23
from bzrlib.lazy_import import lazy_import
24
lazy_import(globals(), """
25
from posixpath import split as _posix_split, normpath as _posix_normpath
23
from urllib import parse as urlparse
30
from .lazy_import import lazy_import
31
lazy_import(globals(), """
32
from posixpath import split as _posix_split
37
class InvalidURL(errors.PathError):
39
_fmt = 'Invalid url supplied to transport: "%(path)s"%(extra)s'
42
class InvalidURLJoin(errors.PathError):
44
_fmt = "Invalid URL join request: %(reason)s: %(base)r + %(join_args)r"
46
def __init__(self, reason, base, join_args):
49
self.join_args = join_args
50
errors.PathError.__init__(self, base, reason)
53
class InvalidRebaseURLs(errors.PathError):
55
_fmt = "URLs differ by more than path: %(from_)r and %(to)r"
57
def __init__(self, from_, to):
60
errors.PathError.__init__(
61
self, from_, 'URLs differ by more than path.')
36
64
def basename(url, exclude_trailing_slash=True):
37
65
"""Return the last component of a URL.
121
match = _url_scheme_re.match(base)
124
scheme = match.group('scheme')
125
path = match.group('path').split('/')
126
if path[-1:] == ['']:
127
# Strip off a trailing slash
128
# This helps both when we are at the root, and when
129
# 'base' has an extra slash at the end
132
path = base.split('/')
134
if scheme is not None and len(path) >= 1:
136
# the path should be represented as an abs path.
137
# we know this must be absolute because of the presence of a URL scheme.
139
path = [''] + path[1:]
141
# create an empty host, but dont alter the path - this might be a
142
# relative url fragment.
156
scheme_end, path_start = _find_scheme_and_separator(base)
157
if scheme_end is None and path_start is None:
159
elif path_start is None:
160
path_start = len(base)
161
path = base[path_start:]
147
match = _url_scheme_re.match(arg)
150
scheme = match.group('scheme')
151
# this skips .. normalisation, making http://host/../../..
153
path = match.group('path').split('/')
154
# set the host and path according to new absolute URL, discarding
155
# any previous values.
156
# XXX: duplicates mess from earlier in this function. This URL
157
# manipulation code needs some cleaning up.
158
if scheme is not None and len(path) >= 1:
161
# url scheme implies absolute path.
164
# no url scheme we take the path as is.
163
arg_scheme_end, arg_path_start = _find_scheme_and_separator(arg)
164
if arg_scheme_end is None and arg_path_start is None:
166
elif arg_path_start is None:
167
arg_path_start = len(arg)
168
if arg_scheme_end is not None:
170
path = arg[arg_path_start:]
171
scheme_end = arg_scheme_end
172
path_start = arg_path_start
167
path = '/'.join(path)
168
174
path = joinpath(path, arg)
169
path = path.split('/')
170
if remove_root and path[0:1] == ['']:
173
# Remove the leading slash from the path, so long as it isn't also the
174
# trailing slash, which we want to keep if present.
175
if path and path[0] == '' and len(path) > 1:
180
return '/'.join(path)
181
return scheme + '://' + '/'.join(path)
175
return base[:path_start] + path
184
178
def joinpath(base, *args):
237
232
# importing directly from posixpath allows us to test this
238
233
# on non-posix platforms
239
return 'file://' + escape(_posix_normpath(
240
osutils._posix_abspath(path)))
234
return 'file://' + escape(osutils._posix_abspath(path))
243
237
def _win32_local_path_from_url(url):
244
238
"""Convert a url like file:///C:/path/to/foo into C:/path/to/foo"""
245
239
if not url.startswith('file://'):
246
raise errors.InvalidURL(url, 'local urls must start with file:///, '
247
'UNC path urls must start with file://')
240
raise InvalidURL(url, 'local urls must start with file:///, '
241
'UNC path urls must start with file://')
242
url = strip_segment_parameters(url)
248
243
# We strip off all 3 slashes
249
244
win32_url = url[len('file:'):]
250
245
# check for UNC path: //HOST/path
251
246
if not win32_url.startswith('///'):
252
247
if (win32_url[2] == '/'
253
or win32_url[3] in '|:'):
254
raise errors.InvalidURL(url, 'Win32 UNC path urls'
255
' have form file://HOST/path')
248
or win32_url[3] in '|:'):
249
raise InvalidURL(url, 'Win32 UNC path urls'
250
' have form file://HOST/path')
256
251
return unescape(win32_url)
258
253
# allow empty paths so we can serve all roots
339
335
:param url: Either a hybrid URL or a local path
340
336
:return: A normalized URL which only includes 7-bit ASCII characters.
