* GET an HTTP URL to retrieve its content
* Uses the cURL library or a fallback method
*
- * @param string $url URL to get (http://...)
- * @param int $timeout network timeout (in seconds)
- * @param int $maxBytes maximum downloaded bytes (default: 4 MiB)
+ * @param string $url URL to get (http://...)
+ * @param int $timeout network timeout (in seconds)
+ * @param int $maxBytes maximum downloaded bytes (default: 4 MiB)
+ * @param callable|string $curlWriteFunction Optional callback called during the download (cURL CURLOPT_WRITEFUNCTION).
+ * Can be used to add download conditions on the headers (response code, content type, etc.).
*
* @return array HTTP response headers, downloaded content
*
* @see http://stackoverflow.com/q/9183178
* @see http://stackoverflow.com/q/1462720
*/
-function get_http_response($url, $timeout = 30, $maxBytes = 4194304)
+function get_http_response($url, $timeout = 30, $maxBytes = 4194304, $curlWriteFunction = null)
{
$urlObj = new Url($url);
$cleanUrl = $urlObj->idnToAscii();
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
+ if (is_callable($curlWriteFunction)) {
+ curl_setopt($ch, CURLOPT_WRITEFUNCTION, $curlWriteFunction);
+ }
+
// Max download size management
curl_setopt($ch, CURLOPT_BUFFERSIZE, 1024);
curl_setopt($ch, CURLOPT_NOPROGRESS, false);
return array_pop($ips);
}
+
+/**
+ * Returns true if Shaarli's currently browsed in HTTPS.
+ * Supports reverse proxies (if the headers are correctly set).
+ *
+ * @param array $server $_SERVER.
+ *
+ * @return bool true if HTTPS, false otherwise.
+ */
+function is_https($server)
+{
+
+ if (isset($server['HTTP_X_FORWARDED_PORT'])) {
+ // Keep forwarded port
+ if (strpos($server['HTTP_X_FORWARDED_PORT'], ',') !== false) {
+ $ports = explode(',', $server['HTTP_X_FORWARDED_PORT']);
+ $port = trim($ports[0]);
+ } else {
+ $port = $server['HTTP_X_FORWARDED_PORT'];
+ }
+
+ if ($port == '443') {
+ return true;
+ }
+ }
+
+ return ! empty($server['HTTPS']);
+}