summaryrefslogtreecommitdiffstats
path: root/src/installation_proxy.c
blob: 96028763b82ce954455c5b1dd81d1194a4598957 (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
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
/*
 * installation_proxy.c
 * com.apple.mobile.installation_proxy service implementation.
 *
 * Copyright (c) 2010-2015 Martin Szulecki All Rights Reserved.
 * Copyright (c) 2010-2013 Nikias Bassen, All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include <unistd.h>
#include <plist/plist.h>

#include "installation_proxy.h"
#include "property_list_service.h"
#include "common/debug.h"

typedef enum {
	INSTPROXY_COMMAND_TYPE_ASYNC,
	INSTPROXY_COMMAND_TYPE_SYNC
} instproxy_command_type_t;

struct instproxy_status_data {
	instproxy_client_t client;
	plist_t command;
	instproxy_status_cb_t cbfunc;
	void *user_data;
};

/**
 * Converts an error string identifier to a instproxy_error_t value.
 * Used internally to get correct error codes from a response.
 *
 * @param name The error name to convert.
 * @param error_detail Pointer to store error detail text if available. The
 *   caller is reponsible for freeing the allocated buffer after use. If NULL
 *   is passed no error detail will be returned.
 *
 * @return A matching instproxy_error_t error code or
 *   INSTPROXY_E_UNKNOWN_ERROR otherwise.
 */
static instproxy_error_t instproxy_strtoerr(const char* name)
{
	instproxy_error_t err = INSTPROXY_E_UNKNOWN_ERROR;

