js_archive.c 18.4 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
/* Synchronet JavaScript "Archive" Object */

/****************************************************************************
 * @format.tab-size 4		(Plain Text/Source Code File Header)			*
 * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
 *																			*
 * Copyright Rob Swindell - http://www.synchro.net/copyright.html			*
 *																			*
 * This program is free software; you can redistribute it and/or			*
 * modify it under the terms of the GNU General Public License				*
 * as published by the Free Software Foundation; either version 2			*
 * of the License, or (at your option) any later version.					*
 * See the GNU General Public License for more details: gpl.txt or			*
 * http://www.fsf.org/copyleft/gpl.html										*
 *																			*
 * For Synchronet coding style and modification guidelines, see				*
 * http://www.synchro.net/source.html										*
 *																			*
 * Note: If this box doesn't appear square, then you need to fix your tabs.	*
 ****************************************************************************/

#include "sbbs.h"
#include "js_request.h"
#include "filedat.h"

/* libarchive: */
#include <archive.h>
#include <archive_entry.h>

#include <stdbool.h>

JSClass js_archive_class;

static JSBool
js_create(JSContext *cx, uintN argc, jsval *arglist)
{
	jsval *argv = JS_ARGV(cx, arglist);
	JSObject *obj = JS_THIS_OBJECT(cx, arglist);
	char		format[32] = "";
	str_list_t	file_list = NULL;
	char		path[MAX_PATH + 1];
	bool		with_path = false;
	char		error[256] = "";
	jsval		val;
	jsrefcount	rc;
	const char* filename;

	if((filename = js_GetClassPrivate(cx, obj, &js_archive_class)) == NULL)
		return JS_FALSE;

	if(!js_argc(cx, argc, 1))
		return JS_FALSE;

	uintN argn = 0;
	if(argn < argc && JSVAL_IS_STRING(argv[argn])) {
		JSString* js_str = JS_ValueToString(cx, argv[argn]);
		if(js_str == NULL) {
			JS_ReportError(cx, "string conversion error");
			return JS_FALSE;
		}
		JSSTRING_TO_STRBUF(cx, js_str, format, sizeof(format), NULL);
		argn++;
	}
	if(argc > argn && JSVAL_IS_BOOLEAN(argv[argn])) {
		with_path = JSVAL_TO_BOOLEAN(argv[argn]);
		argn++;
	}
	if(argn < argc && JSVAL_IS_OBJECT(argv[argn])) {
		JSObject* array = JSVAL_TO_OBJECT(argv[argn]);
		if(!JS_IsArrayObject(cx, array)) {
			JS_ReportError(cx, "invalid array object");
			return JS_FALSE;
		}
		file_list = strListInit();
		for(jsint i = 0;; i++)  {
			if(!JS_GetElement(cx, array, i, &val))
				break;
			if(!JSVAL_IS_STRING(val))
				break;
			JSVALUE_TO_STRBUF(cx, val, path, sizeof(path), NULL);
			strListPush(&file_list, path);
		}
		argn++;
	}

	char* fext;
	if(*format == '\0' && (fext = getfext(filename)) != NULL)
		SAFECOPY(format,  fext + 1);
	if(*format == '\0')
		SAFECOPY(format, "zip");
	rc = JS_SUSPENDREQUEST(cx);
	long file_count = create_archive(filename, format, with_path, file_list, error, sizeof(error));
	strListFree(&file_list);
	JS_RESUMEREQUEST(cx, rc);
	if(file_count < 0) {
		JS_ReportError(cx, error);
		return JS_FALSE;
	}
	JS_SET_RVAL(cx, arglist, INT_TO_JSVAL(file_count));
	return JS_TRUE;
}

