331 lines
18 KiB
PHP
331 lines
18 KiB
PHP
<?php
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/**
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* AuthKeyHandler module.
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*
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* This file is part of MadelineProto.
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* MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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* MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Affero General Public License for more details.
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* You should have received a copy of the GNU General Public License along with MadelineProto.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Daniil Gentili <daniil@daniil.it>
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* @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
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* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
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*
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* @link https://docs.madelineproto.xyz MadelineProto documentation
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*/
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namespace danog\MadelineProto\VoIP;
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use danog\MadelineProto\Loop\Update\UpdateLoop;
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use danog\MadelineProto\Tools;
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/**
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* Manages the creation of the authorization key.
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*
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* https://core.telegram.org/mtproto/auth_key
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* https://core.telegram.org/mtproto/samples-auth_key
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*/
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trait AuthKeyHandler
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{
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private $calls = [];
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/**
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* Accept call from VoIP instance.
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*
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* @param \danog\MadelineProto\VoIP $instance Call instance
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* @param array $user User
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*
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* @internal
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*
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* @return mixed
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*/
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public function acceptCallFrom($instance, $user)
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{
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$promise = Tools::call((function () use ($instance, $user) {
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if (!$res = yield from $this->acceptCall($user)) {
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$instance->discard();
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return false;
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}
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return $instance;
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})());
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if ($this->wrapper && $this->wrapper->isAsync()) {
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return $promise;
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}
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return Tools::wait($promise);
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}
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/**
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* Undocumented function.
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*
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* @param \danog\MadelineProto\VoIP $instance Call instance
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* @param array $call Call info
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* @param array $reason Discard reason
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* @param array $rating Rating
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* @param boolean $need_debug Needs debug?
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*
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* @internal
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*
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* @return mixed
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*/
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public function discardCallFrom($instance, $call, $reason, $rating = [], $need_debug = true)
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{
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$promise = Tools::call(function () use ($instance, $call, $reason, $rating, $need_debug) {
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if (!$res = yield from $this->discardCall($call, $reason, $rating, $need_debug)) {
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return false;
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}
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return $instance;
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});
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if ($this->wrapper && $this->wrapper->isAsync()) {
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return $promise;
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}
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return Tools::wait($promise);
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}
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/**
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* Request VoIP call.
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*
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* @param mixed $user User
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*
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* @return void
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*/
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public function requestCall($user): \Generator
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw \danog\MadelineProto\Exception::extension('libtgvoip');
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}
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$user = (yield from $this->getInfo($user));
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if (!isset($user['InputUser']) || $user['InputUser']['_'] === 'inputUserSelf') {
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throw new \danog\MadelineProto\Exception(\danog\MadelineProto\Lang::$current_lang['peer_not_in_db']);
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}
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$user = $user['InputUser'];
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['calling_user'], $user['user_id']), \danog\MadelineProto\Logger::VERBOSE);
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$dh_config = (yield from $this->getDhConfig());
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$this->logger->logger(\danog\MadelineProto\Lang::$current_lang['generating_a'], \danog\MadelineProto\Logger::VERBOSE);
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$a = \tgseclib\Math\BigInteger::randomRange(\danog\MadelineProto\Magic::$two, $dh_config['p']->subtract(\danog\MadelineProto\Magic::$two));
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$this->logger->logger(\danog\MadelineProto\Lang::$current_lang['generating_g_a'], \danog\MadelineProto\Logger::VERBOSE);
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$g_a = $dh_config['g']->powMod($a, $dh_config['p']);
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$this->checkG($g_a, $dh_config['p']);
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$controller = new \danog\MadelineProto\VoIP(true, $user['user_id'], $this, \danog\MadelineProto\VoIP::CALL_STATE_REQUESTED);
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$controller->storage = ['a' => $a, 'g_a' => \str_pad($g_a->toBytes(), 256, \chr(0), \STR_PAD_LEFT)];
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$res = yield from $this->methodCallAsyncRead('phone.requestCall', ['user_id' => $user, 'g_a_hash' => \hash('sha256', $g_a->toBytes(), true), 'protocol' => ['_' => 'phoneCallProtocol', 'udp_p2p' => true, 'udp_reflector' => true, 'min_layer' => 65, 'max_layer' => \danog\MadelineProto\VoIP::getConnectionMaxLayer()]], ['datacenter' => $this->datacenter->curdc]);
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$controller->setCall($res['phone_call']);
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$this->calls[$res['phone_call']['id']] = $controller;
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yield $this->updaters[UpdateLoop::GENERIC]->resume();
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return $controller;
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}
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/**
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* Accept call.
