Mercurial > hg
annotate mercurial/keepalive.py @ 35960:580f7b1b88c7
hgsh: enable clang-format
Nothing looks awful, so we can just turn it on.
Differential Revision: https://phab.mercurial-scm.org/D2059
author | Augie Fackler <augie@google.com> |
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date | Tue, 06 Feb 2018 05:25:36 -0500 |
parents | 72b91f905065 |
children | 19a04ca90413 |
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1 # This library is free software; you can redistribute it and/or |
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2 # modify it under the terms of the GNU Lesser General Public |
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3 # License as published by the Free Software Foundation; either |
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4 # version 2.1 of the License, or (at your option) any later version. |
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5 # |
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6 # This library is distributed in the hope that it will be useful, |
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7 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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9 # Lesser General Public License for more details. |
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10 # |
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11 # You should have received a copy of the GNU Lesser General Public |
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12 # License along with this library; if not, see |
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13 # <http://www.gnu.org/licenses/>. |
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14 |
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15 # This file is part of urlgrabber, a high-level cross-protocol url-grabber |
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16 # Copyright 2002-2004 Michael D. Stenner, Ryan Tomayko |
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17 |
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18 # Modified by Benoit Boissinot: |
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19 # - fix for digest auth (inspired from urllib2.py @ Python v2.4) |
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20 # Modified by Dirkjan Ochtman: |
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21 # - import md5 function from a local util module |
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22 # Modified by Augie Fackler: |
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23 # - add safesend method and use it to prevent broken pipe errors |
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24 # on large POST requests |
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25 |
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26 """An HTTP handler for urllib2 that supports HTTP 1.1 and keepalive. |
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27 |
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28 >>> import urllib2 |
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29 >>> from keepalive import HTTPHandler |
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30 >>> keepalive_handler = HTTPHandler() |
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31 >>> opener = urlreq.buildopener(keepalive_handler) |
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32 >>> urlreq.installopener(opener) |
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33 >>> |
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34 >>> fo = urlreq.urlopen('http://www.python.org') |
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35 |
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36 If a connection to a given host is requested, and all of the existing |
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37 connections are still in use, another connection will be opened. If |
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38 the handler tries to use an existing connection but it fails in some |
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39 way, it will be closed and removed from the pool. |
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40 |
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41 To remove the handler, simply re-run build_opener with no arguments, and |
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42 install that opener. |
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43 |
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44 You can explicitly close connections by using the close_connection() |
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45 method of the returned file-like object (described below) or you can |
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46 use the handler methods: |
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47 |
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48 close_connection(host) |
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49 close_all() |
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50 open_connections() |
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51 |
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52 NOTE: using the close_connection and close_all methods of the handler |
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53 should be done with care when using multiple threads. |
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54 * there is nothing that prevents another thread from creating new |
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55 connections immediately after connections are closed |
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56 * no checks are done to prevent in-use connections from being closed |
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57 |
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58 >>> keepalive_handler.close_all() |
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59 |
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60 EXTRA ATTRIBUTES AND METHODS |
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61 |
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62 Upon a status of 200, the object returned has a few additional |
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63 attributes and methods, which should not be used if you want to |
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64 remain consistent with the normal urllib2-returned objects: |
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65 |
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66 close_connection() - close the connection to the host |
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67 readlines() - you know, readlines() |
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68 status - the return status (i.e. 404) |
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69 reason - english translation of status (i.e. 'File not found') |
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70 |
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71 If you want the best of both worlds, use this inside an |
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72 AttributeError-catching try: |
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73 |
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74 >>> try: status = fo.status |
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75 >>> except AttributeError: status = None |
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76 |
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77 Unfortunately, these are ONLY there if status == 200, so it's not |
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78 easy to distinguish between non-200 responses. The reason is that |
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79 urllib2 tries to do clever things with error codes 301, 302, 401, |
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80 and 407, and it wraps the object upon return. |
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81 """ |
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82 |
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83 # $Id: keepalive.py,v 1.14 2006/04/04 21:00:32 mstenner Exp $ |
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84 |
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85 from __future__ import absolute_import, print_function |
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86 |
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87 import errno |
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88 import hashlib |
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89 import socket |
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90 import sys |
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91 import threading |
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92 |
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93 from .i18n import _ |
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94 from . import ( |
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95 node, |
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96 pycompat, |
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97 urllibcompat, |
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98 util, |
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99 ) |
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100 |
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101 httplib = util.httplib |
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102 urlerr = util.urlerr |
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103 urlreq = util.urlreq |
