mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-16 03:48:24 +00:00
378 lines
9 KiB
PHP
378 lines
9 KiB
PHP
<?php
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/**
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* Send mail using SMTP protocol
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.Network.Email
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* @since CakePHP(tm) v 2.0.0
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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App::uses('AbstractTransport', 'Network/Email');
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App::uses('CakeSocket', 'Network');
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/**
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* Send mail using SMTP protocol
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*
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* @package Cake.Network.Email
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*/
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class SmtpTransport extends AbstractTransport {
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/**
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* Socket to SMTP server
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*
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* @var CakeSocket
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*/
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protected $_socket;
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/**
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* CakeEmail
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*
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* @var CakeEmail
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*/
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protected $_cakeEmail;
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/**
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* Content of email to return
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*
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* @var string
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*/
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protected $_content;
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/**
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* The response of the last sent SMTP command.
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*
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* @var array
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*/
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protected $_lastResponse = array();
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/**
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* Returns the response of the last sent SMTP command.
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*
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* A response consists of one or more lines containing a response
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* code and an optional response message text:
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* ```
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* array(
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* array(
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* 'code' => '250',
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* 'message' => 'mail.example.com'
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* ),
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* array(
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* 'code' => '250',
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* 'message' => 'PIPELINING'
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* ),
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* array(
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* 'code' => '250',
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* 'message' => '8BITMIME'
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* ),
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* // etc...
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* )
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* ```
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*
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* @return array
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*/
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public function getLastResponse() {
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return $this->_lastResponse;
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}
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/**
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* Send mail
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*
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* @param CakeEmail $email CakeEmail
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* @return array
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* @throws SocketException
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*/
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public function send(CakeEmail $email) {
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$this->_cakeEmail = $email;
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$this->_connect();
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$this->_auth();
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$this->_sendRcpt();
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$this->_sendData();
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$this->_disconnect();
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return $this->_content;
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}
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/**
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* Set the configuration
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*
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* @param array $config Configuration options.
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* @return array Returns configs
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*/
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public function config($config = null) {
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if ($config === null) {
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return $this->_config;
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}
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$default = array(
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'host' => 'localhost',
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'port' => 25,
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'timeout' => 30,
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'username' => null,
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'password' => null,
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'client' => null,
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'tls' => false,
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'ssl_allow_self_signed' => false
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);
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$this->_config = array_merge($default, $this->_config, $config);
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return $this->_config;
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}
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/**
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* Parses and stores the reponse lines in `'code' => 'message'` format.
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*
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* @param array $responseLines Response lines to parse.
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* @return void
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*/
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protected function _bufferResponseLines(array $responseLines) {
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$response = array();
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foreach ($responseLines as $responseLine) {
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if (preg_match('/^(\d{3})(?:[ -]+(.*))?$/', $responseLine, $match)) {
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$response[] = array(
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'code' => $match[1],
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'message' => isset($match[2]) ? $match[2] : null
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);
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}
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}
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$this->_lastResponse = array_merge($this->_lastResponse, $response);
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}
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/**
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* Connect to SMTP Server
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*
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* @return void
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* @throws SocketException
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*/
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protected function _connect() {
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$this->_generateSocket();
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if (!$this->_socket->connect()) {
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throw new SocketException(__d('cake_dev', 'Unable to connect to SMTP server.'));
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}
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$this->_smtpSend(null, '220');
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if (isset($this->_config['client'])) {
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$host = $this->_config['client'];
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} elseif ($httpHost = env('HTTP_HOST')) {
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list($host) = explode(':', $httpHost);
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} else {
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$host = 'localhost';
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}
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try {
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$this->_smtpSend("EHLO {$host}", '250');
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if ($this->_config['tls']) {
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$this->_smtpSend("STARTTLS", '220');
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$this->_socket->enableCrypto('tls');
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$this->_smtpSend("EHLO {$host}", '250');
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}
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} catch (SocketException $e) {
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if ($this->_config['tls']) {
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throw new SocketException(__d('cake_dev', 'SMTP server did not accept the connection or trying to connect to non TLS SMTP server using TLS.'));
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}
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try {
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$this->_smtpSend("HELO {$host}", '250');
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} catch (SocketException $e2) {
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throw new SocketException(__d('cake_dev', 'SMTP server did not accept the connection.'));
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}
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}
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}
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/**
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* Send authentication
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*
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* @return void
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* @throws SocketException
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*/
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protected function _auth() {
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if (isset($this->_config['username']) && isset($this->_config['password'])) {
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$replyCode = $this->_smtpSend('AUTH LOGIN', '334|500|502|504');
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if ($replyCode == '334') {
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try {
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$this->_smtpSend(base64_encode($this->_config['username']), '334');
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} catch (SocketException $e) {
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throw new SocketException(__d('cake_dev', 'SMTP server did not accept the username.'));
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}
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try {
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$this->_smtpSend(base64_encode($this->_config['password']), '235');
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} catch (SocketException $e) {
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throw new SocketException(__d('cake_dev', 'SMTP server did not accept the password.'));
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}
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} elseif ($replyCode == '504') {
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throw new SocketException(__d('cake_dev', 'SMTP authentication method not allowed, check if SMTP server requires TLS.'));
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} else {
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throw new SocketException(__d('cake_dev', 'AUTH command not recognized or not implemented, SMTP server may not require authentication.'));
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}
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}
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}
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/**
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* Prepares the `MAIL FROM` SMTP command.
