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Mikubot/bot/bot.lua

385 lines
8.9 KiB
Lua

http = require("socket.http")
json = (loadfile "./bot/JSON.lua")()
VERSION = 'v0.2'
function on_msg_receive (msg)
if msg_valid(msg) == false then
return
end
-- Check if command starts with ! eg !echo
if msg.text:sub(0,1) == '!' then
do_action(msg)
else
if is_image_url(msg.text) then
send_image_from_url (msg)
end
end
print('mark_read: '..get_receiver(msg))
mark_read(get_receiver(msg), ok_cb, false)
-- write_log_file(msg)
end
function ok_cb(extra, success, result)
end
function msg_valid(msg)
if msg.out then
return false
end
if msg.date < now then
return false
end
if msg.text == nil then
return false
end
if msg.unread == 0 then
return false
end
end
function send_image_from_url (msg)
last = string.get_last_word(msg.text)
last = last:match("[%w_:/.%%&-]+") -- Lets sanitize!
extension = string.get_extension_from_filename(last)
file_name = string.random(5)
file = "/tmp/"..file_name.."."..extension
sh = "curl --insecure -o '"..file.."' "..last
run_bash(sh)
send_photo(get_receiver(msg), file, ok_cb, false)
end
function is_image_url(text)
print ('IS image ' .. text ..'?')
last = string.get_last_word(text)
extension = string.get_extension_from_filename(last)
if extension == 'jpg' or extension == 'png' then
return true
end
return false
end
-- Where magic happens
function do_action(msg)
local receiver = get_receiver(msg)
if string.starts(msg.text, '!sh') then
text = run_sh(msg)
send_msg(receiver, text, ok_cb, false)
return
end
if string.starts(msg.text, '!uc3m') then
text = get_fortunes_uc3m()
send_msg(receiver, text, ok_cb, false)
return
end
if string.starts(msg.text, '!9gag') then
url, title = get_9GAG()
file_name = url:match("([^/]+)$")
file = "/tmp/"..file_name
sh = "curl -o '"..file.."' "..url
run_bash(sh)
send_photo(receiver, file, ok_cb, false)
send_msg(receiver, title, ok_cb, false)
return
end
if string.starts(msg.text, '!fortune') then
text = run_bash('fortune')
send_msg(receiver, text, ok_cb, false)
return
end
if string.starts(msg.text, '!forni') then
text = msg.text:sub(8,-1)
send_msg('Fornicio_2.0', text, ok_cb, false)
return
end
if string.starts(msg.text, '!fwd') then
fwd_msg (receiver, msg.id, ok_cb, false)
return
end
if string.starts(msg.text, '!cpu') then
text = run_bash('uname -snr') .. ' ' .. run_bash('whoami')
text = text .. '\n' .. run_bash('top -b |head -2')
send_msg(receiver, text, ok_cb, false)
return
end
if string.starts(msg.text, '!ping') then
print('receiver: '..receiver)
send_msg (receiver, 'pong', ok_cb, false)
return
end
if string.starts(msg.text, '!weather') then
if string.len(msg.text) <= 9 then
city = 'Madrid,ES'
else
city = msg.text:sub(10,-1)
end
text = get_weather(city)
send_msg(receiver, text, ok_cb, false)
return
end
if string.starts(msg.text, '!echo') then
echo = msg.text:sub(7,-1)
send_msg(receiver, echo, ok_cb, false)
return
end
if string.starts(msg.text, '!version') then
text = 'James Bot '.. VERSION
send_msg(receiver, text, ok_cb, false)
return
end
if string.starts(msg.text, '!help') then
text = [[!help : print this help
!ping : bot sends pong
!sh (text) : send commands to bash (only privileged users)
!echo (text) : echo the msg
!version : version info
!cpu : status (uname + top)
!fwd : forward msg
!forni : send text to group Fornicio
!fortune : print a random adage
!weather [city] : weather in that city (Madrid if not city)
!9gag : send random url image from 9gag
!uc3m : fortunes from Universidad Carlos III]]
send_msg(receiver, text, ok_cb, false)
return
end
end
function string.starts(String,Start)
return string.sub(String,1,string.len(Start))==Start
end
function load_config()
local f = assert(io.open('./bot/config.json', "r"))
local c = f:read "*a"
local config = json:decode(c)
if config.torrent_path then
print ("!sh command is enabled")
for v,user in pairs(config.sudo_users) do
print("Allowed user: " .. user)
end
end
-- print("Torrent path: " .. config.torrent_path)
f:close()
return config
end
function is_sudo(msg)
local var = false
-- Check users id in config
for v,user in pairs(config.sudo_users) do
if user == msg.from.id then
var = true
end
end
return var
end
function write_log_file(msg)
name = get_name(msg)
ret = name .. ' > ' .. msg.text
write_to_file(config.log_file, ret)
end
-- Saves a string to file
function write_to_file(filename, value)
if (value) then
local file = io.open(filename,"a")
file:write(value, "\n")
file:close()
end
end
function get_name(msg)
local name = msg.from.first_name
if name == nil then
name = msg.from.id
end
return name
end
function run_sh(msg)
name = get_name(msg)
text = ''
if config.sh_enabled == false then
text = '!sh command is disabled'
else
if is_sudo(msg) then
bash = msg.text:sub(4,-1)
text = run_bash(bash)
else
text = name .. ' you have no power here!'
