HTTPClient don't pull too much bytes when no content-length is given

_test/tests/inc/httpclient_http.test.php

@@ -122,9 +122,14 @@ class httpclient_http_test extends DokuWikiTest {
     function test_maxbody(){
         $http = new HTTPClient();
         $http->max_bodysize = 250;
+
+        // this should abort completely
         $data = $http->get($this->server.'/stream/30');
         $this->assertTrue($data === false, 'HTTP response');
+
+        // this should read just the needed bytes
         $http->max_bodysize_abort = false;
+        $http->keep_alive = false;
         $data = $http->get($this->server.'/stream/30');
         $this->assertFalse($data === false, 'HTTP response');
         /* should read no more than max_bodysize+1 */

inc/HTTPClient.php

@@ -463,6 +463,8 @@ class HTTPClient {
                 }
 
                 $r_body = $this->_readData($socket, $length, 'response (content-length limited)', true);
+            }elseif( !isset($this->resp_headers['transfer-encoding']) && $this->max_bodysize && !$this->keep_alive){
+                $r_body = $this->_readData($socket, $this->max_bodysize, 'response (content-length limited)', true);
             }else{
                 // read entire socket
                 $r_size = 0;