Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/distlib/index.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
parents d30785e31577
children
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1 # -*- coding: utf-8 -*-
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2 #
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3 # Copyright (C) 2013 Vinay Sajip.
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4 # Licensed to the Python Software Foundation under a contributor agreement.
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5 # See LICENSE.txt and CONTRIBUTORS.txt.
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6 #
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7 import hashlib
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8 import logging
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9 import os
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10 import shutil
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11 import subprocess
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12 import tempfile
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13 try:
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14 from threading import Thread
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15 except ImportError:
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16 from dummy_threading import Thread
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17
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18 from . import DistlibException
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19 from .compat import (HTTPBasicAuthHandler, Request, HTTPPasswordMgr,
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20 urlparse, build_opener, string_types)
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21 from .util import cached_property, zip_dir, ServerProxy
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22
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23 logger = logging.getLogger(__name__)
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24
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25 DEFAULT_INDEX = 'https://pypi.org/pypi'
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26 DEFAULT_REALM = 'pypi'
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27
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28 class PackageIndex(object):
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29 """
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30 This class represents a package index compatible with PyPI, the Python
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31 Package Index.
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32 """
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33
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34 boundary = b'----------ThIs_Is_tHe_distlib_index_bouNdaRY_$'
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35
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36 def __init__(self, url=None):
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37 """
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38 Initialise an instance.
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39
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40 :param url: The URL of the index. If not specified, the URL for PyPI is
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41 used.
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42 """
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43 self.url = url or DEFAULT_INDEX
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44 self.read_configuration()
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45 scheme, netloc, path, params, query, frag = urlparse(self.url)
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46 if params or query or frag or scheme not in ('http', 'https'):
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47 raise DistlibException('invalid repository: %s' % self.url)
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48 self.password_handler = None
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49 self.ssl_verifier = None
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50 self.gpg = None
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51 self.gpg_home = None
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52 with open(os.devnull, 'w') as sink:
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53 # Use gpg by default rather than gpg2, as gpg2 insists on
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54 # prompting for passwords
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55 for s in ('gpg', 'gpg2'):
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56 try:
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57 rc = subprocess.check_call([s, '--version'], stdout=sink,
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58 stderr=sink)
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59 if rc == 0:
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60 self.gpg = s
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61 break
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62 except OSError:
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63 pass
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64
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65 def _get_pypirc_command(self):
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66 """
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67 Get the distutils command for interacting with PyPI configurations.
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68 :return: the command.
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69 """
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70 from distutils.core import Distribution
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71 from distutils.config import PyPIRCCommand
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72 d = Distribution()
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73 return PyPIRCCommand(d)
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74
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75 def read_configuration(self):
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76 """
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77 Read the PyPI access configuration as supported by distutils, getting
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78 PyPI to do the actual work. This populates ``username``, ``password``,
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79 ``realm`` and ``url`` attributes from the configuration.
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80 """
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81 # get distutils to do the work
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82 c = self._get_pypirc_command()
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83 c.repository = self.url
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84 cfg = c._read_pypirc()
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85 self.username = cfg.get('username')
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86 self.password = cfg.get('password')
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87 self.realm = cfg.get('realm', 'pypi')
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88 self.url = cfg.get('repository', self.url)
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89
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90 def save_configuration(self):
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91 """
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92 Save the PyPI access configuration. You must have set ``username`` and
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93 ``password`` attributes before calling this method.
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94
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95 Again, distutils is used to do the actual work.
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96 """
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97 self.check_credentials()
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98 # get distutils to do the work
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99 c = self._get_pypirc_command()
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100 c._store_pypirc(self.username, self.password)
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101
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102 def check_credentials(self):
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103 """
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104 Check that ``username`` and ``password`` have been set, and raise an
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105 exception if not.
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106 """
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107 if self.username is None or self.password is None:
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108 raise DistlibException('username and password must be set')
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109 pm = HTTPPasswordMgr()
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110 _, netloc, _, _, _, _ = urlparse(self.url)
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111 pm.add_password(self.realm, netloc, self.username, self.password)
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112 self.password_handler = HTTPBasicAuthHandler(pm)
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113
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114 def register(self, metadata):
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115 """
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116 Register a distribution on PyPI, using the provided metadata.
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117
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118 :param metadata: A :class:`Metadata` instance defining at least a name
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119 and version number for the distribution to be
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120 registered.
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121 :return: The HTTP response received from PyPI upon submission of the
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122 request.
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123 """
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124 self.check_credentials()
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125 metadata.validate()
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126 d = metadata.todict()
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127 d[':action'] = 'verify'
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128 request = self.encode_request(d.items(), [])
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129 response = self.send_request(request)
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130 d[':action'] = 'submit'
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131 request = self.encode_request(d.items(), [])
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132 return self.send_request(request)
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133
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134 def _reader(self, name, stream, outbuf):
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135 """
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136 Thread runner for reading lines of from a subprocess into a buffer.
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137
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138 :param name: The logical name of the stream (used for logging only).
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139 :param stream: The stream to read from. This will typically a pipe
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140 connected to the output stream of a subprocess.
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141 :param outbuf: The list to append the read lines to.
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142 """
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143 while True:
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144 s = stream.readline()
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145 if not s:
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146 break
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147 s = s.decode('utf-8').rstrip()
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148 outbuf.append(s)
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149 logger.debug('%s: %s' % (name, s))
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150 stream.close()
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151
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152 def get_sign_command(self, filename, signer, sign_password,
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153 keystore=None):
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154 """
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155 Return a suitable command for signing a file.
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156
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157 :param filename: The pathname to the file to be signed.
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158 :param signer: The identifier of the signer of the file.
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159 :param sign_password: The passphrase for the signer's
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160 private key used for signing.
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161 :param keystore: The path to a directory which contains the keys
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162 used in verification. If not specified, the
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163 instance's ``gpg_home`` attribute is used instead.
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164 :return: The signing command as a list suitable to be
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165 passed to :class:`subprocess.Popen`.
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166 """
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167 cmd = [self.gpg, '--status-fd', '2', '--no-tty']
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168 if keystore is None:
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169 keystore = self.gpg_home
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170 if keystore:
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171 cmd.extend(['--homedir', keystore])
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172 if sign_password is not None:
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173 cmd.extend(['--batch', '--passphrase-fd', '0'])
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174 td = tempfile.mkdtemp()
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175 sf = os.path.join(td, os.path.basename(filename) + '.asc')
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176 cmd.extend(['--detach-sign', '--armor', '--local-user',
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177 signer, '--output', sf, filename])
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178 logger.debug('invoking: %s', ' '.join(cmd))
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179 return cmd, sf
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180
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181 def run_command(self, cmd, input_data=None):
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182 """
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183 Run a command in a child process , passing it any input data specified.
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184
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185 :param cmd: The command to run.
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186 :param input_data: If specified, this must be a byte string containing
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187 data to be sent to the child process.
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188 :return: A tuple consisting of the subprocess' exit code, a list of
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189 lines read from the subprocess' ``stdout``, and a list of
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190 lines read from the subprocess' ``stderr``.
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191 """
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192 kwargs = {
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193 'stdout': subprocess.PIPE,
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194 'stderr': subprocess.PIPE,
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195 }
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196 if input_data is not None:
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197 kwargs['stdin'] = subprocess.PIPE
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198 stdout = []
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199 stderr = []
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200 p = subprocess.Popen(cmd, **kwargs)
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201 # We don't use communicate() here because we may need to
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202 # get clever with interacting with the command
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203 t1 = Thread(target=self._reader, args=('stdout', p.stdout, stdout))
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204 t1.start()
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205 t2 = Thread(target=self._reader, args=('stderr', p.stderr, stderr))
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206 t2.start()
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207 if input_data is not None:
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208 p.stdin.write(input_data)
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209 p.stdin.close()
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210
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211 p.wait()
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212 t1.join()
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213 t2.join()
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214 return p.returncode, stdout, stderr
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215
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216 def sign_file(self, filename, signer, sign_password, keystore=None):
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217 """
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218 Sign a file.
