Sync push

.gitignore

@@ -0,0 +1,2 @@
+
+.DS_Store

FlurSchnaps.xcodeproj/project.pbxproj

@@ -8,11 +8,11 @@
 
 /* Begin PBXBuildFile section */
 		881E0B26284B74E200435EC2 /* Data+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 881E0B25284B74E200435EC2 /* Data+Extensions.swift */; };
-		88DBE72A284B989C00D1573B /* DeviceList.swift in Sources */ = {isa = PBXBuildFile; fileRef = 88DBE729284B989C00D1573B /* DeviceList.swift */; };
+		88F92BA928C67EEB0078BEC4 /* TokenUpload.swift in Sources */ = {isa = PBXBuildFile; fileRef = 88F92BA828C67EEB0078BEC4 /* TokenUpload.swift */; };
+		88F92BAC28C67F8B0078BEC4 /* BinaryCodable in Frameworks */ = {isa = PBXBuildFile; productRef = 88F92BAB28C67F8B0078BEC4 /* BinaryCodable */; };
 		E234995C284E1D02002B55F8 /* SFSafeSymbols in Frameworks */ = {isa = PBXBuildFile; productRef = E234995B284E1D02002B55F8 /* SFSafeSymbols */; };
 		E234995F284E372B002B55F8 /* Localizable.strings in Resources */ = {isa = PBXBuildFile; fileRef = E2349961284E372B002B55F8 /* Localizable.strings */; };
 		E2349964284F3133002B55F8 /* TextEntryField.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2349963284F3133002B55F8 /* TextEntryField.swift */; };
-		E2349968284F78E3002B55F8 /* Push in Frameworks */ = {isa = PBXBuildFile; productRef = E2349967284F78E3002B55F8 /* Push */; };
 		E29A7E47284B6143000B908A /* FlurSchnapsApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = E29A7E46284B6143000B908A /* FlurSchnapsApp.swift */; };
 		E29A7E49284B6143000B908A /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E29A7E48284B6143000B908A /* ContentView.swift */; };
 		E29A7E4B284B6144000B908A /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = E29A7E4A284B6144000B908A /* Assets.xcassets */; };
@@ -23,7 +23,7 @@
 		881E0B25284B74E200435EC2 /* Data+Extensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Data+Extensions.swift"; sourceTree = "<group>"; };
 		88DBE727284B7EB200D1573B /* FlurSchnaps.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = FlurSchnaps.entitlements; sourceTree = "<group>"; };
 		88DBE728284B813500D1573B /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist; path = Info.plist; sourceTree = "<group>"; };
-		88DBE729284B989C00D1573B /* DeviceList.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeviceList.swift; sourceTree = "<group>"; };
+		88F92BA828C67EEB0078BEC4 /* TokenUpload.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TokenUpload.swift; sourceTree = "<group>"; };
 		E2349960284E372B002B55F8 /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/Localizable.strings; sourceTree = "<group>"; };
 		E2349962284E3733002B55F8 /* de */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = de; path = de.lproj/Localizable.strings; sourceTree = "<group>"; };
 		E2349963284F3133002B55F8 /* TextEntryField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextEntryField.swift; sourceTree = "<group>"; };
@@ -39,7 +39,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				E2349968284F78E3002B55F8 /* Push in Frameworks */,
+				88F92BAC28C67F8B0078BEC4 /* BinaryCodable in Frameworks */,
 				E234995C284E1D02002B55F8 /* SFSafeSymbols in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -72,10 +72,10 @@
 				E29A7E46284B6143000B908A /* FlurSchnapsApp.swift */,
 				E29A7E48284B6143000B908A /* ContentView.swift */,
 				E2349963284F3133002B55F8 /* TextEntryField.swift */,
-				88DBE729284B989C00D1573B /* DeviceList.swift */,
 				881E0B25284B74E200435EC2 /* Data+Extensions.swift */,
 				E29A7E4A284B6144000B908A /* Assets.xcassets */,
 				E29A7E4C284B6144000B908A /* Preview Content */,
+				88F92BA828C67EEB0078BEC4 /* TokenUpload.swift */,
 			);
 			path = FlurSchnaps;
 			sourceTree = "<group>";
@@ -106,7 +106,7 @@
 			name = FlurSchnaps;
 			packageProductDependencies = (
 				E234995B284E1D02002B55F8 /* SFSafeSymbols */,
-				E2349967284F78E3002B55F8 /* Push */,
+				88F92BAB28C67F8B0078BEC4 /* BinaryCodable */,
 			);
 			productName = FlurSchnaps;
 			productReference = E29A7E43284B6143000B908A /* FlurSchnaps.app */;
@@ -139,7 +139,7 @@
 			mainGroup = E29A7E3A284B6143000B908A;
 			packageReferences = (
 				E234995A284E1D02002B55F8 /* XCRemoteSwiftPackageReference "SFSafeSymbols" */,
-				E2349966284F78E3002B55F8 /* XCRemoteSwiftPackageReference "Push-iOS" */,
+				88F92BAA28C67F8B0078BEC4 /* XCRemoteSwiftPackageReference "BinaryCodable" */,
 			);
 			productRefGroup = E29A7E44284B6143000B908A /* Products */;
 			projectDirPath = "";
@@ -171,8 +171,8 @@
 				E2349964284F3133002B55F8 /* TextEntryField.swift in Sources */,
 				E29A7E49284B6143000B908A /* ContentView.swift in Sources */,
 				881E0B26284B74E200435EC2 /* Data+Extensions.swift in Sources */,
-				88DBE72A284B989C00D1573B /* DeviceList.swift in Sources */,
 				E29A7E47284B6143000B908A /* FlurSchnapsApp.swift in Sources */,
+				88F92BA928C67EEB0078BEC4 /* TokenUpload.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -395,6 +395,14 @@
 /* End XCConfigurationList section */
 
