From dfc89dc3ab2ddcb12f77b236b777cb304d3d478d Mon Sep 17 00:00:00 2001
From: Salar Khalilzadeh <salar2k@gmail.com>
Date: Mon, 19 Dec 2016 18:30:30 +0330
Subject: [PATCH 01/33] Tests: Use OfType() instead of GetType() == typeof()

---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 3b2236a..6166067 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,8 +172,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -194,8 +193,7 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .Where(c => c.GetType() == typeof(TLChannel))
-                .Cast<TLChannel>()
+                .OfType<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -210,8 +208,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -227,8 +224,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -250,21 +246,18 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .Where(m => m.GetType() == typeof(TLMessage))
-                .Cast<TLMessage>()
-                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
+                .OfType<TLMessage>()
+                .Where(m => m.media != null)
                 .Select(m => m.media)
-                .Cast<TLMessageMediaDocument>()
-                .Where(md => md.document.GetType() == typeof(TLDocument))
+                .OfType<TLMessageMediaDocument>()
                 .Select(md => md.document)
-                .Cast<TLDocument>()
+                .OfType<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -288,8 +281,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 31df61a479b6876eeb5bb626c42e0ae6bc63195a Mon Sep 17 00:00:00 2001
From: Salar Khalilzadeh <salar2k@gmail.com>
Date: Mon, 19 Dec 2016 18:30:30 +0330
Subject: [PATCH 02/33] Tests: Use OfType() instead of GetType() == typeof()

---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 3b2236a..6166067 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,8 +172,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -194,8 +193,7 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .Where(c => c.GetType() == typeof(TLChannel))
-                .Cast<TLChannel>()
+                .OfType<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -210,8 +208,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -227,8 +224,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -250,21 +246,18 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .Where(m => m.GetType() == typeof(TLMessage))
-                .Cast<TLMessage>()
-                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
+                .OfType<TLMessage>()
+                .Where(m => m.media != null)
                 .Select(m => m.media)
-                .Cast<TLMessageMediaDocument>()
-                .Where(md => md.document.GetType() == typeof(TLDocument))
+                .OfType<TLMessageMediaDocument>()
                 .Select(md => md.document)
-                .Cast<TLDocument>()
+                .OfType<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -288,8 +281,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 14c0c21bcf4a42df517ba641e63d71cdab6ad816 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Wed, 21 Dec 2016 12:18:40 +0330
Subject: [PATCH 03/33] Revert "Tests: Use OfType() instead of GetType() ==
 typeof()"

This reverts commit 31df61a479b6876eeb5bb626c42e0ae6bc63195a.
---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 6166067..3b2236a 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,7 +172,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -193,7 +194,8 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .OfType<TLChannel>()
+                .Where(c => c.GetType() == typeof(TLChannel))
+                .Cast<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -208,7 +210,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -224,7 +227,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -246,18 +250,21 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .OfType<TLMessage>()
-                .Where(m => m.media != null)
+                .Where(m => m.GetType() == typeof(TLMessage))
+                .Cast<TLMessage>()
+                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
                 .Select(m => m.media)
-                .OfType<TLMessageMediaDocument>()
+                .Cast<TLMessageMediaDocument>()
+                .Where(md => md.document.GetType() == typeof(TLDocument))
                 .Select(md => md.document)
-                .OfType<TLDocument>()
+                .Cast<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -281,7 +288,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 0672086943e14654451163e044e2443cd6a29df0 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Wed, 21 Dec 2016 12:18:51 +0330
Subject: [PATCH 04/33] Revert "Revert "Tests: Use OfType() instead of
 GetType() == typeof()""

This reverts commit 14c0c21bcf4a42df517ba641e63d71cdab6ad816.
---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 3b2236a..6166067 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,8 +172,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -194,8 +193,7 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .Where(c => c.GetType() == typeof(TLChannel))
-                .Cast<TLChannel>()
+                .OfType<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -210,8 +208,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -227,8 +224,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -250,21 +246,18 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .Where(m => m.GetType() == typeof(TLMessage))
-                .Cast<TLMessage>()
-                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
+                .OfType<TLMessage>()
+                .Where(m => m.media != null)
                 .Select(m => m.media)
-                .Cast<TLMessageMediaDocument>()
-                .Where(md => md.document.GetType() == typeof(TLDocument))
+                .OfType<TLMessageMediaDocument>()
                 .Select(md => md.document)
-                .Cast<TLDocument>()
+                .OfType<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -288,8 +281,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 47d1c10c9dc57074dcf3ad2120b1bc5617508230 Mon Sep 17 00:00:00 2001
From: Mikhail <gmardok@gmail.com>
Date: Wed, 28 Dec 2016 15:37:34 +0100
Subject: [PATCH 05/33] Search user by username with send message test. (#356)

* Search user by username with send message test.
---
 TLSharp.Core/TelegramClient.cs     | 17 +++++++++++++
 TLSharp.Tests.NUnit/Test.cs        |  6 +++++
 TLSharp.Tests.VS/TLSharpTestsVs.cs |  6 +++++
 TLSharp.Tests/TLSharpTests.cs      | 38 ++++++++++++++++++++++++++++++
 4 files changed, 67 insertions(+)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 7cf7e5d..732adad 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -337,6 +337,23 @@ namespace TLSharp.Core
             await _sender.SendPingAsync();
         }
 