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219
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220 :param filename: The pathname to the file to be signed.
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221 :param signer: The identifier of the signer of the file.
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222 :param sign_password: The passphrase for the signer's
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223 private key used for signing.
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224 :param keystore: The path to a directory which contains the keys
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225 used in signing. If not specified, the instance's
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226 ``gpg_home`` attribute is used instead.
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227 :return: The absolute pathname of the file where the signature is
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228 stored.
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229 """
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230 cmd, sig_file = self.get_sign_command(filename, signer, sign_password,
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231 keystore)
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232 rc, stdout, stderr = self.run_command(cmd,
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233 sign_password.encode('utf-8'))
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234 if rc != 0:
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235 raise DistlibException('sign command failed with error '
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236 'code %s' % rc)
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237 return sig_file
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238
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239 def upload_file(self, metadata, filename, signer=None, sign_password=None,
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240 filetype='sdist', pyversion='source', keystore=None):
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241 """
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242 Upload a release file to the index.
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243
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244 :param metadata: A :class:`Metadata` instance defining at least a name
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245 and version number for the file to be uploaded.
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246 :param filename: The pathname of the file to be uploaded.
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247 :param signer: The identifier of the signer of the file.
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248 :param sign_password: The passphrase for the signer's
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249 private key used for signing.
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250 :param filetype: The type of the file being uploaded. This is the
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251 distutils command which produced that file, e.g.
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252 ``sdist`` or ``bdist_wheel``.
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253 :param pyversion: The version of Python which the release relates
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254 to. For code compatible with any Python, this would
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255 be ``source``, otherwise it would be e.g. ``3.2``.
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256 :param keystore: The path to a directory which contains the keys
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257 used in signing. If not specified, the instance's
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258 ``gpg_home`` attribute is used instead.
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259 :return: The HTTP response received from PyPI upon submission of the
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260 request.
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261 """
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262 self.check_credentials()
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263 if not os.path.exists(filename):
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264 raise DistlibException('not found: %s' % filename)
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265 metadata.validate()
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266 d = metadata.todict()
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267 sig_file = None
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268 if signer:
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269 if not self.gpg:
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270 logger.warning('no signing program available - not signed')
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271 else:
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272 sig_file = self.sign_file(filename, signer, sign_password,
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273 keystore)
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274 with open(filename, 'rb') as f:
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275 file_data = f.read()
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276 md5_digest = hashlib.md5(file_data).hexdigest()
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277 sha256_digest = hashlib.sha256(file_data).hexdigest()
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278 d.update({
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279 ':action': 'file_upload',
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280 'protocol_version': '1',
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281 'filetype': filetype,
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282 'pyversion': pyversion,
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283 'md5_digest': md5_digest,
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284 'sha256_digest': sha256_digest,
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285 })
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286 files = [('content', os.path.basename(filename), file_data)]
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287 if sig_file:
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288 with open(sig_file, 'rb') as f:
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289 sig_data = f.read()
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290 files.append(('gpg_signature', os.path.basename(sig_file),
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291 sig_data))
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292 shutil.rmtree(os.path.dirname(sig_file))
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293 request = self.encode_request(d.items(), files)
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294 return self.send_request(request)
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295
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296 def upload_documentation(self, metadata, doc_dir):
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297 """
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298 Upload documentation to the index.
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299
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300 :param metadata: A :class:`Metadata` instance defining at least a name
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301 and version number for the documentation to be
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302 uploaded.
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303 :param doc_dir: The pathname of the directory which contains the
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304 documentation. This should be the directory that
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305 contains the ``index.html`` for the documentation.
