From b46cdc2e112652d70362f105a661b7d9f63fd286 Mon Sep 17 00:00:00 2001
From: "Patrik J. Braun" <bra.patrik@gmail.com>
Date: Tue, 10 Dec 2019 15:25:57 +0100
Subject: [PATCH] checking sqlite.db write permission

---
 .../model/diagnostics/ConfigDiagnostics.ts    | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/backend/model/diagnostics/ConfigDiagnostics.ts b/src/backend/model/diagnostics/ConfigDiagnostics.ts
index b23a1d32..e74123d2 100644
--- a/src/backend/model/diagnostics/ConfigDiagnostics.ts
+++ b/src/backend/model/diagnostics/ConfigDiagnostics.ts
@@ -10,12 +10,33 @@ import {IPrivateConfig, ServerConfig} from '../../../common/config/private/IPriv
 
 const LOG_TAG = '[ConfigDiagnostics]';
 
+
 export class ConfigDiagnostics {
 
+  static checkReadWritePermission(path: string) {
+    return new Promise((resolve, reject) => {
+      // tslint:disable-next-line:no-bitwise
+      fs.access(path, fs.constants.R_OK | fs.constants.W_OK, (err) => {
+        if (err) {
+          return reject(err);
+        }
+        return resolve();
+      });
+    });
+  }
+
   static async testDatabase(databaseConfig: ServerConfig.DataBaseConfig) {
     if (databaseConfig.type !== ServerConfig.DatabaseType.memory) {
       await SQLConnection.tryConnection(databaseConfig);
     }
+    if (databaseConfig.type !== ServerConfig.DatabaseType.sqlite) {
+      try {
+        await this.checkReadWritePermission(ProjectPath.getAbsolutePath(databaseConfig.sqlite.storage));
+      } catch (e) {
+        throw new Error('Cannot read or write sqlite storage file: ' +
+          ProjectPath.getAbsolutePath(databaseConfig.sqlite.storage));
+      }
+    }
   }