Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/boto/gs/key.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 # Copyright 2010 Google Inc.
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2 #
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3 # Permission is hereby granted, free of charge, to any person obtaining a
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4 # copy of this software and associated documentation files (the
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5 # "Software"), to deal in the Software without restriction, including
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6 # without limitation the rights to use, copy, modify, merge, publish, dis-
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7 # tribute, sublicense, and/or sell copies of the Software, and to permit
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8 # persons to whom the Software is furnished to do so, subject to the fol-
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9 # lowing conditions:
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10 #
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11 # The above copyright notice and this permission notice shall be included
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12 # in all copies or substantial portions of the Software.
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13 #
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14 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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15 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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16 # ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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17 # SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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18 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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20 # IN THE SOFTWARE.
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21
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22 import base64
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23 import binascii
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24 import os
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25 import re
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26
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27 from boto.compat import StringIO
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28 from boto.exception import BotoClientError
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29 from boto.s3.key import Key as S3Key
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30 from boto.s3.keyfile import KeyFile
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31 from boto.utils import compute_hash
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32 from boto.utils import get_utf8_value
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33
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34 class Key(S3Key):
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35 """
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36 Represents a key (object) in a GS bucket.
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37
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38 :ivar bucket: The parent :class:`boto.gs.bucket.Bucket`.
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39 :ivar name: The name of this Key object.
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40 :ivar metadata: A dictionary containing user metadata that you
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41 wish to store with the object or that has been retrieved from
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42 an existing object.
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43 :ivar cache_control: The value of the `Cache-Control` HTTP header.
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44 :ivar content_type: The value of the `Content-Type` HTTP header.
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45 :ivar content_encoding: The value of the `Content-Encoding` HTTP header.
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46 :ivar content_disposition: The value of the `Content-Disposition` HTTP
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47 header.
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48 :ivar content_language: The value of the `Content-Language` HTTP header.
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49 :ivar etag: The `etag` associated with this object.
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50 :ivar last_modified: The string timestamp representing the last
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51 time this object was modified in GS.
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52 :ivar owner: The ID of the owner of this object.
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53 :ivar storage_class: The storage class of the object. Currently, one of:
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54 STANDARD | DURABLE_REDUCED_AVAILABILITY.
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55 :ivar md5: The MD5 hash of the contents of the object.
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56 :ivar size: The size, in bytes, of the object.
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57 :ivar generation: The generation number of the object.
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58 :ivar metageneration: The generation number of the object metadata.
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59 :ivar encrypted: Whether the object is encrypted while at rest on
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60 the server.
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61 :ivar cloud_hashes: Dictionary of checksums as supplied by the storage
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62 provider.
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63 """
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64
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65 def __init__(self, bucket=None, name=None, generation=None):
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66 super(Key, self).__init__(bucket=bucket, name=name)
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67 self.generation = generation
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68 self.meta_generation = None
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69 self.cloud_hashes = {}
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70 self.component_count = None
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71
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72 def __repr__(self):
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73 if self.generation and self.metageneration:
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74 ver_str = '#%s.%s' % (self.generation, self.metageneration)
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75 else:
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76 ver_str = ''
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77 if self.bucket:
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78 return '<Key: %s,%s%s>' % (self.bucket.name, self.name, ver_str)
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79 else:
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80 return '<Key: None,%s%s>' % (self.name, ver_str)
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81
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82 def endElement(self, name, value, connection):
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83 if name == 'Key':
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84 self.name = value
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85 elif name == 'ETag':
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86 self.etag = value
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87 elif name == 'IsLatest':
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88 if value == 'true':
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89 self.is_latest = True
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90 else:
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91 self.is_latest = False
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92 elif name == 'LastModified':
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93 self.last_modified = value
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94 elif name == 'Size':
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95 self.size = int(value)
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96 elif name == 'StorageClass':
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97 self.storage_class = value
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98 elif name == 'Owner':
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99 pass
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100 elif name == 'VersionId':
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101 self.version_id = value
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102 elif name == 'Generation':
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103 self.generation = value
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104 elif name == 'MetaGeneration':
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105 self.metageneration = value
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106 else:
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107 setattr(self, name, value)
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108
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109 def handle_version_headers(self, resp, force=False):
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110 self.metageneration = resp.getheader('x-goog-metageneration', None)
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111 self.generation = resp.getheader('x-goog-generation', None)
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112
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113 def handle_restore_headers(self, response):
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114 return
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115
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116 def handle_addl_headers(self, headers):
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117 for key, value in headers:
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118 if key == 'x-goog-hash':
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119 for hash_pair in value.split(','):
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120 alg, b64_digest = hash_pair.strip().split('=', 1)
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121 self.cloud_hashes[alg] = binascii.a2b_base64(b64_digest)
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122 elif key == 'x-goog-component-count':
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123 self.component_count = int(value)
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124 elif key == 'x-goog-generation':
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125 self.generation = value
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126 # Use x-goog-stored-content-encoding and
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127 # x-goog-stored-content-length to indicate original content length
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128 # and encoding, which are transcoding-invariant (so are preferable
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129 # over using content-encoding and size headers).
