Mercurial > hg
annotate mercurial/keepalive.py @ 29440:009cc6c89d0f
chg: silence warning of unused parameter 'sig'
author | Yuya Nishihara <yuya@tcha.org> |
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date | Tue, 28 Jun 2016 22:39:06 +0900 |
parents | 0d83ad967bf8 |
children | 0c741fd6158a |
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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 For python versions earlier than 2.4, you can avoid this fancy error |
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83 handling by setting the module-level global HANDLE_ERRORS to zero. |
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84 You see, prior to 2.4, it's the HTTP Handler's job to determine what |
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85 to handle specially, and what to just pass up. HANDLE_ERRORS == 0 |
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86 means "pass everything up". In python 2.4, however, this job no |
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87 longer belongs to the HTTP Handler and is now done by a NEW handler, |
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88 HTTPErrorProcessor. Here's the bottom line: |
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89 |
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90 python version < 2.4 |
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91 HANDLE_ERRORS == 1 (default) pass up 200, treat the rest as |
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92 errors |
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93 HANDLE_ERRORS == 0 pass everything up, error processing is |
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94 left to the calling code |
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95 python version >= 2.4 |
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96 HANDLE_ERRORS == 1 pass up 200, treat the rest as errors |
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97 HANDLE_ERRORS == 0 (default) pass everything up, let the |
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98 other handlers (specifically, |
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99 HTTPErrorProcessor) decide what to do |
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100 |
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101 In practice, setting the variable either way makes little difference |
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102 in python 2.4, so for the most consistent behavior across versions, |
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103 you probably just want to use the defaults, which will give you |
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104 exceptions on errors. |
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105 |
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106 """ |
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107 |
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108 # $Id: keepalive.py,v 1.14 2006/04/04 21:00:32 mstenner Exp $ |
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109 |
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110 from __future__ import absolute_import, print_function |
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111 |
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112 import errno |
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113 import hashlib |
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114 import httplib |
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115 import socket |
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116 import sys |
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117 import thread |
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118 |
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119 from . import ( |
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120 util, |
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121 ) |
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122 |
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123 urlerr = util.urlerr |
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124 urlreq = util.urlreq |
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125 |
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126 DEBUG = None |
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127 |
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128 if sys.version_info < (2, 4): |
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129 HANDLE_ERRORS = 1 |
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130 else: HANDLE_ERRORS = 0 |
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131 |
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132 class ConnectionManager(object): |
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133 """ |
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134 The connection manager must be able to: |
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135 * keep track of all existing |
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136 """ |
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137 def __init__(self): |
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138 self._lock = thread.allocate_lock() |
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139 self._hostmap = {} # map hosts to a list of connections |
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140 self._connmap = {} # map connections to host |
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141 self._readymap = {} # map connection to ready state |
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142 |
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143 def add(self, host, connection, ready): |
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144 self._lock.acquire() |
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145 try: |
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146 if host not in self._hostmap: |
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147 self._hostmap[host] = [] |
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148 self._hostmap[host].append(connection) |
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149 self._connmap[connection] = host |
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150 self._readymap[connection] = ready |
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151 finally: |
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152 self._lock.release() |
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153 |
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154 def remove(self, connection): |
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155 self._lock.acquire() |
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156 try: |
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157 try: |
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158 host = self._connmap[connection] |
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159 except KeyError: |
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160 pass |
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161 else: |
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162 del self._connmap[connection] |
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163 del self._readymap[connection] |
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164 self._hostmap[host].remove(connection) |
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165 if not self._hostmap[host]: del self._hostmap[host] |
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166 finally: |
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167 self._lock.release() |
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168 |
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169 def set_ready(self, connection, ready): |
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170 try: |
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171 self._readymap[connection] = ready |
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172 except KeyError: |
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173 pass |
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174 |
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175 def get_ready_conn(self, host): |
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176 conn = None |
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177 self._lock.acquire() |
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178 try: |
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179 if host in self._hostmap: |
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180 for c in self._hostmap[host]: |
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181 if self._readymap[c]: |
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182 self._readymap[c] = 0 |
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183 conn = c |
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184 break |
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185 finally: |
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186 self._lock.release() |
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187 return conn |
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188 |
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189 def get_all(self, host=None): |
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190 if host: |
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191 return list(self._hostmap.get(host, [])) |
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192 else: |
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193 return dict(self._hostmap) |
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194 |
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195 class KeepAliveHandler(object): |
