all client autobahn test should pass ! last failing one was ...

+- zlib/deflate has a bug with windowsbits == 8, so we silently upgrade it to 9/ (fix autobahn test 13.X which uses 8 for the windows size)

DOCKER_VERSION

@@ -1 +1 @@
-5.2.0
+6.0.0

docs/CHANGELOG.md

@@ -1,6 +1,11 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [6.0.0] - 2019-09-04
+
+- all client autobahn test should pass !
+- zlib/deflate has a bug with windowsbits == 8, so we silently upgrade it to 9/ (fix autobahn test 13.X which uses 8 for the windows size)
+
 ## [5.2.0] - 2019-09-04
 
 - Fragmentation: for sent messages which are compressed, the continuation fragments should not have the rsv1 bit set (fix all autobahn tests for zlib compression 12.X)

ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp

@@ -33,6 +33,8 @@ namespace ix
         _serverNoContextTakeover = serverNoContextTakeover;
         _clientMaxWindowBits = clientMaxWindowBits;
         _serverMaxWindowBits = serverMaxWindowBits;
+
+        sanitizeClientMaxWindowBits();
     }
 
     //
@@ -107,10 +109,22 @@ namespace ix
                 _clientMaxWindowBits =
                     std::min(maxClientMaxWindowBits,
                         std::max(x, minClientMaxWindowBits));
+
+                sanitizeClientMaxWindowBits();
             }
         }
     }
 
+    void WebSocketPerMessageDeflateOptions::sanitizeClientMaxWindowBits()
+    {
+        // zlib/deflate has a bug with windowsbits == 8, so we silently upgrade it to 9
+        // See https://bugs.chromium.org/p/chromium/issues/detail?id=691074
+        if (_clientMaxWindowBits == 8)
+        {
+            _clientMaxWindowBits = 9;
+        }
+    }
+
     std::string WebSocketPerMessageDeflateOptions::generateHeader()
     {
         std::stringstream ss;

ixwebsocket/IXWebSocketPerMessageDeflateOptions.h

@@ -41,5 +41,7 @@ namespace ix
         bool _serverNoContextTakeover;
         int _clientMaxWindowBits;
         int _serverMaxWindowBits;
+
+        void sanitizeClientMaxWindowBits();
     };
 } // namespace ix

ixwebsocket/IXWebSocketVersion.h

@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "5.2.0"
+#define IX_WEBSOCKET_VERSION "6.0.0"