Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/urllib3/response.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 from __future__ import absolute_import |
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2 |
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3 import io |
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4 import logging |
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5 import zlib |
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6 from contextlib import contextmanager |
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7 from socket import error as SocketError |
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8 from socket import timeout as SocketTimeout |
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9 |
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10 try: |
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11 import brotli |
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12 except ImportError: |
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13 brotli = None |
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14 |
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15 from ._collections import HTTPHeaderDict |
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16 from .connection import BaseSSLError, HTTPException |
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17 from .exceptions import ( |
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18 BodyNotHttplibCompatible, |
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19 DecodeError, |
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20 HTTPError, |
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21 IncompleteRead, |
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22 InvalidChunkLength, |
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23 InvalidHeader, |
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24 ProtocolError, |
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25 ReadTimeoutError, |
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26 ResponseNotChunked, |
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27 SSLError, |
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28 ) |
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29 from .packages import six |
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30 from .util.response import is_fp_closed, is_response_to_head |
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31 |
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32 log = logging.getLogger(__name__) |
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33 |
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34 |
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35 class DeflateDecoder(object): |
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36 def __init__(self): |
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37 self._first_try = True |
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38 self._data = b"" |
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39 self._obj = zlib.decompressobj() |
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40 |
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41 def __getattr__(self, name): |
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42 return getattr(self._obj, name) |
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43 |
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44 def decompress(self, data): |
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45 if not data: |
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46 return data |
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47 |
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48 if not self._first_try: |
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49 return self._obj.decompress(data) |
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50 |
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51 self._data += data |
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52 try: |
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53 decompressed = self._obj.decompress(data) |
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54 if decompressed: |
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55 self._first_try = False |
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56 self._data = None |
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57 return decompressed |
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58 except zlib.error: |
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59 self._first_try = False |
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60 self._obj = zlib.decompressobj(-zlib.MAX_WBITS) |
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61 try: |
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62 return self.decompress(self._data) |
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63 finally: |
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64 self._data = None |
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65 |
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66 |
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67 class GzipDecoderState(object): |
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68 |
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69 FIRST_MEMBER = 0 |
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70 OTHER_MEMBERS = 1 |
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71 SWALLOW_DATA = 2 |
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72 |
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73 |
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74 class GzipDecoder(object): |
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75 def __init__(self): |
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76 self._obj = zlib.decompressobj(16 + zlib.MAX_WBITS) |
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77 self._state = GzipDecoderState.FIRST_MEMBER |
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78 |
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79 def __getattr__(self, name): |
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80 return getattr(self._obj, name) |
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81 |
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82 def decompress(self, data): |
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83 ret = bytearray() |
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84 if self._state == GzipDecoderState.SWALLOW_DATA or not data: |
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85 return bytes(ret) |
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86 while True: |
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87 try: |
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88 ret += self._obj.decompress(data) |
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89 except zlib.error: |
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90 previous_state = self._state |
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91 # Ignore data after the first error |
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92 self._state = GzipDecoderState.SWALLOW_DATA |
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93 if previous_state == GzipDecoderState.OTHER_MEMBERS: |
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94 # Allow trailing garbage acceptable in other gzip clients |
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95 return bytes(ret) |
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96 raise |
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97 data = self._obj.unused_data |
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98 if not data: |
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99 return bytes(ret) |
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100 self._state = GzipDecoderState.OTHER_MEMBERS |
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101 self._obj = zlib.decompressobj(16 + zlib.MAX_WBITS) |
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102 |
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103 |
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104 if brotli is not None: |
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105 |
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106 class BrotliDecoder(object): |
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107 # Supports both 'brotlipy' and 'Brotli' packages |
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108 # since they share an import name. The top branches |
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109 # are for 'brotlipy' and bottom branches for 'Brotli' |
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110 def __init__(self): |
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111 self._obj = brotli.Decompressor() |
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112 if hasattr(self._obj, "decompress"): |
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113 self.decompress = self._obj.decompress |
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114 else: |
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115 self.decompress = self._obj.process |
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116 |
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117 def flush(self): |
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118 if hasattr(self._obj, "flush"): |
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119 return self._obj.flush() |
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120 return b"" |
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121 |
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122 |
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123 class MultiDecoder(object): |
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124 """ |
