File: pst.py

package info (click to toggle)
kopanocore 8.7.0-3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 15,400 kB
  • sloc: cpp: 175,422; python: 24,623; perl: 7,319; php: 6,056; sh: 2,172; makefile: 1,294; xml: 45; ansic: 1
file content (2309 lines) | stat: -rw-r--r-- 109,834 bytes parent folder | download
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
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
#! /usr/bin/python3
# SPDX-License-Identifier: BSD-3-Clause
#
# Copyright (c) 2014, Dionach Ltd.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# * Neither the name of Dionach Ltd nor the names of its
#   contributors may be used to endorse or promote products derived from
#   this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# By BB
# based on MS-PST Microsoft specification for PST file format [MS-PST].pdf v2.1
#

import struct, binascii, datetime, math, os, sys, unicodedata, re, argparse, itertools, string, traceback
#import colorama
#import progressbar


class PSTException(Exception):
    pass


error_log_list = []

if sys.hexversion >= 0x03000000:
    def to_byte(x):
        return x

    def is_int(x):
        return isinstance(x, int)
else:
    to_byte = ord

    def is_int(x):
        return isinstance(x, (int, long))

##############################################################################################################################
#  _   _           _        ____        _        _                       ___   _ ____  ______    _
# | \ | | ___   __| | ___  |  _ \  __ _| |_ __ _| |__   __ _ ___  ___   / / \ | |  _ \| __ ) \  | |    __ _ _   _  ___ _ __
# |  \| |/ _ \ / _` |/ _ \ | | | |/ _` | __/ _` | '_ \ / _` / __|/ _ \ | ||  \| | | | |  _ \| | | |   / _` | | | |/ _ \ '__|
# | |\  | (_) | (_| |  __/ | |_| | (_| | || (_| | |_) | (_| \__ \  __/ | || |\  | |_| | |_) | | | |__| (_| | |_| |  __/ |
# |_| \_|\___/ \__,_|\___| |____/ \__,_|\__\__,_|_.__/ \__,_|___/\___| | ||_| \_|____/|____/| | |_____\__,_|\__, |\___|_|
#                                                                       \_\                /_/              |___/
##############################################################################################################################


class NID:

    NID_TYPE_HID = 0x00
    NID_TYPE_INTERNAL = 0x01
    NID_TYPE_NORMAL_FOLDER = 0x02
    NID_TYPE_SEARCH_FOLDER = 0x03
    NID_TYPE_NORMAL_MESSAGE = 0x04
    NID_TYPE_ATTACHMENT = 0x05
    NID_TYPE_SEARCH_UPDATE_QUEUE = 0x06
    NID_TYPE_SEARCH_CRITERIA_OBJECT = 0x07
    NID_TYPE_ASSOC_MESSAGE = 0x08
    NID_TYPE_CONTENTS_TABLE_INDEX = 0x0a
    NID_TYPE_RECEIVE_FOLDER_TABLE = 0x0b
    NID_TYPE_OUTGOING_QUEUE_TABLE = 0x0c
    NID_TYPE_HIERARCHY_TABLE = 0x0d
    NID_TYPE_CONTENTS_TABLE = 0x0e
    NID_TYPE_ASSOC_CONTENTS_TABLE = 0x0f
    NID_TYPE_SEARCH_CONTENTS_TABLE = 0x10
    NID_TYPE_ATTACHMENT_TABLE = 0x11
    NID_TYPE_RECIPIENT_TABLE = 0x12
    NID_TYPE_SEARCH_TABLE_INDEX = 0x13
    NID_TYPE_LTP = 0x1f

    NID_MESSAGE_STORE = 0x21
    NID_NAME_TO_ID_MAP = 0x61
    NID_NORMAL_FOLDER_TEMPLATE = 0xA1
    NID_SEARCH_FOLDER_TEMPLATE = 0xC1
    NID_ROOT_FOLDER = 0x122
    NID_SEARCH_MANAGEMENT_QUEUE = 0x1E1
    NID_SEARCH_ACTIVITY_LIST = 0x201
    NID_RESERVED1 = 0x241
    NID_SEARCH_DOMAIN_OBJECT = 0x261
    NID_SEARCH_GATHERER_QUEUE = 0x281
    NID_SEARCH_GATHERER_DESCRIPTOR = 0x2A1
    NID_RESERVED2 = 0x2E1
    NID_RESERVED3 = 0x301
    NID_SEARCH_GATHERER_FOLDER_QUEUE = 0x321

    def __init__(self, bytes_or_nid):

        if is_int(bytes_or_nid):
            self.nid = bytes_or_nid
        else:
            self.nid = struct.unpack('I', bytes_or_nid)[0]
        self.nidType = self.nid & 0x1f
        self.nidIndex = self.nid & 0xffffffe0
        self.is_hid = False
        self.is_nid = True

    def __repr__(self):

        return 'nid: %s, %s' % (hex(self.nid), hex(self.nidType))



class BID:

    def __init__(self, bytes):

        if len(bytes) == 4: # ansi
            self.bid = struct.unpack('I', bytes)[0]
        else: #unicode (8)
            self.bid = struct.unpack('Q', bytes)[0]
        if self.bid % 2 == 1: # A
            self.bid -= 1
        self.is_internal = (self.bid & 2 == 2) # B

    def __repr__(self):
        if self.is_internal:
            int_ext = 'I'
        else:
            int_ext = 'E'
        return 'bid: %s %s' % (self.bid, int_ext)



class BREF:

    def __init__(self, bytes):

        if len(bytes) == 8: # ansi
            self.bid, self.ib = struct.unpack('4sI', bytes)
        else: #unicode (16)
            self.bid, self.ib = struct.unpack('8sQ', bytes)
        self.bid = BID(self.bid)

    def __repr__(self):
        return '%s, ib: %s' % (self.bid, hex(self.ib))



class Page:

    PAGE_SIZE = 512
    ptypeBBT = 0x80
    ptypeNBT = 0x81
    ptypeFMap = 0x82
    ptypePMap = 0x83
    ptypeAMap = 0x84
    ptypeFPMap = 0x85
    ptypeDL = 0x86

    def __init__(self, bytes, is_ansi):

        # fixed 512 bytes
        if len(bytes) != Page.PAGE_SIZE:
            raise PSTException('Invalid Page size')
        if is_ansi:
            self.ptype, self.ptypeRepeat, self.wSig, self.bid, self.dwCRC = struct.unpack('BBHII', bytes[-12:])
        else: # unicode
            self.ptype, self.ptypeRepeat, self.wSig, self.dwCRC, self.bid = struct.unpack('BBHIQ', bytes[-16:])

        if self.ptype < Page.ptypeBBT or self.ptype > Page.ptypeDL:
            raise PSTException('Invalid Page Type %s ' % hex(self.ptype))
        if self.ptype != self.ptypeRepeat:
            raise PSTException('Page Type does not match Page Type Repeat %s!=%s ' % (hex(self.ptype), hex(self.ptypeRepeat)))

        if self.ptype in (Page.ptypeBBT, Page.ptypeNBT):
            if is_ansi:
                self.cEnt, self.cEntMax, self.cbEnt, self.cLevel = struct.unpack('BBBB', bytes[-16:-12])
                 # rgEntries 492 (cLevel>0) or 496 bytes (cLevel=0)
                entry_size = 12
            else: # unicode
                self.cEnt, self.cEntMax, self.cbEnt, self.cLevel = struct.unpack('BBBB', bytes[-24:-20])
                # rgEntries 488 bytes
                entry_size = 24
            if self.cLevel == 0:
                if self.ptype == Page.ptypeBBT:
                    entry_type = BBTENTRY
                else: # ptypeNBT
                    entry_type = NBTENTRY
                    entry_size = entry_size + entry_size//3
            else: # BTENTRY
                entry_type = BTENTRY

            self.rgEntries = []
            for i in range(self.cEnt): # self.cbEnt is size of each entry which may be different to entry_size
                self.rgEntries.append(entry_type(bytes[i*self.cbEnt:i*self.cbEnt+entry_size]))

    def __repr__(self):

        return 'PageType: %s, Entries: %s, Level: %s' % (hex(self.ptype), self.cEnt, self.cLevel)



class BTENTRY:

    def __init__(self, bytes):

        if len(bytes) == 12: # ansi
            self.btkey = struct.unpack('I',bytes[:4])[0]
            self.BREF = BREF(bytes[4:])
        else: # unicode 24
            self.btkey = struct.unpack('Q',bytes[:8])[0]
            self.BREF = BREF(bytes[8:])

    def __repr__(self):

        return '%s' % (self.BREF)



class BBTENTRY:

    def __init__(self, bytes):

        if len(bytes) == 12: #ansi
            self.BREF = BREF(bytes[:8])
            self.cb, self.cRef = struct.unpack('HH',bytes[8:12])
        else: # unicode (24)
            self.BREF = BREF(bytes[:16])
            self.cb, self.cRef = struct.unpack('HH',bytes[16:20])
        self.key = self.BREF.bid.bid

    def __repr__(self):

        return '%s, data size: %s' % (self.BREF, self.cb)



class NBTENTRY:

    def __init__(self, bytes):

        if len(bytes) == 16: #ansi
            self.nid, self.bidData, self.bidSub, self.nidParent = struct.unpack('4s4s4s4s',bytes)
        else: # unicode (32)
            self.nid, padding, self.bidData, self.bidSub, self.nidParent = struct.unpack('4s4s8s8s4s',bytes[:-4])
        self.nid = NID(self.nid)
        self.bidData = BID(self.bidData)
        self.bidSub = BID(self.bidSub)
        self.nidParent = NID(self.nidParent)
        self.key = self.nid.nid


    def __repr__(self):

        return '%s, bidData: %s, bidSub: %s' % (self.nid, self.bidData, self.bidSub)



class SLENTRY:

    def __init__(self, bytes):

        if len(bytes) == 12: #ansi
            self.nid, self.bidData, self.bidSub = struct.unpack('4s4s4s',bytes)
        else: # unicode 24
            self.nid, padding, self.bidData, self.bidSub = struct.unpack('4s4s8s8s',bytes)
        self.nid = NID(self.nid)
        self.bidData = BID(self.bidData)
        self.bidSub = BID(self.bidSub)


    def __repr__(self):

        return '%s %s sub%s' % (self.nid, self.bidData, self.bidSub)



class SIENTRY:

    def __init__(self, bytes):

        if len(bytes) == 8: #ansi
            self.nid, self.bid = struct.unpack('4s4s',bytes)
        else: # unicode 16
            self.nid, padding, self.bid = struct.unpack('4s4s8s',bytes)
        self.nid = NID(self.nid)
        self.bid = BID(self.bid)



class Block:

    # this has the first 512 entries removed, as decoding only uses from 512 onwards
    mpbbCryptFrom512 = (71, 241, 180, 230, 11, 106, 114, 72, 133, 78, 158, 235, 226, 248, 148, 83, 224, 187, 160, 2, 232, 90, 9, 171, 219, 227, 186, 198, 124, 195, 16, 221,
        57, 5, 150, 48, 245, 55, 96, 130, 140, 201, 19, 74, 107, 29, 243, 251, 143, 38, 151, 202, 145, 23, 1, 196, 50, 45, 110, 49, 149, 255, 217, 35,
        209, 0, 94, 121, 220, 68, 59, 26, 40, 197, 97, 87, 32, 144, 61, 131, 185, 67, 190, 103, 210, 70, 66, 118, 192, 109, 91, 126, 178, 15, 22, 41,
        60, 169, 3, 84, 13, 218, 93, 223, 246, 183, 199, 98, 205, 141, 6, 211, 105, 92, 134, 214, 20, 247, 165, 102, 117, 172, 177, 233, 69, 33, 112, 12,
        135, 159, 116, 164, 34, 76, 111, 191, 31, 86, 170, 46, 179, 120, 51, 80, 176, 163, 146, 188, 207, 25, 28, 167, 99, 203, 30, 77, 62, 75, 27, 155,
        79, 231, 240, 238, 173, 58, 181, 89, 4, 234, 64, 85, 37, 81, 229, 122, 137, 56, 104, 82, 123, 252, 39, 174, 215, 189, 250, 7, 244, 204, 142, 95,
        239, 53, 156, 132, 43, 21, 213, 119, 52, 73, 182, 18, 10, 127, 113, 136, 253, 157, 24, 65, 125, 147, 216, 88, 44, 206, 254, 36, 175, 222, 184, 54,
        200, 161, 128, 166, 153, 152, 168, 47, 14, 129, 101, 115, 228, 194, 162, 138, 212, 225, 17, 208, 8, 139, 42, 242, 237, 154, 100, 63, 193, 108, 249, 236)

    if sys.hexversion >= 0x03000000:
        decrypt_table = bytes.maketrans(bytearray(range(256)), bytearray(mpbbCryptFrom512))
    else:
        decrypt_table = string.maketrans(b''.join(map(chr, range(256))), b''.join(map(chr, mpbbCryptFrom512)))

    btypeData = 0
    btypeXBLOCK = 1
    btypeXXBLOCK = 2
    btypeSLBLOCK = 3
    btypeSIBLOCK = 4


    def __init__(self, bytes, offset, data_size, is_ansi, bid_check, bCryptMethod):

        self.is_ansi = is_ansi
        self.offset = offset # for debugging

        if self.is_ansi: # 12
            self.cb, self.wSig, self.bid, self.dwCRC = struct.unpack('HH4sI',bytes[-12:])
            bid_size = 4
            slentry_size = 12
            sientry_size = 8
            sl_si_entries_offset = 4 # [MS-PST] WRONG for SLBLOCK and SIBLOCK for ANSI: there is no 4 byte padding
        else: # unicode 16
            self.cb, self.wSig, self.dwCRC, self.bid = struct.unpack('HHI8s',bytes[-16:])
            bid_size = 8
            slentry_size = 24
            sientry_size = 16
            sl_si_entries_offset = 8
        self.bid = BID(self.bid)

        if self.bid.bid != bid_check.bid:
            raise PSTException('Block bid %s != ref bid %s' % (self.bid, bid_check))
        if data_size != self.cb:
            raise PSTException('BBT Entry data size %s != Block data size %s' % (data_size, self.cb) )

        if not self.bid.is_internal:

            self.block_type = Block.btypeData
            self.btype = 0
            self.cLevel = 0
            if bCryptMethod == 1: #NDB_CRYPT_PERMUTE
                self.data = bytes[:data_size].translate(Block.decrypt_table)
            else: # no data encoding
                self.data = bytes[:data_size] # data block

        else: # XBLOCK, XXBLOCK, SLBLOCK or SIBLOCK

            self.btype, self.cLevel, self.cEnt = struct.unpack('BBH',bytes[:4])

            if self.btype == 1: #XBLOCK, XXBLOCK
                self.lcbTotal = struct.unpack('I',bytes[4:8])[0]
                if self.cLevel == 1: #XBLOCK
                    self.block_type = Block.btypeXBLOCK
                elif self.cLevel == 2: #XXBLOCK
                    self.block_type = Block.btypeXXBLOCK
                else:
                    raise PSTException('Invalid Block Level %s' % self.cLevel)
                self.rgbid = []
                for i in range(self.cEnt):
                    self.rgbid.append(BID(bytes[8+i*bid_size:8+(i+1)*bid_size]))

            elif self.btype == 2: # SLBLOCK, SIBLOCK

                self.rgentries = []
                if self.cLevel == 0: #SLBLOCK
                    self.block_type = Block.btypeSLBLOCK
                    for i in range(self.cEnt):
                        self.rgentries.append(SLENTRY(bytes[sl_si_entries_offset + i*slentry_size:sl_si_entries_offset + (i+1)*slentry_size]))
                elif self.cLevel ==1: #SIBLOCK
                    self.block_type = Block.btypeSIBLOCK
                    for i in range(self.cEnt):
                        self.rgentries.append(SIENTRY(bytes[sl_si_entries_offset + i*sientry_size:sl_si_entries_offset + (i+1)*sientry_size]))
                else:
                    raise PSTException('Invalid Block Level %s' % self.cLevel)

