require 'digest.so'

[0] Fix | Delete

[1] Fix | Delete

module Digest

[2] Fix | Delete

# A mutex for Digest().

[3] Fix | Delete

REQUIRE_MUTEX = Mutex.new

[4] Fix | Delete

[5] Fix | Delete

def self.const_missing(name) # :nodoc:

[6] Fix | Delete

case name

[7] Fix | Delete

when :SHA256, :SHA384, :SHA512

[8] Fix | Delete

lib = 'digest/sha2.so'

[9] Fix | Delete

else

[10] Fix | Delete

lib = File.join('digest', name.to_s.downcase)

[11] Fix | Delete

end

[12] Fix | Delete

[13] Fix | Delete

begin

[14] Fix | Delete

require lib

[15] Fix | Delete

rescue LoadError

[16] Fix | Delete

raise LoadError, "library not found for class Digest::#{name} -- #{lib}", caller(1)

[17] Fix | Delete

end

[18] Fix | Delete

unless Digest.const_defined?(name)

[19] Fix | Delete

raise NameError, "uninitialized constant Digest::#{name}", caller(1)

[20] Fix | Delete

end

[21] Fix | Delete

Digest.const_get(name)

[22] Fix | Delete

end

[23] Fix | Delete

[24] Fix | Delete

class ::Digest::Class

[25] Fix | Delete

# Creates a digest object and reads a given file, _name_.

[26] Fix | Delete

# Optional arguments are passed to the constructor of the digest

[27] Fix | Delete

# class.

[28] Fix | Delete

#

[29] Fix | Delete

# p Digest::SHA256.file("X11R6.8.2-src.tar.bz2").hexdigest

[30] Fix | Delete

# # => "f02e3c85572dc9ad7cb77c2a638e3be24cc1b5bea9fdbb0b0299c9668475c534"

[31] Fix | Delete

def self.file(name, *args)

[32] Fix | Delete

new(*args).file(name)

[33] Fix | Delete

end

[34] Fix | Delete

[35] Fix | Delete

# Returns the base64 encoded hash value of a given _string_. The

[36] Fix | Delete

# return value is properly padded with '=' and contains no line

[37] Fix | Delete

# feeds.

[38] Fix | Delete

def self.base64digest(str, *args)

[39] Fix | Delete

[digest(str, *args)].pack('m0')

[40] Fix | Delete

end

[41] Fix | Delete

end

[42] Fix | Delete

[43] Fix | Delete

module Instance

[44] Fix | Delete

# Updates the digest with the contents of a given file _name_ and

[45] Fix | Delete

# returns self.

[46] Fix | Delete

def file(name)

[47] Fix | Delete

File.open(name, "rb") {|f|

[48] Fix | Delete

buf = ""

[49] Fix | Delete

while f.read(16384, buf)

[50] Fix | Delete

update buf

[51] Fix | Delete

end

[52] Fix | Delete

}

[53] Fix | Delete

self

[54] Fix | Delete

end

[55] Fix | Delete

[56] Fix | Delete

# If none is given, returns the resulting hash value of the digest

[57] Fix | Delete

# in a base64 encoded form, keeping the digest's state.

[58] Fix | Delete

#

[59] Fix | Delete

# If a +string+ is given, returns the hash value for the given

[60] Fix | Delete

# +string+ in a base64 encoded form, resetting the digest to the

[61] Fix | Delete

# initial state before and after the process.

[62] Fix | Delete

#

[63] Fix | Delete

# In either case, the return value is properly padded with '=' and

[64] Fix | Delete

# contains no line feeds.

[65] Fix | Delete

def base64digest(str = nil)

[66] Fix | Delete

[str ? digest(str) : digest].pack('m0')

[67] Fix | Delete

end

[68] Fix | Delete

[69] Fix | Delete

# Returns the resulting hash value and resets the digest to the

[70] Fix | Delete

# initial state.

[71] Fix | Delete

def base64digest!

[72] Fix | Delete

[digest!].pack('m0')

[73] Fix | Delete

end

[74] Fix | Delete

end

[75] Fix | Delete

end

[76] Fix | Delete

[77] Fix | Delete

# call-seq:

[78] Fix | Delete

# Digest(name) -> digest_subclass

[79] Fix | Delete

#

[80] Fix | Delete

# Returns a Digest subclass by +name+ in a thread-safe manner even

[81] Fix | Delete

# when on-demand loading is involved.

[82] Fix | Delete

#

[83] Fix | Delete

# require 'digest'

[84] Fix | Delete

#

[85] Fix | Delete

# Digest("MD5")

[86] Fix | Delete

# # => Digest::MD5

[87] Fix | Delete

#

[88] Fix | Delete

# Digest(:SHA256)

[89] Fix | Delete

# # => Digest::SHA256

[90] Fix | Delete

#

[91] Fix | Delete

# Digest(:Foo)

[92] Fix | Delete

# # => LoadError: library not found for class Digest::Foo -- digest/foo

[93] Fix | Delete

def Digest(name)

[94] Fix | Delete

const = name.to_sym

[95] Fix | Delete

Digest::REQUIRE_MUTEX.synchronize {

[96] Fix | Delete

# Ignore autoload's because it is void when we have #const_missing

[97] Fix | Delete

Digest.const_missing(const)

[98] Fix | Delete

}

[99] Fix | Delete

rescue LoadError

[100] Fix | Delete

# Constants do not necessarily rely on digest/*.

[101] Fix | Delete

if Digest.const_defined?(const)

[102] Fix | Delete

Digest.const_get(const)

[103] Fix | Delete

else

[104] Fix | Delete

raise

[105] Fix | Delete

end

[106] Fix | Delete

end

[107] Fix | Delete

[108] Fix | Delete