FazBrowse GitHub Viewer
|
Trending
|
URL:
|
Home
Tools:
[Download Repo ZIP]
[View Raw Code]
[Original HTTPS Page]
Source.Python/addons/source-python/Python3/urllib/parse.py at main · CookStar/Source.Python · GitHub
CookStar
Source.Python
Repository navigation
Code
Issues
Pull requests
Actions
Projects
Security and quality
Insights
Expand file tree
Breadcrumbs
Source.Python
/
addons
/
source-python
/
Python3
/
urllib
/
parse.py
Copy path
More file actions
More file actions
Latest commit
History
History
History
1009 lines (862 loc) · 35.6 KB
Breadcrumbs
Source.Python
/
addons
/
source-python
/
Python3
/
urllib
/
parse.py
Copy path
File metadata and controls
1009 lines (862 loc) · 35.6 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
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
"""Parse (absolute and relative) URLs.
urlparse module is based upon the following RFC specifications.
RFC 3986 (STD66): "Uniform Resource Identifiers" by T. Berners-Lee, R. Fielding
and L. Masinter, January 2005.
RFC 2732 : "Format for Literal IPv6 Addresses in URL's by R.Hinden, B.Carpenter
and L.Masinter, December 1999.
RFC 2396: "Uniform Resource Identifiers (URI)": Generic Syntax by T.
Berners-Lee, R. Fielding, and L. Masinter, August 1998.
RFC 2368: "The mailto URL scheme", by P.Hoffman , L Masinter, J. Zawinski, July 1998.
RFC 1808: "Relative Uniform Resource Locators", by R. Fielding, UC Irvine, June
1995.
RFC 1738: "Uniform Resource Locators (URL)" by T. Berners-Lee, L. Masinter, M.
McCahill, December 1994
RFC 3986 is considered the current standard and any future changes to
urlparse module should conform with it. The urlparse module is
currently not entirely compliant with this RFC due to defacto
scenarios for parsing, and for backward compatibility purposes, some
parsing quirks from older RFCs are retained. The testcases in
test_urlparse.py provides a good indicator of parsing behavior.
"""
import
re
import
sys
import
collections
__all__
=
[
"urlparse"
,
"urlunparse"
,
"urljoin"
,
"urldefrag"
,
"urlsplit"
,
"urlunsplit"
,
"urlencode"
,
"parse_qs"
,
"parse_qsl"
,
"quote"
,
"quote_plus"
,
"quote_from_bytes"
,
"unquote"
,
"unquote_plus"
,
"unquote_to_bytes"
,
"DefragResult"
,
"ParseResult"
,
"SplitResult"
,
"DefragResultBytes"
,
"ParseResultBytes"
,
"SplitResultBytes"
]
# A classification of schemes ('' means apply by default)
uses_relative
=
[
'ftp'
,
'http'
,
'gopher'
,
'nntp'
,
'imap'
,
'wais'
,
'file'
,
'https'
,
'shttp'
,
'mms'
,
'prospero'
,
'rtsp'
,
'rtspu'
,
''
,
'sftp'
,
'svn'
,
'svn+ssh'
,
'ws'
,
'wss'
]
uses_netloc
=
[
'ftp'
,
'http'
,
'gopher'
,
'nntp'
,
'telnet'
,
'imap'
,
'wais'
,
'file'
,
'mms'
,
'https'
,
'shttp'
,
'snews'
,
'prospero'
,
'rtsp'
,
'rtspu'
,
'rsync'
,
''
,
'svn'
,
'svn+ssh'
,
'sftp'
,
'nfs'
,
'git'
,
'git+ssh'
,
'ws'
,
'wss'
]
uses_params
=
[
'ftp'
,
'hdl'
,
'prospero'
,
'http'
,
'imap'
,
'https'
,
'shttp'
,
'rtsp'
,
'rtspu'
,
'sip'
,
'sips'
,
'mms'
,
''
,
'sftp'
,
'tel'
]
# These are not actually used anymore, but should stay for backwards
# compatibility. (They are undocumented, but have a public-looking name.)
non_hierarchical
=
[
'gopher'
,
'hdl'
,
'mailto'
,
'news'
,
'telnet'
,
'wais'
,
'imap'
,
'snews'
,
'sip'
,
'sips'
]
uses_query
=
[
'http'
,
'wais'
,
'imap'
,
'https'
,
'shttp'
,
'mms'
,
'gopher'
,
'rtsp'
,
'rtspu'
,
'sip'
,
'sips'
,
''
]
uses_fragment
=
[
'ftp'
,
'hdl'
,
'http'
,
'gopher'
,
'news'
,
'nntp'
,
'wais'
,
'https'
,
'shttp'
,
'snews'
,
'file'
,
'prospero'
,
''
]
# Characters valid in scheme names
scheme_chars
=
(
'abcdefghijklmnopqrstuvwxyz'
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
'0123456789'
'+-.'
)
# XXX: Consider replacing with functools.lru_cache
MAX_CACHE_SIZE
=
20
_parse_cache
=
{}
def
clear_cache
():
"""Clear the parse cache and the quoters cache."""