+        /// <summary>
+        /// Serch user or chat. API: contacts.search#11f812d8 q:string limit:int = contacts.Found;
+        /// </summary>
+        /// <param name="q">User or chat name</param>
+        /// <param name="limit">Max result count</param>
+        /// <returns></returns>
+        public async Task<TLFound> SearchUserAsync(string q, int limit = 10)
+        {
+            var r = new TeleSharp.TL.Contacts.TLRequestSearch
+            {
+                q = q,
+                limit = limit
+            };
+
+            return await SendRequestAsync<TLFound>(r);
+        }
+
         private void OnUserAuthenticated(TLUser TLUser)
         {
             _session.TLUser = TLUser;
diff --git a/TLSharp.Tests.NUnit/Test.cs b/TLSharp.Tests.NUnit/Test.cs
index 7c390db..40e54ac 100644
--- a/TLSharp.Tests.NUnit/Test.cs
+++ b/TLSharp.Tests.NUnit/Test.cs
@@ -75,5 +75,11 @@ namespace TLSharp.Tests
         {
             await base.FloodExceptionShouldNotCauseCannotReadPackageLengthError();
         }
+
+        [Test]
+        public override async Task SendMessageByUserNameTest()
+        {
+            await base.SendMessageByUserNameTest();
+        }
     }
 }
diff --git a/TLSharp.Tests.VS/TLSharpTestsVs.cs b/TLSharp.Tests.VS/TLSharpTestsVs.cs
index fff25b6..8f6c58d 100644
--- a/TLSharp.Tests.VS/TLSharpTestsVs.cs
+++ b/TLSharp.Tests.VS/TLSharpTestsVs.cs
@@ -73,5 +73,11 @@ namespace TLSharp.Tests
         {
             await base.FloodExceptionShouldNotCauseCannotReadPackageLengthError();
         }
+
+        [TestMethod]
+        public override async Task SendMessageByUserNameTest()
+        {
+            await base.SendMessageByUserNameTest();
+        }
     }
 }
diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 6166067..487b535 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -323,6 +323,7 @@ namespace TLSharp.Tests
             var result = await client.IsPhoneRegisteredAsync(NumberToAuthenticate);
             Assert.IsTrue(result);
         }
+
         public virtual async Task FloodExceptionShouldNotCauseCannotReadPackageLengthError()
         {
             for (int i = 0; i < 50; i++)
@@ -338,5 +339,42 @@ namespace TLSharp.Tests
                 }
             }
         }
+
+        public virtual async Task SendMessageByUserNameTest()
+        {
+            UserNameToSendMessage = ConfigurationManager.AppSettings[nameof(UserNameToSendMessage)];
+            if (string.IsNullOrWhiteSpace(UserNameToSendMessage))
+                throw new Exception($"Please fill the '{nameof(UserNameToSendMessage)}' setting in app.config file first");
+
+            var client = NewClient();
+
+            await client.ConnectAsync();
+
+            var result = await client.SearchUserAsync(UserNameToSendMessage);
+
+            var user = result.users.lists
+                .Where(x => x.GetType() == typeof(TLUser))
+                .OfType<TLUser>()
+                .FirstOrDefault(x => x.username == UserNameToSendMessage.TrimStart('@'));
+
+            if (user == null)
+            {
+                var contacts = await client.GetContactsAsync();
+
+                user = contacts.users.lists
+                    .Where(x => x.GetType() == typeof(TLUser))
+                    .OfType<TLUser>()
+                    .FirstOrDefault(x => x.username == UserNameToSendMessage.TrimStart('@'));
+            }
+
+            if (user == null)
+            {
+                throw new System.Exception("Username was not found: " + UserNameToSendMessage);
+            }
+
+            await client.SendTypingAsync(new TLInputPeerUser() { user_id = user.id });
+            Thread.Sleep(3000);
+            await client.SendMessageAsync(new TLInputPeerUser() { user_id = user.id }, "TEST");
+        }
     }
 }

From 5e6cf484903764e4d13637c5b9fb2ae26e94c084 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Mon, 9 Jan 2017 18:25:55 +0100
Subject: [PATCH 06/33] Add GetHistoryAsync() to TelegramClient

---
 README.md                      |  1 +
 TLSharp.Core/TelegramClient.cs | 17 +++++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8cdba23..4304ce5 100644
--- a/README.md
+++ b/README.md
@@ -161,6 +161,7 @@ For your convenience TLSharp have wrappers for several Telegram API methods. You
 1. GetFile
 1. UploadFile
 1. SendPingAsync
+1. GetHistoryAsync
 
 **What if you can't find needed method at the list?**
 
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 732adad..1847f4b 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -4,7 +4,6 @@ using System.Linq;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading.Tasks;
-using System.Web;
 using TeleSharp.TL;
 using TeleSharp.TL.Account;
 using TeleSharp.TL.Auth;
@@ -15,7 +14,6 @@ using TeleSharp.TL.Upload;
 using TLSharp.Core.Auth;
 using TLSharp.Core.MTProto.Crypto;
 using TLSharp.Core.Network;
-using TLSharp.Core.Requests;
 using TLSharp.Core.Utils;
 using TLAuthorization = TeleSharp.TL.Auth.TLAuthorization;
 
@@ -335,6 +333,21 @@ namespace TLSharp.Core
         public async Task SendPingAsync()
         {
             await _sender.SendPingAsync();
+        }
+
+        public async Task<TLAbsMessages> GetHistoryAsync(TLAbsInputPeer peer, int offset, int max_id, int limit)
+        {
+            if (!IsUserAuthorized())
+                throw new InvalidOperationException("Authorize user first!");
+
+            var req = new TLRequestGetHistory()
+            {
+                peer = peer,
+                add_offset = offset,
+                max_id = max_id,
+                limit = limit
+            };
+            return await SendRequestAsync<TLAbsMessages>(req);
         }
 
         /// <summary>

From a753a1ab136a287559b028ccc7522212882140e0 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Thu, 19 Jan 2017 19:31:27 +0100
Subject: [PATCH 07/33] Add offset parameter to GetFile() method

---
 TLSharp.Core/TelegramClient.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 1847f4b..9674ee8 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -290,7 +290,7 @@ namespace TLSharp.Core
             });
         }
 
-        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize)
+        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize, int offset = 0)
         {
             TLFile result = null;
             try
@@ -298,7 +298,8 @@ namespace TLSharp.Core
                 result = await SendRequestAsync<TLFile>(new TLRequestGetFile()
                 {
                     location = location,
-                    limit = filePartSize
+                    limit = filePartSize,
+                    offset = offset
                 });
             }
             catch (FileMigrationException ex)

From 48077961ae730f84f1624f131dd42eb70db18cb6 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Fri, 27 Jan 2017 10:58:47 +0100
Subject: [PATCH 08/33] Custom TCP hanlder to allow HTTP proxy auth

---
 TLSharp.Core/Network/TcpTransport.cs | 18 ++++++++++++------
 TLSharp.Core/TelegramClient.cs       |  9 ++++++---
 2 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/TLSharp.Core/Network/TcpTransport.cs b/TLSharp.Core/Network/TcpTransport.cs
index 9092828..254153e 100644
--- a/TLSharp.Core/Network/TcpTransport.cs
+++ b/TLSharp.Core/Network/TcpTransport.cs
@@ -1,22 +1,28 @@
 using System;
-using System.Linq;
 using System.Net;
 using System.Net.Sockets;
 using System.Threading.Tasks;
 
 namespace TLSharp.Core.Network
 {
+    public delegate TcpClient TcpClientConnectionHandler(string address, int port);
+
     public class TcpTransport : IDisposable
     {
         private readonly TcpClient _tcpClient;
         private int sendCounter = 0;
 
-        public TcpTransport(string address, int port)
+        public TcpTransport(string address, int port, TcpClientConnectionHandler handler = null)
         {
-            _tcpClient = new TcpClient();
+            if (handler == null)
+            {
+                _tcpClient = new TcpClient();
 
-            var ipAddress = IPAddress.Parse(address);
-            _tcpClient.Connect(ipAddress, port);
+                var ipAddress = IPAddress.Parse(address);
+                _tcpClient.Connect(ipAddress, port);
+            }
+            else
+                _tcpClient = handler(address, port);
         }
 
         public async Task Send(byte[] packet)
@@ -84,6 +90,6 @@ namespace TLSharp.Core.Network
         {
             if (_tcpClient.Connected)
                 _tcpClient.Close();
-        }
+        }
     }
 }
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 9674ee8..d4efdb1 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -28,8 +28,10 @@ namespace TLSharp.Core
         private int _apiId = 0;
         private Session _session;
         private List<TLDcOption> dcOptions;
+        private TcpClientConnectionHandler _handler;
 
