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Malicious site protection navigation detection #3707

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Malicious site protection navigation detection #3707

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9f8ebcf
Add Detection Logic
alessandroboron Nov 29, 2024
4a753bd
Integrate MaliciousSiteProtection
alessandroboron Dec 2, 2024
c02a209
Hardcode malicious site detection
alessandroboron Dec 2, 2024
3ede0ed
Use isSpecialErrorPageRequest flag to avoid navigation loops
alessandroboron Dec 3, 2024
09a1962
Clean up due to integration with BSK
alessandroboron Dec 3, 2024
77a9db1
Add test for malicious site navigation handler
alessandroboron Dec 3, 2024
bf9930e
Disable adding redirect to examption URLs
alessandroboron Dec 3, 2024
f1ba746
Re-set bypassed threat kind at every page load
alessandroboron Dec 4, 2024
af5428a
Refactor MaliciousSiteProtectionNavigationHandler
alessandroboron Dec 9, 2024
9543384
Refactor SpecialErrorPageNavigationHandler and handle synchronisation
alessandroboron Dec 9, 2024
040565b
Fix typo for Malicious site Navigation Handler method
alessandroboron Dec 9, 2024
fe4aa82
Update the logic for handling malicious site protection
alessandroboron Dec 9, 2024
feb36be
Close Tab when leaving malicious site
alessandroboron Dec 9, 2024
160bc30
Update BSK version
alessandroboron Dec 9, 2024
b6dbf5c
Clean up
alessandroboron Dec 10, 2024
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29 changes: 23 additions & 6 deletions DuckDuckGo.xcodeproj/project.pbxproj
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -763,14 +763,15 @@
9F254ACE2CF5D3540063B308 /* SpecialErrorPageNavigationHandlerIntegrationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254ACD2CF5D3540063B308 /* SpecialErrorPageNavigationHandlerIntegrationTests.swift */; };
9F254AD22CF5D3A80063B308 /* MockSpecialErrorWebView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD12CF5D3A20063B308 /* MockSpecialErrorWebView.swift */; };
9F254AD32CF5D3A80063B308 /* MockSpecialErrorWebView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD12CF5D3A20063B308 /* MockSpecialErrorWebView.swift */; };
9F254AD52CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD42CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift */; };
9F254AD62CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD42CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift */; };
9F254AD52CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD42CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift */; };
9F254AD62CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD42CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift */; };
9F254AD82CF605310063B308 /* MockSSLErrorPageNavigationHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD72CF605310063B308 /* MockSSLErrorPageNavigationHandler.swift */; };
9F254AD92CF605310063B308 /* MockSSLErrorPageNavigationHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AD72CF605310063B308 /* MockSSLErrorPageNavigationHandler.swift */; };
9F254ADB2CF6120E0063B308 /* MockSpecialErrorPageNavigationDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254ADA2CF6120E0063B308 /* MockSpecialErrorPageNavigationDelegate.swift */; };
9F254ADC2CF6120E0063B308 /* MockSpecialErrorPageNavigationDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254ADA2CF6120E0063B308 /* MockSpecialErrorPageNavigationDelegate.swift */; };