static JSBool
js_extract(JSContext *cx, uintN argc, jsval *arglist)
{
	jsval *argv = JS_ARGV(cx, arglist);
	JSObject *obj = JS_THIS_OBJECT(cx, arglist);
	char*		outdir = NULL;
	char*		allowed_filename_chars = SAFEST_FILENAME_CHARS;
	str_list_t	file_list = NULL;
	bool		with_path = false;
	int32		max_files = 0;
	char		error[256] = "";
	jsrefcount	rc;
	const char* filename;
	JS_SET_RVAL(cx, arglist, JSVAL_VOID);

	if((filename = js_GetClassPrivate(cx, obj, &js_archive_class)) == NULL)
		return JS_FALSE;

 	if(!js_argc(cx, argc, 1))
		return JS_FALSE;

	if(JSVAL_NULL_OR_VOID(argv[0]))
		JS_ReportError(cx, "Invalid output directory specified (null or undefined)");
	else
		JSVALUE_TO_MSTRING(cx, argv[0], outdir, NULL);
Rob Swindell's avatar
Rob Swindell committed
128
	if(JS_IsExceptionPending(cx) || outdir == NULL) {
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
		free(outdir);
		return JS_FALSE;
	}
	uintN argn = 1;
	if(argc > argn && JSVAL_IS_BOOLEAN(argv[argn])) {
		with_path = JSVAL_TO_BOOLEAN(argv[argn]);
		if(with_path)
			allowed_filename_chars = NULL;	// We trust this archive
		argn++;
	}
	if(argc > argn && JSVAL_IS_NUMBER(argv[argn])) {
		if(!JS_ValueToInt32(cx, argv[argn], &max_files)) {
			free(outdir);
			strListFree(&file_list);
			return JS_FALSE;
		}
		argn++;
	}
	for(; argn < argc; argn++) {
		if(JSVAL_IS_STRING(argv[argn])) {
			char path[MAX_PATH + 1];
			JSVALUE_TO_STRBUF(cx, argv[argn], path, sizeof(path), NULL);
			strListPush(&file_list, path);
		}
	}

	rc = JS_SUSPENDREQUEST(cx);
	long extracted = extract_files_from_archive(filename, outdir, allowed_filename_chars
		,with_path, (ulong)max_files, file_list, error, sizeof(error));
	strListFree(&file_list);
	free(outdir);
	JS_RESUMEREQUEST(cx, rc);
	if(*error != '\0') {
		if(extracted >= 0)
			JS_ReportError(cx, "%s (after extracting %ld items successfully)", error, extracted);
		else
			JS_ReportError(cx, "%s", error);
		return JS_FALSE;
	}
	JS_SET_RVAL(cx, arglist, INT_TO_JSVAL(extracted));
	return JS_TRUE;
}

/* getter */
static JSBool
js_archive_type(JSContext *cx, JSObject *obj, jsid id, jsval *vp)
{
	char		type[256] = "";
	jsrefcount	rc;
	const char* filename;

	if((filename = js_GetClassPrivate(cx, obj, &js_archive_class)) == NULL)
		return JS_FALSE;

	rc = JS_SUSPENDREQUEST(cx);
	int result = archive_type(filename, type, sizeof(type));
	JS_RESUMEREQUEST(cx, rc);
	if(result >= 0) {
		JSString* js_str = JS_NewStringCopyZ(cx, type);
		*vp = STRING_TO_JSVAL(js_str);
	} else
		*vp = JSVAL_NULL;
	return JS_TRUE;
}

// TODO: consider making 'path' and 'case-sensitive' arguments to wildmatch() configurable via method arguments
static JSBool
js_list(JSContext *cx, uintN argc, jsval *arglist)
{
	jsval *argv = JS_ARGV(cx, arglist);
	JSObject *obj = JS_THIS_OBJECT(cx, arglist);
	jsval val;
	jsrefcount	rc;
	JSObject* array;
	JSString* js_str;
	struct archive *ar;
	struct archive_entry *entry;
	bool hash = false;
	int	result;
	const char* filename;
	char pattern[MAX_PATH + 1] = "";