-        public TelegramClient(int apiId, string apiHash, ISessionStore store = null, string sessionUserId = "session")
+        public TelegramClient(int apiId, string apiHash,
+            ISessionStore store = null, string sessionUserId = "session", TcpClientConnectionHandler handler = null)
         {
             if (apiId == default(int))
                 throw new MissingApiConfigurationException("API_ID");
@@ -42,9 +44,10 @@ namespace TLSharp.Core
             TLContext.Init();
             _apiHash = apiHash;
             _apiId = apiId;
+            _handler = handler;
 
             _session = Session.TryLoadOrCreateNew(store, sessionUserId);
-            _transport = new TcpTransport(_session.ServerAddress, _session.Port);
+            _transport = new TcpTransport(_session.ServerAddress, _session.Port, _handler);
         }
 
         public async Task<bool> ConnectAsync(bool reconnect = false)
@@ -85,7 +88,7 @@ namespace TLSharp.Core
 
             var dc = dcOptions.First(d => d.id == dcId);
 
-            _transport = new TcpTransport(dc.ip_address, dc.port);
+            _transport = new TcpTransport(dc.ip_address, dc.port, _handler);
             _session.ServerAddress = dc.ip_address;
             _session.Port = dc.port;
 

From f6ef04ed01934fae52f58b694ac51efcb4fb9832 Mon Sep 17 00:00:00 2001
From: Ilya Pirozhenko <ilya.pir@gmail.com>
Date: Sun, 29 Jan 2017 17:06:22 +0300
Subject: [PATCH 09/33] Update README.md

---
 README.md | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 4304ce5..5f4cd51 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,21 @@
 #TLSharp
 
+<a href="https://www.paypal.me/IPirozhenko" title="Support project"><img src="https://img.shields.io/badge/Support%20project-paypal-brightgreen.svg"></a>
 [![Join the chat at https://gitter.im/TLSharp/Lobby](https://badges.gitter.im/TLSharp/Lobby.svg)](https://gitter.im/TLSharp/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Build status](https://ci.appveyor.com/api/projects/status/95rl618ch5c4h2fa?svg=true)](https://ci.appveyor.com/project/sochix/tlsharp)
 [![NuGet version](https://badge.fury.io/nu/TLSharp.svg)](https://badge.fury.io/nu/TLSharp)
+<a href="https://github.com/sochix/telegram-tools"><img src=https://img.shields.io/badge/Telegram%20Tools-1.0.0-blue.svg /></a>
 
 _Unofficial_ Telegram (http://telegram.org) client library implemented in C#. Latest TL scheme supported, thanks to Afshin Arani
 
-**Consider donation to speed up development process.** 
-
-Bitcoin wallet: **3K1ocweFgaHnAibJ3n6hX7RNZWFTFcJjUe**
-
 It's a perfect fit for any developer who would like to send data directly to Telegram users or write own custom Telegram client.
 
 :star2: If you :heart: library, please star it! :star2:
 
+If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
+
+<a href="https://github.com/sochix/telegram-tools"><img src="https://github.com/sochix/telegram-tools/raw/master/demo.gif" /></a>
+
 # Table of contents?
 
 - [How do I add this to my project?](#how-do-i-add-this-to-my-project)
@@ -187,7 +189,7 @@ Latest scheme in JSON format you can find [here](https://gist.github.com/aarani/
 
 # Contributing
 
-Contributing is highly appreciated!
+Contributing is highly appreciated! Donations required <a href="https://www.paypal.me/IPirozhenko" title="Support project"><img src="https://img.shields.io/badge/Support%20project-paypal-brightgreen.svg"></a>
 
 ## What things can I Implement (Project Roadmap)?
 
@@ -233,7 +235,7 @@ Without information listen above your issue will be closed.
 
 # Donations
 Thanks for donations! It's highly appreciated. 
-Bitcoin wallet: **3K1ocweFgaHnAibJ3n6hX7RNZWFTFcJjUe**
+<a href="https://www.paypal.me/IPirozhenko" title="Support project"><img src="https://img.shields.io/badge/Support%20project-paypal-brightgreen.svg"></a>
 
 List of donators:
 * [mtbitcoin](https://github.com/mtbitcoin)

From 26aa35b88aa3ccfc64a108303fa34e078ed15640 Mon Sep 17 00:00:00 2001
From: Barsham Sotoudeh <barsham@gmail.com>
Date: Sat, 18 Feb 2017 02:16:55 +1100
Subject: [PATCH 10/33] Add missing "offset" parameter in catch block of the
 GetFile method (#402)

This offset optional parameter was added in https://github.com/sochix/TLSharp/commit/a753a1ab136a287559b028ccc7522212882140e0
---
 TLSharp.Core/TelegramClient.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index d4efdb1..a4fa06a 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -320,7 +320,7 @@ namespace TLSharp.Core
                     bytes = exportedAuth.bytes,
                     id = exportedAuth.id
                 });
-                result = await GetFile(location, filePartSize);
+                result = await GetFile(location, filePartSize, offset);
 
                 _session.AuthKey = authKey;
                 _session.TimeOffset = timeOffset;

From 1697db9d7fb5cd6d7c41125bde682b56b997ee1e Mon Sep 17 00:00:00 2001
From: Ilya Pirozhenko <ilya.pir@gmail.com>
Date: Tue, 28 Feb 2017 16:45:20 +0300
Subject: [PATCH 11/33] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5f4cd51..54691f8 100644
--- a/README.md
+++ b/README.md
@@ -12,9 +12,9 @@ It's a perfect fit for any developer who would like to send data directly to Tel
 
 :star2: If you :heart: library, please star it! :star2:
 
-If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
+If you have difficulties with library usage, I can support you ( 75$/hour ). Contact me at @sochix.
 
-<a href="https://github.com/sochix/telegram-tools"><img src="https://github.com/sochix/telegram-tools/raw/master/demo.gif" /></a>
+If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
 
 # Table of contents?
 

From 9f14656465facbc82b703790f84e051944ed67f7 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Thu, 2 Mar 2017 09:52:12 +0330
Subject: [PATCH 12/33] Implementing IsConnected

---
 TLSharp.Core/Network/TcpTransport.cs | 13 +++++++++++--
 TLSharp.Core/TelegramClient.cs       | 11 +++++++++--
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/TLSharp.Core/Network/TcpTransport.cs b/TLSharp.Core/Network/TcpTransport.cs
index 254153e..31bd6b4 100644
--- a/TLSharp.Core/Network/TcpTransport.cs
+++ b/TLSharp.Core/Network/TcpTransport.cs
@@ -84,8 +84,17 @@ namespace TLSharp.Core.Network
             }
 
             return new TcpMessage(seq, body);
-        }
-
+        }
+
+        public bool IsConnected
+        {
+            get
+            {
+                return this._tcpClient.Connected;
+            }
+        }
+
+
         public void Dispose()
         {
             if (_tcpClient.Connected)
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index a4fa06a..228c9b5 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -377,8 +377,15 @@ namespace TLSharp.Core
             _session.SessionExpires = int.MaxValue;
 
             _session.Save();
-        }
-
+        }
+
+        public bool IsConnected()
+        {
+            if (this._transport == null)
+                return false;
+            return this._transport.IsConnected;
+        }
+
         public void Dispose()
         {
             if (_transport != null)

