Add email notifications

1 files changed, 512 insertions, 0 deletions

diff --git a/vendor/swiftmailer/classes/Swift/Signers/DomainKeySigner.php b/vendor/swiftmailer/classes/Swift/Signers/DomainKeySigner.php
new file mode 100644
index 00000000..07be7cd7
--- /dev/null
+++ b/vendor/swiftmailer/classes/Swift/Signers/DomainKeySigner.php
@@ -0,0 +1,512 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * DomainKey Signer used to apply DomainKeys Signature to a message
+ *
+ * @author     Xavier De Cock <xdecock@gmail.com>
+ */
+class Swift_Signers_DomainKeySigner implements Swift_Signers_HeaderSigner
+{
+    /**
+     * PrivateKey
+     *
+     * @var string
+     */
+    protected $_privateKey;
+
+    /**
+     * DomainName
+     *
+     * @var string
+     */
+    protected $_domainName;
+
+    /**
+     * Selector
+     *
+     * @var string
+     */
+    protected $_selector;
+
+    /**
+     * Hash algorithm used
+     *
+     * @var string
+     */
+    protected $_hashAlgorithm = 'rsa-sha1';
+
+    /**
+     * Canonisation method
+     *
+     * @var string
+     */
+    protected $_canon = 'simple';
+
+    /**
+     * Headers not being signed
+     *
+     * @var array
+     */
+    protected $_ignoredHeaders = array();
+
+    /**
+     * Signer identity
+     *
+     * @var string
+     */
+    protected $_signerIdentity;
+
+    /**
+     * Must we embed signed headers?
+     *
+     * @var bool
+     */
+    protected $_debugHeaders = false;
+
+    // work variables
+    /**
+     * Headers used to generate hash
+     *
+     * @var array
+     */
+    private $_signedHeaders = array();
+
+    /**
+     * Stores the signature header
+     *
+     * @var Swift_Mime_Headers_ParameterizedHeader
+     */
+    protected $_domainKeyHeader;
+
+    /**
+     * Hash Handler
+     *
+     * @var resource|null
+     */
+    private $_hashHandler;
+
+    private $_hash;
+
+    private $_canonData = '';
+
+    private $_bodyCanonEmptyCounter = 0;
+
+    private $_bodyCanonIgnoreStart = 2;
+
+    private $_bodyCanonSpace = false;
+
+    private $_bodyCanonLastChar = null;
+
+    private $_bodyCanonLine = '';
+
+    private $_bound = array();
+
+    /**
+     * Constructor
+     *
+     * @param string $privateKey
+     * @param string $domainName
+     * @param string $selector
+     */
+    public function __construct($privateKey, $domainName, $selector)
+    {
+        $this->_privateKey = $privateKey;
+        $this->_domainName = $domainName;
+        $this->_signerIdentity = '@' . $domainName;
+        $this->_selector = $selector;
+    }
+
+    /**
+     * Instanciate DomainKeySigner
+     *
+     * @param string $privateKey
+     * @param string $domainName
+     * @param string $selector
+     * @return Swift_Signers_DomainKeySigner
+     */
+    public static function newInstance($privateKey, $domainName, $selector)
+    {
+        return new static($privateKey, $domainName, $selector);
+    }
+
+    /**
+     * Resets internal states
+     *
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function reset()
+    {
+        $this->_hash = null;
+        $this->_hashHandler = null;
+        $this->_bodyCanonIgnoreStart = 2;
+        $this->_bodyCanonEmptyCounter = 0;
+        $this->_bodyCanonLastChar = null;
+        $this->_bodyCanonSpace = false;
+
+        return $this;
+    }
+
+    /**
+     * Writes $bytes to the end of the stream.
+     *
+     * Writing may not happen immediately if the stream chooses to buffer.  If
+     * you want to write these bytes with immediate effect, call {@link commit()}
+     * after calling write().
+     *
+     * This method returns the sequence ID of the write (i.e. 1 for first, 2 for
+     * second, etc etc).
+     *
+     * @param string $bytes
+     * @return int
+     * @throws Swift_IoException
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function write($bytes)
+    {
+        $this->_canonicalizeBody($bytes);
+        foreach ($this->_bound as $is) {
+            $is->write($bytes);
+        }
+
+        return $this;
+    }
+
+    /**
+     * For any bytes that are currently buffered inside the stream, force them
+     * off the buffer.
+     *
+     * @throws Swift_IoException
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function commit()
+    {
+        // Nothing to do
+        return $this;
+    }
+
+    /**
+     * Attach $is to this stream.
