Adds brotli compression support to the proxy.

Author: kfreezen

src/Titanium.Web.Proxy/Compression/DecompressionFactory.cs

@@ -18,6 +18,8 @@ internal static Stream Create(string type, Stream stream, bool leaveOpen = true)
                     return new GZipStream(stream, CompressionMode.Decompress, leaveOpen);
                 case KnownHeaders.ContentEncodingDeflate:
                     return new DeflateStream(stream, CompressionMode.Decompress, leaveOpen);
+                case KnownHeaders.ContentEncodingBrotli:
+                    return new BrotliSharpLib.BrotliStream(stream, CompressionMode.Decompress, leaveOpen);
                 default:
                     throw new Exception($"Unsupported decompression mode: {type}");
             }

src/Titanium.Web.Proxy/Http/KnownHeaders.cs

@@ -39,6 +39,7 @@ public static class KnownHeaders
         public const string ContentEncoding = "content-encoding";
         public const string ContentEncodingDeflate = "deflate";
         public const string ContentEncodingGzip = "gzip";
+        public const string ContentEncodingBrotli = "br";
 
         public const string Location = "Location";
 

src/Titanium.Web.Proxy/Titanium.Web.Proxy.csproj

@@ -13,6 +13,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="BrotliSharpLib" Version="0.3.1" />
     <PackageReference Include="Portable.BouncyCastle" Version="1.8.2" />
     <PackageReference Include="StreamExtended" Version="1.0.179" />
   </ItemGroup>

src/Titanium.Web.Proxy/Titanium.Web.Proxy.nuspec

@@ -16,6 +16,7 @@
     <dependencies>
       <dependency id="StreamExtended" version="1.0.179" />
       <dependency id="Portable.BouncyCastle" version="1.8.2" />
+      <dependency id="BrotliSharpLib" version="0.3.1" />
     </dependencies>
   </metadata>
   <files>