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//
// DisplayChainedError.swift
// MullvadVPN
//
// Created by pronebird on 04/06/2020.
// Copyright © 2020 Mullvad VPN AB. All rights reserved.
//
import Foundation
import StoreKit
protocol DisplayChainedError {
var errorChainDescription: String? { get }
}
extension REST.Error: DisplayChainedError {
var errorChainDescription: String? {
switch self {
case .network(let urlError):
return String(
format: NSLocalizedString(
"NETWORK_ERROR",
tableName: "REST",
value: "Network error: %@",
comment: ""
),
urlError.localizedDescription
)
case .unhandledResponse(let statusCode, let serverResponse):
return String(
format: NSLocalizedString(
"SERVER_ERROR",
tableName: "REST",
value: "Unexpected server response: %1$@ (HTTP status: %2$d)",
comment: ""
),
serverResponse?.code.rawValue ?? "(no code)",
statusCode
)
case .createURLRequest:
return NSLocalizedString(
"SERVER_REQUEST_ENCODING_ERROR",
tableName: "REST",
value: "Failure to create URL request",
comment: ""
)
case .decodeResponse:
return NSLocalizedString(
"SERVER_SUCCESS_RESPONSE_DECODING_ERROR",
tableName: "REST",
value: "Server response decoding error",
comment: ""
)
}
}
}
extension TunnelManager.Error: DisplayChainedError {
var errorChainDescription: String? {
switch self {
case .loadAllVPNConfigurations(let systemError):
return String(
format: NSLocalizedString(
"LOAD_ALL_VPN_CONFIGURATIONS_ERROR",
tableName: "TunnelManager",
value: "Failed to load system VPN configurations: %@",
comment: ""
),
systemError.localizedDescription
)
case .reloadVPNConfiguration(let systemError):
return String(
format: NSLocalizedString(
"RELOAD_VPN_CONFIGURATIONS_ERROR",
tableName: "TunnelManager",
value: "Failed to reload a VPN configuration: %@",
comment: ""
),
systemError.localizedDescription
)
case .saveVPNConfiguration(let systemError):
return String(
format: NSLocalizedString(
"SAVE_VPN_CONFIGURATION_ERROR",
tableName: "TunnelManager",
value: "Failed to save a VPN tunnel configuration: %@",
comment: ""
),
systemError.localizedDescription
)
case .startVPNTunnel(let systemError):
return String(
format: NSLocalizedString(
"START_VPN_TUNNEL_ERROR",
tableName: "TunnelManager",
value: "System error when starting the VPN tunnel: %@",
comment: ""
),
systemError.localizedDescription
)
case .removeVPNConfiguration(let systemError):
return String(
format: NSLocalizedString(
"REMOVE_VPN_CONFIGURATION_ERROR",
tableName: "TunnelManager",
value: "Failed to remove the system VPN configuration: %@",
comment: ""
),
systemError.localizedDescription
)
case .readSettings:
return NSLocalizedString(
"READ_TUNNEL_SETTINGS_ERROR",
tableName: "TunnelManager",
value: "Failed to read settings",
comment: ""
)
case .writeSettings:
return NSLocalizedString(
"WRITE_TUNNEL_SETTINGS_ERROR",
tableName: "TunnelManager",
value: "Failed to write settings",
comment: ""
)
case .deleteSettings:
return NSLocalizedString(
"DELETE_TUNNEL_SETTINGS_ERROR",
tableName: "TunnelManager",
value: "Failed to delete settings",
comment: ""
)
case .deleteDevice(let restError):
return String(
format: NSLocalizedString(
"DELETE_DEVICE_ERROR",
tableName: "TunnelManager",
value: "Failed to create a device: %@",
comment: ""
),
restError.errorChainDescription ?? ""
)
case .getDevice(let restError):
return String(
format: NSLocalizedString(
"CREATE_DEVICE_ERROR",
tableName: "TunnelManager",
value: "Failed to obtain device data: %@",
comment: ""
),
restError.errorChainDescription ?? ""
)
case .deviceRevoked:
return NSLocalizedString(
"DEVICE_REVOKED_ERROR",
tableName: "TunnelManager",
value: "Device is revoked.",
comment: ""
)
case .createDevice(let restError):
return String(
format: NSLocalizedString(
"CREATE_DEVICE_ERROR",
tableName: "TunnelManager",
value: "Failed to create a device: %@",
comment: ""
),
restError.errorChainDescription ?? ""
)
case .rotateKey(let restError):
return String(
format: NSLocalizedString(
"ROTATE_KEY_ERROR",
tableName: "TunnelManager",
value: "Failed to rotate WireGuard key: %@",
comment: ""
),
restError.errorChainDescription ?? ""
)
case .unsetAccount:
return NSLocalizedString(
"UNSET_ACCOUNT_ERROR",
tableName: "TunnelManager",
value: "Internal error: account is unset",
comment: ""
)
case .unsetTunnel:
return NSLocalizedString(
"UNSET_TUNNEL_ERROR",
tableName: "TunnelManager",
value: "Tunnel is unset.",
comment: ""
)
case .readRelays:
return NSLocalizedString(
"READ_RELAYS_ERROR",
tableName: "TunnelManager",
value: "Failed to read relays.",
comment: ""
)
case .cannotSatisfyRelayConstraints:
return NSLocalizedString(
"CANNOT_SATISFY_RELAY_CONSTRAINTS_ERROR",
tableName: "TunnelManager",
value: "Failed to satisfy relay constraints.",
comment: ""
)
case .reloadTunnel(let error):
return String(
format: NSLocalizedString(
"RELOAD_TUNNEL_ERROR",
tableName: "TunnelManager",
value: "Failed to reload tunnel: %@",
comment: ""
),
error.localizedDescription
)
case .getAccountData(let restError):
return String(
format: NSLocalizedString(
"GET_ACCOUNT_DATA_ERROR",
tableName: "TunnelManager",
value: "Failed to obtain account data: %@",
comment: ""
),
restError.errorChainDescription ?? ""
)
case .createAccount(let restError):
return String(
format: NSLocalizedString(
"CREATE_ACCOUNT_ERROR",
tableName: "TunnelManager",
value: "Failed to create new account: %@",
comment: ""
),
restError.errorChainDescription ?? ""
)
}
}
}
extension SKError: LocalizedError {
public var errorDescription: String? {
switch self.code {
case .unknown:
return NSLocalizedString(
"UNKNOWN_ERROR",
tableName: "StoreKitErrors",
value: "Unknown error.",
comment: ""
)
case .clientInvalid:
return NSLocalizedString(
"CLIENT_INVALID",
tableName: "StoreKitErrors",
value: "Client is not allowed to issue the request.",
comment: ""
)
case .paymentCancelled:
return NSLocalizedString(
"PAYMENT_CANCELLED",
tableName: "StoreKitErrors",
value: "User cancelled the request.",
comment: ""
)
case .paymentInvalid:
return NSLocalizedString(
"PAYMENT_INVALID",
tableName: "StoreKitErrors",
value: "Invalid purchase identifier.",
comment: ""
)
case .paymentNotAllowed:
return NSLocalizedString(
"PAYMENT_NOT_ALLOWED",
tableName: "StoreKitErrors",
value: "This device is not allowed to make the payment.",
comment: ""
)
default:
return self.localizedDescription
}
}
}
extension AppStorePaymentManager.Error: DisplayChainedError {
var errorChainDescription: String? {
switch self {
case .noAccountSet:
return NSLocalizedString(
"NO_ACCOUNT_SET_ERROR",
tableName: "AppStorePaymentManager",
value: "Internal error: account is not set.",
comment: ""
)
case .validateAccount(let restError):
let reason = restError.errorChainDescription ?? ""
if case .unhandledResponse(_, let serverErrorResponse) = restError,
serverErrorResponse?.code == .invalidAccount
{
return String(
format: NSLocalizedString(
"INVALID_ACCOUNT_ERROR",
tableName: "AppStorePaymentManager",
value: "Cannot add credit to invalid account.",
comment: ""
), reason
)
} else {
let reason = restError.errorChainDescription ?? ""
return String(
format: NSLocalizedString(
"VALIDATE_ACCOUNT_ERROR",
tableName: "AppStorePaymentManager",
value: "Failed to validate account token: %@",
comment: ""
), reason
)
}
case .readReceipt(let readReceiptError):
switch readReceiptError {
case .refresh(let storeError):
let skErrorMessage = (storeError as? SKError)?.errorDescription ?? storeError.localizedDescription
return String(
format: NSLocalizedString(
"REFRESH_RECEIPT_ERROR",
tableName: "AppStorePaymentManager",
value: "Cannot refresh the AppStore receipt: %@",
comment: ""
),
skErrorMessage
)
case .io(let ioError):
return String(
format: NSLocalizedString(
"READ_RECEIPT_ERROR",
tableName: "AppStorePaymentManager",
value: "Cannot read the AppStore receipt from disk: %@",
comment: ""
),
ioError.localizedDescription
)
case .doesNotExist:
return NSLocalizedString(
"RECEIPT_NOT_FOUND_ERROR",
tableName: "AppStorePaymentManager",
value: "AppStore receipt is not found on disk.",
comment: ""
)
}
case .sendReceipt(let restError):
let reason = restError.errorChainDescription ?? ""
let errorFormat = NSLocalizedString(
"SEND_RECEIPT_ERROR",
tableName: "AppStorePaymentManager",
value: "Failed to send the receipt to server: %@",
comment: ""
)
let recoverySuggestion = NSLocalizedString(
"SEND_RECEIPT_RECOVERY_SUGGESTION",
tableName: "AppStorePaymentManager",
value: "Please retry by using the \"Restore purchases\" button.",
comment: ""
)
var errorString = String(format: errorFormat, reason)
errorString.append("\n\n")
errorString.append(recoverySuggestion)
return errorString
case .storePayment(let storeError):
return (storeError as? SKError)?.errorDescription ?? storeError.localizedDescription
}
}
}
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