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125 From RFC7231: |
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126 If one or more encodings have been applied to a representation, the |
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127 sender that applied the encodings MUST generate a Content-Encoding |
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128 header field that lists the content codings in the order in which |
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129 they were applied. |
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130 """ |
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131 |
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132 def __init__(self, modes): |
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133 self._decoders = [_get_decoder(m.strip()) for m in modes.split(",")] |
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134 |
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135 def flush(self): |
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136 return self._decoders[0].flush() |
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137 |
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138 def decompress(self, data): |
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139 for d in reversed(self._decoders): |
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140 data = d.decompress(data) |
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141 return data |
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142 |
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143 |
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144 def _get_decoder(mode): |
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145 if "," in mode: |
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146 return MultiDecoder(mode) |
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147 |
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148 if mode == "gzip": |
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149 return GzipDecoder() |
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150 |
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151 if brotli is not None and mode == "br": |
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152 return BrotliDecoder() |
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153 |
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154 return DeflateDecoder() |
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155 |
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156 |
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157 class HTTPResponse(io.IOBase): |
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158 """ |
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159 HTTP Response container. |
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160 |
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161 Backwards-compatible with :class:`http.client.HTTPResponse` but the response ``body`` is |
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162 loaded and decoded on-demand when the ``data`` property is accessed. This |
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163 class is also compatible with the Python standard library's :mod:`io` |
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164 module, and can hence be treated as a readable object in the context of that |
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165 framework. |
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166 |
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167 Extra parameters for behaviour not present in :class:`http.client.HTTPResponse`: |
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168 |
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169 :param preload_content: |
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170 If True, the response's body will be preloaded during construction. |
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171 |
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172 :param decode_content: |
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173 If True, will attempt to decode the body based on the |
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174 'content-encoding' header. |
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175 |
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176 :param original_response: |
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177 When this HTTPResponse wrapper is generated from an :class:`http.client.HTTPResponse` |
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178 object, it's convenient to include the original for debug purposes. It's |
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179 otherwise unused. |
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180 |
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181 :param retries: |
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182 The retries contains the last :class:`~urllib3.util.retry.Retry` that |
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183 was used during the request. |
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184 |
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185 :param enforce_content_length: |
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186 Enforce content length checking. Body returned by server must match |
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187 value of Content-Length header, if present. Otherwise, raise error. |
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188 """ |
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189 |
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190 CONTENT_DECODERS = ["gzip", "deflate"] |
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191 if brotli is not None: |
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192 CONTENT_DECODERS += ["br"] |
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193 REDIRECT_STATUSES = [301, 302, 303, 307, 308] |
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194 |
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195 def __init__( |
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196 self, |
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197 body="", |
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198 headers=None, |
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199 status=0, |
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200 version=0, |
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201 reason=None, |
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202 strict=0, |
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203 preload_content=True, |
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204 decode_content=True, |
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205 original_response=None, |
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206 pool=None, |
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207 connection=None, |
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208 msg=None, |
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209 retries=None, |
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210 enforce_content_length=False, |
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211 request_method=None, |
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212 request_url=None, |
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213 auto_close=True, |
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214 ): |
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215 |
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216 if isinstance(headers, HTTPHeaderDict): |
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217 self.headers = headers |
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218 else: |
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219 self.headers = HTTPHeaderDict(headers) |
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220 self.status = status |
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221 self.version = version |
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222 self.reason = reason |
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223 self.strict = strict |
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224 self.decode_content = decode_content |
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225 self.retries = retries |
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226 self.enforce_content_length = enforce_content_length |
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227 self.auto_close = auto_close |
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228 |
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229 self._decoder = None |
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230 self._body = None |
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231 self._fp = None |
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232 self._original_response = original_response |
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233 self._fp_bytes_read = 0 |
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234 self.msg = msg |
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235 self._request_url = request_url |
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236 |
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237 if body and isinstance(body, (six.string_types, bytes)): |
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238 self._body = body |
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239 |
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240 self._pool = pool |
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241 self._connection = connection |
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242 |
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243 if hasattr(body, "read"): |
