More precise sudb management

2024-11-28 04:25:27 +00:00 · 2017-12-20 12:14:46 +08:00 · 2017-12-20 12:14:46 +08:00 · a7ed6c15d3
commit a7ed6c15d3
parent 5ee49ba065
8 changed files with 33 additions and 31 deletions
--- a/build.gradle
+++ b/build.gradle
@ -8,7 +8,7 @@ android {
        applicationId "com.topjohnwu.magisk"
        minSdkVersion 21
        targetSdkVersion 27
-        versionCode 74
+        versionCode 75
        versionName "5.4.3"
        ndk {
            moduleName 'zipadjust'
--- a/src/main/assets/changelog.md
+++ b/src/main/assets/changelog.md
@ -1,4 +1,4 @@
-### v5.4.3 (74)
+### v5.4.3 (75)
 - Fix dynamic resource loading, should prevent crashing when checking SafetyNet
 - Update SignAPK to use very little RAM, should expand old device support
 - Support settings migration after hiding Magisk Manager
@ -7,3 +7,4 @@
 - Add dark theme to superuser requests
 - Properly handle new `KEEPVERITY` and `HIGHCOMP` flags for installation
 - Adapt su database to `/data/adb/magisk.adb` and installation paths to `/data/adb`
+- Massive improvements for repackaging Magisk Manager
--- a/src/main/java/com/topjohnwu/magisk/MagiskManager.java
+++ b/src/main/java/com/topjohnwu/magisk/MagiskManager.java
@ -106,16 +106,7 @@ public class MagiskManager extends Application {
            } catch (PackageManager.NameNotFoundException ignored) { /* Expected */ }
        }

-        suDB = new SuDatabaseHelper(true);
-
-        if (getPackageName().equals(Const.ORIG_PKG_NAME)) {
-            String pkg = suDB.getStrings(Const.Key.SU_REQUESTER, null);
-            if (pkg != null) {
-                Utils.uninstallPkg(pkg);
-                suDB.setStrings(Const.Key.SU_REQUESTER, null);
-            }
-        }
-
+        suDB = new SuDatabaseHelper(false);
        repoDB = new RepoDatabaseHelper(this);
        defaultLocale = Locale.getDefault();
        setLocale();
@ -212,7 +203,7 @@ public class MagiskManager extends Application {
            keepEnc = false;
        }

-        if (suDB != null) {
+        if (suDB != null && !SuDatabaseHelper.verified) {
            suDB.close();
            suDB = new SuDatabaseHelper();
        }
--- a/src/main/java/com/topjohnwu/magisk/SplashActivity.java
+++ b/src/main/java/com/topjohnwu/magisk/SplashActivity.java
@ -35,6 +35,9 @@ public class SplashActivity extends Activity {

        MagiskManager mm = getMagiskManager();

+        mm.loadMagiskInfo();
+        Utils.loadPrefs();
+
        // Dynamic detect all locales
        new LoadLocale().exec();

@ -45,9 +48,6 @@ public class SplashActivity extends Activity {
            getSystemService(NotificationManager.class).createNotificationChannel(channel);
        }

-        mm.loadMagiskInfo();
-        Utils.loadPrefs();
-
        LoadModules loadModuleTask = new LoadModules();

        if (Utils.checkNetworkStatus()) {
--- a/src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java
+++ b/src/main/java/com/topjohnwu/magisk/database/SuDatabaseHelper.java
@ -29,6 +29,7 @@ import java.util.List;
 public class SuDatabaseHelper extends SQLiteOpenHelper {

    public static final String DB_NAME = "su.db";
+    public static boolean verified = false;

    private static final int DATABASE_VER = 5;
    private static final String POLICY_TABLE = "policies";
@ -41,7 +42,7 @@ public class SuDatabaseHelper extends SQLiteOpenHelper {
    private PackageManager pm;
    private SQLiteDatabase mDb;

-    private static Context initDB(boolean local) {
+    private static Context initDB(boolean verify) {
        Context context;
        MagiskManager ce = MagiskManager.get();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
@ -61,46 +62,49 @@ public class SuDatabaseHelper extends SQLiteOpenHelper {
        }

        File db = Utils.getDatabasePath(context, DB_NAME);
-        if (local && db.length() == 0) {
+        if (!verify && db.length() == 0) {
            ce.loadMagiskInfo();
-            return initDB(false);
+            return initDB(true);
        }