	if((filename = js_GetClassPrivate(cx, obj, &js_archive_class)) == NULL)
		return JS_FALSE;

	uintN argn = 0;
	if(argc > argn && JSVAL_IS_BOOLEAN(argv[argn])) {
		hash = JSVAL_TO_BOOLEAN(argv[argn]);
		argn++;
	}
	if(argc > argn && JSVAL_IS_STRING(argv[argn])) {
		JSString* js_str = JS_ValueToString(cx, argv[argn]);
		if(js_str == NULL) {
			JS_ReportError(cx, "string conversion error");
			return JS_FALSE;
		}
		JSSTRING_TO_STRBUF(cx, js_str, pattern, sizeof(pattern), NULL);
		argn++;
	}

	if((ar = archive_read_new()) == NULL) {
		JS_ReportError(cx, "archive_read_new() returned NULL");
		return JS_FALSE;
	}
	archive_read_support_filter_all(ar);
	archive_read_support_format_all(ar);
	if((result = archive_read_open_filename(ar, filename, 10240)) != ARCHIVE_OK) {
		JS_ReportError(cx, "archive_read_open_filename() returned %d: %s"
			,result, archive_error_string(ar));
		archive_read_free(ar);
		return JS_FALSE;
	}

    if((array = JS_NewArrayObject(cx, 0, NULL))==NULL) {
		JS_ReportError(cx, "JS_NewArrayObject() returned NULL");
		archive_read_free(ar);
		return JS_FALSE;
	}

	JSBool retval = JS_TRUE;
	rc = JS_SUSPENDREQUEST(cx);
	jsint len = 0;
	while(1) {
		result = archive_read_next_header(ar, &entry);
		if(result != ARCHIVE_OK) {
			if(result != ARCHIVE_EOF) {
				JS_ReportError(cx, "archive_read_next_header() returned %d: %s"
					,result, archive_error_string(ar));
				retval = JS_FALSE;
			}
			break;
		}

		const char* p = archive_entry_pathname(entry);
		if(p == NULL)
			continue;

		if(*pattern && !wildmatch(p, pattern, /* path: */false, /* case-sensitive: */false))
			continue;

		const char* type;
		switch(archive_entry_filetype(entry)) {
			case AE_IFREG:
				type = "file";
				break;
			case AE_IFLNK:
				type = "link";
				break;
			case AE_IFDIR:
				type = "directory";
				break;
			default:
				continue;
		}

		JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
		if(obj == NULL)
			break;

		js_str = JS_NewStringCopyZ(cx, type);
		if(js_str == NULL)
			break;
		val = STRING_TO_JSVAL(js_str);
		JS_SetProperty(cx, obj, "type", &val);

		js_str = JS_NewStringCopyZ(cx, p);
		if(js_str == NULL)
			break;
		val = STRING_TO_JSVAL(js_str);
		JS_SetProperty(cx, obj, "name", &val);

		if((p = archive_entry_sourcepath(entry)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "path", &val);
		}

		if((p = archive_entry_symlink(entry)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "symlink", &val);

//			val = INT_TO_JSVAL(archive_entry_symlink_type(entry));
//			JS_SetProperty(cx, obj, "symlink_type", &val);
		}

		if((p = archive_entry_hardlink(entry)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "hardlink", &val);
		}

		val = DOUBLE_TO_JSVAL((jsdouble)archive_entry_size(entry));
		JS_SetProperty(cx, obj, "size", &val);

		val = DOUBLE_TO_JSVAL((jsdouble)archive_entry_mtime(entry));
		JS_SetProperty(cx, obj, "time", &val);

		val = INT_TO_JSVAL(archive_entry_mode(entry));
		JS_SetProperty(cx, obj, "mode", &val);

		if((p = archive_entry_uname(entry)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "user", &val);
		}

		if((p = archive_entry_gname(entry)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "group", &val);
		}

