| // Copyright 2017 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 "chrome/browser/ui/blocked_content/tab_under_navigation_throttle.h" |
| |
| #include <string> |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/callback.h" |
| #include "base/logging.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/strings/stringprintf.h" |
| #include "build/build_config.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/content_settings/tab_specific_content_settings.h" |
| #include "chrome/browser/ui/blocked_content/list_item_position.h" |
| #include "chrome/browser/ui/blocked_content/popup_opener_tab_helper.h" |
| #include "components/rappor/public/rappor_parameters.h" |
| #include "components/rappor/public/rappor_utils.h" |
| #include "components/rappor/rappor_service_impl.h" |
| #include "content/public/browser/navigation_handle.h" |
| #include "content/public/browser/render_frame_host.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/browser/web_contents_delegate.h" |
| #include "content/public/common/console_message_level.h" |
| #include "services/metrics/public/cpp/ukm_builders.h" |
| #include "services/metrics/public/cpp/ukm_recorder.h" |
| #include "url/gurl.h" |
| #include "url/origin.h" |
| |
| #if defined(OS_ANDROID) |
| #include "chrome/browser/ui/android/infobars/framebust_block_infobar.h" |
| #include "chrome/browser/ui/interventions/framebust_block_message_delegate.h" |
| #else |
| #include "chrome/browser/ui/blocked_content/framebust_block_tab_helper.h" |
| #endif |
| |
| namespace { |
| |
| void LogAction(TabUnderNavigationThrottle::Action action) { |
| UMA_HISTOGRAM_ENUMERATION("Tab.TabUnderAction", action, |
| TabUnderNavigationThrottle::Action::kCount); |
| } |
| |
| #if defined(OS_ANDROID) |
| typedef FramebustBlockMessageDelegate::InterventionOutcome InterventionOutcome; |
| |
| void LogOutcome(InterventionOutcome outcome) { |
| TabUnderNavigationThrottle::Action action; |
| switch (outcome) { |
| case InterventionOutcome::kAccepted: |
| action = TabUnderNavigationThrottle::Action::kAcceptedIntervention; |
| break; |
| case InterventionOutcome::kDeclinedAndNavigated: |
| action = TabUnderNavigationThrottle::Action::kClickedThrough; |
| break; |
| } |
| LogAction(action); |
| } |
| #else |
| void OnListItemClicked(const GURL& url, size_t index, size_t total_size) { |
| LogAction(TabUnderNavigationThrottle::Action::kClickedThrough); |
| UMA_HISTOGRAM_ENUMERATION("Tab.TabUnder.ClickThroughPosition", |
| GetListItemPositionFromDistance(index, total_size), |
| ListItemPosition::kLast); |
| } |
| #endif |
| |
| void LogTabUnderAttempt(content::NavigationHandle* handle, |
| base::Optional<ukm::SourceId> opener_source_id) { |
| LogAction(TabUnderNavigationThrottle::Action::kDidTabUnder); |
| |
| // Log RAPPOR / UKM based on the opener URL, not the URL navigated to. |
| const GURL& opener_url = handle->GetWebContents()->GetLastCommittedURL(); |
| if (rappor::RapporService* rappor_service = |
| g_browser_process->rappor_service()) { |
| rappor_service->RecordSampleString( |
| "Tab.TabUnder.Opener", rappor::UMA_RAPPOR_TYPE, |
| rappor::GetDomainAndRegistrySampleFromGURL(opener_url)); |
| } |
| |
| // The source id should generally be set, except for very rare circumstances |
| // where the popup opener tab helper is not observing at the time the |
| // previous navigation commit. |
| ukm::UkmRecorder* ukm_recorder = ukm::UkmRecorder::Get(); |
| if (opener_source_id && ukm_recorder) { |
| ukm::builders::AbusiveExperienceHeuristic(opener_source_id.value()) |
| .SetDidTabUnder(true) |
| .Record(ukm_recorder); |
| } |
| } |
| |
| void ShowUI(content::WebContents* web_contents, const GURL& url) { |
| #if defined(OS_ANDROID) |
| FramebustBlockInfoBar::Show( |
| web_contents, base::MakeUnique<FramebustBlockMessageDelegate>( |
| web_contents, url, base::BindOnce(&LogOutcome))); |
| #else |
| // TODO(csharrison): Instrument click-through metrics. This may be a bit |
