internal: fix routing for requests with querystring signature to embedded outpost

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

internal/outpost/proxyv2/application/application.go

@@ -201,6 +201,16 @@ func (a *Application) Mode() api.ProxyMode {
 	return *a.proxyConfig.Mode.Get()
 }
 
+func (a *Application) HasQuerySignature(r *http.Request) bool {
+	if strings.EqualFold(r.URL.Query().Get(CallbackSignature), "true") {
+		return true
+	}
+	if strings.EqualFold(r.URL.Query().Get(LogoutSignature), "true") {
+		return true
+	}
+	return false
+}
+
 func (a *Application) ProxyConfig() api.ProxyOutpostConfig {
 	return a.proxyConfig
 }

internal/outpost/proxyv2/proxyv2.go

@@ -67,11 +67,12 @@ func NewProxyServer(ac *ak.APIController) *ProxyServer {
 
 func (ps *ProxyServer) HandleHost(rw http.ResponseWriter, r *http.Request) bool {
 	a, _ := ps.lookupApp(r)
-	if a != nil {
-		if a.Mode() == api.PROXYMODE_PROXY {
-			a.ServeHTTP(rw, r)
-			return true
-		}
+	if a == nil {
+		return false
+	}
+	if a.HasQuerySignature(r) || a.Mode() == api.PROXYMODE_PROXY {
+		a.ServeHTTP(rw, r)
+		return true
 	}
 	return false
 }