Add test showing how to autolink in a post-processing step

HtmlSanitizer.Tests/HtmlSanitizer.Tests.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -35,6 +35,14 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="AhoCorasick, Version=1.1.5577.36525, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\AhoCorasick.1.1.5577.36525\lib\portable-net40+sl50+win+wpa81+wp80\AhoCorasick.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="AutoLink, Version=1.0.5591.26670, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\AutoLink.1.0.5591.26670\lib\portable-net40+sl50+win+wpa81+wp80\AutoLink.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="CsQuery, Version=1.3.3.249, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\CsQuery.1.3.4\lib\net40\CsQuery.dll</HintPath>

HtmlSanitizer.Tests/Tests.cs

@@ -1,3 +1,5 @@
+using CsQuery;
+using Ganss.Text;
 using NUnit.Framework;
 using System;
 using System.Collections.Generic;
@@ -2122,6 +2124,40 @@ rl(javascript:alert(""foo""))'>";
             var html = @"<div>Hallo</div>";
             Assert.That(sanitizer.Sanitize(html), Is.EqualTo(@"<div class=""test"">Hallo<b>Test</b></div>").IgnoreCase);
         }
+
+        [Test]
+        public void AutoLinkTest()
+        {
+            var sanitizer = new HtmlSanitizer();
+            var autolink = new AutoLink();
+            sanitizer.PostProcessTag += (s, e) =>
+            {
+                var tag = e.Tag;
+                for (int i = 0; i < tag.ChildNodes.Length; i++)
+                {
+                    var text = tag.ChildNodes[i] as IDomText;
+                    if (text != null)
+                    {
+                        var autolinked = autolink.Link(text.NodeValue);
+                        if (autolinked != text.NodeValue)
+                        {
+                            var a = CQ.Create(autolinked);
+
+                            while (a.Document.ChildNodes.Any())
+                            {
+                                tag.ChildNodes.Insert(i, a.Document.ChildNodes.First());
+                                i++;
+                            }
+
+                            tag.ChildNodes.RemoveAt(i);
+                            i--;
+                        }
+                    }
+                }
+            };
+            var html = @"<div>Click here: http://example.com/.</div>";
+            Assert.That(sanitizer.Sanitize(html), Is.EqualTo(@"<div>Click here: <a href=""http://example.com/"">http://example.com/</a>.</div>").IgnoreCase);
+        }
     }
 }
 

HtmlSanitizer.Tests/packages.config

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="AhoCorasick" version="1.1.5577.36525" targetFramework="net45" />
+  <package id="AutoLink" version="1.0.5591.26670" targetFramework="net45" />
   <package id="CsQuery" version="1.3.4" targetFramework="net45" />
   <package id="NUnit" version="2.6.3" targetFramework="net45" />
 </packages>