Class: ProxyReverse::BackendResponse

Inherits:
Object
  • Object
show all
Defined in:
lib/proxyreverse/backendresponse.rb

Instance Method Summary collapse

Constructor Details

#initialize(client, request) ⇒ BackendResponse 



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# File 'lib/proxyreverse/backendresponse.rb', line 3

def initialize(client, request)
  @parser = HTTP::ResponseParser.new(self)
  @client = client
  @request = request
end

Instance Method Details

#complete? ⇒ Boolean 



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# File 'lib/proxyreverse/backendresponse.rb', line 85

def complete?
  @complete
end

#on_body(chunk) ⇒ Object 



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# File 'lib/proxyreverse/backendresponse.rb', line 50

def on_body(chunk)
  @body << chunk
end

#on_headers_complete(env) ⇒ Object 



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# File 'lib/proxyreverse/backendresponse.rb', line 21

def on_headers_complete(env)
  @headers = @parser.headers
  @host = @headers['Host']
  @transferEncoding = 'identity'
  @contentEncoding = 'identity'

  if @client.options[:rewrite_domain] && @headers.has_key?('Location')
    @headers['Location'] = @headers['Location'].sub(/^#{@client.options['regex']}/, "\\1#{@request.host}")
  end

  if @headers.has_key?('Content-Encoding')
    @contentEncoding = @headers['Content-Encoding']
  end
  
  if @headers.has_key?('Transfer-Encoding')
    @transferEncoding = @headers['Transfer-Encoding']
  end
  @headers['Transfer-Encoding'] = 'chunked'
  @headers.delete('Content-Length')
   
  buf = "HTTP/#{@parser.http_version.join('.')} #{@parser.status_code} Message missing\r\n"
  @headers.each_pair do |name, value|
    buf << "#{name}: #{value}\r\n"
  end
  buf << "\r\n"
   
  @client.send_data(buf)
end

#on_message_begin ⇒ Object 



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# File 'lib/proxyreverse/backendresponse.rb', line 13

def on_message_begin
  @headers = nil
  @body = ''
  @transferEncoding = 'identity'
  @contentEncoding = 'identity'
  @complete = false
end

#on_message_complete ⇒ Object 



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# File 'lib/proxyreverse/backendresponse.rb', line 54

def on_message_complete
  case @contentEncoding
  when 'gzip'
    reader = Zlib::GzipReader.new(StringIO.new(@body))
    new_response_body = reader.read
    reader.close
    @body = new_response_body
  when 'deflate'
    @body = Zlib::Inflate.inflate(@body)
  end
  @body = @body.gsub(/#{@client.options['regex']}/, "\\1#{@request.host}")
  
  case @contentEncoding
  when 'gzip'
    new_response_body = ''
    writer = Zlib::GzipWriter.new(StringIO.new(new_response_body))
    writer.write(@body)
    writer.close
    @body = new_response_body
  when 'deflate'
    @body = Zlib::Deflate.deflate(@body)
  end
  
  if @body.length > 0
     @client.send_data "#{@body.length.to_s(16)}\r\n#{@body}\r\n0\r\n\r\n"
  else
     @client.send_data "0\r\n\r\n"
  end
  @complete = true
end

#receive_data(data) ⇒ Object 



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# File 'lib/proxyreverse/backendresponse.rb', line 9

def receive_data(data)
  @parser << data
end