gio/glocalfile.c

   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 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, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Alexander Larsson <alexl@redhat.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <fcntl.h>
  30 #ifdef HAVE_UNISTD_H
  31 #include <unistd.h>
  32 #endif
  33
  34 #if HAVE_SYS_STATFS_H
  35 #include <sys/statfs.h>
  36 #endif
  37 #if HAVE_SYS_STATVFS_H
  38 #include <sys/statvfs.h>
  39 #endif
  40 #if HAVE_SYS_VFS_H
  41 #include <sys/vfs.h>
  42 #elif HAVE_SYS_MOUNT_H
  43 #if HAVE_SYS_PARAM_H
  44 #include <sys/param.h>
  45 #endif
  46 #include <sys/mount.h>
  47 #endif
  48
  49 #ifndef O_BINARY
  50 #define O_BINARY 0
  51 #endif
  52
  53 #if defined(HAVE_STATFS) && defined(HAVE_STATVFS)
  54 /* Some systems have both statfs and statvfs, pick the
  55    most "native" for these */
  56 # if !defined(HAVE_STRUCT_STATFS_F_BAVAIL)
  57    /* on solaris and irix, statfs doesn't even have the
  58       f_bavail field */
  59 #  define USE_STATVFS
  60 # else
  61   /* at least on linux, statfs is the actual syscall */
  62 #  define USE_STATFS
  63 # endif
  64
  65 #elif defined(HAVE_STATFS)
  66
  67 # define USE_STATFS
  68
  69 #elif defined(HAVE_STATVFS)
  70
  71 # define USE_STATVFS
  72
  73 #endif
  74
  75 #include "gfileattribute.h"
  76 #include "glocalfile.h"
  77 #include "glocalfileinfo.h"
  78 #include "glocalfileenumerator.h"
  79 #include "glocalfileinputstream.h"
  80 #include "glocalfileoutputstream.h"
  81 #include "glocalfileiostream.h"
  82 #include "glocaldirectorymonitor.h"
  83 #include "glocalfilemonitor.h"
  84 #include "gmountprivate.h"
  85 #include "gunixmounts.h"
  86 #include "gioerror.h"
  87 #include <glib/gstdio.h>
  88 #include "glibintl.h"
  89
  90 #ifdef G_OS_WIN32
  91 #define _WIN32_WINNT 0x0500
  92 #include <windows.h>
  93 #include <io.h>
  94 #include <direct.h>
  95
  96 #ifndef FILE_READ_ONLY_VOLUME
  97 #define FILE_READ_ONLY_VOLUME           0x00080000
  98 #endif
  99
 100 #ifndef S_ISDIR
 101 #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
 102 #endif
 103 #ifndef S_ISLNK
 104 #define S_ISLNK(m) (0)
 105 #endif
 106 #endif
 107
 108 #include "gioalias.h"
 109
 110 static void g_local_file_file_iface_init (GFileIface *iface);
 111
 112 static GFileAttributeInfoList *local_writable_attributes = NULL;
 113 static /* GFileAttributeInfoList * */ gsize local_writable_namespaces = 0;
 114
 115 struct _GLocalFile
 116 {
 117   GObject parent_instance;
 118
 119   char *filename;
 120 };
 121
 122 #define g_local_file_get_type _g_local_file_get_type
 123 G_DEFINE_TYPE_WITH_CODE (GLocalFile, g_local_file, G_TYPE_OBJECT,
 124                          G_IMPLEMENT_INTERFACE (G_TYPE_FILE,
 125                                                 g_local_file_file_iface_init))
 126
 127 static char *find_mountpoint_for (const char *file, dev_t dev);
 128
 129 static void
 130 g_local_file_finalize (GObject *object)
 131 {
 132   GLocalFile *local;
 133
 134   local = G_LOCAL_FILE (object);
 135
 136   g_free (local->filename);
 137
 138   G_OBJECT_CLASS (g_local_file_parent_class)->finalize (object);
 139 }
 140
 141 static void
 142 g_local_file_class_init (GLocalFileClass *klass)
 143 {
 144   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 145   GFileAttributeInfoList *list;
 146
 147   gobject_class->finalize = g_local_file_finalize;
 148
 149   /* Set up attribute lists */
 150
 151   /* Writable attributes: */
 152
 153   list = g_file_attribute_info_list_new ();
 154
 155   g_file_attribute_info_list_add (list,
 156                                   G_FILE_ATTRIBUTE_UNIX_MODE,
 157                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 158                                   G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
 159                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 160
 161 #ifdef HAVE_CHOWN
 162   g_file_attribute_info_list_add (list,
 163                                   G_FILE_ATTRIBUTE_UNIX_UID,
 164                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 165                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 166   g_file_attribute_info_list_add (list,
 167                                   G_FILE_ATTRIBUTE_UNIX_GID,
 168                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 169                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 170 #endif
 171
 172 #ifdef HAVE_SYMLINK
 173   g_file_attribute_info_list_add (list,
 174                                   G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET,
 175                                   G_FILE_ATTRIBUTE_TYPE_BYTE_STRING,
 176                                   0);
 177 #endif
 178
 179 #ifdef HAVE_UTIMES
 180   g_file_attribute_info_list_add (list,
 181                                   G_FILE_ATTRIBUTE_TIME_MODIFIED,
 182                                   G_FILE_ATTRIBUTE_TYPE_UINT64,
 183                                   G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
 184                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 185   g_file_attribute_info_list_add (list,
 186                                   G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC,
 187                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 188                                   G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
 189                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 190   /* When copying, the target file is accessed. Replicating
 191    * the source access time does not make sense in this case.
 192    */
 193   g_file_attribute_info_list_add (list,
 194                                   G_FILE_ATTRIBUTE_TIME_ACCESS,
 195                                   G_FILE_ATTRIBUTE_TYPE_UINT64,
 196                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 197   g_file_attribute_info_list_add (list,
 198                                   G_FILE_ATTRIBUTE_TIME_ACCESS_USEC,
 199                                   G_FILE_ATTRIBUTE_TYPE_UINT32,
 200                                   G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
 201 #endif
 202
 203   local_writable_attributes = list;
 204 }
 205
 206 static void
 207 g_local_file_init (GLocalFile *local)
 208 {
 209 }
 210
 211
 212 static char *
 213 canonicalize_filename (const char *filename)
 214 {
 215   char *canon, *start, *p, *q;
 216   char *cwd;
 217   int i;
 218
 219   if (!g_path_is_absolute (filename))
 220     {
 221       cwd = g_get_current_dir ();
 222       canon = g_build_filename (cwd, filename, NULL);
 223       g_free (cwd);
 224     }
 225   else
 226     canon = g_strdup (filename);
 227
 228   start = (char *)g_path_skip_root (canon);
 229
 230   if (start == NULL)
 231     {
 232       /* This shouldn't really happen, as g_get_current_dir() should
 233          return an absolute pathname, but bug 573843 shows this is
 234          not always happening */
 235       g_free (canon);
 236       return g_build_filename (G_DIR_SEPARATOR_S, filename, NULL);
 237     }
 238
 239   /* POSIX allows double slashes at the start to
 240    * mean something special (as does windows too).
 241    * So, "//" != "/", but more than two slashes
 242    * is treated as "/".
 243    */
 244   i = 0;
 245   for (p = start - 1;
 246        (p >= canon) &&
 247          G_IS_DIR_SEPARATOR (*p);
 248        p--)
 249     i++;
 250   if (i > 2)
 251     {
 252       i -= 1;
 253       start -= i;
 254       memmove (start, start+i, strlen (start+i)+1);
 255     }
 256
 257   p = start;
 258   while (*p != 0)
 259     {
 260       if (p[0] == '.' && (p[1] == 0 || G_IS_DIR_SEPARATOR (p[1])))
 261         {
 262           memmove (p, p+1, strlen (p+1)+1);
 263         }
 264       else if (p[0] == '.' && p[1] == '.' && (p[2] == 0 || G_IS_DIR_SEPARATOR (p[2])))
 265         {
 266           q = p + 2;
 267           /* Skip previous separator */
 268           p = p - 2;
 269           if (p < start)
 270             p = start;
 271           while (p > start && !G_IS_DIR_SEPARATOR (*p))
 272             p--;
 273           if (G_IS_DIR_SEPARATOR (*p))
 274             *p++ = G_DIR_SEPARATOR;
 275           memmove (p, q, strlen (q)+1);
 276         }
 277       else
 278         {
 279           /* Skip until next separator */
 280           while (*p != 0 && !G_IS_DIR_SEPARATOR (*p))
 281             p++;
 282
 283           if (*p != 0)
 284             {
 285               /* Canonicalize one separator */
 286               *p++ = G_DIR_SEPARATOR;
 287             }
 288         }
 289
 290       /* Remove additional separators */
 291       q = p;
 292       while (*q && G_IS_DIR_SEPARATOR (*q))
 293         q++;
 294
 295       if (p != q)
 296         memmove (p, q, strlen (q)+1);
 297     }
 298
 299   /* Remove trailing slashes */
 300   if (p > start && G_IS_DIR_SEPARATOR (*(p-1)))
 301     *(p-1) = 0;
 302
 303   return canon;
 304 }
 305
 306 /**
 307  * _g_local_file_new:
 308  * @filename: filename of the file to create.
 309  *
 310  * Returns: new local #GFile.
