Mercurial > hg
annotate mercurial/url.py @ 43106:d783f945a701
py3: finish porting iteritems() to pycompat and remove source transformer
This commit finishes porting .iteritems() to pycompat.iteritems()
for the mercurial package.
The translation of .iteritems() to .items() was the last conversion
performed by the source transformer. With the porting to pycompat
complete, we no longer have a need for the source transformer. So
the source transformer has been removed. Good riddance! The code
base is now compatible with Python 2 and Python 3.
For the record, as the person who introduced the source transformer,
it brings me joy to delete it. It accomplished its goal to facilitate
a port to Python 3 without overly burdening people on some painful
low-level differences between Python 2 and 3. It is unfortunate we
still have to wallpaper over many differences with the pycompat
shim. But it is what it is.
Differential Revision: https://phab.mercurial-scm.org/D7015
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 07 Oct 2019 00:04:04 -0400 |
parents | c59eb1560c44 |
children | 9f70512ae2cf |
rev | line source |
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1 # url.py - HTTP handling for mercurial |
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2 # |
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3 # Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com> |
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4 # Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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5 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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6 # |
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7 # This software may be used and distributed according to the terms of the |
10263 | 8 # GNU General Public License version 2 or any later version. |
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9 |
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10 from __future__ import absolute_import |
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11 |
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12 import base64 |
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13 import os |
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14 import socket |
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15 import sys |
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16 |
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17 from .i18n import _ |
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18 from .pycompat import getattr |
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19 from . import ( |
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20 encoding, |
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21 error, |
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22 httpconnection as httpconnectionmod, |
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23 keepalive, |
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24 pycompat, |
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25 sslutil, |
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26 urllibcompat, |
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27 util, |
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28 ) |
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29 from .utils import stringutil |
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30 |
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31 httplib = util.httplib |
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32 stringio = util.stringio |
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33 urlerr = util.urlerr |
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34 urlreq = util.urlreq |
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35 |
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36 |
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37 def escape(s, quote=None): |
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38 '''Replace special characters "&", "<" and ">" to HTML-safe sequences. |
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39 If the optional flag quote is true, the quotation mark character (") |
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40 is also translated. |
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41 |
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42 This is the same as cgi.escape in Python, but always operates on |
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43 bytes, whereas cgi.escape in Python 3 only works on unicodes. |
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44 ''' |
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45 s = s.replace(b"&", b"&") |
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46 s = s.replace(b"<", b"<") |
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47 s = s.replace(b">", b">") |
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48 if quote: |
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49 s = s.replace(b'"', b""") |
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50 return s |
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51 |
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52 |
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53 class passwordmgr(object): |
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54 def __init__(self, ui, passwddb): |
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55 self.ui = ui |
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56 self.passwddb = passwddb |
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57 |
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58 def add_password(self, realm, uri, user, passwd): |
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59 return self.passwddb.add_password(realm, uri, user, passwd) |
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60 |
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61 def find_user_password(self, realm, authuri): |
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62 assert isinstance(realm, (type(None), str)) |
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63 assert isinstance(authuri, str) |
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64 authinfo = self.passwddb.find_user_password(realm, authuri) |
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65 user, passwd = authinfo |
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66 user, passwd = pycompat.bytesurl(user), pycompat.bytesurl(passwd) |
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67 if user and passwd: |
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68 self._writedebug(user, passwd) |
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69 return (pycompat.strurl(user), pycompat.strurl(passwd)) |
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70 |
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71 if not user or not passwd: |
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72 res = httpconnectionmod.readauthforuri(self.ui, authuri, user) |
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73 if res: |
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74 group, auth = res |
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75 user, passwd = auth.get(b'username'), auth.get(b'password') |
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76 self.ui.debug(b"using auth.%s.* for authentication\n" % group) |
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77 if not user or not passwd: |
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78 u = util.url(pycompat.bytesurl(authuri)) |
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79 u.query = None |
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80 if not self.ui.interactive(): |
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81 raise error.Abort( |
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82 _(b'http authorization required for %s') |
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83 % util.hidepassword(bytes(u)) |
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84 ) |
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85 |
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86 self.ui.write( |
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87 _(b"http authorization required for %s\n") |
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88 % util.hidepassword(bytes(u)) |
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89 ) |
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90 self.ui.write(_(b"realm: %s\n") % pycompat.bytesurl(realm)) |
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91 if user: |
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92 self.ui.write(_(b"user: %s\n") % user) |
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93 else: |
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94 user = self.ui.prompt(_(b"user:"), default=None) |
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95 |
