126 lines
6.1 KiB
Swift
126 lines
6.1 KiB
Swift
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import SignalServiceKit
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@objc
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public class SafetyNumberConfirmationAlert: NSObject {
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// MARK: - Dependencies
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private var databaseStorage: SDSDatabaseStorage {
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return SDSDatabaseStorage.shared
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}
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private var contactsManager: OWSContactsManager {
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return Environment.shared.contactsManager
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}
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// MARK: -
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@objc
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public class func presentAlertIfNecessary(address: SignalServiceAddress, confirmationText: String, completion: @escaping (Bool) -> Void) -> Bool {
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return self.presentAlertIfNecessary(addresses: [address], confirmationText: confirmationText, completion: completion, beforePresentationHandler: nil)
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}
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@objc
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public class func presentAlertIfNecessary(address: SignalServiceAddress, confirmationText: String, completion: @escaping (Bool) -> Void, beforePresentationHandler: (() -> Void)? = nil) -> Bool {
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return self.presentAlertIfNecessary(addresses: [address], confirmationText: confirmationText, completion: completion, beforePresentationHandler: beforePresentationHandler)
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}
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@objc
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public class func presentAlertIfNecessary(addresses: [SignalServiceAddress], confirmationText: String, completion: @escaping (Bool) -> Void) -> Bool {
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return self.presentAlertIfNecessary(addresses: addresses, confirmationText: confirmationText, completion: completion, beforePresentationHandler: nil)
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}
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@objc
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public class func presentAlertIfNecessary(addresses: [SignalServiceAddress], confirmationText: String, completion: @escaping (Bool) -> Void, beforePresentationHandler: (() -> Void)? = nil) -> Bool {
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return SafetyNumberConfirmationAlert().presentIfNecessary(addresses: addresses,
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confirmationText: confirmationText,
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completion: completion,
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beforePresentationHandler: beforePresentationHandler)
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}
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/**
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* Shows confirmation dialog if at least one of the recipient id's is not confirmed.
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*
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* @returns true if an alert was shown
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* false if there were no unconfirmed identities
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*/
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public func presentIfNecessary(addresses: [SignalServiceAddress], confirmationText: String, completion: @escaping (Bool) -> Void, beforePresentationHandler: (() -> Void)? = nil) -> Bool {
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guard let (untrustedAddress, untrustedIdentity) = untrustedIdentityForSending(addresses: addresses) else {
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// No identities to confirm, no alert to present.
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return false
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}
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let displayName = contactsManager.displayName(for: untrustedAddress)
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let titleFormat = NSLocalizedString("CONFIRM_SENDING_TO_CHANGED_IDENTITY_TITLE_FORMAT",
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comment: "Action sheet title presented when a user's SN has recently changed. Embeds {{contact's name or phone number}}")
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let title = String(format: titleFormat, displayName)
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let bodyFormat = NSLocalizedString("CONFIRM_SENDING_TO_CHANGED_IDENTITY_BODY_FORMAT",
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comment: "Action sheet body presented when a user's SN has recently changed. Embeds {{contact's name or phone number}}")
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let body = String(format: bodyFormat, displayName)
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let actionSheet = ActionSheetController(title: title, message: body)
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let confirmAction = ActionSheetAction(title: confirmationText, style: .default) { _ in
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Logger.info("Confirmed identity: \(untrustedIdentity)")
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self.databaseStorage.asyncWrite { (transaction) in
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OWSIdentityManager.shared().setVerificationState(.default, identityKey: untrustedIdentity.identityKey, address: untrustedAddress, isUserInitiatedChange: true, transaction: transaction)
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transaction.addAsyncCompletion {
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completion(true)
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}
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}
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}
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actionSheet.addAction(confirmAction)
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let showSafetyNumberAction = ActionSheetAction(title: NSLocalizedString("VERIFY_PRIVACY", comment: "Label for button or row which allows users to verify the safety number of another user."), style: .default) { _ in
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Logger.info("Opted to show Safety Number for identity: \(untrustedIdentity)")
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self.presentSafetyNumberViewController(theirIdentityKey: untrustedIdentity.identityKey,
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theirRecipientAddress: untrustedAddress,
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theirDisplayName: displayName,
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completion: { completion(false) })
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}
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actionSheet.addAction(showSafetyNumberAction)
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// We can't use the default `OWSAlerts.cancelAction` because we need to specify that the completion
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// handler is called.
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let cancelAction = ActionSheetAction(title: CommonStrings.cancelButton, style: .cancel) { _ in
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Logger.info("user canceled.")
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completion(false)
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}
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actionSheet.addAction(cancelAction)
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beforePresentationHandler?()
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UIApplication.shared.frontmostViewController?.presentActionSheet(actionSheet)
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return true
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}
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public func presentSafetyNumberViewController(theirIdentityKey: Data, theirRecipientAddress: SignalServiceAddress, theirDisplayName: String, completion: (() -> Void)? = nil) {
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guard let fromViewController = UIApplication.shared.frontmostViewController else {
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Logger.info("Missing frontmostViewController")
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return
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}
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FingerprintViewController.present(from: fromViewController, address: theirRecipientAddress)
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}
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private func untrustedIdentityForSending(addresses: [SignalServiceAddress]) -> (SignalServiceAddress, OWSRecipientIdentity)? {
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return addresses.compactMap {
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guard let identity = OWSIdentityManager.shared().untrustedIdentityForSending(to: $0) else {
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return nil
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}
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return ($0, identity)
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}.first
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}
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}
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