsv = errno;
2345
2346 if (errsv == EINVAL)
2347 /* This must be an invalid filename, on e.g. FAT */
2348 g_set_error_literal (error, G_IO_ERROR,
2349 G_IO_ERROR_INVALID_FILENAME,
2350 _("Invalid filename"));
2351 else if (errsv == EPERM)
2352 g_set_error (error, G_IO_ERROR,
2353 G_IO_ERROR_NOT_SUPPORTED,
2354 _("Filesystem does not support symbolic links"));
2355 else
2356 g_set_io_error (error,
2357 _("Error making symbolic link %s: %s"),
2358 file, errsv);
2359 return FALSE;
2360 }
2361 return TRUE;
2362 #else
2363 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, _("Symbolic links not supported"));
2364 return FALSE;
2365 #endif
2366 }
2367
2368
2369 static gboolean
g_local_file_copy(GFile * source,GFile * destination,GFileCopyFlags flags,GCancellable * cancellable,GFileProgressCallback progress_callback,gpointer progress_callback_data,GError ** error)2370 g_local_file_copy (GFile *source,
2371 GFile *destination,
2372 GFileCopyFlags flags,
2373 GCancellable *cancellable,
2374 GFileProgressCallback progress_callback,
2375 gpointer progress_callback_data,
2376 GError **error)
2377 {
2378 /* Fall back to default copy */
2379 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Copy not supported");
2380 return FALSE;
2381 }
2382
2383 static gboolean
g_local_file_move(GFile * source,GFile * destination,GFileCopyFlags flags,GCancellable * cancellable,GFileProgressCallback progress_callback,gpointer progress_callback_data,GError ** error)2384 g_local_file_move (GFile *source,
2385 GFile *destination,
2386 GFileCopyFlags flags,
2387 GCancellable *cancellable,
2388 GFileProgressCallback progress_callback,
2389 gpointer progress_callback_data,
2390 GError **error)
2391 {
2392 GLocalFile *local_source, *local_destination;
2393 GStatBuf statbuf;
2394 gboolean destination_exist, source_is_dir;
2395 char *backup_name;
2396 int res;
2397 off_t source_size;
2398 GVfsClass *class;
2399 GVfs *vfs;
2400
2401 if (!G_IS_LOCAL_FILE (source) ||
2402 !G_IS_LOCAL_FILE (destination))
2403 {
2404 /* Fall back to default move */
2405 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Move not supported");
2406 return FALSE;
2407 }
2408
2409 local_source = G_LOCAL_FILE (source);
2410 local_destination = G_LOCAL_FILE (destination);
2411
2412 res = g_lstat (local_source->filename, &statbuf);
2413 if (res == -1)
2414 {
2415 int errsv = errno;
2416
2417 g_set_io_error (error,
2418 _("Error moving file %s: %s"),
2419 source, errsv);
2420 return FALSE;
2421 }
2422
2423 source_is_dir = S_ISDIR (statbuf.st_mode);
2424 source_size = statbuf.st_size;
2425
2426 destination_exist = FALSE;
2427 res = g_lstat (local_destination->filename, &statbuf);
2428 if (res == 0)
2429 {
2430 destination_exist = TRUE; /* Target file exists */
2431
2432 if (flags & G_FILE_COPY_OVERWRITE)
2433 {
2434 /* Always fail on dirs, even with overwrite */
2435 if (S_ISDIR (statbuf.st_mode))
2436 {
2437 if (source_is_dir)
2438 g_set_error_literal (error,
2439 G_IO_ERROR,
2440 G_IO_ERROR_WOULD_MERGE,
2441 _("Can’t move directory over directory"));
2442 else
2443 g_set_error_literal (error,
2444 G_IO_ERROR,
2445 G_IO_ERROR_IS_DIRECTORY,
2446 _("Can’t copy over directory"));
