gio/glocalfileinfo.c

   1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
   2
   3 /* GIO - GLib Input, Output and Streaming Library
   4  *
   5  * Copyright (C) 2006-2007 Red Hat, Inc.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General
  18  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  *
  20  * Author: Alexander Larsson <alexl@redhat.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include <glib.h>
  26
  27 #ifdef HAVE_SYS_TIME_H
  28 #include <sys/time.h>
  29 #endif
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <string.h>
  33 #include <fcntl.h>
  34 #include <errno.h>
  35 #ifdef G_OS_UNIX
  36 #include <grp.h>
  37 #include <pwd.h>
  38 #endif
  39 #ifdef HAVE_SELINUX
  40 #include <selinux/selinux.h>
  41 #endif
  42
  43 #ifdef HAVE_XATTR
  44
  45 #if defined HAVE_SYS_XATTR_H
  46   #include <sys/xattr.h>
  47 #elif defined HAVE_ATTR_XATTR_H
  48   #include <attr/xattr.h>
  49 #else
  50   #error "Neither <sys/xattr.h> nor <attr/xattr.h> is present but extended attribute support is enabled."
  51 #endif /* defined HAVE_SYS_XATTR_H || HAVE_ATTR_XATTR_H */
  52
  53 #endif /* HAVE_XATTR */
  54
  55 #include <glib/gstdio.h>
  56 #include <gfileattribute-priv.h>
  57 #include <gfileinfo-priv.h>
  58 #include <gvfs.h>
  59
  60 #ifdef G_OS_UNIX
  61 #include <unistd.h>
  62 #include "glib-unix.h"
  63 #include "glib-private.h"
  64 #endif
  65
  66 #include "thumbnail-verify.h"
  67
  68 #ifdef G_OS_WIN32
  69 #include <windows.h>
  70 #include <io.h>
  71 #ifndef W_OK
  72 #define W_OK 2
  73 #endif
  74 #ifndef R_OK
  75 #define R_OK 4
  76 #endif
  77 #ifndef X_OK
  78 #define X_OK 0 /* not really */
  79 #endif
  80 #ifndef S_ISREG
  81 #define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
  82 #endif
  83 #ifndef S_ISDIR
  84 #define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
  85 #endif
  86 #ifndef S_IXUSR
  87 #define S_IXUSR _S_IEXEC
  88 #endif
  89 #endif
  90
  91 #include "glocalfileinfo.h"
  92 #include "gioerror.h"
  93 #include "gthemedicon.h"
  94 #include "gcontenttypeprivate.h"
  95 #include "glibintl.h"
  96
  97
  98 struct ThumbMD5Context {
  99         guint32 buf[4];
 100         guint32 bits[2];
 101         unsigned char in[64];
 102 };
 103
 104 #ifndef G_OS_WIN32
 105
 106 typedef struct {
 107   char *user_name;
 108   char *real_name;
 109 } UidData;
 110
 111 G_LOCK_DEFINE_STATIC (uid_cache);
 112 static GHashTable *uid_cache = NULL;
 113
 114 G_LOCK_DEFINE_STATIC (gid_cache);
 115 static GHashTable *gid_cache = NULL;
 116
 117 #endif  /* !G_OS_WIN32 */
 118
 119 char *
 120 _g_local_file_info_create_etag (GLocalFileStat *statbuf)
 121 {
 122   glong sec, usec;
 123
 124   sec = statbuf->st_mtime;
 125 #if defined (HAVE_STRUCT_STAT_ST_MTIMENSEC)
 126   usec = statbuf->st_mtimensec / 1000;
 127 #elif defined (HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
 128   usec = statbuf->st_mtim.tv_nsec / 1000;
 129 #else
 130   usec = 0;
 131 #endif
 132
 133   return g_strdup_printf ("%lu:%lu", sec, usec);
 134 }
 135
 136 static char *
 137 _g_local_file_info_create_file_id (GLocalFileStat *statbuf)
 138 {
 139   return g_strdup_printf ("l%" G_GUINT64_FORMAT ":%" G_GUINT64_FORMAT,
 140                           (guint64) statbuf->st_dev,
 141                           (guint64) statbuf->st_ino);
 142 }
 143
 144 static char *
 145 _g_local_file_info_create_fs_id (GLocalFileStat *statbuf)
 146 {
 147   return g_strdup_printf ("l%" G_GUINT64_FORMAT,
 148                           (guint64) statbuf->st_dev);
 149 }
 150
 151
 152 #ifdef S_ISLNK
 153
 154 static gchar *
 155 read_link (const gchar *full_name)
 156 {
 157 #ifdef HAVE_READLINK
 158   gchar *buffer;
 159   guint size;
 160
 161   size = 256;
 162   buffer = g_malloc (size);
 163
 164   while (1)
 165     {
 166       int read_size;
 167
 168       read_size = readlink (full_name, buffer, size);
 169       if (read_size < 0)
 170         {
 171           g_free (buffer);
 172           return NULL;
 173         }
 174       if (read_size < size)
 175         {
 176           buffer[read_size] = 0;
 177           return buffer;
 178         }
 179       size *= 2;
 180       buffer = g_realloc (buffer, size);
 181     }
 182 #else
 183   return NULL;
 184 #endif
 185 }
 186
 187 #endif  /* S_ISLNK */
 188
 189 #ifdef HAVE_SELINUX
 190 /* Get the SELinux security context */
 191 static void
 192 get_selinux_context (const char            *path,
 193                      GFileInfo             *info,
 194                      GFileAttributeMatcher *attribute_matcher,
 195                      gboolean               follow_symlinks)
 196 {
 197   char *context;
 198
 199   if (!_g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_SELINUX_CONTEXT))
 200     return;
 201
 202   if (is_selinux_enabled ())
 203     {
 204       if (follow_symlinks)
 205         {
 206           if (lgetfilecon_raw (path, &context) < 0)
 207             return;
 208         }
 209       else
 210         {
 211           if (getfilecon_raw (path, &context) < 0)
 212             return;
 213         }
 214
 215       if (context)
 216         {
 217           _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_SELINUX_CONTEXT, context);
 218           freecon (context);
 219         }
 220     }
 221 }
 222 #endif
 223
 224 #ifdef HAVE_XATTR
 225
 226 /* Wrappers to hide away differences between (Linux) getxattr/lgetxattr and
 227  * (Mac) getxattr(..., XATTR_NOFOLLOW)
 228  */
 229 #ifdef HAVE_XATTR_NOFOLLOW
 230 #define g_fgetxattr(fd,name,value,size)  fgetxattr(fd,name,value,size,0,0)
 231 #define g_flistxattr(fd,name,size)       flistxattr(fd,name,size,0)
 232 #define g_setxattr(path,name,value,size) setxattr(path,name,value,size,0,0)
 233 #else
 234 #define g_fgetxattr     fgetxattr
 235 #define g_flistxattr    flistxattr
 236 #define g_setxattr(path,name,value,size) setxattr(path,name,value,size,0)
 237 #endif
 238
 239 static ssize_t
 240 g_getxattr (const char *path, const char *name, void *value, size_t size,
 241             gboolean follow_symlinks)
 242 {
 243 #ifdef HAVE_XATTR_NOFOLLOW
 244   return getxattr (path, name, value, size, 0, follow_symlinks ? 0 : XATTR_NOFOLLOW);
 245 #else
 246   if (follow_symlinks)
 247     return getxattr (path, name, value, size);
 248   else
 249     return lgetxattr (path, name, value, size);
 250 #endif
 251 }
 252
 253 static ssize_t
 254 g_listxattr(const char *path, char *namebuf, size_t size,
 255             gboolean follow_symlinks)
 256 {
 257 #ifdef HAVE_XATTR_NOFOLLOW
 258   return listxattr (path, namebuf, size, follow_symlinks ? 0 : XATTR_NOFOLLOW);
 259 #else
 260   if (follow_symlinks)
 261     return listxattr (path, namebuf, size);
 262   else
 263     return llistxattr (path, namebuf, size);
 264 #endif
 265 }
 266
 267 static gboolean
 268 valid_char (char c)
 269 {
 270   return c >= 32 && c <= 126 && c != '\\';
 271 }
 272
 273 static gboolean
 274 name_is_valid (const char *str)
 275 {
 276   while (*str)
 277     {
 278       if (!valid_char (*str++))
 279         return FALSE;
 280     }
 281   return TRUE;
 282 }
 283
 284 static char *
 285 hex_escape_string (const char *str,
 286                    gboolean   *free_return)
 287 {
 288   int num_invalid, i;
 289   char *escaped_str, *p;
 290   unsigned char c;
 291   static char *hex_digits = "0123456789abcdef";
 292   int len;
 293
 294   len = strlen (str);
 295
 296   num_invalid = 0;
 297   for (i = 0; i < len; i++)
 298     {
 299       if (!valid_char (str[i]))
 300         num_invalid++;
 301     }
 302
 303   if (num_invalid == 0)
 304     {
 305       *free_return = FALSE;
 306       return (char *)str;
 307     }
 308
 309   escaped_str = g_malloc (len + num_invalid*3 + 1);
 310
 311   p = escaped_str;
 312   for (i = 0; i < len; i++)
 313     {
 314       if (valid_char (str[i]))
 315         *p++ = str[i];
 316       else
 317         {
 318           c = str[i];
 319           *p++ = '\\';
 320           *p++ = 'x';
 321           *p++ = hex_digits[(c >> 4) & 0xf];
 322           *p++ = hex_digits[c & 0xf];
 323         }
 324     }
 325   *p = 0;
 326
 327   *free_return = TRUE;
 328   return escaped_str;
 329 }
 330
 331 static char *
 332 hex_unescape_string (const char *str,
 333                      int        *out_len,
 334                      gboolean   *free_return)
 335 {
 336   int i;
 337   char *unescaped_str, *p;
 338   unsigned char c;
 339   int len;
 340
 341   len = strlen (str);
 342
 343   if (strchr (str, '\\') == NULL)
 344     {
 345       if (out_len)
 346         *out_len = len;
 347       *free_return = FALSE;
 348       return (char *)str;
 349     }
 350
 351   unescaped_str = g_malloc (len + 1);
 352
 353   p = unescaped_str;
 354   for (i = 0; i < len; i++)
 355     {
 356       if (str[i] == '\\' &&
 357           str[i+1] == 'x' &&
 358           len - i >= 4)
 359         {
 360           c =
 361             (g_ascii_xdigit_value (str[i+2]) << 4) |
 362             g_ascii_xdigit_value (str[i+3]);
 363           *p++ = c;
 364           i += 3;
 365         }
 366       else
 367         *p++ = str[i];
 368     }
 369   *p++ = 0;
 370
 371   if (out_len)
 372     *out_len = p - unescaped_str;
 373   *free_return = TRUE;
 374   return unescaped_str;
 375 }
 376
 377 static void
 378 escape_xattr (GFileInfo  *info,
 379               const char *gio_attr, /* gio attribute name */
 380               const char *value, /* Is zero terminated */
 381               size_t      len /* not including zero termination */)
 382 {
 383   char *escaped_val;
 384   gboolean free_escaped_val;
 385
 386   escaped_val = hex_escape_string (value, &free_escaped_val);
 387
 388   g_file_info_set_attribute_string (info, gio_attr, escaped_val);
 389
 390   if (free_escaped_val)
 391     g_free (escaped_val);
 392 }
 393
 394 static void
 395 get_one_xattr (const char *path,
 396                GFileInfo  *info,
 397                const char *gio_attr,
 398                const char *xattr,
 399                gboolean    follow_symlinks)
 400 {
 401   char value[64];
 402   char *value_p;
 403   ssize_t len;
 404
 405   len = g_getxattr (path, xattr, value, sizeof (value)-1, follow_symlinks);
 406
 407   value_p = NULL;
 408   if (len >= 0)
 409     value_p = value;
 410   else if (len == -1 && errno == ERANGE)
 411     {
 412       len = g_getxattr (path, xattr, NULL, 0, follow_symlinks);
 413
 414       if (len < 0)
 415         return;
 416
 417       value_p = g_malloc (len+1);
 418
 419       len = g_getxattr (path, xattr, value_p, len, follow_symlinks);
 420
 421       if (len < 0)
 422         {
 423           g_free (value_p);
 424           return;
 425         }
 426     }
 427   else
 428     return;
 429
 430   /* Null terminate */
 431   value_p[len] = 0;
 432
 433   escape_xattr (info, gio_attr, value_p, len);
 434
 435   if (value_p != value)
 436     g_free (value_p);
 437 }
 438
 439 #endif /* defined HAVE_XATTR */
 440
 441 static void
 442 get_xattrs (const char            *path,
 443             gboolean               user,
 444             GFileInfo             *info,
 445             GFileAttributeMatcher *matcher,
 446             gboolean               follow_symlinks)
 447 {
 448 #ifdef HAVE_XATTR
 449   gboolean all;
 450   gsize list_size;
 451   ssize_t list_res_size;
 452   size_t len;
 453   char *list;
 454   const char *attr, *attr2;
 455
 456   if (user)
 457     all = g_file_attribute_matcher_enumerate_namespace (matcher, "xattr");
 458   else
 459     all = g_file_attribute_matcher_enumerate_namespace (matcher, "xattr-sys");
 460
 461   if (all)
 462     {
 463       list_res_size = g_listxattr (path, NULL, 0, follow_symlinks);
 464
 465       if (list_res_size == -1 ||
 466           list_res_size == 0)
 467         return;
 468
 469       list_size = list_res_size;
 470       list = g_malloc (list_size);
 471
 472     retry:
 473
 474       list_res_size = g_listxattr (path, list, list_size, follow_symlinks);
 475
 476       if (list_res_size == -1 && errno == ERANGE)
 477         {
 478           list_size = list_size * 2;
 479           list = g_realloc (list, list_size);
 480           goto retry;
 481         }
 482
 483       if (list_res_size == -1)
 484         return;
 485
 486       attr = list;
 487       while (list_res_size > 0)
 488         {
 489           if ((user && g_str_has_prefix (attr, "user.")) ||
 490               (!user && !g_str_has_prefix (attr, "user.")))