From 25e45b52f6a2af6eb8f39391c95b6d73539a6538 Mon Sep 17 00:00:00 2001
From: Salar Khalilzadeh <salar2k@gmail.com>
Date: Mon, 19 Dec 2016 18:30:30 +0330
Subject: [PATCH 13/33] Tests: Use OfType() instead of GetType() == typeof()

---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 3b2236a..6166067 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,8 +172,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -194,8 +193,7 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .Where(c => c.GetType() == typeof(TLChannel))
-                .Cast<TLChannel>()
+                .OfType<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -210,8 +208,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -227,8 +224,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -250,21 +246,18 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .Where(m => m.GetType() == typeof(TLMessage))
-                .Cast<TLMessage>()
-                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
+                .OfType<TLMessage>()
+                .Where(m => m.media != null)
                 .Select(m => m.media)
-                .Cast<TLMessageMediaDocument>()
-                .Where(md => md.document.GetType() == typeof(TLDocument))
+                .OfType<TLMessageMediaDocument>()
                 .Select(md => md.document)
-                .Cast<TLDocument>()
+                .OfType<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -288,8 +281,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From a53351d65ed0288a58e99d83219cef6ff347587c Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Wed, 21 Dec 2016 12:18:40 +0330
Subject: [PATCH 14/33] Revert "Tests: Use OfType() instead of GetType() ==
 typeof()"

This reverts commit 31df61a479b6876eeb5bb626c42e0ae6bc63195a.
---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 6166067..3b2236a 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,7 +172,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -193,7 +194,8 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .OfType<TLChannel>()
+                .Where(c => c.GetType() == typeof(TLChannel))
+                .Cast<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -208,7 +210,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -224,7 +227,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -246,18 +250,21 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .OfType<TLMessage>()
-                .Where(m => m.media != null)
+                .Where(m => m.GetType() == typeof(TLMessage))
+                .Cast<TLMessage>()
+                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
                 .Select(m => m.media)
-                .OfType<TLMessageMediaDocument>()
+                .Cast<TLMessageMediaDocument>()
+                .Where(md => md.document.GetType() == typeof(TLDocument))
                 .Select(md => md.document)
-                .OfType<TLDocument>()
+                .Cast<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -281,7 +288,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From a792e4dc067a43d15edebffb3ae18737173424fa Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Wed, 21 Dec 2016 12:18:51 +0330
Subject: [PATCH 15/33] Revert "Revert "Tests: Use OfType() instead of
 GetType() == typeof()""

This reverts commit 14c0c21bcf4a42df517ba641e63d71cdab6ad816.
---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 3b2236a..6166067 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,8 +172,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -194,8 +193,7 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .Where(c => c.GetType() == typeof(TLChannel))
-                .Cast<TLChannel>()
+                .OfType<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -210,8 +208,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -227,8 +224,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -250,21 +246,18 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .Where(m => m.GetType() == typeof(TLMessage))
-                .Cast<TLMessage>()
-                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
+                .OfType<TLMessage>()
+                .Where(m => m.media != null)
                 .Select(m => m.media)
-                .Cast<TLMessageMediaDocument>()
-                .Where(md => md.document.GetType() == typeof(TLDocument))
+                .OfType<TLMessageMediaDocument>()
                 .Select(md => md.document)
-                .Cast<TLDocument>()
+                .OfType<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -288,8 +281,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 703e0a235835fd8a87a9b232650557a836a46ff0 Mon Sep 17 00:00:00 2001
From: Mikhail <gmardok@gmail.com>
Date: Wed, 28 Dec 2016 15:37:34 +0100
Subject: [PATCH 16/33] Search user by username with send message test. (#356)

* Search user by username with send message test.
---
 TLSharp.Core/TelegramClient.cs     | 17 +++++++++++++
 TLSharp.Tests.NUnit/Test.cs        |  6 +++++
 TLSharp.Tests.VS/TLSharpTestsVs.cs |  6 +++++
 TLSharp.Tests/TLSharpTests.cs      | 38 ++++++++++++++++++++++++++++++
 4 files changed, 67 insertions(+)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 7cf7e5d..732adad 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -337,6 +337,23 @@ namespace TLSharp.Core
             await _sender.SendPingAsync();
         }
 
+        /// <summary>
+        /// Serch user or chat. API: contacts.search#11f812d8 q:string limit:int = contacts.Found;
+        /// </summary>
+        /// <param name="q">User or chat name</param>
+        /// <param name="limit">Max result count</param>
+        /// <returns></returns>
+        public async Task<TLFound> SearchUserAsync(string q, int limit = 10)
+        {
+            var r = new TeleSharp.TL.Contacts.TLRequestSearch
+            {
+                q = q,
+                limit = limit
+            };
+
+            return await SendRequestAsync<TLFound>(r);
+        }
+
         private void OnUserAuthenticated(TLUser TLUser)
         {
             _session.TLUser = TLUser;
diff --git a/TLSharp.Tests.NUnit/Test.cs b/TLSharp.Tests.NUnit/Test.cs
index 7c390db..40e54ac 100644
--- a/TLSharp.Tests.NUnit/Test.cs
+++ b/TLSharp.Tests.NUnit/Test.cs
@@ -75,5 +75,11 @@ namespace TLSharp.Tests
         {
             await base.FloodExceptionShouldNotCauseCannotReadPackageLengthError();
         }
+
+        [Test]
+        public override async Task SendMessageByUserNameTest()
+        {
+            await base.SendMessageByUserNameTest();
+        }
     }
 }
diff --git a/TLSharp.Tests.VS/TLSharpTestsVs.cs b/TLSharp.Tests.VS/TLSharpTestsVs.cs
index fff25b6..8f6c58d 100644
--- a/TLSharp.Tests.VS/TLSharpTestsVs.cs
+++ b/TLSharp.Tests.VS/TLSharpTestsVs.cs
@@ -73,5 +73,11 @@ namespace TLSharp.Tests
         {
             await base.FloodExceptionShouldNotCauseCannotReadPackageLengthError();
         }
+
+        [TestMethod]
+        public override async Task SendMessageByUserNameTest()
+        {
+            await base.SendMessageByUserNameTest();
+        }
     }
 }
diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 6166067..487b535 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -323,6 +323,7 @@ namespace TLSharp.Tests
             var result = await client.IsPhoneRegisteredAsync(NumberToAuthenticate);
             Assert.IsTrue(result);
         }
+
         public virtual async Task FloodExceptionShouldNotCauseCannotReadPackageLengthError()
         {
             for (int i = 0; i < 50; i++)
@@ -338,5 +339,42 @@ namespace TLSharp.Tests
                 }
             }
         }
+
+        public virtual async Task SendMessageByUserNameTest()
+        {
+            UserNameToSendMessage = ConfigurationManager.AppSettings[nameof(UserNameToSendMessage)];
+            if (string.IsNullOrWhiteSpace(UserNameToSendMessage))
+                throw new Exception($"Please fill the '{nameof(UserNameToSendMessage)}' setting in app.config file first");
+
+            var client = NewClient();
+
+            await client.ConnectAsync();
+
+            var result = await client.SearchUserAsync(UserNameToSendMessage);
+
+            var user = result.users.lists
+                .Where(x => x.GetType() == typeof(TLUser))
+                .OfType<TLUser>()
+                .FirstOrDefault(x => x.username == UserNameToSendMessage.TrimStart('@'));
+
+            if (user == null)
+            {
+                var contacts = await client.GetContactsAsync();
+
+                user = contacts.users.lists
+                    .Where(x => x.GetType() == typeof(TLUser))
+                    .OfType<TLUser>()
+                    .FirstOrDefault(x => x.username == UserNameToSendMessage.TrimStart('@'));
+            }
+
+            if (user == null)
+            {
+                throw new System.Exception("Username was not found: " + UserNameToSendMessage);
+            }
+
+            await client.SendTypingAsync(new TLInputPeerUser() { user_id = user.id });
+            Thread.Sleep(3000);
+            await client.SendMessageAsync(new TLInputPeerUser() { user_id = user.id }, "TEST");
+        }
     }
 }