 /* Begin XCRemoteSwiftPackageReference section */
+		88F92BAA28C67F8B0078BEC4 /* XCRemoteSwiftPackageReference "BinaryCodable" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/christophhagen/BinaryCodable";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 1.0.0;
+			};
+		};
 		E234995A284E1D02002B55F8 /* XCRemoteSwiftPackageReference "SFSafeSymbols" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/SFSafeSymbols/SFSafeSymbols";
@@ -403,27 +411,19 @@
 				minimumVersion = 3.0.0;
 			};
 		};
-		E2349966284F78E3002B55F8 /* XCRemoteSwiftPackageReference "Push-iOS" */ = {
-			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "https://christophhagen.de/git/ch/Push-iOS";
-			requirement = {
-				kind = upToNextMajorVersion;
-				minimumVersion = 0.2.0;
-			};
-		};
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
+		88F92BAB28C67F8B0078BEC4 /* BinaryCodable */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 88F92BAA28C67F8B0078BEC4 /* XCRemoteSwiftPackageReference "BinaryCodable" */;
+			productName = BinaryCodable;
+		};
 		E234995B284E1D02002B55F8 /* SFSafeSymbols */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = E234995A284E1D02002B55F8 /* XCRemoteSwiftPackageReference "SFSafeSymbols" */;
 			productName = SFSafeSymbols;
 		};
-		E2349967284F78E3002B55F8 /* Push */ = {
-			isa = XCSwiftPackageProductDependency;
-			package = E2349966284F78E3002B55F8 /* XCRemoteSwiftPackageReference "Push-iOS" */;
-			productName = Push;
-		};
 /* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = E29A7E3B284B6143000B908A /* Project object */;

