dynom / proxima Goto Github PK

Timeouts aren't handled well by Proxima when the configured upstream isn't available. This is partially due to how Go's httputil.ReverseProxy works. There is no way to add a timeout, unless a custom dialer is defined.

It's still quite trivial to abuse Imaginary with ideas like:

for width in $(seq 1 1000); do
  curl 'http://localhost:9000/?url=foo&width='${width};
done

If the result is proxied by a CDN, this results not only in a lot of computation time, but also quite a bit of storage costs. By adding a way to add constraints we can limit the amount of variations.

Some ideas:

• Limit to specific aspect-ratios
• Limit ranges 500 < width && width < 1000
• ...