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

---
 .../Mime/ContentEncoder/PlainContentEncoder.php    | 162 +++++++++++++++++++++
 1 file changed, 162 insertions(+)
 create mode 100644 vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php

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

diff --git a/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php
new file mode 100644
index 0000000..219f482
--- /dev/null
+++ b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php
@@ -0,0 +1,162 @@
+<?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 binary/7/8-bit Transfer Encoding in Swift Mailer.
+ *
+ * @author Chris Corbyn
+ */
+class Swift_Mime_ContentEncoder_PlainContentEncoder implements Swift_Mime_ContentEncoder
+{
+    /**
+     * The name of this encoding scheme (probably 7bit or 8bit).
+     *
+     * @var string
+     */
+    private $_name;
+
+    /**
+     * True if canonical transformations should be done.
+     *
+     * @var bool
+     */
+    private $_canonical;
+
+    /**
+     * Creates a new PlainContentEncoder with $name (probably 7bit or 8bit).
+     *
+     * @param string $name
+     * @param bool   $canonical If canonicalization transformation should be done.
+     */
+    public function __construct($name, $canonical = false)
+    {
+        $this->_name = $name;
+        $this->_canonical = $canonical;
+    }
+
+    /**
+     * Encode a given string to produce an encoded string.
+     *
+     * @param string $string
+     * @param int    $firstLineOffset ignored
+     * @param int    $maxLineLength   - 0 means no wrapping will occur
+     *
+     * @return string
+     */
+    public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0)
+    {
+        if ($this->_canonical) {
+            $string = $this->_canonicalize($string);
+        }
+
+        return $this->_safeWordWrap($string, $maxLineLength, "\r\n");
+    }
+
+    /**
+     * Encode stream $in to stream $out.
+     *
+     * @param Swift_OutputByteStream $os
+     * @param Swift_InputByteStream  $is
+     * @param int                    $firstLineOffset ignored
+     * @param int                    $maxLineLength   optional, 0 means no wrapping will occur
+     */
+    public function encodeByteStream(Swift_OutputByteStream $os, Swift_InputByteStream $is, $firstLineOffset = 0, $maxLineLength = 0)
+    {
+        $leftOver = '';
+        while (false !== $bytes = $os->read(8192)) {
+            $toencode = $leftOver.$bytes;
+            if ($this->_canonical) {
+                $toencode = $this->_canonicalize($toencode);
+            }
+            $wrapped = $this->_safeWordWrap($toencode, $maxLineLength, "\r\n");
+            $lastLinePos = strrpos($wrapped, "\r\n");
+            $leftOver = substr($wrapped, $lastLinePos);
+            $wrapped = substr($wrapped, 0, $lastLinePos);
+
+            $is->write($wrapped);
+        }
+        if (strlen($leftOver)) {
+            $is->write($leftOver);
+        }
+    }
+
+    /**
+     * Get the name of this encoding scheme.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->_name;
+    }
+
+    /**
+     * Not used.
+     */
+    public function charsetChanged($charset)
+    {
+    }
+
+    /**
+     * A safer (but weaker) wordwrap for unicode.
+     *
+     * @param string $string
+     * @param int    $length
+     * @param string $le
+     *
+     * @return string
+     */
+    private function _safeWordwrap($string, $length = 75, $le = "\r\n")
+    {
+        if (0 >= $length) {
+            return $string;
+        }
+
+        $originalLines = explode($le, $string);
+
+        $lines = array();
+        $lineCount = 0;
+
+        foreach ($originalLines as $originalLine) {
+            $lines[] = '';
+            $currentLine = &$lines[$lineCount++];
+
+            //$chunks = preg_split('/(?<=[\ \t,\.!\?\-&\+\/])/', $originalLine);
+            $chunks = preg_split('/(?<=\s)/', $originalLine);
+
+            foreach ($chunks as $chunk) {
+                if (0 != strlen($currentLine)
+                    && strlen($currentLine.$chunk) > $length) {
+                    $lines[] = '';
+                    $currentLine = &$lines[$lineCount++];
+                }
+                $currentLine .= $chunk;
+            }
+        }
+
+        return implode("\r\n", $lines);
+    }
+
+    /**
+     * Canonicalize string input (fix CRLF).
+     *
+     * @param string $string
+     *
+     * @return string
+     */
+    private function _canonicalize($string)
+    {
+        return str_replace(
+            array("\r\n", "\r", "\n"),
+            array("\n", "\n", "\r\n"),
+            $string
+            );
+    }
+}
-- 
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