mirror of
https://github.com/topjohnwu/Magisk.git
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313 lines
12 KiB
Java
313 lines
12 KiB
Java
package com.topjohnwu.magisk.database;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.pm.PackageManager;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.os.Build;
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import android.os.Process;
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import android.support.annotation.NonNull;
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import android.text.TextUtils;
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import android.widget.Toast;
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import com.topjohnwu.magisk.MagiskManager;
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import com.topjohnwu.magisk.R;
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import com.topjohnwu.magisk.container.Policy;
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import com.topjohnwu.magisk.container.SuLogEntry;
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import com.topjohnwu.magisk.utils.Const;
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import com.topjohnwu.magisk.utils.Utils;
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import com.topjohnwu.superuser.Shell;
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import com.topjohnwu.superuser.io.SuFile;
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import java.io.File;
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import java.text.DateFormat;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Date;
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import java.util.List;
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public class SuDatabaseHelper {
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private static final int DATABASE_VER = 5;
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private static final String POLICY_TABLE = "policies";
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private static final String LOG_TABLE = "logs";
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private static final String SETTINGS_TABLE = "settings";
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private static final String STRINGS_TABLE = "strings";
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private PackageManager pm;
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private SQLiteDatabase mDb;
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private File DB_FILE;
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@NonNull
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public static SuDatabaseHelper getInstance(MagiskManager mm) {
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try {
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return new SuDatabaseHelper(mm);
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} catch (Exception e) {
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// Let's cleanup everything and try again
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Shell.Sync.su("sudb_clean '*'");
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return new SuDatabaseHelper(mm);
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}
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}
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private SuDatabaseHelper(MagiskManager mm) {
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pm = mm.getPackageManager();
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mDb = openDatabase(mm);
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mDb.disableWriteAheadLogging();
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int version = mDb.getVersion();
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if (version < DATABASE_VER) {
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onUpgrade(mDb, version);
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} else if (version > DATABASE_VER) {
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onDowngrade(mDb);
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}
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mDb.setVersion(DATABASE_VER);
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clearOutdated();
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}
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private SQLiteDatabase openDatabase(MagiskManager mm) {
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final SuFile GLOBAL_DB = new SuFile("/data/adb/magisk.db", true);
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DB_FILE = new File(Utils.fmt("/sbin/.core/db-%d/magisk.db", Const.USER_ID));
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Context de = Build.VERSION.SDK_INT >= Build.VERSION_CODES.N
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? mm.createDeviceProtectedStorageContext() : mm;
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if (!DB_FILE.canWrite()) {
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if (!Shell.rootAccess()) {
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// We don't want the app to crash, create a db and return
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DB_FILE = mm.getDatabasePath("su.db");
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return mm.openOrCreateDatabase("su.db", Context.MODE_PRIVATE, null);
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}
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mm.loadMagiskInfo();
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// Cleanup
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Shell.Sync.su("sudb_clean " + Const.USER_ID);
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if (mm.magiskVersionCode < 1410) {
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// Super old legacy mode
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DB_FILE = mm.getDatabasePath("su.db");
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return mm.openOrCreateDatabase("su.db", Context.MODE_PRIVATE, null);
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} else if (mm.magiskVersionCode < 1450) {
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// Legacy mode with FBE aware
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
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de.moveDatabaseFrom(mm, "su.db");
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}
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DB_FILE = de.getDatabasePath("su.db");
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return de.openOrCreateDatabase("su.db", Context.MODE_PRIVATE, null);
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} else {
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mm.deleteDatabase("su.db");
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de.deleteDatabase("su.db");
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if (mm.magiskVersionCode < 1460) {
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// Link to new path
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File oldDB = new File(de.getFilesDir().getParentFile().getParentFile(),
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"magisk.db");
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Shell.Sync.su(Utils.fmt("mv -f %s %s; ln -s %s %s",
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oldDB, GLOBAL_DB, GLOBAL_DB, oldDB));
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}
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if (mm.magiskVersionCode < 1550) {
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// We need some additional policies on old versions
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Shell.Sync.su("magiskpolicy --live " +
