Hacker Remix

Show HN: I Built a Telegraph Simulator

72 points by leugim 5 days ago | 27 comments

willwade 1 day ago

Nice. If you want to learn Morse try https://morse-learn.acecentre.net/ (I must throw cursor at this to fix some issues like working nicely on mobile).

op00to 2 days ago

I see this over and over: "I HAVE HIJACKED THE SERVERS WEBSOCKET TO SEND CUSTOM MESSAGES IF YOU WANT TO DO THE SAME SEE THE FOLLOWING LINK [...]"

coldfoundry 2 days ago

Yeah, there was no hijacking of a server-side websocket at all, just sending client socket messages to the server since there is no auth or ratelimiting. Sucks thats it’s so frequent, ruins the experience. You can essentially do this to any websocket you’re connected to.

anonyonoor 2 days ago

I followed the link and surprisingly, instead of a scam, it was actually an explanation of how to send custom web socket messages.

https://rentry.co/MG5TR43

op00to 2 days ago

Braver than me!

firtoz 2 days ago

Note to self: when doing HN demos, bulletproof your endpoints

leugim 5 days ago

I was reading "The Victorian Internet" by Tom Standage and decide to build a proof of concept of an online telegraph.

pj_mukh 2 days ago

This is so cool. Knowing nothing about Telegraph standards are there no explicit signals for symbols or spaces?

jdietrich 2 days ago

ITU Morse does specify punctuation marks and a few symbols, but they're rarely used in practice.

A space is denoted by a gap equal to seven dots.

https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1677-1-20...

dakr 2 days ago

Judging by the comments I've seen go by the on the ticker, this is less a telegraph simulation than an observational experiment in how terrible people can be. It's a real shame.