DatabaseBackend.java

   1package eu.siacs.conversations.persistance;
   2
   3import android.content.ContentValues;
   4import android.content.Context;
   5import android.database.Cursor;
   6import android.database.DatabaseUtils;
   7import android.database.sqlite.SQLiteDatabase;
   8import android.database.sqlite.SQLiteOpenHelper;
   9import android.os.Environment;
  10import android.os.SystemClock;
  11import android.util.Base64;
  12import android.util.Log;
  13
  14import com.cheogram.android.WebxdcUpdate;
  15
  16import com.google.common.base.Stopwatch;
  17import com.google.common.collect.Multimap;
  18import com.google.common.collect.HashMultimap;
  19
  20import org.json.JSONException;
  21import org.json.JSONObject;
  22import org.whispersystems.libsignal.IdentityKey;
  23import org.whispersystems.libsignal.IdentityKeyPair;
  24import org.whispersystems.libsignal.InvalidKeyException;
  25import org.whispersystems.libsignal.SignalProtocolAddress;
  26import org.whispersystems.libsignal.state.PreKeyRecord;
  27import org.whispersystems.libsignal.state.SessionRecord;
  28import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  29
  30import java.io.ByteArrayInputStream;
  31import java.io.File;
  32import java.io.IOException;
  33import java.security.cert.CertificateEncodingException;
  34import java.security.cert.CertificateException;
  35import java.security.cert.CertificateFactory;
  36import java.security.cert.X509Certificate;
  37import java.util.ArrayList;
  38import java.util.HashMap;
  39import java.util.HashSet;
  40import java.util.List;
  41import java.util.Map;
  42import java.util.Set;
  43import java.util.UUID;
  44import java.util.concurrent.CopyOnWriteArrayList;
  45
  46import io.ipfs.cid.Cid;
  47
  48import eu.siacs.conversations.Config;
  49import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  50import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  51import eu.siacs.conversations.crypto.axolotl.SQLiteAxolotlStore;
  52import eu.siacs.conversations.entities.Account;
  53import eu.siacs.conversations.entities.Contact;
  54import eu.siacs.conversations.entities.Conversation;
  55import eu.siacs.conversations.entities.DownloadableFile;
  56import eu.siacs.conversations.entities.Message;
  57import eu.siacs.conversations.entities.MucOptions;
  58import eu.siacs.conversations.entities.PresenceTemplate;
  59import eu.siacs.conversations.entities.Roster;
  60import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  61import eu.siacs.conversations.services.QuickConversationsService;
  62import eu.siacs.conversations.services.ShortcutService;
  63import eu.siacs.conversations.utils.CryptoHelper;
  64import eu.siacs.conversations.utils.CursorUtils;
  65import eu.siacs.conversations.utils.FtsUtils;
  66import eu.siacs.conversations.utils.MimeUtils;
  67import eu.siacs.conversations.utils.Resolver;
  68import eu.siacs.conversations.xmpp.InvalidJid;
  69import eu.siacs.conversations.xmpp.Jid;
  70import eu.siacs.conversations.xmpp.mam.MamReference;
  71
  72public class DatabaseBackend extends SQLiteOpenHelper {
  73
  74    private static final String DATABASE_NAME = "history";
  75    private static final int DATABASE_VERSION = 51;
  76
  77    private static boolean requiresMessageIndexRebuild = false;
  78    private static DatabaseBackend instance = null;
  79    private static final String CREATE_CONTATCS_STATEMENT = "create table "
  80            + Contact.TABLENAME + "(" + Contact.ACCOUNT + " TEXT, "
  81            + Contact.SERVERNAME + " TEXT, " + Contact.SYSTEMNAME + " TEXT,"
  82            + Contact.PRESENCE_NAME + " TEXT,"
  83            + Contact.JID + " TEXT," + Contact.KEYS + " TEXT,"
  84            + Contact.PHOTOURI + " TEXT," + Contact.OPTIONS + " NUMBER,"
  85            + Contact.SYSTEMACCOUNT + " NUMBER, " + Contact.AVATAR + " TEXT, "
  86            + Contact.LAST_PRESENCE + " TEXT, " + Contact.LAST_TIME + " NUMBER, "
  87            + Contact.RTP_CAPABILITY + " TEXT,"
  88            + Contact.GROUPS + " TEXT, FOREIGN KEY(" + Contact.ACCOUNT + ") REFERENCES "
  89            + Account.TABLENAME + "(" + Account.UUID
  90            + ") ON DELETE CASCADE, UNIQUE(" + Contact.ACCOUNT + ", "
  91            + Contact.JID + ") ON CONFLICT REPLACE);";
  92
  93    private static final String CREATE_DISCOVERY_RESULTS_STATEMENT = "create table "
  94            + ServiceDiscoveryResult.TABLENAME + "("
  95            + ServiceDiscoveryResult.HASH + " TEXT, "
  96            + ServiceDiscoveryResult.VER + " TEXT, "
  97            + ServiceDiscoveryResult.RESULT + " TEXT, "
  98            + "UNIQUE(" + ServiceDiscoveryResult.HASH + ", "
  99            + ServiceDiscoveryResult.VER + ") ON CONFLICT REPLACE);";
 100
 101    private static final String CREATE_PRESENCE_TEMPLATES_STATEMENT = "CREATE TABLE "
 102            + PresenceTemplate.TABELNAME + "("
 103            + PresenceTemplate.UUID + " TEXT, "
 104            + PresenceTemplate.LAST_USED + " NUMBER,"
 105            + PresenceTemplate.MESSAGE + " TEXT,"
 106            + PresenceTemplate.STATUS + " TEXT,"
 107            + "UNIQUE(" + PresenceTemplate.MESSAGE + "," + PresenceTemplate.STATUS + ") ON CONFLICT REPLACE);";
 108
 109    private static final String CREATE_PREKEYS_STATEMENT = "CREATE TABLE "
 110            + SQLiteAxolotlStore.PREKEY_TABLENAME + "("
 111            + SQLiteAxolotlStore.ACCOUNT + " TEXT,  "
 112            + SQLiteAxolotlStore.ID + " INTEGER, "
 113            + SQLiteAxolotlStore.KEY + " TEXT, FOREIGN KEY("
 114            + SQLiteAxolotlStore.ACCOUNT
 115            + ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
 116            + "UNIQUE( " + SQLiteAxolotlStore.ACCOUNT + ", "
 117            + SQLiteAxolotlStore.ID
 118            + ") ON CONFLICT REPLACE"
 119            + ");";
 120
 121    private static final String CREATE_SIGNED_PREKEYS_STATEMENT = "CREATE TABLE "
 122            + SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME + "("
 123            + SQLiteAxolotlStore.ACCOUNT + " TEXT,  "
 124            + SQLiteAxolotlStore.ID + " INTEGER, "
 125            + SQLiteAxolotlStore.KEY + " TEXT, FOREIGN KEY("
 126            + SQLiteAxolotlStore.ACCOUNT
 127            + ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
 128            + "UNIQUE( " + SQLiteAxolotlStore.ACCOUNT + ", "
 129            + SQLiteAxolotlStore.ID
 130            + ") ON CONFLICT REPLACE" +
 131            ");";
 132
 133    private static final String CREATE_SESSIONS_STATEMENT = "CREATE TABLE "
 134            + SQLiteAxolotlStore.SESSION_TABLENAME + "("
 135            + SQLiteAxolotlStore.ACCOUNT + " TEXT,  "
 136            + SQLiteAxolotlStore.NAME + " TEXT, "
 137            + SQLiteAxolotlStore.DEVICE_ID + " INTEGER, "
 138            + SQLiteAxolotlStore.KEY + " TEXT, FOREIGN KEY("
 139            + SQLiteAxolotlStore.ACCOUNT
 140            + ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
 141            + "UNIQUE( " + SQLiteAxolotlStore.ACCOUNT + ", "
 142            + SQLiteAxolotlStore.NAME + ", "
 143            + SQLiteAxolotlStore.DEVICE_ID
 144            + ") ON CONFLICT REPLACE"
 145            + ");";
 146
 147    private static final String CREATE_IDENTITIES_STATEMENT = "CREATE TABLE "
 148            + SQLiteAxolotlStore.IDENTITIES_TABLENAME + "("
 149            + SQLiteAxolotlStore.ACCOUNT + " TEXT,  "
 150            + SQLiteAxolotlStore.NAME + " TEXT, "
 151            + SQLiteAxolotlStore.OWN + " INTEGER, "
 152            + SQLiteAxolotlStore.FINGERPRINT + " TEXT, "
 153            + SQLiteAxolotlStore.CERTIFICATE + " BLOB, "
 154            + SQLiteAxolotlStore.TRUST + " TEXT, "
 155            + SQLiteAxolotlStore.ACTIVE + " NUMBER, "
 156            + SQLiteAxolotlStore.LAST_ACTIVATION + " NUMBER,"
 157            + SQLiteAxolotlStore.KEY + " TEXT, FOREIGN KEY("
 158            + SQLiteAxolotlStore.ACCOUNT
 159            + ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
 160            + "UNIQUE( " + SQLiteAxolotlStore.ACCOUNT + ", "
 161            + SQLiteAxolotlStore.NAME + ", "
 162            + SQLiteAxolotlStore.FINGERPRINT
 163            + ") ON CONFLICT IGNORE"
 164            + ");";
 165
 166    private static final String RESOLVER_RESULTS_TABLENAME = "resolver_results";
 167
 168    private static final String CREATE_RESOLVER_RESULTS_TABLE = "create table " + RESOLVER_RESULTS_TABLENAME + "("
 169            + Resolver.Result.DOMAIN + " TEXT,"
 170            + Resolver.Result.HOSTNAME + " TEXT,"
 171            + Resolver.Result.IP + " BLOB,"
 172            + Resolver.Result.PRIORITY + " NUMBER,"
 173            + Resolver.Result.DIRECT_TLS + " NUMBER,"
 174            + Resolver.Result.AUTHENTICATED + " NUMBER,"
 175            + Resolver.Result.PORT + " NUMBER,"
 176            + "UNIQUE(" + Resolver.Result.DOMAIN + ") ON CONFLICT REPLACE"
 177            + ");";
 178
 179    private static final String CREATE_MESSAGE_TIME_INDEX = "CREATE INDEX message_time_index ON " + Message.TABLENAME + "(" + Message.TIME_SENT + ")";
 180    private static final String CREATE_MESSAGE_CONVERSATION_INDEX = "CREATE INDEX message_conversation_index ON " + Message.TABLENAME + "(" + Message.CONVERSATION + ")";
 181    private static final String CREATE_MESSAGE_DELETED_INDEX = "CREATE INDEX message_deleted_index ON " + Message.TABLENAME + "(" + Message.DELETED + ")";
 182    private static final String CREATE_MESSAGE_RELATIVE_FILE_PATH_INDEX = "CREATE INDEX message_file_path_index ON " + Message.TABLENAME + "(" + Message.RELATIVE_FILE_PATH + ")";
 183    private static final String CREATE_MESSAGE_TYPE_INDEX = "CREATE INDEX message_type_index ON " + Message.TABLENAME + "(" + Message.TYPE + ")";
 184
 185    private static final String CREATE_MESSAGE_INDEX_TABLE = "CREATE VIRTUAL TABLE messages_index USING fts4 (uuid,body,notindexed=\"uuid\",content=\"" + Message.TABLENAME + "\",tokenize='unicode61')";
 186    private static final String CREATE_MESSAGE_INSERT_TRIGGER = "CREATE TRIGGER after_message_insert AFTER INSERT ON " + Message.TABLENAME + " BEGIN INSERT INTO messages_index(rowid,uuid,body) VALUES(NEW.rowid,NEW.uuid,NEW.body); END;";
 187    private static final String CREATE_MESSAGE_UPDATE_TRIGGER = "CREATE TRIGGER after_message_update UPDATE OF uuid,body ON " + Message.TABLENAME + " BEGIN UPDATE messages_index SET body=NEW.body,uuid=NEW.uuid WHERE rowid=OLD.rowid; END;";
 188    private static final String CREATE_MESSAGE_DELETE_TRIGGER = "CREATE TRIGGER after_message_delete AFTER DELETE ON " + Message.TABLENAME + " BEGIN DELETE FROM messages_index WHERE rowid=OLD.rowid; END;";
 189    private static final String COPY_PREEXISTING_ENTRIES = "INSERT INTO messages_index(messages_index) VALUES('rebuild');";
 190
 191    protected Context context;
 192
 193    private DatabaseBackend(Context context) {
 194        super(context, DATABASE_NAME, null, DATABASE_VERSION);
 195        this.context = context;
 196        setWriteAheadLoggingEnabled(true);
 197    }
 198
 199    private static ContentValues createFingerprintStatusContentValues(FingerprintStatus.Trust trust, boolean active) {
 200        ContentValues values = new ContentValues();
 201        values.put(SQLiteAxolotlStore.TRUST, trust.toString());
 202        values.put(SQLiteAxolotlStore.ACTIVE, active ? 1 : 0);
 203        return values;
 204    }
 205
 206    public static boolean requiresMessageIndexRebuild() {
 207        return requiresMessageIndexRebuild;
 208    }
 209
 210    public void rebuildMessagesIndex() {
 211        final SQLiteDatabase db = getWritableDatabase();
 212        final Stopwatch stopwatch = Stopwatch.createStarted();
 213        db.execSQL(COPY_PREEXISTING_ENTRIES);
 214        Log.d(Config.LOGTAG,"rebuilt message index in "+ stopwatch.stop().toString());
 215    }
 216
 217    public static synchronized DatabaseBackend getInstance(Context context) {
 218        if (instance == null) {
 219            instance = new DatabaseBackend(context);
 220        }
 221        return instance;
 222    }
 223
 224    protected void cheogramMigrate(SQLiteDatabase db) {
 225        db.beginTransaction();
 226
 227        try {
 228            Cursor cursor = db.rawQuery("PRAGMA cheogram.user_version", null);
 229            cursor.moveToNext();
 230            int cheogramVersion = cursor.getInt(0);
 231            cursor.close();
 232
 233            if(cheogramVersion < 1) {
 234                // No cross-DB foreign keys unfortunately
 235                db.execSQL(
 236                    "CREATE TABLE cheogram." + Message.TABLENAME + "(" +
 237                    Message.UUID + " TEXT PRIMARY KEY, " +
 238                    "subject TEXT" +
 239                    ")"
 240                );
 241                db.execSQL("PRAGMA cheogram.user_version = 1");
 242            }
 243
 244            if(cheogramVersion < 2) {
 245                db.execSQL(
 246                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 247                    "ADD COLUMN oobUri TEXT"
 248                );
 249                db.execSQL(
