From 7e44b56ec4112f5e131c7fb96838b18550a62c85 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Mon, 21 Nov 2022 11:08:48 +0800
Subject: Fix #1354 #1355 .

---
 .../Timeline/Configs/ApplicationConfiguration.cs   | 39 +++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

(limited to 'BackEnd/Timeline/Configs/ApplicationConfiguration.cs')

diff --git a/BackEnd/Timeline/Configs/ApplicationConfiguration.cs b/BackEnd/Timeline/Configs/ApplicationConfiguration.cs
index c7c679d1..c808e946 100644
--- a/BackEnd/Timeline/Configs/ApplicationConfiguration.cs
+++ b/BackEnd/Timeline/Configs/ApplicationConfiguration.cs
@@ -1,4 +1,8 @@
-namespace Timeline.Configs
+using System;
+using System.Collections.Generic;
+using Microsoft.Extensions.Configuration;
+
+namespace Timeline.Configs
 {
     public static class ApplicationConfiguration
     {
@@ -7,5 +11,38 @@
         public const string DatabaseFileName = "timeline.db";
         public const string DatabaseBackupDirectoryName = "backup";
         public const string FrontEndKey = "FrontEnd";
+        public const string DisableAutoBackupKey = "DisableAutoBackup";
+        public const string EnableForwardedHeadersKey = "EnableForwardedHeaders";
+        public const string ForwardedHeadersAllowedProxyHostsKey = "ForwardedHeadersAllowedProxyHosts";
+
+        public static bool CheckIsValidBoolString(string? value, string configPath, Boolean defaultValue)
+        {
+            if (value is null)
+            {
+                return defaultValue;
+            }
+
+            var true_strings = new List<string> { "true", "1", "y", "yes", "on" };
+            var false_strings = new List<string> { "false", "0", "n", "no", "off" };
+
+            if (true_strings.Contains(value.ToLowerInvariant()))
+            {
+                return true;
+            }
+            else if (false_strings.Contains(value.ToLowerInvariant()))
+            {
+                return false;
+            }
+            else
+            {
+                throw new Exception($"Invalid boolean value {value} in config {configPath}.");
+            }
+        }
+
+        public static bool GetBoolConfig(IConfiguration configuration, string configPath, bool defaultValue)
+        {
+            var value = configuration.GetValue<string?>(configPath);
+            return CheckIsValidBoolString(value, configPath, defaultValue);
+        }
     }
 }
-- 
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