Mercurial > hg
annotate mercurial/url.py @ 45438:ed95ccc94333
rhg: pass `ui` to `Command` `run`
Allow implementation of `From<clap::ArgMatches> for Command`
Differential Revision: https://phab.mercurial-scm.org/D8954
author | Antoine Cezar <antoine.cezar@octobus.net> |
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date | Tue, 04 Aug 2020 16:11:23 +0200 |
parents | a50f33f1ff24 |
children | ff48eea4a926 |
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 = {'http': proxyurl, '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 ['http://', 'https:/']: |
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208 tunnel_host = '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 = { |
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228 pycompat.bytestr(x): pycompat.bytestr(self.headers[x]) |
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229 for x in self.headers |
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230 if x.lower().startswith('proxy-') |
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231 } |
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232 self.send(b'CONNECT %s HTTP/1.0\r\n' % self.realhostport) |
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233 for header in pycompat.iteritems(proxyheaders): |
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234 self.send(b'%s: %s\r\n' % header) |
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235 self.send(b'\r\n') |
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236 |
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237 # majority of the following code is duplicated from |
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238 # httplib.HTTPConnection as there are no adequate places to |
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239 # override functions to provide the needed functionality |
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240 # strict was removed in Python 3.4. |
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241 kwargs = {} |
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242 if not pycompat.ispy3: |
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243 kwargs[b'strict'] = self.strict |
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244 |
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245 res = self.response_class(self.sock, method=self._method, **kwargs) |
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246 |
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247 while True: |
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248 version, status, reason = res._read_status() |
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249 if status != httplib.CONTINUE: |
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250 break |
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251 # skip lines that are all whitespace |
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252 list(iter(lambda: res.fp.readline().strip(), b'')) |
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253 res.status = status |
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254 res.reason = reason.strip() |
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255 |
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256 if res.status == 200: |
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257 # skip lines until we find a blank line |
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258 list(iter(res.fp.readline, b'\r\n')) |
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259 return True |
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260 |
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261 if version == b'HTTP/1.0': |
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262 res.version = 10 |
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263 elif version.startswith(b'HTTP/1.'): |
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264 res.version = 11 |
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265 elif version == b'HTTP/0.9': |
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266 res.version = 9 |
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267 else: |
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268 raise httplib.UnknownProtocol(version) |
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269 |
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270 if res.version == 9: |
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271 res.length = None |
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272 res.chunked = 0 |
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273 res.will_close = 1 |
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274 res.msg = httplib.HTTPMessage(stringio()) |
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275 return False |
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276 |
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277 res.msg = httplib.HTTPMessage(res.fp) |
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278 res.msg.fp = None |
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279 |
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280 # are we using the chunked-style of transfer encoding? |
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281 trenc = res.msg.getheader(b'transfer-encoding') |
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282 if trenc and trenc.lower() == b"chunked": |
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283 res.chunked = 1 |
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284 res.chunk_left = None |
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285 else: |
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286 res.chunked = 0 |
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287 |
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288 # will the connection close at the end of the response? |
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289 res.will_close = res._check_close() |
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290 |
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291 # do we have a Content-Length? |
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292 # NOTE: RFC 2616, section 4.4, #3 says we ignore this if |
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293 # transfer-encoding is "chunked" |
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294 length = res.msg.getheader(b'content-length') |
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295 if length and not res.chunked: |
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296 try: |
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297 res.length = int(length) |
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298 except ValueError: |
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299 res.length = None |
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300 else: |
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301 if res.length < 0: # ignore nonsensical negative lengths |
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302 res.length = None |
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303 else: |
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304 res.length = None |
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305 |
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306 # does the body have a fixed length? (of zero) |
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307 if ( |
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308 status == httplib.NO_CONTENT |
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309 or status == httplib.NOT_MODIFIED |
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310 or 100 <= status < 200 |
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311 or res._method == b'HEAD' # 1xx codes |
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312 ): |
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313 res.length = 0 |
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314 |
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315 # if the connection remains open, and we aren't using chunked, and |
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316 # a content-length was not provided, then assume that the connection |
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317 # WILL close. |
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318 if not res.will_close and not res.chunked and res.length is None: |
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319 res.will_close = 1 |
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320 |
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321 self.proxyres = res |
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322 |
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323 return False |
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324 |
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325 |
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326 class httphandler(keepalive.HTTPHandler): |
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327 def http_open(self, req): |
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328 return self.do_open(httpconnection, req) |
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329 |
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330 def _start_transaction(self, h, req): |
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331 _generic_start_transaction(self, h, req) |
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332 return keepalive.HTTPHandler._start_transaction(self, h, req) |
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333 |
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334 |
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335 class logginghttpconnection(keepalive.HTTPConnection): |
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336 def __init__(self, createconn, *args, **kwargs): |