From fe4486e8eeb1ca83ba9636d6fe6968345c42a4ab Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Mon, 9 Jan 2017 18:25:55 +0100
Subject: [PATCH 17/33] Add GetHistoryAsync() to TelegramClient

---
 README.md                      |  1 +
 TLSharp.Core/TelegramClient.cs | 17 +++++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8cdba23..4304ce5 100644
--- a/README.md
+++ b/README.md
@@ -161,6 +161,7 @@ For your convenience TLSharp have wrappers for several Telegram API methods. You
 1. GetFile
 1. UploadFile
 1. SendPingAsync
+1. GetHistoryAsync
 
 **What if you can't find needed method at the list?**
 
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 732adad..1847f4b 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -4,7 +4,6 @@ using System.Linq;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading.Tasks;
-using System.Web;
 using TeleSharp.TL;
 using TeleSharp.TL.Account;
 using TeleSharp.TL.Auth;
@@ -15,7 +14,6 @@ using TeleSharp.TL.Upload;
 using TLSharp.Core.Auth;
 using TLSharp.Core.MTProto.Crypto;
 using TLSharp.Core.Network;
-using TLSharp.Core.Requests;
 using TLSharp.Core.Utils;
 using TLAuthorization = TeleSharp.TL.Auth.TLAuthorization;
 
@@ -335,6 +333,21 @@ namespace TLSharp.Core
         public async Task SendPingAsync()
         {
             await _sender.SendPingAsync();
+        }
+
+        public async Task<TLAbsMessages> GetHistoryAsync(TLAbsInputPeer peer, int offset, int max_id, int limit)
+        {
+            if (!IsUserAuthorized())
+                throw new InvalidOperationException("Authorize user first!");
+
+            var req = new TLRequestGetHistory()
+            {
+                peer = peer,
+                add_offset = offset,
+                max_id = max_id,
+                limit = limit
+            };
+            return await SendRequestAsync<TLAbsMessages>(req);
         }
 
         /// <summary>

From 78ae7928e089d0eaed6b64b60b9c42acdb28eb52 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Thu, 19 Jan 2017 19:31:27 +0100
Subject: [PATCH 18/33] Add offset parameter to GetFile() method

---
 TLSharp.Core/TelegramClient.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 1847f4b..9674ee8 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -290,7 +290,7 @@ namespace TLSharp.Core
             });
         }
 
-        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize)
+        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize, int offset = 0)
         {
             TLFile result = null;
             try
@@ -298,7 +298,8 @@ namespace TLSharp.Core
                 result = await SendRequestAsync<TLFile>(new TLRequestGetFile()
                 {
                     location = location,
-                    limit = filePartSize
+                    limit = filePartSize,
+                    offset = offset
                 });
             }
             catch (FileMigrationException ex)

From ac6ec0cb8e3a3777a277d67379e765956031e19d Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Fri, 27 Jan 2017 10:58:47 +0100
Subject: [PATCH 19/33] Custom TCP hanlder to allow HTTP proxy auth

---
 TLSharp.Core/Network/TcpTransport.cs | 18 ++++++++++++------
 TLSharp.Core/TelegramClient.cs       |  9 ++++++---
 2 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/TLSharp.Core/Network/TcpTransport.cs b/TLSharp.Core/Network/TcpTransport.cs
index 9092828..254153e 100644
--- a/TLSharp.Core/Network/TcpTransport.cs
+++ b/TLSharp.Core/Network/TcpTransport.cs
@@ -1,22 +1,28 @@
 using System;
-using System.Linq;
 using System.Net;
 using System.Net.Sockets;
 using System.Threading.Tasks;
 
 namespace TLSharp.Core.Network
 {
+    public delegate TcpClient TcpClientConnectionHandler(string address, int port);
+
     public class TcpTransport : IDisposable
     {
         private readonly TcpClient _tcpClient;
         private int sendCounter = 0;
 
-        public TcpTransport(string address, int port)
+        public TcpTransport(string address, int port, TcpClientConnectionHandler handler = null)
         {
-            _tcpClient = new TcpClient();
+            if (handler == null)
+            {
+                _tcpClient = new TcpClient();
 
-            var ipAddress = IPAddress.Parse(address);
-            _tcpClient.Connect(ipAddress, port);
+                var ipAddress = IPAddress.Parse(address);
+                _tcpClient.Connect(ipAddress, port);
+            }
+            else
+                _tcpClient = handler(address, port);
         }
 
         public async Task Send(byte[] packet)
@@ -84,6 +90,6 @@ namespace TLSharp.Core.Network
         {
             if (_tcpClient.Connected)
                 _tcpClient.Close();
-        }
+        }
     }
 }
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 9674ee8..d4efdb1 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -28,8 +28,10 @@ namespace TLSharp.Core
         private int _apiId = 0;
         private Session _session;
         private List<TLDcOption> dcOptions;
+        private TcpClientConnectionHandler _handler;
 
-        public TelegramClient(int apiId, string apiHash, ISessionStore store = null, string sessionUserId = "session")
+        public TelegramClient(int apiId, string apiHash,
+            ISessionStore store = null, string sessionUserId = "session", TcpClientConnectionHandler handler = null)
         {
             if (apiId == default(int))
                 throw new MissingApiConfigurationException("API_ID");
@@ -42,9 +44,10 @@ namespace TLSharp.Core
             TLContext.Init();
             _apiHash = apiHash;
             _apiId = apiId;
+            _handler = handler;
 
             _session = Session.TryLoadOrCreateNew(store, sessionUserId);
-            _transport = new TcpTransport(_session.ServerAddress, _session.Port);
+            _transport = new TcpTransport(_session.ServerAddress, _session.Port, _handler);
         }
 
         public async Task<bool> ConnectAsync(bool reconnect = false)
@@ -85,7 +88,7 @@ namespace TLSharp.Core
 
             var dc = dcOptions.First(d => d.id == dcId);
 
-            _transport = new TcpTransport(dc.ip_address, dc.port);
+            _transport = new TcpTransport(dc.ip_address, dc.port, _handler);
             _session.ServerAddress = dc.ip_address;
             _session.Port = dc.port;
 