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130 elif key == 'x-goog-stored-content-encoding':
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131 self.content_encoding = value
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132 elif key == 'x-goog-stored-content-length':
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133 self.size = int(value)
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134
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135 def open_read(self, headers=None, query_args='',
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136 override_num_retries=None, response_headers=None):
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137 """
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138 Open this key for reading
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139
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140 :type headers: dict
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141 :param headers: Headers to pass in the web request
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142
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143 :type query_args: string
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144 :param query_args: Arguments to pass in the query string
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145 (ie, 'torrent')
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146
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147 :type override_num_retries: int
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148 :param override_num_retries: If not None will override configured
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149 num_retries parameter for underlying GET.
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150
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151 :type response_headers: dict
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152 :param response_headers: A dictionary containing HTTP
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153 headers/values that will override any headers associated
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154 with the stored object in the response. See
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155 http://goo.gl/EWOPb for details.
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156 """
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157 # For GCS we need to include the object generation in the query args.
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158 # The rest of the processing is handled in the parent class.
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159 if self.generation:
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160 if query_args:
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161 query_args += '&'
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162 query_args += 'generation=%s' % self.generation
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163 super(Key, self).open_read(headers=headers, query_args=query_args,
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164 override_num_retries=override_num_retries,
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165 response_headers=response_headers)
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166
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167 def get_file(self, fp, headers=None, cb=None, num_cb=10,
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168 torrent=False, version_id=None, override_num_retries=None,
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169 response_headers=None, hash_algs=None):
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170 query_args = None
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171 if self.generation:
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172 query_args = ['generation=%s' % self.generation]
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173 self._get_file_internal(fp, headers=headers, cb=cb, num_cb=num_cb,
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174 override_num_retries=override_num_retries,
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175 response_headers=response_headers,
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176 hash_algs=hash_algs,
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177 query_args=query_args)
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178
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179 def get_contents_to_file(self, fp, headers=None,
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180 cb=None, num_cb=10,
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181 torrent=False,
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182 version_id=None,
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183 res_download_handler=None,
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184 response_headers=None,
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185 hash_algs=None):
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186 """
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187 Retrieve an object from GCS using the name of the Key object as the
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188 key in GCS. Write the contents of the object to the file pointed
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189 to by 'fp'.
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190
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191 :type fp: File -like object
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192 :param fp:
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193
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194 :type headers: dict
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195 :param headers: additional HTTP headers that will be sent with
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196 the GET request.
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197
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198 :type cb: function
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199 :param cb: a callback function that will be called to report
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200 progress on the upload. The callback should accept two
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201 integer parameters, the first representing the number of
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202 bytes that have been successfully transmitted to GCS and
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203 the second representing the size of the to be transmitted
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204 object.
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205
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206 :type cb: int
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207 :param num_cb: (optional) If a callback is specified with the
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208 cb parameter this parameter determines the granularity of
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209 the callback by defining the maximum number of times the
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210 callback will be called during the file transfer.
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211
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212 :type torrent: bool
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213 :param torrent: If True, returns the contents of a torrent
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214 file as a string.
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215
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216 :type res_upload_handler: ResumableDownloadHandler
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217 :param res_download_handler: If provided, this handler will
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218 perform the download.
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219
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220 :type response_headers: dict
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221 :param response_headers: A dictionary containing HTTP
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222 headers/values that will override any headers associated
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223 with the stored object in the response. See
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224 http://goo.gl/sMkcC for details.
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225 """
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226 if self.bucket is not None:
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227 if res_download_handler:
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228 res_download_handler.get_file(self, fp, headers, cb, num_cb,
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229 torrent=torrent,
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230 version_id=version_id,
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231 hash_algs=hash_algs)
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232 else:
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233 self.get_file(fp, headers, cb, num_cb, torrent=torrent,
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234 version_id=version_id,
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235 response_headers=response_headers,
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236 hash_algs=hash_algs)
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237
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238 def compute_hash(self, fp, algorithm, size=None):
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239 """
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240 :type fp: file
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241 :param fp: File pointer to the file to hash. The file
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242 pointer will be reset to the same position before the
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243 method returns.
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244
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245 :type algorithm: zero-argument constructor for hash objects that
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246 implements update() and digest() (e.g. hashlib.md5)
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247
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248 :type size: int
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249 :param size: (optional) The Maximum number of bytes to read
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250 from the file pointer (fp). This is useful when uploading
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251 a file in multiple parts where the file is being split
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252 in place into different parts. Less bytes may be available.
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253 """
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254 hex_digest, b64_digest, data_size = compute_hash(
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255 fp, size=size, hash_algorithm=algorithm)
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256 # The internal implementation of compute_hash() needs to return the
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257 # data size, but we don't want to return that value to the external
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258 # caller because it changes the class interface (i.e. it might
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259 # break some code), so we consume the third tuple value here and
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260 # return the remainder of the tuple to the caller, thereby preserving
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261 # the existing interface.
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262 self.size = data_size
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263 return (hex_digest, b64_digest)
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264
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265 def send_file(self, fp, headers=None, cb=None, num_cb=10,
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266 query_args=None, chunked_transfer=False, size=None,
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267 hash_algs=None):
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268 """
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269 Upload a file to GCS.
