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// SPDX-License-Identifier: MIT
// Copyright © 2018 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 ("No name provided", "Cannot create tunnel with an empty name")
case .tunnelAlreadyExistsWithThatName:
return ("Name already exists", "A tunnel with that name already exists")
case .systemErrorOnListingTunnels(let systemError):
return ("Unable to list tunnels", systemError.UIString)
case .systemErrorOnAddTunnel(let systemError):
return ("Unable to create tunnel", systemError.UIString)
case .systemErrorOnModifyTunnel(let systemError):
return ("Unable to modify tunnel", systemError.UIString)
case .systemErrorOnRemoveTunnel(let systemError):
return ("Unable to remove tunnel", systemError.UIString)
}
}
}
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 ("Activation failure", "The tunnel is already active or in the process of being activated")
case .failedWhileStarting(let systemError),
.failedWhileSaving(let systemError),
.failedWhileLoading(let systemError),
.failedBecauseOfTooManyErrors(let systemError):
return ("Activation failure", "The tunnel could not be activated. " + systemError.UIString)
}
}
}
enum TunnelsManagerActivationError: WireGuardAppError {
case activationFailed
case activationFailedWithExtensionError(title: String, message: String)
var alertText: AlertText {
switch self {
case .activationFailed:
return ("Activation failure", "The tunnel could not be activated. Please ensure that you are connected to the Internet.")
case .activationFailedWithExtensionError(let title, let message):
return (title, message)
}
}
}
extension Error {
var UIString: String {
if let systemError = self as? NEVPNError {
switch systemError {
case NEVPNError.configurationInvalid:
return "The configuration is invalid."
case NEVPNError.configurationDisabled:
return "The configuration is disabled."
case NEVPNError.connectionFailed:
return "The connection failed."
case NEVPNError.configurationStale:
return "The configuration is stale."
case NEVPNError.configurationReadWriteFailed:
return "Reading or writing the configuration failed."
case NEVPNError.configurationUnknown:
return "Unknown system error."
default:
return ""
}
} else {
return localizedDescription
}
}
}
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