 311  **/
 312 GFile *
 313 _g_local_file_new (const char *filename)
 314 {
 315   GLocalFile *local;
 316
 317   local = g_object_new (G_TYPE_LOCAL_FILE, NULL);
 318   local->filename = canonicalize_filename (filename);
 319
 320   return G_FILE (local);
 321 }
 322
 323 static gboolean
 324 g_local_file_is_native (GFile *file)
 325 {
 326   return TRUE;
 327 }
 328
 329 static gboolean
 330 g_local_file_has_uri_scheme (GFile      *file,
 331                              const char *uri_scheme)
 332 {
 333   return g_ascii_strcasecmp (uri_scheme, "file") == 0;
 334 }
 335
 336 static char *
 337 g_local_file_get_uri_scheme (GFile *file)
 338 {
 339   return g_strdup ("file");
 340 }
 341
 342 static char *
 343 g_local_file_get_basename (GFile *file)
 344 {
 345   return g_path_get_basename (G_LOCAL_FILE (file)->filename);
 346 }
 347
 348 static char *
 349 g_local_file_get_path (GFile *file)
 350 {
 351   return g_strdup (G_LOCAL_FILE (file)->filename);
 352 }
 353
 354 static char *
 355 g_local_file_get_uri (GFile *file)
 356 {
 357   return g_filename_to_uri (G_LOCAL_FILE (file)->filename, NULL, NULL);
 358 }
 359
 360 static gboolean
 361 get_filename_charset (const gchar **filename_charset)
 362 {
 363   const gchar **charsets;
 364   gboolean is_utf8;
 365
 366   is_utf8 = g_get_filename_charsets (&charsets);
 367
 368   if (filename_charset)
 369     *filename_charset = charsets[0];
 370
 371   return is_utf8;
 372 }
 373
 374 static gboolean
 375 name_is_valid_for_display (const char *string,
 376                            gboolean    is_valid_utf8)
 377 {
 378   char c;
 379
 380   if (!is_valid_utf8 &&
 381       !g_utf8_validate (string, -1, NULL))
 382     return FALSE;
 383
 384   while ((c = *string++) != 0)
 385     {
 386       if (g_ascii_iscntrl (c))
 387         return FALSE;
 388     }
 389
 390   return TRUE;
 391 }
 392
 393 static char *
 394 g_local_file_get_parse_name (GFile *file)
 395 {
 396   const char *filename;
 397   char *parse_name;
 398   const gchar *charset;
 399   char *utf8_filename;
 400   char *roundtripped_filename;
 401   gboolean free_utf8_filename;
 402   gboolean is_valid_utf8;
 403   char *escaped_path;
 404
 405   filename = G_LOCAL_FILE (file)->filename;
 406   if (get_filename_charset (&charset))
 407     {
 408       utf8_filename = (char *)filename;
 409       free_utf8_filename = FALSE;
 410       is_valid_utf8 = FALSE; /* Can't guarantee this */
 411     }
 412   else
 413     {
 414       utf8_filename = g_convert (filename, -1,
 415                                  "UTF-8", charset, NULL, NULL, NULL);
 416       free_utf8_filename = TRUE;
 417       is_valid_utf8 = TRUE;
 418
 419       if (utf8_filename != NULL)
 420         {
 421           /* Make sure we can roundtrip: */
 422           roundtripped_filename = g_convert (utf8_filename, -1,
 423                                              charset, "UTF-8", NULL, NULL, NULL);
 424
 425           if (roundtripped_filename == NULL ||
 426               strcmp (utf8_filename, roundtripped_filename) != 0)
 427             {
 428               g_free (utf8_filename);
 429               utf8_filename = NULL;
 430             }
 431
 432           g_free (roundtripped_filename);
 433         }
 434     }
 435
 436   if (utf8_filename != NULL &&
 437       name_is_valid_for_display (utf8_filename, is_valid_utf8))
 438     {
 439       if (free_utf8_filename)
 440         parse_name = utf8_filename;
 441       else
 442         parse_name = g_strdup (utf8_filename);
 443     }
 444   else
 445     {
 446       escaped_path = g_uri_escape_string (filename,
 447                                           G_URI_RESERVED_CHARS_ALLOWED_IN_PATH_ELEMENT "/",
 448                                           TRUE);
 449       parse_name = g_strconcat ("file://",
 450                                 (*escaped_path != '/') ? "/" : "",
 451                                 escaped_path,
 452                                 NULL);
 453
 454       g_free (escaped_path);
 455
 456       if (free_utf8_filename)
 457         g_free (utf8_filename);
 458     }
 459
 460   return parse_name;
 461 }
 462
 463 static GFile *
 464 g_local_file_get_parent (GFile *file)
 465 {
 466   GLocalFile *local = G_LOCAL_FILE (file);
 467   const char *non_root;
 468   char *dirname;
 469   GFile *parent;
 470
 471   /* Check for root */
 472   non_root = g_path_skip_root (local->filename);
 473   if (*non_root == 0)
 474     return NULL;
 475
 476   dirname = g_path_get_dirname (local->filename);
 477   parent = _g_local_file_new (dirname);
 478   g_free (dirname);
 479   return parent;
 480 }
 481
 482 static GFile *
 483 g_local_file_dup (GFile *file)
 484 {
 485   GLocalFile *local = G_LOCAL_FILE (file);
 486
 487   return _g_local_file_new (local->filename);
 488 }
 489
 490 static guint
 491 g_local_file_hash (GFile *file)
 492 {
 493   GLocalFile *local = G_LOCAL_FILE (file);
 494
 495   return g_str_hash (local->filename);
 496 }
 497
 498 static gboolean
 499 g_local_file_equal (GFile *file1,
 500                     GFile *file2)
 501 {
 502   GLocalFile *local1 = G_LOCAL_FILE (file1);
 503   GLocalFile *local2 = G_LOCAL_FILE (file2);
 504
 505   return g_str_equal (local1->filename, local2->filename);
 506 }
 507
 508 static const char *
 509 match_prefix (const char *path,
 510               const char *prefix)
 511 {
 512   int prefix_len;
 513
 514   prefix_len = strlen (prefix);
 515   if (strncmp (path, prefix, prefix_len) != 0)
 516     return NULL;
 517
 518   /* Handle the case where prefix is the root, so that
 519    * the IS_DIR_SEPRARATOR check below works */
 520   if (prefix_len > 0 &&
 521       G_IS_DIR_SEPARATOR (prefix[prefix_len-1]))
 522     prefix_len--;
 523
 524   return path + prefix_len;
 525 }
 526
 527 static gboolean
 528 g_local_file_prefix_matches (GFile *parent,
 529                              GFile *descendant)
 530 {
 531   GLocalFile *parent_local = G_LOCAL_FILE (parent);
 532   GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
 533   const char *remainder;
 534
 535   remainder = match_prefix (descendant_local->filename, parent_local->filename);
 536   if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
 537     return TRUE;
 538   return FALSE;
 539 }
 540
 541 static char *
 542 g_local_file_get_relative_path (GFile *parent,
 543                                 GFile *descendant)
 544 {
 545   GLocalFile *parent_local = G_LOCAL_FILE (parent);
 546   GLocalFile *descendant_local = G_LOCAL_FILE (descendant);
 547   const char *remainder;
 548
 549   remainder = match_prefix (descendant_local->filename, parent_local->filename);
 550
 551   if (remainder != NULL && G_IS_DIR_SEPARATOR (*remainder))
 552     return g_strdup (remainder + 1);
 553   return NULL;
 554 }
 555
 556 static GFile *
 557 g_local_file_resolve_relative_path (GFile      *file,
 558                                     const char *relative_path)
 559 {
 560   GLocalFile *local = G_LOCAL_FILE (file);
 561   char *filename;
 562   GFile *child;
 563
 564   if (g_path_is_absolute (relative_path))
 565     return _g_local_file_new (relative_path);
 566
 567   filename = g_build_filename (local->filename, relative_path, NULL);
 568   child = _g_local_file_new (filename);
 569   g_free (filename);
 570
 571   return child;
 572 }
 573
 574 static GFileEnumerator *
 575 g_local_file_enumerate_children (GFile                *file,
 576                                  const char           *attributes,
 577                                  GFileQueryInfoFlags   flags,
 578                                  GCancellable         *cancellable,
 579                                  GError              **error)
 580 {
 581   GLocalFile *local = G_LOCAL_FILE (file);
 582   return _g_local_file_enumerator_new (local,
 583                                        attributes, flags,
 584                                        cancellable, error);
 585 }
 586
 587 static GFile *
 588 g_local_file_get_child_for_display_name (GFile        *file,
 589                                          const char   *display_name,
 590                                          GError      **error)
 591 {
 592   GFile *new_file;
 593   char *basename;
 594
 595   basename = g_filename_from_utf8 (display_name, -1, NULL, NULL, NULL);
 596   if (basename == NULL)
 597     {
 598       g_set_error (error, G_IO_ERROR,
 599                    G_IO_ERROR_INVALID_FILENAME,
 600                    _("Invalid filename %s"), display_name);
 601       return NULL;
 602     }
 603
 604   new_file = g_file_get_child (file, basename);
 605   g_free (basename);
 606
 607   return new_file;
 608 }
 609
 610 #ifdef USE_STATFS
 611 static const char *
 612 get_fs_type (long f_type)
 613 {
 614   /* filesystem ids taken from linux manpage */
 615   switch (f_type)
 616     {
 617     case 0xadf5:
 618       return "adfs";
 619     case 0x5346414f:
 620       return "afs";
 621     case 0x0187:
 622       return "autofs";
 623     case 0xADFF:
 624       return "affs";
 625     case 0x42465331:
 626       return "befs";
 627     case 0x1BADFACE:
