Current File : //backups/router/usr/local/opnsense/mvc/app/models/OPNsense/Base/Constraints/UniqueConstraint.php
<?php
/**
* Copyright (C) 2016 Deciso B.V.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
namespace OPNsense\Base\Constraints;
/**
* Class UniqueConstraint, add a unique constraint to this field and optional additional fields.
* @package OPNsense\Base\Constraints
*/
class UniqueConstraint extends BaseConstraint
{
private static $itemmap = [];
private static $validationSequence = 0;
/**
* Executes validation
*
* @param $validator
* @param string $attribute
* @return boolean
*/
public function validate($validator, $attribute): bool
{
$node = $this->getOption('node');
$fieldSeparator = chr(10) . chr(0);
if ($node) {
if (!$node->isRequired() && $node->isEmpty()) {
return true;
}
$mdl = $node->getParentModel();
if ($mdl === null || $mdl->getValidationSequence() != static::$validationSequence) {
// reset cache, new validation round.
static::$validationSequence = $mdl !== null ? $mdl->getValidationSequence() : 0;
static::$itemmap = [];
}
$keyFields = array_unique(
array_merge(
[$node->getInternalXMLTagName()],
$this->getOptionValueList('addFields')
)
);
asort($keyFields);
$nodeKey = implode('|', $keyFields);
$parentNode = $node->getParentNode();
// calculate the key for this node
if (!isset(static::$itemmap[$nodeKey])) {
static::$itemmap[$nodeKey] = [];
$level = 0;
// dive into parent
$containerNode = $node;
while ($containerNode != null && !$containerNode->isArrayType()) {
$containerNode = $containerNode->getParentNode();
$level++;
}
if ($containerNode != null && $level == 2) {
// when an ArrayField is found in range, traverse nodes and compare keys
foreach ($containerNode->iterateItems() as $item) {
$itemValue = '';
foreach ($keyFields as $field) {
$itemValue .= $fieldSeparator . $item->$field;
}
if (empty(static::$itemmap[$nodeKey][$itemValue])) {
static::$itemmap[$nodeKey][$itemValue] = 0;
}
static::$itemmap[$nodeKey][$itemValue]++;
}
}
}
$nodeValue = '';
foreach ($keyFields as $field) {
$nodeValue .= $fieldSeparator . $parentNode->$field;
}
if ((static::$itemmap[$nodeKey][$nodeValue] ?? 0) > 1) {
$this->appendMessage($validator, $attribute);
return false;
}
}
return true;
}
}
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