php sockets发送邮件类

shenmadouyao 
/**
* 邮件发送类
* 支持发送纯文本邮件和HTML格式的邮件，可以多收件人，多抄送，多秘密抄送，带附件(单个或多个附件),支持到服务器的ssl连接
* 需要的php扩展：sockets、Fileinfo和openssl。
* 编码格式是UTF-8，传输编码格式是base64
* @example
* $mail = new MySendMail();
* $mail->setServer("smtp@126.com", "XXXXX@126.com", "XXXXX"); //设置smtp服务器，普通连接方式
* $mail->setServer("smtp.gmail.com", "XXXXX@gmail.com", "XXXXX", 465, true); //设置smtp服务器，到服务器的SSL连接
* $mail->setFrom("XXXXX"); //设置发件人
* $mail->setFromname("XXXXX"); //设置发件人名
* $mail->setReceiver("XXXXX"); //设置收件人，多个收件人，调用多次
* $mail->setCc("XXXX"); //设置抄送，多个抄送，调用多次
* $mail->setBcc("XXXXX"); //设置秘密抄送，多个秘密抄送，调用多次
* $mail->addAttachment( array("XXXX","xxxxx") ); //添加附件，多个附件，可调用多次，第一个文件名是 程序要去抓的文件名，第二个文件名是显示在邮件中的文件名。
* $mail->setMail("test", "test"); //设置邮件主题、内容
* $mail->sendMail(); //发送
*/


class MySendMail {
/**
* @var string 邮件传输代理用户名
* @access protected
*/
protected $_userName;

/**
* @var string 邮件传输代理密码
* @access protected
*/
protected $_password;

/**
* @var string 邮件传输代理服务器地址
* @access protected
*/
protected $_sendServer;

/**
* @var int 邮件传输代理服务器端口
* @access protected
*/
protected $_port;

/**
* @var string 发件人
* @access protected
*/
protected $_from;

/**
* @var string 发件人名称
* @access protected
*/
protected $_fromname;
/**
* @var array 收件人
* @access protected
*/
protected $_to = array();

/**
* @var array 抄送
* @access protected
*/
protected $_cc = array();

/**
* @var array 秘密抄送
* @access protected
*/
protected $_bcc = array();

/**
* @var string 主题
* @access protected
*/
protected $_subject;

/**
* @var string 邮件正文
* @access protected
*/
protected $_body;

/**
* @var array 附件
* @access protected
*/
protected $_attachment = array();

/**
* @var reource socket资源
* @access protected
*/
protected $_socket;

/**
* @var reource 是否是安全连接
* @access protected
*/
protected $_isSecurity;

/**
* @var string 错误信息
* @access protected
*/
protected $_errorMessage;

/**
* 设置邮件传输代理，如果是可以匿名发送有邮件的服务器，只需传递代理服务器地址就行
* @access public
* @param string $server 代理服务器的ip或者域名
* @param string $username 认证账号
* @param string $password 认证密码
* @param int $port 代理服务器的端口，smtp默认25号端口
* @param boolean $isSecurity 到服务器的连接是否为安全连接，默认false
* @return boolean
*/
public function setServer($server, $username="", $password="", $port=25, $isSecurity=false) {
$this->_sendServer = $server;
$this->_port = $port;
$this->_isSecurity = $isSecurity;
$this->_userName = empty($username) ? "" : base64_encode($username);
$this->_password = empty($password) ? "" : base64_encode($password);
return true;
}

/**
* 设置发件人
* @access public
* @param string $from 发件人地址
* @return boolean
*/
public function setFrom($from) {
$this->_from = $from;
return true;
}

/**
* 设置发件人名称
* @access public
* @param string $from 发件人名称
* @return boolean
*/
public function setFromname($name) {
$this->_fromname = $name;
return true;
}

/**
* 设置收件人，多个收件人，调用多次.
* @access public
* @param string $to 收件人地址
* @return boolean
*/
public function setReceiver($to) {
$this->_to[] = $to;
return true;
}

/**
* 设置抄送，多个抄送，调用多次.
* @access public
* @param string $cc 抄送地址
* @return boolean
*/
public function setCc($cc) {
$this->_cc[] = $cc;
return true;
}

/**
* 设置秘密抄送，多个秘密抄送，调用多次
* @access public
* @param string $bcc 秘密抄送地址
* @return boolean
*/
public function setBcc($bcc) {
$this->_bcc[] = $bcc;
return true;
}

