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
|
"""
BitBake 'Fetch' implementations
Classes for obtaining upstream sources for the
BitBake build tools.
"""
# Copyright (C) 2003, 2004 Chris Larson
# Copyright (C) 2012 Intel Corporation
#
# SPDX-License-Identifier: GPL-2.0-only
#
# Based on functions from the base bb module, Copyright 2003 Holger Schurig
import os, re
import signal
import logging
import urllib.request, urllib.parse, urllib.error
if 'git' not in urllib.parse.uses_netloc:
urllib.parse.uses_netloc.append('git')
import operator
import collections
import subprocess
import pickle
import errno
import bb.persist_data, bb.utils
import bb.checksum
import bb.process
import bb.event
__version__ = "2"
_checksum_cache = bb.checksum.FileChecksumCache()
logger = logging.getLogger("BitBake.Fetcher")
CHECKSUM_LIST = [ "md5", "sha256", "sha1", "sha384", "sha512" ]
SHOWN_CHECKSUM_LIST = ["sha256"]
class BBFetchException(Exception):
"""Class all fetch exceptions inherit from"""
def __init__(self, message):
self.msg = message
Exception.__init__(self, message)
def __str__(self):
return self.msg
class UntrustedUrl(BBFetchException):
"""Exception raised when encountering a host not listed in BB_ALLOWED_NETWORKS"""
def __init__(self, url, message=''):
if message:
msg = message
else:
msg = "The URL: '%s' is not trusted and cannot be used" % url
self.url = url
BBFetchException.__init__(self, msg)
self.args = (url,)
class MalformedUrl(BBFetchException):
"""Exception raised when encountering an invalid url"""
def __init__(self, url, message=''):
if message:
msg = message
else:
msg = "The URL: '%s' is invalid and cannot be interpreted" % url
self.url = url
BBFetchException.__init__(self, msg)
self.args = (url,)
class FetchError(BBFetchException):
"""General fetcher exception when something happens incorrectly"""
def __init__(self, message, url = None):
if url:
msg = "Fetcher failure for URL: '%s'. %s" % (url, message)
else:
msg = "Fetcher failure: %s" % message
self.url = url
BBFetchException.__init__(self, msg)
self.args = (message, url)
class ChecksumError(FetchError):
"""Exception when mismatched checksum encountered"""
def __init__(self, message, url = None, checksum = None):
self.checksum = checksum
FetchError.__init__(self, message, url)
class NoChecksumError(FetchError):
"""Exception when no checksum is specified, but BB_STRICT_CHECKSUM is set"""
class UnpackError(BBFetchException):
"""General fetcher exception when something happens incorrectly when unpacking"""
def __init__(self, message, url):
msg = "Unpack failure for URL: '%s'. %s" % (url, message)
self.url = url
BBFetchException.__init__(self, msg)
self.args = (message, url)
class NoMethodError(BBFetchException):
"""Exception raised when there is no method to obtain a supplied url or set of urls"""
def __init__(self, url):
msg = "Could not find a fetcher which supports the URL: '%s'" % url
self.url = url
BBFetchException.__init__(self, msg)
self.args = (url,)
class MissingParameterError(BBFetchException):
"""Exception raised when a fetch method is missing a critical parameter in the url"""
def __init__(self, missing, url):
msg = "URL: '%s' is missing the required parameter '%s'" % (url, missing)
self.url = url
self.missing = missing
BBFetchException.__init__(self, msg)
self.args = (missing, url)
class ParameterError(BBFetchException):
"""Exception raised when a url cannot be proccessed due to invalid parameters."""
def __init__(self, message, url):
msg = "URL: '%s' has invalid parameters. %s" % (url, message)
self.url = url
BBFetchException.__init__(self, msg)
self.args = (message, url)
class NetworkAccess(BBFetchException):
"""Exception raised when network access is disabled but it is required."""
def __init__(self, url, cmd):
msg = "Network access disabled through BB_NO_NETWORK (or set indirectly due to use of BB_FETCH_PREMIRRORONLY) but access requested with command %s (for url %s)" % (cmd, url)
self.url = url
self.cmd = cmd
BBFetchException.__init__(self, msg)
self.args = (url, cmd)
class NonLocalMethod(Exception):
def __init__(self):
Exception.__init__(self)
class MissingChecksumEvent(bb.event.Event):
def __init__(self, url, **checksums):
self.url = url
self.checksums = checksums
bb.event.Event.__init__(self)
class URI(object):
"""
A class representing a generic URI, with methods for
accessing the URI components, and stringifies to the
URI.
It is constructed by calling it with a URI, or setting
the attributes manually:
uri = URI("http://example.com/")
uri = URI()
uri.scheme = 'http'
uri.hostname = 'example.com'
uri.path = '/'
It has the following attributes:
* scheme (read/write)
* userinfo (authentication information) (read/write)
* username (read/write)
* password (read/write)
Note, password is deprecated as of RFC 3986.
* hostname (read/write)
* port (read/write)
* hostport (read only)
"hostname:port", if both are set, otherwise just "hostname"
* path (read/write)
* path_quoted (read/write)
A URI quoted version of path
* params (dict) (read/write)
* query (dict) (read/write)
* relative (bool) (read only)
True if this is a "relative URI", (e.g. file:foo.diff)
It stringifies to the URI itself.
Some notes about relative URIs: while it's specified that
a URI beginning with <scheme>:// should either be directly
followed by a hostname or a /, the old URI handling of the
fetch2 library did not comform to this. Therefore, this URI
class has some kludges to make sure that URIs are parsed in
a way comforming to bitbake's current usage. This URI class
supports the following:
file:relative/path.diff (IETF compliant)
git:relative/path.git (IETF compliant)
git:///absolute/path.git (IETF compliant)
file:///absolute/path.diff (IETF compliant)
file://relative/path.diff (not IETF compliant)
But it does not support the following:
file://hostname/absolute/path.diff (would be IETF compliant)
Note that the last case only applies to a list of
"whitelisted" schemes (currently only file://), that requires
its URIs to not have a network location.
"""
_relative_schemes = ['file', 'git']
_netloc_forbidden = ['file']
def __init__(self, uri=None):
self.scheme = ''
self.userinfo = ''
self.hostname = ''
self.port = None
self._path = ''
self.params = {}
self.query = {}
self.relative = False
if not uri:
return
# We hijack the URL parameters, since the way bitbake uses
# them are not quite RFC compliant.
uri, param_str = (uri.split(";", 1) + [None])[:2]
urlp = urllib.parse.urlparse(uri)
self.scheme = urlp.scheme
reparse = 0
# Coerce urlparse to make URI scheme use netloc
if not self.scheme in urllib.parse.uses_netloc:
urllib.parse.uses_params.append(self.scheme)
reparse = 1
# Make urlparse happy(/ier) by converting local resources
# to RFC compliant URL format. E.g.:
# file://foo.diff -> file:foo.diff
if urlp.scheme in self._netloc_forbidden:
uri = re.sub("(?<=:)//(?!/)", "", uri, 1)
reparse = 1
if reparse:
urlp = urllib.parse.urlparse(uri)
# Identify if the URI is relative or not
if urlp.scheme in self._relative_schemes and \
re.compile(r"^\w+:(?!//)").match(uri):
self.relative = True
if not self.relative:
self.hostname = urlp.hostname or ''
self.port = urlp.port
self.userinfo += urlp.username or ''
if urlp.password:
self.userinfo += ':%s' % urlp.password
self.path = urllib.parse.unquote(urlp.path)
if param_str:
self.params = self._param_str_split(param_str, ";")
if urlp.query:
self.query = self._param_str_split(urlp.query, "&")
def __str__(self):
userinfo = self.userinfo
if userinfo:
userinfo += '@'
return "%s:%s%s%s%s%s%s" % (
self.scheme,
'' if self.relative else '//',
userinfo,
self.hostport,
self.path_quoted,
self._query_str(),
self._param_str())
def _param_str(self):
return (
''.join([';', self._param_str_join(self.params, ";")])
if self.params else '')
def _query_str(self):
return (
''.join(['?', self._param_str_join(self.query, "&")])
if self.query else '')
def _param_str_split(self, string, elmdelim, kvdelim="="):
ret = collections.OrderedDict()
for k, v in [x.split(kvdelim, 1) for x in string.split(elmdelim)]:
ret[k] = v
return ret
def _param_str_join(self, dict_, elmdelim, kvdelim="="):
return elmdelim.join([kvdelim.join([k, v]) for k, v in dict_.items()])
@property
def hostport(self):
if not self.port:
return self.hostname
return "%s:%d" % (self.hostname, self.port)
@property
def path_quoted(self):
return urllib.parse.quote(self.path)
@path_quoted.setter
def path_quoted(self, path):
self.path = urllib.parse.unquote(path)
@property
def path(self):
return self._path
@path.setter
def path(self, path):
self._path = path
if not path or re.compile("^/").match(path):
self.relative = False
else:
self.relative = True
@property
def username(self):
if self.userinfo:
return (self.userinfo.split(":", 1))[0]
return ''
@username.setter
def username(self, username):
password = self.password
self.userinfo = username
if password:
self.userinfo += ":%s" % password
@property
def password(self):
if self.userinfo and ":" in self.userinfo:
return (self.userinfo.split(":", 1))[1]
return ''
@password.setter
def password(self, password):
self.userinfo = "%s:%s" % (self.username, password)
def decodeurl(url):
"""Decodes an URL into the tokens (scheme, network location, path,
user, password, parameters).
"""
m = re.compile('(?P<type>[^:]*)://((?P<user>[^/;]+)@)?(?P<location>[^;]+)(;(?P<parm>.*))?').match(url)
if not m:
raise MalformedUrl(url)
type = m.group('type')
location = m.group('location')
if not location:
raise MalformedUrl(url)
user = m.group('user')
parm = m.group('parm')
locidx = location.find('/')
if locidx != -1 and type.lower() != 'file':
host = location[:locidx]
path = location[locidx:]
elif type.lower() == 'file':
host = ""
path = location
else:
host = location
path = "/"
if user:
m = re.compile('(?P<user>[^:]+)(:?(?P<pswd>.*))').match(user)
if m:
user = m.group('user')
pswd = m.group('pswd')
else:
user = ''
pswd = ''
p = collections.OrderedDict()
if parm:
for s in parm.split(';'):
if s:
if not '=' in s:
raise MalformedUrl(url, "The URL: '%s' is invalid: parameter %s does not specify a value (missing '=')" % (url, s))
s1, s2 = s.split('=')
p[s1] = s2
return type, host, urllib.parse.unquote(path), user, pswd, p
def encodeurl(decoded):
"""Encodes a URL from tokens (scheme, network location, path,
user, password, parameters).
"""
type, host, path, user, pswd, p = decoded
if not type:
raise MissingParameterError('type', "encoded from the data %s" % str(decoded))
url = '%s://' % type
if user and type != "file":
url += "%s" % user
if pswd:
url += ":%s" % pswd
url += "@"
if host and type != "file":
url += "%s" % host
if path:
# Standardise path to ensure comparisons work
while '//' in path:
path = path.replace("//", "/")
url += "%s" % urllib.parse.quote(path)
if p:
for parm in p:
url += ";%s=%s" % (parm, p[parm])
return url
def uri_replace(ud, uri_find, uri_replace, replacements, d, mirrortarball=None):
if not ud.url or not uri_find or not uri_replace:
logger.error("uri_replace: passed an undefined value, not replacing")
return None
uri_decoded = list(decodeurl(ud.url))
uri_find_decoded = list(decodeurl(uri_find))
uri_replace_decoded = list(decodeurl(uri_replace))
logger.debug(2, "For url %s comparing %s to %s" % (uri_decoded, uri_find_decoded, uri_replace_decoded))
result_decoded = ['', '', '', '', '', {}]
for loc, i in enumerate(uri_find_decoded):
result_decoded[loc] = uri_decoded[loc]
regexp = i
if loc == 0 and regexp and not regexp.endswith("$"):
# Leaving the type unanchored can mean "https" matching "file" can become "files"
# which is clearly undesirable.
regexp += "$"
if loc == 5:
# Handle URL parameters
if i:
# Any specified URL parameters must match
for k in uri_find_decoded[loc]:
if uri_decoded[loc][k] != uri_find_decoded[loc][k]:
return None
# Overwrite any specified replacement parameters
for k in uri_replace_decoded[loc]:
for l in replacements:
uri_replace_decoded[loc][k] = uri_replace_decoded[loc][k].replace(l, replacements[l])
result_decoded[loc][k] = uri_replace_decoded[loc][k]
elif (re.match(regexp, uri_decoded[loc])):
if not uri_replace_decoded[loc]:
result_decoded[loc] = ""
else:
for k in replacements:
uri_replace_decoded[loc] = uri_replace_decoded[loc].replace(k, replacements[k])
#bb.note("%s %s %s" % (regexp, uri_replace_decoded[loc], uri_decoded[loc]))
result_decoded[loc] = re.sub(regexp, uri_replace_decoded[loc], uri_decoded[loc], 1)
if loc == 2:
# Handle path manipulations
basename = None
if uri_decoded[0] != uri_replace_decoded[0] and mirrortarball:
# If the source and destination url types differ, must be a mirrortarball mapping
basename = os.path.basename(mirrortarball)
# Kill parameters, they make no sense for mirror tarballs
uri_decoded[5] = {}
elif ud.localpath and ud.method.supports_checksum(ud):
basename = os.path.basename(ud.localpath)
if basename and not result_decoded[loc].endswith(basename):
result_decoded[loc] = os.path.join(result_decoded[loc], basename)
else:
return None
result = encodeurl(result_decoded)
if result == ud.url:
return None
logger.debug(2, "For url %s returning %s" % (ud.url, result))
return result
methods = []
urldata_cache = {}
saved_headrevs = {}
def fetcher_init(d):
"""
Called to initialize the fetchers once the configuration data is known.
Calls before this must not hit the cache.
"""
revs = bb.persist_data.persist('BB_URI_HEADREVS', d)
try:
# fetcher_init is called multiple times, so make sure we only save the
# revs the first time it is called.
if not bb.fetch2.saved_headrevs:
bb.fetch2.saved_headrevs = dict(revs)
except:
pass
# When to drop SCM head revisions controlled by user policy
srcrev_policy = d.getVar('BB_SRCREV_POLICY') or "clear"
if srcrev_policy == "cache":
logger.debug(1, "Keeping SRCREV cache due to cache policy of: %s", srcrev_policy)
elif srcrev_policy == "clear":
logger.debug(1, "Clearing SRCREV cache due to cache policy of: %s", srcrev_policy)
revs.clear()
else:
raise FetchError("Invalid SRCREV cache policy of: %s" % srcrev_policy)
_checksum_cache.init_cache(d)
for m in methods:
if hasattr(m, "init"):
m.init(d)
def fetcher_parse_save():
_checksum_cache.save_extras()
def fetcher_parse_done():
_checksum_cache.save_merge()
def fetcher_compare_revisions(d):
"""
Compare the revisions in the persistent cache with the saved values from
when bitbake was started and return true if they have changed.