            else:
                raise PSTException('Invalid Block Type %s' % self.btype)


    def __repr__(self):

        return 'Block %s %s %s' % (self.bid, self.btype, self.cLevel)



class NBD:
    """Node Database Layer"""

    def __init__(self, fd, header):

        self.fd = fd
        self.header = header
        self.nbt_entries = self.get_page_leaf_entries(NBTENTRY, self.header.root.BREFNBT.ib)
        self.bbt_entries = self.get_page_leaf_entries(BBTENTRY, self.header.root.BREFBBT.ib)


    def fetch_page(self, offset):

        self.fd.seek(offset)
        return Page(self.fd.read(Page.PAGE_SIZE), self.header.is_ansi)


    def fetch_block(self, bid):

        try:
            bbt_entry = self.bbt_entries[bid.bid]
        except KeyError:
            raise PSTException('Invalid BBTEntry: %s' % bid)
        offset = bbt_entry.BREF.ib
        data_size = bbt_entry.cb

        if self.header.is_ansi:
            block_trailer_size = 12
        else: # unicode
            block_trailer_size = 16
        # block size must align on 64 bytes
        size_diff = (data_size + block_trailer_size) % 64
        if size_diff == 0:
            block_size = data_size + block_trailer_size
        else:
            block_size = data_size + block_trailer_size + 64 - size_diff
        self.fd.seek(offset)
        return Block(self.fd.read(block_size), offset, data_size, self.header.is_ansi, bid, self.header.bCryptMethod)


    def fetch_all_block_data(self, bid):
        """returns list of block datas"""

        datas = []
        block = self.fetch_block(bid)
        if block.block_type == Block.btypeData:
            datas.append(block.data)
        elif block.block_type == Block.btypeXBLOCK:
            for xbid in block.rgbid:
                xblock = self.fetch_block(xbid)
                if xblock.block_type != Block.btypeData:
                    raise PSTException('Expecting data block, got block type %s' % xblock.block_type)
                datas.append(xblock.data)
        elif block.block_type == Block.btypeXXBLOCK:
            for xxbid in block.rgbid:
                xxblock = self.fetch_block(xxbid)
                if xxblock.block_type != Block.btypeXBLOCK:
                    raise PSTException('Expecting XBLOCK, got block type %s' % xxblock.block_type)
                datas.extend(self.fetch_all_block_data(xxbid))
        else:
            raise PSTException('Invalid block type (not data/XBLOCK/XXBLOCK), got %s' % block.block_type)
        return datas


    def fetch_subnodes(self, bid):
        """ get dictionary of subnode SLENTRYs for subnode bid"""

        subnodes = {}
        block = self.fetch_block(bid)
        if block.block_type == Block.btypeSLBLOCK:
            for slentry in block.rgentries:
                if slentry.nid in subnodes.keys():
                    raise PSTException('Duplicate subnode %s' % slentry.nid)
                subnodes[slentry.nid.nid] = slentry
        elif block.block_type == Block.btypeSIBLOCK:
            for sientry in block.rgentries:
                subnodes.update(self.fetch_subnodes(sientry.bid))
        else:
            raise PSTException('Invalid block type (not SLBLOCK/SIBLOCK), got %s' % block.block_type)
        return subnodes


    def get_page_leaf_entries(self, entry_type, page_offset):
        """ entry type is NBTENTRY or BBTENTRY"""

        leaf_entries = {}
        page = self.fetch_page(page_offset)
        for entry in page.rgEntries:
            if isinstance(entry, entry_type):
                if entry.key in leaf_entries.keys():
                    raise PSTException('Invalid Leaf Key %s' % entry)
                leaf_entries[entry.key] = entry
            elif isinstance(entry, BTENTRY):
                leaf_entries.update(self.get_page_leaf_entries(entry_type, entry.BREF.ib))
            else:
                raise PSTException('Invalid Entry Type')
        return leaf_entries



################################################################################################################################################################################
#  _     _     _           _____     _     _                               _   ____                            _   _              ___   _____ ______    _
# | |   (_)___| |_ ___    |_   _|_ _| |__ | | ___  ___      __ _ _ __   __| | |  _ \ _ __ ___  _ __   ___ _ __| |_(_) ___  ___   / / | |_   _|  _ \ \  | |    __ _ _   _  ___ _ __
# | |   | / __| __/ __|     | |/ _` | '_ \| |/ _ \/ __|    / _` | '_ \ / _` | | |_) | '__/ _ \| '_ \ / _ \ '__| __| |/ _ \/ __| | || |   | | | |_) | | | |   / _` | | | |/ _ \ '__|
# | |___| \__ \ |_\__ \_    | | (_| | |_) | |  __/\__ \_  | (_| | | | | (_| | |  __/| | | (_) | |_) |  __/ |  | |_| |  __/\__ \ | || |___| | |  __/| | | |__| (_| | |_| |  __/ |
# |_____|_|___/\__|___( )   |_|\__,_|_.__/|_|\___||___( )  \__,_|_| |_|\__,_| |_|   |_|  \___/| .__/ \___|_|   \__|_|\___||___/ | ||_____|_| |_|   | | |_____\__,_|\__, |\___|_|
#                     |/                              |/                                      |_|                                \_\              /_/              |___/
################################################################################################################################################################################


class HID:

    def __init__(self, bytes):

        # hidIndex cannot be zero, first 5 bits must be zero (hidType)
        self.hidIndex, self.hidBlockIndex = struct.unpack('HH', bytes)
        self.hidType = self.hidIndex & 0x1F
        self.hidIndex = (self.hidIndex >> 5) & 0x7FF
        self.is_hid = True
        self.is_nid = False



class HNPAGEMAP:

    def __init__(self, bytes):

        self.cAlloc, self.cFree = struct.unpack('HH', bytes[:4])
        self.rgibAlloc = []
        for i in range(self.cAlloc+1): # cAlloc+1 is next free
            self.rgibAlloc.append(struct.unpack('H', bytes[4+i*2:4+(i+1)*2])[0])



class HN:

    bTypeTC = 0x7C
    bTypeBTH = 0xB5
    bTypePC = 0xBC

    def __init__(self, nbt_entry, ltp, datas):
        """datas = list of data sections from blocks"""

        self.nbt_entry = nbt_entry
        self.datas = datas
        self.ltp = ltp
        self.hnpagemaps = []
        for i in range(len(datas)):
            bytes = datas[i]
            if i == 0: # HNHDR
                ibHnpm, self.bSig, self.bClientSig, self.hidUserRoot, self.rgbFillLevel = struct.unpack('HBB4sI', bytes[:12])
                self.hidUserRoot = HID(self.hidUserRoot)
                if self.bSig != 0xEC:
                    raise PSTException('Invalid HN Signature %s' % self.bSig)
            else: # HNPAGEHDR or HNBITMAPHDR
                ibHnpm = struct.unpack('H', bytes[:2])[0]
            self.hnpagemaps.append(HNPAGEMAP(bytes[ibHnpm:]))

        # subnode SLENTRYs
        self.subnodes = None
        if self.nbt_entry.bidSub.bid != 0:
            self.subnodes = self.ltp.nbd.fetch_subnodes(self.nbt_entry.bidSub)


    def get_hid_data(self, hid):

        start_offset = self.hnpagemaps[hid.hidBlockIndex].rgibAlloc[hid.hidIndex-1]
        end_offset = self.hnpagemaps[hid.hidBlockIndex].rgibAlloc[hid.hidIndex]
        return self.datas[hid.hidBlockIndex][start_offset:end_offset]


    def __repr__(self):

        return 'HN: %s, Blocks: %s' % (self.nbt_entry, len(self.datas))



class BTHData:

    def __init__(self, key, data):

        self.key = key
        self.data = data



class BTHIntermediate:

    def __init__(self, key, hidNextLevel, bIdxLevel):

        self.key = key
        self.hidNextLevel = hidNextLevel
        self.bIdxLevel = bIdxLevel



class BTH:

    def __init__(self, hn, bth_hid):
        """ hn = HN heapnode, bth_hid is hid of BTH header"""

        #BTHHEADER
        bth_header_bytes = hn.get_hid_data(bth_hid)
        self.bType, self.cbKey, self.cbEnt, self.bIdxLevels, self.hidRoot = struct.unpack('BBBB4s', bth_header_bytes)
        self.hidRoot = HID(self.hidRoot)
        if self.bType != HN.bTypeBTH:
            raise PSTException('Invalid BTH Type %s' % self.bType)
        self.bth_datas = []
        bth_working_stack = []
        if self.hidRoot != 0:
            bytes = hn.get_hid_data(self.hidRoot)
            bth_record_list = self.get_bth_records(bytes, self.bIdxLevels)
            if self.bIdxLevels == 0: # no intermediate levels
                self.bth_datas = bth_record_list
            else:
                bth_working_stack = bth_record_list
                while bth_working_stack:
                    bth_intermediate = bth_working_stack.pop()
                    bytes = hn.get_hid_data(bth_intermediate.hidNextLevel)
                    bth_record_list = self.get_bth_records(bytes, bth_intermediate.bIdxLevel - 1)
                    if bth_intermediate.bIdxLevel - 1 == 0: # leafs
                        self.bth_datas.extend(bth_record_list)
                    else:
                        bth_working_stack.extend(bth_record_list)


    def get_bth_records(self, bytes, bIdxLevel):

        bth_record_list = []
        if bIdxLevel == 0: # leaf
            record_size = self.cbKey + self.cbEnt
            records = len(bytes) // record_size
            for i in range(records):
                key, data = struct.unpack('%ss%ss' % (self.cbKey, self.cbEnt) , bytes[i*record_size:(i+1)*record_size])
                bth_record_list.append(BTHData(key, data))
        else: # intermediate
            record_size = self.cbKey + 4
            records = len(bytes) // record_size
            for i in range(records):
                key, hidNextLevel = struct.unpack('%ss4s' % self.cbKey , bytes[i*record_size:(i+1)*record_size])
                hidNextLevel = HID(hidNextLevel)
                bth_record_list.append(BTHIntermediate(key, hidNextLevel, bIdxLevel))
        return bth_record_list



class PCBTHData:

    def __init__(self, bth_data, hn):

        self.wPropId = struct.unpack('H', bth_data.key)[0]
        self.wPropType, self.dwValueHnid = struct.unpack('H4s', bth_data.data)
        ptype = hn.ltp.ptypes[self.wPropType]
        if not ptype.is_variable and not ptype.is_multi:
           if ptype.byte_count <= 4:
               self.value = ptype.value(self.dwValueHnid[:ptype.byte_count])
           else:
               self.hid = HID(self.dwValueHnid)
               self.value = ptype.value(hn.get_hid_data(self.hid))
        else:
            if NID(self.dwValueHnid).nidType == NID.NID_TYPE_HID:
                self.hid = HID(self.dwValueHnid)
                self.value = ptype.value(hn.get_hid_data(self.hid))
            else:
                self.subnode_nid = NID(self.dwValueHnid)
                if self.subnode_nid.nid in hn.subnodes.keys():
                    subnode_nid_bid = hn.subnodes[self.subnode_nid.nid].bidData
                else:
                    raise PSTException('Invalid NID subnode reference %s' % self.subnode_nid)
                datas = hn.ltp.nbd.fetch_all_block_data(subnode_nid_bid)
                self.value = ptype.value(b''.join(datas))

    def __repr__(self):

        return '%s (%s) = %s' % (hex(self.wPropId), hex(self.wPropType), repr(self.value))



class PTypeEnum:

    PtypInteger16 = 0x02
    PtypInteger32 = 0x03
    PtypFloating32 = 0x04
    PtypFloating64 = 0x05
    PtypCurrency = 0x06
    PtypFloatingTime = 0x07
    PtypErrorCode = 0x0A
    PtypBoolean = 0x0B
    PtypInteger64 = 0x14
    PtypString = 0x1F
    PtypString8 = 0x1E
    PtypTime = 0x40
    PtypGuid = 0x48
    PtypServerId = 0xFB
    PtypRestriction = 0xFD
    PtypRuleAction = 0xFE
    PtypBinary = 0x102
    PtypMultipleInteger16 = 0x1002
    PtypMultipleInteger32 = 0x1003
    PtypMultipleFloating32 = 0x1004
    PtypMultipleFloating64 = 0x1005
    PtypMultipleCurrency = 0x1006
    PtypMultipleFloatingTime = 0x1007
    PtypMultipleInteger64 = 0x1014
    PtypMultipleString = 0x101F
    PtypMultipleString8 = 0x101E
    PtypMultipleTime = 0x1040
    PtypMultipleGuid = 0x1048
    PtypMultipleBinary = 0x1102
    PtypUnspecified = 0x0
    PtypNull = 0x01
    PtypObject = 0x0D



class PType:

    def __init__(self, ptype, byte_count, is_variable, is_multi):

        self.ptype, self.byte_count, self.is_variable, self.is_multi = ptype, byte_count, is_variable, is_multi

    def value(self, bytes):

        if self.ptype ==  PTypeEnum.PtypInteger16:
            return struct.unpack('h', bytes)[0]
        elif self.ptype == PTypeEnum.PtypInteger32:
            return struct.unpack('i', bytes)[0]
        elif self.ptype == PTypeEnum.PtypFloating32:
            return struct.unpack('f', bytes)[0]
        elif self.ptype == PTypeEnum.PtypFloating64:
            return struct.unpack('d', bytes)[0]
        elif self.ptype == PTypeEnum.PtypCurrency:
            return None
#            raise PSTException('PtypCurrency value not implemented')
        elif self.ptype == PTypeEnum.PtypFloatingTime:
            return self.get_floating_time(bytes)
        elif self.ptype == PTypeEnum.PtypErrorCode:
            return struct.unpack('I', bytes)[0]
        elif self.ptype == PTypeEnum.PtypBoolean:
            return (struct.unpack('B', bytes)[0] != 0)
        elif self.ptype == PTypeEnum.PtypInteger64:
            return struct.unpack('q', bytes)[0]
        elif self.ptype == PTypeEnum.PtypString:
            try:
                return bytes.decode('utf-16-le') # unicode
            except UnicodeDecodeError:
                log_error(PSTException('String property not correctly utf-16-le encoded, ignoring errors'))
                return bytes.decode('utf-16-le', errors='ignore') # unicode
        elif self.ptype == PTypeEnum.PtypString8:
            return bytes
        elif self.ptype == PTypeEnum.PtypTime:
            return self.get_time(bytes)
        elif self.ptype == PTypeEnum.PtypGuid:
            return bytes
        elif self.ptype == PTypeEnum.PtypServerId:
            return None
#            raise PSTException('PtypServerId value not implemented')
        elif self.ptype == PTypeEnum.PtypRestriction:
            return None
#            raise PSTException('PtypRestriction value not implemented')
        elif self.ptype == PTypeEnum.PtypRuleAction:
            return None
#            raise PSTException('PtypRuleAction value not implemented')
        elif self.ptype == PTypeEnum.PtypBinary:
            #count = struct.unpack('H', bytes[:2])[0]
            return bytes
        elif self.ptype == PTypeEnum.PtypMultipleInteger16:
            count = len(bytes) // 2
            return [struct.unpack('h', bytes[i*2:(i+1)*2])[0] for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleInteger32:
            count = len(bytes) // 4
            return [struct.unpack('i', bytes[i*4:(i+1)*4])[0] for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleFloating32:
            count = len(bytes) // 4
            return [struct.unpack('f', bytes[i*4:(i+1)*4])[0] for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleFloating64:
            ccount = len(bytes) // 8
            return [struct.unpack('d', bytes[i*8:(i+1)*8])[0] for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleCurrency:
            return None
#            raise PSTException('PtypMultipleCurrency value not implemented')
        elif self.ptype == PTypeEnum.PtypMultipleFloatingTime:
            count = len(bytes) // 8
            return [self.get_floating_time(bytes[i*8:(i+1)*8]) for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleInteger64:
            count = len(bytes) // 8
            return [struct.unpack('q', bytes[i*8:(i+1)*8])[0] for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleString:
            ulCount, rgulDataOffsets = self.get_multi_value_offsets(bytes)
            s = []
            for i in range(ulCount):
                s.append(bytes[rgulDataOffsets[i]:rgulDataOffsets[i+1]].decode('utf-16-le'))
            return s
        elif self.ptype == PTypeEnum.PtypMultipleString8:
            ulCount, rgulDataOffsets = self.get_multi_value_offsets(bytes)
            datas = []
            for i in range(ulCount):
                datas.append(bytes[rgulDataOffsets[i]:rgulDataOffsets[i+1]])
            return datas
        elif self.ptype == PTypeEnum.PtypMultipleTime:
            count = len(bytes) // 8
            return [self.get_time(bytes[i*8:(i+1)*8]) for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleGuid:
            count = len(bytes) // 16
            return [bytes[i*16:(i+1)*16] for i in range(count)]
        elif self.ptype == PTypeEnum.PtypMultipleBinary:
            ulCount, rgulDataOffsets = self.get_multi_value_offsets(bytes)
            datas = []
            for i in range(ulCount):
                datas.append(bytes[rgulDataOffsets[i]:rgulDataOffsets[i+1]])
            return datas
        elif self.ptype == PTypeEnum.PtypUnspecified:
            return bytes
        elif self.ptype == PTypeEnum.PtypNull:
            return None
        elif self.ptype == PTypeEnum.PtypObject:
            return bytes[:4]
        else:
            raise PSTException('Invalid PTypeEnum for value %s ' % self.ptype)


    def get_floating_time(self, bytes):

        return struct.unpack('d', bytes)[0]


    def get_time(self, bytes):

        return struct.unpack('q', bytes)[0]


    def get_multi_value_offsets(self, bytes):

        ulCount = struct.unpack('I', bytes[:4])[0]
        rgulDataOffsets = [struct.unpack('I', bytes[(i+1)*4:(i+2)*4])[0] for i in range(ulCount)]
        rgulDataOffsets.append(len(bytes))
        return ulCount, rgulDataOffsets



class PropIdEnum:

    PidTagNameidBucketCount = 0x0001
    PidTagNameidStreamGuid = 0x0002
    PidTagNameidStreamEntry = 0x0003
    PidTagNameidStreamString = 0x0004
    PidTagNameidBucketBase = 0x1000
    PidTagItemTemporaryFlags = 0x1097
    PidTagPstBestBodyProptag = 0x661D
    PidTagPstIpmsubTreeDescendant = 0x6705
    PidTagPstSubTreeContainer = 0x6772
    PidTagLtpParentNid = 0x67F1
    PidTagLtpRowId = 0x67F2
    PidTagLtpRowVer = 0x67F3
    PidTagPstPassword = 0x67FF
    PidTagMapiFormComposeCommand = 0x682F
    PidTagRecordKey = 0x0FF9
    PidTagDisplayName = 0x3001
    PidTagIpmSubTreeEntryId = 0x35E0
    PidTagIpmWastebasketEntryId = 0x35E3
    PidTagFinderEntryId = 0x35E7
    PidTagContentCount = 0x3602
    PidTagContentUnreadCount = 0x3603
    PidTagSubfolders = 0x360A
    PidTagReplItemid = 0x0E30
    PidTagReplChangenum = 0x0E33
    PidTagReplVersionHistory = 0x0E34
    PidTagReplFlags = 0x0E38
    PidTagContainerClass = 0x3613
    PidTagPstHiddenCount = 0x6635
    PidTagPstHiddenUnread = 0x6636
    PidTagImportance = 0x0017
    PidTagMessageClassW = 0x001A
    PidTagSensitivity = 0x0036
    PidTagSubjectW = 0x0037
    PidTagClientSubmitTime = 0x0039
    PidTagSentRepresentingSearchKey = 0x003B
    PidTagSentRepresentingNameW = 0x0042
    PidTagMessageToMe = 0x0057
    PidTagMessageCcMe = 0x0058
    PidTagConversationTopicW = 0x0070
    PidTagConversationIndex = 0x0071
    PidTagDisplayCcW = 0x0E03
    PidTagDisplayToW = 0x0E04
    PidTagMessageDeliveryTime = 0x0E06
    PidTagMessageFlags = 0x0E07
    PidTagMessageSize = 0x0E08
    PidTagMessageStatus = 0x0E17
    PidTagReplCopiedfromVersionhistory = 0x0E3C
    PidTagReplCopiedfromItemid = 0x0E3D
    PidTagLastModificationTime = 0x3008
    PidTagSmtpAddress = 0x39FE
    PidTagSecureSubmitFlags = 0x65C6
    PidTagOfflineAddressBookName = 0x6800
    PidTagSendOutlookRecallReport = 0x6803
    PidTagOfflineAddressBookTruncatedProperties = 0x6805
    PidTagMapiFormComposeCommand = 0x682F
    PidTagViewDescriptorFlags = 0x7003
    PidTagViewDescriptorLinkTo = 0x7004
    PidTagViewDescriptorViewFolder = 0x7005
    PidTagViewDescriptorName = 0x7006
    PidTagViewDescriptorVersion = 0x7007
    PidTagCreationTime = 0x3007
    PidTagSearchKey = 0x300B
    PidTagRecipientType = 0x0c15
    PidTagResponsibility = 0x0E0F
    PidTagObjectType = 0x0FFE
    PidTagEntryID = 0x0FFF
    PidTagAddressType = 0x3002
    PidTagEmailAddress = 0x3003
    PidTagDisplayType = 0x3900
    PidTag7BitDisplayName = 0x39FF
    PidTagSendRichInfo = 0x3A40
    PidTagAttachmentSize = 0x0E20
    PidTagAttachFilename = 0x3704
    PidTagAttachMethod = 0x3705
    PidTagRenderingPosition = 0x370B
    PidTagSenderEntryId = 0x0C19
    PidTagSenderName = 0x0C1A
    PidTagSenderSearchKey = 0x0C1D
    PidTagSenderAddressType = 0x0C1E
    PidTagRead = 0x0E69
    PidTagHasAttachments = 0x0E1B
    PidTagBody = 0x1000
    PidTagRtfCompressed = 0x1009
    PidTagAttachDataBinary = 0x3701
    PidTagAttachDataObject = 0x3701
    PidTagOriginalDisplayTo = 0x0074
    PidTagTransportMessageHeaders = 0x007D
    PidTagSenderSmtpAddress = 0x5D01
    PidTagSentRepresentingSmtpAddress = 0x5D02
    PidTagReceivedBySmtpAddress = 0x5D07
    PidTagReceivedRepresentingSmtpAddress = 0x5D08
    PidTagAttachMimeTag = 0x370E
    PidTagAttachExtension = 0x3703
    PidTagAttachLongFilename = 0x3707



class PC: # Property Context

    def __init__(self, hn):

        self.hn = hn
        if hn.bClientSig != HN.bTypePC:
            raise PSTException('Invalid HN bClientSig, not bTypePC, is %s' % hn.bClientSig)
        self.bth = BTH(hn, hn.hidUserRoot)
        if self.bth.cbKey != 2:
            raise PSTException('Invalid PC BTH key size: %s' % self.bth.cbKey)
        if self.bth.cbEnt != 6:
            raise PSTException('Invalid PC BTH data size: %s' % self.bth.cbEnt)
        self.props = {}
        for bth_data in self.bth.bth_datas:
            pc_prop = PCBTHData(bth_data, hn)
            if pc_prop.wPropId in (PropIdEnum.PidTagFinderEntryId, PropIdEnum.PidTagIpmSubTreeEntryId, PropIdEnum.PidTagIpmWastebasketEntryId, PropIdEnum.PidTagEntryID):
                pc_prop.value = EntryID(pc_prop.value)
            self.props[pc_prop.wPropId] = pc_prop


    def getval(self, propid):

        if propid in self.props.keys():
            return self.props[propid].value
        else:
            return None


    def __repr__(self):

        s = 'PC %s\n' % self.hn
        s += '\n'.join(['Property %s' % self.props[wPropId] for wPropId in sorted(self.props.keys())])
        return s



class TCOLDESC:

    def __init__(self, bytes):

        #self.tag is 4 byte (self.wPropId, self.wPropType): where is documentation MS?
        self.wPropType, self.wPropId, self.ibData, self.cbData, self.iBit = struct.unpack('HHHBB', bytes)

    def __repr__(self):

        return 'Tag: %s/%s, Offset+Size: %s+%s' % (hex(self.wPropId), hex(self.wPropType), self.ibData, self.cbData)



class TCROWID:

    def __init__(self, bth_data):

        self.dwRowID = struct.unpack('I', bth_data.key)[0] # dwRowID
        self.nid = NID(bth_data.key) # for hierarchy TCs
        if len(bth_data.data) == 2: # ansi
            self.dwRowIndex = struct.unpack('H', bth_data.data)[0]
        else: # unicode (4)
            self.dwRowIndex = struct.unpack('I', bth_data.data)[0]



class TC: # Table Context

    TCI_4b = 0
    TCI_2b = 1
    TCI_1b = 2
    TCI_bm = 3

    def __init__(self, hn):

        self.hn = hn
        if hn.bClientSig != HN.bTypeTC:
            raise PSTException('Invalid HN bClientSig, not bTypeTC, is %s' % hn.bClientSig)
        tcinfo_bytes = hn.get_hid_data(hn.hidUserRoot)
        self.bType, self.cCols = struct.unpack('BB', tcinfo_bytes[:2])
        if self.bType != HN.bTypeTC:
            raise PSTException('Invalid TCINFO bType, not bTypeTC, is %s' % self.bType)
        self.rgib = struct.unpack('HHHH', tcinfo_bytes[2:10])
        self.hidRowIndex, self.hnidRows, self.hidIndex = struct.unpack('4s4s4s', tcinfo_bytes[10:22])
        self.hidRowIndex = HID(self.hidRowIndex)
        if NID(self.hnidRows).nidType == NID.NID_TYPE_HID:
            self.hnidRows = HID(self.hnidRows)
        else:
            self.hnidRows = NID(self.hnidRows)
        self.rgTCOLDESC = []
        for i in range(self.cCols):
            self.rgTCOLDESC.append(TCOLDESC(tcinfo_bytes[22+i*8:22+(i+1)*8]))

        self.setup_row_index()
        self.setup_row_matrix()


    def setup_row_index(self):

        self.RowIndex = {} # key is dwRowID, value is dwRowIndex
        if not (self.hnidRows.is_hid and self.hnidRows.hidIndex == 0):
            row_index_bth = BTH(self.hn, self.hidRowIndex)
            if row_index_bth.cbKey != 4:
                raise PSTException('Invalid TC RowIndex key size %s' % row_index_bth.cbKey)
            for bth_data in row_index_bth.bth_datas:
                tcrowid = TCROWID(bth_data)
                self.RowIndex[tcrowid.dwRowIndex] = tcrowid


    def setup_row_matrix(self):

        self.RowMatrix = {}
        if self.RowIndex:
            if self.hn.ltp.nbd.header.is_ansi:
                size_BlockTrailer = 12
            else: # unicode
                size_BlockTrailer = 16
            row_size = self.rgib[TC.TCI_bm]
            RowsPerBlock = int(math.floor((8192.0 - size_BlockTrailer) / row_size))
            if self.hnidRows.is_hid:
                row_matrix_datas = [self.hn.get_hid_data(self.hnidRows)] # block data list
            else:
                if self.hnidRows.nid in self.hn.subnodes.keys():
                    subnode_nid_bid = self.hn.subnodes[self.hnidRows.nid].bidData
                else:
                    raise PSTException('Row Matrix HNID not in Subnodes: %s' % self.hnidRows.nid)
                row_matrix_datas = self.hn.ltp.nbd.fetch_all_block_data(subnode_nid_bid)

            for irow in range(len(self.RowIndex)):
                BlockIndex = irow // RowsPerBlock
                RowIndex = irow % RowsPerBlock
                row_bytes = row_matrix_datas[BlockIndex][RowIndex * row_size:(RowIndex+1) * row_size]
                dwRowID = struct.unpack('I', row_bytes[:4])[0]
                rgbCEB = row_bytes[self.rgib[TC.TCI_1b]:]
                #row_datas = []
                rowvals = {}
                for tcoldesc in self.rgTCOLDESC:
                    is_fCEB = ((to_byte(rgbCEB[tcoldesc.iBit // 8]) & (1 << (7 - (tcoldesc.iBit % 8)))) != 0)
                    if is_fCEB:
                        data_bytes = row_bytes[tcoldesc.ibData:tcoldesc.ibData+tcoldesc.cbData]
                    else:
                        data_bytes = None
                    #row_datas.append(self.get_row_cell_value(data_bytes, tcoldesc))
                    if tcoldesc.wPropId in rowvals.keys():
                        raise PSTException('Property ID %s already in row data' % hex(tcoldesc.wPropId))
                    rowvals[tcoldesc.wPropId] = self.get_row_cell_value(data_bytes, tcoldesc)
                self.RowMatrix[dwRowID] = rowvals #row_datas


    def get_row_cell_value(self, data_bytes, tcoldesc):

        if data_bytes is None:
            return None
        else:
            ptype = self.hn.ltp.ptypes[tcoldesc.wPropType]

            if not ptype.is_variable and not ptype.is_multi:
               if ptype.byte_count <= 8:
                   return ptype.value(data_bytes)
               else:
                   hid = HID(data_bytes)
                   return ptype.value(self.hn.get_hid_data(hid))
            else:
                if NID(data_bytes).nidType == NID.NID_TYPE_HID:
                    hid = HID(data_bytes)
                    return ptype.value(self.hn.get_hid_data(hid))
                else:
                    subnode_nid = NID(data_bytes)
                    if subnode_nid.nid in self.hn.subnodes.keys():
                        subnode_nid_bid = self.hn.subnodes[subnode_nid.nid].bidData
                    else:
                        raise PSTException('Row Matrix Value HNID Subnode invalid: %s' % subnode_nid)
                    datas = self.hn.ltp.nbd.fetch_all_block_data(subnode_nid_bid)
                    return ptype.value(b''.join(datas))


    def get_row_ID(self, RowIndex):

        return self.RowIndex[RowIndex].dwRowID


    def getval(self, RowIndex, wPropId):

        dwRowID = self.get_row_ID(RowIndex)
        rowvals = self.RowMatrix[dwRowID]
        if wPropId in rowvals.keys():
            return rowvals[wPropId]
        else:
            return None


    def __repr__(self):

        s = 'TC Rows: %s, %s\n' % (len(self.RowIndex), self.hn)
        s += 'Columns: ' + ''.join([' %s' % tcoldesc for tcoldesc in self.rgTCOLDESC])
        s += '\nData:\n' + '\n'.join(['%s: %s' % (hex(dwRowID), rowvals) for dwRowID,rowvals in self.RowMatrix.items()])
        return s



class LTP:
    """LTP layer"""

    def __init__(self, nbd):