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96 if not passwd: |
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97 passwd = self.ui.getpass() |
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98 |
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99 self.passwddb.add_password(realm, authuri, user, passwd) |
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100 self._writedebug(user, passwd) |
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101 return (pycompat.strurl(user), pycompat.strurl(passwd)) |
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102 |
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103 def _writedebug(self, user, passwd): |
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104 msg = _(b'http auth: user %s, password %s\n') |
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105 self.ui.debug(msg % (user, passwd and b'*' * len(passwd) or b'not set')) |
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106 |
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107 def find_stored_password(self, authuri): |
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108 return self.passwddb.find_user_password(None, authuri) |
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109 |
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110 |
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111 class proxyhandler(urlreq.proxyhandler): |
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112 def __init__(self, ui): |
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113 proxyurl = ui.config(b"http_proxy", b"host") or encoding.environ.get( |
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114 b'http_proxy' |
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115 ) |
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116 # XXX proxyauthinfo = None |
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117 |
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118 if proxyurl: |
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119 # proxy can be proper url or host[:port] |
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120 if not ( |
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121 proxyurl.startswith(b'http:') or proxyurl.startswith(b'https:') |
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122 ): |
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123 proxyurl = b'http://' + proxyurl + b'/' |
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124 proxy = util.url(proxyurl) |
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125 if not proxy.user: |
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126 proxy.user = ui.config(b"http_proxy", b"user") |
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127 proxy.passwd = ui.config(b"http_proxy", b"passwd") |
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128 |
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129 # see if we should use a proxy for this url |
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130 no_list = [b"localhost", b"127.0.0.1"] |
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131 no_list.extend( |
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132 [p.lower() for p in ui.configlist(b"http_proxy", b"no")] |
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133 ) |
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134 no_list.extend( |
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135 [ |
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136 p.strip().lower() |
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137 for p in encoding.environ.get(b"no_proxy", b'').split(b',') |
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138 if p.strip() |
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139 ] |
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140 ) |
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141 # "http_proxy.always" config is for running tests on localhost |
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142 if ui.configbool(b"http_proxy", b"always"): |
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143 self.no_list = [] |
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144 else: |
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145 self.no_list = no_list |
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146 |
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147 # Keys and values need to be str because the standard library |
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148 # expects them to be. |
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149 proxyurl = str(proxy) |
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150 proxies = {r'http': proxyurl, r'https': proxyurl} |
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151 ui.debug(b'proxying through %s\n' % util.hidepassword(bytes(proxy))) |
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152 else: |
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153 proxies = {} |
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154 |
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155 urlreq.proxyhandler.__init__(self, proxies) |
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156 self.ui = ui |
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157 |
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158 def proxy_open(self, req, proxy, type_): |
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159 host = pycompat.bytesurl(urllibcompat.gethost(req)).split(b':')[0] |
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160 for e in self.no_list: |
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161 if host == e: |
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162 return None |
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163 if e.startswith(b'*.') and host.endswith(e[2:]): |
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164 return None |
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165 if e.startswith(b'.') and host.endswith(e[1:]): |
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166 return None |
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167 |
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168 return urlreq.proxyhandler.proxy_open(self, req, proxy, type_) |
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169 |
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170 |
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171 def _gen_sendfile(orgsend): |
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172 def _sendfile(self, data): |
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173 # send a file |
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174 if isinstance(data, httpconnectionmod.httpsendfile): |
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175 # if auth required, some data sent twice, so rewind here |
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176 data.seek(0) |
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177 for chunk in util.filechunkiter(data): |
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178 orgsend(self, chunk) |
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179 else: |
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180 orgsend(self, data) |
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181 |
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182 return _sendfile |
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183 |
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184 |
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185 has_https = util.safehasattr(urlreq, b'httpshandler') |
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186 |
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187 |
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188 class httpconnection(keepalive.HTTPConnection): |
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189 # must be able to send big bundle as stream. |
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190 send = _gen_sendfile(keepalive.HTTPConnection.send) |
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191 |
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192 def getresponse(self): |
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193 proxyres = getattr(self, 'proxyres', None) |
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194 if proxyres: |
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195 if proxyres.will_close: |
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196 self.close() |
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197 self.proxyres = None |
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198 return proxyres |
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199 return keepalive.HTTPConnection.getresponse(self) |
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200 |
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201 |
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202 # Large parts of this function have their origin from before Python 2.6 |