"""
headrevs = dict(bb.persist_data.persist('BB_URI_HEADREVS', d))
return headrevs != bb.fetch2.saved_headrevs
def mirror_from_string(data):
mirrors = (data or "").replace('\\n',' ').split()
# Split into pairs
if len(mirrors) % 2 != 0:
bb.warn('Invalid mirror data %s, should have paired members.' % data)
return list(zip(*[iter(mirrors)]*2))
def verify_checksum(ud, d, precomputed={}):
"""
verify the MD5 and SHA256 checksum for downloaded src
Raises a FetchError if one or both of the SRC_URI checksums do not match
the downloaded file, or if BB_STRICT_CHECKSUM is set and there are no
checksums specified.
Returns a dict of checksums that can be stored in a done stamp file and
passed in as precomputed parameter in a later call to avoid re-computing
the checksums from the file. This allows verifying the checksums of the
file against those in the recipe each time, rather than only after
downloading. See https://bugzilla.yoctoproject.org/show_bug.cgi?id=5571.
"""
if ud.ignore_checksums or not ud.method.supports_checksum(ud):
return {}
def compute_checksum_info(checksum_id):
checksum_name = getattr(ud, "%s_name" % checksum_id)
if checksum_id in precomputed:
checksum_data = precomputed[checksum_id]
else:
checksum_data = getattr(bb.utils, "%s_file" % checksum_id)(ud.localpath)
checksum_expected = getattr(ud, "%s_expected" % checksum_id)
return {
"id": checksum_id,
"name": checksum_name,
"data": checksum_data,
"expected": checksum_expected
}
checksum_infos = []
for checksum_id in CHECKSUM_LIST:
checksum_infos.append(compute_checksum_info(checksum_id))
checksum_dict = {ci["id"] : ci["data"] for ci in checksum_infos}
checksum_event = {"%ssum" % ci["id"] : ci["data"] for ci in checksum_infos}
for ci in checksum_infos:
if ci["id"] in SHOWN_CHECKSUM_LIST:
checksum_lines = ["SRC_URI[%s] = \"%s\"" % (ci["name"], ci["data"])]
# If no checksum has been provided
if ud.method.recommends_checksum(ud) and all(ci["expected"] is None for ci in checksum_infos):
messages = []
strict = d.getVar("BB_STRICT_CHECKSUM") or "0"
# If strict checking enabled and neither sum defined, raise error
if strict == "1":
messages.append("No checksum specified for '%s', please add at " \
"least one to the recipe:" % ud.localpath)
messages.extend(checksum_lines)
logger.error("\n".join(messages))
raise NoChecksumError("Missing SRC_URI checksum", ud.url)
bb.event.fire(MissingChecksumEvent(ud.url, **checksum_event), d)
if strict == "ignore":
return checksum_dict
# Log missing sums so user can more easily add them
messages.append("Missing checksum for '%s', consider adding at " \
"least one to the recipe:" % ud.localpath)
messages.extend(checksum_lines)
logger.warning("\n".join(messages))
# We want to alert the user if a checksum is defined in the recipe but
# it does not match.
messages = []
messages.append("Checksum mismatch!")
bad_checksum = None
for ci in checksum_infos:
if ci["expected"] and ci["expected"] != ci["data"]:
messages.append("File: '%s' has %s checksum %s when %s was " \
"expected" % (ud.localpath, ci["id"], ci["data"], ci["expected"]))
bad_checksum = ci["data"]
if bad_checksum:
messages.append("If this change is expected (e.g. you have upgraded " \
"to a new version without updating the checksums) " \
"then you can use these lines within the recipe:")
messages.extend(checksum_lines)
messages.append("Otherwise you should retry the download and/or " \
"check with upstream to determine if the file has " \
"become corrupted or otherwise unexpectedly modified.")
raise ChecksumError("\n".join(messages), ud.url, bad_checksum)
return checksum_dict
def verify_donestamp(ud, d, origud=None):
"""
Check whether the done stamp file has the right checksums (if the fetch
method supports them). If it doesn't, delete the done stamp and force
a re-download.
Returns True, if the donestamp exists and is valid, False otherwise. When
returning False, any existing done stamps are removed.
"""
if not ud.needdonestamp or (origud and not origud.needdonestamp):
return True
if not os.path.exists(ud.localpath):
# local path does not exist
if os.path.exists(ud.donestamp):
# done stamp exists, but the downloaded file does not; the done stamp
# must be incorrect, re-trigger the download
bb.utils.remove(ud.donestamp)
return False
if (not ud.method.supports_checksum(ud) or
(origud and not origud.method.supports_checksum(origud))):
# if done stamp exists and checksums not supported; assume the local
# file is current
return os.path.exists(ud.donestamp)
precomputed_checksums = {}
# Only re-use the precomputed checksums if the donestamp is newer than the
# file. Do not rely on the mtime of directories, though. If ud.localpath is
# a directory, there will probably not be any checksums anyway.
if os.path.exists(ud.donestamp) and (os.path.isdir(ud.localpath) or
os.path.getmtime(ud.localpath) < os.path.getmtime(ud.donestamp)):
try:
with open(ud.donestamp, "rb") as cachefile:
pickled = pickle.Unpickler(cachefile)
precomputed_checksums.update(pickled.load())
except Exception as e:
# Avoid the warnings on the upgrade path from emtpy done stamp
# files to those containing the checksums.
if not isinstance(e, EOFError):
# Ignore errors, they aren't fatal
logger.warning("Couldn't load checksums from donestamp %s: %s "
"(msg: %s)" % (ud.donestamp, type(e).__name__,
str(e)))
try:
checksums = verify_checksum(ud, d, precomputed_checksums)
# If the cache file did not have the checksums, compute and store them
# as an upgrade path from the previous done stamp file format.
if checksums != precomputed_checksums:
with open(ud.donestamp, "wb") as cachefile:
p = pickle.Pickler(cachefile, 2)
p.dump(checksums)
return True
except ChecksumError as e:
# Checksums failed to verify, trigger re-download and remove the
# incorrect stamp file.
logger.warning("Checksum mismatch for local file %s\n"
"Cleaning and trying again." % ud.localpath)
if os.path.exists(ud.localpath):
rename_bad_checksum(ud, e.checksum)
bb.utils.remove(ud.donestamp)
return False
def update_stamp(ud, d):
"""
donestamp is file stamp indicating the whole fetching is done
this function update the stamp after verifying the checksum
"""
if not ud.needdonestamp:
return
if os.path.exists(ud.donestamp):
# Touch the done stamp file to show active use of the download
try:
os.utime(ud.donestamp, None)
except:
# Errors aren't fatal here
pass
else:
try:
checksums = verify_checksum(ud, d)
# Store the checksums for later re-verification against the recipe
with open(ud.donestamp, "wb") as cachefile:
p = pickle.Pickler(cachefile, 2)
p.dump(checksums)
except ChecksumError as e:
# Checksums failed to verify, trigger re-download and remove the
# incorrect stamp file.
logger.warning("Checksum mismatch for local file %s\n"
"Cleaning and trying again." % ud.localpath)
if os.path.exists(ud.localpath):
rename_bad_checksum(ud, e.checksum)
bb.utils.remove(ud.donestamp)
raise
def subprocess_setup():
# Python installs a SIGPIPE handler by default. This is usually not what
# non-Python subprocesses expect.
# SIGPIPE errors are known issues with gzip/bash
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
def get_autorev(d):
# only not cache src rev in autorev case
if d.getVar('BB_SRCREV_POLICY') != "cache":
d.setVar('BB_DONT_CACHE', '1')
return "AUTOINC"
def get_srcrev(d, method_name='sortable_revision'):
"""
Return the revision string, usually for use in the version string (PV) of the current package
Most packages usually only have one SCM so we just pass on the call.