+     * The stream acts as an observer, receiving all data that is written.
+     * All {@link write()} and {@link flushBuffers()} operations will be mirrored.
+     *
+     * @param Swift_InputByteStream $is
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function bind(Swift_InputByteStream $is)
+    {
+        // Don't have to mirror anything
+        $this->_bound[] = $is;
+
+        return $this;
+    }
+
+    /**
+     * Remove an already bound stream.
+     * If $is is not bound, no errors will be raised.
+     * If the stream currently has any buffered data it will be written to $is
+     * before unbinding occurs.
+     *
+     * @param Swift_InputByteStream $is
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function unbind(Swift_InputByteStream $is)
+    {
+        // Don't have to mirror anything
+        foreach ($this->_bound as $k => $stream) {
+            if ($stream === $is) {
+                unset($this->_bound[$k]);
+
+                return;
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * Flush the contents of the stream (empty it) and set the internal pointer
+     * to the beginning.
+     *
+     * @throws Swift_IoException
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function flushBuffers()
+    {
+        $this->reset();
+
+        return $this;
+    }
+
+    /**
+     * Set hash_algorithm, must be one of rsa-sha256 | rsa-sha1 defaults to rsa-sha256
+     *
+     * @param string $hash
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function setHashAlgorithm($hash)
+    {
+        $this->_hashAlgorithm = 'rsa-sha1';
+
+        return $this;
+    }
+
+    /**
+     * Set the canonicalization algorithm
+     *
+     * @param string $canon simple | nofws defaults to simple
+     * @return Swift_Signers_DomainKeysSigner
+     */
+    public function setCanon($canon)
+    {
+        if ($canon == 'nofws') {
+            $this->_canon = 'nofws';
+        } else {
+            $this->_canon = 'simple';
+        }
+
+        return $this;
+    }
+
+    /**
+     * Set the signer identity
+     *
+     * @param string $identity
+     * @return Swift_Signers_DomainKeySigner
+     */
+    public function setSignerIdentity($identity)
+    {
+        $this->_signerIdentity = $identity;
+
+        return $this;
+    }
+
+    /**
+     * Enable / disable the DebugHeaders
+     *
+     * @param bool    $debug
+     * @return Swift_Signers_DomainKeySigner
+     */
+    public function setDebugHeaders($debug)
+    {
+        $this->_debugHeaders = (bool) $debug;
+
+        return $this;
+    }
+
+    /**
+     * Start Body
+     *
+     */
+    public function startBody()
+    {
+    }
+
+    /**
+     * End Body
+     *
+     */
+    public function endBody()
+    {
+        $this->_endOfBody();
+    }
+
+    /**
+     * Returns the list of Headers Tampered by this plugin
+     *
+     * @return array
+     */
+    public function getAlteredHeaders()
+    {
+        if ($this->_debugHeaders) {
+            return array('DomainKey-Signature', 'X-DebugHash');
+        } else {
+            return array('DomainKey-Signature');
+        }
+    }
+
+    /**
+     * Adds an ignored Header
+     *
+     * @param string $header_name
+     * @return Swift_Signers_DomainKeySigner
+     */
+    public function ignoreHeader($header_name)
+    {
+        $this->_ignoredHeaders[strtolower($header_name)] = true;
+
+        return $this;
+    }
+
+    /**
+     * Set the headers to sign
+     *
+     * @param Swift_Mime_HeaderSet $headers
+     * @return Swift_Signers_DomainKeySigner
+     */
+    public function setHeaders(Swift_Mime_HeaderSet $headers)
+    {
+        $this->_startHash();
+        $this->_canonData = '';
+        // Loop through Headers
+        $listHeaders = $headers->listAll();
+        foreach ($listHeaders as $hName) {
+            // Check if we need to ignore Header
+            if (! isset($this->_ignoredHeaders[strtolower($hName)])) {
+                if ($headers->has($hName)) {
+                    $tmp = $headers->getAll($hName);
+                    foreach ($tmp as $header) {
+                        if ($header->getFieldBody() != '') {
+                            $this->_addHeader($header->toString());
+                            $this->_signedHeaders[] = $header->getFieldName();
+                        }
+                    }
+                }
+            }
+        }
+        $this->_endOfHeaders();
+
+        return $this;
+    }
+
+    /**
+     * Add the signature to the given Headers
+     *
+     * @param Swift_Mime_HeaderSet $headers