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270
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271 :type fp: file
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272 :param fp: The file pointer to upload. The file pointer must
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273 point point at the offset from which you wish to upload.
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274 ie. if uploading the full file, it should point at the
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275 start of the file. Normally when a file is opened for
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276 reading, the fp will point at the first byte. See the
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277 bytes parameter below for more info.
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278
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279 :type headers: dict
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280 :param headers: The headers to pass along with the PUT request
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281
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282 :type num_cb: int
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283 :param num_cb: (optional) If a callback is specified with the
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284 cb parameter this parameter determines the granularity of
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285 the callback by defining the maximum number of times the
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286 callback will be called during the file
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287 transfer. Providing a negative integer will cause your
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288 callback to be called with each buffer read.
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289
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290 :type query_args: string
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291 :param query_args: Arguments to pass in the query string.
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292
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293 :type chunked_transfer: boolean
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294 :param chunked_transfer: (optional) If true, we use chunked
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295 Transfer-Encoding.
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296
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297 :type size: int
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298 :param size: (optional) The Maximum number of bytes to read
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299 from the file pointer (fp). This is useful when uploading
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300 a file in multiple parts where you are splitting the file
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301 up into different ranges to be uploaded. If not specified,
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302 the default behaviour is to read all bytes from the file
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303 pointer. Less bytes may be available.
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304
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305 :type hash_algs: dictionary
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306 :param hash_algs: (optional) Dictionary of hash algorithms and
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307 corresponding hashing class that implements update() and digest().
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308 Defaults to {'md5': hashlib.md5}.
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309 """
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310 self._send_file_internal(fp, headers=headers, cb=cb, num_cb=num_cb,
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311 query_args=query_args,
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312 chunked_transfer=chunked_transfer, size=size,
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313 hash_algs=hash_algs)
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314
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315 def delete(self, headers=None):
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316 return self.bucket.delete_key(self.name, version_id=self.version_id,
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317 generation=self.generation,
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318 headers=headers)
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319
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320 def add_email_grant(self, permission, email_address):
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321 """
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322 Convenience method that provides a quick way to add an email grant to a
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323 key. This method retrieves the current ACL, creates a new grant based on
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324 the parameters passed in, adds that grant to the ACL and then PUT's the
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325 new ACL back to GS.
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326
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327 :type permission: string
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328 :param permission: The permission being granted. Should be one of:
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329 READ|FULL_CONTROL
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330 See http://code.google.com/apis/storage/docs/developer-guide.html#authorization
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331 for more details on permissions.
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332
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333 :type email_address: string
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334 :param email_address: The email address associated with the Google
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335 account to which you are granting the permission.
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336 """
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337 acl = self.get_acl()
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338 acl.add_email_grant(permission, email_address)
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339 self.set_acl(acl)
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340
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341 def add_user_grant(self, permission, user_id):
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342 """
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343 Convenience method that provides a quick way to add a canonical user
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344 grant to a key. This method retrieves the current ACL, creates a new
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345 grant based on the parameters passed in, adds that grant to the ACL and
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346 then PUT's the new ACL back to GS.
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347
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348 :type permission: string
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349 :param permission: The permission being granted. Should be one of:
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350 READ|FULL_CONTROL
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351 See http://code.google.com/apis/storage/docs/developer-guide.html#authorization
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352 for more details on permissions.
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353
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354 :type user_id: string
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355 :param user_id: The canonical user id associated with the GS account to
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356 which you are granting the permission.
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357 """
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358 acl = self.get_acl()
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359 acl.add_user_grant(permission, user_id)
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360 self.set_acl(acl)
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361
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362 def add_group_email_grant(self, permission, email_address, headers=None):
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363 """
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364 Convenience method that provides a quick way to add an email group
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365 grant to a key. This method retrieves the current ACL, creates a new
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366 grant based on the parameters passed in, adds that grant to the ACL and
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367 then PUT's the new ACL back to GS.
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368
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369 :type permission: string
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370 :param permission: The permission being granted. Should be one of:
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371 READ|FULL_CONTROL
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372 See http://code.google.com/apis/storage/docs/developer-guide.html#authorization
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373 for more details on permissions.
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374
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375 :type email_address: string
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376 :param email_address: The email address associated with the Google
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377 Group to which you are granting the permission.
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378 """
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379 acl = self.get_acl(headers=headers)
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380 acl.add_group_email_grant(permission, email_address)
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381 self.set_acl(acl, headers=headers)
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382
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383 def add_group_grant(self, permission, group_id):
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384 """
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385 Convenience method that provides a quick way to add a canonical group
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386 grant to a key. This method retrieves the current ACL, creates a new
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387 grant based on the parameters passed in, adds that grant to the ACL and
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388 then PUT's the new ACL back to GS.
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389
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390 :type permission: string
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391 :param permission: The permission being granted. Should be one of:
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392 READ|FULL_CONTROL
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393 See http://code.google.com/apis/storage/docs/developer-guide.html#authorization
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394 for more details on permissions.
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395
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396 :type group_id: string
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397 :param group_id: The canonical group id associated with the Google
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398 Groups account you are granting the permission to.