		if((p = archive_format_name(ar)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "format", &val);
		}

		if((p = archive_filter_name(ar, 0)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "compression", &val);
		}

		if((p = archive_entry_fflags_text(entry)) != NULL) {
			js_str = JS_NewStringCopyZ(cx, p);
			if(js_str == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			JS_SetProperty(cx, obj, "fflags", &val);
		}

		if(hash && archive_entry_filetype(entry) == AE_IFREG) {
			MD5 md5_ctx;
			SHA1_CTX sha1_ctx;
			uint8_t md5[MD5_DIGEST_SIZE];
			uint8_t sha1[SHA1_DIGEST_SIZE];
			uint16_t crc16 = 0;
			uint32_t crc32 = 0;

			MD5_open(&md5_ctx);
			SHA1Init(&sha1_ctx);

			const void *buff;
			size_t size;
			la_int64_t offset;

			for(;;) {
				result = archive_read_data_block(ar, &buff, &size, &offset);
				if(result != ARCHIVE_OK)
					break;
				crc32 = crc32i(~crc32, buff, size);
				crc16 = icrc16(crc16, buff, size);
				MD5_digest(&md5_ctx, buff, size);
				SHA1Update(&sha1_ctx, buff, size);
			}
			MD5_close(&md5_ctx, md5);
			SHA1Final(&sha1_ctx, sha1);
			val = UINT_TO_JSVAL(crc16);
			if(!JS_SetProperty(cx, obj, "crc16", &val))
				break;
			val = UINT_TO_JSVAL(crc32);
			if(!JS_SetProperty(cx, obj, "crc32", &val))
				break;
			char hex[128];
			if((js_str = JS_NewStringCopyZ(cx, MD5_hex(hex, md5))) == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			if(!JS_SetProperty(cx, obj, "md5", &val))
				break;
			if((js_str = JS_NewStringCopyZ(cx, SHA1_hex(hex, sha1))) == NULL)
				break;
			val = STRING_TO_JSVAL(js_str);
			if(!JS_SetProperty(cx, obj, "sha1", &val))
				break;
		}

		val = OBJECT_TO_JSVAL(obj);
        if(!JS_SetElement(cx, array, len++, &val))
			break;
	}
	archive_read_free(ar);
	JS_RESUMEREQUEST(cx, rc);
	JS_SET_RVAL(cx, arglist, OBJECT_TO_JSVAL(array));

	return retval;
}

static JSBool
js_read(JSContext *cx, uintN argc, jsval *arglist)
{
	jsval *argv = JS_ARGV(cx, arglist);
	JSObject *obj = JS_THIS_OBJECT(cx, arglist);
	jsrefcount	rc;
	struct archive *ar;
	struct archive_entry *entry;
	int	result;
	const char* filename;
	char pattern[MAX_PATH + 1] = "";

	if((filename = js_GetClassPrivate(cx, obj, &js_archive_class)) == NULL)
		return JS_FALSE;

 	if(!js_argc(cx, argc, 1))
		return JS_FALSE;

	JS_SET_RVAL(cx, arglist, JSVAL_NULL);

	uintN argn = 0;
	if(argc > argn && JSVAL_IS_STRING(argv[argn])) {
		JSString* js_str = JS_ValueToString(cx, argv[argn]);
		if(js_str == NULL) {
			JS_ReportError(cx, "string conversion error");
			return JS_FALSE;
		}
		JSSTRING_TO_STRBUF(cx, js_str, pattern, sizeof(pattern), NULL);
		argn++;
	}

	if((ar = archive_read_new()) == NULL) {
		JS_ReportError(cx, "archive_read_new() returned NULL");
		return JS_FALSE;
	}
	archive_read_support_filter_all(ar);
	archive_read_support_format_all(ar);
	if((result = archive_read_open_filename(ar, filename, 10240)) != ARCHIVE_OK) {
		JS_ReportError(cx, "archive_read_open_filename() returned %d: %s"
			,result, archive_error_string(ar));
		archive_read_free(ar);
		return JS_FALSE;
	}

