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https://github.com/passepartoutvpn/passepartout-apple.git
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446 lines
15 KiB
Swift
446 lines
15 KiB
Swift
//
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// ConfigurationViewController.swift
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// Passepartout-iOS
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//
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// Created by Davide De Rosa on 9/2/18.
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// Copyright (c) 2019 Davide De Rosa. All rights reserved.
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//
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// https://github.com/passepartoutvpn
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//
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// This file is part of Passepartout.
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//
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// Passepartout is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Passepartout is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
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//
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import UIKit
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import TunnelKit
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import SwiftyBeaver
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import Passepartout_Core
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private let log = SwiftyBeaver.self
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class ConfigurationViewController: UIViewController, TableModelHost {
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@IBOutlet private weak var tableView: UITableView!
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private lazy var itemRefresh = UIBarButtonItem(barButtonSystemItem: .refresh, target: self, action: #selector(refresh))
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var initialConfiguration: SessionProxy.Configuration!
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private lazy var configuration: SessionProxy.ConfigurationBuilder = initialConfiguration.builder()
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var originalConfigurationURL: URL?
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private var isEditable: Bool {
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return originalConfigurationURL != nil
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}
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weak var delegate: ConfigurationModificationDelegate?
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// MARK: TableModelHost
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lazy var model: TableModel<SectionType, RowType> = {
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let model: TableModel<SectionType, RowType> = TableModel()
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// sections
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model.add(.communication)
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if isEditable {
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model.add(.reset)
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}
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model.add(.tls)
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model.add(.compression)
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model.add(.dns)
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model.add(.other)
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// headers
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model.setHeader(L10n.Configuration.Sections.Communication.header, for: .communication)
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model.setHeader(L10n.Configuration.Sections.Tls.header, for: .tls)
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model.setHeader(L10n.Configuration.Sections.Compression.header, for: .compression)
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model.setHeader(L10n.Configuration.Sections.Dns.header, for: .dns)
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model.setHeader(L10n.Configuration.Sections.Other.header, for: .other)
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// footers
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if isEditable {
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model.setFooter(L10n.Configuration.Sections.Reset.footer, for: .reset)
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}
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// rows
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model.set([.cipher, .digest], in: .communication)
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if isEditable {
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model.set([.resetOriginal], in: .reset)
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}
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model.set([.client, .tlsWrapping, .eku], in: .tls)
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model.set([.compressionFraming, .compressionAlgorithm], in: .compression)
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var dnsRows: [RowType]
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if let dnsServers = configuration.dnsServers {
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dnsRows = [RowType](repeating: .dnsServer, count: dnsServers.count)
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} else {
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dnsRows = []
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}
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dnsRows.append(.dnsDomain)
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model.set(dnsRows, in: .dns)
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model.set([.keepAlive, .renegSeconds, .randomEndpoint], in: .other)
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return model
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}()
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func reloadModel() {
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}
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// MARK: UIViewController
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override func awakeFromNib() {
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super.awakeFromNib()
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applyDetailTitle(Theme.current)
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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guard let _ = initialConfiguration else {
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fatalError("Initial configuration not set")
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}
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guard isEditable else {
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tableView.allowsSelection = false
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return
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}
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itemRefresh.isEnabled = false
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navigationItem.rightBarButtonItem = itemRefresh
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}
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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if let ip = tableView.indexPathForSelectedRow {
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tableView.deselectRow(at: ip, animated: true)
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}
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}
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// MARK: Actions
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private func resetOriginalConfiguration() {
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guard let originalURL = originalConfigurationURL else {
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log.warning("Resetting with no original configuration set? Bad table model?")