9F254ADE2CF636CF0063B308 /* DummyWKNavigation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254ADD2CF636CF0063B308 /* DummyWKNavigation.swift */; };
9F254ADF2CF636CF0063B308 /* DummyWKNavigation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254ADD2CF636CF0063B308 /* DummyWKNavigation.swift */; };
9F254AF12CF8D5250063B308 /* MaliciousSiteProtection in Frameworks */ = {isa = PBXBuildFile; productRef = 9F254AF02CF8D5250063B308 /* MaliciousSiteProtection */; };
9F254AFF2CF9FA1B0063B308 /* WebViewNavigationHandling.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254AFE2CF9FA1B0063B308 /* WebViewNavigationHandling.swift */; };
9F254B012CF9FA8D0063B308 /* SpecialErrorPageActionHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254B002CF9FA8D0063B308 /* SpecialErrorPageActionHandler.swift */; };
9F254B032CF9FB2E0063B308 /* SpecialErrorPageNavigationDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F254B022CF9FB2E0063B308 /* SpecialErrorPageNavigationDelegate.swift */; };
Expand Down Expand Up @@ -821,6 +822,9 @@
9FB027192C26BC29009EA190 /* BrowsersComparisonModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB027182C26BC29009EA190 /* BrowsersComparisonModel.swift */; };
9FB0271B2C2927D0009EA190 /* OnboardingView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB0271A2C2927D0009EA190 /* OnboardingView.swift */; };
9FB0271D2C293619009EA190 /* OnboardingIntroViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB0271C2C293619009EA190 /* OnboardingIntroViewModel.swift */; };
9FBC76672CFE33B5008B21E7 /* MaliciousSiteProtectionNavigationHandlerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FBC76662CFE33B5008B21E7 /* MaliciousSiteProtectionNavigationHandlerTests.swift */; };
9FBC766A2CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FBC76692CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift */; };
9FBC766B2CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FBC76692CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift */; };
9FCFCD802C6AF56D006EB7A0 /* LaunchOptionsHandlerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FCFCD7F2C6AF56D006EB7A0 /* LaunchOptionsHandlerTests.swift */; };
9FCFCD812C6B020D006EB7A0 /* LaunchOptionsHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FCFCD7D2C6AF52A006EB7A0 /* LaunchOptionsHandler.swift */; };
9FCFCD852C75C91A006EB7A0 /* ProgressBarView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FCFCD842C75C91A006EB7A0 /* ProgressBarView.swift */; };
Expand Down Expand Up @@ -2626,7 +2630,7 @@
9F254ACA2CF5CDC60063B308 /* SpecialErrorPageNavigationHandlerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SpecialErrorPageNavigationHandlerTests.swift; sourceTree = "<group>"; };
9F254ACD2CF5D3540063B308 /* SpecialErrorPageNavigationHandlerIntegrationTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SpecialErrorPageNavigationHandlerIntegrationTests.swift; sourceTree = "<group>"; };
9F254AD12CF5D3A20063B308 /* MockSpecialErrorWebView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockSpecialErrorWebView.swift; sourceTree = "<group>"; };
9F254AD42CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DummyMaliciousSiteProtectionNavigationHandler.swift; sourceTree = "<group>"; };
9F254AD42CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockMaliciousSiteProtectionNavigationHandler.swift; sourceTree = "<group>"; };
