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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/safe_browsing/content/browser/url_checker_holder.h"
#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/memory/ptr_util.h"
#include "base/memory/scoped_refptr.h"
#include "base/metrics/histogram_functions.h"
#include "components/safe_browsing/content/browser/web_ui/safe_browsing_ui.h"
#include "components/safe_browsing/core/browser/hashprefix_realtime/hash_realtime_service.h"
#include "components/safe_browsing/core/browser/realtime/url_lookup_service_base.h"
#include "components/safe_browsing/core/browser/safe_browsing_url_checker_impl.h"
#include "components/safe_browsing/core/browser/url_checker_delegate.h"
#include "components/safe_browsing/core/common/features.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_contents.h"
#include "net/base/load_flags.h"
#include "services/network/public/mojom/url_response_head.mojom.h"
namespace safe_browsing {
UrlCheckerHolder::OnCompleteCheckResult::OnCompleteCheckResult(
bool proceed,
bool showed_interstitial,
bool has_post_commit_interstitial_skipped,
SafeBrowsingUrlCheckerImpl::PerformedCheck performed_check,
bool all_checks_completed)
: proceed(proceed),
showed_interstitial(showed_interstitial),
has_post_commit_interstitial_skipped(
has_post_commit_interstitial_skipped),
performed_check(performed_check),
all_checks_completed(all_checks_completed) {}
UrlCheckerHolder::StartParams::StartParams(
net::HttpRequestHeaders headers,
int load_flags,
bool has_user_gesture,
GURL url,
std::string method)
: headers(headers),
load_flags(load_flags),
has_user_gesture(has_user_gesture),
url(url),
method(method) {}
UrlCheckerHolder::StartParams::StartParams(const StartParams& other) = default;
UrlCheckerHolder::StartParams::~StartParams() = default;
UrlCheckerHolder::UrlCheckerHolder(
GetDelegateCallback delegate_getter,
content::FrameTreeNodeId frame_tree_node_id,
std::optional<int64_t> navigation_id,
base::RepeatingCallback<content::WebContents*()> web_contents_getter,
OnCompleteCheckCallback complete_callback,
bool url_real_time_lookup_enabled,
bool can_check_db,
bool can_check_high_confidence_allowlist,
std::string url_lookup_service_metric_suffix,
base::WeakPtr<RealTimeUrlLookupServiceBase> url_lookup_service,
base::WeakPtr<HashRealTimeService> hash_realtime_service,
hash_realtime_utils::HashRealTimeSelection hash_realtime_selection,
bool is_async_check,
bool check_allowlist_before_hash_database,
SessionID tab_id,
std::optional<internal::ReferringAppInfo> referring_app_info)
: delegate_getter_(std::move(delegate_getter)),
frame_tree_node_id_(frame_tree_node_id),
navigation_id_(navigation_id),
web_contents_getter_(web_contents_getter),
complete_callback_(std::move(complete_callback)),
url_real_time_lookup_enabled_(url_real_time_lookup_enabled),
can_check_db_(can_check_db),
can_check_high_confidence_allowlist_(can_check_high_confidence_allowlist),
url_lookup_service_metric_suffix_(url_lookup_service_metric_suffix),
url_lookup_service_(url_lookup_service),
hash_realtime_service_(hash_realtime_service),
hash_realtime_selection_(hash_realtime_selection),
creation_time_(base::TimeTicks::Now()),
is_async_check_(is_async_check),
check_allowlist_before_hash_database_(
check_allowlist_before_hash_database),
tab_id_(tab_id),
referring_app_info_(referring_app_info) {}
UrlCheckerHolder::~UrlCheckerHolder() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
base::UmaHistogramMediumTimes(
"SafeBrowsing.BrowserThrottle.CheckerOnIOLifetime",
base::TimeTicks::Now() - creation_time_);
}
void UrlCheckerHolder::Start(const StartParams& params) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
scoped_refptr<UrlCheckerDelegate> url_checker_delegate =
std::move(delegate_getter_).Run();
if (url_checker_for_testing_) {
url_checker_ = std::move(url_checker_for_testing_);
} else {
url_checker_ = std::make_unique<SafeBrowsingUrlCheckerImpl>(
params.headers, params.load_flags, params.has_user_gesture,
url_checker_delegate, web_contents_getter_, nullptr,
content::ChildProcessHost::kInvalidUniqueID, std::nullopt,
frame_tree_node_id_.value(), navigation_id_,
url_real_time_lookup_enabled_, can_check_db_,
can_check_high_confidence_allowlist_, url_lookup_service_metric_suffix_,
content::GetUIThreadTaskRunner({}), url_lookup_service_,
hash_realtime_service_, hash_realtime_selection_, is_async_check_,
check_allowlist_before_hash_database_, tab_id_, referring_app_info_);
}
CheckUrl(params.url, params.method);
}
void UrlCheckerHolder::CheckUrl(const GURL& url, const std::string& method) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
DCHECK(url_checker_);
pending_checks_++;
redirect_chain_.push_back(url);
url_checker_->CheckUrl(url, method,
base::BindOnce(&UrlCheckerHolder::OnCheckUrlResult,
base::Unretained(this)));
}
void UrlCheckerHolder::SwapCompleteCallback(OnCompleteCheckCallback callback) {
complete_callback_ = std::move(callback);
}
const std::vector<GURL>& UrlCheckerHolder::GetRedirectChain() {
return redirect_chain_;
}
void UrlCheckerHolder::SetUrlCheckerForTesting(
std::unique_ptr<SafeBrowsingUrlCheckerImpl> checker) {
url_checker_for_testing_ = std::move(checker);
}
bool UrlCheckerHolder::IsRealTimeCheckForTesting() {
return url_real_time_lookup_enabled_ ||
hash_realtime_selection_ !=
hash_realtime_utils::HashRealTimeSelection::kNone;
}
bool UrlCheckerHolder::IsAsyncCheckForTesting() {
return is_async_check_;
}
bool UrlCheckerHolder::IsCheckAllowlistBeforeHashDatabaseForTesting() {
return check_allowlist_before_hash_database_;
}
void UrlCheckerHolder::AddUrlInRedirectChainForTesting(const GURL& url) {
redirect_chain_.push_back(url);
}
void UrlCheckerHolder::OnCheckUrlResult(
bool proceed,
bool showed_interstitial,
bool has_post_commit_interstitial_skipped,
SafeBrowsingUrlCheckerImpl::PerformedCheck performed_check) {
pending_checks_--;
bool all_checks_completed = pending_checks_ == 0;
OnCompleteCheckResult result(proceed, showed_interstitial,
has_post_commit_interstitial_skipped,
performed_check, all_checks_completed);
complete_callback_.Run(result);
}
} // namespace safe_browsing
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