/usr/share/horde/ingo/lib/Script/Sieve/Test/Relational.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 Todd Merritt <tmerritt@email.arizona.edu>
* @author Jan Schneider <jan@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/apache ASL
* @package Ingo
*/
/**
* The Ingo_Script_Sieve_Test_Relational class represents a relational test.
*
* @author Todd Merritt <tmerritt@email.arizona.edu>
* @author Jan Schneider <jan@horde.org>
* @category Horde
* @license http://www.horde.org/licenses/apache ASL
* @package Ingo
*/
class Ingo_Script_Sieve_Test_Relational extends Ingo_Script_Sieve_Test
{
/**
* Constructor.
*
* @param array $vars Any required parameters.
*/
public function __construct($vars = array())
{
$this->_vars['comparison'] = isset($vars['comparison'])
? $vars['comparison']
: '';
$this->_vars['headers'] = isset($vars['headers'])
? $vars['headers']
: '';
$this->_vars['value'] = isset($vars['value'])
? $vars['value']
: 0;
}
/**
* Returns a script snippet representing this rule and any sub-rules.
*
* @return string A Sieve script snippet.
*/
public function generate()
{
$code = 'header :value "' .
$this->_vars['comparison'] . '" ' .
':comparator "i;ascii-numeric" ';
$headers = preg_split('(\r\n|\n|\r)', $this->_vars['headers']);
$header_count = count($headers);
if ($header_count > 1) {
$code .= "[";
$headerstr = '';
foreach ($headers as $val) {
$headerstr .= (empty($headerstr) ? '"' : ', "') .
Ingo_Script_Sieve::escapeString($val) . '"';
}
$code .= $headerstr . '] ';
$headerstr = '[' . $headerstr . ']';
} elseif ($header_count == 1) {
$code .= '"' . Ingo_Script_Sieve::escapeString($headers[0]) . '" ';
$headerstr = Ingo_Script_Sieve::escapeString($headers[0]);
}
$code .= '["' . $this->_vars['value'] . '"]';
// Add workarounds for negative numbers - works only if the comparison
// value is positive. Sieve doesn't support comparisons of negative
// numbers at all so this is the best we can do.
switch ($this->_vars['comparison']) {
case 'gt':
case 'ge':
case 'eq':
// Greater than, greater or equal, equal: number must be
// non-negative.
return 'allof ( not header :comparator "i;ascii-casemap" :contains "'
. $headerstr . '" "-", ' . $code . ' )';
case 'lt':
case 'le':
case 'ne':
// Less than, less or equal, nonequal: also match negative numbers
return 'anyof ( header :comparator "i;ascii-casemap" :contains "'
. $headerstr . '" "-", ' . $code . ' )';
}
}
/**
* Checks if the rule parameters are valid.
*
* @return boolean|string True if this rule is valid, an error message
* otherwise.
*/
public function check()
{
$headers = preg_split('(\r\n|\n|\r)', $this->_vars['headers']);
return $headers ? true : _("No headers specified");
}
/**
* Returns a list of sieve extensions required for this rule and any
* sub-rules.
*
* @return array A Sieve extension list.
*/
public function requires()
{
return array('relational', 'comparator-i;ascii-numeric');
}
}
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