X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/53f4633144ed68c8b8fb5861f992b5489894a940..refs/tags/wordpress-4.7.1:/wp-includes/class-smtp.php

diff --git a/wp-includes/class-smtp.php b/wp-includes/class-smtp.php
index 1eae77a1..3ad08192 100644
--- a/wp-includes/class-smtp.php
+++ b/wp-includes/class-smtp.php
@@ -28,25 +28,25 @@ class SMTP
 {
     /**
      * The PHPMailer SMTP version number.
-     * @type string
+     * @var string
      */
-    const VERSION = '5.2.10';
+    const VERSION = '5.2.22';
 
     /**
      * SMTP line break constant.
-     * @type string
+     * @var string
      */
     const CRLF = "\r\n";
 
     /**
      * The SMTP port to use if one is not specified.
-     * @type integer
+     * @var integer
      */
     const DEFAULT_SMTP_PORT = 25;
 
     /**
      * The maximum line length allowed by RFC 2822 section 2.1.1
-     * @type integer
+     * @var integer
      */
     const MAX_LINE_LENGTH = 998;
 
@@ -77,15 +77,15 @@ class SMTP
 
     /**
      * The PHPMailer SMTP Version number.
-     * @type string
+     * @var string
      * @deprecated Use the `VERSION` constant instead
      * @see SMTP::VERSION
      */
-    public $Version = '5.2.10';
+    public $Version = '5.2.22';
 
     /**
      * SMTP server port number.
-     * @type integer
+     * @var integer
      * @deprecated This is only ever used as a default value, so use the `DEFAULT_SMTP_PORT` constant instead
      * @see SMTP::DEFAULT_SMTP_PORT
      */
@@ -93,7 +93,7 @@ class SMTP
 
     /**
      * SMTP reply line ending.
-     * @type string
+     * @var string
      * @deprecated Use the `CRLF` constant instead
      * @see SMTP::CRLF
      */
@@ -107,7 +107,7 @@ class SMTP
      * * 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
-     * @type integer
+     * @var integer
      */
     public $do_debug = self::DEBUG_OFF;
 
@@ -122,7 +122,7 @@ class SMTP
      * <code>
      * $smtp->Debugoutput = function($str, $level) {echo "debug level $level; message: $str";};
      * </code>
-     * @type string|callable
+     * @var string|callable
      */
     public $Debugoutput = 'echo';
 
@@ -130,7 +130,7 @@ class SMTP
      * Whether to use VERP.
      * @link http://en.wikipedia.org/wiki/Variable_envelope_return_path
      * @link http://www.postfix.org/VERP_README.html Info on VERP
-     * @type boolean
+     * @var boolean
      */
     public $do_verp = false;
 
@@ -139,26 +139,37 @@ class SMTP
      * 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.
      * @link http://tools.ietf.org/html/rfc2821#section-4.5.3.2
-     * @type integer
+     * @var integer
      */
     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
-     * @type integer
+     * @var integer
      */
     public $Timelimit = 300;
 
+	/**
+	 * @var array patterns to extract smtp transaction id from smtp reply
+	 * Only first capture group will be use, use non-capturing group to deal with it
+	 * Extend this class to override this property to fulfil your needs.
+	 */
+	protected $smtp_transaction_id_patterns = array(
+		'exim' => '/[0-9]{3} OK id=(.*)/',
+		'sendmail' => '/[0-9]{3} 2.0.0 (.*) Message/',
+		'postfix' => '/[0-9]{3} 2.0.0 Ok: queued as (.*)/'
+	);
+
     /**
      * The socket for the server connection.
-     * @type resource
+     * @var resource
      */
     protected $smtp_conn;
 
     /**
      * Error information, if any, for the last SMTP command.
-     * @type array
+     * @var array
      */
     protected $error = array(
         'error' => '',
@@ -170,7 +181,7 @@ class SMTP
     /**
      * The reply the server sent to us for HELO.
      * If null, no HELO string has yet been received.
-     * @type string|null
+     * @var string|null
      */
     protected $helo_rply = null;
 
