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, write to the 19 * Free Software Foundation, Inc., 59 Temple Place, Suite 330, 20 * Boston, MA 02111-1307, USA. 21 * 22 * Author: Alexander Larsson <alexl (at) redhat.com> 23 */ 24 25 #include "config.h" 26 #include <sys/types.h> 27 #include <stdlib.h> 28 #include <string.h> 29 #include <stdio.h> 30 #include "gcontenttypeprivate.h" 31 #include "gthemedicon.h" 32 #include "gicon.h" 33 #include "gfile.h" 34 #include "gfileenumerator.h" 35 #include "gfileinfo.h" 36 #include "glibintl.h" 37 38 #include "gioalias.h" 39 40 /** 41 * SECTION:gcontenttype 42 * @short_description: Platform-specific content typing 43 * @include: gio/gio.h 44 * 45 * A content type is a platform specific string that defines the type 46 * of a file. On unix it is a mime type, on win32 it is an extension string 47 * like ".doc", ".txt" or a percieved string like "audio". Such strings 48 * can be looked up in the registry at HKEY_CLASSES_ROOT. 49 **/ 50 51 #ifdef G_OS_WIN32 52 53 #include <windows.h> 54 55 static char * 56 get_registry_classes_key (const char *subdir, 57 const wchar_t *key_name) 58 { 59 wchar_t *wc_key; 60 HKEY reg_key = NULL; 61 DWORD key_type; 62 DWORD nbytes; 63 char *value_utf8; 64 65 value_utf8 = NULL; 66 67 nbytes = 0; 68 wc_key = g_utf8_to_utf16 (subdir, -1, NULL, NULL, NULL); 69 if (RegOpenKeyExW (HKEY_CLASSES_ROOT, wc_key, 0, 70 KEY_QUERY_VALUE, ®_key) == ERROR_SUCCESS && 71 RegQueryValueExW (reg_key, key_name, 0, 72 &key_type, NULL, &nbytes) == ERROR_SUCCESS && 73 (key_type == REG_SZ || key_type == REG_EXPAND_SZ)) 74 { 75 wchar_t *wc_temp = g_new (wchar_t, (nbytes+1)/2 + 1); 76 RegQueryValueExW (reg_key, key_name, 0, 77 &key_type, (LPBYTE) wc_temp, &nbytes); 78 wc_temp[nbytes/2] = '\0'; 79 if (key_type == REG_EXPAND_SZ) 80 { 81 wchar_t dummy[1]; 82 int len = ExpandEnvironmentStringsW (wc_temp, dummy, 1); 83 if (len > 0) 84 { 85 wchar_t *wc_temp_expanded = g_new (wchar_t, len); 86 if (ExpandEnvironmentStringsW (wc_temp, wc_temp_expanded, len) == len) 87 value_utf8 = g_utf16_to_utf8 (wc_temp_expanded, -1, NULL, NULL, NULL); 88 g_free (wc_temp_expanded); 89 } 90 } 91 else 92 { 93 value_utf8 = g_utf16_to_utf8 (wc_temp, -1, NULL, NULL, NULL); 94 } 95 g_free (wc_temp); 96 97 } 98 g_free (wc_key); 99 100 if (reg_key != NULL) 101 RegCloseKey (reg_key); 102 103 return value_utf8; 104 } 105 106 gboolean 107 g_content_type_equals (const char *type1, 108 const char *type2) 109 { 110 char *progid1, *progid2; 111 gboolean res; 112 113 g_return_val_if_fail (type1 != NULL, FALSE); 114 g_return_val_if_fail (type2 != NULL, FALSE); 115 116 if (g_ascii_strcasecmp (type1, type2) == 0) 117 return TRUE; 118 119 res = FALSE; 120 progid1 = get_registry_classes_key (type1, NULL); 121 progid2 = get_registry_classes_key (type2, NULL); 122 if (progid1 != NULL && progid2 != NULL && 123 strcmp (progid1, progid2) == 0) 124 res = TRUE; 125 g_free (progid1); 126 g_free (progid2); 127 128 return res; 129 } 130 131 gboolean 132 g_content_type_is_a (const char *type, 133 const char *supertype) 134 { 135 gboolean res; 136 char *value_utf8; 137 138 g_return_val_if_fail (type != NULL, FALSE); 139 g_return_val_if_fail (supertype != NULL, FALSE); 140 141 if (g_content_type_equals (type, supertype)) 142 return TRUE; 143 144 res = FALSE; 145 value_utf8 = get_registry_classes_key (type, L"PerceivedType"); 146 if (value_utf8 && strcmp (value_utf8, supertype) == 0) 147 res = TRUE; 148 g_free (value_utf8); 149 150 return res; 151 } 152 153 gboolean 154 g_content_type_is_unknown (const char *type) 155 { 156 g_return_val_if_fail (type != NULL, FALSE); 157 158 return strcmp ("*", type) == 0; 159 } 160 161 char * 162 g_content_type_get_description (const char *type) 163 { 164 char *progid; 165 char *description; 166 167 g_return_val_if_fail (type != NULL, NULL); 168 169 progid = get_registry_classes_key (type, NULL); 170 if (progid) 171 { 172 description = get_registry_classes_key (progid, NULL); 173 g_free (progid); 174 175 if (description) 176 return description; 177 } 178 179 if (g_content_type_is_unknown (type)) 180 return g_strdup (_("Unknown type")); 181 return g_strdup_printf (_("%s filetype"), type); 182 } 183 184 char * 185 g_content_type_get_mime_type (const char *type) 186 { 187 char *mime; 188 189 g_return_val_if_fail (type != NULL, NULL); 190 191 mime = get_registry_classes_key (type, L"Content Type"); 192 if (mime) 193 return mime; 194 else if (g_content_type_is_unknown (type)) 195 return g_strdup ("application/octet-stream"); 196 else if (*type == '.') 197 return g_strdup_printf ("application/x-ext-%s", type+1); 198 /* TODO: Map "image" to "image/ *", etc? */ 199 200 return g_strdup ("application/octet-stream"); 201 } 202 203 G_LOCK_DEFINE_STATIC (_type_icons); 204 static GHashTable *_type_icons = NULL; 205 206 GIcon * 207 g_content_type_get_icon (const char *type) 208 { 209 GIcon *themed_icon; 210 char *name = NULL; 211 212 g_return_val_if_fail (type != NULL, NULL); 213 214 /* In the Registry icons are the default value of 215 HKEY_CLASSES_ROOT\<progid>\DefaultIcon with typical values like: 216 <type>: <value> 217 REG_EXPAND_SZ: %SystemRoot%\System32\Wscript.exe,3 218 REG_SZ: shimgvw.dll,3 219 */ 220 G_LOCK (_type_icons); 221 if (!