function delegate($action)
{
//cleanCache();
$ds = dataSetName($_GET);
$data = loadFromCache($ds);
if ($data) {
echo $data;
exit(0);
}
switch ($action) {
//Twitter
case 'topTweets':
$data = topTweets();
break;
//Google Analytics
//Google Analytics
case 'chart':
$data = getChart();
break;
//Events
//Events
case 'events':
$data = getEvents();
break;
//Statistics
//Statistics
case 'stats':
$data = getStatistics();
break;
//Social badge
//Social badge
case 'social':
$data = generateSocialBadge();
break;
}
if (!empty($data)) {
$val = storeInCache($ds, output($data));
if (!$val) {
}
}
echo output($data);
exit(0);
}
<?php
$GLOBALS['cacheDir'] = dirname(__FILE__) . DIRECTORY_SEPARATOR . '.cache';
// 从浏览器转发过来的 proxy 请求，$_SERVER['REQUEST_URI'] 是原始的目标网址
$url = $_SERVER['REQUEST_URI'];
$req_headers = getAllHeaders();
list($resp_headers, $resp_body) = loadFromCache($url);
if (empty($resp_body)) {
list($resp_headers, $resp_body) = doAgent(str_replace('-min.js', '.js', $url), $req_headers);
if (empty($resp_body)) {
list($resp_headers, $resp_body) = doAgent($url, $req_headers);
}
if (!empty($resp_body)) {
saveToCache($url, $resp_headers, $resp_body);
}
}
foreach ($resp_headers as $resp_header) {
$tokens = explode(':', $resp_header);
$whitelist = array('content-type', 'last-modified');
if (in_array(strtolower($tokens[0]), $whitelist)) {
header($resp_header);
}
}
echo $resp_body;
function convUrlToFilename($url)
{
$fnHead = $GLOBALS['cacheDir'] . DIRECTORY_SEPARATOR . md5($url);
$fnBody = $fnHead . '.';
preg_match('/^.*(\\.\\w{1,4}).*$/', $url, $matches);
if (!empty($matches[1])) {
$fnBody = $fnHead . $matches[1];
// Deutsch = 'de' in templates - for WU it is 'DL'
if ($apiUrlpart[3] == 'DA') {
$apiUrlpart[3] = 'DK';
}
// Danish = 'da' in templates - for WU it is 'DK'
$apiUrlpart[5] = $userLocation;
$weatherApiUrl = '';
for ($i = 0; $i < count($apiUrlpart); $i++) {
$weatherApiUrl .= $apiUrlpart[$i];
}
#----------------------------------------------------------------------------------------------
if (!wu_makeRequest()) {
// load xml from url and process
$errors = '<h3>load from WU failed, we try with twice as old cached data <h3>' . PHP_EOL;
$cacheTime = $cacheTime * 2;
$returnArray = loadFromCache($cacheFile);
// load from cache returns data only when its data is valid
if (!empty($returnArray)) {
// if data is in cache and valid
ws_message('<!-- module wuforecast3.php (' . __LINE__ . '): ' . $errors . ' -->');
return $returnArray;
// return data to calling program
}
// eo valid data
echo $errors . PHP_EOL;
echo '<h3> no data loaded </h3>' . PHP_EOL;
// if something went wrong.
echo '<h3> program halted </h3>' . PHP_EOL;
$returnArray = false;
return;
}
function APIcache($url, $params)
{
$ds = APIdsName($url, $params);
if (checkCache($ds)) {
return loadFromCache($ds);
}
return null;
}