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399 """
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400 acl = self.get_acl()
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401 acl.add_group_grant(permission, group_id)
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402 self.set_acl(acl)
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403
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404 def set_contents_from_file(self, fp, headers=None, replace=True,
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405 cb=None, num_cb=10, policy=None, md5=None,
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406 res_upload_handler=None, size=None, rewind=False,
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407 if_generation=None):
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408 """
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409 Store an object in GS using the name of the Key object as the
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410 key in GS and the contents of the file pointed to by 'fp' as the
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411 contents.
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412
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413 :type fp: file
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414 :param fp: The file whose contents are to be uploaded.
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415
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416 :type headers: dict
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417 :param headers: (optional) Additional HTTP headers to be sent with the
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418 PUT request.
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419
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420 :type replace: bool
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421 :param replace: (optional) If this parameter is False, the method will
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422 first check to see if an object exists in the bucket with the same
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423 key. If it does, it won't overwrite it. The default value is True
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424 which will overwrite the object.
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425
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426 :type cb: function
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427 :param cb: (optional) Callback function that will be called to report
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428 progress on the upload. The callback should accept two integer
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429 parameters, the first representing the number of bytes that have
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430 been successfully transmitted to GS and the second representing the
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431 total number of bytes that need to be transmitted.
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432
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433 :type num_cb: int
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434 :param num_cb: (optional) If a callback is specified with the cb
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435 parameter, this parameter determines the granularity of the callback
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436 by defining the maximum number of times the callback will be called
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437 during the file transfer.
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438
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439 :type policy: :class:`boto.gs.acl.CannedACLStrings`
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440 :param policy: (optional) A canned ACL policy that will be applied to
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441 the new key in GS.
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442
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443 :type md5: tuple
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444 :param md5: (optional) A tuple containing the hexdigest version of the
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445 MD5 checksum of the file as the first element and the
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446 Base64-encoded version of the plain checksum as the second element.
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447 This is the same format returned by the compute_md5 method.
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448
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449 If you need to compute the MD5 for any reason prior to upload, it's
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450 silly to have to do it twice so this param, if present, will be
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451 used as the MD5 values of the file. Otherwise, the checksum will be
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452 computed.
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453
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454 :type res_upload_handler: :py:class:`boto.gs.resumable_upload_handler.ResumableUploadHandler`
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455 :param res_upload_handler: (optional) If provided, this handler will
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456 perform the upload.
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457
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458 :type size: int
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459 :param size: (optional) The Maximum number of bytes to read from the
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460 file pointer (fp). This is useful when uploading a file in multiple
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461 parts where you are splitting the file up into different ranges to
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462 be uploaded. If not specified, the default behaviour is to read all
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463 bytes from the file pointer. Less bytes may be available.
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464
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465 Notes:
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466
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467 1. The "size" parameter currently cannot be used when a
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468 resumable upload handler is given but is still useful for
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469 uploading part of a file as implemented by the parent class.
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470 2. At present Google Cloud Storage does not support multipart
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471 uploads.
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472
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473 :type rewind: bool
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474 :param rewind: (optional) If True, the file pointer (fp) will be
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475 rewound to the start before any bytes are read from it. The default
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476 behaviour is False which reads from the current position of the
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477 file pointer (fp).
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478
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479 :type if_generation: int
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480 :param if_generation: (optional) If set to a generation number, the
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481 object will only be written to if its current generation number is
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482 this value. If set to the value 0, the object will only be written
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483 if it doesn't already exist.
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484
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485 :rtype: int
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486 :return: The number of bytes written to the key.
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487
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488 TODO: At some point we should refactor the Bucket and Key classes,
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489 to move functionality common to all providers into a parent class,
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490 and provider-specific functionality into subclasses (rather than
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491 just overriding/sharing code the way it currently works).
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492 """
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493 provider = self.bucket.connection.provider
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494 if res_upload_handler and size:
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495 # could use size instead of file_length if provided but...
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496 raise BotoClientError(
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497 '"size" param not supported for resumable uploads.')
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498 headers = headers or {}
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bcclaywell
parents:
diff changeset
499 if policy:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
500 headers[provider.acl_header] = policy
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bcclaywell
parents:
diff changeset
501
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bcclaywell
parents:
diff changeset
502 if rewind:
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bcclaywell
parents:
diff changeset
503 # caller requests reading from beginning of fp.
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bcclaywell
parents:
diff changeset
504 fp.seek(0, os.SEEK_SET)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
505 else:
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bcclaywell
parents:
diff changeset
506 # The following seek/tell/seek logic is intended
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bcclaywell
parents:
diff changeset
507 # to detect applications using the older interface to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
508 # set_contents_from_file(), which automatically rewound the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
509 # file each time the Key was reused. This changed with commit
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
510 # 14ee2d03f4665fe20d19a85286f78d39d924237e, to support uploads
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
511 # split into multiple parts and uploaded in parallel, and at
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
512 # the time of that commit this check was added because otherwise
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
513 # older programs would get a success status and upload an empty
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
514 # object. Unfortuantely, it's very inefficient for fp's implemented
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
515 # by KeyFile (used, for example, by gsutil when copying between
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
516 # providers). So, we skip the check for the KeyFile case.
