phpmailer中的部分代码说明
验证邮件的格式
/**
* 验证邮件地址
* Conforms approximately to RFC2822
* @link http://www.hexillion.com/samples/#Regex Original pattern found here
* @param string $address The email address to check
* @return boolean
* @static
* @access public
*/
public static function ValidateAddress($address) {
//存在filter_var方法使用filter_var方法直接验证,否则正则表达式验证
if (function_exists('filter_var')) { //Introduced in PHP 5.2
if(filter_var($address, FILTER_VALIDATE_EMAIL) === FALSE) {
return false;
} else {
return true;
}
} else {
return preg_match('/^(?:[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+\.)*[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+@(?:(?:(?:[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!\.)){0,61}[a-zA-Z0-9_-]?\.)+[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!$)){0,61}[a-zA-Z0-9_]?)|(?:\[(?:(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\]))$/', $address);
}
}
设置者发送者邮件发送名称
/**
* 设置发送者的邮件和发送者名称
* @param string $address 发送者邮件
* @param string $name 发送者名称
* @param string $auto 是否为自动回复
* @return boolean
*/
public function SetFrom($address, $name = '',$auto=1) {
$address = trim($address);
$name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
//验证发送者的邮件地址
if (!self::ValidateAddress($address)) {
$this->SetError($this->Lang('invalid_address').': '. $address);
if ($this->exceptions) {
throw new phpmailerException($this->Lang('invalid_address').': '.$address);
}
echo $this->Lang('invalid_address').': '.$address;
return false;
}
//设置发送和发送者的用户名称
$this->From = $address;
$this->FromName = $name;
//设置自动回复,将回复人设置为发送人
if ($auto) {
if (empty($this->ReplyTo)) {
$this->AddAnAddress('ReplyTo', $address, $name);
}
if (empty($this->Sender)) {
$this->Sender = $address;
}
}
return true;
}
发送邮件
/**
* Creates message and assigns Mailer. If the message is
* not sent successfully then it returns false. Use the ErrorInfo
* variable to view description of the error.
* @return bool
*/
public function Send() {
try {
//接受人,抄送人,密送人之和小于1抛出异常
if ((count($this->to) + count($this->cc) + count($this->bcc)) < 1) {
throw new phpmailerException($this->Lang('provide_address'), self::STOP_CRITICAL);
}
// Set whether the message is multipart/alternative
if(!empty($this->AltBody)) {
$this->ContentType = 'multipart/alternative';
}
//将错误信息清空
$this->error_count = 0; // reset errors
//设置消息类型
$this->SetMessageType();
//创建头
$header = $this->CreateHeader();
//创建实体
$body = $this->CreateBody();
//实体为空抛出异常
if (empty($this->Body)) {
throw new phpmailerException($this->Lang('empty_message'), self::STOP_CRITICAL);
}
// digitally sign with DKIM if enabled
if ($this->DKIM_domain && $this->DKIM_private) {
$header_dkim = $this->DKIM_Add($header,$this->Subject,$body);
$header = str_replace("\r\n","\n",$header_dkim) . $header;
}
// 选择邮件发方式
switch($this->Mailer) {
case 'sendmail':
return $this->SendmailSend($header, $body);
//采用smtp格式发送邮件
case 'smtp':
return $this->SmtpSend($header, $body);
default:
return $this->MailSend($header, $body);
}
} catch (phpmailerException $e) {
$this->SetError($e->getMessage());
if ($this->exceptions) {
throw $e;
}
echo $e->getMessage()."\n";
return false;
}
}
创建邮件头
/**
* 组装信件的头
* @access public
* @return string The assembled header
*/
public function CreateHeader() {
$result = '';
// Set the boundaries
$uniq_id = md5(uniqid(time()));
$this->boundary[1] = 'b1_' . $uniq_id;
$this->boundary[2] = 'b2_' . $uniq_id;
//创建邮件的发送日期
$result .= $this->HeaderLine('Date', self::RFCDate());
//创建邮件的回复地址
if($this->Sender == '') {
$result .= $this->HeaderLine('Return-Path', trim($this->From));
} else {
$result .= $this->HeaderLine('Return-Path', trim($this->Sender));
}
