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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // | ||
| // KnownFailure.swift | ||
| // | ||
| // Copyright © 2024 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Foundation | ||
|
|
||
| @objc | ||
| final public class KnownFailure: NSObject, Codable { | ||
| public let domain: String | ||
| public let code: Int | ||
| public let localizedDescription: String | ||
|
|
||
| public init?(_ error: Error?) { | ||
| guard let nsError = error as? NSError else { return nil } | ||
|
|
||
| domain = nsError.domain | ||
| code = nsError.code | ||
| localizedDescription = nsError.localizedDescription | ||
| } | ||
|
|
||
| public override var description: String { | ||
| "Error domain=\(domain) code=\(code)\n\(localizedDescription)" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| // | ||
| // KnownFailureObserver.swift | ||
| // | ||
| // Copyright © 2024 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Combine | ||
| import Foundation | ||
| import NetworkExtension | ||
|
|
||
| public protocol KnownFailureObserver { | ||
| var publisher: AnyPublisher<KnownFailure?, Never> { get } | ||
| var recentValue: KnownFailure? { get } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| // | ||
| // KnownFailureObserver.swift | ||
| // | ||
| // Copyright © 2024 DuckDuckGo. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| import Combine | ||
| import Foundation | ||
| import NetworkExtension | ||
| import NotificationCenter | ||
|
|
||
| public class KnownFailureObserverThroughDistributedNotifications: KnownFailureObserver { | ||
| public lazy var publisher = subject.eraseToAnyPublisher() | ||
| public var recentValue: KnownFailure? { | ||
| subject.value | ||
| } | ||
|
|
||
| private let subject = CurrentValueSubject<KnownFailure?, Never>(nil) | ||
|
|
||
| private let distributedNotificationCenter: DistributedNotificationCenter | ||
| private var cancellable: AnyCancellable? | ||
|
|
||
| public init(distributedNotificationCenter: DistributedNotificationCenter = .default()) { | ||
| self.distributedNotificationCenter = distributedNotificationCenter | ||
|
|
||
| start() | ||
| } | ||
|
|
||
| private func start() { | ||
| cancellable = distributedNotificationCenter.publisher(for: .knownFailureUpdated).sink { [weak self] notification in | ||
| self?.handleKnownFailureUpdated(notification) | ||
| } | ||
| } | ||
|
|
||
| private func handleKnownFailureUpdated(_ notification: Notification) { | ||
| if let object = notification.object as? String, | ||
| let data = object.data(using: .utf8), | ||
| let failure = try? JSONDecoder().decode(KnownFailure.self, from: data) { | ||
| subject.send(failure) | ||
| } else { | ||
| subject.send(nil) | ||
| } | ||
| } | ||
| } | ||
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