From 01a7a625417bd540b82eb29d3ea8407e1f7eb568 Mon Sep 17 00:00:00 2001
From: kolaente <k@knt.li>
Date: Tue, 10 Sep 2024 17:32:35 +0200
Subject: [PATCH] fix(caldav): reject invalid project id with error 400

Resolves https://vikunja.sentry.io/share/issue/6fc18edefa0e4db3b2e10efe36deeaa4/

(cherry picked from commit 1085a6583be733aa39128bde9dcb641be734870d)
---
 pkg/routes/caldav/handler.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/routes/caldav/handler.go b/pkg/routes/caldav/handler.go
index c8ec4fb03..c7fb57be7 100644
--- a/pkg/routes/caldav/handler.go
+++ b/pkg/routes/caldav/handler.go
@@ -18,6 +18,7 @@ package caldav
 
 import (
 	"bytes"
+	"errors"
 	"fmt"
 	"io"
 	"reflect"
@@ -46,6 +47,9 @@ func getBasicAuthUserFromContext(c echo.Context) (*user.User, error) {
 func ProjectHandler(c echo.Context) error {
 	projectID, err := getIntParam(c, "project")
 	if err != nil {
+		if errors.Is(err, &strconv.NumError{}) {
+			return echo.ErrBadRequest
+		}
 		return err
 	}