v6.02: Fixed a problem with suggesting IMEI and serial number as device IDs at first start

Author: vmayorow

app/build.gradle

@@ -38,8 +38,8 @@ android {
         // To avoid extra step during initial setup, let's keep the target SDK version as 29 as long as possible
         //noinspection ExpiredTargetSdkVersion
         targetSdkVersion 34
-        versionCode 15010
-        versionName "6.01"
+        versionCode 15020
+        versionName "6.02"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         dataBinding {
             enabled = true

app/src/main/java/com/hmdm/launcher/ui/BaseActivity.java

@@ -114,6 +114,7 @@ protected void createAndShowEnterDeviceIdDialog( boolean error, String deviceId
         // if it's bound to IMEI, it becomes difficult to replace the device
         List<String> variantsList = new ArrayList<>();
         if (!BuildConfig.DEVICE_ID_CHOICE.equals("user")) {
+            Utils.autoGrantPhonePermission(this);
             String imei = DeviceInfoProvider.getImei(this);
             if (imei != null) {
                 variantsList.add(imei);

app/src/main/java/com/hmdm/launcher/ui/MainActivity.java

@@ -962,6 +962,7 @@ private void startLauncher() {
             createAndShowServerDialog(false, settingsHelper.getBaseUrl(), settingsHelper.getServerProject());
         } else if ( settingsHelper.getDeviceId().length() == 0 ) {
             Log.d(Const.LOG_TAG, "Device ID is empty");
+            Utils.autoGrantPhonePermission(this);
             if (!SystemUtils.autoSetDeviceId(this)) {
                 createAndShowEnterDeviceIdDialog(false, null);
             } else {

app/src/main/java/com/hmdm/launcher/ui/MdmChoiceSetupActivity.java

@@ -1,5 +1,7 @@
 package com.hmdm.launcher.ui;
 
+import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_MODE;
+
 import android.app.Dialog;
 import android.app.admin.DevicePolicyManager;
 import android.content.Intent;
@@ -24,13 +26,10 @@
 import com.hmdm.launcher.databinding.ActivityMdmChoiceBinding;
 import com.hmdm.launcher.databinding.DialogEnterDeviceIdBinding;
 import com.hmdm.launcher.helper.SettingsHelper;
-import com.hmdm.launcher.util.DeviceInfoProvider;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_MODE;
-
 public class MdmChoiceSetupActivity extends AppCompatActivity {
     private ActivityMdmChoiceBinding binding;
 
@@ -71,7 +70,8 @@ protected void onCreate( Bundle savedInstanceState ) {
             } else if (BuildConfig.DEVICE_ID_CHOICE.equals("serial") || "serial".equals(deviceIdUse)) {
                 deviceId = intent.getStringExtra(DevicePolicyManager.EXTRA_PROVISIONING_SERIAL_NUMBER);
             } else {
-                displayEnterDeviceIdDialog();
+                displayEnterDeviceIdDialog(intent.getStringExtra(DevicePolicyManager.EXTRA_PROVISIONING_IMEI),
+                        intent.getStringExtra(DevicePolicyManager.EXTRA_PROVISIONING_SERIAL_NUMBER));
                 return;
             }
             settingsHelper.setDeviceId(deviceId);
@@ -91,7 +91,7 @@ public void continueSetup(View view) {
         finish();
     }
 
-    protected void displayEnterDeviceIdDialog() {
+    protected void displayEnterDeviceIdDialog(String imei, String serial) {
         enterDeviceIdDialog = new Dialog(this);
         enterDeviceIdDialogBinding = DataBindingUtil.inflate(
                 LayoutInflater.from( this ),
@@ -112,11 +112,9 @@ protected void displayEnterDeviceIdDialog() {
 
         // Suggest variants to choose the device ID: IMEI or serial
         List<String> variantsList = new ArrayList<>();
-        String imei = DeviceInfoProvider.getImei(this);
         if (imei != null) {
             variantsList.add(imei);
         }
-        String serial = DeviceInfoProvider.getSerialNumber();
         if (serial != null && !serial.equals(Build.UNKNOWN)) {
             variantsList.add(serial);
         }

app/src/main/java/com/hmdm/launcher/util/Utils.java

@@ -77,6 +77,35 @@ public static String getLauncherVariant() {
         return BuildConfig.FLAVOR == null || BuildConfig.FLAVOR.equals("") ? "opensource" : BuildConfig.FLAVOR;
     }
 
+    // Automatically grant permission to get phone state (for IMEI and serial)
+    @TargetApi(Build.VERSION_CODES.M)
+    public static boolean autoGrantPhonePermission(Context context) {
+        try {
+            DevicePolicyManager devicePolicyManager = (DevicePolicyManager) context.getSystemService(
+                    Context.DEVICE_POLICY_SERVICE);
+            ComponentName adminComponentName = LegacyUtils.getAdminComponentName(context);
+
+            if (devicePolicyManager.getPermissionGrantState(adminComponentName,
+                    context.getPackageName(), Manifest.permission.READ_PHONE_STATE) != DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED) {
+                boolean success = devicePolicyManager.setPermissionGrantState(adminComponentName,
+                        context.getPackageName(), Manifest.permission.READ_PHONE_STATE, DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);
+                if (!success) {
+                    return false;
+                }
+            }
+        } catch (NoSuchMethodError e) {
+            // This exception is raised on Android 5.1
+            e.printStackTrace();
+            return false;
+        } catch (/* SecurityException */ Exception e) {
+            // No active admin ComponentInfo (not sure why could that happen)
+            e.printStackTrace();
+            return false;
+        }
+        Log.i(Const.LOG_TAG, "READ_PHONE_STATE automatically granted");
+        return true;
+    }
+
     // Automatically get dangerous permissions
     // Notice: default (null) app permission strategy is "Grant all"
     @TargetApi(Build.VERSION_CODES.M)