_parse_cache
.
clear
()
_safe_quoters
.
clear
()
# Helpers for bytes handling
# For 3.2, we deliberately require applications that
# handle improperly quoted URLs to do their own
# decoding and encoding. If valid use cases are
# presented, we may relax this by using latin-1
# decoding internally for 3.3
_implicit_encoding
=
'ascii'
_implicit_errors
=
'strict'
def
_noop
(
obj
):
return
obj
def
_encode_result
(
obj
,
encoding
=
_implicit_encoding
,
errors
=
_implicit_errors
):
return
obj
.
encode
(
encoding
,
errors
)
def
_decode_args
(
args
,
encoding
=
_implicit_encoding
,
errors
=
_implicit_errors
):
return
tuple
(
x
.
decode
(
encoding
,
errors
)
if
x
else
''
for
x
in
args
)
def
_coerce_args
(
*
args
):
# Invokes decode if necessary to create str args
# and returns the coerced inputs along with
# an appropriate result coercion function
# - noop for str inputs
# - encoding function otherwise
str_input
=
isinstance
(
args
[
0
],
str
)
for
arg
in
args
[
1
:]:
# We special-case the empty string to support the
# "scheme=''" default argument to some functions
if
arg
and
isinstance
(
arg
,
str
)
!=
str_input
:
raise
TypeError
(
"Cannot mix str and non-str arguments"
)
if
str_input
:
return
args
+
(
_noop
,)
return
_decode_args
(
args
)
+
(
_encode_result
,)
# Result objects are more helpful than simple tuples
class
_ResultMixinStr
(
object
):
"""Standard approach to encoding parsed results from str to bytes"""
__slots__
=
()
def
encode
(
self
,
encoding
=
'ascii'
,
errors
=
'strict'
):
return
self
.
_encoded_counterpart
(
*
(
x
.
encode
(
encoding
,
errors
)
for
x
in
self
))
class
_ResultMixinBytes
(
object
):
"""Standard approach to decoding parsed results from bytes to str"""
__slots__
=
()
def
decode
(
self
,
encoding
=
'ascii'
,
errors
=
'strict'
):
return
self
.
_decoded_counterpart
(
*
(
x
.
decode
(
encoding
,
errors
)
for
x
in
self
))
class
_NetlocResultMixinBase
(
object
):
"""Shared methods for the parsed result objects containing a netloc element"""
__slots__
=
()
@
property
def
username
(
self
):
return
self
.
_userinfo
[
0
]
@
property
def
password
(
self
):
return
self
.
_userinfo
[
1
]
@
property
def
hostname
(
self
):
hostname
=
self
.
_hostinfo
[
0
]
if
not
hostname
:
hostname
=
None
elif
hostname
is
not
None
:
hostname
=
hostname
.
lower
()
return
hostname
@
property
def
port
(
self
):
port
=
self
.
_hostinfo
[
1
]
if
port
is
not
None
:
port
=
int
(
port
,
10
)
if
not
(
0
<=
port
<=
65535
):
raise
ValueError
(
"Port out of range 0-65535"
)
return
port
class
_NetlocResultMixinStr
(
_NetlocResultMixinBase
,
_ResultMixinStr
):
__slots__
=
()
@
property
def
_userinfo
(
self
):
netloc
=
self
.
netloc
userinfo
,
have_info
,
hostinfo
=
netloc
.
rpartition
(
'@'
)
if
have_info
:
username
,
have_password
,
password
=
userinfo
.
partition
(
':'
)
if
not
have_password
:
password
=
None
else
:
username
=
password
=
None
return
username
,
password
@
property
def
_hostinfo
(
self
):
netloc
=
self
.
netloc
_
,
_
,
hostinfo
=
netloc
.
rpartition
(
'@'
)
_
,
have_open_br
,
bracketed
=
hostinfo
.
partition
(
'['
)
if
have_open_br
:
hostname
,
_
,
port
=
bracketed
.
partition
(
']'
)
_
,
_
,
port
=
port
.
partition
(
':'
)
else
:
hostname
,
_
,
port
=
hostinfo
.
partition
(
':'
)
if
not
port
:
port
=
None
return
hostname
,
port
class
_NetlocResultMixinBytes
(
_NetlocResultMixinBase
,
_ResultMixinBytes
):
__slots__
=
()
@
property
def
_userinfo
(
self
):
netloc
=
self
.
netloc
userinfo
,
have_info
,
hostinfo
=
netloc
.
rpartition
(
b'@'
)
if
have_info
:
username
,
have_password
,
password
=
userinfo
.
partition
(
b':'
)
if
not
have_password
:
password
=
None
else
:
username
=
password
=
None
return
username
,
password
@
property
def
_hostinfo
(
self
):
netloc
=
self
.
netloc
_
,
_
,
hostinfo
=
netloc
.
rpartition
(
b'@'
)
_
,
have_open_br
,
bracketed
=
hostinfo
.
partition
(
b'['
)
if
have_open_br
:
hostname
,
_
,
port
=
bracketed
.
partition
(
b']'
)
_
,
_
,
port
=
port
.
partition
(
b':'
)
else
:
hostname
,
_
,
port
=
hostinfo
.
partition
(
b':'
)
if
not
port
:
port
=
None
return
hostname
,
port
from
collections
import
namedtuple
_DefragResultBase
=
namedtuple
(
'DefragResult'
,
'url fragment'
)
_SplitResultBase
=
namedtuple
(
'SplitResult'
,
'scheme netloc path query fragment'
)
_ParseResultBase
=
namedtuple
(
'ParseResult'
,
'scheme netloc path params query fragment'
)
_DefragResultBase
.