From f26ab3afa7667fbe7fa22b764f24e5e4d1a3c778 Mon Sep 17 00:00:00 2001
From: Ilya Pirozhenko <ilya.pir@gmail.com>
Date: Sun, 29 Jan 2017 17:06:22 +0300
Subject: [PATCH 20/33] Update README.md

---
 README.md | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 4304ce5..5f4cd51 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,21 @@
 #TLSharp
 
+<a href="https://www.paypal.me/IPirozhenko" title="Support project"><img src="https://img.shields.io/badge/Support%20project-paypal-brightgreen.svg"></a>
 [![Join the chat at https://gitter.im/TLSharp/Lobby](https://badges.gitter.im/TLSharp/Lobby.svg)](https://gitter.im/TLSharp/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Build status](https://ci.appveyor.com/api/projects/status/95rl618ch5c4h2fa?svg=true)](https://ci.appveyor.com/project/sochix/tlsharp)
 [![NuGet version](https://badge.fury.io/nu/TLSharp.svg)](https://badge.fury.io/nu/TLSharp)
+<a href="https://github.com/sochix/telegram-tools"><img src=https://img.shields.io/badge/Telegram%20Tools-1.0.0-blue.svg /></a>
 
 _Unofficial_ Telegram (http://telegram.org) client library implemented in C#. Latest TL scheme supported, thanks to Afshin Arani
 
-**Consider donation to speed up development process.** 
-
-Bitcoin wallet: **3K1ocweFgaHnAibJ3n6hX7RNZWFTFcJjUe**
-
 It's a perfect fit for any developer who would like to send data directly to Telegram users or write own custom Telegram client.
 
 :star2: If you :heart: library, please star it! :star2:
 
+If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
+
+<a href="https://github.com/sochix/telegram-tools"><img src="https://github.com/sochix/telegram-tools/raw/master/demo.gif" /></a>
+
 # Table of contents?
 
 - [How do I add this to my project?](#how-do-i-add-this-to-my-project)
@@ -187,7 +189,7 @@ Latest scheme in JSON format you can find [here](https://gist.github.com/aarani/
 
 # Contributing
 
-Contributing is highly appreciated!
+Contributing is highly appreciated! Donations required <a href="https://www.paypal.me/IPirozhenko" title="Support project"><img src="https://img.shields.io/badge/Support%20project-paypal-brightgreen.svg"></a>
 
 ## What things can I Implement (Project Roadmap)?
 
@@ -233,7 +235,7 @@ Without information listen above your issue will be closed.
 
 # Donations
 Thanks for donations! It's highly appreciated. 
-Bitcoin wallet: **3K1ocweFgaHnAibJ3n6hX7RNZWFTFcJjUe**
+<a href="https://www.paypal.me/IPirozhenko" title="Support project"><img src="https://img.shields.io/badge/Support%20project-paypal-brightgreen.svg"></a>
 
 List of donators:
 * [mtbitcoin](https://github.com/mtbitcoin)

From 4c1a0b8be00ad56db072be5560214d96ee9f3cb2 Mon Sep 17 00:00:00 2001
From: Barsham Sotoudeh <barsham@gmail.com>
Date: Sat, 18 Feb 2017 02:16:55 +1100
Subject: [PATCH 21/33] Add missing "offset" parameter in catch block of the
 GetFile method (#402)

This offset optional parameter was added in https://github.com/sochix/TLSharp/commit/a753a1ab136a287559b028ccc7522212882140e0
---
 TLSharp.Core/TelegramClient.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index d4efdb1..a4fa06a 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -320,7 +320,7 @@ namespace TLSharp.Core
                     bytes = exportedAuth.bytes,
                     id = exportedAuth.id
                 });
-                result = await GetFile(location, filePartSize);
+                result = await GetFile(location, filePartSize, offset);
 
                 _session.AuthKey = authKey;
                 _session.TimeOffset = timeOffset;

From bea1363641dc6d6fef0be9754d7822daf1cfb64d Mon Sep 17 00:00:00 2001
From: Ilya Pirozhenko <ilya.pir@gmail.com>
Date: Tue, 28 Feb 2017 16:45:20 +0300
Subject: [PATCH 22/33] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5f4cd51..54691f8 100644
--- a/README.md
+++ b/README.md
@@ -12,9 +12,9 @@ It's a perfect fit for any developer who would like to send data directly to Tel
 
 :star2: If you :heart: library, please star it! :star2:
 
-If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
+If you have difficulties with library usage, I can support you ( 75$/hour ). Contact me at @sochix.
 
-<a href="https://github.com/sochix/telegram-tools"><img src="https://github.com/sochix/telegram-tools/raw/master/demo.gif" /></a>
+If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
 
 # Table of contents?
 

From ade02105f6b4bbfaa7e4651c3457b7aed0a29a82 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Thu, 2 Mar 2017 09:52:12 +0330
Subject: [PATCH 23/33] Implementing IsConnected

---
 TLSharp.Core/Network/TcpTransport.cs | 13 +++++++++++--
 TLSharp.Core/TelegramClient.cs       | 11 +++++++++--
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/TLSharp.Core/Network/TcpTransport.cs b/TLSharp.Core/Network/TcpTransport.cs
index 254153e..31bd6b4 100644
--- a/TLSharp.Core/Network/TcpTransport.cs
+++ b/TLSharp.Core/Network/TcpTransport.cs
@@ -84,8 +84,17 @@ namespace TLSharp.Core.Network
             }
 
             return new TcpMessage(seq, body);
-        }
-
+        }
+
+        public bool IsConnected
+        {
+            get
+            {
+                return this._tcpClient.Connected;
+            }
+        }
+
+
         public void Dispose()
         {
             if (_tcpClient.Connected)
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index a4fa06a..228c9b5 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -377,8 +377,15 @@ namespace TLSharp.Core
             _session.SessionExpires = int.MaxValue;
 
             _session.Save();
-        }
-
+        }
+
+        public bool IsConnected()
+        {
+            if (this._transport == null)
+                return false;
+            return this._transport.IsConnected;
+        }
+
         public void Dispose()
         {
             if (_transport != null)

From e99aaa02f52cd2bef48bb1262fbce60516cfac57 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Wed, 21 Dec 2016 12:18:40 +0330
Subject: [PATCH 24/33] Revert "Tests: Use OfType() instead of GetType() ==
 typeof()"

This reverts commit 31df61a479b6876eeb5bb626c42e0ae6bc63195a.
---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 487b535..0d8852e 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,7 +172,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -193,7 +194,8 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .OfType<TLChannel>()
+                .Where(c => c.GetType() == typeof(TLChannel))
+                .Cast<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -208,7 +210,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -224,7 +227,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -246,18 +250,21 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .OfType<TLMessage>()
-                .Where(m => m.media != null)
+                .Where(m => m.GetType() == typeof(TLMessage))
+                .Cast<TLMessage>()
+                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
                 .Select(m => m.media)
-                .OfType<TLMessageMediaDocument>()
+                .Cast<TLMessageMediaDocument>()
+                .Where(md => md.document.GetType() == typeof(TLDocument))
                 .Select(md => md.document)
-                .OfType<TLDocument>()
+                .Cast<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -281,7 +288,8 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .OfType<TLUser>()
+                .Where(x => x.GetType() == typeof(TLUser))
+                .Cast<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 91b423c921239a32ca2faff7acdbf6d3f708f675 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Wed, 21 Dec 2016 12:18:51 +0330
Subject: [PATCH 25/33] Revert "Revert "Tests: Use OfType() instead of
 GetType() == typeof()""