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244 self._fp = body |
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245 |
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246 # Are we using the chunked-style of transfer encoding? |
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247 self.chunked = False |
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248 self.chunk_left = None |
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249 tr_enc = self.headers.get("transfer-encoding", "").lower() |
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250 # Don't incur the penalty of creating a list and then discarding it |
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251 encodings = (enc.strip() for enc in tr_enc.split(",")) |
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252 if "chunked" in encodings: |
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253 self.chunked = True |
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254 |
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255 # Determine length of response |
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256 self.length_remaining = self._init_length(request_method) |
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257 |
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258 # If requested, preload the body. |
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259 if preload_content and not self._body: |
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260 self._body = self.read(decode_content=decode_content) |
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261 |
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262 def get_redirect_location(self): |
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263 """ |
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264 Should we redirect and where to? |
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265 |
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266 :returns: Truthy redirect location string if we got a redirect status |
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267 code and valid location. ``None`` if redirect status and no |
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268 location. ``False`` if not a redirect status code. |
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269 """ |
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270 if self.status in self.REDIRECT_STATUSES: |
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271 return self.headers.get("location") |
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272 |
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273 return False |
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274 |
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275 def release_conn(self): |
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276 if not self._pool or not self._connection: |
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277 return |
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278 |
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279 self._pool._put_conn(self._connection) |
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280 self._connection = None |
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281 |
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282 def drain_conn(self): |
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283 """ |
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284 Read and discard any remaining HTTP response data in the response connection. |
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285 |
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286 Unread data in the HTTPResponse connection blocks the connection from being released back to the pool. |
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287 """ |
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288 try: |
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289 self.read() |
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290 except (HTTPError, SocketError, BaseSSLError, HTTPException): |
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291 pass |
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292 |
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293 @property |
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294 def data(self): |
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295 # For backwards-compat with earlier urllib3 0.4 and earlier. |
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296 if self._body: |
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297 return self._body |
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298 |
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299 if self._fp: |
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300 return self.read(cache_content=True) |
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301 |
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302 @property |
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303 def connection(self): |
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304 return self._connection |
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305 |
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306 def isclosed(self): |
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307 return is_fp_closed(self._fp) |
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308 |
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309 def tell(self): |
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310 """ |
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311 Obtain the number of bytes pulled over the wire so far. May differ from |
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312 the amount of content returned by :meth:``urllib3.response.HTTPResponse.read`` |
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313 if bytes are encoded on the wire (e.g, compressed). |
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314 """ |
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315 return self._fp_bytes_read |
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316 |
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317 def _init_length(self, request_method): |
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318 """ |
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319 Set initial length value for Response content if available. |
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320 """ |
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321 length = self.headers.get("content-length") |
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322 |
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323 if length is not None: |
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324 if self.chunked: |
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325 # This Response will fail with an IncompleteRead if it can't be |
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326 # received as chunked. This method falls back to attempt reading |
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327 # the response before raising an exception. |
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328 log.warning( |
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329 "Received response with both Content-Length and " |
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330 "Transfer-Encoding set. This is expressly forbidden " |
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331 "by RFC 7230 sec 3.3.2. Ignoring Content-Length and " |
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332 "attempting to process response as Transfer-Encoding: " |
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333 "chunked." |
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334 ) |
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335 return None |
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336 |
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337 try: |
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338 # RFC 7230 section 3.3.2 specifies multiple content lengths can |
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339 # be sent in a single Content-Length header |
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340 # (e.g. Content-Length: 42, 42). This line ensures the values |
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341 # are all valid ints and that as long as the `set` length is 1, |
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342 # all values are the same. Otherwise, the header is invalid. |
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343 lengths = set([int(val) for val in length.split(",")]) |
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344 if len(lengths) > 1: |
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345 raise InvalidHeader( |
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346 "Content-Length contained multiple " |
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347 "unmatching values (%s)" % length |
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348 ) |
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349 length = lengths.pop() |
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350 except ValueError: |
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351 length = None |
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352 else: |
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353 if length < 0: |
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354 length = None |
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355 |
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356 # Convert status to int for comparison |
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357 # In some cases, httplib returns a status of "_UNKNOWN" |