2447 return FALSE;
2448 }
2449 }
2450 else
2451 {
2452 g_set_io_error (error,
2453 _("Error moving file %s: %s"),
2454 source, EEXIST);
2455 return FALSE;
2456 }
2457 }
2458
2459 if (flags & G_FILE_COPY_BACKUP && destination_exist)
2460 {
2461 backup_name = g_strconcat (local_destination->filename, "~", NULL);
2462 if (g_rename (local_destination->filename, backup_name) == -1)
2463 {
2464 g_set_error_literal (error,
2465 G_IO_ERROR,
2466 G_IO_ERROR_CANT_CREATE_BACKUP,
2467 _("Backup file creation failed"));
2468 g_free (backup_name);
2469 return FALSE;
2470 }
2471 g_free (backup_name);
2472 destination_exist = FALSE; /* It did, but no more */
2473 }
2474
2475 if (source_is_dir && destination_exist && (flags & G_FILE_COPY_OVERWRITE))
2476 {
2477 /* Source is a dir, destination exists (and is not a dir, because that would have failed
2478 earlier), and we're overwriting. Manually remove the target so we can do the rename. */
2479 res = g_unlink (local_destination->filename);
2480 if (res == -1)
2481 {
2482 int errsv = errno;
2483
2484 g_set_error (error, G_IO_ERROR,
2485 g_io_error_from_errno (errsv),
2486 _("Error removing target file: %s"),
2487 g_strerror (errsv));
2488 return FALSE;
2489 }
2490 }
2491
2492 if (g_rename (local_source->filename, local_destination->filename) == -1)
2493 {
2494 int errsv = errno;
2495
2496 if (errsv == EXDEV)
2497 /* This will cause the fallback code to run */
2498 g_set_error_literal (error, G_IO_ERROR,
2499 G_IO_ERROR_NOT_SUPPORTED,
2500 _("Move between mounts not supported"));
2501 else if (errsv == EINVAL)
2502 /* This must be an invalid filename, on e.g. FAT, or
2503 we're trying to move the file into itself...
2504 We return invalid filename for both... */
2505 g_set_error_literal (error, G_IO_ERROR,
2506 G_IO_ERROR_INVALID_FILENAME,
2507 _("Invalid filename"));
2508 else
2509 g_set_io_error (error,
2510 _("Error moving file %s: %s"),
2511 source, errsv);
2512 return FALSE;
2513 }
2514
2515 vfs = g_vfs_get_default ();
2516 class = G_VFS_GET_CLASS (vfs);
2517 if (class->local_file_moved)
2518 class->local_file_moved (vfs, local_source->filename, local_destination->filename);
2519
2520 /* Make sure we send full copied size */
2521 if (progress_callback)
2522 progress_callback (source_size, source_size, progress_callback_data);
2523
2524 return TRUE;
2525 }
2526
2527 #ifdef G_OS_WIN32
2528
2529 gboolean
g_local_file_is_remote(const gchar * filename)2530 g_local_file_is_remote (const gchar *filename)
2531 {
2532 return FALSE;
2533 }
2534
2535 #else
2536
2537 static gboolean
is_remote_fs(const gchar * filename)2538 is_remote_fs (const gchar *filename)
2539 {
2540 const char *fsname = NULL;
2541
2542 #ifdef USE_STATFS
2543 struct statfs statfs_buffer;
2544 int statfs_result = 0;
2545
2546 #if STATFS_ARGS == 2
2547 statfs_result = statfs (filename, &statfs_buffer);
2548 #elif STATFS_ARGS == 4
2549 statfs_result = statfs (filename, &statfs_buffer, sizeof (statfs_buffer), 0);
2550 #endif
2551
2552 #elif defined(USE_STATVFS)
2553 struct statvfs statfs_buffer;
2554 int statfs_result = 0;
2555
2556 statfs_result = statvfs (filename, &statfs_buffer);
2557 #else
2558 return FALSE;