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*
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* @param array $call Call
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*
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* @return \Generator
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*/
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public function acceptCall(array $call): \Generator
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw new \danog\MadelineProto\Exception();
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}
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if ($this->callStatus($call['id']) !== \danog\MadelineProto\VoIP::CALL_STATE_ACCEPTED) {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_error_1'], $call['id']));
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return false;
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}
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['accepting_call'], $this->calls[$call['id']]->getOtherID()), \danog\MadelineProto\Logger::VERBOSE);
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$dh_config = (yield from $this->getDhConfig());
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$this->logger->logger(\danog\MadelineProto\Lang::$current_lang['generating_b'], \danog\MadelineProto\Logger::VERBOSE);
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$b = \tgseclib\Math\BigInteger::randomRange(\danog\MadelineProto\Magic::$two, $dh_config['p']->subtract(\danog\MadelineProto\Magic::$two));
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$g_b = $dh_config['g']->powMod($b, $dh_config['p']);
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$this->checkG($g_b, $dh_config['p']);
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try {
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$res = yield from $this->methodCallAsyncRead('phone.acceptCall', ['peer' => $call, 'g_b' => $g_b->toBytes(), 'protocol' => ['_' => 'phoneCallProtocol', 'udp_reflector' => true, 'udp_p2p' => true, 'min_layer' => 65, 'max_layer' => \danog\MadelineProto\VoIP::getConnectionMaxLayer()]], ['datacenter' => $this->datacenter->curdc]);
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} catch (\danog\MadelineProto\RPCErrorException $e) {
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if ($e->rpc === 'CALL_ALREADY_ACCEPTED') {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_already_accepted'], $call['id']));
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return true;
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}
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if ($e->rpc === 'CALL_ALREADY_DECLINED') {
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$this->logger->logger(\danog\MadelineProto\Lang::$current_lang['call_already_declined']);
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yield from $this->discardCall($call['id'], ['_' => 'phoneCallDiscardReasonHangup']);
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return false;
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}
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throw $e;
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}
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$this->calls[$res['phone_call']['id']]->storage['b'] = $b;
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yield $this->updaters[UpdateLoop::GENERIC]->resume();
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return true;
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}
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/**
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* Confirm call.
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*
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* @param array $params Params
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*
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* @return \Generator
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*/
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public function confirmCall(array $params): \Generator
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw \danog\MadelineProto\Exception::extension('libtgvoip');
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}
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if ($this->callStatus($params['id']) !== \danog\MadelineProto\VoIP::CALL_STATE_REQUESTED) {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_error_2'], $params['id']));
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return false;
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}
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_confirming'], $this->calls[$params['id']]->getOtherID()), \danog\MadelineProto\Logger::VERBOSE);
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$dh_config = (yield from $this->getDhConfig());
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$params['g_b'] = new \tgseclib\Math\BigInteger((string) $params['g_b'], 256);
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$this->checkG($params['g_b'], $dh_config['p']);
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$key = \str_pad($params['g_b']->powMod($this->calls[$params['id']]->storage['a'], $dh_config['p'])->toBytes(), 256, \chr(0), \STR_PAD_LEFT);
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try {
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$res = (yield from $this->methodCallAsyncRead('phone.confirmCall', ['key_fingerprint' => \substr(\sha1($key, true), -8), 'peer' => ['id' => $params['id'], 'access_hash' => $params['access_hash'], '_' => 'inputPhoneCall'], 'g_a' => $this->calls[$params['id']]->storage['g_a'], 'protocol' => ['_' => 'phoneCallProtocol', 'udp_reflector' => true, 'min_layer' => 65, 'max_layer' => \danog\MadelineProto\VoIP::getConnectionMaxLayer()]], ['datacenter' => $this->datacenter->curdc]))['phone_call'];
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} catch (\danog\MadelineProto\RPCErrorException $e) {
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if ($e->rpc === 'CALL_ALREADY_ACCEPTED') {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_already_accepted'], $params['id']));
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return true;
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}
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if ($e->rpc === 'CALL_ALREADY_DECLINED') {
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$this->logger->logger(\danog\MadelineProto\Lang::$current_lang['call_already_declined']);
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yield from $this->discardCall($params['id'], ['_' => 'phoneCallDiscardReasonHangup']);
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return false;
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}