342
m = _url_scheme_re.match(url)
338
scheme_end, path_start = _find_scheme_and_separator(url)
339
if scheme_end is None:
344
340
return local_path_to_url(url)
345
scheme = m.group('scheme')
346
path = m.group('path')
347
if not isinstance(url, unicode):
341
prefix = url[:path_start]
342
path = url[path_start:]
343
if not isinstance(url, str):
349
345
if c not in _url_safe_characters:
350
raise errors.InvalidURL(url, 'URLs can only contain specific'
351
' safe characters (not %r)' % c)
346
raise InvalidURL(url, 'URLs can only contain specific'
347
' safe characters (not %r)' % c)
352
348
path = _url_hex_escapes_re.sub(_unescape_safe_chars, path)
353
return str(scheme + '://' + ''.join(path))
349
return str(prefix + ''.join(path))
355
351
# We have a unicode (hybrid) url
356
352
path_chars = list(path)
358
for i in xrange(len(path_chars)):
354
for i in range(len(path_chars)):
359
355
if path_chars[i] not in _url_safe_characters:
360
chars = path_chars[i].encode('utf-8')
361
356
path_chars[i] = ''.join(
362
['%%%02X' % ord(c) for c in path_chars[i].encode('utf-8')])
357
['%%%02X' % c for c in bytearray(path_chars[i].encode('utf-8'))])
363
358
path = ''.join(path_chars)
364
359
path = _url_hex_escapes_re.sub(_unescape_safe_chars, path)
365
return str(scheme + '://' + path)
360
return str(prefix + path)
368
363
def relative_url(base, other):
469
464
return url_base + head, tail
467
def split_segment_parameters_raw(url):
468
"""Split the subsegment of the last segment of a URL.
470
:param url: A relative or absolute URL
471
:return: (url, subsegments)
473
# GZ 2011-11-18: Dodgy removing the terminal slash like this, function
474
# operates on urls not url+segments, and Transport classes
475
# should not be blindly adding slashes in the first place.
476
lurl = strip_trailing_slash(url)
477
# Segments begin at first comma after last forward slash, if one exists
478
segment_start = lurl.find(",", lurl.rfind("/") + 1)
479
if segment_start == -1:
481
return (lurl[:segment_start],
482
[str(s) for s in lurl[segment_start + 1:].split(",")])
485
def split_segment_parameters(url):
486
"""Split the segment parameters of the last segment of a URL.
488
:param url: A relative or absolute URL
489
:return: (url, segment_parameters)
491
(base_url, subsegments) = split_segment_parameters_raw(url)
493
for subsegment in subsegments:
495
(key, value) = subsegment.split("=", 1)
497
raise InvalidURL(url, "missing = in subsegment")
498
if not isinstance(key, str):
500
if not isinstance(value, str):
501
raise TypeError(value)
502
parameters[key] = value
503
return (base_url, parameters)
506
def strip_segment_parameters(url):
507
"""Strip the segment parameters from a URL.
509
:param url: A relative or absolute URL
512
base_url, subsegments = split_segment_parameters_raw(url)
516
def join_segment_parameters_raw(base, *subsegments):
517
"""Create a new URL by adding subsegments to an existing one.
519
This adds the specified subsegments to the last path in the specified
520
base URL. The subsegments should be bytestrings.
522
:note: You probably want to use join_segment_parameters instead.
526
for subsegment in subsegments:
527
if not isinstance(subsegment, str):
528
raise TypeError("Subsegment %r is not a bytestring" % subsegment)
529
if "," in subsegment:
530
raise InvalidURLJoin(", exists in subsegments",
532
return ",".join((base,) + subsegments)
535
def join_segment_parameters(url, parameters):
536
"""Create a new URL by adding segment parameters to an existing one.