 250                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 251                    "ADD COLUMN fileParams TEXT"
 252                );
 253                db.execSQL("PRAGMA cheogram.user_version = 2");
 254            }
 255
 256            if(cheogramVersion < 3) {
 257                db.execSQL(
 258                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 259                    "ADD COLUMN payloads TEXT"
 260                );
 261                db.execSQL("PRAGMA cheogram.user_version = 3");
 262            }
 263
 264            if(cheogramVersion < 4) {
 265                db.execSQL(
 266                    "CREATE TABLE cheogram.cids (" +
 267                    "cid TEXT NOT NULL PRIMARY KEY," +
 268                    "path TEXT NOT NULL" +
 269                    ")"
 270                );
 271                db.execSQL("PRAGMA cheogram.user_version = 4");
 272            }
 273
 274            if(cheogramVersion < 5) {
 275                db.execSQL(
 276                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 277                    "ADD COLUMN timeReceived NUMBER"
 278                );
 279                db.execSQL("CREATE INDEX cheogram.message_time_received_index ON " + Message.TABLENAME + " (timeReceived)");
 280                db.execSQL("PRAGMA cheogram.user_version = 5");
 281            }
 282
 283            if(cheogramVersion < 6) {
 284                db.execSQL(
 285                    "CREATE TABLE cheogram.blocked_media (" +
 286                    "cid TEXT NOT NULL PRIMARY KEY" +
 287                    ")"
 288                );
 289                db.execSQL("PRAGMA cheogram.user_version = 6");
 290            }
 291
 292            if(cheogramVersion < 7) {
 293                db.execSQL(
 294                    "ALTER TABLE cheogram.cids " +
 295                    "ADD COLUMN url TEXT"
 296                );
 297                db.execSQL("PRAGMA cheogram.user_version = 7");
 298            }
 299
 300            if(cheogramVersion < 8) {
 301                db.execSQL(
 302                    "CREATE TABLE cheogram.webxdc_updates (" +
 303                    "serial INTEGER PRIMARY KEY AUTOINCREMENT, " +
 304                    Message.CONVERSATION + " TEXT NOT NULL, " +
 305                    "sender TEXT NOT NULL, " +
 306                    "thread TEXT NOT NULL, " +
 307                    "threadParent TEXT, " +
 308                    "info TEXT, " +
 309                    "document TEXT, " +
 310                    "summary TEXT, " +
 311                    "payload TEXT" +
 312                    ")"
 313                );
 314                db.execSQL("CREATE INDEX cheogram.webxdc_index ON webxdc_updates (" + Message.CONVERSATION + ", thread)");
 315                db.execSQL("PRAGMA cheogram.user_version = 8");
 316				}
 317
 318            if(cheogramVersion < 9) {
 319                db.execSQL(
 320                    "ALTER TABLE cheogram.webxdc_updates " +
 321                    "ADD COLUMN message_id TEXT"
 322                );
 323                db.execSQL("CREATE UNIQUE INDEX cheogram.webxdc_message_id_index ON webxdc_updates (" + Message.CONVERSATION + ", message_id)");
 324                db.execSQL("PRAGMA cheogram.user_version = 9");
 325            }
 326
 327            if(cheogramVersion < 10) {
 328                db.execSQL(
 329                    "CREATE TABLE cheogram.muted_participants (" +
 330                    "muc_jid TEXT NOT NULL, " +
 331                    "occupant_id TEXT NOT NULL, " +
 332                    "nick TEXT NOT NULL," +
 333                    "PRIMARY KEY (muc_jid, occupant_id)" +
 334                    ")"
 335                );
 336                db.execSQL(
 337                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 338                    "ADD COLUMN occupant_id TEXT"
 339                );
 340                db.execSQL("PRAGMA cheogram.user_version = 10");
 341            }
 342
 343            db.setTransactionSuccessful();
 344        } finally {
 345            db.endTransaction();
 346        }
 347    }
 348
 349    @Override
 350    public void onConfigure(SQLiteDatabase db) {
 351        db.execSQL("PRAGMA foreign_keys=ON");
 352        db.rawQuery("PRAGMA secure_delete=ON", null).close();
 353        db.execSQL("ATTACH DATABASE ? AS cheogram", new Object[]{context.getDatabasePath("cheogram").getPath()});
 354        cheogramMigrate(db);
 355    }
 356
 357    @Override
 358    public void onCreate(SQLiteDatabase db) {
 359        db.execSQL("create table " + Account.TABLENAME + "(" + Account.UUID + " TEXT PRIMARY KEY,"
 360                + Account.USERNAME + " TEXT,"
 361                + Account.SERVER + " TEXT,"
 362                + Account.PASSWORD + " TEXT,"
 363                + Account.DISPLAY_NAME + " TEXT, "
 364                + Account.STATUS + " TEXT,"
 365                + Account.STATUS_MESSAGE + " TEXT,"
 366                + Account.ROSTERVERSION + " TEXT,"
 367                + Account.OPTIONS + " NUMBER, "
 368                + Account.AVATAR + " TEXT, "
 369                + Account.KEYS + " TEXT, "
 370                + Account.HOSTNAME + " TEXT, "
 371                + Account.RESOURCE + " TEXT,"
 372                + Account.PINNED_MECHANISM + " TEXT,"
 373                + Account.PINNED_CHANNEL_BINDING + " TEXT,"
 374                + Account.FAST_MECHANISM + " TEXT,"
 375                + Account.FAST_TOKEN + " TEXT,"
 376                + Account.PORT + " NUMBER DEFAULT 5222)");
 377        db.execSQL("create table " + Conversation.TABLENAME + " ("
 378                + Conversation.UUID + " TEXT PRIMARY KEY, " + Conversation.NAME
 379                + " TEXT, " + Conversation.CONTACT + " TEXT, "
 380                + Conversation.ACCOUNT + " TEXT, " + Conversation.CONTACTJID
 381                + " TEXT, " + Conversation.CREATED + " NUMBER, "
 382                + Conversation.STATUS + " NUMBER, " + Conversation.MODE
 383                + " NUMBER, " + Conversation.ATTRIBUTES + " TEXT, FOREIGN KEY("
 384                + Conversation.ACCOUNT + ") REFERENCES " + Account.TABLENAME
 385                + "(" + Account.UUID + ") ON DELETE CASCADE);");
 386        db.execSQL("create table " + Message.TABLENAME + "( " + Message.UUID
 387                + " TEXT PRIMARY KEY, " + Message.CONVERSATION + " TEXT, "
 388                + Message.TIME_SENT + " NUMBER, " + Message.COUNTERPART
 389                + " TEXT, " + Message.TRUE_COUNTERPART + " TEXT,"
 390                + Message.BODY + " TEXT, " + Message.ENCRYPTION + " NUMBER, "
 391                + Message.STATUS + " NUMBER," + Message.TYPE + " NUMBER, "
 392                + Message.RELATIVE_FILE_PATH + " TEXT, "
 393                + Message.SERVER_MSG_ID + " TEXT, "
 394                + Message.FINGERPRINT + " TEXT, "
 395                + Message.CARBON + " INTEGER, "
 396                + Message.EDITED + " TEXT, "
 397                + Message.READ + " NUMBER DEFAULT 1, "
 398                + Message.OOB + " INTEGER, "
 399                + Message.ERROR_MESSAGE + " TEXT,"
 400                + Message.READ_BY_MARKERS + " TEXT,"
 401                + Message.MARKABLE + " NUMBER DEFAULT 0,"
 402                + Message.DELETED + " NUMBER DEFAULT 0,"
 403                + Message.BODY_LANGUAGE + " TEXT,"
 404                + Message.REMOTE_MSG_ID + " TEXT, FOREIGN KEY("
 405                + Message.CONVERSATION + ") REFERENCES "
 406                + Conversation.TABLENAME + "(" + Conversation.UUID
 407                + ") ON DELETE CASCADE);");
 408        db.execSQL(CREATE_MESSAGE_TIME_INDEX);
 409        db.execSQL(CREATE_MESSAGE_CONVERSATION_INDEX);
 410        db.execSQL(CREATE_MESSAGE_DELETED_INDEX);
 411        db.execSQL(CREATE_MESSAGE_RELATIVE_FILE_PATH_INDEX);
 412        db.execSQL(CREATE_MESSAGE_TYPE_INDEX);
 413        db.execSQL(CREATE_CONTATCS_STATEMENT);
 414        db.execSQL(CREATE_DISCOVERY_RESULTS_STATEMENT);
 415        db.execSQL(CREATE_SESSIONS_STATEMENT);
 416        db.execSQL(CREATE_PREKEYS_STATEMENT);
 417        db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT);
 418        db.execSQL(CREATE_IDENTITIES_STATEMENT);
 419        db.execSQL(CREATE_PRESENCE_TEMPLATES_STATEMENT);
 420        db.execSQL(CREATE_RESOLVER_RESULTS_TABLE);
 421        db.execSQL(CREATE_MESSAGE_INDEX_TABLE);
 422        db.execSQL(CREATE_MESSAGE_INSERT_TRIGGER);
 423        db.execSQL(CREATE_MESSAGE_UPDATE_TRIGGER);
 424        db.execSQL(CREATE_MESSAGE_DELETE_TRIGGER);
 425    }
 426
 427    @Override
 428    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 429        if (oldVersion < 2 && newVersion >= 2) {
 430            db.execSQL("update " + Account.TABLENAME + " set "
 431                    + Account.OPTIONS + " = " + Account.OPTIONS + " | 8");
 432        }
 433        if (oldVersion < 3 && newVersion >= 3) {
 434            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 435                    + Message.TYPE + " NUMBER");
 436        }
 437        if (oldVersion < 5 && newVersion >= 5) {
 438            db.execSQL("DROP TABLE " + Contact.TABLENAME);
 439            db.execSQL(CREATE_CONTATCS_STATEMENT);
 440            db.execSQL("UPDATE " + Account.TABLENAME + " SET "
 441                    + Account.ROSTERVERSION + " = NULL");
 442        }
 443        if (oldVersion < 6 && newVersion >= 6) {
 444            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 445                    + Message.TRUE_COUNTERPART + " TEXT");
 446        }
 447        if (oldVersion < 7 && newVersion >= 7) {
 448            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 449                    + Message.REMOTE_MSG_ID + " TEXT");
 450            db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN "
 451                    + Contact.AVATAR + " TEXT");
 452            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN "
 453                    + Account.AVATAR + " TEXT");
 454        }
 455        if (oldVersion < 8 && newVersion >= 8) {
 456            db.execSQL("ALTER TABLE " + Conversation.TABLENAME + " ADD COLUMN "
 457                    + Conversation.ATTRIBUTES + " TEXT");
 458        }
 459        if (oldVersion < 9 && newVersion >= 9) {
 460            db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN "
 461                    + Contact.LAST_TIME + " NUMBER");
 462            db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN "
 463                    + Contact.LAST_PRESENCE + " TEXT");
 464        }
 465        if (oldVersion < 10 && newVersion >= 10) {
 466            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 467                    + Message.RELATIVE_FILE_PATH + " TEXT");
 468        }
 469        if (oldVersion < 11 && newVersion >= 11) {
 470            db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN "
 471                    + Contact.GROUPS + " TEXT");
 472            db.execSQL("delete from " + Contact.TABLENAME);
 473            db.execSQL("update " + Account.TABLENAME + " set " + Account.ROSTERVERSION + " = NULL");
 474        }
 475        if (oldVersion < 12 && newVersion >= 12) {
 476            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 477                    + Message.SERVER_MSG_ID + " TEXT");
 478        }
 479        if (oldVersion < 13 && newVersion >= 13) {
 480            db.execSQL("delete from " + Contact.TABLENAME);
 481            db.execSQL("update " + Account.TABLENAME + " set " + Account.ROSTERVERSION + " = NULL");
 482        }
 483        if (oldVersion < 14 && newVersion >= 14) {
 484            canonicalizeJids(db);
 485        }
 486        if (oldVersion < 15 && newVersion >= 15) {
 487            recreateAxolotlDb(db);
 488            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 489                    + Message.FINGERPRINT + " TEXT");
 490        }
 491        if (oldVersion < 16 && newVersion >= 16) {
 492            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
 493                    + Message.CARBON + " INTEGER");
 494        }
 495        if (oldVersion < 19 && newVersion >= 19) {
 496            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.DISPLAY_NAME + " TEXT");
 497        }
 498        if (oldVersion < 20 && newVersion >= 20) {
 499            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.HOSTNAME + " TEXT");
 500            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.PORT + " NUMBER DEFAULT 5222");
 501        }
 502        if (oldVersion < 26 && newVersion >= 26) {
 503            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.STATUS + " TEXT");
 504            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.STATUS_MESSAGE + " TEXT");
 505        }
 506        if (oldVersion < 40 && newVersion >= 40) {
 507            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.RESOURCE + " TEXT");
 508        }
 509        /* Any migrations that alter the Account table need to happen BEFORE this migration, as it
 510         * depends on account de-serialization.
