session-ios/Signal/src/Loki/Settings/DeviceLinkingModal.swift

193 lines
8.8 KiB
Swift

import NVActivityIndicatorView
@objc(LKDeviceLinkingModal)
final class DeviceLinkingModal : Modal, DeviceLinkingSessionDelegate {
private let mode: Mode
private let delegate: DeviceLinkingModalDelegate?
private var deviceLink: DeviceLink?
// MARK: Types
enum Mode : String { case master, slave }
// MARK: Components
private lazy var topSpacer = UIView.spacer(withHeight: 8)
private lazy var spinner = NVActivityIndicatorView(frame: CGRect.zero, type: .circleStrokeSpin, color: .white, padding: nil)
private lazy var titleLabel: UILabel = {
let result = UILabel()
result.textColor = Theme.primaryColor
result.font = UIFont.ows_dynamicTypeHeadlineClamped
result.numberOfLines = 0
result.lineBreakMode = .byWordWrapping
result.textAlignment = .center
return result
}()
private lazy var subtitleLabel: UILabel = {
let result = UILabel()
result.textColor = Theme.primaryColor
result.font = UIFont.ows_dynamicTypeCaption1Clamped
result.numberOfLines = 0
result.lineBreakMode = .byWordWrapping
result.textAlignment = .center
return result
}()
private lazy var mnemonicLabel: UILabel = {
let result = UILabel()
result.textColor = Theme.primaryColor
result.font = UIFont.ows_dynamicTypeCaption1Clamped
result.numberOfLines = 0
result.lineBreakMode = .byWordWrapping
result.textAlignment = .center
return result
}()
private lazy var buttonStackView: UIStackView = {
let result = UIStackView(arrangedSubviews: [ authorizeButton, cancelButton ])
result.axis = .horizontal
result.distribution = .fillEqually
return result
}()
private lazy var authorizeButton: OWSFlatButton = {
let result = OWSFlatButton.button(title: NSLocalizedString("Authorize", comment: ""), font: .ows_dynamicTypeBodyClamped, titleColor: .white, backgroundColor: .clear, target: self, selector: #selector(authorizeDeviceLink))
result.setBackgroundColors(upColor: .clear, downColor: .clear)
return result
}()
private lazy var bottomSpacer = UIView.spacer(withHeight: 8)
// MARK: Lifecycle
init(mode: Mode, delegate: DeviceLinkingModalDelegate?) {
self.mode = mode
if mode == .slave {
guard delegate != nil else { preconditionFailure("Missing delegate for device linking modal in slave mode.") }
}
self.delegate = delegate
super.init(nibName: nil, bundle: nil)
}
@objc(initWithMode:delegate:)
convenience init(modeAsString: String, delegate: DeviceLinkingModalDelegate?) {
guard let mode = Mode(rawValue: modeAsString) else { preconditionFailure("Invalid mode: \(modeAsString).") }
self.init(mode: mode, delegate: delegate)
}
required init?(coder: NSCoder) { preconditionFailure() }
override init(nibName: String?, bundle: Bundle?) { preconditionFailure() }
override func viewDidLoad() {
super.viewDidLoad()
switch mode {
case .master: let _ = DeviceLinkingSession.startListeningForLinkingRequests(with: self)
case .slave: let _ = DeviceLinkingSession.startListeningForLinkingAuthorization(with: self)
}
}
override func populateContentView() {
let stackView = UIStackView(arrangedSubviews: [ topSpacer, spinner, UIView.spacer(withHeight: 8), titleLabel, subtitleLabel, mnemonicLabel, buttonStackView, bottomSpacer ])
contentView.addSubview(stackView)
stackView.spacing = 16
stackView.axis = .vertical
spinner.set(.height, to: 64)
spinner.startAnimating()
titleLabel.text = {
switch mode {
case .master: return NSLocalizedString("Waiting for Device", comment: "")
case .slave: return NSLocalizedString("Waiting for Authorization", comment: "")
}
}()
subtitleLabel.text = {
switch mode {
case .master: return NSLocalizedString("Create a new account on your other device and click \"Link Device\" when you're at the \"Create Your Loki Messenger Account\" step to start the linking process", comment: "")
case .slave: return NSLocalizedString("Please check that the words below match the ones shown on your other device", comment: "")
}
