Each rewriteBody/rewriteResponseBody/rewriteRequestBody rule can now
optionally reference a named rewriter plugin (HTTP/gRPC backend) via
the rewriter field. When set, body rewriting delegates to the plugin
rather than applying pattern/replacement, while content-type filtering
still applies.
Coincident fixes:
- rewriter/plugin/grpc: return nil when conn is nil (avoid nil-ptr panic)
- rewriter/plugin/http: drain response body in defer to prevent leaks
- config/parsing/rewriter: pass TimeoutOption to gRPC plugin
- config/parsing/service: warn when referenced rewriter is not registered
Add the first implementation of core/rewriter.Rewriter as a plugin-only
component following the bypass/admission pattern (single-value, no
RewriterObject). Includes:
- plugin/rewriter/proto/: protobuf definition with Rewrite RPC returning
transformed data in the reply
- x/rewriter/plugin/: gRPC and HTTP plugin clients
- x/registry/rewriter.go: hot-reload-safe RewriterRegistry with wrapper
- x/config/config.go: RewriterConfig, Config.Rewriters, ServiceConfig.Rewriter
- x/config/parsing/rewriter/parse.go: config parser (plugin backends only)
- core/handler/option.go: Rewriter field + RewriterOption on handler.Options
- x/config/loader/loader.go: rewriter registration during startup
- x/config/parsing/service/parse.go: inject rewriter into handler options
Introduces WhitelistedAuthenticator that wraps an auth.Authenticator to skip
authentication when the client IP matches configured CIDR ranges or exact IPs.
The wrapping happens at service-parse time, transparently covering all handler
types (HTTP, SOCKS4/5, relay, http2, SSH).
Usage:
gost -L 'user:pass@:5999?skipauth=192.168.0.0/24,172.22.22.22/32'
Log a warning in ParseService when certFile/keyFile/caFile are configured for a listener type that never terminates TLS (tcp, udp, ws, mws, redirect, tproxy, rtcp, rudp, unix, runix, serial, stdio), so the misconfiguration is no longer silent. Uses a conservative plaintext blocklist; TLS-keyed off raw config strings so normal plaintext services stay quiet.
Refs go-gost/gost#579.
User-configured metadata on recorder objects (recorders[].metadata in YAML)
was silently discarded — MetadataRecordOption existed but was never called
anywhere in the codebase, causing plugin (HTTP/gRPC) recorders to always
receive null metadata.
Fix: wrap recorders that carry config metadata in MetadataRecorder, which
auto-appends the metadata to every Record() call. This covers all paths
(handler, router, sniffer, service) with zero call-site changes.
Adds RejectUnknownSNI and ServerNames fields to TLSConfig. When enabled,
TLS handshakes with missing or non-allowlisted SNI are rejected at the
handshake level via GetConfigForClient before any certificate is sent.
Works across all TLS-based listener types (tls, mtls, ws, mws, http2,
grpc, http3) since they share the same *tls.Config from LoadServerConfig.
Add godoc comments for all 62 exported symbols across 20 files in
config/parsing/: 23 MDKey constants, 35 Parse*/List/Default* functions,
3 TLS helpers, 1 Args struct with 7 fields, and the package doc.
ginuerzh
ginuerzh
Usishchev Yury
Denis Galeev