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203 # and could potentially be removed. |
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204 def _generic_start_transaction(handler, h, req): |
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205 tunnel_host = req._tunnel_host |
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206 if tunnel_host: |
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207 if tunnel_host[:7] not in [r'http://', r'https:/']: |
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208 tunnel_host = r'https://' + tunnel_host |
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209 new_tunnel = True |
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210 else: |
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211 tunnel_host = urllibcompat.getselector(req) |
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212 new_tunnel = False |
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213 |
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214 if new_tunnel or tunnel_host == urllibcompat.getfullurl(req): # has proxy |
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215 u = util.url(pycompat.bytesurl(tunnel_host)) |
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216 if new_tunnel or u.scheme == b'https': # only use CONNECT for HTTPS |
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217 h.realhostport = b':'.join([u.host, (u.port or b'443')]) |
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218 h.headers = req.headers.copy() |
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219 h.headers.update(handler.parent.addheaders) |
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220 return |
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221 |
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222 h.realhostport = None |
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223 h.headers = None |
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224 |
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225 |
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226 def _generic_proxytunnel(self): |
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227 proxyheaders = dict( |
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228 [ |
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229 (x, self.headers[x]) |
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230 for x in self.headers |
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231 if x.lower().startswith(r'proxy-') |
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232 ] |
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233 ) |
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234 self.send(b'CONNECT %s HTTP/1.0\r\n' % self.realhostport) |
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235 for header in pycompat.iteritems(proxyheaders): |
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236 self.send(b'%s: %s\r\n' % header) |
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237 self.send(b'\r\n') |
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238 |
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239 # majority of the following code is duplicated from |
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240 # httplib.HTTPConnection as there are no adequate places to |
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241 # override functions to provide the needed functionality |
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242 # strict was removed in Python 3.4. |
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243 kwargs = {} |
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244 if not pycompat.ispy3: |
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245 kwargs[b'strict'] = self.strict |
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246 |
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247 res = self.response_class(self.sock, method=self._method, **kwargs) |
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248 |
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249 while True: |
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250 version, status, reason = res._read_status() |
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251 if status != httplib.CONTINUE: |
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252 break |
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253 # skip lines that are all whitespace |
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254 list(iter(lambda: res.fp.readline().strip(), b'')) |
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255 res.status = status |
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256 res.reason = reason.strip() |
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257 |
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258 if res.status == 200: |
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259 # skip lines until we find a blank line |
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260 list(iter(res.fp.readline, b'\r\n')) |
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261 return True |
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262 |
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263 if version == b'HTTP/1.0': |
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264 res.version = 10 |
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265 elif version.startswith(b'HTTP/1.'): |
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266 res.version = 11 |
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267 elif version == b'HTTP/0.9': |
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268 res.version = 9 |
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269 else: |
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270 raise httplib.UnknownProtocol(version) |
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271 |
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272 if res.version == 9: |
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273 res.length = None |
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274 res.chunked = 0 |
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275 res.will_close = 1 |
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276 res.msg = httplib.HTTPMessage(stringio()) |
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277 return False |
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278 |
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279 res.msg = httplib.HTTPMessage(res.fp) |
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280 res.msg.fp = None |
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281 |
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282 # are we using the chunked-style of transfer encoding? |
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283 trenc = res.msg.getheader(b'transfer-encoding') |
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284 if trenc and trenc.lower() == b"chunked": |
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285 res.chunked = 1 |
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286 res.chunk_left = None |
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287 else: |
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288 res.chunked = 0 |
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289 |
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290 # will the connection close at the end of the response? |
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291 res.will_close = res._check_close() |
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292 |
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293 # do we have a Content-Length? |
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294 # NOTE: RFC 2616, section 4.4, #3 says we ignore this if |
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295 # transfer-encoding is "chunked" |
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296 length = res.msg.getheader(b'content-length') |
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297 if length and not res.chunked: |
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298 try: |
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299 res.length = int(length) |
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300 except ValueError: |
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301 res.length = None |
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302 else: |
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303 if res.length < 0: # ignore nonsensical negative lengths |
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304 res.length = None |
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305 else: |
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306 res.length = None |
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307 |
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308 # does the body have a fixed length? (of zero) |
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309 if ( |
