From 4f3699e72baef0e5cc91984d7e2b43b390b8c1fc Mon Sep 17 00:00:00 2001
From: Benoit Martins <benoit.martins@belledonne-communications.com>
Date: Mon, 21 Oct 2024 10:59:02 +0200
Subject: [PATCH] Add local network authorization

---
 Linphone/Info.plist                           |  2 +
 .../Fragments/PermissionsFragment.swift       |  2 +-
 Linphone/Utils/PermissionManager.swift        | 53 ++++++++++++++++---
 3 files changed, 49 insertions(+), 8 deletions(-)

diff --git a/Linphone/Info.plist b/Linphone/Info.plist
index fdbc8ca20..89d3fd147 100644
--- a/Linphone/Info.plist
+++ b/Linphone/Info.plist
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>NSLocalNetworkUsageDescription</key>
+	<string>App requires access to the local network to establish VoIP connections</string>
 	<key>CFBundleURLTypes</key>
 	<array>
 		<dict>
diff --git a/Linphone/UI/Assistant/Fragments/PermissionsFragment.swift b/Linphone/UI/Assistant/Fragments/PermissionsFragment.swift
index 40e2fdc8c..370ae5a38 100644
--- a/Linphone/UI/Assistant/Fragments/PermissionsFragment.swift
+++ b/Linphone/UI/Assistant/Fragments/PermissionsFragment.swift
@@ -194,7 +194,7 @@ struct PermissionsFragment: View {
 		}
 		.navigationViewStyle(StackNavigationViewStyle())
 		.navigationBarHidden(true)
-		.onReceive(permissionManager.$contactsPermissionGranted, perform: { (granted) in
+		.onReceive(permissionManager.$allPermissionsHaveBeenDisplayed, perform: { (granted) in
 			if granted {
 				withAnimation {
 					sharedMainViewModel.changeWelcomeView()
diff --git a/Linphone/Utils/PermissionManager.swift b/Linphone/Utils/PermissionManager.swift
index e20bc2d51..dab08971b 100644
--- a/Linphone/Utils/PermissionManager.swift
+++ b/Linphone/Utils/PermissionManager.swift
@@ -22,6 +22,7 @@ import Photos
 import Contacts
 import UserNotifications
 import SwiftUI
+import Network
 
 class PermissionManager: ObservableObject {
 	
@@ -32,18 +33,28 @@ class PermissionManager: ObservableObject {
 	@Published var cameraPermissionGranted = false
 	@Published var contactsPermissionGranted = false
 	@Published var microphonePermissionGranted = false
+	@Published var allPermissionsHaveBeenDisplayed = false
 	
 	private init() {}
 	
 	func getPermissions() {
-		pushNotificationRequestPermission()
-		microphoneRequestPermission()
-		photoLibraryRequestPermission()
-		cameraRequestPermission()
-		contactsRequestPermission()
+		pushNotificationRequestPermission {
+			let dispatchGroup = DispatchGroup()
+			
+			dispatchGroup.enter()
+			self.microphoneRequestPermission()
+			self.photoLibraryRequestPermission()
+			self.cameraRequestPermission()
+			self.contactsRequestPermission(group: dispatchGroup)
+			
+			dispatchGroup.notify(queue: .main) {
+				// Now request local network authorization last
+				self.requestLocalNetworkAuthorization()
+			}
+		}
 	}
 	
-	func pushNotificationRequestPermission() {
+	func pushNotificationRequestPermission(completion: @escaping () -> Void) {
 		let options: UNAuthorizationOptions = [.alert, .sound, .badge]
 		UNUserNotificationCenter.current().requestAuthorization(options: options) { (granted, error) in
 			if let error = error {
@@ -52,6 +63,7 @@ class PermissionManager: ObservableObject {
 			DispatchQueue.main.async {
 				self.pushPermissionGranted = granted
 			}
+			completion()
 		}
 	}
 	
@@ -79,12 +91,39 @@ class PermissionManager: ObservableObject {
 		})
 	}
 	
-	func contactsRequestPermission() {
+	func contactsRequestPermission(group: DispatchGroup) {
 		let store = CNContactStore()
 		store.requestAccess(for: .contacts) { success, _ in
 			DispatchQueue.main.async {
 				self.contactsPermissionGranted = success
 			}
+			group.leave()
+		}
+	}
+	
+	func requestLocalNetworkAuthorization() {
+		// Use a general UDP broadcast endpoint to attempt triggering the authorization request
+		let host = NWEndpoint.Host("255.255.255.255") // Broadcast on the local network
+		let port = NWEndpoint.Port(12345) // Choose an arbitrary port
+		
+		let params = NWParameters.udp
+		let connection = NWConnection(host: host, port: port, using: params)
+		
+		connection.stateUpdateHandler = { newState in
+			switch newState {
+			case .ready:
+				print("Connection ready")
+				connection.cancel() // Close the connection after establishing it
+			case .failed(let error):
+				print("Connection failed: \(error)")
+				connection.cancel()
+			default:
+				break
+			}
+		}
+		connection.start(queue: .main)
+		DispatchQueue.main.async {
+			self.allPermissionsHaveBeenDisplayed = true
 		}
 	}
 }