	if (strcmp(name, "AlreadyArchived") == 0) {
		err = INSTPROXY_E_ALREADY_ARCHIVED;
	} else if (strcmp(name, "APIInternalError") == 0) {
		err = INSTPROXY_E_API_INTERNAL_ERROR;
	} else if (strcmp(name, "ApplicationAlreadyInstalled") == 0) {
		err = INSTPROXY_E_APPLICATION_ALREADY_INSTALLED;
	} else if (strcmp(name, "ApplicationMoveFailed") == 0) {
		err = INSTPROXY_E_APPLICATION_MOVE_FAILED;
	} else if (strcmp(name, "ApplicationSINFCaptureFailed") == 0) {
		err = INSTPROXY_E_APPLICATION_SINF_CAPTURE_FAILED;
	} else if (strcmp(name, "ApplicationSandboxFailed") == 0) {
		err = INSTPROXY_E_APPLICATION_SANDBOX_FAILED;
	} else if (strcmp(name, "ApplicationVerificationFailed") == 0) {
		err = INSTPROXY_E_APPLICATION_VERIFICATION_FAILED;
	} else if (strcmp(name, "ArchiveDestructionFailed") == 0) {
		err = INSTPROXY_E_ARCHIVE_DESTRUCTION_FAILED;
	} else if (strcmp(name, "BundleVerificationFailed") == 0) {
		err = INSTPROXY_E_BUNDLE_VERIFICATION_FAILED;
	} else if (strcmp(name, "CarrierBundleCopyFailed") == 0) {
		err = INSTPROXY_E_CARRIER_BUNDLE_COPY_FAILED;
	} else if (strcmp(name, "CarrierBundleDirectoryCreationFailed") == 0) {
		err = INSTPROXY_E_CARRIER_BUNDLE_DIRECTORY_CREATION_FAILED;
	} else if (strcmp(name, "CarrierBundleMissingSupportedSIMs") == 0) {
		err = INSTPROXY_E_CARRIER_BUNDLE_MISSING_SUPPORTED_SIMS;
	} else if (strcmp(name, "CommCenterNotificationFailed") == 0) {
		err = INSTPROXY_E_COMM_CENTER_NOTIFICATION_FAILED;
	} else if (strcmp(name, "ContainerCreationFailed") == 0) {
		err = INSTPROXY_E_CONTAINER_CREATION_FAILED;
	} else if (strcmp(name, "ContainerP0wnFailed") == 0) {
		err = INSTPROXY_E_CONTAINER_P0WN_FAILED;
	} else if (strcmp(name, "ContainerRemovalFailed") == 0) {
		err = INSTPROXY_E_CONTAINER_REMOVAL_FAILED;
	} else if (strcmp(name, "EmbeddedProfileInstallFailed") == 0) {
		err = INSTPROXY_E_EMBEDDED_PROFILE_INSTALL_FAILED;
	} else if (strcmp(name, "ExecutableTwiddleFailed") == 0) {
		err = INSTPROXY_E_EXECUTABLE_TWIDDLE_FAILED;
	} else if (strcmp(name, "ExistenceCheckFailed") == 0) {
		err = INSTPROXY_E_EXISTENCE_CHECK_FAILED;
	} else if (strcmp(name, "InstallMapUpdateFailed") == 0) {
		err = INSTPROXY_E_INSTALL_MAP_UPDATE_FAILED;
	} else if (strcmp(name, "ManifestCaptureFailed") == 0) {
		err = INSTPROXY_E_MANIFEST_CAPTURE_FAILED;
	} else if (strcmp(name, "MapGenerationFailed") == 0) {
		err = INSTPROXY_E_MAP_GENERATION_FAILED;
	} else if (strcmp(name, "MissingBundleExecutable") == 0) {
		err = INSTPROXY_E_MISSING_BUNDLE_EXECUTABLE;
	} else if (strcmp(name, "MissingBundleIdentifier") == 0) {
		err = INSTPROXY_E_MISSING_BUNDLE_IDENTIFIER;
	} else if (strcmp(name, "MissingBundlePath") == 0) {
		err = INSTPROXY_E_MISSING_BUNDLE_PATH;
	} else if (strcmp(name, "MissingContainer") == 0) {
		err = INSTPROXY_E_MISSING_CONTAINER;
	} else if (strcmp(name, "NotificationFailed") == 0) {
		err = INSTPROXY_E_NOTIFICATION_FAILED;
	} else if (strcmp(name, "PackageExtractionFailed") == 0) {
		err = INSTPROXY_E_PACKAGE_EXTRACTION_FAILED;
	} else if (strcmp(name, "PackageInspectionFailed") == 0) {
		err = INSTPROXY_E_PACKAGE_INSPECTION_FAILED;
	} else if (strcmp(name, "PackageMoveFailed") == 0) {
		err = INSTPROXY_E_PACKAGE_MOVE_FAILED;
	} else if (strcmp(name, "PathConversionFailed") == 0) {
		err = INSTPROXY_E_PATH_CONVERSION_FAILED;
	} else if (strcmp(name, "RestoreContainerFailed") == 0) {
		err = INSTPROXY_E_RESTORE_CONTAINER_FAILED;
	} else if (strcmp(name, "SeatbeltProfileRemovalFailed") == 0) {
		err = INSTPROXY_E_SEATBELT_PROFILE_REMOVAL_FAILED;
	} else if (strcmp(name, "StageCreationFailed") == 0) {
		err = INSTPROXY_E_STAGE_CREATION_FAILED;
	} else if (strcmp(name, "SymlinkFailed") == 0) {
		err = INSTPROXY_E_SYMLINK_FAILED;
	} else if (strcmp(name, "UnknownCommand") == 0) {
		err = INSTPROXY_E_UNKNOWN_COMMAND;
	} else if (strcmp(name, "iTunesArtworkCaptureFailed") == 0) {
		err = INSTPROXY_E_ITUNES_ARTWORK_CAPTURE_FAILED;
	} else if (strcmp(name, "iTunesMetadataCaptureFailed") == 0) {
		err = INSTPROXY_E_ITUNES_METADATA_CAPTURE_FAILED;
	} else if (strcmp(name, "DeviceOSVersionTooLow") == 0) {
		err = INSTPROXY_E_DEVICE_OS_VERSION_TOO_LOW;
	} else if (strcmp(name, "DeviceFamilyNotSupported") == 0) {
		err = INSTPROXY_E_DEVICE_FAMILY_NOT_SUPPORTED;
	} else if (strcmp(name, "PackagePatchFailed") == 0) {
		err = INSTPROXY_E_PACKAGE_PATCH_FAILED;
	} else if (strcmp(name, "IncorrectArchitecture") == 0) {
		err = INSTPROXY_E_INCORRECT_ARCHITECTURE;
	} else if (strcmp(name, "PluginCopyFailed") == 0) {
		err = INSTPROXY_E_PLUGIN_COPY_FAILED;
	} else if (strcmp(name, "BreadcrumbFailed") == 0) {
		err = INSTPROXY_E_BREADCRUMB_FAILED;
	} else if (strcmp(name, "BreadcrumbUnlockFailed") == 0) {
		err = INSTPROXY_E_BREADCRUMB_UNLOCK_FAILED;
	} else if (strcmp(name, "GeoJSONCaptureFailed") == 0) {
		err = INSTPROXY_E_GEOJSON_CAPTURE_FAILED;
	} else if (strcmp(name, "NewsstandArtworkCaptureFailed") == 0) {
		err = INSTPROXY_E_NEWSSTAND_ARTWORK_CAPTURE_FAILED;
	} else if (strcmp(name, "MissingCommand") == 0) {
		err = INSTPROXY_E_MISSING_COMMAND;
	} else if (strcmp(name, "NotEntitled") == 0) {
		err = INSTPROXY_E_NOT_ENTITLED;
	} else if (strcmp(name, "MissingPackagePath") == 0) {
		err = INSTPROXY_E_MISSING_PACKAGE_PATH;
	} else if (strcmp(name, "MissingContainerPath") == 0) {
		err = INSTPROXY_E_MISSING_CONTAINER_PATH;
	} else if (strcmp(name, "MissingApplicationIdentifier") == 0) {
		err = INSTPROXY_E_MISSING_APPLICATION_IDENTIFIER;
	} else if (strcmp(name, "MissingAttributeValue") == 0) {
		err = INSTPROXY_E_MISSING_ATTRIBUTE_VALUE;
	} else if (strcmp(name, "LookupFailed") == 0) {
		err = INSTPROXY_E_LOOKUP_FAILED;
	} else if (strcmp(name, "DictCreationFailed") == 0) {
		err = INSTPROXY_E_DICT_CREATION_FAILED;
	} else if (strcmp(name, "InstallProhibited") == 0) {
		err = INSTPROXY_E_INSTALL_PROHIBITED;
	} else if (strcmp(name, "UninstallProhibited") == 0) {
		err = INSTPROXY_E_UNINSTALL_PROHIBITED;
	} else if (strcmp(name, "MissingBundleVersion") == 0) {
		err = INSTPROXY_E_MISSING_BUNDLE_VERSION;
	}

