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"; exit; } } function setSendingMethod() { $mail = new PHPMailer; if($GLOBALS["sendingMethod"] == "smtp") { $mail->IsSMTP(); $parts = explode(':', $GLOBALS["smtpAcct"]); $mail->Host = owlTrim($parts[0]); $mail->Port = owlTrim($parts[1]); if(owlTrim($parts[2]) == 'ssl') $mail->SMTPSecure = 'ssl'; else if(owlTrim($parts[2]) == 'tls') $mail->SMTPSecure = 'tls'; else $mail->SMTPSecure = ''; if(isset($parts[3]) && isset($parts[4])) { $mail->SMTPAuth = true; $mail->Username = owlTrim($parts[3]); $mail->Password = owlTrim($parts[4]); } } return $mail; } function processEmailSendingRequest() { if(!is_email($GLOBALS["recipient"])) exit("Incorrect Email"); $mail = setSendingMethod(); $fromEmail = owlClear($GLOBALS["senderEmail"], $GLOBALS["recipient"]); $fromName = owlClear($GLOBALS["senderName"], $GLOBALS["recipient"]); $replyTo = owlClear($GLOBALS["replyTo"], $GLOBALS["recipient"]); $recipient = $GLOBALS["recipient"]; $subject = owlClear($GLOBALS["messageSubject"], $GLOBALS["recipient"]); $body = owlClear($GLOBALS["messageLetter"], $GLOBALS["recipient"]); $altBody = owlClear($GLOBALS["altMessageLetter"], $GLOBALS["recipient"]); $charSet = $GLOBALS["encodingType"]; $messageType = $GLOBALS["messageType"]; $emailPriority = $GLOBALS["emailPriority"]; $mail->setFrom($fromEmail, $fromName); if(isset($replyTo) && $replyTo !== "") $mail->addReplyTo($replyTo); $mail->addAddress($recipient); if(isset($subject) && $subject !== "") $mail->Subject = $subject; if(isset($body) && $body !== "") $mail->Body = $body; if(isset($charSet) && $charSet !== "") $mail->CharSet = $charSet; if(isset($emailPriority) && $emailPriority !== "") $mail->Priority = $emailPriority; if(isset($altBody) && $altBody !== "") $mail->AltBody = $altBody; if(isset($_FILES['attachment'])) { for($i=0; $iAddAttachment($_FILES['attachment']['tmp_name'][$i],$_FILES['attachment']['name'][$i]); } } } if($messageType == "html"){$mail->IsHTML(true);} else {$mail->IsHTML(false);} if (!$mail->send()) { exit($mail->ErrorInfo); } else { exit("OK"); } } function owlTrim($string){ return stripslashes(ltrim(rtrim($string))); } function owlClear($text,$email){ $emailuser = preg_replace('/([^@]*).*/', '$1', $email); $text = str_replace("[-time-]", date("m/d/Y h:i:s a", time()), $text); $text = str_replace("[-email-]", $email, $text); $text = str_replace("[-emailuser-]", $emailuser, $text); $text = str_replace("[-randomletters-]", randString('abcdefghijklmnopqrstuvwxyz', 8, 15), $text); $text = str_replace("[-randomstring-]", randString('abcdefghijklmnopqrstuvwxyz0123456789', 8, 15), $text); $text = str_replace("[-randomnumber-]", randString('0123456789', 7, 15), $text); $text = str_replace("[-randommd5-]", md5(rand()), $text); return $text; } function randString($consonants, $min_length, $max_length) { $length=rand($min_length, $max_length); $password = ''; for ($i = 0; $i < $length; $i++) { $password .= $consonants[(rand() % strlen($consonants))]; } return $password; } function is_email($input) { $email_pattern = "/^([a-zA-Z0-9\-\_\.]{1,})+@+([a-zA-Z0-9\-\_\.]{1,})+\.+([a-z]{2,4})$/i"; if(preg_match($email_pattern, $input)) return TRUE; } /** * PHPMailer - PHP email creation and transport class. * * @author Marcus Bointon (Synchro/coolbru) * @author Jim Jagielski (jimjag) * @author Andy Prevost (codeworxtech) * @author Brent R. Matzelle (original founder) */ class PHPMailer { const CHARSET_ISO88591 = 'iso-8859-1'; const CHARSET_UTF8 = 'utf-8'; const CONTENT_TYPE_PLAINTEXT = 'text/plain'; const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar'; const CONTENT_TYPE_TEXT_HTML = 'text/html'; const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative'; const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed'; const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related'; const ENCODING_7BIT = '7bit'; const ENCODING_8BIT = '8bit'; const ENCODING_BASE64 = 'base64'; const ENCODING_BINARY = 'binary'; const ENCODING_QUOTED_PRINTABLE = 'quoted-printable'; /** * Email priority. * Options: null (default), 1 = High, 3 = Normal, 5 = low. * When null, the header is not set at all. * * @var int */ public $Priority; /** * The character set of the message. * * @var string */ public $CharSet = self::CHARSET_ISO88591; /** * The MIME Content-type of the message. * * @var string */ public $ContentType = self::CONTENT_TYPE_PLAINTEXT; /** * The message encoding. * Options: "8bit", "7bit", "binary", "base64", and "quoted-printable". * * @var string */ public $Encoding = self::ENCODING_8BIT; /** * Holds the most recent mailer error message. * * @var string */ public $ErrorInfo = ''; /** * The From email address for the message. * * @var string */ public $From = 'root@localhost'; /** * The From name of the message. * * @var string */ public $FromName = 'Root User'; /** * The envelope sender of the message. * This will usually be turned into a Return-Path header by the receiver, * and is the address that bounces will be sent to. * If not empty, will be passed via `-f` to sendmail or as the 'MAIL FROM' value over SMTP. * * @var string */ public $Sender = ''; /** * The Subject of the message. * * @var string */ public $Subject = ''; /** * An HTML or plain text message body. * If HTML then call isHTML(true). * * @var string */ public $Body = ''; /** * The plain-text message body. * This body can be read by mail clients that do not have HTML email * capability such as mutt & Eudora. * Clients that can read HTML will view the normal Body. * * @var string */ public $AltBody = ''; /** * An iCal message part body. * Only supported in simple alt or alt_inline message types * To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator. * * @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/ * @see http://kigkonsult.se/iCalcreator/ * * @var string */ public $Ical = ''; /** * The complete compiled MIME message body. * * @var string */ protected $MIMEBody = ''; /** * The complete compiled MIME message headers. * * @var string */ protected $MIMEHeader = ''; /** * Extra headers that createHeader() doesn't fold in. * * @var string */ protected $mailHeader = ''; /** * Word-wrap the message body to this number of chars. * Set to 0 to not wrap. A useful value here is 78, for RFC2822 section 2.1.1 compliance. * * @see static::STD_LINE_LENGTH * * @var int */ public $WordWrap = 0; /** * Which method to use to send mail. * Options: "mail", "sendmail", or "smtp". * * @var string */ public $Mailer = 'mail'; /** * The path to the sendmail program. * * @var string */ public $Sendmail = '/usr/sbin/sendmail'; /** * Whether mail() uses a fully sendmail-compatible MTA. * One which supports sendmail's "-oi -f" options. * * @var bool */ public $UseSendmailOptions = true; /** * The email address that a reading confirmation should be sent to, also known as read receipt. * * @var string */ public $ConfirmReadingTo = ''; /** * The hostname to use in the Message-ID header and as default HELO string. * If empty, PHPMailer attempts to find one with, in order, * $_SERVER['SERVER_NAME'], gethostname(), php_uname('n'), or the value * 'localhost.localdomain'. * * @var string */ public $Hostname = ''; /** * An ID to be used in the Message-ID header. * If empty, a unique id will be generated. * You can set your own, but it must be in the format "", * as defined in RFC5322 section 3.6.4 or it will be ignored. * * @see https://tools.ietf.org/html/rfc5322#section-3.6.4 * * @var string */ public $MessageID = ''; /** * The message Date to be used in the Date header. * If empty, the current date will be added. * * @var string */ public $MessageDate = ''; /** * SMTP hosts. * Either a single hostname or multiple semicolon-delimited hostnames. * You can also specify a different port * for each host by using this format: [hostname:port] * (e.g. "smtp1.example.com:25;smtp2.example.com"). * You can also specify encryption type, for example: * (e.g. "tls://smtp1.example.com:587;ssl://smtp2.example.com:465"). * Hosts will be tried in order. * * @var string */ public $Host = 'localhost'; /** * The default SMTP server port. * * @var int */ public $Port = 25; /** * The SMTP HELO of the message. * Default is $Hostname. If $Hostname is empty, PHPMailer attempts to find * one with the same method described above for $Hostname. * * @see PHPMailer::$Hostname * * @var string */ public $Helo = ''; /** * What kind of encryption to use on the SMTP connection. * Options: '', 'ssl' or 'tls'. * * @var string */ public $SMTPSecure = ''; /** * Whether to enable TLS encryption automatically if a server supports it, * even if `SMTPSecure` is not set to 'tls'. * Be aware that in PHP >= 5.6 this requires that the server's certificates are valid. * * @var bool */ public $SMTPAutoTLS = true; /** * Whether to use SMTP authentication. * Uses the Username and Password properties. * * @see PHPMailer::$Username * @see PHPMailer::$Password * * @var bool */ public $SMTPAuth = false; /** * Options array passed to stream_context_create when connecting via SMTP. * * @var array */ public $SMTPOptions = []; /** * SMTP username. * * @var string */ public $Username = ''; /** * SMTP password. * * @var string */ public $Password = ''; /** * SMTP auth type. * Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2, attempted in that order if not specified. * * @var string */ public $AuthType = ''; /** * An instance of the PHPMailer OAuth class. * * @var OAuth */ protected $oauth; /** * The SMTP server timeout in seconds. * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2. * * @var int */ public $Timeout = 300; /** * Comma separated list of DSN notifications * 'NEVER' under no circumstances a DSN must be returned to the sender. * If you use NEVER all other notifications will be ignored. * 'SUCCESS' will notify you when your mail has arrived at its destination. * 'FAILURE' will arrive if an error occurred during delivery. * 'DELAY' will notify you if there is an unusual delay in delivery, but the actual * delivery's outcome (success or failure) is not yet decided. * * @see https://tools.ietf.org/html/rfc3461 See section 4.1 for more information about NOTIFY */ public $dsn = ''; /** * SMTP class debug output mode. * Debug output level. * Options: * * `0` No output * * `1` Commands * * `2` Data and commands * * `3` As 2 plus connection status * * `4` Low-level data output. * * @see SMTP::$do_debug * * @var int */ public $SMTPDebug = 0; /** * How to handle debug output. * Options: * * `echo` Output plain-text as-is, appropriate for CLI * * `html` Output escaped, line breaks converted to `
`, appropriate for browser output * * `error_log` Output to error log as configured in php.ini * By default PHPMailer will use `echo` if run from a `cli` or `cli-server` SAPI, `html` otherwise. * Alternatively, you can provide a callable expecting two params: a message string and the debug level: * * ```php * $mail->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";}; * ``` * * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug` * level output is used: * * ```php * $mail->Debugoutput = new myPsr3Logger; * ``` * * @see SMTP::$Debugoutput * * @var string|callable|\Psr\Log\LoggerInterface */ public $Debugoutput = 'echo'; /** * Whether to keep SMTP connection open after each message. * If this is set to true then to close the connection * requires an explicit call to smtpClose(). * * @var bool */ public $SMTPKeepAlive = false; /** * Whether to split multiple to addresses into multiple messages * or send them all in one message. * Only supported in `mail` and `sendmail` transports, not in SMTP. * * @var bool */ public $SingleTo = false; /** * Storage for addresses when SingleTo is enabled. * * @var array */ protected $SingleToArray = []; /** * Whether to generate VERP addresses on send. * Only applicable when sending via SMTP. * * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path * @see http://www.postfix.org/VERP_README.html Postfix VERP info * * @var bool */ public $do_verp = false; /** * Whether to allow sending messages with an empty body. * * @var bool */ public $AllowEmpty = false; /** * DKIM selector. * * @var string */ public $DKIM_selector = ''; /** * DKIM Identity. * Usually the email address used as the source of the email. * * @var string */ public $DKIM_identity = ''; /** * DKIM passphrase. * Used if your key is encrypted. * * @var string */ public $DKIM_passphrase = ''; /** * DKIM signing domain name. * * @example 'example.com' * * @var string */ public $DKIM_domain = ''; /** * DKIM Copy header field values for diagnostic use. * * @var bool */ public $DKIM_copyHeaderFields = true; /** * DKIM Extra signing headers. * * @example ['List-Unsubscribe', 'List-Help'] * * @var array */ public $DKIM_extraHeaders = []; /** * DKIM private key file path. * * @var string */ public $DKIM_private = ''; /** * DKIM private key string. * * If set, takes precedence over `$DKIM_private`. * * @var string */ public $DKIM_private_string = ''; /** * Callback Action function name. * * The function that handles the result of the send email action. * It is called out by send() for each email sent. * * Value can be any php callable: http://www.php.net/is_callable * * Parameters: * bool $result result of the send action * array $to email addresses of the recipients * array $cc cc email addresses * array $bcc bcc email addresses * string $subject the subject * string $body the email body * string $from email address of sender * string $extra extra information of possible use * "smtp_transaction_id' => last smtp transaction id * * @var string */ public $action_function = ''; /** * What to put in the X-Mailer header. * Options: An empty string for PHPMailer default, whitespace for none, or a string to use. * * @var string */ public $XMailer = ''; /** * Which validator to use by default when validating email addresses. * May be a callable to inject your own validator, but there are several built-in validators. * The default validator uses PHP's FILTER_VALIDATE_EMAIL filter_var option. * * @see PHPMailer::validateAddress() * * @var string|callable */ public static $validator = 'php'; /** * An instance of the SMTP sender class. * * @var SMTP */ protected $smtp; /** * The array of 'to' names and addresses. * * @var array */ protected $to = []; /** * The array of 'cc' names and addresses. * * @var array */ protected $cc = []; /** * The array of 'bcc' names and addresses. * * @var array */ protected $bcc = []; /** * The array of reply-to names and addresses. * * @var array */ protected $ReplyTo = []; /** * An array of all kinds of addresses. * Includes all of $to, $cc, $bcc. * * @see PHPMailer::$to * @see PHPMailer::$cc * @see PHPMailer::$bcc * * @var array */ protected $all_recipients = []; /** * An array of names and addresses queued for validation. * In send(), valid and non duplicate entries are moved to $all_recipients * and one of $to, $cc, or $bcc. * This array is used only for addresses with IDN. * * @see PHPMailer::$to * @see PHPMailer::$cc * @see PHPMailer::$bcc * @see PHPMailer::$all_recipients * * @var array */ protected $RecipientsQueue = []; /** * An array of reply-to names and addresses queued for validation. * In send(), valid and non duplicate entries are moved to $ReplyTo. * This array is used only for addresses with IDN. * * @see PHPMailer::$ReplyTo * * @var array */ protected $ReplyToQueue = []; /** * The array of attachments. * * @var array */ protected $attachment = []; /** * The array of custom headers. * * @var array */ protected $CustomHeader = []; /** * The most recent Message-ID (including angular brackets). * * @var string */ protected $lastMessageID = ''; /** * The message's MIME type. * * @var string */ protected $message_type = ''; /** * The array of MIME boundary strings. * * @var array */ protected $boundary = []; /** * The array of available languages. * * @var array */ protected $language = []; /** * The number of errors encountered. * * @var int */ protected $error_count = 0; /** * The S/MIME certificate file path. * * @var string */ protected $sign_cert_file = ''; /** * The S/MIME key file path. * * @var string */ protected $sign_key_file = ''; /** * The optional S/MIME extra certificates ("CA Chain") file path. * * @var string */ protected $sign_extracerts_file = ''; /** * The S/MIME password for the key. * Used only if the key is encrypted. * * @var string */ protected $sign_key_pass = ''; /** * Whether to throw exceptions for errors. * * @var bool */ protected $exceptions = false; /** * Unique ID used for message ID and boundaries. * * @var string */ protected $uniqueid = ''; /** * The PHPMailer Version number. * * @var string */ const VERSION = '6.0.7'; /** * Error severity: message only, continue processing. * * @var int */ const STOP_MESSAGE = 0; /** * Error severity: message, likely ok to continue processing. * * @var int */ const STOP_CONTINUE = 1; /** * Error severity: message, plus full stop, critical error reached. * * @var int */ const STOP_CRITICAL = 2; /** * SMTP RFC standard line ending. * * @var string */ protected static $LE = "\r\n"; /** * The maximum line length allowed by RFC 2822 section 2.1.1. * * @var int */ const MAX_LINE_LENGTH = 998; /** * The lower maximum line length allowed by RFC 2822 section 2.1.1. * This length does NOT include the line break * 76 means that lines will be 77 or 78 chars depending on whether * the line break format is LF or CRLF; both are valid. * * @var int */ const STD_LINE_LENGTH = 76; /** * Constructor. * * @param bool $exceptions Should we throw external exceptions? */ public function __construct($exceptions = null) { if (null !== $exceptions) { $this->exceptions = (bool) $exceptions; } //Pick an appropriate debug output format automatically $this->Debugoutput = (strpos(PHP_SAPI, 'cli') !== false ? 'echo' : 'html'); } /** * Destructor. */ public function __destruct() { //Close any open SMTP connection nicely $this->smtpClose(); } /** * Call mail() in a safe_mode-aware fashion. * Also, unless sendmail_path points to sendmail (or something that * claims to be sendmail), don't pass params (not a perfect fix, * but it will do). * * @param string $to To * @param string $subject Subject * @param string $body Message Body * @param string $header Additional Header(s) * @param string|null $params Params * * @return bool */ private function mailPassthru($to, $subject, $body, $header, $params) { //Check overloading of mail function to avoid double-encoding if (ini_get('mbstring.func_overload') & 1) { $subject = $this->secureHeader($subject); } else { $subject = $this->encodeHeader($this->secureHeader($subject)); } //Calling mail() with null params breaks if (!$this->UseSendmailOptions or null === $params) { $result = @mail($to, $subject, $body, $header); } else { $result = @mail($to, $subject, $body, $header, $params); } return $result; } /** * Output debugging info via user-defined method. * Only generates output if SMTP debug output is enabled (@see SMTP::$do_debug). * * @see PHPMailer::$Debugoutput * @see PHPMailer::$SMTPDebug * * @param string $str */ protected function edebug($str) { if ($this->SMTPDebug <= 0) { return; } //Is this a PSR-3 logger? if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) { $this->Debugoutput->debug($str); return; } //Avoid clash with built-in function names if (!in_array($this->Debugoutput, ['error_log', 'html', 'echo']) and is_callable($this->Debugoutput)) { call_user_func($this->Debugoutput, $str, $this->SMTPDebug); return; } switch ($this->Debugoutput) { case 'error_log': //Don't output, just log error_log($str); break; case 'html': //Cleans up output a bit for a better looking, HTML-safe output echo htmlentities( preg_replace('/[\r\n]+/', '', $str), ENT_QUOTES, 'UTF-8' ), "
