DeviceRegistartionFragment: Allow viewing device registartion data

build.gradle

@@ -15,6 +15,7 @@ buildscript {
     ext.biometricVersion = '1.1.0'
     ext.coreVersion = '1.12.0'
     ext.fragmentVersion = '1.6.2'
+    ext.gsonVersion = '2.10.1'
     ext.lifecycleVersion = '2.7.0'
     ext.loaderVersion = '1.1.0'
     ext.materialVersion = '1.11.0'

play-services-core/build.gradle

@@ -79,6 +79,9 @@ dependencies {
     implementation "androidx.preference:preference-ktx:$preferenceVersion"
     implementation "androidx.webkit:webkit:$webkitVersion"
 
+    // Gson
+    implementation "com.google.code.gson:gson:$gsonVersion"
+
     // Material Components
     implementation "com.google.android.material:material:$materialVersion"
 

play-services-core/src/main/java/org/microg/gms/checkin/CheckinManager.java

@@ -42,7 +42,11 @@ public static synchronized LastCheckinInfo checkin(Context context, boolean forc
             return null;
         if (!CheckinPreferences.isEnabled(context))
             return null;
-        List<CheckinClient.Account> accounts = new ArrayList<CheckinClient.Account>();
+        return handleResponse(context, CheckinClient.request(getCheckinRequest(context, info)));
+    }
+
+    public static CheckinRequest getCheckinRequest(Context context, LastCheckinInfo info) throws IOException {
+        List<CheckinClient.Account> accounts = new ArrayList<>();
         AccountManager accountManager = AccountManager.get(context);
         String accountType = AuthConstants.DEFAULT_ACCOUNT_TYPE;
         for (Account account : accountManager.getAccountsByType(accountType)) {
@@ -55,10 +59,9 @@ public static synchronized LastCheckinInfo checkin(Context context, boolean forc
                 accounts.add(new CheckinClient.Account(account.name, token));
             }
         }
-        CheckinRequest request = CheckinClient.makeRequest(context,
+        return CheckinClient.makeRequest(context,
                 new DeviceConfiguration(context), Utils.getDeviceIdentifier(context),
                 Utils.getPhoneInfo(context), info, Utils.getLocale(context), accounts);
-        return handleResponse(context, CheckinClient.request(request));
     }
 
     private static LastCheckinInfo handleResponse(Context context, CheckinResponse response) {

play-services-core/src/main/kotlin/org/microg/gms/ui/DeviceRegistrationFragment.kt

@@ -19,7 +19,11 @@ import androidx.preference.Preference
 import androidx.preference.PreferenceCategory
 import androidx.preference.PreferenceFragmentCompat
 import com.google.android.gms.R
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import com.google.gson.GsonBuilder
+import org.microg.gms.checkin.CheckinManager
 import org.microg.gms.checkin.CheckinPreferences
+import org.microg.gms.checkin.LastCheckinInfo
 import org.microg.gms.checkin.getCheckinServiceInfo
 import org.microg.gms.profile.ProfileManager
 import org.microg.gms.profile.ProfileManager.PROFILE_AUTO
@@ -94,6 +98,24 @@ class DeviceRegistrationFragment : PreferenceFragmentCompat() {
             CheckinPreferences.setEnabled(requireContext(), newStatus)
             true
         }
+
+        findPreference<Preference>("pref_device_registration_data")?.setOnPreferenceClickListener {
+            val checkInRequest = CheckinManager.getCheckinRequest(
+                it.context,
+                LastCheckinInfo.read(it.context)
+            )
+            val gson = GsonBuilder()
+                .setPrettyPrinting()
+                .create()
+
+            MaterialAlertDialogBuilder(it.context)
+                .setTitle(R.string.pref_device_registration_data_title)
+                .setMessage(gson.toJson(checkInRequest))
+                .setPositiveButton(android.R.string.ok) { dialog, _ -> dialog.dismiss() }
+                .create()
+                .show()
+            true
+        }
     }
 
     private fun configureProfilePreference() {

play-services-core/src/main/res/values/strings.xml

@@ -144,6 +144,9 @@ This can take a couple of minutes."</string>
     <string name="pref_checkin_enable_summary">Registers your device to Google services and creates a unique device identifier. microG strips identifying bits other than your Google account name from registration data.</string>
     <string name="pref_device_registration_android_id">Android ID</string>
 
+    <string name="pref_device_registration_data_title">Device registration data</string>
+    <string name="pref_device_registration_data_summary">Check data shared with Google servers for device registration</string>
+
     <string name="checkin_not_registered">Not registered</string>
     <string name="checkin_last_registration">Last registration: <xliff:g example="Yesterday, 02:20 PM">%1$s</xliff:g></string>
     <string name="checkin_enable_switch">Register device</string>

play-services-core/src/main/res/xml/preferences_device_registration.xml

@@ -50,6 +50,11 @@
             android:title="@string/pref_device_registration_android_id"
             tools:summary="1953a59d1c1b7e4b"
             app:iconSpaceReserved="false" />
+        <Preference
+            android:key="pref_device_registration_data"
+            android:summary="@string/pref_device_registration_data_summary"
+            android:title="@string/pref_device_registration_data_title"
+            app:iconSpaceReserved="false" />
     </PreferenceCategory>
     <PreferenceCategory android:layout="@layout/preference_category_no_label">
         <org.microg.gms.ui.FooterPreference