Method: Fog::Storage::AWS::Mock#get_bucket_object_versions

Defined in:
lib/fog/aws/requests/storage/get_bucket_object_versions.rb

#get_bucket_object_versions(bucket_name, options = {}) ⇒ Object 


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# File 'lib/fog/aws/requests/storage/get_bucket_object_versions.rb', line 74

def get_bucket_object_versions(bucket_name, options = {})
  delimiter, key_marker, max_keys, prefix, version_id_marker = \
    options['delimiter'], options['key-marker'], options['max-keys'],options['prefix'],options['version-id-marker']

  unless bucket_name
    raise ArgumentError.new('bucket_name is required')
  end

  response = Excon::Response.new

  # Invalid arguments.
  if version_id_marker && !key_marker
    response.status = 400
    response.body = {
      'Error' => {
        'Code' => 'InvalidArgument',
        'Message' => 'A version-id marker cannot be specified without a key marker.',
        'ArgumentValue' => version_id_marker,
        'RequestId' => Fog::Mock.random_hex(16),
        'HostId' => Fog::Mock.random_base64(65)
      }
    }

  # Valid case.
  # TODO: (nirvdrum 12/15/11) It's not clear to me how to actually use version-id-marker, so I didn't implement it below.
  elsif bucket = self.data[:buckets][bucket_name]
    # We need to order results by S3 key, but since our data store is key => [versions], we want to ensure the integrity
    # of the versions as well.  So, sort the keys, then fetch the versions, and then combine them all as a sorted list by
    # flattening the results.
    contents = bucket[:objects].keys.sort.collect { |key| bucket[:objects][key] }.flatten.reject do |object|
        (prefix      && object['Key'][0...prefix.length] != prefix) ||
        (key_marker  && object['Key'] <= key_marker) ||
        (delimiter   && object['Key'][(prefix ? prefix.length : 0)..-1].include?(delimiter) \
                     && common_prefixes << object['Key'].sub(/^(#{prefix}[^#{delimiter}]+.).*/, '\1'))
      end.map do |object|
        if object.has_key?(:delete_marker)
          tag_name = 'DeleteMarker'
          extracted_attrs = ['Key', 'VersionId']
        else
          tag_name = 'Version'
          extracted_attrs = ['ETag', 'Key', 'StorageClass', 'VersionId']
        end

        data = {}
        data[tag_name] = object.reject { |key, value| !extracted_attrs.include?(key) }
        data[tag_name].merge!({
          'LastModified' => Time.parse(object['Last-Modified']),
          'Owner'        => bucket['Owner'],
          'IsLatest'     => object == bucket[:objects][object['Key']].first
        })

        data[tag_name]['Size'] = object['Content-Length'].to_i if tag_name == 'Version'
      data
    end

    max_keys = max_keys || 1000
    size = [max_keys, 1000].min
    truncated_contents = contents[0...size]

    response.status = 200
    response.body = {
      'Versions'        => truncated_contents,
      'IsTruncated'     => truncated_contents.size != contents.size,
      'KeyMarker'       => key_marker,
      'VersionIdMarker' => version_id_marker,
      'MaxKeys'         => max_keys,
      'Name'            => bucket['Name'],
      'Prefix'          => prefix
    }
    if max_keys && max_keys < response.body['Versions'].length
        response.body['IsTruncated'] = true
        response.body['Versions'] = response.body['Versions'][0...max_keys]
    end

  # Missing bucket case.
  else
    response.status = 404
    response.body = {
      'Error' => {
        'Code' => 'NoSuchBucket',
        'Message' => 'The specified bucket does not exist',
        'BucketName' => bucket_name,
        'RequestId' => Fog::Mock.random_hex(16),
        'HostId' => Fog::Mock.random_base64(65)
      }
    }

    raise(Excon::Errors.status_error({:expects => 200}, response))
  end
  response
end