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ixwebsocket/include/IXWebSocketPerMessageDeflate.h

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+/*
+ * Copyright (c) 2015, Peter Thorson. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the WebSocket++ Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ *
+ *  Adapted from websocketpp/extensions/permessage_deflate/enabled.hpp
+ *  (same license as MZ: https://opensource.org/licenses/BSD-3-Clause)
+ */
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+namespace ix
+{
+class WebSocketPerMessageDeflateOptions;
+class WebSocketPerMessageDeflateCompressor;
+class WebSocketPerMessageDeflateDecompressor;
+
+class WebSocketPerMessageDeflate
+{
+public:
+    WebSocketPerMessageDeflate();
+    ~WebSocketPerMessageDeflate();
+
+    bool
+        init(const WebSocketPerMessageDeflateOptions &perMessageDeflateOptions);
+    bool compress(const std::string &in, std::string &out);
+    bool decompress(const std::string &in, std::string &out);
+
+private:
+    std::unique_ptr<WebSocketPerMessageDeflateCompressor> _compressor;
+    std::unique_ptr<WebSocketPerMessageDeflateDecompressor> _decompressor;
+};
+
+using WebSocketPerMessageDeflatePtr =
+    std::unique_ptr<WebSocketPerMessageDeflate>;
+} // namespace ix