 491             {
 492               char *escaped_attr, *gio_attr;
 493               gboolean free_escaped_attr;
 494
 495               if (user)
 496                 {
 497                   escaped_attr = hex_escape_string (attr + 5, &free_escaped_attr);
 498                   gio_attr = g_strconcat ("xattr::", escaped_attr, NULL);
 499                 }
 500               else
 501                 {
 502                   escaped_attr = hex_escape_string (attr, &free_escaped_attr);
 503                   gio_attr = g_strconcat ("xattr-sys::", escaped_attr, NULL);
 504                 }
 505
 506               if (free_escaped_attr)
 507                 g_free (escaped_attr);
 508
 509               get_one_xattr (path, info, gio_attr, attr, follow_symlinks);
 510
 511               g_free (gio_attr);
 512             }
 513
 514           len = strlen (attr) + 1;
 515           attr += len;
 516           list_res_size -= len;
 517         }
 518
 519       g_free (list);
 520     }
 521   else
 522     {
 523       while ((attr = g_file_attribute_matcher_enumerate_next (matcher)) != NULL)
 524         {
 525           char *unescaped_attribute, *a;
 526           gboolean free_unescaped_attribute;
 527
 528           attr2 = strchr (attr, ':');
 529           if (attr2)
 530             {
 531               attr2 += 2; /* Skip '::' */
 532               unescaped_attribute = hex_unescape_string (attr2, NULL, &free_unescaped_attribute);
 533               if (user)
 534                 a = g_strconcat ("user.", unescaped_attribute, NULL);
 535               else
 536                 a = unescaped_attribute;
 537
 538               get_one_xattr (path, info, attr, a, follow_symlinks);
 539
 540               if (user)
 541                 g_free (a);
 542
 543               if (free_unescaped_attribute)
 544                 g_free (unescaped_attribute);
 545             }
 546         }
 547     }
 548 #endif /* defined HAVE_XATTR */
 549 }
 550
 551 #ifdef HAVE_XATTR
 552 static void
 553 get_one_xattr_from_fd (int         fd,
 554                        GFileInfo  *info,
 555                        const char *gio_attr,
 556                        const char *xattr)
 557 {
 558   char value[64];
 559   char *value_p;
 560   ssize_t len;
 561
 562   len = g_fgetxattr (fd, xattr, value, sizeof (value) - 1);
 563
 564   value_p = NULL;
 565   if (len >= 0)
 566     value_p = value;
 567   else if (len == -1 && errno == ERANGE)
 568     {
 569       len = g_fgetxattr (fd, xattr, NULL, 0);
 570
 571       if (len < 0)
 572         return;
 573
 574       value_p = g_malloc (len + 1);
 575
 576       len = g_fgetxattr (fd, xattr, value_p, len);
 577
 578       if (len < 0)
 579         {
 580           g_free (value_p);
 581           return;
 582         }
 583     }
 584   else
 585     return;
 586
 587   /* Null terminate */
 588   value_p[len] = 0;
 589
 590   escape_xattr (info, gio_attr, value_p, len);
 591
 592   if (value_p != value)
 593     g_free (value_p);
 594 }
 595 #endif /* defined HAVE_XATTR */
 596
 597 static void
 598 get_xattrs_from_fd (int                    fd,
 599                     gboolean               user,
 600                     GFileInfo             *info,
 601                     GFileAttributeMatcher *matcher)
 602 {
 603 #ifdef HAVE_XATTR
 604   gboolean all;
 605   gsize list_size;
 606   ssize_t list_res_size;
 607   size_t len;
 608   char *list;
 609   const char *attr, *attr2;
 610
 611   if (user)
 612     all = g_file_attribute_matcher_enumerate_namespace (matcher, "xattr");
 613   else
 614     all = g_file_attribute_matcher_enumerate_namespace (matcher, "xattr-sys");
 615
 616   if (all)
 617     {
 618       list_res_size = g_flistxattr (fd, NULL, 0);
 619
 620       if (list_res_size == -1 ||
 621           list_res_size == 0)
 622         return;
 623
 624       list_size = list_res_size;
 625       list = g_malloc (list_size);
 626
 627     retry:
 628
 629       list_res_size = g_flistxattr (fd, list, list_size);
 630
 631       if (list_res_size == -1 && errno == ERANGE)
 632         {
 633           list_size = list_size * 2;
 634           list = g_realloc (list, list_size);
 635           goto retry;
 636         }
 637
 638       if (list_res_size == -1)
 639         return;
 640
 641       attr = list;
 642       while (list_res_size > 0)
 643         {
 644           if ((user && g_str_has_prefix (attr, "user.")) ||
 645               (!user && !g_str_has_prefix (attr, "user.")))
 646             {
 647               char *escaped_attr, *gio_attr;
 648               gboolean free_escaped_attr;
 649
 650               if (user)
 651                 {
 652                   escaped_attr = hex_escape_string (attr + 5, &free_escaped_attr);
 653                   gio_attr = g_strconcat ("xattr::", escaped_attr, NULL);
 654                 }
 655               else
 656                 {
 657                   escaped_attr = hex_escape_string (attr, &free_escaped_attr);
 658                   gio_attr = g_strconcat ("xattr-sys::", escaped_attr, NULL);
 659                 }
 660
 661               if (free_escaped_attr)
 662                 g_free (escaped_attr);
 663
 664               get_one_xattr_from_fd (fd, info, gio_attr, attr);
 665               g_free (gio_attr);
 666             }
 667
 668           len = strlen (attr) + 1;
 669           attr += len;
 670           list_res_size -= len;
 671         }
 672
 673       g_free (list);
 674     }
 675   else
 676     {
 677       while ((attr = g_file_attribute_matcher_enumerate_next (matcher)) != NULL)
 678         {
 679           char *unescaped_attribute, *a;
 680           gboolean free_unescaped_attribute;
 681
 682           attr2 = strchr (attr, ':');
 683           if (attr2)
 684             {
 685               attr2++; /* Skip ':' */
 686               unescaped_attribute = hex_unescape_string (attr2, NULL, &free_unescaped_attribute);
 687               if (user)
 688                 a = g_strconcat ("user.", unescaped_attribute, NULL);
 689               else
 690                 a = unescaped_attribute;
 691
 692               get_one_xattr_from_fd (fd, info, attr, a);
 693
 694               if (user)
 695                 g_free (a);
 696
 697               if (free_unescaped_attribute)
 698                 g_free (unescaped_attribute);
 699             }
 700         }
 701     }
 702 #endif /* defined HAVE_XATTR */
 703 }
 704
 705 #ifdef HAVE_XATTR
 706 static gboolean
 707 set_xattr (char                       *filename,
 708            const char                 *escaped_attribute,
 709            const GFileAttributeValue  *attr_value,
 710            GError                    **error)
 711 {
 712   char *attribute, *value;
 713   gboolean free_attribute, free_value;
 714   int val_len, res, errsv;
 715   gboolean is_user;
 716   char *a;
 717
 718   if (attr_value == NULL)
 719     {
 720       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
 721                            _("Attribute value must be non-NULL"));
 722       return FALSE;
 723     }
 724
 725   if (attr_value->type != G_FILE_ATTRIBUTE_TYPE_STRING)
 726     {
 727       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
 728                            _("Invalid attribute type (string expected)"));
 729       return FALSE;
 730     }
 731
 732   if (!name_is_valid (escaped_attribute))
 733     {
 734       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
 735                            _("Invalid extended attribute name"));
 736       return FALSE;
 737     }
 738
 739   if (g_str_has_prefix (escaped_attribute, "xattr::"))
 740     {
 741       escaped_attribute += strlen ("xattr::");
 742       is_user = TRUE;
 743     }
 744   else
 745     {
 746       g_warn_if_fail (g_str_has_prefix (escaped_attribute, "xattr-sys::"));
 747       escaped_attribute += strlen ("xattr-sys::");
 748       is_user = FALSE;
 749     }
 750
 751   attribute = hex_unescape_string (escaped_attribute, NULL, &free_attribute);
 752   value = hex_unescape_string (attr_value->u.string, &val_len, &free_value);
 753
 754   if (is_user)
 755     a = g_strconcat ("user.", attribute, NULL);
 756   else
 757     a = attribute;
 758
 759   res = g_setxattr (filename, a, value, val_len);
 760   errsv = errno;
 761
 762   if (is_user)
 763     g_free (a);
 764
 765   if (free_attribute)
 766     g_free (attribute);
 767
 768   if (free_value)
 769     g_free (value);
 770
 771   if (res == -1)
 772     {
 773       g_set_error (error, G_IO_ERROR,
 774                    g_io_error_from_errno (errsv),
 775                    _("Error setting extended attribute “%s”: %s"),
 776                    escaped_attribute, g_strerror (errsv));
 777       return FALSE;
 778     }
 779
 780   return TRUE;
 781 }
 782
 783 #endif
 784
 785
 786 void
 787 _g_local_file_info_get_parent_info (const char            *dir,
 788                                     GFileAttributeMatcher *attribute_matcher,
 789                                     GLocalParentFileInfo  *parent_info)
 790 {
 791   GStatBuf statbuf;
 792   int res;
 793
 794   parent_info->extra_data = NULL;
 795   parent_info->free_extra_data = NULL;
 796   parent_info->writable = FALSE;
 797   parent_info->is_sticky = FALSE;
 798   parent_info->has_trash_dir = FALSE;
 799   parent_info->device = 0;
 800
 801   if (_g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_RENAME) ||
 802       _g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_DELETE) ||
 803       _g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_TRASH) ||
 804       _g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_UNIX_IS_MOUNTPOINT))
 805     {
 806       /* FIXME: Windows: The underlying _waccess() call in the C
 807        * library is mostly pointless as it only looks at the READONLY
 808        * FAT-style attribute of the file, it doesn't check the ACL at
 809        * all.