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358 try: |
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359 status = int(self.status) |
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360 except ValueError: |
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361 status = 0 |
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362 |
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363 # Check for responses that shouldn't include a body |
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364 if status in (204, 304) or 100 <= status < 200 or request_method == "HEAD": |
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365 length = 0 |
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366 |
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367 return length |
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368 |
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369 def _init_decoder(self): |
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370 """ |
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371 Set-up the _decoder attribute if necessary. |
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372 """ |
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373 # Note: content-encoding value should be case-insensitive, per RFC 7230 |
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374 # Section 3.2 |
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375 content_encoding = self.headers.get("content-encoding", "").lower() |
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376 if self._decoder is None: |
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377 if content_encoding in self.CONTENT_DECODERS: |
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378 self._decoder = _get_decoder(content_encoding) |
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379 elif "," in content_encoding: |
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380 encodings = [ |
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381 e.strip() |
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382 for e in content_encoding.split(",") |
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383 if e.strip() in self.CONTENT_DECODERS |
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384 ] |
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385 if len(encodings): |
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386 self._decoder = _get_decoder(content_encoding) |
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387 |
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388 DECODER_ERROR_CLASSES = (IOError, zlib.error) |
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389 if brotli is not None: |
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390 DECODER_ERROR_CLASSES += (brotli.error,) |
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391 |
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392 def _decode(self, data, decode_content, flush_decoder): |
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393 """ |
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394 Decode the data passed in and potentially flush the decoder. |
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395 """ |
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396 if not decode_content: |
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397 return data |
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398 |
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399 try: |
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400 if self._decoder: |
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401 data = self._decoder.decompress(data) |
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402 except self.DECODER_ERROR_CLASSES as e: |
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403 content_encoding = self.headers.get("content-encoding", "").lower() |
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404 raise DecodeError( |
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405 "Received response with content-encoding: %s, but " |
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406 "failed to decode it." % content_encoding, |
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407 e, |
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408 ) |
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409 if flush_decoder: |
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410 data += self._flush_decoder() |
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411 |
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412 return data |
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413 |
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414 def _flush_decoder(self): |
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415 """ |
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416 Flushes the decoder. Should only be called if the decoder is actually |
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417 being used. |
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418 """ |
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419 if self._decoder: |
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420 buf = self._decoder.decompress(b"") |
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421 return buf + self._decoder.flush() |
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422 |
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423 return b"" |
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424 |
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425 @contextmanager |
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426 def _error_catcher(self): |
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427 """ |
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428 Catch low-level python exceptions, instead re-raising urllib3 |
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429 variants, so that low-level exceptions are not leaked in the |
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430 high-level api. |
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431 |
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432 On exit, release the connection back to the pool. |
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433 """ |
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434 clean_exit = False |
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435 |
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436 try: |
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437 try: |
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438 yield |
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439 |
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440 except SocketTimeout: |
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441 # FIXME: Ideally we'd like to include the url in the ReadTimeoutError but |
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442 # there is yet no clean way to get at it from this context. |
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443 raise ReadTimeoutError(self._pool, None, "Read timed out.") |
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444 |
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445 except BaseSSLError as e: |
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446 # FIXME: Is there a better way to differentiate between SSLErrors? |
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447 if "read operation timed out" not in str(e): |
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448 # SSL errors related to framing/MAC get wrapped and reraised here |
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449 raise SSLError(e) |
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450 |
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451 raise ReadTimeoutError(self._pool, None, "Read timed out.") |
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452 |
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453 except (HTTPException, SocketError) as e: |
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454 # This includes IncompleteRead. |
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455 raise ProtocolError("Connection broken: %r" % e, e) |
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456 |
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457 # If no exception is thrown, we should avoid cleaning up |
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458 # unnecessarily. |
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459 clean_exit = True |
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460 finally: |
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461 # If we didn't terminate cleanly, we need to throw away our |
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462 # connection. |
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463 if not clean_exit: |
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464 # The response may not be closed but we're not going to use it |
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465 # anymore so close it now to ensure that the connection is |
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466 # released back to the pool. |
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467 if self._original_response: |
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468 self._original_response.close() |
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469 |
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470 # Closing the response may not actually be sufficient to close |
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471 # everything, so if we have a hold of the connection close that |
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472 # too. |
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473 if self._connection: |
