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<?php
/**
* Copyright 2012-2017 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_Exists class represents a test for the
* existence 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_Exists 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']
: '';
}
/**
* 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'])
? true
: _("No headers specified");
}
/**
* Returns a script snippet representing this rule and any sub-rules.
*
* @return string A Sieve script snippet.
*/
public function generate()
{
$code = 'exists ';
$headers = preg_split('(\r\n|\n|\r)', $this->_vars['headers']);
if (count($headers) > 1) {
$code .= "[";
$headerstr = '';
foreach ($headers as $header) {
$headerstr .= (empty($headerstr) ? '"' : ', "') .
Ingo_Script_Sieve::escapeString($header) . '"';
}
$code .= $headerstr . "] ";
} elseif (count($headers) == 1) {
$code .= '"' . Ingo_Script_Sieve::escapeString($headers[0]) . '" ';
} else {
return "**error** No Headers Specified";
}
return $code;
}
}
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