	return err;
}

/**
 * Locks an installation_proxy client, used for thread safety.
 *
 * @param client The installation_proxy client to lock
 */
static void instproxy_lock(instproxy_client_t client)
{
	debug_info("Locked");
	mutex_lock(&client->mutex);
}

/**
 * Unlocks an installation_proxy client, used for thread safety.
 *
 * @param client The installation_proxy client to lock
 */
static void instproxy_unlock(instproxy_client_t client)
{
	debug_info("Unlocked");
	mutex_unlock(&client->mutex);
}

/**
 * Converts a property_list_service_error_t value to an instproxy_error_t value.
 * Used internally to get correct error codes.
 *
 * @param err A property_list_service_error_t error code
 *
 * @return A matching instproxy_error_t error code,
 *     INSTPROXY_E_UNKNOWN_ERROR otherwise.
 */
static instproxy_error_t instproxy_error(property_list_service_error_t err)
{
	switch (err) {
		case PROPERTY_LIST_SERVICE_E_SUCCESS:
			return INSTPROXY_E_SUCCESS;
		case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
			return INSTPROXY_E_INVALID_ARG;
		case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
			return INSTPROXY_E_PLIST_ERROR;
		case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
			return INSTPROXY_E_CONN_FAILED;
		case PROPERTY_LIST_SERVICE_E_RECEIVE_TIMEOUT:
			return INSTPROXY_E_RECEIVE_TIMEOUT;
		default:
			break;
	}
	return INSTPROXY_E_UNKNOWN_ERROR;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_client_new(idevice_t device, lockdownd_service_descriptor_t service, instproxy_client_t *client)
{
	property_list_service_client_t plistclient = NULL;
	instproxy_error_t err = instproxy_error(property_list_service_client_new(device, service, &plistclient));
	if (err != INSTPROXY_E_SUCCESS) {
		return err;
	}

	instproxy_client_t client_loc = (instproxy_client_t) malloc(sizeof(struct instproxy_client_private));
	client_loc->parent = plistclient;
	mutex_init(&client_loc->mutex);
	client_loc->receive_status_thread = THREAD_T_NULL;

