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.SQLiteAbortException;
   8import android.database.sqlite.SQLiteDatabase;
   9import android.database.sqlite.SQLiteException;
  10import android.database.sqlite.SQLiteOpenHelper;
  11import android.text.TextUtils;
  12import android.os.Build;
  13import android.os.Environment;
  14import android.os.SystemClock;
  15import android.util.Base64;
  16import android.util.Log;
  17import com.cheogram.android.WebxdcUpdate;
  18
  19import com.google.common.base.Stopwatch;
  20import com.google.common.collect.Multimap;
  21import com.google.common.collect.HashMultimap;
  22
  23import org.json.JSONException;
  24import org.json.JSONObject;
  25import org.jxmpp.jid.parts.Localpart;
  26import org.jxmpp.stringprep.XmppStringprepException;
  27import org.whispersystems.libsignal.IdentityKey;
  28import org.whispersystems.libsignal.IdentityKeyPair;
  29import org.whispersystems.libsignal.InvalidKeyException;
  30import org.whispersystems.libsignal.SignalProtocolAddress;
  31import org.whispersystems.libsignal.state.PreKeyRecord;
  32import org.whispersystems.libsignal.state.SessionRecord;
  33import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  34
  35import java.io.ByteArrayInputStream;
  36import java.io.File;
  37import java.io.IOException;
  38import java.nio.charset.StandardCharsets;
  39import java.security.cert.CertificateEncodingException;
  40import java.security.cert.CertificateException;
  41import java.security.cert.CertificateFactory;
  42import java.security.cert.X509Certificate;
  43import java.util.ArrayList;
  44import java.util.Collection;
  45import java.util.HashMap;
  46import java.util.Hashtable;
  47import java.util.HashSet;
  48import java.util.List;
  49import java.util.Map;
  50import java.util.Set;
  51import java.util.UUID;
  52import java.util.concurrent.CopyOnWriteArrayList;
  53
  54import im.conversations.android.xmpp.model.occupant.OccupantId;
  55import io.ipfs.cid.Cid;
  56
  57import com.google.common.collect.ImmutableMap;
  58import eu.siacs.conversations.Config;
  59import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  60import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  61import eu.siacs.conversations.crypto.axolotl.SQLiteAxolotlStore;
  62import eu.siacs.conversations.entities.Account;
  63import eu.siacs.conversations.entities.Contact;
  64import eu.siacs.conversations.entities.Conversation;
  65import eu.siacs.conversations.entities.DownloadableFile;
  66import eu.siacs.conversations.entities.Message;
  67import eu.siacs.conversations.entities.MucOptions;
  68import eu.siacs.conversations.entities.PresenceTemplate;
  69import eu.siacs.conversations.services.QuickConversationsService;
  70import eu.siacs.conversations.services.ShortcutService;
  71import eu.siacs.conversations.utils.CryptoHelper;
  72import eu.siacs.conversations.utils.CursorUtils;
  73import eu.siacs.conversations.utils.FtsUtils;
  74import eu.siacs.conversations.utils.MimeUtils;
  75import eu.siacs.conversations.utils.Resolver;
  76import eu.siacs.conversations.xml.Namespace;
  77import eu.siacs.conversations.xmpp.Jid;
  78import eu.siacs.conversations.xmpp.mam.MamReference;
  79import im.conversations.android.xml.XmlElementReader;
  80import im.conversations.android.xmpp.EntityCapabilities;
  81import im.conversations.android.xmpp.EntityCapabilities2;
  82import im.conversations.android.xmpp.model.disco.info.InfoQuery;
  83
  84public class DatabaseBackend extends SQLiteOpenHelper {
  85
  86    private static final String DATABASE_NAME = "history";
  87    private static final int DATABASE_VERSION = 54;
  88
  89    private static boolean requiresMessageIndexRebuild = false;
  90    private static DatabaseBackend instance = null;
  91    private static final String CREATE_CONTACTS_STATEMENT =
  92            "create table "
  93                    + Contact.TABLENAME
  94                    + "("
  95                    + Contact.ACCOUNT
  96                    + " TEXT, "
  97                    + Contact.SERVERNAME
  98                    + " TEXT, "
  99                    + Contact.SYSTEMNAME
 100                    + " TEXT,"
 101                    + Contact.PRESENCE_NAME
 102                    + " TEXT,"
 103                    + Contact.JID
 104                    + " TEXT,"
 105                    + Contact.KEYS
 106                    + " TEXT,"
 107                    + Contact.PHOTOURI
 108                    + " TEXT,"
 109                    + Contact.OPTIONS
 110                    + " NUMBER,"
 111                    + Contact.SYSTEMACCOUNT
 112                    + " NUMBER, "
 113                    + Contact.AVATAR
 114                    + " TEXT, "
 115                    + Contact.LAST_PRESENCE
 116                    + " TEXT, "
 117                    + Contact.LAST_TIME
 118                    + " NUMBER, "
 119                    + Contact.RTP_CAPABILITY
 120                    + " TEXT,"
 121                    + Contact.GROUPS
 122                    + " TEXT, FOREIGN KEY("
 123                    + Contact.ACCOUNT
 124                    + ") REFERENCES "
 125                    + Account.TABLENAME
 126                    + "("
 127                    + Account.UUID
 128                    + ") ON DELETE CASCADE, UNIQUE("
 129                    + Contact.ACCOUNT
 130                    + ", "
 131                    + Contact.JID
 132                    + ") ON CONFLICT REPLACE);";
 133
 134    private static final String CREATE_PRESENCE_TEMPLATES_STATEMENT =
 135            "CREATE TABLE "
 136                    + PresenceTemplate.TABELNAME
 137                    + "("
 138                    + PresenceTemplate.UUID
 139                    + " TEXT, "
 140                    + PresenceTemplate.LAST_USED
 141                    + " NUMBER,"
 142                    + PresenceTemplate.MESSAGE
 143                    + " TEXT,"
 144                    + PresenceTemplate.STATUS
 145                    + " TEXT,"
 146                    + "UNIQUE("
 147                    + PresenceTemplate.MESSAGE
 148                    + ","
 149                    + PresenceTemplate.STATUS
 150                    + ") ON CONFLICT REPLACE);";
 151
 152    private static final String CREATE_PREKEYS_STATEMENT =
 153            "CREATE TABLE "
 154                    + SQLiteAxolotlStore.PREKEY_TABLENAME
 155                    + "("
 156                    + SQLiteAxolotlStore.ACCOUNT
 157                    + " TEXT,  "
 158                    + SQLiteAxolotlStore.ID
 159                    + " INTEGER, "
 160                    + SQLiteAxolotlStore.KEY
 161                    + " TEXT, FOREIGN KEY("
 162                    + SQLiteAxolotlStore.ACCOUNT
 163                    + ") REFERENCES "
 164                    + Account.TABLENAME
 165                    + "("
 166                    + Account.UUID
 167                    + ") ON DELETE CASCADE, "
 168                    + "UNIQUE( "
 169                    + SQLiteAxolotlStore.ACCOUNT
 170                    + ", "
 171                    + SQLiteAxolotlStore.ID
 172                    + ") ON CONFLICT REPLACE"
 173                    + ");";
