545 lines
16 KiB
PHP
545 lines
16 KiB
PHP
<?php
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/**
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* @copyright (C)2016-2099 Hnaoyun Inc.
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* @author XingMeng
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* @email hnxsh@foxmail.com
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* @date 2018年3月21日
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* 邮件发送类
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*/
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namespace core\basic;
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class Smtp
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{
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// 邮件传输代理服务器地址
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protected $sendServer;
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// 邮件传输代理服务器端口
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protected $port;
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// 是否是安全连接
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protected $isSecurity;
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// 邮件传输代理用户名
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protected $userName;
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// 邮件传输代理密码
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protected $password;
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// 发件人
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protected $from;
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// 收件人
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protected $to = array();
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// 抄送
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protected $cc = array();
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// 秘密抄送
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protected $bcc = array();
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// 主题
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protected $subject;
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// 邮件正文
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protected $body;
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// 附件
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protected $attachment = array();
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// 调试模式
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protected $debug;
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// 错误信息
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protected $errorMessage;
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// 资源句柄
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protected $socket;
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/**
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* 设置邮件传输代理，默认为安全链接
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*
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* @param string $server
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* 代理服务器的ip或者域名
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* @param string $username
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* 认证账号
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* @param string $password
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* 认证密码
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* @param int $port
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* 代理服务器的端口，smtp默认25号端口
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* @param boolean $isSecurity
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* 到服务器的连接是否为安全连接，默认false
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* @return boolean
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*/
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public function __construct($server = "", $username = "", $password = "", $port = 465, $isSecurity = true, $debug = false)
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{
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if ($server) {
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$this->sendServer = $server;
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$this->port = $port;
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$this->isSecurity = $isSecurity ? true : false;
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$this->debug = $debug;
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$this->userName = empty($username) ? "" : base64_encode($username);
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$this->password = empty($password) ? "" : base64_encode($password);
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$this->from = $username;
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} else {
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$smtp = Config::get();
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$this->sendServer = $smtp['smtp_server'];
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$this->port = $smtp['smtp_port'];
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$this->isSecurity = $smtp['smtp_ssl'] ? true : false;
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$this->debug = $debug;
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$this->userName = base64_encode($smtp['smtp_username']);
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$this->password = base64_encode($smtp['smtp_password']);
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$this->from = $smtp['smtp_username'];
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}
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return true;
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}
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/**
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* 设置收件人，多个收件人，调用多次或用逗号隔开.
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*
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* @param string $to
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* 收件人地址
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* @return boolean
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*/
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public function setReceiver($to)
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{
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if (strpos($to, ',')) {
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$this->to = explode(',', $to);
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} else {
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$this->to[] = $to;
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}
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return true;
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}
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/**
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* 设置抄送，多个抄送，调用多次或用逗号隔开.
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*
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* @param string $cc
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* 抄送地址
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* @return boolean
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*/
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public function setCc($cc)
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{
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if (strpos($cc, ',')) {
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$this->cc = explode(',', $cc);
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} else {
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$this->cc[] = $cc;
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}
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return true;
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}
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/**
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* 设置秘密抄送，多个秘密抄送，调用多次或用逗号隔开.
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*
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* @param string $bcc
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* 秘密抄送地址
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* @return boolean
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*/
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public function setBcc($bcc)
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{
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if (strpos($bcc, ',')) {
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$this->bcc = explode(',', $bcc);
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} else {
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$this->bcc[] = $bcc;
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}
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return true;
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}
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/**
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* 设置邮件附件，多个附件，调用多次
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*
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* @param string $file
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* 文件地址
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* @return boolean
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*/
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public function addAttachment($file)
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{
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if (! file_exists($file)) {
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$this->errorMessage = "file " . $file . " does not exist.";
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return false;
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}
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$this->attachment[] = $file;
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return true;
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}
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/**
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* 设置邮件信息
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*
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* @param string $body
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* 邮件主题
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* @param string $subject
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* 邮件主体内容，可以是纯文本，也可是是HTML文本
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* @return boolean
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*/
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public function setMail($subject, $body)
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{
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$this->subject = base64_encode($subject);
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$this->body = base64_encode($body);
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return true;
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}
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/**
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* 发送邮件
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*
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* @return boolean
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*/
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public function sendMail($to = '', $subject = '', $body = '')
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{
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if ($to) {
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$this->setReceiver($to);
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$this->setMail($subject, $body);
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}
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$command = $this->getCommand();
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if (! $this->socket($this->isSecurity)) {
