34 lines
		
	
	
		
			1021 B
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			1021 B
		
	
	
	
		
			Ruby
		
	
	
	
| # frozen_string_literal: true
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| 
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| module Gitlab
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|   module Database
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|     # Class for casting binary data to hexadecimal SHA256 hashes (and vice-versa).
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|     #
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|     # Using Sha256Attribute allows you to store SHA256 values as binary while still
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|     # using them as if they were stored as string values. This gives you the
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|     # ease of use of string values, but without the storage overhead.
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|     class Sha256Attribute < ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Bytea
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|       # Casts binary data to a SHA256 and remove trailing = and newline from encode64
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|       def deserialize(value)
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|         value = super(value)
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|         if value.present?
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|           Base64.encode64(value).delete("=").chomp("\n")
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|         else
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|           nil
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|         end
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|       end
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| 
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|       # Casts a SHA256 in a proper binary format. which is 32 bytes long
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|       def serialize(value)
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|         arg = if value.present?
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|                 Base64.decode64(value)
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|               else
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|                 nil
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|               end
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| 
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|         super(arg)
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|       end
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|     end
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|   end
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| end
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