FlurSchnaps.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -1,39 +1,12 @@
 {
   "pins" : [
     {
-      "identity" : "apnswift",
+      "identity" : "binarycodable",
       "kind" : "remoteSourceControl",
-      "location" : "https://github.com/swift-server-community/APNSwift.git",
+      "location" : "https://github.com/christophhagen/BinaryCodable",
       "state" : {
-        "revision" : "99a3c7bb5fd211009438fb386d18c94bb2f63b17",
+        "revision" : "2049887d460c0101e69922271a54a567dbf31e2c",
-        "version" : "4.0.0"
+        "version" : "1.2.2"
-      }
-    },
-    {
-      "identity" : "jwt-kit",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/vapor/jwt-kit.git",
-      "state" : {
-        "revision" : "3537dd319dfbcc403a5165d8c19c4834e8e64730",
-        "version" : "4.5.0"
-      }
-    },
-    {
-      "identity" : "push-definitions",
-      "kind" : "remoteSourceControl",
-      "location" : "https://christophhagen.de/git/ch/Push-Definitions.git",
-      "state" : {
-        "revision" : "3a4e93889b0cb5f500eeccd7ba2a099d0f3862f0",
-        "version" : "1.0.1"
-      }
-    },
-    {
-      "identity" : "push-ios",
-      "kind" : "remoteSourceControl",
-      "location" : "https://christophhagen.de/git/ch/Push-iOS",
-      "state" : {
-        "revision" : "1131cb17c6114a0b41263be1b5788188548adc41",
-        "version" : "0.3.0"
       }
     },
     {
@@ -44,51 +17,6 @@
         "revision" : "c8c33d947d8a1c883aa19fd24e14fd738b06e369",
         "version" : "3.3.2"
       }
-    },
-    {
-      "identity" : "swift-crypto",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-crypto.git",
-      "state" : {
-        "revision" : "d9825fa541df64b1a7b182178d61b9a82730d01f",
-        "version" : "2.1.0"
-      }
-    },
-    {
-      "identity" : "swift-log",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-log.git",
-      "state" : {
-        "revision" : "5d66f7ba25daf4f94100e7022febf3c75e37a6c7",
-        "version" : "1.4.2"
-      }
-    },
-    {
-      "identity" : "swift-nio",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-nio.git",
-      "state" : {
-        "revision" : "124119f0bb12384cef35aa041d7c3a686108722d",
-        "version" : "2.40.0"
-      }
-    },
-    {
-      "identity" : "swift-nio-http2",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-nio-http2.git",
-      "state" : {
-        "revision" : "72bcaf607b40d7c51044f65b0f5ed8581a911832",
-        "version" : "1.21.0"
-      }
-    },
-    {
-      "identity" : "swift-nio-ssl",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-nio-ssl.git",
-      "state" : {
-        "revision" : "1750873bce84b4129b5303655cce2c3d35b9ed3a",
-        "version" : "2.19.0"
-      }
     }
   ],
   "version" : 2

FlurSchnaps/ContentView.swift

@@ -1,62 +1,19 @@
 import SwiftUI
-import APNSwift
-import Push
-import PushMessageDefinitions
 import SFSafeSymbols
+import UniformTypeIdentifiers
 
 struct ContentView: View {
     
     @AppStorage("pushToken")
-    var pushToken: PushToken?
+    var pushToken: String?
 
     var hasPushToken: Bool {
         pushToken != nil
     }
 
-    @AppStorage("authToken")
-    var authToken: AuthenticationToken?
-    
-    @State
-    var isConfirmed = false
-
     @State
     var hasNotificationPermissions: Bool? = nil
 
-    @State
-    var showDeviceList = false
-
-    @State
-    var api: PushClient?
-
-    @AppStorage("server")
-    var server: String = ""
-
-    @AppStorage("application")
-    var application = ""
-
-    @AppStorage("deviceName")
-    var deviceName: String = ""
-
-    @State
-    var deviceList: [DeviceRegistration] = []
-
-    var couldBeRegistered: Bool {
-        pushToken != nil && authToken != nil
-    }
-
-    @AppStorage("pushTitle")
-    var pushMessageTitle: String = ""
-
-    @AppStorage("pushBody")
-    var pushMessageText: String = ""
-
-    @State
-    var includeOwnDeviceInPush = false
-
-    var canSendNotification: Bool {
-        isConfirmed && (includeOwnDeviceInPush || deviceList.count > 1)
-    }
-
     func statusView(_ state: Bool?) -> some View {
         let symbol: SFSymbol
         let color: Color
@@ -95,6 +52,16 @@ struct ContentView: View {
         }
     }
     
