*: strip leading and trailing whitespace when reading config values from files

also add a debug endpoint that dumps the go parsed config

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

authentik/lib/config.py

@@ -93,7 +93,7 @@ class ConfigLoader:
         if url.scheme == "file":
             try:
                 with open(url.path, "r", encoding="utf8") as _file:
-                    value = _file.read()
+                    value = _file.read().strip()
             except OSError as exc:
                 self.log("error", f"Failed to read config value from {url.path}: {exc}")
                 value = url.query

internal/config/config.go

@@ -135,7 +135,7 @@ func (c *Config) parseScheme(rawVal string) string {
 		if err != nil {
 			return u.RawQuery
 		}
-		return string(d)
+		return strings.TrimSpace(string(d))
 	}
 	return rawVal
 }

internal/debug/debug.go

@@ -1,6 +1,7 @@
 package debug
 
 import (
+	"encoding/json"
 	"fmt"
 	"net/http"
 	"net/http/pprof"
@@ -23,6 +24,12 @@ func EnableDebugServer() {
 	h.HandleFunc("/debug/pprof/profile", pprof.Profile)
 	h.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
 	h.HandleFunc("/debug/pprof/trace", pprof.Trace)
+	h.HandleFunc("/debug/dump_config", func(w http.ResponseWriter, r *http.Request) {
+		enc := json.NewEncoder(w)
+		enc.SetEscapeHTML(true)
+		enc.SetIndent("", "\t")
+		enc.Encode(config.Get())
+	})
 	h.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		_ = h.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
 			tpl, err := route.GetPathTemplate()