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require 'securerandom'
class Trocla
class Util
class << self
def random_str(length=12, charset=:undef)
if charset == 'alphanumeric'
(1..length).collect{|a| normal_chars[SecureRandom.random_number(normal_chars.size)] }.join.to_s
elsif charset == 'special_shellsafe'
(1..length).collect{|a| safechars[SecureRandom.random_number(safechars.size)] }.join.to_s
else
(1..length).collect{|a| chars[SecureRandom.random_number(chars.size)] }.join.to_s
end
end
def salt(length=8)
(1..length).collect{|a| normal_chars[SecureRandom.random_number(normal_chars.size)] }.join.to_s
end
private
def chars
@chars ||= normal_chars + special_chars
end
def safechars
@chars ||= normal_chars + shellsafe_chars
end
def normal_chars
@normal_chars ||= ('a'..'z').to_a + ('A'..'Z').to_a + ('0'..'9').to_a
end
def special_chars
@special_chars ||= "+*%/()@&=?![]{}-_.,;:".split(//)
end
def shellsafe_chars
@shellsafe_chars ||= "+%/@=?_.,:".split(//)
end
end
end
end
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