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return
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}
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let parsingResult: ConfigurationParser.Result
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do {
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parsingResult = try ConfigurationParser.parsed(fromURL: originalURL)
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} catch let e {
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log.error("Could not parse original configuration: \(e)")
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return
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}
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configuration = parsingResult.configuration.builder()
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itemRefresh.isEnabled = !configuration.canCommunicate(with: initialConfiguration)
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initialConfiguration = parsingResult.configuration
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tableView.reloadData()
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delegate?.configuration(didUpdate: initialConfiguration)
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}
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@IBAction private func refresh() {
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guard isEditable else {
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return
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}
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initialConfiguration = configuration.build()
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itemRefresh.isEnabled = false
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delegate?.configurationShouldReinstall()
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}
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}
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// MARK: -
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extension ConfigurationViewController: UITableViewDataSource, UITableViewDelegate {
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enum SectionType: Int {
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case communication
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case reset
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case tls
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case compression
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case dns
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case other
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}
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enum RowType: Int {
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case cipher
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case digest
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case resetOriginal
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case client
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case tlsWrapping
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case eku
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case compressionFraming
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case compressionAlgorithm
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case dnsServer
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case dnsDomain
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case keepAlive
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case renegSeconds
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case randomEndpoint
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}
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func numberOfSections(in tableView: UITableView) -> Int {
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return model.count
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}
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func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
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return model.header(for: section)
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}
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func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
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return model.footer(for: section)
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}
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func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
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return model.headerHeight(for: section)
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}
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func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return model.count(for: section)
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}
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func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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let row = model.row(at: indexPath)
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let V = L10n.Configuration.Cells.self
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let cell = Cells.setting.dequeue(from: tableView, for: indexPath)
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if !isEditable {
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cell.accessoryType = .none
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}
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cell.isTappable = isEditable
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switch row {
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case .cipher:
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cell.leftText = L10n.Configuration.Cells.Cipher.caption
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cell.rightText = configuration.fallbackCipher.description
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case .digest:
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cell.leftText = L10n.Configuration.Cells.Digest.caption
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if !configuration.fallbackCipher.embedsDigest {
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cell.rightText = configuration.fallbackDigest.description
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} else {
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cell.rightText = L10n.Configuration.Cells.Digest.Value.embedded
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cell.accessoryType = .none
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cell.isTappable = false
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}
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case .resetOriginal:
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cell.leftText = L10n.Configuration.Cells.ResetOriginal.caption
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cell.applyAction(Theme.current)
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case .client:
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cell.leftText = L10n.Configuration.Cells.Client.caption
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cell.rightText = (configuration.clientCertificate != nil) ? L10n.Configuration.Cells.Client.Value.enabled : L10n.Configuration.Cells.Client.Value.disabled
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cell.accessoryType = .none
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cell.isTappable = false
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case .tlsWrapping:
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cell.leftText = L10n.Configuration.Cells.TlsWrapping.caption
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if let strategy = configuration.tlsWrap?.strategy {
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switch strategy {
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case .auth:
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cell.rightText = V.TlsWrapping.Value.auth
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case .crypt:
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cell.rightText = V.TlsWrapping.Value.crypt
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}
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} else {
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cell.rightText = V.All.Value.disabled
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}
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cell.accessoryType = .none
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cell.isTappable = false
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case .eku:
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cell.leftText = V.Eku.caption
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cell.rightText = (configuration.checksEKU ?? false) ? V.All.Value.enabled : V.All.Value.disabled
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cell.accessoryType = .none
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cell.isTappable = false
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case .compressionFraming:
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cell.leftText = L10n.Configuration.Cells.CompressionFraming.caption
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cell.rightText = configuration.fallbackCompressionFraming.cellDescription
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cell.accessoryType = .none
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cell.isTappable = false
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case .compressionAlgorithm:
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cell.leftText = L10n.Configuration.Cells.CompressionAlgorithm.caption
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if let compressionAlgorithm = configuration.compressionAlgorithm {
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cell.rightText = compressionAlgorithm.cellDescription
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} else {
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cell.rightText = V.All.Value.disabled
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}
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cell.accessoryType = .none
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cell.isTappable = false
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case .dnsServer:
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guard let dnsServers = configuration.dnsServers else {
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fatalError("Showing DNS section without any custom server")
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}
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cell.leftText = L10n.Configuration.Cells.DnsServer.caption
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cell.rightText = dnsServers[indexPath.row]
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cell.accessoryType = .none
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cell.isTappable = false
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case .dnsDomain:
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cell.leftText = L10n.Configuration.Cells.DnsDomain.caption
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cell.rightText = configuration.searchDomain ?? L10n.Configuration.Cells.DnsDomain.Value.none
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cell.accessoryType = .none
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cell.isTappable = false
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case .keepAlive:
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cell.leftText = L10n.Configuration.Cells.KeepAlive.caption
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if let keepAlive = configuration.keepAliveInterval, keepAlive > 0 {
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cell.rightText = V.KeepAlive.Value.seconds(Int(keepAlive))
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} else {
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cell.rightText = V.All.Value.disabled
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}
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cell.accessoryType = .none
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cell.isTappable = false
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case .renegSeconds:
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cell.leftText = L10n.Configuration.Cells.RenegotiationSeconds.caption
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if let reneg = configuration.renegotiatesAfter, reneg > 0 {
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cell.rightText = V.RenegotiationSeconds.Value.after(TimeInterval(reneg).localized)
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} else {
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cell.rightText = V.All.Value.disabled
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}
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cell.accessoryType = .none
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cell.isTappable = false
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case .randomEndpoint:
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cell.leftText = V.RandomEndpoint.caption
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cell.rightText = (configuration.randomizeEndpoint ?? false) ? V.All.Value.enabled : V.All.Value.disabled
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cell.accessoryType = .none
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cell.isTappable = false
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}
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return cell
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}
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func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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guard isEditable else {
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fatalError("Table should not allow selection when isEditable is false")
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}
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let settingCell = tableView.cellForRow(at: indexPath) as? SettingTableViewCell
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switch model.row(at: indexPath) {
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case .cipher:
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let vc = OptionViewController<SessionProxy.Cipher>()
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vc.title = settingCell?.leftText
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vc.options = [.aes128cbc, .aes192cbc, .aes256cbc, .aes128gcm, .aes192gcm, .aes256gcm]
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vc.selectedOption = configuration.cipher
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vc.descriptionBlock = { $0.description }
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vc.selectionBlock = { [weak self] in
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self?.configuration.cipher = $0
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self?.popAndCheckRefresh()
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}
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navigationController?.pushViewController(vc, animated: true)
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case .digest:
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guard !configuration.fallbackCipher.embedsDigest else {
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return
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}
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let vc = OptionViewController<SessionProxy.Digest>()
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vc.title = settingCell?.leftText
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vc.options = [.sha1, .sha224, .sha256, .sha384, .sha512]
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vc.selectedOption = configuration.digest
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vc.descriptionBlock = { $0.description }
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vc.selectionBlock = { [weak self] in
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self?.configuration.digest = $0
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self?.popAndCheckRefresh()
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}
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navigationController?.pushViewController(vc, animated: true)
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// case .compressionFraming:
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// let vc = OptionViewController<SessionProxy.CompressionFraming>()
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// vc.title = settingCell?.leftText
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// vc.options = [.disabled, .compLZO, .compress]
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// vc.selectedOption = configuration.compressionFraming
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// vc.descriptionBlock = { $0.cellDescription }
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// vc.selectionBlock = { [weak self] in
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// self?.configuration.compressionFraming = $0
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// self?.popAndCheckRefresh()
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// }
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// navigationController?.pushViewController(vc, animated: true)
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case .resetOriginal:
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tableView.deselectRow(at: indexPath, animated: true)
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resetOriginalConfiguration()
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default:
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break
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}
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}
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// MARK: Helpers
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private func popAndCheckRefresh() {
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itemRefresh.isEnabled = !configuration.canCommunicate(with: initialConfiguration)
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tableView.reloadData()
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navigationController?.popViewController(animated: true)
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delegate?.configuration(didUpdate: configuration.build())
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}
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}
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// MARK: -
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private extension SessionProxy.CompressionFraming {
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var cellDescription: String {
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let V = L10n.Configuration.Cells.self
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switch self {
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case .disabled:
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return V.All.Value.disabled
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case .compLZO:
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return V.CompressionFraming.Value.lzo
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case .compress:
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return V.CompressionFraming.Value.compress
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}
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}
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}
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private extension SessionProxy.CompressionAlgorithm {
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var cellDescription: String {
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let V = L10n.Configuration.Cells.self
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switch self {
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case .disabled:
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return V.All.Value.disabled
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case .LZO:
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return V.CompressionAlgorithm.Value.lzo
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case .other:
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return V.CompressionAlgorithm.Value.other
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}
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}
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}
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