	*client = client_loc;
	return INSTPROXY_E_SUCCESS;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_client_start_service(idevice_t device, instproxy_client_t * client, const char* label)
{
	instproxy_error_t err = INSTPROXY_E_UNKNOWN_ERROR;
	service_client_factory_start_service(device, INSTPROXY_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(instproxy_client_new), &err);
	return err;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_client_free(instproxy_client_t client)
{
	if (!client)
		return INSTPROXY_E_INVALID_ARG;

	property_list_service_client_t parent = client->parent;
	client->parent = NULL;
	if (client->receive_status_thread) {
		debug_info("joining receive_status_thread");
		thread_join(client->receive_status_thread);
		thread_free(client->receive_status_thread);
		client->receive_status_thread = THREAD_T_NULL;
	}
	property_list_service_client_free(parent);
	mutex_destroy(&client->mutex);
	free(client);

	return INSTPROXY_E_SUCCESS;
}

/**
 * Sends a command to the device.
 * Only used internally.
 *
 * @param client The connected installation_proxy client.
 * @param command The command to execute. Required.
 *
 * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
 *     an error occurred.
 */
static instproxy_error_t instproxy_send_command(instproxy_client_t client, plist_t command)
{
	if (!client || !command)
		return INSTPROXY_E_INVALID_ARG;

	instproxy_error_t res = instproxy_error(property_list_service_send_xml_plist(client->parent, command));

	if (res != INSTPROXY_E_SUCCESS) {
		debug_info("could not send command plist, error %d", res);
		return res;
	}

	return res;
}

/**
 * Internally used function that will synchronously receive messages from
 * the specified installation_proxy until it completes or an error occurs.
 *
 * If status_cb is not NULL, the callback function will be called each time
 * a status update or error message is received.
 *
 * @param client The connected installation proxy client
 * @param status_cb Pointer to a callback function or NULL
 * @param command Operation specificiation in plist. Will be passed to the
 *        status_cb callback.
 * @param user_data Callback data passed to status_cb.
 */
static instproxy_error_t instproxy_receive_status_loop(instproxy_client_t client, plist_t command, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
	int complete = 0;
	plist_t node = NULL;
	char* command_name = NULL;
	char* status_name = NULL;
	char* error_name = NULL;
	char* error_description = NULL;
	uint64_t error_code = 0;
#ifndef STRIP_DEBUG_CODE
	int percent_complete = 0;
#endif

	instproxy_command_get_name(command, &command_name);

	do {
		/* receive status response */
		instproxy_lock(client);
		res = instproxy_error(property_list_service_receive_plist_with_timeout(client->parent, &node, 1000));
		instproxy_unlock(client);

		/* break out if we have a communication problem */
		if (res != INSTPROXY_E_SUCCESS && res != INSTPROXY_E_RECEIVE_TIMEOUT) {
			debug_info("could not receive plist, error %d", res);
			break;
		}

		/* parse status response */
		if (node) {
			/* check status for possible error to allow reporting it and aborting it gracefully */
			res = instproxy_status_get_error(node, &error_name, &error_description, &error_code);
			if (res != INSTPROXY_E_SUCCESS) {
				debug_info("command: %s, error %d, code 0x%08"PRIx64", name: %s, description: \"%s\"", command_name, res, error_code, error_name, error_description ? error_description: "N/A");
				complete = 1;
			}

			if (error_name) {
				free(error_name);
				error_name = NULL;
			}

			if (error_description) {
				free(error_description);
				error_description = NULL;
			}

			/* check status from response */
			instproxy_status_get_name(node, &status_name);
			if (!status_name) {
				debug_info("ignoring message without Status key:");
				debug_plist(node);
			} else {
				if (!strcmp(status_name, "Complete")) {
					complete = 1;
				} else {
					res = INSTPROXY_E_OP_IN_PROGRESS;
				}
#ifndef STRIP_DEBUG_CODE
				percent_complete = -1;
				instproxy_status_get_percent_complete(node, &percent_complete);
				if (percent_complete >= 0) {
					debug_info("command: %s, status: %s, percent (%d%%)", command_name, status_name, percent_complete);
				} else {
					debug_info("command: %s, status: %s", command_name, status_name);
				}
#endif
				free(status_name);
				status_name = NULL;
			}

			/* invoke status callback function */
			if (status_cb) {
				status_cb(command, node, user_data);
			}

			plist_free(node);
			node = NULL;
		}
	} while (!complete && client->parent);

	if (command_name)
		free(command_name);

	return res;
}

/**
 * Internally used "receive status" thread function that will call the specified
 * callback function when status update messages (or error messages) are
 * received.
 *
 * @param arg Pointer to an allocated struct instproxy_status_data that holds
 *     the required data about the connected client and the callback function.
 *
 * @return Always NULL.
 */
static void* instproxy_receive_status_loop_thread(void* arg)
{
	struct instproxy_status_data *data = (struct instproxy_status_data*)arg;

