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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_COMMON_GOOGLE_URL_LOADER_THROTTLE_H_
#define CHROME_COMMON_GOOGLE_URL_LOADER_THROTTLE_H_
#include <optional>
#include <vector>
#include "base/time/time.h"
#include "build/build_config.h"
#include "chrome/common/renderer_configuration.mojom.h"
#include "components/signin/public/base/signin_buildflags.h"
#include "extensions/buildflags/buildflags.h"
#include "services/network/public/mojom/network_context.mojom.h"
#include "third_party/blink/public/common/loader/url_loader_throttle.h"
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
#include "chrome/common/bound_session_request_throttled_handler.h"
#endif
// This class changes requests for Google-specific features (e.g. adding &
// removing Variations headers, Safe Search & Restricted YouTube & restricting
// consumer accounts through group policy.
class GoogleURLLoaderThrottle final : public blink::URLLoaderThrottle {
public:
explicit GoogleURLLoaderThrottle(
#if BUILDFLAG(IS_ANDROID)
const std::string& client_data_header,
#endif
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
std::unique_ptr<BoundSessionRequestThrottledHandler>
bound_session_request_throttled_handler,
#endif
chrome::mojom::DynamicParamsPtr dynamic_params);
~GoogleURLLoaderThrottle() override;
static void UpdateCorsExemptHeader(
network::mojom::NetworkContextParams* params);
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
// Elements of these enum are ordered in such a way that two independent
// statuses can be merged together using `std::max()` function to get an
// aggregate status.
enum class RequestBoundSessionStatus {
kNotCovered = 0,
kCoveredWithFreshCookie = 1,
kCoveredWithMissingCookie = 2
};
static RequestBoundSessionStatus GetRequestBoundSessionStatus(
const GURL& request_url,
const std::vector<chrome::mojom::BoundSessionThrottlerParamsPtr>&
bound_session_throttler_params);
#endif // BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
// blink::URLLoaderThrottle:
void DetachFromCurrentSequence() override;
void WillStartRequest(network::ResourceRequest* request,
bool* defer) override;
void WillRedirectRequest(
net::RedirectInfo* redirect_info,
const network::mojom::URLResponseHead& response_head,
bool* defer,
std::vector<std::string>* to_be_removed_headers,
net::HttpRequestHeaders* modified_headers,
net::HttpRequestHeaders* modified_cors_exempt_headers) override;
void WillProcessResponse(const GURL& response_url,
network::mojom::URLResponseHead* response_head,
bool* defer) override;
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
void WillOnCompleteWithError(
const network::URLLoaderCompletionStatus& status) override;
#endif // BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
private:
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
void OnDeferRequestForBoundSessionCompleted(
BoundSessionRequestThrottledHandler::UnblockAction resume,
chrome::mojom::ResumeBlockedRequestsTrigger resume_trigger);
void ResumeOrCancelRequest(
BoundSessionRequestThrottledHandler::UnblockAction resume,
chrome::mojom::ResumeBlockedRequestsTrigger resume_trigger);
std::unique_ptr<BoundSessionRequestThrottledHandler>
bound_session_request_throttled_handler_;
std::optional<base::TimeTicks> bound_session_request_throttled_start_time_;
bool is_main_frame_navigation_ = false;
bool sends_cookies_ = false;
// `true` if at least one URL in the redirect chain was affected.
bool is_covered_by_bound_session_ = false;
bool is_deferred_for_bound_session_ = false;
std::optional<chrome::mojom::ResumeBlockedRequestsTrigger>
deferred_request_resume_trigger_;
#endif
#if BUILDFLAG(IS_ANDROID)
std::string client_data_header_;
#endif
const chrome::mojom::DynamicParamsPtr dynamic_params_;
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
base::WeakPtrFactory<GoogleURLLoaderThrottle> weak_factory_{this};
#endif
};
#endif // CHROME_COMMON_GOOGLE_URL_LOADER_THROTTLE_H_
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