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226 daniel-mar 1 
<?php
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# if (!interface_exists('VolcanoSearchProvider')) throw new Exception('Required interface "VolcanoSearchProvider" not found.');
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# if (!class_exists('VolcanoDB')) throw new Exception('Required class "VolcanoDB" not found.');
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require_once __DIR__ . '/../../core/VolcanoSearchProvider.class.php';
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require_once __DIR__ . '/../../includes/ipv4_functions.inc.php';
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class VolcanoSearchIPv4 implements VolcanoSearchProvider {
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        public static function checkId($id) {
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                return self::strEqual($id, 'ipv4', true); // is always case insensitive
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        }
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        public static function calcDistance($candidate, $searchterm) {
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                return ipv4_distance($searchterm, $candidate); // TODO: richtig rum?
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        }
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        protected static function strEqual($str1, $str2, $caseInsensitive = false) {
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                if ($caseInsensitive) {
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                        return strtolower($str1) == strtolower($str2);
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                } else {
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                        return $str1 == $str2;
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                }
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        }
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}
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require_once __DIR__ . '/../../core/1_VolcanoDB.class.php';
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VolcanoDB::registerSearchProvider(new VolcanoSearchIPv4());
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# --- TEST
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/*
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$x = new VolcanoSearchIPv4();
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assert($x->calcDistance('192.168.0.0/16',  '192.168.64.0/18') ===  2);
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assert($x->calcDistance('192.168.64.0/18', '192.168.64.0/18') ===  0);
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assert($x->calcDistance('192.168.64.0/20', '192.168.64.0/18') === -2);
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assert($x->calcDistance('192.168.69.200/31', '192.168.69.202/31') === false);
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assert($x->calcDistance('192.168.69.200/32', '192.168.69.201/32') === false);
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assert($x->calcDistance('192.168.69.200',    '192.168.69.201')    === false);
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assert($x->calcDistance('95.211.38.42/32', '95.211.38.42') === 0);
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assert($x->calcDistance('95.211.38.42', '95.211.38.42/32') === 0);
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*/