Files
orly/pkg/cmd/lerproxy/reverse/proxy.go
2025-07-17 13:18:55 +01:00

35 lines
1.0 KiB
Go

// Package reverse is a copy of httputil.NewSingleHostReverseProxy with addition
// of "X-Forwarded-Proto" header.
package reverse
import (
"net/http"
"net/http/httputil"
"net/url"
"orly.dev/pkg/cmd/lerproxy/util"
"orly.dev/pkg/utils/log"
)
// NewSingleHostReverseProxy is a copy of httputil.NewSingleHostReverseProxy
// with addition of "X-Forwarded-Proto" header.
func NewSingleHostReverseProxy(target *url.URL) (rp *httputil.ReverseProxy) {
targetQuery := target.RawQuery
director := func(req *http.Request) {
log.D.S(req)
req.URL.Scheme = target.Scheme
req.URL.Host = target.Host
req.URL.Path = util.SingleJoiningSlash(target.Path, req.URL.Path)
if targetQuery == "" || req.URL.RawQuery == "" {
req.URL.RawQuery = targetQuery + req.URL.RawQuery
} else {
req.URL.RawQuery = targetQuery + "&" + req.URL.RawQuery
}
if _, ok := req.Header["User-Agent"]; !ok {
req.Header.Set("User-Agent", "")
}
req.Header.Set("X-Forwarded-Proto", "https")
}
rp = &httputil.ReverseProxy{Director: director}
return
}