29 lines
694 B
Crystal
29 lines
694 B
Crystal
require "io/hexdump"
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def to_message (user_type : Int, message : String)
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payload = Bytes.new (6 + message.to_slice.size)
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# true start
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payload[0] = 1.to_u8
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IO::ByteFormat::NetworkEndian.encode message.to_slice.size, (payload + 1)
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# second part: user message
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payload[5] = user_type.to_u8
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(payload + 6).copy_from message.to_slice
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return payload
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end
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def print_hexa(message : String, aroundmsg : String)
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puts "#{aroundmsg} [["
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m = IO::Memory.new(message)
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io = IO::Hexdump.new(m, output: STDERR, read: true)
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buffer = Bytes.new 4000
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io.read (buffer) # reading = should print
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puts "]] #{aroundmsg}"
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end
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# str = to_message(42, "coucou")
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# print_hexa str, "message sent"
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# ws.send str
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