9F254AD72CF605310063B308 /* MockSSLErrorPageNavigationHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockSSLErrorPageNavigationHandler.swift; sourceTree = "<group>"; };
9F254ADA2CF6120E0063B308 /* MockSpecialErrorPageNavigationDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockSpecialErrorPageNavigationDelegate.swift; sourceTree = "<group>"; };
9F254ADD2CF636CF0063B308 /* DummyWKNavigation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DummyWKNavigation.swift; sourceTree = "<group>"; };
Expand Down Expand Up @@ -2678,6 +2682,8 @@
9FB027182C26BC29009EA190 /* BrowsersComparisonModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BrowsersComparisonModel.swift; sourceTree = "<group>"; };
9FB0271A2C2927D0009EA190 /* OnboardingView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OnboardingView.swift; sourceTree = "<group>"; };
9FB0271C2C293619009EA190 /* OnboardingIntroViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OnboardingIntroViewModel.swift; sourceTree = "<group>"; };
9FBC76662CFE33B5008B21E7 /* MaliciousSiteProtectionNavigationHandlerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MaliciousSiteProtectionNavigationHandlerTests.swift; sourceTree = "<group>"; };
9FBC76692CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockMaliciousSiteProtectionManager.swift; sourceTree = "<group>"; };
9FCFCD7D2C6AF52A006EB7A0 /* LaunchOptionsHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = LaunchOptionsHandler.swift; path = ../DuckDuckGo/LaunchOptionsHandler.swift; sourceTree = "<group>"; };
9FCFCD7F2C6AF56D006EB7A0 /* LaunchOptionsHandlerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LaunchOptionsHandlerTests.swift; sourceTree = "<group>"; };
9FCFCD842C75C91A006EB7A0 /* ProgressBarView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProgressBarView.swift; sourceTree = "<group>"; };
Expand Down Expand Up @@ -3172,6 +3178,7 @@
31E69A63280F4CB600478327 /* DuckUI in Frameworks */,
CB941A6E2B96AB08000F9E7A /* PrivacyDashboard in Frameworks */,
F42D541D29DCA40B004C4FF1 /* DesignResourcesKit in Frameworks */,
9F254AF12CF8D5250063B308 /* MaliciousSiteProtection in Frameworks */,
1E5918472CA422A7008ED2B3 /* Navigation in Frameworks */,
85875B6129912A9900115F05 /* SyncUI in Frameworks */,
F4D7F634298C00C3006C3AE9 /* FindInPageIOSJSSupport in Frameworks */,
Expand Down Expand Up @@ -5037,6 +5044,7 @@
CBC88EE22C7F8B1700F0F8C5 /* SSLErrorPageNavigationHandlerTests.swift */,
9F254ACA2CF5CDC60063B308 /* SpecialErrorPageNavigationHandlerTests.swift */,
9F254ACD2CF5D3540063B308 /* SpecialErrorPageNavigationHandlerIntegrationTests.swift */,
9FBC76662CFE33B5008B21E7 /* MaliciousSiteProtectionNavigationHandlerTests.swift */,
);
path = SpecialErrorPage;
sourceTree = "<group>";
Expand All @@ -5045,10 +5053,11 @@
isa = PBXGroup;
children = (
9F254AD12CF5D3A20063B308 /* MockSpecialErrorWebView.swift */,
9F254AD42CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift */,
9F254AD42CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift */,
9F254AD72CF605310063B308 /* MockSSLErrorPageNavigationHandler.swift */,
9F254ADA2CF6120E0063B308 /* MockSpecialErrorPageNavigationDelegate.swift */,
9F254ADD2CF636CF0063B308 /* DummyWKNavigation.swift */,
9FBC76692CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift */,
);
path = TestDoubles;
sourceTree = "<group>";
Expand Down Expand Up @@ -6896,6 +6905,7 @@
