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--- projects:osmiumvm:challenges:websocket-communication [2020-08-12 03:49] – ↷ Page moved from projects:virtualization-platform:challenges:websocket-communication to projects:osmiumvm:challenges:websocket-communication nkukard
+++ projects:osmiumvm:challenges:websocket-communication [2025-12-23 12:42] (current) – removed nkukard
@@ Line 1: / Line 1: @@
-====== Websocket Communication ======
-===== Goals =====
-We want our virtualization platform to use noVNC web-based consoles and have support for serial communication.
-We'll be doing this using Qemu VNC UNIX websockets. It may be easier to try with a normal IP-based socket first, then convert your code to use UNIX sockets.
-There is probably two ways this can be implemented, 1) we use websockets in qemu and proxy it to the client; and 2) we use raw communication between our app and qemu, and proxy that over websockets to the client.
-I'd prefer we handle all communication in the same flask app than use a proxy process that requires an additional port to be opened. This way authentication would be easier and contained in the same app?
-===== POC Process =====
-  * Flask app to forward websock communication from VM to browser window
-    * noVNC
-      * Get basic forwarding of websock communication working with noVNC
-      * Opening multiple browser windows must work
-    * serial console
-      * Get basic forwarding of websock communication working with xtermjs
-      * Opening multiple browser window must work
-    * Add very basic test:test authentication
-      * Protect endpoint
-===== Useful Links =====
-  * https://github.com/cs01/pyxterm.js/blob/master/pyxtermjs/app.py
-  * https://github.com/novnc/noVNC/issues/184
-  * https://github.com/NaughtyCodes/FlaskSocketIoWithTCP/blob/master/app/app.py
-  * https://github.com/VietHTran/Ganbare/blob/83cd1b39ccae0e5f324941f15911413ccb769888/console/client.py
-  * https://github.com/search?q=flask+socketio+tcp&type=Code
-  * Socket authentication https://stackoverflow.com/questions/31218047/flask-socketio-authenticate-on-connect-event-by-sending-token
-  * https://github.com/m0udd/uCAB/blob/ad3124fe9fd9a127df712ea078a4ebfa42506aab/Serveur/Embedded_uCAB_RPI/uCAB.py
-  * https://github.com/RaitoBezarius/massive-octo-archer/blob/306b1af6ffdad247defd36357a0372d5d74ea78d/Website/run_website.py
-===== Testing =====
-Basic noVNC testing with an IP-based socket...
-<code>
-qemu-system-x86_64 -m 512 --enable-kvm -vnc :0,websocket
-python -m http.server
-http://localhost:8000/vnc.html
-</code>
-We however need the above to work with UNIX sockets...
-<code>
-qemu-system-x86_64 -m 512 --enable-kvm -vnc /tmp/test.sock,websocket
-</code>
-For serial...
-<code>
--chardev socket,id=serial0,path=/tmp/ws-serial.sock,server,nowait,websocket -serial chardev:serial0
-</code>