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Merge pull request #31 from maevsi/feat/app-tracking-transparency
feat: implement app tracking transparency
2 parents f2a615a + b25a17b commit 12eec81

5 files changed

Lines changed: 154 additions & 10 deletions

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‎vibetype.xcodeproj/project.pbxproj‎

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@@ -18,6 +18,7 @@
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595F23AF25CEFBFE0053416C /* WebView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 595F23A425CEFBFE0053416C /* WebView.swift */; };
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6BC0B4AB2ED94D4100E03379 /* README.md in Resources */ = {isa = PBXBuildFile; fileRef = 6BC0B4AA2ED94D3A00E03379 /* README.md */; };
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7692219AF6CB60CE94E971C2 /* Pods_vibetype.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 4248D6343DB1391C0EB00BB7 /* Pods_vibetype.framework */; };
21+
936658952F3085DF00CE9A4A /* TrackingTransparency.swift in Sources */ = {isa = PBXBuildFile; fileRef = 936658942F3085DF00CE9A4A /* TrackingTransparency.swift */; };
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CDC0FE292388222C002C8D56 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = CDC0FE252388222B002C8D56 /* Main.storyboard */; };
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CDC0FE2A2388222C002C8D56 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = CDC0FE272388222B002C8D56 /* LaunchScreen.storyboard */; };
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DDBCB1142D6C602600313680 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = DDBCB1132D6C602600313680 /* GoogleService-Info.plist */; };
@@ -37,6 +38,7 @@
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595F23A325CEFBFE0053416C /* Printer.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = Printer.swift; path = vibetype/Printer.swift; sourceTree = "<group>"; };
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595F23A425CEFBFE0053416C /* WebView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = WebView.swift; path = vibetype/WebView.swift; sourceTree = "<group>"; };
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6BC0B4AA2ED94D3A00E03379 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
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936658942F3085DF00CE9A4A /* TrackingTransparency.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = TrackingTransparency.swift; path = vibetype/TrackingTransparency.swift; sourceTree = "<group>"; };
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B3109B700B2E429F9589C698 /* Pods-vibetype.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-vibetype.release.xcconfig"; path = "Target Support Files/Pods-vibetype/Pods-vibetype.release.xcconfig"; sourceTree = "<group>"; };
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CDC0FE262388222B002C8D56 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = vibetype/Base.lproj/Main.storyboard; sourceTree = "<group>"; };
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CDC0FE282388222B002C8D56 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = vibetype/Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
@@ -80,6 +82,7 @@
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595F23A125CEFBFE0053416C /* ViewController.swift */,
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CDC0FE272388222B002C8D56 /* LaunchScreen.storyboard */,
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CDC0FE252388222B002C8D56 /* Main.storyboard */,
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936658942F3085DF00CE9A4A /* TrackingTransparency.swift */,
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595F23A425CEFBFE0053416C /* WebView.swift */,
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30FCACC6A7BF53CD6D9CF6C0 /* Pods */,
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59333BAA25CFF706003392A4 /* vibetype.app */,
@@ -200,10 +203,14 @@
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inputFileListPaths = (
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"${PODS_ROOT}/Target Support Files/Pods-vibetype/Pods-vibetype-frameworks-${CONFIGURATION}-input-files.xcfilelist",
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);
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inputPaths = (
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);
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name = "[CP] Embed Pods Frameworks";
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outputFileListPaths = (
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"${PODS_ROOT}/Target Support Files/Pods-vibetype/Pods-vibetype-frameworks-${CONFIGURATION}-output-files.xcfilelist",
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);
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outputPaths = (
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);
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runOnlyForDeploymentPostprocessing = 0;
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shellPath = /bin/sh;
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shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-vibetype/Pods-vibetype-frameworks.sh\"\n";
@@ -218,6 +225,7 @@
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files = (
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595F23AD25CEFBFE0053416C /* AppDelegate.swift in Sources */,
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595F23A825CEFBFE0053416C /* SceneDelegate.swift in Sources */,
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936658952F3085DF00CE9A4A /* TrackingTransparency.swift in Sources */,
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595F23A525CEFBFE0053416C /* Settings.swift in Sources */,
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595F23AE25CEFBFE0053416C /* Printer.swift in Sources */,
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595F23AC25CEFBFE0053416C /* ViewController.swift in Sources */,

