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// SPDX-License-Identifier: MIT
// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
import NetworkExtension
enum TunnelsManagerError: WireGuardAppError {
case tunnelNameEmpty
case tunnelAlreadyExistsWithThatName
case systemErrorOnListingTunnels(systemError: Error)
case systemErrorOnAddTunnel(systemError: Error)
case systemErrorOnModifyTunnel(systemError: Error)
case systemErrorOnRemoveTunnel(systemError: Error)
var alertText: AlertText {
switch self {
case .tunnelNameEmpty:
return (tr("alertTunnelNameEmptyTitle"), tr("alertTunnelNameEmptyMessage"))
case .tunnelAlreadyExistsWithThatName:
return (tr("alertTunnelAlreadyExistsWithThatNameTitle"), tr("alertTunnelAlreadyExistsWithThatNameMessage"))
case .systemErrorOnListingTunnels(let systemError):
return (tr("alertSystemErrorOnListingTunnelsTitle"), systemError.localizedUIString)
case .systemErrorOnAddTunnel(let systemError):
return (tr("alertSystemErrorOnAddTunnelTitle"), systemError.localizedUIString)
case .systemErrorOnModifyTunnel(let systemError):
return (tr("alertSystemErrorOnModifyTunnelTitle"), systemError.localizedUIString)
case .systemErrorOnRemoveTunnel(let systemError):
return (tr("alertSystemErrorOnRemoveTunnelTitle"), systemError.localizedUIString)
}
}
}
enum TunnelsManagerActivationAttemptError: WireGuardAppError {
case tunnelIsNotInactive
case failedWhileStarting(systemError: Error) // startTunnel() throwed
case failedWhileSaving(systemError: Error) // save config after re-enabling throwed
case failedWhileLoading(systemError: Error) // reloading config throwed
case failedBecauseOfTooManyErrors(lastSystemError: Error) // recursion limit reached
var alertText: AlertText {
switch self {
case .tunnelIsNotInactive:
return (tr("alertTunnelActivationErrorTunnelIsNotInactiveTitle"), tr("alertTunnelActivationErrorTunnelIsNotInactiveMessage"))
case .failedWhileStarting(let systemError),
.failedWhileSaving(let systemError),
.failedWhileLoading(let systemError),
.failedBecauseOfTooManyErrors(let systemError):
return (tr("alertTunnelActivationSystemErrorTitle"),
tr(format: "alertTunnelActivationSystemErrorMessage (%@)", systemError.localizedUIString))
}
}
}
enum TunnelsManagerActivationError: WireGuardAppError {
case activationFailed(wasOnDemandEnabled: Bool)
case activationFailedWithExtensionError(title: String, message: String, wasOnDemandEnabled: Bool)
var alertText: AlertText {
switch self {
case .activationFailed(let wasOnDemandEnabled):
return (tr("alertTunnelActivationFailureTitle"), tr("alertTunnelActivationFailureMessage") + (wasOnDemandEnabled ? tr("alertTunnelActivationFailureOnDemandAddendum") : ""))
case .activationFailedWithExtensionError(let title, let message, let wasOnDemandEnabled):
return (title, message + (wasOnDemandEnabled ? tr("alertTunnelActivationFailureOnDemandAddendum") : ""))
}
}
}
extension PacketTunnelProviderError: WireGuardAppError {
var alertText: AlertText {
switch self {
case .savedProtocolConfigurationIsInvalid:
return (tr("alertTunnelActivationFailureTitle"), tr("alertTunnelActivationSavedConfigFailureMessage"))
case .dnsResolutionFailure:
return (tr("alertTunnelDNSFailureTitle"), tr("alertTunnelDNSFailureMessage"))
case .couldNotStartBackend:
return (tr("alertTunnelActivationFailureTitle"), tr("alertTunnelActivationBackendFailureMessage"))
case .couldNotDetermineFileDescriptor:
return (tr("alertTunnelActivationFailureTitle"), tr("alertTunnelActivationFileDescriptorFailureMessage"))
case .couldNotSetNetworkSettings:
return (tr("alertTunnelActivationFailureTitle"), tr("alertTunnelActivationSetNetworkSettingsMessage"))
}
}
}
extension Error {
var localizedUIString: String {
if let systemError = self as? NEVPNError {
switch systemError {
case NEVPNError.configurationInvalid:
return tr("alertSystemErrorMessageTunnelConfigurationInvalid")
case NEVPNError.configurationDisabled:
return tr("alertSystemErrorMessageTunnelConfigurationDisabled")
case NEVPNError.connectionFailed:
return tr("alertSystemErrorMessageTunnelConnectionFailed")
case NEVPNError.configurationStale:
return tr("alertSystemErrorMessageTunnelConfigurationStale")
case NEVPNError.configurationReadWriteFailed:
return tr("alertSystemErrorMessageTunnelConfigurationReadWriteFailed")
case NEVPNError.configurationUnknown:
return tr("alertSystemErrorMessageTunnelConfigurationUnknown")
default:
return ""
}
} else {
return localizedDescription
}
}
}
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