passepartout-apple/Passepartout/Sources/Model/Profiles/ProviderConnectionProfile.s...

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//
// ProviderConnectionProfile.swift
// Passepartout
//
// Created by Davide De Rosa on 9/2/18.
// Copyright (c) 2018 Davide De Rosa. All rights reserved.
//
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// https://github.com/passepartoutvpn
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//
// 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
class ProviderConnectionProfile: ConnectionProfile, Codable, Equatable {
let name: Infrastructure.Name
var infrastructure: Infrastructure {
return InfrastructureFactory.shared.get(name)
}
var poolId: String {
didSet {
validateEndpoint()
}
}
var pool: Pool? {
return infrastructure.pool(for: poolId) ?? infrastructure.pool(for: infrastructure.defaults.pool)
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}
var presetId: String {
didSet {
validateEndpoint()
}
}
var preset: InfrastructurePreset? {
return infrastructure.preset(for: presetId)
}
var manualAddress: String?
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var manualProtocol: EndpointProtocol?
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var usesProviderEndpoint: Bool {
return (manualAddress != nil) || (manualProtocol != nil)
}
init(name: Infrastructure.Name) {
self.name = name
poolId = ""
presetId = ""
username = nil
poolId = infrastructure.defaults.pool
presetId = infrastructure.defaults.preset
}
func sortedPools() -> [Pool] {
return infrastructure.pools.sorted()
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}
private func validateEndpoint() {
guard let pool = pool, let preset = preset else {
manualAddress = nil
manualProtocol = nil
return
}
if let address = manualAddress, !pool.hasAddress(address) {
manualAddress = nil
}
if let proto = manualProtocol, !preset.hasProtocol(proto) {
manualProtocol = nil
}
}
// MARK: ConnectionProfile
let context: Context = .provider
var id: String {
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return name.rawValue
}
var username: String?
var requiresCredentials: Bool {
return true
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}
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func generate(from configuration: TunnelKitProvider.Configuration, preferences: Preferences) throws -> TunnelKitProvider.Configuration {
guard let pool = pool else {
preconditionFailure("Nil pool?")
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}
guard let preset = preset else {
preconditionFailure("Nil preset?")
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}
// assert(!pool.numericAddresses.isEmpty)
// XXX: copy paste, error prone
var builder = preset.configuration.builder()
builder.mtu = configuration.mtu
builder.shouldDebug = configuration.shouldDebug
builder.debugLogFormat = configuration.debugLogFormat
if let address = manualAddress {
builder.prefersResolvedAddresses = true
builder.resolvedAddresses = [address]
} else {
builder.prefersResolvedAddresses = !preferences.resolvesHostname
builder.resolvedAddresses = pool.addresses()
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}
if let proto = manualProtocol {
builder.endpointProtocols = [proto]
} else {
builder.endpointProtocols = preset.configuration.endpointProtocols
// builder.endpointProtocols = [
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// EndpointProtocol(.udp, 8080),
// EndpointProtocol(.tcp, 443)
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// ]
}
return builder.build()
}
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func with(newId: String) -> ConnectionProfile {
fatalError("Cannot rename a ProviderConnectionProfile")
}
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}
extension ProviderConnectionProfile {
static func ==(lhs: ProviderConnectionProfile, rhs: ProviderConnectionProfile) -> Bool {
return lhs.id == rhs.id
}
}
extension ProviderConnectionProfile {
var mainAddress: String {
assert(pool != nil, "Getting provider main address but no pool set")
return pool?.hostname ?? ""
}
var addresses: [String] {
return pool?.addresses() ?? []
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}
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var protocols: [EndpointProtocol] {
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return preset?.configuration.endpointProtocols ?? []
}
var canCustomizeEndpoint: Bool {
return true
}
var customAddress: String? {
return manualAddress
}
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var customProtocol: EndpointProtocol? {
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return manualProtocol
}
}