__doc__
=
"""
DefragResult(url, fragment)
A 2-tuple that contains the url without fragment identifier and the fragment
identifier as a separate argument.
"""
_DefragResultBase
.
url
.
__doc__
=
"""The URL with no fragment identifier."""
_DefragResultBase
.
fragment
.
__doc__
=
"""
Fragment identifier separated from URL, that allows indirect identification of a
secondary resource by reference to a primary resource and additional identifying
information.
"""
_SplitResultBase
.
__doc__
=
"""
SplitResult(scheme, netloc, path, query, fragment)
A 5-tuple that contains the different components of a URL. Similar to
ParseResult, but does not split params.
"""
_SplitResultBase
.
scheme
.
__doc__
=
"""Specifies URL scheme for the request."""
_SplitResultBase
.
netloc
.
__doc__
=
"""
Network location where the request is made to.
"""
_SplitResultBase
.
path
.
__doc__
=
"""
The hierarchical path, such as the path to a file to download.
"""
_SplitResultBase
.
query
.
__doc__
=
"""
The query component, that contains non-hierarchical data, that along with data
in path component, identifies a resource in the scope of URI's scheme and
network location.
"""
_SplitResultBase
.
fragment
.
__doc__
=
"""
Fragment identifier, that allows indirect identification of a secondary resource
by reference to a primary resource and additional identifying information.
"""
_ParseResultBase
.
__doc__
=
"""
ParseResult(scheme, netloc, path, params, query, fragment)
A 6-tuple that contains components of a parsed URL.
"""
_ParseResultBase
.
scheme
.
__doc__
=
_SplitResultBase
.
scheme
.
__doc__
_ParseResultBase
.
netloc
.
__doc__
=
_SplitResultBase
.
netloc
.
__doc__
_ParseResultBase
.
path
.
__doc__
=
_SplitResultBase
.
path
.
__doc__
_ParseResultBase
.
params
.
__doc__
=
"""
Parameters for last path element used to dereference the URI in order to provide
access to perform some operation on the resource.
"""
_ParseResultBase
.
query
.
__doc__
=
_SplitResultBase
.
query
.
__doc__
_ParseResultBase
.
fragment
.
__doc__
=
_SplitResultBase
.
fragment
.
__doc__
# For backwards compatibility, alias _NetlocResultMixinStr
# ResultBase is no longer part of the documented API, but it is
# retained since deprecating it isn't worth the hassle
ResultBase
=
_NetlocResultMixinStr
# Structured result objects for string data
class
DefragResult
(
_DefragResultBase
,
_ResultMixinStr
):
__slots__
=
()
def
geturl
(
self
):
if
self
.
fragment
:
return
self
.
url
+
'#'
+
self
.
fragment
else
:
return
self
.
url
class
SplitResult
(
_SplitResultBase
,
_NetlocResultMixinStr
):
__slots__
=
()
def
geturl
(
self
):
return
urlunsplit
(
self
)
class
ParseResult
(
_ParseResultBase
,
_NetlocResultMixinStr
):
__slots__
=
()
def
geturl
(
self
):
return
urlunparse
(
self
)
# Structured result objects for bytes data
class
DefragResultBytes
(
_DefragResultBase
,
_ResultMixinBytes
):
__slots__
=
()
def
geturl
(
self
):
if
self
.
fragment
:
return
self
.
url
+
b'#'
+
self
.
fragment
else
:
return
self
.
url
class
SplitResultBytes
(
_SplitResultBase
,
_NetlocResultMixinBytes
):
__slots__
=
()
def
geturl
(
self
):
return
urlunsplit
(
self
)
class
ParseResultBytes
(
_ParseResultBase
,
_NetlocResultMixinBytes
):
__slots__
=
()
def
geturl
(
self
):
return
urlunparse
(
self
)
# Set up the encode/decode result pairs
def
_fix_result_transcoding
():
_result_pairs
=
(
(
DefragResult
,
DefragResultBytes
),
(
SplitResult
,
SplitResultBytes
),
(
ParseResult
,
ParseResultBytes
),
)
for
_decoded
,
_encoded
in
_result_pairs
:
_decoded
.
_encoded_counterpart
=
_encoded
_encoded
.
_decoded_counterpart
=
_decoded
_fix_result_transcoding
()
del
_fix_result_transcoding
def
urlparse
(
url
,
scheme
=
''
,
allow_fragments
=
True
):
"""Parse a URL into 6 components:
<scheme>://<netloc>/<path>;<params>?<query>#<fragment>
Return a 6-tuple: (scheme, netloc, path, params, query, fragment).
