MengRao
Server fails to accept websocket connection with error 400 from iOS Safari
When connecting a websocket from iOS safari, the websocket server responds with error 400 and closes the connection (line: 731, websocket.h)
I've done some investigation and it looks like the value for 'User-Agent' key for the websocket request from Safari iOS is longer than the 128 characters specified on line 634:
const int ValueBufSize = 128;
Raising this value is one solution, however it's worth noting that the current logic bails out of the entire connection if a value is longer than this. Given that the User-Agent key is not read anyway, it might be best to change the logic from 'break' to 'continue'
problem is at line 658, comment it out and problem goes away for me, it looks like code to fix some buggy client, it causes val_len on line 695 to have -1
` 658 while (val_end[-1] == ' ') val_end--;
695 if (val_len >= ValueBufSize) break; `
this is my connection string
GET / HTTP/1.1 Host: localhost:1234 User-Agent: Mozilla/5.0 (Unix; U; Linux 6.3.5-200.fc38.x86_64) http/2.9.5 Tcl/8.6.12 Connection: keep-alive Upgrade: websocket Connection: Upgrade Sec-WebSocket-Key: cZ7A+m2Pl1zuGlE1AcmnDA== Sec-WebSocket-Version: 13 Sec-WebSocket-Protocol: Accept: / Accept-Encoding: gzip,deflate,compress
