131 lines
3.9 KiB
Lua
Executable File
131 lines
3.9 KiB
Lua
Executable File
local bot = {}
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-- Requires are moved to init to allow for reloads.
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local bindings -- Load Telegram bindings.
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local utilities -- Load miscellaneous and cross-plugin functions.
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bot.version = '3.7'
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function bot:init() -- The function run when the bot is started or reloaded.
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bindings = require('bindings')
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utilities = require('utilities')
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self.config = require('config') -- Load configuration file.
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if self.config.bot_api_key == '' then
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error('You did not set your bot token in config.lua!')
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end
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self.BASE_URL = 'https://api.telegram.org/bot' .. self.config.bot_api_key
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-- Fetch bot information. Try until it succeeds.
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repeat
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print('Fetching bot information...')
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self.info = bindings.getMe(self)
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until self.info
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self.info = self.info.result
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-- Load the "database"! ;)
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if not self.database then
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self.database = utilities.load_data(self.info.username..'.db')
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end
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self.plugins = {} -- Load plugins.
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for _,v in ipairs(self.config.plugins) do
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local p = require('plugins.'..v)
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table.insert(self.plugins, p)
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if p.init then p.init(self) end
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end
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print('@' .. self.info.username .. ', AKA ' .. self.info.first_name ..' ('..self.info.id..')')
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self.last_update = self.last_update or 0 -- Set loop variables: Update offset,
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self.last_cron = self.last_cron or os.date('%M') -- the time of the last cron job,
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self.is_started = true -- and whether or not the bot should be running.
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self.database.users = self.database.users or {} -- Table to cache userdata.
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self.database.users[tostring(self.info.id)] = self.info
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end
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function bot:on_msg_receive(msg) -- The fn run whenever a message is received.
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-- Cache user info for those involved.
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utilities.create_user_entry(self, msg.from)
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if msg.forward_from and msg.forward_from.id ~= msg.from.id then
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utilities.create_user_entry(self, msg.forward_from)
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elseif msg.reply_to_message and msg.reply_to_message.from.id ~= msg.from.id then
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utilities.create_user_entry(self, msg.reply_to_message.from)
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end
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if msg.date < os.time() - 5 then return end -- Do not process old messages.
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msg = utilities.enrich_message(msg)
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if msg.text:match('^/start .+') then
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msg.text = '/' .. utilities.input(msg.text)
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msg.text_lower = msg.text:lower()
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end
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for _,v in ipairs(self.plugins) do
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for _,w in pairs(v.triggers) do
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if string.match(msg.text:lower(), w) then
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local success, result = pcall(function()
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return v.action(self, msg)
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end)
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if not success then
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bindings.sendReply(self, msg, 'Sorry, an unexpected error occurred.')
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utilities.handle_exception(self, result, msg.from.id .. ': ' .. msg.text)
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return
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end
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-- If the action returns a table, make that table the new msg.
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if type(result) == 'table' then
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msg = result
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-- If the action returns true, continue.
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elseif result ~= true then
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return
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end
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end
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end
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end
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end
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function bot:run()
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bot.init(self) -- Actually start the script. Run the bot_init function.
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while self.is_started do -- Start a loop while the bot should be running.
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local res = bindings.getUpdates(self, self.last_update+1) -- Get the latest updates!
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if res then
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for _,v in ipairs(res.result) do -- Go through every new message.
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self.last_update = v.update_id
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if v.message then
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bot.on_msg_receive(self, v.message)
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end
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end
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else
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print(self.config.errors.connection)
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end
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if self.last_cron ~= os.date('%M') then -- Run cron jobs every minute.
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self.last_cron = os.date('%M')
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utilities.save_data(self.info.username..'.db', self.database) -- Save the database.
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for i,v in ipairs(self.plugins) do
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if v.cron then -- Call each plugin's cron function, if it has one.
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local res, err = pcall(function() v.cron(self) end)
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if not res then
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utilities.handle_exception(self, err, 'CRON: ' .. i)
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end
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end
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end
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end
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end
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-- Save the database before exiting.
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utilities.save_data(self.info.username..'.db', self.database)
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print('Halted.')
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end
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return bot
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