Constellation crashes from curious students

[rcmiller]

Hello!

It would seem that the software for collaboration (Constellation) doesn't handle server-side errors correctly.

I was testing connecting to the web socket and wanted to modify the client software for my own purposes! In testing, I sent an unrecognized web socket message format (not the json0 format it was expecting) to the server.

I used a WebSocket testing tool to send "Hello World" to the endpoint

wss://constellation.mit.edu:444/pashneal:57a96627a9fb318eaddb37e015ac6d5679851da181e9960eede68dbecc024879

Which seemed to have caused the crash

This seemed to have caused a system-wide crash and constellation.mit.edu is no longer accessible (can't be sure that I did that, however)

This means that step 4 is no longer doable until the server is restarted.

My apologies! I'll refrain from tweaking the software provided by the 6.102 in this manner in the future!

[maxg]

Will need to reproduce, but in app.js, the lack of an error handler on stream seems suspicious.