Add Swift Mailer to send mails

htdocs/includes/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/NativeQpContentEncoder.php

@@ -0,0 +1,123 @@
+<?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.
+ */
+
+/**
+ * Handles Quoted Printable (QP) Transfer Encoding in Swift Mailer using the PHP core function.
+ *
+ * @author Lars Strojny
+ */
+class Swift_Mime_ContentEncoder_NativeQpContentEncoder implements Swift_Mime_ContentEncoder
+{
+    /**
+     * @var null|string
+     */
+    private $charset;
+
+    /**
+     * @param null|string $charset
+     */
+    public function __construct($charset = null)
+    {
+        $this->charset = $charset ? $charset : 'utf-8';
+    }
+
+    /**
+     * Notify this observer that the entity's charset has changed.
+     *
+     * @param string $charset
+     */
+    public function charsetChanged($charset)
+    {
+        $this->charset = $charset;
+    }
+
+    /**
+     * Encode $in to $out.
+     *
+     * @param Swift_OutputByteStream $os              to read from
+     * @param Swift_InputByteStream  $is              to write to
+     * @param int                    $firstLineOffset
+     * @param int                    $maxLineLength   0 indicates the default length for this encoding
+     *
+     * @throws RuntimeException
+     */
+    public function encodeByteStream(Swift_OutputByteStream $os, Swift_InputByteStream $is, $firstLineOffset = 0, $maxLineLength = 0)
+    {
+        if ($this->charset !== 'utf-8') {
+            throw new RuntimeException(
+                sprintf('Charset "%s" not supported. NativeQpContentEncoder only supports "utf-8"', $this->charset));
+        }
+
+        $string = '';
+
+        while (false !== $bytes = $os->read(8192)) {
+            $string .= $bytes;
+        }
+
+        $is->write($this->encodeString($string));
+    }
+
+    /**
+     * Get the MIME name of this content encoding scheme.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return 'quoted-printable';
+    }
+
+    /**
+     * Encode a given string to produce an encoded string.
+     *
+     * @param string $string
+     * @param int    $firstLineOffset if first line needs to be shorter
+     * @param int    $maxLineLength   0 indicates the default length for this encoding
+     *
+     * @throws RuntimeException
+     *
+     * @return string
+     */
+    public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0)
+    {
+        if ($this->charset !== 'utf-8') {
+            throw new RuntimeException(
+                sprintf('Charset "%s" not supported. NativeQpContentEncoder only supports "utf-8"', $this->charset));
+        }
+
+        return $this->_standardize(quoted_printable_encode($string));
+    }
+
+    /**
+     * Make sure CRLF is correct and HT/SPACE are in valid places.
+     *
+     * @param string $string
+     *
+     * @return string
+     */
+    protected function _standardize($string)
+    {
+        // transform CR or LF to CRLF
+        $string = preg_replace('~=0D(?!=0A)|(?<!=0D)=0A~', '=0D=0A', $string);
+        // transform =0D=0A to CRLF
+        $string = str_replace(array("\t=0D=0A", ' =0D=0A', '=0D=0A'), array("=09\r\n", "=20\r\n", "\r\n"), $string);
+
+        switch ($end = ord(substr($string, -1))) {
+            case 0x09:
+                $string = substr_replace($string, '=09', -1);
+                break;
+            case 0x20:
+                $string = substr_replace($string, '=20', -1);
+                break;
+        }
+
+        return $string;
+    }
+}