 511         */
 512        if (oldVersion < 17 && newVersion >= 17 && newVersion < 31) {
 513            List<Account> accounts = getAccounts(db);
 514            for (Account account : accounts) {
 515                String ownDeviceIdString = account.getKey(SQLiteAxolotlStore.JSONKEY_REGISTRATION_ID);
 516                if (ownDeviceIdString == null) {
 517                    continue;
 518                }
 519                int ownDeviceId = Integer.valueOf(ownDeviceIdString);
 520                SignalProtocolAddress ownAddress = new SignalProtocolAddress(account.getJid().asBareJid().toString(), ownDeviceId);
 521                deleteSession(db, account, ownAddress);
 522                IdentityKeyPair identityKeyPair = loadOwnIdentityKeyPair(db, account);
 523                if (identityKeyPair != null) {
 524                    String[] selectionArgs = {
 525                            account.getUuid(),
 526                            CryptoHelper.bytesToHex(identityKeyPair.getPublicKey().serialize())
 527                    };
 528                    ContentValues values = new ContentValues();
 529                    values.put(SQLiteAxolotlStore.TRUSTED, 2);
 530                    db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, values,
 531                            SQLiteAxolotlStore.ACCOUNT + " = ? AND "
 532                                    + SQLiteAxolotlStore.FINGERPRINT + " = ? ",
 533                            selectionArgs);
 534                } else {
 535                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": could not load own identity key pair");
 536                }
 537            }
 538        }
 539        if (oldVersion < 18 && newVersion >= 18) {
 540            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.READ + " NUMBER DEFAULT 1");
 541        }
 542
 543        if (oldVersion < 21 && newVersion >= 21) {
 544            List<Account> accounts = getAccounts(db);
 545            for (Account account : accounts) {
 546                account.unsetPgpSignature();
 547                db.update(Account.TABLENAME, account.getContentValues(), Account.UUID
 548                        + "=?", new String[]{account.getUuid()});
 549            }
 550        }
 551
 552        if (oldVersion >= 15 && oldVersion < 22 && newVersion >= 22) {
 553            db.execSQL("ALTER TABLE " + SQLiteAxolotlStore.IDENTITIES_TABLENAME + " ADD COLUMN " + SQLiteAxolotlStore.CERTIFICATE);
 554        }
 555
 556        if (oldVersion < 23 && newVersion >= 23) {
 557            db.execSQL(CREATE_DISCOVERY_RESULTS_STATEMENT);
 558        }
 559
 560        if (oldVersion < 24 && newVersion >= 24) {
 561            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.EDITED + " TEXT");
 562        }
 563
 564        if (oldVersion < 25 && newVersion >= 25) {
 565            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.OOB + " INTEGER");
 566        }
 567
 568        if (oldVersion < 26 && newVersion >= 26) {
 569            db.execSQL(CREATE_PRESENCE_TEMPLATES_STATEMENT);
 570        }
 571
 572        if (oldVersion < 27 && newVersion >= 27) {
 573            db.execSQL("DELETE FROM " + ServiceDiscoveryResult.TABLENAME);
 574        }
 575
 576        if (oldVersion < 28 && newVersion >= 28) {
 577            canonicalizeJids(db);
 578        }
 579
 580        if (oldVersion < 29 && newVersion >= 29) {
 581            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.ERROR_MESSAGE + " TEXT");
 582        }
 583        if (oldVersion >= 15 && oldVersion < 31 && newVersion >= 31) {
 584            db.execSQL("ALTER TABLE " + SQLiteAxolotlStore.IDENTITIES_TABLENAME + " ADD COLUMN " + SQLiteAxolotlStore.TRUST + " TEXT");
 585            db.execSQL("ALTER TABLE " + SQLiteAxolotlStore.IDENTITIES_TABLENAME + " ADD COLUMN " + SQLiteAxolotlStore.ACTIVE + " NUMBER");
 586            HashMap<Integer, ContentValues> migration = new HashMap<>();
 587            migration.put(0, createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, true));
 588            migration.put(1, createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, true));
 589            migration.put(2, createFingerprintStatusContentValues(FingerprintStatus.Trust.UNTRUSTED, true));
 590            migration.put(3, createFingerprintStatusContentValues(FingerprintStatus.Trust.COMPROMISED, false));
 591            migration.put(4, createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, false));
 592            migration.put(5, createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, false));
 593            migration.put(6, createFingerprintStatusContentValues(FingerprintStatus.Trust.UNTRUSTED, false));
 594            migration.put(7, createFingerprintStatusContentValues(FingerprintStatus.Trust.VERIFIED_X509, true));
 595            migration.put(8, createFingerprintStatusContentValues(FingerprintStatus.Trust.VERIFIED_X509, false));
 596            for (Map.Entry<Integer, ContentValues> entry : migration.entrySet()) {
 597                String whereClause = SQLiteAxolotlStore.TRUSTED + "=?";
 598                String[] where = {String.valueOf(entry.getKey())};
 599                db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, entry.getValue(), whereClause, where);
 600            }
 601
 602        }
 603        if (oldVersion >= 15 && oldVersion < 32 && newVersion >= 32) {
 604            db.execSQL("ALTER TABLE " + SQLiteAxolotlStore.IDENTITIES_TABLENAME + " ADD COLUMN " + SQLiteAxolotlStore.LAST_ACTIVATION + " NUMBER");
 605            ContentValues defaults = new ContentValues();
 606            defaults.put(SQLiteAxolotlStore.LAST_ACTIVATION, System.currentTimeMillis());
 607            db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, defaults, null, null);
 608        }
 609        if (oldVersion >= 15 && oldVersion < 33 && newVersion >= 33) {
 610            String whereClause = SQLiteAxolotlStore.OWN + "=1";
 611            db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, createFingerprintStatusContentValues(FingerprintStatus.Trust.VERIFIED, true), whereClause, null);
 612        }
 613
 614        if (oldVersion < 34 && newVersion >= 34) {
 615            db.execSQL(CREATE_MESSAGE_TIME_INDEX);
 616
 617            final File oldPicturesDirectory = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/Conversations/");
 618            final File oldFilesDirectory = new File(Environment.getExternalStorageDirectory() + "/Conversations/");
 619            final File newFilesDirectory = new File(Environment.getExternalStorageDirectory() + "/Conversations/Media/Conversations Files/");
 620            final File newVideosDirectory = new File(Environment.getExternalStorageDirectory() + "/Conversations/Media/Conversations Videos/");
 621            if (oldPicturesDirectory.exists() && oldPicturesDirectory.isDirectory()) {
 622                final File newPicturesDirectory = new File(Environment.getExternalStorageDirectory() + "/Conversations/Media/Conversations Images/");
 623                newPicturesDirectory.getParentFile().mkdirs();
 624                if (oldPicturesDirectory.renameTo(newPicturesDirectory)) {
 625                    Log.d(Config.LOGTAG, "moved " + oldPicturesDirectory.getAbsolutePath() + " to " + newPicturesDirectory.getAbsolutePath());
 626                }
 627            }
 628            if (oldFilesDirectory.exists() && oldFilesDirectory.isDirectory()) {
 629                newFilesDirectory.mkdirs();
 630                newVideosDirectory.mkdirs();
 631                final File[] files = oldFilesDirectory.listFiles();
 632                if (files == null) {
 633                    return;
 634                }
 635                for (File file : files) {
 636                    if (file.getName().equals(".nomedia")) {
 637                        if (file.delete()) {
 638                            Log.d(Config.LOGTAG, "deleted nomedia file in " + oldFilesDirectory.getAbsolutePath());
 639                        }
 640                    } else if (file.isFile()) {
 641                        final String name = file.getName();
 642                        boolean isVideo = false;
 643                        int start = name.lastIndexOf('.') + 1;
 644                        if (start < name.length()) {
 645                            String mime = MimeUtils.guessMimeTypeFromExtension(name.substring(start));
 646                            isVideo = mime != null && mime.startsWith("video/");
 647                        }
 648                        File dst = new File((isVideo ? newVideosDirectory : newFilesDirectory).getAbsolutePath() + "/" + file.getName());
 649                        if (file.renameTo(dst)) {
 650                            Log.d(Config.LOGTAG, "moved " + file + " to " + dst);
 651                        }
 652                    }
 653                }
 654            }
 655        }
 656        if (oldVersion < 35 && newVersion >= 35) {
 657            db.execSQL(CREATE_MESSAGE_CONVERSATION_INDEX);
 658        }
 659        if (oldVersion < 36 && newVersion >= 36) {
 660            List<Account> accounts = getAccounts(db);
 661            for (Account account : accounts) {
 662                account.setOption(Account.OPTION_REQUIRES_ACCESS_MODE_CHANGE, true);
 663                account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, false);
 664                db.update(Account.TABLENAME, account.getContentValues(), Account.UUID
 665                        + "=?", new String[]{account.getUuid()});
 666            }
 667        }
 668
 669        if (oldVersion < 37 && newVersion >= 37) {
 670            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.READ_BY_MARKERS + " TEXT");
 671        }
 672
 673        if (oldVersion < 38 && newVersion >= 38) {
 674            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.MARKABLE + " NUMBER DEFAULT 0");
 675        }
 676
 677        if (oldVersion < 39 && newVersion >= 39) {
 678            db.execSQL(CREATE_RESOLVER_RESULTS_TABLE);
 679        }
 680
 681        if (QuickConversationsService.isQuicksy() && oldVersion < 43 && newVersion >= 43) {
 682            List<Account> accounts = getAccounts(db);
 683            for (Account account : accounts) {
 684                account.setOption(Account.OPTION_MAGIC_CREATE, true);
 685                db.update(Account.TABLENAME, account.getContentValues(), Account.UUID
 686                        + "=?", new String[]{account.getUuid()});
 687            }
 688        }
 689
 690        if (oldVersion < 44 && newVersion >= 44) {
 691            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.DELETED + " NUMBER DEFAULT 0");
 692            db.execSQL(CREATE_MESSAGE_DELETED_INDEX);
 693            db.execSQL(CREATE_MESSAGE_RELATIVE_FILE_PATH_INDEX);
 694            db.execSQL(CREATE_MESSAGE_TYPE_INDEX);
 695        }
 696
 697        if (oldVersion < 45 && newVersion >= 45) {
 698            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.BODY_LANGUAGE);
 699        }
 700
 701        if (oldVersion < 46 && newVersion >= 46) {
 702            final long start = SystemClock.elapsedRealtime();
 703            db.rawQuery("PRAGMA secure_delete = FALSE", null).close();
 704            db.execSQL("update " + Message.TABLENAME + " set " + Message.EDITED + "=NULL");
 705            db.rawQuery("PRAGMA secure_delete=ON", null).close();
 706            final long diff = SystemClock.elapsedRealtime() - start;
 707            Log.d(Config.LOGTAG, "deleted old edit information in " + diff + "ms");
 708        }
 709        if (oldVersion < 47 && newVersion >= 47) {
 710            db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN " + Contact.PRESENCE_NAME + " TEXT");
 711        }
 712        if (oldVersion < 48 && newVersion >= 48) {
 713            db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN " + Contact.RTP_CAPABILITY + " TEXT");
 714        }
 715        if (oldVersion < 49 && newVersion >= 49) {
 716            db.beginTransaction();
 717            db.execSQL("DROP TRIGGER IF EXISTS after_message_insert;");
 718            db.execSQL("DROP TRIGGER IF EXISTS after_message_update;");
 719            db.execSQL("DROP TRIGGER IF EXISTS after_message_delete;");
 720            db.execSQL("DROP TABLE IF EXISTS messages_index;");
 721            // a hack that should not be necessary, but
 722            // there was at least one occurence when SQLite failed at this
 723            db.execSQL("DROP TABLE IF EXISTS messages_index_docsize;");
 724            db.execSQL("DROP TABLE IF EXISTS messages_index_segdir;");
 725            db.execSQL("DROP TABLE IF EXISTS messages_index_segments;");
 726            db.execSQL("DROP TABLE IF EXISTS messages_index_stat;");
 727            db.execSQL(CREATE_MESSAGE_INDEX_TABLE);
 728            db.execSQL(CREATE_MESSAGE_INSERT_TRIGGER);
 729            db.execSQL(CREATE_MESSAGE_UPDATE_TRIGGER);
 730            db.execSQL(CREATE_MESSAGE_DELETE_TRIGGER);
 731            db.setTransactionSuccessful();
 732            db.endTransaction();
 733            requiresMessageIndexRebuild = true;
 734        }
 735        if (oldVersion < 50 && newVersion >= 50) {
 736            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.PINNED_MECHANISM + " TEXT");
 737            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.PINNED_CHANNEL_BINDING + " TEXT");
 738        }
 739        if (oldVersion < 51 && newVersion >= 51) {