_type_icons) 222 _type_icons = g_hash_table_new (g_str_hash, g_str_equal); 223 name = g_hash_table_lookup (_type_icons, type); 224 if (!name && type[0] == '.') 225 { 226 /* double lookup by extension */ 227 gchar *key = get_registry_classes_key (type, NULL); 228 if (!key) 229 key = g_strconcat (type+1, "file\\DefaultIcon", NULL); 230 else 231 { 232 gchar *key2 = g_strconcat (key, "\\DefaultIcon", NULL); 233 g_free (key); 234 key = key2; 235 } 236 name = get_registry_classes_key (key, NULL); 237 if (name && strcmp (name, "%1") == 0) 238 { 239 g_free (name); 240 name = NULL; 241 } 242 if (name) 243 g_hash_table_insert (_type_icons, g_strdup (type), g_strdup (name)); 244 g_free (key); 245 } 246 247 /* icon-name similar to how it was with gtk-2-12 */ 248 if (name) 249 { 250 themed_icon = g_themed_icon_new (name); 251 } 252 else 253 { 254 /* if not found an icon fall back to gtk-builtins */ 255 name = strcmp (type, "inode/directory") == 0 ? "gtk-directory" : 256 g_content_type_can_be_executable (type) ? "gtk-execute" : "gtk-file"; 257 g_hash_table_insert (_type_icons, g_strdup (type), g_strdup (name)); 258 themed_icon = g_themed_icon_new_with_default_fallbacks (name); 259 } 260 G_UNLOCK (_type_icons); 261 262 return G_ICON (themed_icon); 263 } 264 265 gboolean 266 g_content_type_can_be_executable (const char *type) 267 { 268 g_return_val_if_fail (type != NULL, FALSE); 269 270 if (strcmp (type, ".exe") == 0 || 271 strcmp (type, ".com") == 0 || 272 strcmp (type, ".bat") == 0) 273 return TRUE; 274 275 /* TODO: Also look at PATHEXT, which lists the extensions for 276 * "scripts" in addition to those for true binary executables. 277 * 278 * (PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH for me 279 * right now, for instance). And in a sense, all associated file 280 * types are "executable" on Windows... You can just type foo.jpg as 281 * a command name in cmd.exe, and it will run the application 282 * associated with .jpg. Hard to say what this API actually means 283 * with "executable". 284 */ 285 286 return FALSE; 287 } 288 289 static gboolean 290 looks_like_text (const guchar *data, 291 gsize data_size) 292 { 293 gsize i; 294 guchar c; 295 for (i = 0; i < data_size; i++) 296 { 297 c = data[i]; 298 if (g_ascii_iscntrl (c) && !g_ascii_isspace (c)) 299 return FALSE; 300 } 301 return TRUE; 302 } 303 304 char * 305 g_content_type_from_mime_type (const char *mime_type) 306 { 307 char *key, *content_type; 308 309 g_return_val_if_fail (mime_type != NULL, NULL); 310 311 key = g_strconcat ("MIME\\DataBase\\Content Type\\", mime_type, NULL); 312 content_type = get_registry_classes_key (key, L"Extension"); 313 g_free (key); 314 315 return content_type; 316 } 317 318 char * 319 g_content_type_guess (const char *filename, 320 const guchar *data, 321 gsize data_size, 322 gboolean *result_uncertain) 323 { 324 char *basename; 325 char *type; 326 char *dot; 327 328 type = NULL; 329 330 if (filename) 331 { 332 basename = g_path_get_basename (filename); 333 dot = strrchr (basename, '.'); 334 if (dot) 335 type = g_strdup (dot); 336 g_free (basename); 337 } 338 339 if (type) 340 return type; 341 342 if (data && looks_like_text (data, data_size)) 343 return g_strdup (".txt"); 344 345 return g_strdup ("*"); 346 } 347 348 GList * 349 g_content_types_get_registered (void) 350 { 351 DWORD index; 352 wchar_t keyname[256]; 353 DWORD key_len; 354 char *key_utf8; 355 GList *types; 356 357 types = NULL; 358 index = 0; 359 key_len = 256; 360 while (RegEnumKeyExW(HKEY_CLASSES_ROOT, 361 index, 362 keyname, 363 &key_len, 364 NULL, 365 NULL, 366 NULL, 367 NULL) == ERROR_SUCCESS) 368 { 369 key_utf8 = g_utf16_to_utf8 (keyname, -1, NULL, NULL, NULL); 370 if (key_utf8) 371 { 372 if (*key_utf8 == '.') 373 types = g_list_prepend (types, key_utf8); 374 else 375 g_free (key_utf8); 376 } 377 index++; 378 key_len = 256; 379 } 380 381 return g_list_reverse (types); 382 } 383 384 char ** 385 g_content_type_guess_for_tree (GFile *root) 386 { 387 /* FIXME: implement */ 388 return NULL; 389 } 390 391 #else /* !G_OS_WIN32 - Unix specific version */ 392 393 #include <dirent.h> 394 395 #define XDG_PREFIX _gio_xdg 396 #include "xdgmime/xdgmime.h" 397 398 /* We lock this mutex whenever we modify global state in this module. */ 399 G_LOCK_DEFINE_STATIC (gio_xdgmime); 400 401 gsize 402 _g_unix_content_type_get_sniff_len (void) 403 { 404 gsize size; 405 406 G_LOCK (gio_xdgmime); 407 size = xdg_mime_get_max_buffer_extents (); 408 G_UNLOCK (gio_xdgmime); 409 410 return size; 411 } 412 413 char * 414 _g_unix_content_type_unalias (const char *type) 415 { 416 char *res; 417 418 G_LOCK (gio_xdgmime); 419 res = g_strdup (xdg_mime_unalias_mime_type (type)); 420 G_UNLOCK (gio_xdgmime); 421 422 return res; 423 } 424 425 char ** 426 _g_unix_content_type_get_parents (const char *type) 427 { 428 const char *umime; 429 char **parents; 430 GPtrArray *array; 431 int i; 432 433 array = g_ptr_array_new (); 434 435 G_LOCK (gio_xdgmime); 436 437 umime = xdg_mime_unalias_mime_type (type); 438 439 g_ptr_array_add (array, g_strdup (umime)); 440 441 parents = xdg_mime_list_mime_parents (umime); 442 for (i = 0; parents && parents[i] != NULL; i++) 443 g_ptr_array_add (array, g_strdup (parents[i])); 444 445 free (parents); 446 447 G_UNLOCK (gio_xdgmime); 448 449 g_ptr_array_add (array, NULL); 450 451 return (char **)g_ptr_array_free (array, FALSE); 452 } 453 454 /** 455 * g_content_type_equals: 456 * @type1: a content type string. 