support proxy prefix

server/ctrladmin/ctrl.go

@@ -3,6 +3,7 @@ package ctrladmin
 import (
 	"encoding/gob"
 	"fmt"
+	"strings"
 	"html/template"
 	"log"
 	"net/http"
@@ -80,6 +81,7 @@ func New(base *ctrlbase.Controller) *Controller {
 		Funcs(sprig.FuncMap()).
 		Funcs(template.FuncMap{
 			"humanDate": humanize.Time,
+			"path":      base.Path,
 		})
 	tmplBase = extendFromPaths(tmplBase, prefixPartials)
 	tmplBase = extendFromPaths(tmplBase, prefixLayouts)
@@ -140,7 +142,11 @@ func (c *Controller) H(h adminHandler) http.Handler {
 			}
 		}
 		if resp.redirect != "" {
-			http.Redirect(w, r, resp.redirect, http.StatusSeeOther)
+			to := resp.redirect
+			if strings.HasPrefix(to, "/") {
+				to = c.Path(to)
+			}
+			http.Redirect(w, r, to, http.StatusSeeOther)
 			return
 		}
 		if resp.err != "" {

server/ctrladmin/handlers.go

@@ -36,7 +36,7 @@ func (c *Controller) ServeHome(r *http.Request) *Response {
 		r.URL.Scheme,
 	)
 	host := firstExisting(
-		"localhost:7373", // fallback
+		"localhost:4747", // fallback
 		r.Header.Get("X-Forwarded-Host"),
 		r.Host,
 	)

server/ctrladmin/handlers_raw.go

@@ -28,12 +28,12 @@ func (c *Controller) ServeLoginDo(w http.ResponseWriter, r *http.Request) {
 	// session and put the row into the request context
 	session.Values["user"] = user.Name
 	sessLogSave(session, w, r)
-	http.Redirect(w, r, "/admin/home", http.StatusSeeOther)
+	http.Redirect(w, r, c.Path("/admin/home"), http.StatusSeeOther)
 }
 
 func (c *Controller) ServeLogout(w http.ResponseWriter, r *http.Request) {
 	session := r.Context().Value(CtxSession).(*sessions.Session)
 	session.Options.MaxAge = -1
 	sessLogSave(session, w, r)
-	http.Redirect(w, r, "/admin/login", http.StatusSeeOther)
+	http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
 }

server/ctrladmin/middleware.go

@@ -25,7 +25,7 @@ func (c *Controller) WithUserSession(next http.Handler) http.Handler {
 		if !ok {
 			sessAddFlashW(session, []string{"you are not authenticated"})
 			sessLogSave(session, w, r)
-			http.Redirect(w, r, "/admin/login", http.StatusSeeOther)
+			http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
 			return
 		}
 		// take username from sesion and add the user row to the context
@@ -35,7 +35,7 @@ func (c *Controller) WithUserSession(next http.Handler) http.Handler {
 			// user in the database (maybe the user was deleted)
 			session.Options.MaxAge = -1
 			sessLogSave(session, w, r)
-			http.Redirect(w, r, "/admin/login", http.StatusSeeOther)
+			http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
 			return
 		}
 		withUser := context.WithValue(r.Context(), CtxUser, user)
@@ -51,7 +51,7 @@ func (c *Controller) WithAdminSession(next http.Handler) http.Handler {
 		if !user.IsAdmin {
 			sessAddFlashW(session, []string{"you are not an admin"})
 			sessLogSave(session, w, r)
-			http.Redirect(w, r, "/admin/login", http.StatusSeeOther)
+			http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
 			return
 		}
 		next.ServeHTTP(w, r)