caddyhttp: Reject absurd methods (#4538)
caddyhttp: Reject absurd methods (#4538)

* caddyhttp: Reject absurdly long methods

* Limit method to 32 chars and truncate

* Just reject the request and debug-log it

* Log remote address
mholt/caddy,mholt/caddy,l3dlp/caddy,l3dlp/caddy,l3dlp/caddy