/**
* 设置邮件附件，多个附件，调用多次
* @access public
* @param string $file 文件地址
* @return boolean
*/
public function addAttachment( array $file_array) {
//print_r($file_array);
if(!file_exists($file_array[0])) {
$this->_errorMessage = "file " . $file_array[0] . " does not exist.";
return false;
}
$this->_attachment[] = $file_array;
//print_r($this->_attachment);

return true;
}

/**
* 设置邮件信息
* @access public
* @param string $body 邮件主题
* @param string $subject 邮件主体内容，可以是纯文本，也可是是HTML文本
* @return boolean
*/
public function setMail($subject, $body) {
$this->_subject = base64_encode($subject);
$this->_body = base64_encode($body);
return true;
}

/**
* 发送邮件
* @access public
* @return boolean
*/
public function sendMail() {
$command = $this->getCommand();
//print_r($command);
$this->_isSecurity ? $this->socketSecurity() : $this->socket();

foreach ($command as $value) {
$result = $this->_isSecurity ? $this->sendCommandSecurity($value[0], $value[1]) : $this->sendCommand($value[0], $value[1]);
if($result) {
continue;
}
else{
return false;
}
}

//其实这里也没必要关闭，smtp命令：QUIT发出之后，服务器就关闭了连接，本地的socket资源会自动释放
$this->_isSecurity ? $this->closeSecutity() : $this->close();
return true;
}

/**
* 返回错误信息
* @return string
*/
public function error(){
if(!isset($this->_errorMessage)) {
$this->_errorMessage = "";
}
return $this->_errorMessage;
}

/**
* 返回mail命令
* @access protected
* @return array
*/
protected function getCommand() {
$separator = "----=_Part_" . md5($this->_from . time()) . uniqid(); //分隔符

$command = array(
array("HELO sendmail\r\n", 250)
);
if(!empty($this->_userName)){
$command[] = array("AUTH LOGIN\r\n", 334);
$command[] = array($this->_userName . "\r\n", 334);
$command[] = array($this->_password . "\r\n", 235);
}

//设置发件人
$command[] = array("MAIL FROM: <" . $this->_from . ">\r\n", 250);
$header = "FROM: ".$this->_fromname."<" . $this->_from . ">\r\n";

//设置收件人
if(!empty($this->_to)) {
$count = count($this->_to);
if($count == 1){
$command[] = array("RCPT TO: <" . $this->_to[0] . ">\r\n", 250);
$header .= "TO: <" . $this->_to[0] .">\r\n";
}
else{
for($i=0; $i<$count; $i++){
$command[] = array("RCPT TO: <" . $this->_to[$i] . ">\r\n", 250);
if($i == 0){
$header .= "TO: <" . $this->_to[$i] .">";
}
elseif($i + 1 == $count){
$header .= ",<" . $this->_to[$i] .">\r\n";
}
else{
$header .= ",<" . $this->_to[$i] .">";
}
}
}
}

//设置抄送
if(!empty($this->_cc)) {
$count = count($this->_cc);
if($count == 1){
$command[] = array("RCPT TO: <" . $this->_cc[0] . ">\r\n", 250);
$header .= "CC: <" . $this->_cc[0] .">\r\n";
}
else{
for($i=0; $i<$count; $i++){
$command[] = array("RCPT TO: <" . $this->_cc[$i] . ">\r\n", 250);
if($i == 0){
$header .= "CC: <" . $this->_cc[$i] .">";
}
elseif($i + 1 == $count){
$header .= ",<" . $this->_cc[$i] .">\r\n";
}
else{
$header .= ",<" . $this->_cc[$i] .">";
}
}
}
}

//设置秘密抄送
if(!empty($this->_bcc)) {
$count = count($this->_bcc);
if($count == 1) {
$command[] = array("RCPT TO: <" . $this->_bcc[0] . ">\r\n", 250);
$header .= "BCC: <" . $this->_bcc[0] .">\r\n";
}
else{
for($i=0; $i<$count; $i++){
$command[] = array("RCPT TO: <" . $this->_bcc[$i] . ">\r\n", 250);
if($i == 0){
$header .= "BCC: <" . $this->_bcc[$i] .">";
}
elseif($i + 1 == $count){
$header .= ",<" . $this->_bcc[$i] .">\r\n";
}
else{
$header .= ",<" . $this->_bcc[$i] .">";
}
}
}
}

