mirror of
https://github.com/silverstripe/silverstripe-externallinks.git
synced 2024-10-22 17:05:44 +02:00
50 lines
1.1 KiB
PHP
50 lines
1.1 KiB
PHP
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<?php
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/**
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* Check links using curl
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*/
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class CurlLinkChecker implements LinkChecker {
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/**
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* Return cache
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*
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* @return Zend_Cache_Frontend
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*/
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protected function getCache() {
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return SS_Cache::factory(
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__CLASS__,
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'Output',
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array('automatic_serialization' => true)
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);
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}
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/**
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* Determine the http status code for a given link
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*
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* @param string $href URL to check
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* @return int HTTP status code, or null if not checkable (not a link)
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*/
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protected function checkLink($href) {
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// Skip non-external links
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if(!preg_match('/^https?[^:]*:\/\//', $href)) return null;
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// Check if we have a cached result
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$cacheKey = md5($href);
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$result = $this->getCache()->load($cacheKey);
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if($result !== false) return $result;
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// No cached result so just request
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$handle = curl_init($href);
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curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
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curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, 5);
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curl_setopt($handle, CURLOPT_TIMEOUT, 10);
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curl_exec($handle);
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$httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);
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curl_close($handle);
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// Cache result
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$this->getCache()->save($httpCode, $cacheKey);
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return $httpCode;
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}
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}
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