In the multi SCM case, we build a value based on SRCREV_FORMAT which must
have been set.
The idea here is that we put the string "AUTOINC+" into return value if the revisions are not
incremental, other code is then responsible for turning that into an increasing value (if needed)
A method_name can be supplied to retrieve an alternatively formatted revision from a fetcher, if
that fetcher provides a method with the given name and the same signature as sortable_revision.
"""
scms = []
fetcher = Fetch(d.getVar('SRC_URI').split(), d)
urldata = fetcher.ud
for u in urldata:
if urldata[u].method.supports_srcrev():
scms.append(u)
if len(scms) == 0:
raise FetchError("SRCREV was used yet no valid SCM was found in SRC_URI")
if len(scms) == 1 and len(urldata[scms[0]].names) == 1:
autoinc, rev = getattr(urldata[scms[0]].method, method_name)(urldata[scms[0]], d, urldata[scms[0]].names[0])
if len(rev) > 10:
rev = rev[:10]
if autoinc:
return "AUTOINC+" + rev
return rev
#
# Mutiple SCMs are in SRC_URI so we resort to SRCREV_FORMAT
#
format = d.getVar('SRCREV_FORMAT')
if not format:
raise FetchError("The SRCREV_FORMAT variable must be set when multiple SCMs are used.\n"\
"The SCMs are:\n%s" % '\n'.join(scms))
name_to_rev = {}
seenautoinc = False
for scm in scms:
ud = urldata[scm]
for name in ud.names:
autoinc, rev = getattr(ud.method, method_name)(ud, d, name)
seenautoinc = seenautoinc or autoinc
if len(rev) > 10:
rev = rev[:10]
name_to_rev[name] = rev
# Replace names by revisions in the SRCREV_FORMAT string. The approach used
# here can handle names being prefixes of other names and names appearing
# as substrings in revisions (in which case the name should not be
# expanded). The '|' regular expression operator tries matches from left to
# right, so we need to sort the names with the longest ones first.
names_descending_len = sorted(name_to_rev, key=len, reverse=True)
name_to_rev_re = "|".join(re.escape(name) for name in names_descending_len)
format = re.sub(name_to_rev_re, lambda match: name_to_rev[match.group(0)], format)
if seenautoinc:
format = "AUTOINC+" + format
return format
def localpath(url, d):
fetcher = bb.fetch2.Fetch([url], d)
return fetcher.localpath(url)
def runfetchcmd(cmd, d, quiet=False, cleanup=None, log=None, workdir=None):
"""
Run cmd returning the command output
Raise an error if interrupted or cmd fails
Optionally echo command output to stdout
Optionally remove the files/directories listed in cleanup upon failure
"""
# Need to export PATH as binary could be in metadata paths
# rather than host provided
# Also include some other variables.
# FIXME: Should really include all export varaiables?
exportvars = ['HOME', 'PATH',
'HTTP_PROXY', 'http_proxy',
'HTTPS_PROXY', 'https_proxy',
'FTP_PROXY', 'ftp_proxy',
'FTPS_PROXY', 'ftps_proxy',
'NO_PROXY', 'no_proxy',
'ALL_PROXY', 'all_proxy',
'GIT_PROXY_COMMAND',
'GIT_SSH',
'GIT_SSL_CAINFO',
'GIT_SMART_HTTP',
'SSH_AUTH_SOCK', 'SSH_AGENT_PID',
'SOCKS5_USER', 'SOCKS5_PASSWD',
'DBUS_SESSION_BUS_ADDRESS',
'P4CONFIG']
if not cleanup:
cleanup = []
# If PATH contains WORKDIR which contains PV-PR which contains SRCPV we
# can end up in circular recursion here so give the option of breaking it
# in a data store copy.
try:
d.getVar("PV")
d.getVar("PR")
except bb.data_smart.ExpansionError:
d = bb.data.createCopy(d)
d.setVar("PV", "fetcheravoidrecurse")
d.setVar("PR", "fetcheravoidrecurse")
origenv = d.getVar("BB_ORIGENV", False)
for var in exportvars:
val = d.getVar(var) or (origenv and origenv.getVar(var))
if val:
cmd = 'export ' + var + '=\"%s\"; %s' % (val, cmd)
# Ensure that a _PYTHON_SYSCONFIGDATA_NAME value set by a recipe
# (for example via python3native.bbclass since warrior) is not set for
# host Python (otherwise tools like git-make-shallow will fail)
cmd = 'unset _PYTHON_SYSCONFIGDATA_NAME; ' + cmd
# Disable pseudo as it may affect ssh, potentially causing it to hang.
cmd = 'export PSEUDO_DISABLED=1; ' + cmd
if workdir:
logger.debug(1, "Running '%s' in %s" % (cmd, workdir))
else:
logger.debug(1, "Running %s", cmd)
success = False
error_message = ""
try:
(output, errors) = bb.process.run(cmd, log=log, shell=True, stderr=subprocess.PIPE, cwd=workdir)
success = True
except bb.process.NotFoundError as e:
error_message = "Fetch command %s" % (e.command)
except bb.process.ExecutionError as e:
if e.stdout:
output = "output:\n%s\n%s" % (e.stdout, e.stderr)
elif e.stderr:
output = "output:\n%s" % e.stderr
else:
output = "no output"
error_message = "Fetch command %s failed with exit code %s, %s" % (e.command, e.exitcode, output)
except bb.process.CmdError as e:
error_message = "Fetch command %s could not be run:\n%s" % (e.command, e.msg)
if not success:
for f in cleanup:
try:
bb.utils.remove(f, True)
except OSError:
pass
raise FetchError(error_message)
return output
def check_network_access(d, info, url):
"""
log remote network access, and error if BB_NO_NETWORK is set or the given
URI is untrusted
"""
if bb.utils.to_boolean(d.getVar("BB_NO_NETWORK")):
raise NetworkAccess(url, info)
elif not trusted_network(d, url):
raise UntrustedUrl(url, info)
else:
logger.debug(1, "Fetcher accessed the network with the command %s" % info)
def build_mirroruris(origud, mirrors, ld):
uris = []
uds = []
replacements = {}
replacements["TYPE"] = origud.type
replacements["HOST"] = origud.host
replacements["PATH"] = origud.path
replacements["BASENAME"] = origud.path.split("/")[-1]
replacements["MIRRORNAME"] = origud.host.replace(':','.') + origud.path.replace('/', '.').replace('*', '.')
def adduri(ud, uris, uds, mirrors, tarballs):
for line in mirrors:
try:
(find, replace) = line
except ValueError:
continue
for tarball in tarballs:
newuri = uri_replace(ud, find, replace, replacements, ld, tarball)
if not newuri or newuri in uris or newuri == origud.url:
continue
if not trusted_network(ld, newuri):
logger.debug(1, "Mirror %s not in the list of trusted networks, skipping" % (newuri))
continue
# Create a local copy of the mirrors minus the current line
# this will prevent us from recursively processing the same line
# as well as indirect recursion A -> B -> C -> A
localmirrors = list(mirrors)
localmirrors.remove(line)
try:
newud = FetchData(newuri, ld)
newud.setup_localpath(ld)
except bb.fetch2.BBFetchException as e:
logger.debug(1, "Mirror fetch failure for url %s (original url: %s)" % (newuri, origud.url))
logger.debug(1, str(e))
try:
# setup_localpath of file:// urls may fail, we should still see
# if mirrors of the url exist
adduri(newud, uris, uds, localmirrors, tarballs)
except UnboundLocalError:
pass
continue
uris.append(newuri)
uds.append(newud)
adduri(newud, uris, uds, localmirrors, tarballs)
adduri(origud, uris, uds, mirrors, origud.mirrortarballs or [None])
return uris, uds
def rename_bad_checksum(ud, suffix):
"""
Renames files to have suffix from parameter
"""
if ud.localpath is None:
return
new_localpath = "%s_bad-checksum_%s" % (ud.localpath, suffix)
bb.warn("Renaming %s to %s" % (ud.localpath, new_localpath))
if not bb.utils.movefile(ud.localpath, new_localpath):
bb.warn("Renaming %s to %s failed, grep movefile in log.do_fetch to see why" % (ud.localpath, new_localpath))
def try_mirror_url(fetch, origud, ud, ld, check = False):
# Return of None or a value means we're finished
# False means try another url
if ud.lockfile and ud.lockfile != origud.lockfile:
lf = bb.utils.lockfile(ud.lockfile)
try:
if check:
found = ud.method.checkstatus(fetch, ud, ld)
if found:
return found
return False
if not verify_donestamp(ud, ld, origud) or ud.method.need_update(ud, ld):
ud.method.download(ud, ld)
if hasattr(ud.method,"build_mirror_data"):
ud.method.build_mirror_data(ud, ld)
if not ud.localpath or not os.path.exists(ud.localpath):
return False
if ud.localpath == origud.localpath:
return ud.localpath
# We may be obtaining a mirror tarball which needs further processing by the real fetcher
# If that tarball is a local file:// we need to provide a symlink to it
dldir = ld.getVar("DL_DIR")
if origud.mirrortarballs and os.path.basename(ud.localpath) in origud.mirrortarballs and os.path.basename(ud.localpath) != os.path.basename(origud.localpath):
# Create donestamp in old format to avoid triggering a re-download
if ud.donestamp:
bb.utils.mkdirhier(os.path.dirname(ud.donestamp))
open(ud.donestamp, 'w').close()
dest = os.path.join(dldir, os.path.basename(ud.localpath))
if not os.path.exists(dest):
# In case this is executing without any file locks held (as is
# the case for file:// URLs), two tasks may end up here at the
# same time, in which case we do not want the second task to
# fail when the link has already been created by the first task.
try:
os.symlink(ud.localpath, dest)
except FileExistsError:
pass
if not verify_donestamp(origud, ld) or origud.method.need_update(origud, ld):
origud.method.download(origud, ld)
if hasattr(origud.method, "build_mirror_data"):
origud.method.build_mirror_data(origud, ld)
return origud.localpath
# Otherwise the result is a local file:// and we symlink to it
ensure_symlink(ud.localpath, origud.localpath)
update_stamp(origud, ld)
return ud.localpath
except bb.fetch2.NetworkAccess:
raise
except IOError as e:
if e.errno in [errno.ESTALE]:
logger.warning("Stale Error Observed %s." % ud.url)
return False
raise
except bb.fetch2.BBFetchException as e:
if isinstance(e, ChecksumError):
logger.warning("Mirror checksum failure for url %s (original url: %s)\nCleaning and trying again." % (ud.url, origud.url))
logger.warning(str(e))
if os.path.exists(ud.localpath):
rename_bad_checksum(ud, e.checksum)
elif isinstance(e, NoChecksumError):
raise
else:
logger.debug(1, "Mirror fetch failure for url %s (original url: %s)" % (ud.url, origud.url))
logger.debug(1, str(e))
try:
ud.method.clean(ud, ld)
except UnboundLocalError:
pass
return False
finally:
if ud.lockfile and ud.lockfile != origud.lockfile:
bb.utils.unlockfile(lf)
def ensure_symlink(target, link_name):
if not os.path.exists(link_name):
if os.path.islink(link_name):
# Broken symbolic link
os.unlink(link_name)
# In case this is executing without any file locks held (as is
# the case for file:// URLs), two tasks may end up here at the
# same time, in which case we do not want the second task to
# fail when the link has already been created by the first task.
try:
os.symlink(target, link_name)
except FileExistsError:
pass
def try_mirrors(fetch, d, origud, mirrors, check = False):
"""
Try to use a mirrored version of the sources.
This method will be automatically called before the fetchers go.
d Is a bb.data instance
uri is the original uri we're trying to download
mirrors is the list of mirrors we're going to try
"""
ld = d.createCopy()
uris, uds = build_mirroruris(origud, mirrors, ld)
for index, uri in enumerate(uris):
ret = try_mirror_url(fetch, origud, uds[index], ld, check)
if ret:
return ret
return None
def trusted_network(d, url):
"""
Use a trusted url during download if networking is enabled and
BB_ALLOWED_NETWORKS is set globally or for a specific recipe.
Note: modifies SRC_URI & mirrors.
"""
if bb.utils.to_boolean(d.getVar("BB_NO_NETWORK")):
return True
pkgname = d.expand(d.getVar('PN', False))
trusted_hosts = None
if pkgname:
trusted_hosts = d.getVarFlag('BB_ALLOWED_NETWORKS', pkgname, False)
if not trusted_hosts:
trusted_hosts = d.getVar('BB_ALLOWED_NETWORKS')
