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//
// TunnelConfigurationTableViewController.swift
// WireGuard
//
// Created by Jeroen Leenarts on 24-05-18.
// Copyright © 2018 WireGuard. All rights reserved.
//
import UIKit
import CoreData
import BNRCoreDataStack
import PromiseKit
protocol TunnelConfigurationTableViewControllerDelegate: class {
func didSave(tunnel: Tunnel, tunnelConfigurationTableViewController: TunnelConfigurationTableViewController)
}
class TunnelConfigurationTableViewController: UITableViewController {
@IBOutlet weak var saveButton: UIBarButtonItem!
private var viewContext: NSManagedObjectContext!
private weak var delegate: TunnelConfigurationTableViewControllerDelegate?
private var tunnel: Tunnel!
func configure(context: NSManagedObjectContext, delegate: TunnelConfigurationTableViewControllerDelegate? = nil, tunnel: Tunnel? = nil) {
viewContext = context
self.delegate = delegate
self.tunnel = tunnel ?? generateNewTunnelConfig()
}
private func generateNewTunnelConfig() -> Tunnel {
var tunnel: Tunnel! = nil
viewContext.performAndWait {
tunnel = Tunnel(context: viewContext)
tunnel.addToPeers(Peer(context: viewContext))
let interface = Interface(context: viewContext)
interface.addToAdresses(Address(context: viewContext))
tunnel.interface = interface
}
return tunnel
}
@IBAction func addPeer(_ sender: Any) {
if let moc = tunnel.managedObjectContext {
tableView.beginUpdates()
let insertedAt = IndexPath(row: tunnel.peers?.count ?? 0, section: 1)
tableView.insertRows(at: [insertedAt], with: .automatic)
tunnel.addToPeers(Peer(context: moc))
tableView.endUpdates()
tableView.scrollToRow(at: insertedAt, at: .middle, animated: true)
}
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 3
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch section {
case 1:
return tunnel?.peers?.count ?? 1
default:
return 1
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
switch indexPath.section {
case 0:
let cell = tableView.dequeueReusableCell(type: InterfaceTableViewCell.self, for: indexPath)
cell.model = tunnel.interface
return cell
case 1:
let cell = tableView.dequeueReusableCell(type: PeerTableViewCell.self, for: indexPath)
if let peer = tunnel.peers?.object(at: indexPath.row) as? Peer {
cell.peer = peer
} else {
let peer = Peer(context: tunnel.managedObjectContext!)
tunnel.addToPeers(peer)
cell.peer = peer
}
cell.delegate = self
return cell
default:
let cell = tableView.dequeueReusableCell(type: AddPeerTableViewCell.self, for: indexPath)
cell.tunnel = tunnel
return cell
}
}
@IBAction func saveTunnelConfiguration(_ sender: Any) {
Promise<Void>(resolver: { (seal) in
viewContext.perform({
self.viewContext.saveContext({ (result) in
switch result {
case .success:
seal.fulfill(())
case .failure(let error):
seal.reject(error)
}
})
})
}).then { () -> Promise<Void> in
self.delegate?.didSave(tunnel: self.tunnel, tunnelConfigurationTableViewController: self)
return Promise.value(())
}.catch { error in
print("Error saving: \(error)")
}
}
}
extension TunnelConfigurationTableViewController: PeerTableViewCellDelegate {
func delete(peer: Peer) {
if let moc = tunnel.managedObjectContext {
tableView.beginUpdates()
let deletedAt = IndexPath(row: tunnel.peers?.index(of: peer) ?? 0, section: 1)
tableView.deleteRows(at: [deletedAt], with: .automatic)
tunnel.removeFromPeers(peer)
moc.delete(peer)
tableView.endUpdates()
}
}
}
class InterfaceTableViewCell: UITableViewCell {
var model: Interface!
@IBOutlet weak var nameField: UITextField!
@IBOutlet weak var privateKeyField: UITextField!
@IBOutlet weak var publicKeyField: UITextField!
@IBOutlet weak var addressesField: UITextField!
@IBOutlet weak var listenPortField: UITextField!
@IBOutlet weak var dnsField: UITextField!
@IBOutlet weak var mtuField: UITextField!
}
extension InterfaceTableViewCell: UITextFieldDelegate {
@IBAction
func textfieldDidChange(_ sender: UITextField) {
let string = sender.text
if sender == nameField {
model.tunnel?.title = string
} else if sender == privateKeyField {
model.privateKey = string
} else if sender == publicKeyField {
model.publicKey = string
} else if sender == addressesField {
let address = Address(context: model.managedObjectContext!)
address.address = string
model.adresses = NSSet(array: [address])
} else if sender == listenPortField {
if let string = string, let port = Int16(string) {
model.listenPort = port
}
} else if sender == dnsField {
model.dns = string
} else if sender == mtuField {
if let string = string, let mtu = Int32(string) {
model.mtu = mtu
}
}
}
}
protocol PeerTableViewCellDelegate: class {
func delete(peer: Peer)
}
class PeerTableViewCell: UITableViewCell {
var peer: Peer!
weak var delegate: PeerTableViewCellDelegate?
@IBOutlet weak var publicKeyField: UITextField!
@IBOutlet weak var preSharedKeyField: UITextField!
@IBOutlet weak var allowedIpsField: UITextField!
@IBOutlet weak var endpointField: UITextField!
@IBOutlet weak var persistentKeepaliveField: UITextField!
@IBAction func deletePeer(_ sender: Any) {
delegate?.delete(peer: peer)
}
}
extension PeerTableViewCell: UITextFieldDelegate {
@IBAction
func textfieldDidChange(_ sender: UITextField) {
let string = sender.text
if sender == publicKeyField {
peer.publicKey = string
} else if sender == preSharedKeyField {
peer.presharedKey = string
} else if sender == allowedIpsField {
peer.allowedIPs = string
} else if sender == endpointField {
peer.endpoint = string
} else if sender == persistentKeepaliveField {
if let string = string, let persistentKeepalive = Int16(string) {
peer.persistentKeepalive = persistentKeepalive
}
}
}
}
class AddPeerTableViewCell: UITableViewCell {
var tunnel: Tunnel!
@IBAction func addPeer(_ sender: Any) {
if let moc = tunnel.managedObjectContext {
tunnel.addToPeers(Peer(context: moc))
}
}
}
extension TunnelConfigurationTableViewController: Identifyable {}
extension InterfaceTableViewCell: Identifyable {}
extension PeerTableViewCell: Identifyable {}
extension AddPeerTableViewCell: Identifyable {}
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