‎vibetype/Info.plist‎

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@@ -52,6 +52,8 @@
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<string>The app allows taking photos of event posters to show interest in the listed events.</string>
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<key>NSLocationWhenInUseUsageDescription</key>
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<string>The app allows accessing your location to provide event recommendations based on your area.</string>
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<key>NSUserTrackingUsageDescription</key>
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<string>Your device's advertising identifier will be used by Google Analytics to measure and analyze app usage across apps and websites, helping us understand how our service is being used and improve it for all users.</string>
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<!-- <key>NSMicrophoneUsageDescription</key>
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<string>Capture Audio by user request</string> -->
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<key>UIApplicationSceneManifest</key>

‎vibetype/TrackingTransparency.swift‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,59 @@
1+
import Foundation
2+
import AppTrackingTransparency
3+
import AdSupport
4+
5+
@available(iOS 14, *)
6+
class TrackingTransparencyManager {
7+
8+
// Request ATT permission and return the result via callback
9+
static func requestPermission(completion: @escaping (ATTrackingManager.AuthorizationStatus) -> Void) {
10+
ATTrackingManager.requestTrackingAuthorization { status in
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DispatchQueue.main.async {
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completion(status)
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}
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}
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}
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// Get current tracking authorization status
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static func getStatus() -> ATTrackingManager.AuthorizationStatus {
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return ATTrackingManager.trackingAuthorizationStatus
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}
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// Get status as a string representation for JavaScript
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static func getStatusString() -> String {
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return statusToString(getStatus())
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}
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27+
// Convert status to string
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static func statusToString(_ status: ATTrackingManager.AuthorizationStatus) -> String {
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switch status {
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case .notDetermined:
31+
return "notDetermined"
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case .restricted:
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return "restricted"
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case .denied:
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return "denied"
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case .authorized:
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return "authorized"
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@unknown default:
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return "unknown"
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}
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}
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43+
// Get IDFA (Identifier for Advertisers) if authorized
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static func getIDFA() -> String? {
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guard getStatus() == .authorized else {
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return nil
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}
48+
49+
let idfa = ASIdentifierManager.shared().advertisingIdentifier
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51+
// Apple returns all zeros when tracking is not authorized
52+
let zeroIDFA = UUID(uuidString: "00000000-0000-0000-0000-000000000000")!
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guard idfa != zeroIDFA else {
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return nil
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}
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return idfa.uuidString
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}
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}

