DO NOT COMMIT: Implement HPACK (draft 03)

net/spdy/http2_compressor.h

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_SPDY_HTTP2_COMPRESSOR_H_
+#define NET_SPDY_HTTP2_COMPRESSOR_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/strings/string_piece.h"
+#include "net/base/net_export.h"
+#include "net/spdy/http2_encoding_context.h"
+#include "net/spdy/spdy_protocol.h"
+
+namespace net {
+
+class Http2Encoder {
+ public:
+  Http2Encoder();
+
+  void EncodeOctet(uint8 octet);
+
+  void EncodeInteger(uint8 op_code, uint8 N, uint32 I);
+
+  void EncodeOctetSequence(base::StringPiece str);
+
+  void EncodeIndexedHeader(uint32 index);
+
+  void EncodeLiteralHeaderNoIndexingWithIndex(uint32 index,
+                                              base::StringPiece value);
+
+  void EncodeLiteralHeaderNoIndexingWithName(base::StringPiece name,
+                                             base::StringPiece value);
+
+  void EncodeLiteralHeaderWithIncrementalIndexingWithIndex(
+      uint32 index,
+      base::StringPiece value);
+
+  void EncodeLiteralHeaderWithIncrementalIndexingWithName(
+      base::StringPiece name,
+      base::StringPiece value);
+
+  void EncodeLiteralHeaderWithSubstitutionIndexingWithIndex(
+      uint32 index,
+      base::StringPiece value);
+
+  void EncodeLiteralHeaderWithSubstitutionIndexingWithName(
+      base::StringPiece name,
+      base::StringPiece value);
+
+  std::string Flush();
+
+ private:
+  std::string buffer_;
+
+  DISALLOW_COPY_AND_ASSIGN(Http2Encoder);
+};
+
+class NET_EXPORT_PRIVATE Http2Compressor {
+ public:
+  Http2Compressor();
+  ~Http2Compressor();
+
+  std::string EncodeNameValueBlock(const SpdyNameValueBlock& name_value_block);
+
+ private:
+  EncodingContext encoding_context_;
+
+  DISALLOW_COPY_AND_ASSIGN(Http2Compressor);
+};
+
+}  // namespace net
+
+#endif  // NET_SPDY_HTTP2_COMPRESSOR_H_