Merge pull request #86 from fiskaltrust/user/tsc/wake-lock

Acquire WakeLock when hosting Swissbit SCUs
fiskaltrust · Sep 5, 2024 · 8d42b84 · 8d42b84
2 parents 5ffae2d + 48b4def
commit 8d42b84
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Showing 4 changed files with 17 additions and 4 deletions.
diff --git a/src/fiskaltrust.AndroidLauncher.Common/Services/MiddlewareLauncher.cs b/src/fiskaltrust.AndroidLauncher.Common/Services/MiddlewareLauncher.cs
@@ -7,8 +7,6 @@
 using fiskaltrust.AndroidLauncher.Common.Services.SCU;
 using fiskaltrust.AndroidLauncher.Common.Signing;
 using fiskaltrust.ifPOS.v1;
-using fiskaltrust.ifPOS.v1.de;
-using fiskaltrust.ifPOS.v1.it;
 using fiskaltrust.Middleware.Abstractions;
 using fiskaltrust.storage.serialization.V0;
 using Microsoft.Extensions.Logging;
@@ -39,6 +37,7 @@ internal class MiddlewareLauncher
         private readonly Dictionary<string, object> _scuParams;
         private readonly LogLevel _logLevel;
 
+        private Android.OS.PowerManager.WakeLock _wakeLock;        
         private List<IHelper> _helpers;
         private List<IPOS> _poss;
         private AbstractScuList _scus;
@@ -87,6 +86,9 @@ public async Task StartAsync()
                 switch (scuConfig.Package)
                 {
                     case PACKAGE_NAME_DE_SWISSBIT:
+                        // On some (payment) devices, the CPU is turned off as soon as the device becomes remotely idle (i.e. right after processing a receipt) - this seems to also stop the internal clock of the Swissbit TSE.
+                        // To prevent this, we acquire a partial wake lock to keep the CPU running. As this is only required with hardware TSEs, we only acquire the wake lock for the Swissbit SCU for now.
+                        AcquireCpuWakeLock();
                         await InitializeDESwissbitScuAsync(scuConfig);
                         break;                  
                     case PACKAGE_NAME_DE_FISKALY_CERTIFIED:
@@ -130,6 +132,8 @@ public async Task StopAsync()
                 helper.StopEnd();
             }
 
+            _wakeLock?.Release();
+
             IsRunning = false;
         }
 
@@ -194,5 +198,12 @@ private static string GetPrimaryUriForSignaturCreationUnit(PackageConfiguration
             var grpcUrl = scuConfiguration.Url.FirstOrDefault(x => x.StartsWith("grpc://", StringComparison.InvariantCulture));
             return new Uri(grpcUrl ?? scuConfiguration.Url.First()).ToString();
         }
+
+        private void AcquireCpuWakeLock()
+        {
+            var pm = (Android.OS.PowerManager)Android.App.Application.Context.GetSystemService(Android.Content.Context.PowerService);
+            _wakeLock = pm.NewWakeLock(Android.OS.WakeLockFlags.Partial, "fiskaltrust.AndroidLauncher::KeepAliveWakeLock");
+            _wakeLock.Acquire();
+        }
     }
 }
diff --git a/src/fiskaltrust.AndroidLauncher.Common/fiskaltrust.AndroidLauncher.Common.csproj b/src/fiskaltrust.AndroidLauncher.Common/fiskaltrust.AndroidLauncher.Common.csproj
@@ -144,10 +144,10 @@
       <Version>1.3.59</Version>
     </PackageReference>
     <PackageReference Include="fiskaltrust.Middleware.SCU.DE.Swissbit">
-      <Version>1.3.48</Version>
+      <Version>1.3.62</Version>
     </PackageReference>
     <PackageReference Include="fiskaltrust.Middleware.SCU.DE.SwissbitAndroid">
-      <Version>1.3.48</Version>
+      <Version>1.3.62</Version>
     </PackageReference>
     <PackageReference Include="Microsoft.AspNetCore">
       <Version>2.2.0</Version>

diff --git a/src/fiskaltrust.AndroidLauncher.Grpc/Properties/AndroidManifest.xml b/src/fiskaltrust.AndroidLauncher.Grpc/Properties/AndroidManifest.xml
@@ -10,4 +10,5 @@
 	<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 	<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" android:maxSdkVersion="32" />
 	<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
+	<uses-permission android:name="android.permission.WAKE_LOCK" />
 </manifest>
diff --git a/src/fiskaltrust.AndroidLauncher.Http/Properties/AndroidManifest.xml b/src/fiskaltrust.AndroidLauncher.Http/Properties/AndroidManifest.xml
@@ -9,4 +9,5 @@
 	<uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 	<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" android:maxSdkVersion="32" />
 	<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
+	<uses-permission android:name="android.permission.WAKE_LOCK" />
 </manifest>