9F96F73A2C9144D5009E45D5 /* Onboarding */,
1E5918462CA422A7008ED2B3 /* Navigation */,
315C77812CFA41A400699683 /* AIChat */,
9F254AF02CF8D5250063B308 /* MaliciousSiteProtection */,
);
productName = DuckDuckGo;
productReference = 84E341921E2F7EFB00BDBA6F /* DuckDuckGo.app */;
Expand Down Expand Up @@ -8379,7 +8389,7 @@
569437342BE4E41500C0881B /* SyncErrorHandlerSyncErrorsAlertsTests.swift in Sources */,
CBC88EE32C7F8B1700F0F8C5 /* SSLErrorPageNavigationHandlerTests.swift in Sources */,
85C11E4120904BBE00BFFEB4 /* VariantManagerTests.swift in Sources */,
9F254AD52CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift in Sources */,
9F254AD52CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift in Sources */,
F1134ECE1F40EA9C00B73467 /* AtbParserTests.swift in Sources */,
F189AEE41F18FDAF001EBAE1 /* LinkTests.swift in Sources */,
6F7FB8E12C660B3E00867DA7 /* NewTabPageFavoritesModelTests.swift in Sources */,
Expand Down Expand Up @@ -8419,6 +8429,7 @@
9F254ADF2CF636CF0063B308 /* DummyWKNavigation.swift in Sources */,
6F7BACD42CEE084B00F561D8 /* OmniBarEqualityCheckTests.swift in Sources */,
6F7FB8E72C66197E00867DA7 /* NewTabPageSectionsSettingsModelTests.swift in Sources */,
9FBC766A2CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift in Sources */,
851CD674244D7E6000331B98 /* UserDefaultsExtension.swift in Sources */,
569437362BE5160600C0881B /* SyncSettingsViewControllerErrorTests.swift in Sources */,
EEC02C162B065BE00045CE11 /* NetworkProtectionVPNLocationViewModelTests.swift in Sources */,
Expand Down Expand Up @@ -8492,6 +8503,7 @@
9F4CC51F2C48D758006A96EB /* ContextualDaxDialogsFactoryTests.swift in Sources */,
8521FDE6238D414B00A44CC3 /* FileStoreTests.swift in Sources */,
F14E491F1E391CE900DC037C /* URLExtensionTests.swift in Sources */,
9FBC76672CFE33B5008B21E7 /* MaliciousSiteProtectionNavigationHandlerTests.swift in Sources */,
9F23B8062C2BE22700950875 /* OnboardingIntroViewModelTests.swift in Sources */,
9F69331D2C5A191400CD6A5D /* MockTutorialSettings.swift in Sources */,
85D2187424BF25CD004373D2 /* FaviconsTests.swift in Sources */,
Expand Down Expand Up @@ -8593,8 +8605,9 @@
isa = PBXSourcesBuildPhase;
buildActionMask = 2147483647;
files = (
9F254AD62CF5E5B10063B308 /* DummyMaliciousSiteProtectionNavigationHandler.swift in Sources */,
9F254AD62CF5E5B10063B308 /* MockMaliciousSiteProtectionNavigationHandler.swift in Sources */,
85F21DB0210F5E32002631A6 /* AtbIntegrationTests.swift in Sources */,
9FBC766B2CFE3802008B21E7 /* MockMaliciousSiteProtectionManager.swift in Sources */,
9F254AD22CF5D3A80063B308 /* MockSpecialErrorWebView.swift in Sources */,
9F254ADE2CF636CF0063B308 /* DummyWKNavigation.swift in Sources */,
8551912724746EDC0010FDD0 /* SnapshotHelper.swift in Sources */,
Expand Down Expand Up @@ -11965,6 +11978,10 @@
package = 98A16C2928A11BDE00A6C003 /* XCRemoteSwiftPackageReference "BrowserServicesKit" */;
productName = Bookmarks;
};
9F254AF02CF8D5250063B308 /* MaliciousSiteProtection */ = {
isa = XCSwiftPackageProductDependency;
productName = MaliciousSiteProtection;
};
9F8FE9482BAE50E50071E372 /* Lottie */ = {
isa = XCSwiftPackageProductDependency;
package = 9F8FE9472BAE50E50071E372 /* XCRemoteSwiftPackageReference "lottie-spm" */;
Expand Down
34 changes: 8 additions & 26 deletions DuckDuckGo/MaliciousSiteProtection/MaliciousSiteProtectionManager.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -18,38 +18,20 @@
//