 174
 175    private static final String CREATE_SIGNED_PREKEYS_STATEMENT =
 176            "CREATE TABLE "
 177                    + SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME
 178                    + "("
 179                    + SQLiteAxolotlStore.ACCOUNT
 180                    + " TEXT,  "
 181                    + SQLiteAxolotlStore.ID
 182                    + " INTEGER, "
 183                    + SQLiteAxolotlStore.KEY
 184                    + " TEXT, FOREIGN KEY("
 185                    + SQLiteAxolotlStore.ACCOUNT
 186                    + ") REFERENCES "
 187                    + Account.TABLENAME
 188                    + "("
 189                    + Account.UUID
 190                    + ") ON DELETE CASCADE, "
 191                    + "UNIQUE( "
 192                    + SQLiteAxolotlStore.ACCOUNT
 193                    + ", "
 194                    + SQLiteAxolotlStore.ID
 195                    + ") ON CONFLICT REPLACE"
 196                    + ");";
 197
 198    private static final String CREATE_SESSIONS_STATEMENT =
 199            "CREATE TABLE "
 200                    + SQLiteAxolotlStore.SESSION_TABLENAME
 201                    + "("
 202                    + SQLiteAxolotlStore.ACCOUNT
 203                    + " TEXT,  "
 204                    + SQLiteAxolotlStore.NAME
 205                    + " TEXT, "
 206                    + SQLiteAxolotlStore.DEVICE_ID
 207                    + " INTEGER, "
 208                    + SQLiteAxolotlStore.KEY
 209                    + " TEXT, FOREIGN KEY("
 210                    + SQLiteAxolotlStore.ACCOUNT
 211                    + ") REFERENCES "
 212                    + Account.TABLENAME
 213                    + "("
 214                    + Account.UUID
 215                    + ") ON DELETE CASCADE, "
 216                    + "UNIQUE( "
 217                    + SQLiteAxolotlStore.ACCOUNT
 218                    + ", "
 219                    + SQLiteAxolotlStore.NAME
 220                    + ", "
 221                    + SQLiteAxolotlStore.DEVICE_ID
 222                    + ") ON CONFLICT REPLACE"
 223                    + ");";
 224
 225    private static final String CREATE_IDENTITIES_STATEMENT =
 226            "CREATE TABLE "
 227                    + SQLiteAxolotlStore.IDENTITIES_TABLENAME
 228                    + "("
 229                    + SQLiteAxolotlStore.ACCOUNT
 230                    + " TEXT,  "
 231                    + SQLiteAxolotlStore.NAME
 232                    + " TEXT, "
 233                    + SQLiteAxolotlStore.OWN
 234                    + " INTEGER, "
 235                    + SQLiteAxolotlStore.FINGERPRINT
 236                    + " TEXT, "
 237                    + SQLiteAxolotlStore.CERTIFICATE
 238                    + " BLOB, "
 239                    + SQLiteAxolotlStore.TRUST
 240                    + " TEXT, "
 241                    + SQLiteAxolotlStore.ACTIVE
 242                    + " NUMBER, "
 243                    + SQLiteAxolotlStore.LAST_ACTIVATION
 244                    + " NUMBER,"
 245                    + SQLiteAxolotlStore.KEY
 246                    + " TEXT, FOREIGN KEY("
 247                    + SQLiteAxolotlStore.ACCOUNT
 248                    + ") REFERENCES "
 249                    + Account.TABLENAME
 250                    + "("
 251                    + Account.UUID
 252                    + ") ON DELETE CASCADE, "
 253                    + "UNIQUE( "
 254                    + SQLiteAxolotlStore.ACCOUNT
 255                    + ", "
 256                    + SQLiteAxolotlStore.NAME
 257                    + ", "
 258                    + SQLiteAxolotlStore.FINGERPRINT
 259                    + ") ON CONFLICT IGNORE"
 260                    + ");";
 261
 262    private static final String CREATE_CAPS_CACHE_TABLE =
 263            "CREATE TABLE caps_cache (caps TEXT, caps2 TEXT, disco_info TEXT, UNIQUE (caps), UNIQUE"
 264                    + " (caps2));";
 265    private static final String CREATE_CAPS_CACHE_INDEX_CAPS =
 266            "CREATE INDEX idx_caps ON caps_cache(caps);";
 267    private static final String CREATE_CAPS_CACHE_INDEX_CAPS2 =
 268            "CREATE INDEX idx_caps2 ON caps_cache(caps2);";
 269
 270    private static final String RESOLVER_RESULTS_TABLENAME = "resolver_results";
 271
 272    private static final String CREATE_RESOLVER_RESULTS_TABLE =
 273            "create table "
 274                    + RESOLVER_RESULTS_TABLENAME
 275                    + "("
 276                    + Resolver.Result.DOMAIN
 277                    + " TEXT,"
 278                    + Resolver.Result.HOSTNAME
 279                    + " TEXT,"
 280                    + Resolver.Result.IP
 281                    + " BLOB,"
 282                    + Resolver.Result.PRIORITY
 283                    + " NUMBER,"
 284                    + Resolver.Result.DIRECT_TLS
 285                    + " NUMBER,"
 286                    + Resolver.Result.AUTHENTICATED
 287                    + " NUMBER,"
 288                    + Resolver.Result.PORT
 289                    + " NUMBER,"
 290                    + "UNIQUE("
 291                    + Resolver.Result.DOMAIN
 292                    + ") ON CONFLICT REPLACE"
 293                    + ");";
 294
 295    private static final String CREATE_MESSAGE_TIME_INDEX =
 296            "CREATE INDEX message_time_index ON "
 297                    + Message.TABLENAME
 298                    + "("
 299                    + Message.TIME_SENT
 300                    + ")";
 301    private static final String CREATE_MESSAGE_CONVERSATION_INDEX =
 302            "CREATE INDEX message_conversation_index ON "
 303                    + Message.TABLENAME
 304                    + "("
 305                    + Message.CONVERSATION
 306                    + ")";
 307    private static final String CREATE_MESSAGE_DELETED_INDEX =
 308            "CREATE INDEX message_deleted_index ON "
 309                    + Message.TABLENAME
 310                    + "("
 311                    + Message.DELETED
 312                    + ")";
 313    private static final String CREATE_MESSAGE_RELATIVE_FILE_PATH_INDEX =
 314            "CREATE INDEX message_file_path_index ON "
 315                    + Message.TABLENAME
 316                    + "("
 317                    + Message.RELATIVE_FILE_PATH
 318                    + ")";
 319    private static final String CREATE_MESSAGE_TYPE_INDEX =
 320            "CREATE INDEX message_type_index ON " + Message.TABLENAME + "(" + Message.TYPE + ")";
 321
 322    private static final String CREATE_MESSAGE_INDEX_TABLE =
 323            "CREATE VIRTUAL TABLE messages_index USING fts4"
 324                    + " (uuid,body,notindexed=\"uuid\",content=\""
 325                    + Message.TABLENAME
 326                    + "\",tokenize='unicode61')";
 327    private static final String CREATE_MESSAGE_INSERT_TRIGGER =
 328            "CREATE TRIGGER after_message_insert AFTER INSERT ON "
 329                    + Message.TABLENAME
 330                    + " BEGIN INSERT INTO messages_index(rowid,uuid,body)"
 331                    + " VALUES(NEW.rowid,NEW.uuid,NEW.body); END;";