 740            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.FAST_MECHANISM + " TEXT");
 741            db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.FAST_TOKEN + " TEXT");
 742        }
 743    }
 744
 745    private void canonicalizeJids(SQLiteDatabase db) {
 746        // migrate db to new, canonicalized JID domainpart representation
 747
 748        // Conversation table
 749        Cursor cursor = db.rawQuery("select * from " + Conversation.TABLENAME, new String[0]);
 750        while (cursor.moveToNext()) {
 751            String newJid;
 752            try {
 753                newJid = Jid.of(cursor.getString(cursor.getColumnIndex(Conversation.CONTACTJID))).toString();
 754            } catch (IllegalArgumentException ignored) {
 755                Log.e(Config.LOGTAG, "Failed to migrate Conversation CONTACTJID "
 756                        + cursor.getString(cursor.getColumnIndex(Conversation.CONTACTJID))
 757                        + ": " + ignored + ". Skipping...");
 758                continue;
 759            }
 760
 761            final String[] updateArgs = {
 762                    newJid,
 763                    cursor.getString(cursor.getColumnIndex(Conversation.UUID)),
 764            };
 765            db.execSQL("update " + Conversation.TABLENAME
 766                    + " set " + Conversation.CONTACTJID + " = ? "
 767                    + " where " + Conversation.UUID + " = ?", updateArgs);
 768        }
 769        cursor.close();
 770
 771        // Contact table
 772        cursor = db.rawQuery("select * from " + Contact.TABLENAME, new String[0]);
 773        while (cursor.moveToNext()) {
 774            String newJid;
 775            try {
 776                newJid = Jid.of(cursor.getString(cursor.getColumnIndex(Contact.JID))).toString();
 777            } catch (final IllegalArgumentException e) {
 778                Log.e(Config.LOGTAG, "Failed to migrate Contact JID "
 779                        + cursor.getString(cursor.getColumnIndex(Contact.JID))
 780                        + ":  Skipping...", e);
 781                continue;
 782            }
 783
 784            final String[] updateArgs = {
 785                    newJid,
 786                    cursor.getString(cursor.getColumnIndex(Contact.ACCOUNT)),
 787                    cursor.getString(cursor.getColumnIndex(Contact.JID)),
 788            };
 789            db.execSQL("update " + Contact.TABLENAME
 790                    + " set " + Contact.JID + " = ? "
 791                    + " where " + Contact.ACCOUNT + " = ? "
 792                    + " AND " + Contact.JID + " = ?", updateArgs);
 793        }
 794        cursor.close();
 795
 796        // Account table
 797        cursor = db.rawQuery("select * from " + Account.TABLENAME, new String[0]);
 798        while (cursor.moveToNext()) {
 799            String newServer;
 800            try {
 801                newServer = Jid.of(
 802                        cursor.getString(cursor.getColumnIndex(Account.USERNAME)),
 803                        cursor.getString(cursor.getColumnIndex(Account.SERVER)),
 804                        null
 805                ).getDomain().toEscapedString();
 806            } catch (IllegalArgumentException ignored) {
 807                Log.e(Config.LOGTAG, "Failed to migrate Account SERVER "
 808                        + cursor.getString(cursor.getColumnIndex(Account.SERVER))
 809                        + ": " + ignored + ". Skipping...");
 810                continue;
 811            }
 812
 813            String[] updateArgs = {
 814                    newServer,
 815                    cursor.getString(cursor.getColumnIndex(Account.UUID)),
 816            };
 817            db.execSQL("update " + Account.TABLENAME
 818                    + " set " + Account.SERVER + " = ? "
 819                    + " where " + Account.UUID + " = ?", updateArgs);
 820        }
 821        cursor.close();
 822    }
 823
 824    public DownloadableFile getFileForCid(Cid cid) {
 825        if (cid == null) return null;
 826
 827        SQLiteDatabase db = this.getReadableDatabase();
 828        Cursor cursor = db.query("cheogram.cids", new String[]{"path"}, "cid=?", new String[]{cid.toString()}, null, null, null);
 829        DownloadableFile f = null;
 830        if (cursor.moveToNext()) {
 831            f = new DownloadableFile(cursor.getString(0));
 832        }
 833        cursor.close();
 834        return f;
 835    }
 836
 837    public String getUrlForCid(Cid cid) {
 838        SQLiteDatabase db = this.getReadableDatabase();
 839        Cursor cursor = db.query("cheogram.cids", new String[]{"url"}, "cid=?", new String[]{cid.toString()}, null, null, null);
 840        String url = null;
 841        if (cursor.moveToNext()) {
 842            url = cursor.getString(0);
 843        }
 844        cursor.close();
 845        return url;
 846    }
 847
 848    public void saveCid(Cid cid, File file) {
 849        saveCid(cid, file, null);
 850    }
 851
 852    public void saveCid(Cid cid, File file, String url) {
 853        SQLiteDatabase db = this.getWritableDatabase();
 854        ContentValues cv = new ContentValues();
 855        cv.put("cid", cid.toString());
 856        if (file != null) cv.put("path", file.getAbsolutePath());
 857        if (url != null) cv.put("url", url);
 858        if (db.update("cheogram.cids", cv, "cid=?", new String[]{cid.toString()}) < 1) {
 859            db.insertWithOnConflict("cheogram.cids", null, cv, SQLiteDatabase.CONFLICT_REPLACE);
 860        }
 861    }
 862
 863    public void blockMedia(Cid cid) {
 864        SQLiteDatabase db = this.getWritableDatabase();
 865        ContentValues cv = new ContentValues();
 866        cv.put("cid", cid.toString());
 867        db.insertWithOnConflict("cheogram.blocked_media", null, cv, SQLiteDatabase.CONFLICT_REPLACE);
 868    }
 869
 870    public boolean isBlockedMedia(Cid cid) {
 871        SQLiteDatabase db = this.getReadableDatabase();
 872        Cursor cursor = db.query("cheogram.blocked_media", new String[]{"count(*)"}, "cid=?", new String[]{cid.toString()}, null, null, null);
 873        boolean is = false;
 874        if (cursor.moveToNext()) {
 875            is = cursor.getInt(0) > 0;
 876        }
 877        cursor.close();
 878        return is;
 879    }
 880
 881    public void clearBlockedMedia() {
 882        SQLiteDatabase db = this.getWritableDatabase();
 883        db.execSQL("DELETE FROM cheogram.blocked_media");
 884    }
 885
 886    public Multimap<String, String> loadMutedMucUsers() {
 887        Multimap<String, String> result = HashMultimap.create();
 888        SQLiteDatabase db = this.getReadableDatabase();
 889        Cursor cursor = db.query("cheogram.muted_participants", new String[]{"muc_jid", "occupant_id"}, null, null, null, null, null);
 890        while (cursor.moveToNext()) {
 891            result.put(cursor.getString(0), cursor.getString(1));
 892        }
 893        cursor.close();
 894        return result;
 895    }
 896
 897    public boolean muteMucUser(MucOptions.User user) {
 898        if (user.getMuc() == null || user.getOccupantId() == null) return false;
 899
 900        SQLiteDatabase db = this.getWritableDatabase();
 901        ContentValues cv = new ContentValues();
 902        cv.put("muc_jid", user.getMuc().toString());
 903        cv.put("occupant_id", user.getOccupantId());
 904        cv.put("nick", user.getNick());
 905        db.insertWithOnConflict("cheogram.muted_participants", null, cv, SQLiteDatabase.CONFLICT_REPLACE);
 906
 907        return true;
 908    }
 909
 910    public boolean unmuteMucUser(MucOptions.User user) {
 911        if (user.getMuc() == null || user.getOccupantId() == null) return false;
 912
 913        SQLiteDatabase db = this.getWritableDatabase();
 914        String where = "muc_jid=? AND occupant_id=?";
 915        String[] whereArgs = {user.getMuc().toString(), user.getOccupantId()};
 916        db.delete("cheogram.muted_participants", where, whereArgs);
 917
 918        return true;
 919    }
 920
 921    public void insertWebxdcUpdate(final WebxdcUpdate update) {
 922        SQLiteDatabase db = this.getWritableDatabase();
 923        db.insertWithOnConflict("cheogram.webxdc_updates", null, update.getContentValues(), SQLiteDatabase.CONFLICT_IGNORE);
 924    }
 925
 926    public WebxdcUpdate findLastWebxdcUpdate(Message message) {
 927        if (message.getThread() == null) {
 928            Log.w(Config.LOGTAG, "WebXDC message with no thread!");
 929            return null;
 930        }
 931
 932        SQLiteDatabase db = this.getReadableDatabase();
 933        String[] selectionArgs = {message.getConversation().getUuid(), message.getThread().getContent()};
 934        Cursor cursor = db.query("cheogram.webxdc_updates", null,
 935                Message.CONVERSATION + "=? AND thread=?",
 936                selectionArgs, null, null, "serial ASC");
 937        WebxdcUpdate update = null;
 938        if (cursor.moveToLast()) {
 939            update = new WebxdcUpdate(cursor, cursor.getLong(cursor.getColumnIndex("serial")));
 940        }
 941        cursor.close();
 942        return update;
 943    }
 944
 945    public List<WebxdcUpdate> findWebxdcUpdates(Message message, long serial) {
 946        SQLiteDatabase db = this.getReadableDatabase();
 947        String[] selectionArgs = {message.getConversation().getUuid(), message.getThread().getContent(), String.valueOf(serial)};
 948        Cursor cursor = db.query("cheogram.webxdc_updates", null,
 949                Message.CONVERSATION + "=? AND thread=? AND serial>?",
 950                selectionArgs, null, null, "serial ASC");
 951        long maxSerial = 0;
 952        if (cursor.moveToLast()) {
 953            maxSerial = cursor.getLong(cursor.getColumnIndex("serial"));
 954        }
 955        cursor.moveToFirst();
 956        cursor.moveToPrevious();
 957
 958        List<WebxdcUpdate> updates = new ArrayList<>();
 959        while (cursor.moveToNext()) {
 960            updates.add(new WebxdcUpdate(cursor, maxSerial));
 961        }
 962        cursor.close();
 963        return updates;
 964    }
 965
 966    public void createConversation(Conversation conversation) {
 967        SQLiteDatabase db = this.getWritableDatabase();
 968        db.insert(Conversation.TABLENAME, null, conversation.getContentValues());
 969    }
 970
 971    public void createMessage(Message message) {
 972        SQLiteDatabase db = this.getWritableDatabase();
 973        db.insert(Message.TABLENAME, null, message.getContentValues());
 974        db.insert("cheogram." + Message.TABLENAME, null, message.getCheogramContentValues());
 975    }
 976
 977    public void createAccount(Account account) {
 978        SQLiteDatabase db = this.getWritableDatabase();
 979        db.insert(Account.TABLENAME, null, account.getContentValues());
 980    }
 981
 982    public void insertDiscoveryResult(ServiceDiscoveryResult result) {
 983        SQLiteDatabase db = this.getWritableDatabase();
 984        db.insert(ServiceDiscoveryResult.TABLENAME, null, result.getContentValues());
 985    }
 986
 987    public ServiceDiscoveryResult findDiscoveryResult(final String hash, final String ver) {
 988        SQLiteDatabase db = this.getReadableDatabase();
 989        String[] selectionArgs = {hash, ver};
 990        Cursor cursor = db.query(ServiceDiscoveryResult.TABLENAME, null,
 991                ServiceDiscoveryResult.HASH + "=? AND " + ServiceDiscoveryResult.VER + "=?",
 992                selectionArgs, null, null, null);
 993        if (cursor.getCount() == 0) {
 994            cursor.close();
 995            return null;
 996        }
 997        cursor.moveToFirst();
 998
 999        ServiceDiscoveryResult result = null;
1000        try {
1001            result = new ServiceDiscoveryResult(cursor);
1002        } catch (JSONException e) { /* result is still null */ }
1003
1004        cursor.close();
1005        return result;
1006    }
1007
1008    public void saveResolverResult(String domain, Resolver.Result result) {
1009        SQLiteDatabase db = this.getWritableDatabase();
1010        ContentValues contentValues = result.toContentValues();
1011        contentValues.put(Resolver.Result.DOMAIN, domain);
1012        db.insert(RESOLVER_RESULTS_TABLENAME, null, contentValues);
1013    }
1014
1015    public synchronized Resolver.Result findResolverResult(String domain) {
1016        SQLiteDatabase db = this.getReadableDatabase();
1017        String where = Resolver.Result.DOMAIN + "=?";
1018        String[] whereArgs = {domain};
1019        final Cursor cursor = db.query(RESOLVER_RESULTS_TABLENAME, null, where, whereArgs, null, null, null);
1020        Resolver.Result result = null;
1021        if (cursor != null) {
1022            try {
1023                if (cursor.moveToFirst()) {
1024                    result = Resolver.Result.fromCursor(cursor);
1025                }
1026            } catch (Exception e) {
1027                Log.d(Config.LOGTAG, "unable to find cached resolver result in database " + e.getMessage());
1028                return null;
1029            } finally {
1030                cursor.close();
1031            }
1032        }
1033        return result;
1034    }
1035
1036    public void insertPresenceTemplate(PresenceTemplate template) {
1037        SQLiteDatabase db = this.getWritableDatabase();
1038        String whereToDelete = PresenceTemplate.MESSAGE + "=?";
