145 lines
5.9 KiB
Swift
145 lines
5.9 KiB
Swift
import SwiftUI
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import CoreImage.CIFilterBuiltins
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struct SafetyNumberView: View {
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let peerUserId: String
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let peerUsername: String
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var chatClient: ChatClient
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@State private var vm = VerificationVM()
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@State private var showQRScanner = false
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var body: some View {
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ScrollView {
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VStack(spacing: 24) {
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// Verification status badge
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VerificationStatusView(status: vm.verificationStatus)
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.padding(.top)
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// Safety number
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if let safetyNumber = vm.safetyNumber {
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VStack(spacing: 8) {
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Text("Safety Number")
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.font(.headline)
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Text("If both you and \(peerUsername) see the same number, your communication is secure.")
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.font(.caption)
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.foregroundStyle(.secondary)
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.multilineTextAlignment(.center)
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.padding(.horizontal)
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Text(safetyNumber)
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.font(.system(.title2, design: .monospaced))
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.padding()
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.background(.quaternary)
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.clipShape(RoundedRectangle(cornerRadius: 12))
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}
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}
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// QR Code
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if let qrData = vm.qrCodeData {
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VStack(spacing: 8) {
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Text("Your QR Code")
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.font(.headline)
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if let qrImage = generateQRCode(from: qrData) {
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Image(uiImage: qrImage)
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.interpolation(.none)
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.resizable()
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.scaledToFit()
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.frame(width: 200, height: 200)
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.padding()
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.background(.white)
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.clipShape(RoundedRectangle(cornerRadius: 12))
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}
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}
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}
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// Fingerprints
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VStack(spacing: 12) {
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if let myFP = vm.myFingerprint {
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VStack(spacing: 4) {
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Text("Your Fingerprint")
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.font(.subheadline.bold())
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Text(myFP)
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.font(.system(.caption, design: .monospaced))
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}
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}
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if let peerFP = vm.peerFingerprint {
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VStack(spacing: 4) {
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Text("\(peerUsername)'s Fingerprint")
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.font(.subheadline.bold())
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Text(peerFP)
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.font(.system(.caption, design: .monospaced))
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}
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}
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}
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// Actions
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VStack(spacing: 12) {
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if vm.verificationStatus != "verified" {
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Button {
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Task { await vm.verifyContact(peerUserId: peerUserId, chatClient: chatClient) }
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} label: {
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Label("Mark as Verified", systemImage: "checkmark.shield.fill")
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.frame(maxWidth: .infinity)
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}
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.buttonStyle(.borderedProminent)
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Button {
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showQRScanner = true
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} label: {
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Label("Scan QR Code", systemImage: "qrcode.viewfinder")
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.frame(maxWidth: .infinity)
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}
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.buttonStyle(.bordered)
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} else {
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Button(role: .destructive) {
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Task { await vm.unverifyContact(peerUserId: peerUserId, chatClient: chatClient) }
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} label: {
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Label("Remove Verification", systemImage: "xmark.shield")
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.frame(maxWidth: .infinity)
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}
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.buttonStyle(.bordered)
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}
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}
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.padding(.horizontal)
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// Scan result
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if let result = vm.scanResult {
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Text(result)
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.font(.callout)
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.foregroundStyle(vm.scanSuccess == true ? .green : .red)
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.padding()
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}
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}
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.padding()
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}
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.navigationTitle("Verify \(peerUsername)")
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.navigationBarTitleDisplayMode(.inline)
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.sheet(isPresented: $showQRScanner) {
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QRCodeScannerView { scannedData in
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showQRScanner = false
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Task { await vm.verifyQRCode(data: scannedData, chatClient: chatClient) }
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}
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}
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.task {
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await vm.loadVerification(peerUserId: peerUserId, chatClient: chatClient)
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}
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}
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private func generateQRCode(from data: Data) -> UIImage? {
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let context = CIContext()
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let filter = CIFilter.qrCodeGenerator()
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// Base64-encode binary data — raw binary gets corrupted by QR readers (UTF-8 re-encoding)
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let b64String = data.base64EncodedString()
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filter.setValue(b64String.data(using: .ascii), forKey: "inputMessage")
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filter.setValue("M", forKey: "inputCorrectionLevel")
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guard let outputImage = filter.outputImage else { return nil }
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let scale = 200.0 / outputImage.extent.width
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let scaledImage = outputImage.transformed(by: CGAffineTransform(scaleX: scale, y: scale))
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guard let cgImage = context.createCGImage(scaledImage, from: scaledImage.extent) else { return nil }
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return UIImage(cgImage: cgImage)
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}
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}
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