457 * @type2: a content type string. 458 * 459 * Compares two content types for equality. 460 * 461 * Returns: %TRUE if the two strings are identical or equivalent, 462 * %FALSE otherwise. 463 **/ 464 gboolean 465 g_content_type_equals (const char *type1, 466 const char *type2) 467 { 468 gboolean res; 469 470 g_return_val_if_fail (type1 != NULL, FALSE); 471 g_return_val_if_fail (type2 != NULL, FALSE); 472 473 G_LOCK (gio_xdgmime); 474 res = xdg_mime_mime_type_equal (type1, type2); 475 G_UNLOCK (gio_xdgmime); 476 477 return res; 478 } 479 480 /** 481 * g_content_type_is_a: 482 * @type: a content type string. 483 * @supertype: a string. 484 * 485 * Determines if @type is a subset of @supertype. 486 * 487 * Returns: %TRUE if @type is a kind of @supertype, 488 * %FALSE otherwise. 489 **/ 490 gboolean 491 g_content_type_is_a (const char *type, 492 const char *supertype) 493 { 494 gboolean res; 495 496 g_return_val_if_fail (type != NULL, FALSE); 497 g_return_val_if_fail (supertype != NULL, FALSE); 498 499 G_LOCK (gio_xdgmime); 500 res = xdg_mime_mime_type_subclass (type, supertype); 501 G_UNLOCK (gio_xdgmime); 502 503 return res; 504 } 505 506 /** 507 * g_content_type_is_unknown: 508 * @type: a content type string. 509 * 510 * Checks if the content type is the generic "unknown" type. 511 * On unix this is the "application/octet-stream" mimetype, 512 * while on win32 it is "*". 513 * 514 * Returns: %TRUE if the type is the unknown type. 515 **/ 516 gboolean 517 g_content_type_is_unknown (const char *type) 518 { 519 g_return_val_if_fail (type != NULL, FALSE); 520 521 return strcmp (XDG_MIME_TYPE_UNKNOWN, type) == 0; 522 } 523 524 525 typedef enum { 526 MIME_TAG_TYPE_OTHER, 527 MIME_TAG_TYPE_COMMENT 528 } MimeTagType; 529 530 typedef struct { 531 int current_type; 532 int current_lang_level; 533 int comment_lang_level; 534 char *comment; 535 } MimeParser; 536 537 538 static int 539 language_level (const char *lang) 540 { 541 const char * const *lang_list; 542 int i; 543 544 /* The returned list is sorted from most desirable to least 545 desirable and always contains the default locale "C". */ 546 lang_list = g_get_language_names (); 547 548 for (i = 0; lang_list[i]; i++) 549 if (strcmp (lang_list[i], lang) == 0) 550 return 1000-i; 551 552 return 0; 553 } 554 555 static void 556 mime_info_start_element (GMarkupParseContext *context, 557 const gchar *element_name, 558 const gchar **attribute_names, 559 const gchar **attribute_values, 560 gpointer user_data, 561 GError **error) 562 { 563 int i; 564 const char *lang; 565 MimeParser *parser = user_data; 566 567 if (strcmp (element_name, "comment") == 0) 568 { 569 lang = "C"; 570 for (i = 0; attribute_names[i]; i++) 571 if (strcmp (attribute_names[i], "xml:lang") == 0) 572 { 573 lang = attribute_values[i]; 574 break; 575 } 576 577 parser->current_lang_level = language_level (lang); 578 parser->current_type = MIME_TAG_TYPE_COMMENT; 579 } 580 else 581 parser->current_type = MIME_TAG_TYPE_OTHER; 582 583 } 584 585 static void 586 mime_info_end_element (GMarkupParseContext *context, 587 const gchar *element_name, 588 gpointer user_data, 589 GError **error) 590 { 591 MimeParser *parser = user_data; 592 593 parser->current_type = MIME_TAG_TYPE_OTHER; 594 } 595 596 static void 597 mime_info_text (GMarkupParseContext *context, 598 const gchar *text, 599 gsize text_len, 600 gpointer user_data, 601 GError **error) 602 { 603 MimeParser *parser = user_data; 604 605 if (parser->current_type == MIME_TAG_TYPE_COMMENT && 606 parser->current_lang_level > parser->comment_lang_level) 607 { 608 g_free (parser->comment); 609 parser->comment = g_strndup (text, text_len); 610 parser->comment_lang_level = parser->current_lang_level; 611 } 612 } 613 614 static char * 615 load_comment_for_mime_helper (const char *dir, 616 const char *basename) 617 { 618 GMarkupParseContext *context; 619 char *filename, *data; 620 gsize len; 621 gboolean res; 622 MimeParser parse_data = {0}; 623 GMarkupParser parser = { 624 mime_info_start_element, 625 mime_info_end_element, 626 mime_info_text 627 }; 628 629 filename = g_build_filename (dir, "mime", basename, NULL); 630 631 res = g_file_get_contents (filename, &data, &len, NULL); 632 g_free (filename); 633 if (!res) 634 return NULL; 635 636 context = g_markup_parse_context_new (&parser, 0, &parse_data, NULL); 637 res = g_markup_parse_context_parse (context, data, len, NULL); 638 g_free (data); 639 g_markup_parse_context_free (context); 640 641 if (!res) 642 return NULL; 643 644 return parse_data.comment; 645 } 646 647 648 static char * 649 load_comment_for_mime (const char *mimetype) 650 { 651 const char * const* dirs; 652 char *basename; 653 char *comment; 654 int i; 655 656 basename = g_strdup_printf ("%s.xml", mimetype); 657 658 comment = load_comment_for_mime_helper (g_get_user_data_dir (), basename); 659 if (comment) 660 { 661 g_free (basename); 662 return comment; 663 } 664 665 dirs = g_get_system_data_dirs (); 666 667 for (i = 0; dirs[i] != NULL; i++) 668 { 669 comment = load_comment_for_mime_helper (dirs[i], basename); 670 if (comment) 671 { 672 g_free (basename); 673 return comment; 674 } 675 } 676 g_free (basename); 677 678 return g_strdup_printf (_("%s type"), mimetype); 679 } 680 681 /** 682 * g_content_type_get_description: 683 * @type: a content type string. 684 * 685 * Gets the human readable description of the content type. 686 * 687 * Returns: a short description of the content type @type. 688 **/ 689 char * 690 g_content_type_get_description (const char *type) 691 { 692 static GHashTable *type_comment_cache = NULL; 693 char *comment; 694 695 g_return_val_if_fail (type != NULL, NULL); 696 697 G_LOCK (gio_xdgmime); 698 type = xdg_mime_unalias_mime_type (type); 699 700 if (type_comment_cache == NULL) 701 type_comment_cache = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free); 702 703 comment = g_hash_table_lookup (type_comment_cache, type); 704 comment = g_strdup (comment); 705 G_UNLOCK (gio_xdgmime); 706 707 if (comment != NULL) 708 return comment; 709 710 comment = load_comment_for_mime (type); 711 712 G_LOCK (gio_xdgmime); 713 g_hash_table_insert (type_comment_cache, 714 g_strdup (type), 715 g_strdup (comment)); 716 G_UNLOCK (gio_xdgmime); 717 718 return comment; 719 } 720 721 /** 722 * g_content_type_get_mime_type: 723 * @type: a content type string. 724 * 725 * Gets the mime-type for the content type. If one is registered 726 * 727 * Returns: the registered mime-type for the given @type, or NULL if unknown. 728 **/ 729 char * 730 g_content_type_get_mime_type (const char *type) 731 { 732 g_return_val_if_fail (type != NULL, NULL); 733 734 return g_strdup (type); 735 } 736 737 /** 738 * g_content_type_get_icon: 739 * @type: a content type string. 740 * 741 * Gets the icon for a content type. 742 * 743 * Returns: #GIcon corresponding to the content type. 744 **/ 745 GIcon * 746 g_content_type_get_icon (const char *type) 747 { 748 char *mimetype_icon, *generic_mimetype_icon, *q; 749 char *xdg_mimetype_icon, *legacy_mimetype_icon; 750 char *xdg_mimetype_generic_icon; 751 char *icon_names[4]; 752 int n = 0; 753 const char *p; 754 GIcon *themed_icon; 755 756 g_return_val_if_fail (type != NULL, NULL); 757 758 G_LOCK (gio_xdgmime); 759 xdg_mimetype_icon = g_strdup (xdg_mime_get_icon (type)); 760 xdg_mimetype_generic_icon = g_strdup (xdg_mime_get_generic_icon (type)); 761 G_UNLOCK (gio_xdgmime); 762 763 mimetype_icon = g_strdup (type); 764 765 while ((q = strchr (mimetype_icon, '/')) != NULL) 766 *q = '-'; 767 768 p = strchr (type, '/'); 769 if (p == NULL) 770 p = type + strlen (type); 771 772 /* Not all icons have migrated to the new icon theme spec, look for old names too */ 773 legacy_mimetype_icon = g_strconcat ("gnome-mime-", mimetype_icon, NULL); 774 775 generic_mimetype_icon = g_malloc (p - type + strlen ("-x-generic") + 1); 776 memcpy (generic_mimetype_icon, type, p - type); 777 memcpy (generic_mimetype_icon + (p - type), "-x-generic", strlen ("-x-generic")); 778 generic_mimetype_icon[(p - type) + strlen ("-x-generic")] = 0; 779 780 if (xdg_mimetype_icon) 781 icon_names[n++] = xdg_mimetype_icon; 782 783 icon_names[n++] = mimetype_icon; 784 icon_names[n++] = legacy_mimetype_icon; 785 786 if (xdg_mimetype_generic_icon) 787 icon_names[n++] = xdg_mimetype_generic_icon; 788 789 icon_names[n++] = generic_mimetype_icon; 790 791 themed_icon = g_themed_icon_new_from_names (icon_names, n); 792 793 g_free (xdg_mimetype_icon); 794 g_free (xdg_mimetype_generic_icon); 795 g_free (mimetype_icon); 796 g_free (legacy_mimetype_icon); 797 g_free (generic_mimetype_icon); 798 799 return themed_icon; 800 } 801 802 /** 803 * g_content_type_can_be_executable: 804 * @type: a content type string. 805 * 806 * Checks if a content type can be executable. Note that for instance 807 * things like text files can be executables (i.e. scripts and batch files). 808 * 809 * Returns: %TRUE if the file type corresponds to a type that 810 * can be executable, %FALSE otherwise. 811 **/ 812 gboolean 813 g_content_type_can_be_executable (const char *type) 814 { 815 g_return_val_if_fail (type != NULL, FALSE); 816 817 if (g_content_type_is_a (type, "application/x-executable") || 818 g_content_type_is_a (type, "text/plain")) 819 return TRUE; 820 821 return FALSE; 822 } 823 824 static gboolean 825 looks_like_text (const guchar *data, gsize data_size) 826 { 827 gsize i; 828 char c; 829 830 for (i = 0; i < data_size; i++) 831 { 832 c = data[i]; 833 834 if (g_ascii_iscntrl (c) && 835 !g_ascii_isspace (c)) 836 return FALSE; 837 } 838 return TRUE; 839 } 840 841 /** 842 * g_content_type_from_mime_type: 843 * @mime_type: a mime type string. 