Class: BraintreeHttp::Encoder

Inherits:
Object
  • Object
show all
Defined in:
lib/braintreehttp/encoder.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Encoder

Returns a new instance of Encoder.



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# File 'lib/braintreehttp/encoder.rb', line 11

def initialize
  @encoders = [Json.new, Text.new, Multipart.new, FormEncoded.new]
end

Instance Method Details

#_encoder(content_type) ⇒ Object 



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# File 'lib/braintreehttp/encoder.rb', line 63

def _encoder(content_type)
  idx = @encoders.index { |enc| enc.content_type.match(content_type) }

  @encoders[idx] if idx
end

#_extract_header(headers, key) ⇒ Object 



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# File 'lib/braintreehttp/encoder.rb', line 69

def _extract_header(headers, key)
  value = headers[key] || headers[key.downcase]
  value = value.first if value.kind_of?(Array)

  value
end

#deserialize_response(resp, headers) ⇒ Object

Raises:



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# File 'lib/braintreehttp/encoder.rb', line 39

def deserialize_response(resp, headers)
  raise UnsupportedEncodingError.new('HttpResponse did not have Content-Type header set') unless headers && (headers['content-type'] || headers['Content-Type'])

  content_type = _extract_header(headers, 'Content-Type')

  enc = _encoder(content_type)
  raise UnsupportedEncodingError.new("Unable to deserialize response with Content-Type #{content_type}. Supported decodings are #{supported_encodings}") unless enc

  content_encoding = _extract_header(headers, 'Content-Encoding')

  if content_encoding == 'gzip'
    buf = StringIO.new(resp, 'rb')
    reader = Zlib::GzipReader.new(buf)

    resp = reader.read
  end

  enc.decode(resp)
end

#serialize_request(req) ⇒ Object

Raises:



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# File 'lib/braintreehttp/encoder.rb', line 15

def serialize_request(req)
  raise UnsupportedEncodingError.new('HttpRequest did not have Content-Type header set') unless req.headers && (req.headers['content-type'] || req.headers['Content-Type'])

  content_type = _extract_header(req.headers, 'Content-Type')

  enc = _encoder(content_type)
  raise UnsupportedEncodingError.new("Unable to serialize request with Content-Type #{content_type}. Supported encodings are #{supported_encodings}") unless enc

  encoded = enc.encode(req)
  content_encoding = _extract_header(req.headers, 'Content-Encoding')

  if content_encoding == 'gzip'
    out = StringIO.new('w')
    writer = Zlib::GzipWriter.new(out)

    writer.write encoded
    writer.close

    encoded = out.string
  end

  encoded
end

#supported_encodings ⇒ Object 



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# File 'lib/braintreehttp/encoder.rb', line 59

def supported_encodings
  @encoders.map { |enc| enc.content_type.inspect }
end