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add acl.rb, ssl.rb
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4676 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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seki
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e6b60ce2fe
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2 changed files with 329 additions and 0 deletions
144
lib/drb/acl.rb
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144
lib/drb/acl.rb
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# acl-2.0 - simple Access Control List
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#
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# Copyright (c) 2000,2002,2003 Masatoshi SEKI
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#
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# acl.rb is copyrighted free software by Masatoshi SEKI.
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# You can redistribute it and/or modify it under the same terms as Ruby.
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require 'ipaddr'
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class ACL
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VERSION=["2.0.0"]
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class ACLEntry
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def initialize(str)
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if str == '*' or str == 'all'
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@pat = [:all]
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else
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begin
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@pat = [:ip, IPAddr.new(str)]
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rescue ArgumentError
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@pat = [:name, dot_pat(str)]
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end
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end
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end
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private
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def dot_pat_str(str)
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list = str.split('.').collect { |s|
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(s == '*') ? '.+' : s
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}
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list.join("\\.")
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end
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private
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def dot_pat(str)
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exp = "^" + dot_pat_str(str) + "$"
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Regexp.new(exp)
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end
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public
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def match(addr)
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case @pat[0]
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when :all
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true
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when :ip
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begin
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ipaddr = IPAddr.new(addr[3])
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ipaddr = ipaddr.ipv4_mapped if @pat[1].ipv6? && ipaddr.ipv4?
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rescue ArgumentError
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return false
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end
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(@pat[1].include?(ipaddr)) ? true : false
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when :name
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(@pat[1] =~ addr[2]) ? true : false
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else
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false
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end
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end
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end
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class ACLList
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def initialize
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@list = []
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end
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public
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def match(addr)
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@list.each do |e|
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return true if e.match(addr)
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end
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false
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end
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public
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def add(str)
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@list.push(ACLEntry.new(str))
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end
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end
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DENY_ALLOW = 0
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ALLOW_DENY = 1
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def initialize(list=nil, order = DENY_ALLOW)
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@order = order
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@deny = ACLList.new
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@allow = ACLList.new
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install_list(list) if list
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end
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public
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def allow_socket?(soc)
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allow_addr?(soc.peeraddr)
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end
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public
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def allow_addr?(addr)
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case @order
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when DENY_ALLOW
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return true if @allow.match(addr)
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return false if @deny.match(addr)
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return true
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when ALLOW_DENY
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return false if @deny.match(addr)
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return true if @allow.match(addr)
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return false
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else
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false
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end
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end
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public
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def install_list(list)
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i = 0
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while i < list.size
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permission, domain = list.slice(i,2)
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case permission.downcase
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when 'allow'
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@allow.add(domain)
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when 'deny'
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@deny.add(domain)
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else
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raise "Invalid ACL entry #{list.to_s}"
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end
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i += 2
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end
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end
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end
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if __FILE__ == $0
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# example
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list = %w(deny all
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allow 192.168.1.1
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allow ::ffff:192.168.1.2
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allow 192.168.1.3
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)
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addr = ["AF_INET", 10, "lc630", "192.168.1.3"]
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acl = ACL.new
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p acl.allow_addr?(addr)
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acl = ACL.new(list, ACL::DENY_ALLOW)
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p acl.allow_addr?(addr)
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end
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185
lib/drb/ssl.rb
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185
lib/drb/ssl.rb
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@ -0,0 +1,185 @@
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require 'socket'
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require 'openssl'
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require 'drb/drb'
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require 'singleton'
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module DRb
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class DRbSSLSocket < DRbTCPSocket
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class SSLConfig
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DEFAULT = {
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:SSLCertificate => nil,
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:SSLPrivateKey => nil,
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:SSLClientCA => 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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}
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def initialize(config)
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@config = config
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@cert = config[:SSLCertificate]
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@pkey = config[:SSLPrivateKey]
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@ssl_ctx = nil
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end
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def [](key);
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@config[key] || DEFAULT[key]
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end
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def connect(tcp)
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ssl = ::OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
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ssl.sync = true
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ssl.connect
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ssl
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end
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def accept(tcp)
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ssl = OpenSSL::SSL::SSLSocket.new(tcp, @ssl_ctx)
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ssl.sync = true
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ssl.accept
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ssl
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end
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def setup_certificate
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if @cert && @pkey
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return
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end
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rsa = OpenSSL::PKey::RSA.new(512){|p, n|
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next unless self[:verbose]
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case p
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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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# n = #of try,
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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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end
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}
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cert = OpenSSL::X509::Certificate.new
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cert.version = 3
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cert.serial = 0
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name = OpenSSL::X509::Name.new(self[:SSLCertName])
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cert.subject = name
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cert.issuer = name
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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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cert.extensions = [
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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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end
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cert.sign(rsa, OpenSSL::Digest::SHA1.new)
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@cert = cert
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@pkey = rsa
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end
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def setup_ssl_context
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ctx = ::OpenSSL::SSL::SSLContext.new
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ctx.cert = @cert
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ctx.key = @pkey
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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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@ssl_ctx = ctx
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end
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end
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def self.parse_uri(uri)
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if uri =~ /^drbssl:\/\/(.*?):(\d+)(\?(.*))?$/
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host = $1
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port = $2.to_i
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option = $4
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[host, port, option]
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else
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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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end
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end
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def self.open(uri, config)
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host, port, option = parse_uri(uri)
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host.untaint
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port.untaint
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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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end
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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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if host.size == 0
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soc = TCPServer.open(port)
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host = Socket.gethostname
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else
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soc = TCPServer.open(host, port)
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end
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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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end
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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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end
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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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end
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def stream; @ssl; end
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def close
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if @ssl
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@ssl.close
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@ssl = nil
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end
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super
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end
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def accept
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while true
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soc = @socket.accept
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break if (@acl ? @acl.allow_socket?(soc) : true)
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soc.close
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end
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ssl = @config.accept(soc)
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self.class.new(uri, ssl, @config, true)
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end
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end
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DRbProtocol.add_protocol(DRbSSLSocket)
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end
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