summaryrefslogtreecommitdiff
path: root/src/fr-command-rar.c
blob: 6bb70cdee95b77b3dc6a8b4540a20f415f457537 (plain)
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
128
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
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 *  Engrampa
 *
 *  Copyright (C) 2001 The Free Software Foundation, Inc.
 *
 *  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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#define _XOPEN_SOURCE 700

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include <glib.h>
#include <glib/gi18n.h>

#include "file-data.h"
#include "file-utils.h"
#include "gio-utils.h"
#include "glib-utils.h"
#include "fr-command.h"
#include "fr-command-rar.h"
#include "fr-error.h"
#include "rar-utils.h"

static void fr_command_rar_class_init  (FrCommandRarClass *class);
static void fr_command_rar_init        (FrCommand         *afile);
static void fr_command_rar_finalize    (GObject           *object);

/* Parent Class */

static FrCommandClass *parent_class = NULL;

/* rar 5.30 and later uses YYYY-MM-DD instead DD-MM-YY in the listing output */

static gboolean date_newstyle = FALSE;

static const struct {
	const gchar *command;
	FrCommandCaps capabilities;
} candidate_commands[] = {
	{ "rar", FR_COMMAND_CAN_READ_WRITE | FR_COMMAND_CAN_CREATE_VOLUMES },
	{ "unrar", FR_COMMAND_CAN_READ },
	{ "unrar-free", FR_COMMAND_CAN_READ }
};

static const gchar *
get_rar_command (void)
{
	for (guint i = 0; i < G_N_ELEMENTS(candidate_commands); i++) {
		if (is_program_in_path (candidate_commands[i].command))
			return candidate_commands[i].command;
	}

	/* this should never happen as we shouldn't get called if none of the
	 * candidate exist, but better safe than sorry */
	return "unrar";
}

/* -- list -- */

/*

// SAMPLE RAR VERSION 5.30 AND NEWER LISTING OUTPUT:

RAR 5.30   Copyright (c) 1993-2015 Alexander Roshal   18 Nov 2015
Trial version             Type RAR -? for help

Archive: /test.rar
Details: RAR 4

 Attributes      Size    Packed Ratio    Date    Time   Checksum  Name
----------- ---------  -------- ----- ---------- -----  --------  ----
 -rw-rw-r--      3165      1310  41%  2017-03-07 21:34  888D50B3  loremipsum.txt
 -rw-rw-r--         0         8   0%  2017-03-07 21:36  00000000  file2.empty
----------- ---------  -------- ----- ---------- -----  --------  ----
                 3165      1318  41%                              2

// SAMPLE RAR VERSION 5.00 TO 5.21 LISTING OUTPUT:

RAR 5.21   Copyright (c) 1993-2015 Alexander Roshal   15 Feb 2015
Trial version             Type RAR -? for help

Archive: /test.rar
Details: RAR 4

 Attributes      Size    Packed Ratio   Date   Time   Checksum  Name
----------- ---------  -------- ----- -------- -----  --------  ----
 -rw-rw-r--      3165      1310  41%  07-03-17 21:34  888D50B3  loremipsum.txt
 -rw-rw-r--         0         8   0%  07-03-17 21:36  00000000  file2.empty
----------- ---------  -------- ----- -------- -----  --------  ----
                 3165      1318  41%                            2

// SAMPLE RAR VERSION 4.20 AND OLDER LISTING OUTPUT:

RAR 4.20   Copyright (c) 1993-2012 Alexander Roshal   9 Jun 2012
Trial version             Type RAR -? for help

Archive /test.rar

Pathname/Comment
                  Size   Packed Ratio  Date   Time     Attr      CRC   Meth Ver
-------------------------------------------------------------------------------
 loremipsum.txt
                  3165     1310  41% 07-03-17 21:34 -rw-rw-r-- 888D50B3 m3b 2.9
 file2.empty
                     0        8   0% 07-03-17 21:36 -rw-rw-r-- 00000000 m3b 2.9
-------------------------------------------------------------------------------
    2             3165     1318  41%

