| // Copyright 2019 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_LOOKALIKES_SAFETY_TIP_WEB_CONTENTS_OBSERVER_H_ |
| #define CHROME_BROWSER_LOOKALIKES_SAFETY_TIP_WEB_CONTENTS_OBSERVER_H_ |
| |
| #include <optional> |
| |
| #include "base/functional/callback_forward.h" |
| #include "base/memory/raw_ptr.h" |
| #include "build/build_config.h" |
| #include "chrome/browser/lookalikes/lookalike_url_service.h" |
| #include "chrome/browser/lookalikes/safety_tip_ui.h" |
| #include "components/security_state/core/security_state.h" |
| #include "content/public/browser/navigation_handle.h" |
| #include "content/public/browser/visibility.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| #include "services/metrics/public/cpp/ukm_source_id.h" |
| #include "ui/views/widget/widget.h" |
| #include "url/gurl.h" |
| #include "url/origin.h" |
| |
| #if BUILDFLAG(IS_ANDROID) |
| #include "chrome/browser/lookalikes/safety_tip_message_delegate_android.h" |
| #endif |
| |
| class Profile; |
| |
| // Observes navigations and triggers a Safety Tip warning if a visited site is |
| // determined to be a lookalike. |
| class SafetyTipWebContentsObserver |
| : public content::WebContentsObserver, |
| public content::WebContentsUserData<SafetyTipWebContentsObserver> { |
| public: |
| ~SafetyTipWebContentsObserver() override; |
| |
| // content::WebContentsObserver: |
| void DidFinishNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void OnVisibilityChanged(content::Visibility visibility) override; |
| |
| // Returns the info about the Safety Tip (if any) that was assigned to the |
| // currently visible navigation entry. This field will be set even if the UI |
| // was not actually shown because the feature was disabled. |
| security_state::SafetyTipInfo GetSafetyTipInfoForVisibleNavigation() const; |
| |
| // Allows tests to register a callback to be called when the next safety tip |
| // check finishes. |
| void RegisterSafetyTipCheckCallbackForTesting(base::OnceClosure callback); |
| |
| // Allows tests to register a callback called when the warning closes. |
| void RegisterSafetyTipCloseCallbackForTesting(base::OnceClosure callback); |
| |
| // Allows tests to see whether a safety tip check has already completed since |
| // construction or last reset, and selectively register a callback if not. |
| bool safety_tip_check_pending_for_testing() { |
| return safety_tip_check_pending_for_testing_; |
| } |
| |
| void reset_safety_tip_check_pending_for_testing() { |
| safety_tip_check_pending_for_testing_ = true; |
| } |
| |
| private: |
| friend class content::WebContentsUserData<SafetyTipWebContentsObserver>; |
| |
| explicit SafetyTipWebContentsObserver(content::WebContents* web_contents); |
| |
| // Possibly show a Safety Tip. Called on visibility changes and page load. |
| void MaybeShowSafetyTip(ukm::SourceId navigation_source_id, |
| bool called_from_visibility_check, |
| bool record_ukm_if_tip_not_shown); |
| |
| // A SafetyTipCheckCallback. Called by the safety tip service when a |
| // safety tip result is available. |
| void HandleSafetyTipCheckResult(ukm::SourceId navigation_source_id, |
| bool called_from_visibility_check, |
| bool record_ukm_if_tip_not_shown, |
| SafetyTipCheckResult result); |
| |
| // A helper method that calls and resets |
| // |safety_tip_check_callback_for_testing_| if it is set. Only flips |
| // |safety_tip_check_pending_for_testing_| if |heuristics_checked| is set. |
| void MaybeCallSafetyTipCheckCallback(bool heuristics_checked); |
| |
| // A helper method to handle finalizing a safety tip check. This method |
| // records UKM data about triggered heuristics if |record_ukm| is true, and |
| // calls MaybeCallSafetyTipCheckCallback. |
| void FinalizeSafetyTipCheckWhenTipNotShown( |
| bool record_ukm, |
| SafetyTipCheckResult result, |
| ukm::SourceId navigation_source_id); |
| |
| raw_ptr<Profile> profile_; |
| |
| // Used to cache the last safety tip info (and associated navigation entry ID) |
| // so that Page Info can fetch this information without performing a |
| // safety tip check. Resets type to kNone and safe_url to empty on new top |
| // frame navigations. Set even if the feature to show the UI is disabled. |
| security_state::SafetyTipInfo last_navigation_safety_tip_info_; |
| int last_safety_tip_navigation_entry_id_ = 0; |
| |
| // The initiator origin and URL of the most recently committed navigation. |
| // Presently, these are used in metrics to differentiate same-origin |
| // navigations (i.e. when the user stays on a flagged page). |
| std::optional<url::Origin> last_committed_initiator_origin_; |
| GURL last_committed_url_; |
| |
| base::OnceClosure safety_tip_check_callback_for_testing_; |
| // Whether or not heuristics have yet been checked yet. |
| bool safety_tip_check_pending_for_testing_ = true; |
| |
| base::OnceClosure safety_tip_close_callback_for_testing_; |
| |
| #if BUILDFLAG(IS_ANDROID) |
| SafetyTipMessageDelegateAndroid delegate_; |
| #endif |
| |
| base::WeakPtrFactory<SafetyTipWebContentsObserver> weak_factory_{this}; |
| WEB_CONTENTS_USER_DATA_KEY_DECL(); |
| }; |
| |
| #endif // CHROME_BROWSER_LOOKALIKES_SAFETY_TIP_WEB_CONTENTS_OBSERVER_H_ |