+    @State
+    private var didTapText = false
+    
+    var tapFootnote: String {
+        if didTapText {
+            return "Copied to clipboard"
+        }
+        return "Double tap to copy token"
+    }
+    
     var body: some View {
         NavigationView {
             VStack(spacing: 8) {
@@ -106,21 +73,23 @@ struct ContentView: View {
                     statusView(hasNotificationPermissions)
                     Text("notification-permissions-title")
                 }
-                HStack {
+                Spacer()
-                    statusView(authToken != nil)
+                if let token = pushToken {
-                    Text("push-server-registration-title")
+                    Text("push-token-title")
-                }
+                    Text(token)
-                HStack {
+                        .font(.body.monospaced())
-                    statusView(deviceList.count > 1)
+                        .padding()
-                    Text("other-devices-title")
+                        .onTapGesture(count: 2, perform: didDoubleTapToken)
-                }
+                    Text(tapFootnote)
-                if pushToken == nil {
+                        .font(.footnote)
+                } else {
                     Text("register-for-remote-notifications-text")
                         .padding()
                         .multilineTextAlignment(.center)
                     Button("register-for-remote-notifications-button", action: registerForRemoteNotifications)
                         .padding()
-                } else if hasNotificationPermissions == nil {
+                }
+                if hasNotificationPermissions == nil {
                     Button("request-notification-permission-button", action: requestNotificationPermission)
                         .padding()
                 } else if hasNotificationPermissions == false {
@@ -129,71 +98,27 @@ struct ContentView: View {
                         .multilineTextAlignment(.center)
                     Button("no-notification-permissions-button", action: openNotificationSettings)
                         .padding()
-                } else if authToken == nil {
-                    Text("register-device-text")
-                        .padding()
-                    TextEntryField("Server url", placeholder: "register-device-server-placeholder", symbol: .network, showClearButton: true, text: $server)
-                        .padding(.horizontal, 50)
-                        .padding(.top)
-                    TextEntryField("Application", placeholder: "register-device-application-placeholder", symbol: .questionmarkApp, showClearButton: true, text: $application)
-                        .padding(.horizontal, 50)
-                        .padding(.top)
-                    TextEntryField("Device name", placeholder: "register-device-name-placeholder", symbol: .iphone, text: $deviceName)
-                        .padding(.horizontal, 50)
-                        .padding(.top)
-                    Button("register-device-button", action: register)
-                        .disabled(pushToken == nil || authToken != nil || deviceName.isEmpty)
-                        .padding()
-                } else {
-                    Text("push-message-description")
-                        .padding()
-                    TextEntryField("Push title", placeholder: "push-message-title-placeholder", symbol: .bubbleLeft, showClearButton: true, text: $pushMessageTitle)
-                        .padding(.horizontal, 50)
-                        .disabled(!isConfirmed)
-                    TextEntryField("Push text", placeholder: "push-message-placeholder", symbol: .textformat, showClearButton: true, text: $pushMessageText)
-                        .padding(.horizontal, 50)
-                        .disabled(!isConfirmed)
-                    Toggle("toggle-include-own-device-text", isOn: $includeOwnDeviceInPush)
-                        .padding(.horizontal, 50)
-                        .padding(.top)
-                    Button("send-notification-button", action: sendPush)
-                        .disabled(!canSendNotification)
-                        .padding()
-                    Button("show-device-list-button", action: showDevices)
-                        .disabled(!isConfirmed)
-                        .padding()
                 }
                 Spacer()
             }
             .navigationTitle("FlurSchnaps")
         }
-        .sheet(isPresented: $showDeviceList) {
+        .onAppear {
-            if let push = pushToken, let auth = authToken, let api = api {
-                DeviceList(pushToken: push,
-                           authToken: auth,
-                           api: api,
-                           isPresented: $showDeviceList,
-                           devices: deviceList)
-            }
-        }.onAppear {
             startPeriodicUpdates()
-            if server == "" {
-                server = "https://christophhagen.de/push"
-            }
-            if application == "" {
-                application = "FlurSchnaps"
-            }
-            if pushMessageTitle == "" {
-                pushMessageTitle = "Flur-Schnaps"
-            }
-            if pushMessageText == "" {
-                pushMessageText = "Du hast 30 Sekunden, um im Flur zu erscheinen"
-            }
         }.onDisappear {
             stopPeriodicUpdates()
         }
     }
     
+    private func didDoubleTapToken() {
+        UIPasteboard.general
+            .setValue(pushToken!, forPasteboardType: UTType.plainText.identifier)
+        didTapText = true
+        DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(3)) {
+            self.didTapText = false
+        }
+    }
+
     @State
     private var timer: Timer?
 
