1 files changed, 68 insertions, 0 deletions
diff --git a/chromium/net/third_party/quiche/src/quic/core/qpack/qpack_encoder_stream_receiver.h b/chromium/net/third_party/quiche/src/quic/core/qpack/qpack_encoder_stream_receiver.h
new file mode 100644
index 00000000000..5519b4c67a2
--- /dev/null
+++ b/chromium/net/third_party/quiche/src/quic/core/qpack/qpack_encoder_stream_receiver.h
@@ -0,0 +1,68 @@
+// Copyright (c) 2018 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 QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_RECEIVER_H_
+#define QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_RECEIVER_H_
+
+#include <cstdint>
+#include <string>
+
+#include "net/third_party/quiche/src/quic/core/qpack/qpack_instruction_decoder.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
+
+namespace quic {
+
+// This class decodes data received on the encoder stream.
+class QUIC_EXPORT_PRIVATE QpackEncoderStreamReceiver
+    : public QpackInstructionDecoder::Delegate {
+ public:
+  // An interface for handling instructions decoded from the encoder stream, see
+  // https://quicwg.org/base-drafts/draft-ietf-quic-qpack.html#rfc.section.5.2
+  class Delegate {
+   public:
+    virtual ~Delegate() = default;
+
+    // 5.2.1. Insert With Name Reference
+    virtual void OnInsertWithNameReference(bool is_static,
+                                           uint64_t name_index,
+                                           QuicStringPiece value) = 0;
+    // 5.2.2. Insert Without Name Reference
+    virtual void OnInsertWithoutNameReference(QuicStringPiece name,
+                                              QuicStringPiece value) = 0;
+    // 5.2.3. Duplicate
+    virtual void OnDuplicate(uint64_t index) = 0;
+    // 5.2.4. Set Dynamic Table Capacity
+    virtual void OnSetDynamicTableCapacity(uint64_t capacity) = 0;
+    // Decoding error
+    virtual void OnErrorDetected(QuicStringPiece error_message) = 0;
+  };
+
+  explicit QpackEncoderStreamReceiver(Delegate* delegate);
+  QpackEncoderStreamReceiver() = delete;
+  QpackEncoderStreamReceiver(const QpackEncoderStreamReceiver&) = delete;
+  QpackEncoderStreamReceiver& operator=(const QpackEncoderStreamReceiver&) =
+      delete;
+  ~QpackEncoderStreamReceiver() override = default;
+
+  // Decode data and call appropriate Delegate method after each decoded
+  // instruction.  Once an error occurs, Delegate::OnErrorDetected() is called,
+  // and all further data is ignored.
+  void Decode(QuicStringPiece data);
+
+  // QpackInstructionDecoder::Delegate implementation.
+  bool OnInstructionDecoded(const QpackInstruction* instruction) override;
+  void OnError(QuicStringPiece error_message) override;
+
+ private:
+  QpackInstructionDecoder instruction_decoder_;
+  Delegate* const delegate_;
+
+  // True if a decoding error has been detected.
+  bool error_detected_;
+};
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_RECEIVER_H_