| // difficult and requires attribution since this UI surface is shared with |
| // framebusting. |
| TabSpecificContentSettings* content_settings = |
| TabSpecificContentSettings::FromWebContents(web_contents); |
| DCHECK(content_settings); |
| content_settings->OnFramebustBlocked(url, base::BindOnce(&OnListItemClicked)); |
| #endif |
| } |
| |
| } // namespace |
| |
| const base::Feature TabUnderNavigationThrottle::kBlockTabUnders{ |
| "BlockTabUnders", base::FEATURE_DISABLED_BY_DEFAULT}; |
| |
| // static |
| std::unique_ptr<content::NavigationThrottle> |
| TabUnderNavigationThrottle::MaybeCreate(content::NavigationHandle* handle) { |
| if (handle->IsInMainFrame()) |
| return base::WrapUnique(new TabUnderNavigationThrottle(handle)); |
| return nullptr; |
| } |
| |
| TabUnderNavigationThrottle::~TabUnderNavigationThrottle() = default; |
| |
| TabUnderNavigationThrottle::TabUnderNavigationThrottle( |
| content::NavigationHandle* handle) |
| : content::NavigationThrottle(handle), |
| block_(base::FeatureList::IsEnabled(kBlockTabUnders)) {} |
| |
| // static |
| bool TabUnderNavigationThrottle::IsSuspiciousClientRedirect( |
| content::NavigationHandle* navigation_handle, |
| bool started_in_background) { |
| // Some browser initiated navigations have HasUserGesture set to false. This |
| // should eventually be fixed in crbug.com/617904. In the meantime, just dont |
| // block browser initiated ones. |
| if (!started_in_background || !navigation_handle->IsInMainFrame() || |
| navigation_handle->HasUserGesture() || |
| !navigation_handle->IsRendererInitiated()) { |
| return false; |
| } |
| |
| // An empty previous URL indicates this was the first load. We filter these |
| // out because we're primarily interested in sites which navigate themselves |
| // away while in the background. |
| const GURL& previous_main_frame_url = |
| navigation_handle->HasCommitted() |
| ? navigation_handle->GetPreviousURL() |
| : navigation_handle->GetWebContents()->GetLastCommittedURL(); |
| if (previous_main_frame_url.is_empty()) |
| return false; |
| |
| // Only cross origin navigations are considered tab-unders. |
| if (url::Origin::Create(previous_main_frame_url) |
| .IsSameOriginWith(url::Origin::Create(navigation_handle->GetURL()))) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| content::NavigationThrottle::ThrottleCheckResult |
| TabUnderNavigationThrottle::MaybeBlockNavigation() { |
| content::WebContents* contents = navigation_handle()->GetWebContents(); |
| auto* popup_opener = PopupOpenerTabHelper::FromWebContents(contents); |
| |
| if (!seen_tab_under_ && popup_opener && |
| popup_opener->has_opened_popup_since_last_user_gesture() && |
| IsSuspiciousClientRedirect(navigation_handle(), started_in_background_)) { |
| seen_tab_under_ = true; |
| popup_opener->OnDidTabUnder(); |
| LogTabUnderAttempt(navigation_handle(), |
| popup_opener->last_committed_source_id()); |
| |
| if (block_) { |
| const GURL& url = navigation_handle()->GetURL(); |
| const std::string error = |
| base::StringPrintf(kBlockTabUnderFormatMessage, url.spec().c_str()); |
| contents->GetMainFrame()->AddMessageToConsole( |
| content::CONSOLE_MESSAGE_LEVEL_ERROR, error.c_str()); |
| LogAction(Action::kBlocked); |
| ShowUI(contents, url); |
| return content::NavigationThrottle::CANCEL; |
| } |
| } |
| return content::NavigationThrottle::PROCEED; |
| } |
| |
| content::NavigationThrottle::ThrottleCheckResult |
| TabUnderNavigationThrottle::WillStartRequest() { |
| LogAction(Action::kStarted); |
| started_in_background_ = !navigation_handle()->GetWebContents()->IsVisible(); |
| return MaybeBlockNavigation(); |
| } |
| |
| content::NavigationThrottle::ThrottleCheckResult |
| TabUnderNavigationThrottle::WillRedirectRequest() { |
| return MaybeBlockNavigation(); |
| } |
| |
| const char* TabUnderNavigationThrottle::GetNameForLogging() { |
| return "TabUnderNavigationThrottle"; |
| } |