Initial Commit

core/External/PHPMailer/Exception.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * PHPMailer Exception class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @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.
+ */
+
+namespace External\PHPMailer;
+
+/**
+ * PHPMailer exception handler.
+ *
+ * @author Marcus Bointon <phpmailer@synchromedia.co.uk>
+ */
+class Exception extends \Exception
+{
+    /**
+     * Prettify error message output.
+     *
+     * @return string
+     */
+    public function errorMessage()
+    {
+        return '<strong>' . htmlspecialchars($this->getMessage()) . "</strong><br />\n";
+    }
+}

core/External/PHPMailer/OAuth.php

@@ -0,0 +1,138 @@
+<?php
+/**
+ * PHPMailer - PHP email creation and transport class.
+ * PHP Version 5.5.
+ *
+ * @see       https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2015 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.
+ */
+
+namespace External\PHPMailer;
+
+use League\OAuth2\Client\Grant\RefreshToken;
+use League\OAuth2\Client\Provider\AbstractProvider;
+use League\OAuth2\Client\Token\AccessToken;
+
+/**
+ * OAuth - OAuth2 authentication wrapper class.
+ * Uses the oauth2-client package from the League of Extraordinary Packages.
+ *
+ * @see     http://oauth2-client.thephpleague.com
+ *
+ * @author  Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ */
+class OAuth
+{
+    /**
+     * An instance of the League OAuth Client Provider.
+     *
+     * @var AbstractProvider
+     */
+    protected $provider;
+
+    /**
+     * The current OAuth access token.
+     *
+     * @var AccessToken
+     */
+    protected $oauthToken;
+
+    /**
+     * The user's email address, usually used as the login ID
+     * and also the from address when sending email.
+     *
+     * @var string
+     */
+    protected $oauthUserEmail = '';
+
+    /**
+     * The client secret, generated in the app definition of the service you're connecting to.
+     *
+     * @var string
+     */
+    protected $oauthClientSecret = '';
+
+    /**
+     * The client ID, generated in the app definition of the service you're connecting to.
+     *
+     * @var string
+     */
+    protected $oauthClientId = '';
+
+    /**
+     * The refresh token, used to obtain new AccessTokens.
+     *
+     * @var string
+     */
+    protected $oauthRefreshToken = '';
+
+    /**
+     * OAuth constructor.
+     *
+     * @param array $options Associative array containing
+     *                       `provider`, `userName`, `clientSecret`, `clientId` and `refreshToken` elements
+     */
+    public function __construct($options)
+    {
+        $this->provider = $options['provider'];
+        $this->oauthUserEmail = $options['userName'];
+        $this->oauthClientSecret = $options['clientSecret'];
+        $this->oauthClientId = $options['clientId'];
+        $this->oauthRefreshToken = $options['refreshToken'];
+    }
+
+    /**
+     * Get a new RefreshToken.
+     *
+     * @return RefreshToken
+     */
+    protected function getGrant()
+    {
+        return new RefreshToken();
+    }
+
+    /**
+     * Get a new AccessToken.
+     *
+     * @return AccessToken
+     */
+    protected function getToken()
+    {
+        return $this->provider->getAccessToken(
+            $this->getGrant(),
+            ['refresh_token' => $this->oauthRefreshToken]
+        );
+    }
+
+    /**
+     * Generate a base64-encoded OAuth token.
+     *
+     * @return string
+     */
+    public function getOauth64()
+    {
+        // Get a new token if it's not available or has expired
+        if (null === $this->oauthToken || $this->oauthToken->hasExpired()) {
+            $this->oauthToken = $this->getToken();
+        }
+
+        return base64_encode(
+            'user=' .
+            $this->oauthUserEmail .
+            "\001auth=Bearer " .
+            $this->oauthToken .
+            "\001\001"
+        );
+    }
+}

core/External/PHPMailer/POP3.php

@@ -0,0 +1,419 @@
+<?php
+/**
+ * PHPMailer POP-Before-SMTP Authentication Class.
+ * PHP Version 5.5.
+ *
+ * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2019 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.