 628       return "bfs";
 629     case 0x9123683E:
 630       return "btrfs";
 631     case 0xFF534D42:
 632       return "cifs";
 633     case 0x73757245:
 634       return "coda";
 635     case 0x012FF7B7:
 636       return "coh";
 637     case 0x28cd3d45:
 638       return "cramfs";
 639     case 0x1373:
 640       return "devfs";
 641     case 0x00414A53:
 642       return "efs";
 643     case 0x137D:
 644       return "ext";
 645     case 0xEF51:
 646       return "ext2";
 647     case 0xEF53:
 648       return "ext3/ext4";
 649     case 0x4244:
 650       return "hfs";
 651     case 0xF995E849:
 652       return "hpfs";
 653     case 0x958458f6:
 654       return "hugetlbfs";
 655     case 0x9660:
 656       return "isofs";
 657     case 0x72b6:
 658       return "jffs2";
 659     case 0x3153464a:
 660       return "jfs";
 661     case 0x137F:
 662       return "minix";
 663     case 0x138F:
 664       return "minix2";
 665     case 0x2468:
 666       return "minix2";
 667     case 0x2478:
 668       return "minix22";
 669     case 0x4d44:
 670       return "msdos";
 671     case 0x564c:
 672       return "ncp";
 673     case 0x6969:
 674       return "nfs";
 675     case 0x5346544e:
 676       return "ntfs";
 677     case 0x9fa1:
 678       return "openprom";
 679     case 0x9fa0:
 680       return "proc";
 681     case 0x002f:
 682       return "qnx4";
 683     case 0x52654973:
 684       return "reiserfs";
 685     case 0x7275:
 686       return "romfs";
 687     case 0x517B:
 688       return "smb";
 689     case 0x73717368:
 690       return "squashfs";
 691     case 0x012FF7B6:
 692       return "sysv2";
 693     case 0x012FF7B5:
 694       return "sysv4";
 695     case 0x01021994:
 696       return "tmpfs";
 697     case 0x15013346:
 698       return "udf";
 699     case 0x00011954:
 700       return "ufs";
 701     case 0x9fa2:
 702       return "usbdevice";
 703     case 0xa501FCF5:
 704       return "vxfs";
 705     case 0x012FF7B4:
 706       return "xenix";
 707     case 0x58465342:
 708       return "xfs";
 709     case 0x012FD16D:
 710       return "xiafs";
 711     default:
 712       return NULL;
 713     }
 714 }
 715 #endif
 716
 717 #ifndef G_OS_WIN32
 718
 719 G_LOCK_DEFINE_STATIC(mount_info_hash);
 720 static GHashTable *mount_info_hash = NULL;
 721 static guint64 mount_info_hash_cache_time = 0;
 722
 723 typedef enum {
 724   MOUNT_INFO_READONLY = 1<<0
 725 } MountInfo;
 726
 727 static gboolean
 728 device_equal (gconstpointer v1,
 729               gconstpointer v2)
 730 {
 731   return *(dev_t *)v1 == *(dev_t *)v2;
 732 }
 733
 734 static guint
 735 device_hash (gconstpointer v)
 736 {
 737   return (guint) *(dev_t *)v;
 738 }
 739
 740 static void
 741 get_mount_info (GFileInfo             *fs_info,
 742                 const char            *path,
 743                 GFileAttributeMatcher *matcher)
 744 {
 745   struct stat buf;
 746   gboolean got_info;
 747   gpointer info_as_ptr;
 748   guint mount_info;
 749   char *mountpoint;
 750   dev_t *dev;
 751   GUnixMountEntry *mount;
 752   guint64 cache_time;
 753
 754   if (g_lstat (path, &buf) != 0)
 755     return;
 756
 757   G_LOCK (mount_info_hash);
 758
 759   if (mount_info_hash == NULL)
 760     mount_info_hash = g_hash_table_new_full (device_hash, device_equal,
 761                                              g_free, NULL);
 762
 763
 764   if (g_unix_mounts_changed_since (mount_info_hash_cache_time))
 765     g_hash_table_remove_all (mount_info_hash);
 766
 767   got_info = g_hash_table_lookup_extended (mount_info_hash,
 768                                            &buf.st_dev,
 769                                            NULL,
 770                                            &info_as_ptr);
 771
 772   G_UNLOCK (mount_info_hash);
 773
 774   mount_info = GPOINTER_TO_UINT (info_as_ptr);
 775
 776   if (!got_info)
 777     {
 778       mount_info = 0;
 779
 780       mountpoint = find_mountpoint_for (path, buf.st_dev);
 781       if (mountpoint == NULL)
 782         mountpoint = g_strdup ("/");
 783
 784       mount = g_unix_mount_at (mountpoint, &cache_time);
 785       if (mount)
 786         {
 787           if (g_unix_mount_is_readonly (mount))
 788             mount_info |= MOUNT_INFO_READONLY;
 789
 790           g_unix_mount_free (mount);
 791         }
 792
 793       g_free (mountpoint);
 794
 795       dev = g_new0 (dev_t, 1);
 796       *dev = buf.st_dev;
 797
 798       G_LOCK (mount_info_hash);
 799       mount_info_hash_cache_time = cache_time;
 800       g_hash_table_insert (mount_info_hash, dev, GUINT_TO_POINTER (mount_info));
 801       G_UNLOCK (mount_info_hash);
 802     }
 803
 804   if (mount_info & MOUNT_INFO_READONLY)
 805     g_file_info_set_attribute_boolean (fs_info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
 806 }
 807
 808 #endif
 809
 810 #ifdef G_OS_WIN32
 811
 812 static gboolean
 813 is_xp_or_later (void)
 814 {
 815   static int result = -1;
 816
 817   if (result == -1)
 818     {
 819 #ifndef _MSC_VER
 820       OSVERSIONINFOEX ver_info = {0};
 821       DWORDLONG cond_mask = 0;
 822       int op = VER_GREATER_EQUAL;
 823
 824       ver_info.dwOSVersionInfoSize = sizeof ver_info;
 825       ver_info.dwMajorVersion = 5;
 826       ver_info.dwMinorVersion = 1;
 827
 828       VER_SET_CONDITION (cond_mask, VER_MAJORVERSION, op);
 829       VER_SET_CONDITION (cond_mask, VER_MINORVERSION, op);
 830
 831       result = VerifyVersionInfo (&ver_info,
 832                                   VER_MAJORVERSION | VER_MINORVERSION,
 833                                   cond_mask) != 0;
 834 #else
 835       result = ((DWORD)(LOBYTE (LOWORD (GetVersion ())))) >= 5;
 836 #endif
 837     }
 838
 839   return result;
 840 }
 841
 842 static wchar_t *
 843 get_volume_for_path (const char *path)
 844 {
 845   long len;
 846   wchar_t *wpath;
 847   wchar_t *result;
 848
 849   wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL);
 850   result = g_new (wchar_t, MAX_PATH);
 851
 852   if (!GetVolumePathNameW (wpath, result, MAX_PATH))
 853     {
 854       char *msg = g_win32_error_message (GetLastError ());
 855       g_critical ("GetVolumePathName failed: %s", msg);
 856       g_free (msg);
 857       g_free (result);
 858       g_free (wpath);
 859       return NULL;
 860     }
 861
 862   len = wcslen (result);
 863   if (len > 0 && result[len-1] != L'\\')
 864     {
 865       result = g_renew (wchar_t, result, len + 2);
 866       result[len] = L'\\';
 867       result[len + 1] = 0;
 868     }
 869
 870   g_free (wpath);
 871   return result;
 872 }
 873
 874 static char *
 875 find_mountpoint_for (const char *file, dev_t dev)
 876 {
 877   wchar_t *wpath;
 878   char *utf8_path;
 879
 880   wpath = get_volume_for_path (file);
 881   if (!wpath)
 882     return NULL;
 883
 884   utf8_path = g_utf16_to_utf8 (wpath, -1, NULL, NULL, NULL);
 885
 886   g_free (wpath);
 887   return utf8_path;
 888 }
 889
 890 static void
 891 get_filesystem_readonly (GFileInfo  *info,
 892                          const char *path)
 893 {
 894   wchar_t *rootdir;
 895
 896   rootdir = get_volume_for_path (path);
 897
 898   if (rootdir)
 899     {
 900       if (is_xp_or_later ())
 901         {
 902           DWORD flags;
 903           if (GetVolumeInformationW (rootdir, NULL, 0, NULL, NULL, &flags, NULL, 0))
 904             g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY,
 905                                                (flags & FILE_READ_ONLY_VOLUME) != 0);
 906         }
 907       else
 908         {
 909           if (GetDriveTypeW (rootdir) == DRIVE_CDROM)
 910             g_file_info_set_attribute_boolean (info, G_FILE_ATTRIBUTE_FILESYSTEM_READONLY, TRUE);
 911         }
 912     }
 913
 914   g_free (rootdir);
 915 }
 916
 917 #endif /* G_OS_WIN32 */
 918
 919 static GFileInfo *
 920 g_local_file_query_filesystem_info (GFile         *file,
 921                                     const char    *attributes,
 922                                     GCancellable  *cancellable,
 923                                     GError       **error)
 924 {
 925   GLocalFile *local = G_LOCAL_FILE (file);
 926   GFileInfo *info;
 927   int statfs_result = 0;
 928   gboolean no_size;
 929 #ifndef G_OS_WIN32
 930   guint64 block_size;
 931   const char *fstype;
 932 #ifdef USE_STATFS
 933   struct statfs statfs_buffer;
 934 #elif defined(USE_STATVFS)
 935   struct statvfs statfs_buffer;
 936 #endif
 937 #endif
 938   GFileAttributeMatcher *attribute_matcher;
 939
 940   no_size = FALSE;
 941
 942 #ifdef USE_STATFS
 943
 944 #if STATFS_ARGS == 2
 945   statfs_result = statfs (local->filename, &statfs_buffer);
 946 #elif STATFS_ARGS == 4
 947   statfs_result = statfs (local->filename, &statfs_buffer,
 948                           sizeof (statfs_buffer), 0);
 949 #endif
 950   block_size = statfs_buffer.f_bsize;
 951
 952   /* Many backends can't report free size (for instance the gvfs fuse
 953      backend for backend not supporting this), and set f_bfree to 0,
 954      but it can be 0 for real too. We treat the availible == 0 and
 955      free == 0 case as "both of these are invalid".
