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find_site

tiny_proxy::proxy::handler

Function find_site 

Source 
pub fn find_site<'a>(
    config: &'a Config,
    host: &str,
    is_tls: bool,
) -> Option<&'a SiteConfig>
Expand description

Find a site configuration matching the given Host header value.

Browsers on default ports omit the port from the Host header:

  • HTTPS on 443 → Host: example.com (no :443)
  • HTTP on 80 → Host: example.com (no :80)

But config keys include the port: "example.com:443", "example.com:80".

Look up a site by Host header value.

Tries, in order:

  1. Exact match on the raw host string.
  2. If host has no port → append default port (443 for TLS, 80 for HTTP) and retry.
  3. For TLS, match by SNI hostname if exactly one site matches.
  4. If host has a port → strip it and try the bare hostname.

§Limitations

For non-default TLS ports (e.g., 8443), browsers include the port in Host (Host: example.com:8443), so exact match works. A client sending Host: example.com without a port to a TLS listener on :8443 gets 404 — that violates normal HTTP usage.