// To be created automatically by mail()
if($this->Mailer != 'mail') {
if ($this->SingleTo === true) {
foreach($this->to as $t) {
$this->SingleToArray[] = $this->AddrFormat($t);
}
} else {
if(count($this->to) > 0) {
$result .= $this->AddrAppend('To', $this->to);
} elseif (count($this->cc) == 0) {
$result .= $this->HeaderLine('To', 'undisclosed-recipients:;');
}
}
}
//追加发件人的信息
$from = array();
$from[0][0] = trim($this->From);
$from[0][1] = $this->FromName;
$result .= $this->AddrAppend('From', $from);
// sendmail and mail() extract Cc from the header before sending
//追加抄送者信息
if(count($this->cc) > 0) {
$result .= $this->AddrAppend('Cc', $this->cc);
}
// sendmail and mail() extract Bcc from the header before sending
//追加密送者信息
if((($this->Mailer == 'sendmail') || ($this->Mailer == 'mail')) && (count($this->bcc) > 0)) {
$result .= $this->AddrAppend('Bcc', $this->bcc);
}
//追加回复者的信息
if(count($this->ReplyTo) > 0) {
$result .= $this->AddrAppend('Reply-to', $this->ReplyTo);
}
// mail() sets the subject itself
//不是mail形式时,追加主题
if($this->Mailer != 'mail') {
$result .= $this->HeaderLine('Subject', $this->EncodeHeader($this->SecureHeader($this->Subject)));
}
//追加消息ID
if($this->MessageID != '') {
$result .= $this->HeaderLine('Message-ID',$this->MessageID);
} else {
$result .= sprintf("Message-ID: <%s@%s>%s", $uniq_id, $this->ServerHostname(), $this->LE);
}
//追加自定义的邮件紧急程度
$result .= $this->HeaderLine('X-Priority', $this->Priority);
//追加自定义使用哪个版本的phpmailer发送
//X-Mailer是代理发信的客户端
$result .= $this->HeaderLine('X-Mailer', 'PHPMailer '.$this->Version.' (phpmailer.sourceforge.net)');
if($this->ConfirmReadingTo != '') {
$result .= $this->HeaderLine('Disposition-Notification-To', '<' . trim($this->ConfirmReadingTo) . '>');
}
// Add custom headers
//追加自定义的头信息
for($index = 0; $index < count($this->CustomHeader); $index++) {
$result .= $this->HeaderLine(trim($this->CustomHeader[$index][0]), $this->EncodeHeader(trim($this->CustomHeader[$index][1])));
}
//设置MIME版本号
if (!$this->sign_key_file) {
$result .= $this->HeaderLine('MIME-Version', '1.0');
//设置文件的类型
$result .= $this->GetMailMIME();
}
return $result;
}
/**
* Returns the message MIME.
* @access public
* @return string
*/
public function GetMailMIME() {
$result = '';
switch($this->message_type) {
//邮件类型为plain
case 'plain':
//设置编码格式
$result .= $this->HeaderLine('Content-Transfer-Encoding', $this->Encoding);
//设置MIME文件类型及字符集
$result .= sprintf("Content-Type: %s; charset=\"%s\"", $this->ContentType, $this->CharSet);
break;
//邮件包含附件
case 'attachments':
case 'alt_attachments':
//如果有嵌入式图片,设置MIME文件类型为multipart/related
//不存在嵌入式图片,设置MIME文件类型为multipart/mixed
if($this->InlineImageExists()){
$result .= sprintf("Content-Type: %s;%s\ttype=\"text/html\";%s\tboundary=\"%s\"%s", 'multipart/related', $this->LE, $this->LE, $this->boundary[1], $this->LE);
} else {
$result .= $this->HeaderLine('Content-Type', 'multipart/mixed;');
$result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
}
break;
case 'alt':
$result .= $this->HeaderLine('Content-Type', 'multipart/alternative;');
$result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
break;
}
if($this->Mailer != 'mail') {
//追加两个换行
$result .= $this->LE.$this->LE;
}
return $result;
}
php生成的发送邮件头的格式
Date: Sat, 3 Jul 2010 12:38:51 +0000
Return-Path: *****@126.com
To: John Doe
From: First Last
Reply-to: First Last
Subject: =?gbk?B?suLK1A==?=
Message-ID: <8336f09c2d8910f62a6525c1ed92863c@127.0.0.1>
X-Priority: 3
X-Mailer: PHPMailer 5.1 (phpmailer.sourceforge.net)
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="b1_8336f09c2d8910f62a6525c1ed92863c"
明天再贴其他部分
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