}()
mnemonicLabel.isHidden = (mode == .master)
if mode == .slave {
let hexEncodedPublicKey = OWSIdentityManager.shared().identityKeyPair()!.hexEncodedPublicKey.removing05PrefixIfNeeded()
mnemonicLabel.text = Mnemonic.encode(hexEncodedString: hexEncodedPublicKey).split(separator: " ")[0..<3].joined(separator: " ")
}
let buttonHeight = cancelButton.button.titleLabel!.font.pointSize * 48 / 17
authorizeButton.set(.height, to: buttonHeight)
cancelButton.set(.height, to: buttonHeight)
authorizeButton.isHidden = true
bottomSpacer.isHidden = true
stackView.pin(.leading, to: .leading, of: contentView, withInset: 16)
stackView.pin(.top, to: .top, of: contentView, withInset: 16)
contentView.pin(.trailing, to: .trailing, of: stackView, withInset: 16)
contentView.pin(.bottom, to: .bottom, of: stackView, withInset: 16)
}
// MARK: Device Linking
func requestUserAuthorization(for deviceLink: DeviceLink) {
self.deviceLink = deviceLink
topSpacer.isHidden = true
spinner.stopAnimating()
spinner.isHidden = true
titleLabel.text = NSLocalizedString("Linking Request Received", comment: "")
subtitleLabel.text = NSLocalizedString("Please check that the words below match the ones shown on your other device", comment: "")
let hexEncodedPublicKey = deviceLink.slave.hexEncodedPublicKey.removing05PrefixIfNeeded()
mnemonicLabel.text = Mnemonic.encode(hexEncodedString: hexEncodedPublicKey).split(separator: " ")[0..<3].joined(separator: " ")
mnemonicLabel.isHidden = false
authorizeButton.isHidden = false
}
@objc private func authorizeDeviceLink() {
let deviceLink = self.deviceLink!
let linkingAuthorizationMessage = DeviceLinkingUtilities.getLinkingAuthorizationMessage(for: deviceLink)
ThreadUtil.enqueue(linkingAuthorizationMessage)
let session = DeviceLinkingSession.current!
session.stopListeningForLinkingRequests()
session.markLinkingRequestAsProcessed()
dismiss(animated: true, completion: nil)
let master = DeviceLink.Device(hexEncodedPublicKey: deviceLink.master.hexEncodedPublicKey, signature: linkingAuthorizationMessage.masterSignature)
let signedDeviceLink = DeviceLink(between: master, and: deviceLink.slave)
LokiStorageAPI.addDeviceLink(signedDeviceLink).done { [weak self] in
self?.delegate?.handleDeviceLinkAuthorized(signedDeviceLink)
}.catch { error in
print("[Loki] Failed to add device link due to error: \(error).")
}
Timer.scheduledTimer(withTimeInterval: 8, repeats: false) { _ in
let _ = SSKEnvironment.shared.syncManager.syncAllContacts()
}
}
func handleDeviceLinkAuthorized(_ deviceLink: DeviceLink) {
let session = DeviceLinkingSession.current!
session.stopListeningForLinkingAuthorization()
topSpacer.isHidden = true
spinner.stopAnimating()
spinner.isHidden = true
titleLabel.text = NSLocalizedString("Device Link Authorized", comment: "")
subtitleLabel.text = NSLocalizedString("Your device has been linked successfully", comment: "")
mnemonicLabel.isHidden = true
buttonStackView.isHidden = true
bottomSpacer.isHidden = false
LokiStorageAPI.addDeviceLink(deviceLink).catch { error in
print("[Loki] Failed to add device link due to error: \(error).")
}
Timer.scheduledTimer(withTimeInterval: 2, repeats: false) { _ in
self.delegate?.handleDeviceLinkAuthorized(deviceLink)
self.dismiss(animated: true, completion: nil)
}
}
@objc override func cancel() {
guard let session = DeviceLinkingSession.current else {
return print("[Loki] Device linking session missing.") // Should never occur
}
session.stopListeningForLinkingRequests()
session.markLinkingRequestAsProcessed() // Only relevant in master mode
delegate?.handleDeviceLinkingModalDismissed() // Only relevant in slave mode
if let deviceLink = deviceLink {
OWSPrimaryStorage.shared().dbReadWriteConnection.readWrite { transaction in
OWSPrimaryStorage.shared().removePreKeyBundle(forContact: deviceLink.slave.hexEncodedPublicKey, transaction: transaction)
}
}
dismiss(animated: true, completion: nil)
}
}