@@ -181,13 +192,13 @@ class SMTP
      * 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.
-     * @type array|null
+     * @var array|null
      */
     protected $server_caps = null;
 
     /**
      * The most recent reply received from the server.
-     * @type string
+     * @var string
      */
     protected $last_reply = '';
 
@@ -206,7 +217,7 @@ class SMTP
         }
         //Avoid clash with built-in function names
         if (!in_array($this->Debugoutput, array('error_log', 'html', 'echo')) and is_callable($this->Debugoutput)) {
-            call_user_func($this->Debugoutput, $str, $this->do_debug);
+            call_user_func($this->Debugoutput, $str, $level);
             return;
         }
         switch ($this->Debugoutput) {
@@ -272,8 +283,8 @@ class SMTP
         $errstr = '';
         if ($streamok) {
             $socket_context = stream_context_create($options);
-            //Suppress errors; connection failures are handled at a higher level
-            $this->smtp_conn = @stream_socket_client(
+            set_error_handler(array($this, 'errorHandler'));
+            $this->smtp_conn = stream_socket_client(
                 $host . ":" . $port,
                 $errno,
                 $errstr,
@@ -281,12 +292,14 @@ class SMTP
                 STREAM_CLIENT_CONNECT,
                 $socket_context
             );
+            restore_error_handler();
         } else {
             //Fall back to fsockopen which should work in more places, but is missing some features
             $this->edebug(
                 "Connection: stream_socket_client not available, falling back to fsockopen",
                 self::DEBUG_CONNECTION
             );
+            set_error_handler(array($this, 'errorHandler'));
             $this->smtp_conn = fsockopen(
                 $host,
                 $port,
@@ -294,6 +307,7 @@ class SMTP
                 $errstr,
                 $timeout
             );
+            restore_error_handler();
         }
         // Verify we connected properly
         if (!is_resource($this->smtp_conn)) {
@@ -336,11 +350,22 @@ class SMTP
         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
         if (!stream_socket_enable_crypto(
             $this->smtp_conn,
             true,
-            STREAM_CRYPTO_METHOD_TLS_CLIENT
+            $crypto_method
         )) {
             return false;
         }
@@ -351,20 +376,21 @@ class SMTP
      * 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 (PLAIN, LOGIN, NTLM, CRAM-MD5)
-     * @param string $realm       The auth realm for NTLM
+     * @param string $username The user name
+     * @param string $password The password
+     * @param string $authtype The auth type (PLAIN, LOGIN, CRAM-MD5)
+     * @param string $realm The auth realm for NTLM
      * @param string $workstation The auth workstation for NTLM
-     * @access public
-     * @return boolean True if successfully authenticated.
+     * @param null|OAuth $OAuth An optional OAuth instance (@see PHPMailerOAuth)
+     * @return bool True if successfully authenticated.* @access public
      */
     public function authenticate(
         $username,
         $password,
         $authtype = null,
         $realm = '',
-        $workstation = ''
+        $workstation = '',
+        $OAuth = null
     ) {
         if (!$this->server_caps) {
             $this->setError('Authentication is not allowed before HELO/EHLO');
@@ -388,7 +414,7 @@ class SMTP
             );
 
             if (empty($authtype)) {
-                foreach (array('LOGIN', 'CRAM-MD5', 'PLAIN') as $method) {
+                foreach (array('CRAM-MD5', 'LOGIN', 'PLAIN') as $method) {
                     if (in_array($method, $this->server_caps['AUTH'])) {
                         $authtype = $method;
                         break;
@@ -672,10 +698,12 @@ class SMTP
     protected function parseHelloFields($type)
     {
         $this->server_caps = array();
-        $lines = explode("\n", $this->last_reply);
+        $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 (!$s) {
+            if (empty($s)) {
                 continue;
             }
             $fields = explode(' ', $s);
@@ -685,11 +713,20 @@ class SMTP
                     $fields = $fields[0];
                 } else {
                     $name = array_shift($fields);
-                    if ($name == 'SIZE') {
-                        $fields = ($fields) ? $fields[0] : 0;
+                    switch ($name) {
+                        case 'SIZE':
+                            $fields = ($fields ? $fields[0] : 0);
+                            break;
+                        case 'AUTH':
+                            if (!is_array($fields)) {
+                                $fields = array();
+                            }
+                            break;
+                        default:
+                            $fields = true;
                     }
                 }
-                $this->server_caps[$name] = ($fields ? $fields : true);
+                $this->server_caps[$name] = $fields;
             }
         }
     }
@@ -739,15 +776,15 @@ class SMTP
      * Sets the TO argument to $toaddr.
      * Returns true if the recipient was accepted false if it was rejected.
      * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
-     * @param string $toaddr The address the message is being sent to
+     * @param string $address The address the message is being sent to
      * @access public
      * @return boolean
      */
-    public function recipient($toaddr)
+    public function recipient($address)
     {
         return $this->sendCommand(
             'RCPT TO',
-            'RCPT TO:<' . $toaddr . '>',
+            'RCPT TO:<' . $address . '>',
             array(250, 251)
         );
     }
@@ -766,9 +803,9 @@ class SMTP
 
     /**
      * 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 $command The command name - not sent to the server
      * @param string $commandstring The actual command to send
-     * @param integer|array $expect     One or more expected integer success codes
+     * @param integer|array $expect One or more expected integer success codes
      * @access protected
      * @return boolean True on success.
      */
@@ -778,6 +815,11 @@ class SMTP
             $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 . self::CRLF);
 
         $this->last_reply = $this->get_lines();
@@ -981,10 +1023,9 @@ class SMTP
         }
         while (is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
             $str = @fgets($this->smtp_conn, 515);
-            $this->edebug("SMTP -> get_lines(): \$data was \"$data\"", self::DEBUG_LOWLEVEL);
-            $this->edebug("SMTP -> get_lines(): \$str is \"$str\"", self::DEBUG_LOWLEVEL);
-            $data .= $str;
             $this->edebug("SMTP -> get_lines(): \$data is \"$data\"", self::DEBUG_LOWLEVEL);
+            $this->edebug("SMTP -> get_lines(): \$str is  \"$str\"", self::DEBUG_LOWLEVEL);
+            $data .= $str;
             // If 4th character is a space, we are done reading, break the loop, micro-optimisation over strlen
             if ((isset($str[3]) and $str[3] == ' ')) {
                 break;
@@ -1099,4 +1140,47 @@ class SMTP
     {
         return $this->Timeout;
     }
+
+    /**
+     * Reports an error number and string.
+     * @param integer $errno The error number returned by PHP.
+     * @param string $errmsg The error message returned by PHP.
+     */
+    protected function errorHandler($errno, $errmsg)
+    {
+        $notice = 'Connection: Failed to connect to server.';
+        $this->setError(
+            $notice,
+            $errno,
+            $errmsg
+        );
+        $this->edebug(
+            $notice . ' Error number ' . $errno . '. "Error notice: ' . $errmsg,
+            self::DEBUG_CONNECTION
+        );
+    }
+
+	/**
+	 * Will return the ID of the last smtp transaction based on a list of patterns provided
+	 * in SMTP::$smtp_transaction_id_patterns.
+	 * If no reply has been received yet, it will return null.
+	 * If no pattern has been matched, it will return false.
+	 * @return bool|null|string
+	 */
+	public function getLastTransactionID()
+	{
+		$reply = $this->getLastReply();
+
+		if (empty($reply)) {
+			return null;
+		}
+
+		foreach($this->smtp_transaction_id_patterns as $smtp_transaction_id_pattern) {
+			if(preg_match($smtp_transaction_id_pattern, $reply, $matches)) {
+				return $matches[1];
+			}
+		}
+
+		return false;
+    }
 }