@@ -214,11 +139,6 @@ struct ContentView: View {
     
     private func updateState() {
         updateNotificationPermissionState()
-        if isConfirmed {
-            updateDeviceList()
-        } else if couldBeRegistered {
-            checkPushRegistrationStatus()
-        }
     }
 
     func registerForRemoteNotifications() {
@@ -239,108 +159,6 @@ struct ContentView: View {
             UIApplication.shared.open(appSettings)
         }
     }
-
-    func register() {
-        guard let token = pushToken else {
-            print("No token to register")
-            return
-        }
-        guard let url = URL(string: server) else {
-            return
-        }
-        let api = PushClient(server: url, application: application)
-        self.api = api
-        let name = deviceName
-        Task {
-            print("Registering...")
-            guard let auth = await api.register(token: token, name: name) else {
-                DispatchQueue.main.async {
-                    authToken = nil
-                    isConfirmed = false
-                }
-                return
-            }
-            print("Registered")
-            DispatchQueue.main.async {
-                authToken = auth
-                isConfirmed = false
-                updateDeviceList()
-            }
-        }
-    }
-    
-    func checkPushRegistrationStatus() {
-        guard let token = pushToken,
-              let authToken = authToken,
-              let api = api else {
-            return
-        }
-        Task {
-            let confirmed = await api.isConfirmed(token: token, authentication: authToken)
-            if !confirmed {
-                print(token.base64EncodedString())
-                print(authToken.base64EncodedString())
-            }
-            DispatchQueue.main.async {
-                isConfirmed = confirmed
-            }
-        }
-    }
-
-    func updateDeviceList() {
-        guard let authToken = authToken,
-              let pushToken = pushToken,
-              let api = api else {
-            return
-        }
-        Task {
-            let devices = await api.getDeviceList(pushToken: pushToken, authToken: authToken)
-            DispatchQueue.main.async {
-                self.deviceList = devices ?? []
-            }
-        }
-    }
-    
-    func showDevices() {
-        showDeviceList = true
-    }
-    
-    func sendPush() {
-        guard let authToken = authToken,
-              let pushToken = pushToken,
-              let api = api else {
-            return
-        }
-
-        var recipients = deviceList.map { $0.pushToken }
-        guard recipients.count > 0 else {
-            return
-        }
-        if !includeOwnDeviceInPush {
-            recipients = recipients.filter { $0 != pushToken }
-        }
-        let body = pushMessageText
-        let alert = APNSwiftAlert(
-            title: pushMessageTitle,
-            body: body)
-        let payload = APNSwiftPayload(
-            alert: alert,
-            sound: .normal("default"))
-        let content = PushMessage(
-            recipients: recipients,
-            payload: payload,
-            pushType: .alert)
-        let sender = DeviceAuthentication(
-            pushToken: pushToken,
-            authentication: authToken)
-        let message = AuthenticatedPushMessage(
-            sender: sender,
-            message: content)
-        Task {
-            let sent = await api.send(push: message)
-            print("Sent push message: \(sent)")
-        }
-    }
 }
 
 struct ContentView_Previews: PreviewProvider {

FlurSchnaps/DeviceList.swift

@@ -1,91 +0,0 @@
-import SwiftUI
-import PushMessageDefinitions
-import Push
-
-extension String {
-
-    var nonEmpty: String? {
-        isEmpty ? nil : self
-    }
-}
-
-struct DeviceList: View {
-
-    let pushToken: PushToken
-
-    let authToken: AuthenticationToken
-
-    let api: PushClient
-    
-    @Binding
-    var isPresented: Bool
-    
-    @State
-    var devices: [DeviceRegistration]
-    
-    var body: some View {
-        NavigationView {
-            VStack(spacing: 0) {
-                List(devices) { device in
-                    HStack {
-                        Text(device.name.nonEmpty ?? "Device")
-                            .font(.headline)
-                        Spacer()
-                        VStack(alignment: .leading) {
-                            Text(device.application)
-                                .font(.footnote)
-                                .fontWeight(.bold)
-                                .padding(.bottom, 2)
-                            Text(device.pushToken.prefix(5).hexEncoded + "...")
-                                .font(.caption)
-                        }
-                    }
-                }.refreshable {
-                    await updateList()
-                }
-            }.toolbar {
-                ToolbarItem(placement: .navigationBarTrailing) {
-                    Button(action: dismiss) {
-                        Text("Cancel")
-                    }
-                }
-            }.navigationBarTitle("device-list-title")
-        }.onAppear() {
-            Task {
-                await updateList()
-            }
-        }
-    }
-    
-    private func updateList() async {
-        let devices = await api.getDeviceList(pushToken: pushToken, authToken: authToken)
-        print("Updated device list: \(devices?.count ?? -1)")
-        DispatchQueue.main.async {
-            self.devices = devices ?? []
-        }
-    }
-    
-    private func dismiss() {
-        isPresented = false
-    }
-}
-
-struct DeviceList_Previews: PreviewProvider {
-    static var previews: some View {
-        DeviceList(pushToken: Data(repeating: 42, count: 32),
-                   authToken: Data(repeating: 42, count: 16),
-                   api: .init(server: URL(string: "https://christophhagen.de/push")!, application: "some"),
-                   isPresented: .constant(true),
-                   devices: [DeviceRegistration(
-                    pushToken: Data([1,2,3,4,5]),
-                    application: "CC Messenger",
-                    name: "Some")])
-    }
-}
-
-extension DeviceRegistration: Identifiable {
-    
-    public var id: String {
-        pushToken.prefix(5).hexEncoded
-    }
-}

