Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/urllib3/util/url.py @ 0:26e78fe6e8c4 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 from __future__ import absolute_import
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2 import re
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3 from collections import namedtuple
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4
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5 from ..exceptions import LocationParseError
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6 from ..packages import six
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7
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8
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9 url_attrs = ["scheme", "auth", "host", "port", "path", "query", "fragment"]
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10
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11 # We only want to normalize urls with an HTTP(S) scheme.
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12 # urllib3 infers URLs without a scheme (None) to be http.
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13 NORMALIZABLE_SCHEMES = ("http", "https", None)
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14
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15 # Almost all of these patterns were derived from the
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16 # 'rfc3986' module: https://github.com/python-hyper/rfc3986
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17 PERCENT_RE = re.compile(r"%[a-fA-F0-9]{2}")
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18 SCHEME_RE = re.compile(r"^(?:[a-zA-Z][a-zA-Z0-9+-]*:|/)")
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19 URI_RE = re.compile(
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20 r"^(?:([a-zA-Z][a-zA-Z0-9+.-]*):)?"
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21 r"(?://([^\\/?#]*))?"
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22 r"([^?#]*)"
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23 r"(?:\?([^#]*))?"
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24 r"(?:#(.*))?$",
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25 re.UNICODE | re.DOTALL,
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26 )
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27
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28 IPV4_PAT = r"(?:[0-9]{1,3}\.){3}[0-9]{1,3}"
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29 HEX_PAT = "[0-9A-Fa-f]{1,4}"
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30 LS32_PAT = "(?:{hex}:{hex}|{ipv4})".format(hex=HEX_PAT, ipv4=IPV4_PAT)
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31 _subs = {"hex": HEX_PAT, "ls32": LS32_PAT}
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32 _variations = [
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33 # 6( h16 ":" ) ls32
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34 "(?:%(hex)s:){6}%(ls32)s",
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35 # "::" 5( h16 ":" ) ls32
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36 "::(?:%(hex)s:){5}%(ls32)s",
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37 # [ h16 ] "::" 4( h16 ":" ) ls32
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38 "(?:%(hex)s)?::(?:%(hex)s:){4}%(ls32)s",
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39 # [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
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40 "(?:(?:%(hex)s:)?%(hex)s)?::(?:%(hex)s:){3}%(ls32)s",
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41 # [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
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42 "(?:(?:%(hex)s:){0,2}%(hex)s)?::(?:%(hex)s:){2}%(ls32)s",
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43 # [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32
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44 "(?:(?:%(hex)s:){0,3}%(hex)s)?::%(hex)s:%(ls32)s",
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45 # [ *4( h16 ":" ) h16 ] "::" ls32
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46 "(?:(?:%(hex)s:){0,4}%(hex)s)?::%(ls32)s",
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47 # [ *5( h16 ":" ) h16 ] "::" h16
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48 "(?:(?:%(hex)s:){0,5}%(hex)s)?::%(hex)s",
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49 # [ *6( h16 ":" ) h16 ] "::"
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50 "(?:(?:%(hex)s:){0,6}%(hex)s)?::",
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51 ]
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52
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53 UNRESERVED_PAT = r"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._!\-~"
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54 IPV6_PAT = "(?:" + "|".join([x % _subs for x in _variations]) + ")"
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55 ZONE_ID_PAT = "(?:%25|%)(?:[" + UNRESERVED_PAT + "]|%[a-fA-F0-9]{2})+"
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56 IPV6_ADDRZ_PAT = r"\[" + IPV6_PAT + r"(?:" + ZONE_ID_PAT + r")?\]"
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57 REG_NAME_PAT = r"(?:[^\[\]%:/?#]|%[a-fA-F0-9]{2})*"
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58 TARGET_RE = re.compile(r"^(/[^?#]*)(?:\?([^#]*))?(?:#.*)?$")
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59
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60 IPV4_RE = re.compile("^" + IPV4_PAT + "$")
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61 IPV6_RE = re.compile("^" + IPV6_PAT + "$")
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62 IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT + "$")
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63 BRACELESS_IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT[2:-2] + "$")
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64 ZONE_ID_RE = re.compile("(" + ZONE_ID_PAT + r")\]$")
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65
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66 SUBAUTHORITY_PAT = (u"^(?:(.*)@)?(%s|%s|%s)(?::([0-9]{0,5}))?$") % (
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67 REG_NAME_PAT,
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68 IPV4_PAT,
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69 IPV6_ADDRZ_PAT,
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70 )
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71 SUBAUTHORITY_RE = re.compile(SUBAUTHORITY_PAT, re.UNICODE | re.DOTALL)
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72
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73 UNRESERVED_CHARS = set(
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74 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._-~"
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75 )
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76 SUB_DELIM_CHARS = set("!$&'()*+,;=")
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77 USERINFO_CHARS = UNRESERVED_CHARS | SUB_DELIM_CHARS | {":"}
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78 PATH_CHARS = USERINFO_CHARS | {"@", "/"}
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79 QUERY_CHARS = FRAGMENT_CHARS = PATH_CHARS | {"?"}
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80
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81
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82 class Url(namedtuple("Url", url_attrs)):
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83 """
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84 Data structure for representing an HTTP URL. Used as a return value for
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85 :func:`parse_url`. Both the scheme and host are normalized as they are
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86 both case-insensitive according to RFC 3986.
