My question is simple, I do not have much experience in writing swift code, I am only doing it to create a small executable that I can call from my python application which completes Subcription Management.
I was hoping someone with more experience could point out my flaws along with giving me tips on how to verify that the check is working for my applicaiton. Any inight is appreciated, thank you.
import Foundation
import StoreKit
class SubscriptionValidator {
static func getReceiptURL() -> URL? {
guard let appStoreReceiptURL = Bundle.main.appStoreReceiptURL else {
print("No receipt found.")
return nil
}
return appStoreReceiptURL
}
static func validateReceipt() -> Bool {
guard let receiptURL = getReceiptURL(),
let receiptData = try? Data(contentsOf: receiptURL) else {
print("Could not read receipt.")
return false
}
let receiptString = receiptData.base64EncodedString()
let validationResult = sendReceiptToApple(receiptString: receiptString)
return validationResult
}
static func sendReceiptToApple(receiptString: String) -> Bool {
let isSandbox = Bundle.main.appStoreReceiptURL?.lastPathComponent == "sandboxReceipt"
let urlString = isSandbox ? "https://sandbox.itunes.apple.com/verifyReceipt" : "https://buy.itunes.apple.com/verifyReceipt"
let url = URL(string: urlString)!
let requestData: [String: Any] = [
"receipt-data": receiptString,
"password": "0b7f88907b77443997838c72be52f5fc"
]
guard let requestBody = try? JSONSerialization.data(withJSONObject: requestData) else {
print("Error creating request body.")
return false
}
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = requestBody
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
let semaphore = DispatchSemaphore(value: 0)
var isValid = false
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil,
let jsonResponse = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
let status = jsonResponse["status"] as? Int else {
print("Receipt validation failed.")
semaphore.signal()
return
}
if status == 0, let receipt = jsonResponse["receipt"] as? [String: Any],
let inApp = receipt["in_app"] as? [[String: Any]] {
for purchase in inApp {
if let expiresDateMS = purchase["expires_date_ms"] as? String,
let expiresDate = Double(expiresDateMS) {
let expiryDate = Date(timeIntervalSince1970: expiresDate / 1000.0)
if expiryDate > Date() {
isValid = true
}
}
}
}
semaphore.signal()
}
task.resume()
semaphore.wait()
return isValid
}
}
