Implement the Meta endpoint

See https://developer.github.com/v3/meta/ for more information about
this endpoint.

Octokit.Reactive/Clients/IObservableMiscellaneousClient.cs

@@ -59,5 +59,12 @@ namespace Octokit.Reactive
         [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
         IObservable<MiscellaneousRateLimit> GetRateLimits();
 
+        /// <summary>
+        /// Retrieves information about GitHub.com, the service or a GitHub Enterprise installation.
+        /// </summary>
+        /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
+        /// <returns>An <see cref="Meta"/> containing metadata about the GitHub instance.</returns>
+        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
+        IObservable<Meta> GetMetadata();
     }
 }

Octokit.Reactive/Clients/ObservableMiscellaneousClient.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Reactive.Linq;
 using System.Reactive.Threading.Tasks;
 
@@ -80,10 +81,21 @@ namespace Octokit.Reactive
         /// </summary>
         /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
         /// <returns>An <see cref="MiscellaneousRateLimit"/> of Rate Limits.</returns>
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
+        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
         public IObservable<MiscellaneousRateLimit> GetRateLimits()
         {
             return _client.GetRateLimits().ToObservable();
         }
+
+        /// <summary>
+        /// Retrieves information about GitHub.com, the service or a GitHub Enterprise installation.
+        /// </summary>
+        /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
+        /// <returns>An <see cref="Meta"/> containing metadata about the GitHub instance.</returns>
+        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
+        public IObservable<Meta> GetMetadata()
+        {
+            return _client.GetMetadata().ToObservable();
+        }
     }
 }

Octokit.Tests.Integration/Clients/MiscellaneousClientTests.cs

@@ -103,4 +103,17 @@ public class MiscellaneousClientTests
 
         }
     }
-}
+
+    public class TheGetMetadataMethod
+    {
+        [IntegrationTest]
+        public async Task CanRetrieveMetadata()
+        {
+            var github = Helper.GetAnonymousClient();
+
+            var result = await github.Miscellaneous.GetMetadata();
+
+            Assert.True(result.VerifiablePasswordAuthentication);
+        }
+    }
+}

Octokit.Tests.Integration/Helper.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Diagnostics;
 using System.IO;
-using System.Security.Policy;
 
 namespace Octokit.Tests.Integration
 {

Octokit/Clients/IMiscellaneousClient.cs

@@ -67,5 +67,13 @@ namespace Octokit
         /// <returns>An <see cref="MiscellaneousRateLimit"/> of Rate Limits.</returns>
         [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
         Task<MiscellaneousRateLimit> GetRateLimits();
+
+        /// <summary>
+        /// Retrieves information about GitHub.com, the service or a GitHub Enterprise installation.
+        /// </summary>
+        /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
+        /// <returns>An <see cref="Meta"/> containing metadata about the GitHub instance.</returns>
+        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
+        Task<Meta> GetMetadata();
     }
 }

Octokit/Clients/MiscellaneousClient.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Threading.Tasks;
 #if NET_45
@@ -122,12 +123,25 @@ namespace Octokit
         /// </summary>
         /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
         /// <returns>An <see cref="MiscellaneousRateLimit"/> of Rate Limits.</returns>
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
+        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
         public async Task<MiscellaneousRateLimit> GetRateLimits()
         {
             var endpoint = new Uri("rate_limit", UriKind.Relative);
             var response = await _connection.Get<MiscellaneousRateLimit>(endpoint, null, null).ConfigureAwait(false);
             return response.Body;
         }
+
+        /// <summary>
+        /// Retrieves information about GitHub.com, the service or a GitHub Enterprise installation.
+        /// </summary>
+        /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
+        /// <returns>An <see cref="Meta"/> containing metadata about the GitHub instance.</returns>
+        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate")]
+        public async Task<Meta> GetMetadata()
+        {
+            var endpoint = new Uri("meta", UriKind.Relative);
+            var response = await _connection.Get<Meta>(endpoint, null, null).ConfigureAwait(false);
+            return response.Body;
+        }
     }
 }