Note that we don't break the components up in smaller bits
(e.g. netloc is a single string) and we don't expand % escapes."""
url
,
scheme
,
_coerce_result
=
_coerce_args
(
url
,
scheme
)
splitresult
=
urlsplit
(
url
,
scheme
,
allow_fragments
)
scheme
,
netloc
,
url
,
query
,
fragment
=
splitresult
if
scheme
in
uses_params
and
';'
in
url
:
url
,
params
=
_splitparams
(
url
)
else
:
params
=
''
result
=
ParseResult
(
scheme
,
netloc
,
url
,
params
,
query
,
fragment
)
return
_coerce_result
(
result
)
def
_splitparams
(
url
):
if
'/'
in
url
:
i
=
url
.
find
(
';'
,
url
.
rfind
(
'/'
))
if
i
<
0
:
return
url
,
''
else
:
i
=
url
.
find
(
';'
)
return
url
[:
i
],
url
[
i
+
1
:]
def
_splitnetloc
(
url
,
start
=
0
):
delim
=
len
(
url
)
# position of end of domain part of url, default is end
for
c
in
'/?#'
:
# look for delimiters; the order is NOT important
wdelim
=
url
.
find
(
c
,
start
)
# find first of this delim
if
wdelim
>=
0
:
# if found
delim
=
min
(
delim
,
wdelim
)
# use earliest delim position
return
url
[
start
:
delim
],
url
[
delim
:]
# return (domain, rest)
def
urlsplit
(
url
,
scheme
=
''
,
allow_fragments
=
True
):
"""Parse a URL into 5 components:
<scheme>://<netloc>/<path>?<query>#<fragment>
Return a 5-tuple: (scheme, netloc, path, query, fragment).
Note that we don't break the components up in smaller bits
(e.g. netloc is a single string) and we don't expand % escapes."""
url
,
scheme
,
_coerce_result
=
_coerce_args
(
url
,
scheme
)
allow_fragments
=
bool
(
allow_fragments
)
key
=
url
,
scheme
,
allow_fragments
,
type
(
url
),
type
(
scheme
)
cached
=
_parse_cache
.
get
(
key
,
None
)
if
cached
:
return
_coerce_result
(
cached
)
if
len
(
_parse_cache
)
>=
MAX_CACHE_SIZE
:
# avoid runaway growth
clear_cache
()
netloc
=
query
=
fragment
=
''
i
=
url
.
find
(
':'
)
if
i
>
0
:
if
url
[:
i
]
==
'http'
:
# optimize the common case
scheme
=
url
[:
i
].
lower
()
url
=
url
[
i
+
1
:]
if
url
[:
2
]
==
'//'
:
netloc
,
url
=
_splitnetloc
(
url
,
2
)
if
((
'['
in
netloc
and
']'
not
in
netloc
)
or
(
']'
in
netloc
and
'['
not
in
netloc
)):
raise
ValueError
(
"Invalid IPv6 URL"
)
if
allow_fragments
and
'#'
in
url
:
url
,
fragment
=
url
.
split
(
'#'
,
1
)
if
'?'
in
url
:
url
,
query
=
url
.
split
(
'?'
,
1
)
v
=
SplitResult
(
scheme
,
netloc
,
url
,
query
,
fragment
)
_parse_cache
[
key
]
=
v
return
_coerce_result
(
v
)
for
c
in
url
[:
i
]:
if
c
not
in
scheme_chars
:
break
else
:
# make sure "url" is not actually a port number (in which case
# "scheme" is really part of the path)
rest
=
url
[
i
+
1
:]
if
not
rest
or
any
(
c
not
in
'0123456789'
for
c
in
rest
):
# not a port number
scheme
,
url
=
url
[:
i
].
lower
(),
rest
if
url
[:
2
]
==
'//'
:
netloc
,
url
=
_splitnetloc
(
url
,
2
)
if
((
'['
in
netloc
and
']'
not
in
netloc
)
or
(
']'
in
netloc
and
'['
not
in
netloc
)):
raise
ValueError
(
"Invalid IPv6 URL"
)
if
allow_fragments
and
'#'
in
url
:
url
,
fragment
=
url
.
split
(
'#'
,
1
)
if
'?'
in
url
:
url
,
query
=
url
.
split
(
'?'
,
1
)
v
=
SplitResult
(
scheme
,
netloc
,
url
,
query
,
fragment
)
_parse_cache
[
key
]
=
v
return
_coerce_result
(
v
)
def
urlunparse
(
components
):
"""Put a parsed URL back together again. This may result in a
slightly different, but equivalent URL, if the URL that was parsed
originally had redundant delimiters, e.g. a ? with an empty query
(the draft states that these are equivalent)."""
scheme
,
netloc
,
url
,
params
,
query
,
fragment
,
_coerce_result
=
(
_coerce_args
(
*
components
))
if
params
:
url
=
"%s;%s"
%
(
url
,
params
)
return
_coerce_result
(
urlunsplit
((
scheme
,
netloc
,
url
,
query
,
fragment
)))
def
urlunsplit
(
components
):
"""Combine the elements of a tuple as returned by urlsplit() into a
complete URL as a string. The data argument can be any five-item iterable.
This may result in a slightly different, but equivalent URL, if the URL that
was parsed originally had unnecessary delimiters (for example, a ? with an
empty query; the RFC states that these are equivalent)."""
scheme
,
netloc
,
url
,
query
,
fragment
,
_coerce_result
=
(
_coerce_args
(
*
components
))
if
netloc
or
(
scheme
and
scheme
in
uses_netloc
and
url
[:
2
]
!=
'//'
):
if
url
and
url
[:
1
]
!=
'/'
:
url
=
'/'
+
url
url
=
'//'
+
(
netloc
or
''
)
+
url
if
scheme
:
url
=
scheme
+
':'
+
url
if
query
:
url
=
url
+
'?'
+
query
if
fragment
:
url
=
url
+
'#'
+
fragment
return
_coerce_result
(
url
)
def
urljoin
(
base
,
url
,
allow_fragments
=
True
):
"""Join a base URL and a possibly relative URL to form an absolute
interpretation of the latter."""
if
not
base
:
return
url
if
not
url
:
return
base
base
,
url
,
_coerce_result
=
_coerce_args
(
base
,
url
)
bscheme
,
bnetloc
,
bpath
,
bparams
,
bquery
,
bfragment
=
\
urlparse
(
base
,
''
,
allow_fragments
)
scheme
,
netloc
,
path
,
params
,
query
,
fragment
=
\
urlparse
(
url
,
bscheme
,
allow_fragments
)
if
scheme
!=
bscheme
or
scheme
not
in
uses_relative
:
return
_coerce_result
(
url
)
if
scheme
in
uses_netloc
:
if
netloc
:
return
_coerce_result
(
urlunparse
((
scheme
,
netloc
,
path
,
params
,
query
,
fragment
)))
netloc
=
bnetloc
if
not
path
and
not
params
:
path
=
bpath
params
=
bparams
if
not
query
:
query
=
bquery
return
_coerce_result
(
urlunparse
((
scheme
,
netloc
,
path
,
params
,
query
,
fragment
)))
base_parts
=
bpath
.
split
(
'/'
)
if
base_parts
[
-
1
]
!=
''
:
# the last item is not a directory, so will not be taken into account
# in resolving the relative path
del
base_parts
[
-
1
]
# for rfc3986, ignore all base path should the first character be root.
if
path
[:
1
]
==
'/'
:
segments
=
path
.
split
(
'/'
)
else
:
segments
=
base_parts
+
path
.
split
(
'/'
)
# filter out elements that would cause redundant slashes on re-joining
# the resolved_path
segments
[
1
:
-
1
]
=
filter
(
None
,
segments
[
1
:
-
1
])
resolved_path
=
[]
for
seg
in
segments
:
if
seg
==
'..'
:
try
:
resolved_path
.
pop
()
except
IndexError
:
# ignore any .. segments that would otherwise cause an IndexError
# when popped from resolved_path if resolving for rfc3986
pass
elif
seg
==
'.'
:
continue
else
:
resolved_path
.
append
(
seg
)
if
segments
[
-
1
]
in
(
'.'
,
'..'
):
# do some post-processing here. if the last segment was a relative dir,
# then we need to append the trailing '/'
resolved_path
.
append
(
''
)
return
_coerce_result
(
urlunparse
((
scheme
,
netloc
,
'/'
.
join
(
resolved_path
)
or
'/'
,
params
,
query
,
fragment
)))
def
urldefrag
(
url
):
"""Removes any existing fragment from URL.
Returns a tuple of the defragmented URL and the fragment. If
the URL contained no fragments, the second element is the
empty string.
"""
url
,
_coerce_result
=
_coerce_args
(
url
)
if
'#'
in
url
:
s
,
n
,
p
,
a
,
q
,
frag
=
urlparse
(
url
)
defrag
=
urlunparse
((
s
,
n
,
p
,
a
,
q
,
''
))
else
:
frag
=
''
defrag
=
url
return
_coerce_result
(
DefragResult
(
defrag
,
frag
))
_hexdig
=
'0123456789ABCDEFabcdef'
_hextobyte
=
None
def
unquote_to_bytes
(
string
):
"""unquote_to_bytes('abc%20def') -> b'abc def'."""
# Note: strings are encoded as UTF-8. This is only an issue if it contains
# unescaped non-ASCII characters, which URIs should not.
if
not
string
:
# Is it a string-like object?
string
.
split
return
b''
if
isinstance
(
string
,
str
):
string
=
string
.
encode
(
'utf-8'
)
bits
=
string
.
split
(
b'%'
)
if
len
(
bits
)
==
1
:
return
string
res
=
[
bits
[
0
]]
append
=
res
.
append
# Delay the initialization of the table to not waste memory
# if the function is never called
global
_hextobyte
if
_hextobyte
is
None
:
_hextobyte
=
{(
a
+
b
).
encode
():
bytes
([
int
(
a
+
b
,
16
)])
for
a
in
_hexdig
for
b
in
_hexdig
}
for
item
in
bits
[
1
:]:
try
:
append
(
_hextobyte
[
item
[:
2
]])
append
(
item
[
2
:])
except
KeyError
:
append
(
b'%'
)
append
(
item
)
return
b''
.
join
(
res
)
_asciire
=
re
.
compile
(
'([
\x00
-
\x7f
]+)'
)
def
unquote
(
string
,
encoding
=
'utf-8'
,
errors
=
'replace'
):
"""Replace %xx escapes by their single-character equivalent. The optional
encoding and errors parameters specify how to decode percent-encoded
sequences into Unicode characters, as accepted by the bytes.decode()
method.
By default, percent-encoded sequences are decoded with UTF-8, and invalid
sequences are replaced by a placeholder character.
unquote('abc%20def') -> 'abc def'.
