Add new WebAgent for bots to automatically retrieve a new token upon expiration. Not fully tested.

Add Rebracer support for formatting

Author: CrustyJew

Rebracer.xml

@@ -12,6 +12,11 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UnitTesting", "UnitTesting\
 		{A368CB75-75F0-4489-904D-B5CEBB0FE624} = {A368CB75-75F0-4489-904D-B5CEBB0FE624}
 	EndProjectSection
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{46584E90-4894-4EB7-A0B9-FDAF29B4AF8B}"
+	ProjectSection(SolutionItems) = preProject
+		Rebracer.xml = Rebracer.xml
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU

RedditSharp.sln

@@ -9,7 +9,7 @@ namespace RedditSharp
 {
     public class AuthProvider
     {
-        private const string AccessUrl = "https://ssl.reddit.com/api/v1/access_token";
+        public const string AccessUrl = "https://ssl.reddit.com/api/v1/access_token";
         private const string OauthGetMeUrl = "https://oauth.reddit.com/api/v1/me";
         private const string RevokeUrl = "https://www.reddit.com/api/v1/revoke_token";
 

RedditSharp/AuthProvider.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RedditSharp
+{
+    public class BotWebAgent : WebAgent
+    {
+        //private so it doesn't leak app secret to other code
+        private AuthProvider TokenProvider;
+        private string Username;
+        private string Password;
+
+        public DateTime TokenValidTo { get; set; }
+
+        public BotWebAgent(string username, string password, string clientID, string clientSecret, string redirectURI)
+        {
+            Username = username;
+            Password = password;
+            EnableRateLimit = true;
+            RateLimit = RateLimitMode.Burst;
+            RootDomain = "oauth.reddit.com";
+            TokenProvider = new AuthProvider(clientID, clientSecret, redirectURI, this);
+            GetNewToken();
+        }
+
+        public override HttpWebRequest CreateRequest(string url, string method)
+        {
+            //add 5 minutes for clock skew to ensure requests succeed 
+            if (url != AuthProvider.AccessUrl && DateTime.UtcNow.AddMinutes(5) > TokenValidTo)
+            {
+                GetNewToken();
+            }
+            return base.CreateRequest(url, method);
+        }
+
+        protected override HttpWebRequest CreateRequest(Uri uri, string method)
+        {
+            //add 5 minutes for clock skew to ensure requests succeed
+            if (uri.ToString() != AuthProvider.AccessUrl && DateTime.UtcNow.AddMinutes(5) > TokenValidTo)
+            {
+                GetNewToken();
+            }
+            return base.CreateRequest(uri, method);
+        }
+
+        private void GetNewToken()
+        {
+            AccessToken = TokenProvider.GetOAuthToken(Username, Password);
+            TokenValidTo = DateTime.UtcNow.AddHours(1);
+        }
+    }
+
+}

RedditSharp/BotWebAgent.cs

@@ -115,7 +115,12 @@ public Reddit(DefaultWebAgent.RateLimitMode limitMode, bool useSsl = true)
             DefaultWebAgent.RateLimit = limitMode;
             DefaultWebAgent.RootDomain = "www.reddit.com";
         }
-
+        /// <summary>
+        /// DEPRECATED: Avoid use as Reddit will be removing this option eventually
+        /// </summary>
+        /// <param name="username"></param>
+        /// <param name="password"></param>
+        /// <param name="useSsl"></param>
         public Reddit(string username, string password, bool useSsl = true)
             : this(useSsl)
         {
@@ -161,7 +166,7 @@ public Reddit(IWebAgent agent, bool initUser)
         }
 
         /// <summary>
-        /// Logs in the current Reddit instance.
+        /// Logs in the current Reddit instance. DEPRECATED
         /// </summary>
         /// <param name="username">The username of the user to log on to.</param>
         /// <param name="password">The password of the user to log on to.</param>

RedditSharp/Reddit.cs

@@ -51,6 +51,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="BotWebAgent.cs" />
     <Compile Include="Moderator Actions\ModActionType.cs" />
     <Compile Include="Things\Contributor.cs" />
     <Compile Include="Things\ModAction.cs" />

RedditSharp/RedditSharp.csproj

@@ -62,7 +62,7 @@ public enum RateLimitMode
         public static string RootDomain { get; set; }
 
         /// <summary>
-        /// Used to make calls against Reddit's API using OAuth23
+        /// Used to make calls against Reddit's API using OAuth2
         /// </summary>
         public string AccessToken { get; set; }
 
@@ -239,7 +239,7 @@ public virtual HttpWebRequest CreateRequest(string url, string method)
                 request.Headers.Set("Authorization", "bearer " + AccessToken);//Must be included in OAuth calls
             }
             request.Method = method;
-            request.UserAgent = UserAgent + " - with RedditSharp by /u/sircmpwn";
+            request.UserAgent = UserAgent + " - with RedditSharp by /u/meepster23";
             return request;
         }
 
@@ -258,7 +258,7 @@ protected virtual HttpWebRequest CreateRequest(Uri uri, string method)
                 request.Headers.Set("Authorization", "bearer " + AccessToken);//Must be included in OAuth calls
             }
             request.Method = method;
-            request.UserAgent = UserAgent + " - with RedditSharp by /u/sircmpwn";
+            request.UserAgent = UserAgent + " - with RedditSharp by /u/meepster23";
             return request;
         }