*/

static time_t
mktime_from_string (const char *date_s,
		    const char *time_s)
{
	struct tm tm = {0, };
	char *date_time_s;

	tm.tm_isdst = -1;
	date_time_s = g_strjoin (" ", date_s, time_s, NULL);
	strptime (date_time_s, date_newstyle ? "%Y-%m-%d %H:%M" : "%d-%m-%y %H:%M", &tm);
	g_free (date_time_s);

	return mktime (&tm);
}

static gboolean
attribute_field_with_space (const char *line)
{
	/* sometimes when the archive is encrypted the attributes field is
	* like this: "* ..A...."
	* */
	return ((line[0] != ' ') && (line[1] == ' '));
}

static void
parse_name_field (char         *line,
		  FrCommandRar *rar_comm)
{
	char     *name_field;
	FileData *fdata;

	rar_comm->fdata = fdata = file_data_new ();

	/* read file name. */

	fdata->encrypted = (line[0] == '*') ? TRUE : FALSE;

	if (rar_comm->output_type == FR_COMMAND_RAR_TYPE_RAR5)
		/* rar-5 output adds trailing spaces to short file names :( */
		name_field = g_strchomp (g_strdup (get_last_field (line, attribute_field_with_space (line) ? 9 : 8)));
	else
		name_field = g_strdup (line + 1);

	if (name_field == NULL)
		return;

	if (*name_field == '/') {
		fdata->full_path = g_strdup (name_field);
		fdata->original_path = fdata->full_path;
	}
	else {
		fdata->full_path = g_strconcat ("/", name_field, NULL);
		fdata->original_path = fdata->full_path + 1;
	}

	fdata->link = NULL;
	fdata->path = remove_level_from_path (fdata->full_path);

	g_free (name_field);
}

static gboolean
attr_field_is_dir (const char   *attr_field,
                   FrCommandRar *rar_comm)
{
        if ((attr_field[0] == 'd') ||
            (rar_comm->output_type == FR_COMMAND_RAR_TYPE_RAR5 && attr_field[3] == 'D') ||
            (rar_comm->output_type != FR_COMMAND_RAR_TYPE_RAR5 && attr_field[1] == 'D'))
                return TRUE;

        return FALSE;
}

static void
process_line (char     *line,
	      gpointer  data)
{
	FrCommand     *comm = FR_COMMAND (data);
	FrCommandRar  *rar_comm = FR_COMMAND_RAR (comm);
	char         **fields;

	g_return_if_fail (line != NULL);

	if (! rar_comm->list_started) {
		int version = 0;

		if (sscanf (line, "RAR %d.", &version) == 1 || sscanf (line, "UNRAR %d.", &version) == 1) {
			rar_comm->output_type = (version >= 5) ? FR_COMMAND_RAR_TYPE_RAR5 : FR_COMMAND_RAR_TYPE_RAR4;

			if (version > 5)
				date_newstyle = TRUE;
			else if (version == 5 && (sscanf (line, "RAR 5.%d ", &version) == 1 ||
			                          sscanf (line, "UNRAR 5.%d ", &version) == 1))
			{
				if (version >= 30)
					date_newstyle = TRUE;
			}
		}
		else if (g_str_has_prefix (line, "unrar-free ")) {
			rar_comm->output_type = FR_COMMAND_RAR_TYPE_UNRAR_FREE;
			date_newstyle = FALSE;
		}
		else if (strncmp (line, "--------", 8) == 0) {
			rar_comm->list_started = TRUE;
			if (rar_comm->output_type != FR_COMMAND_RAR_TYPE_RAR5)
			    rar_comm->rar4_odd_line = TRUE;
		}
		else if (strncmp (line, "Volume ", 7) == 0)
			comm->multi_volume = TRUE;
		return;
	}

	if (strncmp (line, "--------", 8) == 0) {
		rar_comm->list_started = FALSE;
		return;
	}

	if (rar_comm->rar4_odd_line || rar_comm->output_type == FR_COMMAND_RAR_TYPE_RAR5)
		parse_name_field (line, rar_comm);

	if (! rar_comm->rar4_odd_line) {
		FileData   *fdata;
		const char *size_field, *ratio_field, *date_field, *time_field, *attr_field;
		int n_fields;

		if (rar_comm->output_type == FR_COMMAND_RAR_TYPE_RAR5)
			n_fields = 6 + (attribute_field_with_space (line) != 0);
		else if (rar_comm->output_type == FR_COMMAND_RAR_TYPE_UNRAR_FREE)
			n_fields = 4;
		else
			n_fields = 6;

		fdata = rar_comm->fdata;