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474 self._connection.close() |
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475 |
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476 # If we hold the original response but it's closed now, we should |
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477 # return the connection back to the pool. |
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478 if self._original_response and self._original_response.isclosed(): |
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479 self.release_conn() |
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480 |
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481 def read(self, amt=None, decode_content=None, cache_content=False): |
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482 """ |
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483 Similar to :meth:`http.client.HTTPResponse.read`, but with two additional |
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484 parameters: ``decode_content`` and ``cache_content``. |
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485 |
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486 :param amt: |
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487 How much of the content to read. If specified, caching is skipped |
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488 because it doesn't make sense to cache partial content as the full |
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489 response. |
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490 |
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491 :param decode_content: |
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492 If True, will attempt to decode the body based on the |
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493 'content-encoding' header. |
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494 |
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495 :param cache_content: |
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496 If True, will save the returned data such that the same result is |
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497 returned despite of the state of the underlying file object. This |
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498 is useful if you want the ``.data`` property to continue working |
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499 after having ``.read()`` the file object. (Overridden if ``amt`` is |
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500 set.) |
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501 """ |
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502 self._init_decoder() |
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503 if decode_content is None: |
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504 decode_content = self.decode_content |
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505 |
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506 if self._fp is None: |
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507 return |
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508 |
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509 flush_decoder = False |
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510 fp_closed = getattr(self._fp, "closed", False) |
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511 |
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512 with self._error_catcher(): |
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513 if amt is None: |
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514 # cStringIO doesn't like amt=None |
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515 data = self._fp.read() if not fp_closed else b"" |
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516 flush_decoder = True |
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517 else: |
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518 cache_content = False |
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519 data = self._fp.read(amt) if not fp_closed else b"" |
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520 if ( |
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521 amt != 0 and not data |
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522 ): # Platform-specific: Buggy versions of Python. |
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523 # Close the connection when no data is returned |
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524 # |
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525 # This is redundant to what httplib/http.client _should_ |
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526 # already do. However, versions of python released before |
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527 # December 15, 2012 (http://bugs.python.org/issue16298) do |
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528 # not properly close the connection in all cases. There is |
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529 # no harm in redundantly calling close. |
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530 self._fp.close() |
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531 flush_decoder = True |
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532 if self.enforce_content_length and self.length_remaining not in ( |
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533 0, |
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534 None, |
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535 ): |
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536 # This is an edge case that httplib failed to cover due |
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537 # to concerns of backward compatibility. We're |
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538 # addressing it here to make sure IncompleteRead is |
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539 # raised during streaming, so all calls with incorrect |
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540 # Content-Length are caught. |
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541 raise IncompleteRead(self._fp_bytes_read, self.length_remaining) |
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542 |
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543 if data: |
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544 self._fp_bytes_read += len(data) |
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545 if self.length_remaining is not None: |
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546 self.length_remaining -= len(data) |
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547 |
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548 data = self._decode(data, decode_content, flush_decoder) |
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549 |
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550 if cache_content: |
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551 self._body = data |
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552 |
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553 return data |
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554 |
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555 def stream(self, amt=2 ** 16, decode_content=None): |
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556 """ |
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557 A generator wrapper for the read() method. A call will block until |
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558 ``amt`` bytes have been read from the connection or until the |
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559 connection is closed. |
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560 |
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561 :param amt: |
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562 How much of the content to read. The generator will return up to |
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563 much data per iteration, but may return less. This is particularly |
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564 likely when using compressed data. However, the empty string will |
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565 never be returned. |
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566 |
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567 :param decode_content: |
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568 If True, will attempt to decode the body based on the |
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569 'content-encoding' header. |
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570 """ |
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571 if self.chunked and self.supports_chunked_reads(): |
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572 for line in self.read_chunked(amt, decode_content=decode_content): |
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573 yield line |
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574 else: |
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575 while not is_fp_closed(self._fp): |
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576 data = self.read(amt=amt, decode_content=decode_content) |
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577 |
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578 if data: |
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579 yield data |
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580 |
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581 @classmethod |
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582 def from_httplib(ResponseCls, r, **response_kw): |
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583 """ |
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584 Given an :class:`http.client.HTTPResponse` instance ``r``, return a |
