/misc/proxy-hide-piwik-url/piwik.php
PHP | 93 lines | 56 code | 12 blank | 25 comment | 10 complexity | 89e6c03349f16e3d288f0d65b093510a MD5 | raw file
Possible License(s): LGPL-3.0, JSON, MIT, GPL-3.0, LGPL-2.1, GPL-2.0, AGPL-1.0, BSD-2-Clause, BSD-3-Clause
- <?php
- /**
- * Piwik - free/libre analytics platform
- * Piwik Proxy Hide URL
- *
- * @link http://piwik.org/faq/how-to/#faq_132
- * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
- */
- // -----
- // Important: read the instructions in README.md or at:
- // https://github.com/piwik/piwik/tree/master/misc/proxy-hide-piwik-url#piwik-proxy-hide-url
- // -----
- // Edit the line below, and replace http://your-piwik-domain.example.org/piwik/
- // with your Piwik URL ending with a slash.
- // This URL will never be revealed to visitors or search engines.
- $PIWIK_URL = 'http://your-piwik-domain.example.org/piwik/';
- // Edit the line below, and replace xyz by the token_auth for the user "UserTrackingAPI"
- // which you created when you followed instructions above.
- $TOKEN_AUTH = 'xyz';
- // Maximum time, in seconds, to wait for the Piwik server to return the 1*1 GIF
- $timeout = 5;
- // DO NOT MODIFY BELOW
- // ---------------------------
- // 1) PIWIK.JS PROXY: No _GET parameter, we serve the JS file
- if (empty($_GET)) {
- $modifiedSince = false;
- if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
- $modifiedSince = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
- // strip any trailing data appended to header
- if (false !== ($semicolon = strpos($modifiedSince, ';'))) {
- $modifiedSince = strtotime(substr($modifiedSince, 0, $semicolon));
- }
- }
- // Re-download the piwik.js once a day maximum
- $lastModified = time() - 86400;
- // set HTTP response headers
- header('Vary: Accept-Encoding');
- // Returns 304 if not modified since
- if (!empty($modifiedSince) && $modifiedSince < $lastModified) {
- header(sprintf("%s 304 Not Modified", $_SERVER['SERVER_PROTOCOL']));
- } else {
- header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
- @header('Content-Type: application/javascript; charset=UTF-8');
- if ($piwikJs = file_get_contents($PIWIK_URL . 'piwik.js')) {
- echo $piwikJs;
- } else {
- header($_SERVER['SERVER_PROTOCOL'] . '505 Internal server error');
- }
- }
- exit;
- }
- @ini_set('magic_quotes_runtime', 0);
- // 2) PIWIK.PHP PROXY: GET parameters found, this is a tracking request, we redirect it to Piwik
- $url = sprintf("%spiwik.php?cip=%s&token_auth=%s&", $PIWIK_URL, getVisitIp(), $TOKEN_AUTH);
- foreach ($_GET as $key => $value) {
- $url .= $key . '=' . urlencode($value) . '&';
- }
- header("Content-Type: image/gif");
- $stream_options = array('http' => array(
- 'user_agent' => @$_SERVER['HTTP_USER_AGENT'],
- 'header' => sprintf("Accept-Language: %s\r\n", @str_replace(array("\n", "\t", "\r"), "", $_SERVER['HTTP_ACCEPT_LANGUAGE'])),
- 'timeout' => $timeout
- ));
- $ctx = stream_context_create($stream_options);
- echo file_get_contents($url, 0, $ctx);
- function getVisitIp()
- {
- $matchIp = '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/';
- $ipKeys = array(
- 'HTTP_X_FORWARDED_FOR',
- 'HTTP_CLIENT_IP',
- 'HTTP_CF_CONNECTING_IP',
- );
- foreach($ipKeys as $ipKey) {
- if (isset($_SERVER[$ipKey])
- && preg_match($matchIp, $_SERVER[$ipKey])) {
- return $_SERVER[$ipKey];
- }
- }
- return @$_SERVER['REMOTE_ADDR'];
- }