forked from zelo72/mastodon-ios
76 lines
2.5 KiB
Swift
76 lines
2.5 KiB
Swift
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//
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// MastodonAuthenticationController.swift
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// Mastodon
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//
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// Created by MainasuK Cirno on 2021-6-4.
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//
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import os.log
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import UIKit
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import Combine
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import AuthenticationServices
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final class MastodonAuthenticationController {
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static let callbackURLScheme = "mastodon"
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static let callbackURL = "mastodon://joinmastodon.org/oauth"
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var disposeBag = Set<AnyCancellable>()
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// input
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var context: AppContext!
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let authenticateURL: URL
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var authenticationSession: ASWebAuthenticationSession?
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// output
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let isAuthenticating = CurrentValueSubject<Bool, Never>(false)
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let error = CurrentValueSubject<Error?, Never>(nil)
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let pinCodePublisher = PassthroughSubject<String, Never>()
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init(
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context: AppContext,
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authenticateURL: URL
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) {
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self.context = context
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self.authenticateURL = authenticateURL
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authentication()
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}
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}
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extension MastodonAuthenticationController {
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private func authentication() {
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authenticationSession = ASWebAuthenticationSession(
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url: authenticateURL,
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callbackURLScheme: MastodonAuthenticationController.callbackURLScheme
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) { [weak self] callback, error in
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guard let self = self else { return }
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os_log("%{public}s[%{public}ld], %{public}s: callback: %s, error: %s", ((#file as NSString).lastPathComponent), #line, #function, callback?.debugDescription ?? "<nil>", error.debugDescription)
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if let error = error {
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if let error = error as? ASWebAuthenticationSessionError {
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if error.errorCode == ASWebAuthenticationSessionError.canceledLogin.rawValue {
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os_log(.info, log: .debug, "%{public}s[%{public}ld], %{public}s: user cancel authentication", ((#file as NSString).lastPathComponent), #line, #function)
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self.isAuthenticating.value = false
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return
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}
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}
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self.isAuthenticating.value = false
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self.error.value = error
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return
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}
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guard let url = callback,
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let components = URLComponents(url: url, resolvingAgainstBaseURL: false),
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let codeQueryItem = components.queryItems?.first(where: { $0.name == "code" }),
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let code = codeQueryItem.value else {
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return
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}
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self.pinCodePublisher.send(code)
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}
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}
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}
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