 810        */
 811       parent_info->writable = (g_access (dir, W_OK) == 0);
 812
 813       res = g_stat (dir, &statbuf);
 814
 815       /*
 816        * The sticky bit (S_ISVTX) on a directory means that a file in that directory can be
 817        * renamed or deleted only by the owner of the file, by the owner of the directory, and
 818        * by a privileged process.
 819        */
 820       if (res == 0)
 821         {
 822 #ifdef S_ISVTX
 823           parent_info->is_sticky = (statbuf.st_mode & S_ISVTX) != 0;
 824 #else
 825           parent_info->is_sticky = FALSE;
 826 #endif
 827           parent_info->owner = statbuf.st_uid;
 828           parent_info->device = statbuf.st_dev;
 829           /* No need to find trash dir if it's not writable anyway */
 830           if (parent_info->writable &&
 831               _g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_TRASH))
 832             parent_info->has_trash_dir = _g_local_file_has_trash_dir (dir, statbuf.st_dev);
 833         }
 834     }
 835 }
 836
 837 void
 838 _g_local_file_info_free_parent_info (GLocalParentFileInfo *parent_info)
 839 {
 840   if (parent_info->extra_data &&
 841       parent_info->free_extra_data)
 842     parent_info->free_extra_data (parent_info->extra_data);
 843 }
 844
 845 static void
 846 get_access_rights (GFileAttributeMatcher *attribute_matcher,
 847                    GFileInfo             *info,
 848                    const gchar           *path,
 849                    GLocalFileStat        *statbuf,
 850                    GLocalParentFileInfo  *parent_info)
 851 {
 852   /* FIXME: Windows: The underlyin _waccess() is mostly pointless */
 853   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 854                                             G_FILE_ATTRIBUTE_ID_ACCESS_CAN_READ))
 855     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_READ,
 856                                              g_access (path, R_OK) == 0);
 857
 858   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 859                                             G_FILE_ATTRIBUTE_ID_ACCESS_CAN_WRITE))
 860     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_WRITE,
 861                                              g_access (path, W_OK) == 0);
 862
 863   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 864                                             G_FILE_ATTRIBUTE_ID_ACCESS_CAN_EXECUTE))
 865     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_EXECUTE,
 866                                              g_access (path, X_OK) == 0);
 867
 868
 869   if (parent_info)
 870     {
 871       gboolean writable;
 872
 873       writable = FALSE;
 874       if (parent_info->writable)
 875         {
 876           if (parent_info->is_sticky)
 877             {
 878 #ifndef G_OS_WIN32
 879               uid_t uid = geteuid ();
 880
 881               if (uid == statbuf->st_uid ||
 882                   uid == parent_info->owner ||
 883                   uid == 0)
 884 #endif
 885                 writable = TRUE;
 886             }
 887           else
 888             writable = TRUE;
 889         }
 890
 891       if (_g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_RENAME))
 892         _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_RENAME,
 893                                                  writable);
 894
 895       if (_g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_DELETE))
 896         _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_DELETE,
 897                                                  writable);
 898
 899       if (_g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_TRASH))
 900         _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_TRASH,
 901                                                  writable && parent_info->has_trash_dir);
 902     }
 903 }
 904
 905 static void
 906 set_info_from_stat (GFileInfo             *info,
 907                     GLocalFileStat        *statbuf,
 908                     GFileAttributeMatcher *attribute_matcher)
 909 {
 910   GFileType file_type;
 911
 912   file_type = G_FILE_TYPE_UNKNOWN;
 913
 914   if (S_ISREG (statbuf->st_mode))
 915     file_type = G_FILE_TYPE_REGULAR;
 916   else if (S_ISDIR (statbuf->st_mode))
 917     file_type = G_FILE_TYPE_DIRECTORY;
 918 #ifndef G_OS_WIN32
 919   else if (S_ISCHR (statbuf->st_mode) ||
 920            S_ISBLK (statbuf->st_mode) ||
 921            S_ISFIFO (statbuf->st_mode)
 922 #ifdef S_ISSOCK
 923            || S_ISSOCK (statbuf->st_mode)
 924 #endif
 925            )
 926     file_type = G_FILE_TYPE_SPECIAL;
 927 #endif
 928 #ifdef S_ISLNK
 929   else if (S_ISLNK (statbuf->st_mode))
 930     file_type = G_FILE_TYPE_SYMBOLIC_LINK;
 931 #endif
 932
 933   g_file_info_set_file_type (info, file_type);
 934   g_file_info_set_size (info, statbuf->st_size);
 935
 936   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_DEVICE, statbuf->st_dev);
 937 #ifndef G_OS_WIN32
 938   /* Pointless setting these on Windows even if they exist in the struct */
 939   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_INODE, statbuf->st_ino);
 940   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_NLINK, statbuf->st_nlink);
 941   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_UID, statbuf->st_uid);
 942   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_GID, statbuf->st_gid);
 943   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_RDEV, statbuf->st_rdev);
 944 #endif
 945   /* FIXME: st_mode is mostly pointless on Windows, too. Set the attribute or not? */
 946   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_MODE, statbuf->st_mode);
 947 #if defined (HAVE_STRUCT_STAT_ST_BLKSIZE)
 948   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_BLOCK_SIZE, statbuf->st_blksize);
 949 #endif
 950 #if defined (HAVE_STRUCT_STAT_ST_BLOCKS)
 951   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_BLOCKS, statbuf->st_blocks);
 952   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_ALLOCATED_SIZE,
 953                                           statbuf->st_blocks * G_GUINT64_CONSTANT (512));
 954 #endif
 955
 956   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_MODIFIED, statbuf->st_mtime);
 957 #if defined (HAVE_STRUCT_STAT_ST_MTIMENSEC)
 958   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_MODIFIED_USEC, statbuf->st_mtimensec / 1000);
 959 #elif defined (HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
 960   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_MODIFIED_USEC, statbuf->st_mtim.tv_nsec / 1000);
 961 #endif
 962
 963   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_ACCESS, statbuf->st_atime);
 964 #if defined (HAVE_STRUCT_STAT_ST_ATIMENSEC)
 965   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_ACCESS_USEC, statbuf->st_atimensec / 1000);
 966 #elif defined (HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC)
 967   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_ACCESS_USEC, statbuf->st_atim.tv_nsec / 1000);
 968 #endif
 969
 970   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CHANGED, statbuf->st_ctime);
 971 #if defined (HAVE_STRUCT_STAT_ST_CTIMENSEC)
 972   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CHANGED_USEC, statbuf->st_ctimensec / 1000);
 973 #elif defined (HAVE_STRUCT_STAT_ST_CTIM_TV_NSEC)
 974   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CHANGED_USEC, statbuf->st_ctim.tv_nsec / 1000);
 975 #endif
 976
 977 #if defined (HAVE_STRUCT_STAT_ST_BIRTHTIME) && defined (HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC)
 978   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CREATED, statbuf->st_birthtime);
 979   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CREATED_USEC, statbuf->st_birthtimensec / 1000);
 980 #elif defined (HAVE_STRUCT_STAT_ST_BIRTHTIM) && defined (HAVE_STRUCT_STAT_ST_BIRTHTIM_TV_NSEC)
 981   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CREATED, statbuf->st_birthtim.tv_sec);
 982   _g_file_info_set_attribute_uint32_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CREATED_USEC, statbuf->st_birthtim.tv_nsec / 1000);
 983 #elif defined (HAVE_STRUCT_STAT_ST_BIRTHTIME)
 984   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CREATED, statbuf->st_birthtime);
 985 #elif defined (HAVE_STRUCT_STAT_ST_BIRTHTIM)
 986   _g_file_info_set_attribute_uint64_by_id (info, G_FILE_ATTRIBUTE_ID_TIME_CREATED, statbuf->st_birthtim);
 987 #endif
 988
 989   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 990                                             G_FILE_ATTRIBUTE_ID_ETAG_VALUE))
 991     {
 992       char *etag = _g_local_file_info_create_etag (statbuf);
 993       _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_ETAG_VALUE, etag);
 994       g_free (etag);
 995     }
 996
 997   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 998                                             G_FILE_ATTRIBUTE_ID_ID_FILE))
 999     {
1000       char *id = _g_local_file_info_create_file_id (statbuf);
1001       _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_ID_FILE, id);
1002       g_free (id);
1003     }
1004
1005   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1006                                             G_FILE_ATTRIBUTE_ID_ID_FILESYSTEM))
1007     {
1008       char *id = _g_local_file_info_create_fs_id (statbuf);
1009       _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_ID_FILESYSTEM, id);
1010       g_free (id);
1011     }
1012 }
1013
1014 #ifndef G_OS_WIN32
1015
1016 static char *
1017 make_valid_utf8 (const char *name)
1018 {
1019   GString *string;
1020   const gchar *remainder, *invalid;
1021   gint remaining_bytes, valid_bytes;
1022
1023   string = NULL;
1024   remainder = name;
1025   remaining_bytes = strlen (name);
1026
1027   while (remaining_bytes != 0)
1028     {
1029       if (g_utf8_validate (remainder, remaining_bytes, &invalid))
1030         break;
1031       valid_bytes = invalid - remainder;
1032
1033       if (string == NULL)
1034         string = g_string_sized_new (remaining_bytes);
1035
1036       g_string_append_len (string, remainder, valid_bytes);
1037       /* append U+FFFD REPLACEMENT CHARACTER */
1038       g_string_append (string, "\357\277\275");
1039
1040       remaining_bytes -= valid_bytes + 1;
1041       remainder = invalid + 1;
1042     }
1043
1044   if (string == NULL)
1045     return g_strdup (name);
1046
1047   g_string_append (string, remainder);
1048
1049   g_warn_if_fail (g_utf8_validate (string->str, -1, NULL));
1050
1051   return g_string_free (string, FALSE);
1052 }
1053
1054 static char *
1055 convert_pwd_string_to_utf8 (char *pwd_str)
1056 {
1057   char *utf8_string;
1058
1059   if (!g_utf8_validate (pwd_str, -1, NULL))
1060     {
1061       utf8_string = g_locale_to_utf8 (pwd_str, -1, NULL, NULL, NULL);
1062       if (utf8_string == NULL)
