NetNewsWire/iOS/Settings/EnableExtensionPointViewCon...

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Swift
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//
// EnableExtensionPointViewController.swift
// NetNewsWire-iOS
//
// Created by Maurice Parker on 4/16/20.
// Copyright © 2020 Ranchero Software. All rights reserved.
//
import UIKit
import AuthenticationServices
import Account
import OAuthSwift
import Secrets
class EnableExtensionPointViewController: UITableViewController {
@IBOutlet weak var extensionDescription: UILabel!
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private var callbackURL: URL? = nil
private var oauth: OAuthSwift?
weak var delegate: AddExtensionPointDismissDelegate?
var extensionPointType: ExtensionPoint.Type?
override func viewDidLoad() {
super.viewDidLoad()
navigationItem.title = extensionPointType?.title
extensionDescription.attributedText = extensionPointType?.description
tableView.register(ImageHeaderView.self, forHeaderFooterViewReuseIdentifier: "SectionHeader")
}
@IBAction func cancel(_ sender: Any) {
dismiss(animated: true, completion: nil)
delegate?.dismiss()
}
@IBAction func enable(_ sender: Any) {
guard let extensionPointType = extensionPointType else { return }
if let oauth1 = extensionPointType as? OAuth1SwiftProvider.Type {
enableOauth1(oauth1)
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} else if let oauth2 = extensionPointType as? OAuth2SwiftProvider.Type {
enableOauth2(oauth2)
} else {
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ExtensionPointManager.shared.activateExtensionPoint(extensionPointType) { result in
if case .failure(let error) = result {
self.presentError(error)
}
self.dismiss(animated: true, completion: nil)
self.delegate?.dismiss()
}
}
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return section == 0 ? ImageHeaderView.rowHeight : super.tableView(tableView, heightForHeaderInSection: section)
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
if section == 0 {
let headerView = tableView.dequeueReusableHeaderFooterView(withIdentifier: "SectionHeader") as! ImageHeaderView
headerView.imageView.image = extensionPointType?.templateImage
return headerView
} else {
return super.tableView(tableView, viewForHeaderInSection: section)
}
}
}
extension EnableExtensionPointViewController: OAuthSwiftURLHandlerType {
public func handle(_ url: URL) {
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let session = ASWebAuthenticationSession(url: url, callbackURLScheme: callbackURL!.scheme, completionHandler: { (url, error) in
if let callbackedURL = url {
OAuth1Swift.handle(url: callbackedURL)
}
guard let error = error else { return }
self.oauth?.cancel()
self.oauth = nil
DispatchQueue.main.async {
self.dismiss(animated: true, completion: nil)
self.delegate?.dismiss()
}
if case ASWebAuthenticationSessionError.canceledLogin = error {
print("Login cancelled.")
} else {
self.presentError(error)
}
})
session.presentationContextProvider = self
if !session.start() {
print("Session failed to start!!!")
}
}
}
extension EnableExtensionPointViewController: ASWebAuthenticationPresentationContextProviding {
public func presentationAnchor(for session: ASWebAuthenticationSession) -> ASPresentationAnchor {
return view.window!
}
}
private extension EnableExtensionPointViewController {
func enableOauth1(_ provider: OAuth1SwiftProvider.Type) {
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callbackURL = provider.callbackURL
let oauth1 = provider.oauth1Swift
self.oauth = oauth1
oauth1.authorizeURLHandler = self
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oauth1.authorize(withCallbackURL: callbackURL!) { [weak self] result in
guard let self = self, let extensionPointType = self.extensionPointType else { return }
switch result {
case .success(let tokenSuccess):
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ExtensionPointManager.shared.activateExtensionPoint(extensionPointType, tokenSuccess: tokenSuccess) { result in
if case .failure(let error) = result {
self.presentError(error)
}
self.dismiss(animated: true, completion: nil)
self.delegate?.dismiss()
}
case .failure(let oauthSwiftError):
self.presentError(oauthSwiftError)
}
self.oauth?.cancel()
self.oauth = nil
}
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}
func enableOauth2(_ provider: OAuth2SwiftProvider.Type) {
callbackURL = provider.callbackURL
let oauth2 = provider.oauth2Swift
self.oauth = oauth2
oauth2.authorizeURLHandler = self
let oauth2Vars = provider.oauth2Vars
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oauth2.authorize(withCallbackURL: callbackURL!, scope: oauth2Vars.scope, state: oauth2Vars.state, parameters: oauth2Vars.params) { [weak self] result in
guard let self = self, let extensionPointType = self.extensionPointType else { return }
switch result {
case .success(let tokenSuccess):
ExtensionPointManager.shared.activateExtensionPoint(extensionPointType, tokenSuccess: tokenSuccess) { result in
if case .failure(let error) = result {
self.presentError(error)
}
self.dismiss(animated: true, completion: nil)
self.delegate?.dismiss()
}
case .failure(let oauthSwiftError):
self.presentError(oauthSwiftError)
}
self.oauth?.cancel()
self.oauth = nil
}
}
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}