        self.nbd = nbd

        self.ptypes = {
            PTypeEnum.PtypInteger16:PType(PTypeEnum.PtypInteger16, 2, False, False),
            PTypeEnum.PtypInteger32:PType(PTypeEnum.PtypInteger32, 4, False, False),
            PTypeEnum.PtypFloating32:PType(PTypeEnum.PtypFloating32, 4, False, False),
            PTypeEnum.PtypFloating64:PType(PTypeEnum.PtypFloating64, 8, False, False),
            PTypeEnum.PtypCurrency:PType(PTypeEnum.PtypCurrency, 8, False, False),
            PTypeEnum.PtypFloatingTime:PType(PTypeEnum.PtypFloatingTime, 8, False, False),
            PTypeEnum.PtypErrorCode:PType(PTypeEnum.PtypErrorCode, 4, False, False),
            PTypeEnum.PtypBoolean:PType(PTypeEnum.PtypBoolean, 1, False, False),
            PTypeEnum.PtypInteger64:PType(PTypeEnum.PtypInteger64, 8, False, False),
            PTypeEnum.PtypString:PType(PTypeEnum.PtypString, 0, True, False),
            PTypeEnum.PtypString8:PType(PTypeEnum.PtypString8, 0, True, False),
            PTypeEnum.PtypTime:PType(PTypeEnum.PtypTime, 8, False, False),
            PTypeEnum.PtypGuid:PType(PTypeEnum.PtypGuid, 16, False, False),
            PTypeEnum.PtypServerId:PType(PTypeEnum.PtypServerId, 2, False, True),
            PTypeEnum.PtypRestriction:PType(PTypeEnum.PtypRestriction, 0, True, False),
            PTypeEnum.PtypRuleAction:PType(PTypeEnum.PtypRuleAction, 2, False, True),
            PTypeEnum.PtypBinary:PType(PTypeEnum.PtypBinary, 2, False, True),
            PTypeEnum.PtypMultipleInteger16:PType(PTypeEnum.PtypMultipleInteger16, 2, False, True),
            PTypeEnum.PtypMultipleInteger32:PType(PTypeEnum.PtypMultipleInteger32, 2, False, True),
            PTypeEnum.PtypMultipleFloating32:PType(PTypeEnum.PtypMultipleFloating32, 2, False, True),
            PTypeEnum.PtypMultipleFloating64:PType(PTypeEnum.PtypMultipleFloating64, 2, False, True),
            PTypeEnum.PtypMultipleCurrency:PType(PTypeEnum.PtypMultipleCurrency, 2, False, True),
            PTypeEnum.PtypMultipleFloatingTime:PType(PTypeEnum.PtypMultipleFloatingTime, 2, False, True),
            PTypeEnum.PtypMultipleInteger64:PType(PTypeEnum.PtypMultipleInteger64, 2, False, True),
            PTypeEnum.PtypMultipleString:PType(PTypeEnum.PtypMultipleString, 2, True, True),
            PTypeEnum.PtypMultipleString8:PType(PTypeEnum.PtypMultipleString8, 2, True, True),
            PTypeEnum.PtypMultipleTime:PType(PTypeEnum.PtypMultipleTime, 2, False, True),
            PTypeEnum.PtypMultipleGuid:PType(PTypeEnum.PtypMultipleGuid, 2, False, True),
            PTypeEnum.PtypMultipleBinary:PType(PTypeEnum.PtypMultipleBinary, 2, False, True),
            PTypeEnum.PtypUnspecified:PType(PTypeEnum.PtypUnspecified, 0, False, False),
            PTypeEnum.PtypNull:PType(PTypeEnum.PtypNull, 0, False, False),
            PTypeEnum.PtypObject:PType(PTypeEnum.PtypObject, 4, False, True)
        }


    def get_pc_by_nid(self, nid):

        nbt_entry = self.nbd.nbt_entries[nid.nid]
        datas = self.nbd.fetch_all_block_data(nbt_entry.bidData)
        hn = HN(nbt_entry, self, datas)
        return PC(hn)


    def get_pc_by_slentry(self, slentry):

        datas = self.nbd.fetch_all_block_data(slentry.bidData)
        hn = HN(slentry, self, datas)
        return PC(hn)


    def get_tc_by_nid(self, nid):

        nbt_entry = self.nbd.nbt_entries[nid.nid]
        datas = self.nbd.fetch_all_block_data(nbt_entry.bidData)
        hn = HN(nbt_entry, self, datas)
        return TC(hn)


    def get_tc_by_slentry(self, slentry):

        datas = self.nbd.fetch_all_block_data(slentry.bidData)
        hn = HN(slentry, self, datas)
        return TC(hn)


    def strip_SubjectPrefix(self, Subject):

        if Subject and ord(Subject[:1]) == 0x01:
            #prefix_length = ord(Subject[1:2])
            #return Subject[prefix_length+1:]
            return Subject[2:]
        else:
            return Subject



#############################################################################################################################
#  __  __                           _               _
# |  \/  | ___  ___ ___  __ _  __ _(_)_ __   __ _  | |    __ _ _   _  ___ _ __
# | |\/| |/ _ \/ __/ __|/ _` |/ _` | | '_ \ / _` | | |   / _` | | | |/ _ \ '__|
# | |  | |  __/\__ \__ \ (_| | (_| | | | | | (_| | | |__| (_| | |_| |  __/ |
# |_|  |_|\___||___/___/\__,_|\__, |_|_| |_|\__, | |_____\__,_|\__, |\___|_|
#                             |___/         |___/              |___/
#############################################################################################################################


class EntryID:

    def __init__(self, bytes):

        self.rgbFlags, self.uid, self.nid = struct.unpack('4s16s4s', bytes)
        self.nid = NID(self.nid)

    def __repr__(self):

        return 'EntryID %s' % self.nid



class SubFolder:

    def __init__(self, nid, name, parent_path):

        self.nid = nid
        self.name = name
        self.parent_path = parent_path

    def __repr__(self):

        return '%s (%s)' % (self.name, self.nid)



class SubMessage:

    def __init__(self, nid, SentRepresentingName, Subject, ClientSubmitTime):

        self.nid = nid
        self.SentRepresentingName = SentRepresentingName
        self.Subject = Subject
        self.ClientSubmitTime = ClientSubmitTime

    def __repr__(self):

        return '%s (%s)' % (self.Subject, self.nid)



class Folder:

    def __init__(self, nid, ltp, parent_path='', messaging=None):

        if nid.nidType != NID.NID_TYPE_NORMAL_FOLDER:
            raise PSTException('Invalid Folder NID Type: %s' % nid.nidType)
        self.pc = ltp.get_pc_by_nid(nid)
        self.DisplayName = self.pc.getval(PropIdEnum.PidTagDisplayName)
        self.path = parent_path+'/'+self.DisplayName.replace('/', '\\/')

        #print('FOLDER DEBUG', self.DisplayName, self.pc)

        # entryids in PST are stored as nids
        if messaging:
            self.EntryId = 4*b'\x00' + messaging.store_record_key + struct.pack('I', nid.nid)

        self.ContentCount = self.pc.getval(PropIdEnum.PidTagContentCount)
        self.ContainerClass = self.pc.getval(PropIdEnum.PidTagContainerClass)
        self.HasSubfolders = self.pc.getval(PropIdEnum.PidTagSubfolders)

        nid_hierachy = NID(nid.nidIndex | NID.NID_TYPE_HIERARCHY_TABLE)
        nid_contents = NID(nid.nidIndex | NID.NID_TYPE_CONTENTS_TABLE)
        nid_fai = NID(nid.nidIndex | NID.NID_TYPE_ASSOC_CONTENTS_TABLE) # FAI = Folder Associated Information

        try:
            self.tc_hierachy = None
            self.subfolders = []
            self.tc_hierachy = ltp.get_tc_by_nid(nid_hierachy)
            self.subfolders = [SubFolder(self.tc_hierachy.RowIndex[RowIndex].nid, self.tc_hierachy.getval(RowIndex,PropIdEnum.PidTagDisplayName), self.path) for RowIndex in range(len(self.tc_hierachy.RowIndex))]
        except PSTException as e:
            log_error(e)

        try:
            self.tc_contents = None
            self.submessages = []
            self.tc_contents = ltp.get_tc_by_nid(nid_contents)
            self.submessages = [SubMessage(self.tc_contents.RowIndex[RowIndex].nid, \
                    self.tc_contents.getval(RowIndex,PropIdEnum.PidTagSentRepresentingNameW), ltp.strip_SubjectPrefix(self.tc_contents.getval(RowIndex,PropIdEnum.PidTagSubjectW)), \
                    self.tc_contents.getval(RowIndex,PropIdEnum.PidTagClientSubmitTime)) \
                    for RowIndex in range(len(self.tc_contents.RowIndex)) if RowIndex in self.tc_contents.RowIndex.keys()]
        except PSTException as e:
            log_error(e)

        try:
            self.tc_fai = None
            self.tc_fai = ltp.get_tc_by_nid(nid_fai)
        except PSTException as e:
            log_error(e)


    def __repr__(self):

        return 'Folder: %s, %s items, messages: %s, subfolders: %s' % (self.DisplayName, len(self.submessages), self.subfolders)



class SubAttachment:

    def __init__(self, nid, AttachmentSize, AttachFilename, AttachLongFilename):

        self.nid, self.AttachmentSize, self.AttachFilename, self.AttachLongFilename = nid, AttachmentSize, AttachFilename, AttachLongFilename
        if self.AttachLongFilename:
            self.Filename = self.AttachLongFilename
        else:
            self.Filename = self.AttachFilename
        if self.Filename:
            self.Filename = os.path.basename(self.Filename)
        else:
            self.Filename = '[None]'

    def __repr__(self):

        return '%s (%s)' % (self.Filename, size_friendly(self.AttachmentSize))



class SubRecipient:

    def __init__(self, RecipientType, DisplayName, ObjectType, AddressType, EmailAddress, DisplayType, EntryID, SmtpAddress):

        self.RecipientType, self.DisplayName, self.ObjectType, self.AddressType, self.EmailAddress, self.DisplayType, self.EntryID, self.SmtpAddress = RecipientType, DisplayName, ObjectType, AddressType, EmailAddress, DisplayType, EntryID, SmtpAddress


    def __repr__(self):

        return '%s (%s)' % (self.DisplayName, self.EmailAddress)


class Message:

    mfRead = 0x01
    mfUnsent = 0x08
    mfUnmodified = 0x02
    mfHasAttach = 0x10
    mfFromMe = 0x20
    mfFAI = 0x40
    mfNotifyRead = 0x100
    mfNotifyUnread = 0x200
    mfInternet = 0x2000

    afByValue = 0x01
    afEmbeddedMessage = 0x05
    afStorage = 0x06


    def __init__(self, nid, ltp, nbd=None, parent_message=None, messaging=None):

        self.ltp = ltp

        if parent_message:
            subnode = parent_message.pc.hn.subnodes[nid]
            datas = nbd.fetch_all_block_data(subnode.bidData)
            hn = HN(subnode, ltp, datas)
            self.pc = PC(hn)
        else:
            if nid.nidType != NID.NID_TYPE_NORMAL_MESSAGE:
                raise PSTException('Invalid Message NID Type: %s' % nid_pc.nidType)
            self.pc = ltp.get_pc_by_nid(nid)

        # entryids in PST are stored as nids
        if messaging:
            self.EntryId = 4*b'\x00' + messaging.store_record_key + struct.pack('I', nid.nid)

        self.MessageClass = self.pc.getval(PropIdEnum.PidTagMessageClassW)
        self.Subject = ltp.strip_SubjectPrefix(self.pc.getval(PropIdEnum.PidTagSubjectW))
        self.ClientSubmitTime = self.pc.getval(PropIdEnum.PidTagClientSubmitTime)
        self.SentRepresentingName = self.pc.getval(PropIdEnum.PidTagSentRepresentingNameW)
        self.SenderName = self.pc.getval(PropIdEnum.PidTagSenderName)
        self.SenderSmtpAddress = self.pc.getval(PropIdEnum.PidTagSenderSmtpAddress)
        self.MessageDeliveryTime = self.pc.getval(PropIdEnum.PidTagMessageDeliveryTime)
        self.MessageFlags = self.pc.getval(PropIdEnum.PidTagMessageFlags)
        self.MessageStatus = self.pc.getval(PropIdEnum.PidTagMessageStatus)
        self.HasAttachments  = (self.MessageFlags & Message.mfHasAttach == Message.mfHasAttach)
        self.MessageSize = self.pc.getval(PropIdEnum.PidTagMessageSize)
        self.Body = self.pc.getval(PropIdEnum.PidTagBody)
        self.Read = (self.MessageFlags & Message.mfRead == Message.mfRead)
        self.TransportMessageHeaders = self.pc.getval(PropIdEnum.PidTagTransportMessageHeaders)
        self.DisplayTo = self.pc.getval(PropIdEnum.PidTagDisplayToW)
        self.XOriginatingIP =  self.pc.getval(0x8028) # x-originating-ip

        self.tc_attachments = None
        self.tc_recipients = None
        if self.pc.hn.subnodes:
            for subnode in self.pc.hn.subnodes.values(): #SLENTRYs
                if subnode.nid.nidType == NID.NID_TYPE_ATTACHMENT_TABLE:
                    self.tc_attachments = self.ltp.get_tc_by_slentry(subnode)
                elif subnode.nid.nidType == NID.NID_TYPE_RECIPIENT_TABLE:
                    self.tc_recipients = ltp.get_tc_by_slentry(subnode)

        self.subattachments = []
        if self.tc_attachments:
            self.subattachments = [SubAttachment(self.tc_attachments.RowIndex[RowIndex].nid, self.tc_attachments.getval(RowIndex,PropIdEnum.PidTagAttachmentSize), \
                    self.tc_attachments.getval(RowIndex,PropIdEnum.PidTagAttachFilename), self.tc_attachments.getval(RowIndex,PropIdEnum.PidTagAttachLongFilename)) for RowIndex in range(len(self.tc_attachments.RowIndex))]

        self.subrecipients = []
        if self.tc_recipients:
            self.subrecipients = [SubRecipient(self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagRecipientType), self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagDisplayName), \
                    self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagObjectType), self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagAddressType), \
                    self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagEmailAddress), self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagDisplayType), self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagEntryID),
                    self.tc_recipients.getval(RowIndex,PropIdEnum.PidTagSmtpAddress)) for RowIndex in range(len(self.tc_recipients.RowIndex))]


    def get_attachment(self, subattachment):
        """ fetch attachment on demand, not when Message instanced"""

        return Attachment(self.ltp, self.pc.hn.subnodes[subattachment.nid.nid])


    def get_all_properties(self):

        return self.pc.__repr__()


    def __repr__(self):

        attachments = ', '.join(['%s' % subattachment for subattachment in self.subattachments])
        return 'Message: %s, From: %s, %s, Size: %s, Attachments: %s' % (repr(self.Subject), repr(self.SentRepresentingName), self.ClientSubmitTime, size_friendly(self.MessageSize), attachments)



class Attachment:

    def __init__(self, ltp, slentry):

        self.ltp = ltp
        self.slentry = slentry
        self.pc = self.ltp.get_pc_by_slentry(slentry)

        self.DisplayName = self.pc.getval(PropIdEnum.PidTagDisplayName)
        self.AttachMethod = self.pc.getval(PropIdEnum.PidTagAttachMethod)
        self.AttachmentSize = self.pc.getval(PropIdEnum.PidTagAttachmentSize)
        self.AttachFilename = self.pc.getval(PropIdEnum.PidTagAttachFilename) # 8.3 short name
        self.AttachLongFilename = self.pc.getval(PropIdEnum.PidTagAttachLongFilename)
        if self.AttachLongFilename:
            self.Filename = self.AttachLongFilename
        else:
            self.Filename = self.AttachFilename
        if self.Filename:
            self.Filename = os.path.basename(self.Filename)
        else:
            self.Filename = '[NoFilename_Method%s]' % self.AttachMethod

        if self.AttachMethod == Message.afByValue:
            self.data = self.pc.getval(PropIdEnum.PidTagAttachDataBinary)
        else:
            self.data = self.pc.getval(PropIdEnum.PidTagAttachDataObject)
            #raise PSTException('Unsupported Attachment Method %s' % self.AttachMethod)
        self.AttachMimeTag = self.pc.getval(PropIdEnum.PidTagAttachMimeTag)
        self.AttachExtension = self.pc.getval(PropIdEnum.PidTagAttachExtension)


    def get_all_properties(self):

        return self.pc.__repr__()



class NAMEID:

    def __init__(self, bytes):

        self.dwPropertyID, self.wGuid, self.wPropIdx  = struct.unpack('IHH', bytes)
        self.N = self.wGuid & 0x01
        self.wGuid = self.wGuid >> 1
        self.NPID = self.wPropIdx + 0x8000



class Messaging:
    """Messaging Layer"""

    def __init__(self, ltp):

        self.ltp = ltp
        self.set_message_store()
        try:
            self.set_name_to_id_map()
        except PSTException as e:
            log_error(e)


    def set_message_store(self):

        self.message_store = self.ltp.get_pc_by_nid(NID(NID.NID_MESSAGE_STORE))
        self.store_record_key = self.message_store.getval(PropIdEnum.PidTagRecordKey)

        if PropIdEnum.PidTagPstPassword in self.message_store.props.keys():
            self.PasswordCRC32Hash = struct.unpack('I', struct.pack('i', self.message_store.getval(PropIdEnum.PidTagPstPassword)))[0]
        else:
            self.PasswordCRC32Hash = None
        self.root_entryid = self.message_store.getval(PropIdEnum.PidTagIpmSubTreeEntryId)
        self.deleted_items_entryid = self.message_store.getval(PropIdEnum.PidTagIpmWastebasketEntryId)


    def set_name_to_id_map(self):

        self.nameid_entries = []
        self.pc_name_to_id_map = self.ltp.get_pc_by_nid(NID(NID.NID_NAME_TO_ID_MAP))

        nameid_entrystream = self.pc_name_to_id_map.getval(PropIdEnum.PidTagNameidStreamEntry)
        self.nameid_entries = [NAMEID(nameid_entrystream[i*8:(i+1)*8]) for i in range(len(nameid_entrystream)//8)]
        nameid_stringstream = self.pc_name_to_id_map.getval(PropIdEnum.PidTagNameidStreamString)
        nameid_guidstream = self.pc_name_to_id_map.getval(PropIdEnum.PidTagNameidStreamGuid)
        for nameid in self.nameid_entries:
            if nameid.N == 1:
                name_len = struct.unpack('I', nameid_stringstream[nameid.dwPropertyID:nameid.dwPropertyID+4])[0]
                nameid.name = nameid_stringstream[nameid.dwPropertyID+4:nameid.dwPropertyID+4+name_len].decode('utf-16-le') # unicode
            if nameid.wGuid == 0:
                nameid.guid = None
            elif nameid.wGuid == 1: # PS_MAPI
                nameid.guid = b'(\x03\x02\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00F'
            elif nameid.wGuid == 2: # PS_PUBLIC_STRINGS
                nameid.guid = b')\x03\x02\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00F'
            else:
                nameid.guid = nameid_guidstream[16*(nameid.wGuid-3):16*(nameid.wGuid-2)]


    def get_folder(self, entryid, parent_path=''):

        return Folder(entryid.nid, self.ltp, parent_path, self)


    def get_named_properties(self):

        return '\n'.join(['%s = %s' % (hex(nameid.NPID), repr(nameid.name)) for nameid in self.nameid_entries if nameid.N==1])