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196 def __init__(self): |
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197 self._cm = ConnectionManager() |
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198 |
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199 #### Connection Management |
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200 def open_connections(self): |
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201 """return a list of connected hosts and the number of connections |
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202 to each. [('foo.com:80', 2), ('bar.org', 1)]""" |
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203 return [(host, len(li)) for (host, li) in self._cm.get_all().items()] |
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204 |
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205 def close_connection(self, host): |
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206 """close connection(s) to <host> |
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207 host is the host:port spec, as in 'www.cnn.com:8080' as passed in. |
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208 no error occurs if there is no connection to that host.""" |
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209 for h in self._cm.get_all(host): |
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210 self._cm.remove(h) |
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211 h.close() |
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212 |
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213 def close_all(self): |
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214 """close all open connections""" |
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215 for host, conns in self._cm.get_all().iteritems(): |
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216 for h in conns: |
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217 self._cm.remove(h) |
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218 h.close() |
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219 |
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220 def _request_closed(self, request, host, connection): |
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221 """tells us that this request is now closed and that the |
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222 connection is ready for another request""" |
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223 self._cm.set_ready(connection, 1) |
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224 |
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225 def _remove_connection(self, host, connection, close=0): |
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226 if close: |
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227 connection.close() |
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228 self._cm.remove(connection) |
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229 |
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230 #### Transaction Execution |
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231 def http_open(self, req): |
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232 return self.do_open(HTTPConnection, req) |
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233 |
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234 def do_open(self, http_class, req): |
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235 host = req.get_host() |
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236 if not host: |
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237 raise urlerr.urlerror('no host given') |
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238 |
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239 try: |
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240 h = self._cm.get_ready_conn(host) |
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241 while h: |
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242 r = self._reuse_connection(h, req, host) |
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243 |
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244 # if this response is non-None, then it worked and we're |
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245 # done. Break out, skipping the else block. |
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246 if r: |
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247 break |
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248 |
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249 # connection is bad - possibly closed by server |
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250 # discard it and ask for the next free connection |
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251 h.close() |
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252 self._cm.remove(h) |
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253 h = self._cm.get_ready_conn(host) |
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254 else: |
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255 # no (working) free connections were found. Create a new one. |
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256 h = http_class(host) |
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257 if DEBUG: |
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258 DEBUG.info("creating new connection to %s (%d)", |
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259 host, id(h)) |
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260 self._cm.add(host, h, 0) |
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261 self._start_transaction(h, req) |
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262 r = h.getresponse() |
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263 except (socket.error, httplib.HTTPException) as err: |
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264 raise urlerr.urlerror(err) |
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265 |
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266 # if not a persistent connection, don't try to reuse it |
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267 if r.will_close: |
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268 self._cm.remove(h) |
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269 |
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270 if DEBUG: |
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271 DEBUG.info("STATUS: %s, %s", r.status, r.reason) |
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272 r._handler = self |
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273 r._host = host |
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274 r._url = req.get_full_url() |
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275 r._connection = h |
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276 r.code = r.status |
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277 r.headers = r.msg |
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278 r.msg = r.reason |
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279 |
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280 if r.status == 200 or not HANDLE_ERRORS: |
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281 return r |
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282 else: |
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283 return self.parent.error('http', req, r, |
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284 r.status, r.msg, r.headers) |
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285 |
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286 def _reuse_connection(self, h, req, host): |
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287 """start the transaction with a re-used connection |
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288 return a response object (r) upon success or None on failure. |
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289 This DOES not close or remove bad connections in cases where |
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290 it returns. However, if an unexpected exception occurs, it |
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291 will close and remove the connection before re-raising. |
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292 """ |
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293 try: |
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294 self._start_transaction(h, req) |
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295 r = h.getresponse() |
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296 # note: just because we got something back doesn't mean it |
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297 # worked. We'll check the version below, too. |
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298 except (socket.error, httplib.HTTPException): |
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299 r = None |
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300 except: # re-raises |
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301 # adding this block just in case we've missed |
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302 # something we will still raise the exception, but |
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303 # lets try and close the connection and remove it |
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304 # first. We previously got into a nasty loop |
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305 # where an exception was uncaught, and so the |
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306 # connection stayed open. On the next try, the |