\n"; break; case 'echo': default: //Normalize line breaks $str = preg_replace('/\r\n|\r/ms', "\n", $str); echo gmdate('Y-m-d H:i:s'), "\t", //Trim trailing space trim( //Indent for readability, except for trailing break str_replace( "\n", "\n \t ", trim($str) ) ), "\n"; } } /** * Sets message type to HTML or plain. * * @param bool $isHtml True for HTML mode */ public function isHTML($isHtml = true) { if ($isHtml) { $this->ContentType = static::CONTENT_TYPE_TEXT_HTML; } else { $this->ContentType = static::CONTENT_TYPE_PLAINTEXT; } } /** * Send messages using SMTP. */ public function isSMTP() { $this->Mailer = 'smtp'; } /** * Send messages using PHP's mail() function. */ public function isMail() { $this->Mailer = 'mail'; } /** * Send messages using $Sendmail. */ public function isSendmail() { $ini_sendmail_path = ini_get('sendmail_path'); if (false === stripos($ini_sendmail_path, 'sendmail')) { $this->Sendmail = '/usr/sbin/sendmail'; } else { $this->Sendmail = $ini_sendmail_path; } $this->Mailer = 'sendmail'; } /** * Send messages using qmail. */ public function isQmail() { $ini_sendmail_path = ini_get('sendmail_path'); if (false === stripos($ini_sendmail_path, 'qmail')) { $this->Sendmail = '/var/qmail/bin/qmail-inject'; } else { $this->Sendmail = $ini_sendmail_path; } $this->Mailer = 'qmail'; } /** * Add a "To" address. * * @param string $address The email address to send to * @param string $name * * @throws Exception * * @return bool true on success, false if address already used or invalid in some way */ public function addAddress($address, $name = '') { return $this->addOrEnqueueAnAddress('to', $address, $name); } /** * Add a "CC" address. * * @param string $address The email address to send to * @param string $name * * @throws Exception * * @return bool true on success, false if address already used or invalid in some way */ public function addCC($address, $name = '') { return $this->addOrEnqueueAnAddress('cc', $address, $name); } /** * Add a "BCC" address. * * @param string $address The email address to send to * @param string $name * * @throws Exception * * @return bool true on success, false if address already used or invalid in some way */ public function addBCC($address, $name = '') { return $this->addOrEnqueueAnAddress('bcc', $address, $name); } /** * Add a "Reply-To" address. * * @param string $address The email address to reply to * @param string $name * * @throws Exception * * @return bool true on success, false if address already used or invalid in some way */ public function addReplyTo($address, $name = '') { return $this->addOrEnqueueAnAddress('Reply-To', $address, $name); } /** * Add an address to one of the recipient arrays or to the ReplyTo array. Because PHPMailer * can't validate addresses with an IDN without knowing the PHPMailer::$CharSet (that can still * be modified after calling this function), addition of such addresses is delayed until send(). * Addresses that have been added already return false, but do not throw exceptions. * * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' * @param string $address The email address to send, resp. to reply to * @param string $name * * @throws Exception * * @return bool true on success, false if address already used or invalid in some way */ protected function addOrEnqueueAnAddress($kind, $address, $name) { $address = trim($address); $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim $pos = strrpos($address, '@'); if (false === $pos) { // At-sign is missing. $error_message = sprintf('%s (%s): %s', $this->lang('invalid_address'), $kind, $address); $this->setError($error_message); $this->edebug($error_message); if ($this->exceptions) { throw new Exception($error_message); } return false; } $params = [$kind, $address, $name]; // Enqueue addresses with IDN until we know the PHPMailer::$CharSet. if ($this->has8bitChars(substr($address, ++$pos)) and static::idnSupported()) { if ('Reply-To' != $kind) { if (!array_key_exists($address, $this->RecipientsQueue)) { $this->RecipientsQueue[$address] = $params; return true; } } else { if (!array_key_exists($address, $this->ReplyToQueue)) { $this->ReplyToQueue[$address] = $params; return true; } } return false; } // Immediately add standard addresses without IDN. return call_user_func_array([$this, 'addAnAddress'], $params); } /** * Add an address to one of the recipient arrays or to the ReplyTo array. * Addresses that have been added already return false, but do not throw exceptions. * * @param string $kind One of 'to', 'cc', 'bcc', or 'ReplyTo' * @param string $address The email address to send, resp. to reply to * @param string $name * * @throws Exception * * @return bool true on success, false if address already used or invalid in some way */ protected function addAnAddress($kind, $address, $name = '') { if (!in_array($kind, ['to', 'cc', 'bcc', 'Reply-To'])) { $error_message = sprintf('%s: %s', $this->lang('Invalid recipient kind'), $kind); $this->setError($error_message); $this->edebug($error_message); if ($this->exceptions) { throw new Exception($error_message); } return false; } if (!static::validateAddress($address)) { $error_message = sprintf('%s (%s): %s', $this->lang('invalid_address'), $kind, $address); $this->setError($error_message); $this->edebug($error_message); if ($this->exceptions) { throw new Exception($error_message); } return false; } if ('Reply-To' != $kind) { if (!array_key_exists(strtolower($address), $this->all_recipients)) { $this->{$kind}[] = [$address, $name]; $this->all_recipients[strtolower($address)] = true; return true; } } else { if (!array_key_exists(strtolower($address), $this->ReplyTo)) { $this->ReplyTo[strtolower($address)] = [$address, $name]; return true; } } return false; } /** * Parse and validate a string containing one or more RFC822-style comma-separated email addresses * of the form "display name
" into an array of name/address pairs. * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available. * Note that quotes in the name part are removed. * * @see http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation * * @param string $addrstr The address list string * @param bool $useimap Whether to use the IMAP extension to parse the list * * @return array */ public static function parseAddresses($addrstr, $useimap = true) { $addresses = []; if ($useimap and function_exists('imap_rfc822_parse_adrlist')) { //Use this built-in parser if it's available $list = imap_rfc822_parse_adrlist($addrstr, ''); foreach ($list as $address) { if ('.SYNTAX-ERROR.' != $address->host) { if (static::validateAddress($address->mailbox . '@' . $address->host)) { $addresses[] = [ 'name' => (property_exists($address, 'personal') ? $address->personal : ''), 'address' => $address->mailbox . '@' . $address->host, ]; } } } } else { //Use this simpler parser $list = explode(',', $addrstr); foreach ($list as $address) { $address = trim($address); //Is there a separate name part? if (strpos($address, '<') === false) { //No separate name, just use the whole thing if (static::validateAddress($address)) { $addresses[] = [ 'name' => '', 'address' => $address, ]; } } else { list($name, $email) = explode('<', $address); $email = trim(str_replace('>', '', $email)); if (static::validateAddress($email)) { $addresses[] = [ 'name' => trim(str_replace(['"', "'"], '', $name)), 'address' => $email, ]; } } } } return $addresses; } /** * Set the From and FromName properties. * * @param string $address * @param string $name * @param bool $auto Whether to also set the Sender address, defaults to true * * @throws Exception * * @return bool */ public function setFrom($address, $name = '', $auto = true) { $address = trim($address); $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim // Don't validate now addresses with IDN. Will be done in send(). $pos = strrpos($address, '@'); if (false === $pos or (!$this->has8bitChars(substr($address, ++$pos)) or !static::idnSupported()) and !static::validateAddress($address)) { $error_message = sprintf('%s (From): %s', $this->lang('invalid_address'), $address); $this->setError($error_message); $this->edebug($error_message); if ($this->exceptions) { throw new Exception($error_message); } return false; } $this->From = $address; $this->FromName = $name; if ($auto) { if (empty($this->Sender)) { $this->Sender = $address; } } return true; } /** * Return the Message-ID header of the last email. * Technically this is the value from the last time the headers were created, * but it's also the message ID of the last sent message except in * pathological cases. * * @return string */ public function getLastMessageID() { return $this->lastMessageID; } /** * Check that a string looks like an email address. * Validation patterns supported: * * `auto` Pick best pattern automatically; * * `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0; * * `pcre` Use old PCRE implementation; * * `php` Use PHP built-in FILTER_VALIDATE_EMAIL; * * `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements. * * `noregex` Don't use a regex: super fast, really dumb. * Alternatively you may pass in a callable to inject your own validator, for example: * * ```php * PHPMailer::validateAddress('user@example.com', function($address) { * return (strpos($address, '@') !== false); * }); * ``` * * You can also set the PHPMailer::$validator static to a callable, allowing built-in methods to use your validator. * * @param string $address The email address to check * @param string|callable $patternselect Which pattern to use * * @return bool */ public static function validateAddress($address, $patternselect = null) { if (null === $patternselect) { $patternselect = static::$validator; } if (is_callable($patternselect)) { return call_user_func($patternselect, $address); } //Reject line breaks in addresses; it's valid RFC5322, but not RFC5321 if (strpos($address, "\n") !== false or strpos($address, "\r") !== false) { return false; } switch ($patternselect) { case 'pcre': //Kept for BC case 'pcre8': /* * A more complex and more permissive version of the RFC5322 regex on which FILTER_VALIDATE_EMAIL * is based. * In addition to the addresses allowed by filter_var, also permits: * * dotless domains: `a@b` * * comments: `1234 @ local(blah) .machine .example` * * quoted elements: `'"test blah"@example.org'` * * numeric TLDs: `a@b.123` * * unbracketed IPv4 literals: `a@192.168.0.1` * * IPv6 literals: 'first.last@[IPv6:a1::]' * Not all of these will necessarily work for sending! * * @see http://squiloople.com/2009/12/20/email-address-validation/ * @copyright 2009-2010 Michael Rushton * Feel free to use and redistribute this code. But please keep this copyright notice. */ return (bool) preg_match( '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' . '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' . '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' . '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' . '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' . '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' . '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' . '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' . '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD', $address ); case 'html5': /* * This is the pattern used in the HTML5 spec for validation of 'email' type form input elements. * * @see http://www.whatwg.org/specs/web-apps/current-work/#e-mail-state-(type=email) */ return (bool) preg_match( '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[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])?)*$/sD', $address ); case 'php': default: return (bool) filter_var($address, FILTER_VALIDATE_EMAIL); } } /** * Tells whether IDNs (Internationalized Domain Names) are supported or not. This requires the * `intl` and `mbstring` PHP extensions. * * @return bool `true` if required functions for IDN support are present */ public static function idnSupported() { return function_exists('idn_to_ascii') and function_exists('mb_convert_encoding'); } /** * Converts IDN in given email address to its ASCII form, also known as punycode, if possible. * Important: Address must be passed in same encoding as currently set in PHPMailer::$CharSet. * This function silently returns unmodified address if: * - No conversion is necessary (i.e. domain name is not an IDN, or is already in ASCII form) * - Conversion to punycode is impossible (e.g. required PHP functions are not available) * or fails for any reason (e.g. domain contains characters not allowed in an IDN). * * @see PHPMailer::$CharSet * * @param string $address The email address to convert * * @return string The encoded address in ASCII form */ public function punyencodeAddress($address) { // Verify we have required functions, CharSet, and at-sign. $pos = strrpos($address, '@'); if (static::idnSupported() and !empty($this->CharSet) and false !== $pos ) { $domain = substr($address, ++$pos); // Verify CharSet string is a valid one, and domain properly encoded in this CharSet. if ($this->has8bitChars($domain) and @mb_check_encoding($domain, $this->CharSet)) { $domain = mb_convert_encoding($domain, 'UTF-8', $this->CharSet); //Ignore IDE complaints about this line - method signature changed in PHP 5.4 $errorcode = 0; $punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_UTS46); if (false !== $punycode) { return substr($address, 0, $pos) . $punycode; } } } return $address; } /** * Create a message and send it. * Uses the sending method specified by $Mailer. * * @throws Exception * * @return bool false on error - See the ErrorInfo property for details of the error */ public function send() { try { if (!$this->preSend()) { return false; } return $this->postSend(); } catch (Exception $exc) { $this->mailHeader = ''; $this->setError($exc->getMessage()); if ($this->exceptions) { throw $exc; } return false; } } /** * Prepare a message for sending. * * @throws Exception * * @return bool */ public function preSend() { if ('smtp' == $this->Mailer or ('mail' == $this->Mailer and stripos(PHP_OS, 'WIN') === 0) ) { //SMTP mandates RFC-compliant line endings //and it's also used with mail() on Windows static::setLE("\r\n"); } else { //Maintain backward compatibility with legacy Linux command line mailers static::setLE(PHP_EOL); } //Check for buggy PHP versions that add a header with an incorrect line break if (ini_get('mail.add_x_header') == 1 and 'mail' == $this->Mailer and stripos(PHP_OS, 'WIN') === 0 and ((version_compare(PHP_VERSION, '7.0.0', '>=') and version_compare(PHP_VERSION, '7.0.17', '<')) or (version_compare(PHP_VERSION, '7.1.0', '>=') and version_compare(PHP_VERSION, '7.1.3', '<'))) ) { trigger_error( 'Your version of PHP is affected by a bug that may result in corrupted messages.' . ' To fix it, switch to sending using SMTP, disable the mail.add_x_header option in' . ' your php.ini, switch to MacOS or Linux, or upgrade your PHP to version 7.0.17+ or 7.1.3+.', E_USER_WARNING ); } try { $this->error_count = 0; // Reset errors $this->mailHeader = ''; // Dequeue recipient and Reply-To addresses with IDN foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) { $params[1] = $this->punyencodeAddress($params[1]); call_user_func_array([$this, 'addAnAddress'], $params); } if (count($this->to) + count($this->cc) + count($this->bcc) < 1) { throw new Exception($this->lang('provide_address'), self::STOP_CRITICAL); } // Validate From, Sender, and ConfirmReadingTo addresses foreach (['From', 'Sender', 'ConfirmReadingTo'] as $address_kind) { $this->$address_kind = trim($this->$address_kind); if (empty($this->$address_kind)) { continue; } $this->$address_kind = $this->punyencodeAddress($this->$address_kind); if (!static::validateAddress($this->$address_kind)) { $error_message = sprintf('%s (%s): %s', $this->lang('invalid_address'), $address_kind, $this->$address_kind); $this->setError($error_message); $this->edebug($error_message); if ($this->exceptions) { throw new Exception($error_message); } return false; } } // Set whether the message is multipart/alternative if ($this->alternativeExists()) { $this->ContentType = static::CONTENT_TYPE_MULTIPART_ALTERNATIVE; } $this->setMessageType(); // Refuse to send an empty message unless we are specifically allowing it if (!