	/* run until the command is complete or an error occurs */
	(void)instproxy_receive_status_loop(data->client, data->command, data->cbfunc, data->user_data);

	/* cleanup */
	instproxy_lock(data->client);

	debug_info("done, cleaning up.");

	if (data->command) {
		plist_free(data->command);
	}

	if (data->client->receive_status_thread) {
		thread_free(data->client->receive_status_thread);
		data->client->receive_status_thread = THREAD_T_NULL;
	}

	instproxy_unlock(data->client);
	free(data);

	return NULL;
}

/**
 * Internally used helper function that creates a "receive status" thread which
 * will call the passed callback function when a status is received.
 *
 * If async is 0 no thread will be created and the command will run
 * synchronously until it completes or an error occurs.
 *
 * @param client The connected installation proxy client
 * @param command Operation name. Will be passed to the callback function
 *        in async mode or shown in debug messages in sync mode.
 * @param async A boolean indicating if receive loop should be run
 *        asynchronously or block.
 * @param status_cb Pointer to a callback function or NULL.
 * @param user_data Callback data passed to status_cb.
 *
 * @return INSTPROXY_E_SUCCESS when the thread was created (async mode), or
 *         when the command completed successfully (sync).
 *         An INSTPROXY_E_* error value is returned if an error occurred.
 */
static instproxy_error_t instproxy_receive_status_loop_with_callback(instproxy_client_t client, plist_t command, instproxy_command_type_t async, instproxy_status_cb_t status_cb, void *user_data)
{
	if (!client || !client->parent || !command) {
		return INSTPROXY_E_INVALID_ARG;
	}

	if (client->receive_status_thread) {
		return INSTPROXY_E_OP_IN_PROGRESS;
	}

	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
	if (async == INSTPROXY_COMMAND_TYPE_ASYNC) {
		/* async mode */
		struct instproxy_status_data *data = (struct instproxy_status_data*)malloc(sizeof(struct instproxy_status_data));
		if (data) {
			data->client = client;
			data->command = plist_copy(command);
			data->cbfunc = status_cb;
			data->user_data = user_data;

			if (thread_new(&client->receive_status_thread, instproxy_receive_status_loop_thread, data) == 0) {
				res = INSTPROXY_E_SUCCESS;
			}
		}
	} else {
		/* sync mode as a fallback */
		res = instproxy_receive_status_loop(client, command, status_cb, user_data);
	}

	return res;
}

/**
 * Internal core function to send a command and process the response.
 *
 * @param client The connected installation_proxy client
 * @param command The command specification dictionary.
 * @param async A boolean indicating whether the receive loop should be run
 *        asynchronously or block until completing the command.
 * @param status_cb Callback function to call if a command status is received.
 * @param user_data Callback data passed to status_cb.
 *
 * @return INSTPROXY_E_SUCCESS on success or an INSTPROXY_E_* error value if
 *     an error occurred.
 */
static instproxy_error_t instproxy_perform_command(instproxy_client_t client, plist_t command, instproxy_command_type_t async, instproxy_status_cb_t status_cb, void *user_data)
{
	if (!client || !client->parent || !command) {
		return INSTPROXY_E_INVALID_ARG;
	}

	if (client->receive_status_thread) {
		return INSTPROXY_E_OP_IN_PROGRESS;
	}

	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	/* send command */
	instproxy_lock(client);
	res = instproxy_send_command(client, command);
	instproxy_unlock(client);

	/* loop until status or error is received */
	res = instproxy_receive_status_loop_with_callback(client, command, async, status_cb, user_data);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_browse_with_callback(instproxy_client_t client, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	if (!client || !client->parent || !status_cb)
		return INSTPROXY_E_INVALID_ARG;

	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Browse"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));

	res = instproxy_perform_command(client, command, INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, (void*)user_data);

	plist_free(command);

	return res;
}

static void instproxy_append_current_list_to_result_cb(plist_t command, plist_t status, void *user_data)
{
	plist_t *result_array = (plist_t*)user_data;
	uint64_t current_amount = 0;
	plist_t current_list = NULL;
	uint64_t i;

	instproxy_status_get_current_list(status, NULL, NULL, &current_amount, &current_list);

	debug_info("current_amount: %d", current_amount);

	if (current_amount > 0) {
		for (i = 0; current_list && (i < current_amount); i++) {
			plist_t item = plist_array_get_item(current_list, i);
			plist_array_append_item(*result_array, plist_copy(item));
		}
	}

	if (current_list)
		plist_free(current_list);
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_browse(instproxy_client_t client, plist_t client_options, plist_t *result)
{
	if (!client || !client->parent || !result)
		return INSTPROXY_E_INVALID_ARG;

	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t result_array = plist_new_array();

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Browse"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));

	res = instproxy_perform_command(client, command, INSTPROXY_COMMAND_TYPE_SYNC, instproxy_append_current_list_to_result_cb, (void*)&result_array);

	if (res == INSTPROXY_E_SUCCESS) {
		*result = result_array;
	} else {
		plist_free(result_array);
	}

	plist_free(command);

	return res;
}

static void instproxy_copy_lookup_result_cb(plist_t command, plist_t status, void *user_data)
{
	plist_t* result = (plist_t*)user_data;

	plist_t node = plist_dict_get_item(status, "LookupResult");
	if (node) {
		*result = plist_copy(node);
	}
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_lookup(instproxy_client_t client, const char** appids, plist_t client_options, plist_t *result)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;
	int i = 0;
	plist_t lookup_result = NULL;
	plist_t command = NULL;
	plist_t appid_array = NULL;
	plist_t node = NULL;

	if (!client || !client->parent || !result)
		return INSTPROXY_E_INVALID_ARG;

	command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Lookup"));
	if (client_options) {
		node = plist_copy(client_options);
	} else if (appids) {
		node = plist_new_dict();
	}

	/* add bundle identifiers to client options */
	if (appids) {
		appid_array = plist_new_array();
		while (appids[i]) {
			plist_array_append_item(appid_array, plist_new_string(appids[i]));
			i++;
		}
		plist_dict_set_item(node, "BundleIDs", appid_array);
	}

	if (node) {
		plist_dict_set_item(command, "ClientOptions", node);
	}

	res = instproxy_perform_command(client, command, INSTPROXY_COMMAND_TYPE_SYNC, instproxy_copy_lookup_result_cb, (void*)&lookup_result);

	if (res == INSTPROXY_E_SUCCESS) {
		*result = lookup_result;
	} else {
		plist_free(lookup_result);
	}

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_install(instproxy_client_t client, const char *pkg_path, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Install"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));
	plist_dict_set_item(command, "PackagePath", plist_new_string(pkg_path));

	res = instproxy_perform_command(client, command, status_cb == NULL ? INSTPROXY_COMMAND_TYPE_SYNC : INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, user_data);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_upgrade(instproxy_client_t client, const char *pkg_path, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Upgrade"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));
	plist_dict_set_item(command, "PackagePath", plist_new_string(pkg_path));

	res = instproxy_perform_command(client, command, status_cb == NULL ? INSTPROXY_COMMAND_TYPE_SYNC : INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, user_data);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_uninstall(instproxy_client_t client, const char *appid, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Uninstall"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));
	plist_dict_set_item(command, "ApplicationIdentifier", plist_new_string(appid));

	res = instproxy_perform_command(client, command, status_cb == NULL ? INSTPROXY_COMMAND_TYPE_SYNC : INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, user_data);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_lookup_archives(instproxy_client_t client, plist_t client_options, plist_t *result)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("LookupArchives"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));

	res = instproxy_perform_command(client, command, INSTPROXY_COMMAND_TYPE_SYNC, instproxy_copy_lookup_result_cb, (void*)result);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_archive(instproxy_client_t client, const char *appid, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Archive"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));
	plist_dict_set_item(command, "ApplicationIdentifier", plist_new_string(appid));

	res = instproxy_perform_command(client, command, status_cb == NULL ? INSTPROXY_COMMAND_TYPE_SYNC : INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, user_data);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_restore(instproxy_client_t client, const char *appid, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("Restore"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));
	plist_dict_set_item(command, "ApplicationIdentifier", plist_new_string(appid));

	res = instproxy_perform_command(client, command, status_cb == NULL ? INSTPROXY_COMMAND_TYPE_SYNC : INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, user_data);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_remove_archive(instproxy_client_t client, const char *appid, plist_t client_options, instproxy_status_cb_t status_cb, void *user_data)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("RemoveArchive"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));
	plist_dict_set_item(command, "ApplicationIdentifier", plist_new_string(appid));

	res = instproxy_perform_command(client, command, status_cb == NULL ? INSTPROXY_COMMAND_TYPE_SYNC : INSTPROXY_COMMAND_TYPE_ASYNC, status_cb, user_data);