538
The parameters of the last segment in the URL will be updated; if a
539
parameter with the same key already exists it will be overwritten.
541
:param url: A URL, as string
542
:param parameters: Dictionary of parameters, keys and values as bytestrings
544
(base, existing_parameters) = split_segment_parameters(url)
546
new_parameters.update(existing_parameters)
547
for key, value in parameters.items():
548
if not isinstance(key, str):
549
raise TypeError("parameter key %r is not a str" % key)
550
if not isinstance(value, str):
551
raise TypeError("parameter value %r for %r is not a str" %
554
raise InvalidURLJoin("= exists in parameter key", url,
556
new_parameters[key] = value
557
return join_segment_parameters_raw(
558
base, *["%s=%s" % item for item in sorted(new_parameters.items())])
472
561
def _win32_strip_local_trailing_slash(url):
473
562
"""Strip slashes after the drive letter"""
474
563
if len(url) > WIN32_MIN_ABS_FILEURL_LENGTH:
524
613
This returns a Unicode path from a URL
526
615
# jam 20060427 URLs are supposed to be ASCII only strings
527
# If they are passed in as unicode, urllib.unquote
616
# If they are passed in as unicode, unquote
528
617
# will return a UNICODE string, which actually contains
529
618
# utf-8 bytes. So we have to ensure that they are
530
619
# plain ASCII strings, or the final .decode will
531
620
# try to encode the UNICODE => ASCII, and then decode
535
except UnicodeError, e:
536
raise errors.InvalidURL(url, 'URL was not a plain ASCII url: %s' % (e,))
538
unquoted = urllib.unquote(url)
540
unicode_path = unquoted.decode('utf-8')
541
except UnicodeError, e:
542
raise errors.InvalidURL(url, 'Unable to encode the URL as utf-8: %s' % (e,))
623
if isinstance(url, str):
626
except UnicodeError as e:
628
url, 'URL was not a plain ASCII url: %s' % (e,))
629
return urlparse.unquote(url)
546
632
# These are characters that if escaped, should stay that way
547
633
_no_decode_chars = ';/?:@&=+$,#'
548
634
_no_decode_ords = [ord(c) for c in _no_decode_chars]
549
635
_no_decode_hex = (['%02x' % o for o in _no_decode_ords]
550
+ ['%02X' % o for o in _no_decode_ords])
551
_hex_display_map = dict(([('%02x' % o, chr(o)) for o in range(256)]
552
+ [('%02X' % o, chr(o)) for o in range(256)]))
553
#These entries get mapped to themselves
554
_hex_display_map.update((hex,'%'+hex) for hex in _no_decode_hex)
636
+ ['%02X' % o for o in _no_decode_ords])
637
_hex_display_map = dict(([('%02x' % o, bytes([o])) for o in range(256)]
638
+ [('%02X' % o, bytes([o])) for o in range(256)]))
639
# These entries get mapped to themselves
640
_hex_display_map.update((hex, b'%' + hex.encode('ascii'))
641
for hex in _no_decode_hex)
556
643
# These characters shouldn't be percent-encoded, and it's always safe to
557
644
# unencode them if they are.
558
645
_url_dont_escape_characters = set(
559
"abcdefghijklmnopqrstuvwxyz" # Lowercase alpha
560
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" # Uppercase alpha
561
"0123456789" # Numbers
562
"-._~" # Unreserved characters
646
"abcdefghijklmnopqrstuvwxyz" # Lowercase alpha
647
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" # Uppercase alpha
648
"0123456789" # Numbers
649
"-._~" # Unreserved characters
565
652
# These characters should not be escaped
566
653
_url_safe_characters = set(
567
"abcdefghijklmnopqrstuvwxyz" # Lowercase alpha
568
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" # Uppercase alpha
569
"0123456789" # Numbers
570
"_.-!~*'()" # Unreserved characters
571
"/;?:@&=+$," # Reserved characters
572
"%#" # Extra reserved characters
654
"abcdefghijklmnopqrstuvwxyz" # Lowercase alpha
655
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" # Uppercase alpha
656
"0123456789" # Numbers
657
"_.-!~*'()" # Unreserved characters
658
"/;?:@&=+$," # Reserved characters
659
"%#" # Extra reserved characters
663
def _unescape_segment_for_display(segment, encoding):
664
"""Unescape a segment for display.