 332    private static final String CREATE_MESSAGE_UPDATE_TRIGGER =
 333            "CREATE TRIGGER after_message_update UPDATE OF uuid,body ON "
 334                    + Message.TABLENAME
 335                    + " BEGIN UPDATE messages_index SET body=NEW.body,uuid=NEW.uuid WHERE"
 336                    + " rowid=OLD.rowid; END;";
 337    private static final String CREATE_MESSAGE_DELETE_TRIGGER =
 338            "CREATE TRIGGER after_message_delete AFTER DELETE ON "
 339                    + Message.TABLENAME
 340                    + " BEGIN DELETE FROM messages_index WHERE rowid=OLD.rowid; END;";
 341    private static final String COPY_PREEXISTING_ENTRIES =
 342            "INSERT INTO messages_index(messages_index) VALUES('rebuild');";
 343
 344    protected Context context;
 345
 346    private DatabaseBackend(Context context) {
 347        super(context, DATABASE_NAME, null, DATABASE_VERSION);
 348        this.context = context;
 349        setWriteAheadLoggingEnabled(true);
 350    }
 351
 352    private static ContentValues createFingerprintStatusContentValues(
 353            FingerprintStatus.Trust trust, boolean active) {
 354        ContentValues values = new ContentValues();
 355        values.put(SQLiteAxolotlStore.TRUST, trust.toString());
 356        values.put(SQLiteAxolotlStore.ACTIVE, active ? 1 : 0);
 357        return values;
 358    }
 359
 360    public static boolean requiresMessageIndexRebuild() {
 361        return requiresMessageIndexRebuild;
 362    }
 363
 364    public void rebuildMessagesIndex() {
 365        final SQLiteDatabase db = getWritableDatabase();
 366        final Stopwatch stopwatch = Stopwatch.createStarted();
 367        db.execSQL(COPY_PREEXISTING_ENTRIES);
 368        Log.d(Config.LOGTAG, "rebuilt message index in " + stopwatch.stop());
 369    }
 370
 371    public static synchronized DatabaseBackend getInstance(Context context) {
 372        if (instance == null) {
 373            instance = new DatabaseBackend(context);
 374        }
 375        return instance;
 376    }
 377
 378    protected void cheogramMigrate(SQLiteDatabase db) {
 379        db.beginTransaction();
 380
 381        try {
 382            Cursor cursor = db.rawQuery("PRAGMA cheogram.user_version", null);
 383            cursor.moveToNext();
 384            int cheogramVersion = cursor.getInt(0);
 385            cursor.close();
 386
 387            if(cheogramVersion < 1) {
 388                // No cross-DB foreign keys unfortunately
 389                db.execSQL(
 390                    "CREATE TABLE cheogram." + Message.TABLENAME + "(" +
 391                    Message.UUID + " TEXT PRIMARY KEY, " +
 392                    "subject TEXT" +
 393                    ")"
 394                );
 395                db.execSQL("PRAGMA cheogram.user_version = 1");
 396            }
 397
 398            if(cheogramVersion < 2) {
 399                db.execSQL(
 400                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 401                    "ADD COLUMN oobUri TEXT"
 402                );
 403                db.execSQL(
 404                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 405                    "ADD COLUMN fileParams TEXT"
 406                );
 407                db.execSQL("PRAGMA cheogram.user_version = 2");
 408            }
 409
 410            if(cheogramVersion < 3) {
 411                db.execSQL(
 412                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 413                    "ADD COLUMN payloads TEXT"
 414                );
 415                db.execSQL("PRAGMA cheogram.user_version = 3");
 416            }
 417
 418            if(cheogramVersion < 4) {
 419                db.execSQL(
 420                    "CREATE TABLE cheogram.cids (" +
 421                    "cid TEXT NOT NULL PRIMARY KEY," +
 422                    "path TEXT NOT NULL" +
 423                    ")"
 424                );
 425                db.execSQL("PRAGMA cheogram.user_version = 4");
 426            }
 427
 428            if(cheogramVersion < 5) {
 429                db.execSQL(
 430                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 431                    "ADD COLUMN timeReceived NUMBER"
 432                );
 433                db.execSQL("CREATE INDEX cheogram.message_time_received_index ON " + Message.TABLENAME + " (timeReceived)");
 434                db.execSQL("PRAGMA cheogram.user_version = 5");
 435            }
 436
 437            if(cheogramVersion < 6) {
 438                db.execSQL(
 439                    "CREATE TABLE cheogram.blocked_media (" +
 440                    "cid TEXT NOT NULL PRIMARY KEY" +
 441                    ")"
 442                );
 443                db.execSQL("PRAGMA cheogram.user_version = 6");
 444            }
 445
 446            if(cheogramVersion < 7) {
 447                db.execSQL(
 448                    "ALTER TABLE cheogram.cids " +
 449                    "ADD COLUMN url TEXT"
 450                );
 451                db.execSQL("PRAGMA cheogram.user_version = 7");
 452            }
 453
 454            if(cheogramVersion < 8) {
 455                db.execSQL(
 456                    "CREATE TABLE cheogram.webxdc_updates (" +
 457                    "serial INTEGER PRIMARY KEY AUTOINCREMENT, " +
 458                    Message.CONVERSATION + " TEXT NOT NULL, " +
 459                    "sender TEXT NOT NULL, " +
 460                    "thread TEXT NOT NULL, " +
 461                    "threadParent TEXT, " +
 462                    "info TEXT, " +
 463                    "document TEXT, " +
 464                    "summary TEXT, " +
 465                    "payload TEXT" +
 466                    ")"
 467                );
 468                db.execSQL("CREATE INDEX cheogram.webxdc_index ON webxdc_updates (" + Message.CONVERSATION + ", thread)");
 469                db.execSQL("PRAGMA cheogram.user_version = 8");
 470				}
 471
 472            if(cheogramVersion < 9) {
 473                db.execSQL(
 474                    "ALTER TABLE cheogram.webxdc_updates " +
 475                    "ADD COLUMN message_id TEXT"
 476                );
 477                db.execSQL("CREATE UNIQUE INDEX cheogram.webxdc_message_id_index ON webxdc_updates (" + Message.CONVERSATION + ", message_id)");
 478                db.execSQL("PRAGMA cheogram.user_version = 9");
 479            }
 480
 481            if(cheogramVersion < 10) {
 482                db.execSQL(
 483                    "CREATE TABLE cheogram.muted_participants (" +
 484                    "muc_jid TEXT NOT NULL, " +
 485                    "occupant_id TEXT NOT NULL, " +
 486                    "nick TEXT NOT NULL," +
 487                    "PRIMARY KEY (muc_jid, occupant_id)" +
 488                    ")"
 489                );
 490                db.execSQL(
 491                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 492                    "ADD COLUMN occupant_id TEXT"
 493                );
 494                db.execSQL("PRAGMA cheogram.user_version = 10");
 495            }
 496
 497            if(cheogramVersion < 11) {
 498                if (Build.VERSION.SDK_INT >= 34) {
