Mercurial > hg
annotate mercurial/urllibcompat.py @ 35616:706aa203b396
fileset: add a lightweight file filtering language
This patch was inspired by one that Jun Wu authored for the fb-experimental
repo, to avoid using matcher for efficiency[1]. We want a way to specify what
files will be converted to LFS at commit time. And per discussion, we also want
to specify what files to skip, text diff, or merge in another config option.
The current `lfs.threshold` config option could not satisfy complex needs. I'm
putting it in a core package because Augie floated the idea of also using it for
narrow and sparse.
Yuya suggested farming out to fileset.parse(), which added support for more
symbols. The only fileset element not supported here is 'negate'. (List isn't
supported by filesets either.) I also changed the 'always' token to the 'all()'
predicate for consistency, and introduced 'none()' to improve readability in a
future tracked file based config. The extension operator was changed from '.'
to '**', to match how recursive path globs are specified. Finally, I changed
the path matcher from '/' to 'path:' at Yuya's suggestion, for consistency with
matcher. Unfortunately, ':' is currently reserved in filesets, so this has to
be quoted to be processed as a string instead of a symbol[2]. We should
probably revisit that, because it's seriously ugly. But it's only used by an
experimental extension, and I think using a file based config for LFS may drive
some more tweaks, so I'm settling for this for now.
I reserved all of the glob characters in fileset except '.' and '_' for the
extension test because those are likely valid extension characters.
Sample filter settings:
all() # everything
size(">20MB") # larger than 20MB
!**.txt # except for .txt files
**.zip | **.tar.gz | **.7z # some types of compressed files
"path:bin" # files under "bin" in the project root
[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-December/109387.html
[2] https://www.mercurial-scm.org/pipermail/mercurial-devel/2018-January/109729.html
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Wed, 10 Jan 2018 22:23:34 -0500 |
parents | 192f7b126ed2 |
children | a3d42d1865f1 |
rev | line source |
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1 # urllibcompat.py - adapters to ease using urllib2 on Py2 and urllib on Py3 |
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2 # |
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3 # Copyright 2017 Google, Inc. |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 from __future__ import absolute_import |
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8 |
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9 from . import pycompat |
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10 |
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11 _sysstr = pycompat.sysstr |
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12 |
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13 class _pycompatstub(object): |
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14 def __init__(self): |
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15 self._aliases = {} |
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16 |
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17 def _registeraliases(self, origin, items): |
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18 """Add items that will be populated at the first access""" |
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19 items = map(_sysstr, items) |
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20 self._aliases.update( |
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21 (item.replace(_sysstr('_'), _sysstr('')).lower(), (origin, item)) |
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22 for item in items) |
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23 |
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24 def _registeralias(self, origin, attr, name): |
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25 """Alias ``origin``.``attr`` as ``name``""" |
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26 self._aliases[_sysstr(name)] = (origin, _sysstr(attr)) |
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27 |
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28 def __getattr__(self, name): |
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29 try: |
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30 origin, item = self._aliases[name] |
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31 except KeyError: |
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32 raise AttributeError(name) |
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33 self.__dict__[name] = obj = getattr(origin, item) |
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34 return obj |
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35 |
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36 httpserver = _pycompatstub() |
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37 urlreq = _pycompatstub() |
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38 urlerr = _pycompatstub() |
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39 |
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40 if pycompat.ispy3: |
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41 import urllib.parse |
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42 urlreq._registeraliases(urllib.parse, ( |
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43 "splitattr", |
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44 "splitpasswd", |
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45 "splitport", |
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46 "splituser", |
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47 "urlparse", |
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48 "urlunparse", |
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49 )) |
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50 urlreq._registeralias(urllib.parse, "unquote_to_bytes", "unquote") |
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51 import urllib.request |
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52 urlreq._registeraliases(urllib.request, ( |
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53 "AbstractHTTPHandler", |
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54 "BaseHandler", |
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55 "build_opener", |
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56 "FileHandler", |
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57 "FTPHandler", |
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58 "ftpwrapper", |
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59 "HTTPHandler", |
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60 "HTTPSHandler", |
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61 "install_opener", |
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62 "pathname2url", |
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63 "HTTPBasicAuthHandler", |
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64 "HTTPDigestAuthHandler", |
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65 "HTTPPasswordMgrWithDefaultRealm", |
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66 "ProxyHandler", |
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67 "Request", |
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68 "url2pathname", |
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69 "urlopen", |
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70 )) |
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71 import urllib.response |
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72 urlreq._registeraliases(urllib.response, ( |
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73 "addclosehook", |
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74 "addinfourl", |
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75 )) |
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76 import urllib.error |
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77 urlerr._registeraliases(urllib.error, ( |
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78 "HTTPError", |
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79 "URLError", |
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80 )) |
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81 import http.server |
