Class: Excon::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/excon/connection.rb

Instance Method Summary collapse

Constructor Details

#initialize(url, params = {}) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/excon/connection.rb', line 4

def initialize(url, params = {})
  uri = URI.parse(url)
  @connection = {
    :headers  => {},
    :host     => uri.host,
    :path     => uri.path,
    :port     => uri.port,
    :query    => uri.query,
    :scheme   => uri.scheme
  }.merge!(params)
end

Instance Method Details

#request(params, &block) ⇒ Object 



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# File 'lib/excon/connection.rb', line 16

def request(params, &block)
  begin
    params[:path] ||= @connection[:path]
    unless params[:path][0..0] == '/'
      params[:path] = "/#{params[:path]}"
    end
    request = "#{params[:method]} #{params[:path]}?"
    for key, value in (params[:query] || @connection[:query] || {})
      request << "#{key}#{value && "=#{CGI.escape(value.to_s)}"}&"
    end
    request.chop!
    request << " HTTP/1.1\r\n"
    params[:headers] ||= @connection[:headers]
    params[:headers]['Host'] ||= params[:host] || @connection[:host]
    unless params[:headers]['Content-Length']
      params[:headers]['Content-Length'] = (params[:body] && params[:body].length) || 0
    end
    for key, value in params[:headers]
      request << "#{key}: #{value}\r\n"
    end
    request << "\r\n"
    socket.write(request)

    if params[:body] ||= @connection[:body]
      if params[:body].is_a?(String)
        socket.write(params[:body])
      else
        while chunk = params[:body].read(CHUNK_SIZE)
          socket.write(chunk)
        end
      end
    end

    response = Excon::Response.parse(socket, params, &block)
    if response.headers['Connection'] == 'close'
      reset_socket
    end
    response
  rescue => socket_error
    reset_socket
    raise(socket_error)
  end

  if params[:expects] && ![*params[:expects]].include?(response.status)
    reset_socket
    raise(Excon::Errors.status_error(params, response))
  else
    response
  end

rescue => request_error
  if params[:idempotent] &&
      (!request_error.is_a?(Excon::Errors::Error) || response.status != 404)
    retries_remaining ||= 4
    retries_remaining -= 1
    if retries_remaining > 0
      retry
    else
      raise(request_error)
    end
  else
    raise(request_error)
  end
end