2559 #endif
2560
2561 if (statfs_result == -1)
2562 return FALSE;
2563
2564 #ifdef USE_STATFS
2565 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
2566 fsname = statfs_buffer.f_fstypename;
2567 #else
2568 fsname = get_fs_type (statfs_buffer.f_type);
2569 #endif
2570
2571 #elif defined(USE_STATVFS) && defined(HAVE_STRUCT_STATVFS_F_BASETYPE)
2572 fsname = statfs_buffer.f_basetype;
2573 #endif
2574
2575 if (fsname != NULL)
2576 {
2577 if (strcmp (fsname, "nfs") == 0)
2578 return TRUE;
2579 if (strcmp (fsname, "nfs4") == 0)
2580 return TRUE;
2581 }
2582
2583 return FALSE;
2584 }
2585
2586 gboolean
g_local_file_is_remote(const gchar * filename)2587 g_local_file_is_remote (const gchar *filename)
2588 {
2589 static gboolean remote_home;
2590 static gsize initialized;
2591 const gchar *home;
2592
2593 home = g_get_home_dir ();
2594 if (path_has_prefix (filename, home))
2595 {
2596 if (g_once_init_enter (&initialized))
2597 {
2598 remote_home = is_remote_fs (home);
2599 g_once_init_leave (&initialized, TRUE);
2600 }
2601 return remote_home;
2602 }
2603
2604 return FALSE;
2605 }
2606 #endif /* !G_OS_WIN32 */
2607
2608 static GFileMonitor*
g_local_file_monitor_dir(GFile * file,GFileMonitorFlags flags,GCancellable * cancellable,GError ** error)2609 g_local_file_monitor_dir (GFile *file,
2610 GFileMonitorFlags flags,
2611 GCancellable *cancellable,
2612 GError **error)
2613 {
2614 GLocalFile *local_file = G_LOCAL_FILE (file);
2615
2616 return g_local_file_monitor_new_for_path (local_file->filename, TRUE, flags, error);
2617 }
2618
2619 static GFileMonitor*
g_local_file_monitor_file(GFile * file,GFileMonitorFlags flags,GCancellable * cancellable,GError ** error)2620 g_local_file_monitor_file (GFile *file,
2621 GFileMonitorFlags flags,
2622 GCancellable *cancellable,
2623 GError **error)
2624 {
2625 GLocalFile *local_file = G_LOCAL_FILE (file);
2626
2627 return g_local_file_monitor_new_for_path (local_file->filename, FALSE, flags, error);
2628 }
2629
2630 /* Here is the GLocalFile implementation of g_file_measure_disk_usage().
2631 *
2632 * If available, we use fopenat() in preference to filenames for
2633 * efficiency and safety reasons. We know that fopenat() is available
2634 * based on if AT_FDCWD is defined. POSIX guarantees that this will be
2635 * defined as a macro.
2636 *
2637 * We use a linked list of stack-allocated GSList nodes in order to be
2638 * able to reconstruct the filename for error messages. We actually
2639 * pass the filename to operate on through the top node of the list.
2640 *
2641 * In case we're using openat(), this top filename will be a basename
2642 * which should be opened in the directory which has also had its fd
2643 * passed along. If we're not using openat() then it will be a full
2644 * absolute filename.
2645 */
2646
2647 static gboolean
g_local_file_measure_size_error(GFileMeasureFlags flags,gint saved_errno,GSList * name,GError ** error)2648 g_local_file_measure_size_error (GFileMeasureFlags flags,
2649 gint saved_errno,
2650 GSList *name,
2651 GError **error)
2652 {
2653 /* Only report an error if we were at the toplevel or if the caller
2654 * requested reporting of all errors.
