// Copyright 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_HTTP_PROXY_CONNECT_REDIRECT_HTTP_STREAM_H_
#define NET_HTTP_PROXY_CONNECT_REDIRECT_HTTP_STREAM_H_

#include <stdint.h>

#include <memory>

#include "base/compiler_specific.h"
#include "net/base/completion_once_callback.h"
#include "net/base/load_timing_info.h"
#include "net/http/http_stream.h"

namespace net {

// A dummy HttpStream with no body used when a redirect is returned
// from a proxy.
class ProxyConnectRedirectHttpStream : public HttpStream {
 public:
  // |load_timing_info| is the info that should be returned by
  // GetLoadTimingInfo(), or NULL if there is none. Does not take
  // ownership of |load_timing_info|.
  explicit ProxyConnectRedirectHttpStream(LoadTimingInfo* load_timing_info);
  ~ProxyConnectRedirectHttpStream() override;

  // All functions below are expected not to be called except for the
  // marked one.

  int InitializeStream(const HttpRequestInfo* request_info,
                       bool can_send_early,
                       RequestPriority priority,
                       const NetLogWithSource& net_log,
                       CompletionOnceCallback callback) override;
  int SendRequest(const HttpRequestHeaders& request_headers,
                  HttpResponseInfo* response,
                  CompletionOnceCallback callback) override;
  int ReadResponseHeaders(CompletionOnceCallback callback) override;
  int ReadResponseBody(IOBuffer* buf,
                       int buf_len,
                       CompletionOnceCallback callback) override;

  // This function may be called.
  void Close(bool not_reusable) override;

  bool IsResponseBodyComplete() const override;

  bool IsConnectionReused() const override;
  void SetConnectionReused() override;
  bool CanReuseConnection() const override;

  int64_t GetTotalReceivedBytes() const override;
  int64_t GetTotalSentBytes() const override;
  bool GetAlternativeService(
      AlternativeService* alternative_service) const override;

  // This function may be called.
  bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override;

  void GetSSLInfo(SSLInfo* ssl_info) override;
  void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) override;
  bool GetRemoteEndpoint(IPEndPoint* endpoint) override;
  Error GetTokenBindingSignature(crypto::ECPrivateKey* key,
                                 TokenBindingType tb_type,
                                 std::vector<uint8_t>* out) override;
  void Drain(HttpNetworkSession* session) override;
  void PopulateNetErrorDetails(NetErrorDetails* details) override;

  // This function may be called.
  void SetPriority(RequestPriority priority) override;

  HttpStream* RenewStreamForAuth() override;
  void SetRequestHeadersCallback(RequestHeadersCallback callback) override {}

 private:
  bool has_load_timing_info_;
  LoadTimingInfo load_timing_info_;
};

}  // namespace net

#endif  // NET_HTTP_PROXY_CONNECT_REDIRECT_HTTP_STREAM_H_