This reverts commit 14c0c21bcf4a42df517ba641e63d71cdab6ad816.
---
 TLSharp.Tests/TLSharpTests.cs | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/TLSharp.Tests/TLSharpTests.cs b/TLSharp.Tests/TLSharpTests.cs
index 0d8852e..487b535 100644
--- a/TLSharp.Tests/TLSharpTests.cs
+++ b/TLSharp.Tests/TLSharpTests.cs
@@ -172,8 +172,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == normalizedNumber);
 
             if (user == null)
@@ -194,8 +193,7 @@ namespace TLSharp.Tests
 
             var dialogs = (TLDialogs) await client.GetUserDialogsAsync();
             var chat = dialogs.chats.lists
-                .Where(c => c.GetType() == typeof(TLChannel))
-                .Cast<TLChannel>()
+                .OfType<TLChannel>()
                 .FirstOrDefault(c => c.title == "TestGroup");
 
             await client.SendMessageAsync(new TLInputPeerChannel() { channel_id = chat.id, access_hash = chat.access_hash.Value }, "TEST MSG");
@@ -210,8 +208,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFile)await client.UploadFile("cat.jpg", new StreamReader("data/cat.jpg"));
@@ -227,8 +224,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var fileResult = (TLInputFileBig)await client.UploadFile("some.zip", new StreamReader("<some big file path>"));
@@ -250,21 +246,18 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.phone == NumberToSendMessage);
 
             var inputPeer = new TLInputPeerUser() { user_id = user.id };
             var res = await client.SendRequestAsync<TLMessagesSlice>(new TLRequestGetHistory() { peer = inputPeer });
             var document = res.messages.lists
-                .Where(m => m.GetType() == typeof(TLMessage))
-                .Cast<TLMessage>()
-                .Where(m => m.media != null && m.media.GetType() == typeof(TLMessageMediaDocument))
+                .OfType<TLMessage>()
+                .Where(m => m.media != null)
                 .Select(m => m.media)
-                .Cast<TLMessageMediaDocument>()
-                .Where(md => md.document.GetType() == typeof(TLDocument))
+                .OfType<TLMessageMediaDocument>()
                 .Select(md => md.document)
-                .Cast<TLDocument>()
+                .OfType<TLDocument>()
                 .First();
 
             var resFile = await client.GetFile(
@@ -288,8 +281,7 @@ namespace TLSharp.Tests
             var result = await client.GetContactsAsync();
 
             var user = result.users.lists
-                .Where(x => x.GetType() == typeof(TLUser))
-                .Cast<TLUser>()
+                .OfType<TLUser>()
                 .FirstOrDefault(x => x.id == 5880094);
     
             var photo = ((TLUserProfilePhoto)user.photo);

From 653b01ecc01c5e7c2be649fa12e4a9483a656464 Mon Sep 17 00:00:00 2001
From: Mikhail <gmardok@gmail.com>
Date: Wed, 28 Dec 2016 15:37:34 +0100
Subject: [PATCH 26/33] Search user by username with send message test. (#356)

* Search user by username with send message test.
---
 TLSharp.Core/TelegramClient.cs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 228c9b5..47fbf8d 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -371,6 +371,23 @@ namespace TLSharp.Core
             return await SendRequestAsync<TLFound>(r);
         }
 
+        /// <summary>
+        /// Serch user or chat. API: contacts.search#11f812d8 q:string limit:int = contacts.Found;
+        /// </summary>
+        /// <param name="q">User or chat name</param>
+        /// <param name="limit">Max result count</param>
+        /// <returns></returns>
+        public async Task<TLFound> SearchUserAsync(string q, int limit = 10)
+        {
+            var r = new TeleSharp.TL.Contacts.TLRequestSearch
+            {
+                q = q,
+                limit = limit
+            };
+
+            return await SendRequestAsync<TLFound>(r);
+        }
+
         private void OnUserAuthenticated(TLUser TLUser)
         {
             _session.TLUser = TLUser;

From 756fed882735b806a0d8c6c1681a467361cdc214 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Mon, 9 Jan 2017 18:25:55 +0100
Subject: [PATCH 27/33] Add GetHistoryAsync() to TelegramClient

---
 TLSharp.Core/TelegramClient.cs | 44 +++++++---------------------------
 1 file changed, 8 insertions(+), 36 deletions(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 47fbf8d..1847f4b 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -28,10 +28,8 @@ namespace TLSharp.Core
         private int _apiId = 0;
         private Session _session;
         private List<TLDcOption> dcOptions;
-        private TcpClientConnectionHandler _handler;
 
-        public TelegramClient(int apiId, string apiHash,
-            ISessionStore store = null, string sessionUserId = "session", TcpClientConnectionHandler handler = null)
+        public TelegramClient(int apiId, string apiHash, ISessionStore store = null, string sessionUserId = "session")
         {
             if (apiId == default(int))
                 throw new MissingApiConfigurationException("API_ID");
@@ -44,10 +42,9 @@ namespace TLSharp.Core
             TLContext.Init();
             _apiHash = apiHash;
             _apiId = apiId;
-            _handler = handler;
 
             _session = Session.TryLoadOrCreateNew(store, sessionUserId);
-            _transport = new TcpTransport(_session.ServerAddress, _session.Port, _handler);
+            _transport = new TcpTransport(_session.ServerAddress, _session.Port);
         }
 
         public async Task<bool> ConnectAsync(bool reconnect = false)
@@ -88,7 +85,7 @@ namespace TLSharp.Core
 
             var dc = dcOptions.First(d => d.id == dcId);
 
-            _transport = new TcpTransport(dc.ip_address, dc.port, _handler);
+            _transport = new TcpTransport(dc.ip_address, dc.port);
             _session.ServerAddress = dc.ip_address;
             _session.Port = dc.port;
 
@@ -293,7 +290,7 @@ namespace TLSharp.Core
             });
         }
 
-        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize, int offset = 0)
+        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize)
         {
             TLFile result = null;
             try
@@ -301,8 +298,7 @@ namespace TLSharp.Core
                 result = await SendRequestAsync<TLFile>(new TLRequestGetFile()
                 {
                     location = location,
-                    limit = filePartSize,
-                    offset = offset
+                    limit = filePartSize
                 });
             }
             catch (FileMigrationException ex)
@@ -320,7 +316,7 @@ namespace TLSharp.Core
                     bytes = exportedAuth.bytes,
                     id = exportedAuth.id
                 });
-                result = await GetFile(location, filePartSize, offset);
+                result = await GetFile(location, filePartSize);
 
                 _session.AuthKey = authKey;
                 _session.TimeOffset = timeOffset;
@@ -371,38 +367,14 @@ namespace TLSharp.Core
             return await SendRequestAsync<TLFound>(r);
         }
 