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bcclaywell
parents:
diff changeset
517 # TODO: At some point consider removing this seek/tell/seek
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bcclaywell
parents:
diff changeset
518 # logic, after enough time has passed that it's unlikely any
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
519 # programs remain that assume the older auto-rewind interface.
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bcclaywell
parents:
diff changeset
520 if not isinstance(fp, KeyFile):
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parents:
diff changeset
521 spos = fp.tell()
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bcclaywell
parents:
diff changeset
522 fp.seek(0, os.SEEK_END)
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bcclaywell
parents:
diff changeset
523 if fp.tell() == spos:
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bcclaywell
parents:
diff changeset
524 fp.seek(0, os.SEEK_SET)
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bcclaywell
parents:
diff changeset
525 if fp.tell() != spos:
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bcclaywell
parents:
diff changeset
526 # Raise an exception as this is likely a programming
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
527 # error whereby there is data before the fp but nothing
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bcclaywell
parents:
diff changeset
528 # after it.
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bcclaywell
parents:
diff changeset
529 fp.seek(spos)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
530 raise AttributeError('fp is at EOF. Use rewind option '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
531 'or seek() to data start.')
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
532 # seek back to the correct position.
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bcclaywell
parents:
diff changeset
533 fp.seek(spos)
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bcclaywell
parents:
diff changeset
534
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bcclaywell
parents:
diff changeset
535 if hasattr(fp, 'name'):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
536 self.path = fp.name
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bcclaywell
parents:
diff changeset
537 if self.bucket is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
538 if isinstance(fp, KeyFile):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
539 # Avoid EOF seek for KeyFile case as it's very inefficient.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
540 key = fp.getkey()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
541 size = key.size - fp.tell()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
542 self.size = size
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bcclaywell
parents:
diff changeset
543 # At present both GCS and S3 use MD5 for the etag for
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
544 # non-multipart-uploaded objects. If the etag is 32 hex
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
545 # chars use it as an MD5, to avoid having to read the file
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
546 # twice while transferring.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
547 if (re.match('^"[a-fA-F0-9]{32}"$', key.etag)):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
548 etag = key.etag.strip('"')
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bcclaywell
parents:
diff changeset
549 md5 = (etag, base64.b64encode(binascii.unhexlify(etag)))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
550 if size:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
551 self.size = size
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
552 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
553 # If md5 is provided, still need to size so
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
554 # calculate based on bytes to end of content
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bcclaywell
parents:
diff changeset
555 spos = fp.tell()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
556 fp.seek(0, os.SEEK_END)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
557 self.size = fp.tell() - spos
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bcclaywell
parents:
diff changeset
558 fp.seek(spos)
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bcclaywell
parents:
diff changeset
559 size = self.size
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bcclaywell
parents:
diff changeset
560
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bcclaywell
parents:
diff changeset
561 if md5 is None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
562 md5 = self.compute_md5(fp, size)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
563 self.md5 = md5[0]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
564 self.base64md5 = md5[1]
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bcclaywell
parents:
diff changeset
565
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bcclaywell
parents:
diff changeset
566 if self.name is None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
567 self.name = self.md5
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bcclaywell
parents:
diff changeset
568
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
569 if not replace:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
570 if self.bucket.lookup(self.name):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
571 return
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
572
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
573 if if_generation is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
574 headers['x-goog-if-generation-match'] = str(if_generation)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
575
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
576 if res_upload_handler:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
577 res_upload_handler.send_file(self, fp, headers, cb, num_cb)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
578 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
579 # Not a resumable transfer so use basic send_file mechanism.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
580 self.send_file(fp, headers, cb, num_cb, size=size)
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bcclaywell
parents:
diff changeset
581
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
582 def set_contents_from_filename(self, filename, headers=None, replace=True,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
583 cb=None, num_cb=10, policy=None, md5=None,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
584 reduced_redundancy=None,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
585 res_upload_handler=None,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
586 if_generation=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
587 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
588 Store an object in GS using the name of the Key object as the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
589 key in GS and the contents of the file named by 'filename'.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
590 See set_contents_from_file method for details about the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
591 parameters.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
592
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
593 :type filename: string
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
594 :param filename: The name of the file that you want to put onto GS.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
595
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
596 :type headers: dict
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
597 :param headers: (optional) Additional headers to pass along with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
598 request to GS.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
599
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
600 :type replace: bool
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
601 :param replace: (optional) If True, replaces the contents of the file
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
602 if it already exists.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
603
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
604 :type cb: function
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
605 :param cb: (optional) Callback function that will be called to report
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
606 progress on the upload. The callback should accept two integer
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
607 parameters, the first representing the number of bytes that have
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
608 been successfully transmitted to GS and the second representing the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
609 total number of bytes that need to be transmitted.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
610
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
611 :type num_cb: int
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
612 :param num_cb: (optional) If a callback is specified with the cb
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
613 parameter this parameter determines the granularity of the callback
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
614 by defining the maximum number of times the callback will be called
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
615 during the file transfer.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
616
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
617 :type policy: :py:attribute:`boto.gs.acl.CannedACLStrings`
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
618 :param policy: (optional) A canned ACL policy that will be applied to
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
619 the new key in GS.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
620
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
621 :type md5: tuple
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
622 :param md5: (optional) A tuple containing the hexdigest version of the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
623 MD5 checksum of the file as the first element and the
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624 Base64-encoded version of the plain checksum as the second element.
