mirror of https://github.com/M66B/FairEmail.git
Prevent database deletion
This commit is contained in:
M66B
parent
8f82bdbe36
commit
bf9e353754
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@ -8,6 +8,7 @@ import android.content.SharedPreferences;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteDatabaseCorruptException;
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import android.database.sqlite.SQLiteException;
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import android.net.Uri;
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import android.text.TextUtils;
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@ -448,78 +449,100 @@ public abstract class DB extends RoomDatabase {
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@Override
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public void onOpen(@NonNull SupportSQLiteDatabase db) {
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Map<String, String> crumb = new HashMap<>();
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crumb.put("version", Integer.toString(db.getVersion()));
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crumb.put("WAL", Boolean.toString(db.isWriteAheadLoggingEnabled()));
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Log.breadcrumb("Database", crumb);
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try {
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Map<String, String> crumb = new HashMap<>();
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crumb.put("version", Integer.toString(db.getVersion()));
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crumb.put("WAL", Boolean.toString(db.isWriteAheadLoggingEnabled()));
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Log.breadcrumb("Database", crumb);
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// https://www.sqlite.org/pragma.html#pragma_auto_vacuum
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// https://android.googlesource.com/platform/external/sqlite.git/+/6ab557bdc070f11db30ede0696888efd19800475%5E!/
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boolean sqlite_auto_vacuum = prefs.getBoolean("sqlite_auto_vacuum", false);
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String mode = (sqlite_auto_vacuum ? "FULL" : "INCREMENTAL");
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Log.i("Set PRAGMA auto_vacuum=" + mode);
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try (Cursor cursor = db.query("PRAGMA auto_vacuum=" + mode + ";")) {
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cursor.moveToNext(); // required
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}
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// https://sqlite.org/pragma.html#pragma_synchronous
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boolean sqlite_sync_extra = prefs.getBoolean("sqlite_sync_extra", true);
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String sync = (sqlite_sync_extra ? "EXTRA" : "NORMAL");
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Log.i("Set PRAGMA synchronous=" + sync);
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try (Cursor cursor = db.query("PRAGMA synchronous=" + sync + ";")) {
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cursor.moveToNext(); // required
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}
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// https://www.sqlite.org/pragma.html#pragma_journal_size_limit
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Log.i("Set PRAGMA journal_size_limit=" + DB_JOURNAL_SIZE_LIMIT);
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try (Cursor cursor = db.query("PRAGMA journal_size_limit=" + DB_JOURNAL_SIZE_LIMIT + ";")) {
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cursor.moveToNext(); // required
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}
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// https://www.sqlite.org/pragma.html#pragma_cache_size
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Integer cache_size = getCacheSizeKb(context);
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if (cache_size != null) {
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cache_size = -cache_size; // kibibytes
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Log.i("Set PRAGMA cache_size=" + cache_size);
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// TODO CASA PRAGMA does not support placeholders
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try (Cursor cursor = db.query("PRAGMA cache_size=" + cache_size + ";")) {
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// https://www.sqlite.org/pragma.html#pragma_auto_vacuum
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// https://android.googlesource.com/platform/external/sqlite.git/+/6ab557bdc070f11db30ede0696888efd19800475%5E!/
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boolean sqlite_auto_vacuum = prefs.getBoolean("sqlite_auto_vacuum", false);
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String mode = (sqlite_auto_vacuum ? "FULL" : "INCREMENTAL");
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Log.i("Set PRAGMA auto_vacuum=" + mode);
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try (Cursor cursor = db.query("PRAGMA auto_vacuum=" + mode + ";")) {
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cursor.moveToNext(); // required
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}
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}
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// Prevent long running operations from getting an exclusive lock
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// https://www.sqlite.org/pragma.html#pragma_cache_spill
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Log.i("Set PRAGMA cache_spill=0");
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try (Cursor cursor = db.query("PRAGMA cache_spill=0;")) {
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cursor.moveToNext(); // required
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}
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// https://sqlite.org/pragma.html#pragma_synchronous
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boolean sqlite_sync_extra = prefs.getBoolean("sqlite_sync_extra", true);
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String sync = (sqlite_sync_extra ? "EXTRA" : "NORMAL");
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Log.i("Set PRAGMA synchronous=" + sync);
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try (Cursor cursor = db.query("PRAGMA synchronous=" + sync + ";")) {
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cursor.moveToNext(); // required
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}
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Log.i("Set PRAGMA recursive_triggers=off");
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try (Cursor cursor = db.query("PRAGMA recursive_triggers=off;")) {
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cursor.moveToNext(); // required
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}
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// https://www.sqlite.org/pragma.html#pragma_journal_size_limit
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Log.i("Set PRAGMA journal_size_limit=" + DB_JOURNAL_SIZE_LIMIT);