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306 :return: The HTTP response received from PyPI upon submission of the
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307 request.
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308 """
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309 self.check_credentials()
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310 if not os.path.isdir(doc_dir):
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311 raise DistlibException('not a directory: %r' % doc_dir)
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312 fn = os.path.join(doc_dir, 'index.html')
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313 if not os.path.exists(fn):
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314 raise DistlibException('not found: %r' % fn)
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315 metadata.validate()
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316 name, version = metadata.name, metadata.version
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317 zip_data = zip_dir(doc_dir).getvalue()
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318 fields = [(':action', 'doc_upload'),
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319 ('name', name), ('version', version)]
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320 files = [('content', name, zip_data)]
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321 request = self.encode_request(fields, files)
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322 return self.send_request(request)
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323
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324 def get_verify_command(self, signature_filename, data_filename,
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325 keystore=None):
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326 """
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327 Return a suitable command for verifying a file.
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328
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329 :param signature_filename: The pathname to the file containing the
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330 signature.
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331 :param data_filename: The pathname to the file containing the
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332 signed data.
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333 :param keystore: The path to a directory which contains the keys
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334 used in verification. If not specified, the
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335 instance's ``gpg_home`` attribute is used instead.
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336 :return: The verifying command as a list suitable to be
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337 passed to :class:`subprocess.Popen`.
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338 """
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339 cmd = [self.gpg, '--status-fd', '2', '--no-tty']
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340 if keystore is None:
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341 keystore = self.gpg_home
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342 if keystore:
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343 cmd.extend(['--homedir', keystore])
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344 cmd.extend(['--verify', signature_filename, data_filename])
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345 logger.debug('invoking: %s', ' '.join(cmd))
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346 return cmd
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347
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348 def verify_signature(self, signature_filename, data_filename,
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349 keystore=None):
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350 """
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351 Verify a signature for a file.
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352
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353 :param signature_filename: The pathname to the file containing the
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354 signature.
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355 :param data_filename: The pathname to the file containing the
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356 signed data.
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357 :param keystore: The path to a directory which contains the keys
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358 used in verification. If not specified, the
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359 instance's ``gpg_home`` attribute is used instead.
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360 :return: True if the signature was verified, else False.
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361 """
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362 if not self.gpg:
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363 raise DistlibException('verification unavailable because gpg '
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364 'unavailable')
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365 cmd = self.get_verify_command(signature_filename, data_filename,
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366 keystore)
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367 rc, stdout, stderr = self.run_command(cmd)
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368 if rc not in (0, 1):
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369 raise DistlibException('verify command failed with error '
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370 'code %s' % rc)
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371 return rc == 0
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372
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373 def download_file(self, url, destfile, digest=None, reporthook=None):
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374 """
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375 This is a convenience method for downloading a file from an URL.
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376 Normally, this will be a file from the index, though currently
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377 no check is made for this (i.e. a file can be downloaded from
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378 anywhere).
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379
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380 The method is just like the :func:`urlretrieve` function in the
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381 standard library, except that it allows digest computation to be
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382 done during download and checking that the downloaded data
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383 matched any expected value.
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384
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385 :param url: The URL of the file to be downloaded (assumed to be
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386 available via an HTTP GET request).
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387 :param destfile: The pathname where the downloaded file is to be
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388 saved.
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diff changeset
389 :param digest: If specified, this must be a (hasher, value)
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diff changeset
390 tuple, where hasher is the algorithm used (e.g.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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391 ``'md5'``) and ``value`` is the expected value.
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392 :param reporthook: The same as for :func:`urlretrieve` in the
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393 standard library.
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394 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
395 if digest is None:
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396 digester = None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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397 logger.debug('No digest specified')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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398 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
399 if isinstance(digest, (list, tuple)):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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400 hasher, digest = digest
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
401 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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402 hasher = 'md5'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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403 digester = getattr(hashlib, hasher)()
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diff changeset
404 logger.debug('Digest specified: %s' % digest)
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405 # The following code is equivalent to urlretrieve.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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406 # We need to do it this way so that we can compute the
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
407 # digest of the file as we go.
