mirror of
https://gitlab.opencode.de/bwi/bundesmessenger/clients/bundesmessenger-ios.git
synced 2026-04-19 16:13:42 +02:00
Implement login with scanned QR code flows
This commit is contained in:
Stefan Ceriu
committed by
Stefan Ceriu
Stefan Ceriu
parent
bbd3470659
commit
fa3866ea76
+137
-16
@@ -25,15 +25,19 @@ import ZXingObjC
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class QRLoginService: NSObject, QRLoginServiceProtocol {
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private let client: AuthenticationRestClient
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private let sessionCreator: SessionCreatorProtocol
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private var isCameraReady = false
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private lazy var zxCapture = ZXCapture()
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private let cameraAccessManager = CameraAccessManager()
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private var rendezvousService: RendezvousService?
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init(client: AuthenticationRestClient,
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mode: QRLoginServiceMode,
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state: QRLoginServiceState = .initial) {
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self.client = client
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self.sessionCreator = SessionCreator()
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self.mode = mode
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self.state = state
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super.init()
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@@ -72,16 +76,9 @@ class QRLoginService: NSObject, QRLoginServiceProtocol {
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}
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func generateQRCode() async throws -> QRLoginCode {
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let transport = QRLoginRendezvousTransportDetails(type: "http.v1",
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uri: "")
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let rendezvous = QRLoginRendezvous(transport: transport,
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algorithm: "m.rendezvous.v1.curve25519-aes-sha256",
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key: "")
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return QRLoginCode(user: client.credentials.userId,
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initiator: .new,
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rendezvous: rendezvous)
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fatalError("Not implemented")
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}
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func scannerView() -> AnyView {
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let frame = UIScreen.main.bounds
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let view = UIView(frame: frame)
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@@ -109,6 +106,8 @@ class QRLoginService: NSObject, QRLoginServiceProtocol {
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}
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func stopScanning(destroy: Bool) {
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zxCapture.delegate = nil
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guard zxCapture.running else {
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return
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}
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@@ -120,20 +119,21 @@ class QRLoginService: NSObject, QRLoginServiceProtocol {
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}
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}
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@MainActor
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func processScannedQR(_ data: Data) {
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state = .connectingToDevice
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do {
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let code = try JSONDecoder().decode(QRLoginCode.self, from: data)
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MXLog.debug("[QRLoginService] processScannedQR: \(code)")
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// TODO: implement
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} catch {
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guard let code = try? JSONDecoder().decode(QRLoginCode.self, from: data) else {
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state = .failed(error: .invalidQR)
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return
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}
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Task {
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await processQRLoginCode(code)
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}
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}
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func confirmCode() {
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switch state {
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case .waitingForConfirmation(let code):
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case .waitingForConfirmation:
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// TODO: implement
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break
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default:
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@@ -143,11 +143,19 @@ class QRLoginService: NSObject, QRLoginServiceProtocol {
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func restart() {
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state = .initial
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Task {
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await declineRendezvous()
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}
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}
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func reset() {
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stopScanning(destroy: false)
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state = .initial
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Task {
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await declineRendezvous()
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}
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}
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deinit {
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@@ -155,6 +163,119 @@ class QRLoginService: NSObject, QRLoginServiceProtocol {
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}
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// MARK: Private
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@MainActor
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private func processQRLoginCode(_ code: QRLoginCode) async {
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MXLog.debug("[QRLoginService] processQRLoginCode: \(code)")
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state = .connectingToDevice
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guard let uri = code.rendezvous.transport?.uri,
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let rendezvousURL = URL(string: uri),
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let key = code.rendezvous.key else {
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MXLog.debug("[QRLoginService] QR code invalid")
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state = .failed(error: .invalidQR)
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return
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}
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let transport = RendezvousTransport(baseURL: BuildSettings.rendezvousServerBaseURL,
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rendezvousURL: rendezvousURL)
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let rendezvousService = RendezvousService(transport: transport)
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self.rendezvousService = rendezvousService
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MXLog.debug("[QRLoginService] Joining the rendezvous at \(rendezvousURL)")
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guard case .success(let validationCode) = await rendezvousService.joinRendezvous(withInterlocutorPublicKey: key) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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state = .waitingForConfirmation(validationCode)
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MXLog.debug("[QRLoginService] Requesting login")
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guard let requestData = try? JSONEncoder().encode(QRLoginRendezvousPayload(type: .loginStart, intent: .loginStart)),
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case .success = await rendezvousService.send(data: requestData) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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MXLog.debug("[QRLoginService] Waiting for available protocols")
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guard case let .success(data) = await rendezvousService.receive(),
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let responsePayload = try? JSONDecoder().decode(QRLoginRendezvousPayload.self, from: data) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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MXLog.debug("[QRLoginService] Received available protocols \(responsePayload)")
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guard let protocols = responsePayload.protocols,
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protocols.contains(.loginToken) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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MXLog.debug("[QRLoginService] Request login with `login_token`")
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guard let requestData = try? JSONEncoder().encode(QRLoginRendezvousPayload(type: .loginProgress, protocol: .loginToken)),
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case .success = await rendezvousService.send(data: requestData) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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state = .waitingForRemoteSignIn
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MXLog.debug("[QRLoginService] Waiting for the login token")
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guard case let .success(data) = await rendezvousService.receive(),
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let responsePayload = try? JSONDecoder().decode(QRLoginRendezvousPayload.self, from: data),
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let login_token = responsePayload.loginToken else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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MXLog.debug("[QRLoginService] Received login token \(responsePayload)")
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MXLog.debug("[QRLoginService] Logging in with the login token")
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guard let credentials = try? await client.login(parameters: LoginTokenParameters(token: login_token)) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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MXLog.debug("[QRLoginService] Got acess token")
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let session = sessionCreator.createSession(credentials: credentials, client: client, removeOtherAccounts: false)
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MXLog.debug("[QRLoginService] Created session")
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MXLog.debug("[QRLoginService] No E2EE support. Inform the interlocutor of finishing")
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guard let requestData = try? JSONEncoder().encode(QRLoginRendezvousPayload(type: .loginFinish, outcome: .success)),
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case .success = await rendezvousService.send(data: requestData) else {
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await teardownRendezvous(state: .failed(error: .rendezvousFailed))
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return
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}
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state = .completed(session: session)
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}
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private func declineRendezvous() async {
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guard let requestData = try? JSONEncoder().encode(QRLoginRendezvousPayload(type: .loginFinish, outcome: .declined)) else {
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return
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}
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_ = await rendezvousService?.send(data: requestData)
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await teardownRendezvous()
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}
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private func teardownRendezvous(state: QRLoginServiceState? = nil) async {
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// Stop listening for changes, try deleting the resource
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_ = await rendezvousService?.tearDown()
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// Try setting the new state, if necessary
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if let state = state {
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switch self.state {
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case .completed:
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return
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case .initial:
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return
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default:
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self.state = state
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}
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}
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}
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}
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// MARK: - ZXCaptureDelegate
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