FlurSchnaps/FlurSchnapsApp.swift

@@ -1,4 +1,5 @@
 import SwiftUI
+import BinaryCodable
 
 @main
 struct FlurSchnapsApp: App {
@@ -15,12 +16,11 @@ struct FlurSchnapsApp: App {
 
 class AppDelegate: NSObject, UIApplicationDelegate {
     
-    @AppStorage("pushToken")
+    @AppStorage("deviceToken")
     var pushToken: Data?
     
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
         
-        
         // For iOS 10 display notification (sent via APNS)
         UNUserNotificationCenter.current().delegate = self
 
@@ -31,8 +31,9 @@ class AppDelegate: NSObject, UIApplicationDelegate {
     
     func application(_ application: UIApplication,
                      didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
-        print("Registered with token: \(deviceToken)")
+        let token = deviceToken.hexEncoded
-        self.pushToken = deviceToken
+        print("Registered for remote notifications with token: \(token)")
+        uploadNewDeviceToken(deviceToken)
     }
     
     func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
@@ -42,6 +43,47 @@ class AppDelegate: NSObject, UIApplicationDelegate {
         
         completionHandler(UIBackgroundFetchResult.newData)
     }
+    
+    private func uploadNewDeviceToken(_ token: Data) {
+        if token == pushToken {
+            // Device token unchanged
+            return
+        }
+        
+        Task {
+            let tokenUpload = TokenUpload(currentToken: token, previousToken: pushToken)
+            let data: Data
+            do {
+                data = try BinaryEncoder().encode(tokenUpload)
+                
+            } catch {
+                print("Failed to encode token upload")
+                return
+            }
+            let result: URLResponse
+            do {
+                var request = URLRequest(url: URL(string: "https://christophhagen.de/schnaps/token")!)
+                request.httpMethod = "POST"
+                (_, result) = try await URLSession.shared.upload(for: request, from: data)
+            } catch {
+                print("Failed to upload token: \(error)")
+                return
+            }
+            guard let response = result as? HTTPURLResponse else {
+                print("Invalid response \(result)")
+                return
+            }
+            guard response.statusCode == 200 else {
+                print("Invalid response to token upload: \(response.statusCode)")
+                return
+            }
+            print("Push token uploaded")
+            DispatchQueue.main.async {
+                self.pushToken = token
+            }
+        }
+        // Upload new token, possibly with old one
+    }
 }
 
 extension AppDelegate: UNUserNotificationCenterDelegate {

FlurSchnaps/TokenUpload.swift

@@ -0,0 +1,13 @@
+import Foundation
+
+struct TokenUpload: Codable {
+    
+    let currentToken: Data
+    
+    let previousToken: Data?
+    
+    enum CodingKeys: Int, CodingKey {
+        case currentToken = 1
+        case previousToken = 2
+    }
+}

FlurSchnaps/de.lproj/Localizable.strings

@@ -39,3 +39,5 @@
 "device-list-title" = "Geräte";
 
 "show-device-list-button" = "Liste einzeigen";
+
+"push-token-title" = "Geräte-Identifikator";

FlurSchnaps/en.lproj/Localizable.strings

@@ -39,3 +39,5 @@
 "device-list-title" = "Devices";
 
 "show-device-list-button" = "Show device list";
+
+"push-token-title" = "Push token";