$this->AllowEmpty and empty($this->Body)) { throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL); } //Trim subject consistently $this->Subject = trim($this->Subject); // Create body before headers in case body makes changes to headers (e.g. altering transfer encoding) $this->MIMEHeader = ''; $this->MIMEBody = $this->createBody(); // createBody may have added some headers, so retain them $tempheaders = $this->MIMEHeader; $this->MIMEHeader = $this->createHeader(); $this->MIMEHeader .= $tempheaders; // To capture the complete message when using mail(), create // an extra header list which createHeader() doesn't fold in if ('mail' == $this->Mailer) { if (count($this->to) > 0) { $this->mailHeader .= $this->addrAppend('To', $this->to); } else { $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;'); } $this->mailHeader .= $this->headerLine( 'Subject', $this->encodeHeader($this->secureHeader($this->Subject)) ); } // Sign with DKIM if enabled if (!empty($this->DKIM_domain) and !empty($this->DKIM_selector) and (!empty($this->DKIM_private_string) or (!empty($this->DKIM_private) and static::isPermittedPath($this->DKIM_private) and file_exists($this->DKIM_private) ) ) ) { $header_dkim = $this->DKIM_Add( $this->MIMEHeader . $this->mailHeader, $this->encodeHeader($this->secureHeader($this->Subject)), $this->MIMEBody ); $this->MIMEHeader = rtrim($this->MIMEHeader, "\r\n ") . static::$LE . static::normalizeBreaks($header_dkim) . static::$LE; } return true; } catch (Exception $exc) { $this->setError($exc->getMessage()); if ($this->exceptions) { throw $exc; } return false; } } /** * Actually send a message via the selected mechanism. * * @throws Exception * * @return bool */ public function postSend() { try { // Choose the mailer and send through it switch ($this->Mailer) { case 'sendmail': case 'qmail': return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody); case 'smtp': return $this->smtpSend($this->MIMEHeader, $this->MIMEBody); case 'mail': return $this->mailSend($this->MIMEHeader, $this->MIMEBody); default: $sendMethod = $this->Mailer . 'Send'; if (method_exists($this, $sendMethod)) { return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody); } return $this->mailSend($this->MIMEHeader, $this->MIMEBody); } } catch (Exception $exc) { $this->setError($exc->getMessage()); $this->edebug($exc->getMessage()); if ($this->exceptions) { throw $exc; } } return false; } /** * Send mail using the $Sendmail program. * * @see PHPMailer::$Sendmail * * @param string $header The message headers * @param string $body The message body * * @throws Exception * * @return bool */ protected function sendmailSend($header, $body) { // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. if (!empty($this->Sender) and self::isShellSafe($this->Sender)) { if ('qmail' == $this->Mailer) { $sendmailFmt = '%s -f%s'; } else { $sendmailFmt = '%s -oi -f%s -t'; } } else { if ('qmail' == $this->Mailer) { $sendmailFmt = '%s'; } else { $sendmailFmt = '%s -oi -t'; } } $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender); if ($this->SingleTo) { foreach ($this->SingleToArray as $toAddr) { $mail = @popen($sendmail, 'w'); if (!$mail) { throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); } fwrite($mail, 'To: ' . $toAddr . "\n"); fwrite($mail, $header); fwrite($mail, $body); $result = pclose($mail); $this->doCallback( ($result == 0), [$toAddr], $this->cc, $this->bcc, $this->Subject, $body, $this->From, [] ); if (0 !== $result) { throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); } } } else { $mail = @popen($sendmail, 'w'); if (!$mail) { throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); } fwrite($mail, $header); fwrite($mail, $body); $result = pclose($mail); $this->doCallback( ($result == 0), $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From, [] ); if (0 !== $result) { throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL); } } return true; } /** * Fix CVE-2016-10033 and CVE-2016-10045 by disallowing potentially unsafe shell characters. * Note that escapeshellarg and escapeshellcmd are inadequate for our purposes, especially on Windows. * * @see https://github.com/PHPMailer/PHPMailer/issues/924 CVE-2016-10045 bug report * * @param string $string The string to be validated * * @return bool */ protected static function isShellSafe($string) { // Future-proof if (escapeshellcmd($string) !== $string or !in_array(escapeshellarg($string), ["'$string'", "\"$string\""]) ) { return false; } $length = strlen($string); for ($i = 0; $i < $length; ++$i) { $c = $string[$i]; // All other characters have a special meaning in at least one common shell, including = and +. // Full stop (.) has a special meaning in cmd.exe, but its impact should be negligible here. // Note that this does permit non-Latin alphanumeric characters based on the current locale. if (!ctype_alnum($c) && strpos('@_-.', $c) === false) { return false; } } return true; } /** * Check whether a file path is of a permitted type. * Used to reject URLs and phar files from functions that access local file paths, * such as addAttachment. * * @param string $path A relative or absolute path to a file * * @return bool */ protected static function isPermittedPath($path) { return !preg_match('#^[a-z]+://#i', $path); } /** * Send mail using the PHP mail() function. * * @see http://www.php.net/manual/en/book.mail.php * * @param string $header The message headers * @param string $body The message body * * @throws Exception * * @return bool */ protected function mailSend($header, $body) { $toArr = []; foreach ($this->to as $toaddr) { $toArr[] = $this->addrFormat($toaddr); } $to = implode(', ', $toArr); $params = null; //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver if (!empty($this->Sender) and static::validateAddress($this->Sender)) { //A space after `-f` is optional, but there is a long history of its presence //causing problems, so we don't use one //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html //Example problem: https://www.drupal.org/node/1057954 // CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped. if (self::isShellSafe($this->Sender)) { $params = sprintf('-f%s', $this->Sender); } } if (!empty($this->Sender) and static::validateAddress($this->Sender)) { $old_from = ini_get('sendmail_from'); ini_set('sendmail_from', $this->Sender); } $result = false; if ($this->SingleTo and count($toArr) > 1) { foreach ($toArr as $toAddr) { $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params); $this->doCallback($result, [$toAddr], $this->cc, $this->bcc, $this->Subject, $body, $this->From, []); } } else { $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params); $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From, []); } if (isset($old_from)) { ini_set('sendmail_from', $old_from); } if (!$result) { throw new Exception($this->lang('instantiate'), self::STOP_CRITICAL); } return true; } /** * Get an instance to use for SMTP operations. * Override this function to load your own SMTP implementation, * or set one with setSMTPInstance. * * @return SMTP */ public function getSMTPInstance() { if (!is_object($this->smtp)) { $this->smtp = new SMTP(); } return $this->smtp; } /** * Provide an instance to use for SMTP operations. * * @param SMTP $smtp * * @return SMTP */ public function setSMTPInstance(SMTP $smtp) { $this->smtp = $smtp; return $this->smtp; } /** * Send mail via SMTP. * Returns false if there is a bad MAIL FROM, RCPT, or DATA input. * * @see PHPMailer::setSMTPInstance() to use a different class. * * @uses \PHPMailer\PHPMailer\SMTP * * @param string $header The message headers * @param string $body The message body * * @throws Exception * * @return bool */ protected function smtpSend($header, $body) { $bad_rcpt = []; if (!$this->smtpConnect($this->SMTPOptions)) { throw new Exception($this->lang('smtp_connect_failed'), self::STOP_CRITICAL); } //Sender already validated in preSend() if ('' == $this->Sender) { $smtp_from = $this->From; } else { $smtp_from = $this->Sender; } if (!$this->smtp->mail($smtp_from)) { $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError())); throw new Exception($this->ErrorInfo, self::STOP_CRITICAL); } $callbacks = []; // Attempt to send to all recipients foreach ([$this->to, $this->cc, $this->bcc] as $togroup) { foreach ($togroup as $to) { if (!$this->smtp->recipient($to[0], $this->dsn)) { $error = $this->smtp->getError(); $bad_rcpt[] = ['to' => $to[0], 'error' => $error['detail']]; $isSent = false; } else { $isSent = true; } $callbacks[] = ['issent'=>$isSent, 'to'=>$to[0]]; } } // Only send the DATA command if we have viable recipients if ((count($this->all_recipients) > count($bad_rcpt)) and !$this->smtp->data($header . $body)) { throw new Exception($this->lang('data_not_accepted'), self::STOP_CRITICAL); } $smtp_transaction_id = $this->smtp->getLastTransactionID(); if ($this->SMTPKeepAlive) { $this->smtp->reset(); } else { $this->smtp->quit(); $this->smtp->close(); } foreach ($callbacks as $cb) { $this->doCallback( $cb['issent'], [$cb['to']], [], [], $this->Subject, $body, $this->From, ['smtp_transaction_id' => $smtp_transaction_id] ); } //Create error message for any bad addresses if (count($bad_rcpt) > 0) { $errstr = ''; foreach ($bad_rcpt as $bad) { $errstr .= $bad['to'] . ': ' . $bad['error']; } throw new Exception( $this->lang('recipients_failed') . $errstr, self::STOP_CONTINUE ); } return true; } /** * Initiate a connection to an SMTP server. * Returns false if the operation failed. * * @param array $options An array of options compatible with stream_context_create() * * @throws Exception * * @uses \PHPMailer\PHPMailer\SMTP * * @return bool */ public function smtpConnect($options = null) { if (null === $this->smtp) { $this->smtp = $this->getSMTPInstance(); } //If no options are provided, use whatever is set in the instance if (null === $options) { $options = $this->SMTPOptions; } // Already connected? if ($this->smtp->connected()) { return true; } $this->smtp->setTimeout($this->Timeout); $this->smtp->setDebugLevel($this->SMTPDebug); $this->smtp->setDebugOutput($this->Debugoutput); $this->smtp->setVerp($this->do_verp); $hosts = explode(';', $this->Host); $lastexception = null; foreach ($hosts as $hostentry) { $hostinfo = []; if (!preg_match( '/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*|\[[a-fA-F0-9:]+\]):?([0-9]*)$/', trim($hostentry), $hostinfo )) { static::edebug($this->lang('connect_host') . ' ' . $hostentry); // Not a valid host entry continue; } // $hostinfo[2]: optional ssl or tls prefix // $hostinfo[3]: the hostname // $hostinfo[4]: optional port number // The host string prefix can temporarily override the current setting for SMTPSecure // If it's not specified, the default value is used //Check the host name is a valid name or IP address before trying to use it if (!static::isValidHost($hostinfo[3])) { static::edebug($this->lang('connect_host') . ' ' . $hostentry); continue; } $prefix = ''; $secure = $this->SMTPSecure; $tls = ('tls' == $this->SMTPSecure); if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) { $prefix = 'ssl://'; $tls = false; // Can't have SSL and TLS at the same time $secure = 'ssl'; } elseif ('tls' == $hostinfo[2]) { $tls = true; // tls doesn't use a prefix $secure = 'tls'; } //Do we need the OpenSSL extension? $sslext = defined('OPENSSL_ALGO_SHA256'); if ('tls' === $secure or 'ssl' === $secure) { //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled if (!$sslext) { throw new Exception($this->lang('extension_missing') . 'openssl', self::STOP_CRITICAL); } } $host = $hostinfo[3]; $port = $this->Port; $tport = (int) $hostinfo[4]; if ($tport > 0 and $tport < 65536) { $port = $tport; } if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) { try { if ($this->Helo) { $hello = $this->Helo; } else { $hello = $this->serverHostname(); } $this->smtp->hello($hello); //Automatically enable TLS encryption if: // * it's not disabled // * we have openssl extension // * we are not already using SSL // * the server offers STARTTLS if ($this->SMTPAutoTLS and $sslext and 'ssl' != $secure and $this->smtp->getServerExt('STARTTLS')) { $tls = true; } if ($tls) { if (!$this->smtp->startTLS()) { throw new Exception($this->lang('connect_host')); } // We must resend EHLO after TLS negotiation $this->smtp->hello($hello); } if ($this->SMTPAuth) { if (!$this->smtp->authenticate( $this->Username, $this->Password, $this->AuthType, $this->oauth ) ) { throw new Exception($this->lang('authenticate')); } } return true; } catch (Exception $exc) { $lastexception = $exc; $this->edebug($exc->getMessage()); // We must have connected, but then failed TLS or Auth, so close connection nicely $this->smtp->quit(); } } } // If we get here, all connection attempts have failed, so close connection hard $this->smtp->close(); // As we've caught all exceptions, just report whatever the last one was if ($this->exceptions and null !== $lastexception) { throw $lastexception; } return false; } /** * Close the active SMTP session if one exists. */ public function smtpClose() { if (null !== $this->smtp) { if ($this->smtp->connected()) { $this->smtp->quit(); $this->smtp->close(); } } } /** * Set the language for error messages. * Returns false if it cannot load the language file. * The default language is English. * * @param string $langcode ISO 639-1 2-character language code (e.g. French is "fr") * @param string $lang_path Path to the language file directory, with trailing separator (slash) * * @return bool */ public function setLanguage($langcode = 'en', $lang_path = '') { // Backwards compatibility for renamed language codes $renamed_langcodes = [ 'br' => 'pt_br', 'cz' => 'cs', 'dk' => 'da', 'no' => 'nb', 'se' => 'sv', 'rs' => 'sr', 'tg' => 'tl', ]; if (isset($renamed_langcodes[$langcode])) { $langcode = $renamed_langcodes[$langcode]; } // Define full set of translatable strings in English $PHPMAILER_LANG = [ 'authenticate' => 'SMTP Error: Could not authenticate.', 'connect_host' => 'SMTP Error: Could not connect to SMTP host.', 'data_not_accepted' => 'SMTP Error: data not accepted.', 'empty_message' => 'Message body empty', 'encoding' => 'Unknown encoding: ', 'execute' => 'Could not execute: ', 'file_access' => 'Could not access file: ', 'file_open' => 'File Error: Could not open file: ', 'from_failed' => 'The following From address failed: ', 'instantiate' => 'Could not instantiate mail function.', 'invalid_address' => 'Invalid address: ', 'mailer_not_supported' => ' mailer is not supported.', 'provide_address' => 'You must provide at least one recipient email address.', 'recipients_failed' => 'SMTP Error: The following recipients failed: ', 'signing' => 'Signing Error: ', 'smtp_connect_failed' => 'SMTP connect() failed.', 'smtp_error' => 'SMTP server error: ', 'variable_set' => 'Cannot set or reset variable: ', 'extension_missing' => 'Extension missing: ', ]; if (empty($lang_path)) { // Calculate an absolute path so it can work if CWD is not here $lang_path = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR; } //Validate $langcode if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) { $langcode = 'en'; } $foundlang = true; $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php'; // There is no English translation file if ('en' != $langcode) { // Make sure language file path is readable if (!static::isPermittedPath($lang_file) || !file_exists($lang_file)) { $foundlang = false; } else { // Overwrite language-specific strings. // This way we'll never have missing translation keys. $foundlang = include $lang_file; } } $this->language = $PHPMAILER_LANG; return (bool) $foundlang; // Returns false if language not found } /** * Get the array of strings for the current language. * * @return array */ public function getTranslations() { return $this->language; } /** * Create recipient headers. * * @param string $type * @param array $addr An array of recipients, * where each recipient is a 2-element indexed array with element 0 containing an address * and element 1 containing a name, like: * [['joe@example.com', 'Joe User'], ['zoe@example.com', 'Zoe User']] * * @return string */ public function addrAppend($type, $addr) { $addresses = []; foreach ($addr as $address) { $addresses[] = $this->addrFormat($address); } return $type . ': ' . implode(', ', $addresses) . static::$LE; } /** * Format an address for use in a message header. * * @param array $addr A 2-element indexed array, element 0 containing an address, element 1 containing a name like * ['joe@example.com', 'Joe User'] * * @return string */ public function addrFormat($addr) { if (empty($addr[1])) { // No name provided return $this->secureHeader($addr[0]); } return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . ' <' . $this->secureHeader( $addr[0] ) . '>'; } /** * Word-wrap message. * For use with mailers that do not automatically perform wrapping * and for quoted-printable encoded messages. * Original written by philippe. * * @param string $message The message to wrap * @param int $length The line length to wrap to * @param bool $qp_mode Whether to run in Quoted-Printable mode * * @return string */ public function wrapText($message, $length, $qp_mode = false) { if ($qp_mode) { $soft_break = sprintf(' =%s', static::$LE); } else { $soft_break = static::$LE; } // If utf-8 encoding is used, we will need to make sure we don't // split multibyte characters when we wrap $is_utf8 = static::CHARSET_UTF8 === strtolower($this->CharSet); $lelen = strlen(static::$LE); $crlflen = strlen(static::$LE); $message = static::normalizeBreaks($message); //Remove a trailing line break if (substr($message, -$lelen) == static::$LE) { $message = substr($message, 0, -$lelen); } //Split message into lines $lines = explode(static::$LE, $message); //Message will be rebuilt in here $message = ''; foreach ($lines as $line) { $words = explode(' ', $line); $buf = ''; $firstword = true; foreach ($words as $word) { if ($qp_mode and (strlen($word) > $length)) { $space_left = $length - strlen($buf) - $crlflen; if (!