-        /// <summary>
-        /// Serch user or chat. API: contacts.search#11f812d8 q:string limit:int = contacts.Found;
-        /// </summary>
-        /// <param name="q">User or chat name</param>
-        /// <param name="limit">Max result count</param>
-        /// <returns></returns>
-        public async Task<TLFound> SearchUserAsync(string q, int limit = 10)
-        {
-            var r = new TeleSharp.TL.Contacts.TLRequestSearch
-            {
-                q = q,
-                limit = limit
-            };
-
-            return await SendRequestAsync<TLFound>(r);
-        }
-
         private void OnUserAuthenticated(TLUser TLUser)
         {
             _session.TLUser = TLUser;
             _session.SessionExpires = int.MaxValue;
 
             _session.Save();
-        }
-
-        public bool IsConnected()
-        {
-            if (this._transport == null)
-                return false;
-            return this._transport.IsConnected;
-        }
-
+        }
+
         public void Dispose()
         {
             if (_transport != null)

From ed24638315fee1ca19688112626a736a63648156 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Thu, 19 Jan 2017 19:31:27 +0100
Subject: [PATCH 28/33] Add offset parameter to GetFile() method

---
 TLSharp.Core/TelegramClient.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 1847f4b..9674ee8 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -290,7 +290,7 @@ namespace TLSharp.Core
             });
         }
 
-        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize)
+        public async Task<TLFile> GetFile(TLAbsInputFileLocation location, int filePartSize, int offset = 0)
         {
             TLFile result = null;
             try
@@ -298,7 +298,8 @@ namespace TLSharp.Core
                 result = await SendRequestAsync<TLFile>(new TLRequestGetFile()
                 {
                     location = location,
-                    limit = filePartSize
+                    limit = filePartSize,
+                    offset = offset
                 });
             }
             catch (FileMigrationException ex)

From 0c6838740c852f6e5d1a437b1dba798337dc1ee3 Mon Sep 17 00:00:00 2001
From: Starli0n <Starli0n@users.noreply.github.com>
Date: Fri, 27 Jan 2017 10:58:47 +0100
Subject: [PATCH 29/33] Custom TCP hanlder to allow HTTP proxy auth

---
 TLSharp.Core/TelegramClient.cs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 9674ee8..d4efdb1 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -28,8 +28,10 @@ namespace TLSharp.Core
         private int _apiId = 0;
         private Session _session;
         private List<TLDcOption> dcOptions;
+        private TcpClientConnectionHandler _handler;
 
-        public TelegramClient(int apiId, string apiHash, ISessionStore store = null, string sessionUserId = "session")
+        public TelegramClient(int apiId, string apiHash,
+            ISessionStore store = null, string sessionUserId = "session", TcpClientConnectionHandler handler = null)
         {
             if (apiId == default(int))
                 throw new MissingApiConfigurationException("API_ID");
@@ -42,9 +44,10 @@ namespace TLSharp.Core
             TLContext.Init();
             _apiHash = apiHash;
             _apiId = apiId;
+            _handler = handler;
 
             _session = Session.TryLoadOrCreateNew(store, sessionUserId);
-            _transport = new TcpTransport(_session.ServerAddress, _session.Port);
+            _transport = new TcpTransport(_session.ServerAddress, _session.Port, _handler);
         }
 
         public async Task<bool> ConnectAsync(bool reconnect = false)
@@ -85,7 +88,7 @@ namespace TLSharp.Core
 
             var dc = dcOptions.First(d => d.id == dcId);
 
-            _transport = new TcpTransport(dc.ip_address, dc.port);
+            _transport = new TcpTransport(dc.ip_address, dc.port, _handler);
             _session.ServerAddress = dc.ip_address;
             _session.Port = dc.port;
 

From 04ad7a67e9c6b52c4115ab7ba08b411a87377cdd Mon Sep 17 00:00:00 2001
From: Ilya Pirozhenko <ilya.pir@gmail.com>
Date: Sun, 29 Jan 2017 17:06:22 +0300
Subject: [PATCH 30/33] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 54691f8..5f4cd51 100644
--- a/README.md
+++ b/README.md
@@ -12,10 +12,10 @@ It's a perfect fit for any developer who would like to send data directly to Tel
 
 :star2: If you :heart: library, please star it! :star2:
 
-If you have difficulties with library usage, I can support you ( 75$/hour ). Contact me at @sochix.
-
 If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
 
+<a href="https://github.com/sochix/telegram-tools"><img src="https://github.com/sochix/telegram-tools/raw/master/demo.gif" /></a>
+
 # Table of contents?
 
 - [How do I add this to my project?](#how-do-i-add-this-to-my-project)

From dba1f0fd2adb2745d1b933877f471bbdd3fbaaf9 Mon Sep 17 00:00:00 2001
From: Barsham Sotoudeh <barsham@gmail.com>
Date: Sat, 18 Feb 2017 02:16:55 +1100
Subject: [PATCH 31/33] Add missing "offset" parameter in catch block of the
 GetFile method (#402)

This offset optional parameter was added in https://github.com/sochix/TLSharp/commit/a753a1ab136a287559b028ccc7522212882140e0
---
 TLSharp.Core/TelegramClient.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index d4efdb1..a4fa06a 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -320,7 +320,7 @@ namespace TLSharp.Core
                     bytes = exportedAuth.bytes,
                     id = exportedAuth.id
                 });
-                result = await GetFile(location, filePartSize);
+                result = await GetFile(location, filePartSize, offset);
 
                 _session.AuthKey = authKey;
                 _session.TimeOffset = timeOffset;

From 8f02d52e65320d240079a9d42f89f79b9b883bef Mon Sep 17 00:00:00 2001
From: Ilya Pirozhenko <ilya.pir@gmail.com>
Date: Tue, 28 Feb 2017 16:45:20 +0300
Subject: [PATCH 32/33] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5f4cd51..54691f8 100644
--- a/README.md
+++ b/README.md
@@ -12,9 +12,9 @@ It's a perfect fit for any developer who would like to send data directly to Tel
 
 :star2: If you :heart: library, please star it! :star2:
 
-If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
+If you have difficulties with library usage, I can support you ( 75$/hour ). Contact me at @sochix.
 
-<a href="https://github.com/sochix/telegram-tools"><img src="https://github.com/sochix/telegram-tools/raw/master/demo.gif" /></a>
+If you have difficulties with console or writing code, you can try [Telegram Tools](https://github.com/sochix/telegram-tools). It's a GUI for TLSharp.
 
 # Table of contents?
 

From f11475badd4ecf53a67660045fccaa1698c08222 Mon Sep 17 00:00:00 2001
From: salar2k <salar2k@gmail.com>
Date: Thu, 2 Mar 2017 09:52:12 +0330
Subject: [PATCH 33/33] Implementing IsConnected

---
 TLSharp.Core/TelegramClient.cs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index a4fa06a..228c9b5 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -377,8 +377,15 @@ namespace TLSharp.Core
             _session.SessionExpires = int.MaxValue;
 
             _session.Save();
-        }
-
+        }
+
+        public bool IsConnected()
+        {
+            if (this._transport == null)
+                return false;
+            return this._transport.IsConnected;
+        }
+
         public void Dispose()
         {
             if (_transport != null)