Added '/api/ to default 'UrlLocalizer.QuickUrlExclusionFilter (#240, #271, #289). Added tests for same.

Author: turquoiseowl

Diff for: README.md

@@ -452,7 +452,7 @@ Firstly, you can set a RegEx pattern to match against the localpath part of the
     {
         ...
         // Blacklist certain URLs from being 'localized'.
-        i18n.UrlLocalizer.QuickUrlExclusionFilter = new System.Text.RegularExpressions.Regex(@"(?:sitemap\.xml|\.css|\.less|\.jpg|\.jpeg|\.png|\.gif|\.ico|\.svg|\.woff|\.woff2|\.ttf|\.eot)$", RegexOptions.IgnoreCase);
+        i18n.UrlLocalizer.QuickUrlExclusionFilter = new System.Text.RegularExpressions.Regex(@"(^\/api\/)|((sitemap\.xml|\.css|\.less|\.jpg|\.jpeg|\.png|\.gif|\.ico|\.svg|\.woff|\.woff2|\.ttf|\.eot)$)", RegexOptions.IgnoreCase);
     }
 ```
 

Diff for: src/i18n.Tests/Tests/UrlLocalizerTests.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Web;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using i18n.Domain.Concrete;
+using i18n.Helpers;
+using NSubstitute;
+
+namespace i18n.Tests
+{
+    [TestClass]
+    public class UrlLocalizerTests
+    {
+        void Helper_UrlLocalizer_FilterIncoming(string urlPath, bool expected_result = false)
+        {
+            UriBuilder ub = new UriBuilder("http://example.com");
+            ub.Path = urlPath;
+            UrlLocalizer obj = new UrlLocalizer();
+            bool result = obj.FilterIncoming(ub.Uri);
+            Assert.AreEqual(expected_result, result);
+        }
+
+        /// <summary>
+        /// Effectively test the default UrlLocalizer.QuickUrlExclusionFilter setting.
+        /// </summary>
+        [TestMethod]
+        public void UrlLocalizer_FilterIncoming()
+        {
+            Helper_UrlLocalizer_FilterIncoming("/api/blogs/12345");
+            Helper_UrlLocalizer_FilterIncoming("/Api/blogs/12345");
+            Helper_UrlLocalizer_FilterIncoming("/API/blogs/12345");
+            Helper_UrlLocalizer_FilterIncoming("/apinine/12345", true);
+            Helper_UrlLocalizer_FilterIncoming("/Apinine/12345", true);
+            Helper_UrlLocalizer_FilterIncoming("/APININE/12345", true);
+
+            Helper_UrlLocalizer_FilterIncoming("sitemap.xml");
+            Helper_UrlLocalizer_FilterIncoming("sitemap.xml/123", true);
+
+            Helper_UrlLocalizer_FilterIncoming("123.css");
+            Helper_UrlLocalizer_FilterIncoming("123.csst", true);
+
+            Helper_UrlLocalizer_FilterIncoming("123.less");
+            Helper_UrlLocalizer_FilterIncoming("123.jpg");
+            Helper_UrlLocalizer_FilterIncoming("123.jpeg");
+            Helper_UrlLocalizer_FilterIncoming("123.png");
+            Helper_UrlLocalizer_FilterIncoming("123.gif");
+            Helper_UrlLocalizer_FilterIncoming("123.ico");
+            Helper_UrlLocalizer_FilterIncoming("123.svg");
+            Helper_UrlLocalizer_FilterIncoming("123.woff");
+            Helper_UrlLocalizer_FilterIncoming("123.woff2");
+            Helper_UrlLocalizer_FilterIncoming("123.ttf");
+            Helper_UrlLocalizer_FilterIncoming("123.eot");
+        }
+    }
+}

Diff for: src/i18n.Tests/i18n.Tests.csproj

@@ -53,6 +53,7 @@
     <Compile Include="Tests\LanguageTagTests.cs" />
     <Compile Include="Tests\NuggetLocalizerTests.cs" />
     <Compile Include="Tests\ResponseFilterTests.cs" />
+    <Compile Include="Tests\UrlLocalizerTests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

Diff for: src/i18n/Concrete/UrlLocalizer.cs

@@ -103,7 +103,7 @@ public class UrlLocalizer : IUrlLocalizer
         /// <remarks>
         /// This filtering in performed in addition to any custom IncomingUrlFilters/OutgoingUrlFilters filters.
         /// </remarks>
-        public static Regex QuickUrlExclusionFilter = new System.Text.RegularExpressions.Regex(@"(?:sitemap\.xml|\.css|\.less|\.jpg|\.jpeg|\.png|\.gif|\.ico|\.svg|\.woff|\.woff2|\.ttf|\.eot)$", RegexOptions.IgnoreCase);
+        public static Regex QuickUrlExclusionFilter = new System.Text.RegularExpressions.Regex(@"(^\/api\/)|((sitemap\.xml|\.css|\.less|\.jpg|\.jpeg|\.png|\.gif|\.ico|\.svg|\.woff|\.woff2|\.ttf|\.eot)$)", RegexOptions.IgnoreCase);
 
         /// <summary>
         /// Filters that examines the request URL during Early URL Localization