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104 |
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105 DEBUG = None |
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106 |
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107 class ConnectionManager(object): |
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108 """ |
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109 The connection manager must be able to: |
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110 * keep track of all existing |
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111 """ |
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112 def __init__(self): |
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113 self._lock = threading.Lock() |
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114 self._hostmap = {} # map hosts to a list of connections |
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115 self._connmap = {} # map connections to host |
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116 self._readymap = {} # map connection to ready state |
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117 |
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118 def add(self, host, connection, ready): |
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119 self._lock.acquire() |
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120 try: |
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121 if host not in self._hostmap: |
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122 self._hostmap[host] = [] |
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123 self._hostmap[host].append(connection) |
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124 self._connmap[connection] = host |
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125 self._readymap[connection] = ready |
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126 finally: |
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127 self._lock.release() |
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128 |
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129 def remove(self, connection): |
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130 self._lock.acquire() |
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131 try: |
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132 try: |
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133 host = self._connmap[connection] |
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134 except KeyError: |
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135 pass |
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136 else: |
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137 del self._connmap[connection] |
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138 del self._readymap[connection] |
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139 self._hostmap[host].remove(connection) |
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140 if not self._hostmap[host]: |
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141 del self._hostmap[host] |
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142 finally: |
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143 self._lock.release() |
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144 |
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145 def set_ready(self, connection, ready): |
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146 try: |
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147 self._readymap[connection] = ready |
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148 except KeyError: |
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149 pass |
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150 |
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151 def get_ready_conn(self, host): |
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152 conn = None |
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153 self._lock.acquire() |
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154 try: |
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155 if host in self._hostmap: |
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156 for c in self._hostmap[host]: |
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157 if self._readymap[c]: |
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158 self._readymap[c] = 0 |
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159 conn = c |
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160 break |
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161 finally: |
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162 self._lock.release() |
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163 return conn |
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164 |
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165 def get_all(self, host=None): |
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166 if host: |
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167 return list(self._hostmap.get(host, [])) |
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168 else: |
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169 return dict(self._hostmap) |
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170 |
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171 class KeepAliveHandler(object): |
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172 def __init__(self): |
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173 self._cm = ConnectionManager() |
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174 |
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175 #### Connection Management |
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176 def open_connections(self): |
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177 """return a list of connected hosts and the number of connections |
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178 to each. [('foo.com:80', 2), ('bar.org', 1)]""" |
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179 return [(host, len(li)) for (host, li) in self._cm.get_all().items()] |
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180 |
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181 def close_connection(self, host): |
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182 """close connection(s) to <host> |
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183 host is the host:port spec, as in 'www.cnn.com:8080' as passed in. |
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184 no error occurs if there is no connection to that host.""" |
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185 for h in self._cm.get_all(host): |
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186 self._cm.remove(h) |
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187 h.close() |
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188 |
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189 def close_all(self): |
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190 """close all open connections""" |
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191 for host, conns in self._cm.get_all().iteritems(): |
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192 for h in conns: |
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193 self._cm.remove(h) |
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194 h.close() |
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195 |
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196 def _request_closed(self, request, host, connection): |
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197 """tells us that this request is now closed and that the |
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198 connection is ready for another request""" |
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199 self._cm.set_ready(connection, 1) |
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200 |
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201 def _remove_connection(self, host, connection, close=0): |
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202 if close: |
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203 connection.close() |
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204 self._cm.remove(connection) |
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205 |
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206 #### Transaction Execution |
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207 def http_open(self, req): |
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208 return self.do_open(HTTPConnection, req) |
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209 |
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210 def do_open(self, http_class, req): |
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211 host = urllibcompat.gethost(req) |
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212 if not host: |
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213 raise urlerr.urlerror('no host given') |
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214 |
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215 try: |
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216 h = self._cm.get_ready_conn(host) |
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217 while h: |
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218 r = self._reuse_connection(h, req, host) |
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219 |
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220 # if this response is non-None, then it worked and we're |
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221 # done. Break out, skipping the else block. |
