class Cipher
Public Class Methods
new(prefix,payload,keys,keywords)
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# File lib/logstash/filters/cipher.rb, line 5 def initialize(prefix,payload,keys,keywords) @prefix=prefix @payload=payload @keys=keys @keywords=keywords end
Public Instance Methods
decode(payload)
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Decode Payload and unescape Characters
# File lib/logstash/filters/cipher.rb, line 18 def decode(payload) return Base64.decode64(URI.unescape(payload)) end
extract(payload)
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Extract according to prefix
# File lib/logstash/filters/cipher.rb, line 13 def extract(payload) return payload[@prefix.length..@payload.length] end
match(payload,prefix,keys,keywords)
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# File lib/logstash/filters/cipher.rb, line 22 def match(payload,prefix,keys,keywords) #Match, Payload result = [false,''] payload = decode(extract(payload)) keys.each do |key| begin payload = decrypt(payload, Base64.decode64(key)) keywords.each do |keyword| if payload.include? keyword result[0] = true result[1] = payload.to_s break end end rescue return result end end return result end