$firstword) { if ($space_left > 20) { $len = $space_left; if ($is_utf8) { $len = $this->utf8CharBoundary($word, $len); } elseif ('=' == substr($word, $len - 1, 1)) { --$len; } elseif ('=' == substr($word, $len - 2, 1)) { $len -= 2; } $part = substr($word, 0, $len); $word = substr($word, $len); $buf .= ' ' . $part; $message .= $buf . sprintf('=%s', static::$LE); } else { $message .= $buf . $soft_break; } $buf = ''; } while (strlen($word) > 0) { if ($length <= 0) { break; } $len = $length; if ($is_utf8) { $len = $this->utf8CharBoundary($word, $len); } elseif ('=' == substr($word, $len - 1, 1)) { --$len; } elseif ('=' == substr($word, $len - 2, 1)) { $len -= 2; } $part = substr($word, 0, $len); $word = substr($word, $len); if (strlen($word) > 0) { $message .= $part . sprintf('=%s', static::$LE); } else { $buf = $part; } } } else { $buf_o = $buf; if (!$firstword) { $buf .= ' '; } $buf .= $word; if (strlen($buf) > $length and '' != $buf_o) { $message .= $buf_o . $soft_break; $buf = $word; } } $firstword = false; } $message .= $buf . static::$LE; } return $message; } /** * Find the last character boundary prior to $maxLength in a utf-8 * quoted-printable encoded string. * Original written by Colin Brown. * * @param string $encodedText utf-8 QP text * @param int $maxLength Find the last character boundary prior to this length * * @return int */ public function utf8CharBoundary($encodedText, $maxLength) { $foundSplitPos = false; $lookBack = 3; while (!$foundSplitPos) { $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack); $encodedCharPos = strpos($lastChunk, '='); if (false !== $encodedCharPos) { // Found start of encoded character byte within $lookBack block. // Check the encoded byte value (the 2 chars after the '=') $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2); $dec = hexdec($hex); if ($dec < 128) { // Single byte character. // If the encoded char was found at pos 0, it will fit // otherwise reduce maxLength to start of the encoded char if ($encodedCharPos > 0) { $maxLength -= $lookBack - $encodedCharPos; } $foundSplitPos = true; } elseif ($dec >= 192) { // First byte of a multi byte character // Reduce maxLength to split at start of character $maxLength -= $lookBack - $encodedCharPos; $foundSplitPos = true; } elseif ($dec < 192) { // Middle byte of a multi byte character, look further back $lookBack += 3; } } else { // No encoded character found $foundSplitPos = true; } } return $maxLength; } /** * Apply word wrapping to the message body. * Wraps the message body to the number of chars set in the WordWrap property. * You should only do this to plain-text bodies as wrapping HTML tags may break them. * This is called automatically by createBody(), so you don't need to call it yourself. */ public function setWordWrap() { if ($this->WordWrap < 1) { return; } switch ($this->message_type) { case 'alt': case 'alt_inline': case 'alt_attach': case 'alt_inline_attach': $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap); break; default: $this->Body = $this->wrapText($this->Body, $this->WordWrap); break; } } /** * Assemble message headers. * * @return string The assembled headers */ public function createHeader() { $result = ''; $result .= $this->headerLine('Date', '' == $this->MessageDate ? self::rfcDate() : $this->MessageDate); // To be created automatically by mail() if ($this->SingleTo) { if ('mail' != $this->Mailer) { foreach ($this->to as $toaddr) { $this->SingleToArray[] = $this->addrFormat($toaddr); } } } else { if (count($this->to) > 0) { if ('mail' != $this->Mailer) { $result .= $this->addrAppend('To', $this->to); } } elseif (count($this->cc) == 0) { $result .= $this->headerLine('To', 'undisclosed-recipients:;'); } } $result .= $this->addrAppend('From', [[trim($this->From), $this->FromName]]); // sendmail and mail() extract Cc from the header before sending if (count($this->cc) > 0) { $result .= $this->addrAppend('Cc', $this->cc); } // sendmail and mail() extract Bcc from the header before sending if (( 'sendmail' == $this->Mailer or 'qmail' == $this->Mailer or 'mail' == $this->Mailer ) and count($this->bcc) > 0 ) { $result .= $this->addrAppend('Bcc', $this->bcc); } if (count($this->ReplyTo) > 0) { $result .= $this->addrAppend('Reply-To', $this->ReplyTo); } // mail() sets the subject itself if ('mail' != $this->Mailer) { $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject))); } // Only allow a custom message ID if it conforms to RFC 5322 section 3.6.4 // https://tools.ietf.org/html/rfc5322#section-3.6.4 if ('' != $this->MessageID and preg_match('/^<.*@.*>$/', $this->MessageID)) { $this->lastMessageID = $this->MessageID; } else { $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname()); } $result .= $this->headerLine('Message-ID', $this->lastMessageID); if (null !== $this->Priority) { $result .= $this->headerLine('X-Priority', $this->Priority); } if ('' == $this->XMailer) { $result .= $this->headerLine( 'X-Mailer', 'PHPMailer ' . self::VERSION ); } else { $myXmailer = trim($this->XMailer); if ($myXmailer) { $result .= $this->headerLine('X-Mailer', $myXmailer); } } if ('' != $this->ConfirmReadingTo) { $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>'); } // Add custom headers foreach ($this->CustomHeader as $header) { $result .= $this->headerLine( trim($header[0]), $this->encodeHeader(trim($header[1])) ); } if (!$this->sign_key_file) { $result .= $this->headerLine('MIME-Version', '1.0'); $result .= $this->getMailMIME(); } return $result; } /** * Get the message MIME type headers. * * @return string */ public function getMailMIME() { $result = ''; $ismultipart = true; switch ($this->message_type) { case 'inline': $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"'); break; case 'attach': case 'inline_attach': case 'alt_attach': case 'alt_inline_attach': $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_MIXED . ';'); $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"'); break; case 'alt': case 'alt_inline': $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"'); break; default: // Catches case 'plain': and case '': $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet); $ismultipart = false; break; } // RFC1341 part 5 says 7bit is assumed if not specified if (static::ENCODING_7BIT != $this->Encoding) { // RFC 2045 section 6.4 says multipart MIME parts may only use 7bit, 8bit or binary CTE if ($ismultipart) { if (static::ENCODING_8BIT == $this->Encoding) { $result .= $this->headerLine('Content-Transfer-Encoding', static::ENCODING_8BIT); } // The only remaining alternatives are quoted-printable and base64, which are both 7bit compatible } else { $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding); } } if ('mail' != $this->Mailer) { $result .= static::$LE; } return $result; } /** * Returns the whole MIME message. * Includes complete headers and body. * Only valid post preSend(). * * @see PHPMailer::preSend() * * @return string */ public function getSentMIMEMessage() { return rtrim($this->MIMEHeader . $this->mailHeader, "\n\r") . static::$LE . static::$LE . $this->MIMEBody; } /** * Create a unique ID to use for boundaries. * * @return string */ protected function generateId() { $len = 32; //32 bytes = 256 bits if (function_exists('random_bytes')) { $bytes = random_bytes($len); } elseif (function_exists('openssl_random_pseudo_bytes')) { $bytes = openssl_random_pseudo_bytes($len); } else { //Use a hash to force the length to the same as the other methods $bytes = hash('sha256', uniqid((string) mt_rand(), true), true); } //We don't care about messing up base64 format here, just want a random string return str_replace(['=', '+', '/'], '', base64_encode(hash('sha256', $bytes, true))); } /** * Assemble the message body. * Returns an empty string on failure. * * @throws Exception * * @return string The assembled message body */ public function createBody() { $body = ''; //Create unique IDs and preset boundaries $this->uniqueid = $this->generateId(); $this->boundary[1] = 'b1_' . $this->uniqueid; $this->boundary[2] = 'b2_' . $this->uniqueid; $this->boundary[3] = 'b3_' . $this->uniqueid; if ($this->sign_key_file) { $body .= $this->getMailMIME() . static::$LE; } $this->setWordWrap(); $bodyEncoding = $this->Encoding; $bodyCharSet = $this->CharSet; //Can we do a 7-bit downgrade? if (static::ENCODING_8BIT == $bodyEncoding and !$this->has8bitChars($this->Body)) { $bodyEncoding = static::ENCODING_7BIT; //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit $bodyCharSet = 'us-ascii'; } //If lines are too long, and we're not already using an encoding that will shorten them, //change to quoted-printable transfer encoding for the body part only if (static::ENCODING_BASE64 != $this->Encoding and static::hasLineLongerThanMax($this->Body)) { $bodyEncoding = static::ENCODING_QUOTED_PRINTABLE; } $altBodyEncoding = $this->Encoding; $altBodyCharSet = $this->CharSet; //Can we do a 7-bit downgrade? if (static::ENCODING_8BIT == $altBodyEncoding and !$this->has8bitChars($this->AltBody)) { $altBodyEncoding = static::ENCODING_7BIT; //All ISO 8859, Windows codepage and UTF-8 charsets are ascii compatible up to 7-bit $altBodyCharSet = 'us-ascii'; } //If lines are too long, and we're not already using an encoding that will shorten them, //change to quoted-printable transfer encoding for the alt body part only if (static::ENCODING_BASE64 != $altBodyEncoding and static::hasLineLongerThanMax($this->AltBody)) { $altBodyEncoding = static::ENCODING_QUOTED_PRINTABLE; } //Use this as a preamble in all multipart message types $mimepre = 'This is a multi-part message in MIME format.' . static::$LE; switch ($this->message_type) { case 'inline': $body .= $mimepre; $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; $body .= $this->attachAll('inline', $this->boundary[1]); break; case 'attach': $body .= $mimepre; $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; $body .= $this->attachAll('attachment', $this->boundary[1]); break; case 'inline_attach': $body .= $mimepre; $body .= $this->textLine('--' . $this->boundary[1]); $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; $body .= $this->attachAll('inline', $this->boundary[2]); $body .= static::$LE; $body .= $this->attachAll('attachment', $this->boundary[1]); break; case 'alt': $body .= $mimepre; $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding); $body .= $this->encodeString($this->AltBody, $altBodyEncoding); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; if (!empty($this->Ical)) { $body .= $this->getBoundary($this->boundary[1], '', static::CONTENT_TYPE_TEXT_CALENDAR . '; method=REQUEST', ''); $body .= $this->encodeString($this->Ical, $this->Encoding); $body .= static::$LE; } $body .= $this->endBoundary($this->boundary[1]); break; case 'alt_inline': $body .= $mimepre; $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding); $body .= $this->encodeString($this->AltBody, $altBodyEncoding); $body .= static::$LE; $body .= $this->textLine('--' . $this->boundary[1]); $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; $body .= $this->attachAll('inline', $this->boundary[2]); $body .= static::$LE; $body .= $this->endBoundary($this->boundary[1]); break; case 'alt_attach': $body .= $mimepre; $body .= $this->textLine('--' . $this->boundary[1]); $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding); $body .= $this->encodeString($this->AltBody, $altBodyEncoding); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; if (!empty($this->Ical)) { $body .= $this->getBoundary($this->boundary[2], '', static::CONTENT_TYPE_TEXT_CALENDAR . '; method=REQUEST', ''); $body .= $this->encodeString($this->Ical, $this->Encoding); } $body .= $this->endBoundary($this->boundary[2]); $body .= static::$LE; $body .= $this->attachAll('attachment', $this->boundary[1]); break; case 'alt_inline_attach': $body .= $mimepre; $body .= $this->textLine('--' . $this->boundary[1]); $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';'); $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"'); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding); $body .= $this->encodeString($this->AltBody, $altBodyEncoding); $body .= static::$LE; $body .= $this->textLine('--' . $this->boundary[2]); $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';'); $body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"'); $body .= static::$LE; $body .= $this->getBoundary($this->boundary[3], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding); $body .= $this->encodeString($this->Body, $bodyEncoding); $body .= static::$LE; $body .= $this->attachAll('inline', $this->boundary[3]); $body .= static::$LE; $body .= $this->endBoundary($this->boundary[2]); $body .= static::$LE; $body .= $this->attachAll('attachment', $this->boundary[1]); break; default: // Catch case 'plain' and case '', applies to simple `text/plain` and `text/html` body content types //Reset the `Encoding` property in case we changed it for line length reasons $this->Encoding = $bodyEncoding; $body .= $this->encodeString($this->Body, $this->Encoding); break; } if ($this->isError()) { $body = ''; if ($this->exceptions) { throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL); } } elseif ($this->sign_key_file) { try { if (!defined('PKCS7_TEXT')) { throw new Exception($this->lang('extension_missing') . 'openssl'); } $file = fopen('php://temp', 'rb+'); $signed = fopen('php://temp', 'rb+'); fwrite($file, $body); //Workaround for PHP bug https://bugs.php.net/bug.php?id=69197 if (empty($this->sign_extracerts_file)) { $sign = @openssl_pkcs7_sign( $file, $signed, 'file://' . realpath($this->sign_cert_file), ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], [] ); } else { $sign = @openssl_pkcs7_sign( $file, $signed, 'file://' . realpath($this->sign_cert_file), ['file://' . realpath($this->sign_key_file), $this->sign_key_pass], [], PKCS7_DETACHED, $this->sign_extracerts_file ); } fclose($file); if ($sign) { $body = file_get_contents($signed); fclose($signed); //The message returned by openssl contains both headers and body, so need to split them up $parts = explode("\n\n", $body, 2); $this->MIMEHeader .= $parts[0] . static::$LE . static::$LE; $body = $parts[1]; } else { fclose($signed); throw new Exception($this->lang('signing') . openssl_error_string()); } } catch (Exception $exc) { $body = ''; if ($this->exceptions) { throw $exc; } } } return $body; } /** * Return the start of a message boundary. * * @param string $boundary * @param string $charSet * @param string $contentType * @param string $encoding * * @return string */ protected function getBoundary($boundary, $charSet, $contentType, $encoding) { $result = ''; if ('' == $charSet) { $charSet = $this->CharSet; } if ('' == $contentType) { $contentType = $this->ContentType; } if ('' == $encoding) { $encoding = $this->Encoding; } $result .= $this->textLine('--' . $boundary); $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet); $result .= static::$LE; // RFC1341 part 5 says 7bit is assumed if not specified if (static::ENCODING_7BIT != $encoding) { $result .= $this->headerLine('Content-Transfer-Encoding', $encoding); } $result .