 499                    db.execSQL(
 500                        "ALTER TABLE cheogram.muted_participants " +
 501                        "DROP COLUMN nick"
 502                    );
 503                } else {
 504                    db.execSQL("DROP TABLE cheogram.muted_participants");
 505                    db.execSQL(
 506                        "CREATE TABLE cheogram.muted_participants (" +
 507                        "muc_jid TEXT NOT NULL, " +
 508                        "occupant_id TEXT NOT NULL, " +
 509                        "PRIMARY KEY (muc_jid, occupant_id)" +
 510                        ")"
 511                    );
 512                }
 513                db.execSQL("PRAGMA cheogram.user_version = 11");
 514            }
 515
 516            if(cheogramVersion < 12) {
 517                db.execSQL(
 518                    "ALTER TABLE cheogram." + Message.TABLENAME + " " +
 519                    "ADD COLUMN notificationDismissed NUMBER DEFAULT 0"
 520                );
 521                db.execSQL("PRAGMA cheogram.user_version = 12");
 522            }
 523
 524            if (cheogramVersion < 13) {
 525                db.execSQL(
 526                        "CREATE TABLE cheogram." + MucOptions.User.CacheEntry.TABLENAME + " (" +
 527                                "conversation_uuid TEXT NOT NULL, " +
 528                                "occupant_id TEXT NOT NULL, " +
 529                                "nick TEXT, " +
 530                                "avatar TEXT, " +
 531                                "PRIMARY KEY (conversation_uuid, occupant_id)" +
 532                                ")"
 533                );
 534                db.execSQL("PRAGMA cheogram.user_version = 13");
 535            }
 536
 537            db.setTransactionSuccessful();
 538        } finally {
 539            db.endTransaction();
 540        }
 541    }
 542
 543    @Override
 544    public void onConfigure(SQLiteDatabase db) {
 545        db.setForeignKeyConstraintsEnabled(true);
 546        db.rawQuery("PRAGMA secure_delete=ON", null).close();
 547        db.execSQL("ATTACH DATABASE ? AS cheogram", new Object[]{context.getDatabasePath("cheogram").getPath()});
 548        cheogramMigrate(db);
 549    }
 550
 551    @Override
 552    public void onCreate(SQLiteDatabase db) {
 553        db.execSQL(
 554                "create table "
 555                        + Account.TABLENAME
 556                        + "("
 557                        + Account.UUID
 558                        + " TEXT PRIMARY KEY,"
 559                        + Account.USERNAME
 560                        + " TEXT,"
 561                        + Account.SERVER
 562                        + " TEXT,"
 563                        + Account.PASSWORD
 564                        + " TEXT,"
 565                        + Account.DISPLAY_NAME
 566                        + " TEXT, "
 567                        + Account.STATUS
 568                        + " TEXT,"
 569                        + Account.STATUS_MESSAGE
 570                        + " TEXT,"
 571                        + Account.ROSTERVERSION
 572                        + " TEXT,"
 573                        + Account.OPTIONS
 574                        + " NUMBER, "
 575                        + Account.AVATAR
 576                        + " TEXT, "
 577                        + Account.KEYS
 578                        + " TEXT, "
 579                        + Account.HOSTNAME
 580                        + " TEXT, "
 581                        + Account.RESOURCE
 582                        + " TEXT,"
 583                        + Account.PINNED_MECHANISM
 584                        + " TEXT,"
 585                        + Account.PINNED_CHANNEL_BINDING
 586                        + " TEXT,"
 587                        + Account.FAST_MECHANISM
 588                        + " TEXT,"
 589                        + Account.FAST_TOKEN
 590                        + " TEXT,"
 591                        + Account.PORT
 592                        + " NUMBER DEFAULT 5222)");
 593        db.execSQL(
 594                "create table "
 595                        + Conversation.TABLENAME
 596                        + " ("
 597                        + Conversation.UUID
 598                        + " TEXT PRIMARY KEY, "
 599                        + Conversation.NAME
 600                        + " TEXT, "
 601                        + Conversation.CONTACT
 602                        + " TEXT, "
 603                        + Conversation.ACCOUNT
 604                        + " TEXT, "
 605                        + Conversation.CONTACTJID
 606                        + " TEXT, "
 607                        + Conversation.CREATED
 608                        + " NUMBER, "
 609                        + Conversation.STATUS
 610                        + " NUMBER, "
 611                        + Conversation.MODE
 612                        + " NUMBER, "
 613                        + Conversation.ATTRIBUTES
 614                        + " TEXT, FOREIGN KEY("
 615                        + Conversation.ACCOUNT
 616                        + ") REFERENCES "
 617                        + Account.TABLENAME
 618                        + "("
 619                        + Account.UUID
 620                        + ") ON DELETE CASCADE);");
 621        db.execSQL(
 622                "create table "
 623                        + Message.TABLENAME
 624                        + "( "
 625                        + Message.UUID
 626                        + " TEXT PRIMARY KEY, "
 627                        + Message.CONVERSATION
 628                        + " TEXT, "
 629                        + Message.TIME_SENT
 630                        + " NUMBER, "
 631                        + Message.COUNTERPART
 632                        + " TEXT, "
 633                        + Message.TRUE_COUNTERPART
 634                        + " TEXT,"
 635                        + Message.BODY
 636                        + " TEXT, "
 637                        + Message.ENCRYPTION
 638                        + " NUMBER, "
 639                        + Message.STATUS
 640                        + " NUMBER,"
 641                        + Message.TYPE
 642                        + " NUMBER, "
 643                        + Message.RELATIVE_FILE_PATH
 644                        + " TEXT, "
 645                        + Message.SERVER_MSG_ID
 646                        + " TEXT, "
 647                        + Message.FINGERPRINT
 648                        + " TEXT, "
 649                        + Message.CARBON
 650                        + " INTEGER, "
 651                        + Message.EDITED
 652                        + " TEXT, "
 653                        + Message.READ
 654                        + " NUMBER DEFAULT 1, "
 655                        + Message.OOB
 656                        + " INTEGER, "
 657                        + Message.ERROR_MESSAGE
 658                        + " TEXT,"
 659                        + Message.READ_BY_MARKERS
 660                        + " TEXT,"
 661                        + Message.MARKABLE
 662                        + " NUMBER DEFAULT 0,"