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87 """
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88
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89 __slots__ = ()
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90
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91 def __new__(
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92 cls,
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93 scheme=None,
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94 auth=None,
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95 host=None,
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96 port=None,
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97 path=None,
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98 query=None,
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99 fragment=None,
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100 ):
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101 if path and not path.startswith("/"):
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102 path = "/" + path
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103 if scheme is not None:
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104 scheme = scheme.lower()
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105 return super(Url, cls).__new__(
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106 cls, scheme, auth, host, port, path, query, fragment
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107 )
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108
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109 @property
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110 def hostname(self):
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111 """For backwards-compatibility with urlparse. We're nice like that."""
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112 return self.host
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113
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114 @property
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115 def request_uri(self):
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116 """Absolute path including the query string."""
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117 uri = self.path or "/"
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118
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119 if self.query is not None:
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120 uri += "?" + self.query
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121
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122 return uri
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123
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124 @property
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125 def netloc(self):
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126 """Network location including host and port"""
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127 if self.port:
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128 return "%s:%d" % (self.host, self.port)
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129 return self.host
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130
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131 @property
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132 def url(self):
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133 """
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134 Convert self into a url
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135
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136 This function should more or less round-trip with :func:`.parse_url`. The
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137 returned url may not be exactly the same as the url inputted to
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138 :func:`.parse_url`, but it should be equivalent by the RFC (e.g., urls
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139 with a blank port will have : removed).
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140
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141 Example: ::
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142
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143 >>> U = parse_url('http://google.com/mail/')
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144 >>> U.url
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145 'http://google.com/mail/'
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146 >>> Url('http', 'username:password', 'host.com', 80,
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147 ... '/path', 'query', 'fragment').url
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148 'http://username:password@host.com:80/path?query#fragment'
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149 """
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150 scheme, auth, host, port, path, query, fragment = self
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151 url = u""
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152
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153 # We use "is not None" we want things to happen with empty strings (or 0 port)
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154 if scheme is not None:
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155 url += scheme + u"://"
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156 if auth is not None:
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157 url += auth + u"@"
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158 if host is not None:
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159 url += host
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160 if port is not None:
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161 url += u":" + str(port)
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162 if path is not None:
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163 url += path
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164 if query is not None:
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165 url += u"?" + query
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166 if fragment is not None:
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167 url += u"#" + fragment
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168
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169 return url
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170
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171 def __str__(self):
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172 return self.url
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173
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174
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175 def split_first(s, delims):
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176 """
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177 .. deprecated:: 1.25
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178
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179 Given a string and an iterable of delimiters, split on the first found
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180 delimiter. Return two split parts and the matched delimiter.
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181
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182 If not found, then the first part is the full input string.
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183
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184 Example::
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185
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186 >>> split_first('foo/bar?baz', '?/=')
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187 ('foo', 'bar?baz', '/')
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188 >>> split_first('foo/bar?baz', '123')
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189 ('foo/bar?baz', '', None)
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190
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191 Scales linearly with number of delims. Not ideal for large number of delims.