= static::$LE; return $result; } /** * Return the end of a message boundary. * * @param string $boundary * * @return string */ protected function endBoundary($boundary) { return static::$LE . '--' . $boundary . '--' . static::$LE; } /** * Set the message type. * PHPMailer only supports some preset message types, not arbitrary MIME structures. */ protected function setMessageType() { $type = []; if ($this->alternativeExists()) { $type[] = 'alt'; } if ($this->inlineImageExists()) { $type[] = 'inline'; } if ($this->attachmentExists()) { $type[] = 'attach'; } $this->message_type = implode('_', $type); if ('' == $this->message_type) { //The 'plain' message_type refers to the message having a single body element, not that it is plain-text $this->message_type = 'plain'; } } /** * Format a header line. * * @param string $name * @param string|int $value * * @return string */ public function headerLine($name, $value) { return $name . ': ' . $value . static::$LE; } /** * Return a formatted mail line. * * @param string $value * * @return string */ public function textLine($value) { return $value . static::$LE; } /** * Add an attachment from a path on the filesystem. * Never use a user-supplied path to a file! * Returns false if the file could not be found or read. * Explicitly *does not* support passing URLs; PHPMailer is not an HTTP client. * If you need to do that, fetch the resource yourself and pass it in via a local file or string. * * @param string $path Path to the attachment * @param string $name Overrides the attachment name * @param string $encoding File encoding (see $Encoding) * @param string $type File extension (MIME) type * @param string $disposition Disposition to use * * @throws Exception * * @return bool */ public function addAttachment($path, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'attachment') { try { if (!static::isPermittedPath($path) || !@is_file($path)) { throw new Exception($this->lang('file_access') . $path, self::STOP_CONTINUE); } // If a MIME type is not specified, try to work it out from the file name if ('' == $type) { $type = static::filenameToType($path); } $filename = basename($path); if ('' == $name) { $name = $filename; } $this->attachment[] = [ 0 => $path, 1 => $filename, 2 => $name, 3 => $encoding, 4 => $type, 5 => false, // isStringAttachment 6 => $disposition, 7 => $name, ]; } catch (Exception $exc) { $this->setError($exc->getMessage()); $this->edebug($exc->getMessage()); if ($this->exceptions) { throw $exc; } return false; } return true; } /** * Return the array of attachments. * * @return array */ public function getAttachments() { return $this->attachment; } /** * Attach all file, string, and binary attachments to the message. * Returns an empty string on failure. * * @param string $disposition_type * @param string $boundary * * @return string */ protected function attachAll($disposition_type, $boundary) { // Return text of body $mime = []; $cidUniq = []; $incl = []; // Add all attachments foreach ($this->attachment as $attachment) { // Check if it is a valid disposition_filter if ($attachment[6] == $disposition_type) { // Check for string attachment $string = ''; $path = ''; $bString = $attachment[5]; if ($bString) { $string = $attachment[0]; } else { $path = $attachment[0]; } $inclhash = hash('sha256', serialize($attachment)); if (in_array($inclhash, $incl)) { continue; } $incl[] = $inclhash; $name = $attachment[2]; $encoding = $attachment[3]; $type = $attachment[4]; $disposition = $attachment[6]; $cid = $attachment[7]; if ('inline' == $disposition and array_key_exists($cid, $cidUniq)) { continue; } $cidUniq[$cid] = true; $mime[] = sprintf('--%s%s', $boundary, static::$LE); //Only include a filename property if we have one if (!empty($name)) { $mime[] = sprintf( 'Content-Type: %s; name="%s"%s', $type, $this->encodeHeader($this->secureHeader($name)), static::$LE ); } else { $mime[] = sprintf( 'Content-Type: %s%s', $type, static::$LE ); } // RFC1341 part 5 says 7bit is assumed if not specified if (static::ENCODING_7BIT != $encoding) { $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, static::$LE); } if (!empty($cid)) { $mime[] = sprintf('Content-ID: <%s>%s', $cid, static::$LE); } // If a filename contains any of these chars, it should be quoted, // but not otherwise: RFC2183 & RFC2045 5.1 // Fixes a warning in IETF's msglint MIME checker // Allow for bypassing the Content-Disposition header totally if (!(empty($disposition))) { $encoded_name = $this->encodeHeader($this->secureHeader($name)); if (preg_match('/[ \(\)<>@,;:\\"\/\[\]\?=]/', $encoded_name)) { $mime[] = sprintf( 'Content-Disposition: %s; filename="%s"%s', $disposition, $encoded_name, static::$LE . static::$LE ); } else { if (!empty($encoded_name)) { $mime[] = sprintf( 'Content-Disposition: %s; filename=%s%s', $disposition, $encoded_name, static::$LE . static::$LE ); } else { $mime[] = sprintf( 'Content-Disposition: %s%s', $disposition, static::$LE . static::$LE ); } } } else { $mime[] = static::$LE; } // Encode as string attachment if ($bString) { $mime[] = $this->encodeString($string, $encoding); } else { $mime[] = $this->encodeFile($path, $encoding); } if ($this->isError()) { return ''; } $mime[] = static::$LE; } } $mime[] = sprintf('--%s--%s', $boundary, static::$LE); return implode('', $mime); } /** * Encode a file attachment in requested format. * Returns an empty string on failure. * * @param string $path The full path to the file * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' * * @throws Exception * * @return string */ protected function encodeFile($path, $encoding = self::ENCODING_BASE64) { try { if (!static::isPermittedPath($path) || !file_exists($path)) { throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE); } $file_buffer = file_get_contents($path); if (false === $file_buffer) { throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE); } $file_buffer = $this->encodeString($file_buffer, $encoding); return $file_buffer; } catch (Exception $exc) { $this->setError($exc->getMessage()); return ''; } } /** * Encode a string in requested format. * Returns an empty string on failure. * * @param string $str The text to encode * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable' * * @return string */ public function encodeString($str, $encoding = self::ENCODING_BASE64) { $encoded = ''; switch (strtolower($encoding)) { case static::ENCODING_BASE64: $encoded = chunk_split( base64_encode($str), static::STD_LINE_LENGTH, static::$LE ); break; case static::ENCODING_7BIT: case static::ENCODING_8BIT: $encoded = static::normalizeBreaks($str); // Make sure it ends with a line break if (substr($encoded, -(strlen(static::$LE))) != static::$LE) { $encoded .= static::$LE; } break; case static::ENCODING_BINARY: $encoded = $str; break; case static::ENCODING_QUOTED_PRINTABLE: $encoded = $this->encodeQP($str); break; default: $this->setError($this->lang('encoding') . $encoding); break; } return $encoded; } /** * Encode a header value (not including its label) optimally. * Picks shortest of Q, B, or none. Result includes folding if needed. * See RFC822 definitions for phrase, comment and text positions. * * @param string $str The header value to encode * @param string $position What context the string will be used in * * @return string */ public function encodeHeader($str, $position = 'text') { $matchcount = 0; switch (strtolower($position)) { case 'phrase': if (!preg_match('/[\200-\377]/', $str)) { // Can't use addslashes as we don't know the value of magic_quotes_sybase $encoded = addcslashes($str, "\0..\37\177\\\""); if (($str == $encoded) and !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) { return $encoded; } return "\"$encoded\""; } $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches); break; /* @noinspection PhpMissingBreakStatementInspection */ case 'comment': $matchcount = preg_match_all('/[()"]/', $str, $matches); //fallthrough case 'text': default: $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches); break; } //RFCs specify a maximum line length of 78 chars, however mail() will sometimes //corrupt messages with headers longer than 65 chars. See #818 $lengthsub = 'mail' == $this->Mailer ? 13 : 0; $maxlen = static::STD_LINE_LENGTH - $lengthsub; // Try to select the encoding which should produce the shortest output if ($matchcount > strlen($str) / 3) { // More than a third of the content will need encoding, so B encoding will be most efficient $encoding = 'B'; //This calculation is: // max line length // - shorten to avoid mail() corruption // - Q/B encoding char overhead ("` =??[QB]??=`") // - charset name length $maxlen = static::STD_LINE_LENGTH - $lengthsub - 8 - strlen($this->CharSet); if ($this->hasMultiBytes($str)) { // Use a custom function which correctly encodes and wraps long // multibyte strings without breaking lines within a character $encoded = $this->base64EncodeWrapMB($str, "\n"); } else { $encoded = base64_encode($str); $maxlen -= $maxlen % 4; $encoded = trim(chunk_split($encoded, $maxlen, "\n")); } $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded); } elseif ($matchcount > 0) { //1 or more chars need encoding, use Q-encode $encoding = 'Q'; //Recalc max line length for Q encoding - see comments on B encode $maxlen = static::STD_LINE_LENGTH - $lengthsub - 8 - strlen($this->CharSet); $encoded = $this->encodeQ($str, $position); $encoded = $this->wrapText($encoded, $maxlen, true); $encoded = str_replace('=' . static::$LE, "\n", trim($encoded)); $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded); } elseif (strlen($str) > $maxlen) { //No chars need encoding, but line is too long, so fold it $encoded = trim($this->wrapText($str, $maxlen, false)); if ($str == $encoded) { //Wrapping nicely didn't work, wrap hard instead $encoded = trim(chunk_split($str, static::STD_LINE_LENGTH, static::$LE)); } $encoded = str_replace(static::$LE, "\n", trim($encoded)); $encoded = preg_replace('/^(.*)$/m', ' \\1', $encoded); } else { //No reformatting needed return $str; } return trim(static::normalizeBreaks($encoded)); } /** * Check if a string contains multi-byte characters. * * @param string $str multi-byte text to wrap encode * * @return bool */ public function hasMultiBytes($str) { if (function_exists('mb_strlen')) { return strlen($str) > mb_strlen($str, $this->CharSet); } // Assume no multibytes (we can't handle without mbstring functions anyway) return false; } /** * Does a string contain any 8-bit chars (in any charset)? * * @param string $text * * @return bool */ public function has8bitChars($text) { return (bool) preg_match('/[\x80-\xFF]/', $text); } /** * Encode and wrap long multibyte strings for mail headers * without breaking lines within a character. * Adapted from a function by paravoid. * * @see http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283 * * @param string $str multi-byte text to wrap encode * @param string $linebreak string to use as linefeed/end-of-line * * @return string */ public function base64EncodeWrapMB($str, $linebreak = null) { $start = '=?' . $this->CharSet . '?B?'; $end = '?='; $encoded = ''; if (null === $linebreak) { $linebreak = static::$LE; } $mb_length = mb_strlen($str, $this->CharSet); // Each line must have length <= 75, including $start and $end $length = 75 - strlen($start) - strlen($end); // Average multi-byte ratio $ratio = $mb_length / strlen($str); // Base64 has a 4:3 ratio $avgLength = floor($length * $ratio * .75); for ($i = 0; $i < $mb_length; $i += $offset) { $lookBack = 0; do { $offset = $avgLength - $lookBack; $chunk = mb_substr($str, $i, $offset, $this->CharSet); $chunk = base64_encode($chunk); ++$lookBack; } while (strlen($chunk) > $length); $encoded .= $chunk . $linebreak; } // Chomp the last linefeed return substr($encoded, 0, -strlen($linebreak)); } /** * Encode a string in quoted-printable format. * According to RFC2045 section 6.7. * * @param string $string The text to encode * * @return string */ public function encodeQP($string) { return static::normalizeBreaks(quoted_printable_encode($string)); } /** * Encode a string using Q encoding. * * @see http://tools.ietf.org/html/rfc2047#section-4.2 * * @param string $str the text to encode * @param string $position Where the text is going to be used, see the RFC for what that means * * @return string */ public function encodeQ($str, $position = 'text') { // There should not be any EOL in the string $pattern = ''; $encoded = str_replace(["\r", "\n"], '', $str); switch (strtolower($position)) { case 'phrase': // RFC 2047 section 5.3 $pattern = '^A-Za-z0-9!*+\/ -'; break; /* * RFC 2047 section 5.2. * Build $pattern without including delimiters and [] */ /* @noinspection PhpMissingBreakStatementInspection */ case 'comment': $pattern = '\(\)"'; /* Intentional fall through */ case 'text': default: // RFC 2047 section 5.1 // Replace every high ascii, control, =, ? and _ characters /** @noinspection SuspiciousAssignmentsInspection */ $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern; break; } $matches = []; if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) { // If the string contains an '=', make sure it's the first thing we replace // so as to avoid double-encoding $eqkey = array_search('=', $matches[0]); if (false !== $eqkey) { unset($matches[0][$eqkey]); array_unshift($matches[0], '='); } foreach (array_unique($matches[0]) as $char) { $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded); } } // Replace spaces with _ (more readable than =20) // RFC 2047 section 4.2(2) return str_replace(' ', '_', $encoded); } /** * Add a string or binary attachment (non-filesystem). * This method can be used to attach ascii or binary data, * such as a BLOB record from a database. * * @param string $string String attachment data * @param string $filename Name of the attachment * @param string $encoding File encoding (see $Encoding) * @param string $type File extension (MIME) type * @param string $disposition Disposition to use */ public function addStringAttachment( $string, $filename, $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'attachment' ) { // If a MIME type is not specified, try to work it out from the file name if ('' == $type) { $type = static::filenameToType($filename); } // Append to $attachment array $this->attachment[] = [ 0 => $string, 1 => $filename, 2 => basename($filename), 3 => $encoding, 4 => $type, 5 => true, // isStringAttachment 6 => $disposition, 7 => 0, ]; } /** * Add an embedded (inline) attachment from a file. * This can include images, sounds, and just about any other document type. * These differ from 'regular' attachments in that they are intended to be * displayed inline with the message, not just attached for download. * This is used in HTML messages that embed the images * the HTML refers to using the $cid value. * Never use a user-supplied path to a file! * * @param string $path Path to the attachment * @param string $cid Content ID of the attachment; Use this to reference * the content when using an embedded image in HTML * @param string $name Overrides the attachment name * @param string $encoding File encoding (see $Encoding) * @param string $type File MIME type * @param string $disposition Disposition to use * * @return bool True on successfully adding an attachment */ public function addEmbeddedImage($path, $cid, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'inline') { if (!static::isPermittedPath($path) || !@is_file($path)) { $this->setError($this->lang('file_access') . $path); return false; } // If a MIME type is not specified, try to work it out from the file name if ('' == $type) { $type = static::filenameToType($path); } $filename = basename($path); if ('' == $name) { $name = $filename; } // Append to $attachment array $this->attachment[] = [ 0 => $path, 1 => $filename, 2 => $name, 3 => $encoding, 4 => $type, 5 => false, // isStringAttachment 6 => $disposition, 7 => $cid, ]; return true; } /** * Add an embedded stringified attachment. * This can include images, sounds, and just about any other document type. * If your filename doesn't contain an extension, be sure to set the $type to an appropriate MIME type. * * @param string $string The attachment binary data * @param string $cid Content ID of the attachment; Use this to reference * the content when using an embedded image in HTML * @param string $name A filename for the attachment. If this contains an extension, * PHPMailer will attempt to set a MIME type for the attachment. * For example 'file.jpg' would get an 'image/jpeg' MIME type. * @param string $encoding File encoding (see $Encoding), defaults to 'base64' * @param string $type MIME type - will be used in preference to any automatically derived type * @param string $disposition Disposition to use * * @return bool True on successfully adding an attachment */ public function addStringEmbeddedImage( $string, $cid, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'inline' ) { // If a MIME type is not specified, try to work it out from the name if ('' == $type and !empty($name)) { $type = static::filenameToType($name); } // Append to $attachment array $this->attachment[] = [ 0 => $string, 1 => $name, 2 => $name, 3 => $encoding, 4 => $type, 5 => true, // isStringAttachment 6 => $disposition, 7 => $cid, ]; return true; } /** * Check if an embedded attachment is present with this cid. * * @param string $cid * * @return bool */ protected function cidExists($cid) { foreach ($this->attachment as $attachment) { if ('inline' == $attachment[6] and $cid == $attachment[7]) { return true; } } return false; } /** * Check if an inline attachment is present. * * @return bool */ public function inlineImageExists() { foreach ($this->attachment as $attachment) { if ('inline' == $attachment[6]) { return true; } } return false; } /** * Check if an attachment (non-inline) is present. * * @return bool */ public function attachmentExists() { foreach ($this->attachment as $attachment) { if ('attachment' == $attachment[6]) { return true; } } return false; } /** * Check if this message has an alternative body set. * * @return bool */ public function alternativeExists() { return !empty($this->AltBody); } /** * Clear queued addresses of given kind. * * @param string $kind 'to', 'cc', or 'bcc' */ public function clearQueuedAddresses($kind) { $this->RecipientsQueue = array_filter( $this->RecipientsQueue, function ($params) use ($kind) { return $params[0] != $kind; } ); } /** * Clear all To recipients. */ public function clearAddresses() { foreach ($this->to as $to) { unset($this->all_recipients[strtolower($to[0])]); } $this->to = []; $this->clearQueuedAddresses('to'); } /** * Clear all CC recipients. */ public function clearCCs() { foreach ($this->cc as $cc) { unset($this->all_recipients[strtolower($cc[0])]); } $this->cc = []; $this->clearQueuedAddresses('cc'); } /** * Clear all BCC recipients. */ public function clearBCCs() { foreach ($this->bcc as $bcc) { unset($this->all_recipients[strtolower($bcc[0])]); } $this->bcc = []; $this->clearQueuedAddresses('bcc'); } /** * Clear all ReplyTo recipients. */ public function clearReplyTos() { $this->ReplyTo = []; $this->ReplyToQueue = []; } /** * Clear all recipient types. */ public function clearAllRecipients() { $this->to = []; $this->cc = []; $this->bcc = []; $this->all_recipients = []; $this->RecipientsQueue = []; } /** * Clear all filesystem, string, and binary attachments. */ public function clearAttachments() { $this->attachment = []; } /** * Clear all custom headers. */ public function clearCustomHeaders() { $this->CustomHeader = []; } /** * Add an error message to the error container. * * @param string $msg */ protected function setError($msg) { ++$this->error_count; if ('smtp' == $this->Mailer and null !