 663                        + Message.DELETED
 664                        + " NUMBER DEFAULT 0,"
 665                        + Message.BODY_LANGUAGE
 666                        + " TEXT,"
 667                        + Message.OCCUPANT_ID
 668                        + " TEXT,"
 669                        + Message.REACTIONS
 670                        + " TEXT,"
 671                        + Message.REMOTE_MSG_ID
 672                        + " TEXT, FOREIGN KEY("
 673                        + Message.CONVERSATION
 674                        + ") REFERENCES "
 675                        + Conversation.TABLENAME
 676                        + "("
 677                        + Conversation.UUID
 678                        + ") ON DELETE CASCADE);");
 679        db.execSQL(CREATE_MESSAGE_TIME_INDEX);
 680        db.execSQL(CREATE_MESSAGE_CONVERSATION_INDEX);
 681        db.execSQL(CREATE_MESSAGE_DELETED_INDEX);
 682        db.execSQL(CREATE_MESSAGE_RELATIVE_FILE_PATH_INDEX);
 683        db.execSQL(CREATE_MESSAGE_TYPE_INDEX);
 684        db.execSQL(CREATE_CONTACTS_STATEMENT);
 685        db.execSQL(CREATE_SESSIONS_STATEMENT);
 686        db.execSQL(CREATE_PREKEYS_STATEMENT);
 687        db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT);
 688        db.execSQL(CREATE_IDENTITIES_STATEMENT);
 689        db.execSQL(CREATE_PRESENCE_TEMPLATES_STATEMENT);
 690        db.execSQL(CREATE_RESOLVER_RESULTS_TABLE);
 691        db.execSQL(CREATE_MESSAGE_INDEX_TABLE);
 692        db.execSQL(CREATE_MESSAGE_INSERT_TRIGGER);
 693        db.execSQL(CREATE_MESSAGE_UPDATE_TRIGGER);
 694        db.execSQL(CREATE_MESSAGE_DELETE_TRIGGER);
 695        db.execSQL(CREATE_CAPS_CACHE_TABLE);
 696        db.execSQL(CREATE_CAPS_CACHE_INDEX_CAPS);
 697        db.execSQL(CREATE_CAPS_CACHE_INDEX_CAPS2);
 698    }
 699
 700    @Override
 701    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 702        if (oldVersion < 2 && newVersion >= 2) {
 703            db.execSQL(
 704                    "update "
 705                            + Account.TABLENAME
 706                            + " set "
 707                            + Account.OPTIONS
 708                            + " = "
 709                            + Account.OPTIONS
 710                            + " | 8");
 711        }
 712        if (oldVersion < 3 && newVersion >= 3) {
 713            db.execSQL(
 714                    "ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.TYPE + " NUMBER");
 715        }
 716        if (oldVersion < 5 && newVersion >= 5) {
 717            db.execSQL("DROP TABLE " + Contact.TABLENAME);
 718            db.execSQL(CREATE_CONTACTS_STATEMENT);
 719            db.execSQL("UPDATE " + Account.TABLENAME + " SET " + Account.ROSTERVERSION + " = NULL");
 720        }
 721        if (oldVersion < 6 && newVersion >= 6) {
 722            db.execSQL(
 723                    "ALTER TABLE "
 724                            + Message.TABLENAME
 725                            + " ADD COLUMN "
 726                            + Message.TRUE_COUNTERPART
 727                            + " TEXT");
 728        }
 729        if (oldVersion < 7 && newVersion >= 7) {
 730            db.execSQL(
 731                    "ALTER TABLE "
 732                            + Message.TABLENAME
 733                            + " ADD COLUMN "
 734                            + Message.REMOTE_MSG_ID
 735                            + " TEXT");
 736            db.execSQL(
 737                    "ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN " + Contact.AVATAR + " TEXT");
 738            db.execSQL(
 739                    "ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.AVATAR + " TEXT");
 740        }
 741        if (oldVersion < 8 && newVersion >= 8) {
 742            db.execSQL(
 743                    "ALTER TABLE "
 744                            + Conversation.TABLENAME
 745                            + " ADD COLUMN "
 746                            + Conversation.ATTRIBUTES
 747                            + " TEXT");
 748        }
 749        if (oldVersion < 9 && newVersion >= 9) {
 750            db.execSQL(
 751                    "ALTER TABLE "
 752                            + Contact.TABLENAME
 753                            + " ADD COLUMN "
 754                            + Contact.LAST_TIME
 755                            + " NUMBER");
 756            db.execSQL(
 757                    "ALTER TABLE "
 758                            + Contact.TABLENAME
 759                            + " ADD COLUMN "
 760                            + Contact.LAST_PRESENCE
 761                            + " TEXT");
 762        }
 763        if (oldVersion < 10 && newVersion >= 10) {
 764            db.execSQL(
 765                    "ALTER TABLE "
 766                            + Message.TABLENAME
 767                            + " ADD COLUMN "
 768                            + Message.RELATIVE_FILE_PATH
 769                            + " TEXT");
 770        }
 771        if (oldVersion < 11 && newVersion >= 11) {
 772            db.execSQL(
 773                    "ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN " + Contact.GROUPS + " TEXT");
 774            db.execSQL("delete from " + Contact.TABLENAME);
 775            db.execSQL("update " + Account.TABLENAME + " set " + Account.ROSTERVERSION + " = NULL");
 776        }
 777        if (oldVersion < 12 && newVersion >= 12) {
 778            db.execSQL(
 779                    "ALTER TABLE "
 780                            + Message.TABLENAME
 781                            + " ADD COLUMN "
 782                            + Message.SERVER_MSG_ID
 783                            + " TEXT");
 784        }
 785        if (oldVersion < 13 && newVersion >= 13) {
 786            db.execSQL("delete from " + Contact.TABLENAME);
 787            db.execSQL("update " + Account.TABLENAME + " set " + Account.ROSTERVERSION + " = NULL");
 788        }
 789        if (oldVersion < 14 && newVersion >= 14) {
 790            canonicalizeJids(db);
 791        }
 792        if (oldVersion < 15 && newVersion >= 15) {
 793            recreateAxolotlDb(db);
 794            db.execSQL(
 795                    "ALTER TABLE "
 796                            + Message.TABLENAME
 797                            + " ADD COLUMN "
 798                            + Message.FINGERPRINT
 799                            + " TEXT");
 800        }
 801        if (oldVersion < 16 && newVersion >= 16) {
 802            db.execSQL(
 803                    "ALTER TABLE "
 804                            + Message.TABLENAME
 805                            + " ADD COLUMN "
 806                            + Message.CARBON
 807                            + " INTEGER");
 808        }
 809        if (oldVersion < 19 && newVersion >= 19) {
 810            db.execSQL(
 811                    "ALTER TABLE "
 812                            + Account.TABLENAME
 813                            + " ADD COLUMN "
 814                            + Account.DISPLAY_NAME
 815                            + " TEXT");
 816        }
 817        if (oldVersion < 20 && newVersion >= 20) {
 818            db.execSQL(
 819                    "ALTER TABLE "
