From 1fc925b7bd1bff8b006afb281586230f1f6ea3b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=80=81=E4=B9=9D?= <366193849@qq.com>
Date: Thu, 11 Nov 2021 23:02:46 +0800
Subject: [PATCH] =?UTF-8?q?=E8=AF=81=E4=B9=A6=E6=AF=94=E8=BE=83?=
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---
 FastGithub.HttpServer/CaCertInstallerOfLinux.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/FastGithub.HttpServer/CaCertInstallerOfLinux.cs b/FastGithub.HttpServer/CaCertInstallerOfLinux.cs
index 676c519..12ceab3 100644
--- a/FastGithub.HttpServer/CaCertInstallerOfLinux.cs
+++ b/FastGithub.HttpServer/CaCertInstallerOfLinux.cs
@@ -2,6 +2,7 @@
 using System;
 using System.Diagnostics;
 using System.IO;
+using System.Linq;
 
 namespace FastGithub.HttpServer
 {
@@ -32,6 +33,12 @@ namespace FastGithub.HttpServer
         /// <param name="logger"></param>
         public void Install(string caCertFilePath, ILogger logger)
         {
+            var destCertFilePath = Path.Combine(this.RootCertPath, "fastgithub.crt");
+            if (File.Exists(destCertFilePath) && File.ReadAllBytes(caCertFilePath).SequenceEqual(File.ReadAllBytes(destCertFilePath)))
+            {
+                return;
+            }
+
             if (Environment.UserName != "root")
             {
                 logger.LogWarning($"无法自动安装CA证书{caCertFilePath}，因为没有root权限");
@@ -41,7 +48,6 @@ namespace FastGithub.HttpServer
             try
             {
                 Directory.CreateDirectory(this.RootCertPath);
-                var destCertFilePath = Path.Combine(this.RootCertPath, "fastgithub.crt");
                 File.Copy(caCertFilePath, destCertFilePath, overwrite: true);
                 Process.Start(this.CertUpdateFileName).WaitForExit();
             }