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222 if r: |
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223 break |
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224 |
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225 # connection is bad - possibly closed by server |
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226 # discard it and ask for the next free connection |
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227 h.close() |
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228 self._cm.remove(h) |
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229 h = self._cm.get_ready_conn(host) |
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230 else: |
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231 # no (working) free connections were found. Create a new one. |
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232 h = http_class(host) |
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233 if DEBUG: |
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234 DEBUG.info("creating new connection to %s (%d)", |
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235 host, id(h)) |
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236 self._cm.add(host, h, 0) |
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237 self._start_transaction(h, req) |
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238 r = h.getresponse() |
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239 # The string form of BadStatusLine is the status line. Add some context |
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240 # to make the error message slightly more useful. |
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241 except httplib.BadStatusLine as err: |
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242 raise urlerr.urlerror( |
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243 _('bad HTTP status line: %s') % pycompat.sysbytes(err.line)) |
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244 except (socket.error, httplib.HTTPException) as err: |
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245 raise urlerr.urlerror(err) |
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246 |
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247 # if not a persistent connection, don't try to reuse it |
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248 if r.will_close: |
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249 self._cm.remove(h) |
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250 |
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251 if DEBUG: |
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252 DEBUG.info("STATUS: %s, %s", r.status, r.reason) |
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253 r._handler = self |
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254 r._host = host |
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255 r._url = req.get_full_url() |
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256 r._connection = h |
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257 r.code = r.status |
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258 r.headers = r.msg |
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259 r.msg = r.reason |
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260 |
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261 return r |
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262 |
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263 def _reuse_connection(self, h, req, host): |
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264 """start the transaction with a re-used connection |
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265 return a response object (r) upon success or None on failure. |
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266 This DOES not close or remove bad connections in cases where |
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267 it returns. However, if an unexpected exception occurs, it |
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268 will close and remove the connection before re-raising. |
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269 """ |
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270 try: |
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271 self._start_transaction(h, req) |
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272 r = h.getresponse() |
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273 # note: just because we got something back doesn't mean it |
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274 # worked. We'll check the version below, too. |
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275 except (socket.error, httplib.HTTPException): |
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276 r = None |
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277 except: # re-raises |
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278 # adding this block just in case we've missed |
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279 # something we will still raise the exception, but |
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280 # lets try and close the connection and remove it |
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281 # first. We previously got into a nasty loop |
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282 # where an exception was uncaught, and so the |
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283 # connection stayed open. On the next try, the |
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284 # same exception was raised, etc. The trade-off is |
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285 # that it's now possible this call will raise |
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286 # a DIFFERENT exception |
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287 if DEBUG: |
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288 DEBUG.error("unexpected exception - closing " |
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289 "connection to %s (%d)", host, id(h)) |
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290 self._cm.remove(h) |
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291 h.close() |
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292 raise |
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293 |
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294 if r is None or r.version == 9: |
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295 # httplib falls back to assuming HTTP 0.9 if it gets a |
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296 # bad header back. This is most likely to happen if |
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297 # the socket has been closed by the server since we |
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298 # last used the connection. |
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299 if DEBUG: |
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300 DEBUG.info("failed to re-use connection to %s (%d)", |
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301 host, id(h)) |
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302 r = None |
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303 else: |
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304 if DEBUG: |
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305 DEBUG.info("re-using connection to %s (%d)", host, id(h)) |
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306 |
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307 return r |
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308 |
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309 def _start_transaction(self, h, req): |
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310 # What follows mostly reimplements HTTPConnection.request() |
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311 # except it adds self.parent.addheaders in the mix and sends headers |
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312 # in a deterministic order (to make testing easier). |
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313 headers = util.sortdict(self.parent.addheaders) |
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314 headers.update(sorted(req.headers.items())) |
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315 headers.update(sorted(req.unredirected_hdrs.items())) |
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316 headers = util.sortdict((n.lower(), v) for n, v in headers.items()) |
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317 skipheaders = {} |
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318 for n in ('host', 'accept-encoding'): |
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319 if n in headers: |
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320 skipheaders['skip_' + n.replace('-', '_')] = 1 |
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321 try: |
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322 if urllibcompat.hasdata(req): |
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323 data = urllibcompat.getdata(req) |
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324 h.putrequest( |
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325 req.get_method(), urllibcompat.getselector(req), |
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326 **pycompat.strkwargs(skipheaders)) |
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327 if 'content-type' not in headers: |
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328 h.putheader('Content-type', |
