Module WEBrick::Utils
In: webrick/utils.rb
webrick/ssl.rb

Methods

Constants

RAND_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "0123456789" + "abcdefghijklmnopqrstuvwxyz"

Public Instance methods

[Source]

# File webrick/utils.rb, line 59
    def create_listeners(address, port, logger=nil)
      unless port
        raise ArgumentError, "must specify port"
      end
      res = Socket::getaddrinfo(address, port,
                                Socket::AF_UNSPEC,   # address family
                                Socket::SOCK_STREAM, # socket type
                                0,                   # protocol
                                Socket::AI_PASSIVE)  # flag
      last_error = nil
      sockets = []
      res.each{|ai|
        begin
          logger.debug("TCPServer.new(#{ai[3]}, #{port})") if logger
          sock = TCPServer.new(ai[3], port)
          port = sock.addr[1] if port == 0
          Utils::set_close_on_exec(sock)
          sockets << sock
        rescue => ex
          logger.warn("TCPServer Error: #{ex}") if logger
          last_error  = ex
        end
      }
      raise last_error if sockets.empty?
      return sockets
    end

[Source]

# File webrick/ssl.rb, line 39
    def create_self_signed_cert(bits, cn, comment)
      rsa = OpenSSL::PKey::RSA.new(bits){|p, n|
        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(cn)
      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)
      ef.issuer_certificate = cert
      cert.extensions = [
        ef.create_extension("basicConstraints","CA:FALSE"),
        ef.create_extension("keyUsage", "keyEncipherment"),
        ef.create_extension("subjectKeyIdentifier", "hash"),
        ef.create_extension("extendedKeyUsage", "serverAuth"),
        ef.create_extension("nsComment", comment),
      ]
      aki = ef.create_extension("authorityKeyIdentifier",
                                "keyid:always,issuer:always")
      cert.add_extension(aki)
      cert.sign(rsa, OpenSSL::Digest::SHA1.new)

      return [ cert, rsa ]
    end

[Source]

# File webrick/utils.rb, line 49
    def getservername
      host = Socket::gethostname
      begin
        Socket::gethostbyname(host)[0]
      rescue
        host
      end
    end

[Source]

# File webrick/utils.rb, line 91
    def random_string(len)
      rand_max = RAND_CHARS.size
      ret = "" 
      len.times{ ret << RAND_CHARS[rand(rand_max)] }
      ret 
    end

[Source]

# File webrick/utils.rb, line 30
    def set_close_on_exec(io)
      if defined?(Fcntl::FD_CLOEXEC)
        io.fcntl(Fcntl::FD_CLOEXEC, 1)
      end
    end

[Source]

# File webrick/utils.rb, line 21
    def set_non_blocking(io)
      flag = File::NONBLOCK
      if defined?(Fcntl::F_GETFL)
        flag |= io.fcntl(Fcntl::F_GETFL)
      end
      io.fcntl(Fcntl::F_SETFL, flag)
    end

[Source]

# File webrick/utils.rb, line 37
    def su(user)
      if defined?(Etc)
        pw = Etc.getpwnam(user)
        Process::initgroups(user, pw.gid)
        Process::Sys::setgid(pw.gid)
        Process::Sys::setuid(pw.uid)
      else
        warn("WEBrick::Utils::su doesn't work on this platform")
      end
    end

[Validate]