chromium/chrome/browser/request_header_integrity/request_header_integrity_url_loader_throttle.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/request_header_integrity/request_header_integrity_url_loader_throttle.h"

#include <string>

#include "base/base64.h"
#include "base/containers/span.h"
#include "base/feature_list.h"
#include "base/hash/sha1.h"
#include "base/strings/string_util.h"
#include "build/branding_buildflags.h"
#include "chrome/browser/request_header_integrity/build_derived_values.h"
#include "chrome/common/channel_info.h"
#include "components/embedder_support/user_agent_utils.h"
#include "components/google/core/common/google_util.h"
#include "google_apis/google_api_keys.h"
#include "services/network/public/cpp/resource_request.h"

#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
#include "chrome/browser/request_header_integrity/internal/google_header_names.h"
#endif

#if !defined(CHANNEL_NAME_HEADER_NAME)
#define CHANNEL_NAME_HEADER_NAME …
#endif

#if !defined(LASTCHANGE_YEAR_HEADER_NAME)
#define LASTCHANGE_YEAR_HEADER_NAME …
#endif

#if !defined(VALIDATE_HEADER_NAME)
#define VALIDATE_HEADER_NAME …
#endif

#if !defined(COPYRIGHT_HEADER_NAME)
#define COPYRIGHT_HEADER_NAME …
#endif

namespace request_header_integrity {

namespace {

BASE_FEATURE(…);

// Returns extended, stable, beta, dev, or canary if a channel is available,
// otherwise the empty string.
std::string GetChannelName() { … }

}  // namespace

RequestHeaderIntegrityURLLoaderThrottle::
    RequestHeaderIntegrityURLLoaderThrottle() = default;

RequestHeaderIntegrityURLLoaderThrottle::
    ~RequestHeaderIntegrityURLLoaderThrottle() = default;

void RequestHeaderIntegrityURLLoaderThrottle::WillStartRequest(
    network::ResourceRequest* request,
    bool* defer) { … }

// static
bool RequestHeaderIntegrityURLLoaderThrottle::IsFeatureEnabled() { … }

}  // namespace request_header_integrity