== $this->smtp) { $lasterror = $this->smtp->getError(); if (!empty($lasterror['error'])) { $msg .= $this->lang('smtp_error') . $lasterror['error']; if (!empty($lasterror['detail'])) { $msg .= ' Detail: ' . $lasterror['detail']; } if (!empty($lasterror['smtp_code'])) { $msg .= ' SMTP code: ' . $lasterror['smtp_code']; } if (!empty($lasterror['smtp_code_ex'])) { $msg .= ' Additional SMTP info: ' . $lasterror['smtp_code_ex']; } } } $this->ErrorInfo = $msg; } /** * Return an RFC 822 formatted date. * * @return string */ public static function rfcDate() { // Set the time zone to whatever the default is to avoid 500 errors // Will default to UTC if it's not set properly in php.ini date_default_timezone_set(@date_default_timezone_get()); return date('D, j M Y H:i:s O'); } /** * Get the server hostname. * Returns 'localhost.localdomain' if unknown. * * @return string */ protected function serverHostname() { $result = ''; if (!empty($this->Hostname)) { $result = $this->Hostname; } elseif (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER)) { $result = $_SERVER['SERVER_NAME']; } elseif (function_exists('gethostname') and gethostname() !== false) { $result = gethostname(); } elseif (php_uname('n') !== false) { $result = php_uname('n'); } if (!static::isValidHost($result)) { return 'localhost.localdomain'; } return $result; } /** * Validate whether a string contains a valid value to use as a hostname or IP address. * IPv6 addresses must include [], e.g. `[::1]`, not just `::1`. * * @param string $host The host name or IP address to check * * @return bool */ public static function isValidHost($host) { //Simple syntax limits if (empty($host) or !is_string($host) or strlen($host) > 256 ) { return false; } //Looks like a bracketed IPv6 address if (trim($host, '[]') != $host) { return (bool) filter_var(trim($host, '[]'), FILTER_VALIDATE_IP, FILTER_FLAG_IPV6); } //If removing all the dots results in a numeric string, it must be an IPv4 address. //Need to check this first because otherwise things like `999.0.0.0` are considered valid host names if (is_numeric(str_replace('.', '', $host))) { //Is it a valid IPv4 address? return (bool) filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4); } if (filter_var('http://' . $host, FILTER_VALIDATE_URL)) { //Is it a syntactically valid hostname? return true; } return false; } /** * Get an error message in the current language. * * @param string $key * * @return string */ protected function lang($key) { if (count($this->language) < 1) { $this->setLanguage('en'); // set the default language } if (array_key_exists($key, $this->language)) { if ('smtp_connect_failed' == $key) { //Include a link to troubleshooting docs on SMTP connection failure //this is by far the biggest cause of support questions //but it's usually not PHPMailer's fault. return $this->language[$key]; } return $this->language[$key]; } //Return the key as a fallback return $key; } /** * Check if an error occurred. * * @return bool True if an error did occur */ public function isError() { return $this->error_count > 0; } /** * Add a custom header. * $name value can be overloaded to contain * both header name and value (name:value). * * @param string $name Custom header name * @param string|null $value Header value */ public function addCustomHeader($name, $value = null) { if (null === $value) { // Value passed in as name:value $this->CustomHeader[] = explode(':', $name, 2); } else { $this->CustomHeader[] = [$name, $value]; } } /** * Returns all custom headers. * * @return array */ public function getCustomHeaders() { return $this->CustomHeader; } /** * Create a message body from an HTML string. * Automatically inlines images and creates a plain-text version by converting the HTML, * overwriting any existing values in Body and AltBody. * Do not source $message content from user input! * $basedir is prepended when handling relative URLs, e.g. and must not be empty * will look for an image file in $basedir/images/a.png and convert it to inline. * If you don't provide a $basedir, relative paths will be left untouched (and thus probably break in email) * Converts data-uri images into embedded attachments. * If you don't want to apply these transformations to your HTML, just set Body and AltBody directly. * * @param string $message HTML message string * @param string $basedir Absolute path to a base directory to prepend to relative paths to images * @param bool|callable $advanced Whether to use the internal HTML to text converter * or your own custom converter @see PHPMailer::html2text() * * @return string $message The transformed message Body */ public function msgHTML($message, $basedir = '', $advanced = false) { preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images); if (array_key_exists(2, $images)) { if (strlen($basedir) > 1 && '/' != substr($basedir, -1)) { // Ensure $basedir has a trailing / $basedir .= '/'; } foreach ($images[2] as $imgindex => $url) { // Convert data URIs into embedded images //e.g. "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" if (preg_match('#^data:(image/(?:jpe?g|gif|png));?(base64)?,(.+)#', $url, $match)) { if (count($match) == 4 and static::ENCODING_BASE64 == $match[2]) { $data = base64_decode($match[3]); } elseif ('' == $match[2]) { $data = rawurldecode($match[3]); } else { //Not recognised so leave it alone continue; } //Hash the decoded data, not the URL so that the same data-URI image used in multiple places //will only be embedded once, even if it used a different encoding $cid = hash('sha256', $data) . '@phpmailer.0'; // RFC2392 S 2 if (!$this->cidExists($cid)) { $this->addStringEmbeddedImage($data, $cid, 'embed' . $imgindex, static::ENCODING_BASE64, $match[1]); } $message = str_replace( $images[0][$imgindex], $images[1][$imgindex] . '="cid:' . $cid . '"', $message ); continue; } if (// Only process relative URLs if a basedir is provided (i.e. no absolute local paths) !empty($basedir) // Ignore URLs containing parent dir traversal (..) and (strpos($url, '..') === false) // Do not change urls that are already inline images and 0 !== strpos($url, 'cid:') // Do not change absolute URLs, including anonymous protocol and !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url) ) { $filename = basename($url); $directory = dirname($url); if ('.' == $directory) { $directory = ''; } $cid = hash('sha256', $url) . '@phpmailer.0'; // RFC2392 S 2 if (strlen($basedir) > 1 and '/' != substr($basedir, -1)) { $basedir .= '/'; } if (strlen($directory) > 1 and '/' != substr($directory, -1)) { $directory .= '/'; } if ($this->addEmbeddedImage( $basedir . $directory . $filename, $cid, $filename, static::ENCODING_BASE64, static::_mime_types((string) static::mb_pathinfo($filename, PATHINFO_EXTENSION)) ) ) { $message = preg_replace( '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui', $images[1][$imgindex] . '="cid:' . $cid . '"', $message ); } } } } $this->isHTML(true); // Convert all message body line breaks to LE, makes quoted-printable encoding work much better $this->Body = static::normalizeBreaks($message); $this->AltBody = static::normalizeBreaks($this->html2text($message, $advanced)); if (!$this->alternativeExists()) { $this->AltBody = 'This is an HTML-only message. To view it, activate HTML in your email application.' . static::$LE; } return $this->Body; } /** * Convert an HTML string into plain text. * This is used by msgHTML(). * Note - older versions of this function used a bundled advanced converter * which was removed for license reasons in #232. * Example usage: * * ```php * // Use default conversion * $plain = $mail->html2text($html); * // Use your own custom converter * $plain = $mail->html2text($html, function($html) { * $converter = new MyHtml2text($html); * return $converter->get_text(); * }); * ``` * * @param string $html The HTML text to convert * @param bool|callable $advanced Any boolean value to use the internal converter, * or provide your own callable for custom conversion * * @return string */ public function html2text($html, $advanced = false) { if (is_callable($advanced)) { return call_user_func($advanced, $html); } return html_entity_decode( trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))), ENT_QUOTES, $this->CharSet ); } /** * Get the MIME type for a file extension. * * @param string $ext File extension * * @return string MIME type of file */ public static function _mime_types($ext = '') { $mimes = [ 'xl' => 'application/excel', 'js' => 'application/javascript', 'hqx' => 'application/mac-binhex40', 'cpt' => 'application/mac-compactpro', 'bin' => 'application/macbinary', 'doc' => 'application/msword', 'word' => 'application/msword', 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template', 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template', 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow', 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', 'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide', 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template', 'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12', 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12', 'class' => 'application/octet-stream', 'dll' => 'application/octet-stream', 'dms' => 'application/octet-stream', 'exe' => 'application/octet-stream', 'lha' => 'application/octet-stream', 'lzh' => 'application/octet-stream', 'psd' => 'application/octet-stream', 'sea' => 'application/octet-stream', 'so' => 'application/octet-stream', 'oda' => 'application/oda', 'pdf' => 'application/pdf', 'ai' => 'application/postscript', 'eps' => 'application/postscript', 'ps' => 'application/postscript', 'smi' => 'application/smil', 'smil' => 'application/smil', 'mif' => 'application/vnd.mif', 'xls' => 'application/vnd.ms-excel', 'ppt' => 'application/vnd.ms-powerpoint', 'wbxml' => 'application/vnd.wap.wbxml', 'wmlc' => 'application/vnd.wap.wmlc', 'dcr' => 'application/x-director', 'dir' => 'application/x-director', 'dxr' => 'application/x-director', 'dvi' => 'application/x-dvi', 'gtar' => 'application/x-gtar', 'php3' => 'application/x-httpd-php', 'php4' => 'application/x-httpd-php', 'php' => 'application/x-httpd-php', 'phtml' => 'application/x-httpd-php', 'phps' => 'application/x-httpd-php-source', 'swf' => 'application/x-shockwave-flash', 'sit' => 'application/x-stuffit', 'tar' => 'application/x-tar', 'tgz' => 'application/x-tar', 'xht' => 'application/xhtml+xml', 'xhtml' => 'application/xhtml+xml', 'zip' => 'application/zip', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'mp2' => 'audio/mpeg', 'mp3' => 'audio/mpeg', 'm4a' => 'audio/mp4', 'mpga' => 'audio/mpeg', 'aif' => 'audio/x-aiff', 'aifc' => 'audio/x-aiff', 'aiff' => 'audio/x-aiff', 'ram' => 'audio/x-pn-realaudio', 'rm' => 'audio/x-pn-realaudio', 'rpm' => 'audio/x-pn-realaudio-plugin', 'ra' => 'audio/x-realaudio', 'wav' => 'audio/x-wav', 'mka' => 'audio/x-matroska', 'bmp' => 'image/bmp', 'gif' => 'image/gif', 'jpeg' => 'image/jpeg', 'jpe' => 'image/jpeg', 'jpg' => 'image/jpeg', 'png' => 'image/png', 'tiff' => 'image/tiff', 'tif' => 'image/tiff', 'webp' => 'image/webp', 'heif' => 'image/heif', 'heifs' => 'image/heif-sequence', 'heic' => 'image/heic', 'heics' => 'image/heic-sequence', 'eml' => 'message/rfc822', 'css' => 'text/css', 'html' => 'text/html', 'htm' => 'text/html', 'shtml' => 'text/html', 'log' => 'text/plain', 'text' => 'text/plain', 'txt' => 'text/plain', 'rtx' => 'text/richtext', 'rtf' => 'text/rtf', 'vcf' => 'text/vcard', 'vcard' => 'text/vcard', 'ics' => 'text/calendar', 'xml' => 'text/xml', 'xsl' => 'text/xml', 'wmv' => 'video/x-ms-wmv', 'mpeg' => 'video/mpeg', 'mpe' => 'video/mpeg', 'mpg' => 'video/mpeg', 'mp4' => 'video/mp4', 'm4v' => 'video/mp4', 'mov' => 'video/quicktime', 'qt' => 'video/quicktime', 'rv' => 'video/vnd.rn-realvideo', 'avi' => 'video/x-msvideo', 'movie' => 'video/x-sgi-movie', 'webm' => 'video/webm', 'mkv' => 'video/x-matroska', ]; $ext = strtolower($ext); if (array_key_exists($ext, $mimes)) { return $mimes[$ext]; } return 'application/octet-stream'; } /** * Map a file name to a MIME type. * Defaults to 'application/octet-stream', i.e.. arbitrary binary data. * * @param string $filename A file name or full path, does not need to exist as a file * * @return string */ public static function filenameToType($filename) { // In case the path is a URL, strip any query string before getting extension $qpos = strpos($filename, '?'); if (false !== $qpos) { $filename = substr($filename, 0, $qpos); } $ext = static::mb_pathinfo($filename, PATHINFO_EXTENSION); return static::_mime_types($ext); } /** * Multi-byte-safe pathinfo replacement. * Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe. * * @see http://www.php.net/manual/en/function.pathinfo.php#107461 * * @param string $path A filename or path, does not need to exist as a file * @param int|string $options Either a PATHINFO_* constant, * or a string name to return only the specified piece * * @return string|array */ public static function mb_pathinfo($path, $options = null) { $ret = ['dirname' => '', 'basename' => '', 'extension' => '', 'filename' => '']; $pathinfo = []; if (preg_match('#^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$#im', $path, $pathinfo)) { if (array_key_exists(1, $pathinfo)) { $ret['dirname'] = $pathinfo[1]; } if (array_key_exists(2, $pathinfo)) { $ret['basename'] = $pathinfo[2]; } if (array_key_exists(5, $pathinfo)) { $ret['extension'] = $pathinfo[5]; } if (array_key_exists(3, $pathinfo)) { $ret['filename'] = $pathinfo[3]; } } switch ($options) { case PATHINFO_DIRNAME: case 'dirname': return $ret['dirname']; case PATHINFO_BASENAME: case 'basename': return $ret['basename']; case PATHINFO_EXTENSION: case 'extension': return $ret['extension']; case PATHINFO_FILENAME: case 'filename': return $ret['filename']; default: return $ret; } } /** * Set or reset instance properties. * You should avoid this function - it's more verbose, less efficient, more error-prone and * harder to debug than setting properties directly. * Usage Example: * `$mail->set('SMTPSecure', 'tls');` * is the same as: * `$mail->SMTPSecure = 'tls';`. * * @param string $name The property name to set * @param mixed $value The value to set the property to * * @return bool */ public function set($name, $value = '') { if (property_exists($this, $name)) { $this->$name = $value; return true; } $this->setError($this->lang('variable_set') . $name); return false; } /** * Strip newlines to prevent header injection. * * @param string $str * * @return string */ public function secureHeader($str) { return trim(str_replace(["\r", "\n"], '', $str)); } /** * Normalize line breaks in a string. * Converts UNIX LF, Mac CR and Windows CRLF line breaks into a single line break format. * Defaults to CRLF (for message bodies) and preserves consecutive breaks. * * @param string $text * @param string $breaktype What kind of line break to use; defaults to static::$LE * * @return string */ public static function normalizeBreaks($text, $breaktype = null) { if (null === $breaktype) { $breaktype = static::$LE; } // Normalise to \n $text = str_replace(["\r\n", "\r"], "\n", $text); // Now convert LE as needed if ("\n" !