666
Helper for unescape_for_display
668
:param url: A 7-bit ASCII URL
669
:param encoding: The final output encoding
671
:return: A unicode string which can be safely encoded into the
674
escaped_chunks = segment.split('%')
675
escaped_chunks[0] = escaped_chunks[0].encode('utf-8')
676
for j in range(1, len(escaped_chunks)):
677
item = escaped_chunks[j]
679
escaped_chunks[j] = _hex_display_map[item[:2]]
681
# Put back the percent symbol
682
escaped_chunks[j] = b'%' + (item[:2].encode('utf-8'))
683
except UnicodeDecodeError:
684
escaped_chunks[j] = chr(int(item[:2], 16)).encode('utf-8')
685
escaped_chunks[j] += (item[2:].encode('utf-8'))
686
unescaped = b''.join(escaped_chunks)
688
decoded = unescaped.decode('utf-8')
689
except UnicodeDecodeError:
690
# If this path segment cannot be properly utf-8 decoded
691
# after doing unescaping we will just leave it alone
695
decoded.encode(encoding)
696
except UnicodeEncodeError:
697
# If this chunk cannot be encoded in the local
698
# encoding, then we should leave it alone
701
# Otherwise take the url decoded one
575
705
def unescape_for_display(url, encoding):
576
706
"""Decode what you can for a URL, so that we get a nice looking path.
600
730
# Split into sections to try to decode utf-8
601
731
res = url.split('/')
602
for i in xrange(1, len(res)):
603
escaped_chunks = res[i].split('%')
604
for j in xrange(1, len(escaped_chunks)):
605
item = escaped_chunks[j]
607
escaped_chunks[j] = _hex_display_map[item[:2]] + item[2:]
609
# Put back the percent symbol
610
escaped_chunks[j] = '%' + item
611
except UnicodeDecodeError:
612
escaped_chunks[j] = unichr(int(item[:2], 16)) + item[2:]
613
unescaped = ''.join(escaped_chunks)
615
decoded = unescaped.decode('utf-8')
616
except UnicodeDecodeError:
617
# If this path segment cannot be properly utf-8 decoded
618
# after doing unescaping we will just leave it alone
622
decoded.encode(encoding)
623
except UnicodeEncodeError:
624
# If this chunk cannot be encoded in the local
625
# encoding, then we should leave it alone
628
# Otherwise take the url decoded one
732
for i in range(1, len(res)):
733
res[i] = _unescape_segment_for_display(res[i], encoding)
630
734
return u'/'.join(res)
693
798
return osutils.pathjoin(*segments)
804
def __init__(self, scheme, quoted_user, quoted_password, quoted_host,
807
self.quoted_host = quoted_host
808
self.host = unquote(self.quoted_host)
809
self.quoted_user = quoted_user
810
if self.quoted_user is not None:
811
self.user = unquote(self.quoted_user)
814
self.quoted_password = quoted_password
815
if self.quoted_password is not None:
816
self.password = unquote(self.quoted_password)
820
self.quoted_path = _url_hex_escapes_re.sub(
821
_unescape_safe_chars, quoted_path)
822
self.path = unquote(self.quoted_path)
824
def __eq__(self, other):
825
return (isinstance(other, self.__class__) and
826
self.scheme == other.scheme and
827
self.host == other.host and
828
self.user == other.user and
829
self.password == other.password and
830
self.path == other.path)
833
return "<%s(%r, %r, %r, %r, %r, %r)>" % (
834
self.__class__.__name__,
835
self.scheme, self.quoted_user, self.quoted_password,
836
self.quoted_host, self.port, self.quoted_path)
839
def from_string(cls, url):
840
"""Create a URL object from a string.