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throw $e;
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}
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$this->calls[$params['id']]->setCall($res);
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$visualization = [];
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$length = new \tgseclib\Math\BigInteger(\count(\danog\MadelineProto\Magic::$emojis));
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foreach (\str_split(\hash('sha256', $key.\str_pad($this->calls[$params['id']]->storage['g_a'], 256, \chr(0), \STR_PAD_LEFT), true), 8) as $number) {
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$number[0] = \chr(\ord($number[0]) & 0x7f);
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$visualization[] = \danog\MadelineProto\Magic::$emojis[(int) (new \tgseclib\Math\BigInteger($number, 256))->divide($length)[1]->toString()];
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}
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$this->calls[$params['id']]->setVisualization($visualization);
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$this->calls[$params['id']]->configuration['endpoints'] = \array_merge($res['connections'], $this->calls[$params['id']]->configuration['endpoints']);
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$this->calls[$params['id']]->configuration = \array_merge(['recv_timeout' => $this->config['call_receive_timeout_ms'] / 1000, 'init_timeout' => $this->config['call_connect_timeout_ms'] / 1000, 'data_saving' => \danog\MadelineProto\VoIP::DATA_SAVING_NEVER, 'enable_NS' => true, 'enable_AEC' => true, 'enable_AGC' => true, 'auth_key' => $key, 'auth_key_id' => \substr(\sha1($key, true), -8), 'call_id' => \substr(\hash('sha256', $key, true), -16), 'network_type' => \danog\MadelineProto\VoIP::NET_TYPE_ETHERNET], $this->calls[$params['id']]->configuration);
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$this->calls[$params['id']]->parseConfig();
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$res = $this->calls[$params['id']]->startTheMagic();
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return $res;
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}
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/**
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* Complete call handshake.
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*
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* @param array $params Params
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*
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* @return \Generator
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*/
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public function completeCall(array $params): \Generator
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw \danog\MadelineProto\Exception::extension('libtgvoip');
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}
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if ($this->callStatus($params['id']) !== \danog\MadelineProto\VoIP::CALL_STATE_ACCEPTED || !isset($this->calls[$params['id']]->storage['b'])) {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_error_3'], $params['id']));
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return false;
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}
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_completing'], $this->calls[$params['id']]->getOtherID()), \danog\MadelineProto\Logger::VERBOSE);
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$dh_config = (yield from $this->getDhConfig());
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if (\hash('sha256', $params['g_a_or_b'], true) != $this->calls[$params['id']]->storage['g_a_hash']) {
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throw new \danog\MadelineProto\SecurityException(\danog\MadelineProto\Lang::$current_lang['invalid_g_a']);
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}
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$params['g_a_or_b'] = new \tgseclib\Math\BigInteger((string) $params['g_a_or_b'], 256);
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$this->checkG($params['g_a_or_b'], $dh_config['p']);
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$key = \str_pad($params['g_a_or_b']->powMod($this->calls[$params['id']]->storage['b'], $dh_config['p'])->toBytes(), 256, \chr(0), \STR_PAD_LEFT);
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if (\substr(\sha1($key, true), -8) != $params['key_fingerprint']) {
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throw new \danog\MadelineProto\SecurityException(\danog\MadelineProto\Lang::$current_lang['fingerprint_invalid']);
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}
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$visualization = [];
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$length = new \tgseclib\Math\BigInteger(\count(\danog\MadelineProto\Magic::$emojis));
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foreach (\str_split(\hash('sha256', $key.\str_pad($params['g_a_or_b']->toBytes(), 256, \chr(0), \STR_PAD_LEFT), true), 8) as $number) {
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$number[0] = \chr(\ord($number[0]) & 0x7f);
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$visualization[] = \danog\MadelineProto\Magic::$emojis[(int) (new \tgseclib\Math\BigInteger($number, 256))->divide($length)[1]->toString()];
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}
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$this->calls[$params['id']]->setVisualization($visualization);
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$this->calls[$params['id']]->configuration['endpoints'] = \array_merge($params['connections'], $this->calls[$params['id']]->configuration['endpoints']);
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$this->calls[$params['id']]->configuration = \array_merge(['recv_timeout' => $this->config['call_receive_timeout_ms'] / 1000, 'init_timeout' => $this->config['call_connect_timeout_ms'] / 1000, 'data_saving' => \danog\MadelineProto\VoIP::DATA_SAVING_NEVER, 'enable_NS' => true, 'enable_AEC' => true, 'enable_AGC' => true, 'auth_key' => $key, 'auth_key_id' => \substr(\sha1($key, true), -8), 'call_id' => \substr(\hash('sha256', $key, true), -16), 'network_type' => \danog\MadelineProto\VoIP::NET_TYPE_ETHERNET], $this->calls[$params['id']]->configuration);
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$this->calls[$params['id']]->parseConfig();
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return $this->calls[$params['id']]->startTheMagic();
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}
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/**
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* Get call status.
