Class: DRb::DRbSSLSocket::SSLConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/drb/ssl.rb

Constant Summary collapse

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"
}

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ SSLConfig

Returns a new instance of SSLConfig.



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# File 'lib/drb/ssl.rb', line 27

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

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/drb/ssl.rb', line 34

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

#accept(tcp) ⇒ Object 



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# File 'lib/drb/ssl.rb', line 45

def accept(tcp)
	ssl = OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
	ssl.sync = true
	ssl.accept
	ssl
end

#connect(tcp) ⇒ Object 



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# File 'lib/drb/ssl.rb', line 38

def connect(tcp)
	ssl = ::OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
	ssl.sync = true
	ssl.connect
	ssl
end

#setup_certificate ⇒ Object 



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# File 'lib/drb/ssl.rb', line 52

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
	cert.sign(rsa, OpenSSL::Digest::SHA1.new)
	
	@cert = cert
  @pkey = rsa
end

#setup_ssl_context ⇒ Object 



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# File 'lib/drb/ssl.rb', line 97

def setup_ssl_context
  ctx = ::OpenSSL::SSL::SSLContext.new
  ctx.cert            = @cert
  ctx.key             = @pkey
	ctx.client_ca       = self[:SSLClientCA]
	ctx.ca_path         = self[:SSLCACertificatePath]
	ctx.ca_file         = self[:SSLCACertificateFile]
	ctx.verify_mode     = self[:SSLVerifyMode]
	ctx.verify_depth    = self[:SSLVerifyDepth]
	ctx.verify_callback = self[:SSLVerifyCallback]
  ctx.cert_store      = self[:SSLCertificateStore]
  @ssl_ctx = ctx
end