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try (Cursor cursor = db.query("PRAGMA journal_size_limit=" + DB_JOURNAL_SIZE_LIMIT + ";")) {
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cursor.moveToNext(); // required
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}
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// https://www.sqlite.org/pragma.html
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for (String pragma : DB_PRAGMAS)
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if (!"compile_options".equals(pragma) || BuildConfig.DEBUG) {
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// https://www.sqlite.org/pragma.html#pragma_cache_size
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Integer cache_size = getCacheSizeKb(context);
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if (cache_size != null) {
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cache_size = -cache_size; // kibibytes
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Log.i("Set PRAGMA cache_size=" + cache_size);
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// TODO CASA PRAGMA does not support placeholders
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try (Cursor cursor = db.query("PRAGMA " + pragma + ";")) {
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boolean has = false;
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while (cursor.moveToNext()) {
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has = true;
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Log.i("Get PRAGMA " + pragma + "=" + (cursor.isNull(0) ? "<null>" : cursor.getString(0)));
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}
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if (!has)
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Log.i("Get PRAGMA " + pragma + "=<?>");
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} catch (Throwable ex) {
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Log.e(ex);
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try (Cursor cursor = db.query("PRAGMA cache_size=" + cache_size + ";")) {
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cursor.moveToNext(); // required
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}
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}
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if (BuildConfig.DEBUG && false)
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dropTriggers(db);
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// Prevent long running operations from getting an exclusive lock
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// https://www.sqlite.org/pragma.html#pragma_cache_spill
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Log.i("Set PRAGMA cache_spill=0");
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try (Cursor cursor = db.query("PRAGMA cache_spill=0;")) {
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cursor.moveToNext(); // required
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}
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createTriggers(db);
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Log.i("Set PRAGMA recursive_triggers=off");
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try (Cursor cursor = db.query("PRAGMA recursive_triggers=off;")) {
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cursor.moveToNext(); // required
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}
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// https://www.sqlite.org/pragma.html
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for (String pragma : DB_PRAGMAS)
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if (!"compile_options".equals(pragma) || BuildConfig.DEBUG) {
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// TODO CASA PRAGMA does not support placeholders
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try (Cursor cursor = db.query("PRAGMA " + pragma + ";")) {
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boolean has = false;
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while (cursor.moveToNext()) {
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has = true;
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Log.i("Get PRAGMA " + pragma + "=" + (cursor.isNull(0) ? "<null>" : cursor.getString(0)));
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}
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if (!has)
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Log.i("Get PRAGMA " + pragma + "=<?>");
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} catch (Throwable ex) {
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Log.e(ex);
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}
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}
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if (BuildConfig.DEBUG && false)
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dropTriggers(db);
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createTriggers(db);
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} catch (SQLiteException ex) {
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/*
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at eu.faircode.email.DB$6.onOpen(DB.java:522)
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at eu.faircode.email.DB_Impl$1.onOpen(DB_Impl.java:171)
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at androidx.room.RoomOpenHelper.onOpen(RoomOpenHelper.java:136)
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at androidx.sqlite.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.onOpen(FrameworkSQLiteOpenHelper.kt:287)
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at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:427)
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at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:316)
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at androidx.sqlite.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.getWritableOrReadableDatabase(FrameworkSQLiteOpenHelper.kt:232)
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at androidx.sqlite.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.innerGetDatabase(FrameworkSQLiteOpenHelper.kt:190)
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at androidx.sqlite.db.framework.FrameworkSQLiteOpenHelper$OpenHelper.getSupportDatabase(FrameworkSQLiteOpenHelper.kt:151)
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at androidx.sqlite.db.framework.FrameworkSQLiteOpenHelper.getWritableDatabase(FrameworkSQLiteOpenHelper.kt:104)
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at androidx.room.RoomDatabase.inTransaction(RoomDatabase.java:706)
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*/
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Log.e(ex);
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// FrameworkSQLiteOpenHelper.innerGetDatabase will delete the database
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if (ex instanceof SQLiteDatabaseCorruptException)
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throw ex;
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else
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throw new RuntimeException("Open failed", ex);
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}
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}
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@Override
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