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//
// NCLoginWeb.swift
// Nextcloud
//
// Created by Marino Faggiana on 21/08/2019.
// Copyright © 2019 Marino Faggiana. All rights reserved.
//
// Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import UIKit
import WebKit
import NextcloudKit
import FloatingPanel
class NCLoginWeb: UIViewController {
var activityIndicator: UIActivityIndicatorView!
var webView: WKWebView?
let appDelegate = UIApplication.shared.delegate as! AppDelegate
var titleView: String = ""
var urlBase = ""
var configServerUrl: String?
var configUsername: String?
var configPassword: String?
var configAppPassword: String?
var loginFlowV2Available = false
var loginFlowV2Token = ""
var loginFlowV2Endpoint = ""
var loginFlowV2Login = ""
// MARK: - View Life Cycle
override func viewDidLoad() {
super.viewDidLoad()
let accountCount = NCManageDatabase.shared.getAccounts()?.count ?? 0
// load AppConfig
if (NCBrandOptions.shared.disable_multiaccount == false) || (NCBrandOptions.shared.disable_multiaccount == true && accountCount == 0) {
if let configurationManaged = UserDefaults.standard.dictionary(forKey: "com.apple.configuration.managed"), NCBrandOptions.shared.use_AppConfig {
if let serverUrl = configurationManaged[NCGlobal.shared.configuration_serverUrl] as? String {
self.configServerUrl = serverUrl
}
if let username = configurationManaged[NCGlobal.shared.configuration_username] as? String, !username.isEmpty, username.lowercased() != "username" {
self.configUsername = username
}
if let password = configurationManaged[NCGlobal.shared.configuration_password] as? String, !password.isEmpty, password.lowercased() != "password" {
self.configPassword = password
}
if let apppassword = configurationManaged[NCGlobal.shared.configuration_apppassword] as? String, !apppassword.isEmpty, apppassword.lowercased() != "apppassword" {
self.configAppPassword = apppassword
}
}
}
if (NCBrandOptions.shared.use_login_web_personalized || NCBrandOptions.shared.use_AppConfig) && accountCount > 0 {
navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop, target: self, action: #selector(self.closeView(sender:)))
}
if accountCount > 0 {
navigationItem.rightBarButtonItem = UIBarButtonItem(image: UIImage(named: "users")!.image(color: .label, size: 35), style: .plain, target: self, action: #selector(self.changeUser(sender:)))
}
let config = WKWebViewConfiguration()
config.websiteDataStore = WKWebsiteDataStore.nonPersistent()
webView = WKWebView(frame: CGRect.zero, configuration: config)
webView!.navigationDelegate = self
view.addSubview(webView!)
webView!.translatesAutoresizingMaskIntoConstraints = false
webView!.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
webView!.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0).isActive = true
webView!.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
webView!.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true
activityIndicator = UIActivityIndicatorView(style: .medium)
activityIndicator.center = self.view.center
activityIndicator.startAnimating()
self.view.addSubview(activityIndicator)
// AppConfig
if let serverUrl = configServerUrl {
if let username = self.configUsername, let password = configAppPassword {
activityIndicator.stopAnimating()
createAccount(server: serverUrl, username: username, password: password)
return
} else if let username = self.configUsername, let password = configPassword {
getAppPassword(serverUrl: serverUrl, username: username, password: password)
return
} else {
urlBase = serverUrl
}
}
// ADD end point for Web Flow
if urlBase != NCBrandOptions.shared.linkloginPreferredProviders {
if loginFlowV2Available {
urlBase = loginFlowV2Login
} else {
urlBase += "/index.php/login/flow"
}
}
if let url = URL(string: urlBase) {
loadWebPage(webView: webView!, url: url)
} else {
let error = NKError(errorCode: NCGlobal.shared.errorInternalError, errorDescription: "_login_url_error_")
NCContentPresenter.shared.showError(error: error, priority: .max)
}
// TITLE
if let host = URL(string: urlBase)?.host {
titleView = host
if let account = NCManageDatabase.shared.getActiveAccount(), CCUtility.getPassword(account.account).isEmpty {
titleView = NSLocalizedString("_user_", comment: "") + " " + account.userId + " " + NSLocalizedString("_in_", comment: "") + " " + host
}
}
self.title = titleView
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// Stop timer error network
appDelegate.timerErrorNetworking?.invalidate()
if let account = NCManageDatabase.shared.getActiveAccount(), CCUtility.getPassword(account.account).isEmpty {
let message = "\n" + NSLocalizedString("_password_not_present_", comment: "")
let alertController = UIAlertController(title: titleView, message: message, preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: NSLocalizedString("_ok_", comment: ""), style: .default, handler: { _ in }))
present(alertController, animated: true)
}
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
// Start timer error network
appDelegate.startTimerErrorNetworking()
}
func loadWebPage(webView: WKWebView, url: URL) {
let language = NSLocale.preferredLanguages[0] as String
var request = URLRequest(url: url)
if let deviceName = "\(UIDevice.current.name) (\(NCBrandOptions.shared.brand) iOS)".cString(using: .utf8),
let deviceUserAgent = String(cString: deviceName, encoding: .ascii) {
webView.customUserAgent = deviceUserAgent