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329 'application/x-www-form-urlencoded') |
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330 if 'content-length' not in headers: |
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331 h.putheader('Content-length', '%d' % len(data)) |
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332 else: |
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333 h.putrequest( |
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334 req.get_method(), urllibcompat.getselector(req), |
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335 **pycompat.strkwargs(skipheaders)) |
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336 except socket.error as err: |
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337 raise urlerr.urlerror(err) |
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338 for k, v in headers.items(): |
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339 h.putheader(k, v) |
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340 h.endheaders() |
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341 if urllibcompat.hasdata(req): |
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342 h.send(data) |
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343 |
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344 class HTTPHandler(KeepAliveHandler, urlreq.httphandler): |
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345 pass |
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346 |
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347 class HTTPResponse(httplib.HTTPResponse): |
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348 # we need to subclass HTTPResponse in order to |
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349 # 1) add readline() and readlines() methods |
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350 # 2) add close_connection() methods |
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351 # 3) add info() and geturl() methods |
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352 |
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353 # in order to add readline(), read must be modified to deal with a |
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354 # buffer. example: readline must read a buffer and then spit back |
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355 # one line at a time. The only real alternative is to read one |
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356 # BYTE at a time (ick). Once something has been read, it can't be |
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357 # put back (ok, maybe it can, but that's even uglier than this), |
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358 # so if you THEN do a normal read, you must first take stuff from |
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359 # the buffer. |
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360 |
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361 # the read method wraps the original to accommodate buffering, |
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362 # although read() never adds to the buffer. |
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363 # Both readline and readlines have been stolen with almost no |
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364 # modification from socket.py |
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365 |
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366 |
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367 def __init__(self, sock, debuglevel=0, strict=0, method=None): |
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368 extrakw = {} |
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369 if not pycompat.ispy3: |
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370 extrakw[r'strict'] = True |
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371 extrakw[r'buffering'] = True |
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372 httplib.HTTPResponse.__init__(self, sock, debuglevel=debuglevel, |
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373 method=method, **extrakw) |
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374 self.fileno = sock.fileno |
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375 self.code = None |
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376 self._rbuf = '' |
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377 self._rbufsize = 8096 |
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378 self._handler = None # inserted by the handler later |
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379 self._host = None # (same) |
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380 self._url = None # (same) |
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381 self._connection = None # (same) |
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382 |
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383 _raw_read = httplib.HTTPResponse.read |
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384 |
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385 def close(self): |
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386 if self.fp: |
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387 self.fp.close() |
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388 self.fp = None |
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389 if self._handler: |
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390 self._handler._request_closed(self, self._host, |
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391 self._connection) |
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392 |
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393 def close_connection(self): |
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394 self._handler._remove_connection(self._host, self._connection, close=1) |
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395 self.close() |
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396 |
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397 def info(self): |
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398 return self.headers |
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399 |
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400 def geturl(self): |
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401 return self._url |
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402 |
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403 def read(self, amt=None): |
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404 # the _rbuf test is only in this first if for speed. It's not |
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405 # logically necessary |
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406 if self._rbuf and amt is not None: |
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407 L = len(self._rbuf) |
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408 if amt > L: |
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409 amt -= L |
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410 else: |
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411 s = self._rbuf[:amt] |
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412 self._rbuf = self._rbuf[amt:] |
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413 return s |
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414 |
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415 s = self._rbuf + self._raw_read(amt) |
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416 self._rbuf = '' |
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417 return s |
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418 |
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419 # stolen from Python SVN #68532 to fix issue1088 |
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420 def _read_chunked(self, amt): |
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421 chunk_left = self.chunk_left |
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422 parts = [] |
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423 |
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424 while True: |
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425 if chunk_left is None: |
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426 line = self.fp.readline() |
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427 i = line.find(';') |
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428 if i >= 0: |
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429 line = line[:i] # strip chunk-extensions |
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430 try: |
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431 chunk_left = int(line, 16) |
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432 except ValueError: |
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433 # close the connection as protocol synchronization is |
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434 # probably lost |
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435 self.close() |
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436 raise httplib.IncompleteRead(''.join(parts)) |
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437 if chunk_left == 0: |
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438 break |
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439 if amt is None: |
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440 parts.append(self._safe_read(chunk_left)) |
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441 elif amt < chunk_left: |
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442 parts.append(self._safe_read(amt)) |
