Use Magisk folder to detect active modules. (No longer use boot listener)

app/src/main/AndroidManifest.xml

@@ -11,8 +11,6 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <!-- WebView offline webpage support -->
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    <!-- Make sure of the module active state by checking enabled modules on boot -->
-    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <!-- Open config apps for applications -->
     <uses-permission-sdk-23 android:name="android.permission.QUERY_ALL_PACKAGES" />
     <!-- Supposed to fix bugs with old firmware, only requested on pre Marshmallow -->
@@ -34,12 +32,6 @@
         android:usesCleartextTraffic="false"
         tools:targetApi="s"
         tools:replace="android:supportsRtl">
-        <receiver android:name="com.fox2code.mmm.manager.ModuleBootReceive"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="android.intent.action.BOOT_COMPLETED" />
-            </intent-filter>
-        </receiver>
         <activity
             android:name=".settings.SettingsActivity"
             android:parentActivityName=".MainActivity"

app/src/main/java/com/fox2code/mmm/MainApplication.java

@@ -150,17 +150,6 @@ public class MainApplication extends CompatApplication {
         return firstBoot;
     }
 
-    public static void notifyBootListenerCompleted() {
-        if (MainApplication.bootSharedPreferences != null) {
-            MainApplication.bootSharedPreferences.edit()
-                    .putBoolean("first_boot", false).apply();
-        } else if (MainApplication.INSTANCE != null) {
-            MainApplication.getSharedPreferences().edit()
-                    .putBoolean("first_boot", false).apply();
-        }
-        firstBoot = false;
-    }
-
     public static boolean hasGottenRootAccess() {
         return getSharedPreferences().getBoolean("has_root_access", false);
     }

app/src/main/java/com/fox2code/mmm/installer/InstallerInitializer.java

@@ -42,6 +42,11 @@ public class InstallerInitializer extends Shell.Initializer {
                 InstallerInitializer.MAGISK_PATH + "/.magisk/mirror";
     }
 
+    public static String peekModulesPath() {
+        return InstallerInitializer.MAGISK_PATH == null ? null :
+                InstallerInitializer.MAGISK_PATH + "/.magisk/modules";
+    }
+
     public static int peekMagiskVersion() {
         return InstallerInitializer.MAGISK_VERSION_CODE;
     }

app/src/main/java/com/fox2code/mmm/manager/ModuleBootReceive.java

@@ -1,32 +0,0 @@
-package com.fox2code.mmm.manager;
-
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-
-import com.fox2code.mmm.MainApplication;
-import com.fox2code.mmm.installer.InstallerInitializer;
-
-public class ModuleBootReceive extends BroadcastReceiver {
-    private static final String BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
-
-    @Override
-    public void onReceive(Context context, Intent intent) {
-        if (intent == null || !BOOT_COMPLETED.equals(intent.getAction())
-                || !MainApplication.hasGottenRootAccess()) {
-            return;
-        }
-        InstallerInitializer.tryGetMagiskPathAsync(new InstallerInitializer.Callback() {
-            @Override
-            public void onPathReceived(String path) {
-                MainApplication.notifyBootListenerCompleted();
-                ModuleManager.getINSTANCE().scan();
-            }
-
-            @Override
-            public void onFailure(int error) {
-                MainApplication.setHasGottenRootAccess(false);
-            }
-        });
-    }
-}

app/src/main/java/com/fox2code/mmm/manager/ModuleManager.java

@@ -4,6 +4,7 @@ import android.content.SharedPreferences;
 import android.util.Log;
 
 import com.fox2code.mmm.MainApplication;
+import com.fox2code.mmm.installer.InstallerInitializer;
 import com.fox2code.mmm.utils.PropUtils;
 import com.topjohnwu.superuser.Shell;
 import com.topjohnwu.superuser.io.SuFile;
@@ -43,7 +44,7 @@ public final class ModuleManager {
     }
 
     // MultiThread friendly method
-    public final void scan() {
+    public void scan() {
         if (!this.scanning) {
             // Do scan
             synchronized (scanLock) {
@@ -61,11 +62,11 @@ public final class ModuleManager {
     }
 
     // Pause execution until the scan is completed if one is currently running
-    public final void afterScan() {
+    public void afterScan() {
         if (this.scanning) synchronized (this.scanLock) {}
     }
 
-    public final void runAfterScan(Runnable runnable) {
+    public void runAfterScan(Runnable runnable) {
         synchronized (this.scanLock) {
             runnable.run();
         }
@@ -86,7 +87,13 @@ public final class ModuleManager {
             v.support = null;
             v.config = null;
         }
+        String modulesPath = InstallerInitializer.peekModulesPath();
         String[] modules = new SuFile("/data/adb/modules").list();
+        boolean needFallback = modulesPath == null ||
+                !new SuFile(modulesPath).exists();
+        if (needFallback) {
+            Log.e(TAG, "Failed to detect modules folder, using fallback instead.");
+        }
         if (modules != null) {
             for (String module : modules) {
                 if (!new SuFile("/data/adb/modules/" + module).isDirectory())
@@ -99,28 +106,22 @@ public final class ModuleManager {
                     moduleInfo.flags |= ModuleInfo.FLAG_MODULE_UPDATING_ONLY;
                 }
                 moduleInfo.flags &= ~FLAGS_RESET_UPDATE;
-                boolean disabled = new SuFile(
-                        "/data/adb/modules/" + module + "/disable").exists();
-                if (disabled) {
+                if (new SuFile("/data/adb/modules/" + module + "/disable").exists()) {
                     moduleInfo.flags |= ModuleInfo.FLAG_MODULE_DISABLED;
-                    if (firstBoot && firstScan) {
-                        editor.putBoolean("module_" + moduleInfo.id + "_active", true);
-                        moduleInfo.flags |= ModuleInfo.FLAG_MODULE_MAYBE_ACTIVE;
-                    }
-                } else {
+                } else if (needFallback && firstScan) {
+                    moduleInfo.flags |= ModuleInfo.FLAG_MODULE_ACTIVE;
+                    editor.putBoolean("module_" + moduleInfo.id + "_active", true);
+                }
+                if (new SuFile("/data/adb/modules/" + module + "/remove").exists()) {
+                    moduleInfo.flags |= ModuleInfo.FLAG_MODULE_UNINSTALLING;
+                }
+                if ((!needFallback && new SuFile(modulesPath + module).exists()) || (!firstBoot
+                        && bootPrefs.getBoolean("module_" + moduleInfo.id + "_active", false))) {
+                    moduleInfo.flags |= ModuleInfo.FLAG_MODULE_ACTIVE;
                     if (firstScan) {
-                        moduleInfo.flags |= ModuleInfo.FLAG_MODULE_ACTIVE;
                         editor.putBoolean("module_" + moduleInfo.id + "_active", true);
-                    } else if (!moduleInfo.hasFlag(ModuleInfo.FLAG_MODULE_MAYBE_ACTIVE) &&
-                            bootPrefs.getBoolean("module_" + moduleInfo.id + "_active", false)) {
-                        moduleInfo.flags |= ModuleInfo.FLAG_MODULE_ACTIVE;
                     }
                 }
-                boolean uninstalling = new SuFile(
-                        "/data/adb/modules/" + module + "/remove").exists();
-                if (uninstalling) {
-                    moduleInfo.flags |= ModuleInfo.FLAG_MODULE_UNINSTALLING;
-                }
                 try {
                     PropUtils.readProperties(moduleInfo,
                             "/data/adb/modules/" + module + "/module.prop", true);