1 files changed, 48 insertions, 0 deletions
diff --git a/Swiften/StreamStack/CompressionLayer.h b/Swiften/StreamStack/CompressionLayer.h
new file mode 100644
index 0000000..6a8f2b3
--- /dev/null
+++ b/Swiften/StreamStack/CompressionLayer.h
@@ -0,0 +1,48 @@
+#ifndef SWIFTEN_COMPRESSIONLAYER_H
+#define SWIFTEN_COMPRESSIONLAYER_H
+
+#include <boost/noncopyable.hpp>
+#include <boost/signal.hpp>
+
+#include "Swiften/Base/ByteArray.h"
+#include "Swiften/StreamStack/StreamLayer.h"
+#include "Swiften/Compress/ZLibException.h"
+#include "Swiften/Compress/ZLibCompressor.h"
+#include "Swiften/Compress/ZLibDecompressor.h"
+
+namespace Swift {
+	class ZLibCompressor;
+	class ZLibDecompressor;
+
+	class CompressionLayer : public StreamLayer, boost::noncopyable {
+		public:
+			CompressionLayer() {}
+
+			virtual void writeData(const ByteArray& data) {
+				try {
+					onWriteData(compressor_.process(data));
+				}
+				catch (const ZLibException& e) {
+					onError();
+				}
+			}
+
+			virtual void handleDataRead(const ByteArray& data) {
+				try {
+					onDataRead(decompressor_.process(data));
+				}
+				catch (const ZLibException& e) {
+					onError();
+				}
+			}
+
+		public:
+			boost::signal<void ()> onError;
+
+		private:
+			ZLibCompressor compressor_;
+			ZLibDecompressor decompressor_;
+	};
+}
+
+#endif