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625 This is the same format returned by the compute_md5 method.
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626
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627 If you need to compute the MD5 for any reason prior to upload, it's
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
628 silly to have to do it twice so this param, if present, will be
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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629 used as the MD5 values of the file. Otherwise, the checksum will be
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
630 computed.
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631
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632 :type res_upload_handler: :py:class:`boto.gs.resumable_upload_handler.ResumableUploadHandler`
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633 :param res_upload_handler: (optional) If provided, this handler will
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diff changeset
634 perform the upload.
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635
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636 :type if_generation: int
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diff changeset
637 :param if_generation: (optional) If set to a generation number, the
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638 object will only be written to if its current generation number is
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639 this value. If set to the value 0, the object will only be written
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640 if it doesn't already exist.
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641 """
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642 # Clear out any previously computed hashes, since we are setting the
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643 # content.
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644 self.local_hashes = {}
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645
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646 with open(filename, 'rb') as fp:
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647 self.set_contents_from_file(fp, headers, replace, cb, num_cb,
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648 policy, md5, res_upload_handler,
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649 if_generation=if_generation)
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650
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651 def set_contents_from_string(self, s, headers=None, replace=True,
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652 cb=None, num_cb=10, policy=None, md5=None,
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653 if_generation=None):
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654 """
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655 Store an object in GCS using the name of the Key object as the
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656 key in GCS and the string 's' as the contents.
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657 See set_contents_from_file method for details about the
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658 parameters.
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659
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660 :type headers: dict
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661 :param headers: Additional headers to pass along with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
662 request to AWS.
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663
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664 :type replace: bool
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665 :param replace: If True, replaces the contents of the file if
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666 it already exists.
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667
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668 :type cb: function
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669 :param cb: a callback function that will be called to report
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diff changeset
670 progress on the upload. The callback should accept
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diff changeset
671 two integer parameters, the first representing the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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672 number of bytes that have been successfully
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673 transmitted to GCS and the second representing the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
674 size of the to be transmitted object.
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675
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676 :type cb: int
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677 :param num_cb: (optional) If a callback is specified with
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678 the cb parameter this parameter determines the
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679 granularity of the callback by defining
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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680 the maximum number of times the callback will
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681 be called during the file transfer.
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682
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683 :type policy: :class:`boto.gs.acl.CannedACLStrings`
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diff changeset
684 :param policy: A canned ACL policy that will be applied to the
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diff changeset
685 new key in GCS.
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diff changeset
686
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687 :type md5: A tuple containing the hexdigest version of the MD5
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
688 checksum of the file as the first element and the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
689 Base64-encoded version of the plain checksum as the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
690 second element. This is the same format returned by
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
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diff changeset
691 the compute_md5 method.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
692 :param md5: If you need to compute the MD5 for any reason prior
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
693 to upload, it's silly to have to do it twice so this
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
694 param, if present, will be used as the MD5 values
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
695 of the file. Otherwise, the checksum will be computed.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
696
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
697 :type if_generation: int
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
698 :param if_generation: (optional) If set to a generation number, the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
699 object will only be written to if its current generation number is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
700 this value. If set to the value 0, the object will only be written
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
701 if it doesn't already exist.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
702 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
703
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
704 # Clear out any previously computed md5 hashes, since we are setting the content.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
705 self.md5 = None
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parents:
diff changeset
706 self.base64md5 = None
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parents:
diff changeset
707
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parents:
diff changeset
708 fp = StringIO(get_utf8_value(s))
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diff changeset
709 r = self.set_contents_from_file(fp, headers, replace, cb, num_cb,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
710 policy, md5,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
711 if_generation=if_generation)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
712 fp.close()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
713 return r
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parents:
diff changeset
714
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
715 def set_contents_from_stream(self, *args, **kwargs):
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diff changeset
716 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
717 Store an object using the name of the Key object as the key in
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
718 cloud and the contents of the data stream pointed to by 'fp' as
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
719 the contents.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
720
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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721 The stream object is not seekable and total size is not known.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
722 This has the implication that we can't specify the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
723 Content-Size and Content-MD5 in the header. So for huge
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
724 uploads, the delay in calculating MD5 is avoided but with a
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
725 penalty of inability to verify the integrity of the uploaded
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
726 data.
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parents:
diff changeset
727
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
728 :type fp: file
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
729 :param fp: the file whose contents are to be uploaded
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parents:
diff changeset
730
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parents:
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731 :type headers: dict
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
732 :param headers: additional HTTP headers to be sent with the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
733 PUT request.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
734
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735 :type replace: bool
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736 :param replace: If this parameter is False, the method will first check
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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737 to see if an object exists in the bucket with the same key. If it
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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738 does, it won't overwrite it. The default value is True which will
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
739 overwrite the object.
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parents:
diff changeset
740
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
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741 :type cb: function
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742 :param cb: a callback function that will be called to report
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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743 progress on the upload. The callback should accept two integer
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
744 parameters, the first representing the number of bytes that have
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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diff changeset
745 been successfully transmitted to GS and the second representing the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
746 total number of bytes that need to be transmitted.