 820                            + Account.TABLENAME
 821                            + " ADD COLUMN "
 822                            + Account.HOSTNAME
 823                            + " TEXT");
 824            db.execSQL(
 825                    "ALTER TABLE "
 826                            + Account.TABLENAME
 827                            + " ADD COLUMN "
 828                            + Account.PORT
 829                            + " NUMBER DEFAULT 5222");
 830        }
 831        if (oldVersion < 26 && newVersion >= 26) {
 832            db.execSQL(
 833                    "ALTER TABLE " + Account.TABLENAME + " ADD COLUMN " + Account.STATUS + " TEXT");
 834            db.execSQL(
 835                    "ALTER TABLE "
 836                            + Account.TABLENAME
 837                            + " ADD COLUMN "
 838                            + Account.STATUS_MESSAGE
 839                            + " TEXT");
 840        }
 841        if (oldVersion < 40 && newVersion >= 40) {
 842            db.execSQL(
 843                    "ALTER TABLE "
 844                            + Account.TABLENAME
 845                            + " ADD COLUMN "
 846                            + Account.RESOURCE
 847                            + " TEXT");
 848        }
 849        /* Any migrations that alter the Account table need to happen BEFORE this migration, as it
 850         * depends on account de-serialization.
 851         */
 852        if (oldVersion < 17 && newVersion >= 17 && newVersion < 31) {
 853            List<Account> accounts = getAccounts(db);
 854            for (Account account : accounts) {
 855                String ownDeviceIdString =
 856                        account.getKey(SQLiteAxolotlStore.JSONKEY_REGISTRATION_ID);
 857                if (ownDeviceIdString == null) {
 858                    continue;
 859                }
 860                int ownDeviceId = Integer.valueOf(ownDeviceIdString);
 861                SignalProtocolAddress ownAddress =
 862                        new SignalProtocolAddress(
 863                                account.getJid().asBareJid().toString(), ownDeviceId);
 864                deleteSession(db, account, ownAddress);
 865                IdentityKeyPair identityKeyPair = loadOwnIdentityKeyPair(db, account);
 866                if (identityKeyPair != null) {
 867                    String[] selectionArgs = {
 868                        account.getUuid(),
 869                        CryptoHelper.bytesToHex(identityKeyPair.getPublicKey().serialize())
 870                    };
 871                    ContentValues values = new ContentValues();
 872                    values.put(SQLiteAxolotlStore.TRUSTED, 2);
 873                    db.update(
 874                            SQLiteAxolotlStore.IDENTITIES_TABLENAME,
 875                            values,
 876                            SQLiteAxolotlStore.ACCOUNT
 877                                    + " = ? AND "
 878                                    + SQLiteAxolotlStore.FINGERPRINT
 879                                    + " = ? ",
 880                            selectionArgs);
 881                } else {
 882                    Log.d(
 883                            Config.LOGTAG,
 884                            account.getJid().asBareJid()
 885                                    + ": could not load own identity key pair");
 886                }
 887            }
 888        }
 889        if (oldVersion < 18 && newVersion >= 18) {
 890            db.execSQL(
 891                    "ALTER TABLE "
 892                            + Message.TABLENAME
 893                            + " ADD COLUMN "
 894                            + Message.READ
 895                            + " NUMBER DEFAULT 1");
 896        }
 897
 898        if (oldVersion < 21 && newVersion >= 21) {
 899            List<Account> accounts = getAccounts(db);
 900            for (Account account : accounts) {
 901                account.unsetPgpSignature();
 902                db.update(
 903                        Account.TABLENAME,
 904                        account.getContentValues(),
 905                        Account.UUID + "=?",
 906                        new String[] {account.getUuid()});
 907            }
 908        }
 909
 910        if (oldVersion >= 15 && oldVersion < 22 && newVersion >= 22) {
 911            db.execSQL(
 912                    "ALTER TABLE "
 913                            + SQLiteAxolotlStore.IDENTITIES_TABLENAME
 914                            + " ADD COLUMN "
 915                            + SQLiteAxolotlStore.CERTIFICATE);
 916        }
 917
 918        if (oldVersion < 24 && newVersion >= 24) {
 919            db.execSQL(
 920                    "ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.EDITED + " TEXT");
 921        }
 922
 923        if (oldVersion < 25 && newVersion >= 25) {
 924            db.execSQL(
 925                    "ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.OOB + " INTEGER");
 926        }
 927
 928        if (oldVersion < 26 && newVersion >= 26) {
 929            db.execSQL(CREATE_PRESENCE_TEMPLATES_STATEMENT);
 930        }
 931
 932        if (oldVersion < 28 && newVersion >= 28) {
 933            canonicalizeJids(db);
 934        }
 935
 936        if (oldVersion < 29 && newVersion >= 29) {
 937            db.execSQL(
 938                    "ALTER TABLE "
 939                            + Message.TABLENAME
 940                            + " ADD COLUMN "
 941                            + Message.ERROR_MESSAGE
 942                            + " TEXT");
 943        }
 944        if (oldVersion >= 15 && oldVersion < 31 && newVersion >= 31) {
 945            db.execSQL(
 946                    "ALTER TABLE "
 947                            + SQLiteAxolotlStore.IDENTITIES_TABLENAME
 948                            + " ADD COLUMN "
 949                            + SQLiteAxolotlStore.TRUST
 950                            + " TEXT");
 951            db.execSQL(
 952                    "ALTER TABLE "
 953                            + SQLiteAxolotlStore.IDENTITIES_TABLENAME
 954                            + " ADD COLUMN "
 955                            + SQLiteAxolotlStore.ACTIVE
 956                            + " NUMBER");
 957            HashMap<Integer, ContentValues> migration = new HashMap<>();
 958            migration.put(
 959                    0, createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, true));
 960            migration.put(
 961                    1, createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, true));
 962            migration.put(
 963                    2,
 964                    createFingerprintStatusContentValues(FingerprintStatus.Trust.UNTRUSTED, true));
 965            migration.put(
 966                    3,
 967                    createFingerprintStatusContentValues(
 968                            FingerprintStatus.Trust.COMPROMISED, false));
 969            migration.put(
 970                    4,
 971                    createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, false));
 972            migration.put(
 973                    5,