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*
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* @param int $id Call ID
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*
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* @return integer
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*/
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public function callStatus(int $id): int
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw \danog\MadelineProto\Exception::extension('libtgvoip');
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}
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if (isset($this->calls[$id])) {
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return $this->calls[$id]->getCallState();
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}
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return \danog\MadelineProto\VoIP::CALL_STATE_NONE;
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}
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/**
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* Get call info.
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*
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* @param int $call Call ID
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*
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* @return array
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*/
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public function getCall(int $call): array
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw \danog\MadelineProto\Exception::extension('libtgvoip');
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}
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return $this->calls[$call];
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}
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/**
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* Discard call.
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*
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* @param array $call Call
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* @param string $reason Discard reason
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* @param array $rating Rating
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* @param boolean $need_debug Need debug?
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*
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* @return \Generator
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*/
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public function discardCall(array $call, array $reason, array $rating = [], bool $need_debug = true): \Generator
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{
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if (!\class_exists('\\danog\\MadelineProto\\VoIP')) {
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throw \danog\MadelineProto\Exception::extension('libtgvoip');
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}
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if (!isset($this->calls[$call['id']])) {
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return;
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}
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_discarding'], $call['id']), \danog\MadelineProto\Logger::VERBOSE);
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try {
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$res = yield from $this->methodCallAsyncRead('phone.discardCall', ['peer' => $call, 'duration' => \time() - $this->calls[$call['id']]->whenCreated(), 'connection_id' => $this->calls[$call['id']]->getPreferredRelayID(), 'reason' => $reason], ['datacenter' => $this->datacenter->curdc]);
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} catch (\danog\MadelineProto\RPCErrorException $e) {
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if (!\in_array($e->rpc, ['CALL_ALREADY_DECLINED', 'CALL_ALREADY_ACCEPTED'])) {
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throw $e;
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}
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}
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if (!empty($rating)) {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_set_rating'], $call['id']), \danog\MadelineProto\Logger::VERBOSE);
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yield from $this->methodCallAsyncRead('phone.setCallRating', ['peer' => $call, 'rating' => $rating['rating'], 'comment' => $rating['comment']], ['datacenter' => $this->datacenter->curdc]);
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}
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if ($need_debug && isset($this->calls[$call['id']])) {
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$this->logger->logger(\sprintf(\danog\MadelineProto\Lang::$current_lang['call_debug_saving'], $call['id']), \danog\MadelineProto\Logger::VERBOSE);
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yield from $this->methodCallAsyncRead('phone.saveCallDebug', ['peer' => $call, 'debug' => $this->calls[$call['id']]->getDebugLog()], ['datacenter' => $this->datacenter->curdc]);
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}
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$update = ['_' => 'updatePhoneCall', 'phone_call' => $this->calls[$call['id']]];
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if (isset($this->settings['pwr']['strict']) && $this->settings['pwr']['strict']) {
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$this->pwrUpdateHandler($update);
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} else {
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\in_array($this->settings['updates']['callback'], [['danog\\MadelineProto\\API', 'getUpdatesUpdateHandler'], 'getUpdatesUpdateHandler']) ? $this->getUpdatesUpdateHandler($update) : $this->settings['updates']['callback']($update);
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}
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unset($this->calls[$call['id']]);
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}
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/**
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* Check state of calls.
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*
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* @return void
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*/
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public function checkCalls(): void
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{
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\array_walk($this->calls, function ($controller, $id) {
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if ($controller->getCallState() === \danog\MadelineProto\VoIP::CALL_STATE_ENDED) {
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$controller->discard();
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}
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});
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}
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}
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