844 * 845 * Tries to find a content type based on the mime type name. 846 * 847 * Returns: Newly allocated string with content type or NULL when does not know. 848 * 849 * Since: 2.18 850 **/ 851 char * 852 g_content_type_from_mime_type (const char *mime_type) 853 { 854 char *umime; 855 856 g_return_val_if_fail (mime_type != NULL, NULL); 857 858 G_LOCK (gio_xdgmime); 859 /* mime type and content type are same on unixes */ 860 umime = g_strdup (xdg_mime_unalias_mime_type (mime_type)); 861 G_UNLOCK (gio_xdgmime); 862 863 return umime; 864 } 865 866 /** 867 * g_content_type_guess: 868 * @filename: a string, or %NULL 869 * @data: a stream of data, or %NULL 870 * @data_size: the size of @data 871 * @result_uncertain: a flag indicating the certainty of the result 872 * 873 * Guesses the content type based on example data. If the function is 874 * uncertain, @result_uncertain will be set to %TRUE. Either @filename 875 * or @data may be %NULL, in which case the guess will be based solely 876 * on the other argument. 877 * 878 * Returns: a string indicating a guessed content type for the 879 * given data. 880 **/ 881 char * 882 g_content_type_guess (const char *filename, 883 const guchar *data, 884 gsize data_size, 885 gboolean *result_uncertain) 886 { 887 char *basename; 888 const char *name_mimetypes[10], *sniffed_mimetype; 889 char *mimetype; 890 int i; 891 int n_name_mimetypes; 892 int sniffed_prio; 893 894 sniffed_prio = 0; 895 n_name_mimetypes = 0; 896 sniffed_mimetype = XDG_MIME_TYPE_UNKNOWN; 897 898 if (result_uncertain) 899 *result_uncertain = FALSE; 900 901 G_LOCK (gio_xdgmime); 902 903 if (filename) 904 { 905 i = strlen (filename); 906 if (filename[i - 1] == '/') 907 { 908 name_mimetypes[0] = "inode/directory"; 909 name_mimetypes[1] = NULL; 910 n_name_mimetypes = 1; 911 if (result_uncertain) 912 *result_uncertain = TRUE; 913 } 914 else 915 { 916 basename = g_path_get_basename (filename); 917 n_name_mimetypes = xdg_mime_get_mime_types_from_file_name (basename, name_mimetypes, 10); 918 g_free (basename); 919 } 920 } 921 922 /* Got an extension match, and no conflicts. This is it. */ 923 if (n_name_mimetypes == 1) 924 { 925 G_UNLOCK (gio_xdgmime); 926 return g_strdup (name_mimetypes[0]); 927 } 928 929 if (data) 930 { 931 sniffed_mimetype = xdg_mime_get_mime_type_for_data (data, data_size, &sniffed_prio); 932 if (sniffed_mimetype == XDG_MIME_TYPE_UNKNOWN && 933 data && 934 looks_like_text (data, data_size)) 935 sniffed_mimetype = "text/plain"; 936 937 /* For security reasons we don't ever want to sniff desktop files 938 * where we know the filename and it doesn't have a .desktop extension. 939 * This is because desktop files allow executing any application and 940 * we don't want to make it possible to hide them looking like something 941 * else. 942 */ 943 if (filename != NULL && 944 strcmp (sniffed_mimetype, "application/x-desktop") == 0) 945 sniffed_mimetype = "text/plain"; 946 } 947 948 if (n_name_mimetypes == 0) 949 { 950 if (sniffed_mimetype == XDG_MIME_TYPE_UNKNOWN && 951 result_uncertain) 952 *result_uncertain = TRUE; 953 954 mimetype = g_strdup (sniffed_mimetype); 955 } 956 else 957 { 958 mimetype = NULL; 959 if (sniffed_mimetype != XDG_MIME_TYPE_UNKNOWN) 960 { 961 if (sniffed_prio >= 80) /* High priority sniffing match, use that */ 962 mimetype = g_strdup (sniffed_mimetype); 963 else 964 { 965 /* There are conflicts between the name matches and we have a sniffed 966 type, use that as a tie breaker. */ 967 968 for (i = 0; i < n_name_mimetypes; i++) 969 { 970 if ( xdg_mime_mime_type_subclass (name_mimetypes[i], sniffed_mimetype)) 971 { 972 /* This nametype match is derived from (or the same as) the sniffed type). 973 This is probably it. */ 974 mimetype = g_strdup (name_mimetypes[i]); 975 break; 976 } 977 } 978 } 979 } 980 981 if (mimetype == NULL) 982 { 983 /* Conflicts, and sniffed type was no help or not there. Guess on the first one */ 984 mimetype = g_strdup (name_mimetypes[0]); 985 if (result_uncertain) 986 *result_uncertain = TRUE; 987 } 988 } 989 990 G_UNLOCK (gio_xdgmime); 991 992 return mimetype; 993 } 994 995 static void 996 enumerate_mimetypes_subdir (const char *dir, 997 const char *prefix, 998 GHashTable *mimetypes) 999 { 1000 DIR *d; 1001 struct dirent *ent; 1002 char *mimetype; 1003 1004 d = opendir (dir); 1005 if (d) 1006 { 1007 while ((ent = readdir (d)) != NULL) 1008 { 1009 if (g_str_has_suffix (ent->d_name, ".xml")) 1010 { 1011 mimetype = g_strdup_printf ("%s/%.