# Not enabled.
if not trusted_hosts:
return True
scheme, network, path, user, passwd, param = decodeurl(url)
if not network:
return True
network = network.split(':')[0]
network = network.lower()
for host in trusted_hosts.split(" "):
host = host.lower()
if host.startswith("*.") and ("." + network).endswith(host[1:]):
return True
if host == network:
return True
return False
def srcrev_internal_helper(ud, d, name):
"""
Return:
a) a source revision if specified
b) latest revision if SRCREV="AUTOINC"
c) None if not specified
"""
srcrev = None
pn = d.getVar("PN")
attempts = []
if name != '' and pn:
attempts.append("SRCREV_%s_pn-%s" % (name, pn))
if name != '':
attempts.append("SRCREV_%s" % name)
if pn:
attempts.append("SRCREV_pn-%s" % pn)
attempts.append("SRCREV")
for a in attempts:
srcrev = d.getVar(a)
if srcrev and srcrev != "INVALID":
break
if 'rev' in ud.parm and 'tag' in ud.parm:
raise FetchError("Please specify a ;rev= parameter or a ;tag= parameter in the url %s but not both." % (ud.url))
if 'rev' in ud.parm or 'tag' in ud.parm:
if 'rev' in ud.parm:
parmrev = ud.parm['rev']
else:
parmrev = ud.parm['tag']
if srcrev == "INVALID" or not srcrev:
return parmrev
if srcrev != parmrev:
raise FetchError("Conflicting revisions (%s from SRCREV and %s from the url) found, please specify one valid value" % (srcrev, parmrev))
return parmrev
if srcrev == "INVALID" or not srcrev:
raise FetchError("Please set a valid SRCREV for url %s (possible key names are %s, or use a ;rev=X URL parameter)" % (str(attempts), ud.url), ud.url)
if srcrev == "AUTOINC":
srcrev = ud.method.latest_revision(ud, d, name)
return srcrev
def get_checksum_file_list(d):
""" Get a list of files checksum in SRC_URI
Returns the resolved local paths of all local file entries in
SRC_URI as a space-separated string
"""
fetch = Fetch([], d, cache = False, localonly = True)
dl_dir = d.getVar('DL_DIR')
filelist = []
for u in fetch.urls:
ud = fetch.ud[u]
if ud and isinstance(ud.method, local.Local):
paths = ud.method.localpaths(ud, d)
for f in paths:
pth = ud.decodedurl
if '*' in pth:
f = os.path.join(os.path.abspath(f), pth)
if f.startswith(dl_dir):
# The local fetcher's behaviour is to return a path under DL_DIR if it couldn't find the file anywhere else
if os.path.exists(f):
bb.warn("Getting checksum for %s SRC_URI entry %s: file not found except in DL_DIR" % (d.getVar('PN'), os.path.basename(f)))
else:
bb.warn("Unable to get checksum for %s SRC_URI entry %s: file could not be found" % (d.getVar('PN'), os.path.basename(f)))
filelist.append(f + ":" + str(os.path.exists(f)))
return " ".join(filelist)
def get_file_checksums(filelist, pn, localdirsexclude):
"""Get a list of the checksums for a list of local files
Returns the checksums for a list of local files, caching the results as
it proceeds
"""
return _checksum_cache.get_checksums(filelist, pn, localdirsexclude)
class FetchData(object):
"""
A class which represents the fetcher state for a given URI.
"""
def __init__(self, url, d, localonly = False):
# localpath is the location of a downloaded result. If not set, the file is local.
self.donestamp = None
self.needdonestamp = True
self.localfile = ""
self.localpath = None
self.lockfile = None
self.mirrortarballs = []
self.basename = None
self.basepath = None
(self.type, self.host, self.path, self.user, self.pswd, self.parm) = decodeurl(d.expand(url))
self.date = self.getSRCDate(d)
self.url = url
if not self.user and "user" in self.parm:
self.user = self.parm["user"]
if not self.pswd and "pswd" in self.parm:
self.pswd = self.parm["pswd"]
self.setup = False
def configure_checksum(checksum_id):
if "name" in self.parm:
checksum_name = "%s.%ssum" % (self.parm["name"], checksum_id)
else:
checksum_name = "%ssum" % checksum_id
setattr(self, "%s_name" % checksum_id, checksum_name)
if checksum_name in self.parm:
checksum_expected = self.parm[checksum_name]
elif self.type not in ["http", "https", "ftp", "ftps", "sftp", "s3"]:
checksum_expected = None
else:
checksum_expected = d.getVarFlag("SRC_URI", checksum_name)
setattr(self, "%s_expected" % checksum_id, checksum_expected)
for checksum_id in CHECKSUM_LIST:
configure_checksum(checksum_id)
self.ignore_checksums = False
self.names = self.parm.get("name",'default').split(',')
self.method = None
for m in methods:
if m.supports(self, d):
self.method = m
break
if not self.method:
raise NoMethodError(url)
if localonly and not isinstance(self.method, local.Local):
raise NonLocalMethod()
if self.parm.get("proto", None) and "protocol" not in self.parm:
logger.warning('Consider updating %s recipe to use "protocol" not "proto" in SRC_URI.', d.getVar('PN'))
self.parm["protocol"] = self.parm.get("proto", None)
if hasattr(self.method, "urldata_init"):
self.method.urldata_init(self, d)
if "localpath" in self.parm:
# if user sets localpath for file, use it instead.
self.localpath = self.parm["localpath"]
self.basename = os.path.basename(self.localpath)
elif self.localfile:
self.localpath = self.method.localpath(self, d)
dldir = d.getVar("DL_DIR")
if not self.needdonestamp:
return
# Note: .done and .lock files should always be in DL_DIR whereas localpath may not be.
if self.localpath and self.localpath.startswith(dldir):
basepath = self.localpath
elif self.localpath:
basepath = dldir + os.sep + os.path.basename(self.localpath)
elif self.basepath or self.basename:
basepath = dldir + os.sep + (self.basepath or self.basename)
else:
bb.fatal("Can't determine lock path for url %s" % url)
self.donestamp = basepath + '.done'
self.lockfile = basepath + '.lock'
def setup_revisions(self, d):
self.revisions = {}
for name in self.names:
self.revisions[name] = srcrev_internal_helper(self, d, name)
# add compatibility code for non name specified case
if len(self.names) == 1:
self.revision = self.revisions[self.names[0]]
def setup_localpath(self, d):
if not self.localpath:
self.localpath = self.method.localpath(self, d)
def getSRCDate(self, d):
"""
Return the SRC Date for the component
d the bb.data module
"""
if "srcdate" in self.parm:
return self.parm['srcdate']
pn = d.getVar("PN")
if pn:
return d.getVar("SRCDATE_%s" % pn) or d.getVar("SRCDATE") or d.getVar("DATE")
return d.getVar("SRCDATE") or d.getVar("DATE")
class FetchMethod(object):
"""Base class for 'fetch'ing data"""
def __init__(self, urls=None):
self.urls = []
def supports(self, urldata, d):
"""
Check to see if this fetch class supports a given url.
"""
return 0
def localpath(self, urldata, d):
"""
Return the local filename of a given url assuming a successful fetch.
Can also setup variables in urldata for use in go (saving code duplication
and duplicate code execution)
"""
return os.path.join(d.getVar("DL_DIR"), urldata.localfile)
def supports_checksum(self, urldata):
"""
Is localpath something that can be represented by a checksum?
"""
# We cannot compute checksums for directories
if os.path.isdir(urldata.localpath):
return False
if urldata.localpath.find("*") != -1:
return False
return True
def recommends_checksum(self, urldata):
"""
Is the backend on where checksumming is recommended (should warnings
be displayed if there is no checksum)?
"""
return False
def verify_donestamp(self, ud, d):
"""
Verify the donestamp file
"""
return verify_donestamp(ud, d)
def update_donestamp(self, ud, d):
"""
Update the donestamp file
"""
update_stamp(ud, d)
def _strip_leading_slashes(self, relpath):
"""
Remove leading slash as os.path.join can't cope
"""
while os.path.isabs(relpath):
relpath = relpath[1:]
return relpath
def setUrls(self, urls):
self.__urls = urls
def getUrls(self):
return self.__urls
urls = property(getUrls, setUrls, None, "Urls property")
def need_update(self, ud, d):
"""
Force a fetch, even if localpath exists?