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return false;
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}
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foreach ($command as $value) {
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$result = $this->sendCommand($value[0], $value[1]);
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if ($result) {
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continue;
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} else {
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return false;
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}
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}
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// 关闭连接
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$this->close();
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return true;
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}
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/**
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* 返回错误信息
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*
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* @return string
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*/
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public function error()
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{
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if (! isset($this->errorMessage)) {
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$this->errorMessage = "";
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}
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return $this->errorMessage;
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}
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/**
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* 返回mail命令
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*
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* @access protected
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* @return array
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*/
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protected function getCommand()
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{
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$separator = "----=_Part_" . md5($this->from . time()) . uniqid(); // 分隔符
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$command = array(
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array(
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"HELO sendmail\r\n",
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250
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)
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);
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if (! empty($this->userName)) {
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$command[] = array(
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"AUTH LOGIN\r\n",
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334
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);
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$command[] = array(
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$this->userName . "\r\n",
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334
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);
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$command[] = array(
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$this->password . "\r\n",
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235
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);
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}
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// 设置发件人
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$command[] = array(
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"MAIL FROM: <" . $this->from . ">\r\n",
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250
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);
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$header = "FROM: <" . $this->from . ">\r\n";
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// 设置收件人
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if (! empty($this->to)) {
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$count = count($this->to);
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if ($count == 1) {
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$command[] = array(
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"RCPT TO: <" . $this->to[0] . ">\r\n",
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250
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);
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$header .= "TO: <" . $this->to[0] . ">\r\n";
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} else {
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for ($i = 0; $i < $count; $i ++) {
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$command[] = array(
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"RCPT TO: <" . $this->to[$i] . ">\r\n",
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250
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);
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if ($i == 0) {
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$header .= "TO: <" . $this->to[$i] . ">";
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} elseif ($i + 1 == $count) {
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$header .= ",<" . $this->to[$i] . ">\r\n";
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} else {
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$header .= ",<" . $this->to[$i] . ">";
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}
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}
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}
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}
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// 设置抄送
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if (! empty($this->cc)) {
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$count = count($this->cc);
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if ($count == 1) {
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$command[] = array(
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"RCPT TO: <" . $this->cc[0] . ">\r\n",
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250
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);
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$header .= "CC: <" . $this->cc[0] . ">\r\n";
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} else {
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for ($i = 0; $i < $count; $i ++) {
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$command[] = array(
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"RCPT TO: <" . $this->cc[$i] . ">\r\n",
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250
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);
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if ($i == 0) {
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$header .= "CC: <" . $this->cc[$i] . ">";
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} elseif ($i + 1 == $count) {
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$header .= ",<" . $this->cc[$i] . ">\r\n";
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} else {
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$header .= ",<" . $this->cc[$i] . ">";
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}
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}
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}
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}
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// 设置秘密抄送
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if (! empty($this->bcc)) {
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$count = count($this->bcc);
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if ($count == 1) {
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$command[] = array(
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"RCPT TO: <" . $this->bcc[0] . ">\r\n",
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250
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);
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$header .= "BCC: <" . $this->bcc[0] . ">\r\n";
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} else {
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for ($i = 0; $i < $count; $i ++) {
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$command[] = array(
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"RCPT TO: <" . $this->bcc[$i] . ">\r\n",
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250
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);
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if ($i == 0) {
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$header .= "BCC: <" . $this->bcc[$i] . ">";
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} elseif ($i + 1 == $count) {
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$header .= ",<" . $this->bcc[$i] . ">\r\n";
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} else {
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$header .= ",<" . $this->bcc[$i] . ">";
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}
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}
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}
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}
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// 主题
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$header .= "Subject: =?UTF-8?B?" . $this->subject . "?=\r\n";
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if (isset($this->attachment)) {
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// 含有附件的邮件头需要声明成这个
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$header .= "Content-Type: multipart/mixed;\r\n";
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} elseif (false) {
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// 邮件体含有图片资源的,且包含的图片在邮件内部时声明成这个，如果是引用的远程图片，就不需要了
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$header .= "Content-Type: multipart/related;\r\n";
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} else {
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// html或者纯文本的邮件声明成这个
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$header .= "Content-Type: multipart/alternative;\r\n";
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}
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// 邮件头分隔符
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$header .= "\t" . 'boundary="' . $separator . '"';
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$header .= "\r\nMIME-Version: 1.0\r\n";
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// 这里开始是邮件的body部分，body部分分成几段发送
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$header .= "\r\n--" . $separator . "\r\n";
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$header .= "Content-Type:text/html; charset=utf-8\r\n";
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$header .= "Content-Transfer-Encoding: base64\r\n\r\n";
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$header .= $this->body . "\r\n";
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$header .= "--" . $separator . "\r\n";
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// 加入附件
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if (! empty($this->attachment)) {
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$count = count($this->attachment);
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for ($i = 0; $i < $count; $i ++) {
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$header .= "\r\n--" . $separator . "\r\n";
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$header .= "Content-Type: " . $this->getMIMEType($this->attachment[$i]) . '; name="=?UTF-8?B?' . base64_encode(basename($this->attachment[$i])) . '?="' . "\r\n";