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diff changeset
747
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748 :type num_cb: int
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parents:
diff changeset
749 :param num_cb: (optional) If a callback is specified with the
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parents:
diff changeset
750 cb parameter, this parameter determines the granularity of
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
751 the callback by defining the maximum number of times the
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
752 callback will be called during the file transfer.
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parents:
diff changeset
753
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parents:
diff changeset
754 :type policy: :class:`boto.gs.acl.CannedACLStrings`
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bcclaywell
parents:
diff changeset
755 :param policy: A canned ACL policy that will be applied to the new key
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bcclaywell
parents:
diff changeset
756 in GS.
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parents:
diff changeset
757
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diff changeset
758 :type size: int
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
759 :param size: (optional) The Maximum number of bytes to read from
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
760 the file pointer (fp). This is useful when uploading a
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
761 file in multiple parts where you are splitting the file up
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
762 into different ranges to be uploaded. If not specified,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
763 the default behaviour is to read all bytes from the file
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
764 pointer. Less bytes may be available.
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bcclaywell
parents:
diff changeset
765
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parents:
diff changeset
766 :type if_generation: int
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bcclaywell
parents:
diff changeset
767 :param if_generation: (optional) If set to a generation number, the
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bcclaywell
parents:
diff changeset
768 object will only be written to if its current generation number is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
769 this value. If set to the value 0, the object will only be written
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bcclaywell
parents:
diff changeset
770 if it doesn't already exist.
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parents:
diff changeset
771 """
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bcclaywell
parents:
diff changeset
772 if_generation = kwargs.pop('if_generation', None)
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parents:
diff changeset
773 if if_generation is not None:
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parents:
diff changeset
774 headers = kwargs.get('headers', {})
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bcclaywell
parents:
diff changeset
775 headers['x-goog-if-generation-match'] = str(if_generation)
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bcclaywell
parents:
diff changeset
776 kwargs['headers'] = headers
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parents:
diff changeset
777 super(Key, self).set_contents_from_stream(*args, **kwargs)
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parents:
diff changeset
778
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parents:
diff changeset
779 def set_acl(self, acl_or_str, headers=None, generation=None,
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bcclaywell
parents:
diff changeset
780 if_generation=None, if_metageneration=None):
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bcclaywell
parents:
diff changeset
781 """Sets the ACL for this object.
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bcclaywell
parents:
diff changeset
782
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bcclaywell
parents:
diff changeset
783 :type acl_or_str: string or :class:`boto.gs.acl.ACL`
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bcclaywell
parents:
diff changeset
784 :param acl_or_str: A canned ACL string (see
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
785 :data:`~.gs.acl.CannedACLStrings`) or an ACL object.
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bcclaywell
parents:
diff changeset
786
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bcclaywell
parents:
diff changeset
787 :type headers: dict
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parents:
diff changeset
788 :param headers: Additional headers to set during the request.
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parents:
diff changeset
789
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parents:
diff changeset
790 :type generation: int
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bcclaywell
parents:
diff changeset
791 :param generation: If specified, sets the ACL for a specific generation
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bcclaywell
parents:
diff changeset
792 of a versioned object. If not specified, the current version is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
793 modified.
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bcclaywell
parents:
diff changeset
794
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diff changeset
795 :type if_generation: int
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parents:
diff changeset
796 :param if_generation: (optional) If set to a generation number, the acl
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bcclaywell
parents:
diff changeset
797 will only be updated if its current generation number is this value.
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bcclaywell
parents:
diff changeset
798
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parents:
diff changeset
799 :type if_metageneration: int
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parents:
diff changeset
800 :param if_metageneration: (optional) If set to a metageneration number,
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bcclaywell
parents:
diff changeset
801 the acl will only be updated if its current metageneration number is
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bcclaywell
parents:
diff changeset
802 this value.
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parents:
diff changeset
803 """
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parents:
diff changeset
804 if self.bucket is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
805 self.bucket.set_acl(acl_or_str, self.name, headers=headers,
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bcclaywell
parents:
diff changeset
806 generation=generation,
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bcclaywell
parents:
diff changeset
807 if_generation=if_generation,
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bcclaywell
parents:
diff changeset
808 if_metageneration=if_metageneration)
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bcclaywell
parents:
diff changeset
809
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bcclaywell
parents:
diff changeset
810 def get_acl(self, headers=None, generation=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
811 """Returns the ACL of this object.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
812
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parents:
diff changeset
813 :param dict headers: Additional headers to set during the request.
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parents:
diff changeset
814
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parents:
diff changeset
815 :param int generation: If specified, gets the ACL for a specific
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
816 generation of a versioned object. If not specified, the current
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
817 version is returned.
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diff changeset
818
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diff changeset
819 :rtype: :class:`.gs.acl.ACL`
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diff changeset
820 """
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parents:
diff changeset
821 if self.bucket is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
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diff changeset
822 return self.bucket.get_acl(self.name, headers=headers,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
823 generation=generation)
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diff changeset
824
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parents:
diff changeset
825 def get_xml_acl(self, headers=None, generation=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
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diff changeset
826 """Returns the ACL string of this object.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
827
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828 :param dict headers: Additional headers to set during the request.
