Method: Aws::S3Interface#store_object_and_verify

Defined in:

lib/s3/s3_interface.rb

#store_object_and_verify(params) ⇒ Object

Identical in function to store_object, but requires verification that the returned ETag is identical to the checksum passed in by the user as the ‘md5’ argument. If the check passes, returns the response metadata with the “verified_md5” field set true. Raises an exception if the checksums conflict. This call is implemented as a wrapper around store_object and the user may gain different semantics by creating a custom wrapper.

s3.store_object_and_verify(:bucket => “foobucket”, :key => “foo”, :md5 => “a507841b1bc8115094b00bbe8c1b2954”, :data => “polemonium” )

=> {"x-amz-id-2"=>"IZN3XsH4FlBU0+XYkFTfHwaiF1tNzrm6dIW2EM/cthKvl71nldfVC0oVQyydzWpb",
    "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"",
    "date"=>"Mon, 29 Sep 2008 18:38:32 GMT",
    :verified_md5=>true,
    "x-amz-request-id"=>"E8D7EA4FE00F5DF7",
    "server"=>"AmazonS3",
    "content-length"=>"0"}

s3.store_object_and_verify(:bucket => “foobucket”, :key => “foo”, :md5 => “a507841b1bc8115094b00bbe8c1b2953”, :data => “polemonium” )

Aws::AwsError: Uploaded object failed MD5 checksum verification: {"x-amz-id-2"=>"HTxVtd2bf7UHHDn+WzEH43MkEjFZ26xuYvUzbstkV6nrWvECRWQWFSx91z/bl03n",
                                                                       "etag"=>"\"a507841b1bc8115094b00bbe8c1b2954\"",
                                                                       "date"=>"Mon, 29 Sep 2008 18:38:41 GMT",
                                                                       :verified_md5=>false,
                                                                       "x-amz-request-id"=>"0D7ADE09F42606F2",
                                                                       "server"=>"AmazonS3",
                                                                       "content-length"=>"0"}

# File 'lib/s3/s3_interface.rb', line 508

def store_object_and_verify(params)
  AwsUtils.mandatory_arguments([:md5], params)
  r = store_object(params)
  r[:verified_md5] ? (return r) : (raise AwsError.new("Uploaded object failed MD5 checksum verification: #{r.inspect}"))
end