 956    */
 957 #ifndef G_OS_WIN32
 958   if (statfs_buffer.f_bavail == 0 && statfs_buffer.f_bfree == 0)
 959     no_size = TRUE;
 960 #endif
 961
 962 #elif defined(USE_STATVFS)
 963   statfs_result = statvfs (local->filename, &statfs_buffer);
 964   block_size = statfs_buffer.f_frsize;
 965 #endif
 966
 967   if (statfs_result == -1)
 968     {
 969       int errsv = errno;
 970
 971       g_set_error (error, G_IO_ERROR,
 972                    g_io_error_from_errno (errsv),
 973                    _("Error getting filesystem info: %s"),
 974                    g_strerror (errsv));
 975       return NULL;
 976     }
 977
 978   info = g_file_info_new ();
 979
 980   attribute_matcher = g_file_attribute_matcher_new (attributes);
 981
 982   if (!no_size &&
 983       g_file_attribute_matcher_matches (attribute_matcher,
 984                                         G_FILE_ATTRIBUTE_FILESYSTEM_FREE))
 985     {
 986 #ifdef G_OS_WIN32
 987       gchar *localdir = g_path_get_dirname (local->filename);
 988       wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
 989       ULARGE_INTEGER li;
 990
 991       g_free (localdir);
 992       if (GetDiskFreeSpaceExW (wdirname, &li, NULL, NULL))
 993         g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, (guint64)li.QuadPart);
 994       g_free (wdirname);
 995 #else
 996       g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_FREE, block_size * statfs_buffer.f_bavail);
 997 #endif
 998     }
 999   if (!no_size &&
1000       g_file_attribute_matcher_matches (attribute_matcher,
1001                                         G_FILE_ATTRIBUTE_FILESYSTEM_SIZE))
1002     {
1003 #ifdef G_OS_WIN32
1004       gchar *localdir = g_path_get_dirname (local->filename);
1005       wchar_t *wdirname = g_utf8_to_utf16 (localdir, -1, NULL, NULL, NULL);
1006       ULARGE_INTEGER li;
1007
1008       g_free (localdir);
1009       if (GetDiskFreeSpaceExW (wdirname, NULL, &li, NULL))
1010         g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE,  (guint64)li.QuadPart);
1011       g_free (wdirname);
1012 #else
1013       g_file_info_set_attribute_uint64 (info, G_FILE_ATTRIBUTE_FILESYSTEM_SIZE, block_size * statfs_buffer.f_blocks);
1014 #endif
1015     }
1016 #ifdef USE_STATFS
1017 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME)
1018   fstype = g_strdup(statfs_buffer.f_fstypename);
1019 #else
1020   fstype = get_fs_type (statfs_buffer.f_type);
1021 #endif
1022
1023 #elif defined(USE_STATVFS) && defined(HAVE_STRUCT_STATVFS_F_BASETYPE)
1024   fstype = g_strdup(statfs_buffer.f_basetype);
1025 #endif
1026
1027 #ifndef G_OS_WIN32
1028   if (fstype &&
1029       g_file_attribute_matcher_matches (attribute_matcher,
1030                                         G_FILE_ATTRIBUTE_FILESYSTEM_TYPE))
1031     g_file_info_set_attribute_string (info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, fstype);
1032 #endif
1033
1034   if (g_file_attribute_matcher_matches (attribute_matcher,
1035                                         G_FILE_ATTRIBUTE_FILESYSTEM_READONLY))
1036     {
1037 #ifdef G_OS_WIN32
1038       get_filesystem_readonly (info, local->filename);
1039 #else
1040       get_mount_info (info, local->filename, attribute_matcher);
1041 #endif
1042     }
1043
1044   g_file_attribute_matcher_unref (attribute_matcher);
1045
1046   return info;
1047 }
1048
1049 static GMount *
1050 g_local_file_find_enclosing_mount (GFile         *file,
1051                                    GCancellable  *cancellable,
1052                                    GError       **error)
1053 {
1054   GLocalFile *local = G_LOCAL_FILE (file);
1055   struct stat buf;
1056   char *mountpoint;
1057   GMount *mount;
1058
1059   if (g_lstat (local->filename, &buf) != 0)
1060     {
1061       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1062                       /* Translators: This is an error message when trying to
1063                        * find the enclosing (user visible) mount of a file, but
1064                        * none exists. */
1065                       _("Containing mount does not exist"));
1066       return NULL;
1067     }
1068
1069   mountpoint = find_mountpoint_for (local->filename, buf.st_dev);
1070   if (mountpoint == NULL)
1071     {
1072       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1073                       /* Translators: This is an error message when trying to
1074                        * find the enclosing (user visible) mount of a file, but
1075                        * none exists. */
1076                       _("Containing mount does not exist"));
1077       return NULL;
1078     }
1079
1080   mount = _g_mount_get_for_mount_path (mountpoint, cancellable);
1081   g_free (mountpoint);
1082   if (mount)
1083     return mount;
1084
1085   g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
1086                   /* Translators: This is an error message when trying to find
1087                    * the enclosing (user visible) mount of a file, but none
1088                    * exists. */
1089                   _("Containing mount does not exist"));
1090   return NULL;
1091 }
1092
1093 static GFile *
1094 g_local_file_set_display_name (GFile         *file,
1095                                const char    *display_name,
1096                                GCancellable  *cancellable,
1097                                GError       **error)
1098 {
1099   GLocalFile *local, *new_local;
1100   GFile *new_file, *parent;
1101   struct stat statbuf;
1102   int errsv;
1103
1104   parent = g_file_get_parent (file);
1105   if (parent == NULL)
1106     {
1107       g_set_error_literal (error, G_IO_ERROR,
1108                            G_IO_ERROR_FAILED,
1109                            _("Can't rename root directory"));
1110       return NULL;
1111     }
1112
1113   new_file = g_file_get_child_for_display_name (parent, display_name, error);
1114   g_object_unref (parent);
1115
1116   if (new_file == NULL)
1117     return NULL;
1118   local = G_LOCAL_FILE (file);
1119   new_local = G_LOCAL_FILE (new_file);
1120
1121   if (g_lstat (new_local->filename, &statbuf) == -1)
1122     {
1123       errsv = errno;
1124
1125       if (errsv != ENOENT)
1126         {
1127           g_set_error (error, G_IO_ERROR,
1128                        g_io_error_from_errno (errsv),
1129                        _("Error renaming file: %s"),
1130                        g_strerror (errsv));
1131           return NULL;
1132         }
1133     }
1134   else
1135     {
1136       g_set_error_literal (error, G_IO_ERROR,
1137                            G_IO_ERROR_EXISTS,
1138                            _("Can't rename file, filename already exist"));
1139       return NULL;
1140     }
1141
1142   if (g_rename (local->filename, new_local->filename) == -1)
1143     {
1144       errsv = errno;
1145
1146       if (errsv == EINVAL)
1147         /* We can't get a rename file into itself error herer,
1148            so this must be an invalid filename, on e.g. FAT */
1149         g_set_error_literal (error, G_IO_ERROR,
1150                              G_IO_ERROR_INVALID_FILENAME,
1151                              _("Invalid filename"));
1152       else
1153         g_set_error (error, G_IO_ERROR,
1154                      g_io_error_from_errno (errsv),
1155                      _("Error renaming file: %s"),
1156                      g_strerror (errsv));
1157       g_object_unref (new_file);
1158       return NULL;
1159     }
1160
1161   return new_file;
1162 }
1163
1164 static GFileInfo *
1165 g_local_file_query_info (GFile                *file,
1166                          const char           *attributes,
1167                          GFileQueryInfoFlags   flags,
1168                          GCancellable         *cancellable,
1169                          GError              **error)
1170 {
1171   GLocalFile *local = G_LOCAL_FILE (file);
1172   GFileInfo *info;
1173   GFileAttributeMatcher *matcher;
1174   char *basename, *dirname;
1175   GLocalParentFileInfo parent_info;
1176
1177   matcher = g_file_attribute_matcher_new (attributes);
1178
1179   basename = g_path_get_basename (local->filename);
1180
1181   dirname = g_path_get_dirname (local->filename);
1182   _g_local_file_info_get_parent_info (dirname, matcher, &parent_info);
1183   g_free (dirname);
1184
1185   info = _g_local_file_info_get (basename, local->filename,
1186                                  matcher, flags, &parent_info,
1187                                  error);
1188
1189
1190   _g_local_file_info_free_parent_info (&parent_info);
1191   g_free (basename);
1192
1193   g_file_attribute_matcher_unref (matcher);
1194
1195   return info;
1196 }
1197
1198 static GFileAttributeInfoList *
1199 g_local_file_query_settable_attributes (GFile         *file,
1200                                         GCancellable  *cancellable,
1201                                         GError       **error)
1202 {
1203   return g_file_attribute_info_list_ref (local_writable_attributes);
1204 }
1205
1206 static GFileAttributeInfoList *
1207 g_local_file_query_writable_namespaces (GFile         *file,
1208                                         GCancellable  *cancellable,
1209                                         GError       **error)
1210 {
1211   GFileAttributeInfoList *list;
1212   GVfsClass *class;
1213   GVfs *vfs;
1214
1215   if (g_once_init_enter (&local_writable_namespaces))
1216     {
1217       /* Writable namespaces: */
1218
1219       list = g_file_attribute_info_list_new ();
1220
1221 #ifdef HAVE_XATTR
1222       g_file_attribute_info_list_add (list,
1223                                       "xattr",
1224                                       G_FILE_ATTRIBUTE_TYPE_STRING,
1225                                       G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE |
1226                                       G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
1227       g_file_attribute_info_list_add (list,
1228                                       "xattr-sys",
1229                                       G_FILE_ATTRIBUTE_TYPE_STRING,
1230                                       G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED);
1231 #endif
1232
1233       vfs = g_vfs_get_default ();
1234       class = G_VFS_GET_CLASS (vfs);
1235       if (class->add_writable_namespaces)
1236         class->add_writable_namespaces (vfs, list);
1237
1238       g_once_init_leave (&local_writable_namespaces, (gsize)list);
1239     }
1240   list = (GFileAttributeInfoList *)local_writable_namespaces;
1241
1242   return g_file_attribute_info_list_ref (list);
1243 }
1244