1063         utf8_string = make_valid_utf8 (pwd_str);
1064     }
1065   else
1066     utf8_string = g_strdup (pwd_str);
1067
1068   return utf8_string;
1069 }
1070
1071 static void
1072 uid_data_free (UidData *data)
1073 {
1074   g_free (data->user_name);
1075   g_free (data->real_name);
1076   g_free (data);
1077 }
1078
1079 /* called with lock held */
1080 static UidData *
1081 lookup_uid_data (uid_t uid)
1082 {
1083   UidData *data;
1084   char buffer[4096];
1085   struct passwd pwbuf;
1086   struct passwd *pwbufp;
1087   char *gecos, *comma;
1088
1089   if (uid_cache == NULL)
1090     uid_cache = g_hash_table_new_full (NULL, NULL, NULL, (GDestroyNotify)uid_data_free);
1091
1092   data = g_hash_table_lookup (uid_cache, GINT_TO_POINTER (uid));
1093
1094   if (data)
1095     return data;
1096
1097   data = g_new0 (UidData, 1);
1098
1099 #if defined(HAVE_GETPWUID_R)
1100   getpwuid_r (uid, &pwbuf, buffer, sizeof(buffer), &pwbufp);
1101 #else
1102   pwbufp = getpwuid (uid);
1103 #endif
1104
1105   if (pwbufp != NULL)
1106     {
1107       if (pwbufp->pw_name != NULL && pwbufp->pw_name[0] != 0)
1108         data->user_name = convert_pwd_string_to_utf8 (pwbufp->pw_name);
1109
1110 #ifndef __BIONIC__
1111       gecos = pwbufp->pw_gecos;
1112
1113       if (gecos)
1114         {
1115           comma = strchr (gecos, ',');
1116           if (comma)
1117             *comma = 0;
1118           data->real_name = convert_pwd_string_to_utf8 (gecos);
1119         }
1120 #endif
1121     }
1122
1123   /* Default fallbacks */
1124   if (data->real_name == NULL)
1125     {
1126       if (data->user_name != NULL)
1127         data->real_name = g_strdup (data->user_name);
1128       else
1129         data->real_name = g_strdup_printf ("user #%d", (int)uid);
1130     }
1131
1132   if (data->user_name == NULL)
1133     data->user_name = g_strdup_printf ("%d", (int)uid);
1134
1135   g_hash_table_replace (uid_cache, GINT_TO_POINTER (uid), data);
1136
1137   return data;
1138 }
1139
1140 static char *
1141 get_username_from_uid (uid_t uid)
1142 {
1143   char *res;
1144   UidData *data;
1145
1146   G_LOCK (uid_cache);
1147   data = lookup_uid_data (uid);
1148   res = g_strdup (data->user_name);
1149   G_UNLOCK (uid_cache);
1150
1151   return res;
1152 }
1153
1154 static char *
1155 get_realname_from_uid (uid_t uid)
1156 {
1157   char *res;
1158   UidData *data;
1159
1160   G_LOCK (uid_cache);
1161   data = lookup_uid_data (uid);
1162   res = g_strdup (data->real_name);
1163   G_UNLOCK (uid_cache);
1164
1165   return res;
1166 }
1167
1168 /* called with lock held */
1169 static char *
1170 lookup_gid_name (gid_t gid)
1171 {
1172   char *name;
1173   char buffer[4096];
1174   struct group gbuf;
1175   struct group *gbufp;
1176
1177   if (gid_cache == NULL)
1178     gid_cache = g_hash_table_new_full (NULL, NULL, NULL, (GDestroyNotify)g_free);
1179
1180   name = g_hash_table_lookup (gid_cache, GINT_TO_POINTER (gid));
1181
1182   if (name)
1183     return name;
1184
1185 #if defined (HAVE_GETGRGID_R)
1186   getgrgid_r (gid, &gbuf, buffer, sizeof(buffer), &gbufp);
1187 #else
1188   gbufp = getgrgid (gid);
1189 #endif
1190
1191   if (gbufp != NULL &&
1192       gbufp->gr_name != NULL &&
1193       gbufp->gr_name[0] != 0)
1194     name = convert_pwd_string_to_utf8 (gbufp->gr_name);
1195   else
1196     name = g_strdup_printf("%d", (int)gid);
1197
1198   g_hash_table_replace (gid_cache, GINT_TO_POINTER (gid), name);
1199
1200   return name;
1201 }
1202
1203 static char *
1204 get_groupname_from_gid (gid_t gid)
1205 {
1206   char *res;
1207   char *name;
1208
1209   G_LOCK (gid_cache);
1210   name = lookup_gid_name (gid);
1211   res = g_strdup (name);
1212   G_UNLOCK (gid_cache);
1213   return res;
1214 }
1215
1216 #endif /* !G_OS_WIN32 */
1217
1218 static char *
1219 get_content_type (const char          *basename,
1220                   const char          *path,
1221                   GLocalFileStat      *statbuf,
1222                   gboolean             is_symlink,
1223                   gboolean             symlink_broken,
1224                   GFileQueryInfoFlags  flags,
1225                   gboolean             fast)
1226 {
1227   if (is_symlink &&
1228       (symlink_broken || (flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS)))
1229     return g_content_type_from_mime_type ("inode/symlink");
1230   else if (statbuf != NULL && S_ISDIR(statbuf->st_mode))
1231     return g_content_type_from_mime_type ("inode/directory");
1232 #ifndef G_OS_WIN32
1233   else if (statbuf != NULL && S_ISCHR(statbuf->st_mode))
1234     return g_content_type_from_mime_type ("inode/chardevice");
1235   else if (statbuf != NULL && S_ISBLK(statbuf->st_mode))
1236     return g_content_type_from_mime_type ("inode/blockdevice");
1237   else if (statbuf != NULL && S_ISFIFO(statbuf->st_mode))
1238     return g_content_type_from_mime_type ("inode/fifo");
1239   else if (statbuf != NULL && S_ISREG(statbuf->st_mode) && statbuf->st_size == 0)
1240     {
1241       /* Don't sniff zero-length files in order to avoid reading files
1242        * that appear normal but are not (eg: files in /proc and /sys)
1243        *
1244        * Note that we need to return text/plain here so that
1245        * newly-created text files are opened by the text editor.
1246        * See https://bugzilla.gnome.org/show_bug.cgi?id=755795
1247        */
1248       return g_content_type_from_mime_type ("text/plain");
1249     }
1250 #endif
1251 #ifdef S_ISSOCK
1252   else if (statbuf != NULL && S_ISSOCK(statbuf->st_mode))
1253     return g_content_type_from_mime_type ("inode/socket");
1254 #endif
1255   else
1256     {
1257       char *content_type;
1258       gboolean result_uncertain;
1259
1260       content_type = g_content_type_guess (basename, NULL, 0, &result_uncertain);
1261
1262 #ifndef G_OS_WIN32
1263       if (!fast && result_uncertain && path != NULL)
1264         {
1265           guchar sniff_buffer[4096];
1266           gsize sniff_length;
1267           int fd;
1268
1269           sniff_length = _g_unix_content_type_get_sniff_len ();
1270           if (sniff_length > 4096)
1271             sniff_length = 4096;
1272
1273 #ifdef O_NOATIME
1274           fd = g_open (path, O_RDONLY | O_NOATIME, 0);
1275           if (fd < 0 && errno == EPERM)
1276 #endif
1277             fd = g_open (path, O_RDONLY, 0);
1278
1279           if (fd != -1)
1280             {
1281               ssize_t res;
1282
1283               res = read (fd, sniff_buffer, sniff_length);
1284               (void) g_close (fd, NULL);
1285               if (res >= 0)
1286                 {
1287                   g_free (content_type);
1288                   content_type = g_content_type_guess (basename, sniff_buffer, res, NULL);
1289                 }
1290             }
1291         }
1292 #endif
1293
1294       return content_type;
1295     }
1296
1297 }
1298
1299 /* @stat_buf is the pre-calculated result of stat(path), or %NULL if that failed. */
1300 static void
1301 get_thumbnail_attributes (const char     *path,
1302                           GFileInfo      *info,
1303                           const GLocalFileStat *stat_buf)
1304 {
1305   GChecksum *checksum;
1306   char *uri;
1307   char *filename;
1308   char *basename;
1309
1310   uri = g_filename_to_uri (path, NULL, NULL);
1311
1312   checksum = g_checksum_new (G_CHECKSUM_MD5);
1313   g_checksum_update (checksum, (const guchar *) uri, strlen (uri));
1314
1315   basename = g_strconcat (g_checksum_get_string (checksum), ".png", NULL);
1316   g_checksum_free (checksum);
1317
1318   filename = g_build_filename (g_get_user_cache_dir (),
1319                                "thumbnails", "large", basename,
1320                                NULL);
1321
1322   if (g_file_test (filename, G_FILE_TEST_IS_REGULAR))
1323     {
1324       _g_file_info_set_attribute_byte_string_by_id (info, G_FILE_ATTRIBUTE_ID_THUMBNAIL_PATH, filename);
1325       _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_THUMBNAIL_IS_VALID,
1326                                                 thumbnail_verify (filename, uri, stat_buf));
1327     }
1328   else
1329     {
1330       g_free (filename);
1331       filename = g_build_filename (g_get_user_cache_dir (),
1332                                    "thumbnails", "normal", basename,
1333                                    NULL);
1334
1335       if (g_file_test (filename, G_FILE_TEST_IS_REGULAR))
1336         {
1337           _g_file_info_set_attribute_byte_string_by_id (info, G_FILE_ATTRIBUTE_ID_THUMBNAIL_PATH, filename);
1338           _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_THUMBNAIL_IS_VALID,
1339                                                     thumbnail_verify (filename, uri, stat_buf));
1340         }
1341       else
1342         {
1343           g_free (filename);
1344           filename = g_build_filename (g_get_user_cache_dir (),
1345                                        "thumbnails", "fail",
1346                                        "gnome-thumbnail-factory",
1347                                        basename,
1348                                        NULL);
1349
1350           if (g_file_test (filename, G_FILE_TEST_IS_REGULAR))
1351             {
1352               _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_THUMBNAILING_FAILED, TRUE);
1353               _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_THUMBNAIL_IS_VALID,
1354                                                         thumbnail_verify (filename, uri, stat_buf));
1355             }
1356         }
1357     }
1358   g_free (basename);
1359   g_free (filename);
1360   g_free (uri);
1361 }
1362
1363 #ifdef G_OS_WIN32
1364 static void
1365 win32_get_file_user_info (const gchar  *filename,
1366                           gchar       **group_name,
1367                           gchar       **user_name,
1368                           gchar       **real_name)
1369 {
1370   PSECURITY_DESCRIPTOR psd = NULL;
1371   DWORD sd_size = 0; /* first call calculates the size required */
1372
1373   wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
1374   if ((GetFileSecurityW (wfilename,
1375                         GROUP_SECURITY_INFORMATION | OWNER_SECURITY_INFORMATION,
1376                         NULL,
1377                         sd_size,
1378                         &sd_size) || (ERROR_INSUFFICIENT_BUFFER == GetLastError())) &&
1379      (psd = g_try_malloc (sd_size)) != NULL &&
1380      GetFileSecurityW (wfilename,
1381                        GROUP_SECURITY_INFORMATION | OWNER_SECURITY_INFORMATION,
1382                        psd,
1383                        sd_size,
1384                        &sd_size))
1385     {
1386       PSID psid = 0;
1387       BOOL defaulted;
1388       SID_NAME_USE name_use = 0; /* don't care? */
1389       wchar_t *name = NULL;
1390       wchar_t *domain = NULL;
