58 lines
1.8 KiB
Ruby
58 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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require_relative 'bytes'
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class Map
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attr_reader :name, :crc, :crc_str, :crc_arr, :size, :sha256, :sha256_str, :sha256_arr
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def initialize(attr = {})
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# map name as String
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@name = attr[:name]
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# crc hex encoded string (8 characters / 4 bytes)
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@crc = attr[:crc]
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raise "Error: map crc invalid type: #{@crc.class}" unless @crc.instance_of?(String)
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unless @crc.match(/[a-fA-F0-9]{8}/) # str encoded hex
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raise "Error: map crc raw string expects size 8 but got #{@crc.size}"
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end
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@crc_str = @crc
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@crc_arr = str_bytes(@crc)
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@crc = @crc_arr.pack('C*')
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# size has to be a positive Integer
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@size = attr[:size]
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# sha256 can be:
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# hex encoded string (64 characters / 32 bytes)
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# '491af17a510214506270904f147a4c30ae0a85b91bb854395bef8c397fc078c3'
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#
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# raw string (32 characters)
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# array of integers representing the bytes (32 elements)
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@sha256 = attr[:sha256]
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if @sha256.instance_of?(String)
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if @sha256.match(/[a-fA-F0-9]{64}/) # str encoded hex
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@sha256_str = @sha256
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@sha256_arr = str_bytes(@sha256)
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@sha256 = @sha256_arr.pack('C*')
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elsif @sha256.length == 32 # raw byte string
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@sha256_arr = @sha256
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@sha256 = @sha256_arr.pack('C*')
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@sha256_str = str_hex(@sha256).gsub(' ', '')
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else
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raise "Error: map sha256 raw string expects size 64 but got #{@sha256.size}"
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end
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elsif @sha256.instance_of?(Array) # int byte array
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raise "Error: map sha256 array expects size 32 but got #{@sha256.size}" if @sha256.size != 32
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@sha256_arr = @sha256
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@sha256 = @sha256.pack('C*')
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@sha256_str = @sha256.map { |b| b.to_s(16).rjust(2, '0') }.join
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else
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raise "Error: map sha256 invalid type: #{@sha256.class}"
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end
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end
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end
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