fixing some Github OAuth quirks

Author: mabako

Git.hub.Demo/Program.cs

@@ -13,7 +13,9 @@ static void Main(string[] args)
             Client client = new Client();
 
             client.setCredentials("mabako", "");
+            //client.setOAuth2Token("");
             Console.WriteLine("Logged in as: {0}", client.getCurrentUser());
+            client.getRepositories().ToList().ForEach(repo => Console.WriteLine("  {0}", repo.Name));
 
             Console.WriteLine();
             Console.WriteLine("Repositories of mabako?");

Git.hub/Client.cs

@@ -37,7 +37,7 @@ public void setCredentials(string user, string password)
         public void setOAuth2Token(string token)
         {
             if (token != null)
-                client.Authenticator = new OAuth2AuthorizationRequestHeaderAuthenticator(token);
+                client.Authenticator = new OAuth2AuthHelper(token);
             else
                 client.Authenticator = null;
         }
@@ -53,9 +53,12 @@ public IList<Repository> getRepositories()
 
             var request = new RestRequest("/user/repos?type=all");
 
-            var list = client.Get<List<Repository>>(request).Data;
-            list.ForEach(r => r._client = client);
-            return list;
+            var repos = client.Get<List<Repository>>(request);
+            if (repos.Data == null)
+                throw new Exception("Bad Credentials");
+
+            repos.Data.ForEach(r => r._client = client);
+            return repos.Data;
         }
 
         /// <summary>
@@ -123,7 +126,12 @@ public User getCurrentUser()
                 throw new ArgumentException("no authentication details");
 
             var request = new RestRequest("/user");
-            return client.Get<User>(request).Data;
+
+            var user = client.Get<User>(request);
+            if (user.Data == null)
+                throw new Exception("Bad Credentials");
+
+            return user.Data;
         }
     }
 }

Git.hub/OAuth2Helper.cs

@@ -42,4 +42,20 @@ public static string requestToken(string client_id, string client_secret, string
             return null;
         }
     }
+
+    /// <summary>
+    /// Github sure has some quirks.
+    /// 
+    /// (not even sure why) Using RestSharp's authenticators works on GET /user, but not GET /user/repos?
+    /// This basically works around that.
+    /// </summary>
+    class OAuth2AuthHelper : OAuth2Authenticator
+    {
+        public OAuth2AuthHelper(string token) : base(token) { }
+
+        public override void Authenticate(IRestClient client, IRestRequest request)
+        {
+            request.AddHeader("Authorization", "bearer " + AccessToken);
+        }
+    }
 }