1039        String[] whereToDeleteArgs = {template.getStatusMessage()};
1040        db.delete(PresenceTemplate.TABELNAME, whereToDelete, whereToDeleteArgs);
1041        db.delete(PresenceTemplate.TABELNAME, PresenceTemplate.UUID + " not in (select " + PresenceTemplate.UUID + " from " + PresenceTemplate.TABELNAME + " order by " + PresenceTemplate.LAST_USED + " desc limit 9)", null);
1042        db.insert(PresenceTemplate.TABELNAME, null, template.getContentValues());
1043    }
1044
1045    public List<PresenceTemplate> getPresenceTemplates() {
1046        ArrayList<PresenceTemplate> templates = new ArrayList<>();
1047        SQLiteDatabase db = this.getReadableDatabase();
1048        Cursor cursor = db.query(PresenceTemplate.TABELNAME, null, null, null, null, null, PresenceTemplate.LAST_USED + " desc");
1049        while (cursor.moveToNext()) {
1050            templates.add(PresenceTemplate.fromCursor(cursor));
1051        }
1052        cursor.close();
1053        return templates;
1054    }
1055
1056    public CopyOnWriteArrayList<Conversation> getConversations(int status) {
1057        CopyOnWriteArrayList<Conversation> list = new CopyOnWriteArrayList<>();
1058        SQLiteDatabase db = this.getReadableDatabase();
1059        String[] selectionArgs = {Integer.toString(status)};
1060        Cursor cursor = db.rawQuery("select * from " + Conversation.TABLENAME
1061                + " where " + Conversation.STATUS + " = ? and " + Conversation.CONTACTJID + " is not null order by "
1062                + Conversation.CREATED + " desc", selectionArgs);
1063        while (cursor.moveToNext()) {
1064            final Conversation conversation = Conversation.fromCursor(cursor);
1065            if (conversation.getJid() instanceof InvalidJid) {
1066                continue;
1067            }
1068            list.add(conversation);
1069        }
1070        cursor.close();
1071        return list;
1072    }
1073
1074    public Message getMessage(Conversation conversation, String uuid) {
1075        ArrayList<Message> list = new ArrayList<>();
1076        SQLiteDatabase db = this.getReadableDatabase();
1077        Cursor cursor;
1078        cursor = db.rawQuery(
1079            "SELECT * FROM " + Message.TABLENAME + " " +
1080            "LEFT JOIN cheogram." + Message.TABLENAME +
1081            "  USING (" + Message.UUID + ")" +
1082            "WHERE " + Message.UUID + "=?",
1083            new String[]{uuid}
1084        );
1085        while (cursor.moveToNext()) {
1086            try {
1087                return Message.fromCursor(cursor, conversation);
1088            } catch (Exception e) {
1089                Log.e(Config.LOGTAG, "unable to restore message");
1090            }
1091        }
1092        cursor.close();
1093        return null;
1094    }
1095
1096    public ArrayList<Message> getMessages(Conversation conversations, int limit) {
1097        return getMessages(conversations, limit, -1);
1098    }
1099
1100    public Message getMessageFuzzyId(Conversation conversation, String id) {
1101        ArrayList<Message> list = new ArrayList<>();
1102        SQLiteDatabase db = this.getReadableDatabase();
1103        Cursor cursor;
1104        cursor = db.rawQuery(
1105            "SELECT * FROM " + Message.TABLENAME + " " +
1106            "LEFT JOIN cheogram." + Message.TABLENAME +
1107            "  USING (" + Message.UUID + ")" +
1108            "WHERE " + Message.UUID + "=? OR " + Message.SERVER_MSG_ID + " =? OR " + Message.REMOTE_MSG_ID + " =?",
1109            new String[]{id,id,id}
1110        );
1111        while (cursor.moveToNext()) {
1112            try {
1113                return Message.fromCursor(cursor, conversation);
1114            } catch (Exception e) {
1115                Log.e(Config.LOGTAG, "unable to restore message");
1116            }
1117        }
1118        cursor.close();
1119        return null;
1120    }
1121
1122    public ArrayList<Message> getMessages(Conversation conversation, int limit, long timestamp) {
1123        ArrayList<Message> list = new ArrayList<>();
1124        SQLiteDatabase db = this.getReadableDatabase();
1125        Cursor cursor;
1126        if (timestamp == -1) {
1127            String[] selectionArgs = {conversation.getUuid()};
1128            cursor = db.rawQuery(
1129                "SELECT * FROM " + Message.TABLENAME + " " +
1130                "LEFT JOIN cheogram." + Message.TABLENAME +
1131                "  USING (" + Message.UUID + ")" +
1132                " WHERE " + Message.UUID + " IN (" +
1133                "SELECT " + Message.UUID + " FROM " + Message.TABLENAME +
1134                " WHERE " + Message.CONVERSATION + "=? " +
1135                "ORDER BY " + Message.TIME_SENT + " DESC " +
1136                "LIMIT " + String.valueOf(limit) + ") " +
1137                "ORDER BY " + Message.TIME_SENT + " DESC ",
1138                selectionArgs
1139            );
1140        } else {
1141            String[] selectionArgs = {conversation.getUuid(),
1142                    Long.toString(timestamp)};
1143            cursor = db.rawQuery(
1144                "SELECT * FROM " + Message.TABLENAME + " " +
1145                "LEFT JOIN cheogram." + Message.TABLENAME +
1146                "  USING (" + Message.UUID + ")" +
1147                " WHERE " + Message.UUID + " IN (" +
1148                "SELECT " + Message.UUID + " FROM " + Message.TABLENAME +
1149                " WHERE " + Message.CONVERSATION + "=? AND " +
1150                Message.TIME_SENT + "<? " +
1151                "ORDER BY " + Message.TIME_SENT + " DESC " +
1152                "LIMIT " + String.valueOf(limit) + ") " +
1153                "ORDER BY " + Message.TIME_SENT + " DESC ",
1154                selectionArgs
1155            );
1156        }
1157        CursorUtils.upgradeCursorWindowSize(cursor);
1158        while (cursor.moveToNext()) {
1159            try {
1160                list.add(0, Message.fromCursor(cursor, conversation));
1161            } catch (Exception e) {
1162                Log.e(Config.LOGTAG, "unable to restore message", e);
1163            }
1164        }
1165        cursor.close();
1166        return list;
1167    }
1168
1169    public Cursor getMessageSearchCursor(final List<String> term, final String uuid) {
1170        final SQLiteDatabase db = this.getReadableDatabase();
1171        final StringBuilder SQL = new StringBuilder();
1172        final String[] selectionArgs;
1173        SQL.append("SELECT " + Message.TABLENAME + ".*," + Conversation.TABLENAME + "." + Conversation.CONTACTJID + "," + Conversation.TABLENAME + "." + Conversation.ACCOUNT + "," + Conversation.TABLENAME + "." + Conversation.MODE + " FROM " + Message.TABLENAME + " JOIN " + Conversation.TABLENAME + " ON " + Message.TABLENAME + "." + Message.CONVERSATION + "=" + Conversation.TABLENAME + "." + Conversation.UUID + " JOIN messages_index ON messages_index.rowid=messages.rowid WHERE " + Message.ENCRYPTION + " NOT IN(" + Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE + "," + Message.ENCRYPTION_PGP + "," + Message.ENCRYPTION_DECRYPTION_FAILED + "," + Message.ENCRYPTION_AXOLOTL_FAILED + ") AND " + Message.TYPE + " IN(" + Message.TYPE_TEXT + "," + Message.TYPE_PRIVATE + ") AND messages_index.body MATCH ?");
1174        if (uuid == null) {
1175            selectionArgs = new String[]{FtsUtils.toMatchString(term)};
1176        } else {
1177            selectionArgs = new String[]{FtsUtils.toMatchString(term), uuid};
1178            SQL.append(" AND " + Conversation.TABLENAME + '.' + Conversation.UUID + "=?");
1179        }
1180        SQL.append(" ORDER BY " + Message.TIME_SENT + " DESC limit " + Config.MAX_SEARCH_RESULTS);
1181        Log.d(Config.LOGTAG, "search term: " + FtsUtils.toMatchString(term));
1182        return db.rawQuery(SQL.toString(), selectionArgs);
1183    }
1184
1185    public List<String> markFileAsDeleted(final File file, final boolean internal) {
1186        SQLiteDatabase db = this.getReadableDatabase();
1187        String selection;
1188        String[] selectionArgs;
1189        if (internal) {
1190            final String name = file.getName();
1191            if (name.endsWith(".pgp")) {
1192                selection = "(" + Message.RELATIVE_FILE_PATH + " IN(?,?) OR (" + Message.RELATIVE_FILE_PATH + "=? and encryption in(1,4))) and type in (1,2,5)";
1193                selectionArgs = new String[]{file.getAbsolutePath(), name, name.substring(0, name.length() - 4)};
1194            } else {
1195                selection = Message.RELATIVE_FILE_PATH + " IN(?,?) and type in (1,2,5)";
1196                selectionArgs = new String[]{file.getAbsolutePath(), name};
1197            }
1198        } else {
1199            selection = Message.RELATIVE_FILE_PATH + "=? and type in (1,2,5)";
1200            selectionArgs = new String[]{file.getAbsolutePath()};
1201        }
1202        final List<String> uuids = new ArrayList<>();
1203        Cursor cursor = db.query(Message.TABLENAME, new String[]{Message.UUID}, selection, selectionArgs, null, null, null);
1204        while (cursor != null && cursor.moveToNext()) {
1205            uuids.add(cursor.getString(0));
1206        }
1207        if (cursor != null) {
1208            cursor.close();
1209        }
1210        markFileAsDeleted(uuids);
1211        return uuids;
1212    }
1213
1214    public void markFileAsDeleted(List<String> uuids) {
1215        SQLiteDatabase db = this.getReadableDatabase();
1216        final ContentValues contentValues = new ContentValues();
1217        final String where = Message.UUID + "=?";
1218        contentValues.put(Message.DELETED, 1);
1219        db.beginTransaction();
1220        for (String uuid : uuids) {
1221            db.update(Message.TABLENAME, contentValues, where, new String[]{uuid});
1222        }
1223        db.setTransactionSuccessful();
1224        db.endTransaction();
1225    }
1226
1227    public void markFilesAsChanged(List<FilePathInfo> files) {
1228        SQLiteDatabase db = this.getReadableDatabase();
1229        final String where = Message.UUID + "=?";
1230        db.beginTransaction();
1231        for (FilePathInfo info : files) {
1232            final ContentValues contentValues = new ContentValues();
1233            contentValues.put(Message.DELETED, info.deleted ? 1 : 0);
1234            db.update(Message.TABLENAME, contentValues, where, new String[]{info.uuid.toString()});
1235        }
1236        db.setTransactionSuccessful();
1237        db.endTransaction();
1238    }
1239
1240    public List<FilePathInfo> getFilePathInfo() {
1241        final SQLiteDatabase db = this.getReadableDatabase();
1242        final Cursor cursor = db.query(Message.TABLENAME, new String[]{Message.UUID, Message.RELATIVE_FILE_PATH, Message.DELETED}, "type in (1,2,5) and " + Message.RELATIVE_FILE_PATH + " is not null", null, null, null, null);
1243        final List<FilePathInfo> list = new ArrayList<>();
1244        while (cursor != null && cursor.moveToNext()) {
1245            list.add(new FilePathInfo(cursor.getString(0), cursor.getString(1), cursor.getInt(2) > 0));
1246        }
1247        if (cursor != null) {
1248            cursor.close();
1249        }
1250        return list;
1251    }
1252
1253    public List<FilePath> getRelativeFilePaths(String account, Jid jid, int limit) {
1254        SQLiteDatabase db = this.getReadableDatabase();
1255        final String SQL = "select uuid,relativeFilePath from messages where type in (1,2,5) and deleted=0 and " + Message.RELATIVE_FILE_PATH + " is not null and conversationUuid=(select uuid from conversations where accountUuid=? and (contactJid=? or contactJid like ?)) order by timeSent desc";
1256        final String[] args = {account, jid.toString(), jid.toString() + "/%"};
1257        Cursor cursor = db.rawQuery(SQL + (limit > 0 ? " limit " + limit : ""), args);
1258        List<FilePath> filesPaths = new ArrayList<>();
1259        while (cursor.moveToNext()) {
1260            filesPaths.add(new FilePath(cursor.getString(0), cursor.getString(1)));
1261        }
1262        cursor.close();
1263        return filesPaths;
1264    }
1265
1266    public static class FilePath {
1267        public final UUID uuid;
1268        public final String path;
1269
1270        private FilePath(String uuid, String path) {
1271            this.uuid = UUID.fromString(uuid);
1272            this.path = path;
1273        }
1274    }
1275
1276    public static class FilePathInfo extends FilePath {
1277        public boolean deleted;
1278
1279        private FilePathInfo(String uuid, String path, boolean deleted) {
1280            super(uuid, path);
1281            this.deleted = deleted;
1282        }
1283
1284        public boolean setDeleted(boolean deleted) {
1285            final boolean changed = deleted != this.deleted;
1286            this.deleted = deleted;
1287            return changed;
1288        }
1289    }
1290
1291    public Conversation findConversation(final Account account, final Jid contactJid) {
1292        SQLiteDatabase db = this.getReadableDatabase();
1293        String[] selectionArgs = {account.getUuid(),
1294                contactJid.asBareJid().toString() + "/%",
1295                contactJid.asBareJid().toString()
1296        };
1297        try(final Cursor cursor = db.query(Conversation.TABLENAME, null,
1298                Conversation.ACCOUNT + "=? AND (" + Conversation.CONTACTJID
1299                        + " like ? OR " + Conversation.CONTACTJID + "=?)", selectionArgs, null, null, null)) {