        // Only care about local db (no shell involved)
-        if (local)
+        if (!verify)
            return context;

        // We need to make sure the global db is setup properly
        if (ce.magiskVersionCode >= 1464 && Shell.rootAccess()) {
-            Shell.su_raw(Utils.fmt("mkdir %s; chmod 700 %s", GLOBAL_DB.getParent(), GLOBAL_DB.getParent()));
+            Shell.su(Utils.fmt("mkdir %s 2>/dev/null; chmod 700 %s", GLOBAL_DB.getParent(), GLOBAL_DB.getParent()));
            if (!Utils.itemExist(GLOBAL_DB)) {
                db = context.getDatabasePath(DB_NAME);
                Shell.su(Utils.fmt("cp -af %s %s; rm -f %s*", db, GLOBAL_DB, db));
            }

            try {
+                db.getParentFile().mkdirs();
                db.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }

-            // Make sure the global and local db matches
-            if (!TextUtils.equals(Utils.checkMD5(GLOBAL_DB), Utils.checkMD5(db))) {
+            // Make sure the global and local db is the same inode
+            verified = TextUtils.equals(Utils.checkInode(GLOBAL_DB), Utils.checkInode(db));
+            if (!verified) {
                Shell.su(Utils.fmt(
                        "chown 0.0 %s; chmod 666 %s; chcon u:object_r:su_file:s0 %s;" +
                                "mount -o bind %s %s",
                        GLOBAL_DB, GLOBAL_DB, GLOBAL_DB, GLOBAL_DB, db));
+                verified = TextUtils.equals(Utils.checkInode(GLOBAL_DB), Utils.checkInode(db));
            }
        }
        return context;
    }

    public SuDatabaseHelper() {
-        this(false);
+        this(true);
    }

-    public SuDatabaseHelper(boolean local) {
-        this(initDB(local));
+    public SuDatabaseHelper(boolean verify) {
+        this(initDB(verify));
    }

    private SuDatabaseHelper(Context context) {
@ -109,6 +113,14 @@ public class SuDatabaseHelper extends SQLiteOpenHelper {
        pm = context.getPackageManager();
        mDb = getWritableDatabase();
        cleanup();
+
+        if (context.getPackageName().equals(Const.ORIG_PKG_NAME)) {
+            String pkg = getStrings(Const.Key.SU_REQUESTER, null);
+            if (pkg != null) {
+                Utils.uninstallPkg(pkg);
+                setStrings(Const.Key.SU_REQUESTER, null);
+            }
+        }
    }

    @Override
--- a/src/main/java/com/topjohnwu/magisk/utils/ShowUI.java
+++ b/src/main/java/com/topjohnwu/magisk/utils/ShowUI.java
@ -239,7 +239,6 @@ public class ShowUI {
                    Utils.fmt("MagiskManager-v%s.apk", mm.remoteManagerVersionString)))
            .setCancelable(true)
            .setPositiveButton(R.string.install, (d, i) -> {
-                Utils.dumpPrefs();
                Utils.runWithPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE, () -> {
                    Intent intent = new Intent(mm, ManagerUpdate.class);
                    intent.putExtra(Const.Key.INTENT_SET_LINK, mm.managerLink);
--- a/src/main/java/com/topjohnwu/magisk/utils/Utils.java
+++ b/src/main/java/com/topjohnwu/magisk/utils/Utils.java
@ -62,9 +62,9 @@ public class Utils {
        return Shell.su(fmt("cat %s | sed '$a\\ ' | sed '$d'", path));
    }

-    public static String checkMD5(Object path) {
-        List<String> ret = Shell.su(fmt("md5sum %s", path));
-        return isValidShellResponse(ret) ? ret.get(0).split("\\s+")[0] : null;
+    public static String checkInode(Object path) {
+        List<String> ret = Shell.su(fmt("ls -i %s", path));
+        return isValidShellResponse(ret) ? ret.get(0).trim().split("\\s+")[0] : null;
    }

    public static void uninstallPkg(String pkg) {
--- a/src/main/res/values-el/strings.xml
+++ b/src/main/res/values-el/strings.xml
@ -1,6 +1,5 @@
 <resources>
    <!--Welcome Activity-->
-    <string name="magiskhide" translatable="false">Απόκρυψη του Magisk</string>
    <string name="modules">Modules</string>
 	
    <string name="downloads">Λήψεις</string>