"""
if
'%'
not
in
string
:
string
.
split
return
string
if
encoding
is
None
:
encoding
=
'utf-8'
if
errors
is
None
:
errors
=
'replace'
bits
=
_asciire
.
split
(
string
)
res
=
[
bits
[
0
]]
append
=
res
.
append
for
i
in
range
(
1
,
len
(
bits
),
2
):
append
(
unquote_to_bytes
(
bits
[
i
]).
decode
(
encoding
,
errors
))
append
(
bits
[
i
+
1
])
return
''
.
join
(
res
)
def
parse_qs
(
qs
,
keep_blank_values
=
False
,
strict_parsing
=
False
,
encoding
=
'utf-8'
,
errors
=
'replace'
):
"""Parse a query given as a string argument.
Arguments:
qs: percent-encoded query string to be parsed
keep_blank_values: flag indicating whether blank values in
percent-encoded queries should be treated as blank strings.
A true value indicates that blanks should be retained as
blank strings. The default false value indicates that
blank values are to be ignored and treated as if they were
not included.
strict_parsing: flag indicating what to do with parsing errors.
If false (the default), errors are silently ignored.
If true, errors raise a ValueError exception.
encoding and errors: specify how to decode percent-encoded sequences
into Unicode characters, as accepted by the bytes.decode() method.
"""
parsed_result
=
{}
pairs
=
parse_qsl
(
qs
,
keep_blank_values
,
strict_parsing
,
encoding
=
encoding
,
errors
=
errors
)
for
name
,
value
in
pairs
:
if
name
in
parsed_result
:
parsed_result
[
name
].
append
(
value
)
else
:
parsed_result
[
name
]
=
[
value
]
return
parsed_result
def
parse_qsl
(
qs
,
keep_blank_values
=
False
,
strict_parsing
=
False
,
encoding
=
'utf-8'
,
errors
=
'replace'
):
"""Parse a query given as a string argument.
Arguments:
qs: percent-encoded query string to be parsed
keep_blank_values: flag indicating whether blank values in
percent-encoded queries should be treated as blank strings. A
true value indicates that blanks should be retained as blank
strings. The default false value indicates that blank values
are to be ignored and treated as if they were not included.
strict_parsing: flag indicating what to do with parsing errors. If
false (the default), errors are silently ignored. If true,
errors raise a ValueError exception.
encoding and errors: specify how to decode percent-encoded sequences
into Unicode characters, as accepted by the bytes.decode() method.
Returns a list, as G-d intended.
"""
qs
,
_coerce_result
=
_coerce_args
(
qs
)
pairs
=
[
s2
for
s1
in
qs
.
split
(
'&'
)
for
s2
in
s1
.
split
(
';'
)]
r
=
[]
for
name_value
in
pairs
:
if
not
name_value
and
not
strict_parsing
:
continue
nv
=
name_value
.
split
(
'='
,
1
)
if
len
(
nv
)
!=
2
:
if
strict_parsing
:
raise
ValueError
(
"bad query field: %r"
%
(
name_value
,))
# Handle case of a control-name with no equal sign
if
keep_blank_values
:
nv
.
append
(
''
)
else
:
continue
if
len
(
nv
[
1
])
or
keep_blank_values
:
name
=
nv
[
0
].
replace
(
'+'
,
' '
)
name
=
unquote
(
name
,
encoding
=
encoding
,
errors
=
errors
)
name
=
_coerce_result
(
name
)
value
=
nv
[
1
].
replace
(
'+'
,
' '
)
value
=
unquote
(
value
,
encoding
=
encoding
,
errors
=
errors
)
value
=
_coerce_result
(
value
)
r
.
append
((
name
,
value
))
return
r
def
unquote_plus
(
string
,
encoding
=
'utf-8'
,
errors
=
'replace'
):
"""Like unquote(), but also replace plus signs by spaces, as required for
unquoting HTML form values.
unquote_plus('%7e/abc+def') -> '~/abc def'
"""
string
=
string
.
replace
(
'+'
,
' '
)
return
unquote
(
string
,
encoding
,
errors
)
_ALWAYS_SAFE
=
frozenset
(
b'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
b'abcdefghijklmnopqrstuvwxyz'
b'0123456789'
b'_.-'
)
_ALWAYS_SAFE_BYTES
=
bytes
(
_ALWAYS_SAFE
)
_safe_quoters
=
{}
class
Quoter
(
collections
.
defaultdict
):
"""A mapping from bytes (in range(0,256)) to strings.
String values are percent-encoded byte values, unless the key < 128, and
in the "safe" set (either the specified safe set, or default set).
"""
# Keeps a cache internally, using defaultdict, for efficiency (lookups
# of cached keys don't call Python code at all).
def
__init__
(
self
,
safe
):
"""safe: bytes object."""
self
.
safe
=
_ALWAYS_SAFE
.
union
(
safe
)
def
__repr__
(
self
):
# Without this, will just display as a defaultdict
return
"<%s %r>"
%
(
self
.
__class__
.
__name__
,
dict
(
self
))
def
__missing__
(
self
,
b
):
# Handle a cache miss. Store quoted string in cache and return.
res
=
chr
(
b
)
if
b
in
self
.
safe
else
'%{:02X}'
.
format
(
b
)
self
[
b
]
=
res
return
res
def
quote
(
string
,
safe
=
'/'
,
encoding
=
None
,
errors
=
None
):
"""quote('abc def') -> 'abc%20def'
Each part of a URL, e.g. the path info, the query, etc., has a
different set of reserved characters that must be quoted.
