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https://github.com/simplex-chat/simplex-chat.git
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Narasimha-sc
eb6d8768eb
When a scanner is shown a QR code of a different kind than it expects, it now tells the user what they actually scanned and where to scan it, instead of a generic "invalid" message. On parse failure each scanner falls back to a shared classifier (identifyQRCode / wrongQRCodeMessage) that tries the other known parsers — connection link, server address, migration link, desktop address — and shows "This is a X. To use it, ...", or the existing "not a SimpleX code" message when nothing matches. Each screen keeps its own parser and success path; only the failure branch changed. The wrong-type alert is presented through each view's own alert state so it shows within the scanner's presentation. Mirrored on Android, desktop and iOS. Plan: plans/2026-07-09-qr-recognise-wrong-type.md. Note: the iOS Swift was written without an Xcode toolchain and is not yet compiled — needs a Mac/CI build to verify.
61 lines
2.1 KiB
Swift
61 lines
2.1 KiB
Swift
//
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// ScanCodeView.swift
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// SimpleX (iOS)
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//
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// Created by Evgeny on 10/12/2022.
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// Copyright © 2022 SimpleX Chat. All rights reserved.
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//
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import SwiftUI
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import CodeScanner
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struct ScanCodeView: View {
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@Environment(\.dismiss) var dismiss: DismissAction
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@Binding var connectionVerified: Bool
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var verify: (String?) async -> (Bool, String)?
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@State private var scanAlert: SomeAlert?
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var body: some View {
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VStack(alignment: .leading) {
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CodeScannerView(codeTypes: [.qr], scanMode: .oncePerCode, completion: processQRCode)
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.aspectRatio(1, contentMode: .fit)
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.cornerRadius(12)
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Text("Scan security code from your contact's app.")
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.padding(.top)
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}
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.padding()
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top)
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.alert(item: $scanAlert) { $0.alert }
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .top)
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}
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func processQRCode(_ resp: Result<ScanResult, ScanError>) {
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switch resp {
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case let .success(r):
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Task {
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if let (ok, _) = await verify(r.string) {
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await MainActor.run {
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connectionVerified = ok
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if ok {
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dismiss()
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} else if let msg = wrongQRCodeMessage(r.string, detectSecurityCode: false) {
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scanAlert = SomeAlert(alert: wrongQRCodeAlert(msg), id: "wrongQRCode")
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} else {
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scanAlert = SomeAlert(alert: Alert(title: Text("Incorrect security code!")), id: "incorrectCode")
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}
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}
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}
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}
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case let .failure(e):
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logger.error("ScanCodeView.processQRCode QR code error: \(e.localizedDescription)")
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dismiss()
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}
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}
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}
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struct ScanCodeView_Previews: PreviewProvider {
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static var previews: some View {
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ScanCodeView(connectionVerified: Binding.constant(true), verify: {_ in nil})
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}
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}
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