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anticrypto.lua
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anticrypto.lua
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--[[
Copyright 2020 Matthew Hesketh <matthew@matthewhesketh.com>
This code is licensed under the MIT. See LICENSE for details.
]]
local anticrypto = {}
local mattata = require('mattata')
local redis = require('libs.redis')
function anticrypto:on_new_message(message, configuration)
if 1+1 == 2 then return false end
if message.chat.type ~= 'supergroup' or tonumber(redis:get('messages:' .. message.from.id .. ':' .. message.chat.id)) > 20 or not message.photo or (mattata.is_group_admin(message.chat.id, message.from.id) and not mattata.is_global_admin(message.from.id)) then
return false
elseif not redis:sismember('anticrypto:groups', message.chat.id) then
return false
end
local file_id = message.photo[#message.photo].file_id
local file = mattata.get_file(file_id)
if not file then
return false
end
local file_name = file.result.file_path
local file_path = string.format('https://api.telegram.org/file/bot%s/%s', configuration.bot_token, file_name)
file = mattata.download_file(file_path, file_name:match('/(.-)$'), configuration.download_location)
if not file then
return false
end
local command = string.format('tesseract --tessdata-dir /home/matt/matticatebot/tesseract/ --oem 3 %s stdout', file)
local exec = io.popen(command)
local contents = exec:read('*all')
exec:close()
os.execute('rm ' .. file)
local matches = {
'[Tt][Ee][Ss][LlTt][Aa]',
'[Bb][Ii][Tt][Cc][Oo][Ii][Nn]',
'[AaEe]Ll][Oo][Nn] ?[Mm][Nn]?[Uu][Ss][Kk]',
'[Gg][Ii][Vv][Ee][Aa][Ww][Aa][Yy]',
'[Ff][Ii][Nn][Aa][Nn][Cc][Ii][Aa][Ll]',
'[Dd][Rr][Oo][Pp][EeAa][LlI][Oo][Nn]'
}
for _, match in pairs(matches) do
if contents:match(match) then
local punishment = mattata.get_setting(message.chat.id, 'ban not kick')
local action = punishment and mattata.ban_chat_member or mattata.kick_chat_member
action(message.chat.id, message.from.id)
punishment = punishment and 'banned' or 'kicked'
local bot_username = mattata.get_formatted_user(self.info.id, self.info.first_name, 'html')
local offender_username = mattata.get_formatted_user(message.from.id, message.from.first_name, 'html')
local output
if mattata.get_setting(message.chat.id, 'log administrative actions') then
local log_chat = mattata.get_log_chat(message.chat.id)
output = '%s <code>[%s]</code> has %s %s <code>[%s]</code> from %s <code>[%s]</code> for sending crypto-spam.\n%s %s'
output = string.format(output, bot_username, self.info.id, punishment, offender_username, message.from.id, mattata.escape_html(message.chat.title), message.chat.id, '#chat' .. tostring(message.chat.id):gsub('^-100', ''), '#user' .. message.from.id)
mattata.send_message(log_chat, output, 'html')
else
output = string.format('%s %s for sending crypto-spam.', punishment:gsub('^%l', string.upper), offender_username)
mattata.send_message(message.chat.id, output, 'html')
end
return mattata.delete_message(message.chat.id, message.message_id)
end
end
return mattata.send_message(configuration.admins[1], contents)
end
return anticrypto

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