* tls: add alpn to managed HTTPS records
* tls: centralise HTTPS RR ALPN defaults and registration
Reuse shared protocol defaults instead of repeating the default HTTP protocol list, unify server name registration to carry ALPN in one experimental API and reuse the TLS default ALPN ordering for HTTPS RR publication
* http: centralise effective protocol resolution for HTTPS RR ALPN
Both fallbacks in splitPos relied on golang.org/x/text/search with
search.IgnoreCase, which performs Unicode equivalence matching far beyond
ASCII case folding. Combined with the validated-ASCII guarantee on every
SplitPath entry, that fallback turned non-PHP filenames into PHP scripts:
- when the inner loop hit a non-ASCII byte and the IndexString fallback
returned -1, the loop broke without resetting match=false, so a stale
match=true caused a non-existent .php to be reported (PoC:
"/name.<U+00A1>.txt").
- search.IgnoreCase folded fullwidth, mathematical and circled letters
onto ASCII, so "/shell.<math sans-serif php>",
"/shell.<fullwidth p>hp", "/shell.<circled php>" were all detected as
".php" files.
Replace the fallback with strict byte-level ASCII case-insensitive
matching: any byte >= utf8.RuneSelf in the path can never be part of a
match, since SplitPath entries are validated ASCII-only and lower-cased
in Provision(). This keeps the hot path branch-light and removes the
x/text/search dependency from the main module.
Reported against FrankenPHP as GHSA-3g8v-8r37-cgjm and
GHSA-v4h7-cj44-8fc8. The vulnerable function in this module was adapted
from the same FrankenPHP code.
* reverseproxy: Add ability to clear dynamic upstreams cache during retries
This is an optional interface for dynamic upstream modules to implement if they cache results.
TODO: More documentation; this is an experiment.
* Add some godoc
* Export interface; update godoc
* admin: Redact sensitive request headers in API logs
* Fix govulncheck and typed atomic lint failures
* Sync Go module metadata after dependency downgrade
`reveal_symlinks` was exposing symlink targets as fully resolved absolute paths, even if the target is a relative path. With this change the link target is shown as-is, without resolving anything.
* add 'root' key to Helper.State for access in frankenphp's `php_server` directive
* clone state before passing it to child directives, but keep sharing it among sibling directives
* propagate named route state from children to parent
* use BlockState to set "root" instead
* gofmt -w .
* go fmt ./...
* here we go
Thank you for the report by @MaherAzzouzi, and the suggested fix!
2026-03-04 16:18:33 -07:00
Oleh Konko | semantic verification for trust infra | LLM-augmented operations pipeline (precision-first, claim≤evidence, submit-human) | verify the payload, not the signer
Only apply repl.ReplaceAll() on values from literal variable names
(e.g. map outputs), not on values resolved from placeholder keys
(e.g. {http.request.header.*}). The placeholder path already resolves
the value via repl.Get(), so a second expansion allows user-controlled
input containing {env.*} or {file.*} to be evaluated, leaking
environment variables and file contents.
Add regression test to verify placeholder-sourced values are not
re-expanded.
When using copy_headers in a forward_auth block, client-supplied headers with
the same names were not being removed before being forwarded to the backend.
This happens because PR #6608 added a MatchNot guard that skips the Set
operation when the auth service does not return a given header. That guard
prevents setting headers to empty strings, which is the correct behavior,
but it also means a client can send X-User-Id: admin in their request and
if the auth service validates the token without returning X-User-Id, Caddy
skips the Set and the client value passes through unchanged to the backend.
The fix adds an unconditional delete route for each copy_headers entry,
placed just before the existing conditional set route. The delete always runs
regardless of what the auth service returns. The conditional set still only
runs when the auth service provides that header.
The end result is:
- Client-supplied headers are always removed
- When the auth service returns the header, the backend gets that value
- When the auth service does not return the header, the backend sees nothing
Existing behavior is unchanged for any deployment where the auth service
returns all of the configured copy_headers entries.
Fixes GHSA-7r4p-vjf4-gxv4
* perf: collect metrics once per route instead of per handler (#4644)
Move Prometheus metrics instrumentation from the per-handler level to
the per-route level. Previously, every middleware handler in a route was
individually wrapped with metricsInstrumentedHandler, causing metrics to
be collected N times per request (once per handler in the chain). Since
all handlers in a route see the same request, these per-handler metrics
were redundant and added significant CPU overhead (73% of request
handling time per the original profiling).
The fix introduces metricsInstrumentedRoute which wraps the entire
compiled handler chain once in wrapRoute, collecting metrics only when
the route actually matches. The handler label uses the first handler's
module name, which is the most meaningful identifier for the route.
Benchmark results (5 handlers per route):
Old (per-handler): ~4650 ns/op, 4400 B/op, 45 allocs/op
New (per-route): ~940 ns/op, 816 B/op, 8 allocs/op
Improvement: ~5x faster, ~5.4x less memory, ~5.6x fewer allocs
Signed-off-by: Varun Chawla <varun_6april@hotmail.com>
* Remove unused metricsInstrumentedHandler code
Delete the metricsInstrumentedHandler type, its constructor, and
ServeHTTP method since they are no longer used after switching to
route-level metrics collection via metricsInstrumentedRoute. Also
remove the unused metrics parameter from wrapMiddleware and the
middlewareHandlerFunc test helper, and convert existing tests to
use the new route-level API.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Address review feedback: restore comments, move function to bottom
- Move computeApproximateRequestSize back to bottom of file to minimize diff
- Restore all useful comments that were accidentally dropped
- Old metricsInstrumentedHandler already removed in previous commit
---------
Signed-off-by: Varun Chawla <varun_6april@hotmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This refactors the initial approach in PR #7281, replacing the UsagePool
with a dedicated package-level sync.Map and atomic.Int64 to track
in-flight requests without global lock contention.
It also introduces a lookup map in the admin API to fix a potential
O(n^2) iteration over upstreams, ensuring that draining upstreams
are correctly exposed across config reloads without leaking memory.
Co-authored-by: Y.Horie <u5.horie@gmail.com>
reverseproxy: optimize in-flight tracking and admin API
- Replaced sync.RWMutex with sync.Map and atomic.Int64 to avoid lock contention under high RPS.
- Introduced a lookup map in the admin API to fix a potential O(n^2) iteration over upstreams.
Necessary as otherwise the early-bail in `until =
strings.IndexByte(remaining, nextCh) ... if until == -1` can cause a
case-insensitive mismatch
Co-authored-by: Asim Viladi Oglu Manizada <manizada@users.noreply.github.com>
Normalize exact hosts at provisioning and reqHost in the fast path so case-different Host variants can’t bypass host-gated routes.
Co-authored-by: Asim Viladi Oglu Manizada <manizada@users.noreply.github.com>