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$header .= "Content-Transfer-Encoding: base64\r\n";
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$header .= 'Content-Disposition: attachment; filename="=?UTF-8?B?' . base64_encode(basename($this->attachment[$i])) . '?="' . "\r\n";
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$header .= "\r\n";
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$header .= $this->readFile($this->attachment[$i]);
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$header .= "\r\n--" . $separator . "\r\n";
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}
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}
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// 结束邮件数据发送
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$header .= "\r\n.\r\n";
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$command[] = array(
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"DATA\r\n",
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354
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);
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$command[] = array(
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$header,
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250
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);
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$command[] = array(
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"QUIT\r\n",
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221
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);
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return $command;
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}
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/**
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* 发送命令
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*
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* @param string $command
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* 发送到服务器的smtp命令
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* @param int $code
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* 期望服务器返回的响应吗
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* @return boolean
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*/
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protected function sendCommand($command, $code)
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{
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if ($this->debug) {
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echo 'Send command:' . $command . ',expected code:' . $code . '<br />';
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}
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try {
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if (fwrite($this->socket, $command)) {
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// 当邮件内容分多次发送时，没有$code，服务器没有返回
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if (empty($code)) {
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return true;
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}
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// 读取服务器返回
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$data = trim(fread($this->socket, 1024));
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if (! mb_check_encoding($data, 'utf-8')) {
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$data = iconv('gbk', 'utf-8', $data);
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}
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if ($this->debug) {
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echo 'response:' . $data . '<br /><br />';
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}
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if ($data) {
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$pattern = "/^" . $code . "+?/";
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if (preg_match($pattern, $data)) {
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return true;
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} else {
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$this->errorMessage = $data;
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return false;
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}
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} else {
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return false;
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}
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} else {
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$this->errorMessage = "Error: " . $command . " send failed";
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return false;
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}
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} catch (\Exception $e) {
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$this->errorMessage = "Error:" . $e->getMessage();
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}
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}
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/**
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* 读取附件文件内容，返回base64编码后的文件内容
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*
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* @param string $file
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* 文件
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* @return mixed
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*/
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protected function readFile($file)
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{
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if (file_exists($file)) {
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$file_obj = file_get_contents($file);
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return base64_encode($file_obj);
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} else {
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$this->errorMessage = "file " . $file . " dose not exist";
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return false;
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}
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}
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/**
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* 获取附件MIME类型
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*
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* @param string $file
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* 文件
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* @return mixed
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*/
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protected function getMIMEType($file)
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{
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if (file_exists($file)) {
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$mime = mime_content_type($file);
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return $mime;
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} else {
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return false;
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}
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}
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/**
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* 建立到服务器的网络连接
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*
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* @return boolean
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*/
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protected function socket($ssl = true)
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{
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if ($ssl && ! extension_loaded('openssl')) {
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$this->errorMessage = '服务器未启用openssl扩展，无法使用加密方式发送邮件！';
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return false;
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}
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if (function_exists('stream_socket_client')) {
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if (! function_exists('stream_socket_enable_crypto')) {
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$this->errorMessage = '服务器已经禁用stream_socket_enable_crypto函数，无法发送邮件！';
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return false;
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}
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if (! function_exists('stream_set_blocking')) {
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$this->errorMessage = '服务器已经禁用stream_set_blocking函数，无法发送邮件！';
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return false;
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}
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// 建立连接
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$remoteAddr = "tcp://" . $this->sendServer . ":" . $this->port;
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$this->socket = stream_socket_client($remoteAddr, $errno, $errstr, 30);
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if (! $this->socket) {
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$this->errorMessage = $errstr;
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return false;
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}
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// 设置加密方式
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$crypto_method = STREAM_CRYPTO_METHOD_TLS_CLIENT;
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if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) {
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$crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT;
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$crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT;
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}
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stream_socket_enable_crypto($this->socket, $ssl, $crypto_method);
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} elseif (function_exists('fsockopen')) {
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if ($ssl) {
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$remoteAddr = "ssl://" . $this->sendServer;
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} else {
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$remoteAddr = "tcp://" . $this->sendServer;
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}
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$this->socket = fsockopen($remoteAddr, $this->port, $errno, $errstr, 30);
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if (! $this->socket) {
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$this->errorMessage = $errstr;
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return false;
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}
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} else {
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$this->errorMessage = '服务器已经禁用stream_socket_client和fsockopen函数，请至少开启一个才能发送邮件！';
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return false;
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}
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stream_set_blocking($this->socket, 1); // 设置阻塞模式
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$str = fread($this->socket, 1024);
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if (! preg_match("/220+?/", $str)) {
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$this->errorMessage = $str;
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 关闭安全socket
|
||
*
|
||
* @return boolean
|
||
*/
|
||
protected function close()
|
||
{
|
||
if (isset($this->socket) && is_object($this->socket)) {
|
||
stream_socket_shutdown($this->socket, STREAM_SHUT_WR);
|
||
return true;
|
||
}
|
||
$this->errorMessage = "No resource can to be close";
|
||
return false;
|
||
}
|
||
} |