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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Safe Browsing utility functions.
#ifndef COMPONENTS_SAFE_BROWSING_CORE_COMMON_UTILS_H_
#define COMPONENTS_SAFE_BROWSING_CORE_COMMON_UTILS_H_
#include "base/time/time.h"
#include "components/safe_browsing/core/browser/db/v4_protocol_manager_util.h"
#include "components/safe_browsing/core/common/proto/csd.pb.h"
#include "components/safe_browsing/core/common/safebrowsing_constants.h"
#include "services/network/public/cpp/simple_url_loader.h"
#include "services/network/public/mojom/fetch_api.mojom-shared.h"
#include "url/gurl.h"
namespace policy {
class BrowserPolicyConnector;
} // namespace policy
namespace base {
class TimeDelta;
} // namespace base
namespace network {
struct ResourceRequest;
} // namespace network
namespace security_interstitials {
struct UnsafeResource;
}
class PrefService;
namespace safe_browsing {
// Shorten URL by replacing its contents with its SHA256 hash if it has data
// scheme.
std::string ShortURLForReporting(const GURL& url);
// Gets the |ProfileManagementStatus| for the current machine. The method
// currently works only on Windows and ChromeOS. The |bpc| parameter is used
// only on ChromeOS, and may be |nullptr|.
ChromeUserPopulation::ProfileManagementStatus GetProfileManagementStatus(
const policy::BrowserPolicyConnector* bpc);
// Util for storing a future alarm time in a pref. |delay| is how much time into
// the future the alarm is set for. Calling GetDelayFromPref() later will return
// a shorter delay, or 0 if it's unset or passed..
void SetDelayInPref(PrefService* prefs,
const char* pref_name,
const base::TimeDelta& delay);
base::TimeDelta GetDelayFromPref(PrefService* prefs, const char* pref_name);
// Safe Browsing backend cannot get a reliable reputation of a URL if
// (1) URL is not valid
// (2) URL doesn't have http or https scheme
// (3) It maps to a local host.
// (4) Its hostname is an IP Address that is assigned from IP literal.
// (5) Its hostname is a dotless domain.
// (6) Its hostname is less than 4 characters.
bool CanGetReputationOfUrl(const GURL& url);
// List of callers of
// `SetAccessTokenAndClearCookieInResourceRequest`. This is used for
// logging the histogram SafeBrowsing.AuthenticatedCookieResetEndpoint.
//
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class SafeBrowsingAuthenticatedEndpoint {
kDeepScanning = 0,
kDownloadProtection = 1,
kExtensionTelemetry = 2,
kClientSideDetection = 3,
kPasswordProtection = 4,
kThreatDetails = 5,
kRealtimeUrlLookup = 6,
kMaxValue = kRealtimeUrlLookup,
};
// When cookies are changed on this request, log the
// SafeBrowsing.AuthenticatedCookieResetEndpoint histogram.
void LogAuthenticatedCookieResets(network::ResourceRequest& resource_request,
SafeBrowsingAuthenticatedEndpoint endpoint);
// Set |access_token| in |resource_request|. Remove cookies in the request
// since we only need one identifier.
void SetAccessTokenAndClearCookieInResourceRequest(
network::ResourceRequest* resource_request,
const std::string& access_token);
// Record HTTP response code when there's no error in fetching an HTTP
// request, and the error code, when there is.
// |metric_name| is the name of the UMA metric to record the response code or
// error code against, |net_error| represents the net error code of the HTTP
// request, and |response code| represents the HTTP response code received
// from the server.
void RecordHttpResponseOrErrorCode(const char* metric_name,
int net_error,
int response_code);
// If the network response for a request has errors, the corresponding service
// usually increments the backoff counter. However, some errors are not related
// to the network infrastructure and therefore don't require this. This function
// returns whether an error is considered retriable and doesn't need to
// increment backoff.
bool ErrorIsRetriable(int net_error, int http_error);
// We populate a parallel set of metrics to differentiate some threat sources.
std::string GetExtraMetricsSuffix(
security_interstitials::UnsafeResource unsafe_resource);
// We populate a parallel set of metrics to differentiate some threat subtypes.
std::string GetExtraExtraMetricsSuffix(
security_interstitials::UnsafeResource unsafe_resource);
// Return the threat_type string for unsafe site visits.
std::string GetThreatTypeStringForInterstitial(
safe_browsing::SBThreatType threat_type);
} // namespace safe_browsing
#endif // COMPONENTS_SAFE_BROWSING_CORE_COMMON_UTILS_H_
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