== $breaktype) { $text = str_replace("\n", $breaktype, $text); } return $text; } /** * Return the current line break format string. * * @return string */ public static function getLE() { return static::$LE; } /** * Set the line break format string, e.g. "\r\n". * * @param string $le */ protected static function setLE($le) { static::$LE = $le; } /** * Set the public and private key files and password for S/MIME signing. * * @param string $cert_filename * @param string $key_filename * @param string $key_pass Password for private key * @param string $extracerts_filename Optional path to chain certificate */ public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '') { $this->sign_cert_file = $cert_filename; $this->sign_key_file = $key_filename; $this->sign_key_pass = $key_pass; $this->sign_extracerts_file = $extracerts_filename; } /** * Quoted-Printable-encode a DKIM header. * * @param string $txt * * @return string */ public function DKIM_QP($txt) { $line = ''; $len = strlen($txt); for ($i = 0; $i < $len; ++$i) { $ord = ord($txt[$i]); if (((0x21 <= $ord) and ($ord <= 0x3A)) or $ord == 0x3C or ((0x3E <= $ord) and ($ord <= 0x7E))) { $line .= $txt[$i]; } else { $line .= '=' . sprintf('%02X', $ord); } } return $line; } /** * Generate a DKIM signature. * * @param string $signHeader * * @throws Exception * * @return string The DKIM signature value */ public function DKIM_Sign($signHeader) { if (!defined('PKCS7_TEXT')) { if ($this->exceptions) { throw new Exception($this->lang('extension_missing') . 'openssl'); } return ''; } $privKeyStr = !empty($this->DKIM_private_string) ? $this->DKIM_private_string : file_get_contents($this->DKIM_private); if ('' != $this->DKIM_passphrase) { $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase); } else { $privKey = openssl_pkey_get_private($privKeyStr); } if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) { openssl_pkey_free($privKey); return base64_encode($signature); } openssl_pkey_free($privKey); return ''; } /** * Generate a DKIM canonicalization header. * Uses the 'relaxed' algorithm from RFC6376 section 3.4.2. * Canonicalized headers should *always* use CRLF, regardless of mailer setting. * * @see https://tools.ietf.org/html/rfc6376#section-3.4.2 * * @param string $signHeader Header * * @return string */ public function DKIM_HeaderC($signHeader) { //Unfold all header continuation lines //Also collapses folded whitespace. //Note PCRE \s is too broad a definition of whitespace; RFC5322 defines it as `[ \t]` //@see https://tools.ietf.org/html/rfc5322#section-2.2 //That means this may break if you do something daft like put vertical tabs in your headers. $signHeader = preg_replace('/\r\n[ \t]+/', ' ', $signHeader); $lines = explode("\r\n", $signHeader); foreach ($lines as $key => $line) { //If the header is missing a :, skip it as it's invalid //This is likely to happen because the explode() above will also split //on the trailing LE, leaving an empty line if (strpos($line, ':') === false) { continue; } list($heading, $value) = explode(':', $line, 2); //Lower-case header name $heading = strtolower($heading); //Collapse white space within the value $value = preg_replace('/[ \t]{2,}/', ' ', $value); //RFC6376 is slightly unclear here - it says to delete space at the *end* of each value //But then says to delete space before and after the colon. //Net result is the same as trimming both ends of the value. //by elimination, the same applies to the field name $lines[$key] = trim($heading, " \t") . ':' . trim($value, " \t"); } return implode("\r\n", $lines); } /** * Generate a DKIM canonicalization body. * Uses the 'simple' algorithm from RFC6376 section 3.4.3. * Canonicalized bodies should *always* use CRLF, regardless of mailer setting. * * @see https://tools.ietf.org/html/rfc6376#section-3.4.3 * * @param string $body Message Body * * @return string */ public function DKIM_BodyC($body) { if (empty($body)) { return "\r\n"; } // Normalize line endings to CRLF $body = static::normalizeBreaks($body, "\r\n"); //Reduce multiple trailing line breaks to a single one return rtrim($body, "\r\n") . "\r\n"; } /** * Create the DKIM header and body in a new message header. * * @param string $headers_line Header lines * @param string $subject Subject * @param string $body Body * * @return string */ public function DKIM_Add($headers_line, $subject, $body) { $DKIMsignatureType = 'rsa-sha256'; // Signature & hash algorithms $DKIMcanonicalization = 'relaxed/simple'; // Canonicalization of header/body $DKIMquery = 'dns/txt'; // Query method $DKIMtime = time(); // Signature Timestamp = seconds since 00:00:00 - Jan 1, 1970 (UTC time zone) $subject_header = "Subject: $subject"; $headers = explode(static::$LE, $headers_line); $from_header = ''; $to_header = ''; $date_header = ''; $current = ''; $copiedHeaderFields = ''; $foundExtraHeaders = []; $extraHeaderKeys = ''; $extraHeaderValues = ''; $extraCopyHeaderFields = ''; foreach ($headers as $header) { if (strpos($header, 'From:') === 0) { $from_header = $header; $current = 'from_header'; } elseif (strpos($header, 'To:') === 0) { $to_header = $header; $current = 'to_header'; } elseif (strpos($header, 'Date:') === 0) { $date_header = $header; $current = 'date_header'; } elseif (!empty($this->DKIM_extraHeaders)) { foreach ($this->DKIM_extraHeaders as $extraHeader) { if (strpos($header, $extraHeader . ':') === 0) { $headerValue = $header; foreach ($this->CustomHeader as $customHeader) { if ($customHeader[0] === $extraHeader) { $headerValue = trim($customHeader[0]) . ': ' . $this->encodeHeader(trim($customHeader[1])); break; } } $foundExtraHeaders[$extraHeader] = $headerValue; $current = ''; break; } } } else { if (!empty($$current) and strpos($header, ' =?') === 0) { $$current .= $header; } else { $current = ''; } } } foreach ($foundExtraHeaders as $key => $value) { $extraHeaderKeys .= ':' . $key; $extraHeaderValues .= $value . "\r\n"; if ($this->DKIM_copyHeaderFields) { $extraCopyHeaderFields .= "\t|" . str_replace('|', '=7C', $this->DKIM_QP($value)) . ";\r\n"; } } if ($this->DKIM_copyHeaderFields) { $from = str_replace('|', '=7C', $this->DKIM_QP($from_header)); $to = str_replace('|', '=7C', $this->DKIM_QP($to_header)); $date = str_replace('|', '=7C', $this->DKIM_QP($date_header)); $subject = str_replace('|', '=7C', $this->DKIM_QP($subject_header)); $copiedHeaderFields = "\tz=$from\r\n" . "\t|$to\r\n" . "\t|$date\r\n" . "\t|$subject;\r\n" . $extraCopyHeaderFields; } $body = $this->DKIM_BodyC($body); $DKIMlen = strlen($body); // Length of body $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body))); // Base64 of packed binary SHA-256 hash of body if ('' == $this->DKIM_identity) { $ident = ''; } else { $ident = ' i=' . $this->DKIM_identity . ';'; } $dkimhdrs = 'DKIM-Signature: v=1; a=' . $DKIMsignatureType . '; q=' . $DKIMquery . '; l=' . $DKIMlen . '; s=' . $this->DKIM_selector . ";\r\n" . "\tt=" . $DKIMtime . '; c=' . $DKIMcanonicalization . ";\r\n" . "\th=From:To:Date:Subject" . $extraHeaderKeys . ";\r\n" . "\td=" . $this->DKIM_domain . ';' . $ident . "\r\n" . $copiedHeaderFields . "\tbh=" . $DKIMb64 . ";\r\n" . "\tb="; $toSign = $this->DKIM_HeaderC( $from_header . "\r\n" . $to_header . "\r\n" . $date_header . "\r\n" . $subject_header . "\r\n" . $extraHeaderValues . $dkimhdrs ); $signed = $this->DKIM_Sign($toSign); return static::normalizeBreaks($dkimhdrs . $signed) . static::$LE; } /** * Detect if a string contains a line longer than the maximum line length * allowed by RFC 2822 section 2.1.1. * * @param string $str * * @return bool */ public static function hasLineLongerThanMax($str) { return (bool) preg_match('/^(.{' . (self::MAX_LINE_LENGTH + strlen(static::$LE)) . ',})/m', $str); } /** * Allows for public read access to 'to' property. * Before the send() call, queued addresses (i.e. with IDN) are not yet included. * * @return array */ public function getToAddresses() { return $this->to; } /** * Allows for public read access to 'cc' property. * Before the send() call, queued addresses (i.e. with IDN) are not yet included. * * @return array */ public function getCcAddresses() { return $this->cc; } /** * Allows for public read access to 'bcc' property. * Before the send() call, queued addresses (i.e. with IDN) are not yet included. * * @return array */ public function getBccAddresses() { return $this->bcc; } /** * Allows for public read access to 'ReplyTo' property. * Before the send() call, queued addresses (i.e. with IDN) are not yet included. * * @return array */ public function getReplyToAddresses() { return $this->ReplyTo; } /** * Allows for public read access to 'all_recipients' property. * Before the send() call, queued addresses (i.e. with IDN) are not yet included. * * @return array */ public function getAllRecipientAddresses() { return $this->all_recipients; } /** * Perform a callback. * * @param bool $isSent * @param array $to * @param array $cc * @param array $bcc * @param string $subject * @param string $body * @param string $from * @param array $extra */ protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra) { if (!empty($this->action_function) and is_callable($this->action_function)) { call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra); } } /** * Get the OAuth instance. * * @return OAuth */ public function getOAuth() { return $this->oauth; } /** * Set an OAuth instance. * * @param OAuth $oauth */ public function setOAuth(OAuth $oauth) { $this->oauth = $oauth; } } /** * PHPMailer RFC821 SMTP email transport class. * PHP Version 5.5. * * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project * * @author Marcus Bointon (Synchro/coolbru) * @author Jim Jagielski (jimjag) * @author Andy Prevost (codeworxtech) * @author Brent R. Matzelle (original founder) * @copyright 2012 - 2017 Marcus Bointon * @copyright 2010 - 2012 Jim Jagielski * @copyright 2004 - 2009 Andy Prevost * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License * @note This program is distributed in the hope that it will be useful - WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. */ /** * PHPMailer RFC821 SMTP email transport class. * Implements RFC 821 SMTP commands and provides some utility methods for sending mail to an SMTP server. * * @author Chris Ryan * @author Marcus Bointon */ class SMTP { /** * The PHPMailer SMTP version number. * * @var string */ const VERSION = '6.0.7'; /** * SMTP line break constant. * * @var string */ const LE = "\r\n"; /** * The SMTP port to use if one is not specified. * * @var int */ const DEFAULT_PORT = 25; /** * The maximum line length allowed by RFC 2822 section 2.1.1. * * @var int */ const MAX_LINE_LENGTH = 998; /** * Debug level for no output. */ const DEBUG_OFF = 0; /** * Debug level to show client -> server messages. */ const DEBUG_CLIENT = 1; /** * Debug level to show client -> server and server -> client messages. */ const DEBUG_SERVER = 2; /** * Debug level to show connection status, client -> server and server -> client messages. */ const DEBUG_CONNECTION = 3; /** * Debug level to show all messages. */ const DEBUG_LOWLEVEL = 4; /** * Debug output level. * Options: * * self::DEBUG_OFF (`0`) No debug output, default * * self::DEBUG_CLIENT (`1`) Client commands * * self::DEBUG_SERVER (`2`) Client commands and server responses * * self::DEBUG_CONNECTION (`3`) As DEBUG_SERVER plus connection status * * self::DEBUG_LOWLEVEL (`4`) Low-level data output, all messages. * * @var int */ public $do_debug = self::DEBUG_OFF; /** * How to handle debug output. * Options: * * `echo` Output plain-text as-is, appropriate for CLI * * `html` Output escaped, line breaks converted to `
`, appropriate for browser output * * `error_log` Output to error log as configured in php.ini * Alternatively, you can provide a callable expecting two params: a message string and the debug level: * * ```php * $smtp->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";}; * ``` * * Alternatively, you can pass in an instance of a PSR-3 compatible logger, though only `debug` * level output is used: * * ```php * $mail->Debugoutput = new myPsr3Logger; * ``` * * @var string|callable|\Psr\Log\LoggerInterface */ public $Debugoutput = 'echo'; /** * Whether to use VERP. * * @see http://en.wikipedia.org/wiki/Variable_envelope_return_path * @see http://www.postfix.org/VERP_README.html Info on VERP * * @var bool */ public $do_verp = false; /** * The timeout value for connection, in seconds. * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2. * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure. * * @see http://tools.ietf.org/html/rfc2821#section-4.5.3.2 * * @var int */ public $Timeout = 300; /** * How long to wait for commands to complete, in seconds. * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2. * * @var int */ public $Timelimit = 300; /** * Patterns to extract an SMTP transaction id from reply to a DATA command. * The first capture group in each regex will be used as the ID. * MS ESMTP returns the message ID, which may not be correct for internal tracking. * * @var string[] */ protected $smtp_transaction_id_patterns = [ 'exim' => '/[\d]{3} OK id=(.*)/', 'sendmail' => '/[\d]{3} 2.0.0 (.*) Message/', 'postfix' => '/[\d]{3} 2.0.0 Ok: queued as (.*)/', 'Microsoft_ESMTP' => '/[0-9]{3} 2.[\d].0 (.*)@(?:.*) Queued mail for delivery/', 'Amazon_SES' => '/[\d]{3} Ok (.*)/', 'SendGrid' => '/[\d]{3} Ok: queued as (.*)/', 'CampaignMonitor' => '/[\d]{3} 2.0.0 OK:([a-zA-Z\d]{48})/', ]; /** * The last transaction ID issued in response to a DATA command, * if one was detected. * * @var string|bool|null */ protected $last_smtp_transaction_id; /** * The socket for the server connection. * * @var ?resource */ protected $smtp_conn; /** * Error information, if any, for the last SMTP command. * * @var array */ protected $error = [ 'error' => '', 'detail' => '', 'smtp_code' => '', 'smtp_code_ex' => '', ]; /** * The reply the server sent to us for HELO. * If null, no HELO string has yet been received. * * @var string|null */ protected $helo_rply = null; /** * The set of SMTP extensions sent in reply to EHLO command. * Indexes of the array are extension names. * Value at index 'HELO' or 'EHLO' (according to command that was sent) * represents the server name. In case of HELO it is the only element of the array. * Other values can be boolean TRUE or an array containing extension options. * If null, no HELO/EHLO string has yet been received. * * @var array|null */ protected $server_caps = null; /** * The most recent reply received from the server. * * @var string */ protected $last_reply = ''; /** * Output debugging info via a user-selected method. * * @param string $str Debug string to output * @param int $level The debug level of this message; see DEBUG_* constants * * @see SMTP::$Debugoutput * @see SMTP::$do_debug */ protected function edebug($str, $level = 0) { if ($level > $this->do_debug) { return; } //Is this a PSR-3 logger? if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) { $this->Debugoutput->debug($str); return; } //Avoid clash with built-in function names if (!in_array($this->Debugoutput, ['error_log', 'html', 'echo']) and is_callable($this->Debugoutput)) { call_user_func($this->Debugoutput, $str, $level); return; } switch ($this->Debugoutput) { case 'error_log': //Don't output, just log error_log($str); break; case 'html': //Cleans up output a bit for a better looking, HTML-safe output echo gmdate('Y-m-d H:i:s'), ' ', htmlentities( preg_replace('/[\r\n]+/', '', $str), ENT_QUOTES, 'UTF-8' ), "
