Firebase Authorization

Transcript

1. QPUBUPUJQT
    Firebase Authorization Ͱେมͩͬͨ͜ͱ
2. @nakajijapan Software Engineer CAMPFIRE / iOSDC / NKJ Internet iOS / Android / Web / macOS
3. NKJMultiMovieCaptureView NKJMovieComposer NKJPagerViewController PhotoSlider Teiten GitHub Sengiri Shari Ajimi Kazaguruma iOSDC 2017 Izumo
4. Izumo macOS iPhone / iPad Markdown Note Tool
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7. Firebase Authentication
9. 'JSFCBTF
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10. Firebase Authentication • ϩάΠϯΛ׬ྃ͢Δ • tokenΛϔομʹՃ͑ͯϦΫΤετ • αʔόʔଆͰݕূ
11. ⚠
12. ⚠ • Tokenͷ༗ޮظݶ͸̍࣌ؒ
13. ⚠ • Tokenͷ༗ޮظݶ͸̍࣌ؒ • getIDTokenForcingRefresh()ͷར༻ • ແ͚Ε͹ɺ৽͍͠tokenΛൃߦ
14. Retry
16. ⚠ • ࣌ʑϦΫΤετʹࣦഊ͢Δ • ͦͷޙɺ௨৴͸࠶։͞ΕΔ
17. RxSwift
18. func retryWithAuthIfNeeded() -> Observable<E> { let firebaseAuthProvider = FirebaseAuthProvier() return self.retryWhen({ (errors: Observable<Swift.Error>) in errors.enumerated().flatMap { retryCount, error -> Observable<Void> in guard case let Moya.MoyaError.statusCode(response) = error else { return Observable.error(error) } if response.statusCode != 401 { return Observable.error(error) } if response.statusCode == 401 && retryCount >= 2 { return Observable.error(error) } return firebaseAuthProvider.auth().do(onError: { error in throw error }).map { _ in () } } }) }
19. func auth() -> Observable<Bool> { return Observable<Bool>.create({ observe -> Disposable in self.firebaseAuth { success in observe.on(.next(success)) observe.on(.completed) } return Disposables.create() }) }
22. ඇಉظ
23. DispatchSemaphore
24. func auth() -> Observable<String> { let semaphore = DispatchSemaphore(value: 1) var authError: Error? return Observable<String>.create({ observer in Auth.auth().addStateDidChangeListener({ _, user in guard let user = user else { authError = FirebaseAuthError.unknownUser semaphore.signal() return } user.getIDTokenForcingRefresh(true, completion: { token, error in if error != nil { authError = FirebaseAuthError.noAuthToken semaphore.signal() return } UserCredentials.shared.accessToken = token semaphore.signal() }) }) semaphore.wait() if authError != nil { observer.onError(authError!) } observer.onNext(UserCredentials.shared.accessToken ?? "") observer.onCompleted() return Disposables.create() }) }
26. DispatchSemaphore
27. func auth() -> Observable<Bool> { return Observable<Bool>.create({ observe -> Disposable in self.firebaseAuth { success in observe.on(.next(success)) observe.on(.completed) } return Disposables.create() }) }
28. func auth() -> Observable<Bool> { return Observable<Bool>.create({ observe -> Disposable in self.firebaseAuth { success in observe.on(.next(success)) observe.on(.completed) } return Disposables.create() }) }
29. func auth() -> Observable<Bool> { return Observable<Bool>.create({ observe -> Disposable in self.firebaseAuth { success in observe.on(.next(success)) observe.on(.completed) } return Disposables.create() }) } ద੾ͳΤϥʔॲཧ͕ߦΘΕ͍ͯͳ͔ͬͨ ੒ޭͯ͠΋ࣦഊͯ͠΋OFYUͯ͠DPNQMFUFE
30. func auth() -> Observable<String> { var authError: Error? return Observable<String>.create({ observer in Auth.auth().addStateDidChangeListener({ _, user in guard let user = user else { observer.onError(FirebaseAuthError.unknownUser!) return } user.getIDTokenForcingRefresh(true, completion: { token, error in if error != nil { observer.onError(FirebaseAuthError.noAuthToken!) return } observer.onNext(token) observer.onCompleted() }) }) return Disposables.create() }) }
32. Wrap Up
33. Wrap Up • Token͕੾Εͨͱ͖ͷରॲΛߟྀ͢Δ • retryWhenͰTokenΛߋ৽ͯ͠ϩάΠϯঢ় ଶΛҡ࣋͢Δ • RxSwiftؤுΔ
34. Thanks.