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"'create su_file' 'allow * su_file file *' 'allow * su_file dir *'");
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}
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if (!GLOBAL_DB.exists()) {
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Shell.Sync.su("sudb_init");
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SQLiteDatabase.openOrCreateDatabase(GLOBAL_DB, null).close();
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Shell.Sync.su("sudb_restore");
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}
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Shell.Sync.su("sudb_setup " + Process.myUid());
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}
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}
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// Not using legacy mode, open the mounted global DB
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return SQLiteDatabase.openOrCreateDatabase(DB_FILE, null);
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}
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public void onUpgrade(SQLiteDatabase db, int oldVersion) {
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if (oldVersion == 0) {
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createTables(db);
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oldVersion = 3;
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}
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if (oldVersion == 1) {
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// We're dropping column app_name, rename and re-construct table
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db.execSQL(Utils.fmt("ALTER TABLE %s RENAME TO %s_old", POLICY_TABLE));
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// Create the new tables
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createTables(db);
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// Migrate old data to new tables
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db.execSQL(Utils.fmt("INSERT INTO %s SELECT " +
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"uid, package_name, policy, until, logging, notification FROM %s_old",
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POLICY_TABLE, POLICY_TABLE));
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db.execSQL(Utils.fmt("DROP TABLE %s_old", POLICY_TABLE));
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MagiskManager.get().deleteDatabase("sulog.db");
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++oldVersion;
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}
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if (oldVersion == 2) {
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db.execSQL(Utils.fmt("UPDATE %s SET time=time*1000", LOG_TABLE));
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++oldVersion;
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}
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if (oldVersion == 3) {
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db.execSQL(Utils.fmt("CREATE TABLE IF NOT EXISTS %s (key TEXT, value TEXT, PRIMARY KEY(key))", STRINGS_TABLE));
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++oldVersion;
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}
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if (oldVersion == 4) {
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db.execSQL(Utils.fmt("UPDATE %s SET uid=uid%%100000", POLICY_TABLE));
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++oldVersion;
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}
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}
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// Remove everything, we do not support downgrade
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public void onDowngrade(SQLiteDatabase db) {
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MagiskManager.toast(R.string.su_db_corrupt, Toast.LENGTH_LONG);
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db.execSQL("DROP TABLE IF EXISTS " + POLICY_TABLE);
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db.execSQL("DROP TABLE IF EXISTS " + LOG_TABLE);
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db.execSQL("DROP TABLE IF EXISTS " + SETTINGS_TABLE);
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db.execSQL("DROP TABLE IF EXISTS " + STRINGS_TABLE);
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onUpgrade(db, 0);
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}
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private void createTables(SQLiteDatabase db) {
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// Policies
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db.execSQL(
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"CREATE TABLE IF NOT EXISTS " + POLICY_TABLE + " " +
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"(uid INT, package_name TEXT, policy INT, " +
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"until INT, logging INT, notification INT, " +
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"PRIMARY KEY(uid))");
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// Logs
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db.execSQL(
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"CREATE TABLE IF NOT EXISTS " + LOG_TABLE + " " +
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"(from_uid INT, package_name TEXT, app_name TEXT, from_pid INT, " +
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"to_uid INT, action INT, time INT, command TEXT)");
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// Settings
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db.execSQL(
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"CREATE TABLE IF NOT EXISTS " + SETTINGS_TABLE + " " +
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"(key TEXT, value INT, PRIMARY KEY(key))");
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}
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public void clearOutdated() {
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// Clear outdated policies
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mDb.delete(POLICY_TABLE, Utils.fmt("until > 0 AND until < %d", System.currentTimeMillis() / 1000), null);
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// Clear outdated logs
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mDb.delete(LOG_TABLE, Utils.fmt("time < %d", System.currentTimeMillis() - MagiskManager.get().suLogTimeout * 86400000), null);
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}
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public void deletePolicy(Policy policy) {
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deletePolicy(policy.uid);
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}
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public void deletePolicy(String pkg) {
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mDb.delete(POLICY_TABLE, "package_name=?", new String[] { pkg });
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}
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public void deletePolicy(int uid) {
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mDb.delete(POLICY_TABLE, Utils.fmt("uid=%d", uid), null);
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}
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public Policy getPolicy(int uid) {
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Policy policy = null;
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try (Cursor c = mDb.query(POLICY_TABLE, null, Utils.fmt("uid=%d", uid), null, null, null, null)) {
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if (c.moveToNext()) {
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policy = new Policy(c, pm);
