| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/public/common/navigation/navigation_policy.h" |
| |
| #include "base/command_line.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/system/sys_info.h" |
| #include "services/network/public/cpp/features.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| void LogPerPolicyApplied(NavigationDownloadType type) { |
| UMA_HISTOGRAM_ENUMERATION("Navigation.DownloadPolicy.LogPerPolicyApplied", |
| type); |
| } |
| |
| void LogArbitraryPolicyPerDownload(NavigationDownloadType type) { |
| UMA_HISTOGRAM_ENUMERATION( |
| "Navigation.DownloadPolicy.LogArbitraryPolicyPerDownload", type); |
| } |
| } // namespace |
| |
| NavigationDownloadPolicy::NavigationDownloadPolicy() = default; |
| NavigationDownloadPolicy::~NavigationDownloadPolicy() = default; |
| NavigationDownloadPolicy::NavigationDownloadPolicy( |
| const NavigationDownloadPolicy&) = default; |
| |
| void NavigationDownloadPolicy::SetAllowed(NavigationDownloadType type) { |
| DCHECK(type != NavigationDownloadType::kDefaultAllow); |
| observed_types.set(static_cast<size_t>(type)); |
| } |
| |
| void NavigationDownloadPolicy::SetDisallowed(NavigationDownloadType type) { |
| DCHECK(type != NavigationDownloadType::kDefaultAllow); |
| observed_types.set(static_cast<size_t>(type)); |
| disallowed_types.set(static_cast<size_t>(type)); |
| } |
| |
| bool NavigationDownloadPolicy::IsType(NavigationDownloadType type) const { |
| DCHECK(type != NavigationDownloadType::kDefaultAllow); |
| return observed_types.test(static_cast<size_t>(type)); |
| } |
| |
| ResourceInterceptPolicy NavigationDownloadPolicy::GetResourceInterceptPolicy() |
| const { |
| if (disallowed_types.test( |
| static_cast<size_t>(NavigationDownloadType::kSandbox)) || |
| disallowed_types.test( |
| static_cast<size_t>(NavigationDownloadType::kOpenerCrossOrigin)) || |
| disallowed_types.test( |
| static_cast<size_t>(NavigationDownloadType::kAdFrame)) || |
| disallowed_types.test( |
| static_cast<size_t>(NavigationDownloadType::kAdFrameNoGesture))) { |
| return ResourceInterceptPolicy::kAllowPluginOnly; |
| } |
| return disallowed_types.any() ? ResourceInterceptPolicy::kAllowNone |
| : ResourceInterceptPolicy::kAllowAll; |
| } |
| |
| bool NavigationDownloadPolicy::IsDownloadAllowed() const { |
| return disallowed_types.none(); |
| } |
| |
| void NavigationDownloadPolicy::RecordHistogram() const { |
| if (observed_types.none()) { |
| LogPerPolicyApplied(NavigationDownloadType::kDefaultAllow); |
| LogArbitraryPolicyPerDownload(NavigationDownloadType::kDefaultAllow); |
| return; |
| } |
| |
| bool first_type_seen = false; |
| for (size_t i = 0; i < observed_types.size(); ++i) { |
| if (observed_types.test(i)) { |
| NavigationDownloadType policy = static_cast<NavigationDownloadType>(i); |
| DCHECK(policy != NavigationDownloadType::kDefaultAllow); |
| LogPerPolicyApplied(policy); |
| if (!first_type_seen) { |
| LogArbitraryPolicyPerDownload(policy); |
| first_type_seen = true; |
| } |
| } |
| } |
| DCHECK(first_type_seen); |
| } |
| |
| } // namespace blink |