Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-48184

QWebSocketServer disconnects a client if HTTP handshake arrives in multiple TCP segments

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P2: Important P2: Important
    • 5.15.2, 5.15, 6.3
    • 5.5.1
    • WebSockets
    • None

      Looks really similar to QTBUG-40878, but in QWebSocketServer instead of QWebSocket,

      Attached main.cpp starts a simple QWebSocketServer and a simple netcat test shows that the connection is killed if the handshake arrives in multiple TCP segments, the client is disconnected after sending the first line:

      $ nc -v localhost 8080
Connection to localhost 8080 port [tcp/http-alt] succeeded!
GET / HTTP/1.1

      but if you send the whole handshake using netcat the handshake is handler properly:

      $ nc -v localhost 8080 < handshake.txt 
Connection to localhost 8080 port [tcp/http-alt] succeeded!
HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
Server: main
Access-Control-Allow-Credentials: false
Access-Control-Allow-Methods: GET
Access-Control-Allow-Headers: content-type
Access-Control-Allow-Origin: http://127.0.0.1/
Date: Wed, 09 Sep 2015 07:24:35 GMT

you're being processed...

        1. handshake.txt
          0.2 kB
        2. main.cpp
          2 kB
        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            oyheskes Øystein Heskestad
            marko.silokunnas Marko Silokunnas
            Votes:
            1 Vote for this issue
            Watchers:
            5 Start watching this issue

              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes