zuma: Disable Euicc when GMS and GSF are not installed

* This avoids EuiccGoogle / GoogleCarrierServices crashing, taking the
  whole telephony stack with them when no GMS or GSF is installed.
* Compared to change 274251, this approach is no-op when GAPPS add-on is
  flashed before the first boot, and thus should not cause issues with
  eSIM when GAPPS is flashed.
* With microG, this also works after installing the microG GMS & GSF
  packages and rebooting, although manual activation of the eSIM is
  needed via Settings - Network.
* The only downside is that users will still see one or two crashes
  during the first boot because our application only starts after the
  device is booted.

Change-Id: I4a11c93e855978abbf8d84fdbe4ffc8b2aedc27c

lineage_common.mk

@@ -26,5 +26,9 @@ include hardware/google/pixel/lineage_health/device.mk
 PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS += \
     device/google/zuma/linker.config.json
 
+# Parts
+PRODUCT_PACKAGES += \
+    GoogleParts
+
 # Touch
 include hardware/google/pixel/touch/device.mk

parts/Android.bp

@@ -0,0 +1,23 @@
+//
+// Copyright (C) 2021 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+android_app {
+    name: "GoogleParts",
+
+    srcs: ["src/**/*.java"],
+    certificate: "platform",
+    platform_apis: true,
+    privileged: true,
+    system_ext_specific: true,
+
+    static_libs: [
+        "org.lineageos.settings.resources",
+    ],
+
+    optimize: {
+        proguard_flags_files: ["proguard.flags"],
+    },
+}

parts/AndroidManifest.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2021 The LineageOS Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.lineageos.settings"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <queries>
+        <package android:name="com.google.android.gms" />
+        <package android:name="com.google.android.gsf" />
+        <package android:name="com.google.android.euicc" />
+        <package android:name="com.google.euiccpixel" />
+    </queries>
+
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
+    <uses-sdk
+        android:minSdkVersion="30"
+        android:targetSdkVersion="30"/>
+
+    <application
+        android:label="@string/device_settings_app_name"
+        android:persistent="true">
+
+        <receiver android:name=".BootCompletedReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </receiver>
+
+    </application>
+</manifest>

parts/proguard.flags

@@ -0,0 +1,3 @@
+-keep class org.lineageos.settings.* {
+  *;
+}

parts/src/org/lineageos/settings/BootCompletedReceiver.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.lineageos.settings;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+public class BootCompletedReceiver extends BroadcastReceiver {
+    private static final String TAG = "GoogleParts";
+
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        Log.d(TAG, "Received boot completed intent");
+        EuiccDisabler.enableOrDisableEuicc(context);
+    }
+}

parts/src/org/lineageos/settings/EuiccDisabler.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.lineageos.settings;
+
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.util.Log;
+
+class EuiccDisabler {
+    private static final String TAG = "GoogleParts";
+    private static final String[] EUICC_DEPENDENCIES = new String[]{
+        "com.google.android.gms",
+        "com.google.android.gsf"
+    };
+    private static final String[] EUICC_PACKAGES = new String[]{
+        "com.google.android.euicc",
+        "com.google.euiccpixel"
+    };
+
+    private static boolean isInstalledAndEnabled(PackageManager pm, String pkgName) {
+        try {
+            PackageInfo info = pm.getPackageInfo(pkgName, 0);
+            Log.d(TAG, "package " + pkgName + " installed, " +
+                       "enabled = " + info.applicationInfo.enabled);
+            return info.applicationInfo.enabled;
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.d(TAG, "package " + pkgName + " is not installed");
+            return false;
+        }
+    }
+
+    private static boolean shouldDisable(PackageManager pm) {
+        for (String dep : EUICC_DEPENDENCIES) {
+            if (!isInstalledAndEnabled(pm, dep)) {
+                // Disable if any of the dependencies are disabled
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static void enableOrDisableEuicc(Context context) {
+        PackageManager pm = context.getPackageManager();
+        boolean disable = shouldDisable(pm);
+        int flag = disable
+            ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED
+            : PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
+        for (String pkg : EUICC_PACKAGES) {
+            try {
+                pm.setApplicationEnabledSetting(pkg, flag, 0);
+            } catch (IllegalArgumentException e) {
+                Log.d(TAG, "package " + pkg + " is not present");
+            }
+        }
+    }
+}