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 



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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