40 lines
1 KiB
Go
40 lines
1 KiB
Go
package web
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import (
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"net/http"
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"net/http/httputil"
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"net/url"
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)
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func (ws *WebServer) configureProxy() {
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// Reverse proxy to the application server
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u, _ := url.Parse("http://localhost:8000")
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director := func(req *http.Request) {
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req.URL.Scheme = u.Scheme
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req.URL.Host = u.Host
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if _, ok := req.Header["User-Agent"]; !ok {
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// explicitly disable User-Agent so it's not set to default value
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req.Header.Set("User-Agent", "")
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}
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if req.TLS != nil {
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req.Header.Set("X-Forwarded-Proto", "https")
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} else {
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req.Header.Set("X-Forwarded-Proto", "http")
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}
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}
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rp := &httputil.ReverseProxy{Director: director}
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rp.ErrorHandler = ws.proxyErrorHandler
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rp.ModifyResponse = ws.proxyModifyResponse
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ws.m.PathPrefix("/").Handler(rp)
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}
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func (ws *WebServer) proxyErrorHandler(rw http.ResponseWriter, req *http.Request, err error) {
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ws.log.WithError(err).Warning("proxy error")
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rw.WriteHeader(http.StatusBadGateway)
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}
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func (ws *WebServer) proxyModifyResponse(r *http.Response) error {
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r.Header.Set("X-authentik-from", "authentik")
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return nil
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}
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