passepartout-apple/Passepartout/Sources/Services/InfrastructurePreset.swift

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2018-10-11 07:13:19 +00:00
//
// InfrastructurePreset.swift
// Passepartout
//
// Created by Davide De Rosa on 8/30/18.
// Copyright (c) 2018 Davide De Rosa. All rights reserved.
//
// https://github.com/keeshux
//
// This file is part of Passepartout.
//
// Passepartout is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Passepartout is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
import TunnelKit
// supports a subset of TunnelKitProvider.Configuration
// ignores new JSON keys
struct InfrastructurePreset: Codable {
enum PresetKeys: String, CodingKey {
case id
case name
case comment
case configuration = "cfg"
}
enum ConfigurationKeys: String, CodingKey {
case endpointProtocols = "ep"
case cipher
case digest = "auth"
case ca
case clientCertificate = "client"
case clientKey = "key"
case compressionFraming = "frame"
case keepAliveSeconds = "ping"
case renegotiatesAfterSeconds = "reneg"
}
let id: String
let name: String
let comment: String
let configuration: TunnelKitProvider.Configuration
func hasProtocol(_ proto: TunnelKitProvider.EndpointProtocol) -> Bool {
return configuration.endpointProtocols.index(of: proto) != nil
}
// MARK: Codable
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: PresetKeys.self)
id = try container.decode(String.self, forKey: .id)
name = try container.decode(String.self, forKey: .name)
comment = try container.decode(String.self, forKey: .comment)
let cfgContainer = try container.nestedContainer(keyedBy: ConfigurationKeys.self, forKey: .configuration)
let ca = try cfgContainer.decode(CryptoContainer.self, forKey: .ca)
var builder = TunnelKitProvider.ConfigurationBuilder(ca: ca)
builder.endpointProtocols = try cfgContainer.decode([TunnelKitProvider.EndpointProtocol].self, forKey: .endpointProtocols)
builder.cipher = try cfgContainer.decode(SessionProxy.Cipher.self, forKey: .cipher)
if let digest = try cfgContainer.decodeIfPresent(SessionProxy.Digest.self, forKey: .digest) {
builder.digest = digest
}
builder.clientCertificate = try cfgContainer.decodeIfPresent(CryptoContainer.self, forKey: .clientCertificate)
builder.clientKey = try cfgContainer.decodeIfPresent(CryptoContainer.self, forKey: .clientKey)
builder.compressionFraming = try cfgContainer.decode(SessionProxy.CompressionFraming.self, forKey: .compressionFraming)
builder.keepAliveSeconds = try cfgContainer.decodeIfPresent(Int.self, forKey: .keepAliveSeconds)
builder.renegotiatesAfterSeconds = try cfgContainer.decodeIfPresent(Int.self, forKey: .renegotiatesAfterSeconds)
configuration = builder.build()
}
func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: PresetKeys.self)
try container.encode(id, forKey: .id)
try container.encode(name, forKey: .name)
try container.encode(comment, forKey: .comment)
var cfgContainer = container.nestedContainer(keyedBy: ConfigurationKeys.self, forKey: .configuration)
try cfgContainer.encode(configuration.endpointProtocols, forKey: .endpointProtocols)
try cfgContainer.encode(configuration.cipher, forKey: .cipher)
try cfgContainer.encode(configuration.digest, forKey: .digest)
try cfgContainer.encodeIfPresent(configuration.ca, forKey: .ca)
try cfgContainer.encodeIfPresent(configuration.clientCertificate, forKey: .clientCertificate)
try cfgContainer.encodeIfPresent(configuration.clientKey, forKey: .clientKey)
try cfgContainer.encode(configuration.compressionFraming, forKey: .compressionFraming)
try cfgContainer.encodeIfPresent(configuration.keepAliveSeconds, forKey: .keepAliveSeconds)
try cfgContainer.encodeIfPresent(configuration.renegotiatesAfterSeconds, forKey: .renegotiatesAfterSeconds)
}
}