48 lines
1.3 KiB
PHP
48 lines
1.3 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* A caching proxy for retrieving version information from phpmyadmin.net
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*
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* @package PhpMyAdmin
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*/
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// Sets up the session
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define('PMA_MINIMUM_COMMON', true);
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require_once 'libraries/common.inc.php';
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// Get response text from phpmyadmin.net or from the session
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// Update cache every 6 hours
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if (isset($_SESSION['cache']['version_check'])
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&& time() < $_SESSION['cache']['version_check']['timestamp'] + 3600 * 6
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) {
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$save = false;
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$response = $_SESSION['cache']['version_check']['response'];
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} else {
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$save = true;
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$file = 'http://www.phpmyadmin.net/home_page/version.json';
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if (ini_get('allow_url_fopen')) {
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$response = file_get_contents($file);
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} else if (function_exists('curl_init')) {
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$curl_handle = curl_init($file);
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curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
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$response = curl_exec();
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}
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}
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// Always send the correct headers
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header('Content-type: application/json; charset=UTF-8');
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// Save and forward the response only if in valid format
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$data = json_decode($response);
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if (is_object($data) && strlen($data->version) && strlen($data->date)) {
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if ($save) {
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$_SESSION['cache']['version_check'] = array(
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'response' => $response,
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'timestamp' => time()
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);
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}
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echo $response;
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}
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?>
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