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ðŸ“ ..
ðŸ“„ English.rb(6.44 KB)
ðŸ“„ abbrev.rb(3.31 KB)
ðŸ“„ base64.rb(2.63 KB)
ðŸ“„ benchmark.rb(17.95 KB)
ðŸ“ cgi
ðŸ“„ cgi.rb(9.84 KB)
ðŸ“„ cmath.rb(8.93 KB)
ðŸ“„ complex.rb(380 B)
ðŸ“„ csv.rb(81.68 KB)
ðŸ“ date
ðŸ“„ date.rb(946 B)
ðŸ“„ debug.rb(29.08 KB)
ðŸ“„ delegate.rb(11.13 KB)
ðŸ“ digest
ðŸ“„ digest.rb(2.34 KB)
ðŸ“ dl
ðŸ“„ dl.rb(280 B)
ðŸ“ drb
ðŸ“„ drb.rb(19 B)
ðŸ“„ e2mmap.rb(3.89 KB)
ðŸ“„ erb.rb(26.07 KB)
ðŸ“„ expect.rb(2.14 KB)
ðŸ“ fiddle
ðŸ“„ fiddle.rb(1.65 KB)
ðŸ“„ fileutils.rb(47.17 KB)
ðŸ“„ find.rb(2.36 KB)
ðŸ“„ forwardable.rb(7.86 KB)
ðŸ“„ getoptlong.rb(15.38 KB)
ðŸ“„ gserver.rb(8.86 KB)
ðŸ“ io
ðŸ“„ ipaddr.rb(17.05 KB)
ðŸ“ irb
ðŸ“„ irb.rb(20.03 KB)
ðŸ“ json
ðŸ“„ json.rb(1.74 KB)
ðŸ“„ kconv.rb(5.74 KB)
ðŸ“„ logger.rb(22.37 KB)
ðŸ“„ mathn.rb(6.52 KB)
ðŸ“ matrix
ðŸ“„ matrix.rb(45.43 KB)
ðŸ“„ mkmf.rb(80.5 KB)
ðŸ“„ monitor.rb(6.93 KB)
ðŸ“„ mutex_m.rb(2 KB)
ðŸ“ net
ðŸ“„ observer.rb(5.81 KB)
ðŸ“„ open-uri.rb(24.27 KB)
ðŸ“„ open3.rb(20.37 KB)
ðŸ“ openssl
ðŸ“„ openssl.rb(528 B)
ðŸ“ optparse
ðŸ“„ optparse.rb(50.8 KB)
ðŸ“„ ostruct.rb(7.7 KB)
ðŸ“„ pathname.rb(15.3 KB)
ðŸ“„ pp.rb(14.1 KB)
ðŸ“„ prettyprint.rb(16.33 KB)
ðŸ“„ prime.rb(13.2 KB)
ðŸ“„ profile.rb(205 B)
ðŸ“„ profiler.rb(4.51 KB)
ðŸ“„ pstore.rb(14.85 KB)
ðŸ“ psych
ðŸ“„ psych.rb(14.88 KB)
ðŸ“ racc
ðŸ“ rake
ðŸ“„ rake.rb(2.12 KB)
ðŸ“„ rational.rb(308 B)
ðŸ“ rbconfig
ðŸ“ rdoc
ðŸ“„ rdoc.rb(4.92 KB)
ðŸ“„ resolv-replace.rb(1.73 KB)
ðŸ“„ resolv.rb(72.31 KB)
ðŸ“ rexml
ðŸ“ rinda
ðŸ“ ripper
ðŸ“„ ripper.rb(2.53 KB)
ðŸ“ rss
ðŸ“„ rss.rb(2.84 KB)
ðŸ“ rubygems
ðŸ“„ rubygems.rb(30.97 KB)
ðŸ“„ scanf.rb(23.54 KB)
ðŸ“„ securerandom.rb(8.49 KB)
ðŸ“„ set.rb(18.7 KB)
ðŸ“ shell
ðŸ“„ shell.rb(10.3 KB)
ðŸ“„ shellwords.rb(5.94 KB)
ðŸ“„ singleton.rb(4.02 KB)
ðŸ“„ socket.rb(25.6 KB)
ðŸ“„ sync.rb(7.25 KB)
ðŸ“ syslog
ðŸ“„ tempfile.rb(11.4 KB)
ðŸ“ test
ðŸ“„ thwait.rb(3.38 KB)
ðŸ“„ time.rb(21.32 KB)
ðŸ“„ timeout.rb(3.7 KB)
ðŸ“„ tmpdir.rb(4.15 KB)
ðŸ“„ tracer.rb(6.4 KB)
ðŸ“„ tsort.rb(14.14 KB)
ðŸ“„ ubygems.rb(268 B)
ðŸ“„ un.rb(8.87 KB)
ðŸ“ uri
ðŸ“„ uri.rb(3.07 KB)
ðŸ“„ weakref.rb(3.23 KB)
ðŸ“ webrick
ðŸ“„ webrick.rb(6.69 KB)
ðŸ“ x86_64-linux
ðŸ“ xmlrpc
ðŸ“„ xmlrpc.rb(8.49 KB)
ðŸ“ yaml
ðŸ“„ yaml.rb(2.31 KB)

Editing: securerandom.rb

begin
  require 'openssl'
rescue LoadError
end

# == Secure random number generator interface.
#
# This library is an interface for secure random number generator which is
# suitable for generating session key in HTTP cookies, etc.
#
# It supports following secure random number generators.
#
# * openssl
# * /dev/urandom
# * Win32
#
# === Examples
#
# Hexadecimal string.
#
#   p SecureRandom.hex(10) #=> "52750b30ffbc7de3b362"
#   p SecureRandom.hex(10) #=> "92b15d6c8dc4beb5f559"
#   p SecureRandom.hex(13) #=> "39b290146bea6ce975c37cfc23"
#
# Base64 string.
#
#   p SecureRandom.base64(10) #=> "EcmTPZwWRAozdA=="
#   p SecureRandom.base64(10) #=> "KO1nIU+p9DKxGg=="
#   p SecureRandom.base64(12) #=> "7kJSM/MzBJI+75j8"
#
# Binary string.
#
#   p SecureRandom.random_bytes(10) #=> "\016\t{\370g\310pbr\301"
#   p SecureRandom.random_bytes(10) #=> "\323U\030TO\234\357\020\a\337"
module SecureRandom
  # SecureRandom.random_bytes generates a random binary string.
  #
  # The argument _n_ specifies the length of the result string.
  #
  # If _n_ is not specified or is nil, 16 is assumed.
  # It may be larger in future.
  #
  # The result may contain any byte: "\x00" - "\xff".
  #
  #   p SecureRandom.random_bytes #=> "\xD8\\\xE0\xF4\r\xB2\xFC*WM\xFF\x83\x18\xF45\xB6"
  #   p SecureRandom.random_bytes #=> "m\xDC\xFC/\a\x00Uf\xB2\xB2P\xBD\xFF6S\x97"
  #
  # If secure random number generator is not available,
  # NotImplementedError is raised.
  def self.random_bytes(n=nil)
    n = n ? n.to_int : 16

if defined? OpenSSL::Random
      @pid = 0 unless defined?(@pid)
      pid = $$
      unless @pid == pid
        now = Process.clock_gettime(Process::CLOCK_REALTIME, :nanosecond)
        ary = [now, @pid, pid]
        OpenSSL::Random.random_add(ary.join("").to_s, 0.0)
        @pid = pid
      end
      return OpenSSL::Random.random_bytes(n)
    end

if !defined?(@has_urandom) || @has_urandom
      flags = File::RDONLY
      flags |= File::NONBLOCK if defined? File::NONBLOCK
      flags |= File::NOCTTY if defined? File::NOCTTY
      begin
        File.open("/dev/urandom", flags) {|f|
          unless f.stat.chardev?
            raise Errno::ENOENT
          end
          @has_urandom = true
          ret = f.read(n)
          unless ret.length == n
            raise NotImplementedError, "Unexpected partial read from random device: only #{ret.length} for #{n} bytes"
          end
          return ret
        }
      rescue Errno::ENOENT
        @has_urandom = false
      end
    end

unless defined?(@has_win32)
      begin
        require 'Win32API'

crypt_acquire_context = Win32API.new("advapi32", "CryptAcquireContext", 'PPPII', 'L')
        @crypt_gen_random = Win32API.new("advapi32", "CryptGenRandom", 'VIP', 'L')

hProvStr = " " * DL::SIZEOF_VOIDP
        prov_rsa_full = 1
        crypt_verifycontext = 0xF0000000

if crypt_acquire_context.call(hProvStr, nil, nil, prov_rsa_full, crypt_verifycontext) == 0
          raise SystemCallError, "CryptAcquireContext failed: #{lastWin32ErrorMessage}"
        end
        type = DL::SIZEOF_VOIDP == DL::SIZEOF_LONG_LONG ? 'q' : 'l'
        @hProv, = hProvStr.unpack(type)

@has_win32 = true
      rescue LoadError
        @has_win32 = false
      end
    end
    if @has_win32
      bytes = " ".force_encoding("ASCII-8BIT") * n
      if @crypt_gen_random.call(@hProv, bytes.size, bytes) == 0
        raise SystemCallError, "CryptGenRandom failed: #{lastWin32ErrorMessage}"
      end
      return bytes
    end

raise NotImplementedError, "No random device"
  end

# SecureRandom.hex generates a random hexadecimal string.
  #
  # The argument _n_ specifies the length, in bytes, of the random number to be generated.
  # The length of the resulting hexadecimal string is twice _n_.
  #
  # If _n_ is not specified or is nil, 16 is assumed.
  # It may be larger in future.
  #
  # The result may contain 0-9 and a-f.
  #
  #   p SecureRandom.hex #=> "eb693ec8252cd630102fd0d0fb7c3485"
  #   p SecureRandom.hex #=> "91dc3bfb4de5b11d029d376634589b61"
  #
  # If secure random number generator is not available,
  # NotImplementedError is raised.
  def self.hex(n=nil)
    random_bytes(n).unpack("H*")[0]
  end

# SecureRandom.base64 generates a random base64 string.
  #
  # The argument _n_ specifies the length, in bytes, of the random number
  # to be generated. The length of the result string is about 4/3 of _n_.
  #
  # If _n_ is not specified or is nil, 16 is assumed.
  # It may be larger in future.
  #
  # The result may contain A-Z, a-z, 0-9, "+", "/" and "=".
  #
  #   p SecureRandom.base64 #=> "/2BuBuLf3+WfSKyQbRcc/A=="
  #   p SecureRandom.base64 #=> "6BbW0pxO0YENxn38HMUbcQ=="
  #
  # If secure random number generator is not available,
  # NotImplementedError is raised.
  #
  # See RFC 3548 for the definition of base64.
  def self.base64(n=nil)
    [random_bytes(n)].pack("m*").delete("\n")
  end