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parents:
diff changeset
829
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parents:
diff changeset
830 :param int generation: If specified, gets the ACL for a specific
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
831 generation of a versioned object. If not specified, the current
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
832 version is returned.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
833
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bcclaywell
parents:
diff changeset
834 :rtype: str
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bcclaywell
parents:
diff changeset
835 """
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bcclaywell
parents:
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836 if self.bucket is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
837 return self.bucket.get_xml_acl(self.name, headers=headers,
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bcclaywell
parents:
diff changeset
838 generation=generation)
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parents:
diff changeset
839
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diff changeset
840 def set_xml_acl(self, acl_str, headers=None, generation=None,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
841 if_generation=None, if_metageneration=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
842 """Sets this objects's ACL to an XML string.
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bcclaywell
parents:
diff changeset
843
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
844 :type acl_str: string
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
845 :param acl_str: A string containing the ACL XML.
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bcclaywell
parents:
diff changeset
846
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bcclaywell
parents:
diff changeset
847 :type headers: dict
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parents:
diff changeset
848 :param headers: Additional headers to set during the request.
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parents:
diff changeset
849
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parents:
diff changeset
850 :type generation: int
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parents:
diff changeset
851 :param generation: If specified, sets the ACL for a specific generation
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
852 of a versioned object. If not specified, the current version is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
853 modified.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
854
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parents:
diff changeset
855 :type if_generation: int
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
856 :param if_generation: (optional) If set to a generation number, the acl
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
857 will only be updated if its current generation number is this value.
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bcclaywell
parents:
diff changeset
858
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
859 :type if_metageneration: int
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
860 :param if_metageneration: (optional) If set to a metageneration number,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
861 the acl will only be updated if its current metageneration number is
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
862 this value.
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
863 """
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
864 if self.bucket is not None:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
865 return self.bucket.set_xml_acl(acl_str, self.name, headers=headers,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
866 generation=generation,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
867 if_generation=if_generation,
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parents:
diff changeset
868 if_metageneration=if_metageneration)
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parents:
diff changeset
869
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parents:
diff changeset
870 def set_canned_acl(self, acl_str, headers=None, generation=None,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
871 if_generation=None, if_metageneration=None):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
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parents:
diff changeset
872 """Sets this objects's ACL using a predefined (canned) value.
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bcclaywell
parents:
diff changeset
873
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
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874 :type acl_str: string
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875 :param acl_str: A canned ACL string. See
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876 :data:`~.gs.acl.CannedACLStrings`.
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877
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878 :type headers: dict
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879 :param headers: Additional headers to set during the request.
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880
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881 :type generation: int
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882 :param generation: If specified, sets the ACL for a specific generation
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883 of a versioned object. If not specified, the current version is
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884 modified.
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885
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886 :type if_generation: int
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887 :param if_generation: (optional) If set to a generation number, the acl
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888 will only be updated if its current generation number is this value.
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889
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890 :type if_metageneration: int
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891 :param if_metageneration: (optional) If set to a metageneration number,
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892 the acl will only be updated if its current metageneration number is
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893 this value.
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894 """
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895 if self.bucket is not None:
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896 return self.bucket.set_canned_acl(
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897 acl_str,
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898 self.name,
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899 headers=headers,
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900 generation=generation,
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901 if_generation=if_generation,
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902 if_metageneration=if_metageneration
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903 )
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904
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905 def compose(self, components, content_type=None, headers=None):
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906 """Create a new object from a sequence of existing objects.
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907
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908 The content of the object representing this Key will be the
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909 concatenation of the given object sequence. For more detail, visit
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910
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911 https://developers.google.com/storage/docs/composite-objects
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912
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913 :type components list of Keys
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914 :param components List of gs.Keys representing the component objects
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915
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916 :type content_type (optional) string
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917 :param content_type Content type for the new composite object.
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918 """
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919 compose_req = []
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920 for key in components:
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921 if key.bucket.name != self.bucket.name:
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922 raise BotoClientError(
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923 'GCS does not support inter-bucket composing')
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924
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925 generation_tag = ''
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926 if key.generation:
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927 generation_tag = ('<Generation>%s</Generation>'
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928 % str(key.generation))
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929 compose_req.append('<Component><Name>%s</Name>%s</Component>' %
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930 (key.name, generation_tag))
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931 compose_req_xml = ('<ComposeRequest>%s</ComposeRequest>' %
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932 ''.join(compose_req))
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933 headers = headers or {}
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934 if content_type:
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935 headers['Content-Type'] = content_type
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936 resp = self.bucket.connection.make_request(
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937 'PUT', get_utf8_value(self.bucket.name), get_utf8_value(self.name),
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938 headers=headers, query_args='compose',
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939 data=get_utf8_value(compose_req_xml))
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940 if resp.status < 200 or resp.status > 299:
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941 raise self.bucket.connection.provider.storage_response_error(
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942 resp.status, resp.reason, resp.read())
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943
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944 # Return the generation so that the result URI can be built with this
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945 # for automatic parallel uploads.
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946 return resp.getheader('x-goog-generation')