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310 status == httplib.NO_CONTENT |
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311 or status == httplib.NOT_MODIFIED |
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312 or 100 <= status < 200 |
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313 or res._method == b'HEAD' # 1xx codes |
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314 ): |
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315 res.length = 0 |
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316 |
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317 # if the connection remains open, and we aren't using chunked, and |
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318 # a content-length was not provided, then assume that the connection |
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319 # WILL close. |
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320 if not res.will_close and not res.chunked and res.length is None: |
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321 res.will_close = 1 |
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322 |
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323 self.proxyres = res |
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324 |
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325 return False |
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326 |
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327 |
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328 class httphandler(keepalive.HTTPHandler): |
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329 def http_open(self, req): |
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330 return self.do_open(httpconnection, req) |
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331 |
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332 def _start_transaction(self, h, req): |
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333 _generic_start_transaction(self, h, req) |
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334 return keepalive.HTTPHandler._start_transaction(self, h, req) |
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335 |
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336 |
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337 class logginghttpconnection(keepalive.HTTPConnection): |
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338 def __init__(self, createconn, *args, **kwargs): |
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339 keepalive.HTTPConnection.__init__(self, *args, **kwargs) |
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340 self._create_connection = createconn |
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341 |
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342 if sys.version_info < (2, 7, 7): |
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343 # copied from 2.7.14, since old implementations directly call |
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344 # socket.create_connection() |
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345 def connect(self): |
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346 self.sock = self._create_connection( |
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347 (self.host, self.port), self.timeout, self.source_address |
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348 ) |
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349 if self._tunnel_host: |
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350 self._tunnel() |
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351 |
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352 |
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353 class logginghttphandler(httphandler): |
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354 """HTTP handler that logs socket I/O.""" |
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355 |
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356 def __init__(self, logfh, name, observeropts, timeout=None): |
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357 super(logginghttphandler, self).__init__(timeout=timeout) |
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358 |
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359 self._logfh = logfh |
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360 self._logname = name |
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361 self._observeropts = observeropts |
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362 |
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363 # do_open() calls the passed class to instantiate an HTTPConnection. We |
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364 # pass in a callable method that creates a custom HTTPConnection instance |
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365 # whose callback to create the socket knows how to proxy the socket. |
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366 def http_open(self, req): |
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367 return self.do_open(self._makeconnection, req) |
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368 |
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369 def _makeconnection(self, *args, **kwargs): |
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370 def createconnection(*args, **kwargs): |
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371 sock = socket.create_connection(*args, **kwargs) |
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372 return util.makeloggingsocket( |
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373 self._logfh, sock, self._logname, **self._observeropts |
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374 ) |
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375 |
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376 return logginghttpconnection(createconnection, *args, **kwargs) |
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377 |
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378 |
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379 if has_https: |
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380 |
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381 class httpsconnection(keepalive.HTTPConnection): |
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382 response_class = keepalive.HTTPResponse |
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383 default_port = httplib.HTTPS_PORT |
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384 # must be able to send big bundle as stream. |
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385 send = _gen_sendfile(keepalive.safesend) |
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386 getresponse = keepalive.wrapgetresponse(httplib.HTTPConnection) |
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387 |
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388 def __init__( |
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389 self, |
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390 host, |
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391 port=None, |
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392 key_file=None, |
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393 cert_file=None, |
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394 *args, |
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395 **kwargs |
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396 ): |
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397 keepalive.HTTPConnection.__init__(self, host, port, *args, **kwargs) |
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398 self.key_file = key_file |
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399 self.cert_file = cert_file |
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400 |
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401 def connect(self): |
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402 self.sock = socket.create_connection((self.host, self.port)) |
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403 |
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404 host = self.host |
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405 if self.realhostport: # use CONNECT proxy |
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406 _generic_proxytunnel(self) |
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407 host = self.realhostport.rsplit(b':', 1)[0] |
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408 self.sock = sslutil.wrapsocket( |
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409 self.sock, |
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410 self.key_file, |
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411 self.cert_file, |
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412 ui=self.ui, |
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413 serverhostname=host, |
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414 ) |
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415 sslutil.validatesocket(self.sock) |
