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Mikubot-2/otouto/drua-tg.lua

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--[[
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drua-tg
Based on JuanPotato's lua-tg (https://github.com/juanpotato/lua-tg),
modified to work more naturally from an API bot.
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Usage:
drua = require('drua-tg')
drua.IP = 'localhost' -- 'localhost' is default
drua.PORT = 4567 -- 4567 is default
drua.message(chat_id, text)
The MIT License (MIT)
Copyright (c) 2015-2016 Juan Potato
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
]]
local SOCKET = require('socket')
local comtab = {
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add = { 'chat_add_user %s %s', 'channel_invite %s %s' },
kick = { 'chat_del_user %s %s', 'channel_kick %s %s' },
rename = { 'rename_chat %s "%s"', 'rename_channel %s "%s"' },
link = { 'export_chat_link %s', 'export_channel_link %s' },
photo_set = { 'chat_set_photo %s %s', 'channel_set_photo %s %s' },
photo_get = { [0] = 'load_user_photo %s', 'load_chat_photo %s', 'load_channel_photo %s' },
info = { [0] = 'user_info %s', 'chat_info %s', 'channel_info %s' }
}
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local function format_target(target)
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target = tonumber(target)
if target < -1000000000000 then
target = 'channel#' .. math.abs(target) - 1000000000000
return target, 2
elseif target < 0 then
target = 'chat#' .. math.abs(target)
return target, 1
else
target = 'user#' .. target
return target, 0
end
end
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local function escape(text)
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text = text:gsub('\\', '\\\\')
text = text:gsub('\n', '\\n')
text = text:gsub('\t', '\\t')
text = text:gsub('"', '\\"')
return text
end
local drua = {
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IP = 'localhost',
PORT = 4567
}
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function drua.send(command, do_receive)
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local s = SOCKET.connect(drua.IP, drua.PORT)
assert(s, '\nUnable to connect to tg session.')
s:send(command..'\n')
local output
if do_receive then
output = string.match(s:receive('*l'), 'ANSWER (%d+)')
output = s:receive(tonumber(output)):gsub('\n$', '')
end
s:close()
return output
end
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function drua.message(target, text)
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target = format_target(target)
text = escape(text)
local command = 'msg %s "%s"'
command = command:format(target, text)
return drua.send(command)
end
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function drua.send_photo(target, photo)
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target = format_target(target)
local command = 'send_photo %s %s'
command = command:format(target, photo)
return drua.send(command)
end
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function drua.add_user(chat, target)
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local a
chat, a = format_target(chat)
target = format_target(target)
local command = comtab.add[a]:format(chat, target)
return drua.send(command)
end
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function drua.kick_user(chat, target)
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-- Get the group info so tg will recognize the target.
drua.get_info(chat)
local a
chat, a = format_target(chat)
target = format_target(target)
local command = comtab.kick[a]:format(chat, target)
return drua.send(command)
end
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function drua.rename_chat(chat, name)
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local a
chat, a = format_target(chat)
local command = comtab.rename[a]:format(chat, name)
return drua.send(command)
end
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function drua.export_link(chat)
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local a
chat, a = format_target(chat)
local command = comtab.link[a]:format(chat)
return drua.send(command, true)
end
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function drua.get_photo(chat)
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local a
chat, a = format_target(chat)
local command = comtab.photo_get[a]:format(chat)
local output = drua.send(command, true)
if output:match('FAIL') then
return false
else
return output:match('Saved to (.+)')
end
end
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function drua.set_photo(chat, photo)
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local a
chat, a = format_target(chat)
local command = comtab.photo_set[a]:format(chat, photo)
return drua.send(command)
end
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function drua.get_info(target)
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local a
target, a = format_target(target)
local command = comtab.info[a]:format(target)
return drua.send(command, true)
end
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function drua.channel_set_admin(chat, user, rank)
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chat = format_target(chat)
user = format_target(user)
local command = 'channel_set_admin %s %s %s'
command = command:format(chat, user, rank)
return drua.send(command)
end
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function drua.channel_set_about(chat, text)
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chat = format_target(chat)
text = escape(text)
local command = 'channel_set_about %s "%s"'
command = command:format(chat, text)
return drua.send(command)
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end
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function drua.block(user)
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return drua.send('block_user user#' .. user)
end
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function drua.unblock(user)
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return drua.send('unblock_user user#' .. user)
end
return drua