wireguard-apple/WireGuard/Shared/NETunnelProviderProtocol+Ex...

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// SPDX-License-Identifier: MIT
// Copyright © 2018 WireGuard LLC. All Rights Reserved.
import NetworkExtension
extension NETunnelProviderProtocol {
convenience init?(tunnelConfiguration: TunnelConfiguration, isActivateOnDemandEnabled: Bool) {
assert(!tunnelConfiguration.interface.name.isEmpty)
guard let serializedTunnelConfiguration = try? JSONEncoder().encode(tunnelConfiguration) else { return nil }
self.init()
let appId = Bundle.main.bundleIdentifier!
providerBundleIdentifier = "\(appId).network-extension"
providerConfiguration = [
"tunnelConfiguration": serializedTunnelConfiguration,
"tunnelConfigurationVersion": 1,
"isActivateOnDemandEnabled": isActivateOnDemandEnabled
]
let endpoints = tunnelConfiguration.peers.compactMap {$0.endpoint}
if endpoints.count == 1 {
serverAddress = endpoints.first!.stringRepresentation()
} else if endpoints.isEmpty {
serverAddress = "Unspecified"
} else {
serverAddress = "Multiple endpoints"
}
username = tunnelConfiguration.interface.name
}
func tunnelConfiguration() -> TunnelConfiguration? {
guard let serializedTunnelConfiguration = providerConfiguration?["tunnelConfiguration"] as? Data else { return nil }
return try? JSONDecoder().decode(TunnelConfiguration.self, from: serializedTunnelConfiguration)
}
var isActivateOnDemandEnabled: Bool {
return (providerConfiguration?["isActivateOnDemandEnabled"] as? Bool) ?? false
}
func hasTunnelConfiguration(tunnelConfiguration otherTunnelConfiguration: TunnelConfiguration) -> Bool {
guard let serializedThisTunnelConfiguration = providerConfiguration?["tunnelConfiguration"] as? Data else { return false }
guard let serializedOtherTunnelConfiguration = try? JSONEncoder().encode(otherTunnelConfiguration) else { return false }
return serializedThisTunnelConfiguration == serializedOtherTunnelConfiguration
}
}