+ */
+
+namespace External\PHPMailer;
+
+/**
+ * PHPMailer POP-Before-SMTP Authentication Class.
+ * Specifically for PHPMailer to use for RFC1939 POP-before-SMTP authentication.
+ * 1) This class does not support APOP authentication.
+ * 2) Opening and closing lots of POP3 connections can be quite slow. If you need
+ *   to send a batch of emails then just perform the authentication once at the start,
+ *   and then loop through your mail sending script. Providing this process doesn't
+ *   take longer than the verification period lasts on your POP3 server, you should be fine.
+ * 3) This is really ancient technology; you should only need to use it to talk to very old systems.
+ * 4) This POP3 class is deliberately lightweight and incomplete, implementing just
+ *   enough to do authentication.
+ *   If you want a more complete class there are other POP3 classes for PHP available.
+ *
+ * @author Richard Davey (original author) <rich@corephp.co.uk>
+ * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ */
+class POP3
+{
+    /**
+     * The POP3 PHPMailer Version number.
+     *
+     * @var string
+     */
+    const VERSION = '6.1.4';
+
+    /**
+     * Default POP3 port number.
+     *
+     * @var int
+     */
+    const DEFAULT_PORT = 110;
+
+    /**
+     * Default timeout in seconds.
+     *
+     * @var int
+     */
+    const DEFAULT_TIMEOUT = 30;
+
+    /**
+     * Debug display level.
+     * Options: 0 = no, 1+ = yes.
+     *
+     * @var int
+     */
+    public $do_debug = 0;
+
+    /**
+     * POP3 mail server hostname.
+     *
+     * @var string
+     */
+    public $host;
+
+    /**
+     * POP3 port number.
+     *
+     * @var int
+     */
+    public $port;
+
+    /**
+     * POP3 Timeout Value in seconds.
+     *
+     * @var int
+     */
+    public $tval;
+
+    /**
+     * POP3 username.
+     *
+     * @var string
+     */
+    public $username;
+
+    /**
+     * POP3 password.
+     *
+     * @var string
+     */
+    public $password;
+
+    /**
+     * Resource handle for the POP3 connection socket.
+     *
+     * @var resource
+     */
+    protected $pop_conn;
+
+    /**
+     * Are we connected?
+     *
+     * @var bool
+     */
+    protected $connected = false;
+
+    /**
+     * Error container.
+     *
+     * @var array
+     */
+    protected $errors = [];
+
+    /**
+     * Line break constant.
+     */
+    const LE = "\r\n";
+
+    /**
+     * Simple static wrapper for all-in-one POP before SMTP.
+     *
+     * @param string   $host        The hostname to connect to
+     * @param int|bool $port        The port number to connect to
+     * @param int|bool $timeout     The timeout value
+     * @param string   $username
+     * @param string   $password
+     * @param int      $debug_level
+     *
+     * @return bool
+     */
+    public static function popBeforeSmtp(
+        $host,
+        $port = false,
+        $timeout = false,
+        $username = '',
+        $password = '',
+        $debug_level = 0
+    ) {
+        $pop = new self();
+
+        return $pop->authorise($host, $port, $timeout, $username, $password, $debug_level);
+    }
+
+    /**
+     * Authenticate with a POP3 server.
+     * A connect, login, disconnect sequence
+     * appropriate for POP-before SMTP authorisation.
+     *
+     * @param string   $host        The hostname to connect to
+     * @param int|bool $port        The port number to connect to
+     * @param int|bool $timeout     The timeout value
+     * @param string   $username
+     * @param string   $password
+     * @param int      $debug_level
+     *
+     * @return bool
+     */
+    public function authorise($host, $port = false, $timeout = false, $username = '', $password = '', $debug_level = 0)
+    {
+        $this->host = $host;
+        // If no port value provided, use default
+        if (false === $port) {
+            $this->port = static::DEFAULT_PORT;
+        } else {
+            $this->port = (int) $port;
+        }
+        // If no timeout value provided, use default
+        if (false === $timeout) {
+            $this->tval = static::DEFAULT_TIMEOUT;
+        } else {
+            $this->tval = (int) $timeout;
+        }
+        $this->do_debug = $debug_level;
+        $this->username = $username;
+        $this->password = $password;
+        //  Reset the error log
+        $this->errors = [];
+        //  connect
+        $result = $this->connect($this->host, $this->port, $this->tval);
+        if ($result) {
+            $login_result = $this->login($this->username, $this->password);
+            if ($login_result) {
+                $this->disconnect();
+
+                return true;
+            }
+        }
+        // We need to disconnect regardless of whether the login succeeded
+        $this->disconnect();
+
+        return false;
+    }
+
+    /**
+     * Connect to a POP3 server.
