Kurdtvs-Live-Kurdish-TV-Kur.../Mastodon/Scene/Onboarding/Share/MastodonAuthenticationContr...

76 lines
2.5 KiB
Swift

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