From 6d1d58b6549daea0183b70a1c702e3017abb9663 Mon Sep 17 00:00:00 2001
From: Oren Hurvitz
Date: Tue, 25 Mar 2014 19:09:03 +0200
Subject: Use the "X-Content-Encoding" header to indicate gzipped data, because
 old OpenSims fail if they get an unknown "Content-Encoding"

---
 OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs |  5 ++++-
 OpenSim/Framework/Servers/HttpServer/OSHttpRequest.cs  | 15 +++++++++++++--
 OpenSim/Framework/WebUtil.cs                           |  2 +-
 3 files changed, 18 insertions(+), 4 deletions(-)

(limited to 'OpenSim/Framework')

diff --git a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
index 2f7b549..28324a5 100644
--- a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
@@ -833,7 +833,7 @@ namespace OpenSim.Framework.Servers.HttpServer
 
             Stream inputStream = Util.Copy(request.InputStream);
 
-            if (request.Headers["Content-Encoding"] == "gzip")
+            if ((request.Headers["Content-Encoding"] == "gzip") || (request.Headers["X-Content-Encoding"] == "gzip"))
                 inputStream = new GZipStream(inputStream, System.IO.Compression.CompressionMode.Decompress);
 
             using (StreamReader reader = new StreamReader(inputStream, Encoding.UTF8))
@@ -978,6 +978,9 @@ namespace OpenSim.Framework.Servers.HttpServer
         {
             Stream requestStream = request.InputStream;
 
+            if ((request.Headers["Content-Encoding"] == "gzip") || (request.Headers["X-Content-Encoding"] == "gzip"))
+                requestStream = new GZipStream(requestStream, System.IO.Compression.CompressionMode.Decompress);
+
             Encoding encoding = Encoding.UTF8;
             StreamReader reader = new StreamReader(requestStream, encoding);
 
diff --git a/OpenSim/Framework/Servers/HttpServer/OSHttpRequest.cs b/OpenSim/Framework/Servers/HttpServer/OSHttpRequest.cs
index f36cbbc..05ec6dc 100644
--- a/OpenSim/Framework/Servers/HttpServer/OSHttpRequest.cs
+++ b/OpenSim/Framework/Servers/HttpServer/OSHttpRequest.cs
@@ -181,12 +181,23 @@ namespace OpenSim.Framework.Servers.HttpServer
             _request = req;
             _context = context;
 
-            if ((null != req.Headers["content-encoding"]) && ("gzip" != req.Headers["content-encoding"]))
-                _contentEncoding = Encoding.GetEncoding(_request.Headers["content-encoding"]);
+            if (null != req.Headers["content-encoding"])
+            {
+                try
+                {
+                    _contentEncoding = Encoding.GetEncoding(_request.Headers["content-encoding"]);
+                }
+                catch (Exception)
+                {
+                    // ignore
+                }
+            }
+            
             if (null != req.Headers["content-type"])
                 _contentType = _request.Headers["content-type"];
             if (null != req.Headers["user-agent"])
                 _userAgent = req.Headers["user-agent"];
+            
             if (null != req.Headers["remote_addr"])
             {
                 try
diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
index 3972c06..eb3633a 100644
--- a/OpenSim/Framework/WebUtil.cs
+++ b/OpenSim/Framework/WebUtil.cs
@@ -254,7 +254,7 @@ namespace OpenSim.Framework
                     
                     if (compressed)
                     {
-                        request.Headers["Content-Encoding"] = "gzip";
+                        request.Headers["X-Content-Encoding"] = "gzip"; // can't set "Content-Encoding" because old OpenSims fail if they get an unrecognized Content-Encoding
 
                         using (MemoryStream ms = new MemoryStream())
                         {
-- 
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