diff options
Diffstat (limited to 'vendor/swiftmailer/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php')
-rw-r--r-- | vendor/swiftmailer/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/vendor/swiftmailer/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php b/vendor/swiftmailer/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php new file mode 100644 index 00000000..818e9af6 --- /dev/null +++ b/vendor/swiftmailer/classes/Swift/Mime/ContentEncoder/PlainContentEncoder.php @@ -0,0 +1,163 @@ +<?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 + ); + } +} |