+     *
+     * @param string   $host
+     * @param int|bool $port
+     * @param int      $tval
+     *
+     * @return bool
+     */
+    public function connect($host, $port = false, $tval = 30)
+    {
+        //  Are we already connected?
+        if ($this->connected) {
+            return true;
+        }
+
+        //On Windows this will raise a PHP Warning error if the hostname doesn't exist.
+        //Rather than suppress it with @fsockopen, capture it cleanly instead
+        set_error_handler([$this, 'catchWarning']);
+
+        if (false === $port) {
+            $port = static::DEFAULT_PORT;
+        }
+
+        //  connect to the POP3 server
+        $this->pop_conn = fsockopen(
+            $host, //  POP3 Host
+            $port, //  Port #
+            $errno, //  Error Number
+            $errstr, //  Error Message
+            $tval
+        ); //  Timeout (seconds)
+        //  Restore the error handler
+        restore_error_handler();
+
+        //  Did we connect?
+        if (false === $this->pop_conn) {
+            //  It would appear not...
+            $this->setError(
+                "Failed to connect to server $host on port $port. errno: $errno; errstr: $errstr"
+            );
+
+            return false;
+        }
+
+        //  Increase the stream time-out
+        stream_set_timeout($this->pop_conn, $tval, 0);
+
+        //  Get the POP3 server response
+        $pop3_response = $this->getResponse();
+        //  Check for the +OK
+        if ($this->checkResponse($pop3_response)) {
+            //  The connection is established and the POP3 server is talking
+            $this->connected = true;
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Log in to the POP3 server.
+     * Does not support APOP (RFC 2828, 4949).
+     *
+     * @param string $username
+     * @param string $password
+     *
+     * @return bool
+     */
+    public function login($username = '', $password = '')
+    {
+        if (!$this->connected) {
+            $this->setError('Not connected to POP3 server');
+        }
+        if (empty($username)) {
+            $username = $this->username;
+        }
+        if (empty($password)) {
+            $password = $this->password;
+        }
+
+        // Send the Username
+        $this->sendString("USER $username" . static::LE);
+        $pop3_response = $this->getResponse();
+        if ($this->checkResponse($pop3_response)) {
+            // Send the Password
+            $this->sendString("PASS $password" . static::LE);
+            $pop3_response = $this->getResponse();
+            if ($this->checkResponse($pop3_response)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Disconnect from the POP3 server.
+     */
+    public function disconnect()
+    {
+        $this->sendString('QUIT');
+        //The QUIT command may cause the daemon to exit, which will kill our connection
+        //So ignore errors here
+        try {
+            @fclose($this->pop_conn);
+        } catch (Exception $e) {
+            //Do nothing
+        }
+    }
+
+    /**
+     * Get a response from the POP3 server.
+     *
+     * @param int $size The maximum number of bytes to retrieve
+     *
+     * @return string
+     */
+    protected function getResponse($size = 128)
+    {
+        $response = fgets($this->pop_conn, $size);
+        if ($this->do_debug >= 1) {
+            echo 'Server -> Client: ', $response;
+        }
+
+        return $response;
+    }
+
+    /**
+     * Send raw data to the POP3 server.
+     *
+     * @param string $string
+     *
+     * @return int
+     */
+    protected function sendString($string)
+    {
+        if ($this->pop_conn) {
+            if ($this->do_debug >= 2) { //Show client messages when debug >= 2
+                echo 'Client -> Server: ', $string;
+            }
+
+            return fwrite($this->pop_conn, $string, strlen($string));
+        }
+
+        return 0;
+    }
+
+    /**
+     * Checks the POP3 server response.
