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Diffstat (limited to 'lib/rexml/light/node.rb')

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require 'socket'
require 'openssl'
require 'drb/drb'
require 'singleton'

module DRb

  class DRbSSLSocket < DRbTCPSocket

    class SSLConfig

      DEFAULT = {
	:SSLCertificate       => nil,
	:SSLPrivateKey        => nil,
	:SSLClientCA          => nil,
	:SSLCACertificatePath => nil,
	:SSLCACertificateFile => nil,
	:SSLVerifyMode        => ::OpenSSL::SSL::VERIFY_NONE, 
	:SSLVerifyDepth       => nil,
	:SSLVerifyCallback    => nil,   # custom verification
        :SSLCertificateStore  => nil,
	# Must specify if you use auto generated certificate.
	:SSLCertName          => nil,   # e.g. [["CN","fqdn.example.com"]]
	:SSLCertComment       => "Generated by Ruby/OpenSSL"
      }

      def initialize(config)
	@config  = config
        @cert    = config[:SSLCertificate]
        @pkey    = config[:SSLPrivateKey]
        @ssl_ctx = nil
      end

      def [](key); 
	@config[key] || DEFAULT[key]
      end

      def connect(tcp)
	ssl = ::OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
	ssl.sync = true
	ssl.connect
	ssl
      end
      
      def accept(tcp)
	ssl = OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
	ssl.sync = true
	ssl.accept
	ssl
      end
      
      def setup_certificate
        if @cert && @pkey
          return
        end

	rsa = OpenSSL::PKey::RSA.new(512){|p, n|
	  next unless self[:verbose]
	  case p
	  when 0; $stderr.putc "."  # BN_generate_prime
	  when 1; $stderr.putc "+"  # BN_generate_prime
	  when 2; $stderr.putc "*"  # searching good prime,
	                            # n = #of try,
                          	    # but also data from BN_generate_prime
	  when 3; $stderr.putc "\n" # found good prime, n==0 - p, n==1 - q,
                         	    # but also data from BN_generate_prime
	  else;   $stderr.putc "*"  # BN_generate_prime
	  end
	}

	cert = OpenSSL::X509::Certificate.new
	cert.version = 3
	cert.serial = 0
	name = OpenSSL::X509::Name.new(self[:SSLCertName])
	cert.subject = name
	cert.issuer = name
	cert.not_before = Time.now
	cert.not_after = Time.now + (365*24*60*60)
	cert.public_key = rsa.public_key
	
	ef = OpenSSL::X509::ExtensionFactory.new(nil,cert)
	cert.extensions = [
	  ef.create_extension("basicConstraints","CA:FALSE"),
	  ef.create_extension("subjectKeyIdentifier", "hash") ]
	ef.issuer_certificate = cert
	cert.add_extension(ef.create_extension("authorityKeyIdentifier",
					       "keyid:always,issuer:always"))
	if comment = self[:SSLCertComment]
	  cert.add_extension(ef.create_extension("nsComment", comment))
	end


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