Improve root detection, update libsu.

app/build.gradle

@@ -64,7 +64,7 @@ dependencies {
     // Utils
     implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:4.9.3'
     implementation 'com.squareup.okhttp3:okhttp-brotli:4.9.3'
-    implementation 'com.github.topjohnwu.libsu:io:4.0.0'
+    implementation 'com.github.topjohnwu.libsu:io:4.0.2'
 
     // Markdown
     implementation "io.noties.markwon:core:4.6.2"

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

@@ -256,7 +256,7 @@ public class InstallerActivity extends CompatActivity {
                 return;
             }
             installerMonitor = new InstallerMonitor(installScript);
-            installJob = Shell.sh("export MMM_EXT_SUPPORT=1",
+            installJob = Shell.cmd("export MMM_EXT_SUPPORT=1",
                     "cd \"" + this.moduleCache.getAbsolutePath() + "\"",
                     "sh \"" + installScript.getAbsolutePath() + "\"" +
                             " /dev/null 1 \"" + file.getAbsolutePath() + "\"")
@@ -324,11 +324,11 @@ public class InstallerActivity extends CompatActivity {
             installerMonitor = new InstallerMonitor(installExecutable);
             if (moduleId != null) installerMonitor.setForCleanUp(moduleId);
             if (noExtensions) {
-                installJob = Shell.su(arch32, // No Extensions
+                installJob = Shell.cmd(arch32, // No Extensions
                         "cd \"" + this.moduleCache.getAbsolutePath() + "\"",
                         installCommand).to(installerController, installerMonitor);
             } else {
-                installJob = Shell.su(arch32, "export MMM_EXT_SUPPORT=1",
+                installJob = Shell.cmd(arch32, "export MMM_EXT_SUPPORT=1",
                         "export MMM_USER_LANGUAGE=" + (MainApplication.isForceEnglish() ?
                                 "en-US" : Resources.getSystem()
                                 .getConfiguration().locale.toLanguageTag()),

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

@@ -7,8 +7,10 @@ import androidx.annotation.NonNull;
 
 import com.fox2code.mmm.Constants;
 import com.fox2code.mmm.MainApplication;
+import com.fox2code.mmm.utils.Files;
 import com.topjohnwu.superuser.NoShellException;
 import com.topjohnwu.superuser.Shell;
+import com.topjohnwu.superuser.io.SuFile;
 
 import java.io.File;
 import java.util.ArrayList;
@@ -87,17 +89,19 @@ public class InstallerInitializer extends Shell.Initializer {
         int MAGISK_VERSION_CODE;
         if (MAGISK_PATH != null && !forceCheck) return MAGISK_PATH;
         ArrayList<String> output = new ArrayList<>();
-        if(!Shell.su( "magisk -V", "magisk --path").to(output).exec().isSuccess()) {
+        if(!Shell.cmd("magisk -V", "magisk --path").to(output).exec().isSuccess()) {
             return null;
         }
         MAGISK_PATH = output.size() < 2 ? "" : output.get(1);
+        Log.d(TAG, "Magisk runtime path: " + MAGISK_PATH);
         MAGISK_VERSION_CODE = Integer.parseInt(output.get(0));
+        Log.d(TAG, "Magisk version code: " + MAGISK_VERSION_CODE);
         if (MAGISK_VERSION_CODE >= Constants.MAGISK_VER_CODE_FLAT_MODULES &&
                 MAGISK_VERSION_CODE < Constants.MAGISK_VER_CODE_PATH_SUPPORT &&
                 (MAGISK_PATH.isEmpty() || !new File(MAGISK_PATH).exists())) {
             MAGISK_PATH = "/sbin";
         }
-        if (MAGISK_PATH.length() != 0 && new File(MAGISK_PATH).exists()) {
+        if (MAGISK_PATH.length() != 0 && Files.existsSU(new File(MAGISK_PATH))) {
             InstallerInitializer.MAGISK_PATH = MAGISK_PATH;
         } else {
             Log.e(TAG, "Failed to get Magisk path (Got " + MAGISK_PATH + ")");

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

@@ -243,13 +243,13 @@ public final class ModuleManager {
                             line.equals("/data/adb/magisk.db")) continue;
                     line = line.replace("\\", "\\\\")
                             .replace("\"", "\\\"");
-                    Shell.su("rm -rf \"" + line + "\"").exec();
+                    Shell.cmd("rm -rf \"" + line + "\"").exec();
                 }
             }
         } catch (IOException ignored) {}
-        Shell.su("rm -rf /data/adb/modules/" + escapedId + "/").exec();
-        Shell.su("rm -f /data/adb/modules/." + escapedId + "-files").exec();
-        Shell.su("rm -rf /data/adb/modules_update/" + escapedId + "/").exec();
+        Shell.cmd("rm -rf /data/adb/modules/" + escapedId + "/").exec();
+        Shell.cmd("rm -f /data/adb/modules/." + escapedId + "-files").exec();
+        Shell.cmd("rm -rf /data/adb/modules_update/" + escapedId + "/").exec();
         moduleInfo.flags = ModuleInfo.FLAG_METADATA_INVALID;
         return true;
     }

app/src/main/java/com/fox2code/mmm/utils/Files.java

@@ -1,5 +1,6 @@
 package com.fox2code.mmm.utils;
 
+import com.topjohnwu.superuser.io.SuFile;
 import com.topjohnwu.superuser.io.SuFileInputStream;
 import com.topjohnwu.superuser.io.SuFileOutputStream;
 
@@ -43,6 +44,10 @@ public class Files {
         }
     }
 
+    public static boolean existsSU(File file) {
+        return file.exists() || new SuFile(file.getAbsolutePath()).exists();
+    }
+
     public static void copy(InputStream inputStream,OutputStream outputStream) throws IOException {
         int nRead;
         byte[] data = new byte[16384];