*s", prefix, (int) strlen (ent->d_name) - 4, ent->d_name); 1012 g_hash_table_replace (mimetypes, mimetype, NULL); 1013 } 1014 } 1015 closedir (d); 1016 } 1017 } 1018 1019 static void 1020 enumerate_mimetypes_dir (const char *dir, 1021 GHashTable *mimetypes) 1022 { 1023 DIR *d; 1024 struct dirent *ent; 1025 char *mimedir; 1026 char *name; 1027 1028 mimedir = g_build_filename (dir, "mime", NULL); 1029 1030 d = opendir (mimedir); 1031 if (d) 1032 { 1033 while ((ent = readdir (d)) != NULL) 1034 { 1035 if (strcmp (ent->d_name, "packages") != 0) 1036 { 1037 name = g_build_filename (mimedir, ent->d_name, NULL); 1038 if (g_file_test (name, G_FILE_TEST_IS_DIR)) 1039 enumerate_mimetypes_subdir (name, ent->d_name, mimetypes); 1040 g_free (name); 1041 } 1042 } 1043 closedir (d); 1044 } 1045 1046 g_free (mimedir); 1047 } 1048 1049 /** 1050 * g_content_types_get_registered: 1051 * 1052 * Gets a list of strings containing all the registered content types 1053 * known to the system. The list and its data should be freed using 1054 * @g_list_foreach(list, g_free, NULL) and @g_list_free(list) 1055 * Returns: #GList of the registered content types. 1056 **/ 1057 GList * 1058 g_content_types_get_registered (void) 1059 { 1060 const char * const* dirs; 1061 GHashTable *mimetypes; 1062 GHashTableIter iter; 1063 gpointer key; 1064 int i; 1065 GList *l; 1066 1067 mimetypes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); 1068 1069 enumerate_mimetypes_dir (g_get_user_data_dir (), mimetypes); 1070 dirs = g_get_system_data_dirs (); 1071 1072 for (i = 0; dirs[i] != NULL; i++) 1073 enumerate_mimetypes_dir (dirs[i], mimetypes); 1074 1075 l = NULL; 1076 g_hash_table_iter_init (&iter, mimetypes); 1077 while (g_hash_table_iter_next (&iter, &key, NULL)) 1078 { 1079 l = g_list_prepend (l, key); 1080 g_hash_table_iter_steal (&iter); 1081 } 1082 1083 g_hash_table_destroy (mimetypes); 1084 1085 return l; 1086 } 1087 1088 1089 /* tree magic data */ 1090 static GList *tree_matches = NULL; 1091 static gboolean need_reload = FALSE; 1092 1093 G_LOCK_DEFINE_STATIC (gio_treemagic); 1094 1095 typedef struct 1096 { 1097 gchar *path; 1098 GFileType type; 1099 guint match_case : 1; 1100 guint executable : 1; 1101 guint non_empty : 1; 1102 guint on_disc : 1; 1103 gchar *mimetype; 1104 GList *matches; 1105 } TreeMatchlet; 1106 1107 typedef struct 1108 { 1109 gchar *contenttype; 1110 gint priority; 1111 GList *matches; 1112 } TreeMatch; 1113 1114 1115 static void 1116 tree_matchlet_free (TreeMatchlet *matchlet) 1117 { 1118 g_list_foreach (matchlet->matches, (GFunc)tree_matchlet_free, NULL); 1119 g_list_free (matchlet->matches); 1120 g_free (matchlet->path); 1121 g_free (matchlet->mimetype); 1122 g_slice_free (TreeMatchlet, matchlet); 1123 } 1124 1125 static void 1126 tree_match_free (TreeMatch *match) 1127 { 1128 g_list_foreach (match->matches, (GFunc)tree_matchlet_free, NULL); 1129 g_list_free (match->matches); 1130 g_free (match->contenttype); 1131 g_slice_free (TreeMatch, match); 1132 } 1133 1134 static TreeMatch * 1135 parse_header (gchar *line) 1136 { 1137 gint len; 1138 gchar *s; 1139 TreeMatch *match; 1140 1141 len = strlen (line); 1142 1143 if (line[0] != '[' || line[len - 1] != ']') 1144 return NULL; 1145 1146 line[len - 1] = 0; 1147 s = strchr (line, ':'); 1148 1149 match = g_slice_new0 (TreeMatch); 1150 match->priority = atoi (line + 1); 1151 match->contenttype = g_strdup (s + 1); 1152 1153 return match; 1154 } 1155 1156 static TreeMatchlet * 1157 parse_match_line (gchar *line, 1158 gint *depth) 1159 { 1160 gchar *s, *p; 1161 TreeMatchlet *matchlet; 1162 gchar **parts; 1163 gint i; 1164 1165 matchlet = g_slice_new0 (TreeMatchlet); 1166 1167 if (line[0] == '>') 1168 { 1169 *depth = 0; 1170 s = line; 1171 } 1172 else 1173 { 1174 *depth = atoi (line); 1175 s = strchr (line, '>'); 1176 } 1177 s += 2; 1178 p = strchr (s, '"'); 1179 *p = 0; 1180 1181 matchlet->path = g_strdup (s); 1182 s = p + 1; 1183 parts = g_strsplit (s, ",", 0); 1184 if (strcmp (parts[0], "=file") == 0) 1185 matchlet->type = G_FILE_TYPE_REGULAR; 1186 else if (strcmp (parts[0], "=directory") == 0) 1187 matchlet->type = G_FILE_TYPE_DIRECTORY; 1188 else if (strcmp (parts[0], "=link") == 0) 1189 matchlet->type = G_FILE_TYPE_SYMBOLIC_LINK; 1190 else 1191 matchlet->type = G_FILE_TYPE_UNKNOWN; 1192 for (i = 1; parts[i]; i++) 1193 { 1194 if (strcmp (parts[i], "executable") == 0) 1195 matchlet->executable = 1; 1196 else if (strcmp (parts[i], "match-case") == 0) 1197 matchlet->match_case = 1; 1198 else if (strcmp (parts[i], "non-empty") == 0) 1199 matchlet->non_empty = 1; 1200 else if (strcmp (parts[i], "on-disc") == 0) 1201 matchlet->on_disc = 1; 1202 else 1203 matchlet->mimetype = g_strdup (parts[i]); 1204 } 1205 1206 g_strfreev (parts); 1207 1208 return matchlet; 1209 } 1210 1211 static gint 1212 cmp_match (gconstpointer a, gconstpointer b) 1213 { 1214 const TreeMatch *aa = (const TreeMatch *)a; 1215 const TreeMatch *bb = (const TreeMatch *)b; 1216 1217 return bb->priority - aa->priority; 1218 } 1219 1220 static void 1221 insert_match (TreeMatch *match) 1222 { 1223 tree_matches = g_list_insert_sorted (tree_matches, match, cmp_match); 1224 } 1225 1226 static void 1227 insert_matchlet (TreeMatch *match, 1228 TreeMatchlet *matchlet, 1229 gint depth) 1230 { 1231 if (depth == 0) 1232 match->matches = g_list_append (match->matches, matchlet); 1233 else 1234 { 1235 GList *last; 1236 TreeMatchlet *m; 1237 1238 last = g_list_last (match->matches); 