+     * @return Swift_Signers_DomainKeySigner
+     */
+    public function addSignature(Swift_Mime_HeaderSet $headers)
+    {
+        // Prepare the DomainKey-Signature Header
+        $params = array('a' => $this->_hashAlgorithm, 'b' => chunk_split(base64_encode($this->_getEncryptedHash()), 73, " "), 'c' => $this->_canon, 'd' => $this->_domainName, 'h' => implode(': ', $this->_signedHeaders), 'q' => 'dns', 's' => $this->_selector);
+        $string = '';
+        foreach ($params as $k => $v) {
+            $string .= $k . '=' . $v . '; ';
+        }
+        $string = trim($string);
+        $headers->addTextHeader('DomainKey-Signature', $string);
+
+        return $this;
+    }
+
+    /* Private helpers */
+
+    protected function _addHeader($header)
+    {
+        switch ($this->_canon) {
+            case 'nofws' :
+                // Prepare Header and cascade
+                $exploded = explode(':', $header, 2);
+                $name = strtolower(trim($exploded[0]));
+                $value = str_replace("\r\n", "", $exploded[1]);
+                $value = preg_replace("/[ \t][ \t]+/", " ", $value);
+                $header = $name . ":" . trim($value) . "\r\n";
+            case 'simple' :
+                // Nothing to do
+        }
+        $this->_addToHash($header);
+    }
+
+    protected function _endOfHeaders()
+    {
+        $this->_bodyCanonEmptyCounter = 1;
+    }
+
+    protected function _canonicalizeBody($string)
+    {
+        $len = strlen($string);
+        $canon = '';
+        $nofws = ($this->_canon == "nofws");
+        for ($i = 0; $i < $len; ++$i) {
+            if ($this->_bodyCanonIgnoreStart > 0) {
+                --$this->_bodyCanonIgnoreStart;
+                continue;
+            }
+            switch ($string[$i]) {
+                case "\r" :
+                    $this->_bodyCanonLastChar = "\r";
+                    break;
+                case "\n" :
+                    if ($this->_bodyCanonLastChar == "\r") {
+                        if ($nofws) {
+                            $this->_bodyCanonSpace = false;
+                        }
+                        if ($this->_bodyCanonLine == '') {
+                            ++$this->_bodyCanonEmptyCounter;
+                        } else {
+                            $this->_bodyCanonLine = '';
+                            $canon .= "\r\n";
+                        }
+                    } else {
+                        // Wooops Error
+                        throw new Swift_SwiftException('Invalid new line sequence in mail found \n without preceding \r');
+                    }
+                    break;
+                case " " :
+                case "\t" :
+                case "\x09": //HTAB
+                    if ($nofws) {
+                        $this->_bodyCanonSpace = true;
+                        break;
+                    }
+                default :
+                    if ($this->_bodyCanonEmptyCounter > 0) {
+                        $canon .= str_repeat("\r\n", $this->_bodyCanonEmptyCounter);
+                        $this->_bodyCanonEmptyCounter = 0;
+                    }
+                    $this->_bodyCanonLine .= $string[$i];
+                    $canon .= $string[$i];
+            }
+        }
+        $this->_addToHash($canon);
+    }
+
+    protected function _endOfBody()
+    {
+        if (strlen($this->_bodyCanonLine) > 0) {
+            $this->_addToHash("\r\n");
+        }
+        $this->_hash = hash_final($this->_hashHandler, true);
+    }
+
+    private function _addToHash($string)
+    {
+        $this->_canonData .= $string;
+        hash_update($this->_hashHandler, $string);
+    }
+
+    private function _startHash()
+    {
+        // Init
+        switch ($this->_hashAlgorithm) {
+            case 'rsa-sha1' :
+                $this->_hashHandler = hash_init('sha1');
+                break;
+        }
+        $this->_canonLine = '';
+    }
+
+    /**
+     * @throws Swift_SwiftException
+     * @return string
+     */
+    private function _getEncryptedHash()
+    {
+        $signature = '';
+        $pkeyId=openssl_get_privatekey($this->_privateKey);
+        if (!$pkeyId) {
+            throw new Swift_SwiftException('Unable to load DomainKey Private Key ['.openssl_error_string().']');
+        }
+        if (openssl_sign($this->_canonData, $signature, $pkeyId, OPENSSL_ALGO_SHA1)) {
+            return $signature;
+        }
+        throw new Swift_SwiftException('Unable to sign DomainKey Hash  ['.openssl_error_string().']');
+    }
+}