 974                    createFingerprintStatusContentValues(FingerprintStatus.Trust.TRUSTED, false));
 975            migration.put(
 976                    6,
 977                    createFingerprintStatusContentValues(FingerprintStatus.Trust.UNTRUSTED, false));
 978            migration.put(
 979                    7,
 980                    createFingerprintStatusContentValues(
 981                            FingerprintStatus.Trust.VERIFIED_X509, true));
 982            migration.put(
 983                    8,
 984                    createFingerprintStatusContentValues(
 985                            FingerprintStatus.Trust.VERIFIED_X509, false));
 986            for (Map.Entry<Integer, ContentValues> entry : migration.entrySet()) {
 987                String whereClause = SQLiteAxolotlStore.TRUSTED + "=?";
 988                String[] where = {String.valueOf(entry.getKey())};
 989                db.update(
 990                        SQLiteAxolotlStore.IDENTITIES_TABLENAME,
 991                        entry.getValue(),
 992                        whereClause,
 993                        where);
 994            }
 995        }
 996        if (oldVersion >= 15 && oldVersion < 32 && newVersion >= 32) {
 997            db.execSQL(
 998                    "ALTER TABLE "
 999                            + SQLiteAxolotlStore.IDENTITIES_TABLENAME
1000                            + " ADD COLUMN "
1001                            + SQLiteAxolotlStore.LAST_ACTIVATION
1002                            + " NUMBER");
1003            ContentValues defaults = new ContentValues();
1004            defaults.put(SQLiteAxolotlStore.LAST_ACTIVATION, System.currentTimeMillis());
1005            db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, defaults, null, null);
1006        }
1007        if (oldVersion >= 15 && oldVersion < 33 && newVersion >= 33) {
1008            String whereClause = SQLiteAxolotlStore.OWN + "=1";
1009            db.update(
1010                    SQLiteAxolotlStore.IDENTITIES_TABLENAME,
1011                    createFingerprintStatusContentValues(FingerprintStatus.Trust.VERIFIED, true),
1012                    whereClause,
1013                    null);
1014        }
1015
1016        if (oldVersion < 34 && newVersion >= 34) {
1017            db.execSQL(CREATE_MESSAGE_TIME_INDEX);
1018
1019            final File oldPicturesDirectory =
1020                    new File(
1021                            Environment.getExternalStoragePublicDirectory(
1022                                            Environment.DIRECTORY_PICTURES)
1023                                    + "/Conversations/");
1024            final File oldFilesDirectory =
1025                    new File(Environment.getExternalStorageDirectory() + "/Conversations/");
1026            final File newFilesDirectory =
1027                    new File(
1028                            Environment.getExternalStorageDirectory()
1029                                    + "/Conversations/Media/Conversations Files/");
1030            final File newVideosDirectory =
1031                    new File(
1032                            Environment.getExternalStorageDirectory()
1033                                    + "/Conversations/Media/Conversations Videos/");
1034            if (oldPicturesDirectory.exists() && oldPicturesDirectory.isDirectory()) {
1035                final File newPicturesDirectory =
1036                        new File(
1037                                Environment.getExternalStorageDirectory()
1038                                        + "/Conversations/Media/Conversations Images/");
1039                newPicturesDirectory.getParentFile().mkdirs();
1040                if (oldPicturesDirectory.renameTo(newPicturesDirectory)) {
1041                    Log.d(
1042                            Config.LOGTAG,
1043                            "moved "
1044                                    + oldPicturesDirectory.getAbsolutePath()
1045                                    + " to "
1046                                    + newPicturesDirectory.getAbsolutePath());
1047                }
1048            }
1049            if (oldFilesDirectory.exists() && oldFilesDirectory.isDirectory()) {
1050                newFilesDirectory.mkdirs();
1051                newVideosDirectory.mkdirs();
1052                final File[] files = oldFilesDirectory.listFiles();
1053                if (files == null) {
1054                    return;
1055                }
1056                for (File file : files) {
1057                    if (file.getName().equals(".nomedia")) {
1058                        if (file.delete()) {
1059                            Log.d(
1060                                    Config.LOGTAG,
1061                                    "deleted nomedia file in "
1062                                            + oldFilesDirectory.getAbsolutePath());
1063                        }
1064                    } else if (file.isFile()) {
1065                        final String name = file.getName();
1066                        boolean isVideo = false;
1067                        int start = name.lastIndexOf('.') + 1;
1068                        if (start < name.length()) {
1069                            String mime =
1070                                    MimeUtils.guessMimeTypeFromExtension(name.substring(start));
1071                            isVideo = mime != null && mime.startsWith("video/");
1072                        }
1073                        File dst =
1074                                new File(
1075                                        (isVideo ? newVideosDirectory : newFilesDirectory)
1076                                                        .getAbsolutePath()
1077                                                + "/"
1078                                                + file.getName());
1079                        if (file.renameTo(dst)) {
1080                            Log.d(Config.LOGTAG, "moved " + file + " to " + dst);
1081                        }
1082                    }
1083                }
1084            }
1085        }
1086        if (oldVersion < 35 && newVersion >= 35) {
1087            db.execSQL(CREATE_MESSAGE_CONVERSATION_INDEX);
1088        }
1089        if (oldVersion < 36 && newVersion >= 36) {
1090            List<Account> accounts = getAccounts(db);
1091            for (Account account : accounts) {
1092                account.setOption(Account.OPTION_REQUIRES_ACCESS_MODE_CHANGE, true);
1093                account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, false);
1094                db.update(
1095                        Account.TABLENAME,
1096                        account.getContentValues(),
1097                        Account.UUID + "=?",
1098                        new String[] {account.getUuid()});
1099            }
1100        }
1101
1102        if (oldVersion < 37 && newVersion >= 37) {
1103            db.execSQL(
1104                    "ALTER TABLE "
1105                            + Message.TABLENAME
1106                            + " ADD COLUMN "
1107                            + Message.READ_BY_MARKERS
1108                            + " TEXT");
1109        }