		/* read file info. */

		fields = split_line (line, n_fields);
		if (g_strv_length (fields) < (guint) n_fields) {
			/* wrong line format, treat this line as a filename line */
			g_strfreev (fields);
			file_data_free (rar_comm->fdata);
			rar_comm->fdata = NULL;
			rar_comm->rar4_odd_line = TRUE;
			parse_name_field (line, rar_comm);
		}
		else {
			if (rar_comm->output_type == FR_COMMAND_RAR_TYPE_RAR5) {
				int offset = attribute_field_with_space (line) ? 1 : 0;

				size_field = fields[1+offset];
				ratio_field = fields[3+offset];
				date_field = fields[4+offset];
				time_field = fields[5+offset];
				attr_field = fields[0+offset];
			}
			else if (rar_comm->output_type == FR_COMMAND_RAR_TYPE_UNRAR_FREE) {
				size_field = fields[0];
				date_field = fields[1];
				time_field = fields[2];
				attr_field = fields[3];
				ratio_field = "";
			}
			else {
				size_field = fields[0];
				ratio_field = fields[2];
				date_field = fields[3];
				time_field = fields[4];
				attr_field = fields[5];
			}

			if ((strcmp (ratio_field, "<->") == 0)
			    || (strcmp (ratio_field, "<--") == 0))
			{
				/* ignore files that span more volumes */

				file_data_free (rar_comm->fdata);
				rar_comm->fdata = NULL;
			}
			else {
				fdata->size = g_ascii_strtoull (size_field, NULL, 10);
				fdata->modified = mktime_from_string (date_field, time_field);

				if (attr_field_is_dir (attr_field, rar_comm)) {
					char *tmp;

					tmp = fdata->full_path;
					fdata->full_path = g_strconcat (fdata->full_path, "/", NULL);

					fdata->original_path = g_strdup (fdata->original_path);
					fdata->free_original_path = TRUE;

					g_free (tmp);

					fdata->name = dir_name_from_path (fdata->full_path);
					fdata->dir = TRUE;
				}
				else {
					fdata->name = g_strdup (file_name_from_path (fdata->full_path));
					if (attr_field[0] == 'l')
						fdata->link = g_strdup (file_name_from_path (fdata->full_path));
				}

				fr_command_add_file (comm, fdata);
				rar_comm->fdata = NULL;
			}

			g_strfreev (fields);
		}
	}

	if (rar_comm->output_type != FR_COMMAND_RAR_TYPE_RAR5)
		rar_comm->rar4_odd_line = ! rar_comm->rar4_odd_line;
}

static void
add_password_arg (FrCommand  *comm,
		  const char *password,
		  gboolean    disable_query)
{
	if ((password != NULL) && (password[0] != '\0')) {
		if (comm->encrypt_header)
			fr_process_add_arg_concat (comm->process, "-hp", password, NULL);
		else
			fr_process_add_arg_concat (comm->process, "-p", password, NULL);
	}
	else if (disable_query)
		fr_process_add_arg (comm->process, "-p-");
}

static void
list__begin (gpointer data)
{
	FrCommandRar *comm = data;

	comm->list_started = FALSE;
}

static void
fr_command_rar_list (FrCommand  *comm)
{
	rar_check_multi_volume (comm);

	fr_process_set_out_line_func (comm->process, process_line, comm);

	fr_process_begin_command (comm->process, get_rar_command ());
	fr_process_set_begin_func (comm->process, list__begin, comm);
	fr_process_add_arg (comm->process, "v");
	fr_process_add_arg (comm->process, "-c-");
	fr_process_add_arg (comm->process, "-v");

	add_password_arg (comm, comm->password, TRUE);