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_check_capabilities_match(instproxy_client_t client, const char** capabilities, plist_t client_options, plist_t *result)
{
	if (!client || !capabilities || !result)
		return INSTPROXY_E_INVALID_ARG;

	plist_t lookup_result = NULL;

	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	plist_t command = plist_new_dict();
	plist_dict_set_item(command, "Command", plist_new_string("CheckCapabilitiesMatch"));
	if (client_options)
		plist_dict_set_item(command, "ClientOptions", plist_copy(client_options));

	if (capabilities) {
		int i = 0;
		plist_t capabilities_array = plist_new_array();
		while (capabilities[i]) {
			plist_array_append_item(capabilities_array, plist_new_string(capabilities[i]));
			i++;
		}
		plist_dict_set_item(command, "Capabilities", capabilities_array);
	}

	res = instproxy_perform_command(client, command, INSTPROXY_COMMAND_TYPE_SYNC, instproxy_copy_lookup_result_cb, (void*)&lookup_result);

	if (res == INSTPROXY_E_SUCCESS) {
		*result = lookup_result;
	} else {
		plist_free(lookup_result);
	}

	plist_free(command);

	return res;
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_status_get_error(plist_t status, char **name, char** description, uint64_t* code)
{
	instproxy_error_t res = INSTPROXY_E_UNKNOWN_ERROR;

	if (!status || !name)
		return INSTPROXY_E_INVALID_ARG;

	plist_t node = plist_dict_get_item(status, "Error");
	if (node) {
		plist_get_string_val(node, name);
	} else {
		/* no error here */
		res = INSTPROXY_E_SUCCESS;
	}

	if (code != NULL) {
		*code = 0;
		node = plist_dict_get_item(status, "ErrorDetail");
		if (node) {
			plist_get_uint_val(node, code);
			*code &= 0xffffffff;
		}
	}

	if (description != NULL) {
		node = plist_dict_get_item(status, "ErrorDescription");
		if (node) {
			plist_get_string_val(node, description);
		}
	}

	if (*name) {
		res = instproxy_strtoerr(*name);
	}

	return res;
}

LIBIMOBILEDEVICE_API void instproxy_status_get_name(plist_t status, char **name)
{
	if (name) {
		plist_t node = plist_dict_get_item(status, "Status");
		if (node) {
			plist_get_string_val(node, name);
		} else {
			*name = NULL;
		}
	}
}

LIBIMOBILEDEVICE_API void instproxy_status_get_percent_complete(plist_t status, int *percent)
{
	uint64_t val = 0;
	if (percent) {
		plist_t node = plist_dict_get_item(status, "PercentComplete");
		if (node) {
			plist_get_uint_val(node, &val);
			*percent = val;
		}
	}
}

LIBIMOBILEDEVICE_API void instproxy_status_get_current_list(plist_t status, uint64_t* total, uint64_t* current_index, uint64_t* current_amount, plist_t* list)
{
	plist_t node = NULL;

	if (status && plist_get_node_type(status) == PLIST_DICT) {
		/* command specific logic: parse browsed list */
		if (list != NULL) {
			node = plist_dict_get_item(status, "CurrentList");
			if (node) {
				*current_amount = plist_array_get_size(node);
				*list = plist_copy(node);
			}
		}

		if (total != NULL) {
			node = plist_dict_get_item(status, "Total");
			if (node) {
				plist_get_uint_val(node, total);
			}
		}

		if (current_amount != NULL) {
			node = plist_dict_get_item(status, "CurrentAmount");
			if (node) {
				plist_get_uint_val(node, current_amount);
			}
		}

		if (current_index != NULL) {
			node = plist_dict_get_item(status, "CurrentIndex");
			if (node) {
				plist_get_uint_val(node, current_index);
			}
		}
	}
}

LIBIMOBILEDEVICE_API void instproxy_command_get_name(plist_t command, char** name)
{
	if (name) {
		plist_t node = plist_dict_get_item(command, "Command");
		if (node) {
			plist_get_string_val(node, name);
		} else {
			*name = NULL;
		}
	}
}