//主题
$header .= "Subject: =?UTF-8?B?" . $this->_subject ."?=\r\n";
if(isset($this->_attachment)) {
//含有附件的邮件头需要声明成这个
$header .= "Content-Type: multipart/mixed;\r\n";
}
elseif(false){
//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
$header .= "Content-Type: multipart/related;\r\n";
}
else{
//html或者纯文本的邮件声明成这个
$header .= "Content-Type: multipart/alternative;\r\n";
}

//邮件头分隔符
$header .= "\t" . 'boundary="' . $separator . '"';

$header .= "\r\nMIME-Version: 1.0\r\n";

//这里开始是邮件的body部分，body部分分成几段发送
$header .= "\r\n--" . $separator . "\r\n";
$header .= "Content-Type:text/html; charset=utf-8\r\n";
$header .= "Content-Transfer-Encoding: base64\r\n\r\n";
$header .= $this->_body . "\r\n";
$header .= "--" . $separator . "\r\n";

//加入附件
if(!empty($this->_attachment)){
$count = count($this->_attachment);
for($i=0; $i<$count; $i++){ $header .= "\r\n--" . $separator . "\r\n"; $header .= "Content-Type: " . $this->getMIMEType($this->_attachment[$i][0]) . '; name="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i][1]) ) . '?="' . "\r\n";
//echo $header;
$header .= "Content-Transfer-Encoding: base64\r\n";
$header .= 'Content-Disposition: attachment; filename="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i][1]) ) . '?="' . "\r\n";
$header .= "\r\n";
$header .= $this->readFile($this->_attachment[$i][0]);
$header .= "\r\n--" . $separator . "\r\n";
}
//echo $header;
}

//结束邮件数据发送
$header .= "\r\n.\r\n";

$command[] = array("DATA\r\n", 354);
$command[] = array($header, 250);
$command[] = array("QUIT\r\n", 221);

return $command;
}

/**
* 发送命令
* @access protected
* @param string $command 发送到服务器的smtp命令
* @param int $code 期望服务器返回的响应吗
* @return boolean
*/
protected function sendCommand($command, $code) {
//echo 'Send command:' . $command . ',expected code:' . $code . '';
//发送命令给服务器
try{
if(socket_write($this->_socket, $command, strlen($command))){

//当邮件内容分多次发送时，没有$code，服务器没有返回
if(empty($code)) {
return true;
}

//读取服务器返回
$data = trim(socket_read($this->_socket, 1024));
//echo 'response:' . $data . '';

if($data) {
$pattern = "/^".$code."+?/";
if(preg_match($pattern, $data)) {
return true;
}
else{
$this->_errorMessage = "Error:" . $data . "|**| command:";
return false;
}
}
else{
$this->_errorMessage = "Error:" . socket_strerror(socket_last_error());
return false;
}
}
else{
$this->_errorMessage = "Error:" . socket_strerror(socket_last_error());
return false;
}
}catch(Exception $e) {
$this->_errorMessage = "Error:" . $e->getMessage();
}
}

/**
* 安全连接发送命令
* @access protected
* @param string $command 发送到服务器的smtp命令
* @param int $code 期望服务器返回的响应吗
* @return boolean
*/
protected function sendCommandSecurity($command, $code) {
//echo 'Send command:' . $command . ',expected code:' . $code . '';
try {
if(fwrite($this->_socket, $command)){
//当邮件内容分多次发送时，没有$code，服务器没有返回
if(empty($code)) {
return true;
}
//读取服务器返回
$data = trim(fread($this->_socket, 1024));
//echo 'response:' . $data . '';

if($data) {
$pattern = "/^".$code."+?/";
if(preg_match($pattern, $data)) {
return true;
}
else{
$this->_errorMessage = "Error:" . $data . "|**| command:";
return false;
}
}
else{
return false;
}
}
else{
$this->_errorMessage = "Error: " . $command . " send failed";
return false;
}
}catch(Exception $e) {
$this->_errorMessage = "Error:" . $e->getMessage();
}
}

/**
* 读取附件文件内容，返回base64编码后的文件内容
* @access protected
* @param string $file 文件
* @return mixed
*/
protected function readFile($file) {
if(file_exists($file)) {
$file_obj = file_get_contents($file);
return base64_encode($file_obj);
}
else {
$this->_errorMessage = "file " . $file . " dose not exist";
return false;
}
}