import Foundation
import MaliciousSiteProtection

final class MaliciousSiteProtectionManager: MaliciousSiteDetecting {

func evaluate(_ url: URL) async -> ThreatKind? {
try? await Task.sleep(interval: 0.3)
return .none
}

}

// MARK: - To Remove

// These entities are copied from BSK and they will be used to mock the library
import SpecialErrorPages

protocol MaliciousSiteDetecting {
func evaluate(_ url: URL) async -> ThreatKind?
}

public enum ThreatKind: String, CaseIterable, CustomStringConvertible {
public var description: String { rawValue }

case phishing
case malware
}

public extension ThreatKind {

var errorPageType: SpecialErrorKind {
switch self {
case .malware: .phishing // WIP in BSK
case .phishing: .phishing
switch url.absoluteString {
case "http://privacy-test-pages.site/security/badware/phishing.html":
return .phishing
case "http://privacy-test-pages.site/security/badware/malware.html":
return .malware
default:
return .none
}
}

Expand Down
6 changes: 6 additions & 0 deletions DuckDuckGo/SpecialErrorPage/Model/SpecialErrorModel.swift
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Expand Up @@ -19,6 +19,7 @@

import Foundation
import SpecialErrorPages
import WebKit

struct SpecialErrorModel: Equatable {
let url: URL
Expand All @@ -29,3 +30,8 @@ struct SSLSpecialError {
let type: SSLErrorType
let error: SpecialErrorModel
}

struct MaliciousSiteDetectionNavigationResponse: Equatable {
let navigationAction: WKNavigationAction
let errorData: SpecialErrorData
}
6 changes: 5 additions & 1 deletion DuckDuckGo/SpecialErrorPage/SpecialErrorPageInterfaces/SpecialErrorPageActionHandler.swift
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Expand Up @@ -18,6 +18,7 @@
//

import Foundation
import SpecialErrorPages

/// A type that defines actions for handling special error pages.
///
Expand All @@ -26,11 +27,14 @@ import Foundation
/// advanced information related to the error.
protocol SpecialErrorPageActionHandler {
/// Handles the action of navigating to the site associated with the error page
func visitSite()
@MainActor
func visitSite(url: URL, errorData: SpecialErrorData)
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I’m a bit on the fence with this.
The idea was to have a generic protocol that all the sub-special error handlers should conform to.
For MaliciousSiteProtectionNavigationHandler I need to pass the URL and SpecialErrorData but I don’t need them for the SSL handler. So I feel I’m violating the Interface Segregation principle. what do you think?


/// Handles the action of leaving the site associated with the error page
@MainActor
func leaveSite()

/// Handles the action of requesting more detailed information about the error
@MainActor
func advancedInfoPresented()
}
3 changes: 3 additions & 0 deletions DuckDuckGo/SpecialErrorPage/SpecialErrorPageInterfaces/SpecialErrorPageContextHandling.swift
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Expand Up @@ -32,6 +32,9 @@ protocol SpecialErrorPageContextHandling: AnyObject {
/// The URL that failed to load, if any.
var failedURL: URL? { get }

/// A boolean value indicating whether the WebView request requires showing a special error page.
var isSpecialErrorPageRequest: Bool { get }

/// Attaches a web view to the special error page handling.
func attachWebView(_ webView: WKWebView)

Expand Down
16 changes: 14 additions & 2 deletions DuckDuckGo/SpecialErrorPage/SpecialErrorPageInterfaces/WebViewNavigationHandling.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@

import Foundation
import WebKit
import MaliciousSiteProtection

// MARK: - WebViewNavigation

Expand All @@ -41,15 +42,24 @@ protocol WebViewNavigationHandling: AnyObject {
/// - Parameters:
/// - navigationAction: Details about the action that triggered the navigation request.
/// - webView: The web view from which the navigation request began.
/// - Returns: A Boolean value that indicates whether the navigation action was handled.
func handleSpecialErrorNavigation(navigationAction: WKNavigationAction, webView: WKWebView) async -> Bool
@MainActor
func handleDecidePolicyFor(navigationAction: WKNavigationAction, webView: WKWebView)

/// Decides whether to to navigate to new content after the response to the navigation request is known or cancel the navigation and show a special error page based on the specified action information.
/// - Parameters:
/// - navigationResponse: Descriptive information about the navigation response.
/// - webView: The web view from which the navigation request began.
/// - Returns: A Boolean value that indicates whether to cancel or allow the navigation.
@MainActor
func handleDecidePolicyfor(navigationResponse: WKNavigationResponse, webView: WKWebView) async -> Bool

/// Handles authentication challenges received by the web view.
///
/// - Parameters:
/// - webView: The web view that receives the authentication challenge.
/// - challenge: The authentication challenge.
/// - completionHandler: A completion handler block to execute with the response.
@MainActor
func handleWebView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void)

/// Handles failures during provisional navigation.
Expand All @@ -58,12 +68,14 @@ protocol WebViewNavigationHandling: AnyObject {
/// - webView: The `WKWebView` instance that failed the navigation.
/// - navigation: The navigation object for the operation.
/// - error: The error that occurred.
@MainActor
func handleWebView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WebViewNavigation, withError error: NSError)

/// Handles the successful completion of a navigation in the web view.
///
/// - Parameters:
/// - webView: The web view that loaded the content.
/// - navigation: The navigation object that finished.
@MainActor
func handleWebView(_ webView: WKWebView, didFinish navigation: WebViewNavigation)
}
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