auth finished

backend/HttpClient.cs

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+using OsuParsers.Enums.Replays;
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using System.Net;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace shitweb
+{
+    public class ApiClient
+    {
+        private const string CookiesFilePath = "cookies.json";
+        private HttpClient _client;
+        private HttpClientHandler _handler;
+
+        public ApiClient()
+        {
+            _handler = new HttpClientHandler();
+            _client = new HttpClient(_handler);
+        }
+
+        public async Task InitializeAsync()
+        {
+            LoadCookies();
+
+        }
+
+        public void SaveCookies(String cookie)
+        {
+            var cookies = _handler.CookieContainer.GetCookies(new Uri("https://proxy.illegalesachen.download"));
+            var Cookie = new CookieInfo();
+
+            Cookie.Name = "session_cookie";
+            Cookie.Value = cookie;
+            var json = JsonSerializer.Serialize(Cookie, new JsonSerializerOptions { WriteIndented = true });
+            File.WriteAllText(CookiesFilePath, json);
+            LoadCookies();
+        }
+
+        public Boolean LoadCookies()
+        {
+            if (File.Exists(CookiesFilePath))
+            {
+                var json = File.ReadAllText(CookiesFilePath);
+                var cookieInfo = JsonSerializer.Deserialize<CookieInfo>(json);
+
+                var cookie = new Cookie(cookieInfo.Name, cookieInfo.Value);
+                _handler.CookieContainer.Add(new Uri("https://proxy.illegalesachen.download"), cookie);
+                return true;
+            }
+
+            return false;
+        }
+    
+
+        public async Task UpdateSettingsAsync(string endpoint)
+        {
+            var requestContent = new JsonContent(new { endpoint = endpoint });
+            var response = await _client.PostAsync("https://proxy.illegalesachen.download/settings", requestContent);
+            try
+            {
+                response.EnsureSuccessStatusCode();
+            }
+            catch (Exception ex) { 
+                System.Console.WriteLine(ex.Message);
+            }
+        }
+    }
+
+    public class CookieInfo
+    {
+        public string Name { get; set; }
+        public string Value { get; set; }
+    }
+
+    public class JsonContent : StringContent
+    {
+        public JsonContent(object obj)
+            : base(JsonSerializer.Serialize(obj), System.Text.Encoding.UTF8, "application/json")
+        {
+        }
+    }
+}