} else {
webView.customUserAgent = CCUtility.getUserAgent()
}
request.addValue("true", forHTTPHeaderField: "OCS-APIRequest")
request.addValue(language, forHTTPHeaderField: "Accept-Language")
webView.load(request)
}
func getAppPassword(serverUrl: String, username: String, password: String) {
NextcloudKit.shared.getAppPassword(serverUrl: serverUrl, username: username, password: password) { token, data, error in
self.activityIndicator.stopAnimating()
if error == .success, let password = token {
self.createAccount(server: serverUrl, username: username, password: password)
} else {
NCContentPresenter.shared.showError(error: error)
self.dismiss(animated: true, completion: nil)
}
}
}
@objc func closeView(sender: UIBarButtonItem) {
self.dismiss(animated: true, completion: nil)
}
@objc func changeUser(sender: UIBarButtonItem) {
toggleMenu()
}
}
extension NCLoginWeb: WKNavigationDelegate {
func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {
guard let url = webView.url else { return }
let urlString: String = url.absoluteString.lowercased()
// prevent http redirection
if urlBase.lowercased().hasPrefix("https://") && urlString.lowercased().hasPrefix("http://") {
let alertController = UIAlertController(title: NSLocalizedString("_error_", comment: ""), message: NSLocalizedString("_prevent_http_redirection_", comment: ""), preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: NSLocalizedString("_ok_", comment: ""), style: .default, handler: { _ in
_ = self.navigationController?.popViewController(animated: true)
}))
self.present(alertController, animated: true)
return
}
if urlString.hasPrefix(NCBrandOptions.shared.webLoginAutenticationProtocol) == true && urlString.contains("login") == true {
var server: String = ""
var user: String = ""
var password: String = ""
let keyValue = url.path.components(separatedBy: "&")
for value in keyValue {
if value.contains("server:") { server = value }
if value.contains("user:") { user = value }
if value.contains("password:") { password = value }
}
if server != "" && user != "" && password != "" {
let server: String = server.replacingOccurrences(of: "/server:", with: "")
let username: String = user.replacingOccurrences(of: "user:", with: "").replacingOccurrences(of: "+", with: " ")
let password: String = password.replacingOccurrences(of: "password:", with: "")
createAccount(server: server, username: username, password: password)
}
}
}
func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
var errorMessage = error.localizedDescription
for (key, value) in (error as NSError).userInfo {
let message = "\(key) \(value)\n"
errorMessage += message
}
let alertController = UIAlertController(title: NSLocalizedString("_error_", comment: ""), message: errorMessage, preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: NSLocalizedString("_ok_", comment: ""), style: .default, handler: { _ in }))
self.present(alertController, animated: true)
}
func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
DispatchQueue.global().async {
if let serverTrust = challenge.protectionSpace.serverTrust {
completionHandler(Foundation.URLSession.AuthChallengeDisposition.useCredential, URLCredential(trust: serverTrust))
} else {
completionHandler(URLSession.AuthChallengeDisposition.useCredential, nil)
}
}
}
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
decisionHandler(.allow)
}
func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("didStartProvisionalNavigation")
}
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
activityIndicator.stopAnimating()
print("didFinishProvisionalNavigation")
if loginFlowV2Available {
DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
NextcloudKit.shared.getLoginFlowV2Poll(token: self.loginFlowV2Token, endpoint: self.loginFlowV2Endpoint) { server, loginName, appPassword, data, error in
if error == .success && server != nil && loginName != nil && appPassword != nil {
self.createAccount(server: server!, username: loginName!, password: appPassword!)
}
}
}
}
}
// MARK: -
func createAccount(server: String, username: String, password: String) {
var urlBase = server
// Normalized
if urlBase.last == "/" {
urlBase = String(urlBase.dropLast())
}
// Create account
let account: String = "\(username) \(urlBase)"
// NO account found, clear all
if NCManageDatabase.shared.getAccounts() == nil {
NCUtility.shared.removeAllSettings()
}
// Add new account
NCManageDatabase.shared.deleteAccount(account)
NCManageDatabase.shared.addAccount(account, urlBase: urlBase, user: username, password: password)
guard let tableAccount = NCManageDatabase.shared.setAccountActive(account) else {
self.dismiss(animated: true, completion: nil)
return
}
appDelegate.settingAccount(account, urlBase: urlBase, user: username, userId: tableAccount.userId, password: password)
if CCUtility.getIntro() {
self.dismiss(animated: true)
} else {
CCUtility.setIntro(true)
if self.presentingViewController == nil {
if let viewController = UIStoryboard(name: "Main", bundle: nil).instantiateInitialViewController() {
viewController.modalPresentationStyle = .fullScreen
viewController.view.alpha = 0
appDelegate.window?.rootViewController = viewController
appDelegate.window?.makeKeyAndVisible()
UIView.animate(withDuration: 0.5) {
viewController.view.alpha = 1
}
}
} else {
self.dismiss(animated: true)
}
}
}
}
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