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307 # same exception was raised, etc. The trade-off is |
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308 # that it's now possible this call will raise |
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309 # a DIFFERENT exception |
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310 if DEBUG: |
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311 DEBUG.error("unexpected exception - closing " |
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312 "connection to %s (%d)", host, id(h)) |
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313 self._cm.remove(h) |
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314 h.close() |
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315 raise |
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316 |
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317 if r is None or r.version == 9: |
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318 # httplib falls back to assuming HTTP 0.9 if it gets a |
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319 # bad header back. This is most likely to happen if |
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320 # the socket has been closed by the server since we |
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321 # last used the connection. |
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322 if DEBUG: |
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323 DEBUG.info("failed to re-use connection to %s (%d)", |
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324 host, id(h)) |
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325 r = None |
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326 else: |
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327 if DEBUG: |
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328 DEBUG.info("re-using connection to %s (%d)", host, id(h)) |
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329 |
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330 return r |
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331 |
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332 def _start_transaction(self, h, req): |
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333 # What follows mostly reimplements HTTPConnection.request() |
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334 # except it adds self.parent.addheaders in the mix. |
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335 headers = req.headers.copy() |
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336 if sys.version_info >= (2, 4): |
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337 headers.update(req.unredirected_hdrs) |
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338 headers.update(self.parent.addheaders) |
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339 headers = dict((n.lower(), v) for n, v in headers.items()) |
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340 skipheaders = {} |
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341 for n in ('host', 'accept-encoding'): |
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342 if n in headers: |
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343 skipheaders['skip_' + n.replace('-', '_')] = 1 |
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344 try: |
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345 if req.has_data(): |
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346 data = req.get_data() |
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347 h.putrequest('POST', req.get_selector(), **skipheaders) |
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348 if 'content-type' not in headers: |
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349 h.putheader('Content-type', |
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350 'application/x-www-form-urlencoded') |
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351 if 'content-length' not in headers: |
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352 h.putheader('Content-length', '%d' % len(data)) |
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353 else: |
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354 h.putrequest('GET', req.get_selector(), **skipheaders) |
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355 except socket.error as err: |
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356 raise urlerr.urlerror(err) |
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357 for k, v in headers.items(): |
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358 h.putheader(k, v) |
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359 h.endheaders() |
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360 if req.has_data(): |
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361 h.send(data) |
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362 |
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363 class HTTPHandler(KeepAliveHandler, urlreq.httphandler): |
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364 pass |
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365 |
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366 class HTTPResponse(httplib.HTTPResponse): |
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367 # we need to subclass HTTPResponse in order to |
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368 # 1) add readline() and readlines() methods |
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369 # 2) add close_connection() methods |
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370 # 3) add info() and geturl() methods |
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371 |
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372 # in order to add readline(), read must be modified to deal with a |
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373 # buffer. example: readline must read a buffer and then spit back |
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374 # one line at a time. The only real alternative is to read one |
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375 # BYTE at a time (ick). Once something has been read, it can't be |
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376 # put back (ok, maybe it can, but that's even uglier than this), |
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377 # so if you THEN do a normal read, you must first take stuff from |
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378 # the buffer. |
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379 |
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380 # the read method wraps the original to accommodate buffering, |
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381 # although read() never adds to the buffer. |
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382 # Both readline and readlines have been stolen with almost no |
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383 # modification from socket.py |
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384 |
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385 |
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386 def __init__(self, sock, debuglevel=0, strict=0, method=None): |
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387 httplib.HTTPResponse.__init__(self, sock, debuglevel, method) |
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388 self.fileno = sock.fileno |
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389 self.code = None |
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390 self._rbuf = '' |
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391 self._rbufsize = 8096 |
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392 self._handler = None # inserted by the handler later |
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393 self._host = None # (same) |
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394 self._url = None # (same) |
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395 self._connection = None # (same) |
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396 |
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397 _raw_read = httplib.HTTPResponse.read |
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398 |
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399 def close(self): |
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400 if self.fp: |
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401 self.fp.close() |
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402 self.fp = None |
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403 if self._handler: |
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404 self._handler._request_closed(self, self._host, |
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405 self._connection) |
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406 |
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407 def close_connection(self): |
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408 self._handler._remove_connection(self._host, self._connection, close=1) |
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409 self.close() |
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410 |
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411 def info(self): |
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412 return self.headers |
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413 |
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414 def geturl(self): |
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415 return self._url |
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416 |
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417 def read(self, amt=None): |