1300            if (cursor.getCount() == 0) {
1301                return null;
1302            }
1303            cursor.moveToFirst();
1304            final Conversation conversation = Conversation.fromCursor(cursor);
1305            if (conversation.getJid() instanceof InvalidJid) {
1306                return null;
1307            }
1308            return conversation;
1309        }
1310    }
1311
1312    public void updateConversation(final Conversation conversation) {
1313        final SQLiteDatabase db = this.getWritableDatabase();
1314        final String[] args = {conversation.getUuid()};
1315        db.update(Conversation.TABLENAME, conversation.getContentValues(),
1316                Conversation.UUID + "=?", args);
1317    }
1318
1319    public List<Account> getAccounts() {
1320        SQLiteDatabase db = this.getReadableDatabase();
1321        return getAccounts(db);
1322    }
1323
1324    public List<Jid> getAccountJids(final boolean enabledOnly) {
1325        final SQLiteDatabase db = this.getReadableDatabase();
1326        final List<Jid> jids = new ArrayList<>();
1327        final String[] columns = new String[]{Account.USERNAME, Account.SERVER};
1328        final String where = enabledOnly ? "not options & (1 <<1)" : null;
1329        try (final Cursor cursor = db.query(Account.TABLENAME, columns, where, null, null, null, null)) {
1330            while (cursor != null && cursor.moveToNext()) {
1331                jids.add(Jid.of(cursor.getString(0), cursor.getString(1), null));
1332            }
1333        } catch (final Exception e) {
1334            return jids;
1335        }
1336        return jids;
1337    }
1338
1339    private List<Account> getAccounts(SQLiteDatabase db) {
1340        final List<Account> list = new ArrayList<>();
1341        try (final Cursor cursor =
1342                db.query(Account.TABLENAME, null, null, null, null, null, null)) {
1343            while (cursor != null && cursor.moveToNext()) {
1344                list.add(Account.fromCursor(cursor));
1345            }
1346        }
1347        return list;
1348    }
1349
1350    public boolean updateAccount(Account account) {
1351        SQLiteDatabase db = this.getWritableDatabase();
1352        String[] args = {account.getUuid()};
1353        final int rows = db.update(Account.TABLENAME, account.getContentValues(), Account.UUID + "=?", args);
1354        return rows == 1;
1355    }
1356
1357    public boolean deleteAccount(Account account) {
1358        SQLiteDatabase db = this.getWritableDatabase();
1359        String[] args = {account.getUuid()};
1360        final int rows = db.delete(Account.TABLENAME, Account.UUID + "=?", args);
1361        return rows == 1;
1362    }
1363
1364    public boolean updateMessage(Message message, boolean includeBody) {
1365        SQLiteDatabase db = this.getWritableDatabase();
1366        String[] args = {message.getUuid()};
1367        ContentValues contentValues = message.getContentValues();
1368        contentValues.remove(Message.UUID);
1369        if (!includeBody) {
1370            contentValues.remove(Message.BODY);
1371        }
1372        return db.update(Message.TABLENAME, message.getContentValues(), Message.UUID + "=?", args) == 1 &&
1373               db.update("cheogram." + Message.TABLENAME, message.getCheogramContentValues(), Message.UUID + "=?", args) == 1;
1374    }
1375
1376    public boolean updateMessage(Message message, String uuid) {
1377        SQLiteDatabase db = this.getWritableDatabase();
1378        String[] args = {uuid};
1379        return db.update(Message.TABLENAME, message.getContentValues(), Message.UUID + "=?", args) == 1 &&
1380               db.update("cheogram." + Message.TABLENAME, message.getCheogramContentValues(), Message.UUID + "=?", args) == 1;
1381    }
1382
1383
1384    public boolean deleteMessage(String uuid) {
1385        SQLiteDatabase db = this.getWritableDatabase();
1386        String[] args = {uuid};
1387        return db.delete(Message.TABLENAME, Message.UUID + "=?", args) == 1 &&
1388               db.delete("cheogram." + Message.TABLENAME, Message.UUID + "=?", args) == 1;
1389    }
1390
1391    public void readRoster(Roster roster) {
1392        final SQLiteDatabase db = this.getReadableDatabase();
1393        final String[] args = {roster.getAccount().getUuid()};
1394        try (final Cursor cursor =
1395                db.query(Contact.TABLENAME, null, Contact.ACCOUNT + "=?", args, null, null, null)) {
1396            while (cursor.moveToNext()) {
1397                roster.initContact(Contact.fromCursor(cursor));
1398            }
1399        }
1400    }
1401
1402    public void writeRoster(final Roster roster) {
1403        long start = SystemClock.elapsedRealtime();
1404        final Account account = roster.getAccount();
1405        final SQLiteDatabase db = this.getWritableDatabase();
1406        db.beginTransaction();
1407        for (Contact contact : roster.getContacts()) {
1408            if (contact.getOption(Contact.Options.IN_ROSTER) || contact.hasAvatarOrPresenceName() || contact.getOption(Contact.Options.SYNCED_VIA_OTHER)) {
1409                db.insert(Contact.TABLENAME, null, contact.getContentValues());
1410            } else {
1411                String where = Contact.ACCOUNT + "=? AND " + Contact.JID + "=?";
1412                String[] whereArgs = {account.getUuid(), contact.getJid().toString()};
1413                db.delete(Contact.TABLENAME, where, whereArgs);
1414            }
1415        }
1416        db.setTransactionSuccessful();
1417        db.endTransaction();
1418        account.setRosterVersion(roster.getVersion());
1419        updateAccount(account);
1420        long duration = SystemClock.elapsedRealtime() - start;
1421        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": persisted roster in " + duration + "ms");
1422    }
1423
1424    public void deleteMessagesInConversation(Conversation conversation) {
1425        long start = SystemClock.elapsedRealtime();
1426        final SQLiteDatabase db = this.getWritableDatabase();
1427        db.beginTransaction();
1428        final String[] args = {conversation.getUuid()};
1429        int num = db.delete(Message.TABLENAME, Message.CONVERSATION + "=?", args);
1430        db.delete("cheogram.webxdc_updates", Message.CONVERSATION + "=?", args);
1431        db.setTransactionSuccessful();
1432        db.endTransaction();
1433        Log.d(Config.LOGTAG, "deleted " + num + " messages for " + conversation.getJid().asBareJid() + " in " + (SystemClock.elapsedRealtime() - start) + "ms");
1434    }
1435
1436    public void expireOldMessages(long timestamp) {
1437        final String[] args = {String.valueOf(timestamp)};
1438        SQLiteDatabase db = this.getReadableDatabase();
1439        db.beginTransaction();
1440        db.delete(Message.TABLENAME, "timeSent<?", args);
1441        db.setTransactionSuccessful();
1442        db.endTransaction();
1443    }
1444
1445    public MamReference getLastMessageReceived(Account account) {
1446        Cursor cursor = null;
1447        try {
1448            SQLiteDatabase db = this.getReadableDatabase();
1449            String sql = "select messages.timeSent,messages.serverMsgId from accounts join conversations on accounts.uuid=conversations.accountUuid join messages on conversations.uuid=messages.conversationUuid where accounts.uuid=? and (messages.status=0 or messages.carbon=1 or messages.serverMsgId not null) and (conversations.mode=0 or (messages.serverMsgId not null and messages.type=4)) order by messages.timesent desc limit 1";
1450            String[] args = {account.getUuid()};
1451            cursor = db.rawQuery(sql, args);
1452            if (cursor.getCount() == 0) {
1453                return null;
1454            } else {
1455                cursor.moveToFirst();
1456                return new MamReference(cursor.getLong(0), cursor.getString(1));
1457            }
1458        } catch (Exception e) {
1459            return null;
1460        } finally {
1461            if (cursor != null) {
1462                cursor.close();
1463            }
1464        }
1465    }
1466
1467    public long getLastTimeFingerprintUsed(Account account, String fingerprint) {
1468        String SQL = "select messages.timeSent from accounts join conversations on accounts.uuid=conversations.accountUuid join messages on conversations.uuid=messages.conversationUuid where accounts.uuid=? and messages.axolotl_fingerprint=? order by messages.timesent desc limit 1";
1469        String[] args = {account.getUuid(), fingerprint};
1470        Cursor cursor = getReadableDatabase().rawQuery(SQL, args);
1471        long time;
1472        if (cursor.moveToFirst()) {
1473            time = cursor.getLong(0);
1474        } else {
1475            time = 0;
1476        }
1477        cursor.close();
1478        return time;
1479    }
1480
1481    public MamReference getLastClearDate(Account account) {
1482        SQLiteDatabase db = this.getReadableDatabase();
1483        String[] columns = {Conversation.ATTRIBUTES};
1484        String selection = Conversation.ACCOUNT + "=?";
1485        String[] args = {account.getUuid()};
1486        Cursor cursor = db.query(Conversation.TABLENAME, columns, selection, args, null, null, null);
1487        MamReference maxClearDate = new MamReference(0);
1488        while (cursor.moveToNext()) {
1489            try {
1490                final JSONObject o = new JSONObject(cursor.getString(0));
1491                maxClearDate = MamReference.max(maxClearDate, MamReference.fromAttribute(o.getString(Conversation.ATTRIBUTE_LAST_CLEAR_HISTORY)));
1492            } catch (Exception e) {
1493                //ignored
1494            }
1495        }
1496        cursor.close();
1497        return maxClearDate;
1498    }
1499
1500    private Cursor getCursorForSession(Account account, SignalProtocolAddress contact) {
1501        final SQLiteDatabase db = this.getReadableDatabase();
1502        String[] selectionArgs = {account.getUuid(),
1503                contact.getName(),
1504                Integer.toString(contact.getDeviceId())};
1505        return db.query(SQLiteAxolotlStore.SESSION_TABLENAME,
1506                null,
1507                SQLiteAxolotlStore.ACCOUNT + " = ? AND "
1508                        + SQLiteAxolotlStore.NAME + " = ? AND "
1509                        + SQLiteAxolotlStore.DEVICE_ID + " = ? ",
1510                selectionArgs,
1511                null, null, null);
1512    }
1513
1514    public SessionRecord loadSession(Account account, SignalProtocolAddress contact) {
1515        SessionRecord session = null;
1516        Cursor cursor = getCursorForSession(account, contact);
1517        if (cursor.getCount() != 0) {
1518            cursor.moveToFirst();
1519            try {
1520                session = new SessionRecord(Base64.decode(cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY)), Base64.DEFAULT));
1521            } catch (IOException e) {
1522                cursor.close();
1523                throw new AssertionError(e);
1524            }
1525        }
1526        cursor.close();
1527        return session;
1528    }
1529
1530    public List<Integer> getSubDeviceSessions(Account account, SignalProtocolAddress contact) {
1531        final SQLiteDatabase db = this.getReadableDatabase();
1532        return getSubDeviceSessions(db, account, contact);
1533    }
1534
1535    private List<Integer> getSubDeviceSessions(SQLiteDatabase db, Account account, SignalProtocolAddress contact) {
1536        List<Integer> devices = new ArrayList<>();
1537        String[] columns = {SQLiteAxolotlStore.DEVICE_ID};
1538        String[] selectionArgs = {account.getUuid(),
1539                contact.getName()};
1540        Cursor cursor = db.query(SQLiteAxolotlStore.SESSION_TABLENAME,
1541                columns,
1542                SQLiteAxolotlStore.ACCOUNT + " = ? AND "
1543                        + SQLiteAxolotlStore.NAME + " = ?",
1544                selectionArgs,
1545                null, null, null);
1546
1547        while (cursor.moveToNext()) {
1548            devices.add(cursor.getInt(
1549                    cursor.getColumnIndex(SQLiteAxolotlStore.DEVICE_ID)));
1550        }
1551
1552        cursor.close();
1553        return devices;
1554    }
1555
1556    public List<String> getKnownSignalAddresses(Account account) {
1557        List<String> addresses = new ArrayList<>();
1558        String[] colums = {"DISTINCT " + SQLiteAxolotlStore.NAME};
1559        String[] selectionArgs = {account.getUuid()};
1560        Cursor cursor = getReadableDatabase().query(SQLiteAxolotlStore.SESSION_TABLENAME,
1561                colums,
1562                SQLiteAxolotlStore.ACCOUNT + " = ?",
1563                selectionArgs,
1564                null, null, null
1565        );
1566        while (cursor.moveToNext()) {
1567            addresses.add(cursor.getString(0));
1568        }
1569        cursor.close();
1570        return addresses;
1571    }
1572
1573    public boolean containsSession(Account account, SignalProtocolAddress contact) {
1574        Cursor cursor = getCursorForSession(account, contact);
1575        int count = cursor.getCount();
1576        cursor.close();
1577        return count != 0;
1578    }
1579
1580    public void storeSession(Account account, SignalProtocolAddress contact, SessionRecord session) {
1581        SQLiteDatabase db = this.getWritableDatabase();
1582        ContentValues values = new ContentValues();