2655 */
2656 if ((name->next == NULL) || (flags & G_FILE_MEASURE_REPORT_ANY_ERROR))
2657 {
2658 GString *filename;
2659 GSList *node;
2660
2661 /* Skip some work if there is no error return */
2662 if (!error)
2663 return FALSE;
2664
2665 #ifdef AT_FDCWD
2666 /* If using openat() we need to rebuild the filename for the message */
2667 filename = g_string_new (name->data);
2668 for (node = name->next; node; node = node->next)
2669 {
2670 gchar *utf8;
2671
2672 g_string_prepend_c (filename, G_DIR_SEPARATOR);
2673 utf8 = g_filename_display_name (node->data);
2674 g_string_prepend (filename, utf8);
2675 g_free (utf8);
2676 }
2677 #else
2678 {
2679 gchar *utf8;
2680
2681 /* Otherwise, we already have it, so just use it. */
2682 node = name;
2683 filename = g_string_new (NULL);
2684 utf8 = g_filename_display_name (node->data);
2685 g_string_append (filename, utf8);
2686 g_free (utf8);
2687 }
2688 #endif
2689
2690 g_set_error (error, G_IO_ERROR, g_io_error_from_errno (saved_errno),
2691 _("Could not determine the disk usage of %s: %s"),
2692 filename->str, g_strerror (saved_errno));
2693
2694 g_string_free (filename, TRUE);
2695
2696 return FALSE;
2697 }
2698
2699 else
2700 /* We're not reporting this error... */
2701 return TRUE;
2702 }
2703
2704 typedef struct
2705 {
2706 GFileMeasureFlags flags;
2707 dev_t contained_on;
2708 GCancellable *cancellable;
2709
2710 GFileMeasureProgressCallback progress_callback;
2711 gpointer progress_data;
2712
2713 guint64 disk_usage;
2714 guint64 num_dirs;
2715 guint64 num_files;
2716
2717 guint64 last_progress_report;
2718 } MeasureState;
2719
2720 static gboolean
2721 g_local_file_measure_size_of_contents (gint fd,
2722 GSList *dir_name,
2723 MeasureState *state,
2724 GError **error);
2725
2726 static gboolean
g_local_file_measure_size_of_file(gint parent_fd,GSList * name,MeasureState * state,GError ** error)2727 g_local_file_measure_size_of_file (gint parent_fd,
2728 GSList *name,
2729 MeasureState *state,
2730 GError **error)
2731 {
2732 GLocalFileStat buf;
2733
2734 if (g_cancellable_set_error_if_cancelled (state->cancellable, error))
2735 return FALSE;
2736
2737 #if defined (AT_FDCWD)
2738 if (fstatat (parent_fd, name->data, &buf, AT_SYMLINK_NOFOLLOW) != 0)
2739 {
2740 int errsv = errno;
2741 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2742 }
2743 #elif defined (HAVE_LSTAT) || !defined (G_OS_WIN32)
2744 if (g_lstat (name->data, &buf) != 0)
2745 {
2746 int errsv = errno;
2747 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2748 }
2749 #else /* !AT_FDCWD && !HAVE_LSTAT && G_OS_WIN32 */
2750 if (GLIB_PRIVATE_CALL (g_win32_lstat_utf8) (name->data, &buf) != 0)
2751 {
2752 int errsv = errno;
2753 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2754 }
2755 #endif
2756
2757 if (name->next)
2758 {
2759 /* If not at the toplevel, check for a device boundary. */
2760
2761 if (state->flags & G_FILE_MEASURE_NO_XDEV)
2762 if (state->contained_on != buf.st_dev)
2763 return TRUE;
2764 }
2765 else
2766 {
2767 /* If, however, this is the toplevel, set the device number so
2768 * that recursive invocations can compare against it.
2769 */
2770 state->contained_on = buf.st_dev;
2771 }
2772
2773 #if defined (G_OS_WIN32)
2774 if (~state->flags & G_FILE_MEASURE_APPARENT_SIZE)
2775 state->disk_usage += buf.allocated_size;
2776 else
2777 #elif defined (HAVE_STRUCT_STAT_ST_BLOCKS)
2778 if (~state->flags & G_FILE_MEASURE_APPARENT_SIZE)
2779 state->disk_usage += buf.st_blocks * G_GUINT64_CONSTANT (512);
2780 else
2781 #endif
2782 state->disk_usage += buf.st_size;
2783
2784 if (S_ISDIR (buf.st_mode))
2785 state->num_dirs++;
2786 else
2787 state->num_files++;
2788
2789 if (state->progress_callback)
2790 {
2791 /* We could attempt to do some cleverness here in order to avoid
2792 * calling clock_gettime() so much, but we're doing stats and opens
2793 * all over the place already...