1245 static gboolean
1246 g_local_file_set_attribute (GFile                *file,
1247                             const char           *attribute,
1248                             GFileAttributeType    type,
1249                             gpointer              value_p,
1250                             GFileQueryInfoFlags   flags,
1251                             GCancellable         *cancellable,
1252                             GError              **error)
1253 {
1254   GLocalFile *local = G_LOCAL_FILE (file);
1255
1256   return _g_local_file_info_set_attribute (local->filename,
1257                                            attribute,
1258                                            type,
1259                                            value_p,
1260                                            flags,
1261                                            cancellable,
1262                                            error);
1263 }
1264
1265 static gboolean
1266 g_local_file_set_attributes_from_info (GFile                *file,
1267                                        GFileInfo            *info,
1268                                        GFileQueryInfoFlags   flags,
1269                                        GCancellable         *cancellable,
1270                                        GError              **error)
1271 {
1272   GLocalFile *local = G_LOCAL_FILE (file);
1273   int res, chained_res;
1274   GFileIface *default_iface;
1275
1276   res = _g_local_file_info_set_attributes (local->filename,
1277                                            info, flags,
1278                                            cancellable,
1279                                            error);
1280
1281   if (!res)
1282     error = NULL; /* Don't write over error if further errors */
1283
1284   default_iface = g_type_default_interface_peek (G_TYPE_FILE);
1285
1286   chained_res = (default_iface->set_attributes_from_info) (file, info, flags, cancellable, error);
1287
1288   return res && chained_res;
1289 }
1290
1291 static GFileInputStream *
1292 g_local_file_read (GFile         *file,
1293                    GCancellable  *cancellable,
1294                    GError       **error)
1295 {
1296   GLocalFile *local = G_LOCAL_FILE (file);
1297   int fd;
1298   struct stat buf;
1299
1300   fd = g_open (local->filename, O_RDONLY|O_BINARY, 0);
1301   if (fd == -1)
1302     {
1303       int errsv = errno;
1304
1305       g_set_error (error, G_IO_ERROR,
1306                    g_io_error_from_errno (errsv),
1307                    _("Error opening file: %s"),
1308                    g_strerror (errsv));
1309       return NULL;
1310     }
1311
1312   if (fstat(fd, &buf) == 0 && S_ISDIR (buf.st_mode))
1313     {
1314       close (fd);
1315       g_set_error_literal (error, G_IO_ERROR,
1316                            G_IO_ERROR_IS_DIRECTORY,
1317                            _("Can't open directory"));
1318       return NULL;
1319     }
1320
1321   return _g_local_file_input_stream_new (fd);
1322 }
1323
1324 static GFileOutputStream *
1325 g_local_file_append_to (GFile             *file,
1326                         GFileCreateFlags   flags,
1327                         GCancellable      *cancellable,
1328                         GError           **error)
1329 {
1330   return _g_local_file_output_stream_append (G_LOCAL_FILE (file)->filename,
1331                                              flags, cancellable, error);
1332 }
1333
1334 static GFileOutputStream *
1335 g_local_file_create (GFile             *file,
1336                      GFileCreateFlags   flags,
1337                      GCancellable      *cancellable,
1338                      GError           **error)
1339 {
1340   return _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1341                                              FALSE,
1342                                              flags, cancellable, error);
1343 }
1344
1345 static GFileOutputStream *
1346 g_local_file_replace (GFile             *file,
1347                       const char        *etag,
1348                       gboolean           make_backup,
1349                       GFileCreateFlags   flags,
1350                       GCancellable      *cancellable,
1351                       GError           **error)
1352 {
1353   return _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1354                                               FALSE,
1355                                               etag, make_backup, flags,
1356                                               cancellable, error);
1357 }
1358
1359 static GFileIOStream *
1360 g_local_file_open_readwrite (GFile                      *file,
1361                              GCancellable               *cancellable,
1362                              GError                    **error)
1363 {
1364   GFileOutputStream *output;
1365   GFileIOStream *res;
1366
1367   output = _g_local_file_output_stream_open (G_LOCAL_FILE (file)->filename,
1368                                              TRUE,
1369                                              cancellable, error);
1370   if (output == NULL)
1371     return NULL;
1372
1373   res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1374   g_object_unref (output);
1375   return res;
1376 }
1377
1378 static GFileIOStream *
1379 g_local_file_create_readwrite (GFile                      *file,
1380                                GFileCreateFlags            flags,
1381                                GCancellable               *cancellable,
1382                                GError                    **error)
1383 {
1384   GFileOutputStream *output;
1385   GFileIOStream *res;
1386
1387   output = _g_local_file_output_stream_create (G_LOCAL_FILE (file)->filename,
1388                                                TRUE, flags,
1389                                                cancellable, error);
1390   if (output == NULL)
1391     return NULL;
1392
1393   res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1394   g_object_unref (output);
1395   return res;
1396 }
1397
1398 static GFileIOStream *
1399 g_local_file_replace_readwrite (GFile                      *file,
1400                                 const char                 *etag,
1401                                 gboolean                    make_backup,
1402                                 GFileCreateFlags            flags,
1403                                 GCancellable               *cancellable,
1404                                 GError                    **error)
1405 {
1406   GFileOutputStream *output;
1407   GFileIOStream *res;
1408
1409   output = _g_local_file_output_stream_replace (G_LOCAL_FILE (file)->filename,
1410                                                 TRUE,
1411                                                 etag, make_backup, flags,
1412                                                 cancellable, error);
1413   if (output == NULL)
1414     return NULL;
1415
1416   res = _g_local_file_io_stream_new (G_LOCAL_FILE_OUTPUT_STREAM (output));
1417   g_object_unref (output);
1418   return res;
1419 }
1420
1421 static gboolean
1422 g_local_file_delete (GFile         *file,
1423                      GCancellable  *cancellable,
1424                      GError       **error)
1425 {
1426   GLocalFile *local = G_LOCAL_FILE (file);
1427   GVfsClass *class;
1428   GVfs *vfs;
1429
1430   if (g_remove (local->filename) == -1)
1431     {
1432       int errsv = errno;
1433
1434       /* Posix allows EEXIST too, but the more sane error
1435          is G_IO_ERROR_NOT_FOUND, and it's what nautilus
1436          expects */
1437       if (errsv == EEXIST)
1438         errsv = ENOTEMPTY;
1439
1440       g_set_error (error, G_IO_ERROR,
1441                    g_io_error_from_errno (errsv),
1442                    _("Error removing file: %s"),
1443                    g_strerror (errsv));
1444       return FALSE;
1445     }
1446
1447   vfs = g_vfs_get_default ();
1448   class = G_VFS_GET_CLASS (vfs);
1449   if (class->local_file_removed)
1450     class->local_file_removed (vfs, local->filename);
1451
1452   return TRUE;
1453 }
1454
1455 static char *
1456 strip_trailing_slashes (const char *path)
1457 {
1458   char *path_copy;
1459   int len;
1460
1461   path_copy = g_strdup (path);
1462   len = strlen (path_copy);
1463   while (len > 1 && path_copy[len-1] == '/')
1464     path_copy[--len] = 0;
1465
1466   return path_copy;
1467  }
1468
1469 static char *
1470 expand_symlink (const char *link)
1471 {
1472   char *resolved, *canonical, *parent, *link2;
1473   char symlink_value[4096];
1474 #ifdef G_OS_WIN32
1475 #else
1476   ssize_t res;
1477 #endif
1478
1479 #ifdef G_OS_WIN32
1480 #else
1481   res = readlink (link, symlink_value, sizeof (symlink_value) - 1);
1482
1483   if (res == -1)
1484     return g_strdup (link);
1485   symlink_value[res] = 0;
1486 #endif
1487
1488   if (g_path_is_absolute (symlink_value))
1489     return canonicalize_filename (symlink_value);
1490   else
1491     {
1492       link2 = strip_trailing_slashes (link);
1493       parent = g_path_get_dirname (link2);
1494       g_free (link2);
1495
1496       resolved = g_build_filename (parent, symlink_value, NULL);
1497       g_free (parent);
1498
1499       canonical = canonicalize_filename (resolved);
1500
1501       g_free (resolved);
1502
1503       return canonical;
1504     }
1505 }
1506
1507 static char *
1508 get_parent (const char *path,
1509             dev_t      *parent_dev)
1510 {
1511   char *parent, *tmp;
1512   struct stat parent_stat;
1513   int num_recursions;
1514   char *path_copy;
1515
1516   path_copy = strip_trailing_slashes (path);
1517
1518   parent = g_path_get_dirname (path_copy);
1519   if (strcmp (parent, ".") == 0 ||
1520       strcmp (parent, path_copy) == 0)
1521     {
1522       g_free (parent);
1523       g_free (path_copy);
1524       return NULL;
1525     }
1526   g_free (path_copy);
1527
1528   num_recursions = 0;
1529   do {
1530     if (g_lstat (parent, &parent_stat) != 0)
1531       {
1532         g_free (parent);
1533         return NULL;
1534       }
1535
1536     if (S_ISLNK (parent_stat.st_mode))
1537       {
1538         tmp = parent;
1539         parent = expand_symlink (parent);
1540         g_free (tmp);
1541       }
1542
1543     num_recursions++;
1544     if (num_recursions > 12)
1545       {
1546         g_free (parent);
1547         return NULL;
1548       }
1549   } while (S_ISLNK (parent_stat.st_mode));
1550
1551   *parent_dev = parent_stat.st_dev;
1552
1553   return parent;
1554 }
1555
1556 static char *
1557 expand_all_symlinks (const char *path)
1558 {
1559   char *parent, *parent_expanded;