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585 corresponding :class:`urllib3.response.HTTPResponse` object. |
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586 |
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587 Remaining parameters are passed to the HTTPResponse constructor, along |
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588 with ``original_response=r``. |
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589 """ |
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590 headers = r.msg |
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591 |
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592 if not isinstance(headers, HTTPHeaderDict): |
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593 if six.PY2: |
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594 # Python 2.7 |
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595 headers = HTTPHeaderDict.from_httplib(headers) |
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596 else: |
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597 headers = HTTPHeaderDict(headers.items()) |
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598 |
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599 # HTTPResponse objects in Python 3 don't have a .strict attribute |
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600 strict = getattr(r, "strict", 0) |
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601 resp = ResponseCls( |
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602 body=r, |
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603 headers=headers, |
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604 status=r.status, |
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605 version=r.version, |
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606 reason=r.reason, |
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607 strict=strict, |
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608 original_response=r, |
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609 **response_kw |
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610 ) |
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611 return resp |
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612 |
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613 # Backwards-compatibility methods for http.client.HTTPResponse |
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614 def getheaders(self): |
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615 return self.headers |
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616 |
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617 def getheader(self, name, default=None): |
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618 return self.headers.get(name, default) |
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619 |
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620 # Backwards compatibility for http.cookiejar |
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621 def info(self): |
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622 return self.headers |
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623 |
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624 # Overrides from io.IOBase |
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625 def close(self): |
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626 if not self.closed: |
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627 self._fp.close() |
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628 |
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629 if self._connection: |
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630 self._connection.close() |
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631 |
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632 if not self.auto_close: |
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633 io.IOBase.close(self) |
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634 |
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635 @property |
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636 def closed(self): |
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637 if not self.auto_close: |
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638 return io.IOBase.closed.__get__(self) |
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639 elif self._fp is None: |
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640 return True |
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641 elif hasattr(self._fp, "isclosed"): |
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642 return self._fp.isclosed() |
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643 elif hasattr(self._fp, "closed"): |
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644 return self._fp.closed |
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645 else: |
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646 return True |
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647 |
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648 def fileno(self): |
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649 if self._fp is None: |
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650 raise IOError("HTTPResponse has no file to get a fileno from") |
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651 elif hasattr(self._fp, "fileno"): |
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652 return self._fp.fileno() |
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653 else: |
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654 raise IOError( |
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655 "The file-like object this HTTPResponse is wrapped " |
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656 "around has no file descriptor" |
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657 ) |
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658 |
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659 def flush(self): |
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660 if ( |
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661 self._fp is not None |
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662 and hasattr(self._fp, "flush") |
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663 and not getattr(self._fp, "closed", False) |
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664 ): |
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665 return self._fp.flush() |
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666 |
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667 def readable(self): |
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668 # This method is required for `io` module compatibility. |
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669 return True |
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670 |
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671 def readinto(self, b): |
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672 # This method is required for `io` module compatibility. |
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673 temp = self.read(len(b)) |
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674 if len(temp) == 0: |
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675 return 0 |
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676 else: |
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677 b[: len(temp)] = temp |
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678 return len(temp) |
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679 |
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680 def supports_chunked_reads(self): |
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681 """ |
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682 Checks if the underlying file-like object looks like a |
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683 :class:`http.client.HTTPResponse` object. We do this by testing for |
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684 the fp attribute. If it is present we assume it returns raw chunks as |
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685 processed by read_chunked(). |
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686 """ |
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687 return hasattr(self._fp, "fp") |
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688 |
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689 def _update_chunk_length(self): |
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690 # First, we'll figure out length of a chunk and then |
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691 # we'll try to read it from socket. |
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692 if self.chunk_left is not None: |
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693 return |
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694 line = self._fp.fp.readline() |
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695 line = line.split(b";", 1)[0] |
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696 try: |
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697 self.chunk_left = int(line, 16) |
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698 except ValueError: |
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699 # Invalid chunked protocol response, abort. |
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700 self.close() |
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701 raise InvalidChunkLength(self, line) |
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702 |
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703 def _handle_chunk(self, amt): |
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704 returned_chunk = None |
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705 if amt is None: |
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706 chunk = self._fp._safe_read(self.chunk_left) |