1391       DWORD name_len = 0;
1392       DWORD domain_len = 0;
1393       /* get the user name */
1394       do {
1395         if (!user_name)
1396           break;
1397         if (!GetSecurityDescriptorOwner (psd, &psid, &defaulted))
1398           break;
1399         if (!LookupAccountSidW (NULL, /* local machine */
1400                                 psid,
1401                                 name, &name_len,
1402                                 domain, &domain_len, /* no domain info yet */
1403                                 &name_use)  && (ERROR_INSUFFICIENT_BUFFER != GetLastError()))
1404           break;
1405         name = g_try_malloc (name_len * sizeof (wchar_t));
1406         domain = g_try_malloc (domain_len * sizeof (wchar_t));
1407         if (name && domain &&
1408             LookupAccountSidW (NULL, /* local machine */
1409                                psid,
1410                                name, &name_len,
1411                                domain, &domain_len, /* no domain info yet */
1412                                &name_use))
1413           {
1414             *user_name = g_utf16_to_utf8 (name, -1, NULL, NULL, NULL);
1415           }
1416         g_free (name);
1417         g_free (domain);
1418       } while (FALSE);
1419
1420       /* get the group name */
1421       do {
1422         if (!group_name)
1423           break;
1424         if (!GetSecurityDescriptorGroup (psd, &psid, &defaulted))
1425           break;
1426         if (!LookupAccountSidW (NULL, /* local machine */
1427                                 psid,
1428                                 name, &name_len,
1429                                 domain, &domain_len, /* no domain info yet */
1430                                 &name_use)  && (ERROR_INSUFFICIENT_BUFFER != GetLastError()))
1431           break;
1432         name = g_try_malloc (name_len * sizeof (wchar_t));
1433         domain = g_try_malloc (domain_len * sizeof (wchar_t));
1434         if (name && domain &&
1435             LookupAccountSidW (NULL, /* local machine */
1436                                psid,
1437                                name, &name_len,
1438                                domain, &domain_len, /* no domain info yet */
1439                                &name_use))
1440           {
1441             *group_name = g_utf16_to_utf8 (name, -1, NULL, NULL, NULL);
1442           }
1443         g_free (name);
1444         g_free (domain);
1445       } while (FALSE);
1446
1447       /* TODO: get real name */
1448
1449       g_free (psd);
1450     }
1451   g_free (wfilename);
1452 }
1453 #endif /* G_OS_WIN32 */
1454
1455 #ifndef G_OS_WIN32
1456 /* support for '.hidden' files */
1457 G_LOCK_DEFINE_STATIC (hidden_cache);
1458 static GHashTable *hidden_cache;
1459
1460 static gboolean
1461 remove_from_hidden_cache (gpointer user_data)
1462 {
1463   G_LOCK (hidden_cache);
1464   g_hash_table_remove (hidden_cache, user_data);
1465   G_UNLOCK (hidden_cache);
1466
1467   return FALSE;
1468 }
1469
1470 static GHashTable *
1471 read_hidden_file (const gchar *dirname)
1472 {
1473   gchar *contents = NULL;
1474   gchar *filename;
1475
1476   filename = g_build_path ("/", dirname, ".hidden", NULL);
1477   (void) g_file_get_contents (filename, &contents, NULL, NULL);
1478   g_free (filename);
1479
1480   if (contents != NULL)
1481     {
1482       GHashTable *table;
1483       gchar **lines;
1484       gint i;
1485
1486       table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1487
1488       lines = g_strsplit (contents, "\n", 0);
1489       g_free (contents);
1490
1491       for (i = 0; lines[i]; i++)
1492         /* hash table takes the individual strings... */
1493         g_hash_table_add (table, lines[i]);
1494
1495       /* ... so we only free the container. */
1496       g_free (lines);
1497
1498       return table;
1499     }
1500   else
1501     return NULL;
1502 }
1503
1504 static void
1505 maybe_unref_hash_table (gpointer data)
1506 {
1507   if (data != NULL)
1508     g_hash_table_unref (data);
1509 }
1510
1511 static gboolean
1512 file_is_hidden (const gchar *path,
1513                 const gchar *basename)
1514 {
1515   gboolean result;
1516   gchar *dirname;
1517   gpointer table;
1518
1519   dirname = g_path_get_dirname (path);
1520
1521   G_LOCK (hidden_cache);
1522
1523   if G_UNLIKELY (hidden_cache == NULL)
1524     hidden_cache = g_hash_table_new_full (g_str_hash, g_str_equal,
1525                                           g_free, maybe_unref_hash_table);
1526
1527   if (!g_hash_table_lookup_extended (hidden_cache, dirname,
1528                                      NULL, &table))
1529     {
1530       gchar *mydirname;
1531       GSource *remove_from_cache_source;
1532
1533       g_hash_table_insert (hidden_cache,
1534                            mydirname = g_strdup (dirname),
1535                            table = read_hidden_file (dirname));
1536
1537       remove_from_cache_source = g_timeout_source_new_seconds (5);
1538       g_source_set_priority (remove_from_cache_source, G_PRIORITY_DEFAULT);
1539       g_source_set_callback (remove_from_cache_source,
1540                              remove_from_hidden_cache,
1541                              mydirname,
1542                              NULL);
1543       g_source_attach (remove_from_cache_source,
1544                        GLIB_PRIVATE_CALL (g_get_worker_context) ());
1545       g_source_unref (remove_from_cache_source);
1546     }
1547
1548   result = table != NULL && g_hash_table_contains (table, basename);
1549
1550   G_UNLOCK (hidden_cache);
1551
1552   g_free (dirname);
1553
1554   return result;
1555 }
1556 #endif /* !G_OS_WIN32 */
1557
1558 void
1559 _g_local_file_info_get_nostat (GFileInfo              *info,
1560                                const char             *basename,
1561                                const char             *path,
1562                                GFileAttributeMatcher  *attribute_matcher)
1563 {
1564   g_file_info_set_name (info, basename);
1565
1566   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1567                                             G_FILE_ATTRIBUTE_ID_STANDARD_DISPLAY_NAME))
1568     {
1569       char *display_name = g_filename_display_basename (path);
1570
1571       /* look for U+FFFD REPLACEMENT CHARACTER */
1572       if (strstr (display_name, "\357\277\275") != NULL)
1573         {
1574           char *p = display_name;
1575           display_name = g_strconcat (display_name, _(" (invalid encoding)"), NULL);
1576           g_free (p);
1577         }
1578       g_file_info_set_display_name (info, display_name);
1579       g_free (display_name);
1580     }
1581
1582   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1583                                             G_FILE_ATTRIBUTE_ID_STANDARD_EDIT_NAME))
1584     {
1585       char *edit_name = g_filename_display_basename (path);
1586       g_file_info_set_edit_name (info, edit_name);
1587       g_free (edit_name);
1588     }
1589
1590
1591   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1592                                             G_FILE_ATTRIBUTE_ID_STANDARD_COPY_NAME))
1593     {
1594       char *copy_name = g_filename_to_utf8 (basename, -1, NULL, NULL, NULL);
1595       if (copy_name)
1596         _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_COPY_NAME, copy_name);
1597       g_free (copy_name);
1598     }
1599 }
1600
1601 static const char *
1602 get_icon_name (const char *path,
1603                const char *content_type,
1604                gboolean    use_symbolic,
1605                gboolean   *with_fallbacks_out)
1606 {
1607   const char *name = NULL;
1608   gboolean with_fallbacks = TRUE;
1609
1610   if (strcmp (path, g_get_home_dir ()) == 0)
1611     {
1612       name = use_symbolic ? "user-home-symbolic" : "user-home";
1613       with_fallbacks = FALSE;
1614     }
1615   else if (strcmp (path, g_get_user_special_dir (G_USER_DIRECTORY_DESKTOP)) == 0)
1616     {
1617       name = use_symbolic ? "user-desktop-symbolic" : "user-desktop";
1618       with_fallbacks = FALSE;
1619     }
1620   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_DOCUMENTS)) == 0)
1621     {
1622       name = use_symbolic ? "folder-documents-symbolic" : "folder-documents";
1623     }
1624   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_DOWNLOAD)) == 0)
1625     {
1626       name = use_symbolic ? "folder-download-symbolic" : "folder-download";
1627     }
1628   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_MUSIC)) == 0)
1629     {
1630       name = use_symbolic ? "folder-music-symbolic" : "folder-music";
1631     }
1632   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_PICTURES)) == 0)
1633     {
1634       name = use_symbolic ? "folder-pictures-symbolic" : "folder-pictures";
1635     }
1636   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_PUBLIC_SHARE)) == 0)
1637     {
1638       name = use_symbolic ? "folder-publicshare-symbolic" : "folder-publicshare";
1639     }
1640   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_TEMPLATES)) == 0)
1641     {
1642       name = use_symbolic ? "folder-templates-symbolic" : "folder-templates";
1643     }
1644   else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_VIDEOS)) == 0)
1645     {
1646       name = use_symbolic ? "folder-videos-symbolic" : "folder-videos";
1647     }
1648   else if (g_strcmp0 (content_type, "inode/directory") == 0)
1649     {
1650       name = use_symbolic ? "folder-symbolic" : "folder";
1651     }
1652   else
1653     {
1654       name = NULL;
1655     }
1656
1657   if (with_fallbacks_out != NULL)
1658     *with_fallbacks_out = with_fallbacks;
1659
1660   return name;
1661 }
1662
1663 static GIcon *
1664 get_icon (const char *path,
1665           const char *content_type,
1666           gboolean    use_symbolic)
1667 {
1668   GIcon *icon = NULL;
1669   const char *icon_name;
1670   gboolean with_fallbacks;
1671
1672   icon_name = get_icon_name (path, content_type, use_symbolic, &with_fallbacks);
1673   if (icon_name != NULL)
1674     {
1675       if (with_fallbacks)
1676         icon = g_themed_icon_new_with_default_fallbacks (icon_name);
1677       else
1678         icon = g_themed_icon_new (icon_name);
1679     }
1680   else
1681     {
1682       if (use_symbolic)
1683         icon = g_content_type_get_symbolic_icon (content_type);
1684       else
1685         icon = g_content_type_get_icon (content_type);
1686     }
1687
1688   return icon;
1689 }
1690
1691 GFileInfo *
1692 _g_local_file_info_get (const char             *basename,
1693                         const char             *path,
1694                         GFileAttributeMatcher  *attribute_matcher,
1695                         GFileQueryInfoFlags     flags,
1696                         GLocalParentFileInfo   *parent_info,