1583        values.put(SQLiteAxolotlStore.NAME, contact.getName());
1584        values.put(SQLiteAxolotlStore.DEVICE_ID, contact.getDeviceId());
1585        values.put(SQLiteAxolotlStore.KEY, Base64.encodeToString(session.serialize(), Base64.DEFAULT));
1586        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
1587        db.insert(SQLiteAxolotlStore.SESSION_TABLENAME, null, values);
1588    }
1589
1590    public void deleteSession(Account account, SignalProtocolAddress contact) {
1591        SQLiteDatabase db = this.getWritableDatabase();
1592        deleteSession(db, account, contact);
1593    }
1594
1595    private void deleteSession(SQLiteDatabase db, Account account, SignalProtocolAddress contact) {
1596        String[] args = {account.getUuid(),
1597                contact.getName(),
1598                Integer.toString(contact.getDeviceId())};
1599        db.delete(SQLiteAxolotlStore.SESSION_TABLENAME,
1600                SQLiteAxolotlStore.ACCOUNT + " = ? AND "
1601                        + SQLiteAxolotlStore.NAME + " = ? AND "
1602                        + SQLiteAxolotlStore.DEVICE_ID + " = ? ",
1603                args);
1604    }
1605
1606    public void deleteAllSessions(Account account, SignalProtocolAddress contact) {
1607        SQLiteDatabase db = this.getWritableDatabase();
1608        String[] args = {account.getUuid(), contact.getName()};
1609        db.delete(SQLiteAxolotlStore.SESSION_TABLENAME,
1610                SQLiteAxolotlStore.ACCOUNT + "=? AND "
1611                        + SQLiteAxolotlStore.NAME + " = ?",
1612                args);
1613    }
1614
1615    private Cursor getCursorForPreKey(Account account, int preKeyId) {
1616        SQLiteDatabase db = this.getReadableDatabase();
1617        String[] columns = {SQLiteAxolotlStore.KEY};
1618        String[] selectionArgs = {account.getUuid(), Integer.toString(preKeyId)};
1619        Cursor cursor = db.query(SQLiteAxolotlStore.PREKEY_TABLENAME,
1620                columns,
1621                SQLiteAxolotlStore.ACCOUNT + "=? AND "
1622                        + SQLiteAxolotlStore.ID + "=?",
1623                selectionArgs,
1624                null, null, null);
1625
1626        return cursor;
1627    }
1628
1629    public PreKeyRecord loadPreKey(Account account, int preKeyId) {
1630        PreKeyRecord record = null;
1631        Cursor cursor = getCursorForPreKey(account, preKeyId);
1632        if (cursor.getCount() != 0) {
1633            cursor.moveToFirst();
1634            try {
1635                record = new PreKeyRecord(Base64.decode(cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY)), Base64.DEFAULT));
1636            } catch (IOException e) {
1637                throw new AssertionError(e);
1638            }
1639        }
1640        cursor.close();
1641        return record;
1642    }
1643
1644    public boolean containsPreKey(Account account, int preKeyId) {
1645        Cursor cursor = getCursorForPreKey(account, preKeyId);
1646        int count = cursor.getCount();
1647        cursor.close();
1648        return count != 0;
1649    }
1650
1651    public void storePreKey(Account account, PreKeyRecord record) {
1652        SQLiteDatabase db = this.getWritableDatabase();
1653        ContentValues values = new ContentValues();
1654        values.put(SQLiteAxolotlStore.ID, record.getId());
1655        values.put(SQLiteAxolotlStore.KEY, Base64.encodeToString(record.serialize(), Base64.DEFAULT));
1656        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
1657        db.insert(SQLiteAxolotlStore.PREKEY_TABLENAME, null, values);
1658    }
1659
1660    public int deletePreKey(Account account, int preKeyId) {
1661        SQLiteDatabase db = this.getWritableDatabase();
1662        String[] args = {account.getUuid(), Integer.toString(preKeyId)};
1663        return db.delete(SQLiteAxolotlStore.PREKEY_TABLENAME,
1664                SQLiteAxolotlStore.ACCOUNT + "=? AND "
1665                        + SQLiteAxolotlStore.ID + "=?",
1666                args);
1667    }
1668
1669    private Cursor getCursorForSignedPreKey(Account account, int signedPreKeyId) {
1670        SQLiteDatabase db = this.getReadableDatabase();
1671        String[] columns = {SQLiteAxolotlStore.KEY};
1672        String[] selectionArgs = {account.getUuid(), Integer.toString(signedPreKeyId)};
1673        Cursor cursor = db.query(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
1674                columns,
1675                SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.ID + "=?",
1676                selectionArgs,
1677                null, null, null);
1678
1679        return cursor;
1680    }
1681
1682    public SignedPreKeyRecord loadSignedPreKey(Account account, int signedPreKeyId) {
1683        SignedPreKeyRecord record = null;
1684        Cursor cursor = getCursorForSignedPreKey(account, signedPreKeyId);
1685        if (cursor.getCount() != 0) {
1686            cursor.moveToFirst();
1687            try {
1688                record = new SignedPreKeyRecord(Base64.decode(cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY)), Base64.DEFAULT));
1689            } catch (IOException e) {
1690                throw new AssertionError(e);
1691            }
1692        }
1693        cursor.close();
1694        return record;
1695    }
1696
1697    public List<SignedPreKeyRecord> loadSignedPreKeys(Account account) {
1698        List<SignedPreKeyRecord> prekeys = new ArrayList<>();
1699        SQLiteDatabase db = this.getReadableDatabase();
1700        String[] columns = {SQLiteAxolotlStore.KEY};
1701        String[] selectionArgs = {account.getUuid()};
1702        Cursor cursor = db.query(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
1703                columns,
1704                SQLiteAxolotlStore.ACCOUNT + "=?",
1705                selectionArgs,
1706                null, null, null);
1707
1708        while (cursor.moveToNext()) {
1709            try {
1710                prekeys.add(new SignedPreKeyRecord(Base64.decode(cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY)), Base64.DEFAULT)));
1711            } catch (IOException ignored) {
1712            }
1713        }
1714        cursor.close();
1715        return prekeys;
1716    }
1717
1718    public int getSignedPreKeysCount(Account account) {
1719        String[] columns = {"count(" + SQLiteAxolotlStore.KEY + ")"};
1720        String[] selectionArgs = {account.getUuid()};
1721        SQLiteDatabase db = this.getReadableDatabase();
1722        Cursor cursor = db.query(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
1723                columns,
1724                SQLiteAxolotlStore.ACCOUNT + "=?",
1725                selectionArgs,
1726                null, null, null);
1727        final int count;
1728        if (cursor.moveToFirst()) {
1729            count = cursor.getInt(0);
1730        } else {
1731            count = 0;
1732        }
1733        cursor.close();
1734        return count;
1735    }
1736
1737    public boolean containsSignedPreKey(Account account, int signedPreKeyId) {
1738        Cursor cursor = getCursorForPreKey(account, signedPreKeyId);
1739        int count = cursor.getCount();
1740        cursor.close();
1741        return count != 0;
1742    }
1743
1744    public void storeSignedPreKey(Account account, SignedPreKeyRecord record) {
1745        SQLiteDatabase db = this.getWritableDatabase();
1746        ContentValues values = new ContentValues();
1747        values.put(SQLiteAxolotlStore.ID, record.getId());
1748        values.put(SQLiteAxolotlStore.KEY, Base64.encodeToString(record.serialize(), Base64.DEFAULT));
1749        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
1750        db.insert(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME, null, values);
1751    }
1752
1753    public void deleteSignedPreKey(Account account, int signedPreKeyId) {
1754        SQLiteDatabase db = this.getWritableDatabase();
1755        String[] args = {account.getUuid(), Integer.toString(signedPreKeyId)};
1756        db.delete(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
1757                SQLiteAxolotlStore.ACCOUNT + "=? AND "
1758                        + SQLiteAxolotlStore.ID + "=?",
1759                args);
1760    }
1761
1762    private Cursor getIdentityKeyCursor(Account account, String name, boolean own) {
1763        final SQLiteDatabase db = this.getReadableDatabase();
1764        return getIdentityKeyCursor(db, account, name, own);
1765    }
1766
1767    private Cursor getIdentityKeyCursor(SQLiteDatabase db, Account account, String name, boolean own) {
1768        return getIdentityKeyCursor(db, account, name, own, null);
1769    }
1770
1771    private Cursor getIdentityKeyCursor(Account account, String fingerprint) {
1772        final SQLiteDatabase db = this.getReadableDatabase();
1773        return getIdentityKeyCursor(db, account, fingerprint);
1774    }
1775
1776    private Cursor getIdentityKeyCursor(SQLiteDatabase db, Account account, String fingerprint) {
1777        return getIdentityKeyCursor(db, account, null, null, fingerprint);
1778    }
1779
1780    private Cursor getIdentityKeyCursor(SQLiteDatabase db, Account account, String name, Boolean own, String fingerprint) {
1781        String[] columns = {SQLiteAxolotlStore.TRUST,
1782                SQLiteAxolotlStore.ACTIVE,
1783                SQLiteAxolotlStore.LAST_ACTIVATION,
1784                SQLiteAxolotlStore.KEY};
1785        ArrayList<String> selectionArgs = new ArrayList<>(4);
1786        selectionArgs.add(account.getUuid());
1787        String selectionString = SQLiteAxolotlStore.ACCOUNT + " = ?";
1788        if (name != null) {
1789            selectionArgs.add(name);
1790            selectionString += " AND " + SQLiteAxolotlStore.NAME + " = ?";
1791        }
1792        if (fingerprint != null) {
1793            selectionArgs.add(fingerprint);
1794            selectionString += " AND " + SQLiteAxolotlStore.FINGERPRINT + " = ?";
1795        }
1796        if (own != null) {
1797            selectionArgs.add(own ? "1" : "0");
1798            selectionString += " AND " + SQLiteAxolotlStore.OWN + " = ?";
1799        }
1800        Cursor cursor = db.query(SQLiteAxolotlStore.IDENTITIES_TABLENAME,
1801                columns,
1802                selectionString,
1803                selectionArgs.toArray(new String[selectionArgs.size()]),
1804                null, null, null);
1805
1806        return cursor;
1807    }
1808
1809    public IdentityKeyPair loadOwnIdentityKeyPair(Account account) {
1810        SQLiteDatabase db = getReadableDatabase();
1811        return loadOwnIdentityKeyPair(db, account);
1812    }
1813
1814    private IdentityKeyPair loadOwnIdentityKeyPair(SQLiteDatabase db, Account account) {
1815        String name = account.getJid().asBareJid().toString();
1816        IdentityKeyPair identityKeyPair = null;
1817        Cursor cursor = getIdentityKeyCursor(db, account, name, true);
1818        if (cursor.getCount() != 0) {
1819            cursor.moveToFirst();
1820            try {
1821                identityKeyPair = new IdentityKeyPair(Base64.decode(cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY)), Base64.DEFAULT));
1822            } catch (InvalidKeyException e) {
1823                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Encountered invalid IdentityKey in database for account" + account.getJid().asBareJid() + ", address: " + name);
1824            }
1825        }
1826        cursor.close();
1827
1828        return identityKeyPair;
1829    }
1830
1831    public Set<IdentityKey> loadIdentityKeys(Account account, String name) {
1832        return loadIdentityKeys(account, name, null);
1833    }
1834
1835    public Set<IdentityKey> loadIdentityKeys(Account account, String name, FingerprintStatus status) {
1836        Set<IdentityKey> identityKeys = new HashSet<>();
1837        Cursor cursor = getIdentityKeyCursor(account, name, false);
1838
1839        while (cursor.moveToNext()) {
1840            if (status != null && !FingerprintStatus.fromCursor(cursor).equals(status)) {
1841                continue;
1842            }
1843            try {
1844                String key = cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY));
1845                if (key != null) {
1846                    identityKeys.add(new IdentityKey(Base64.decode(key, Base64.DEFAULT), 0));
1847                } else {
1848                    Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Missing key (possibly preverified) in database for account" + account.getJid().asBareJid() + ", address: " + name);
1849                }
1850            } catch (InvalidKeyException e) {
1851                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Encountered invalid IdentityKey in database for account" + account.getJid().asBareJid() + ", address: " + name);
1852            }
1853        }
1854        cursor.close();
1855
1856        return identityKeys;
1857    }
1858
1859    public long numTrustedKeys(Account account, String name) {
1860        SQLiteDatabase db = getReadableDatabase();
1861        String[] args = {
1862                account.getUuid(),
1863                name,
1864                FingerprintStatus.Trust.TRUSTED.toString(),
1865                FingerprintStatus.Trust.VERIFIED.toString(),
1866                FingerprintStatus.Trust.VERIFIED_X509.toString()
1867        };
1868        return DatabaseUtils.queryNumEntries(db, SQLiteAxolotlStore.IDENTITIES_TABLENAME,