1560   char *basename, *res;
1561   dev_t parent_dev;
1562
1563   parent = get_parent (path, &parent_dev);
1564   if (parent)
1565     {
1566       parent_expanded = expand_all_symlinks (parent);
1567       g_free (parent);
1568       basename = g_path_get_basename (path);
1569       res = g_build_filename (parent_expanded, basename, NULL);
1570       g_free (basename);
1571       g_free (parent_expanded);
1572     }
1573   else
1574     res = g_strdup (path);
1575
1576   return res;
1577 }
1578
1579 #ifndef G_OS_WIN32
1580
1581 static char *
1582 find_mountpoint_for (const char *file,
1583                      dev_t       dev)
1584 {
1585   char *dir, *parent;
1586   dev_t dir_dev, parent_dev;
1587
1588   dir = g_strdup (file);
1589   dir_dev = dev;
1590
1591   while (1)
1592     {
1593       parent = get_parent (dir, &parent_dev);
1594       if (parent == NULL)
1595         return dir;
1596
1597       if (parent_dev != dir_dev)
1598         {
1599           g_free (parent);
1600           return dir;
1601         }
1602
1603       g_free (dir);
1604       dir = parent;
1605     }
1606 }
1607
1608 static char *
1609 find_topdir_for (const char *file)
1610 {
1611   char *dir;
1612   dev_t dir_dev;
1613
1614   dir = get_parent (file, &dir_dev);
1615   if (dir == NULL)
1616     return NULL;
1617
1618   return find_mountpoint_for (dir, dir_dev);
1619 }
1620
1621 static char *
1622 get_unique_filename (const char *basename,
1623                      int         id)
1624 {
1625   const char *dot;
1626
1627   if (id == 1)
1628     return g_strdup (basename);
1629
1630   dot = strchr (basename, '.');
1631   if (dot)
1632     return g_strdup_printf ("%.*s.%d%s", (int)(dot - basename), basename, id, dot);
1633   else
1634     return g_strdup_printf ("%s.%d", basename, id);
1635 }
1636
1637 static gboolean
1638 path_has_prefix (const char *path,
1639                  const char *prefix)
1640 {
1641   int prefix_len;
1642
1643   if (prefix == NULL)
1644     return TRUE;
1645
1646   prefix_len = strlen (prefix);
1647
1648   if (strncmp (path, prefix, prefix_len) == 0 &&
1649       (prefix_len == 0 || /* empty prefix always matches */
1650        prefix[prefix_len - 1] == '/' || /* last char in prefix was a /, so it must be in path too */
1651        path[prefix_len] == 0 ||
1652        path[prefix_len] == '/'))
1653     return TRUE;
1654
1655   return FALSE;
1656 }
1657
1658 static char *
1659 try_make_relative (const char *path,
1660                    const char *base)
1661 {
1662   char *path2, *base2;
1663   char *relative;
1664
1665   path2 = expand_all_symlinks (path);
1666   base2 = expand_all_symlinks (base);
1667
1668   relative = NULL;
1669   if (path_has_prefix (path2, base2))
1670     {
1671       relative = path2 + strlen (base2);
1672       while (*relative == '/')
1673         relative ++;
1674       relative = g_strdup (relative);
1675     }
1676   g_free (path2);
1677   g_free (base2);
1678
1679   if (relative)
1680     return relative;
1681
1682   /* Failed, use abs path */
1683   return g_strdup (path);
1684 }
1685
1686 static char *
1687 escape_trash_name (char *name)
1688 {
1689   GString *str;
1690   const gchar hex[16] = "0123456789ABCDEF";
1691
1692   str = g_string_new ("");
1693
1694   while (*name != 0)
1695     {
1696       char c;
1697
1698       c = *name++;
1699
1700       if (g_ascii_isprint (c))
1701         g_string_append_c (str, c);
1702       else
1703         {
1704           g_string_append_c (str, '%');
1705           g_string_append_c (str, hex[((guchar)c) >> 4]);
1706           g_string_append_c (str, hex[((guchar)c) & 0xf]);
1707         }
1708     }
1709
1710   return g_string_free (str, FALSE);
1711 }
1712
1713 gboolean
1714 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
1715 {
1716   static gsize home_dev_set = 0;
1717   static dev_t home_dev;
1718   char *topdir, *globaldir, *trashdir, *tmpname;
1719   uid_t uid;
1720   char uid_str[32];
1721   struct stat global_stat, trash_stat;
1722   gboolean res;
1723   int statres;
1724
1725   if (g_once_init_enter (&home_dev_set))
1726     {
1727       struct stat home_stat;
1728
1729       g_stat (g_get_home_dir (), &home_stat);
1730       home_dev = home_stat.st_dev;
1731       g_once_init_leave (&home_dev_set, 1);
1732     }
1733
1734   /* Assume we can trash to the home */
1735   if (dir_dev == home_dev)
1736     return TRUE;
1737
1738   topdir = find_mountpoint_for (dirname, dir_dev);
1739   if (topdir == NULL)
1740     return FALSE;
1741
1742   globaldir = g_build_filename (topdir, ".Trash", NULL);
1743   statres = g_lstat (globaldir, &global_stat);
1744  if (g_lstat (globaldir, &global_stat) == 0 &&
1745       S_ISDIR (global_stat.st_mode) &&
1746       (global_stat.st_mode & S_ISVTX) != 0)
1747     {
1748       /* got a toplevel sysadmin created dir, assume we
1749        * can trash to it (we should be able to create a dir)
1750        * This fails for the FAT case where the ownership of
1751        * that dir would be wrong though..
1752        */
1753       g_free (globaldir);
1754       g_free (topdir);
1755       return TRUE;
1756     }
1757   g_free (globaldir);
1758
1759   /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
1760   uid = geteuid ();
1761   g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long) uid);
1762
1763   tmpname = g_strdup_printf (".Trash-%s", uid_str);
1764   trashdir = g_build_filename (topdir, tmpname, NULL);
1765   g_free (tmpname);
1766
1767   if (g_lstat (trashdir, &trash_stat) == 0)
1768     {
1769       g_free (topdir);
1770       g_free (trashdir);
1771       return
1772         S_ISDIR (trash_stat.st_mode) &&
1773         trash_stat.st_uid == uid;
1774     }
1775   g_free (trashdir);
1776
1777   /* User specific trash didn't exist, can we create it? */
1778   res = g_access (topdir, W_OK) == 0;
1779
1780   g_free (topdir);
1781
1782   return res;
1783 }
1784
1785
1786 static gboolean
1787 g_local_file_trash (GFile         *file,
1788                     GCancellable  *cancellable,
1789                     GError       **error)
1790 {
1791   GLocalFile *local = G_LOCAL_FILE (file);
1792   struct stat file_stat, home_stat;
1793   const char *homedir;
1794   char *trashdir, *topdir, *infodir, *filesdir;
1795   char *basename, *trashname, *trashfile, *infoname, *infofile;
1796   char *original_name, *original_name_escaped;
1797   int i;
1798   char *data;
1799   gboolean is_homedir_trash;
1800   char delete_time[32];
1801   int fd;
1802   struct stat trash_stat, global_stat;
1803   char *dirname, *globaldir;
1804
1805   if (g_lstat (local->filename, &file_stat) != 0)
1806     {
1807       int errsv = errno;
1808
1809       g_set_error (error, G_IO_ERROR,
1810                    g_io_error_from_errno (errsv),
1811                    _("Error trashing file: %s"),
1812                    g_strerror (errsv));
1813       return FALSE;
1814     }
1815
1816   homedir = g_get_home_dir ();
1817   g_stat (homedir, &home_stat);
1818
1819   is_homedir_trash = FALSE;
1820   trashdir = NULL;
1821   if (file_stat.st_dev == home_stat.st_dev)
1822     {
1823       is_homedir_trash = TRUE;
1824       errno = 0;
1825       trashdir = g_build_filename (g_get_user_data_dir (), "Trash", NULL);
1826       if (g_mkdir_with_parents (trashdir, 0700) < 0)
1827         {
1828           char *display_name;
1829           int errsv = errno;
1830
1831           display_name = g_filename_display_name (trashdir);
1832           g_set_error (error, G_IO_ERROR,
1833                        g_io_error_from_errno (errsv),
1834                        _("Unable to create trash dir %s: %s"),
1835                        display_name, g_strerror (errsv));
1836           g_free (display_name);
1837           g_free (trashdir);
1838           return FALSE;
1839         }
1840       topdir = g_strdup (g_get_user_data_dir ());
1841     }
1842   else
1843     {
1844       uid_t uid;
1845       char uid_str[32];
1846
1847       uid = geteuid ();
1848       g_snprintf (uid_str, sizeof (uid_str), "%lu", (unsigned long)uid);
1849
1850       topdir = find_topdir_for (local->filename);
1851       if (topdir == NULL)
1852         {
1853           g_set_error_literal (error, G_IO_ERROR,
1854                                G_IO_ERROR_NOT_SUPPORTED,
1855                                _("Unable to find toplevel directory for trash"));
1856           return FALSE;
1857         }
1858
1859       /* Try looking for global trash dir $topdir/.Trash/$uid */
1860       globaldir = g_build_filename (topdir, ".Trash", NULL);
1861       if (g_lstat (globaldir, &global_stat) == 0 &&
1862           S_ISDIR (global_stat.st_mode) &&
1863           (global_stat.st_mode & S_ISVTX) != 0)
1864         {
1865           trashdir = g_build_filename (globaldir, uid_str, NULL);
1866
1867           if (g_lstat (trashdir, &trash_stat) == 0)
1868             {
1869               if (!S_ISDIR (trash_stat.st_mode) ||
1870                   trash_stat.st_uid != uid)
1871                 {
1872                   /* Not a directory or not owned by user, ignore */
1873                   g_free (trashdir);
1874                   trashdir = NULL;
1875                 }
1876             }
1877           else if (g_mkdir (trashdir, 0700) == -1)
1878             {
1879               g_free (trashdir);
1880               trashdir = NULL;
1881             }
1882         }
1883       g_free (globaldir);
1884
1885       if (trashdir == NULL)
1886         {
1887           gboolean tried_create;
1888
1889           /* No global trash dir, or it failed the tests, fall back to $topdir/.Trash-$uid */
1890           dirname = g_strdup_printf (".Trash-%s", uid_str);
1891           trashdir = g_build_filename (topdir, dirname, NULL);
1892           g_free (dirname);
1893
1894           tried_create = FALSE;
1895
1896         retry:
1897           if (g_lstat (trashdir, &trash_stat) == 0)
1898             {
1899               if (!S_ISDIR (trash_stat.st_mode) ||
1900                   trash_stat.st_uid != uid)
1901                 {
1902                   /* Remove the failed directory */
1903                   if (tried_create)
1904                     g_remove (trashdir);
1905
1906                   /* Not a directory or not owned by user, ignore */
1907                   g_free (trashdir);
1908                   trashdir = NULL;
1909                 }
1910             }
1911           else
1912             {
1913               if (!tried_create &&
1914                   g_mkdir (trashdir, 0700) != -1)
1915                 {
1916                   /* Ensure that the created dir has the right uid etc.