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416 |
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417 class httpshandler(keepalive.KeepAliveHandler, urlreq.httpshandler): |
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418 def __init__(self, ui, timeout=None): |
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419 keepalive.KeepAliveHandler.__init__(self, timeout=timeout) |
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420 urlreq.httpshandler.__init__(self) |
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421 self.ui = ui |
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422 self.pwmgr = passwordmgr(self.ui, self.ui.httppasswordmgrdb) |
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423 |
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424 def _start_transaction(self, h, req): |
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425 _generic_start_transaction(self, h, req) |
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426 return keepalive.KeepAliveHandler._start_transaction(self, h, req) |
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427 |
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428 def https_open(self, req): |
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429 # urllibcompat.getfullurl() does not contain credentials |
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430 # and we may need them to match the certificates. |
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431 url = urllibcompat.getfullurl(req) |
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432 user, password = self.pwmgr.find_stored_password(url) |
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433 res = httpconnectionmod.readauthforuri(self.ui, url, user) |
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434 if res: |
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435 group, auth = res |
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436 self.auth = auth |
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437 self.ui.debug(b"using auth.%s.* for authentication\n" % group) |
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438 else: |
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439 self.auth = None |
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440 return self.do_open(self._makeconnection, req) |
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441 |
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442 def _makeconnection(self, host, port=None, *args, **kwargs): |
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443 keyfile = None |
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444 certfile = None |
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445 |
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446 if len(args) >= 1: # key_file |
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447 keyfile = args[0] |
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448 if len(args) >= 2: # cert_file |
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449 certfile = args[1] |
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450 args = args[2:] |
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451 |
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452 # if the user has specified different key/cert files in |
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453 # hgrc, we prefer these |
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454 if self.auth and b'key' in self.auth and b'cert' in self.auth: |
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455 keyfile = self.auth[b'key'] |
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456 certfile = self.auth[b'cert'] |
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457 |
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458 conn = httpsconnection( |
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459 host, port, keyfile, certfile, *args, **kwargs |
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460 ) |
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461 conn.ui = self.ui |
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462 return conn |
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463 |
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464 |
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465 class httpdigestauthhandler(urlreq.httpdigestauthhandler): |
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466 def __init__(self, *args, **kwargs): |
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467 urlreq.httpdigestauthhandler.__init__(self, *args, **kwargs) |
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468 self.retried_req = None |
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469 |
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470 def reset_retry_count(self): |
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471 # Python 2.6.5 will call this on 401 or 407 errors and thus loop |
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472 # forever. We disable reset_retry_count completely and reset in |
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473 # http_error_auth_reqed instead. |
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474 pass |
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475 |
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476 def http_error_auth_reqed(self, auth_header, host, req, headers): |
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477 # Reset the retry counter once for each request. |
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478 if req is not self.retried_req: |
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479 self.retried_req = req |
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480 self.retried = 0 |
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481 return urlreq.httpdigestauthhandler.http_error_auth_reqed( |
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482 self, auth_header, host, req, headers |
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483 ) |
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484 |
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485 |
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486 class httpbasicauthhandler(urlreq.httpbasicauthhandler): |
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487 def __init__(self, *args, **kwargs): |
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488 self.auth = None |
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489 urlreq.httpbasicauthhandler.__init__(self, *args, **kwargs) |
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490 self.retried_req = None |
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491 |
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492 def http_request(self, request): |
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493 if self.auth: |
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494 request.add_unredirected_header(self.auth_header, self.auth) |
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495 |
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496 return request |
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497 |
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498 def https_request(self, request): |
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499 if self.auth: |
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500 request.add_unredirected_header(self.auth_header, self.auth) |
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501 |
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502 return request |
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503 |
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504 def reset_retry_count(self): |
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505 # Python 2.6.5 will call this on 401 or 407 errors and thus loop |
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506 # forever. We disable reset_retry_count completely and reset in |
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507 # http_error_auth_reqed instead. |
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508 pass |
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509 |
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510 def http_error_auth_reqed(self, auth_header, host, req, headers): |
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511 # Reset the retry counter once for each request. |
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512 if req is not self.retried_req: |
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513 self.retried_req = req |
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514 self.retried = 0 |
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515 return urlreq.httpbasicauthhandler.http_error_auth_reqed( |
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516 self, auth_header, host, req, headers |
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517 ) |
