Add a local network probe to trigger local network privacy dialog

mullvad · Jan 29, 2024 · 510c155 · 510c155
1 parent 3ad7afe
commit 510c155
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Showing 4 changed files with 35 additions and 0 deletions.
diff --git a/ios/MullvadVPN.xcodeproj/project.pbxproj b/ios/MullvadVPN.xcodeproj/project.pbxproj
@@ -616,6 +616,7 @@
 		A97D25B42B0CB59300946B2D /* TunnelObfuscationStub.swift in Sources */ = {isa = PBXBuildFile; fileRef = A97D25B32B0CB59300946B2D /* TunnelObfuscationStub.swift */; };
 		A97D30172AE6B5E90045C0E4 /* StoredWgKeyData.swift in Sources */ = {isa = PBXBuildFile; fileRef = A97D30162AE6B5E90045C0E4 /* StoredWgKeyData.swift */; };
 		A97FF5502A0D2FFC00900996 /* NSFileCoordinator+Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = A97FF54F2A0D2FFC00900996 /* NSFileCoordinator+Extensions.swift */; };
+		A98502032B627B120061901E /* LocalNetworkProbe.swift in Sources */ = {isa = PBXBuildFile; fileRef = A98502022B627B120061901E /* LocalNetworkProbe.swift */; };
 		A988A3E22AFE54AC0008D2C7 /* AccountExpiry.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7A6F2FA62AFBB9AE006D0856 /* AccountExpiry.swift */; };
 		A988DF272ADE86ED00D807EF /* WireGuardObfuscationSettings.swift in Sources */ = {isa = PBXBuildFile; fileRef = A988DF252ADE86ED00D807EF /* WireGuardObfuscationSettings.swift */; };
 		A988DF2A2ADE880300D807EF /* TunnelSettingsV3.swift in Sources */ = {isa = PBXBuildFile; fileRef = A988DF282ADE880300D807EF /* TunnelSettingsV3.swift */; };
@@ -1772,6 +1773,7 @@
 		A97D25B32B0CB59300946B2D /* TunnelObfuscationStub.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TunnelObfuscationStub.swift; sourceTree = "<group>"; };
 		A97D30162AE6B5E90045C0E4 /* StoredWgKeyData.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StoredWgKeyData.swift; sourceTree = "<group>"; };
 		A97FF54F2A0D2FFC00900996 /* NSFileCoordinator+Extensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "NSFileCoordinator+Extensions.swift"; sourceTree = "<group>"; };
+		A98502022B627B120061901E /* LocalNetworkProbe.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LocalNetworkProbe.swift; sourceTree = "<group>"; };
 		A988DF252ADE86ED00D807EF /* WireGuardObfuscationSettings.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WireGuardObfuscationSettings.swift; sourceTree = "<group>"; };
 		A988DF282ADE880300D807EF /* TunnelSettingsV3.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TunnelSettingsV3.swift; sourceTree = "<group>"; };
 		A9A1DE782AD5708E0073F689 /* TransportStrategy.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TransportStrategy.swift; sourceTree = "<group>"; };
@@ -2169,6 +2171,7 @@
 		5827B0A22B0E068800CCBBA1 /* AccessMethodRepository */ = {
 			isa = PBXGroup;
 			children = (
+				A98502022B627B120061901E /* LocalNetworkProbe.swift */,
 				58EF87562B16330B00C098B2 /* ProxyConfigurationTester.swift */,
 				58EF875C2B1638BF00C098B2 /* ProxyConfigurationTesterProtocol.swift */,
 			);
@@ -4896,6 +4899,7 @@
 				F0C6FA852A6A733700F521F0 /* InAppPurchaseInteractor.swift in Sources */,
 				58CEB2F92AFD136E00E6E088 /* UIBackgroundConfiguration+Extensions.swift in Sources */,
 				5878F50029CDA742003D4BE2 /* UIView+AutoLayoutBuilder.swift in Sources */,
+				A98502032B627B120061901E /* LocalNetworkProbe.swift in Sources */,
 				583FE01029C0F532006E85F9 /* CustomSplitViewController.swift in Sources */,
 				7A6F2FA92AFD0842006D0856 /* CustomDNSDataSource.swift in Sources */,
 				58EF580B25D69D7A00AEBA94 /* ProblemReportSubmissionOverlayView.swift in Sources */,

diff --git a/ios/MullvadVPN/AccessMethodRepository/LocalNetworkProbe.swift b/ios/MullvadVPN/AccessMethodRepository/LocalNetworkProbe.swift
@@ -0,0 +1,28 @@
+//
+//  LocalNetworkProbe.swift
+//  MullvadVPN
+//
+//  Created by Marco Nikic on 2024-01-25.
+//  Copyright © 2024 Mullvad VPN AB. All rights reserved.
+//
+
+import Foundation
+import Network
+
+struct LocalNetworkProbe {
+    /// Does a best effort attempt to trigger the local network privacy alert.
+    func triggerLocalNetworkPrivacyAlert() {
+        let dispatchQueue = DispatchQueue(label: "com.mullvad.localNetworkAlert")
+        let localIpv4Connection = NWConnection(
+            to: NWEndpoint.hostPort(host: .ipv4(.broadcast), port: .any),
+            using: .udp
+        )
+        localIpv4Connection.start(queue: dispatchQueue)
+
+        let localIpv6Connection = NWConnection(
+            to: NWEndpoint.hostPort(host: .ipv6(.broadcast), port: .any),
+            using: .udp
+        )
+        localIpv6Connection.start(queue: dispatchQueue)
+    }
+}
diff --git a/ios/MullvadVPN/Coordinators/Settings/APIAccess/Add/AddAccessMethodCoordinator.swift b/ios/MullvadVPN/Coordinators/Settings/APIAccess/Add/AddAccessMethodCoordinator.swift
@@ -46,6 +46,7 @@ class AddAccessMethodCoordinator: Coordinator, Presentable, Presenting {
         setUpControllerNavigationItem(controller)
         controller.delegate = self
 
+        LocalNetworkProbe().triggerLocalNetworkPrivacyAlert()
         navigationController.pushViewController(controller, animated: false)
     }
 

diff --git a/ios/MullvadVPN/Supporting Files/Info.plist b/ios/MullvadVPN/Supporting Files/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>MullvadVPN uses the local network to connect to the server of your custom proxy server.</string>
 	<key>ApplicationSecurityGroupIdentifier</key>
 	<string>$(SECURITY_GROUP_IDENTIFIER)</string>
 	<key>MainApplicationIdentifier</key>