#############################################################################################################################
#  ____  ____ _____   _
# |  _ \/ ___|_   _| | |    __ _ _   _  ___ _ __
# | |_) \___ \ | |   | |   / _` | | | |/ _ \ '__|
# |  __/ ___) || |   | |__| (_| | |_| |  __/ |
# |_|   |____/ |_|   |_____\__,_|\__, |\___|_|
#                                |___/
#############################################################################################################################


class CRC:

    CrcTableOffset32 = (0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
                        0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
                        0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
                        0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
                        0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
                        0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
                        0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
                        0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
                        0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
                        0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
                        0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
                        0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
                        0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
                        0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
                        0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
                        0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
                        0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
                        0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
                        0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
                        0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
                        0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
                        0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
                        0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
                        0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
                        0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
                        0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
                        0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
                        0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
                        0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
                        0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
                        0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
                        0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D)

    CrcTableOffset40 = (0x00000000, 0x191B3141, 0x32366282, 0x2B2D53C3, 0x646CC504, 0x7D77F445, 0x565AA786, 0x4F4196C7,
                        0xC8D98A08, 0xD1C2BB49, 0xFAEFE88A, 0xE3F4D9CB, 0xACB54F0C, 0xB5AE7E4D, 0x9E832D8E, 0x87981CCF,
                        0x4AC21251, 0x53D92310, 0x78F470D3, 0x61EF4192, 0x2EAED755, 0x37B5E614, 0x1C98B5D7, 0x05838496,
                        0x821B9859, 0x9B00A918, 0xB02DFADB, 0xA936CB9A, 0xE6775D5D, 0xFF6C6C1C, 0xD4413FDF, 0xCD5A0E9E,
                        0x958424A2, 0x8C9F15E3, 0xA7B24620, 0xBEA97761, 0xF1E8E1A6, 0xE8F3D0E7, 0xC3DE8324, 0xDAC5B265,
                        0x5D5DAEAA, 0x44469FEB, 0x6F6BCC28, 0x7670FD69, 0x39316BAE, 0x202A5AEF, 0x0B07092C, 0x121C386D,
                        0xDF4636F3, 0xC65D07B2, 0xED705471, 0xF46B6530, 0xBB2AF3F7, 0xA231C2B6, 0x891C9175, 0x9007A034,
                        0x179FBCFB, 0x0E848DBA, 0x25A9DE79, 0x3CB2EF38, 0x73F379FF, 0x6AE848BE, 0x41C51B7D, 0x58DE2A3C,
                        0xF0794F05, 0xE9627E44, 0xC24F2D87, 0xDB541CC6, 0x94158A01, 0x8D0EBB40, 0xA623E883, 0xBF38D9C2,
                        0x38A0C50D, 0x21BBF44C, 0x0A96A78F, 0x138D96CE, 0x5CCC0009, 0x45D73148, 0x6EFA628B, 0x77E153CA,
                        0xBABB5D54, 0xA3A06C15, 0x888D3FD6, 0x91960E97, 0xDED79850, 0xC7CCA911, 0xECE1FAD2, 0xF5FACB93,
                        0x7262D75C, 0x6B79E61D, 0x4054B5DE, 0x594F849F, 0x160E1258, 0x0F152319, 0x243870DA, 0x3D23419B,
                        0x65FD6BA7, 0x7CE65AE6, 0x57CB0925, 0x4ED03864, 0x0191AEA3, 0x188A9FE2, 0x33A7CC21, 0x2ABCFD60,
                        0xAD24E1AF, 0xB43FD0EE, 0x9F12832D, 0x8609B26C, 0xC94824AB, 0xD05315EA, 0xFB7E4629, 0xE2657768,
                        0x2F3F79F6, 0x362448B7, 0x1D091B74, 0x04122A35, 0x4B53BCF2, 0x52488DB3, 0x7965DE70, 0x607EEF31,
                        0xE7E6F3FE, 0xFEFDC2BF, 0xD5D0917C, 0xCCCBA03D, 0x838A36FA, 0x9A9107BB, 0xB1BC5478, 0xA8A76539,
                        0x3B83984B, 0x2298A90A, 0x09B5FAC9, 0x10AECB88, 0x5FEF5D4F, 0x46F46C0E, 0x6DD93FCD, 0x74C20E8C,
                        0xF35A1243, 0xEA412302, 0xC16C70C1, 0xD8774180, 0x9736D747, 0x8E2DE606, 0xA500B5C5, 0xBC1B8484,
                        0x71418A1A, 0x685ABB5B, 0x4377E898, 0x5A6CD9D9, 0x152D4F1E, 0x0C367E5F, 0x271B2D9C, 0x3E001CDD,
                        0xB9980012, 0xA0833153, 0x8BAE6290, 0x92B553D1, 0xDDF4C516, 0xC4EFF457, 0xEFC2A794, 0xF6D996D5,
                        0xAE07BCE9, 0xB71C8DA8, 0x9C31DE6B, 0x852AEF2A, 0xCA6B79ED, 0xD37048AC, 0xF85D1B6F, 0xE1462A2E,
                        0x66DE36E1, 0x7FC507A0, 0x54E85463, 0x4DF36522, 0x02B2F3E5, 0x1BA9C2A4, 0x30849167, 0x299FA026,
                        0xE4C5AEB8, 0xFDDE9FF9, 0xD6F3CC3A, 0xCFE8FD7B, 0x80A96BBC, 0x99B25AFD, 0xB29F093E, 0xAB84387F,
                        0x2C1C24B0, 0x350715F1, 0x1E2A4632, 0x07317773, 0x4870E1B4, 0x516BD0F5, 0x7A468336, 0x635DB277,
                        0xCBFAD74E, 0xD2E1E60F, 0xF9CCB5CC, 0xE0D7848D, 0xAF96124A, 0xB68D230B, 0x9DA070C8, 0x84BB4189,
                        0x03235D46, 0x1A386C07, 0x31153FC4, 0x280E0E85, 0x674F9842, 0x7E54A903, 0x5579FAC0, 0x4C62CB81,
                        0x8138C51F, 0x9823F45E, 0xB30EA79D, 0xAA1596DC, 0xE554001B, 0xFC4F315A, 0xD7626299, 0xCE7953D8,
                        0x49E14F17, 0x50FA7E56, 0x7BD72D95, 0x62CC1CD4, 0x2D8D8A13, 0x3496BB52, 0x1FBBE891, 0x06A0D9D0,
                        0x5E7EF3EC, 0x4765C2AD, 0x6C48916E, 0x7553A02F, 0x3A1236E8, 0x230907A9, 0x0824546A, 0x113F652B,
                        0x96A779E4, 0x8FBC48A5, 0xA4911B66, 0xBD8A2A27, 0xF2CBBCE0, 0xEBD08DA1, 0xC0FDDE62, 0xD9E6EF23,
                        0x14BCE1BD, 0x0DA7D0FC, 0x268A833F, 0x3F91B27E, 0x70D024B9, 0x69CB15F8, 0x42E6463B, 0x5BFD777A,
                        0xDC656BB5, 0xC57E5AF4, 0xEE530937, 0xF7483876, 0xB809AEB1, 0xA1129FF0, 0x8A3FCC33, 0x9324FD72)

    CrcTableOffset48 = (0x00000000, 0x01C26A37, 0x0384D46E, 0x0246BE59, 0x0709A8DC, 0x06CBC2EB, 0x048D7CB2, 0x054F1685,
                        0x0E1351B8, 0x0FD13B8F, 0x0D9785D6, 0x0C55EFE1, 0x091AF964, 0x08D89353, 0x0A9E2D0A, 0x0B5C473D,
                        0x1C26A370, 0x1DE4C947, 0x1FA2771E, 0x1E601D29, 0x1B2F0BAC, 0x1AED619B, 0x18ABDFC2, 0x1969B5F5,
                        0x1235F2C8, 0x13F798FF, 0x11B126A6, 0x10734C91, 0x153C5A14, 0x14FE3023, 0x16B88E7A, 0x177AE44D,
                        0x384D46E0, 0x398F2CD7, 0x3BC9928E, 0x3A0BF8B9, 0x3F44EE3C, 0x3E86840B, 0x3CC03A52, 0x3D025065,
                        0x365E1758, 0x379C7D6F, 0x35DAC336, 0x3418A901, 0x3157BF84, 0x3095D5B3, 0x32D36BEA, 0x331101DD,
                        0x246BE590, 0x25A98FA7, 0x27EF31FE, 0x262D5BC9, 0x23624D4C, 0x22A0277B, 0x20E69922, 0x2124F315,
                        0x2A78B428, 0x2BBADE1F, 0x29FC6046, 0x283E0A71, 0x2D711CF4, 0x2CB376C3, 0x2EF5C89A, 0x2F37A2AD,
                        0x709A8DC0, 0x7158E7F7, 0x731E59AE, 0x72DC3399, 0x7793251C, 0x76514F2B, 0x7417F172, 0x75D59B45,
                        0x7E89DC78, 0x7F4BB64F, 0x7D0D0816, 0x7CCF6221, 0x798074A4, 0x78421E93, 0x7A04A0CA, 0x7BC6CAFD,
                        0x6CBC2EB0, 0x6D7E4487, 0x6F38FADE, 0x6EFA90E9, 0x6BB5866C, 0x6A77EC5B, 0x68315202, 0x69F33835,
                        0x62AF7F08, 0x636D153F, 0x612BAB66, 0x60E9C151, 0x65A6D7D4, 0x6464BDE3, 0x662203BA, 0x67E0698D,
                        0x48D7CB20, 0x4915A117, 0x4B531F4E, 0x4A917579, 0x4FDE63FC, 0x4E1C09CB, 0x4C5AB792, 0x4D98DDA5,
                        0x46C49A98, 0x4706F0AF, 0x45404EF6, 0x448224C1, 0x41CD3244, 0x400F5873, 0x4249E62A, 0x438B8C1D,
                        0x54F16850, 0x55330267, 0x5775BC3E, 0x56B7D609, 0x53F8C08C, 0x523AAABB, 0x507C14E2, 0x51BE7ED5,
                        0x5AE239E8, 0x5B2053DF, 0x5966ED86, 0x58A487B1, 0x5DEB9134, 0x5C29FB03, 0x5E6F455A, 0x5FAD2F6D,
                        0xE1351B80, 0xE0F771B7, 0xE2B1CFEE, 0xE373A5D9, 0xE63CB35C, 0xE7FED96B, 0xE5B86732, 0xE47A0D05,
                        0xEF264A38, 0xEEE4200F, 0xECA29E56, 0xED60F461, 0xE82FE2E4, 0xE9ED88D3, 0xEBAB368A, 0xEA695CBD,
                        0xFD13B8F0, 0xFCD1D2C7, 0xFE976C9E, 0xFF5506A9, 0xFA1A102C, 0xFBD87A1B, 0xF99EC442, 0xF85CAE75,
                        0xF300E948, 0xF2C2837F, 0xF0843D26, 0xF1465711, 0xF4094194, 0xF5CB2BA3, 0xF78D95FA, 0xF64FFFCD,
                        0xD9785D60, 0xD8BA3757, 0xDAFC890E, 0xDB3EE339, 0xDE71F5BC, 0xDFB39F8B, 0xDDF521D2, 0xDC374BE5,
                        0xD76B0CD8, 0xD6A966EF, 0xD4EFD8B6, 0xD52DB281, 0xD062A404, 0xD1A0CE33, 0xD3E6706A, 0xD2241A5D,
                        0xC55EFE10, 0xC49C9427, 0xC6DA2A7E, 0xC7184049, 0xC25756CC, 0xC3953CFB, 0xC1D382A2, 0xC011E895,
                        0xCB4DAFA8, 0xCA8FC59F, 0xC8C97BC6, 0xC90B11F1, 0xCC440774, 0xCD866D43, 0xCFC0D31A, 0xCE02B92D,
                        0x91AF9640, 0x906DFC77, 0x922B422E, 0x93E92819, 0x96A63E9C, 0x976454AB, 0x9522EAF2, 0x94E080C5,
                        0x9FBCC7F8, 0x9E7EADCF, 0x9C381396, 0x9DFA79A1, 0x98B56F24, 0x99770513, 0x9B31BB4A, 0x9AF3D17D,
                        0x8D893530, 0x8C4B5F07, 0x8E0DE15E, 0x8FCF8B69, 0x8A809DEC, 0x8B42F7DB, 0x89044982, 0x88C623B5,
                        0x839A6488, 0x82580EBF, 0x801EB0E6, 0x81DCDAD1, 0x8493CC54, 0x8551A663, 0x8717183A, 0x86D5720D,
                        0xA9E2D0A0, 0xA820BA97, 0xAA6604CE, 0xABA46EF9, 0xAEEB787C, 0xAF29124B, 0xAD6FAC12, 0xACADC625,
                        0xA7F18118, 0xA633EB2F, 0xA4755576, 0xA5B73F41, 0xA0F829C4, 0xA13A43F3, 0xA37CFDAA, 0xA2BE979D,
                        0xB5C473D0, 0xB40619E7, 0xB640A7BE, 0xB782CD89, 0xB2CDDB0C, 0xB30FB13B, 0xB1490F62, 0xB08B6555,
                        0xBBD72268, 0xBA15485F, 0xB853F606, 0xB9919C31, 0xBCDE8AB4, 0xBD1CE083, 0xBF5A5EDA, 0xBE9834ED)

    CrcTableOffset56 = (0x00000000, 0xB8BC6765, 0xAA09C88B, 0x12B5AFEE, 0x8F629757, 0x37DEF032, 0x256B5FDC, 0x9DD738B9,
                        0xC5B428EF, 0x7D084F8A, 0x6FBDE064, 0xD7018701, 0x4AD6BFB8, 0xF26AD8DD, 0xE0DF7733, 0x58631056,
                        0x5019579F, 0xE8A530FA, 0xFA109F14, 0x42ACF871, 0xDF7BC0C8, 0x67C7A7AD, 0x75720843, 0xCDCE6F26,
                        0x95AD7F70, 0x2D111815, 0x3FA4B7FB, 0x8718D09E, 0x1ACFE827, 0xA2738F42, 0xB0C620AC, 0x087A47C9,
                        0xA032AF3E, 0x188EC85B, 0x0A3B67B5, 0xB28700D0, 0x2F503869, 0x97EC5F0C, 0x8559F0E2, 0x3DE59787,
                        0x658687D1, 0xDD3AE0B4, 0xCF8F4F5A, 0x7733283F, 0xEAE41086, 0x525877E3, 0x40EDD80D, 0xF851BF68,
                        0xF02BF8A1, 0x48979FC4, 0x5A22302A, 0xE29E574F, 0x7F496FF6, 0xC7F50893, 0xD540A77D, 0x6DFCC018,
                        0x359FD04E, 0x8D23B72B, 0x9F9618C5, 0x272A7FA0, 0xBAFD4719, 0x0241207C, 0x10F48F92, 0xA848E8F7,
                        0x9B14583D, 0x23A83F58, 0x311D90B6, 0x89A1F7D3, 0x1476CF6A, 0xACCAA80F, 0xBE7F07E1, 0x06C36084,
                        0x5EA070D2, 0xE61C17B7, 0xF4A9B859, 0x4C15DF3C, 0xD1C2E785, 0x697E80E0, 0x7BCB2F0E, 0xC377486B,
                        0xCB0D0FA2, 0x73B168C7, 0x6104C729, 0xD9B8A04C, 0x446F98F5, 0xFCD3FF90, 0xEE66507E, 0x56DA371B,
                        0x0EB9274D, 0xB6054028, 0xA4B0EFC6, 0x1C0C88A3, 0x81DBB01A, 0x3967D77F, 0x2BD27891, 0x936E1FF4,
                        0x3B26F703, 0x839A9066, 0x912F3F88, 0x299358ED, 0xB4446054, 0x0CF80731, 0x1E4DA8DF, 0xA6F1CFBA,
                        0xFE92DFEC, 0x462EB889, 0x549B1767, 0xEC277002, 0x71F048BB, 0xC94C2FDE, 0xDBF98030, 0x6345E755,
                        0x6B3FA09C, 0xD383C7F9, 0xC1366817, 0x798A0F72, 0xE45D37CB, 0x5CE150AE, 0x4E54FF40, 0xF6E89825,
                        0xAE8B8873, 0x1637EF16, 0x048240F8, 0xBC3E279D, 0x21E91F24, 0x99557841, 0x8BE0D7AF, 0x335CB0CA,
                        0xED59B63B, 0x55E5D15E, 0x47507EB0, 0xFFEC19D5, 0x623B216C, 0xDA874609, 0xC832E9E7, 0x708E8E82,
                        0x28ED9ED4, 0x9051F9B1, 0x82E4565F, 0x3A58313A, 0xA78F0983, 0x1F336EE6, 0x0D86C108, 0xB53AA66D,
                        0xBD40E1A4, 0x05FC86C1, 0x1749292F, 0xAFF54E4A, 0x322276F3, 0x8A9E1196, 0x982BBE78, 0x2097D91D,
                        0x78F4C94B, 0xC048AE2E, 0xD2FD01C0, 0x6A4166A5, 0xF7965E1C, 0x4F2A3979, 0x5D9F9697, 0xE523F1F2,
                        0x4D6B1905, 0xF5D77E60, 0xE762D18E, 0x5FDEB6EB, 0xC2098E52, 0x7AB5E937, 0x680046D9, 0xD0BC21BC,
                        0x88DF31EA, 0x3063568F, 0x22D6F961, 0x9A6A9E04, 0x07BDA6BD, 0xBF01C1D8, 0xADB46E36, 0x15080953,
                        0x1D724E9A, 0xA5CE29FF, 0xB77B8611, 0x0FC7E174, 0x9210D9CD, 0x2AACBEA8, 0x38191146, 0x80A57623,
                        0xD8C66675, 0x607A0110, 0x72CFAEFE, 0xCA73C99B, 0x57A4F122, 0xEF189647, 0xFDAD39A9, 0x45115ECC,
                        0x764DEE06, 0xCEF18963, 0xDC44268D, 0x64F841E8, 0xF92F7951, 0x41931E34, 0x5326B1DA, 0xEB9AD6BF,
                        0xB3F9C6E9, 0x0B45A18C, 0x19F00E62, 0xA14C6907, 0x3C9B51BE, 0x842736DB, 0x96929935, 0x2E2EFE50,
                        0x2654B999, 0x9EE8DEFC, 0x8C5D7112, 0x34E11677, 0xA9362ECE, 0x118A49AB, 0x033FE645, 0xBB838120,
                        0xE3E09176, 0x5B5CF613, 0x49E959FD, 0xF1553E98, 0x6C820621, 0xD43E6144, 0xC68BCEAA, 0x7E37A9CF,
                        0xD67F4138, 0x6EC3265D, 0x7C7689B3, 0xC4CAEED6, 0x591DD66F, 0xE1A1B10A, 0xF3141EE4, 0x4BA87981,
                        0x13CB69D7, 0xAB770EB2, 0xB9C2A15C, 0x017EC639, 0x9CA9FE80, 0x241599E5, 0x36A0360B, 0x8E1C516E,
                        0x866616A7, 0x3EDA71C2, 0x2C6FDE2C, 0x94D3B949, 0x090481F0, 0xB1B8E695, 0xA30D497B, 0x1BB12E1E,
                        0x43D23E48, 0xFB6E592D, 0xE9DBF6C3, 0x516791A6, 0xCCB0A91F, 0x740CCE7A, 0x66B96194, 0xDE0506F1)

    CrcTableOffset64 = (0x00000000, 0x3D6029B0, 0x7AC05360, 0x47A07AD0, 0xF580A6C0, 0xC8E08F70, 0x8F40F5A0, 0xB220DC10,
                        0x30704BC1, 0x0D106271, 0x4AB018A1, 0x77D03111, 0xC5F0ED01, 0xF890C4B1, 0xBF30BE61, 0x825097D1,
                        0x60E09782, 0x5D80BE32, 0x1A20C4E2, 0x2740ED52, 0x95603142, 0xA80018F2, 0xEFA06222, 0xD2C04B92,
                        0x5090DC43, 0x6DF0F5F3, 0x2A508F23, 0x1730A693, 0xA5107A83, 0x98705333, 0xDFD029E3, 0xE2B00053,
                        0xC1C12F04, 0xFCA106B4, 0xBB017C64, 0x866155D4, 0x344189C4, 0x0921A074, 0x4E81DAA4, 0x73E1F314,
                        0xF1B164C5, 0xCCD14D75, 0x8B7137A5, 0xB6111E15, 0x0431C205, 0x3951EBB5, 0x7EF19165, 0x4391B8D5,
                        0xA121B886, 0x9C419136, 0xDBE1EBE6, 0xE681C256, 0x54A11E46, 0x69C137F6, 0x2E614D26, 0x13016496,
                        0x9151F347, 0xAC31DAF7, 0xEB91A027, 0xD6F18997, 0x64D15587, 0x59B17C37, 0x1E1106E7, 0x23712F57,
                        0x58F35849, 0x659371F9, 0x22330B29, 0x1F532299, 0xAD73FE89, 0x9013D739, 0xD7B3ADE9, 0xEAD38459,
                        0x68831388, 0x55E33A38, 0x124340E8, 0x2F236958, 0x9D03B548, 0xA0639CF8, 0xE7C3E628, 0xDAA3CF98,
                        0x3813CFCB, 0x0573E67B, 0x42D39CAB, 0x7FB3B51B, 0xCD93690B, 0xF0F340BB, 0xB7533A6B, 0x8A3313DB,
                        0x0863840A, 0x3503ADBA, 0x72A3D76A, 0x4FC3FEDA, 0xFDE322CA, 0xC0830B7A, 0x872371AA, 0xBA43581A,
                        0x9932774D, 0xA4525EFD, 0xE3F2242D, 0xDE920D9D, 0x6CB2D18D, 0x51D2F83D, 0x167282ED, 0x2B12AB5D,
                        0xA9423C8C, 0x9422153C, 0xD3826FEC, 0xEEE2465C, 0x5CC29A4C, 0x61A2B3FC, 0x2602C92C, 0x1B62E09C,
                        0xF9D2E0CF, 0xC4B2C97F, 0x8312B3AF, 0xBE729A1F, 0x0C52460F, 0x31326FBF, 0x7692156F, 0x4BF23CDF,
                        0xC9A2AB0E, 0xF4C282BE, 0xB362F86E, 0x8E02D1DE, 0x3C220DCE, 0x0142247E, 0x46E25EAE, 0x7B82771E,
                        0xB1E6B092, 0x8C869922, 0xCB26E3F2, 0xF646CA42, 0x44661652, 0x79063FE2, 0x3EA64532, 0x03C66C82,
                        0x8196FB53, 0xBCF6D2E3, 0xFB56A833, 0xC6368183, 0x74165D93, 0x49767423, 0x0ED60EF3, 0x33B62743,
                        0xD1062710, 0xEC660EA0, 0xABC67470, 0x96A65DC0, 0x248681D0, 0x19E6A860, 0x5E46D2B0, 0x6326FB00,
                        0xE1766CD1, 0xDC164561, 0x9BB63FB1, 0xA6D61601, 0x14F6CA11, 0x2996E3A1, 0x6E369971, 0x5356B0C1,
                        0x70279F96, 0x4D47B626, 0x0AE7CCF6, 0x3787E546, 0x85A73956, 0xB8C710E6, 0xFF676A36, 0xC2074386,
                        0x4057D457, 0x7D37FDE7, 0x3A978737, 0x07F7AE87, 0xB5D77297, 0x88B75B27, 0xCF1721F7, 0xF2770847,
                        0x10C70814, 0x2DA721A4, 0x6A075B74, 0x576772C4, 0xE547AED4, 0xD8278764, 0x9F87FDB4, 0xA2E7D404,
                        0x20B743D5, 0x1DD76A65, 0x5A7710B5, 0x67173905, 0xD537E515, 0xE857CCA5, 0xAFF7B675, 0x92979FC5,
                        0xE915E8DB, 0xD475C16B, 0x93D5BBBB, 0xAEB5920B, 0x1C954E1B, 0x21F567AB, 0x66551D7B, 0x5B3534CB,
                        0xD965A31A, 0xE4058AAA, 0xA3A5F07A, 0x9EC5D9CA, 0x2CE505DA, 0x11852C6A, 0x562556BA, 0x6B457F0A,
                        0x89F57F59, 0xB49556E9, 0xF3352C39, 0xCE550589, 0x7C75D999, 0x4115F029, 0x06B58AF9, 0x3BD5A349,
                        0xB9853498, 0x84E51D28, 0xC34567F8, 0xFE254E48, 0x4C059258, 0x7165BBE8, 0x36C5C138, 0x0BA5E888,
                        0x28D4C7DF, 0x15B4EE6F, 0x521494BF, 0x6F74BD0F, 0xDD54611F, 0xE03448AF, 0xA794327F, 0x9AF41BCF,
                        0x18A48C1E, 0x25C4A5AE, 0x6264DF7E, 0x5F04F6CE, 0xED242ADE, 0xD044036E, 0x97E479BE, 0xAA84500E,
                        0x4834505D, 0x755479ED, 0x32F4033D, 0x0F942A8D, 0xBDB4F69D, 0x80D4DF2D, 0xC774A5FD, 0xFA148C4D,
                        0x78441B9C, 0x4524322C, 0x028448FC, 0x3FE4614C, 0x8DC4BD5C, 0xB0A494EC, 0xF704EE3C, 0xCA64C78C)

    CrcTableOffset72 = (0x00000000, 0xCB5CD3A5, 0x4DC8A10B, 0x869472AE, 0x9B914216, 0x50CD91B3, 0xD659E31D, 0x1D0530B8,
                        0xEC53826D, 0x270F51C8, 0xA19B2366, 0x6AC7F0C3, 0x77C2C07B, 0xBC9E13DE, 0x3A0A6170, 0xF156B2D5,
                        0x03D6029B, 0xC88AD13E, 0x4E1EA390, 0x85427035, 0x9847408D, 0x531B9328, 0xD58FE186, 0x1ED33223,
                        0xEF8580F6, 0x24D95353, 0xA24D21FD, 0x6911F258, 0x7414C2E0, 0xBF481145, 0x39DC63EB, 0xF280B04E,
                        0x07AC0536, 0xCCF0D693, 0x4A64A43D, 0x81387798, 0x9C3D4720, 0x57619485, 0xD1F5E62B, 0x1AA9358E,
                        0xEBFF875B, 0x20A354FE, 0xA6372650, 0x6D6BF5F5, 0x706EC54D, 0xBB3216E8, 0x3DA66446, 0xF6FAB7E3,
                        0x047A07AD, 0xCF26D408, 0x49B2A6A6, 0x82EE7503, 0x9FEB45BB, 0x54B7961E, 0xD223E4B0, 0x197F3715,
                        0xE82985C0, 0x23755665, 0xA5E124CB, 0x6EBDF76E, 0x73B8C7D6, 0xB8E41473, 0x3E7066DD, 0xF52CB578,
                        0x0F580A6C, 0xC404D9C9, 0x4290AB67, 0x89CC78C2, 0x94C9487A, 0x5F959BDF, 0xD901E971, 0x125D3AD4,
                        0xE30B8801, 0x28575BA4, 0xAEC3290A, 0x659FFAAF, 0x789ACA17, 0xB3C619B2, 0x35526B1C, 0xFE0EB8B9,
                        0x0C8E08F7, 0xC7D2DB52, 0x4146A9FC, 0x8A1A7A59, 0x971F4AE1, 0x5C439944, 0xDAD7EBEA, 0x118B384F,
                        0xE0DD8A9A, 0x2B81593F, 0xAD152B91, 0x6649F834, 0x7B4CC88C, 0xB0101B29, 0x36846987, 0xFDD8BA22,
                        0x08F40F5A, 0xC3A8DCFF, 0x453CAE51, 0x8E607DF4, 0x93654D4C, 0x58399EE9, 0xDEADEC47, 0x15F13FE2,
                        0xE4A78D37, 0x2FFB5E92, 0xA96F2C3C, 0x6233FF99, 0x7F36CF21, 0xB46A1C84, 0x32FE6E2A, 0xF9A2BD8F,
                        0x0B220DC1, 0xC07EDE64, 0x46EAACCA, 0x8DB67F6F, 0x90B34FD7, 0x5BEF9C72, 0xDD7BEEDC, 0x16273D79,
                        0xE7718FAC, 0x2C2D5C09, 0xAAB92EA7, 0x61E5FD02, 0x7CE0CDBA, 0xB7BC1E1F, 0x31286CB1, 0xFA74BF14,
                        0x1EB014D8, 0xD5ECC77D, 0x5378B5D3, 0x98246676, 0x852156CE, 0x4E7D856B, 0xC8E9F7C5, 0x03B52460,
                        0xF2E396B5, 0x39BF4510, 0xBF2B37BE, 0x7477E41B, 0x6972D4A3, 0xA22E0706, 0x24BA75A8, 0xEFE6A60D,
                        0x1D661643, 0xD63AC5E6, 0x50AEB748, 0x9BF264ED, 0x86F75455, 0x4DAB87F0, 0xCB3FF55E, 0x006326FB,
                        0xF135942E, 0x3A69478B, 0xBCFD3525, 0x77A1E680, 0x6AA4D638, 0xA1F8059D, 0x276C7733, 0xEC30A496,
                        0x191C11EE, 0xD240C24B, 0x54D4B0E5, 0x9F886340, 0x828D53F8, 0x49D1805D, 0xCF45F2F3, 0x04192156,
                        0xF54F9383, 0x3E134026, 0xB8873288, 0x73DBE12D, 0x6EDED195, 0xA5820230, 0x2316709E, 0xE84AA33B,
                        0x1ACA1375, 0xD196C0D0, 0x5702B27E, 0x9C5E61DB, 0x815B5163, 0x4A0782C6, 0xCC93F068, 0x07CF23CD,
                        0xF6999118, 0x3DC542BD, 0xBB513013, 0x700DE3B6, 0x6D08D30E, 0xA65400AB, 0x20C07205, 0xEB9CA1A0,
                        0x11E81EB4, 0xDAB4CD11, 0x5C20BFBF, 0x977C6C1A, 0x8A795CA2, 0x41258F07, 0xC7B1FDA9, 0x0CED2E0C,
                        0xFDBB9CD9, 0x36E74F7C, 0xB0733DD2, 0x7B2FEE77, 0x662ADECF, 0xAD760D6A, 0x2BE27FC4, 0xE0BEAC61,
                        0x123E1C2F, 0xD962CF8A, 0x5FF6BD24, 0x94AA6E81, 0x89AF5E39, 0x42F38D9C, 0xC467FF32, 0x0F3B2C97,
                        0xFE6D9E42, 0x35314DE7, 0xB3A53F49, 0x78F9ECEC, 0x65FCDC54, 0xAEA00FF1, 0x28347D5F, 0xE368AEFA,
                        0x16441B82, 0xDD18C827, 0x5B8CBA89, 0x90D0692C, 0x8DD55994, 0x46898A31, 0xC01DF89F, 0x0B412B3A,
                        0xFA1799EF, 0x314B4A4A, 0xB7DF38E4, 0x7C83EB41, 0x6186DBF9, 0xAADA085C, 0x2C4E7AF2, 0xE712A957,
                        0x15921919, 0xDECECABC, 0x585AB812, 0x93066BB7, 0x8E035B0F, 0x455F88AA, 0xC3CBFA04, 0x089729A1,
                        0xF9C19B74, 0x329D48D1, 0xB4093A7F, 0x7F55E9DA, 0x6250D962, 0xA90C0AC7, 0x2F987869, 0xE4C4ABCC)

