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319 lines
10 KiB
Swift
319 lines
10 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) 2018 Davide De Rosa. All rights reserved.
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//
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// https://github.com/keeshux
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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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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: TunnelKitProvider.Configuration!
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private lazy var configuration: TunnelKitProvider.ConfigurationBuilder = initialConfiguration.builder()
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var isEditable = false
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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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model.add(.tls)
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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.Other.header, for: .other)
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// footers
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if isEditable {
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model.setFooter(L10n.Configuration.Sections.Communication.Footer.editable, for: .communication)
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}
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// rows
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model.set([.cipher, .digest, .compressionFrame], in: .communication)
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model.set([.client, .tlsWrapping], in: .tls)
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model.set([.compressionAlgorithm, .keepAlive, .renegSeconds], 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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@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 tls
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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 compressionFrame
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case client
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case tlsWrapping
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case compressionAlgorithm
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case keepAlive
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case renegSeconds
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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, 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 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.cipher.description
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case .digest:
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cell.leftText = L10n.Configuration.Cells.Digest.caption
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if !configuration.cipher.embedsDigest {
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cell.rightText = configuration.digest.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 .compressionFrame:
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cell.leftText = L10n.Configuration.Cells.CompressionFrame.caption
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cell.rightText = configuration.compressionFraming.cellDescription
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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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let V = L10n.Configuration.Cells.TlsWrapping.Value.self
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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.auth
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case .crypt:
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cell.rightText = V.crypt
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}
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} else {
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cell.rightText = V.disabled
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}
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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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cell.rightText = L10n.Configuration.Cells.CompressionAlgorithm.Value.disabled // hardcoded because compression unsupported
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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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let V = L10n.Configuration.Cells.KeepAlive.Value.self
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if let keepAlive = configuration.keepAliveSeconds, keepAlive > 0 {
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cell.rightText = V.seconds(keepAlive)
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} else {
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cell.rightText = V.never
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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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let V = L10n.Configuration.Cells.RenegotiationSeconds.Value.self
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if let reneg = configuration.renegotiatesAfterSeconds, reneg > 0 {
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cell.rightText = V.after(TimeInterval(reneg).localized)
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} else {
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cell.rightText = V.never
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}
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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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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.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.cipher.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.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 .compressionFrame:
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let vc = OptionViewController<SessionProxy.CompressionFraming>()
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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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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.CompressionFrame.Value.self
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switch self {
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case .disabled:
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return V.disabled
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case .compLZO:
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return V.lzo
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case .compress:
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return V.compress
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}
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}
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}
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