base64.lua
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base64.lua
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	--[[
	Copyright 2020 Matthew Hesketh <matthew@matthewhesketh.com>
	This code is licensed under the MIT. See LICENSE for details.
	]]

	local base64 = {}
	local mattata = require('mattata')
	local b64 = require('base64')

	function base64:init()
	base64.commands = mattata.commands(self.info.username):command('base64'):command('b64'):command('dbase64'):command('db64').table
	base64.help = '/base64 <text> - Encodes the given text in base64. Use /dbase64 or /db64 to turn base64-encoded text into plaintext. Alias: /b64.'
	end

	function base64.on_message(_, message)
	local input = message.reply and message.reply.text or mattata.input(message.text)
	if not input then
	return mattata.send_reply(message, base64.help)
	end
	local output = b64.encode(input)
	if message.command == 'dbase64' or message.command == 'db64' then
	output = b64.decode(input)
	end
	if not output then
	return mattata.send_reply(message, 'That\'s not valid base64-encoded text!')
	elseif utf8.len(output) > 4096 then
	return mattata.send_reply(message, 'That\'s too much text for me to give you. But you can have a cookie instead. ' .. utf8.char(127850))
	end
	local success = mattata.send_reply(message, output)
	if not success then
	return mattata.send_reply(message, 'That\'s not valid base64-encoded text!')
	end
	return success
	end

	return base64