Class: MacAdmin::SaltedSHA1

Inherits:
ShadowHash show all
Defined in:
lib/macadmin/shadowhash.rb

Overview

Legacy ShadowHashs

  • password management for Mac OS X 10.6 and below

  • passwords are managed in separate files in /var/db/shadow/hash

Constant Summary collapse

SHADOWHASH_STORE = 
'/private/var/db/shadow/hash'

Instance Attribute Summary collapse

Attributes inherited from ShadowHash

#label

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ShadowHash

create_from_user_record, read_shadowhashdata

Methods included from Password

#apropos, #convert_to_blob, #convert_to_hex, #salted_sha1, #salted_sha512, #salted_sha512_pbkdf2, salted_sha512_pbkdf2_from_string

Constructor Details

#initialize(string) ⇒ SaltedSHA1

Initializes a SaltedSHA512 ShadowHash object from string

  • string param should be a hex string, 24 bytes



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# File 'lib/macadmin/shadowhash.rb', line 76

def initialize(string)
  @hash = validate(string)
end

Instance Attribute Details

#hash ⇒ Object

Returns the value of attribute hash.



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# File 'lib/macadmin/shadowhash.rb', line 54

def hash
  @hash
end

Class Method Details

.create_from_shadowhash_file(guid) ⇒ Object 



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# File 'lib/macadmin/shadowhash.rb', line 58

def create_from_shadowhash_file(guid)
  file = "#{SHADOWHASH_STORE}/#{guid}"
  if File.exists? file
    hash = read_from_shadowhash_file(file)
    return nil unless hash
    self.new(hash)
  end
end

.read_from_shadowhash_file(file) ⇒ Object 



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# File 'lib/macadmin/shadowhash.rb', line 67

def read_from_shadowhash_file(file)
  content = File.readlines(file).first
  content[168,48]
end

Instance Method Details

#data ⇒ Object

Return the ShadowHash as a Salted SHA1 String



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# File 'lib/macadmin/shadowhash.rb', line 94

def data
  @data ||= @hash.to_s
end

#password ⇒ Object

Return a String representation of the ShadowHash data



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# File 'lib/macadmin/shadowhash.rb', line 89

def password
  @hash.to_s
end

#validate(string) ⇒ Object

Validates the string param

  • ensure the string param is hex string 24 bytes long

Raises:

  • (ArgumentError) 


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# File 'lib/macadmin/shadowhash.rb', line 82

def validate(string)
  error = "Invalid: arg must be hexadecimal string (24 bytes)"
  raise ArgumentError.new(error) unless string =~ /([A-F0-9]{2}){24}/
  string
end