Octokit/Models/Response/Meta.cs

@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Globalization;
+
+namespace Octokit
+{
+    /// <summary>
+    /// Response from the /meta endpoint that provides information about GitHub.com or a GitHub Enterprise instance. 
+    /// </summary>
+    [DebuggerDisplay("{DebuggerDisplay,nq}")]
+    public class Meta
+    {
+        public Meta()
+        {
+        }
+
+        public Meta(
+            bool verifiablePasswordAuthentication,
+            string gitHubServicesSha,
+            IReadOnlyCollection<string> hooks,
+            IReadOnlyCollection<string> git,
+            IReadOnlyCollection<string> pages)
+        {
+            VerifiablePasswordAuthentication = verifiablePasswordAuthentication;
+            GitHubServicesSha = gitHubServicesSha;
+            Hooks = hooks;
+            Git = git;
+            Pages = pages;
+        }
+
+        /// <summary>
+        /// Whether authentication with username and password is supported. (GitHub Enterprise instances using CAS or
+        /// OAuth for authentication will return false. Features like Basic Authentication with a username and
+        ///  password, sudo mode, and two-factor authentication are not supported on these servers.)
+        /// </summary>
+        public bool VerifiablePasswordAuthentication { get; private set; }
+
+        /// <summary>
+        /// The currently-deployed SHA of github-services.
+        /// </summary>
+        public string GitHubServicesSha { get; private set; }
+
+        /// <summary>
+        /// An Array of IP addresses in CIDR format specifying the addresses that incoming service hooks will
+        /// originate from on GitHub.com. Subscribe to the API Changes blog or follow @GitHubAPI on Twitter to get
+        /// updated when this list changes.
+        /// </summary>
+        public IReadOnlyCollection<string> Hooks { get; private set; }
+
+        /// <summary>
+        /// An Array of IP addresses in CIDR format specifying the Git servers for GitHub.com.
+        /// </summary>
+        public IReadOnlyCollection<string> Git { get; private set; }
+
+        /// <summary>
+        /// An Array of IP addresses in CIDR format specifying the A records for GitHub Pages.
+        /// </summary>
+        public IReadOnlyCollection<string> Pages { get; private set; }
+
+        internal string DebuggerDisplay
+        {
+            get
+            {
+                return String.Format(
+                    CultureInfo.InvariantCulture,
+                    "GitHubServicesSha: {0}, VerifiablePasswordAuthentication: {1} ",
+                    GitHubServicesSha,
+                    VerifiablePasswordAuthentication);
+            }
+        }
+    }
+}

Octokit/Octokit-Mono.csproj

@@ -402,6 +402,7 @@
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
     <Compile Include="Http\RequestBody.cs" />
     <Compile Include="Http\IApiInfoProvider.cs" />
+    <Compile Include="Models\Response\Meta.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
 </Project>

Octokit/Octokit-MonoAndroid.csproj

@@ -410,6 +410,7 @@
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
     <Compile Include="Http\RequestBody.cs" />
     <Compile Include="Http\IApiInfoProvider.cs" />
+    <Compile Include="Models\Response\Meta.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Novell\Novell.MonoDroid.CSharp.targets" />
 </Project>

Octokit/Octokit-Monotouch.csproj

@@ -406,6 +406,7 @@
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
     <Compile Include="Http\RequestBody.cs" />
     <Compile Include="Http\IApiInfoProvider.cs" />
+    <Compile Include="Models\Response\Meta.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.MonoTouch.CSharp.targets" />
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />

Octokit/Octokit-Portable.csproj

@@ -399,6 +399,7 @@
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
     <Compile Include="Http\RequestBody.cs" />
     <Compile Include="Http\IApiInfoProvider.cs" />
+    <Compile Include="Models\Response\Meta.cs" />
   </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="..\CustomDictionary.xml">

Octokit/Octokit-netcore45.csproj

@@ -403,6 +403,7 @@
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
     <Compile Include="Http\RequestBody.cs" />
     <Compile Include="Http\IApiInfoProvider.cs" />
+    <Compile Include="Models\Response\Meta.cs" />
   </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="..\CustomDictionary.xml">

Octokit/Octokit.csproj

@@ -118,6 +118,7 @@
     <Compile Include="Models\Response\ContentType.cs" />
     <Compile Include="Models\Response\ApplicationAuthorization.cs" />
     <Compile Include="Models\Response\GitHubCommitFile.cs" />
+    <Compile Include="Models\Response\Meta.cs" />
     <Compile Include="Models\Response\MiscellaneousRateLimit.cs" />
     <Compile Include="Models\Response\PublicKey.cs" />
     <Compile Include="Models\Response\PullRequestFile.cs" />