1697                         GError                **error)
1698 {
1699   GFileInfo *info;
1700   GLocalFileStat statbuf;
1701 #ifdef S_ISLNK
1702   struct stat statbuf2;
1703 #endif
1704   int res;
1705   gboolean stat_ok;
1706   gboolean is_symlink, symlink_broken;
1707 #ifdef G_OS_WIN32
1708   DWORD dos_attributes;
1709 #endif
1710   char *symlink_target;
1711   GVfs *vfs;
1712   GVfsClass *class;
1713   guint64 device;
1714
1715   info = g_file_info_new ();
1716
1717   /* Make sure we don't set any unwanted attributes */
1718   g_file_info_set_attribute_mask (info, attribute_matcher);
1719
1720   _g_local_file_info_get_nostat (info, basename, path, attribute_matcher);
1721
1722   if (attribute_matcher == NULL)
1723     {
1724       g_file_info_unset_attribute_mask (info);
1725       return info;
1726     }
1727
1728 #ifndef G_OS_WIN32
1729   res = g_lstat (path, &statbuf);
1730 #else
1731   {
1732     wchar_t *wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, error);
1733     int len;
1734
1735     if (wpath == NULL)
1736       {
1737         g_object_unref (info);
1738         return NULL;
1739       }
1740
1741     len = wcslen (wpath);
1742     while (len > 0 && G_IS_DIR_SEPARATOR (wpath[len-1]))
1743       len--;
1744     if (len > 0 &&
1745         (!g_path_is_absolute (path) || len > g_path_skip_root (path) - path))
1746       wpath[len] = '\0';
1747
1748     res = _wstati64 (wpath, &statbuf);
1749     dos_attributes = GetFileAttributesW (wpath);
1750
1751     g_free (wpath);
1752   }
1753 #endif
1754
1755   if (res == -1)
1756     {
1757       int errsv = errno;
1758
1759       /* Don't bail out if we get Permission denied (SELinux?) */
1760       if (errsv != EACCES)
1761         {
1762           char *display_name = g_filename_display_name (path);
1763           g_object_unref (info);
1764           g_set_error (error, G_IO_ERROR,
1765                        g_io_error_from_errno (errsv),
1766                        _("Error when getting information for file “%s”: %s"),
1767                        display_name, g_strerror (errsv));
1768           g_free (display_name);
1769           return NULL;
1770         }
1771     }
1772
1773   /* Even if stat() fails, try to get as much as other attributes possible */
1774   stat_ok = res != -1;
1775
1776   if (stat_ok)
1777     device = statbuf.st_dev;
1778   else
1779     device = 0;
1780
1781 #ifdef S_ISLNK
1782   is_symlink = stat_ok && S_ISLNK (statbuf.st_mode);
1783 #else
1784   is_symlink = FALSE;
1785 #endif
1786   symlink_broken = FALSE;
1787 #ifdef S_ISLNK
1788   if (is_symlink)
1789     {
1790       g_file_info_set_is_symlink (info, TRUE);
1791
1792       /* Unless NOFOLLOW was set we default to following symlinks */
1793       if (!(flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS))
1794         {
1795           res = stat (path, &statbuf2);
1796
1797           /* Report broken links as symlinks */
1798           if (res != -1)
1799             {
1800               statbuf = statbuf2;
1801               stat_ok = TRUE;
1802             }
1803           else
1804             symlink_broken = TRUE;
1805         }
1806     }
1807 #endif
1808
1809   if (stat_ok)
1810     set_info_from_stat (info, &statbuf, attribute_matcher);
1811
1812 #ifdef G_OS_UNIX
1813   if (stat_ok && _g_local_file_is_lost_found_dir (path, statbuf.st_dev))
1814     g_file_info_set_is_hidden (info, TRUE);
1815 #endif
1816
1817 #ifndef G_OS_WIN32
1818   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1819                                             G_FILE_ATTRIBUTE_ID_STANDARD_IS_HIDDEN))
1820     {
1821       if (basename != NULL &&
1822           (basename[0] == '.' ||
1823            file_is_hidden (path, basename)))
1824         g_file_info_set_is_hidden (info, TRUE);
1825     }
1826
1827   if (basename != NULL && basename[strlen (basename) -1] == '~' &&
1828       (stat_ok && S_ISREG (statbuf.st_mode)))
1829     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_IS_BACKUP, TRUE);
1830 #else
1831   if (dos_attributes & FILE_ATTRIBUTE_HIDDEN)
1832     g_file_info_set_is_hidden (info, TRUE);
1833
1834   if (dos_attributes & FILE_ATTRIBUTE_ARCHIVE)
1835     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_DOS_IS_ARCHIVE, TRUE);
1836
1837   if (dos_attributes & FILE_ATTRIBUTE_SYSTEM)
1838     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_DOS_IS_SYSTEM, TRUE);
1839 #endif
1840
1841   symlink_target = NULL;
1842 #ifdef S_ISLNK
1843   if (is_symlink)
1844     {
1845       symlink_target = read_link (path);
1846       if (symlink_target &&
1847           _g_file_attribute_matcher_matches_id (attribute_matcher,
1848                                                 G_FILE_ATTRIBUTE_ID_STANDARD_SYMLINK_TARGET))
1849         g_file_info_set_symlink_target (info, symlink_target);
1850     }
1851 #endif
1852   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1853                                             G_FILE_ATTRIBUTE_ID_STANDARD_CONTENT_TYPE) ||
1854       _g_file_attribute_matcher_matches_id (attribute_matcher,
1855                                             G_FILE_ATTRIBUTE_ID_STANDARD_ICON) ||
1856       _g_file_attribute_matcher_matches_id (attribute_matcher,
1857                                             G_FILE_ATTRIBUTE_ID_STANDARD_SYMBOLIC_ICON))
1858     {
1859       char *content_type = get_content_type (basename, path, stat_ok ? &statbuf : NULL, is_symlink, symlink_broken, flags, FALSE);
1860
1861       if (content_type)
1862         {
1863           g_file_info_set_content_type (info, content_type);
1864
1865           if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1866                                                      G_FILE_ATTRIBUTE_ID_STANDARD_ICON)
1867                || _g_file_attribute_matcher_matches_id (attribute_matcher,
1868                                                         G_FILE_ATTRIBUTE_ID_STANDARD_SYMBOLIC_ICON))
1869             {
1870               GIcon *icon;
1871
1872               /* non symbolic icon */
1873               icon = get_icon (path, content_type, FALSE);
1874               if (icon != NULL)
1875                 {
1876                   g_file_info_set_icon (info, icon);
1877                   g_object_unref (icon);
1878                 }
1879
1880               /* symbolic icon */
1881               icon = get_icon (path, content_type, TRUE);
1882               if (icon != NULL)
1883                 {
1884                   g_file_info_set_symbolic_icon (info, icon);
1885                   g_object_unref (icon);
1886                 }
1887
1888             }
1889
1890           g_free (content_type);
1891         }
1892     }
1893
1894   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1895                                             G_FILE_ATTRIBUTE_ID_STANDARD_FAST_CONTENT_TYPE))
1896     {
1897       char *content_type = get_content_type (basename, path, stat_ok ? &statbuf : NULL, is_symlink, symlink_broken, flags, TRUE);
1898
1899       if (content_type)
1900         {
1901           _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_STANDARD_FAST_CONTENT_TYPE, content_type);
1902           g_free (content_type);
1903         }
1904     }
1905
1906   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1907                                             G_FILE_ATTRIBUTE_ID_OWNER_USER))
1908     {
1909       char *name = NULL;
1910
1911 #ifdef G_OS_WIN32
1912       win32_get_file_user_info (path, NULL, &name, NULL);
1913 #else
1914       if (stat_ok)
1915         name = get_username_from_uid (statbuf.st_uid);
1916 #endif
1917       if (name)
1918         _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_OWNER_USER, name);
1919       g_free (name);
1920     }
1921
1922   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1923                                             G_FILE_ATTRIBUTE_ID_OWNER_USER_REAL))
1924     {
1925       char *name = NULL;
1926 #ifdef G_OS_WIN32
1927       win32_get_file_user_info (path, NULL, NULL, &name);
1928 #else
1929       if (stat_ok)
1930         name = get_realname_from_uid (statbuf.st_uid);
1931 #endif
1932       if (name)
1933         _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_OWNER_USER_REAL, name);
1934       g_free (name);
1935     }
1936
1937   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1938                                             G_FILE_ATTRIBUTE_ID_OWNER_GROUP))
1939     {
1940       char *name = NULL;
1941 #ifdef G_OS_WIN32
1942       win32_get_file_user_info (path, &name, NULL, NULL);
1943 #else
1944       if (stat_ok)
1945         name = get_groupname_from_gid (statbuf.st_gid);
1946 #endif
1947       if (name)
1948         _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_OWNER_GROUP, name);
1949       g_free (name);
1950     }
1951
1952   if (stat_ok && parent_info && parent_info->device != 0 &&
1953       _g_file_attribute_matcher_matches_id (attribute_matcher, G_FILE_ATTRIBUTE_ID_UNIX_IS_MOUNTPOINT) &&
1954       statbuf.st_dev != parent_info->device)
1955     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_UNIX_IS_MOUNTPOINT, TRUE);
1956
1957   if (stat_ok)
1958     get_access_rights (attribute_matcher, info, path, &statbuf, parent_info);
1959
1960 #ifdef HAVE_SELINUX
1961   get_selinux_context (path, info, attribute_matcher, (flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS) == 0);
1962 #endif
1963   get_xattrs (path, TRUE, info, attribute_matcher, (flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS) == 0);
1964   get_xattrs (path, FALSE, info, attribute_matcher, (flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS) == 0);
1965
1966   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
1967                                             G_FILE_ATTRIBUTE_ID_THUMBNAIL_PATH))
1968     {
1969       if (stat_ok)
1970           get_thumbnail_attributes (path, info, &statbuf);
1971       else
1972           get_thumbnail_attributes (path, info, NULL);
1973     }
1974
1975   vfs = g_vfs_get_default ();
1976   class = G_VFS_GET_CLASS (vfs);
1977   if (class->local_file_add_info)
1978     {
1979       class->local_file_add_info (vfs,
1980                                   path,
1981                                   device,
1982                                   attribute_matcher,
1983                                   info,
1984                                   NULL,
1985                                   &parent_info->extra_data,
1986                                   &parent_info->free_extra_data);
1987     }
1988
1989   g_file_info_unset_attribute_mask (info);
1990
1991   g_free (symlink_target);
1992
1993   return info;
1994 }
1995
1996 GFileInfo *
1997 _g_local_file_info_get_from_fd (int         fd,
1998                                 const char *attributes,
1999                                 GError    **error)
2000 {