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518 |
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519 def retry_http_basic_auth(self, host, req, realm): |
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520 user, pw = self.passwd.find_user_password( |
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521 realm, urllibcompat.getfullurl(req) |
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522 ) |
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523 if pw is not None: |
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524 raw = b"%s:%s" % (pycompat.bytesurl(user), pycompat.bytesurl(pw)) |
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525 auth = r'Basic %s' % pycompat.strurl(base64.b64encode(raw).strip()) |
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526 if req.get_header(self.auth_header, None) == auth: |
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527 return None |
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528 self.auth = auth |
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529 req.add_unredirected_header(self.auth_header, auth) |
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530 return self.parent.open(req) |
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531 else: |
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532 return None |
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533 |
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534 |
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535 class cookiehandler(urlreq.basehandler): |
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536 def __init__(self, ui): |
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537 self.cookiejar = None |
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538 |
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539 cookiefile = ui.config(b'auth', b'cookiefile') |
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540 if not cookiefile: |
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541 return |
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542 |
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543 cookiefile = util.expandpath(cookiefile) |
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544 try: |
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545 cookiejar = util.cookielib.MozillaCookieJar( |
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546 pycompat.fsdecode(cookiefile) |
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547 ) |
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548 cookiejar.load() |
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549 self.cookiejar = cookiejar |
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550 except util.cookielib.LoadError as e: |
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551 ui.warn( |
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552 _( |
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553 b'(error loading cookie file %s: %s; continuing without ' |
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554 b'cookies)\n' |
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555 ) |
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556 % (cookiefile, stringutil.forcebytestr(e)) |
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557 ) |
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558 |
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559 def http_request(self, request): |
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560 if self.cookiejar: |
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561 self.cookiejar.add_cookie_header(request) |
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562 |
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563 return request |
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564 |
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565 def https_request(self, request): |
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566 if self.cookiejar: |
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567 self.cookiejar.add_cookie_header(request) |
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|
568 |
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569 return request |
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570 |
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571 |
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572 handlerfuncs = [] |
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573 |
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574 |
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575 def opener( |
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576 ui, |
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577 authinfo=None, |
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578 useragent=None, |
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579 loggingfh=None, |
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580 loggingname=b's', |
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581 loggingopts=None, |
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582 sendaccept=True, |
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583 ): |
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584 ''' |
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585 construct an opener suitable for urllib2 |
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586 authinfo will be added to the password manager |
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587 |
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588 The opener can be configured to log socket events if the various |
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589 ``logging*`` arguments are specified. |
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590 |
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591 ``loggingfh`` denotes a file object to log events to. |
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592 ``loggingname`` denotes the name of the to print when logging. |
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593 ``loggingopts`` is a dict of keyword arguments to pass to the constructed |
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594 ``util.socketobserver`` instance. |
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595 |
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596 ``sendaccept`` allows controlling whether the ``Accept`` request header |
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597 is sent. The header is sent by default. |
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598 ''' |
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599 timeout = ui.configwith(float, b'http', b'timeout') |
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600 handlers = [] |
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601 |
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602 if loggingfh: |
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603 handlers.append( |
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604 logginghttphandler( |
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605 loggingfh, loggingname, loggingopts or {}, timeout=timeout |
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606 ) |
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607 ) |
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608 # We don't yet support HTTPS when logging I/O. If we attempt to open |
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609 # an HTTPS URL, we'll likely fail due to unknown protocol. |
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610 |
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611 else: |
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612 handlers.append(httphandler(timeout=timeout)) |
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613 if has_https: |
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614 handlers.append(httpshandler(ui, timeout=timeout)) |
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615 |
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616 handlers.append(proxyhandler(ui)) |
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617 |
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618 passmgr = passwordmgr(ui, ui.httppasswordmgrdb) |
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619 if authinfo is not None: |
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620 realm, uris, user, passwd = authinfo |
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621 saveduser, savedpass = passmgr.find_stored_password(uris[0]) |
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622 if user != saveduser or passwd: |
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623 passmgr.add_password(realm, uris, user, passwd) |
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624 ui.debug( |
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625 b'http auth: user %s, password %s\n' |
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626 % (user, passwd and b'*' * len(passwd) or b'not set') |
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627 ) |
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628 |
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629 handlers.extend( |
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630 (httpbasicauthhandler(passmgr), httpdigestauthhandler(passmgr)) |
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631 ) |
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632 handlers.extend([h(ui, passmgr) for h in handlerfuncs]) |
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633 handlers.append(cookiehandler(ui)) |
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634 opener = urlreq.buildopener(*handlers) |
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635 |
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636 # keepalive.py's handlers will populate these attributes if they exist. |
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637 opener.requestscount = 0 |
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638 opener.sentbytescount = 0 |
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639 opener.receivedbytescount = 0 |
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640 |
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641 # The user agent should should *NOT* be used by servers for e.g. |
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642 # protocol detection or feature negotiation: there are other |
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643 # facilities for that. |
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644 # |
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645 # "mercurial/proto-1.0" was the original user agent string and |
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646 # exists for backwards compatibility reasons. |
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647 # |
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648 # The "(Mercurial %s)" string contains the distribution |
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649 # name and version. Other client implementations should choose their |
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650 # own distribution name. Since servers should not be using the user |
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651 # agent string for anything, clients should be able to define whatever |
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652 # user agent they deem appropriate. |
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653 # |
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|
654 # The custom user agent is for lfs, because unfortunately some servers |
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|
655 # do look at this value. |
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656 if not useragent: |
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657 agent = b'mercurial/proto-1.0 (Mercurial %s)' % util.version() |
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|
658 opener.addheaders = [(r'User-agent', pycompat.sysstr(agent))] |
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659 else: |
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660 opener.addheaders = [(r'User-agent', pycompat.sysstr(useragent))] |
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661 |
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662 # This header should only be needed by wire protocol requests. But it has |
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663 # been sent on all requests since forever. We keep sending it for backwards |
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664 # compatibility reasons. Modern versions of the wire protocol use |
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665 # X-HgProto-<N> for advertising client support. |
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666 if sendaccept: |
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667 opener.addheaders.append((r'Accept', r'application/mercurial-0.1')) |
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668 |
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669 return opener |
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670 |
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671 |
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672 def open(ui, url_, data=None, sendaccept=True): |
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|
673 u = util.url(url_) |
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674 if u.scheme: |
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675 u.scheme = u.scheme.lower() |
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676 url_, authinfo = u.authinfo() |
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677 else: |
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678 path = util.normpath(os.path.abspath(url_)) |
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679 url_ = b'file://' + pycompat.bytesurl(urlreq.pathname2url(path)) |
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680 authinfo = None |
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681 return opener(ui, authinfo, sendaccept=sendaccept).open( |
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682 pycompat.strurl(url_), data |
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683 ) |
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684 |
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685 |
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686 def wrapresponse(resp): |
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687 """Wrap a response object with common error handlers. |
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688 |
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689 This ensures that any I/O from any consumer raises the appropriate |
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690 error and messaging. |
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691 """ |
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692 origread = resp.read |
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693 |
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694 class readerproxy(resp.__class__): |
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695 def read(self, size=None): |
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696 try: |
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697 return origread(size) |
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698 except httplib.IncompleteRead as e: |
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699 # e.expected is an integer if length known or None otherwise. |
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700 if e.expected: |
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701 got = len(e.partial) |
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702 total = e.expected + got |
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703 msg = _( |
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704 b'HTTP request error (incomplete response; ' |
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705 b'expected %d bytes got %d)' |
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706 ) % (total, got) |
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707 else: |
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708 msg = _(b'HTTP request error (incomplete response)') |
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709 |
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710 raise error.PeerTransportError( |
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711 msg, |
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712 hint=_( |
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713 b'this may be an intermittent network failure; ' |
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714 b'if the error persists, consider contacting the ' |
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715 b'network or server operator' |
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716 ), |
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717 ) |
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718 except httplib.HTTPException as e: |
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719 raise error.PeerTransportError( |
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720 _(b'HTTP request error (%s)') % e, |
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721 hint=_( |
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722 b'this may be an intermittent network failure; ' |
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723 b'if the error persists, consider contacting the ' |
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724 b'network or server operator' |
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725 ), |
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726 ) |
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727 |
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728 resp.__class__ = readerproxy |