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443 self.chunk_left = chunk_left - amt |
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444 return ''.join(parts) |
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445 elif amt == chunk_left: |
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446 parts.append(self._safe_read(amt)) |
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447 self._safe_read(2) # toss the CRLF at the end of the chunk |
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448 self.chunk_left = None |
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449 return ''.join(parts) |
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450 else: |
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451 parts.append(self._safe_read(chunk_left)) |
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452 amt -= chunk_left |
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453 |
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454 # we read the whole chunk, get another |
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455 self._safe_read(2) # toss the CRLF at the end of the chunk |
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456 chunk_left = None |
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457 |
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458 # read and discard trailer up to the CRLF terminator |
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459 ### note: we shouldn't have any trailers! |
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460 while True: |
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461 line = self.fp.readline() |
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462 if not line: |
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463 # a vanishingly small number of sites EOF without |
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464 # sending the trailer |
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465 break |
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466 if line == '\r\n': |
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467 break |
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468 |
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469 # we read everything; close the "file" |
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470 self.close() |
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471 |
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472 return ''.join(parts) |
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473 |
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474 def readline(self): |
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475 # Fast path for a line is already available in read buffer. |
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476 i = self._rbuf.find('\n') |
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477 if i >= 0: |
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478 i += 1 |
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479 line = self._rbuf[:i] |
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480 self._rbuf = self._rbuf[i:] |
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481 return line |
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482 |
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483 # No newline in local buffer. Read until we find one. |
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484 chunks = [self._rbuf] |
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485 i = -1 |
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486 readsize = self._rbufsize |
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487 while True: |
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488 new = self._raw_read(readsize) |
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489 if not new: |
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490 break |
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491 |
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492 chunks.append(new) |
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493 i = new.find('\n') |
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494 if i >= 0: |
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495 break |
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496 |
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497 # We either have exhausted the stream or have a newline in chunks[-1]. |
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498 |
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499 # EOF |
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500 if i == -1: |
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501 self._rbuf = '' |
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502 return ''.join(chunks) |
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503 |
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504 i += 1 |
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505 self._rbuf = chunks[-1][i:] |
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506 chunks[-1] = chunks[-1][:i] |
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507 return ''.join(chunks) |
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508 |
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509 def readlines(self, sizehint=0): |
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510 total = 0 |
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511 list = [] |
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512 while True: |
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513 line = self.readline() |
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514 if not line: |
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515 break |
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516 list.append(line) |
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517 total += len(line) |
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518 if sizehint and total >= sizehint: |
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519 break |
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520 return list |
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521 |
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522 def safesend(self, str): |
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523 """Send `str' to the server. |
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524 |
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525 Shamelessly ripped off from httplib to patch a bad behavior. |
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526 """ |
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527 # _broken_pipe_resp is an attribute we set in this function |
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528 # if the socket is closed while we're sending data but |
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529 # the server sent us a response before hanging up. |
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530 # In that case, we want to pretend to send the rest of the |
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531 # outgoing data, and then let the user use getresponse() |
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532 # (which we wrap) to get this last response before |
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533 # opening a new socket. |
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534 if getattr(self, '_broken_pipe_resp', None) is not None: |
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535 return |
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536 |
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537 if self.sock is None: |
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538 if self.auto_open: |
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539 self.connect() |
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540 else: |
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541 raise httplib.NotConnected |
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542 |
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543 # send the data to the server. if we get a broken pipe, then close |
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544 # the socket. we want to reconnect when somebody tries to send again. |
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545 # |
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546 # NOTE: we DO propagate the error, though, because we cannot simply |
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547 # ignore the error... the caller will know if they can retry. |
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548 if self.debuglevel > 0: |
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549 print("send:", repr(str)) |
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550 try: |
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551 blocksize = 8192 |
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552 read = getattr(str, 'read', None) |
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553 if read is not None: |
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554 if self.debuglevel > 0: |
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555 print("sending a read()able") |
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556 data = read(blocksize) |
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557 while data: |
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558 self.sock.sendall(data) |
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559 data = read(blocksize) |