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418 # the _rbuf test is only in this first if for speed. It's not |
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419 # logically necessary |
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420 if self._rbuf and not amt is None: |
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421 L = len(self._rbuf) |
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422 if amt > L: |
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423 amt -= L |
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424 else: |
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425 s = self._rbuf[:amt] |
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426 self._rbuf = self._rbuf[amt:] |
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427 return s |
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428 |
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429 s = self._rbuf + self._raw_read(amt) |
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430 self._rbuf = '' |
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431 return s |
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432 |
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433 # stolen from Python SVN #68532 to fix issue1088 |
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434 def _read_chunked(self, amt): |
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435 chunk_left = self.chunk_left |
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436 value = '' |
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437 |
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438 # XXX This accumulates chunks by repeated string concatenation, |
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439 # which is not efficient as the number or size of chunks gets big. |
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440 while True: |
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441 if chunk_left is None: |
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442 line = self.fp.readline() |
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443 i = line.find(';') |
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444 if i >= 0: |
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445 line = line[:i] # strip chunk-extensions |
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446 try: |
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447 chunk_left = int(line, 16) |
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448 except ValueError: |
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449 # close the connection as protocol synchronization is |
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450 # probably lost |
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451 self.close() |
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452 raise httplib.IncompleteRead(value) |
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453 if chunk_left == 0: |
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454 break |
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455 if amt is None: |
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456 value += self._safe_read(chunk_left) |
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457 elif amt < chunk_left: |
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458 value += self._safe_read(amt) |
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459 self.chunk_left = chunk_left - amt |
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460 return value |
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461 elif amt == chunk_left: |
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462 value += self._safe_read(amt) |
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463 self._safe_read(2) # toss the CRLF at the end of the chunk |
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464 self.chunk_left = None |
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465 return value |
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466 else: |
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467 value += self._safe_read(chunk_left) |
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468 amt -= chunk_left |
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469 |
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470 # we read the whole chunk, get another |
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471 self._safe_read(2) # toss the CRLF at the end of the chunk |
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472 chunk_left = None |
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473 |
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474 # read and discard trailer up to the CRLF terminator |
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475 ### note: we shouldn't have any trailers! |
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476 while True: |
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477 line = self.fp.readline() |
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478 if not line: |
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479 # a vanishingly small number of sites EOF without |
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480 # sending the trailer |
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481 break |
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482 if line == '\r\n': |
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483 break |
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484 |
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485 # we read everything; close the "file" |
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486 self.close() |
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487 |
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488 return value |
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489 |
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490 def readline(self, limit=-1): |
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491 i = self._rbuf.find('\n') |
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492 while i < 0 and not (0 < limit <= len(self._rbuf)): |
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493 new = self._raw_read(self._rbufsize) |
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494 if not new: |
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495 break |
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496 i = new.find('\n') |
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497 if i >= 0: |
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498 i = i + len(self._rbuf) |
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499 self._rbuf = self._rbuf + new |
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500 if i < 0: |
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501 i = len(self._rbuf) |
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502 else: |
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503 i = i + 1 |
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504 if 0 <= limit < len(self._rbuf): |
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505 i = limit |
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506 data, self._rbuf = self._rbuf[:i], self._rbuf[i:] |
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507 return data |
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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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parents:
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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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diff
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|
588 class HTTPConnection(httplib.HTTPConnection): |
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parents:
diff
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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 |
2600
c4325f0a9b91
clean up trailing white space.
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parents:
2444
diff
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|
594 |
2435
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changeset
|
595 ######################################################################### |
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diff
changeset
|
596 ##### TEST FUNCTIONS |
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|
597 ######################################################################### |
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|
598 |
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599 def error_handler(url): |
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Vadim Gelfer <vadim.gelfer@gmail.com>
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|
600 global HANDLE_ERRORS |
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|
601 orig = HANDLE_ERRORS |
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602 keepalive_handler = HTTPHandler() |
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603 opener = urlreq.buildopener(keepalive_handler) |
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604 urlreq.installopener(opener) |
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parents:
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605 pos = {0: 'off', 1: 'on'} |
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606 for i in (0, 1): |
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|
607 print(" fancy error handling %s (HANDLE_ERRORS = %i)" % (pos[i], i)) |
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parents:
diff
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|
608 HANDLE_ERRORS = i |
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http client: support persistent connections.
