blob: 8f92d3f10c641b74f74b9cd6abc4aa2d91cf3a8e [file] [log] [blame]
// Copyright 2019 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.
#include <stdint.h>
#include <memory>
#include <string>
#include "base/callback_forward.h"
#include "base/containers/flat_map.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
class GURL;
namespace base {
class FilePath;
} // namespace base
namespace update_client {
class NetworkFetcher {
// If the request does not have an X-Retry-After header, implementations
// should pass -1 for |xheader_retry_after_sec|.
using PostRequestCompleteCallback =
base::OnceCallback<void(std::unique_ptr<std::string> response_body,
int net_error,
const std::string& header_etag,
int64_t xheader_retry_after_sec)>;
using DownloadToFileCompleteCallback =
base::OnceCallback<void(int net_error, int64_t content_size)>;
using ResponseStartedCallback =
base::OnceCallback<void(int response_code, int64_t content_length)>;
using ProgressCallback = base::RepeatingCallback<void(int64_t current)>;
// The ETag header carries the ECSDA signature of the POST response, if
// signing has been used.
static constexpr char kHeaderEtag[] = "ETag";
// The server uses the optional X-Retry-After header to indicate that the
// current request should not be attempted again.
// The value of the header is the number of seconds to wait before trying to
// do a subsequent update check. Only the values retrieved over HTTPS are
// trusted.
static constexpr char kHeaderXRetryAfter[] = "X-Retry-After";
virtual ~NetworkFetcher() = default;
virtual void PostRequest(
const GURL& url,
const std::string& post_data,
const base::flat_map<std::string, std::string>& post_additional_headers,
ResponseStartedCallback response_started_callback,
ProgressCallback progress_callback,
PostRequestCompleteCallback post_request_complete_callback) = 0;
virtual void DownloadToFile(
const GURL& url,
const base::FilePath& file_path,
ResponseStartedCallback response_started_callback,
ProgressCallback progress_callback,
DownloadToFileCompleteCallback download_to_file_complete_callback) = 0;
NetworkFetcher() = default;
class NetworkFetcherFactory : public base::RefCounted<NetworkFetcherFactory> {
virtual std::unique_ptr<NetworkFetcher> Create() const = 0;
friend class base::RefCounted<NetworkFetcherFactory>;
NetworkFetcherFactory() = default;
virtual ~NetworkFetcherFactory() = default;
} // namespace update_client