diff options
Diffstat (limited to 'modules/caddyhttp/reverseproxy')
| -rw-r--r-- | modules/caddyhttp/reverseproxy/command.go | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/modules/caddyhttp/reverseproxy/command.go b/modules/caddyhttp/reverseproxy/command.go index 1638d82..c47447f 100644 --- a/modules/caddyhttp/reverseproxy/command.go +++ b/modules/caddyhttp/reverseproxy/command.go @@ -36,7 +36,7 @@ func init() { caddycmd.RegisterCommand(caddycmd.Command{ Name: "reverse-proxy", Func: cmdReverseProxy, - Usage: "[--from <addr>] [--to <addr>]", + Usage: "[--from <addr>] [--to <addr>] [--change-host-header]", Short: "A quick and production-ready reverse proxy", Long: ` A simple but production-ready reverse proxy. Useful for quick deployments, @@ -46,11 +46,16 @@ Simply shuttles HTTP traffic from the --from address to the --to address. If the --from address has a domain name, Caddy will attempt to serve the proxy over HTTPS with a certificate. + +If --change-host-header is set, the Host header on the request will be modified +from its original incoming value to the address of the upstream. (Otherwise, by +default, all incoming headers are passed through unmodified.) `, Flags: func() *flag.FlagSet { fs := flag.NewFlagSet("file-server", flag.ExitOnError) - fs.String("from", "", "Address to receive traffic on") - fs.String("to", "", "Upstream address to proxy traffic to") + fs.String("from", "", "Address on which to receive traffic") + fs.String("to", "", "Upstream address to which to to proxy traffic") + fs.Bool("change-host-header", false, "Set upstream Host header to address of upstream") return fs }(), }) @@ -59,6 +64,7 @@ proxy over HTTPS with a certificate. func cmdReverseProxy(fs caddycmd.Flags) (int, error) { from := fs.String("from") to := fs.String("to") + changeHost := fs.Bool("change-host-header") if from == "" { from = "localhost:" + httpcaddyfile.DefaultPort @@ -97,13 +103,16 @@ func cmdReverseProxy(fs caddycmd.Flags) (int, error) { handler := Handler{ TransportRaw: caddyconfig.JSONModuleObject(ht, "protocol", "http", nil), Upstreams: UpstreamPool{{Dial: toURL.Host}}, - Headers: &headers.Handler{ + } + + if changeHost { + handler.Headers = &headers.Handler{ Request: &headers.HeaderOps{ Set: http.Header{ - "Host": []string{"{http.reverse_proxy.upstream.host}"}, + "Host": []string{"{http.reverse_proxy.upstream.hostport}"}, }, }, - }, + } } route := caddyhttp.Route{ |