	/* stop switches scanning */
	fr_process_add_arg (comm->process, "--");

	fr_process_add_arg (comm->process, comm->filename);
	fr_process_end_command (comm->process);

	fr_process_start (comm->process);
}

static void
parse_progress_line (FrCommand  *comm,
		     const char *prefix,
		     const char *message_prefix,
		     const char *line)
{
	if (strncmp (line, prefix, strlen (prefix)) == 0)
		fr_command_progress (comm, (double) ++comm->n_file / (comm->n_files + 1));
}

static void
process_line__add (char     *line,
		   gpointer  data)
{
	FrCommand *comm = FR_COMMAND (data);

	if (strncmp (line, "Creating archive ", 17) == 0) {
		const char *archive_filename = line + 17;
		char *uri;

		uri = g_filename_to_uri (archive_filename, NULL, NULL);
		if ((comm->volume_size > 0)
		    && g_regex_match_simple ("^.*\\.part(0)*2\\.rar$", uri, G_REGEX_CASELESS, 0))
		{
			char  *volume_filename;
			GFile *volume_file;

			volume_filename = g_strdup (archive_filename);
			volume_filename[strlen (volume_filename) - 5] = '1';
			volume_file = g_file_new_for_path (volume_filename);
			fr_command_set_multi_volume (comm, volume_file);

			g_object_unref (volume_file);
			g_free (volume_filename);
		}
		fr_command_working_archive (comm, uri);

		g_free (uri);
		return;
	}

	if (comm->n_files != 0)
		parse_progress_line (comm, "Adding    ", _("Adding file: "), line);
}

static void
fr_command_rar_add (FrCommand     *comm,
		    const char    *from_file,
		    GList         *file_list,
		    const char    *base_dir,
		    gboolean       update,
		    gboolean       recursive)
{
	GList *scan;

	fr_process_use_standard_locale (comm->process, TRUE);
	fr_process_set_out_line_func (comm->process,
				      process_line__add,
				      comm);

	fr_process_begin_command (comm->process, "rar");

	if (base_dir != NULL)
		fr_process_set_working_dir (comm->process, base_dir);

	if (update)
		fr_process_add_arg (comm->process, "u");
	else
		fr_process_add_arg (comm->process, "a");

	switch (comm->compression) {
	case FR_COMPRESSION_VERY_FAST:
		fr_process_add_arg (comm->process, "-m1"); break;
	case FR_COMPRESSION_FAST:
		fr_process_add_arg (comm->process, "-m2"); break;
	case FR_COMPRESSION_NORMAL:
		fr_process_add_arg (comm->process, "-m3"); break;
	case FR_COMPRESSION_MAXIMUM:
		fr_process_add_arg (comm->process, "-m5"); break;
	}

	add_password_arg (comm, comm->password, FALSE);

	if (comm->volume_size > 0)
		fr_process_add_arg_printf (comm->process, "-v%ub", comm->volume_size);

	/* disable percentage indicator */
	fr_process_add_arg (comm->process, "-Idp");

	fr_process_add_arg (comm->process, "--");
	fr_process_add_arg (comm->process, comm->filename);

	if (from_file == NULL)
		for (scan = file_list; scan; scan = scan->next)
			fr_process_add_arg (comm->process, scan->data);
	else
		fr_process_add_arg_concat (comm->process, "@", from_file, NULL);

	fr_process_end_command (comm->process);
}

static void
process_line__delete (char     *line,
		      gpointer  data)
{
	FrCommand *comm = FR_COMMAND (data);

	if (strncmp (line, "Deleting from ", 14) == 0) {
		char *uri;

		uri = g_filename_to_uri (line + 14, NULL, NULL);
		fr_command_working_archive (comm, uri);
		g_free (uri);

		return;
	}

	if (comm->n_files != 0)
		parse_progress_line (comm, "Deleting ", _("Removing file: "), line);
}

static void
fr_command_rar_delete (FrCommand  *comm,
		       const char *from_file,
		       GList      *file_list)
{
	GList *scan;

	fr_process_use_standard_locale (comm->process, TRUE);
	fr_process_set_out_line_func (comm->process,
				      process_line__delete,
				      comm);