2794 */
2795 if (state->last_progress_report)
2796 {
2797 guint64 now;
2798
2799 now = g_get_monotonic_time ();
2800
2801 if (state->last_progress_report + 200 * G_TIME_SPAN_MILLISECOND < now)
2802 {
2803 (* state->progress_callback) (TRUE,
2804 state->disk_usage, state->num_dirs, state->num_files,
2805 state->progress_data);
2806 state->last_progress_report = now;
2807 }
2808 }
2809 else
2810 {
2811 /* We must do an initial report to inform that more reports
2812 * will be coming.
2813 */
2814 (* state->progress_callback) (TRUE, 0, 0, 0, state->progress_data);
2815 state->last_progress_report = g_get_monotonic_time ();
2816 }
2817 }
2818
2819 if (S_ISDIR (buf.st_mode))
2820 {
2821 int dir_fd = -1;
2822 #ifdef AT_FDCWD
2823 int errsv;
2824 #endif
2825
2826 if (g_cancellable_set_error_if_cancelled (state->cancellable, error))
2827 return FALSE;
2828
2829 #ifdef AT_FDCWD
2830 #ifdef HAVE_OPEN_O_DIRECTORY
2831 dir_fd = openat (parent_fd, name->data, O_RDONLY|O_DIRECTORY);
2832 #else
2833 dir_fd = openat (parent_fd, name->data, O_RDONLY);
2834 #endif
2835 errsv = errno;
2836 if (dir_fd < 0)
2837 return g_local_file_measure_size_error (state->flags, errsv, name, error);
2838 #endif
2839
2840 if (!g_local_file_measure_size_of_contents (dir_fd, name, state, error))
2841 return FALSE;
2842 }
2843
2844 return TRUE;
2845 }
2846
2847 static gboolean
g_local_file_measure_size_of_contents(gint fd,GSList * dir_name,MeasureState * state,GError ** error)2848 g_local_file_measure_size_of_contents (gint fd,
2849 GSList *dir_name,
2850 MeasureState *state,
2851 GError **error)
2852 {
2853 gboolean success = TRUE;
2854 const gchar *name;
2855 GDir *dir;
2856
2857 #ifdef AT_FDCWD
2858 {
2859 /* If this fails, we want to preserve the errno from fopendir() */
2860 DIR *dirp;
2861 dirp = fdopendir (fd);
2862 dir = dirp ? GLIB_PRIVATE_CALL(g_dir_new_from_dirp) (dirp) : NULL;
2863 }
2864 #else
2865 dir = GLIB_PRIVATE_CALL(g_dir_open_with_errno) (dir_name->data, 0);
2866 #endif
2867
2868 if (dir == NULL)
2869 {
2870 gint saved_errno = errno;
2871
2872 #ifdef AT_FDCWD
2873 close (fd);
2874 #endif
2875
2876 return g_local_file_measure_size_error (state->flags, saved_errno, dir_name, error);
2877 }
2878
2879 while (success && (name = g_dir_read_name (dir)))
2880 {
2881 GSList node;
2882
2883 node.next = dir_name;
2884 #ifdef AT_FDCWD
2885 node.data = (gchar *) name;
2886 #else
2887 node.data = g_build_filename (dir_name->data, name, NULL);
2888 #endif
2889
2890 success = g_local_file_measure_size_of_file (fd, &node, state, error);
2891
2892 #ifndef AT_FDCWD
2893 g_free (node.data);
2894 #endif
2895 }
2896
2897 g_dir_close (dir);
2898
2899 return success;
2900 }
2901
2902 static gboolean
g_local_file_measure_disk_usage(GFile * file,GFileMeasureFlags flags,GCancellable * cancellable,GFileMeasureProgressCallback progress_callback,gpointer progress_data,guint64 * disk_usage,guint64 * num_dirs,guint64 * num_files,GError ** error)2903 g_local_file_measure_disk_usage (GFile *file,
2904 GFileMeasureFlags flags,
2905 GCancellable *cancellable,
2906 GFileMeasureProgressCallback progress_callback,
2907 gpointer progress_data,
2908 guint64 *disk_usage,
2909 guint64 *num_dirs,
