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// 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 "content/browser/interest_group/for_debugging_only_report_util.h"
#include <map>
#include <optional>
#include "base/time/time.h"
#include "content/browser/interest_group/interest_group_features.h"
#include "third_party/blink/public/common/features.h"
#include "url/origin.h"
namespace content {
bool ShouldSampleDebugReport() {
// TODO(crbug.com/391877228): Set its value based on cookie settings.
bool for_debugging_only_sampling = false;
// Overwrite `for_debugging_only_sampling` to true, for testing purpose.
if (base::FeatureList::IsEnabled(
features::kFledgeDoSampleDebugReportForTesting)) {
for_debugging_only_sampling = true;
}
return for_debugging_only_sampling;
}
std::optional<base::Time> GetSampleDebugReportStartingFrom() {
if (blink::features::kFledgeEnableFilteringDebugReportStartingFrom.Get() !=
base::Milliseconds(0)) {
// Also ceil kFledgeEnableFilteringDebugReportStartingFrom to its nearest
// next hour, in the same way as lockout and cooldown start time are ceiled.
// Otherwise, it's possible that the ceiled lockout/cooldowns collected
// before this flag being greater than the flag, which caused them not being
// ignored when they should be.
return CeilToNearestNextHour(
blink::features::kFledgeEnableFilteringDebugReportStartingFrom.Get());
}
return std::nullopt;
}
base::Time CeilToNearestNextHour(base::TimeDelta delta) {
return base::Time::FromDeltaSinceWindowsEpoch(
delta.CeilToMultiple(base::Hours(1)));
}
std::optional<base::TimeDelta> ConvertDebugReportCooldownTypeToDuration(
DebugReportCooldownType type) {
switch (type) {
case DebugReportCooldownType::kShortCooldown:
return blink::features::kFledgeDebugReportShortCooldown.Get();
case DebugReportCooldownType::kRestrictedCooldown:
return blink::features::kFledgeDebugReportRestrictedCooldown.Get();
}
return std::nullopt;
}
bool IsInDebugReportLockout(const std::optional<DebugReportLockout>& lockout,
const base::Time now) {
if (!lockout.has_value()) {
return false;
}
base::Time filtering_starting_from = base::Time::FromDeltaSinceWindowsEpoch(
blink::features::kFledgeEnableFilteringDebugReportStartingFrom.Get()
.CeilToMultiple(base::Hours(1)));
bool is_lockout_before_filtering_starting =
lockout->starting_time < filtering_starting_from;
bool is_in_lockout = lockout->starting_time + lockout->duration >= now;
return !is_lockout_before_filtering_starting && is_in_lockout;
}
bool IsInDebugReportCooldown(
const url::Origin& origin,
const std::map<url::Origin, DebugReportCooldown>& cooldowns_map,
const base::Time now) {
const auto cooldown_it = cooldowns_map.find(origin);
if (cooldown_it != cooldowns_map.end()) {
std::optional<base::TimeDelta> duration =
ConvertDebugReportCooldownTypeToDuration(cooldown_it->second.type);
if (duration.has_value()) {
bool is_cooldown_before_filtering_starting =
cooldown_it->second.starting_time <
CeilToNearestNextHour(
blink::features::kFledgeEnableFilteringDebugReportStartingFrom
.Get());
bool is_in_cooldown =
cooldown_it->second.starting_time + *duration >= now;
if (!is_cooldown_before_filtering_starting && is_in_cooldown) {
return true;
}
}
}
return false;
}
} // namespace content
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