kemko/reproxy
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add the X-Forwarded-Proto and X-Forwarded-Port headers for SSLAuto mode

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This commit is contained in:
rashpile
2024-02-01 20:01:46 +00:00
committed by Umputun
parent 7ce7e18931
commit f573cd9e86
3 changed files with 7 additions and 1 deletions
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2
README.md
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@@ -157,7 +157,7 @@ In case if rules set as a part of docker compose environment, destination with t
## SSL support
SSL mode (by default none) can be set to `auto` (ACME/LE certificates), `static` (existing certificate) or `none`. If `auto` turned on SSL certificate will be issued automatically for all discovered server names. User can override it by setting `--ssl.fqdn` value(s)
SSL mode (by default none) can be set to `auto` (ACME/LE certificates), `static` (existing certificate) or `none`. If `auto` turned on SSL certificate will be issued automatically for all discovered server names. User can override it by setting `--ssl.fqdn` value(s). In `auto` SSL mode, Reproxy will automatically add the `X-Forwarded-Proto` and `X-Forwarded-Port` headers. These headers are useful for services behind the proxy to know the original protocol (http or https) and port number used by the client.
## Headers

4
app/proxy/proxy.go
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@@ -212,6 +212,10 @@ func (h *Http) proxyHandler() http.HandlerFunc {
uu := ctx.Value(ctxURL).(*url.URL)
keepHost := ctx.Value(ctxKeepHost).(bool)
r.Header.Add("X-Forwarded-Host", r.Host)
if h.SSLConfig.SSLMode == SSLAuto {
r.Header.Add("X-Forwarded-Proto", "https")
r.Header.Add("X-Forwarded-Port", "443")
}
r.URL.Path = uu.Path
r.URL.Host = uu.Host
r.URL.Scheme = uu.Scheme

2
app/proxy/proxy_test.go
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@@ -35,6 +35,8 @@ func TestHttp_Do(t *testing.T) {
w.Header().Add("h1", "v1")
require.Equal(t, "127.0.0.1", r.Header.Get("X-Real-IP"))
require.Equal(t, "127.0.0.1", r.Header.Get("X-Forwarded-For"))
require.Empty(t, r.Header.Get("X-Forwarded-Proto")) // ssl auto only
require.Empty(t, r.Header.Get("X-Forwarded-Port"))
fmt.Fprintf(w, "response %s", r.URL.String())
}))