Using a proxy for tonClient

TonSdk.Client/src/HttpApi/HttpsApi.cs

@@ -1,6 +1,8 @@
 using Newtonsoft.Json;
 using System;
+using System.Net;
 using System.Net.Http;
+using System.Net.Http.Headers;
 using System.Threading.Tasks;
 using TonSdk.Core;
 using TonSdk.Core.Block;
@@ -15,7 +17,7 @@ public class HttpApiParameters
         public int? Timeout { get; set; }
         public string ApiKey { get; set; }
     }
-
+    
     public class HttpApi : IDisposable
     {
         private readonly HttpClient _httpClient;
@@ -27,7 +29,35 @@ internal HttpApi(HttpParameters httpApiParameters)
                 throw new ArgumentNullException("Endpoint field in Http options cannot be null.");
             }
 
-            _httpClient = new HttpClient();
+            if (httpApiParameters.Proxy != null)
+            {
+                WebProxy webProxy = new WebProxy
+                {
+                    Address = new Uri( httpApiParameters.Proxy.ProxyType switch
+                    {
+                        ProxyType.HTTP => "http://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.HTTPS => "https://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.Socks4 => "socks4://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.Socks5 => "socks5://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        _ => throw new ArgumentOutOfRangeException()
+                    }),
+                    Credentials = new NetworkCredential(
+                        userName: httpApiParameters.Proxy.UserName,
+                        password: httpApiParameters.Proxy.Password
+                    )
+                };
+                HttpClientHandler httpClientHandler = new HttpClientHandler
+                {
+                    Proxy = webProxy
+                };
+
+                _httpClient = new HttpClient(httpClientHandler);
+
+            }
+            else
+            {
+                _httpClient = new HttpClient();
+            }
 
             _httpClient.Timeout = TimeSpan.FromMilliseconds(Convert.ToDouble(httpApiParameters.Timeout ?? 30000));
             //httpClient.DefaultRequestHeaders.Add("Content-Type", "application/json");

TonSdk.Client/src/HttpApi/HttpsApiV3.cs

@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Net;
 using System.Net.Http;
 using System.Threading.Tasks;
 using TonSdk.Client.Stack;
@@ -23,8 +24,35 @@ public HttpApiV3(HttpParameters httpApiParameters)
                 throw new ArgumentNullException("Endpoint field in Http options cannot be null.");
             }
 
-            _httpClient = new HttpClient();
+            if (httpApiParameters.Proxy != null)
+            {
+                WebProxy webProxy = new WebProxy
+                {
+                    Address = new Uri( httpApiParameters.Proxy.ProxyType switch
+                    {
+                        ProxyType.HTTP => "http://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.HTTPS => "https://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.Socks4 => "socks4://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.Socks5 => "socks5://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        _ => throw new ArgumentOutOfRangeException()
+                    }),
+                    Credentials = new NetworkCredential(
+                        userName: httpApiParameters.Proxy.UserName,
+                        password: httpApiParameters.Proxy.Password
+                    )
+                };
+                HttpClientHandler httpClientHandler = new HttpClientHandler
+                {
+                    Proxy = webProxy
+                };
 
+                _httpClient = new HttpClient(httpClientHandler);
+
+            }
+            else
+            {
+                _httpClient = new HttpClient();
+            }
             _httpClient.Timeout = TimeSpan.FromMilliseconds(Convert.ToDouble(httpApiParameters.Timeout ?? 30000));
 
             _httpClient.DefaultRequestHeaders.Accept.Clear();

TonSdk.Client/src/HttpApi/HttpsWhales.cs

@@ -1,5 +1,6 @@
 using Newtonsoft.Json;
 using System;
+using System.Net;
 using System.Net.Http;
 using System.Threading.Tasks;
 using TonSdk.Core;
@@ -21,8 +22,35 @@ internal HttpWhales(HttpParameters httpApiParameters)
                 throw new ArgumentNullException("Endpoint field in Http options cannot be null.");
             }
 
-            _httpClient = new HttpClient();
+            if (httpApiParameters.Proxy != null)
+            {
+                WebProxy webProxy = new WebProxy
+                {
+                    Address = new Uri( httpApiParameters.Proxy.ProxyType switch
+                    {
+                        ProxyType.HTTP => "http://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.HTTPS => "https://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.Socks4 => "socks4://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        ProxyType.Socks5 => "socks5://" + httpApiParameters.Proxy.Ip + ":" + httpApiParameters.Proxy.Port,
+                        _ => throw new ArgumentOutOfRangeException()
+                    }),
+                    Credentials = new NetworkCredential(
+                        userName: httpApiParameters.Proxy.UserName,
+                        password: httpApiParameters.Proxy.Password
+                    )
+                };
+                HttpClientHandler httpClientHandler = new HttpClientHandler
+                {
+                    Proxy = webProxy
+                };
 
+                _httpClient = new HttpClient(httpClientHandler);
+
+            }
+            else
+            {
+                _httpClient = new HttpClient();
+            }
             _httpClient.Timeout = TimeSpan.FromMilliseconds(Convert.ToDouble(httpApiParameters.Timeout ?? 30000));
             //httpClient.DefaultRequestHeaders.Add("Content-Type", "application/json");
 

TonSdk.Client/src/Models/Models.cs

@@ -1,5 +1,7 @@
 using System;
 using System.Collections.Generic;
+using System.Net;
+using System.Reflection.Metadata;
 using System.Threading.Tasks;
 using TonSdk.Client.Stack;
 using TonSdk.Core;
@@ -16,13 +18,22 @@ public enum TonClientType
 