2001   GLocalFileStat stat_buf;
2002   GFileAttributeMatcher *matcher;
2003   GFileInfo *info;
2004
2005 #ifdef G_OS_WIN32
2006 #define FSTAT _fstati64
2007 #else
2008 #define FSTAT fstat
2009 #endif
2010
2011   if (FSTAT (fd, &stat_buf) == -1)
2012     {
2013       int errsv = errno;
2014
2015       g_set_error (error, G_IO_ERROR,
2016                    g_io_error_from_errno (errsv),
2017                    _("Error when getting information for file descriptor: %s"),
2018                    g_strerror (errsv));
2019       return NULL;
2020     }
2021
2022   info = g_file_info_new ();
2023
2024   matcher = g_file_attribute_matcher_new (attributes);
2025
2026   /* Make sure we don't set any unwanted attributes */
2027   g_file_info_set_attribute_mask (info, matcher);
2028
2029   set_info_from_stat (info, &stat_buf, matcher);
2030
2031 #ifdef HAVE_SELINUX
2032   if (_g_file_attribute_matcher_matches_id (matcher, G_FILE_ATTRIBUTE_ID_SELINUX_CONTEXT) &&
2033       is_selinux_enabled ())
2034     {
2035       char *context;
2036       if (fgetfilecon_raw (fd, &context) >= 0)
2037         {
2038           _g_file_info_set_attribute_string_by_id (info, G_FILE_ATTRIBUTE_ID_SELINUX_CONTEXT, context);
2039           freecon (context);
2040         }
2041     }
2042 #endif
2043
2044   get_xattrs_from_fd (fd, TRUE, info, matcher);
2045   get_xattrs_from_fd (fd, FALSE, info, matcher);
2046
2047   g_file_attribute_matcher_unref (matcher);
2048
2049   g_file_info_unset_attribute_mask (info);
2050
2051   return info;
2052 }
2053
2054 static gboolean
2055 get_uint32 (const GFileAttributeValue  *value,
2056             guint32                    *val_out,
2057             GError                    **error)
2058 {
2059   if (value->type != G_FILE_ATTRIBUTE_TYPE_UINT32)
2060     {
2061       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2062                            _("Invalid attribute type (uint32 expected)"));
2063       return FALSE;
2064     }
2065
2066   *val_out = value->u.uint32;
2067
2068   return TRUE;
2069 }
2070
2071 #ifdef HAVE_UTIMES
2072 static gboolean
2073 get_uint64 (const GFileAttributeValue  *value,
2074             guint64                    *val_out,
2075             GError                    **error)
2076 {
2077   if (value->type != G_FILE_ATTRIBUTE_TYPE_UINT64)
2078     {
2079       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2080                            _("Invalid attribute type (uint64 expected)"));
2081       return FALSE;
2082     }
2083
2084   *val_out = value->u.uint64;
2085
2086   return TRUE;
2087 }
2088 #endif
2089
2090 #if defined(HAVE_SYMLINK)
2091 static gboolean
2092 get_byte_string (const GFileAttributeValue  *value,
2093                  const char                **val_out,
2094                  GError                    **error)
2095 {
2096   if (value->type != G_FILE_ATTRIBUTE_TYPE_BYTE_STRING)
2097     {
2098       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2099                            _("Invalid attribute type (byte string expected)"));
2100       return FALSE;
2101     }
2102
2103   *val_out = value->u.string;
2104
2105   return TRUE;
2106 }
2107 #endif
2108
2109 #ifdef HAVE_SELINUX
2110 static gboolean
2111 get_string (const GFileAttributeValue  *value,
2112             const char                **val_out,
2113             GError                    **error)
2114 {
2115   if (value->type != G_FILE_ATTRIBUTE_TYPE_STRING)
2116     {
2117       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2118                            _("Invalid attribute type (byte string expected)"));
2119       return FALSE;
2120     }
2121
2122   *val_out = value->u.string;
2123
2124   return TRUE;
2125 }
2126 #endif
2127
2128 static gboolean
2129 set_unix_mode (char                       *filename,
2130                GFileQueryInfoFlags         flags,
2131                const GFileAttributeValue  *value,
2132                GError                    **error)
2133 {
2134   guint32 val = 0;
2135   int res = 0;
2136
2137   if (!get_uint32 (value, &val, error))
2138     return FALSE;
2139
2140 #ifdef HAVE_SYMLINK
2141   if (flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS) {
2142 #ifdef HAVE_LCHMOD
2143     res = lchmod (filename, val);
2144 #else
2145     struct stat statbuf;
2146     /* Calling chmod on a symlink changes permissions on the symlink.
2147      * We don't want to do this, so we need to check for a symlink */
2148     res = g_lstat (filename, &statbuf);
2149     if (res == 0 && S_ISLNK (statbuf.st_mode))
2150       {
2151         g_set_error_literal (error, G_IO_ERROR,
2152                              G_IO_ERROR_NOT_SUPPORTED,
2153                              _("Cannot set permissions on symlinks"));
2154         return FALSE;
2155       }
2156     else if (res == 0)
2157       res = g_chmod (filename, val);
2158 #endif
2159   } else
2160 #endif
2161     res = g_chmod (filename, val);
2162
2163   if (res == -1)
2164     {
2165       int errsv = errno;
2166
2167       g_set_error (error, G_IO_ERROR,
2168                    g_io_error_from_errno (errsv),
2169                    _("Error setting permissions: %s"),
2170                    g_strerror (errsv));
2171       return FALSE;
2172     }
2173   return TRUE;
2174 }
2175
2176 #ifdef G_OS_UNIX
2177 static gboolean
2178 set_unix_uid_gid (char                       *filename,
2179                   const GFileAttributeValue  *uid_value,
2180                   const GFileAttributeValue  *gid_value,
2181                   GFileQueryInfoFlags         flags,
2182                   GError                    **error)
2183 {
2184   int res;
2185   guint32 val = 0;
2186   uid_t uid;
2187   gid_t gid;
2188
2189   if (uid_value)
2190     {
2191       if (!get_uint32 (uid_value, &val, error))
2192         return FALSE;
2193       uid = val;
2194     }
2195   else
2196     uid = -1;
2197
2198   if (gid_value)
2199     {
2200       if (!get_uint32 (gid_value, &val, error))
2201         return FALSE;
2202       gid = val;
2203     }
2204   else
2205     gid = -1;
2206
2207 #ifdef HAVE_LCHOWN
2208   if (flags & G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS)
2209     res = lchown (filename, uid, gid);
2210   else
2211 #endif
2212     res = chown (filename, uid, gid);
2213
2214   if (res == -1)
2215     {
2216       int errsv = errno;
2217
2218       g_set_error (error, G_IO_ERROR,
2219                    g_io_error_from_errno (errsv),
2220                    _("Error setting owner: %s"),
2221                    g_strerror (errsv));
2222           return FALSE;
2223     }
2224   return TRUE;
2225 }
2226 #endif
2227
2228 #ifdef HAVE_SYMLINK
2229 static gboolean
2230 set_symlink (char                       *filename,
2231              const GFileAttributeValue  *value,
2232              GError                    **error)
2233 {
2234   const char *val;
2235   struct stat statbuf;
2236
2237   if (!get_byte_string (value, &val, error))
2238     return FALSE;
2239
2240   if (val == NULL)
2241     {
2242       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2243                            _("symlink must be non-NULL"));
2244       return FALSE;
2245     }
2246
2247   if (g_lstat (filename, &statbuf))
2248     {
2249       int errsv = errno;
2250
2251       g_set_error (error, G_IO_ERROR,
2252                    g_io_error_from_errno (errsv),
2253                    _("Error setting symlink: %s"),
2254                    g_strerror (errsv));
2255       return FALSE;
2256     }
2257
2258   if (!S_ISLNK (statbuf.st_mode))
2259     {
2260       g_set_error_literal (error, G_IO_ERROR,
2261                            G_IO_ERROR_NOT_SYMBOLIC_LINK,
2262                            _("Error setting symlink: file is not a symlink"));
2263       return FALSE;
2264     }
2265
2266   if (g_unlink (filename))
2267     {
2268       int errsv = errno;
2269
2270       g_set_error (error, G_IO_ERROR,
2271                    g_io_error_from_errno (errsv),
2272                    _("Error setting symlink: %s"),
2273                    g_strerror (errsv));
2274       return FALSE;
2275     }
2276
2277   if (symlink (filename, val) != 0)
2278     {
2279       int errsv = errno;
2280
2281       g_set_error (error, G_IO_ERROR,
2282                    g_io_error_from_errno (errsv),
2283                    _("Error setting symlink: %s"),
2284                    g_strerror (errsv));
2285       return FALSE;
2286     }
2287
2288   return TRUE;
2289 }
2290 #endif
2291
2292 #ifdef HAVE_UTIMES
2293 static int
2294 lazy_stat (char        *filename,
2295            struct stat *statbuf,
2296            gboolean    *called_stat)
2297 {
2298   int res;
2299
2300   if (*called_stat)
2301     return 0;
2302
2303   res = g_stat (filename, statbuf);
2304
2305   if (res == 0)
2306     *called_stat = TRUE;
2307
2308   return res;
2309 }
2310
2311
2312 static gboolean
2313 set_mtime_atime (char                       *filename,
2314                  const GFileAttributeValue  *mtime_value,
2315                  const GFileAttributeValue  *mtime_usec_value,
2316                  const GFileAttributeValue  *atime_value,
2317                  const GFileAttributeValue  *atime_usec_value,
2318                  GError                    **error)
2319 {
2320   int res;
2321   guint64 val = 0;
2322   guint32 val_usec = 0;
2323   struct stat statbuf;
2324   gboolean got_stat = FALSE;
2325   struct timeval times[2] = { {0, 0}, {0, 0} };
2326
2327   /* ATIME */
2328   if (atime_value)
2329     {
2330       if (!get_uint64 (atime_value, &val, error))
2331         return FALSE;
2332       times[0].tv_sec = val;
2333     }
2334   else
2335     {
2336       if (lazy_stat (filename, &statbuf, &got_stat) == 0)
2337         {
2338           times[0].tv_sec = statbuf.st_mtime;
2339 #if defined (HAVE_STRUCT_STAT_ST_ATIMENSEC)
2340           times[0].tv_usec = statbuf.st_atimensec / 1000;
2341 #elif defined (HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC)
2342           times[0].tv_usec = statbuf.st_atim.tv_nsec / 1000;
2343 #endif
2344         }
2345     }
2346
2347   if (atime_usec_value)
2348     {
2349       if (!get_uint32 (atime_usec_value, &val_usec, error))
2350         return FALSE;
2351       times[0].tv_usec = val_usec;
2352     }
2353
2354   /* MTIME */
2355   if (mtime_value)
2356     {
2357       if (!get_uint64 (mtime_value, &val, error))
2358         return FALSE;
2359       times[1].tv_sec = val;
2360     }
2361   else
2362     {
2363       if (lazy_stat (filename, &statbuf, &got_stat) == 0)
2364         {
2365           times[1].tv_sec = statbuf.st_mtime;
2366 #if defined (HAVE_STRUCT_STAT_ST_MTIMENSEC)
2367           times[1].tv_usec = statbuf.st_mtimensec / 1000;
2368 #elif defined (HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
2369           times[1].tv_usec = statbuf.st_mtim.tv_nsec / 1000;
2370 #endif