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707 returned_chunk = chunk |
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708 self._fp._safe_read(2) # Toss the CRLF at the end of the chunk. |
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709 self.chunk_left = None |
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710 elif amt < self.chunk_left: |
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711 value = self._fp._safe_read(amt) |
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712 self.chunk_left = self.chunk_left - amt |
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713 returned_chunk = value |
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714 elif amt == self.chunk_left: |
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715 value = self._fp._safe_read(amt) |
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716 self._fp._safe_read(2) # Toss the CRLF at the end of the chunk. |
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717 self.chunk_left = None |
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718 returned_chunk = value |
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719 else: # amt > self.chunk_left |
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720 returned_chunk = self._fp._safe_read(self.chunk_left) |
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721 self._fp._safe_read(2) # Toss the CRLF at the end of the chunk. |
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722 self.chunk_left = None |
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723 return returned_chunk |
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724 |
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725 def read_chunked(self, amt=None, decode_content=None): |
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726 """ |
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727 Similar to :meth:`HTTPResponse.read`, but with an additional |
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728 parameter: ``decode_content``. |
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729 |
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730 :param amt: |
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731 How much of the content to read. If specified, caching is skipped |
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732 because it doesn't make sense to cache partial content as the full |
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733 response. |
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734 |
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735 :param decode_content: |
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736 If True, will attempt to decode the body based on the |
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737 'content-encoding' header. |
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738 """ |
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739 self._init_decoder() |
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740 # FIXME: Rewrite this method and make it a class with a better structured logic. |
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741 if not self.chunked: |
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742 raise ResponseNotChunked( |
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743 "Response is not chunked. " |
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744 "Header 'transfer-encoding: chunked' is missing." |
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745 ) |
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746 if not self.supports_chunked_reads(): |
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747 raise BodyNotHttplibCompatible( |
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748 "Body should be http.client.HTTPResponse like. " |
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749 "It should have have an fp attribute which returns raw chunks." |
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750 ) |
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751 |
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752 with self._error_catcher(): |
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753 # Don't bother reading the body of a HEAD request. |
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754 if self._original_response and is_response_to_head(self._original_response): |
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755 self._original_response.close() |
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756 return |
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757 |
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758 # If a response is already read and closed |
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759 # then return immediately. |
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760 if self._fp.fp is None: |
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761 return |
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762 |
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763 while True: |
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764 self._update_chunk_length() |
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765 if self.chunk_left == 0: |
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766 break |
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767 chunk = self._handle_chunk(amt) |
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768 decoded = self._decode( |
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769 chunk, decode_content=decode_content, flush_decoder=False |
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770 ) |
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771 if decoded: |
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772 yield decoded |
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773 |
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774 if decode_content: |
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775 # On CPython and PyPy, we should never need to flush the |
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776 # decoder. However, on Jython we *might* need to, so |
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777 # lets defensively do it anyway. |
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778 decoded = self._flush_decoder() |
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779 if decoded: # Platform-specific: Jython. |
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780 yield decoded |
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781 |
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782 # Chunk content ends with \r\n: discard it. |
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783 while True: |
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784 line = self._fp.fp.readline() |
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785 if not line: |
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786 # Some sites may not end with '\r\n'. |
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787 break |
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788 if line == b"\r\n": |
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789 break |
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790 |
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791 # We read everything; close the "file". |
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792 if self._original_response: |
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793 self._original_response.close() |
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794 |
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795 def geturl(self): |
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796 """ |
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797 Returns the URL that was the source of this response. |
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798 If the request that generated this response redirected, this method |
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799 will return the final redirect location. |
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800 """ |
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801 if self.retries is not None and len(self.retries.history): |
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802 return self.retries.history[-1].redirect_location |
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803 else: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
804 return self._request_url |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
805 |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
806 def __iter__(self): |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
807 buffer = [] |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
808 for chunk in self.stream(decode_content=True): |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
809 if b"\n" in chunk: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
810 chunk = chunk.split(b"\n") |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
811 yield b"".join(buffer) + chunk[0] + b"\n" |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
812 for x in chunk[1:-1]: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
813 yield x + b"\n" |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
814 if chunk[-1]: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
815 buffer = [chunk[-1]] |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
816 else: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
817 buffer = [] |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
818 else: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
819 buffer.append(chunk) |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
820 if buffer: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
|
821 yield b"".join(buffer) |