+     * Looks for for +OK or -ERR.
+     *
+     * @param string $string
+     *
+     * @return bool
+     */
+    protected function checkResponse($string)
+    {
+        if (strpos($string, '+OK') !== 0) {
+            $this->setError("Server reported an error: $string");
+
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Add an error to the internal error store.
+     * Also display debug output if it's enabled.
+     *
+     * @param string $error
+     */
+    protected function setError($error)
+    {
+        $this->errors[] = $error;
+        if ($this->do_debug >= 1) {
+            echo '<pre>';
+            foreach ($this->errors as $e) {
+                print_r($e);
+            }
+            echo '</pre>';
+        }
+    }
+
+    /**
+     * Get an array of error messages, if any.
+     *
+     * @return array
+     */
+    public function getErrors()
+    {
+        return $this->errors;
+    }
+
+    /**
+     * POP3 connection error handler.
+     *
+     * @param int    $errno
+     * @param string $errstr
+     * @param string $errfile
+     * @param int    $errline
+     */
+    protected function catchWarning($errno, $errstr, $errfile, $errline)
+    {
+        $this->setError(
+            'Connecting to the POP3 server raised a PHP warning:' .
+            "errno: $errno errstr: $errstr; errfile: $errfile; errline: $errline"
+        );
+    }
+}

core/External/jwt.php

@@ -0,0 +1,199 @@
+<?php
+
+/**
+ * JSON Web Token implementation, based on this spec:
+ * http://tools.ietf.org/html/draft-ietf-oauth-json-web-token-06
+ *
+ * PHP version 5
+ *
+ * @category Authentication
+ * @package  Authentication_JWT
+ * @author   Neuman Vong <neuman@twilio.com>
+ * @author   Anant Narayanan <anant@php.net>
+ * @license  http://opensource.org/licenses/BSD-3-Clause 3-clause BSD
+ * @link     https://github.com/firebase/php-jwt
+ */
+
+namespace External;
+
+class JWT
+{
+	/**
+	 * Decodes a JWT string into a PHP object.
+	 *
+	 * @param string      $jwt    The JWT
+	 * @param string|null $key    The secret key
+	 * @param bool        $verify Don't skip verification process
+	 *
+	 * @return object      The JWT's payload as a PHP object
+	 * @throws UnexpectedValueException Provided JWT was invalid
+	 * @throws DomainException          Algorithm was not provided
+	 *
+	 * @uses jsonDecode
+	 * @uses urlsafeB64Decode
+	 */
+	public static function decode($jwt, $key = null, $verify = true)
+	{
+		$tks = explode('.', $jwt);
+		if (count($tks) != 3) {
+			throw new UnexpectedValueException('Wrong number of segments');
+		}
+		list($headb64, $bodyb64, $cryptob64) = $tks;
+		if (null === ($header = JWT::jsonDecode(JWT::urlsafeB64Decode($headb64)))) {
+			throw new UnexpectedValueException('Invalid segment encoding');
+		}
+		if (null === $payload = JWT::jsonDecode(JWT::urlsafeB64Decode($bodyb64))) {
+			throw new UnexpectedValueException('Invalid segment encoding');
+		}
+		$sig = JWT::urlsafeB64Decode($cryptob64);
+		if ($verify) {
+			if (empty($header->alg)) {
+				throw new DomainException('Empty algorithm');
+			}
+			if ($sig != JWT::sign("$headb64.$bodyb64", $key, $header->alg)) {
+				throw new UnexpectedValueException('Signature verification failed');
+			}
+		}
+		return $payload;
+	}
+
+	/**
+	 * Converts and signs a PHP object or array into a JWT string.