/**
* 获取附件MIME类型
* @access protected
* @param string $file 文件
* @return mixed
*/
protected function getMIMEType($file) {

if(!function_exists('mime_content_type')) {

function mime_content_type($filename) {

$mime_types = array(

'txt' => 'text/plain',
'htm' => 'text/html',
'html' => 'text/html',
'php' => 'text/html',
'css' => 'text/css',
'js' => 'application/javascript',
'json' => 'application/json',
'xml' => 'application/xml',
'swf' => 'application/x-shockwave-flash',
'flv' => 'video/x-flv',

// images
'png' => 'image/png',
'jpe' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'jpg' => 'image/jpeg',
'gif' => 'image/gif',
'bmp' => 'image/bmp',
'ico' => 'image/vnd.microsoft.icon',
'tiff' => 'image/tiff',
'tif' => 'image/tiff',
'svg' => 'image/svg+xml',
'svgz' => 'image/svg+xml',

// archives
'zip' => 'application/zip',
'rar' => 'application/x-rar-compressed',
'exe' => 'application/x-msdownload',
'msi' => 'application/x-msdownload',
'cab' => 'application/vnd.ms-cab-compressed',

// audio/video
'mp3' => 'audio/mpeg',
'qt' => 'video/quicktime',
'mov' => 'video/quicktime',

// adobe
'pdf' => 'application/pdf',
'psd' => 'image/vnd.adobe.photoshop',
'ai' => 'application/postscript',
'eps' => 'application/postscript',
'ps' => 'application/postscript',

// ms office
'doc' => 'application/msword',
'rtf' => 'application/rtf',
'xls' => 'application/vnd.ms-excel',
'ppt' => 'application/vnd.ms-powerpoint',

// open office
'odt' => 'application/vnd.oasis.opendocument.text',
'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
);

$ext = strtolower(array_pop(explode('.',$filename)));
if (array_key_exists($ext, $mime_types)) {
return $mime_types[$ext];
}
elseif (function_exists('finfo_open')) {
$finfo = finfo_open(FILEINFO_MIME);
$mimetype = finfo_file($finfo, $filename);
finfo_close($finfo);
return $mimetype;
}
else {
return 'application/octet-stream';
}
}
}

if(file_exists($file)) {
$mime = mime_content_type($file);

if(! preg_match("/gif|jpg|png|jpeg/", $mime) || $mime==""){
$mime = "application/octet-stream";
}
//echo $mime;
return $mime;
}
else {
return false;
}
}

/**
* 建立到服务器的网络连接
* @access protected
* @return boolean
*/
protected function socket() {
//创建socket资源
$this->_socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp'));

if(!$this->_socket) {
$this->_errorMessage = socket_strerror(socket_last_error());
return false;
}

socket_set_block($this->_socket);//设置阻塞模式

//连接服务器
if(!socket_connect($this->_socket, $this->_sendServer, $this->_port)) {
$this->_errorMessage = socket_strerror(socket_last_error());
return false;
}
$str = socket_read($this->_socket, 1024);
if(!preg_match("/220+?/", $str)){
$this->_errorMessage = $str;
return false;
}

return true;
}

/**
* 建立到服务器的SSL网络连接
* @access protected
* @return boolean
*/
protected function socketSecurity() {
$remoteAddr = "tcp://" . $this->_sendServer . ":" . $this->_port;
$this->_socket = stream_socket_client($remoteAddr, $errno, $errstr, 30);
if(!$this->_socket){
$this->_errorMessage = $errstr;
return false;
}

//设置加密连接，默认是ssl，如果需要tls连接，可以查看php手册stream_socket_enable_crypto函数的解释
stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT);

stream_set_blocking($this->_socket, 1); //设置阻塞模式
$str = fread($this->_socket, 1024);
if(!preg_match("/220+?/", $str)){
$this->_errorMessage = $str;
return false;
}

return true;
}

/**
* 关闭socket
* @access protected
* @return boolean
*/
protected function close() {
if(isset($this->_socket) && is_object($this->_socket)) {
$this->_socket->close();
return true;
}
$this->_errorMessage = "No resource can to be close";
return false;
}

/**
* 关闭安全socket
* @access protected
* @return boolean
*/
protected function closeSecutity() {
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;
}
}

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