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337 keepalive.HTTPConnection.__init__(self, *args, **kwargs) |
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338 self._create_connection = createconn |
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339 |
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340 if sys.version_info < (2, 7, 7): |
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341 # copied from 2.7.14, since old implementations directly call |
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342 # socket.create_connection() |
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343 def connect(self): |
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344 self.sock = self._create_connection( |
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345 (self.host, self.port), self.timeout, self.source_address |
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346 ) |
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347 if self._tunnel_host: |
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348 self._tunnel() |
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349 |
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350 |
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351 class logginghttphandler(httphandler): |
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352 """HTTP handler that logs socket I/O.""" |
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353 |
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354 def __init__(self, logfh, name, observeropts, timeout=None): |
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355 super(logginghttphandler, self).__init__(timeout=timeout) |
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356 |
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357 self._logfh = logfh |
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358 self._logname = name |
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359 self._observeropts = observeropts |
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360 |
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361 # do_open() calls the passed class to instantiate an HTTPConnection. We |
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362 # pass in a callable method that creates a custom HTTPConnection instance |
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363 # whose callback to create the socket knows how to proxy the socket. |
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364 def http_open(self, req): |
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365 return self.do_open(self._makeconnection, req) |
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366 |
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367 def _makeconnection(self, *args, **kwargs): |
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368 def createconnection(*args, **kwargs): |
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369 sock = socket.create_connection(*args, **kwargs) |
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370 return util.makeloggingsocket( |
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371 self._logfh, sock, self._logname, **self._observeropts |
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372 ) |
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373 |
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374 return logginghttpconnection(createconnection, *args, **kwargs) |
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375 |
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376 |
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377 if has_https: |
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378 |
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379 class httpsconnection(keepalive.HTTPConnection): |
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380 response_class = keepalive.HTTPResponse |
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381 default_port = httplib.HTTPS_PORT |
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382 # must be able to send big bundle as stream. |
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383 send = _gen_sendfile(keepalive.safesend) |
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384 getresponse = keepalive.wrapgetresponse(httplib.HTTPConnection) |
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385 |
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386 def __init__( |
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387 self, |
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388 host, |
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389 port=None, |
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390 key_file=None, |
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391 cert_file=None, |
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392 *args, |
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393 **kwargs |
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394 ): |
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395 keepalive.HTTPConnection.__init__(self, host, port, *args, **kwargs) |
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396 self.key_file = key_file |
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397 self.cert_file = cert_file |
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398 |
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399 def connect(self): |
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400 self.sock = socket.create_connection((self.host, self.port)) |
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401 |
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402 host = self.host |
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403 if self.realhostport: # use CONNECT proxy |
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404 _generic_proxytunnel(self) |
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405 host = self.realhostport.rsplit(b':', 1)[0] |
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406 self.sock = sslutil.wrapsocket( |
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407 self.sock, |
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408 self.key_file, |
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409 self.cert_file, |
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410 ui=self.ui, |
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411 serverhostname=host, |
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412 ) |
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413 sslutil.validatesocket(self.sock) |
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414 |
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415 class httpshandler(keepalive.KeepAliveHandler, urlreq.httpshandler): |
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416 def __init__(self, ui, timeout=None): |
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417 keepalive.KeepAliveHandler.__init__(self, timeout=timeout) |
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418 urlreq.httpshandler.__init__(self) |
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419 self.ui = ui |
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420 self.pwmgr = passwordmgr(self.ui, self.ui.httppasswordmgrdb) |
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421 |
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422 def _start_transaction(self, h, req): |
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423 _generic_start_transaction(self, h, req) |
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424 return keepalive.KeepAliveHandler._start_transaction(self, h, req) |
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425 |
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426 def https_open(self, req): |
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427 # urllibcompat.getfullurl() does not contain credentials |
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428 # and we may need them to match the certificates. |
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429 url = urllibcompat.getfullurl(req) |
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430 user, password = self.pwmgr.find_stored_password(url) |
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431 res = httpconnectionmod.readauthforuri(self.ui, url, user) |
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432 if res: |
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433 group, auth = res |
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434 self.auth = auth |
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435 self.ui.debug(b"using auth.%s.* for authentication\n" % group) |
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436 else: |
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437 self.auth = None |
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438 return self.do_open(self._makeconnection, req) |
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439 |
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440 def _makeconnection(self, host, port=None, *args, **kwargs): |
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441 keyfile = None |
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442 certfile = None |
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443 |
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444 if len(args) >= 1: # key_file |
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445 keyfile = args[0] |
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446 if len(args) >= 2: # cert_file |
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447 certfile = args[1] |
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448 args = args[2:] |
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449 |
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450 # if the user has specified different key/cert files in |
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451 # hgrc, we prefer these |
