class Excon::SSLSocket

def check_nonblock_support
  # backwards compatability for things lacking nonblock
  if !DEFAULT_NONBLOCK && params[:nonblock]
    $stderr.puts("Excon nonblock is not supported by your OpenSSL::SSL::SSLSocket")
    params[:nonblock] = false
  end
end

def connect
  check_nonblock_support
  super
end

def initialize(params = {}, proxy = nil)
  @params, @proxy = params, proxy
  check_nonblock_support
  super
  # create ssl context
  ssl_context = OpenSSL::SSL::SSLContext.new
  if params[:ssl_verify_peer]
    # turn verification on
    ssl_context.verify_mode = OpenSSL::SSL::VERIFY_PEER
    if params[:ssl_ca_path]
      ssl_context.ca_path = params[:ssl_ca_path]
    elsif params[:ssl_ca_file]
      ssl_context.ca_file = params[:ssl_ca_file]
    else
      # use default cert store
      store = OpenSSL::X509::Store.new
      store.set_default_paths
      ssl_context.cert_store = store
    end
  else
    # turn verification off
    ssl_context.verify_mode = OpenSSL::SSL::VERIFY_NONE
  end
  if @params.has_key?(:client_cert) && @params.has_key?(:client_key)
    ssl_context.cert = OpenSSL::X509::Certificate.new(File.read(@params[:client_cert]))
    ssl_context.key = OpenSSL::PKey::RSA.new(File.read(@params[:client_key]))
  end
  if @proxy
    request = 'CONNECT ' << @params[:host_port] << Excon::HTTP_1_1
    request << 'Host: ' << @params[:host_port] << Excon::CR_NL
    if @proxy[:password] || @proxy[:user]
      auth = ['' << @proxy[:user].to_s << ':' << @proxy[:password].to_s].pack('m').delete(Excon::CR_NL)
      request << "Proxy-Authorization: Basic " << auth << Excon::CR_NL
    end
    request << 'Proxy-Connection: Keep-Alive' << Excon::CR_NL
    request << Excon::CR_NL
    # write out the proxy setup request
    @socket.write(request)
  end
  # convert Socket to OpenSSL::SSL::SSLSocket
  @socket = OpenSSL::SSL::SSLSocket.new(@socket, ssl_context)
  @socket.sync_close = true
  @socket.connect
  # Server Name Indication (SNI) RFC 3546
  if @socket.respond_to?(:hostname=)
    @socket.hostname = @params[:host]
  end
  # verify connection
  if params[:ssl_verify_peer]
    @socket.post_connection_check(@params[:host])
  end
  @socket
end

def read(max_length=nil)
  check_nonblock_support
  super
end

def write(data)
  check_nonblock_support
  super
end