From cbc80e71fac7d2896ac496b0fbf22051c0cdcff7 Mon Sep 17 00:00:00 2001
From: Avi Levkovich <avi@twine-s.com>
Date: Mon, 17 Feb 2020 17:00:29 +0200
Subject: merge

---
 .../Visual_Studio/Tango.Web/TangoWebClientv2.cs    | 125 +++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 Software/Visual_Studio/Tango.Web/TangoWebClientv2.cs

(limited to 'Software/Visual_Studio/Tango.Web/TangoWebClientv2.cs')

diff --git a/Software/Visual_Studio/Tango.Web/TangoWebClientv2.cs b/Software/Visual_Studio/Tango.Web/TangoWebClientv2.cs
new file mode 100644
index 000000000..3a4ff7756
--- /dev/null
+++ b/Software/Visual_Studio/Tango.Web/TangoWebClientv2.cs
@@ -0,0 +1,125 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Authentication;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.Transport.Web;
+using Tango.Web.Security;
+
+namespace Tango.Web
+{
+    public abstract class TangoWebClientV2<TLoginRequest, TLoginResponse> : IDisposable where TLoginRequest : WebRequestMessage where TLoginResponse : WebTokenResponse
+    {
+        private WebTransportClient _client;
+        private bool _disposed;
+        private TLoginRequest _lastLoginRequest;
+
+        public String Address { get; set; }
+        public String Controller { get; private set; }
+        public String Token { get; private set; }
+        public WebToken WebToken { get; private set; }
+        public bool IsAuthenticated { get; private set; }
+
+        public TimeSpan RequestTimeout
+        {
+            get { return _client.RequestTimeout; }
+            set { _client.RequestTimeout = value; }
+        }
+
+        public TangoWebClientV2(String address, String controller)
+        {
+            _client = new WebTransportClient();
+            Controller = controller;
+            Address = address;
+        }
+
+        public TangoWebClientV2(String address, String controller, String token) : this(address, controller)
+        {
+            Token = token;
+        }
+
+        public TangoWebClientV2(TangoWebClientV2<TLoginRequest, TLoginResponse> cloned)
+        {
+            _client = new WebTransportClient();
+            Address = cloned.Address;
+            Controller = cloned.Controller;
+            IsAuthenticated = cloned.IsAuthenticated;
+            RequestTimeout = cloned.RequestTimeout;
+            WebToken = cloned.WebToken;
+            _lastLoginRequest = cloned._lastLoginRequest;
+            Token = cloned.Token;
+        }
+
+        public T Clone<T>() where T : TangoWebClientV2<TLoginRequest, TLoginResponse>
+        {
+            return Activator.CreateInstance(typeof(T), new object[] { this }) as T;
+        }
+
+        public async Task<TLoginResponse> Login(TLoginRequest request)
+        {
+            var response = await _client.PostJson<TLoginRequest, TLoginResponse>(GetActionAddress("Login"), request);
+            Token = response.AccessToken;
+            _client.AuthenticationToken = Token;
+
+            WebToken = WebToken.FromToken(Token);
+
+            _lastLoginRequest = request;
+            IsAuthenticated = true;
+            return response;
+        }
+
+        protected virtual async Task<TResponse> Post<TRequest, TResponse>(String action, TRequest request) where TRequest : class, IWebRequestMessage where TResponse : class, IWebResponseMessage
+        {
+            if (IsAuthenticated)
+            {
+                if (DateTime.UtcNow >= WebToken.Expiration)
+                {
+                    await Login(_lastLoginRequest);
+                }
+            }
+
+            try
+            {
+                var response = await _client.PostJson<TRequest, TResponse>(GetActionAddress(action), request);
+                return response;
+            }
+            catch (TokenExpiredException ex)
+            {
+                try
+                {
+                    await Login(_lastLoginRequest);
+                    var response = await _client.PostJson<TRequest, TResponse>(GetActionAddress(action), request);
+                    return response;
+                }
+                catch
+                {
+                    throw;
+                }
+            }
+            catch (Exception ex)
+            {
+                throw;
+            }
+        }
+
+        private String GetActionAddress(String action)
+        {
+            return GetServiceAddress() + action;
+        }
+
+        protected virtual String GetServiceAddress()
+        {
+            return Address + $"/api/{Controller}/";
+        }
+
+        public virtual void Dispose()
+        {
+            if (!_disposed)
+            {
+                _disposed = true;
+                _client.Dispose();
+            }
+        }
+    }
+}
-- 
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