	JSBool retval = JS_TRUE;
	rc = JS_SUSPENDREQUEST(cx);
	while(1) {
		result = archive_read_next_header(ar, &entry);
		if(result != ARCHIVE_OK) {
			if(result != ARCHIVE_EOF) {
				JS_ReportError(cx, "archive_read_next_header() returned %d: %s"
					,result, archive_error_string(ar));
				retval = JS_FALSE;
			}
			break;
		}

		if(archive_entry_filetype(entry) != AE_IFREG)
			continue;

		const char* pathname = archive_entry_pathname(entry);
		if(pathname == NULL)
			continue;

		if(stricmp(pathname, pattern) != 0)
			continue;

		char* p = NULL;
		size_t total = 0;
		const void *buff;
		size_t size;
		la_int64_t offset;

		for(;;) {
			result = archive_read_data_block(ar, &buff, &size, &offset);
			if(result != ARCHIVE_OK)
				break;
			char* np = realloc(p, total + size);
			if(np == NULL)
				break;
			p = np;
			memcpy(p + total, buff, size);
			total += size;
		}
		JSString* js_str = JS_NewStringCopyN(cx, p, total);
		JS_SET_RVAL(cx, arglist, STRING_TO_JSVAL(js_str));
		free(p);
		break;
	}
	archive_read_free(ar);
	JS_RESUMEREQUEST(cx, rc);

	return retval;
}

static jsSyncMethodSpec js_archive_functions[] = {
	{ "create",		js_create,		1,	JSTYPE_NUMBER
		,JSDOCSTR("[string format] [,boolean with_path = false] [,array file_list]")
		,JSDOCSTR("create an archive of the specified format, returns the number of files archived, will throw exception upon error")
		,31900
	},
	{ "read",		js_read,		1,	JSTYPE_STRING
		,JSDOCSTR("string path/filename")
		,JSDOCSTR("read and return the contents of the specified archived text file")
		,31900
	},
	{ "extract",	js_extract,		1,	JSTYPE_NUMBER
		,JSDOCSTR("output_directory [,boolean with_path = false] [,number max_files = 0] [,string file/pattern [...]]")
		,JSDOCSTR("extract files from an archive to specified output directory, returns the number of files extracted, will throw exception upon error")
		,31900
	},
	{ "list",		js_list,		1,	JSTYPE_ARRAY
		,JSDOCSTR("[,boolean hash = false] [,string file/pattern]")
		,JSDOCSTR("get list of archive contents as an array of objects<br>"
			"archived object properties:<br>"
			"<ul>"
			"<li>string <tt>type</tt> - item type: 'file', 'link', or 'directory'"
			"<li>string <tt>name</tt> - item path/name"
			"<li>string <tt>path</tt> - source path"
			"<li>string <tt>symlink</tt>"
			"<li>string <tt>hardlink</tt>"
			"<li>number <tt>size</tt> - item size in bytes"
			"<li>number <tt>time</tt> - modification date/time in time_t format"
			"<li>number <tt>mode</tt> - permissions/mode flags"
			"<li>string <tt>user</tt> - owner name"
			"<li>string <tt>group</tt> - owner group"
			"<li>string <tt>format</tt> - archive format"
			"<li>string <tt>compression</tt> - compression method"
			"<li>string <tt>fflags</tt>"
			"<li>number <tt>crc16</tt> - 16-bit CRC, when hash is true and type is file"
			"<li>number <tt>crc32</tt> - 32-bit CRC, when hash is true and type is file"
			"<li>string <tt>md5</tt> - hexadecimal MD-5 sum, when hash is true and type is file"
			"<li>string <tt>sha1</tt> - hexadecimal SHA-1 sum, when hash is true and type is file"
			"</ul>"
			"when <tt>hash</tt> is <tt>true</tt>, calculates and returns hash/digest values of files in stored archive")
		,31900
	},
	{0}
};

