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class DRbSSLSocket < DRbTCPSocket
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:SSLCertificate => nil,
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:SSLPrivateKey => nil,
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:SSLCACertificatePath => nil,
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:SSLCACertificateFile => nil,
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:SSLVerifyMode => ::OpenSSL::SSL::VERIFY_NONE,
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:SSLVerifyDepth => nil,
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:SSLVerifyCallback => nil, # custom verification
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:SSLCertificateStore => nil,
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# Must specify if you use auto generated certificate.
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:SSLCertName => nil, # e.g. [["CN","fqdn.example.com"]]
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:SSLCertComment => "Generated by Ruby/OpenSSL"
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def initialize(config)
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@cert = config[:SSLCertificate]
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@pkey = config[:SSLPrivateKey]
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@config[key] || DEFAULT[key]
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ssl = ::OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
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ssl = OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
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rsa = OpenSSL::PKey::RSA.new(512){|p, n|
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next unless self[:verbose]
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when 0; $stderr.putc "." # BN_generate_prime
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when 1; $stderr.putc "+" # BN_generate_prime
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when 2; $stderr.putc "*" # searching good prime,
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# but also data from BN_generate_prime
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when 3; $stderr.putc "\n" # found good prime, n==0 - p, n==1 - q,
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# but also data from BN_generate_prime
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else; $stderr.putc "*" # BN_generate_prime
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cert = OpenSSL::X509::Certificate.new
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name = OpenSSL::X509::Name.new(self[:SSLCertName])
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cert.not_before = Time.now
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cert.not_after = Time.now + (365*24*60*60)
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cert.public_key = rsa.public_key
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ef = OpenSSL::X509::ExtensionFactory.new(nil,cert)
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ef.create_extension("basicConstraints","CA:FALSE"),
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ef.create_extension("subjectKeyIdentifier", "hash") ]
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ef.issuer_certificate = cert
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cert.add_extension(ef.create_extension("authorityKeyIdentifier",
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"keyid:always,issuer:always"))
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if comment = self[:SSLCertComment]
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cert.add_extension(ef.create_extension("nsComment", comment))
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cert.sign(rsa, OpenSSL::Digest::SHA1.new)
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ctx = ::OpenSSL::SSL::SSLContext.new
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ctx.client_ca = self[:SSLClientCA]
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ctx.ca_path = self[:SSLCACertificatePath]
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ctx.ca_file = self[:SSLCACertificateFile]
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ctx.verify_mode = self[:SSLVerifyMode]
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ctx.verify_depth = self[:SSLVerifyDepth]
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ctx.verify_callback = self[:SSLVerifyCallback]
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ctx.cert_store = self[:SSLCertificateStore]
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def self.parse_uri(uri)
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if uri =~ /^drbssl:\/\/(.*?):(\d+)(\?(.*))?$/
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raise(DRbBadScheme, uri) unless uri =~ /^drbssl:/
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raise(DRbBadURI, 'can\'t parse uri:' + uri)
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def self.open(uri, config)
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host, port, option = parse_uri(uri)
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soc = TCPSocket.open(host, port)
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ssl_conf = SSLConfig::new(config)
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ssl_conf.setup_ssl_context
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ssl = ssl_conf.connect(soc)
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self.new(uri, ssl, ssl_conf, true)
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def self.open_server(uri, config)
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uri = 'drbssl://:0' unless uri
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host, port, opt = parse_uri(uri)
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soc = open_server_inaddr_any(host, port)
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soc = TCPServer.open(host, port)
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port = soc.addr[1] if port == 0
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@uri = "drbssl://#{host}:#{port}"
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ssl_conf = SSLConfig.new(config)
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ssl_conf.setup_certificate
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ssl_conf.setup_ssl_context
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self.new(@uri, soc, ssl_conf, false)
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def self.uri_option(uri, config)
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host, port, option = parse_uri(uri)
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return "drbssl://#{host}:#{port}", option
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def initialize(uri, soc, config, is_established)
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@ssl = is_established ? soc : nil
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super(uri, soc.to_io, config)
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def stream; @ssl; end
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break if (@acl ? @acl.allow_socket?(soc) : true)
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ssl = @config.accept(soc)
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self.class.new(uri, ssl, @config, true)
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rescue OpenSSL::SSL::SSLError
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warn("#{__FILE__}:#{__LINE__}: warning: #{$!.message} (#{$!.class})") if @config[:verbose]
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DRbProtocol.add_protocol(DRbSSLSocket)