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408 with open(destfile, 'wb') as dfp:
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409 # addinfourl is not a context manager on 2.x
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410 # so we have to use try/finally
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411 sfp = self.send_request(Request(url))
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412 try:
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413 headers = sfp.info()
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414 blocksize = 8192
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415 size = -1
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416 read = 0
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417 blocknum = 0
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418 if "content-length" in headers:
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419 size = int(headers["Content-Length"])
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420 if reporthook:
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421 reporthook(blocknum, blocksize, size)
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422 while True:
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423 block = sfp.read(blocksize)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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424 if not block:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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425 break
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426 read += len(block)
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427 dfp.write(block)
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428 if digester:
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429 digester.update(block)
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430 blocknum += 1
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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431 if reporthook:
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432 reporthook(blocknum, blocksize, size)
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433 finally:
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434 sfp.close()
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435
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436 # check that we got the whole file, if we can
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437 if size >= 0 and read < size:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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438 raise DistlibException(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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439 'retrieval incomplete: got only %d out of %d bytes'
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440 % (read, size))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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441 # if we have a digest, it must match.
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442 if digester:
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443 actual = digester.hexdigest()
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444 if digest != actual:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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445 raise DistlibException('%s digest mismatch for %s: expected '
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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446 '%s, got %s' % (hasher, destfile,
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447 digest, actual))
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448 logger.debug('Digest verified: %s', digest)
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449
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450 def send_request(self, req):
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451 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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452 Send a standard library :class:`Request` to PyPI and return its
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453 response.
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454
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455 :param req: The request to send.
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456 :return: The HTTP response from PyPI (a standard library HTTPResponse).
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457 """
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458 handlers = []
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459 if self.password_handler:
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460 handlers.append(self.password_handler)
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461 if self.ssl_verifier:
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462 handlers.append(self.ssl_verifier)
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463 opener = build_opener(*handlers)
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464 return opener.open(req)
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465
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466 def encode_request(self, fields, files):
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467 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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468 Encode fields and files for posting to an HTTP server.
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469
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470 :param fields: The fields to send as a list of (fieldname, value)
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471 tuples.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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472 :param files: The files to send as a list of (fieldname, filename,
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473 file_bytes) tuple.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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474 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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475 # Adapted from packaging, which in turn was adapted from
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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476 # http://code.activestate.com/recipes/146306
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477
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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478 parts = []
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479 boundary = self.boundary
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480 for k, values in fields:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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481 if not isinstance(values, (list, tuple)):
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482 values = [values]
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483
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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484 for v in values:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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485 parts.extend((
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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486 b'--' + boundary,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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487 ('Content-Disposition: form-data; name="%s"' %
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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488 k).encode('utf-8'),
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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489 b'',
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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490 v.encode('utf-8')))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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491 for key, filename, value in files:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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492 parts.extend((
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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493 b'--' + boundary,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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494 ('Content-Disposition: form-data; name="%s"; filename="%s"' %
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495 (key, filename)).encode('utf-8'),
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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496 b'',
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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497 value))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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498
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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499 parts.extend((b'--' + boundary + b'--', b''))
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500
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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501 body = b'\r\n'.join(parts)
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502 ct = b'multipart/form-data; boundary=' + boundary
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503 headers = {
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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504 'Content-type': ct,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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505 'Content-length': str(len(body))
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506 }
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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507 return Request(self.url, body, headers)
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508
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509 def search(self, terms, operator=None):
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510 if isinstance(terms, string_types):
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511 terms = {'name': terms}
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512 rpc_proxy = ServerProxy(self.url, timeout=3.0)
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513 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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514 return rpc_proxy.search(terms, operator or 'and')
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515 finally:
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516 rpc_proxy('close')()