	fr_process_begin_command (comm->process, "rar");
	fr_process_add_arg (comm->process, "d");

	fr_process_add_arg (comm->process, "--");
	fr_process_add_arg (comm->process, comm->filename);

	if (from_file == NULL)
		for (scan = file_list; scan; scan = scan->next)
			fr_process_add_arg (comm->process, scan->data);
	else
		fr_process_add_arg_concat (comm->process, "@", from_file, NULL);

	fr_process_end_command (comm->process);
}

static void
process_line__extract (char     *line,
		       gpointer  data)
{
	FrCommand *comm = FR_COMMAND (data);

	if (strncmp (line, "Extracting from ", 16) == 0) {
		char *uri;

		uri = g_filename_to_uri (line + 16, NULL, NULL);
		fr_command_working_archive (comm, uri);
		g_free (uri);

		return;
	}

	if (comm->n_files != 0)
		parse_progress_line (comm, "Extracting  ", _("Extracting file: "), line);
}

static void
fr_command_rar_extract (FrCommand  *comm,
			const char *from_file,
			GList      *file_list,
			const char *dest_dir,
			gboolean    overwrite,
			gboolean    skip_older,
			gboolean    junk_paths)
{
	GList *scan;

	fr_process_use_standard_locale (comm->process, TRUE);
	fr_process_set_out_line_func (comm->process,
				      process_line__extract,
				      comm);

	fr_process_begin_command (comm->process, get_rar_command ());

	fr_process_add_arg (comm->process, "x");

	/* keep broken extracted files */
	fr_process_add_arg (comm->process, "-kb");

	if (overwrite)
		fr_process_add_arg (comm->process, "-o+");
	else
		fr_process_add_arg (comm->process, "-o-");

	if (skip_older)
		fr_process_add_arg (comm->process, "-u");

	if (junk_paths)
		fr_process_add_arg (comm->process, "-ep");

	add_password_arg (comm, comm->password, TRUE);

	/* disable percentage indicator */
	fr_process_add_arg (comm->process, "-Idp");

	fr_process_add_arg (comm->process, "--");
	fr_process_add_arg (comm->process, comm->filename);

	if (from_file == NULL)
		for (scan = file_list; scan; scan = scan->next)
			fr_process_add_arg (comm->process, scan->data);
	else
		fr_process_add_arg_concat (comm->process, "@", from_file, NULL);

	if (dest_dir != NULL)
		fr_process_add_arg (comm->process, dest_dir);

	fr_process_end_command (comm->process);
}

static void
fr_command_rar_test (FrCommand   *comm)
{
	fr_process_begin_command (comm->process, get_rar_command ());

	fr_process_add_arg (comm->process, "t");

	add_password_arg (comm, comm->password, TRUE);

	/* disable percentage indicator */
	fr_process_add_arg (comm->process, "-Idp");

	/* stop switches scanning */
	fr_process_add_arg (comm->process, "--");

	fr_process_add_arg (comm->process, comm->filename);
	fr_process_end_command (comm->process);
}

static void
fr_command_rar_handle_error (FrCommand   *comm,
			     FrProcError *error)
{
	GList *scan;

#if 0
	{
		GList *scan;

		for (scan = g_list_last (comm->process->err.raw); scan; scan = scan->prev)
			g_print ("%s\n", (char*)scan->data);
	}
#endif

	if (error->type == FR_PROC_ERROR_NONE)
		return;

	/*if (error->status == 3)
		error->type = FR_PROC_ERROR_ASK_PASSWORD;
	else */
	if (error->status <= 1)
		error->type = FR_PROC_ERROR_NONE;

	for (scan = g_list_last (comm->process->err.raw); scan; scan = scan->prev) {
		char *line = scan->data;

		if ((strstr (line, "Incorrect password") != NULL) ||
		    (strstr (line, "password incorrect") != NULL) ||
		    (strstr (line, "password is incorrect") != NULL) ||
		    (strstr (line, "wrong password") != NULL)) {
			error->type = FR_PROC_ERROR_ASK_PASSWORD;
			break;
		}

		if (strncmp (line, "Unexpected end of archive", 25) == 0) {
			/* FIXME: handle this type of errors at a higher level when the freeze is over. */
		}