RFC 2396 Uniform Resource Identifiers (URI): Generic Syntax lists
the following reserved characters.
reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" |
"$" | ","
Each of these characters is reserved in some component of a URL,
but not necessarily in all of them.
By default, the quote function is intended for quoting the path
section of a URL. Thus, it will not encode '/'. This character
is reserved, but in typical usage the quote function is being
called on a path where the existing slash characters are used as
reserved characters.
string and safe may be either str or bytes objects. encoding and errors
must not be specified if string is a bytes object.
The optional encoding and errors parameters specify how to deal with
non-ASCII characters, as accepted by the str.encode method.
By default, encoding='utf-8' (characters are encoded with UTF-8), and
errors='strict' (unsupported characters raise a UnicodeEncodeError).
"""
if
isinstance
(
string
,
str
):
if
not
string
:
return
string
if
encoding
is
None
:
encoding
=
'utf-8'
if
errors
is
None
:
errors
=
'strict'
string
=
string
.
encode
(
encoding
,
errors
)
else
:
if
encoding
is
not
None
:
raise
TypeError
(
"quote() doesn't support 'encoding' for bytes"
)
if
errors
is
not
None
:
raise
TypeError
(
"quote() doesn't support 'errors' for bytes"
)
return
quote_from_bytes
(
string
,
safe
)
def
quote_plus
(
string
,
safe
=
''
,
encoding
=
None
,
errors
=
None
):
"""Like quote(), but also replace ' ' with '+', as required for quoting
HTML form values. Plus signs in the original string are escaped unless
they are included in safe. It also does not have safe default to '/'.
"""
# Check if ' ' in string, where string may either be a str or bytes. If
# there are no spaces, the regular quote will produce the right answer.
if
((
isinstance
(
string
,
str
)
and
' '
not
in
string
)
or
(
isinstance
(
string
,
bytes
)
and
b' '
not
in
string
)):
return
quote
(
string
,
safe
,
encoding
,
errors
)
if
isinstance
(
safe
,
str
):
space
=
' '
else
:
space
=
b' '
string
=
quote
(
string
,
safe
+
space
,
encoding
,
errors
)
return
string
.
replace
(
' '
,
'+'
)
def
quote_from_bytes
(
bs
,
safe
=
'/'
):
"""Like quote(), but accepts a bytes object rather than a str, and does
not perform string-to-bytes encoding. It always returns an ASCII string.
quote_from_bytes(b'abc def
\x3f
') -> 'abc%20def%3f'
"""
if
not
isinstance
(
bs
, (
bytes
,
bytearray
)):
raise
TypeError
(
"quote_from_bytes() expected bytes"
)
if
not
bs
:
return
''
if
isinstance
(
safe
,
str
):
# Normalize 'safe' by converting to bytes and removing non-ASCII chars
safe
=
safe
.
encode
(
'ascii'
,
'ignore'
)
else
:
safe
=
bytes
([
c
for
c
in
safe
if
c
<
128
])
if
not
bs
.
rstrip
(
_ALWAYS_SAFE_BYTES
+
safe
):
return
bs
.
decode
()
try
:
quoter
=
_safe_quoters
[
safe
]
except
KeyError
:
_safe_quoters
[
safe
]
=
quoter
=
Quoter
(
safe
).
__getitem__
return
''
.
join
([
quoter
(
char
)
for
char
in
bs
])
def
urlencode
(
query
,
doseq
=
False
,
safe
=
''
,
encoding
=
None
,
errors
=
None
,
quote_via
=
quote_plus
):
"""Encode a dict or sequence of two-element tuples into a URL query string.
If any values in the query arg are sequences and doseq is true, each
sequence element is converted to a separate parameter.
If the query arg is a sequence of two-element tuples, the order of the
parameters in the output will match the order of parameters in the
input.
The components of a query arg may each be either a string or a bytes type.
The safe, encoding, and errors parameters are passed down to the function
specified by quote_via (encoding and errors only if a component is a str).
"""
if
hasattr
(
query
,
"items"
):
query
=
query
.
items
()
else
:
# It's a bother at times that strings and string-like objects are
# sequences.
try
:
# non-sequence items should not work with len()
# non-empty strings will fail this
if
len
(
query
)
and
not
isinstance
(
query
[
0
],
tuple
):
raise
TypeError
# Zero-length sequences of all types will get here and succeed,
# but that's a minor nit. Since the original implementation
# allowed empty dicts that type of behavior probably should be
# preserved for consistency
except
TypeError
:
ty
,
va
,
tb
=
sys
.
exc_info
()
raise
TypeError
(
"not a valid non-string sequence "
"or mapping object"
).
with_traceback
(
tb
)
l
=
[]
if
not
doseq
:
for
k
,
v
in
query
:
if
isinstance
(
k
,
bytes
):
k
=
quote_via
(
k
,
safe
)
else
:
k
=
quote_via
(
str
(
k
),
safe
,
encoding
,
errors
)
if
isinstance
(
v
,
bytes
):
v
=
quote_via
(
v
,
safe
)
else
:
v
=
quote_via
(
str
(
v
),
safe
,
encoding
,
errors
)
l
.