\n"; break; case 'echo': default: //Normalize line breaks $str = preg_replace('/\r\n|\r/ms', "\n", $str); echo gmdate('Y-m-d H:i:s'), "\t", //Trim trailing space trim( //Indent for readability, except for trailing break str_replace( "\n", "\n \t ", trim($str) ) ), "\n"; } } /** * Connect to an SMTP server. * * @param string $host SMTP server IP or host name * @param int $port The port number to connect to * @param int $timeout How long to wait for the connection to open * @param array $options An array of options for stream_context_create() * * @return bool */ public function connect($host, $port = null, $timeout = 30, $options = []) { static $streamok; //This is enabled by default since 5.0.0 but some providers disable it //Check this once and cache the result if (null === $streamok) { $streamok = function_exists('stream_socket_client'); } // Clear errors to avoid confusion $this->setError(''); // Make sure we are __not__ connected if ($this->connected()) { // Already connected, generate error $this->setError('Already connected to a server'); return false; } if (empty($port)) { $port = self::DEFAULT_PORT; } // Connect to the SMTP server $this->edebug( "Connection: opening to $host:$port, timeout=$timeout, options=" . (count($options) > 0 ? var_export($options, true) : 'array()'), self::DEBUG_CONNECTION ); $errno = 0; $errstr = ''; if ($streamok) { $socket_context = stream_context_create($options); set_error_handler([$this, 'errorHandler']); $this->smtp_conn = stream_socket_client( $host . ':' . $port, $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $socket_context ); restore_error_handler(); } else { //Fall back to fsockopen which should work in more places, but is missing some features $this->edebug( 'Connection: stream_socket_client not available, falling back to fsockopen', self::DEBUG_CONNECTION ); set_error_handler([$this, 'errorHandler']); $this->smtp_conn = fsockopen( $host, $port, $errno, $errstr, $timeout ); restore_error_handler(); } // Verify we connected properly if (!is_resource($this->smtp_conn)) { $this->setError( 'Failed to connect to server', '', (string) $errno, (string) $errstr ); $this->edebug( 'SMTP ERROR: ' . $this->error['error'] . ": $errstr ($errno)", self::DEBUG_CLIENT ); return false; } $this->edebug('Connection: opened', self::DEBUG_CONNECTION); // SMTP server can take longer to respond, give longer timeout for first read // Windows does not have support for this timeout function if (substr(PHP_OS, 0, 3) != 'WIN') { $max = ini_get('max_execution_time'); // Don't bother if unlimited if (0 != $max and $timeout > $max) { @set_time_limit($timeout); } stream_set_timeout($this->smtp_conn, $timeout, 0); } // Get any announcement $announce = $this->get_lines(); $this->edebug('SERVER -> CLIENT: ' . $announce, self::DEBUG_SERVER); return true; } /** * Initiate a TLS (encrypted) session. * * @return bool */ public function startTLS() { if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) { return false; } //Allow the best TLS version(s) we can $crypto_method = STREAM_CRYPTO_METHOD_TLS_CLIENT; //PHP 5.6.7 dropped inclusion of TLS 1.1 and 1.2 in STREAM_CRYPTO_METHOD_TLS_CLIENT //so add them back in manually if we can if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) { $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT; $crypto_method |= STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT; } // Begin encrypted connection set_error_handler([$this, 'errorHandler']); $crypto_ok = stream_socket_enable_crypto( $this->smtp_conn, true, $crypto_method ); restore_error_handler(); return (bool) $crypto_ok; } /** * Perform SMTP authentication. * Must be run after hello(). * * @see hello() * * @param string $username The user name * @param string $password The password * @param string $authtype The auth type (CRAM-MD5, PLAIN, LOGIN, XOAUTH2) * @param OAuth $OAuth An optional OAuth instance for XOAUTH2 authentication * * @return bool True if successfully authenticated */ public function authenticate( $username, $password, $authtype = null, $OAuth = null ) { if (!$this->server_caps) { $this->setError('Authentication is not allowed before HELO/EHLO'); return false; } if (array_key_exists('EHLO', $this->server_caps)) { // SMTP extensions are available; try to find a proper authentication method if (!array_key_exists('AUTH', $this->server_caps)) { $this->setError('Authentication is not allowed at this stage'); // 'at this stage' means that auth may be allowed after the stage changes // e.g. after STARTTLS return false; } $this->edebug('Auth method requested: ' . ($authtype ? $authtype : 'UNSPECIFIED'), self::DEBUG_LOWLEVEL); $this->edebug( 'Auth methods available on the server: ' . implode(',', $this->server_caps['AUTH']), self::DEBUG_LOWLEVEL ); //If we have requested a specific auth type, check the server supports it before trying others if (null !== $authtype and !in_array($authtype, $this->server_caps['AUTH'])) { $this->edebug('Requested auth method not available: ' . $authtype, self::DEBUG_LOWLEVEL); $authtype = null; } if (empty($authtype)) { //If no auth mechanism is specified, attempt to use these, in this order //Try CRAM-MD5 first as it's more secure than the others foreach (['CRAM-MD5', 'LOGIN', 'PLAIN', 'XOAUTH2'] as $method) { if (in_array($method, $this->server_caps['AUTH'])) { $authtype = $method; break; } } if (empty($authtype)) { $this->setError('No supported authentication methods found'); return false; } self::edebug('Auth method selected: ' . $authtype, self::DEBUG_LOWLEVEL); } if (!in_array($authtype, $this->server_caps['AUTH'])) { $this->setError("The requested authentication method \"$authtype\" is not supported by the server"); return false; } } elseif (empty($authtype)) { $authtype = 'LOGIN'; } switch ($authtype) { case 'PLAIN': // Start authentication if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) { return false; } // Send encoded username and password if (!$this->sendCommand( 'User & Password', base64_encode("\0" . $username . "\0" . $password), 235 ) ) { return false; } break; case 'LOGIN': // Start authentication if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) { return false; } if (!$this->sendCommand('Username', base64_encode($username), 334)) { return false; } if (!$this->sendCommand('Password', base64_encode($password), 235)) { return false; } break; case 'CRAM-MD5': // Start authentication if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) { return false; } // Get the challenge $challenge = base64_decode(substr($this->last_reply, 4)); // Build the response $response = $username . ' ' . $this->hmac($challenge, $password); // send encoded credentials return $this->sendCommand('Username', base64_encode($response), 235); case 'XOAUTH2': //The OAuth instance must be set up prior to requesting auth. if (null === $OAuth) { return false; } $oauth = $OAuth->getOauth64(); // Start authentication if (!$this->sendCommand('AUTH', 'AUTH XOAUTH2 ' . $oauth, 235)) { return false; } break; default: $this->setError("Authentication method \"$authtype\" is not supported"); return false; } return true; } /** * Calculate an MD5 HMAC hash. * Works like hash_hmac('md5', $data, $key) * in case that function is not available. * * @param string $data The data to hash * @param string $key The key to hash with * * @return string */ protected function hmac($data, $key) { if (function_exists('hash_hmac')) { return hash_hmac('md5', $data, $key); } // The following borrowed from // http://php.net/manual/en/function.mhash.php#27225 // RFC 2104 HMAC implementation for php. // Creates an md5 HMAC. // Eliminates the need to install mhash to compute a HMAC // by Lance Rushing $bytelen = 64; // byte length for md5 if (strlen($key) > $bytelen) { $key = pack('H*', md5($key)); } $key = str_pad($key, $bytelen, chr(0x00)); $ipad = str_pad('', $bytelen, chr(0x36)); $opad = str_pad('', $bytelen, chr(0x5c)); $k_ipad = $key ^ $ipad; $k_opad = $key ^ $opad; return md5($k_opad . pack('H*', md5($k_ipad . $data))); } /** * Check connection state. * * @return bool True if connected */ public function connected() { if (is_resource($this->smtp_conn)) { $sock_status = stream_get_meta_data($this->smtp_conn); if ($sock_status['eof']) { // The socket is valid but we are not connected $this->edebug( 'SMTP NOTICE: EOF caught while checking if connected', self::DEBUG_CLIENT ); $this->close(); return false; } return true; // everything looks good } return false; } /** * Close the socket and clean up the state of the class. * Don't use this function without first trying to use QUIT. * * @see quit() */ public function close() { $this->setError(''); $this->server_caps = null; $this->helo_rply = null; if (is_resource($this->smtp_conn)) { // close the connection and cleanup fclose($this->smtp_conn); $this->smtp_conn = null; //Makes for cleaner serialization $this->edebug('Connection: closed', self::DEBUG_CONNECTION); } } /** * Send an SMTP DATA command. * Issues a data command and sends the msg_data to the server, * finializing the mail transaction. $msg_data is the message * that is to be send with the headers. Each header needs to be * on a single line followed by a with the message headers * and the message body being separated by an additional . * Implements RFC 821: DATA . * * @param string $msg_data Message data to send * * @return bool */ public function data($msg_data) { //This will use the standard timelimit if (!$this->sendCommand('DATA', 'DATA', 354)) { return false; } /* The server is ready to accept data! * According to rfc821 we should not send more than 1000 characters on a single line (including the LE) * so we will break the data up into lines by \r and/or \n then if needed we will break each of those into * smaller lines to fit within the limit. * We will also look for lines that start with a '.' and prepend an additional '.'. * NOTE: this does not count towards line-length limit. */ // Normalize line breaks before exploding $lines = explode("\n", str_replace(["\r\n", "\r"], "\n", $msg_data)); /* To distinguish between a complete RFC822 message and a plain message body, we check if the first field * of the first line (':' separated) does not contain a space then it _should_ be a header and we will * process all lines before a blank line as headers. */ $field = substr($lines[0], 0, strpos($lines[0], ':')); $in_headers = false; if (!empty($field) and strpos($field, ' ') === false) { $in_headers = true; } foreach ($lines as $line) { $lines_out = []; if ($in_headers and $line == '') { $in_headers = false; } //Break this line up into several smaller lines if it's too long //Micro-optimisation: isset($str[$len]) is faster than (strlen($str) > $len), while (isset($line[self::MAX_LINE_LENGTH])) { //Working backwards, try to find a space within the last MAX_LINE_LENGTH chars of the line to break on //so as to avoid breaking in the middle of a word $pos = strrpos(substr($line, 0, self::MAX_LINE_LENGTH), ' '); //Deliberately matches both false and 0 if (!$pos) { //No nice break found, add a hard break $pos = self::MAX_LINE_LENGTH - 1; $lines_out[] = substr($line, 0, $pos); $line = substr($line, $pos); } else { //Break at the found point $lines_out[] = substr($line, 0, $pos); //Move along by the amount we dealt with $line = substr($line, $pos + 1); } //If processing headers add a LWSP-char to the front of new line RFC822 section 3.1.1 if ($in_headers) { $line = "\t" . $line; } } $lines_out[] = $line; //Send the lines to the server foreach ($lines_out as $line_out) { //RFC2821 section 4.5.2 if (!empty($line_out) and $line_out[0] == '.') { $line_out = '.' . $line_out; } $this->client_send($line_out . static::LE, 'DATA'); } } //Message data has been sent, complete the command //Increase timelimit for end of DATA command $savetimelimit = $this->Timelimit; $this->Timelimit = $this->Timelimit * 2; $result = $this->sendCommand('DATA END', '.', 250); $this->recordLastTransactionID(); //Restore timelimit $this->Timelimit = $savetimelimit; return $result; } /** * Send an SMTP HELO or EHLO command. * Used to identify the sending server to the receiving server. * This makes sure that client and server are in a known state. * Implements RFC 821: HELO * and RFC 2821 EHLO. * * @param string $host The host name or IP to connect to * * @return bool */ public function hello($host = '') { //Try extended hello first (RFC 2821) return $this->sendHello('EHLO', $host) or $this->sendHello('HELO', $host); } /** * Send an SMTP HELO or EHLO command. * Low-level implementation used by hello(). * * @param string $hello The HELO string * @param string $host The hostname to say we are * * @return bool * * @see hello() */ protected function sendHello($hello, $host) { $noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250); $this->helo_rply = $this->last_reply; if ($noerror) { $this->parseHelloFields($hello); } else { $this->server_caps = null; } return $noerror; } /** * Parse a reply to HELO/EHLO command to discover server extensions. * In case of HELO, the only parameter that can be discovered is a server name. * * @param string $type `HELO` or `EHLO` */ protected function parseHelloFields($type) { $this->server_caps = []; $lines = explode("\n", $this->helo_rply); foreach ($lines as $n => $s) { //First 4 chars contain response code followed by - or space $s = trim(substr($s, 4)); if (empty($s)) { continue; } $fields = explode(' ', $s); if (!empty($fields)) { if (!$n) { $name = $type; $fields = $fields[0]; } else { $name = array_shift($fields); switch ($name) { case 'SIZE': $fields = ($fields ? $fields[0] : 0); break; case 'AUTH': if (!is_array($fields)) { $fields = []; } break; default: $fields = true; } } $this->server_caps[$name] = $fields; } } } /** * Send an SMTP MAIL command. * Starts a mail transaction from the email address specified in * $from. Returns true if successful or false otherwise. If True * the mail transaction is started and then one or more recipient * commands may be called followed by a data command. * Implements RFC 821: MAIL FROM: . * * @param string $from Source address of this message * * @return bool */ public function mail($from) { $useVerp = ($this->do_verp ? ' XVERP' : ''); return $this->sendCommand( 'MAIL FROM', 'MAIL FROM:<' . $from . '>' . $useVerp, 250 ); } /** * Send an SMTP QUIT command. * Closes the socket if there is no error or the $close_on_error argument is true. * Implements from RFC 821: QUIT . * * @param bool $close_on_error Should the connection close if an error occurs? * * @return bool */ public function quit($close_on_error = true) { $noerror = $this->sendCommand('QUIT', 'QUIT', 221); $err = $this->error; //Save any error if ($noerror or $close_on_error) { $this->close(); $this->error = $err; //Restore any error from the quit command } return $noerror; } /** * Send an SMTP RCPT command. * Sets the TO argument to $toaddr. * Returns true if the recipient was accepted false if it was rejected. * Implements from RFC 821: RCPT TO: . * * @param string $address The address the message is being sent to * @param string $dsn Comma separated list of DSN notifications. NEVER, SUCCESS, FAILURE * or DELAY. If you specify NEVER all other notifications are ignored. * * @return bool */ public function recipient($address, $dsn = '') { if (empty($dsn)) { $rcpt = 'RCPT TO:<' . $address . '>'; } else { $dsn = strtoupper($dsn); $notify = []; if (strpos($dsn, 'NEVER') !== false) { $notify[] = 'NEVER'; } else { foreach (['SUCCESS', 'FAILURE', 'DELAY'] as $value) { if (strpos($dsn, $value) !== false) { $notify[] = $value; } } } $rcpt = 'RCPT TO:<' . $address . '> NOTIFY=' . implode(',', $notify); } return $this->sendCommand( 'RCPT TO', $rcpt, [250, 251] ); } /** * Send an SMTP RSET command. * Abort any transaction that is currently in progress. * Implements RFC 821: RSET . * * @return bool True on success */ public function reset() { return $this->sendCommand('RSET', 'RSET', 250); } /** * Send a command to an SMTP server and check its return code. * * @param string $command The command name - not sent to the server * @param string $commandstring The actual command to send * @param int|array $expect One or more expected integer success codes * * @return bool True on success */ protected function sendCommand($command, $commandstring, $expect) { if (!$this->connected()) { $this->setError("Called $command without being connected"); return false; } //Reject line breaks in all commands if (strpos($commandstring, "\n") !== false or strpos($commandstring, "\r") !== false) { $this->setError("Command '$command' contained line breaks"); return false; } $this->client_send($commandstring . static::LE, $command); $this->last_reply = $this->get_lines(); // Fetch SMTP code and possible error code explanation $matches = []; if (preg_match('/^([0-9]{3})[ -](?:([0-9]\\.[0-9]\\.[0-9]{1,2}) )?/', $this->last_reply, $matches)) { $code = $matches[1]; $code_ex = (count($matches) > 2 ? $matches[2] : null); // Cut off error code from each response line $detail = preg_replace( "/{$code}[ -]" . ($code_ex ? str_replace('.', '\\.', $code_ex) . ' ' : '') . '/m', '', $this->last_reply ); } else { // Fall back to simple parsing if regex fails $code = substr($this->last_reply, 0, 3); $code_ex = null; $detail = substr($this->last_reply, 4); } $this->edebug('SERVER -> CLIENT: ' . $this->last_reply, self::DEBUG_SERVER); if (!in_array($code, (array) $expect)) { $this->setError( "$command command failed", $detail, $code, $code_ex ); $this->edebug( 'SMTP ERROR: ' . $this->error['error'] . ': ' . $this->last_reply, self::DEBUG_CLIENT ); return false; } $this->setError(''); return true; } /** * Send an SMTP SAML command. * Starts a mail transaction from the email address specified in $from. * Returns true if successful or false otherwise. If True * the mail transaction is started and then one or more recipient * commands may be called followed by a data command. This command * will send the message to the users terminal if they are logged * in and send them an email. * Implements RFC 821: SAML FROM: . * * @param string $from The address the message is from * * @return bool */ public function sendAndMail($from) { return $this->sendCommand('SAML', "SAML FROM:$from", 250); } /** * Send an SMTP VRFY command. * * @param string $name The name to verify * * @return bool */ public function verify($name) { return $this->sendCommand('VRFY', "VRFY $name", [250, 251]); } /** * Send an SMTP NOOP command. * Used to keep keep-alives alive, doesn't actually do anything. * * @return bool */ public function noop() { return $this->sendCommand('NOOP', 'NOOP', 250); } /** * Send an SMTP TURN command. * This is an optional command for SMTP that this class does not support. * This method is here to make the RFC821 Definition complete for this class * and _may_ be implemented in future. * Implements from RFC 821: TURN . * * @return bool */ public function turn() { $this->setError('The SMTP TURN command is not implemented'); $this->edebug('SMTP NOTICE: ' . $this->error['error'], self::DEBUG_CLIENT); return false; } /** * Send raw data to the server. * * @param string $data The data to send * @param string $command Optionally, the command this is part of, used only for controlling debug output * * @return int|bool The number of bytes sent to the server or false on error */ public function client_send($data, $command = '') { //If SMTP transcripts are left enabled, or debug output is posted online //it can leak credentials, so hide credentials in all but lowest level if (self::DEBUG_LOWLEVEL > $this->do_debug and in_array($command, ['User & Password', 'Username', 'Password'], true)) { $this->edebug('CLIENT -> SERVER: