mirror of
https://github.com/ENSL/ensl.org.git
synced 2024-11-15 09:21:25 +00:00
63 lines
No EOL
1.2 KiB
Ruby
63 lines
No EOL
1.2 KiB
Ruby
module Verification
|
|
def Verification.verify input
|
|
md5 = Digest::MD5.hexdigest("9WvcZ9hX" + input + "KF7L4luQ").upcase.split(//)
|
|
chars = ["A", "B", "C", "D", "E", "F"]
|
|
nums = []
|
|
lastPos = md5[31].to_i
|
|
result = ""
|
|
|
|
for i in 0..9
|
|
pos = md5[i].to_i
|
|
|
|
if pos == 0
|
|
pos = lastPos ** (i % 4)
|
|
elsif (pos % 4) == 0
|
|
pos = pos * lastPos + i
|
|
elsif (pos % 3) == 0
|
|
pos = pos ** (i % 4)
|
|
elsif (pos % 2) == 0
|
|
pos = pos * i + pos
|
|
end
|
|
|
|
pos = (pos > 31) ? (pos % 32) : pos
|
|
curChar = md5[31 - pos]
|
|
curNum = curChar.to_i
|
|
|
|
if nums.include? curNum
|
|
if curNum == 0
|
|
curChar = chars[pos % 6]
|
|
else
|
|
curChar = (pos % 10).to_s
|
|
end
|
|
curNum = curChar.to_i
|
|
end
|
|
|
|
nums << curNum
|
|
result << curChar
|
|
lastPos = pos
|
|
end
|
|
|
|
return result
|
|
end
|
|
|
|
def Verification.uncrap str
|
|
str.to_s.gsub(/[^A-Za-z0-9_\-]/, "")
|
|
end
|
|
|
|
def Verification.random_string len
|
|
chars = ("a".."z").to_a + ("A".."Z").to_a + ("0".."9").to_a
|
|
str = ""
|
|
1.upto(len) do |i|
|
|
str << chars[rand(chars.size-1)]
|
|
end
|
|
return str
|
|
end
|
|
|
|
# TODO: rikki?
|
|
def Verification.contain params, filter
|
|
(params.instance_of?(Array) ? params : params.keys).each do |key|
|
|
return false unless filter.include? key.to_sym
|
|
end
|
|
return true
|
|
end
|
|
end |