passepartout-apple/Passepartout/Core/Sources/Services/Pool.swift

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//
// Pool.swift
// Passepartout
//
// Created by Davide De Rosa on 6/11/18.
// Copyright (c) 2021 Davide De Rosa. All rights reserved.
//
// https://github.com/passepartoutvpn
//
// 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
public class Pool: Codable, Hashable {
public enum CodingKeys: String, CodingKey {
case id
case country
case extraCountries = "extra_countries"
case area
case num
case tags
// case location
case hostname
case isResolved = "resolved"
case numericAddresses = "addrs"
}
public let id: String
public let country: String
public let extraCountries: [String]?
public let area: String?
public let num: Int?
public let tags: [String]?
// public let location: (Double, Double)
public let hostname: String?
public let isResolved: Bool?
public let numericAddresses: [UInt32]?
// XXX: inefficient but convenient field (not serialized)
public func category(in infrastructure: Infrastructure) -> PoolCategory? {
for category in infrastructure.categories {
for group in category.groups {
for pool in group.pools {
if pool.id == id {
return category
}
}
}
}
return nil
}
public func supportedPresetIds(in infrastructure: Infrastructure) -> [String] {
let poolCategory = category(in: infrastructure)
return poolCategory?.presets ?? infrastructure.presets.map { $0.id }
}
public func hasAddress(_ address: String) -> Bool {
guard let numericAddresses = numericAddresses else {
return false
}
guard let ipv4 = DNSResolver.ipv4(fromString: address) else {
return false
}
return numericAddresses.contains(ipv4)
}
// XXX: inefficient, can't easily use lazy on struct
public func addresses() -> [String] {
var addrs = numericAddresses?.map { DNSResolver.string(fromIPv4: $0) } ?? []
if let hostname = hostname {
addrs.insert(hostname, at: 0)
}
return addrs
}
// MARK: Equatable
public static func == (lhs: Pool, rhs: Pool) -> Bool {
return lhs.id == rhs.id
}
// MARK: Hashable
public func hash(into hasher: inout Hasher) {
id.hash(into: &hasher)
}
}
extension Pool {
public var localizedCountry: String {
return Utils.localizedCountry(country)
}
public var localizedId: String {
var comps: [String] = [localizedCountry]
if let secondaryId = optionalSecondaryId {
comps.append(secondaryId)
}
return comps.joined(separator: " - ")
}
public var secondaryId: String {
return optionalSecondaryId ?? ""
}
private var optionalSecondaryId: String? {
var comps: [String] = []
if let extraCountries = extraCountries {
comps.append(contentsOf: extraCountries.map { Utils.localizedCountry($0) })
}
if let area = area {
// comps.append(area.uppercased())
comps.append(area.capitalized)
}
if let num = num {
comps.append("#\(num)")
}
guard !comps.isEmpty else {
return nil
}
var str = comps.joined(separator: " ")
if let tags = tags {
let suffix = tags.map { $0.uppercased() }.joined(separator: ",")
str = "\(str) (\(suffix))"
}
return str
}
}
public extension Array where Element: Pool {
func sortedPools() -> [Element] {
return sorted {
guard let larea = $0.area else {
guard let lnum = $0.num else {
return true
}
guard let rnum = $1.num else {
return false
}
guard lnum != rnum else {
return $0.secondaryId < $1.secondaryId
}
return lnum < rnum
}
guard let rarea = $1.area else {
return false
}
return larea < rarea
}
}
}