Redmine

module ItgnModule

    #AES Encryption key

    Rails.configuration.itgn_consent_library_key = "redacted"

    @@seckey = Rails.configuration.itgn_consent_library_key

    require 'openssl'

    require 'digest'

    def access_level

        if User.current.admin?

            access_level = 3

        else

            if User.current.groups.where(:lastname=>"ITGN Consent Library Editor").count == 1

                access_level = 2

            else

                if User.current.groups.where(:lastname=>"ITGN Consent Library Query").count == 1

                    access_level = 1

                else

                    access_level = 0

                end

            end

        end

        access_level

    end

    def encrypt (val)

        cipher_encrypt = OpenSSL::Cipher::AES.new(256, :CBC).encrypt

        cipher_encrypt.key = (Digest::SHA1.hexdigest @@seckey)[0..31]

        rv = cipher_encrypt.update(val) + cipher_encrypt.final

        rv

    end

    def decrypt(val)

        return val if val.nil?

        cipher_decrypt = OpenSSL::Cipher::AES.new(256, :CBC).decrypt

        cipher_decrypt.key = (Digest::SHA1.hexdigest @@seckey)[0..31]

        rv = cipher_decrypt.update(val) + cipher_decrypt.final

        rv

    end

end