Module: StrongPassword::PasswordVariants

Defined in:
lib/strong_password/password_variants.rb

Constant Summary collapse

LEET_SPEAK_1 = 
{
  "@" => "a",
  "!" => "i",
  "$" => "s",
  "1" => "i",
  "2" => "z",
  "3" => "e",
  "4" => "a",
  "5" => "s",
  "6" => "g",
  "7" => "t",
  "8" => "b",
  "9" => "g",
  "0" => "o"
}
LEET_SPEAK_2 = 
{
  "@" => "a",
  "!" => "i",
  "$" => "s",
  "1" => "l",
  "2" => "z",
  "3" => "e",
  "4" => "a",
  "5" => "s",
  "6" => "g",
  "7" => "t",
  "8" => "b",
  "9" => "g",
  "0" => "o"
}
KEYBOARDMAP_DOWN_NOSHIFT = 
{
  "z" => "", 
  "x" => "", 
  "c" => "", 
  "v" => "", 
  "b" => "", 
  "n" => "", 
  "m" => "", 
  "," => "", 
  "." => "", 
  "/" => "", 
  "<" => "", 
  ">" => "", 
  "?" => ""
}
KEYBOARDMAP_DOWNRIGHT = 
{
  "a" => "z",
  "q" => "a",
  "1" => "q",
  "s" => "x",
  "w" => "s",
  "2" => "w",
  "d" => "c",
  "e" => "d",
  "3" => "e",
  "f" => "v",
  "r" => "f",
  "4" => "r",
  "g" => "b",
  "t" => "g",
  "5" => "t",
  "h" => "n",
  "y" => "h",
  "6" => "y",
  "j" => "m",
  "u" => "j",
  "7" => "u",
  "i" => "k",
  "8" => "i",
  "o" => "l",
  "9" => "o",
  "0" => "p"
}
KEYBOARDMAP_DOWNLEFT = 
{
  "2" => "q",
  "w" => "a",
  "3" => "w",
  "s" => "z",
  "e" => "s",
  "4" => "e",
  "d" => "x",
  "r" => "d",
  "5" => "r",
  "f" => "c",
  "t" => "f",
  "6" => "t",
  "g" => "v",
  "y" => "g",
  "7" => "y",
  "h" => "b",
  "u" => "h",
  "8" => "u",
  "j" => "n",
  "i" => "j",
  "9" => "i",
  "k" => "m",
  "o" => "k",
  "0" => "o",
  "p" => "l",
  "-" => "p"
}

Class Method Summary collapse

Class Method Details

.all_variants(password) ⇒ Object

Returns all variants of a given password including the password itself



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# File 'lib/strong_password/password_variants.rb', line 110

def self.all_variants(password)
  passwords = [password.dup.downcase]
  passwords += keyboard_shift_variants(password)
  passwords += leet_speak_variants(password)
  passwords.uniq
end

.keyboard_shift_variants(password) ⇒ Object

Returns all keyboard shifted variants of a given password



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# File 'lib/strong_password/password_variants.rb', line 118

def self.keyboard_shift_variants(password)
  password = password.dup.downcase
  variants = []
  
  if (password == password.tr(KEYBOARDMAP_DOWN_NOSHIFT.keys.join, KEYBOARDMAP_DOWN_NOSHIFT.values.join))
    variant = password.tr(KEYBOARDMAP_DOWNRIGHT.keys.join, KEYBOARDMAP_DOWNRIGHT.values.join)
    variants << variant
    variants << variant.reverse

    variant = password.tr(KEYBOARDMAP_DOWNLEFT.keys.join, KEYBOARDMAP_DOWNLEFT.values.join)
    variants << variant
    variants << variant.reverse
  end
  variants
end

.leet_speak_variants(password) ⇒ Object

Returns all leet speak variants of a given password



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# File 'lib/strong_password/password_variants.rb', line 135

def self.leet_speak_variants(password)
  password = password.dup.downcase
  variants = []

  leet = password.tr(LEET_SPEAK_1.keys.join, LEET_SPEAK_1.values.join)
  if leet != password
    variants << leet
    variants << leet.reverse
  end

  leet_l = password.tr(LEET_SPEAK_2.keys.join, LEET_SPEAK_2.values.join)
  if (leet_l != password && leet_l != leet)
    variants << leet_l
    variants << leet_l.reverse
  end
  variants
end