/usr/share/horde/ingo/lib/Script/Sieve/Test/Header.php is in php-horde-ingo 3.2.8-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Copyright 2012-2016 Horde LLC (http://www.horde.org/)
*
* See the enclosed file LICENSE for license information (ASL). If you
* did not receive this file, see http://www.horde.org/licenses/apache.
*
* @author Mike Cochrane <mike@graftonhall.co.nz>
* @author Jan Schneider <jan@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/apache ASL
* @package Ingo
*/
/**
* The Ingo_Script_Sieve_Test_Header class represents a test on the contents
* of one or more headers in a message.
*
* @author Mike Cochrane <mike@graftonhall.co.nz>
* @author Jan Schneider <jan@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/apache ASL
* @package Ingo
*/
class Ingo_Script_Sieve_Test_Header extends Ingo_Script_Sieve_Test
{
/**
* Constructor.
*
* @param array $vars Any required parameters.
*/
public function __construct($vars = array())
{
$this->_vars['headers'] = isset($vars['headers'])
? $vars['headers']
: 'Subject';
$this->_vars['comparator'] = isset($vars['comparator'])
? $vars['comparator']
: 'i;ascii-casemap';
$this->_vars['match-type'] = isset($vars['match-type'])
? $vars['match-type']
: ':is';
$this->_vars['strings'] = isset($vars['strings'])
? $vars['strings']
: '';
}
/**
* Checks if the rule parameters are valid.
*
* @return boolean|string True if this rule is valid, an error message
* otherwise.
*/
public function check()
{
return preg_split('((?<!\\\)\,|\r\n|\n|\r)', $this->_vars['headers']) &&
preg_split('((?<!\\\)\,|\r\n|\n|\r)', $this->_vars['strings']);
}
/**
* Returns a script snippet representing this rule and any sub-rules.
*
* @return string A Sieve script snippet.
*/
public function generate()
{
$code = 'header ' .
':comparator "' . $this->_vars['comparator'] . '" ' .
$this->_vars['match-type'] . ' ';
$headers = preg_split('(\r\n|\n|\r)', $this->_vars['headers']);
$headers = array_filter($headers);
if (count($headers) > 1) {
$code .= "[";
$headerstr = '';
foreach ($headers as $header) {
$headerstr .= empty($headerstr) ? '"' : ', "';
$headerstr .= Ingo_Script_Sieve::escapeString($header, $this->_vars['match-type'] == ':regex') . '"';
}
$code .= $headerstr . "] ";
} elseif (count($headers) == 1) {
$code .= '"' . $headers[0] . '" ';
} else {
return _("No headers specified");
}
$strings = preg_split('(\r\n|\n|\r)', $this->_vars['strings']);
$strings = array_filter($strings);
if (count($strings) > 1) {
$code .= "[";
$stringlist = '';
foreach ($strings as $str) {
$stringlist .= empty($stringlist) ? '"' : ', "';
$stringlist .= Ingo_Script_Sieve::escapeString($str, $this->_vars['match-type'] == ':regex') . '"';
}
$code .= $stringlist . "] ";
} elseif (count($strings) == 1) {
$code .= '"' . Ingo_Script_Sieve::escapeString(reset($strings), $this->_vars['match-type'] == ':regex') . '" ';
} else {
return _("No strings specified");
}
return $code;
}
/**
* Returns a list of sieve extensions required for this rule and any
* sub-rules.
*
* @return array A Sieve extension list.
*/
public function requires()
{
return ($this->_vars['match-type'] == ':regex')
? array('regex')
: array();
}
}
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