101 lines
3.9 KiB
Swift
101 lines
3.9 KiB
Swift
//
|
|
// Copyright 2016 Signal Messenger, LLC
|
|
// SPDX-License-Identifier: AGPL-3.0-only
|
|
//
|
|
|
|
import SignalServiceKit
|
|
import UIKit
|
|
|
|
let CompareSafetyNumbersActivityType = "org.whispersystems.signal.activity.CompareSafetyNumbers"
|
|
|
|
public protocol CompareSafetyNumbersActivityDelegate: AnyObject {
|
|
func compareSafetyNumbersActivitySucceeded(activity: CompareSafetyNumbersActivity)
|
|
func compareSafetyNumbersActivity(_ activity: CompareSafetyNumbersActivity, failedWithError error: Error)
|
|
}
|
|
|
|
public class CompareSafetyNumbersActivity: UIActivity {
|
|
|
|
var mySafetyNumbers: String?
|
|
weak var delegate: CompareSafetyNumbersActivityDelegate?
|
|
|
|
init(delegate: CompareSafetyNumbersActivityDelegate) {
|
|
self.delegate = delegate
|
|
super.init()
|
|
}
|
|
|
|
// MARK: UIActivity
|
|
|
|
public override class var activityCategory: UIActivity.Category { .action }
|
|
|
|
public override var activityType: UIActivity.ActivityType? {
|
|
UIActivity.ActivityType(rawValue: CompareSafetyNumbersActivityType)
|
|
}
|
|
|
|
public override var activityTitle: String? {
|
|
OWSLocalizedString("COMPARE_SAFETY_NUMBER_ACTION", comment: "Activity Sheet label")
|
|
}
|
|
|
|
public override var activityImage: UIImage? { UIImage(imageLiteralResourceName: "lock") }
|
|
|
|
public override func canPerform(withActivityItems activityItems: [Any]) -> Bool {
|
|
return stringsFrom(activityItems: activityItems).count > 0
|
|
}
|
|
|
|
public override func prepare(withActivityItems activityItems: [Any]) {
|
|
let myFormattedSafetyNumbers = stringsFrom(activityItems: activityItems).first
|
|
mySafetyNumbers = numericOnly(string: myFormattedSafetyNumbers)
|
|
}
|
|
|
|
public override func perform() {
|
|
defer { activityDidFinish(true) }
|
|
|
|
guard let delegate = delegate else {
|
|
owsFailDebug("Missing delegate.")
|
|
return
|
|
}
|
|
|
|
let pasteboardNumerics = numericOnly(string: UIPasteboard.general.string)
|
|
guard let pasteboardString = pasteboardNumerics,
|
|
pasteboardString.count == 60 else {
|
|
Logger.warn("no valid safety numbers found in pasteboard: \(String(describing: pasteboardNumerics))")
|
|
let error = OWSError(error: .userError,
|
|
description: OWSLocalizedString("PRIVACY_VERIFICATION_FAILED_NO_SAFETY_NUMBERS_IN_CLIPBOARD", comment: "Alert body for user error"),
|
|
isRetryable: false)
|
|
|
|
delegate.compareSafetyNumbersActivity(self, failedWithError: error)
|
|
return
|
|
}
|
|
|
|
let pasteboardSafetyNumbers = pasteboardString
|
|
|
|
if pasteboardSafetyNumbers == mySafetyNumbers {
|
|
Logger.info("successfully matched safety numbers. local numbers: \(String(describing: mySafetyNumbers)) pasteboard:\(pasteboardSafetyNumbers)")
|
|
delegate.compareSafetyNumbersActivitySucceeded(activity: self)
|
|
} else {
|
|
Logger.warn("local numbers: \(String(describing: mySafetyNumbers)) didn't match pasteboard:\(pasteboardSafetyNumbers)")
|
|
let error = OWSError(error: .privacyVerificationFailure,
|
|
description: OWSLocalizedString("PRIVACY_VERIFICATION_FAILED_MISMATCHED_SAFETY_NUMBERS_IN_CLIPBOARD", comment: "Alert body"),
|
|
isRetryable: false)
|
|
delegate.compareSafetyNumbersActivity(self, failedWithError: error)
|
|
}
|
|
}
|
|
|
|
// MARK: Helpers
|
|
|
|
func numericOnly(string: String?) -> String? {
|
|
guard let string = string else {
|
|
return nil
|
|
}
|
|
|
|
var numericOnly: String?
|
|
if let regex = try? NSRegularExpression(pattern: "\\D", options: .caseInsensitive) {
|
|
numericOnly = regex.stringByReplacingMatches(in: string, options: .withTransparentBounds, range: string.entireRange, withTemplate: "")
|
|
}
|
|
|
|
return numericOnly
|
|
}
|
|
|
|
func stringsFrom(activityItems: [Any]) -> [String] {
|
|
return activityItems.map { $0 as? String }.filter { $0 != nil }.map { $0! }
|
|
}
|
|
}
|