1239 if (!last) 1240 { 1241 tree_matchlet_free (matchlet); 1242 g_warning ("can't insert tree matchlet at depth %d", depth); 1243 return; 1244 } 1245 1246 m = (TreeMatchlet *) last->data; 1247 while (--depth > 0) 1248 { 1249 last = g_list_last (m->matches); 1250 if (!last) 1251 { 1252 tree_matchlet_free (matchlet); 1253 g_warning ("can't insert tree matchlet at depth %d", depth); 1254 return; 1255 } 1256 1257 m = (TreeMatchlet *) last->data; 1258 } 1259 m->matches = g_list_append (m->matches, matchlet); 1260 } 1261 } 1262 1263 static void 1264 read_tree_magic_from_directory (const gchar *prefix) 1265 { 1266 gchar *filename; 1267 gchar *text; 1268 gsize len; 1269 gchar **lines; 1270 gint i; 1271 TreeMatch *match; 1272 TreeMatchlet *matchlet; 1273 gint depth; 1274 1275 filename = g_build_filename (prefix, "mime", "treemagic", NULL); 1276 1277 if (g_file_get_contents (filename, &text, &len, NULL)) 1278 { 1279 if (strcmp (text, "MIME-TreeMagic") == 0) 1280 { 1281 lines = g_strsplit (text + strlen ("MIME-TreeMagic") + 2, "\n", 0); 1282 match = NULL; 1283 for (i = 0; lines[i] && lines[i][0]; i++) 1284 { 1285 if (lines[i][0] == '[') 1286 { 1287 match = parse_header (lines[i]); 1288 insert_match (match); 1289 } 1290 else 1291 { 1292 matchlet = parse_match_line (lines[i], &depth); 1293 insert_matchlet (match, matchlet, depth); 1294 } 1295 } 1296 1297 g_strfreev (lines); 1298 } 1299 else 1300 g_warning ("%s: header not found, skipping\n", filename); 1301 1302 g_free (text); 1303 } 1304 1305 g_free (filename); 1306 } 1307 1308 1309 static void 1310 xdg_mime_reload (void *user_data) 1311 { 1312 need_reload = TRUE; 1313 } 1314 1315 static void 1316 tree_magic_shutdown (void) 1317 { 1318 g_list_foreach (tree_matches, (GFunc)tree_match_free, NULL); 1319 g_list_free (tree_matches); 1320 tree_matches = NULL; 1321 } 1322 1323 static void 1324 tree_magic_init (void) 1325 { 1326 static gboolean initialized = FALSE; 1327 const gchar *dir; 1328 const gchar * const * dirs; 1329 int i; 1330 1331 if (!initialized) 1332 { 1333 initialized = TRUE; 1334 1335 xdg_mime_register_reload_callback (xdg_mime_reload, NULL, NULL); 1336 need_reload = TRUE; 1337 } 1338 1339 if (need_reload) 1340 { 1341 need_reload = FALSE; 1342 1343 tree_magic_shutdown (); 1344 1345 dir = g_get_user_data_dir (); 1346 read_tree_magic_from_directory (dir); 1347 dirs = g_get_system_data_dirs (); 1348 for (i = 0; dirs[i]; i++) 1349 read_tree_magic_from_directory (dirs[i]); 1350 } 1351 } 1352 1353 /* a filtering enumerator */ 1354 1355 typedef struct 1356 { 1357 gchar *path; 1358 gint depth; 1359 gboolean ignore_case; 1360 gchar **components; 1361 gchar **case_components; 1362 GFileEnumerator **enumerators; 1363 GFile **children; 1364 } Enumerator; 1365 1366 static gboolean 1367 component_match (Enumerator *e, 1368 gint depth, 1369 const gchar *name) 1370 { 1371 gchar *case_folded, *key; 1372 gboolean found; 1373 1374 if (strcmp (name, e->components[depth]) == 0) 1375 return TRUE; 1376 1377 if (!e->ignore_case) 1378 return FALSE; 1379 1380 case_folded = g_utf8_casefold (name, -1); 1381 key = g_utf8_collate_key (case_folded, -1); 1382 1383 found = strcmp (key, e->case_components[depth]) == 0; 1384 1385 g_free (case_folded); 1386 g_free (key); 1387 1388 return found; 1389 } 1390 1391 static GFile * 1392 next_match_recurse (Enumerator *e, 1393 gint depth) 1394 { 1395 GFile *file; 1396 GFileInfo *info; 1397 const gchar *name; 1398 1399 while (TRUE) 1400 { 1401 if (e->enumerators[depth] == NULL) 1402 { 1403 if (depth > 0) 1404 { 1405 file = next_match_recurse (e, depth - 1); 1406 if (file) 1407 { 1408 e->children[depth] = file; 1409 e->enumerators[depth] = g_file_enumerate_children (file, 1410 G_FILE_ATTRIBUTE_STANDARD_NAME, 1411 G_FILE_QUERY_INFO_NONE, 1412 NULL, 1413 NULL); 1414 } 1415 } 1416 if (e->enumerators[depth] == NULL) 1417 return NULL; 1418 } 1419 1420 while ((info = g_file_enumerator_next_file (e->enumerators[depth], NULL, NULL))) 1421 { 1422 name = g_file_info_get_name (info); 1423 if (component_match (e, depth, name)) 1424 { 1425 file = g_file_get_child (e->children[depth], name); 1426 g_object_unref (info); 1427 return file; 1428 } 1429 g_object_unref (info); 1430 } 1431 1432 g_object_unref (e->enumerators[depth]); 1433 e->enumerators[depth] = NULL; 1434 g_object_unref (e->children[depth]); 1435 e->children[depth] = NULL; 1436 } 1437 } 1438 1439 static GFile * 1440 enumerator_next (Enumerator *e) 1441 { 1442 return next_match_recurse (e, e->depth - 1); 1443 } 1444 1445 static Enumerator * 1446 enumerator_new (GFile *root, 1447 const char *path, 1448 gboolean ignore_case) 1449 { 1450 Enumerator *e; 1451 gint i; 1452 gchar *case_folded; 1453 1454 e = g_new0 (Enumerator, 1); 1455 e->path = g_strdup (path); 1456 e->ignore_case = ignore_case; 1457 1458 e->components = g_strsplit (e->path, G_DIR_SEPARATOR_S, -1); 1459 e->depth = g_strv_length (e->components); 1460 if (e->ignore_case) 1461 { 1462 e->case_components = g_new0 (char *, e->depth + 1); 1463 for (i = 0; e->components[i]; i++) 1464 { 1465 case_folded = g_utf8_casefold (e->components[i], -1); 1466 e->case_components[i] = g_utf8_collate_key (case_folded, -1); 1467 g_free (case_folded); 1468 } 1469 } 1470 1471 e->children = g_new0 (GFile *, e->depth); 1472 e->children[0] = g_object_ref (root); 1473 e->enumerators = g_new0 (GFileEnumerator *, e->depth); 1474 e->enumerators[0] = g_file_enumerate_children (root, 1475 G_FILE_ATTRIBUTE_STANDARD_NAME, 1476 G_FILE_QUERY_INFO_NONE, 1477 NULL, 1478 NULL); 1479 1480 return e; 1481 } 1482 1483 static void 1484 enumerator_free (Enumerator *e) 1485 { 1486 gint i; 1487 1488 for (i = 0; i < e->depth; i++) 1489 { 1490 if (e->enumerators[i]) 1491 g_object_unref (e->enumerators[i]); 1492 if (e->children[i]) 1493 g_object_unref (e->children[i]); 1494 } 1495 1496 g_free (e->enumerators); 1497 g_free (e->children); 1498 g_strfreev (e->components); 1499 if (e->case_components) 1500 g_strfreev (e->case_components); 1501 g_free (e->path); 1502 g_free (e); 1503 } 1504 1505 static gboolean 1506 matchlet_match (TreeMatchlet *matchlet, 1507 GFile *root) 1508 { 1509 GFile *file; 1510 GFileInfo *info; 1511 gboolean result; 1512 const gchar *attrs; 1513 Enumerator *e; 1514 GList *l; 1515 1516 e = enumerator_new (root, matchlet->path, !matchlet->match_case); 1517 1518 do 1519 { 1520 file = enumerator_next (e); 1521 if (!file) 1522 { 1523 enumerator_free (e); 1524 return FALSE; 1525 } 1526 1527 if (matchlet->mimetype) 1528 attrs = G_FILE_ATTRIBUTE_STANDARD_TYPE "," 1529 G_FILE_ATTRIBUTE_ACCESS_CAN_EXECUTE "," 1530 G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE; 1531 else 1532 attrs = G_FILE_ATTRIBUTE_STANDARD_TYPE "," 1533 G_FILE_ATTRIBUTE_ACCESS_CAN_EXECUTE; 1534 info = g_file_query_info (file, 1535 attrs, 1536 G_FILE_QUERY_INFO_NONE, 1537 NULL, 1538 NULL); 1539 if (info) 1540 { 1541 result = TRUE; 1542 1543 if (matchlet->type != G_FILE_TYPE_UNKNOWN && 1544 g_file_info_get_file_type (info) != matchlet->type) 1545 result = FALSE; 1546 1547 if (matchlet->executable && 1548 !g_file_info_get_attribute_boolean (info, G_FILE_ATTRIBUTE_ACCESS_CAN_EXECUTE)) 1549 result = FALSE; 1550 } 1551 else 1552 result = FALSE; 1553 1554 if (result && matchlet->non_empty) 1555 { 1556 GFileEnumerator *child_enum; 1557 GFileInfo *child_info; 1558 1559 child_enum = g_file_enumerate_children (file, 1560 G_FILE_ATTRIBUTE_STANDARD_NAME, 1561 G_FILE_QUERY_INFO_NONE, 1562 NULL, 1563 NULL); 1564 1565 if (child_enum) 1566 { 1567 child_info = g_file_enumerator_next_file (child_enum, NULL, NULL); 1568 if (child_info) 1569 g_object_unref (child_info); 1570 else 1571 result = FALSE; 1572 g_object_unref (child_enum); 1573 } 1574 else 1575 result = FALSE; 1576 } 1577 1578 if (result && matchlet->mimetype) 1579 { 1580 if (strcmp (matchlet->mimetype, g_file_info_get_content_type (info)) != 0) 1581 result = FALSE; 1582 } 1583 1584 g_object_unref (info); 1585 g_object_unref (file); 1586 } 1587 while (!result); 1588 1589 enumerator_free (e); 1590 1591 if (!matchlet->matches) 1592 return TRUE; 1593 1594 for (l = matchlet->matches; l; l = l->next) 1595 { 1596 TreeMatchlet *submatchlet; 1597 1598 submatchlet = l->data; 1599 if (matchlet_match (submatchlet, root)) 1600 return TRUE; 1601 } 1602 1603 return FALSE; 1604 } 1605 1606 static void 1607 match_match (TreeMatch *match, 1608 GFile *root, 1609 GPtrArray *types) 1610 { 1611 GList *l; 1612 1613 for (l = match->matches; l; l = l->next) 1614 { 1615 TreeMatchlet *matchlet = l->data; 1616 if (matchlet_match (matchlet, root)) 1617 { 1618 g_ptr_array_add (types, g_strdup (match->contenttype)); 1619 break; 1620 } 1621 } 1622 } 1623 1624 /** 1625 * g_content_type_guess_for_tree: 1626 * @root: the root of the tree to guess a type for 1627 * 1628 * Tries to guess the type of the tree with root @root, by 1629 * looking at the files it contains. The result is an array 1630 * of content types, with the best guess coming first. 1631 * 1632 * The types returned all have the form x-content/foo, e.g. 1633 * x-content/audio-cdda (for audio CDs) or x-content/image-dcf 1634 * (for a camera memory card). See the <ulink url="http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec">shared-mime-info</ulink> 1635 * specification for more on x-content types. 1636 * 1637 * This function is useful in the implementation of g_mount_guess_content_type(). 1638 * 1639 * Returns: an %NULL-terminated array of zero or more content types, or %NULL. 1640 * Free with g_strfreev() 1641 * 1642 * Since: 2.18 1643 */ 1644 char ** 1645 g_content_type_guess_for_tree (GFile *root) 1646 { 1647 GPtrArray *types; 1648 GList *l; 1649 1650 types = g_ptr_array_new (); 1651 1652 G_LOCK (gio_treemagic); 1653 1654 tree_magic_init (); 1655 for (l = tree_matches; l; l = l->next) 1656 { 1657 TreeMatch *match = l->data; 1658 match_match (match, root, types); 1659 } 1660 1661 G_UNLOCK (gio_treemagic); 1662 1663 g_ptr_array_add (types, NULL); 1664 1665 return (char **)g_ptr_array_free (types, FALSE); 1666 } 1667 1668 #endif /* Unix version */ 1669 1670 #define __G_CONTENT_TYPE_C__ 1671 #include "gioaliasdef.c" 1672
