/usr/lib/ruby/1.9.1/drb/ssl.rb is in libruby1.9.1 1.9.3.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | 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; $stderr.putc "*" # BN_generate_prime
end
}
cert = OpenSSL::X509::Certificate.new
cert.version = 3
cert.serial = 0
name = OpenSSL::X509::Name.new(self[:SSLCertName])
cert.subject = name
cert.issuer = name
cert.not_before = Time.now
cert.not_after = Time.now + (365*24*60*60)
cert.public_key = rsa.public_key
ef = OpenSSL::X509::ExtensionFactory.new(nil,cert)
cert.extensions = [
ef.create_extension("basicConstraints","CA:FALSE"),
ef.create_extension("subjectKeyIdentifier", "hash") ]
ef.issuer_certificate = cert
cert.add_extension(ef.create_extension("authorityKeyIdentifier",
"keyid:always,issuer:always"))
if comment = self[:SSLCertComment]
cert.add_extension(ef.create_extension("nsComment", comment))
end
cert.sign(rsa, OpenSSL::Digest::SHA1.new)
@cert = cert
@pkey = rsa
end
def setup_ssl_context
ctx = ::OpenSSL::SSL::SSLContext.new
ctx.cert = @cert
ctx.key = @pkey
ctx.client_ca = self[:SSLClientCA]
ctx.ca_path = self[:SSLCACertificatePath]
ctx.ca_file = self[:SSLCACertificateFile]
ctx.verify_mode = self[:SSLVerifyMode]
ctx.verify_depth = self[:SSLVerifyDepth]
ctx.verify_callback = self[:SSLVerifyCallback]
ctx.cert_store = self[:SSLCertificateStore]
@ssl_ctx = ctx
end
end
def self.parse_uri(uri)
if uri =~ /^drbssl:\/\/(.*?):(\d+)(\?(.*))?$/
host = $1
port = $2.to_i
option = $4
[host, port, option]
else
raise(DRbBadScheme, uri) unless uri =~ /^drbssl:/
raise(DRbBadURI, 'can\'t parse uri:' + uri)
end
end
def self.open(uri, config)
host, port, = parse_uri(uri)
host.untaint
port.untaint
soc = TCPSocket.open(host, port)
ssl_conf = SSLConfig::new(config)
ssl_conf.setup_ssl_context
ssl = ssl_conf.connect(soc)
self.new(uri, ssl, ssl_conf, true)
end
def self.open_server(uri, config)
uri = 'drbssl://:0' unless uri
host, port, = parse_uri(uri)
if host.size == 0
host = getservername
soc = open_server_inaddr_any(host, port)
else
soc = TCPServer.open(host, port)
end
port = soc.addr[1] if port == 0
@uri = "drbssl://#{host}:#{port}"
ssl_conf = SSLConfig.new(config)
ssl_conf.setup_certificate
ssl_conf.setup_ssl_context
self.new(@uri, soc, ssl_conf, false)
end
def self.uri_option(uri, config)
host, port, option = parse_uri(uri)
return "drbssl://#{host}:#{port}", option
end
def initialize(uri, soc, config, is_established)
@ssl = is_established ? soc : nil
super(uri, soc.to_io, config)
end
def stream; @ssl; end
def close
if @ssl
@ssl.close
@ssl = nil
end
super
end
def accept
begin
while true
soc = @socket.accept
break if (@acl ? @acl.allow_socket?(soc) : true)
soc.close
end
ssl = @config.accept(soc)
self.class.new(uri, ssl, @config, true)
rescue OpenSSL::SSL::SSLError
warn("#{__FILE__}:#{__LINE__}: warning: #{$!.message} (#{$!.class})") if @config[:verbose]
retry
end
end
end
DRbProtocol.add_protocol(DRbSSLSocket)
end
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