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Add domain blocking "Proceed" and "Go Back" actions
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73 changes: 73 additions & 0 deletions
73
...tent/UserScripts/Scripts_Dynamic/ScriptHandlers/Internal/BlockedDomainScriptHandler.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| // Copyright 2023 The Brave Authors. All rights reserved. | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
|
|
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| import Foundation | ||
| import Shared | ||
| import WebKit | ||
|
|
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| class BlockedDomainScriptHandler: TabContentScript { | ||
| private weak var tab: Tab? | ||
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| required init(tab: Tab) { | ||
| self.tab = tab | ||
| } | ||
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| static let scriptName = "BlockedDomainScript" | ||
| static let scriptId = UUID().uuidString | ||
| static let messageHandlerName = "\(scriptName)_\(messageUUID)" | ||
| static let scriptSandbox: WKContentWorld = .page | ||
| static let userScript: WKUserScript? = nil | ||
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| func userContentController(_ userContentController: WKUserContentController, didReceiveScriptMessage message: WKScriptMessage, replyHandler: (Any?, String?) -> Void) { | ||
| defer { replyHandler(nil, nil) } | ||
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| if !verifyMessage(message: message, securityToken: UserScriptManager.securityToken) { | ||
| assertionFailure("Missing required security token.") | ||
| return | ||
| } | ||
|
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| guard let params = message.body as? [String: AnyObject], let action = params["action"] as? String else { | ||
| assertionFailure("Missing required params.") | ||
| return | ||
| } | ||
|
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| switch action { | ||
| case "didProceed": | ||
| blockedDomainDidProceed() | ||
| case "didGoBack": | ||
| blockedDomainDidGoBack() | ||
| default: | ||
| assertionFailure("Unhandled action `\(action)`") | ||
| } | ||
| } | ||
|
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| private func blockedDomainDidProceed() { | ||
| guard let url = tab?.url?.stippedInternalURL, let etldP1 = url.baseDomain else { | ||
| assertionFailure("There should be no way this method can be triggered if the tab is not on an internal url") | ||
| return | ||
| } | ||
|
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| let request = URLRequest(url: url) | ||
| tab?.proceedAnywaysDomainList.insert(etldP1) | ||
| tab?.loadRequest(request) | ||
| } | ||
|
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| private func blockedDomainDidGoBack() { | ||
| guard let url = tab?.url?.stippedInternalURL else { | ||
| assertionFailure("There should be no way this method can be triggered if the tab is not on an internal url") | ||
| return | ||
| } | ||
|
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| guard let listItem = tab?.backList?.reversed().first(where: { $0.url != url }) else { | ||
| // How is this even possible? | ||
| // All testing indicates no, so we will not handle. | ||
| // If we find it is, then we need to disable or hide the "Go Back" button in these cases. | ||
| // But this would require heavy changes or ugly mechanisms to InternalSchemeHandler. | ||
| return | ||
| } | ||
|
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| tab?.goToBackForwardListItem(listItem) | ||
| } | ||
| } |
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