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parents:
diff
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|
609 try: |
28883
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|
610 fo = urlreq.urlopen(url) |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7868
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|
611 fo.read() |
2435
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612 fo.close() |
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parents:
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|
613 try: |
08a0f04b56bd
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|
614 status, reason = fo.status, fo.reason |
08a0f04b56bd
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Matt Mackall <mpm@selenic.com>
parents:
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|
615 except AttributeError: |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
616 status, reason = None, None |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22958
diff
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|
617 except IOError as e: |
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618 print(" EXCEPTION: %s" % e) |
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http client: support persistent connections.
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parents:
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|
619 raise |
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http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
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|
620 else: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
621 print(" status = %s, reason = %s" % (status, reason)) |
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parents:
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|
622 HANDLE_ERRORS = orig |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
623 hosts = keepalive_handler.open_connections() |
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parents:
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624 print("open connections:", hosts) |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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625 keepalive_handler.close_all() |
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parents:
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|
626 |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
627 def continuity(url): |
29341
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Augie Fackler <raf@durin42.com>
parents:
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628 md5 = hashlib.md5 |
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parents:
diff
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|
629 format = '%25s: %s' |
2600
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clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
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|
630 |
2435
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parents:
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|
631 # first fetch the file with the normal http handler |
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|
632 opener = urlreq.buildopener() |
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diff
changeset
|
633 urlreq.installopener(opener) |
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634 fo = urlreq.urlopen(url) |
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parents:
diff
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|
635 foo = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
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|
636 fo.close() |
22505
232d437af120
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Mike Hommey <mh@glandium.org>
parents:
19872
diff
changeset
|
637 m = md5(foo) |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
638 print(format % ('normal urllib', m.hexdigest())) |
2435
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parents:
diff
changeset
|
639 |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
640 # now install the keepalive handler and try again |
28883
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timeless <timeless@mozdev.org>
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|
641 opener = urlreq.buildopener(HTTPHandler()) |
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
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|
642 urlreq.installopener(opener) |
2435
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parents:
diff
changeset
|
643 |
28883
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parents:
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diff
changeset
|
644 fo = urlreq.urlopen(url) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
645 foo = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
646 fo.close() |
22505
232d437af120
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Mike Hommey <mh@glandium.org>
parents:
19872
diff
changeset
|
647 m = md5(foo) |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
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changeset
|
648 print(format % ('keepalive read', m.hexdigest())) |
2435
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
649 |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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changeset
|
650 fo = urlreq.urlopen(url) |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
651 foo = '' |
14494
1ffeeb91c55d
check-code: flag 0/1 used as constant Boolean expression
Martin Geisler <mg@lazybytes.net>
parents:
10394
diff
changeset
|
652 while True: |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
653 f = fo.readline() |
10282
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Matt Mackall <mpm@selenic.com>
parents:
9726
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|
654 if f: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
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changeset
|
655 foo = foo + f |
2435
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parents:
diff
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|
656 else: break |
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parents:
diff
changeset
|
657 fo.close() |
22505
232d437af120
keepalive: fix how md5 is used
Mike Hommey <mh@glandium.org>
parents:
19872
diff
changeset
|
658 m = md5(foo) |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
659 print(format % ('keepalive readline', m.hexdigest())) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
660 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
661 def comp(N, url): |
27616
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parents:
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diff
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|
662 print(' making %i connections to:\n %s' % (N, url)) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
663 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
664 sys.stdout.write(' first using the normal urllib handlers') |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
665 # first use normal opener |
28883
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timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
666 opener = urlreq.buildopener() |
032c4c2f802a
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timeless <timeless@mozdev.org>
parents:
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changeset
|
667 urlreq.installopener(opener) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
668 t1 = fetch(N, url) |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
669 print(' TIME: %.3f s' % t1) |
2435
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
670 |
ff2bac730b99
http client: support persistent connections.
