passepartout-apple/Passepartout/App/Domain/StoreKitReceiptReader.swift

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//
// StoreKitReceiptReader.swift
// Passepartout
//
// Created by Davide De Rosa on 12/20/23.
// Copyright (c) 2023 Davide De Rosa. All rights reserved.
//
// https://github.com/passepartoutvpn
//
// This file is part of Passepartout.
//
// Passepartout is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Passepartout is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
import Kvitto
import PassepartoutLibrary
struct StoreKitReceiptReader: ReceiptReader {
func receipt(for appType: AppType) -> InAppReceipt? {
guard let url = Bundle.main.appStoreReceiptURL else {
pp_log.warning("No App Store receipt found!")
return nil
}
let receipt = Receipt(contentsOfURL: url)
let fallbackReceipt: Receipt? = {
// in TestFlight, attempt fallback to existing release receipt
if appType == .beta {
guard let receipt else {
let releaseUrl = url.deletingLastPathComponent().appendingPathComponent("receipt")
guard releaseUrl != url else {
assertionFailure("How can release URL be equal to sandbox URL in TestFlight?")
return nil
}
pp_log.warning("Sandbox receipt not found, falling back to Release receipt")
return Receipt(contentsOfURL: releaseUrl)
}
return receipt
}
return receipt
}()
return fallbackReceipt?.asInAppReceipt
}
}
private extension Receipt {
var asInAppReceipt: InAppReceipt {
var originalBuildNumber: Int?
var purchaseReceipts: [InAppReceipt.PurchaseReceipt]?
if let originalAppVersion, let buildNumber = Int(originalAppVersion) {
originalBuildNumber = buildNumber
}
if let inAppPurchaseReceipts {
purchaseReceipts = inAppPurchaseReceipts
.map {
InAppReceipt.PurchaseReceipt(productIdentifier: $0.productIdentifier,
cancellationDate: $0.cancellationDate,
originalPurchaseDate: $0.originalPurchaseDate)
}
}
return InAppReceipt(originalBuildNumber: originalBuildNumber,
purchaseReceipts: purchaseReceipts)
}
}