     }
 
+    public enum ProxyType
+    {
+        Socks5,
+        Socks4,
+        HTTP,
+        HTTPS
+    }
+
     public interface ITonClientOptions {}
 
     public class HttpParameters : ITonClientOptions
     {
         public string Endpoint { get; set; }
         public int? Timeout { get; set; }
         public string ApiKey { get; set; }
+        public Proxy? Proxy { get; set; }
     }
 
     public class LiteClientParameters : ITonClientOptions
@@ -38,4 +49,47 @@ public LiteClientParameters(string host, int port, string peerPublicKey)
             PeerPublicKey = peerPublicKey;
         }
     }
+
+    /// <summary>
+    /// Credentials for connecting to the proxy
+    /// </summary>
+    public partial class Proxy : ITonClientOptions
+    {
+        /// <summary>
+        /// Ip address of the proxy server
+        /// </summary>
+        public IPAddress Ip { get; set; }
+
+        private int _port;
+
+        /// <summary>
+        /// Port number of the proxy server
+        /// </summary>
+        /// <exception cref="Exception">The proxy port number goes beyond 1-65536</exception>
+        public int Port
+        {
+            set
+            {
+                if (value < 1 || value > 65536)
+                    throw new Exception("The proxy port number goes beyond 1-65536");
+                _port = value;
+            }
+            get => _port;
+        }
+
+        /// <summary>
+        /// The user's name of the credentials
+        /// </summary>
+        public string UserName { get; set; }
+
+        /// <summary>
+        /// The password's of the credentials
+        /// </summary>
+        public string Password { get; set; }
+
+        /// <summary>
+        /// Type of proxy server protocol
+        /// </summary>
+        public ProxyType ProxyType { get; set; }
+    }
 }

TonSdk.Client/src/Models/Proxy.cs

@@ -0,0 +1,30 @@
+using Org.BouncyCastle.Crypto.Parameters;
+
+namespace TonSdk.Client
+{
+    public partial class Proxy
+    {
+        public override bool Equals(object obj)
+        {
+            Proxy tmpProxy = obj as Proxy;
+            if (tmpProxy == null) return false;
+
+            if (Ip != tmpProxy.Ip) return false;
+            if (Port != tmpProxy.Port) return false;
+            if (UserName != tmpProxy.UserName) return false;
+            if (Password != tmpProxy.Password) return false;
+            if (ProxyType != tmpProxy.ProxyType) return false;
+            return true;
+        }
+
+        public override int GetHashCode()
+        {
+            int hashCode = Ip.GetHashCode();
+            hashCode = 31 * hashCode + Port.GetHashCode();
+            hashCode = 31 * hashCode + UserName.GetHashCode();
+            hashCode = 31 * hashCode + Password.GetHashCode();
+            hashCode = 31 * hashCode + ProxyType.GetHashCode();
+            return hashCode;
+        }
+    }
+}

TonSdk.Client/test/Client.test.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Net;
 using System.Numerics;
 using System.Threading.Tasks;
 using NUnit.Framework;
@@ -220,4 +221,39 @@ public async Task Test_JettonGetWalletAddress()
         Assert.That((await client_lite.Jetton.GetWalletAddress(new Address("EQBlqsm144Dq6SjbPI4jjZvA1hqTIP3CvHovbIfW_t-SCALE"), new Address("EQAEnqomwC3dg323OcdgUsvk3T38VvYawX8q6x38ulfnCn7b"))).Equals(new Address("EQA_d9IqxSQCSuwZIvH0RRSUMvWK4qrvl5ZH_nOHFH7Gxifq")), Is.EqualTo(true));
         Assert.That((await client_lite.Jetton.GetWalletAddress(new Address("EQBlqsm144Dq6SjbPI4jjZvA1hqTIP3CvHovbIfW_t-SCALE"), new Address("EQAEnqomwC3dg323OcdgUsvk3T38VvYawX8q6x38ulfnCn7b"))).Equals(new Address("EQAEnqomwC3dg323OcdgUsvk3T38VvYawX8q6x38ulfnCn7b")), Is.EqualTo(false));
     }
+
+    [Test]
+    public void Test_ProxyClass()
+    {
+        Proxy proxy1 = new Proxy
+        {
+            Ip = IPAddress.Parse("1.1.1.1"),
+            Port = 22222,
+            UserName = "WhoIsIt?",
+            Password = "54321"
+        };
+
+        Proxy proxy2 = new Proxy
+        {
+            Ip = IPAddress.Parse("1.1.1.1"),
+            Port = 22222,
+            UserName = "WhoIsIt?",
+            Password = "54321"
+        };
+
+        Proxy proxy3 = new Proxy
+        {
+            Ip = IPAddress.Parse("123.123.123.123"),
+            Port = 33333,
+            UserName = "ItsMe,Mario",
+            Password = "51423"
+        };
+
+        Assert.That(proxy1.GetHashCode(), Is.EqualTo(-1512725739));
+        Assert.That(proxy2.GetHashCode(), Is.EqualTo(-1512725739));
+        Assert.That(proxy3.GetHashCode(), Is.EqualTo(168523034));
+
+        Assert.That(proxy1.Equals(proxy2), Is.True);
+        Assert.That(proxy1.Equals(proxy3), Is.False);
+    }
 }