LIBIMOBILEDEVICE_API plist_t instproxy_client_options_new(void)
{
	return plist_new_dict();
}

LIBIMOBILEDEVICE_API void instproxy_client_options_add(plist_t client_options, ...)
{
	if (!client_options)
		return;

	va_list args;
	va_start(args, client_options);
	char *arg = va_arg(args, char*);
	while (arg) {
		char *key = strdup(arg);
		if (!strcmp(key, "SkipUninstall")) {
			int intval = va_arg(args, int);
			plist_dict_set_item(client_options, key, plist_new_bool(intval));
		} else if (!strcmp(key, "ApplicationSINF") || !strcmp(key, "iTunesMetadata") || !strcmp(key, "ReturnAttributes") || !strcmp(key, "BundleIDs")) {
			plist_t plistval = va_arg(args, plist_t);
			if (!plistval) {
				free(key);
				break;
			}
			plist_dict_set_item(client_options, key, plist_copy(plistval));
		} else {
			char *strval = va_arg(args, char*);
			if (!strval) {
				free(key);
				break;
			}
			plist_dict_set_item(client_options, key, plist_new_string(strval));
		}
		free(key);
		arg = va_arg(args, char*);
	}
	va_end(args);
}

LIBIMOBILEDEVICE_API void instproxy_client_options_set_return_attributes(plist_t client_options, ...)
{
	if (!client_options)
		return;

	plist_t return_attributes = plist_new_array();

	va_list args;
	va_start(args, client_options);
	char *arg = va_arg(args, char*);
	while (arg) {
		char *attribute = strdup(arg);
		plist_array_append_item(return_attributes, plist_new_string(attribute));
		free(attribute);
		arg = va_arg(args, char*);
	}
	va_end(args);

	plist_dict_set_item(client_options, "ReturnAttributes", return_attributes);
}

LIBIMOBILEDEVICE_API void instproxy_client_options_free(plist_t client_options)
{
	if (client_options) {
		plist_free(client_options);
	}
}

LIBIMOBILEDEVICE_API instproxy_error_t instproxy_client_get_path_for_bundle_identifier(instproxy_client_t client, const char* bundle_id, char** path)
{
	if (!client || !client->parent || !bundle_id)
		return INSTPROXY_E_INVALID_ARG;

	plist_t apps = NULL;

	// create client options for any application types
	plist_t client_opts = instproxy_client_options_new();
	instproxy_client_options_add(client_opts, "ApplicationType", "Any", NULL);

	// only return attributes we need
	instproxy_client_options_set_return_attributes(client_opts, "CFBundleIdentifier", "CFBundleExecutable", "Path", NULL);

	// only query for specific appid
	const char* appids[] = {bundle_id, NULL};

	// query device for list of apps
	instproxy_error_t ierr = instproxy_lookup(client, appids, client_opts, &apps);

	instproxy_client_options_free(client_opts);

	if (ierr != INSTPROXY_E_SUCCESS) {
		return ierr;
	}

	plist_t app_found = plist_access_path(apps, 1, bundle_id);
	if (!app_found) {
		if (apps)
			plist_free(apps);
		*path = NULL;
		return INSTPROXY_E_OP_FAILED;
	}

	char* path_str = NULL;
	plist_t path_p = plist_dict_get_item(app_found, "Path");
	if (path_p) {
		plist_get_string_val(path_p, &path_str);
	}

	char* exec_str = NULL;
	plist_t exec_p = plist_dict_get_item(app_found, "CFBundleExecutable");
	if (exec_p) {
		plist_get_string_val(exec_p, &exec_str);
	}

	if (!path_str) {
		debug_info("app path not found");
		return INSTPROXY_E_OP_FAILED;
	}

	if (!exec_str) {
		debug_info("bundle executable not found");
		return INSTPROXY_E_OP_FAILED;
	}

	plist_free(apps);

	char* ret = (char*)malloc(strlen(path_str) + 1 + strlen(exec_str) + 1);
	strcpy(ret, path_str);
	strcat(ret, "/");
	strcat(ret, exec_str);

	*path = ret;

	if (path_str) {
		free(path_str);
	}

	if (exec_str) {
		free(exec_str);
	}

	return INSTPROXY_E_SUCCESS;
}