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*
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* @param string $email The email address to send with the command.
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* @return string
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*/
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protected function _prepareFromCmd($email) {
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return 'MAIL FROM:<' . $email . '>';
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}
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/**
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* Prepares the `RCPT TO` SMTP command.
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*
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* @param string $email The email address to send with the command.
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* @return string
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*/
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protected function _prepareRcptCmd($email) {
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return 'RCPT TO:<' . $email . '>';
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}
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/**
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* Prepares the `from` email address.
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*
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* @return array
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*/
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protected function _prepareFromAddress() {
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$from = $this->_cakeEmail->returnPath();
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if (empty($from)) {
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$from = $this->_cakeEmail->from();
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}
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return $from;
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}
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/**
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* Prepares the recipient email addresses.
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*
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* @return array
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*/
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protected function _prepareRecipientAddresses() {
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$to = $this->_cakeEmail->to();
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$cc = $this->_cakeEmail->cc();
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$bcc = $this->_cakeEmail->bcc();
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return array_merge(array_keys($to), array_keys($cc), array_keys($bcc));
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}
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/**
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* Prepares the message headers.
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*
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* @return array
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*/
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protected function _prepareMessageHeaders() {
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return $this->_cakeEmail->getHeaders(array('from', 'sender', 'replyTo', 'readReceipt', 'to', 'cc', 'subject'));
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}
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/**
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* Prepares the message body.
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*
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* @return string
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*/
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protected function _prepareMessage() {
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$lines = $this->_cakeEmail->message();
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$messages = array();
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foreach ($lines as $line) {
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if ((!empty($line)) && ($line[0] === '.')) {
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$messages[] = '.' . $line;
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} else {
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$messages[] = $line;
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}
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}
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return implode("\r\n", $messages);
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}
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/**
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* Send emails
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*
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* @return void
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* @throws SocketException
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*/
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protected function _sendRcpt() {
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$from = $this->_prepareFromAddress();
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$this->_smtpSend($this->_prepareFromCmd(key($from)));
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$emails = $this->_prepareRecipientAddresses();
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foreach ($emails as $email) {
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$this->_smtpSend($this->_prepareRcptCmd($email));
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}
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}
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/**
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* Send Data
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*
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* @return void
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* @throws SocketException
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*/
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protected function _sendData() {
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$this->_smtpSend('DATA', '354');
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$headers = $this->_headersToString($this->_prepareMessageHeaders());
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$message = $this->_prepareMessage();
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$this->_smtpSend($headers . "\r\n\r\n" . $message . "\r\n\r\n\r\n.");
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$this->_content = array('headers' => $headers, 'message' => $message);
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}
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/**
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* Disconnect
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*
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* @return void
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* @throws SocketException
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*/
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protected function _disconnect() {
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$this->_smtpSend('QUIT', false);
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$this->_socket->disconnect();
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}
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/**
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* Helper method to generate socket
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*
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* @return void
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* @throws SocketException
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*/
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protected function _generateSocket() {
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$this->_socket = new CakeSocket($this->_config);
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}
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/**
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* Protected method for sending data to SMTP connection
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*
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* @param string|null $data Data to be sent to SMTP server
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* @param string|bool $checkCode Code to check for in server response, false to skip
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* @return string|null The matched code, or null if nothing matched
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* @throws SocketException
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*/
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protected function _smtpSend($data, $checkCode = '250') {
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$this->_lastResponse = array();
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if ($data !== null) {
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$this->_socket->write($data . "\r\n");
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}
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while ($checkCode !== false) {
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$response = '';
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$startTime = time();
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while (substr($response, -2) !== "\r\n" && ((time() - $startTime) < $this->_config['timeout'])) {
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$response .= $this->_socket->read();
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}
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if (substr($response, -2) !== "\r\n") {
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throw new SocketException(__d('cake_dev', 'SMTP timeout.'));
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}
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$responseLines = explode("\r\n", rtrim($response, "\r\n"));
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$response = end($responseLines);
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$this->_bufferResponseLines($responseLines);
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if (preg_match('/^(' . $checkCode . ')(.)/', $response, $code)) {
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if ($code[2] === '-') {
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continue;
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}
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return $code[1];
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}
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throw new SocketException(__d('cake_dev', 'SMTP Error: %s', $response));
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}
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}
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}
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