		if (strncmp (line, "Cannot find volume", 18) == 0) {
			char *volume_filename;

			g_clear_error (&error->gerror);

			error->type = FR_PROC_ERROR_MISSING_VOLUME;
			volume_filename = g_path_get_basename (line + strlen ("Cannot find volume "));
			error->gerror = g_error_new (FR_ERROR, error->status, _("Could not find the volume: %s"), volume_filename);
			g_free (volume_filename);
			break;
		}
	}
}

const char *rar_mime_type[] = { "application/x-cbr",
				"application/x-rar",
				NULL };

static const char **
fr_command_rar_get_mime_types (FrCommand *comm)
{
	return rar_mime_type;
}

static FrCommandCaps
fr_command_rar_get_capabilities (FrCommand  *comm,
			         const char *mime_type,
				 gboolean    check_command)
{
	FrCommandCaps capabilities;

	capabilities = FR_COMMAND_CAN_ARCHIVE_MANY_FILES | FR_COMMAND_CAN_ENCRYPT | FR_COMMAND_CAN_ENCRYPT_HEADER;
	/* add command-specific capabilities depending on availability */
	for (guint i = 0; i < G_N_ELEMENTS (candidate_commands); i++) {
		if (is_program_available (candidate_commands[i].command, check_command)) {
			capabilities |= candidate_commands[i].capabilities;
			break;
		}
	}

	/* multi-volumes are read-only */
	if ((comm->files->len > 0) && comm->multi_volume && (capabilities & FR_COMMAND_CAN_WRITE))
		capabilities ^= FR_COMMAND_CAN_WRITE;

	return capabilities;
}

static const char *
fr_command_rar_get_packages (FrCommand  *comm,
			     const char *mime_type)
{
	return PACKAGES ("rar,unrar,unrar-free");
}

static void
fr_command_rar_class_init (FrCommandRarClass *class)
{
	GObjectClass *gobject_class = G_OBJECT_CLASS (class);
	FrCommandClass *afc;

	parent_class = g_type_class_peek_parent (class);
	afc = (FrCommandClass*) class;

	gobject_class->finalize = fr_command_rar_finalize;

	afc->list             = fr_command_rar_list;
	afc->add              = fr_command_rar_add;
	afc->delete           = fr_command_rar_delete;
	afc->extract          = fr_command_rar_extract;
	afc->test             = fr_command_rar_test;
	afc->handle_error     = fr_command_rar_handle_error;
	afc->get_mime_types   = fr_command_rar_get_mime_types;
	afc->get_capabilities = fr_command_rar_get_capabilities;
	afc->get_packages     = fr_command_rar_get_packages;
}

static void
fr_command_rar_init (FrCommand *comm)
{
	comm->propAddCanUpdate             = TRUE;
	comm->propAddCanReplace            = TRUE;
	comm->propAddCanStoreFolders       = TRUE;
	comm->propExtractCanAvoidOverwrite = TRUE;
	comm->propExtractCanSkipOlder      = TRUE;
	comm->propExtractCanJunkPaths      = TRUE;
	comm->propPassword                 = TRUE;
	comm->propTest                     = TRUE;
	comm->propListFromFile             = TRUE;
}

static void
fr_command_rar_finalize (GObject *object)
{
	g_return_if_fail (object != NULL);
	g_return_if_fail (FR_IS_COMMAND_RAR (object));

	/* Chain up */
	if (G_OBJECT_CLASS (parent_class)->finalize)
		G_OBJECT_CLASS (parent_class)->finalize (object);
}

GType
fr_command_rar_get_type ()
{
	static GType type = 0;

	if (! type) {
		GTypeInfo type_info = {
			sizeof (FrCommandRarClass),
			NULL,
			NULL,
			(GClassInitFunc) fr_command_rar_class_init,
			NULL,
			NULL,
			sizeof (FrCommandRar),
			0,
			(GInstanceInitFunc) fr_command_rar_init,
			NULL
		};

		type = g_type_register_static (FR_TYPE_COMMAND,
					       "FRCommandRar",
					       &type_info,
					       0);
	}

	return type;
}