842
:param url: URL as bytestring
844
# GZ 2017-06-09: Actually validate ascii-ness
845
# pad.lv/1696545: For the moment, accept both native strings and
847
if isinstance(url, str):
849
elif isinstance(url, str):
852
except UnicodeEncodeError:
853
raise InvalidURL(url)
855
raise InvalidURL(url)
856
(scheme, netloc, path, params,
857
query, fragment) = urlparse.urlparse(url, allow_fragments=False)
858
user = password = host = port = None
860
user, host = netloc.rsplit('@', 1)
862
user, password = user.split(':', 1)
866
if ':' in host and not (host[0] == '[' and host[-1] == ']'):
868
host, port = host.rsplit(':', 1)
873
raise InvalidURL('invalid port number %s in url:\n%s' %
877
if host != "" and host[0] == '[' and host[-1] == ']': # IPv6
880
return cls(scheme, user, password, host, port, path)
883
netloc = self.quoted_host
885
netloc = "[%s]" % netloc
886
if self.quoted_user is not None:
887
# Note that we don't put the password back even if we
888
# have one so that it doesn't get accidentally
890
netloc = '%s@%s' % (self.quoted_user, netloc)
891
if self.port is not None:
892
netloc = '%s:%d' % (netloc, self.port)
893
return urlparse.urlunparse(
894
(self.scheme, netloc, self.quoted_path, None, None, None))
897
def _combine_paths(base_path, relpath):
898
"""Transform a Transport-relative path to a remote absolute path.
900
This does not handle substitution of ~ but does handle '..' and '.'
905
t._combine_paths('/home/sarah', 'project/foo')
906
=> '/home/sarah/project/foo'
907
t._combine_paths('/home/sarah', '../../etc')
909
t._combine_paths('/home/sarah', '/etc')
912
:param base_path: base path
913
:param relpath: relative url string for relative part of remote path.
914
:return: urlencoded string for final path.
916
# pad.lv/1696545: For the moment, accept both native strings and
918
if isinstance(relpath, str):
920
elif isinstance(relpath, str):
922
relpath = relpath.encode()
923
except UnicodeEncodeError:
924
raise InvalidURL(relpath)
926
raise InvalidURL(relpath)
927
relpath = _url_hex_escapes_re.sub(_unescape_safe_chars, relpath)
928
if relpath.startswith('/'):
931
base_parts = base_path.split('/')
932
if len(base_parts) > 0 and base_parts[-1] == '':
933
base_parts = base_parts[:-1]
934
for p in relpath.split('/'):
936
if len(base_parts) == 0:
937
# In most filesystems, a request for the parent
938
# of root, just returns root.
945
path = '/'.join(base_parts)
946
if not path.startswith('/'):
950
def clone(self, offset=None):
951
"""Return a new URL for a path relative to this URL.
953
:param offset: A relative path, already urlencoded
954
:return: `URL` instance
956
if offset is not None:
957
relative = unescape(offset)
958
path = self._combine_paths(self.path, relative)
959
path = quote(path, safe="/~")
961
path = self.quoted_path
962
return self.__class__(self.scheme, self.quoted_user,
963
self.quoted_password, self.quoted_host, self.port,
697
967
def parse_url(url):
698
968
"""Extract the server address, the credentials and the path from the url.
703
973
:param url: an quoted url
705
974
:return: (scheme, user, password, host, port, path) tuple, all fields
708
if isinstance(url, unicode):
709
raise errors.InvalidURL('should be ascii:\n%r' % url)
710
url = url.encode('utf-8')
711
(scheme, netloc, path, params,
712
query, fragment) = urlparse.urlparse(url, allow_fragments=False)
713
user = password = host = port = None
715
user, host = netloc.rsplit('@', 1)
717
user, password = user.split(':', 1)
718
password = urllib.unquote(password)
719
user = urllib.unquote(user)
723
if ':' in host and not (host[0] == '[' and host[-1] == ']'): #there *is* port
724
host, port = host.rsplit(':',1)
728
raise errors.InvalidURL('invalid port number %s in url:\n%s' %
730
if host != "" and host[0] == '[' and host[-1] == ']': #IPv6
733
host = urllib.unquote(host)
734
path = urllib.unquote(path)
736
return (scheme, user, password, host, port, path)
977
parsed_url = URL.from_string(url)
978
return (parsed_url.scheme, parsed_url.user, parsed_url.password,
979
parsed_url.host, parsed_url.port, parsed_url.path)