# SecureRandom.urlsafe_base64 generates a random URL-safe base64 string.
  #
  # The argument _n_ specifies the length, in bytes, of the random number
  # to be generated. The length of the result string is about 4/3 of _n_.
  #
  # If _n_ is not specified or is nil, 16 is assumed.
  # It may be larger in future.
  #
  # The boolean argument _padding_ specifies the padding.
  # If it is false or nil, padding is not generated.
  # Otherwise padding is generated.
  # By default, padding is not generated because "=" may be used as a URL delimiter.
  #
  # The result may contain A-Z, a-z, 0-9, "-" and "_".
  # "=" is also used if _padding_ is true.
  #
  #   p SecureRandom.urlsafe_base64 #=> "b4GOKm4pOYU_-BOXcrUGDg"
  #   p SecureRandom.urlsafe_base64 #=> "UZLdOkzop70Ddx-IJR0ABg"
  #
  #   p SecureRandom.urlsafe_base64(nil, true) #=> "i0XQ-7gglIsHGV2_BNPrdQ=="
  #   p SecureRandom.urlsafe_base64(nil, true) #=> "-M8rLhr7JEpJlqFGUMmOxg=="
  #
  # If secure random number generator is not available,
  # NotImplementedError is raised.
  #
  # See RFC 3548 for the definition of URL-safe base64.
  def self.urlsafe_base64(n=nil, padding=false)
    s = [random_bytes(n)].pack("m*")
    s.delete!("\n")
    s.tr!("+/", "-_")
    s.delete!("=") unless padding
    s
  end

# SecureRandom.random_number generates a random number.
  #
  # If a positive integer is given as _n_,
  # SecureRandom.random_number returns an integer:
  # 0 <= SecureRandom.random_number(n) < n.
  #
  #   p SecureRandom.random_number(100) #=> 15
  #   p SecureRandom.random_number(100) #=> 88
  #
  # If 0 is given or an argument is not given,
  # SecureRandom.random_number returns a float:
  # 0.0 <= SecureRandom.random_number() < 1.0.
  #
  #   p SecureRandom.random_number #=> 0.596506046187744
  #   p SecureRandom.random_number #=> 0.350621695741409
  #
  def self.random_number(n=0)
    if 0 < n
      hex = n.to_s(16)
      hex = '0' + hex if (hex.length & 1) == 1
      bin = [hex].pack("H*")
      mask = bin[0].ord
      mask |= mask >> 1
      mask |= mask >> 2
      mask |= mask >> 4
      begin
        rnd = SecureRandom.random_bytes(bin.length)
        rnd[0] = (rnd[0].ord & mask).chr
      end until rnd < bin
      rnd.unpack("H*")[0].hex
    else
      # assumption: Float::MANT_DIG <= 64
      i64 = SecureRandom.random_bytes(8).unpack("Q")[0]
      Math.ldexp(i64 >> (64-Float::MANT_DIG), -Float::MANT_DIG)
    end
  end

# SecureRandom.uuid generates a v4 random UUID (Universally Unique IDentifier).
  #
  #   p SecureRandom.uuid #=> "2d931510-d99f-494a-8c67-87feb05e1594"
  #   p SecureRandom.uuid #=> "bad85eb9-0713-4da7-8d36-07a8e4b00eab"
  #   p SecureRandom.uuid #=> "62936e70-1815-439b-bf89-8492855a7e6b"
  #
  # The version 4 UUID is purely random (except the version).
  # It doesn't contain meaningful information such as MAC address, time, etc.
  #
  # See RFC 4122 for details of UUID.
  #
  def self.uuid
    ary = self.random_bytes(16).unpack("NnnnnN")
    ary[2] = (ary[2] & 0x0fff) | 0x4000
    ary[3] = (ary[3] & 0x3fff) | 0x8000
    "%08x-%04x-%04x-%04x-%04x%08x" % ary
  end

# Following code is based on David Garamond's GUID library for Ruby.
  def self.lastWin32ErrorMessage # :nodoc:
    get_last_error = Win32API.new("kernel32", "GetLastError", '', 'L')
    format_message = Win32API.new("kernel32", "FormatMessageA", 'LPLLPLPPPPPPPP', 'L')
    format_message_ignore_inserts = 0x00000200
    format_message_from_system    = 0x00001000

code = get_last_error.call
    msg = "\0" * 1024
    len = format_message.call(format_message_ignore_inserts + format_message_from_system, 0, code, 0, msg, 1024, nil, nil, nil, nil, nil, nil, nil, nil)
    msg[0, len].force_encoding("filesystem").tr("\r", '').chomp
  end
end

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Editing: securerandom.rb

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