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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 CHROME_BROWSER_ENTERPRISE_DATA_PROTECTION_DATA_PROTECTION_PAGE_USER_DATA_H_
#define CHROME_BROWSER_ENTERPRISE_DATA_PROTECTION_DATA_PROTECTION_PAGE_USER_DATA_H_
#include <string>
#include "components/safe_browsing/core/common/proto/realtimeapi.pb.h"
#include "content/public/browser/page_user_data.h"
namespace enterprise_data_protection {
// A structure holding all data protection settings for a given URL.
struct UrlSettings {
// The watermark text that should apply to tabs showing this URL. An empty
// string means no watermark should be shown.
std::string watermark_text;
bool allow_screenshots = true;
bool operator==(const UrlSettings& other) const;
// URL settings that imply no data protections are enabled.
static const UrlSettings& None();
};
// Page user data attached at the end of a WebContents navigation to remember
// the screenshot allow or deny state. This user data is attached in the
// DidFinishNavigation() step of the navigation.
//
// Note that because of the way Pages are managed by the navigation, this
// user data cannot be accessed before the page is ready to be committed.
// Specifically, this can't be accessed from steps like DidStartNavigation()
// or DidRedirectNavigation().
class DataProtectionPageUserData
: public content::PageUserData<DataProtectionPageUserData> {
public:
// Sets the RT URL lookup response for the page of the WebContents' primary
// main RFH. During navigations this should only be called after the page is
// ready to be committed, otherwise the state will be saved to an intermediate
// Page.
static void UpdateRTLookupResponse(
content::Page& page,
const std::string& identifier,
std::unique_ptr<safe_browsing::RTLookupResponse> rt_lookup_response);
// Sets whether screenshots are allowed for the page of the WebContents'
// primary main RFH. During navigations this should only be called after the
// page is ready to be committed, otherwise the state will be saved to an
// intermediate Page.
static void UpdateDataControlsScreenshotState(content::Page& page,
const std::string& identifier,
bool allow);
~DataProtectionPageUserData() override;
// This function will return a `UrlSettings` object representing a combination
// of the restrictions applied by a `RTLookupResponse` if one exists and by
// Data Controls rules.
UrlSettings settings() const;
void set_rt_lookup_response(
std::unique_ptr<safe_browsing::RTLookupResponse> rt_lookup_response) {
rt_lookup_response_ = std::move(rt_lookup_response);
}
const safe_browsing::RTLookupResponse* rt_lookup_response() {
return rt_lookup_response_.get();
}
private:
friend class content::PageUserData<DataProtectionPageUserData>;
DataProtectionPageUserData(
content::Page& page,
const std::string& identifier,
UrlSettings settings,
std::unique_ptr<safe_browsing::RTLookupResponse> rt_lookup_response);
// There are two sources for data protection settings as of this writing: data
// controls and URL filtering. data_controls_settings_, as the name suggests,
// will store data protection settings obtained from data controls. The URL
// filtering Data Protection settings are implicitly stored in
// rt_lookup_response_.
std::string identifier_;
UrlSettings data_controls_settings_;
std::unique_ptr<safe_browsing::RTLookupResponse> rt_lookup_response_;
PAGE_USER_DATA_KEY_DECL();
};
// Return the watermark string to display if present in `threat_info`. Revealed
// for testing
std::string GetWatermarkString(
const std::string& identifier,
const safe_browsing::MatchedUrlNavigationRule& rule);
} // namespace enterprise_data_protection
#endif // CHROME_BROWSER_ENTERPRISE_DATA_PROTECTION_DATA_PROTECTION_PAGE_USER_DATA_H_
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