$value) {
if ($value)
$s.="&" . $var . "=" . urlencode($value);
}
$s = "?" . $s;
return $s;
}
/**
* make an http get request and return the response body
* @param string $url
* @return string
*/
function httpGet($url) {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_USERAGENT, 'php-curl :: pimped apache status');
$res = curl_exec($ch);
curl_close($ch);
return ($res);
}
/**
* check for an update of the product
* @param array $aOptions options array with these keys: url, ttl, link
* @return type
*/
function checkUpdate($aOptions) {
global $aLangTxt;
$sUrl = str_replace(" ", "%20", $aOptions["url"]);
$iTtl = (int) $aOptions["ttl"];
$sTarget = sys_get_temp_dir() . "/checkupdate_" . md5($sUrl) . ".tmp";
$sOut = '';
// if the user does not want an update check then respect it
if (!$iTtl){
return false;
}
$bExec = true;
if (file_exists($sTarget)) {
$bExec = false;
$aStat = stat($sTarget);
$iAge = time() - $aStat[9];
if ($iAge > $iTtl) {
$bExec = true;
}
$sOut.="last exec: " . $iAge . " s ago - timer is $iTtl
\n";
} else {
$sOut.="last exec: never (touchfile was not found)
\n";
}
if ($bExec) {
$sOut.="fetching $sUrl ...
";
$sResult = httpGet($sUrl);
if (!$sResult) {
$sResult = ' ' . $aLangTxt['versionError'] . '';
} else {
$sVersion = str_replace("UPDATE: v", "", str_replace(" is available", "", $sResult)
);
if (strpos($sResult, "UPDATE") === 0) {
$sResult = ' '
. ''
. sprintf($aLangTxt['versionUpdateAvailable'], $sVersion)
. ''
. '';
}
if (strpos($sResult, "OK") === 0) {
$sResult = ' '
. $aLangTxt['versionUptodate'] . '';
}
file_put_contents($sTarget, $sResult);
}
} else {
$sOut.="reading cache $sTarget ...
";
$sResult = file_get_contents($sTarget);
}
// for DEBUG
// echo $sOut;
return ''.$sResult.'';
}
?>