#ifdef BUILD_JSDOCS
static char* archive_prop_desc[] = {

	 "format/compression type of archive file - <small>READ ONLY</small>"
	,NULL
};
#endif

static JSBool
js_archive_constructor(JSContext *cx, uintN argc, jsval *arglist)
{
	JSObject *obj = JS_THIS_OBJECT(cx, arglist);
	jsval *argv = JS_ARGV(cx, arglist);
	JSString* str;
	char* filename;

	obj = JS_NewObject(cx, &js_archive_class, NULL, NULL);
	JS_SET_RVAL(cx, arglist, OBJECT_TO_JSVAL(obj));
	if(argc < 1 || (str = JS_ValueToString(cx, argv[0]))==NULL) {
		JS_ReportError(cx, "No filename specified");
		return JS_FALSE;
	}

	JSSTRING_TO_MSTRING(cx, str, filename, NULL);

	if(!JS_SetPrivate(cx, obj, filename)) {
		JS_ReportError(cx, "JS_SetPrivate failed");
		return JS_FALSE;
	}

	if(!JS_DefineProperty(cx, obj, "type", JSVAL_VOID, js_archive_type, NULL, JSPROP_ENUMERATE|JSPROP_READONLY)) {
		JS_ReportError(cx, "JS_DefineProperty failed");
		return JS_FALSE;
	}

#ifdef BUILD_JSDOCS
	js_DescribeSyncObject(cx,obj,"Class used for opening, creating, reading, or writing archive files on the local file system<p>"
		,31900
		);
	js_DescribeSyncConstructor(cx,obj,"To create a new Archive object: <tt>var a = new Archive(<i>filename</i>)</tt>");
	js_CreateArrayOfStrings(cx, obj, "_property_desc_list", archive_prop_desc, JSPROP_READONLY);
#endif

	return JS_TRUE;
}

static void js_finalize_archive(JSContext *cx, JSObject *obj)
{
	void* p;

	if((p = JS_GetPrivate(cx, obj)) == NULL)
		return;
	free(p);
	JS_SetPrivate(cx, obj, NULL);
}

static JSBool js_archive_resolve(JSContext *cx, JSObject *obj, jsid id)
{
	char*			name=NULL;
	JSBool			ret;

	if(id != JSID_VOID && id != JSID_EMPTY) {
		jsval idval;

		JS_IdToValue(cx, id, &idval);
		if(JSVAL_IS_STRING(idval))
			JSSTRING_TO_MSTRING(cx, JSVAL_TO_STRING(idval), name, NULL);
	}

	ret=js_SyncResolve(cx, obj, name, NULL, js_archive_functions, NULL, 0);
	if(name)
		free(name);
	return ret;
}

static JSBool js_archive_enumerate(JSContext *cx, JSObject *obj)
{
	return js_archive_resolve(cx, obj, JSID_VOID);
}

JSClass js_archive_class = {
     "Archive"				/* name			*/
    ,JSCLASS_HAS_PRIVATE	/* flags		*/
	,JS_PropertyStub		/* addProperty	*/
	,JS_PropertyStub		/* delProperty	*/
	,JS_PropertyStub		/* getProperty	*/
	,JS_StrictPropertyStub	/* setProperty	*/
	,js_archive_enumerate	/* enumerate	*/
	,js_archive_resolve		/* resolve		*/
	,JS_ConvertStub			/* convert		*/
	,js_finalize_archive	/* finalize		*/
};

JSObject* js_CreateArchiveClass(JSContext* cx, JSObject* parent)
{
	return JS_InitClass(cx, parent, NULL
		,&js_archive_class
		,js_archive_constructor
		,1		/* number of constructor args */
		,NULL	/* props, set in constructor */
		,NULL	/* funcs, set in constructor */
		,NULL, NULL);
}