128 lines
4.4 KiB
Swift
128 lines
4.4 KiB
Swift
//
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// SSHKeyArmorImportTableViewController.swift
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// pass
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//
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// Created by Mingshen Sun on 2/4/2017.
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// Copyright © 2017 Bob Sun. All rights reserved.
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//
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import passKit
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import UIKit
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class SSHKeyArmorImportTableViewController: AutoCellHeightUITableViewController, UITextViewDelegate, QRScannerControllerDelegate {
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@IBOutlet var armorPrivateKeyTextView: UITextView!
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@IBOutlet var scanPrivateKeyCell: UITableViewCell!
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var gitSSHPrivateKeyPassphrase: String?
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var armorPrivateKey: String?
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class ScannedSSHKey {
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var segments = [String]()
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var message = ""
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func reset() {
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segments.removeAll()
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message = "LookingForStartingFrame.".localize()
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}
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func addSegment(segment: String) -> (accept: Bool, message: String) {
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// Skip duplicated segments.
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guard segment != segments.last else {
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return (accept: false, message: message)
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}
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// Check whether we have found the first block.
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guard !segments.isEmpty || segment.contains("-----BEGIN") else {
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return (accept: false, message: message)
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}
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// Update the list of scanned segment and return.
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segments.append(segment)
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if segment.range(of: "-----END.*KEY-----", options: .regularExpression, range: nil, locale: nil) != nil {
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message = "Done".localize()
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return (accept: true, message: message)
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} else {
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message = "ScannedQrCodes(%d)".localize(segments.count)
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return (accept: false, message: message)
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}
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}
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}
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var scanned = ScannedSSHKey()
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override func viewDidLoad() {
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super.viewDidLoad()
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armorPrivateKeyTextView.delegate = self
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scanPrivateKeyCell?.textLabel?.text = "ScanPrivateKeyQrCodes".localize()
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scanPrivateKeyCell?.selectionStyle = .default
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scanPrivateKeyCell?.accessoryType = .disclosureIndicator
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}
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@IBAction
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func doneButtonTapped(_: Any) {
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armorPrivateKey = armorPrivateKeyTextView.text
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performSegue(withIdentifier: "importSSHKeySegue", sender: self)
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}
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func textView(_: UITextView, shouldChangeTextIn _: NSRange, replacementText text: String) -> Bool {
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if text == UIPasteboard.general.string {
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// user pastes something, do the copy here again and clear the pasteboard in 45s
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SecurePasteboard.shared.copy(textToCopy: text)
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}
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return true
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}
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override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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let selectedCell = tableView.cellForRow(at: indexPath)
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if selectedCell == scanPrivateKeyCell {
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scanned.reset()
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performSegue(withIdentifier: "showSSHScannerSegue", sender: self)
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}
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tableView.deselectRow(at: indexPath, animated: true)
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}
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// MARK: - QRScannerControllerDelegate Methods
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func checkScannedOutput(line: String) -> (accept: Bool, message: String) {
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return scanned.addSegment(segment: line)
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}
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// MARK: - QRScannerControllerDelegate Methods
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func handleScannedOutput(line _: String) {
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armorPrivateKeyTextView.text = scanned.segments.joined(separator: "")
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}
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override func prepare(for segue: UIStoryboardSegue, sender _: Any?) {
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if segue.identifier == "showSSHScannerSegue" {
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if let navController = segue.destination as? UINavigationController {
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if let viewController = navController.topViewController as? QRScannerController {
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viewController.delegate = self
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}
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} else if let viewController = segue.destination as? QRScannerController {
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viewController.delegate = self
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}
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}
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}
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@IBAction
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private func cancelSSHScanner(segue _: UIStoryboardSegue) {}
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}
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extension SSHKeyArmorImportTableViewController: KeyImporter {
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static let keySource = KeySource.armor
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static let label = "AsciiArmorEncryptedKey".localize()
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func isReadyToUse() -> Bool {
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guard !armorPrivateKeyTextView.text.isEmpty else {
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Utils.alert(title: "CannotSave".localize(), message: "SetPrivateKey.".localize(), controller: self)
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return false
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}
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return true
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}
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func importKeys() throws {
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try KeyFileManager.PrivateSsh.importKey(from: armorPrivateKey ?? "")
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}
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}
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