1917                      This might fail on e.g. a FAT dir */
1918                   tried_create = TRUE;
1919                   goto retry;
1920                 }
1921               else
1922                 {
1923                   g_free (trashdir);
1924                   trashdir = NULL;
1925                 }
1926             }
1927         }
1928
1929       if (trashdir == NULL)
1930         {
1931           g_free (topdir);
1932           g_set_error_literal (error, G_IO_ERROR,
1933                                G_IO_ERROR_NOT_SUPPORTED,
1934                                _("Unable to find or create trash directory"));
1935           return FALSE;
1936         }
1937     }
1938
1939   /* Trashdir points to the trash dir with the "info" and "files" subdirectories */
1940
1941   infodir = g_build_filename (trashdir, "info", NULL);
1942   filesdir = g_build_filename (trashdir, "files", NULL);
1943   g_free (trashdir);
1944
1945   /* Make sure we have the subdirectories */
1946   if ((g_mkdir (infodir, 0700) == -1 && errno != EEXIST) ||
1947       (g_mkdir (filesdir, 0700) == -1 && errno != EEXIST))
1948     {
1949       g_free (topdir);
1950       g_free (infodir);
1951       g_free (filesdir);
1952       g_set_error_literal (error, G_IO_ERROR,
1953                            G_IO_ERROR_NOT_SUPPORTED,
1954                            _("Unable to find or create trash directory"));
1955       return FALSE;
1956     }
1957
1958   basename = g_path_get_basename (local->filename);
1959   i = 1;
1960   trashname = NULL;
1961   infofile = NULL;
1962   do {
1963     g_free (trashname);
1964     g_free (infofile);
1965
1966     trashname = get_unique_filename (basename, i++);
1967     infoname = g_strconcat (trashname, ".trashinfo", NULL);
1968     infofile = g_build_filename (infodir, infoname, NULL);
1969     g_free (infoname);
1970
1971     fd = open (infofile, O_CREAT | O_EXCL, 0666);
1972   } while (fd == -1 && errno == EEXIST);
1973
1974   g_free (basename);
1975   g_free (infodir);
1976
1977   if (fd == -1)
1978     {
1979       int errsv = errno;
1980
1981       g_free (filesdir);
1982       g_free (topdir);
1983       g_free (trashname);
1984       g_free (infofile);
1985
1986       g_set_error (error, G_IO_ERROR,
1987                    g_io_error_from_errno (errsv),
1988                    _("Unable to create trashing info file: %s"),
1989                    g_strerror (errsv));
1990       return FALSE;
1991     }
1992
1993   close (fd);
1994
1995   /* TODO: Maybe we should verify that you can delete the file from the trash
1996      before moving it? OTOH, that is hard, as it needs a recursive scan */
1997
1998   trashfile = g_build_filename (filesdir, trashname, NULL);
1999
2000   g_free (filesdir);
2001
2002   if (g_rename (local->filename, trashfile) == -1)
2003     {
2004       int errsv = errno;
2005
2006       g_free (topdir);
2007       g_free (trashname);
2008       g_free (infofile);
2009       g_free (trashfile);
2010
2011       if (errsv == EXDEV)
2012         /* The trash dir was actually on another fs anyway!?
2013            This can happen when the same device is mounted multiple
2014            times, or with bind mounts of the same fs. */
2015         g_set_error (error, G_IO_ERROR,
2016                      G_IO_ERROR_NOT_SUPPORTED,
2017                      _("Unable to trash file: %s"),
2018                      g_strerror (errsv));
2019       else
2020         g_set_error (error, G_IO_ERROR,
2021                      g_io_error_from_errno (errsv),
2022                      _("Unable to trash file: %s"),
2023                      g_strerror (errsv));
2024       return FALSE;
2025     }
2026
2027   g_free (trashfile);
2028
2029   /* TODO: Do we need to update mtime/atime here after the move? */
2030
2031   /* Use absolute names for homedir */
2032   if (is_homedir_trash)
2033     original_name = g_strdup (local->filename);
2034   else
2035     original_name = try_make_relative (local->filename, topdir);
2036   original_name_escaped = escape_trash_name (original_name);
2037
2038   g_free (original_name);
2039   g_free (topdir);
2040
2041   {
2042     time_t t;
2043     struct tm now;
2044     t = time (NULL);
2045     localtime_r (&t, &now);
2046     delete_time[0] = 0;
2047     strftime(delete_time, sizeof (delete_time), "%Y-%m-%dT%H:%M:%S", &now);
2048   }
2049
2050   data = g_strdup_printf ("[Trash Info]\nPath=%s\nDeletionDate=%s\n",
2051                           original_name_escaped, delete_time);
2052
2053   g_file_set_contents (infofile, data, -1, NULL);
2054   g_free (infofile);
2055   g_free (data);
2056
2057   g_free (original_name_escaped);
2058   g_free (trashname);
2059
2060   return TRUE;
2061 }
2062 #else /* G_OS_WIN32 */
2063 gboolean
2064 _g_local_file_has_trash_dir (const char *dirname, dev_t dir_dev)
2065 {
2066   return FALSE;                 /* XXX ??? */
2067 }
2068
2069 static gboolean
2070 g_local_file_trash (GFile         *file,
2071                     GCancellable  *cancellable,
2072                     GError       **error)
2073 {
2074   GLocalFile *local = G_LOCAL_FILE (file);
2075   SHFILEOPSTRUCTW op = {0};
2076   gboolean success;
2077   wchar_t *wfilename;
2078   long len;
2079
2080   wfilename = g_utf8_to_utf16 (local->filename, -1, NULL, &len, NULL);
2081   /* SHFILEOPSTRUCT.pFrom is double-zero-terminated */
2082   wfilename = g_renew (wchar_t, wfilename, len + 2);
2083   wfilename[len + 1] = 0;
2084
2085   op.wFunc = FO_DELETE;
2086   op.pFrom = wfilename;
2087   op.fFlags = FOF_ALLOWUNDO;
2088
2089   success = SHFileOperationW (&op) == 0;
2090
2091   if (success && op.fAnyOperationsAborted)
2092     {
2093       if (cancellable && !g_cancellable_is_cancelled (cancellable))
2094         g_cancellable_cancel (cancellable);
2095       g_set_error (error, G_IO_ERROR,
2096                    G_IO_ERROR_CANCELLED,
2097                    _("Unable to trash file: %s"),
2098                    _("Operation was cancelled"));
2099       success = FALSE;
2100     }
2101   else if (!success)
2102     g_set_error (error, G_IO_ERROR,
2103                  G_IO_ERROR_FAILED,
2104                  _("Unable to trash file: %s"),
2105                  _("internal error"));
2106
2107   g_free (wfilename);
2108   return success;
2109 }
2110 #endif /* G_OS_WIN32 */
2111
2112 static gboolean
2113 g_local_file_make_directory (GFile         *file,
2114                              GCancellable  *cancellable,
2115                              GError       **error)
2116 {
2117   GLocalFile *local = G_LOCAL_FILE (file);
2118
2119   if (g_mkdir (local->filename, 0777) == -1)
2120     {
2121       int errsv = errno;
2122
2123       if (errsv == EINVAL)
2124         /* This must be an invalid filename, on e.g. FAT */
2125         g_set_error_literal (error, G_IO_ERROR,
2126                              G_IO_ERROR_INVALID_FILENAME,
2127                              _("Invalid filename"));
2128       else
2129         g_set_error (error, G_IO_ERROR,
2130                      g_io_error_from_errno (errsv),
2131                      _("Error creating directory: %s"),
2132                      g_strerror (errsv));
2133       return FALSE;
2134     }
2135
2136   return TRUE;
2137 }
2138
2139 static gboolean
2140 g_local_file_make_symbolic_link (GFile         *file,
2141                                  const char    *symlink_value,
2142                                  GCancellable  *cancellable,
2143                                  GError       **error)
2144 {
2145 #ifdef HAVE_SYMLINK
2146   GLocalFile *local = G_LOCAL_FILE (file);
2147
2148   if (symlink (symlink_value, local->filename) == -1)
2149     {
2150       int errsv = errno;
2151
2152       if (errsv == EINVAL)
2153         /* This must be an invalid filename, on e.g. FAT */
2154         g_set_error_literal (error, G_IO_ERROR,
2155                              G_IO_ERROR_INVALID_FILENAME,
2156                              _("Invalid filename"));
2157       else
2158         g_set_error (error, G_IO_ERROR,
2159                      g_io_error_from_errno (errsv),
2160                      _("Error making symbolic link: %s"),
2161                      g_strerror (errsv));
2162       return FALSE;
2163     }
2164   return TRUE;
2165 #else
2166   g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Symlinks not supported");
2167   return FALSE;
2168 #endif
2169 }
2170
2171
2172 static gboolean
2173 g_local_file_copy (GFile                  *source,
2174                    GFile                  *destination,
2175                    GFileCopyFlags          flags,
2176                    GCancellable           *cancellable,
2177                    GFileProgressCallback   progress_callback,
2178                    gpointer                progress_callback_data,
2179                    GError                **error)
2180 {
2181   /* Fall back to default copy */
2182   g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Copy not supported");