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}
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} catch (PackageManager.NameNotFoundException e) {
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deletePolicy(uid);
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return null;
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}
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return policy;
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}
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public void addPolicy(Policy policy) {
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mDb.replace(POLICY_TABLE, null, policy.getContentValues());
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}
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public void updatePolicy(Policy policy) {
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mDb.update(POLICY_TABLE, policy.getContentValues(), Utils.fmt("uid=%d", policy.uid), null);
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}
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public List<Policy> getPolicyList(PackageManager pm) {
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try (Cursor c = mDb.query(POLICY_TABLE, null, Utils.fmt("uid/100000=%d", Const.USER_ID),
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null, null, null, null)) {
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List<Policy> ret = new ArrayList<>(c.getCount());
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while (c.moveToNext()) {
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try {
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Policy policy = new Policy(c, pm);
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ret.add(policy);
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} catch (PackageManager.NameNotFoundException e) {
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// The app no longer exist, remove from DB
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deletePolicy(c.getInt(c.getColumnIndex("uid")));
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}
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}
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Collections.sort(ret);
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return ret;
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}
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}
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public List<List<Integer>> getLogStructure() {
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try (Cursor c = mDb.query(LOG_TABLE, new String[] { "time" }, Utils.fmt("from_uid/100000=%d", Const.USER_ID),
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null, null, null, "time DESC")) {
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List<List<Integer>> ret = new ArrayList<>();
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List<Integer> list = null;
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String dateString = null, newString;
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while (c.moveToNext()) {
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Date date = new Date(c.getLong(c.getColumnIndex("time")));
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newString = DateFormat.getDateInstance(DateFormat.MEDIUM, MagiskManager.locale).format(date);
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if (!TextUtils.equals(dateString, newString)) {
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dateString = newString;
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list = new ArrayList<>();
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ret.add(list);
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}
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list.add(c.getPosition());
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}
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return ret;
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}
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}
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public Cursor getLogCursor() {
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return mDb.query(LOG_TABLE, null, Utils.fmt("from_uid/100000=%d", Const.USER_ID),
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null, null, null, "time DESC");
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}
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public void addLog(SuLogEntry log) {
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mDb.insert(LOG_TABLE, null, log.getContentValues());
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}
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public void clearLogs() {
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mDb.delete(LOG_TABLE, null, null);
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}
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public void setSettings(String key, int value) {
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ContentValues data = new ContentValues();
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data.put("key", key);
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data.put("value", value);
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mDb.replace(SETTINGS_TABLE, null, data);
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}
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public int getSettings(String key, int defaultValue) {
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int value = defaultValue;
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try (Cursor c = mDb.query(SETTINGS_TABLE, null, "key=?",new String[] { key }, null, null, null)) {
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if (c.moveToNext()) {
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value = c.getInt(c.getColumnIndex("value"));
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}
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}
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return value;
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}
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public void setStrings(String key, String value) {
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if (value == null) {
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mDb.delete(STRINGS_TABLE, "key=?", new String[] { key });
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} else {
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ContentValues data = new ContentValues();
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data.put("key", key);
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data.put("value", value);
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mDb.replace(STRINGS_TABLE, null, data);
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}
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}
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public String getStrings(String key, String defaultValue) {
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String value = defaultValue;
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try (Cursor c = mDb.query(STRINGS_TABLE, null, "key=?",new String[] { key }, null, null, null)) {
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if (c.moveToNext()) {
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value = c.getString(c.getColumnIndex("value"));
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}
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}
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return value;
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}
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}
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