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unmute.lua
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unmute.lua
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--[[
Copyright 2020 Matthew Hesketh <matthew@matthewhesketh.com>
This code is licensed under the MIT. See LICENSE for details.
]]
local unmute = {}
local mattata = require('mattata')
local redis = require('libs.redis')
function unmute:init()
unmute.commands = mattata.commands(self.info.username):command('unmute').table
unmute.help = '/unmute [user] - Unmutes a user in the current chat. This command can only be used by group admins.'
end
function unmute:on_message(message, _, language)
if message.chat.type ~= 'supergroup' then
local output = language['errors']['supergroup']
return mattata.send_reply(message, output)
end
local reason = false
local user = false
local input = mattata.input(message)
-- check the message object for any users this command
-- is intended to be executed on
if message.reply then
user = message.reply.from.id
if input then
reason = input
end
elseif input and input:match(' ') then
user, reason = input:match('^(.-) (.-)$')
elseif input then
user = input
end
if not user then
local output = 'You need to specify the user you\'d like to unmute, either by username/ID or in reply.'
local success = mattata.send_force_reply(message, output)
if success then
mattata.set_command_action(message.chat.id, success.result.message_id, '/unmute')
end
return
end
if reason and type(reason) == 'string' and reason:match('^[Ff][Oo][Rr] ') then
reason = reason:match('^[Ff][Oo][Rr] (.-)$')
end
if tonumber(user) == nil and not user:match('^%@') then
user = '@' .. user
end
local user_object = mattata.get_user(user) or mattata.get_chat(user) -- resolve the username/ID to a user object
if not user_object then
local output = language['errors']['unknown']
return mattata.send_reply(message, output)
elseif user_object.result.id == self.info.id then
return false -- we don't want to use this on ourselves
end
local bot_status = mattata.get_chat_member(message.chat.id, self.info.id)
if not bot_status then
return false
elseif not bot_status.result.can_restrict_members then
return mattata.send_reply(message, 'It appears I don\'t have the required permissions required in order to unmute that user. Please amend this and try again!')
end
user_object = user_object.result
local status = mattata.get_chat_member(message.chat.id, user_object.id)
local is_admin = mattata.is_group_admin(message.chat.id, user_object.id)
if not status then
return mattata.send_reply(message, 'I couldn\'t retrieve any information about that user!')
elseif is_admin then -- we won't try and unmute moderators and administrators.
return mattata.send_reply(message, 'I can\'t unmute that user because they\'re an admin in this chat!')
end
local default_permissions = mattata.get_chat(message.chat.id)
if not default_permissions then
return mattata.send_reply(message, 'I couldn\'t get the default permissions for this group!')
end
default_permissions = default_permissions.result.permissions
local success = mattata.restrict_chat_member(message.chat.id, user_object.id, os.time(), default_permissions) -- attempt to unmute the user in the group, restoring the user to the original group permissions
if not success then
return mattata.send_reply(message, 'I couldn\'t unmute that user in this group, because it appears I don\'t have permission to!')
end
reason = reason and ', for ' .. reason or ''
local admin_username = mattata.get_formatted_user(message.from.id, message.from.first_name, 'html')
local unmuted_username = mattata.get_formatted_user(user_object.id, user_object.first_name, 'html')
redis:hincrby('chat:' .. message.chat.id .. ':' .. user_object.id, 'unmutes', 1)
if mattata.get_setting(message.chat.id, 'log administrative actions') then
local log_chat = mattata.get_log_chat(message.chat.id)
local output = '%s <code>[%s]</code> has unmuted %s <code>[%s]</code> in %s <code>[%s]</code>%s.'
output = string.format(output, admin_username, message.from.id, unmuted_username, user_object.id, mattata.escape_html(message.chat.title), message.chat.id, reason)
mattata.send_message(log_chat, output, 'html')
end
if message.reply and mattata.get_setting(message.chat.id, 'delete reply on action') then
mattata.delete_message(message.chat.id, message.reply.message_id)
end
local output = '%s has unmuted %s%s.'
output = string.format(output, admin_username, unmuted_username, reason)
return mattata.send_message(message.chat.id, output, 'html')
end
return unmute

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