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452 if self.auth and b'key' in self.auth and b'cert' in self.auth: |
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453 keyfile = self.auth[b'key'] |
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454 certfile = self.auth[b'cert'] |
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455 |
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456 conn = httpsconnection( |
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457 host, port, keyfile, certfile, *args, **kwargs |
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458 ) |
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459 conn.ui = self.ui |
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460 return conn |
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461 |
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462 |
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463 class httpdigestauthhandler(urlreq.httpdigestauthhandler): |
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464 def __init__(self, *args, **kwargs): |
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465 urlreq.httpdigestauthhandler.__init__(self, *args, **kwargs) |
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466 self.retried_req = None |
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467 |
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468 def reset_retry_count(self): |
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469 # Python 2.6.5 will call this on 401 or 407 errors and thus loop |
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470 # forever. We disable reset_retry_count completely and reset in |
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471 # http_error_auth_reqed instead. |
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472 pass |
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473 |
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474 def http_error_auth_reqed(self, auth_header, host, req, headers): |
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475 # Reset the retry counter once for each request. |
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476 if req is not self.retried_req: |
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477 self.retried_req = req |
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478 self.retried = 0 |
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479 return urlreq.httpdigestauthhandler.http_error_auth_reqed( |
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480 self, auth_header, host, req, headers |
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481 ) |
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482 |
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483 |
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484 class httpbasicauthhandler(urlreq.httpbasicauthhandler): |
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485 def __init__(self, *args, **kwargs): |
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486 self.auth = None |
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487 urlreq.httpbasicauthhandler.__init__(self, *args, **kwargs) |
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488 self.retried_req = None |
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489 |
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490 def http_request(self, request): |
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491 if self.auth: |
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492 request.add_unredirected_header(self.auth_header, self.auth) |
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493 |
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494 return request |
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495 |
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496 def https_request(self, request): |
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497 if self.auth: |
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498 request.add_unredirected_header(self.auth_header, self.auth) |
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499 |
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500 return request |
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501 |
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502 def reset_retry_count(self): |
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503 # Python 2.6.5 will call this on 401 or 407 errors and thus loop |
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504 # forever. We disable reset_retry_count completely and reset in |
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505 # http_error_auth_reqed instead. |
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506 pass |
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507 |
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508 def http_error_auth_reqed(self, auth_header, host, req, headers): |
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509 # Reset the retry counter once for each request. |
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510 if req is not self.retried_req: |
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511 self.retried_req = req |
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512 self.retried = 0 |
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513 return urlreq.httpbasicauthhandler.http_error_auth_reqed( |
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514 self, auth_header, host, req, headers |
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515 ) |
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516 |
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517 def retry_http_basic_auth(self, host, req, realm): |
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518 user, pw = self.passwd.find_user_password( |
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519 realm, urllibcompat.getfullurl(req) |
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520 ) |
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521 if pw is not None: |
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522 raw = b"%s:%s" % (pycompat.bytesurl(user), pycompat.bytesurl(pw)) |
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523 auth = 'Basic %s' % pycompat.strurl(base64.b64encode(raw).strip()) |
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524 if req.get_header(self.auth_header, None) == auth: |
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525 return None |
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526 self.auth = auth |
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527 req.add_unredirected_header(self.auth_header, auth) |
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528 return self.parent.open(req) |
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529 else: |
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530 return None |
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531 |
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532 |
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533 class cookiehandler(urlreq.basehandler): |
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534 def __init__(self, ui): |
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535 self.cookiejar = None |
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536 |
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537 cookiefile = ui.config(b'auth', b'cookiefile') |
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538 if not cookiefile: |
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539 return |
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540 |
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541 cookiefile = util.expandpath(cookiefile) |
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542 try: |
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543 cookiejar = util.cookielib.MozillaCookieJar( |
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544 pycompat.fsdecode(cookiefile) |
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545 ) |
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546 cookiejar.load() |
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547 self.cookiejar = cookiejar |
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548 except util.cookielib.LoadError as e: |
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549 ui.warn( |
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550 _( |
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551 b'(error loading cookie file %s: %s; continuing without ' |
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552 b'cookies)\n' |
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553 ) |
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554 % (cookiefile, stringutil.forcebytestr(e)) |
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555 ) |
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556 |
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557 def http_request(self, request): |
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558 if self.cookiejar: |
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559 self.cookiejar.add_cookie_header(request) |
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560 |
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561 return request |
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562 |
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563 def https_request(self, request): |
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564 if self.cookiejar: |
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565 self.cookiejar.add_cookie_header(request) |
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566 |
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567 return request |
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568 |
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569 |
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570 handlerfuncs = [] |
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571 |
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572 |
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573 def opener( |
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574 ui, |
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575 authinfo=None, |
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576 useragent=None, |
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577 loggingfh=None, |
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578 loggingname=b's', |
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579 loggingopts=None, |
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580 sendaccept=True, |
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581 ): |
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582 ''' |
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583 construct an opener suitable for urllib2 |
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584 authinfo will be added to the password manager |
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585 |
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586 The opener can be configured to log socket events if the various |
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587 ``logging*`` arguments are specified. |
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588 |
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589 ``loggingfh`` denotes a file object to log events to. |
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590 ``loggingname`` denotes the name of the to print when logging. |
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591 ``loggingopts`` is a dict of keyword arguments to pass to the constructed |
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592 ``util.socketobserver`` instance. |
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593 |
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594 ``sendaccept`` allows controlling whether the ``Accept`` request header |
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595 is sent. The header is sent by default. |
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596 ''' |
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597 timeout = ui.configwith(float, b'http', b'timeout') |
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598 handlers = [] |
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599 |
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600 if loggingfh: |
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601 handlers.append( |
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602 logginghttphandler( |
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603 loggingfh, loggingname, loggingopts or {}, timeout=timeout |
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604 ) |
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605 ) |
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606 # We don't yet support HTTPS when logging I/O. If we attempt to open |
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607 # an HTTPS URL, we'll likely fail due to unknown protocol. |
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608 |
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609 else: |
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610 handlers.append(httphandler(timeout=timeout)) |
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611 if has_https: |
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612 handlers.append(httpshandler(ui, timeout=timeout)) |
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613 |
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614 handlers.append(proxyhandler(ui)) |
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615 |
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616 passmgr = passwordmgr(ui, ui.httppasswordmgrdb) |
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617 if authinfo is not None: |
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618 realm, uris, user, passwd = authinfo |
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619 saveduser, savedpass = passmgr.find_stored_password(uris[0]) |
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620 if user != saveduser or passwd: |
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621 passmgr.add_password(realm, uris, user, passwd) |
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622 ui.debug( |
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623 b'http auth: user %s, password %s\n' |
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624 % (user, passwd and b'*' * len(passwd) or b'not set') |
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625 ) |
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626 |
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627 handlers.extend( |
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628 (httpbasicauthhandler(passmgr), httpdigestauthhandler(passmgr)) |
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629 ) |
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630 handlers.extend([h(ui, passmgr) for h in handlerfuncs]) |
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631 handlers.append(cookiehandler(ui)) |
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632 opener = urlreq.buildopener(*handlers) |
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633 |
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634 # keepalive.py's handlers will populate these attributes if they exist. |
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635 opener.requestscount = 0 |
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636 opener.sentbytescount = 0 |
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637 opener.receivedbytescount = 0 |
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638 |
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639 # The user agent should should *NOT* be used by servers for e.g. |
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640 # protocol detection or feature negotiation: there are other |
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641 # facilities for that. |
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642 # |
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643 # "mercurial/proto-1.0" was the original user agent string and |
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644 # exists for backwards compatibility reasons. |
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645 # |
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646 # The "(Mercurial %s)" string contains the distribution |
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647 # name and version. Other client implementations should choose their |
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648 # own distribution name. Since servers should not be using the user |
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649 # agent string for anything, clients should be able to define whatever |
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650 # user agent they deem appropriate. |
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651 # |
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652 # The custom user agent is for lfs, because unfortunately some servers |
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653 # do look at this value. |
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654 if not useragent: |
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655 agent = b'mercurial/proto-1.0 (Mercurial %s)' % util.version() |
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656 opener.addheaders = [('User-agent', pycompat.sysstr(agent))] |
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657 else: |
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658 opener.addheaders = [('User-agent', pycompat.sysstr(useragent))] |
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659 |
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660 # This header should only be needed by wire protocol requests. But it has |
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661 # been sent on all requests since forever. We keep sending it for backwards |
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662 # compatibility reasons. Modern versions of the wire protocol use |
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663 # X-HgProto-<N> for advertising client support. |
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664 if sendaccept: |
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665 opener.addheaders.append(('Accept', 'application/mercurial-0.1')) |
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666 |
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667 return opener |
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668 |
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669 |
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670 def open(ui, url_, data=None, sendaccept=True): |
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671 u = util.url(url_) |
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672 if u.scheme: |
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673 u.scheme = u.scheme.lower() |
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674 url_, authinfo = u.authinfo() |
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675 else: |
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676 path = util.normpath(os.path.abspath(url_)) |
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677 url_ = b'file://' + pycompat.bytesurl( |
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678 urlreq.pathname2url(pycompat.fsdecode(path)) |
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679 ) |
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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 |