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560 else: |
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561 self.sock.sendall(str) |
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562 except socket.error as v: |
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563 reraise = True |
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564 if v[0] == errno.EPIPE: # Broken pipe |
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565 if self._HTTPConnection__state == httplib._CS_REQ_SENT: |
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566 self._broken_pipe_resp = None |
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567 self._broken_pipe_resp = self.getresponse() |
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568 reraise = False |
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569 self.close() |
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570 if reraise: |
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571 raise |
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|
572 |
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573 def wrapgetresponse(cls): |
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574 """Wraps getresponse in cls with a broken-pipe sane version. |
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575 """ |
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576 def safegetresponse(self): |
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577 # In safesend() we might set the _broken_pipe_resp |
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578 # attribute, in which case the socket has already |
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579 # been closed and we just need to give them the response |
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580 # back. Otherwise, we use the normal response path. |
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581 r = getattr(self, '_broken_pipe_resp', None) |
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582 if r is not None: |
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583 return r |
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584 return cls.getresponse(self) |
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585 safegetresponse.__doc__ = cls.getresponse.__doc__ |
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586 return safegetresponse |
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587 |
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588 class HTTPConnection(httplib.HTTPConnection): |
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589 # use the modified response class |
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590 response_class = HTTPResponse |
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591 send = safesend |
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592 getresponse = wrapgetresponse(httplib.HTTPConnection) |
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593 |
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c4325f0a9b91
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|
594 |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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595 ######################################################################### |
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http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
596 ##### TEST FUNCTIONS |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
597 ######################################################################### |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
598 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
599 |
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diff
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|
600 def continuity(url): |
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Augie Fackler <raf@durin42.com>
parents:
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diff
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|
601 md5 = hashlib.md5 |
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parents:
diff
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602 format = '%25s: %s' |
2600
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clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
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|
603 |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
604 # first fetch the file with the normal http handler |
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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|
605 opener = urlreq.buildopener() |
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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diff
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|
606 urlreq.installopener(opener) |
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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diff
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|
607 fo = urlreq.urlopen(url) |
2435
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parents:
diff
changeset
|
608 foo = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
609 fo.close() |
22505
232d437af120
keepalive: fix how md5 is used
Mike Hommey <mh@glandium.org>
parents:
19872
diff
changeset
|
610 m = md5(foo) |
35582
72b91f905065
py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents:
35364
diff
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|
611 print(format % ('normal urllib', node.hex(m.digest()))) |
2435
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
612 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
613 # now install the keepalive handler and try again |
28883
032c4c2f802a
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timeless <timeless@mozdev.org>
parents:
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diff
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|
614 opener = urlreq.buildopener(HTTPHandler()) |
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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changeset
|
615 urlreq.installopener(opener) |
2435
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parents:
diff
changeset
|
616 |
28883
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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changeset
|
617 fo = urlreq.urlopen(url) |
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parents:
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|
618 foo = fo.read() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
619 fo.close() |
22505
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Mike Hommey <mh@glandium.org>
parents:
19872
diff
changeset
|
620 m = md5(foo) |
35582
72b91f905065
py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents:
35364
diff
changeset
|
621 print(format % ('keepalive read', node.hex(m.digest()))) |
2435
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
622 |
28883
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timeless <timeless@mozdev.org>
parents:
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|
623 fo = urlreq.urlopen(url) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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|
624 foo = '' |
14494
1ffeeb91c55d
check-code: flag 0/1 used as constant Boolean expression
Martin Geisler <mg@lazybytes.net>
parents:
10394
diff
changeset
|
625 while True: |
2435
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parents:
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626 f = fo.readline() |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
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|
627 if f: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
628 foo = foo + f |
34435
5326e4ef1dab
style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents:
34427
diff
changeset
|
629 else: |
5326e4ef1dab
style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents:
34427
diff
changeset
|
630 break |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
631 fo.close() |
22505
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Mike Hommey <mh@glandium.org>
parents:
19872
diff
changeset
|
632 m = md5(foo) |
35582
72b91f905065
py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents:
35364
diff
changeset
|
633 print(format % ('keepalive readline', node.hex(m.digest()))) |
2435
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parents:
diff
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|
634 |
ff2bac730b99
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parents:
diff
changeset
|
635 def comp(N, url): |
27616
0765d8423fbc
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
636 print(' making %i connections to:\n %s' % (N, url)) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
637 |
30473
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py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents:
30463
diff
changeset
|
638 util.stdout.write(' first using the normal urllib handlers') |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
639 # first use normal opener |
28883
032c4c2f802a
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timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
640 opener = urlreq.buildopener() |
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
641 urlreq.installopener(opener) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
642 t1 = fetch(N, url) |
27616
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keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
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changeset
|
643 print(' TIME: %.3f s' % t1) |
2435
ff2bac730b99
http client: support persistent connections.