+	 *
+	 * @param object|array $payload PHP object or array
+	 * @param string       $key     The secret key
+	 * @param string       $algo    The signing algorithm. Supported
+	 *                              algorithms are 'HS256', 'HS384' and 'HS512'
+	 *
+	 * @return string      A signed JWT
+	 * @uses jsonEncode
+	 * @uses urlsafeB64Encode
+	 */
+	public static function encode($payload, $key, $algo = 'HS256')
+	{
+		$header = array('typ' => 'JWT', 'alg' => $algo);
+
+		$segments = array();
+		$segments[] = JWT::urlsafeB64Encode(JWT::jsonEncode($header));
+		$segments[] = JWT::urlsafeB64Encode(JWT::jsonEncode($payload));
+		$signing_input = implode('.', $segments);
+
+		$signature = JWT::sign($signing_input, $key, $algo);
+		$segments[] = JWT::urlsafeB64Encode($signature);
+
+		return implode('.', $segments);
+	}
+
+	/**
+	 * Sign a string with a given key and algorithm.
+	 *
+	 * @param string $msg    The message to sign
+	 * @param string $key    The secret key
+	 * @param string $method The signing algorithm. Supported
+	 *                       algorithms are 'HS256', 'HS384' and 'HS512'
+	 *
+	 * @return string          An encrypted message
+	 * @throws DomainException Unsupported algorithm was specified
+	 */
+	public static function sign($msg, $key, $method = 'HS256')
+	{
+		$methods = array(
+			'HS256' => 'sha256',
+			'HS384' => 'sha384',
+			'HS512' => 'sha512',
+		);
+		if (empty($methods[$method])) {
+			throw new DomainException('Algorithm not supported');
+		}
+		return hash_hmac($methods[$method], $msg, $key, true);
+	}
+
+	/**
+	 * Decode a JSON string into a PHP object.
+	 *
+	 * @param string $input JSON string
+	 *
+	 * @return object          Object representation of JSON string
+	 * @throws DomainException Provided string was invalid JSON
+	 */
+	public static function jsonDecode($input)
+	{
+		$obj = json_decode($input);
+		if (function_exists('json_last_error') && $errno = json_last_error()) {
+			JWT::_handleJsonError($errno);
+		} else if ($obj === null && $input !== 'null') {
+			throw new DomainException('Null result with non-null input');
+		}
+		return $obj;
+	}
+
+	/**
+	 * Encode a PHP object into a JSON string.
+	 *
+	 * @param object|array $input A PHP object or array
+	 *
+	 * @return string          JSON representation of the PHP object or array
+	 * @throws DomainException Provided object could not be encoded to valid JSON
+	 */
+	public static function jsonEncode($input)
+	{
+		$json = json_encode($input);
+		if (function_exists('json_last_error') && $errno = json_last_error()) {
+			JWT::_handleJsonError($errno);
+		} else if ($json === 'null' && $input !== null) {
+			throw new DomainException('Null result with non-null input');
+		}
+		return $json;
+	}
+
+	/**
+	 * Decode a string with URL-safe Base64.
+	 *
+	 * @param string $input A Base64 encoded string
+	 *
+	 * @return string A decoded string
+	 */
+	public static function urlsafeB64Decode($input)
+	{
+		$remainder = strlen($input) % 4;
+		if ($remainder) {
+			$padlen = 4 - $remainder;
+			$input .= str_repeat('=', $padlen);
+		}
+		return base64_decode(strtr($input, '-_', '+/'));
+	}
+
+	/**
+	 * Encode a string with URL-safe Base64.
+	 *
+	 * @param string $input The string you want encoded
+	 *
+	 * @return string The base64 encode of what you passed in
+	 */
+	public static function urlsafeB64Encode($input)
+	{
+		return str_replace('=', '', strtr(base64_encode($input), '+/', '-_'));
+	}
+
+	/**
+	 * Helper method to create a JSON error.
+	 *
+	 * @param int $errno An error number from json_last_error()
+	 *
+	 * @return void
+	 */
+	private static function _handleJsonError($errno)
+	{
+		$messages = array(
+			JSON_ERROR_DEPTH => 'Maximum stack depth exceeded',
+			JSON_ERROR_CTRL_CHAR => 'Unexpected control character found',
+			JSON_ERROR_SYNTAX => 'Syntax error, malformed JSON'
+		);
+		throw new DomainException(
+			isset($messages[$errno])
+			? $messages[$errno]
+			: 'Unknown JSON error: ' . $errno
+		);
+	}
+
+}