From 8df3db566a3a937b45ebf11adb90d265e6f5e2d4 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Sun, 17 Nov 2019 20:45:02 +0100
Subject: initial checking of customized version 1.0rc9

---
 .../Swift/Mime/ContentEncoder/QpContentEncoder.php | 134 +++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/QpContentEncoder.php

(limited to 'vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/QpContentEncoder.php')

diff --git a/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/QpContentEncoder.php b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/QpContentEncoder.php
new file mode 100644
index 0000000..5cc907b
--- /dev/null
+++ b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/QpContentEncoder.php
@@ -0,0 +1,134 @@
+<?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.
+ *
+ * @author Chris Corbyn
+ */
+class Swift_Mime_ContentEncoder_QpContentEncoder extends Swift_Encoder_QpEncoder implements Swift_Mime_ContentEncoder
+{
+    protected $_dotEscape;
+
+    /**
+     * Creates a new QpContentEncoder for the given CharacterStream.
+     *
+     * @param Swift_CharacterStream $charStream to use for reading characters
+     * @param Swift_StreamFilter    $filter     if canonicalization should occur
+     * @param bool                  $dotEscape  if dot stuffing workaround must be enabled
+     */
+    public function __construct(Swift_CharacterStream $charStream, Swift_StreamFilter $filter = null, $dotEscape = false)
+    {
+        $this->_dotEscape = $dotEscape;
+        parent::__construct($charStream, $filter);
+    }
+
+    public function __sleep()
+    {
+        return array('_charStream', '_filter', '_dotEscape');
+    }
+
+    protected function getSafeMapShareId()
+    {
+        return get_class($this).($this->_dotEscape ? '.dotEscape' : '');
+    }
+
+    protected function initSafeMap()
+    {
+        parent::initSafeMap();
+        if ($this->_dotEscape) {
+            /* Encode . as =2e for buggy remote servers */
+            unset($this->_safeMap[0x2e]);
+        }
+    }
+
+    /**
+     * Encode stream $in to stream $out.
+     *
+     * QP encoded strings have a maximum line length of 76 characters.
+     * If the first line needs to be shorter, indicate the difference with
+     * $firstLineOffset.
+     *
+     * @param Swift_OutputByteStream $os              output stream
+     * @param Swift_InputByteStream  $is              input stream
+     * @param int                    $firstLineOffset
+     * @param int                    $maxLineLength
+     */
+    public function encodeByteStream(Swift_OutputByteStream $os, Swift_InputByteStream $is, $firstLineOffset = 0, $maxLineLength = 0)
+    {
+        if ($maxLineLength > 76 || $maxLineLength <= 0) {
+            $maxLineLength = 76;
+        }
+
+        $thisLineLength = $maxLineLength - $firstLineOffset;
+
+        $this->_charStream->flushContents();
+        $this->_charStream->importByteStream($os);
+
+        $currentLine = '';
+        $prepend = '';
+        $size = $lineLen = 0;
+
+        while (false !== $bytes = $this->_nextSequence()) {
+            // If we're filtering the input
+            if (isset($this->_filter)) {
+                // If we can't filter because we need more bytes
+                while ($this->_filter->shouldBuffer($bytes)) {
+                    // Then collect bytes into the buffer
+                    if (false === $moreBytes = $this->_nextSequence(1)) {
+                        break;
+                    }
+
+                    foreach ($moreBytes as $b) {
+                        $bytes[] = $b;
+                    }
+                }
+                // And filter them
+                $bytes = $this->_filter->filter($bytes);
+            }
+
+            $enc = $this->_encodeByteSequence($bytes, $size);
+
+            $i = strpos($enc, '=0D=0A');
+            $newLineLength = $lineLen + ($i === false ? $size : $i);
+
+            if ($currentLine && $newLineLength >= $thisLineLength) {
+                $is->write($prepend.$this->_standardize($currentLine));
+                $currentLine = '';
+                $prepend = "=\r\n";
+                $thisLineLength = $maxLineLength;
+                $lineLen = 0;
+            }
+
+            $currentLine .= $enc;
+
+            if ($i === false) {
+                $lineLen += $size;
+            } else {
+                // 6 is the length of '=0D=0A'.
+                $lineLen = $size - strrpos($enc, '=0D=0A') - 6;
+            }
+        }
+        if (strlen($currentLine)) {
+            $is->write($prepend.$this->_standardize($currentLine));
+        }
+    }
+
+    /**
+     * Get the name of this encoding scheme.
+     * Returns the string 'quoted-printable'.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return 'quoted-printable';
+    }
+}
-- 
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