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parents:
diff
changeset
|
644 |
30473
39d13b8c101d
py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents:
30463
diff
changeset
|
645 util.stdout.write(' now using the keepalive handler ') |
2435
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http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
646 # now install the keepalive handler and try again |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
647 opener = urlreq.buildopener(HTTPHandler()) |
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
648 urlreq.installopener(opener) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
649 t2 = fetch(N, url) |
27616
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keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
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|
650 print(' TIME: %.3f s' % t2) |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
651 print(' improvement factor: %.2f' % (t1 / t2)) |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
652 |
2435
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parents:
diff
changeset
|
653 def fetch(N, url, delay=0): |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
654 import time |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
655 lens = [] |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
656 starttime = time.time() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
657 for i in range(N): |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
658 if delay and i > 0: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
659 time.sleep(delay) |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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changeset
|
660 fo = urlreq.urlopen(url) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
661 foo = fo.read() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
662 fo.close() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
663 lens.append(len(foo)) |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
664 diff = time.time() - starttime |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
665 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
666 j = 0 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
667 for i in lens[1:]: |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
668 j = j + 1 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
669 if not i == lens[0]: |
27616
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keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
670 print("WARNING: inconsistent length on read %i: %i" % (j, i)) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
671 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
672 return diff |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
673 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
674 def test_timeout(url): |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
675 global DEBUG |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
676 dbbackup = DEBUG |
14764
a7d5816087a9
classes: fix class style problems found by b071cd58af50
Thomas Arendsen Hein <thomas@intevation.de>
parents:
14494
diff
changeset
|
677 class FakeLogger(object): |
10282
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many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
diff
changeset
|
678 def debug(self, msg, *args): |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
679 print(msg % args) |
2435
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parents:
diff
changeset
|
680 info = warning = error = debug |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
681 DEBUG = FakeLogger() |
27616
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parents:
27507
diff
changeset
|
682 print(" fetching the file to establish a connection") |
28883
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timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
683 fo = urlreq.urlopen(url) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
684 data1 = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
685 fo.close() |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
686 |
2435
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
687 i = 20 |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
688 print(" waiting %i seconds for the server to close the connection" % i) |
2435
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
689 while i > 0: |
30473
39d13b8c101d
py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents:
30463
diff
changeset
|
690 util.stdout.write('\r %2i' % i) |
39d13b8c101d
py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
691 util.stdout.flush() |
2435
ff2bac730b99
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diff
changeset
|
692 time.sleep(1) |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
693 i -= 1 |
30473
39d13b8c101d
py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents:
30463
diff
changeset
|
694 util.stderr.write('\r') |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
695 |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
696 print(" fetching the file a second time") |
28883
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
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28278
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changeset
|
697 fo = urlreq.urlopen(url) |
2435
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parents:
diff
changeset
|
698 data2 = fo.read() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
699 fo.close() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
700 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
701 if data1 == data2: |
27616
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parents:
27507
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changeset
|
702 print(' data are identical') |
2435
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diff
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|
703 else: |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
704 print(' ERROR: DATA DIFFER') |
2435
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parents:
diff
changeset
|
705 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
706 DEBUG = dbbackup |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
707 |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
708 |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
709 def test(url, N=10): |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
710 print("performing continuity test (making sure stuff isn't corrupted)") |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
711 continuity(url) |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
712 print('') |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
713 print("performing speed comparison") |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
714 comp(N, url) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
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changeset
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715 print('') |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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716 print("performing dropped-connection check") |
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http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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changeset
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717 test_timeout(url) |
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clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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changeset
|
718 |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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719 if __name__ == '__main__': |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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changeset
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720 import time |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
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721 try: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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changeset
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722 N = int(sys.argv[1]) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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723 url = sys.argv[2] |
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cleanup: replace naked excepts with more specific ones
Brodie Rao <brodie@sf.io>
parents:
16687
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724 except (IndexError, ValueError): |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
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725 print("%s <integer> <url>" % sys.argv[0]) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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changeset
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726 else: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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changeset
|
727 test(url, N) |