"""
if os.path.exists(ud.localpath):
return False
return True
def supports_srcrev(self):
"""
The fetcher supports auto source revisions (SRCREV)
"""
return False
def download(self, urldata, d):
"""
Fetch urls
Assumes localpath was called first
"""
raise NoMethodError(urldata.url)
def unpack(self, urldata, rootdir, data):
iterate = False
file = urldata.localpath
# Localpath can't deal with 'dir/*' entries, so it converts them to '.',
# but it must be corrected back for local files copying
if urldata.basename == '*' and file.endswith('/.'):
file = '%s/%s' % (file.rstrip('/.'), urldata.path)
try:
unpack = bb.utils.to_boolean(urldata.parm.get('unpack'), True)
except ValueError as exc:
bb.fatal("Invalid value for 'unpack' parameter for %s: %s" %
(file, urldata.parm.get('unpack')))
base, ext = os.path.splitext(file)
if ext in ['.gz', '.bz2', '.Z', '.xz', '.lz']:
efile = os.path.join(rootdir, os.path.basename(base))
else:
efile = file
cmd = None
if unpack:
if file.endswith('.tar'):
cmd = 'tar x --no-same-owner -f %s' % file
elif file.endswith('.tgz') or file.endswith('.tar.gz') or file.endswith('.tar.Z'):
cmd = 'tar xz --no-same-owner -f %s' % file
elif file.endswith('.tbz') or file.endswith('.tbz2') or file.endswith('.tar.bz2'):
cmd = 'bzip2 -dc %s | tar x --no-same-owner -f -' % file
elif file.endswith('.gz') or file.endswith('.Z') or file.endswith('.z'):
cmd = 'gzip -dc %s > %s' % (file, efile)
elif file.endswith('.bz2'):
cmd = 'bzip2 -dc %s > %s' % (file, efile)
elif file.endswith('.txz') or file.endswith('.tar.xz'):
cmd = 'xz -dc %s | tar x --no-same-owner -f -' % file
elif file.endswith('.xz'):
cmd = 'xz -dc %s > %s' % (file, efile)
elif file.endswith('.tar.lz'):
cmd = 'lzip -dc %s | tar x --no-same-owner -f -' % file
elif file.endswith('.lz'):
cmd = 'lzip -dc %s > %s' % (file, efile)
elif file.endswith('.tar.7z'):
cmd = '7z x -so %s | tar x --no-same-owner -f -' % file
elif file.endswith('.7z'):
cmd = '7za x -y %s 1>/dev/null' % file
elif file.endswith('.zip') or file.endswith('.jar'):
try:
dos = bb.utils.to_boolean(urldata.parm.get('dos'), False)
except ValueError as exc:
bb.fatal("Invalid value for 'dos' parameter for %s: %s" %
(file, urldata.parm.get('dos')))
cmd = 'unzip -q -o'
if dos:
cmd = '%s -a' % cmd
cmd = "%s '%s'" % (cmd, file)
elif file.endswith('.rpm') or file.endswith('.srpm'):
if 'extract' in urldata.parm:
unpack_file = urldata.parm.get('extract')
cmd = 'rpm2cpio.sh %s | cpio -id %s' % (file, unpack_file)
iterate = True
iterate_file = unpack_file
else:
cmd = 'rpm2cpio.sh %s | cpio -id' % (file)
elif file.endswith('.deb') or file.endswith('.ipk'):
output = subprocess.check_output(['ar', '-t', file], preexec_fn=subprocess_setup)
datafile = None
if output:
for line in output.decode().splitlines():
if line.startswith('data.tar.'):
datafile = line
break
else:
raise UnpackError("Unable to unpack deb/ipk package - does not contain data.tar.* file", urldata.url)
else:
raise UnpackError("Unable to unpack deb/ipk package - could not list contents", urldata.url)
cmd = 'ar x %s %s && tar --no-same-owner -xpf %s && rm %s' % (file, datafile, datafile, datafile)
# If 'subdir' param exists, create a dir and use it as destination for unpack cmd
if 'subdir' in urldata.parm:
subdir = urldata.parm.get('subdir')
if os.path.isabs(subdir):
if not os.path.realpath(subdir).startswith(os.path.realpath(rootdir)):
raise UnpackError("subdir argument isn't a subdirectory of unpack root %s" % rootdir, urldata.url)
unpackdir = subdir
else:
unpackdir = os.path.join(rootdir, subdir)
bb.utils.mkdirhier(unpackdir)
else:
unpackdir = rootdir
if not unpack or not cmd:
# If file == dest, then avoid any copies, as we already put the file into dest!
dest = os.path.join(unpackdir, os.path.basename(file))
if file != dest and not (os.path.exists(dest) and os.path.samefile(file, dest)):
destdir = '.'
# For file:// entries all intermediate dirs in path must be created at destination
if urldata.type == "file":
# Trailing '/' does a copying to wrong place
urlpath = urldata.path.rstrip('/')
# Want files places relative to cwd so no leading '/'
urlpath = urlpath.lstrip('/')
if urlpath.find("/") != -1:
destdir = urlpath.rsplit("/", 1)[0] + '/'
bb.utils.mkdirhier("%s/%s" % (unpackdir, destdir))
cmd = 'cp -fpPRH %s %s' % (file, destdir)
if not cmd:
return
path = data.getVar('PATH')
if path:
cmd = "PATH=\"%s\" %s" % (path, cmd)
bb.note("Unpacking %s to %s/" % (file, unpackdir))
ret = subprocess.call(cmd, preexec_fn=subprocess_setup, shell=True, cwd=unpackdir)
if ret != 0:
raise UnpackError("Unpack command %s failed with return value %s" % (cmd, ret), urldata.url)
if iterate is True:
iterate_urldata = urldata
iterate_urldata.localpath = "%s/%s" % (rootdir, iterate_file)
self.unpack(urldata, rootdir, data)
return
def clean(self, urldata, d):
"""
Clean any existing full or partial download
"""
bb.utils.remove(urldata.localpath)
def try_premirror(self, urldata, d):
"""
Should premirrors be used?
"""
return True
def try_mirrors(self, fetch, urldata, d, mirrors, check=False):
"""
Try to use a mirror
"""
return bool(try_mirrors(fetch, d, urldata, mirrors, check))
def checkstatus(self, fetch, urldata, d):
"""
Check the status of a URL
Assumes localpath was called first
"""
logger.info("URL %s could not be checked for status since no method exists.", urldata.url)
return True
def latest_revision(self, ud, d, name):
"""
Look in the cache for the latest revision, if not present ask the SCM.
"""
if not hasattr(self, "_latest_revision"):
raise ParameterError("The fetcher for this URL does not support _latest_revision", ud.url)
revs = bb.persist_data.persist('BB_URI_HEADREVS', d)
key = self.generate_revision_key(ud, d, name)
try:
return revs[key]
except KeyError:
revs[key] = rev = self._latest_revision(ud, d, name)
return rev
def sortable_revision(self, ud, d, name):
latest_rev = self._build_revision(ud, d, name)
return True, str(latest_rev)
def generate_revision_key(self, ud, d, name):
return self._revision_key(ud, d, name)
def latest_versionstring(self, ud, d):
"""
Compute the latest release name like "x.y.x" in "x.y.x+gitHASH"
by searching through the tags output of ls-remote, comparing
versions and returning the highest match as a (version, revision) pair.
"""
return ('', '')
def done(self, ud, d):
"""
Is the download done ?
