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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.
#ifndef COMPONENTS_SENSITIVE_CONTENT_SENSITIVE_CONTENT_MANAGER_H_
#define COMPONENTS_SENSITIVE_CONTENT_SENSITIVE_CONTENT_MANAGER_H_
#include "base/memory/raw_ref.h"
#include "base/time/time.h"
#include "components/autofill/content/browser/scoped_autofill_managers_observation.h"
#include "components/autofill/core/browser/foundations/autofill_driver.h"
#include "components/autofill/core/browser/foundations/autofill_manager.h"
#include "components/autofill/core/common/unique_ids.h"
namespace content {
class WebContents;
} // namespace content
namespace sensitive_content {
class SensitiveContentClient;
// Contains platform-independent logic which tracks whether sensitive form
// fields are present or not. It is owned by the `SensitiveContentClient`.
class SensitiveContentManager final
: public autofill::AutofillManager::Observer {
public:
SensitiveContentManager(content::WebContents* web_contents,
SensitiveContentClient* client);
SensitiveContentManager(const SensitiveContentManager&) = delete;
SensitiveContentManager& operator=(const SensitiveContentManager&) = delete;
~SensitiveContentManager() override;
private:
// Notifies the `SensitiveContentClient` if the content sensitivity has
// changed (i.e. the current content sensitivity is different than
// `last_content_was_sensitive_`). Returns true if the content sensitivity has
// changed.
bool UpdateContentSensitivity();
// autofill::AutofillManager::Observer:
// Adds the sensitive fields of `form_id` to `sensitive_fields_`. It is called
// when fields receive predictions. It will be initially called with
// heuristics predictions, and later called with server predictions.
void OnFieldTypesDetermined(autofill::AutofillManager& manager,
autofill::FormGlobalId form_id,
FieldTypeSource) override;
// Removes the fields of `removed_forms` from `sensitive_fields_`.
// `removed_forms` are forms which have just been from the DOM.
void OnBeforeFormsSeen(
autofill::AutofillManager& manager,
base::span<const autofill::FormGlobalId> updated_forms,
base::span<const autofill::FormGlobalId> removed_forms) override;
// Removes sensitive fields from `sensitive_fields_` when the manager becomes
// not active (i.e. one of: inactive, pending reset or pending deletion). Adds
// sensitive fields to `sensitive_fields_` when the manager becomes active
// again.
void OnAutofillManagerStateChanged(
autofill::AutofillManager& manager,
autofill::AutofillDriver::LifecycleState previous,
autofill::AutofillDriver::LifecycleState current) override;
// The last content sensitivity known by the `SensitiveContentClient` (by
// default, initially, the content is considered not sensitive). Used to make
// sure calls to the client are made only when the content sensitivity
// changes, and not when it stays the same.
bool last_content_was_sensitive_ = false;
// Used to record the time elapsed between when the content became sensitive
// and when the content became not sensitive again.
std::optional<base::TimeTicks> content_became_sensitive_timestamp_;
// Used to record the latency between when a form is first seen or last
// modified, until the content is marked as sensitive.
std::map<autofill::FormGlobalId, base::TimeTicks>
latency_until_sensitive_timer_;
const raw_ref<SensitiveContentClient> client_;
std::set<autofill::FieldGlobalId> sensitive_fields_;
autofill::ScopedAutofillManagersObservation autofill_managers_observation_{
this};
};
} // namespace sensitive_content
#endif // COMPONENTS_SENSITIVE_CONTENT_SENSITIVE_CONTENT_MANAGER_H_
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