    CrcTableOffset80 = (0x00000000, 0xA6770BB4, 0x979F1129, 0x31E81A9D, 0xF44F2413, 0x52382FA7, 0x63D0353A, 0xC5A73E8E,
                        0x33EF4E67, 0x959845D3, 0xA4705F4E, 0x020754FA, 0xC7A06A74, 0x61D761C0, 0x503F7B5D, 0xF64870E9,
                        0x67DE9CCE, 0xC1A9977A, 0xF0418DE7, 0x56368653, 0x9391B8DD, 0x35E6B369, 0x040EA9F4, 0xA279A240,
                        0x5431D2A9, 0xF246D91D, 0xC3AEC380, 0x65D9C834, 0xA07EF6BA, 0x0609FD0E, 0x37E1E793, 0x9196EC27,
                        0xCFBD399C, 0x69CA3228, 0x582228B5, 0xFE552301, 0x3BF21D8F, 0x9D85163B, 0xAC6D0CA6, 0x0A1A0712,
                        0xFC5277FB, 0x5A257C4F, 0x6BCD66D2, 0xCDBA6D66, 0x081D53E8, 0xAE6A585C, 0x9F8242C1, 0x39F54975,
                        0xA863A552, 0x0E14AEE6, 0x3FFCB47B, 0x998BBFCF, 0x5C2C8141, 0xFA5B8AF5, 0xCBB39068, 0x6DC49BDC,
                        0x9B8CEB35, 0x3DFBE081, 0x0C13FA1C, 0xAA64F1A8, 0x6FC3CF26, 0xC9B4C492, 0xF85CDE0F, 0x5E2BD5BB,
                        0x440B7579, 0xE27C7ECD, 0xD3946450, 0x75E36FE4, 0xB044516A, 0x16335ADE, 0x27DB4043, 0x81AC4BF7,
                        0x77E43B1E, 0xD19330AA, 0xE07B2A37, 0x460C2183, 0x83AB1F0D, 0x25DC14B9, 0x14340E24, 0xB2430590,
                        0x23D5E9B7, 0x85A2E203, 0xB44AF89E, 0x123DF32A, 0xD79ACDA4, 0x71EDC610, 0x4005DC8D, 0xE672D739,
                        0x103AA7D0, 0xB64DAC64, 0x87A5B6F9, 0x21D2BD4D, 0xE47583C3, 0x42028877, 0x73EA92EA, 0xD59D995E,
                        0x8BB64CE5, 0x2DC14751, 0x1C295DCC, 0xBA5E5678, 0x7FF968F6, 0xD98E6342, 0xE86679DF, 0x4E11726B,
                        0xB8590282, 0x1E2E0936, 0x2FC613AB, 0x89B1181F, 0x4C162691, 0xEA612D25, 0xDB8937B8, 0x7DFE3C0C,
                        0xEC68D02B, 0x4A1FDB9F, 0x7BF7C102, 0xDD80CAB6, 0x1827F438, 0xBE50FF8C, 0x8FB8E511, 0x29CFEEA5,
                        0xDF879E4C, 0x79F095F8, 0x48188F65, 0xEE6F84D1, 0x2BC8BA5F, 0x8DBFB1EB, 0xBC57AB76, 0x1A20A0C2,
                        0x8816EAF2, 0x2E61E146, 0x1F89FBDB, 0xB9FEF06F, 0x7C59CEE1, 0xDA2EC555, 0xEBC6DFC8, 0x4DB1D47C,
                        0xBBF9A495, 0x1D8EAF21, 0x2C66B5BC, 0x8A11BE08, 0x4FB68086, 0xE9C18B32, 0xD82991AF, 0x7E5E9A1B,
                        0xEFC8763C, 0x49BF7D88, 0x78576715, 0xDE206CA1, 0x1B87522F, 0xBDF0599B, 0x8C184306, 0x2A6F48B2,
                        0xDC27385B, 0x7A5033EF, 0x4BB82972, 0xEDCF22C6, 0x28681C48, 0x8E1F17FC, 0xBFF70D61, 0x198006D5,
                        0x47ABD36E, 0xE1DCD8DA, 0xD034C247, 0x7643C9F3, 0xB3E4F77D, 0x1593FCC9, 0x247BE654, 0x820CEDE0,
                        0x74449D09, 0xD23396BD, 0xE3DB8C20, 0x45AC8794, 0x800BB91A, 0x267CB2AE, 0x1794A833, 0xB1E3A387,
                        0x20754FA0, 0x86024414, 0xB7EA5E89, 0x119D553D, 0xD43A6BB3, 0x724D6007, 0x43A57A9A, 0xE5D2712E,
                        0x139A01C7, 0xB5ED0A73, 0x840510EE, 0x22721B5A, 0xE7D525D4, 0x41A22E60, 0x704A34FD, 0xD63D3F49,
                        0xCC1D9F8B, 0x6A6A943F, 0x5B828EA2, 0xFDF58516, 0x3852BB98, 0x9E25B02C, 0xAFCDAAB1, 0x09BAA105,
                        0xFFF2D1EC, 0x5985DA58, 0x686DC0C5, 0xCE1ACB71, 0x0BBDF5FF, 0xADCAFE4B, 0x9C22E4D6, 0x3A55EF62,
                        0xABC30345, 0x0DB408F1, 0x3C5C126C, 0x9A2B19D8, 0x5F8C2756, 0xF9FB2CE2, 0xC813367F, 0x6E643DCB,
                        0x982C4D22, 0x3E5B4696, 0x0FB35C0B, 0xA9C457BF, 0x6C636931, 0xCA146285, 0xFBFC7818, 0x5D8B73AC,
                        0x03A0A617, 0xA5D7ADA3, 0x943FB73E, 0x3248BC8A, 0xF7EF8204, 0x519889B0, 0x6070932D, 0xC6079899,
                        0x304FE870, 0x9638E3C4, 0xA7D0F959, 0x01A7F2ED, 0xC400CC63, 0x6277C7D7, 0x539FDD4A, 0xF5E8D6FE,
                        0x647E3AD9, 0xC209316D, 0xF3E12BF0, 0x55962044, 0x90311ECA, 0x3646157E, 0x07AE0FE3, 0xA1D90457,
                        0x579174BE, 0xF1E67F0A, 0xC00E6597, 0x66796E23, 0xA3DE50AD, 0x05A95B19, 0x34414184, 0x92364A30)

    CrcTableOffset88 = (0x00000000, 0xCCAA009E, 0x4225077D, 0x8E8F07E3, 0x844A0EFA, 0x48E00E64, 0xC66F0987, 0x0AC50919,
                        0xD3E51BB5, 0x1F4F1B2B, 0x91C01CC8, 0x5D6A1C56, 0x57AF154F, 0x9B0515D1, 0x158A1232, 0xD92012AC,
                        0x7CBB312B, 0xB01131B5, 0x3E9E3656, 0xF23436C8, 0xF8F13FD1, 0x345B3F4F, 0xBAD438AC, 0x767E3832,
                        0xAF5E2A9E, 0x63F42A00, 0xED7B2DE3, 0x21D12D7D, 0x2B142464, 0xE7BE24FA, 0x69312319, 0xA59B2387,
                        0xF9766256, 0x35DC62C8, 0xBB53652B, 0x77F965B5, 0x7D3C6CAC, 0xB1966C32, 0x3F196BD1, 0xF3B36B4F,
                        0x2A9379E3, 0xE639797D, 0x68B67E9E, 0xA41C7E00, 0xAED97719, 0x62737787, 0xECFC7064, 0x205670FA,
                        0x85CD537D, 0x496753E3, 0xC7E85400, 0x0B42549E, 0x01875D87, 0xCD2D5D19, 0x43A25AFA, 0x8F085A64,
                        0x562848C8, 0x9A824856, 0x140D4FB5, 0xD8A74F2B, 0xD2624632, 0x1EC846AC, 0x9047414F, 0x5CED41D1,
                        0x299DC2ED, 0xE537C273, 0x6BB8C590, 0xA712C50E, 0xADD7CC17, 0x617DCC89, 0xEFF2CB6A, 0x2358CBF4,
                        0xFA78D958, 0x36D2D9C6, 0xB85DDE25, 0x74F7DEBB, 0x7E32D7A2, 0xB298D73C, 0x3C17D0DF, 0xF0BDD041,
                        0x5526F3C6, 0x998CF358, 0x1703F4BB, 0xDBA9F425, 0xD16CFD3C, 0x1DC6FDA2, 0x9349FA41, 0x5FE3FADF,
                        0x86C3E873, 0x4A69E8ED, 0xC4E6EF0E, 0x084CEF90, 0x0289E689, 0xCE23E617, 0x40ACE1F4, 0x8C06E16A,
                        0xD0EBA0BB, 0x1C41A025, 0x92CEA7C6, 0x5E64A758, 0x54A1AE41, 0x980BAEDF, 0x1684A93C, 0xDA2EA9A2,
                        0x030EBB0E, 0xCFA4BB90, 0x412BBC73, 0x8D81BCED, 0x8744B5F4, 0x4BEEB56A, 0xC561B289, 0x09CBB217,
                        0xAC509190, 0x60FA910E, 0xEE7596ED, 0x22DF9673, 0x281A9F6A, 0xE4B09FF4, 0x6A3F9817, 0xA6959889,
                        0x7FB58A25, 0xB31F8ABB, 0x3D908D58, 0xF13A8DC6, 0xFBFF84DF, 0x37558441, 0xB9DA83A2, 0x7570833C,
                        0x533B85DA, 0x9F918544, 0x111E82A7, 0xDDB48239, 0xD7718B20, 0x1BDB8BBE, 0x95548C5D, 0x59FE8CC3,
                        0x80DE9E6F, 0x4C749EF1, 0xC2FB9912, 0x0E51998C, 0x04949095, 0xC83E900B, 0x46B197E8, 0x8A1B9776,
                        0x2F80B4F1, 0xE32AB46F, 0x6DA5B38C, 0xA10FB312, 0xABCABA0B, 0x6760BA95, 0xE9EFBD76, 0x2545BDE8,
                        0xFC65AF44, 0x30CFAFDA, 0xBE40A839, 0x72EAA8A7, 0x782FA1BE, 0xB485A120, 0x3A0AA6C3, 0xF6A0A65D,
                        0xAA4DE78C, 0x66E7E712, 0xE868E0F1, 0x24C2E06F, 0x2E07E976, 0xE2ADE9E8, 0x6C22EE0B, 0xA088EE95,
                        0x79A8FC39, 0xB502FCA7, 0x3B8DFB44, 0xF727FBDA, 0xFDE2F2C3, 0x3148F25D, 0xBFC7F5BE, 0x736DF520,
                        0xD6F6D6A7, 0x1A5CD639, 0x94D3D1DA, 0x5879D144, 0x52BCD85D, 0x9E16D8C3, 0x1099DF20, 0xDC33DFBE,
                        0x0513CD12, 0xC9B9CD8C, 0x4736CA6F, 0x8B9CCAF1, 0x8159C3E8, 0x4DF3C376, 0xC37CC495, 0x0FD6C40B,
                        0x7AA64737, 0xB60C47A9, 0x3883404A, 0xF42940D4, 0xFEEC49CD, 0x32464953, 0xBCC94EB0, 0x70634E2E,
                        0xA9435C82, 0x65E95C1C, 0xEB665BFF, 0x27CC5B61, 0x2D095278, 0xE1A352E6, 0x6F2C5505, 0xA386559B,
                        0x061D761C, 0xCAB77682, 0x44387161, 0x889271FF, 0x825778E6, 0x4EFD7878, 0xC0727F9B, 0x0CD87F05,
                        0xD5F86DA9, 0x19526D37, 0x97DD6AD4, 0x5B776A4A, 0x51B26353, 0x9D1863CD, 0x1397642E, 0xDF3D64B0,
                        0x83D02561, 0x4F7A25FF, 0xC1F5221C, 0x0D5F2282, 0x079A2B9B, 0xCB302B05, 0x45BF2CE6, 0x89152C78,
                        0x50353ED4, 0x9C9F3E4A, 0x121039A9, 0xDEBA3937, 0xD47F302E, 0x18D530B0, 0x965A3753, 0x5AF037CD,
                        0xFF6B144A, 0x33C114D4, 0xBD4E1337, 0x71E413A9, 0x7B211AB0, 0xB78B1A2E, 0x39041DCD, 0xF5AE1D53,
                        0x2C8E0FFF, 0xE0240F61, 0x6EAB0882, 0xA201081C, 0xA8C40105, 0x646E019B, 0xEAE10678, 0x264B06E6)

    @staticmethod
    def ComputeCRC(pv):
        """ from [MS-PST]. dwCRC is zero. pv is bytes to CRC. cbLength is length of pv """

        dwCRC = 0
        cbLength = len(pv)
        if cbLength < 4:
            cbRunningLength = 0
        else:
            cbRunningLength = (cbLength//8)*8
        cbEndUnalignedBytes = cbLength - cbRunningLength

        index = 0
        for i in range(1, (cbRunningLength//8) + 1):
            dwCRC ^= struct.unpack('I',pv[index:index+4])[0]
            dwCRC = CRC.CrcTableOffset88[dwCRC & 0x000000FF] ^ CRC.CrcTableOffset80[(dwCRC >> 8) & 0x000000FF] ^ CRC.CrcTableOffset72[(dwCRC >> 16) & 0x000000FF] ^ CRC.CrcTableOffset64[(dwCRC >> 24) & 0x000000FF]
            index += 4

            dw2nd32 = struct.unpack('I',pv[index:index+4])[0]
            dwCRC = dwCRC ^ CRC.CrcTableOffset56[dw2nd32 & 0x000000FF] ^ CRC.CrcTableOffset48[(dw2nd32 >> 8) & 0x000000FF] ^ CRC.CrcTableOffset40[(dw2nd32 >> 16) & 0x000000FF] ^ CRC.CrcTableOffset32[(dw2nd32 >> 24) & 0x000000FF]
            index += 4

        for i in range(1, cbEndUnalignedBytes + 1):
            dwCRC = CRC.CrcTableOffset32[(dwCRC ^ struct.unpack('B',pv[index:index+1])[0]) & 0x000000FF] ^ (dwCRC >> 8)
            index += 1

        return dwCRC


class FieldSize:
    BYTE = 1
    WORD = 2
    DWORD = 4
    ANSIDWORD = 8


class Header:

    def __init__(self, fd):

