cmd/go-cache-plugin: forward proxy requests for all targets

Set the bridge's ForwardConnect option true, so it will not reject CONNECT
requests for hosts not listed in Allow, but instead will open direct
connections to them.

Author: creachadair

cmd/go-cache-plugin/setup.go

@@ -167,6 +167,9 @@ func initRevProxy(env *command.Env, s3c *s3util.Client, g *taskgroup.Group) (htt
 	bridge := &proxyconn.Bridge{
 		Addrs:   hosts,
 		Handler: proxy, // forward HTTP requests unencrypted to the proxy
+
+		// Forward connections not matching Addrs directly to their targets.
+		ForwardConnect: true,
 	}
 
 	// Run the proxy on its own separate server with TLS support.  This server

go.mod

@@ -9,8 +9,8 @@ require (
 	github.com/creachadair/command v0.1.13
 	github.com/creachadair/flax v0.0.1
 	github.com/creachadair/gocache v0.0.0-20240828204135-c17fe2fd53a6
-	github.com/creachadair/mds v0.17.1
-	github.com/creachadair/mhttp v0.0.0-20240901170350-fcb7fe4d0ec4
+	github.com/creachadair/mds v0.18.1
+	github.com/creachadair/mhttp v0.0.0-20240903220739-94a049de22e4
 	github.com/creachadair/taskgroup v0.9.1
 	github.com/creachadair/tlsutil v0.0.0-20240901051800-c769f173a559
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da

go.sum

@@ -48,10 +48,10 @@ github.com/creachadair/flax v0.0.1 h1:it+joEf9aEUalaV7XWll/pk6zA4/FbNvMImW9q/lS8
 github.com/creachadair/flax v0.0.1/go.mod h1:K8bFvn8hMdAljQkaKNc7I3os5Wk36JxkyCkfdZ7S8d4=
 github.com/creachadair/gocache v0.0.0-20240828204135-c17fe2fd53a6 h1:SCF2S1aWvuFD+Vus1HGkbhaP8+ZX0VC8yWyWynlDqTg=
 github.com/creachadair/gocache v0.0.0-20240828204135-c17fe2fd53a6/go.mod h1:iqnJUdWeHbNfn8xWEkLWGQnOo3dqjkZPH9Rk0rjVk0U=
-github.com/creachadair/mds v0.17.1 h1:lXQbTGKmb3nE3aK6OEp29L1gCx6B5ynzlQ6c1KOBurc=
-github.com/creachadair/mds v0.17.1/go.mod h1:4b//mUiL8YldH6TImXjmW45myzTLNS1LLjOmrk888eg=
-github.com/creachadair/mhttp v0.0.0-20240901170350-fcb7fe4d0ec4 h1:K3jpZDY2ny7Yg7hnyisuq8gqMd0vLyTwc50c0RBP81I=
-github.com/creachadair/mhttp v0.0.0-20240901170350-fcb7fe4d0ec4/go.mod h1:gFerCzdOaPgMrgHHm+d65i1ej09AMsMjzWgaOzvaVdQ=
+github.com/creachadair/mds v0.18.1 h1:lq2JufNm5Vfkdolf9Z+2shiw7r8XJgLSZniLHUFYJcI=
+github.com/creachadair/mds v0.18.1/go.mod h1:4b//mUiL8YldH6TImXjmW45myzTLNS1LLjOmrk888eg=
+github.com/creachadair/mhttp v0.0.0-20240903220739-94a049de22e4 h1:c+9j/MjbcfigUpx4MnpOzSqcMtcksuhZ20+XF0RKoLM=
+github.com/creachadair/mhttp v0.0.0-20240903220739-94a049de22e4/go.mod h1:Vito16r0HqXVEcwjz5Z9PLdFEbX016lCOV6iVgH06tc=
 github.com/creachadair/taskgroup v0.9.1 h1:oam4POtt6PpmUr4us+ycUUfb2mPWc0RmIycte2oWoWw=
 github.com/creachadair/taskgroup v0.9.1/go.mod h1:9oDDPt/5QPS4iylvPMC81GRlj+1je8AFDbjUh4zaQWo=
 github.com/creachadair/tlsutil v0.0.0-20240901051800-c769f173a559 h1:8hlU8ebt2lI//6sFj6ICE6mN6c6Uvj4588XilSqpmu8=