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82 httpserver._registeraliases(http.server, ( |
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83 "HTTPServer", |
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84 "BaseHTTPRequestHandler", |
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85 "SimpleHTTPRequestHandler", |
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86 "CGIHTTPRequestHandler", |
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87 )) |
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88 |
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89 # urllib.parse.quote() accepts both str and bytes, decodes bytes |
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90 # (if necessary), and returns str. This is wonky. We provide a custom |
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91 # implementation that only accepts bytes and emits bytes. |
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92 def quote(s, safe=r'/'): |
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93 s = urllib.parse.quote_from_bytes(s, safe=safe) |
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94 return s.encode('ascii', 'strict') |
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95 |
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96 # urllib.parse.urlencode() returns str. We use this function to make |
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97 # sure we return bytes. |
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98 def urlencode(query, doseq=False): |
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99 s = urllib.parse.urlencode(query, doseq=doseq) |
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100 return s.encode('ascii') |
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101 |
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102 urlreq.quote = quote |
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103 urlreq.urlencode = urlencode |
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104 |
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105 def getfullurl(req): |
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106 return req.full_url |
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107 |
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108 def gethost(req): |
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109 return req.host |
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110 |
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111 def getselector(req): |
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112 return req.selector |
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113 |
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114 def getdata(req): |
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115 return req.data |
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116 |
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117 def hasdata(req): |
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118 return req.data is not None |
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119 else: |
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120 import BaseHTTPServer |
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121 import CGIHTTPServer |
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122 import SimpleHTTPServer |
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123 import urllib2 |
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124 import urllib |
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125 import urlparse |
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126 urlreq._registeraliases(urllib, ( |
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127 "addclosehook", |
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128 "addinfourl", |
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129 "ftpwrapper", |
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130 "pathname2url", |
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131 "quote", |
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132 "splitattr", |
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133 "splitpasswd", |
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134 "splitport", |
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135 "splituser", |
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136 "unquote", |
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137 "url2pathname", |
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138 "urlencode", |
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139 )) |
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140 urlreq._registeraliases(urllib2, ( |
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141 "AbstractHTTPHandler", |
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142 "BaseHandler", |
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143 "build_opener", |
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144 "FileHandler", |
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145 "FTPHandler", |
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146 "HTTPBasicAuthHandler", |
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147 "HTTPDigestAuthHandler", |
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148 "HTTPHandler", |
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149 "HTTPPasswordMgrWithDefaultRealm", |
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150 "HTTPSHandler", |
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151 "install_opener", |
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152 "ProxyHandler", |
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153 "Request", |
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154 "urlopen", |
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155 )) |
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156 urlreq._registeraliases(urlparse, ( |
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157 "urlparse", |
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158 "urlunparse", |
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159 )) |
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160 urlerr._registeraliases(urllib2, ( |
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161 "HTTPError", |
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162 "URLError", |
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163 )) |
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164 httpserver._registeraliases(BaseHTTPServer, ( |
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165 "HTTPServer", |
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166 "BaseHTTPRequestHandler", |
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167 )) |
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168 httpserver._registeraliases(SimpleHTTPServer, ( |
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169 "SimpleHTTPRequestHandler", |
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170 )) |
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171 httpserver._registeraliases(CGIHTTPServer, ( |
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172 "CGIHTTPRequestHandler", |
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173 )) |
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174 |
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175 def gethost(req): |
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176 return req.get_host() |
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177 |
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178 def getselector(req): |
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179 return req.get_selector() |
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180 |
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181 def getfullurl(req): |
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182 return req.get_full_url() |
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183 |
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184 def getdata(req): |
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185 return req.get_data() |
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186 |
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187 def hasdata(req): |
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188 return req.has_data() |