append
(
k
+
'='
+
v
)
else
:
for
k
,
v
in
query
:
if
isinstance
(
k
,
bytes
):
k
=
quote_via
(
k
,
safe
)
else
:
k
=
quote_via
(
str
(
k
),
safe
,
encoding
,
errors
)
if
isinstance
(
v
,
bytes
):
v
=
quote_via
(
v
,
safe
)
l
.
append
(
k
+
'='
+
v
)
elif
isinstance
(
v
,
str
):
v
=
quote_via
(
v
,
safe
,
encoding
,
errors
)
l
.
append
(
k
+
'='
+
v
)
else
:
try
:
# Is this a sufficient test for sequence-ness?
x
=
len
(
v
)
except
TypeError
:
# not a sequence
v
=
quote_via
(
str
(
v
),
safe
,
encoding
,
errors
)
l
.
append
(
k
+
'='
+
v
)
else
:
# loop over the sequence
for
elt
in
v
:
if
isinstance
(
elt
,
bytes
):
elt
=
quote_via
(
elt
,
safe
)
else
:
elt
=
quote_via
(
str
(
elt
),
safe
,
encoding
,
errors
)
l
.
append
(
k
+
'='
+
elt
)
return
'&'
.
join
(
l
)
def
to_bytes
(
url
):
"""to_bytes(u"URL") --> 'URL'."""
# Most URL schemes require ASCII. If that changes, the conversion
# can be relaxed.
# XXX get rid of to_bytes()
if
isinstance
(
url
,
str
):
try
:
url
=
url
.
encode
(
"ASCII"
).
decode
()
except
UnicodeError
:
raise
UnicodeError
(
"URL "
+
repr
(
url
)
+
" contains non-ASCII characters"
)
return
url
def
unwrap
(
url
):
"""unwrap('<URL:type://host/path>') --> 'type://host/path'."""
url
=
str
(
url
).
strip
()
if
url
[:
1
]
==
'<'
and
url
[
-
1
:]
==
'>'
:
url
=
url
[
1
:
-
1
].
strip
()
if
url
[:
4
]
==
'URL:'
:
url
=
url
[
4
:].
strip
()
return
url
_typeprog
=
None
def
splittype
(
url
):
"""splittype('type:opaquestring') --> 'type', 'opaquestring'."""
global
_typeprog
if
_typeprog
is
None
:
_typeprog
=
re
.
compile
(
'([^/:]+):(.*)'
,
re
.
DOTALL
)
match
=
_typeprog
.
match
(
url
)
if
match
:
scheme
,
data
=
match
.
groups
()
return
scheme
.
lower
(),
data
return
None
,
url
_hostprog
=
None
def
splithost
(
url
):
"""splithost('//host[:port]/path') --> 'host[:port]', '/path'."""
global
_hostprog
if
_hostprog
is
None
:
_hostprog
=
re
.
compile
(
'//([^/?]*)(.*)'
,
re
.
DOTALL
)
match
=
_hostprog
.
match
(
url
)
if
match
:
host_port
,
path
=
match
.
groups
()
if
path
and
path
[
0
]
!=
'/'
:
path
=
'/'
+
path
return
host_port
,
path
return
None
,
url
def
splituser
(
host
):
"""splituser('user[:passwd]@host[:port]') --> 'user[:passwd]', 'host[:port]'."""
user
,
delim
,
host
=
host
.
rpartition
(
'@'
)
return
(
user
if
delim
else
None
),
host
def
splitpasswd
(
user
):
"""splitpasswd('user:passwd') -> 'user', 'passwd'."""
user
,
delim
,
passwd
=
user
.
partition
(
':'
)
return
user
, (
passwd
if
delim
else
None
)
# splittag('/path#tag') --> '/path', 'tag'
_portprog
=
None
def
splitport
(
host
):
"""splitport('host:port') --> 'host', 'port'."""
global
_portprog
if
_portprog
is
None
:
_portprog
=
re
.
compile
(
'(.*):([0-9]*)$'
,
re
.
DOTALL
)
match
=
_portprog
.
match
(
host
)
if
match
:
host
,
port
=
match
.
groups
()
if
port
:
return
host
,
port
return
host
,
None
def
splitnport
(
host
,
defport
=
-
1
):
"""Split host and port, returning numeric port.
Return given default port if no ':' found; defaults to -1.
Return numerical port if a valid number are found after ':'.
Return None if ':' but not a valid number."""
host
,
delim
,
port
=
host
.
rpartition
(
':'
)
if
not
delim
:
host
=
port
elif
port
:
try
:
nport
=
int
(
port
)
except
ValueError
:
nport
=
None
return
host
,
nport
return
host
,
defport
def
splitquery
(
url
):
"""splitquery('/path?query') --> '/path', 'query'."""
path
,
delim
,
query
=
url
.
rpartition
(
'?'
)
if
delim
:
return
path
,
query
return
url
,
None
def
splittag
(
url
):
"""splittag('/path#tag') --> '/path', 'tag'."""
path
,
delim
,
tag
=
url
.
rpartition
(
'#'
)
if
delim
:
return
path
,
tag
return
url
,
None
def
splitattr
(
url
):
View remainder of file in raw view
Back
|
FazBrowse Home
|
New Git URL