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192 """
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193 min_idx = None
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194 min_delim = None
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195 for d in delims:
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196 idx = s.find(d)
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197 if idx < 0:
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198 continue
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199
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200 if min_idx is None or idx < min_idx:
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201 min_idx = idx
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202 min_delim = d
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203
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204 if min_idx is None or min_idx < 0:
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205 return s, "", None
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206
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207 return s[:min_idx], s[min_idx + 1 :], min_delim
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208
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209
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210 def _encode_invalid_chars(component, allowed_chars, encoding="utf-8"):
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211 """Percent-encodes a URI component without reapplying
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212 onto an already percent-encoded component.
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213 """
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214 if component is None:
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215 return component
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216
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217 component = six.ensure_text(component)
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218
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219 # Normalize existing percent-encoded bytes.
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220 # Try to see if the component we're encoding is already percent-encoded
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221 # so we can skip all '%' characters but still encode all others.
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222 component, percent_encodings = PERCENT_RE.subn(
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223 lambda match: match.group(0).upper(), component
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224 )
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225
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226 uri_bytes = component.encode("utf-8", "surrogatepass")
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227 is_percent_encoded = percent_encodings == uri_bytes.count(b"%")
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228 encoded_component = bytearray()
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229
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230 for i in range(0, len(uri_bytes)):
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231 # Will return a single character bytestring on both Python 2 & 3
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232 byte = uri_bytes[i : i + 1]
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233 byte_ord = ord(byte)
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234 if (is_percent_encoded and byte == b"%") or (
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235 byte_ord < 128 and byte.decode() in allowed_chars
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236 ):
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237 encoded_component += byte
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238 continue
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239 encoded_component.extend(b"%" + (hex(byte_ord)[2:].encode().zfill(2).upper()))
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240
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241 return encoded_component.decode(encoding)
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242
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243
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244 def _remove_path_dot_segments(path):
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245 # See http://tools.ietf.org/html/rfc3986#section-5.2.4 for pseudo-code
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246 segments = path.split("/") # Turn the path into a list of segments
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247 output = [] # Initialize the variable to use to store output
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248
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
249 for segment in segments:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
250 # '.' is the current directory, so ignore it, it is superfluous
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
251 if segment == ".":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
252 continue
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
253 # Anything other than '..', should be appended to the output
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
254 elif segment != "..":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
255 output.append(segment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
256 # In this case segment == '..', if we can, we should pop the last
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
257 # element
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
258 elif output:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
259 output.pop()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
260
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
261 # If the path starts with '/' and the output is empty or the first string
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
262 # is non-empty
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
263 if path.startswith("/") and (not output or output[0]):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
264 output.insert(0, "")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
265
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
266 # If the path starts with '/.' or '/..' ensure we add one more empty
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
267 # string to add a trailing '/'
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
268 if path.endswith(("/.", "/..")):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
269 output.append("")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
270
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
271 return "/".join(output)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
272
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
273
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
274 def _normalize_host(host, scheme):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
275 if host:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
276 if isinstance(host, six.binary_type):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
277 host = six.ensure_str(host)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
278
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
279 if scheme in NORMALIZABLE_SCHEMES:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
280 is_ipv6 = IPV6_ADDRZ_RE.match(host)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
281 if is_ipv6:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
282 match = ZONE_ID_RE.search(host)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
283 if match:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
284 start, end = match.span(1)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
285 zone_id = host[start:end]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
286
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
287 if zone_id.startswith("%25") and zone_id != "%25":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
288 zone_id = zone_id[3:]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
289 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
290 zone_id = zone_id[1:]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
291 zone_id = "%" + _encode_invalid_chars(zone_id, UNRESERVED_CHARS)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
292 return host[:start].lower() + zone_id + host[end:]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
293 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
294 return host.lower()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
295 elif not IPV4_RE.match(host):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
296 return six.ensure_str(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
297 b".".join([_idna_encode(label) for label in host.split(".")])
