Integrate cert pinning into DropboxCertHelper.

Author: qimingyuan

Dropbox.Api/DropboxCertHelper.cs

@@ -10,6 +10,7 @@ namespace Dropbox.Api
     using System.Collections.Generic;
     using System.Diagnostics.CodeAnalysis;
     using System.Linq;
+    using System.Net;
     using System.Text;
 
     /// <summary>
@@ -224,5 +225,29 @@ public static bool IsKnownRootCertPublicKey(byte[] publicKey)
 
             return ValidRoots.Contains(publicKeyString);
         }
+
+# if PORTABLE
+# elif PORTABLE40
+# else
+        /// <summary>
+        /// Initializes ssl certificate pinning.
+        /// </summary>
+        public static void InitializeCertPinning()
+        {
+            ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) =>
+            {
+                if (sslPolicyErrors != System.Net.Security.SslPolicyErrors.None)
+                {
+                    return false;
+                }
+
+                var root = chain.ChainElements[chain.ChainElements.Count - 1];
+                var publicKey = root.Certificate.GetPublicKeyString();
+
+                return DropboxCertHelper.IsKnownRootCertPublicKey(publicKey);
+            };
+        }
+#endif
+
     }
 }

Examples/SimpleBlogDemo/SimpleBlogDemo.csproj

@@ -231,9 +231,9 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\Dropbox.Api\Dropbox.Api.Portable.csproj">
-      <Project>{786c830f-07a1-408b-bd7f-6ee04809d6db}</Project>
-      <Name>Dropbox.Api.Portable</Name>
+    <ProjectReference Include="..\..\Dropbox.Api\Dropbox.Api.csproj">
+      <Project>{68180b54-4724-4cd1-baa6-ee7bc309797c}</Project>
+      <Name>Dropbox.Api</Name>
     </ProjectReference>
   </ItemGroup>
   <PropertyGroup>
@@ -271,4 +271,4 @@
   </Target>
   <Target Name="AfterBuild">
   </Target> -->
-</Project>
+</Project>

Examples/SimpleBusinessDashboard/SimpleBusinessDashboard.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
@@ -220,9 +220,9 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\Dropbox.Api\Dropbox.Api.Portable.csproj">
-      <Project>{786c830f-07a1-408b-bd7f-6ee04809d6db}</Project>
-      <Name>Dropbox.Api.Portable</Name>
+    <ProjectReference Include="..\..\Dropbox.Api\Dropbox.Api.csproj">
+      <Project>{68180b54-4724-4cd1-baa6-ee7bc309797c}</Project>
+      <Name>Dropbox.Api</Name>
     </ProjectReference>
   </ItemGroup>
   <PropertyGroup>

Examples/SimpleTest/Program.cs

@@ -32,7 +32,7 @@ static int Main(string[] args)
 
         private async Task<int> Run()
         {
-            InitializeCertPinning();
+            DropboxCertHelper.InitializeCertPinning();
 
             var accessToken = await this.GetAccessToken();
             if (string.IsNullOrEmpty(accessToken))
@@ -126,20 +126,6 @@ private async Task RunTeamTests(DropboxTeamClient client)
             }
         }
 
-        /// <summary>
-        /// Initializes ssl certificate pinning.
-        /// </summary>
-        private void InitializeCertPinning()
-        {
-            ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) =>
-            {
-                var root = chain.ChainElements[chain.ChainElements.Count - 1];
-                var publicKey = root.Certificate.GetPublicKeyString();
-
-                return DropboxCertHelper.IsKnownRootCertPublicKey(publicKey);
-            };
-        }
-
         /// <summary>
         /// Gets the dropbox access token.
         /// <para>

Examples/SimpleTest/SimpleTest.csproj

@@ -91,9 +91,9 @@
     <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\Dropbox.Api\Dropbox.Api.Portable.csproj">
-      <Project>{786c830f-07a1-408b-bd7f-6ee04809d6db}</Project>
-      <Name>Dropbox.Api.Portable</Name>
+    <ProjectReference Include="..\..\Dropbox.Api\Dropbox.Api.csproj">
+      <Project>{68180b54-4724-4cd1-baa6-ee7bc309797c}</Project>
+      <Name>Dropbox.Api</Name>
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />