We build too many walls and not enough bridges

internal/api/ctx.go

@@ -0,0 +1,51 @@
+// Copyright (c) 2020 Proton Technologies AG
+//
+// This file is part of ProtonMail Bridge.
+//
+// ProtonMail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// ProtonMail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
+
+package api
+
+import (
+	"net/http"
+
+	"github.com/ProtonMail/proton-bridge/pkg/listener"
+)
+
+// httpHandler with Go's Response and Request.
+type httpHandler func(http.ResponseWriter, *http.Request)
+
+// handler with our context.
+type handler func(handlerContext) error
+
+type handlerContext struct {
+	req           *http.Request
+	resp          http.ResponseWriter
+	eventListener listener.Listener
+}
+
+func wrapper(api *apiServer, callback handler) httpHandler {
+	return func(w http.ResponseWriter, req *http.Request) {
+		ctx := handlerContext{
+			req:           req,
+			resp:          w,
+			eventListener: api.eventListener,
+		}
+		err := callback(ctx)
+		if err != nil {
+			log.Error("API callback of ", req.URL, " failed: ", err)
+			http.Error(w, err.Error(), 500)
+		}
+	}
+}