1869                SQLiteAxolotlStore.ACCOUNT + " = ?"
1870                        + " AND " + SQLiteAxolotlStore.NAME + " = ?"
1871                        + " AND (" + SQLiteAxolotlStore.TRUST + " = ? OR " + SQLiteAxolotlStore.TRUST + " = ? OR " + SQLiteAxolotlStore.TRUST + " = ?)"
1872                        + " AND " + SQLiteAxolotlStore.ACTIVE + " > 0",
1873                args
1874        );
1875    }
1876
1877    private void storeIdentityKey(Account account, String name, boolean own, String fingerprint, String base64Serialized, FingerprintStatus status) {
1878        SQLiteDatabase db = this.getWritableDatabase();
1879        ContentValues values = new ContentValues();
1880        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
1881        values.put(SQLiteAxolotlStore.NAME, name);
1882        values.put(SQLiteAxolotlStore.OWN, own ? 1 : 0);
1883        values.put(SQLiteAxolotlStore.FINGERPRINT, fingerprint);
1884        values.put(SQLiteAxolotlStore.KEY, base64Serialized);
1885        values.putAll(status.toContentValues());
1886        String where = SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.NAME + "=? AND " + SQLiteAxolotlStore.FINGERPRINT + " =?";
1887        String[] whereArgs = {account.getUuid(), name, fingerprint};
1888        int rows = db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, values, where, whereArgs);
1889        if (rows == 0) {
1890            db.insert(SQLiteAxolotlStore.IDENTITIES_TABLENAME, null, values);
1891        }
1892    }
1893
1894    public void storePreVerification(Account account, String name, String fingerprint, FingerprintStatus status) {
1895        SQLiteDatabase db = this.getWritableDatabase();
1896        ContentValues values = new ContentValues();
1897        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
1898        values.put(SQLiteAxolotlStore.NAME, name);
1899        values.put(SQLiteAxolotlStore.OWN, 0);
1900        values.put(SQLiteAxolotlStore.FINGERPRINT, fingerprint);
1901        values.putAll(status.toContentValues());
1902        db.insert(SQLiteAxolotlStore.IDENTITIES_TABLENAME, null, values);
1903    }
1904
1905    public FingerprintStatus getFingerprintStatus(Account account, String fingerprint) {
1906        Cursor cursor = getIdentityKeyCursor(account, fingerprint);
1907        final FingerprintStatus status;
1908        if (cursor.getCount() > 0) {
1909            cursor.moveToFirst();
1910            status = FingerprintStatus.fromCursor(cursor);
1911        } else {
1912            status = null;
1913        }
1914        cursor.close();
1915        return status;
1916    }
1917
1918    public boolean setIdentityKeyTrust(Account account, String fingerprint, FingerprintStatus fingerprintStatus) {
1919        SQLiteDatabase db = this.getWritableDatabase();
1920        return setIdentityKeyTrust(db, account, fingerprint, fingerprintStatus);
1921    }
1922
1923    private boolean setIdentityKeyTrust(SQLiteDatabase db, Account account, String fingerprint, FingerprintStatus status) {
1924        String[] selectionArgs = {
1925                account.getUuid(),
1926                fingerprint
1927        };
1928        int rows = db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, status.toContentValues(),
1929                SQLiteAxolotlStore.ACCOUNT + " = ? AND "
1930                        + SQLiteAxolotlStore.FINGERPRINT + " = ? ",
1931                selectionArgs);
1932        return rows == 1;
1933    }
1934
1935    public boolean setIdentityKeyCertificate(Account account, String fingerprint, X509Certificate x509Certificate) {
1936        SQLiteDatabase db = this.getWritableDatabase();
1937        String[] selectionArgs = {
1938                account.getUuid(),
1939                fingerprint
1940        };
1941        try {
1942            ContentValues values = new ContentValues();
1943            values.put(SQLiteAxolotlStore.CERTIFICATE, x509Certificate.getEncoded());
1944            return db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, values,
1945                    SQLiteAxolotlStore.ACCOUNT + " = ? AND "
1946                            + SQLiteAxolotlStore.FINGERPRINT + " = ? ",
1947                    selectionArgs) == 1;
1948        } catch (CertificateEncodingException e) {
1949            Log.d(Config.LOGTAG, "could not encode certificate");
1950            return false;
1951        }
1952    }
1953
1954    public X509Certificate getIdentityKeyCertifcate(Account account, String fingerprint) {
1955        SQLiteDatabase db = this.getReadableDatabase();
1956        String[] selectionArgs = {
1957                account.getUuid(),
1958                fingerprint
1959        };
1960        String[] colums = {SQLiteAxolotlStore.CERTIFICATE};
1961        String selection = SQLiteAxolotlStore.ACCOUNT + " = ? AND " + SQLiteAxolotlStore.FINGERPRINT + " = ? ";
1962        Cursor cursor = db.query(SQLiteAxolotlStore.IDENTITIES_TABLENAME, colums, selection, selectionArgs, null, null, null);
1963        if (cursor.getCount() < 1) {
1964            return null;
1965        } else {
1966            cursor.moveToFirst();
1967            byte[] certificate = cursor.getBlob(cursor.getColumnIndex(SQLiteAxolotlStore.CERTIFICATE));
1968            cursor.close();
1969            if (certificate == null || certificate.length == 0) {
1970                return null;
1971            }
1972            try {
1973                CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
1974                return (X509Certificate) certificateFactory.generateCertificate(new ByteArrayInputStream(certificate));
1975            } catch (CertificateException e) {
1976                Log.d(Config.LOGTAG, "certificate exception " + e.getMessage());
1977                return null;
1978            }
1979        }
1980    }
1981
1982    public void storeIdentityKey(Account account, String name, IdentityKey identityKey, FingerprintStatus status) {
1983        storeIdentityKey(account, name, false, CryptoHelper.bytesToHex(identityKey.getPublicKey().serialize()), Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT), status);
1984    }
1985
1986    public void storeOwnIdentityKeyPair(Account account, IdentityKeyPair identityKeyPair) {
1987        storeIdentityKey(account, account.getJid().asBareJid().toString(), true, CryptoHelper.bytesToHex(identityKeyPair.getPublicKey().serialize()), Base64.encodeToString(identityKeyPair.serialize(), Base64.DEFAULT), FingerprintStatus.createActiveVerified(false));
1988    }
1989
1990
1991    private void recreateAxolotlDb(SQLiteDatabase db) {
1992        Log.d(Config.LOGTAG, AxolotlService.LOGPREFIX + " : " + ">>> (RE)CREATING AXOLOTL DATABASE <<<");
1993        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.SESSION_TABLENAME);
1994        db.execSQL(CREATE_SESSIONS_STATEMENT);
1995        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.PREKEY_TABLENAME);
1996        db.execSQL(CREATE_PREKEYS_STATEMENT);
1997        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME);
1998        db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT);
1999        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.IDENTITIES_TABLENAME);
2000        db.execSQL(CREATE_IDENTITIES_STATEMENT);
2001    }
2002
2003    public void wipeAxolotlDb(Account account) {
2004        String accountName = account.getUuid();
2005        Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + ">>> WIPING AXOLOTL DATABASE FOR ACCOUNT " + accountName + " <<<");
2006        SQLiteDatabase db = this.getWritableDatabase();
2007        String[] deleteArgs = {
2008                accountName
2009        };
2010        db.delete(SQLiteAxolotlStore.SESSION_TABLENAME,
2011                SQLiteAxolotlStore.ACCOUNT + " = ?",
2012                deleteArgs);
2013        db.delete(SQLiteAxolotlStore.PREKEY_TABLENAME,
2014                SQLiteAxolotlStore.ACCOUNT + " = ?",
2015                deleteArgs);
2016        db.delete(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
2017                SQLiteAxolotlStore.ACCOUNT + " = ?",
2018                deleteArgs);
2019        db.delete(SQLiteAxolotlStore.IDENTITIES_TABLENAME,
2020                SQLiteAxolotlStore.ACCOUNT + " = ?",
2021                deleteArgs);
2022    }
2023
2024    public List<ShortcutService.FrequentContact> getFrequentContacts(int days) {
2025        SQLiteDatabase db = this.getReadableDatabase();
2026        final String SQL = "select " + Conversation.TABLENAME + "." + Conversation.ACCOUNT + "," + Conversation.TABLENAME + "." + Conversation.CONTACTJID + " from " + Conversation.TABLENAME + " join " + Message.TABLENAME + " on conversations.uuid=messages.conversationUuid where messages.status!=0 and carbon==0  and conversations.mode=0 and messages.timeSent>=? group by conversations.uuid order by count(body) desc limit 4;";
2027        String[] whereArgs = new String[]{String.valueOf(System.currentTimeMillis() - (Config.MILLISECONDS_IN_DAY * days))};
2028        Cursor cursor = db.rawQuery(SQL, whereArgs);
2029        ArrayList<ShortcutService.FrequentContact> contacts = new ArrayList<>();
2030        while (cursor.moveToNext()) {
2031            try {
2032                contacts.add(new ShortcutService.FrequentContact(cursor.getString(0), Jid.of(cursor.getString(1))));
2033            } catch (Exception e) {
2034                Log.d(Config.LOGTAG, e.getMessage());
2035            }
2036        }
2037        cursor.close();
2038        return contacts;
2039    }
2040}