"""
if os.path.exists(ud.localpath):
return True
if ud.localpath.find("*") != -1:
return True
return False
class Fetch(object):
def __init__(self, urls, d, cache = True, localonly = False, connection_cache = None):
if localonly and cache:
raise Exception("bb.fetch2.Fetch.__init__: cannot set cache and localonly at same time")
if len(urls) == 0:
urls = d.getVar("SRC_URI").split()
self.urls = urls
self.d = d
self.ud = {}
self.connection_cache = connection_cache
fn = d.getVar('FILE')
mc = d.getVar('__BBMULTICONFIG') or ""
key = None
if cache and fn:
key = mc + fn + str(id(d))
if key in urldata_cache:
self.ud = urldata_cache[key]
for url in urls:
if url not in self.ud:
try:
self.ud[url] = FetchData(url, d, localonly)
except NonLocalMethod:
if localonly:
self.ud[url] = None
pass
if key:
urldata_cache[key] = self.ud
def localpath(self, url):
if url not in self.urls:
self.ud[url] = FetchData(url, self.d)
self.ud[url].setup_localpath(self.d)
return self.d.expand(self.ud[url].localpath)
def localpaths(self):
"""
Return a list of the local filenames, assuming successful fetch
"""
local = []
for u in self.urls:
ud = self.ud[u]
ud.setup_localpath(self.d)
local.append(ud.localpath)
return local
def download(self, urls=None):
"""
Fetch all urls
"""
if not urls:
urls = self.urls
network = self.d.getVar("BB_NO_NETWORK")
premirroronly = bb.utils.to_boolean(self.d.getVar("BB_FETCH_PREMIRRORONLY"))
for u in urls:
ud = self.ud[u]
ud.setup_localpath(self.d)
m = ud.method
done = False
if ud.lockfile:
lf = bb.utils.lockfile(ud.lockfile)
try:
self.d.setVar("BB_NO_NETWORK", network)
if m.verify_donestamp(ud, self.d) and not m.need_update(ud, self.d):
done = True
elif m.try_premirror(ud, self.d):
logger.debug(1, "Trying PREMIRRORS")
mirrors = mirror_from_string(self.d.getVar('PREMIRRORS'))
done = m.try_mirrors(self, ud, self.d, mirrors)
if done:
try:
# early checksum verification so that if the checksum of the premirror
# contents mismatch the fetcher can still try upstream and mirrors
m.update_donestamp(ud, self.d)
except ChecksumError as e:
logger.warning("Checksum failure encountered with premirror download of %s - will attempt other sources." % u)
logger.debug(1, str(e))
done = False
if premirroronly:
self.d.setVar("BB_NO_NETWORK", "1")
firsterr = None
verified_stamp = m.verify_donestamp(ud, self.d)
if not done and (not verified_stamp or m.need_update(ud, self.d)):
try:
if not trusted_network(self.d, ud.url):
raise UntrustedUrl(ud.url)
logger.debug(1, "Trying Upstream")
m.download(ud, self.d)
if hasattr(m, "build_mirror_data"):
m.build_mirror_data(ud, self.d)
done = True
# early checksum verify, so that if checksum mismatched,
# fetcher still have chance to fetch from mirror
m.update_donestamp(ud, self.d)
except bb.fetch2.NetworkAccess:
raise
except BBFetchException as e:
if isinstance(e, ChecksumError):
logger.warning("Checksum failure encountered with download of %s - will attempt other sources if available" % u)
logger.debug(1, str(e))
if os.path.exists(ud.localpath):
rename_bad_checksum(ud, e.checksum)
elif isinstance(e, NoChecksumError):
raise
else:
logger.warning('Failed to fetch URL %s, attempting MIRRORS if available' % u)
logger.debug(1, str(e))
firsterr = e
# Remove any incomplete fetch
if not verified_stamp:
m.clean(ud, self.d)
logger.debug(1, "Trying MIRRORS")
mirrors = mirror_from_string(self.d.getVar('MIRRORS'))
done = m.try_mirrors(self, ud, self.d, mirrors)
if not done or not m.done(ud, self.d):
if firsterr:
logger.error(str(firsterr))
raise FetchError("Unable to fetch URL from any source.", u)
m.update_donestamp(ud, self.d)
except IOError as e:
if e.errno in [errno.ESTALE]:
logger.error("Stale Error Observed %s." % u)
raise ChecksumError("Stale Error Detected")
except BBFetchException as e:
if isinstance(e, ChecksumError):
logger.error("Checksum failure fetching %s" % u)
raise
finally:
if ud.lockfile:
bb.utils.unlockfile(lf)
def checkstatus(self, urls=None):
"""
Check all urls exist upstream
"""
if not urls:
urls = self.urls
for u in urls:
ud = self.ud[u]
ud.setup_localpath(self.d)
m = ud.method
logger.debug(1, "Testing URL %s", u)
# First try checking uri, u, from PREMIRRORS
mirrors = mirror_from_string(self.d.getVar('PREMIRRORS'))
ret = m.try_mirrors(self, ud, self.d, mirrors, True)
if not ret:
# Next try checking from the original uri, u
ret = m.checkstatus(self, ud, self.d)
if not ret:
# Finally, try checking uri, u, from MIRRORS
mirrors = mirror_from_string(self.d.getVar('MIRRORS'))
ret = m.try_mirrors(self, ud, self.d, mirrors, True)
if not ret:
raise FetchError("URL %s doesn't work" % u, u)
def unpack(self, root, urls=None):
"""
Unpack urls to root
"""
if not urls:
urls = self.urls
for u in urls:
ud = self.ud[u]
ud.setup_localpath(self.d)
if ud.lockfile:
lf = bb.utils.lockfile(ud.lockfile)
ud.method.unpack(ud, root, self.d)
if ud.lockfile:
bb.utils.unlockfile(lf)
def clean(self, urls=None):
"""
Clean files that the fetcher gets or places
"""
if not urls:
urls = self.urls
for url in urls:
if url not in self.ud:
self.ud[url] = FetchData(url, self.d)
ud = self.ud[url]
ud.setup_localpath(self.d)
if not ud.localfile and ud.localpath is None:
continue
if ud.lockfile:
lf = bb.utils.lockfile(ud.lockfile)
ud.method.clean(ud, self.d)
if ud.donestamp:
bb.utils.remove(ud.donestamp)
if ud.lockfile:
bb.utils.unlockfile(lf)
class FetchConnectionCache(object):
"""
A class which represents an container for socket connections.
"""
def __init__(self):
self.cache = {}
def get_connection_name(self, host, port):
return host + ':' + str(port)
def add_connection(self, host, port, connection):
cn = self.get_connection_name(host, port)
if cn not in self.cache:
self.cache[cn] = connection
def get_connection(self, host, port):
connection = None
cn = self.get_connection_name(host, port)
if cn in self.cache:
connection = self.cache[cn]
return connection
def remove_connection(self, host, port):
cn = self.get_connection_name(host, port)
if cn in self.cache:
self.cache[cn].close()
del self.cache[cn]
def close_connections(self):
for cn in list(self.cache.keys()):
self.cache[cn].close()
del self.cache[cn]
from . import cvs
from . import git
from . import gitsm
from . import gitannex
from . import local
from . import svn
from . import wget
from . import ssh
from . import sftp
from . import s3
from . import perforce
from . import bzr
from . import hg
from . import osc
from . import repo
from . import clearcase
from . import npm
from . import npmsw
methods.append(local.Local())
methods.append(wget.Wget())
methods.append(svn.Svn())
methods.append(git.Git())
methods.append(gitsm.GitSM())
methods.append(gitannex.GitANNEX())
methods.append(cvs.Cvs())
methods.append(ssh.SSH())
methods.append(sftp.SFTP())
methods.append(s3.S3())
methods.append(perforce.Perforce())
methods.append(bzr.Bzr())
methods.append(hg.Hg())
methods.append(osc.Osc())
methods.append(repo.Repo())
methods.append(clearcase.ClearCase())
methods.append(npm.Npm())
methods.append(npmsw.NpmShrinkWrap())
|