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parents:
diff
changeset
|
671 sys.stdout.write(' now using the keepalive handler ') |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
672 # now install the keepalive handler and try again |
28883
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timeless <timeless@mozdev.org>
parents:
28278
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changeset
|
673 opener = urlreq.buildopener(HTTPHandler()) |
032c4c2f802a
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timeless <timeless@mozdev.org>
parents:
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changeset
|
674 urlreq.installopener(opener) |
2435
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parents:
diff
changeset
|
675 t2 = fetch(N, url) |
27616
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
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changeset
|
676 print(' TIME: %.3f s' % t2) |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
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|
677 print(' improvement factor: %.2f' % (t1 / t2)) |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
678 |
2435
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parents:
diff
changeset
|
679 def fetch(N, url, delay=0): |
ff2bac730b99
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parents:
diff
changeset
|
680 import time |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
681 lens = [] |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
682 starttime = time.time() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
683 for i in range(N): |
10282
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many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
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changeset
|
684 if delay and i > 0: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9726
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changeset
|
685 time.sleep(delay) |
28883
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parents:
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changeset
|
686 fo = urlreq.urlopen(url) |
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parents:
diff
changeset
|
687 foo = fo.read() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
688 fo.close() |
ff2bac730b99
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parents:
diff
changeset
|
689 lens.append(len(foo)) |
ff2bac730b99
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parents:
diff
changeset
|
690 diff = time.time() - starttime |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
691 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
692 j = 0 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
693 for i in lens[1:]: |
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parents:
diff
changeset
|
694 j = j + 1 |
ff2bac730b99
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parents:
diff
changeset
|
695 if not i == lens[0]: |
27616
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changeset
|
696 print("WARNING: inconsistent length on read %i: %i" % (j, i)) |
2435
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parents:
diff
changeset
|
697 |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
698 return diff |
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
699 |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
700 def test_timeout(url): |
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parents:
diff
changeset
|
701 global DEBUG |
ff2bac730b99
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parents:
diff
changeset
|
702 dbbackup = DEBUG |
14764
a7d5816087a9
classes: fix class style problems found by b071cd58af50
Thomas Arendsen Hein <thomas@intevation.de>
parents:
14494
diff
changeset
|
703 class FakeLogger(object): |
10282
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parents:
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|
704 def debug(self, msg, *args): |
27616
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changeset
|
705 print(msg % args) |
2435
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parents:
diff
changeset
|
706 info = warning = error = debug |
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parents:
diff
changeset
|
707 DEBUG = FakeLogger() |
27616
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changeset
|
708 print(" fetching the file to establish a connection") |
28883
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changeset
|
709 fo = urlreq.urlopen(url) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
710 data1 = fo.read() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
711 fo.close() |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
712 |
2435
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parents:
diff
changeset
|
713 i = 20 |
27616
0765d8423fbc
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
714 print(" waiting %i seconds for the server to close the connection" % i) |
2435
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
715 while i > 0: |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
716 sys.stdout.write('\r %2i' % i) |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
717 sys.stdout.flush() |
ff2bac730b99
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
718 time.sleep(1) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
719 i -= 1 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
720 sys.stderr.write('\r') |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
721 |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
722 print(" fetching the file a second time") |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28278
diff
changeset
|
723 fo = urlreq.urlopen(url) |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
724 data2 = fo.read() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
725 fo.close() |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
726 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
727 if data1 == data2: |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
728 print(' data are identical') |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
729 else: |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
730 print(' ERROR: DATA DIFFER') |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
731 |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
732 DEBUG = dbbackup |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
733 |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
734 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
735 def test(url, N=10): |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
736 print("checking error handler (do this on a non-200)") |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
737 try: error_handler(url) |
7875
553aa0cbeab6
cleanup: drop unused assignments
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7874
diff
changeset
|
738 except IOError: |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
739 print("exiting - exception will prevent further tests") |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
740 sys.exit() |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
741 print('') |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
742 print("performing continuity test (making sure stuff isn't corrupted)") |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
743 continuity(url) |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
744 print('') |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
745 print("performing speed comparison") |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
746 comp(N, url) |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
747 print('') |
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
748 print("performing dropped-connection check") |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
749 test_timeout(url) |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2444
diff
changeset
|
750 |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
751 if __name__ == '__main__': |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
752 import time |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
753 try: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
754 N = int(sys.argv[1]) |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
755 url = sys.argv[2] |
16688
cfb6682961b8
cleanup: replace naked excepts with more specific ones
Brodie Rao <brodie@sf.io>
parents:
16687
diff
changeset
|
756 except (IndexError, ValueError): |
27616
0765d8423fbc
keepalive: use print function
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27507
diff
changeset
|
757 print("%s <integer> <url>" % sys.argv[0]) |
2435
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
758 else: |
ff2bac730b99
http client: support persistent connections.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
759 test(url, N) |