        # common ansi/unicode fields
        fd.seek(0)
        self.dwMagic = fd.read(FieldSize.DWORD)
        self.dwCRCPartial = fd.read(FieldSize.DWORD) # ignore
        self.wMagicClient = fd.read(FieldSize.WORD)

        try:
            self.wVer, self.wVerClient, self.bPlatformCreate, self.bPlatformAccess = struct.unpack('HHBB',fd.read(FieldSize.WORD+FieldSize.WORD+FieldSize.BYTE+FieldSize.BYTE))
        except struct.error:
            self.validPST = False
            return

        self.dwReserved1 = fd.read(FieldSize.DWORD) # ignore
        self.dwReserved2 = fd.read(FieldSize.DWORD) # ignore

        self.validPST = (self.dwMagic == b'!BDN' and self.wMagicClient == b'SM')
        if not self.validPST:
            return
        self.is_ansi = (self.wVer in (14, 15))
        self.is_unicode = (self.wVer == 23)
        if not (self.is_ansi or self.is_unicode):
            self.validPST = False
            return

        if self.is_ansi:
            self.bidNextB = BID(fd.read(FieldSize.DWORD))
            self.bidNextP = BID(fd.read(FieldSize.DWORD))
            self.dwUnique = fd.read(FieldSize.DWORD)
            self.rgnid = struct.unpack('IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII', fd.read(128))
            self.root = Root(fd.read(40), True)
            self.rgbFM = fd.read(128) # unused
            self.rgbFP = fd.read(128) # unused
            self.bSentinel, self.bCryptMethod = struct.unpack('BB', fd.read(FieldSize.BYTE+FieldSize.BYTE))
            self.rgbReserved = fd.read(FieldSize.WORD) # unused
            self.ullReserved = fd.read(8) # unused
            self.dwReserved = fd.read(FieldSize.DWORD) # unused
            self.rgbReserved2 = fd.read(3) # unused
            self.bReserved = fd.read(1) # unused
            self.rgbReserved3 = fd.read(32) # unused

        if self.is_unicode:
            self.bidUnused = fd.read(FieldSize.ANSIDWORD) # unused
            self.bidNextP = BID(fd.read(FieldSize.ANSIDWORD))
            #self.bidNextB = fd.read(FieldSize.ANSIDWORD) # the spec is wrong, example in appendix is correct
            self.dwUnique = fd.read(FieldSize.DWORD) # ignore
            self.rgnid = struct.unpack('IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII', fd.read(128))
            self.qwUnused = fd.read(FieldSize.ANSIDWORD) # unused
            self.root = Root(fd.read(72), False)
            self.dwAlign = fd.read(FieldSize.DWORD) # unused
            self.rgbFM = fd.read(128) # unused
            self.rgbFP = fd.read(128) # unused
            self.bSentinel, self.bCryptMethod = struct.unpack('BB', fd.read(FieldSize.BYTE+FieldSize.BYTE))
            self.rgbReserved = fd.read(FieldSize.WORD) # unused
            self.bidNextB = BID(fd.read(FieldSize.ANSIDWORD)) # repeated from above in spec
            self.dwCRCFull = fd.read(FieldSize.DWORD) # ignored
            self.rgbReserved2 = fd.read(3) # unused
            self.bReserved = fd.read(1) # unused
            self.rgbReserved3 = fd.read(32) # unused



class Root:

    def __init__(self, bytes, is_ansi):

        if is_ansi: # 40
            self.ibFileEof, self.ibAMapLast, self.cbAMapFree, self.cbPMapFree, self.BREFNBT, self.BREFBBT, self.fAMapValid = \
                struct.unpack('IIII8s8sB', bytes[4:-3])
        else: #unicode #72
            self.ibFileEof, self.ibAMapLast, self.cbAMapFree, self.cbPMapFree, self.BREFNBT, self.BREFBBT, self.fAMapValid = \
                struct.unpack('QQQQ16s16sB', bytes[4:-3])
        self.BREFNBT = BREF(self.BREFNBT)
        self.BREFBBT = BREF(self.BREFBBT)



class PST:

    def __init__(self, pst_file):

        self.fd = open(pst_file,'rb')
        self.header = Header(self.fd)
        if not self.header.validPST:
            raise PSTException('PST file is not a valid PST')

        if self.header.bCryptMethod not in (0,1): # unencoded or NDB_CRYPT_PERMUTE
            raise PSTException('Unsupported encoding/crypt method %s' % self.header.bCryptMethod)

        self.nbd = NBD(self.fd, self.header)
        self.ltp = LTP(self.nbd)
        self.messaging = Messaging(self.ltp)


    def close(self):

        self.fd.close()


    def folder_generator(self):

        root_folder = self.messaging.get_folder(self.messaging.root_entryid, '')
        subfolder_stack = root_folder.subfolders
        yield root_folder

        #Deleted Items should also be in root folder, so don't need to get this one
        #bin_folder = self.messaging.get_folder(self.messaging.deleted_items_entryid, '')
        #subfolder_stack.extend(bin_folder.subfolders)
        #yield bin_folder

        while subfolder_stack:
            subfolder = subfolder_stack.pop()
            try:
                folder = Folder(subfolder.nid, self.ltp, subfolder.parent_path, self.messaging)
                subfolder_stack.extend(folder.subfolders)
                yield folder
            except PSTException as e:
                log_error(e)


    def message_generator(self, folder):

        try:
            for submessage in folder.submessages:
                try:
                    message = Message(submessage.nid, self.ltp, messaging=self.messaging)
                    yield message
                except PSTException as e:
                    log_error(e)
        except GeneratorExit:
            pass
        finally:
            pass


    def export_all_attachments(self, path='', progressbar = None, total_attachments = 0, overwrite=True):
        """dumps all attachments in the PST to a path"""

        attachments_completed = 0
        for folder in self.folder_generator():
            for message in self.message_generator(folder):
                if message.HasAttachments:
                    for subattachment in message.subattachments:
                        attachment = message.get_attachment(subattachment)
                        if len(attachment.data) !=0:
                            filepath = os.path.join(path, attachment.Filename)
                            if overwrite:
                                if os.path.exists(filepath):
                                    os.remove(filepath)
                            else:
                                filepath = get_unused_filename(filepath)
                            write_file(filepath, attachment.data, 'wb')
                        attachments_completed += 1
                        if progressbar:
                            progressbar.update(attachments_completed * 100.0 / total_attachments)


    def export_all_messages(self, path='', progressbar = None, total_messages = 0):

        messages_completed = 0
        for folder in self.folder_generator():
            filepath = get_unused_filename(os.path.join(path, get_safe_filename(folder.path.replace('\\','_'))+'.txt'))
            msg_txt = u''
            for message in self.message_generator(folder):
                msg_txt += u'Subject: %s\nFrom: %s (%s)\n' % (message.Subject, message.SenderName, message.SenderSmtpAddress)
                msg_txt += u'To: %s\n' % ('; '.join([u'%s (%s)' % (subrecipient.DisplayName, subrecipient.EmailAddress) for subrecipient in message.subrecipients]))
                msg_txt += u'Sent: %s\nDelivered: %s\n' % (message.ClientSubmitTime, message.MessageDeliveryTime)
                msg_txt += u'MessageClass: %s\n' % (message.MessageClass)
                if message.HasAttachments:
                    msg_txt += u'Attachments: %s\n' % (u', '.join([subattachment.__repr__() for subattachment in message.subattachments]))
                msg_txt += u'\n%s\n\n\n' % message.Body
            if msg_txt:
                write_file(filepath, unicode2ascii(msg_txt), 'w')
                messages_completed += 1
                if progressbar:
                    progressbar.update(messages_completed * 100.0 / total_messages)


    def get_total_message_count(self):

        total_message_count = 0
        for folder in self.folder_generator():
            total_message_count += len(folder.submessages)
        return total_message_count


    def get_total_attachment_count(self):

        total_attachment_count = 0
        for folder in self.folder_generator():
            for message in self.message_generator(folder):
                if message.HasAttachments:
                    total_attachment_count += len(message.subattachments)
        return total_attachment_count


    def get_pst_status(self):

        status = u'Valid PST: %s, Unicode: %s, CryptMethod: %s, Name: %s, Password: %s' % (self.header.validPST, self.header.is_unicode, self.header.bCryptMethod, self.messaging.message_store.getval(PropIdEnum.PidTagDisplayName), self.messaging.PasswordCRC32Hash)
        return status


    @staticmethod
    def bruteforce(charset, maxlength):

        return (''.join(candidate) for candidate in itertools.chain.from_iterable(itertools.product(charset, repeat=i) for i in range(1, maxlength + 1)))


    @staticmethod
    def crack_password(crc, dictionary_file=''):
        """either does a dictionary attack against the PST password CRC hash, or does a brute force of up to 4 chars"""

        if dictionary_file:
            dic_entries = read_file(dictionary_file).split('\n')
            for password_check in dic_entries:
                crc_check = CRC.ComputeCRC(password_check.strip())
                if crc == crc_check:
                    return password_check
        else: # brute force
            charset = string.ascii_lowercase + string.digits
            for password_length in range(1,5):
                for password_check in PST.bruteforce(charset, password_length):
                    crc_check = CRC.ComputeCRC(password_check)
                    if crc == crc_check:
                        return password_check
        return ''


###################################################################################################################################
#  _   _ _   _ _ _ _           _____                 _   _
# | | | | |_(_) (_) |_ _   _  |  ___|   _ _ __   ___| |_(_) ___  _ __  ___
# | | | | __| | | | __| | | | | |_ | | | | '_ \ / __| __| |/ _ \| '_ \/ __|
# | |_| | |_| | | | |_| |_| | |  _|| |_| | | | | (__| |_| | (_) | | | \__ \
#  \___/ \__|_|_|_|\__|\__, | |_|   \__,_|_| |_|\___|\__|_|\___/|_| |_|___/
#                      |___/
###################################################################################################################################



def hex(i):

    return '0x%x' % i


def bin_bytes(bytes):

    return ''.join([bin(ord(c)).lstrip('0b').zfill(8) for c in bytes])


def bit_shift_bytes_left(bytes, offset):

    new_bytes = ''
    for c in bytes:
        new_bytes += chr( ord(c) << offset)
    return new_bytes


def size_friendly(size):

    if size < 1024:
        return '%sB' % (size)
    elif size < 1024*1024:
        return '%sKB' % (size//1024)
    elif size < 1024*1024*1024:
        return '%sMB' % (size//(1024*1024))
    else:
        return '%sGB' % (size//(1024*1024*1024))


def unicode2ascii(unicode_str):

    return unicodedata.normalize('NFKD', unicode_str).encode('ascii','ignore')


def write_file(fn, s, write_mode='w'):

    f = open(fn,write_mode)
    f.write(s)
    f.close()


def read_file(fn, open_mode="r"):
    f = open(fn, open_mode)
    s = f.read()
    f.close()
    return s


def get_unused_filename(filepath):
    """ adds numbered suffix to filepath if filename already exists"""

    if os.path.exists(filepath):
        suffix = 1
        while os.path.exists('%s-%s%s' % (os.path.splitext(filepath)[0], suffix, os.path.splitext(filepath)[1])):
            suffix += 1
        filepath = '%s-%s%s' % (os.path.splitext(filepath)[0], suffix, os.path.splitext(filepath)[1])
    return filepath


def get_safe_filename(filename):

    return re.sub(r'[/\\;,><&\*:%=\+@!#\^\(\)|\?]', '', filename)


def set_log(log, stats):
    global LOG, STATS
    LOG, STATS = log, stats

def log_error(e):
    global error_log_list
    error_log_list.append(str(e))
    LOG.error(str(e))
    LOG.error(traceback.format_exc())
    STATS['errors'] += 1
#    sys.stderr.write(e.message+'\n')



###############################################################################################################################
#
#  _____         _     _____                 _   _
# |_   _|__  ___| |_  |  ___|   _ _ __   ___| |_(_) ___  _ __  ___
#   | |/ _ \/ __| __| | |_ | | | | '_ \ / __| __| |/ _ \| '_ \/ __|
#   | |  __/\__ \ |_  |  _|| |_| | | | | (__| |_| | (_) | | | \__ \
#   |_|\___||___/\__| |_|   \__,_|_| |_|\___|\__|_|\___/|_| |_|___/
#
###############################################################################################################################



def test_status_pst(pst_filepath):

    pst = PST(pst_filepath)
    print(unicode2ascii(pst.get_pst_status()))
    print('Total Messages: %s' % pst.get_total_message_count())
    print('Total Attachments: %s' % pst.get_total_attachment_count())
    pst.close()


def get_simple_progressbar(title):

        pbar_widgets = [title, progressbar.Percentage(), ' ', progressbar.Bar(marker = progressbar.RotatingMarker()), ' ', progressbar.ETA()]
        pbar = progressbar.ProgressBar(widgets = pbar_widgets).start()
        return pbar


def test_dump_pst(pst_filepath, output_path):
    """ dump out all PST email attachments and emails (into text files) to output_path folder"""

    pst = PST(pst_filepath)
    print(pst.get_pst_status())

    pbar = get_simple_progressbar('Messages: ')
    total_messages = pst.get_total_message_count()
    pst.export_all_messages(output_path, pbar, total_messages)
    pbar.finish()

    pbar = get_simple_progressbar('Attachments: ')
    total_attachments = pst.get_total_attachment_count()
    pst.export_all_attachments(output_path, pbar, total_attachments)
    pbar.finish()

    pst.close()


def test_folder_psts(psts_folder):

    global error_log_list

    s = ''
    for pst_filepath in [os.path.join(psts_folder, filename) for filename in os.listdir(psts_folder) if os.path.isfile(os.path.join(psts_folder, filename)) and os.path.splitext(filename.lower())[1] == '.pst']:
        try:
            s += 'Opening %s\n' % pst_filepath
            error_log_list = []
            pst = PST(pst_filepath)
            status = unicode2ascii(pst.get_pst_status())
            print(status)
            password = ''
            if pst.messaging.PasswordCRC32Hash:
                password = pst.crack_password(pst.messaging.PasswordCRC32Hash)
                if password:
                    password = ' (%s)' % password
            s += status + password + '\n'
            pst.close()
            s += '\n'.join(error_log_list)
            s += '\n\n\n'
        except Exception as e:
            s += 'ERROR: %s\n' % e

    write_file(os.path.join(psts_folder, 'psts_test.txt'), s)



###################################################################################################################################
#  __  __       _
# |  \/  | __ _(_)_ __
# | |\/| |/ _` | | '_ \
# | |  | | (_| | | | | |
# |_|  |_|\__,_|_|_| |_|
#
###################################################################################################################################


if __name__=="__main__":

    input_pst_file = ''
    output_folder = 'dump'

    arg_parser = argparse.ArgumentParser(prog='pst', description='PST: parses PST files. Can dump emails and attachments.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    arg_parser.add_argument('-i', dest='input_pst_file', default=input_pst_file, help='input PST file to dump')
    arg_parser.add_argument('-o', dest='output_folder', default=output_folder, help='output folder')
    arg_parser.add_argument('-t', dest='debug', help=argparse.SUPPRESS, action='store_true', default=False) # hidden argument

    args = arg_parser.parse_args()

    if not args.debug:

        input_pst_file = args.input_pst_file
        output_folder = args.output_folder

        if not os.path.exists(input_pst_file):
            print('Input PST file does not exist')
            sys.exit(1)

        if not os.path.exists(output_folder):
            print('Output folder does not exist')
            sys.exit(1)

        test_dump_pst(input_pst_file,output_folder)

    else: # debug

        pass
        #test_folder = 'D:\\'
        #test_status_pst(test_folder+'sample.pst')
        #test_dump_pst(test_folder+'sample.pst', test_folder+'dump')
        #test_folder_psts(test_folder)