‎vibetype/ViewController.swift‎

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@@ -231,20 +231,79 @@ extension UIColor {
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232232
extension ViewController: WKScriptMessageHandler {
233233
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
234+
if message.name == "att-get-idfa" {
235+
handleATTGetIDFA()
236+
}
237+
if message.name == "att-get-status" {
238+
handleATTGetStatus()
239+
}
240+
if message.name == "att-request-permission" {
241+
handleATTPermissionRequest()
242+
}
234243
if message.name == "print" {
235244
printView(webView: vibetype.webView)
236245
}
237-
if message.name == "push-subscribe" {
238-
handleSubscribeTouch(message: message)
239-
}
240246
if message.name == "push-permission-request" {
241247
handlePushPermission()
242248
}
243249
if message.name == "push-permission-state" {
244250
handlePushState()
245251
}
252+
if message.name == "push-subscribe" {
253+
handleSubscribeTouch(message: message)
254+
}
246255
if message.name == "push-token" {
247256
handleFCMToken()
248257
}
249258
}
250259
}
260+
261+
// MARK: - App Tracking Transparency Handlers
262+
extension ViewController {
263+
264+
private func dispatchATTEvent(eventName: String, detail: String) {
265+
func toJsonString(_ value: String) -> String? {
266+
guard let data = try? JSONSerialization.data(withJSONObject: [value]),
267+
let json = String(data: data, encoding: .utf8) else { return nil }
268+
return String(json.dropFirst().dropLast()) // strip wrapping [ and ]
269+
}
270+
guard let detailJson = toJsonString(detail),
271+
let eventNameJson = toJsonString(eventName) else {
272+
print("Error encoding ATT event data for: \(eventName)")
273+
return
274+
}
275+
let script = "window.dispatchEvent(new CustomEvent(\(eventNameJson), { detail: \(detailJson) }));"
276+
vibetype.webView.evaluateJavaScript(script) { _, error in
277+
if let error = error {
278+
print("Error dispatching \(eventName): \(error)")
279+
}
280+
}
281+
}
282+
283+
func handleATTPermissionRequest() {
284+
if #available(iOS 14, *) {
285+
TrackingTransparencyManager.requestPermission { [weak self] status in
286+
guard let self else { return }
287+
self.dispatchATTEvent(eventName: "att-permission-response", detail: TrackingTransparencyManager.statusToString(status))
288+
}
289+
} else {
290+
dispatchATTEvent(eventName: "att-permission-response", detail: "unavailable")
291+
}
292+
}
293+
294+
func handleATTGetStatus() {
295+
if #available(iOS 14, *) {
296+
dispatchATTEvent(eventName: "att-status-response", detail: TrackingTransparencyManager.getStatusString())
297+
} else {
298+
dispatchATTEvent(eventName: "att-status-response", detail: "unavailable")
299+
}
300+
}
301+
302+
func handleATTGetIDFA() {
303+
if #available(iOS 14, *) {
304+
dispatchATTEvent(eventName: "att-idfa-response", detail: TrackingTransparencyManager.getIDFA() ?? "")
305+
} else {
306+
dispatchATTEvent(eventName: "att-idfa-response", detail: "")
307+
}
308+
}
309+
}

‎vibetype/WebView.swift‎

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@@ -3,19 +3,35 @@ import WebKit
33
import AuthenticationServices
44
import SafariServices
55

6+
final class WeakScriptMessageHandler: NSObject, WKScriptMessageHandler {
7+
private weak var delegate: AnyObject?
68

7-
func createWebView(container: UIView, WKSMH: WKScriptMessageHandler, WKND: WKNavigationDelegate, NSO: NSObject, VC: ViewController) -> WKWebView{
9+
init(delegate: AnyObject & WKScriptMessageHandler) {
10+
self.delegate = delegate
11+
super.init()
12+
}
13+
14+
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
15+
(delegate as? WKScriptMessageHandler)?.userContentController(userContentController, didReceive: message)
16+
}
17+
}
18+
19+
func createWebView(container: UIView, WKSMH: AnyObject & WKScriptMessageHandler, WKND: WKNavigationDelegate, NSO: NSObject, VC: ViewController) -> WKWebView{
820

921
let config = WKWebViewConfiguration()
1022
let userContentController = WKUserContentController()
1123
let deviceModel = UIDevice.current.model
1224
let osVersion = ProcessInfo().operatingSystemVersion
13-
14-
userContentController.add(WKSMH, name: "print")
15-
userContentController.add(WKSMH, name: "push-subscribe")
16-
userContentController.add(WKSMH, name: "push-permission-request")
17-
userContentController.add(WKSMH, name: "push-permission-state")
18-
userContentController.add(WKSMH, name: "push-token")
25+
let weakHandler = WeakScriptMessageHandler(delegate: WKSMH)
26+
27+
userContentController.add(weakHandler, name: "att-get-idfa")
28+
userContentController.add(weakHandler, name: "att-get-status")
29+
userContentController.add(weakHandler, name: "att-request-permission")
30+
userContentController.add(weakHandler, name: "print")
31+
userContentController.add(weakHandler, name: "push-permission-request")
32+
userContentController.add(weakHandler, name: "push-permission-state")
33+
userContentController.add(weakHandler, name: "push-subscribe")
34+
userContentController.add(weakHandler, name: "push-token")
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2036
config.userContentController = userContentController
2137

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