end
end
return text
end
function run_bash(str)
local cmd = io.popen(str)
local result = cmd:read('*all')
cmd:close()
return result
end
function get_fortunes_uc3m()
math.randomseed(os.time())
local i = math.random(0,178) -- max 178
local web = "http://www.gul.es/fortunes/f"..i
b, c, h = http.request(web)
return b
end
function get_9GAG()
b = http.request("http://api-9gag.herokuapp.com/")
local gag = json:decode(b)
math.randomseed(os.time())
i = math.random(#gag) -- random max json table size (# is an operator o.O)
local link_image = gag[i].src
local title = gag[i].title
if link_image:sub(0,2) == '//' then
link_image = msg.text:sub(3,-1)
end
return link_image, title
end
function get_weather(location)
b, c, h = http.request("http://api.openweathermap.org/data/2.5/weather?q=" .. location .. "&units=metric")
weather = json:decode(b)
local city = weather.name
local country = weather.sys.country
temp = 'The temperature in ' .. city .. ' (' .. country .. ')'
temp = temp .. ' is ' .. weather.main.temp .. '°C'
conditions = 'Current conditions are: ' .. weather.weather[1].description
if weather.weather[1].main == 'Clear' then
conditions = conditions .. ''
elseif weather.weather[1].main == 'Clouds' then
conditions = conditions .. ' ☁☁'
elseif weather.weather[1].main == 'Rain' then
conditions = conditions .. ''
elseif weather.weather[1].main == 'Thunderstorm' then
conditions = conditions .. ' ☔☔☔☔'
end
return temp .. '\n' .. conditions
end
function string.random(length)
math.randomseed(os.time())
local str = "";
for i = 1, length do
math.random(97, 122)
str = str..string.char(math.random(97, 122));
end
return str;
end
function string.get_extension_from_filename( filename )
return filename:match( "%.([^%.]+)$" )
end
function string.get_last_word( words )
print ('Last word of: ' .. words)
local splitted = split_by_space ( words )
return splitted[#splitted]
end
function split_by_space ( text )
print ('Split: ' .. text)
words = {}
for word in string.gmatch(text, "[^%s]+") do
table.insert(words, word)
end
return words
end
function vardump(value, depth, key)
local linePrefix = ""
local spaces = ""
if key ~= nil then
linePrefix = "["..key.."] = "
end
if depth == nil then
depth = 0
else
depth = depth + 1
for i=1, depth do spaces = spaces .. " " end
end
if type(value) == 'table' then
mTable = getmetatable(value)
if mTable == nil then
print(spaces ..linePrefix.."(table) ")
else
print(spaces .."(metatable) ")
value = mTable
end
for tableKey, tableValue in pairs(value) do
vardump(tableValue, depth, tableKey)
end
elseif type(value) == 'function' or
type(value) == 'thread' or
type(value) == 'userdata' or
value == nil
then
print(spaces..tostring(value))
else
print(spaces..linePrefix.."("..type(value)..") "..tostring(value))
end
end
-- Start and load values
config = load_config()
our_id = 0
now = os.time()
function get_receiver(msg)
if msg.to.type == 'user' then
return 'user#id'..msg.from.id
end
if msg.to.type == 'chat' then
return 'chat#id'..msg.to.id
end
end
function on_our_id (id)
our_id = id
end
function on_user_update (user, what)
--vardump (user)
end
function on_chat_update (chat, what)
--vardump (chat)
end
function on_secret_chat_update (schat, what)
--vardump (schat)
end
function on_get_difference_end ()
end
function on_binlog_replay_end ()
started = 1
end