2183   return FALSE;
2184 }
2185
2186 static gboolean
2187 g_local_file_move (GFile                  *source,
2188                    GFile                  *destination,
2189                    GFileCopyFlags          flags,
2190                    GCancellable           *cancellable,
2191                    GFileProgressCallback   progress_callback,
2192                    gpointer                progress_callback_data,
2193                    GError                **error)
2194 {
2195   GLocalFile *local_source, *local_destination;
2196   struct stat statbuf;
2197   gboolean destination_exist, source_is_dir;
2198   char *backup_name;
2199   int res;
2200   off_t source_size;
2201   GVfsClass *class;
2202   GVfs *vfs;
2203
2204   if (!G_IS_LOCAL_FILE (source) ||
2205       !G_IS_LOCAL_FILE (destination))
2206     {
2207       /* Fall back to default move */
2208       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "Move not supported");
2209       return FALSE;
2210     }
2211
2212   local_source = G_LOCAL_FILE (source);
2213   local_destination = G_LOCAL_FILE (destination);
2214
2215   res = g_lstat (local_source->filename, &statbuf);
2216   if (res == -1)
2217     {
2218       int errsv = errno;
2219
2220       g_set_error (error, G_IO_ERROR,
2221                    g_io_error_from_errno (errsv),
2222                    _("Error moving file: %s"),
2223                    g_strerror (errsv));
2224       return FALSE;
2225     }
2226
2227   source_is_dir = S_ISDIR (statbuf.st_mode);
2228   source_size = statbuf.st_size;
2229
2230   destination_exist = FALSE;
2231   res = g_lstat (local_destination->filename, &statbuf);
2232   if (res == 0)
2233     {
2234       destination_exist = TRUE; /* Target file exists */
2235
2236       if (flags & G_FILE_COPY_OVERWRITE)
2237         {
2238           /* Always fail on dirs, even with overwrite */
2239           if (S_ISDIR (statbuf.st_mode))
2240             {
2241               if (source_is_dir)
2242                 g_set_error_literal (error,
2243                                      G_IO_ERROR,
2244                                      G_IO_ERROR_WOULD_MERGE,
2245                                      _("Can't move directory over directory"));
2246               else
2247                 g_set_error_literal (error,
2248                                      G_IO_ERROR,
2249                                      G_IO_ERROR_IS_DIRECTORY,
2250                                      _("Can't copy over directory"));
2251               return FALSE;
2252             }
2253         }
2254       else
2255         {
2256           g_set_error_literal (error,
2257                                G_IO_ERROR,
2258                                G_IO_ERROR_EXISTS,
2259                                _("Target file exists"));
2260           return FALSE;
2261         }
2262     }
2263
2264   if (flags & G_FILE_COPY_BACKUP && destination_exist)
2265     {
2266       backup_name = g_strconcat (local_destination->filename, "~", NULL);
2267       if (g_rename (local_destination->filename, backup_name) == -1)
2268         {
2269           g_set_error_literal (error,
2270                                G_IO_ERROR,
2271                                G_IO_ERROR_CANT_CREATE_BACKUP,
2272                                _("Backup file creation failed"));
2273           g_free (backup_name);
2274           return FALSE;
2275         }
2276       g_free (backup_name);
2277       destination_exist = FALSE; /* It did, but no more */
2278     }
2279
2280   if (source_is_dir && destination_exist && (flags & G_FILE_COPY_OVERWRITE))
2281     {
2282       /* Source is a dir, destination exists (and is not a dir, because that would have failed
2283          earlier), and we're overwriting. Manually remove the target so we can do the rename. */
2284       res = g_unlink (local_destination->filename);
2285       if (res == -1)
2286         {
2287           int errsv = errno;
2288
2289           g_set_error (error, G_IO_ERROR,
2290                        g_io_error_from_errno (errsv),
2291                        _("Error removing target file: %s"),
2292                        g_strerror (errsv));
2293           return FALSE;
2294         }
2295     }
2296
2297   if (g_rename (local_source->filename, local_destination->filename) == -1)
2298     {
2299       int errsv = errno;
2300
2301       if (errsv == EXDEV)
2302         /* This will cause the fallback code to run */
2303         g_set_error_literal (error, G_IO_ERROR,
2304                              G_IO_ERROR_NOT_SUPPORTED,
2305                              _("Move between mounts not supported"));
2306       else if (errsv == EINVAL)
2307         /* This must be an invalid filename, on e.g. FAT, or
2308            we're trying to move the file into itself...
2309            We return invalid filename for both... */
2310         g_set_error_literal (error, G_IO_ERROR,
2311                              G_IO_ERROR_INVALID_FILENAME,
2312                              _("Invalid filename"));
2313       else
2314         g_set_error (error, G_IO_ERROR,
2315                      g_io_error_from_errno (errsv),
2316                      _("Error moving file: %s"),
2317                      g_strerror (errsv));
2318       return FALSE;
2319     }
2320
2321   vfs = g_vfs_get_default ();
2322   class = G_VFS_GET_CLASS (vfs);
2323   if (class->local_file_moved)
2324     class->local_file_moved (vfs, local_source->filename, local_destination->filename);
2325
2326   /* Make sure we send full copied size */
2327   if (progress_callback)
2328     progress_callback (source_size, source_size, progress_callback_data);
2329
2330   return TRUE;
2331 }
2332
2333 static GFileMonitor*
2334 g_local_file_monitor_dir (GFile             *file,
2335                           GFileMonitorFlags  flags,
2336                           GCancellable      *cancellable,
2337                           GError           **error)
2338 {
2339   GLocalFile* local_file = G_LOCAL_FILE(file);
2340   return _g_local_directory_monitor_new (local_file->filename, flags, error);
2341 }
2342
2343 static GFileMonitor*
2344 g_local_file_monitor_file (GFile             *file,
2345                            GFileMonitorFlags  flags,
2346                            GCancellable      *cancellable,
2347                            GError           **error)
2348 {
2349   GLocalFile* local_file = G_LOCAL_FILE(file);
2350   return _g_local_file_monitor_new (local_file->filename, flags, error);
2351 }
2352
2353 static void
2354 g_local_file_file_iface_init (GFileIface *iface)
2355 {
2356   iface->dup = g_local_file_dup;
2357   iface->hash = g_local_file_hash;
2358   iface->equal = g_local_file_equal;
2359   iface->is_native = g_local_file_is_native;
2360   iface->has_uri_scheme = g_local_file_has_uri_scheme;
2361   iface->get_uri_scheme = g_local_file_get_uri_scheme;
2362   iface->get_basename = g_local_file_get_basename;
2363   iface->get_path = g_local_file_get_path;
2364   iface->get_uri = g_local_file_get_uri;
2365   iface->get_parse_name = g_local_file_get_parse_name;
2366   iface->get_parent = g_local_file_get_parent;
2367   iface->prefix_matches = g_local_file_prefix_matches;
2368   iface->get_relative_path = g_local_file_get_relative_path;
2369   iface->resolve_relative_path = g_local_file_resolve_relative_path;
2370   iface->get_child_for_display_name = g_local_file_get_child_for_display_name;
2371   iface->set_display_name = g_local_file_set_display_name;
2372   iface->enumerate_children = g_local_file_enumerate_children;
2373   iface->query_info = g_local_file_query_info;
2374   iface->query_filesystem_info = g_local_file_query_filesystem_info;
2375   iface->find_enclosing_mount = g_local_file_find_enclosing_mount;
2376   iface->query_settable_attributes = g_local_file_query_settable_attributes;
2377   iface->query_writable_namespaces = g_local_file_query_writable_namespaces;
2378   iface->set_attribute = g_local_file_set_attribute;
2379   iface->set_attributes_from_info = g_local_file_set_attributes_from_info;
2380   iface->read_fn = g_local_file_read;
2381   iface->append_to = g_local_file_append_to;
2382   iface->create = g_local_file_create;
2383   iface->replace = g_local_file_replace;
2384   iface->open_readwrite = g_local_file_open_readwrite;
2385   iface->create_readwrite = g_local_file_create_readwrite;
2386   iface->replace_readwrite = g_local_file_replace_readwrite;
2387   iface->delete_file = g_local_file_delete;
2388   iface->trash = g_local_file_trash;
2389   iface->make_directory = g_local_file_make_directory;
2390   iface->make_symbolic_link = g_local_file_make_symbolic_link;
2391   iface->copy = g_local_file_copy;
2392   iface->move = g_local_file_move;
2393   iface->monitor_dir = g_local_file_monitor_dir;
2394   iface->monitor_file = g_local_file_monitor_file;
2395
2396   iface->supports_thread_contexts = TRUE;
2397 }