2910 guint64 *num_files,
2911 GError **error)
2912 {
2913 GLocalFile *local_file = G_LOCAL_FILE (file);
2914 MeasureState state = { 0, };
2915 gint root_fd = -1;
2916 GSList node;
2917
2918 state.flags = flags;
2919 state.cancellable = cancellable;
2920 state.progress_callback = progress_callback;
2921 state.progress_data = progress_data;
2922
2923 #ifdef AT_FDCWD
2924 root_fd = AT_FDCWD;
2925 #endif
2926
2927 node.data = local_file->filename;
2928 node.next = NULL;
2929
2930 if (!g_local_file_measure_size_of_file (root_fd, &node, &state, error))
2931 return FALSE;
2932
2933 if (disk_usage)
2934 *disk_usage = state.disk_usage;
2935
2936 if (num_dirs)
2937 *num_dirs = state.num_dirs;
2938
2939 if (num_files)
2940 *num_files = state.num_files;
2941
2942 return TRUE;
2943 }
2944
2945 static void
g_local_file_file_iface_init(GFileIface * iface)2946 g_local_file_file_iface_init (GFileIface *iface)
2947 {
2948 iface->dup = g_local_file_dup;
2949 iface->hash = g_local_file_hash;
2950 iface->equal = g_local_file_equal;
2951 iface->is_native = g_local_file_is_native;
2952 iface->has_uri_scheme = g_local_file_has_uri_scheme;
2953 iface->get_uri_scheme = g_local_file_get_uri_scheme;
2954 iface->get_basename = g_local_file_get_basename;
2955 iface->get_path = g_local_file_get_path;
2956 iface->get_uri = g_local_file_get_uri;
2957 iface->get_parse_name = g_local_file_get_parse_name;
2958 iface->get_parent = g_local_file_get_parent;
2959 iface->prefix_matches = g_local_file_prefix_matches;
2960 iface->get_relative_path = g_local_file_get_relative_path;
2961 iface->resolve_relative_path = g_local_file_resolve_relative_path;
2962 iface->get_child_for_display_name = g_local_file_get_child_for_display_name;
2963 iface->set_display_name = g_local_file_set_display_name;
2964 iface->enumerate_children = g_local_file_enumerate_children;
2965 iface->query_info = g_local_file_query_info;
2966 iface->query_filesystem_info = g_local_file_query_filesystem_info;
2967 iface->find_enclosing_mount = g_local_file_find_enclosing_mount;
2968 iface->query_settable_attributes = g_local_file_query_settable_attributes;
2969 iface->query_writable_namespaces = g_local_file_query_writable_namespaces;
2970 iface->set_attribute = g_local_file_set_attribute;
2971 iface->set_attributes_from_info = g_local_file_set_attributes_from_info;
2972 iface->read_fn = g_local_file_read;
2973 iface->append_to = g_local_file_append_to;
2974 iface->create = g_local_file_create;
2975 iface->replace = g_local_file_replace;
2976 iface->open_readwrite = g_local_file_open_readwrite;
2977 iface->create_readwrite = g_local_file_create_readwrite;
2978 iface->replace_readwrite = g_local_file_replace_readwrite;
2979 iface->delete_file = g_local_file_delete;
2980 iface->trash = g_local_file_trash;
2981 iface->make_directory = g_local_file_make_directory;
2982 iface->make_symbolic_link = g_local_file_make_symbolic_link;
2983 iface->copy = g_local_file_copy;
2984 iface->move = g_local_file_move;
2985 iface->monitor_dir = g_local_file_monitor_dir;
2986 iface->monitor_file = g_local_file_monitor_file;
2987 iface->measure_disk_usage = g_local_file_measure_disk_usage;
2988
2989 iface->supports_thread_contexts = TRUE;
2990 }
2991