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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:39:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:39:39 +0000 |
commit | 8ca6cc32b2c789a3149861159ad258f2cb9491e3 (patch) | |
tree | 2492de6f1528dd44eaa169a5c1555026d9cb75ec /library/vendor/Zend/Mail/Header/HeaderValue.php | |
parent | Initial commit. (diff) | |
download | icingaweb2-8ca6cc32b2c789a3149861159ad258f2cb9491e3.tar.xz icingaweb2-8ca6cc32b2c789a3149861159ad258f2cb9491e3.zip |
Adding upstream version 2.11.4.upstream/2.11.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/vendor/Zend/Mail/Header/HeaderValue.php')
-rw-r--r-- | library/vendor/Zend/Mail/Header/HeaderValue.php | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/library/vendor/Zend/Mail/Header/HeaderValue.php b/library/vendor/Zend/Mail/Header/HeaderValue.php new file mode 100644 index 0000000..7828e8b --- /dev/null +++ b/library/vendor/Zend/Mail/Header/HeaderValue.php @@ -0,0 +1,135 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Mail + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id$ + */ + + +/** + * @category Zend + * @package Zend_Mail + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +final class Zend_Mail_Header_HeaderValue +{ + /** + * No public constructor. + */ + private function __construct() + { + } + + /** + * Filter the header value according to RFC 2822 + * + * @see http://www.rfc-base.org/txt/rfc-2822.txt (section 2.2) + * @param string $value + * @return string + */ + public static function filter($value) + { + $result = ''; + $tot = strlen($value); + + // Filter for CR and LF characters, leaving CRLF + WSP sequences for + // Long Header Fields (section 2.2.3 of RFC 2822) + for ($i = 0; $i < $tot; $i += 1) { + $ord = ord($value[$i]); + if (($ord < 32 || $ord > 126) + && $ord !== 13 + ) { + continue; + } + + if ($ord === 13) { + if ($i + 2 >= $tot) { + continue; + } + + $lf = ord($value[$i + 1]); + $sp = ord($value[$i + 2]); + + if ($lf !== 10 || $sp !== 32) { + continue; + } + + $result .= "\r\n "; + $i += 2; + continue; + } + + $result .= $value[$i]; + } + + return $result; + } + + /** + * Determine if the header value contains any invalid characters. + * + * @see http://www.rfc-base.org/txt/rfc-2822.txt (section 2.2) + * @param string $value + * @return bool + */ + public static function isValid($value) + { + $tot = strlen($value); + for ($i = 0; $i < $tot; $i += 1) { + $ord = ord($value[$i]); + if (($ord < 32 || $ord > 126) + && $ord !== 13 + ) { + return false; + } + + if ($ord === 13) { + if ($i + 2 >= $tot) { + return false; + } + + $lf = ord($value[$i + 1]); + $sp = ord($value[$i + 2]); + + if ($lf !== 10 || $sp !== 32) { + return false; + } + + $i += 2; + } + } + + return true; + } + + /** + * Assert that the header value is valid. + * + * Raises an exception if invalid. + * + * @param string $value + * @throws Exception\RuntimeException + * @return void + */ + public static function assertValid($value) + { + if (! self::isValid($value)) { + throw new Zend_Mail_Exception('Invalid header value detected'); + } + } +} |