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
298 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
299 return host
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
300
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
301
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
302 def _idna_encode(name):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
303 if name and any([ord(x) > 128 for x in name]):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
304 try:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
305 import idna
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
306 except ImportError:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
307 six.raise_from(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
308 LocationParseError("Unable to parse URL without the 'idna' module"),
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
309 None,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
310 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
311 try:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
312 return idna.encode(name.lower(), strict=True, std3_rules=True)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
313 except idna.IDNAError:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
314 six.raise_from(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
315 LocationParseError(u"Name '%s' is not a valid IDNA label" % name), None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
316 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
317 return name.lower().encode("ascii")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
318
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
319
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
320 def _encode_target(target):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
321 """Percent-encodes a request target so that there are no invalid characters"""
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
322 path, query = TARGET_RE.match(target).groups()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
323 target = _encode_invalid_chars(path, PATH_CHARS)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
324 query = _encode_invalid_chars(query, QUERY_CHARS)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
325 if query is not None:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
326 target += "?" + query
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
327 return target
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
328
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
329
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
330 def parse_url(url):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
331 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
332 Given a url, return a parsed :class:`.Url` namedtuple. Best-effort is
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
333 performed to parse incomplete urls. Fields not provided will be None.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
334 This parser is RFC 3986 compliant.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
335
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
336 The parser logic and helper functions are based heavily on
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
337 work done in the ``rfc3986`` module.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
338
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
339 :param str url: URL to parse into a :class:`.Url` namedtuple.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
340
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
341 Partly backwards-compatible with :mod:`urlparse`.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
342
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
343 Example::
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
344
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
345 >>> parse_url('http://google.com/mail/')
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
346 Url(scheme='http', host='google.com', port=None, path='/mail/', ...)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
347 >>> parse_url('google.com:80')
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
348 Url(scheme=None, host='google.com', port=80, path=None, ...)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
349 >>> parse_url('/foo?bar')
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
350 Url(scheme=None, host=None, port=None, path='/foo', query='bar', ...)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
351 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
352 if not url:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
353 # Empty
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
354 return Url()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
355
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
356 source_url = url
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
357 if not SCHEME_RE.search(url):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
358 url = "//" + url
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
359
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
360 try:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
361 scheme, authority, path, query, fragment = URI_RE.match(url).groups()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
362 normalize_uri = scheme is None or scheme.lower() in NORMALIZABLE_SCHEMES
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
363
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
364 if scheme:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
365 scheme = scheme.lower()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
366
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
367 if authority:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
368 auth, host, port = SUBAUTHORITY_RE.match(authority).groups()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
369 if auth and normalize_uri:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
370 auth = _encode_invalid_chars(auth, USERINFO_CHARS)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
371 if port == "":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
372 port = None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
373 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
374 auth, host, port = None, None, None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
375
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
376 if port is not None:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
377 port = int(port)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
378 if not (0 <= port <= 65535):
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379 raise LocationParseError(url)
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380
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381 host = _normalize_host(host, scheme)
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382
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383 if normalize_uri and path:
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384 path = _remove_path_dot_segments(path)
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385 path = _encode_invalid_chars(path, PATH_CHARS)
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386 if normalize_uri and query:
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387 query = _encode_invalid_chars(query, QUERY_CHARS)
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388 if normalize_uri and fragment:
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389 fragment = _encode_invalid_chars(fragment, FRAGMENT_CHARS)
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390
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391 except (ValueError, AttributeError):
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392 return six.raise_from(LocationParseError(source_url), None)
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393
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394 # For the sake of backwards compatibility we put empty
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395 # string values for path if there are any defined values
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396 # beyond the path in the URL.
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397 # TODO: Remove this when we break backwards compatibility.
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398 if not path:
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399 if query is not None or fragment is not None:
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400 path = ""
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401 else:
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402 path = None
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403
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404 # Ensure that each part of the URL is a `str` for
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405 # backwards compatibility.
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406 if isinstance(url, six.text_type):
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407 ensure_func = six.ensure_text
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408 else:
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409 ensure_func = six.ensure_str
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410
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411 def ensure_type(x):
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412 return x if x is None else ensure_func(x)
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413
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414 return Url(
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415 scheme=ensure_type(scheme),
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416 auth=ensure_type(auth),
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417 host=ensure_type(host),
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418 port=port,
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419 path=ensure_type(path),
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420 query=ensure_type(query),
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421 fragment=ensure_type(fragment),
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422 )
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423
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424
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425 def get_host(url):
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426 """
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427 Deprecated. Use :func:`parse_url` instead.
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428 """
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429 p = parse_url(url)
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430 return p.scheme or "http", p.hostname, p.port