2371         }
2372     }
2373
2374   if (mtime_usec_value)
2375     {
2376       if (!get_uint32 (mtime_usec_value, &val_usec, error))
2377         return FALSE;
2378       times[1].tv_usec = val_usec;
2379     }
2380
2381   res = utimes (filename, times);
2382   if (res == -1)
2383     {
2384       int errsv = errno;
2385
2386       g_set_error (error, G_IO_ERROR,
2387                    g_io_error_from_errno (errsv),
2388                    _("Error setting modification or access time: %s"),
2389                    g_strerror (errsv));
2390           return FALSE;
2391     }
2392   return TRUE;
2393 }
2394 #endif
2395
2396
2397 #ifdef HAVE_SELINUX
2398 static gboolean
2399 set_selinux_context (char                       *filename,
2400                  const GFileAttributeValue  *value,
2401                  GError                    **error)
2402 {
2403   const char *val;
2404
2405   if (!get_string (value, &val, error))
2406     return FALSE;
2407
2408   if (val == NULL)
2409   {
2410     g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2411                          _("SELinux context must be non-NULL"));
2412     return FALSE;
2413   }
2414
2415   if (is_selinux_enabled ()) {
2416         security_context_t val_s;
2417
2418         val_s = g_strdup (val);
2419
2420         if (setfilecon_raw (filename, val_s) < 0)
2421         {
2422             int errsv = errno;
2423
2424             g_set_error (error, G_IO_ERROR,
2425                          g_io_error_from_errno (errsv),
2426                         _("Error setting SELinux context: %s"),
2427                          g_strerror (errsv));
2428             return FALSE;
2429         }
2430         g_free (val_s);
2431   } else {
2432     g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
2433                          _("SELinux is not enabled on this system"));
2434     return FALSE;
2435   }
2436
2437   return TRUE;
2438 }
2439 #endif
2440
2441
2442 gboolean
2443 _g_local_file_info_set_attribute (char                 *filename,
2444                                   const char           *attribute,
2445                                   GFileAttributeType    type,
2446                                   gpointer              value_p,
2447                                   GFileQueryInfoFlags   flags,
2448                                   GCancellable         *cancellable,
2449                                   GError              **error)
2450 {
2451   GFileAttributeValue value = { 0 };
2452   GVfsClass *class;
2453   GVfs *vfs;
2454
2455   _g_file_attribute_value_set_from_pointer (&value, type, value_p, FALSE);
2456
2457   if (strcmp (attribute, G_FILE_ATTRIBUTE_UNIX_MODE) == 0)
2458     return set_unix_mode (filename, flags, &value, error);
2459
2460 #ifdef G_OS_UNIX
2461   else if (strcmp (attribute, G_FILE_ATTRIBUTE_UNIX_UID) == 0)
2462     return set_unix_uid_gid (filename, &value, NULL, flags, error);
2463   else if (strcmp (attribute, G_FILE_ATTRIBUTE_UNIX_GID) == 0)
2464     return set_unix_uid_gid (filename, NULL, &value, flags, error);
2465 #endif
2466
2467 #ifdef HAVE_SYMLINK
2468   else if (strcmp (attribute, G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET) == 0)
2469     return set_symlink (filename, &value, error);
2470 #endif
2471
2472 #ifdef HAVE_UTIMES
2473   else if (strcmp (attribute, G_FILE_ATTRIBUTE_TIME_MODIFIED) == 0)
2474     return set_mtime_atime (filename, &value, NULL, NULL, NULL, error);
2475   else if (strcmp (attribute, G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC) == 0)
2476     return set_mtime_atime (filename, NULL, &value, NULL, NULL, error);
2477   else if (strcmp (attribute, G_FILE_ATTRIBUTE_TIME_ACCESS) == 0)
2478     return set_mtime_atime (filename, NULL, NULL, &value, NULL, error);
2479   else if (strcmp (attribute, G_FILE_ATTRIBUTE_TIME_ACCESS_USEC) == 0)
2480     return set_mtime_atime (filename, NULL, NULL, NULL, &value, error);
2481 #endif
2482
2483 #ifdef HAVE_XATTR
2484   else if (g_str_has_prefix (attribute, "xattr::"))
2485     return set_xattr (filename, attribute, &value, error);
2486   else if (g_str_has_prefix (attribute, "xattr-sys::"))
2487     return set_xattr (filename, attribute, &value, error);
2488 #endif
2489
2490 #ifdef HAVE_SELINUX
2491   else if (strcmp (attribute, G_FILE_ATTRIBUTE_SELINUX_CONTEXT) == 0)
2492     return set_selinux_context (filename, &value, error);
2493 #endif
2494
2495   vfs = g_vfs_get_default ();
2496   class = G_VFS_GET_CLASS (vfs);
2497   if (class->local_file_set_attributes)
2498     {
2499       GFileInfo *info;
2500
2501       info = g_file_info_new ();
2502       g_file_info_set_attribute (info,
2503                                  attribute,
2504                                  type,
2505                                  value_p);
2506       if (!class->local_file_set_attributes (vfs, filename,
2507                                              info,
2508                                              flags, cancellable,
2509                                              error))
2510         {
2511           g_object_unref (info);
2512           return FALSE;
2513         }
2514
2515       if (g_file_info_get_attribute_status (info, attribute) == G_FILE_ATTRIBUTE_STATUS_SET)
2516         {
2517           g_object_unref (info);
2518           return TRUE;
2519         }
2520
2521       g_object_unref (info);
2522     }
2523
2524   g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
2525                _("Setting attribute %s not supported"), attribute);
2526   return FALSE;
2527 }
2528
2529 gboolean
2530 _g_local_file_info_set_attributes  (char                 *filename,
2531                                     GFileInfo            *info,
2532                                     GFileQueryInfoFlags   flags,
2533                                     GCancellable         *cancellable,
2534                                     GError              **error)
2535 {
2536   GFileAttributeValue *value;
2537 #ifdef G_OS_UNIX
2538   GFileAttributeValue *uid, *gid;
2539 #ifdef HAVE_UTIMES
2540   GFileAttributeValue *mtime, *mtime_usec, *atime, *atime_usec;
2541 #endif
2542   GFileAttributeStatus status;
2543 #endif
2544   gboolean res;
2545   GVfsClass *class;
2546   GVfs *vfs;
2547
2548   /* Handles setting multiple specified data in a single set, and takes care
2549      of ordering restrictions when setting attributes */
2550
2551   res = TRUE;
2552
2553   /* Set symlink first, since this recreates the file */
2554 #ifdef HAVE_SYMLINK
2555   value = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_STANDARD_SYMLINK_TARGET);
2556   if (value)
2557     {
2558       if (!set_symlink (filename, value, error))
2559         {
2560           value->status = G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING;
2561           res = FALSE;
2562           /* Don't set error multiple times */
2563           error = NULL;
2564         }
2565       else
2566         value->status = G_FILE_ATTRIBUTE_STATUS_SET;
2567
2568     }
2569 #endif
2570
2571 #ifdef G_OS_UNIX
2572   /* Group uid and gid setting into one call
2573    * Change ownership before permissions, since ownership changes can
2574      change permissions (e.g. setuid)
2575    */
2576   uid = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_UNIX_UID);
2577   gid = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_UNIX_GID);
2578
2579   if (uid || gid)
2580     {
2581       if (!set_unix_uid_gid (filename, uid, gid, flags, error))
2582         {
2583           status = G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING;
2584           res = FALSE;
2585           /* Don't set error multiple times */
2586           error = NULL;
2587         }
2588       else
2589         status = G_FILE_ATTRIBUTE_STATUS_SET;
2590       if (uid)
2591         uid->status = status;
2592       if (gid)
2593         gid->status = status;
2594     }
2595 #endif
2596
2597   value = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_UNIX_MODE);
2598   if (value)
2599     {
2600       if (!set_unix_mode (filename, flags, value, error))
2601         {
2602           value->status = G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING;
2603           res = FALSE;
2604           /* Don't set error multiple times */
2605           error = NULL;
2606         }
2607       else
2608         value->status = G_FILE_ATTRIBUTE_STATUS_SET;
2609
2610     }
2611
2612 #ifdef HAVE_UTIMES
2613   /* Group all time settings into one call
2614    * Change times as the last thing to avoid it changing due to metadata changes
2615    */
2616
2617   mtime = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_TIME_MODIFIED);
2618   mtime_usec = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC);
2619   atime = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_TIME_ACCESS);
2620   atime_usec = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_TIME_ACCESS_USEC);
2621
2622   if (mtime || mtime_usec || atime || atime_usec)
2623     {
2624       if (!set_mtime_atime (filename, mtime, mtime_usec, atime, atime_usec, error))
2625         {
2626           status = G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING;
2627           res = FALSE;
2628           /* Don't set error multiple times */
2629           error = NULL;
2630         }
2631       else
2632         status = G_FILE_ATTRIBUTE_STATUS_SET;
2633
2634       if (mtime)
2635         mtime->status = status;
2636       if (mtime_usec)
2637         mtime_usec->status = status;
2638       if (atime)
2639         atime->status = status;
2640       if (atime_usec)
2641         atime_usec->status = status;
2642     }
2643 #endif
2644
2645   /* xattrs are handled by default callback */
2646
2647
2648   /*  SELinux context */
2649 #ifdef HAVE_SELINUX
2650   if (is_selinux_enabled ()) {
2651     value = _g_file_info_get_attribute_value (info, G_FILE_ATTRIBUTE_SELINUX_CONTEXT);
2652     if (value)
2653     {
2654       if (!set_selinux_context (filename, value, error))
2655         {
2656           value->status = G_FILE_ATTRIBUTE_STATUS_ERROR_SETTING;
2657           res = FALSE;
2658           /* Don't set error multiple times */
2659           error = NULL;
2660         }
2661       else
2662         value->status = G_FILE_ATTRIBUTE_STATUS_SET;
2663     }
2664   }
2665 #endif
2666
2667   vfs = g_vfs_get_default ();
2668   class = G_VFS_GET_CLASS (vfs);
2669   if (class->local_file_set_attributes)
2670     {
2671       if (!class->local_file_set_attributes (vfs, filename,
2672                                              info,
2673                                              flags, cancellable,
2674                                              error))
2675         {
2676           res = FALSE;
2677           /* Don't set error multiple times */
2678           error = NULL;
2679         }
2680     }
2681
2682   return res;
2683 }