1110
1111        if (oldVersion < 38 && newVersion >= 38) {
1112            db.execSQL(
1113                    "ALTER TABLE "
1114                            + Message.TABLENAME
1115                            + " ADD COLUMN "
1116                            + Message.MARKABLE
1117                            + " NUMBER DEFAULT 0");
1118        }
1119
1120        if (oldVersion < 39 && newVersion >= 39) {
1121            db.execSQL(CREATE_RESOLVER_RESULTS_TABLE);
1122        }
1123
1124        if (QuickConversationsService.isQuicksy() && oldVersion < 43 && newVersion >= 43) {
1125            List<Account> accounts = getAccounts(db);
1126            for (Account account : accounts) {
1127                account.setOption(Account.OPTION_MAGIC_CREATE, true);
1128                db.update(
1129                        Account.TABLENAME,
1130                        account.getContentValues(),
1131                        Account.UUID + "=?",
1132                        new String[] {account.getUuid()});
1133            }
1134        }
1135
1136        if (oldVersion < 44 && newVersion >= 44) {
1137            db.execSQL(
1138                    "ALTER TABLE "
1139                            + Message.TABLENAME
1140                            + " ADD COLUMN "
1141                            + Message.DELETED
1142                            + " NUMBER DEFAULT 0");
1143            db.execSQL(CREATE_MESSAGE_DELETED_INDEX);
1144            db.execSQL(CREATE_MESSAGE_RELATIVE_FILE_PATH_INDEX);
1145            db.execSQL(CREATE_MESSAGE_TYPE_INDEX);
1146        }
1147
1148        if (oldVersion < 45 && newVersion >= 45) {
1149            db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.BODY_LANGUAGE);
1150        }
1151
1152        if (oldVersion < 46 && newVersion >= 46) {
1153            final long start = SystemClock.elapsedRealtime();
1154            db.rawQuery("PRAGMA secure_delete = FALSE", null).close();
1155            db.execSQL("update " + Message.TABLENAME + " set " + Message.EDITED + "=NULL");
1156            db.rawQuery("PRAGMA secure_delete=ON", null).close();
1157            final long diff = SystemClock.elapsedRealtime() - start;
1158            Log.d(Config.LOGTAG, "deleted old edit information in " + diff + "ms");
1159        }
1160        if (oldVersion < 47 && newVersion >= 47) {
1161            db.execSQL(
1162                    "ALTER TABLE "
1163                            + Contact.TABLENAME
1164                            + " ADD COLUMN "
1165                            + Contact.PRESENCE_NAME
1166                            + " TEXT");
1167        }
1168        if (oldVersion < 48 && newVersion >= 48) {
1169            db.execSQL(
1170                    "ALTER TABLE "
1171                            + Contact.TABLENAME
1172                            + " ADD COLUMN "
1173                            + Contact.RTP_CAPABILITY
1174                            + " TEXT");
1175        }
1176        if (oldVersion < 49 && newVersion >= 49) {
1177            db.beginTransaction();
1178            db.execSQL("DROP TRIGGER IF EXISTS after_message_insert;");
1179            db.execSQL("DROP TRIGGER IF EXISTS after_message_update;");
1180            db.execSQL("DROP TRIGGER IF EXISTS after_message_delete;");
1181            db.execSQL("DROP TABLE IF EXISTS messages_index;");
1182            // a hack that should not be necessary, but
1183            // there was at least one occurence when SQLite failed at this
1184            db.execSQL("DROP TABLE IF EXISTS messages_index_docsize;");
1185            db.execSQL("DROP TABLE IF EXISTS messages_index_segdir;");
1186            db.execSQL("DROP TABLE IF EXISTS messages_index_segments;");
1187            db.execSQL("DROP TABLE IF EXISTS messages_index_stat;");
1188            db.execSQL(CREATE_MESSAGE_INDEX_TABLE);
1189            db.execSQL(CREATE_MESSAGE_INSERT_TRIGGER);
1190            db.execSQL(CREATE_MESSAGE_UPDATE_TRIGGER);
1191            db.execSQL(CREATE_MESSAGE_DELETE_TRIGGER);
1192            db.setTransactionSuccessful();
1193            db.endTransaction();
1194            requiresMessageIndexRebuild = true;
1195        }
1196        if (oldVersion < 50 && newVersion >= 50) {
1197            db.execSQL(
1198                    "ALTER TABLE "
1199                            + Account.TABLENAME
1200                            + " ADD COLUMN "
1201                            + Account.PINNED_MECHANISM
1202                            + " TEXT");
1203            db.execSQL(
1204                    "ALTER TABLE "
1205                            + Account.TABLENAME
1206                            + " ADD COLUMN "
1207                            + Account.PINNED_CHANNEL_BINDING
1208                            + " TEXT");
1209        }
1210        if (oldVersion < 51 && newVersion >= 51) {
1211            db.execSQL(
1212                    "ALTER TABLE "
1213                            + Account.TABLENAME
1214                            + " ADD COLUMN "
1215                            + Account.FAST_MECHANISM
1216                            + " TEXT");
1217            db.execSQL(
1218                    "ALTER TABLE "
1219                            + Account.TABLENAME
1220                            + " ADD COLUMN "
1221                            + Account.FAST_TOKEN
1222                            + " TEXT");
1223        }
1224        if (oldVersion < 52 && newVersion >= 52) {
1225            db.execSQL(
1226                    "ALTER TABLE "
1227                            + Message.TABLENAME
1228                            + " ADD COLUMN "
1229                            + Message.OCCUPANT_ID
1230                            + " TEXT");
1231            db.execSQL(
1232                    "ALTER TABLE "
1233                            + Message.TABLENAME
1234                            + " ADD COLUMN "
1235                            + Message.REACTIONS
1236                            + " TEXT");
1237        }
1238        if (oldVersion < 53 && newVersion >= 53) {
1239            try (final Cursor cursor =
1240                    db.query(
1241                            Account.TABLENAME,
1242                            new String[] {Account.UUID, Account.USERNAME},
1243                            null,
1244                            null,
1245                            null,
1246                            null,
1247                            null)) {
1248                while (cursor != null && cursor.moveToNext()) {
1249                    final var uuid = cursor.getString(0);
1250                    final var username = cursor.getString(1);
1251                    final Localpart localpart;
1252                    try {
1253                        localpart = Localpart.fromUnescaped(username);
1254                    } catch (final XmppStringprepException e) {
1255                        Log.d(Config.LOGTAG, "unable to parse jid");
1256                        continue;
1257                    }
1258                    final var contentValues = new ContentValues();
1259                    contentValues.putNull(Account.ROSTERVERSION);
1260                    contentValues.put(Account.USERNAME, localpart.toString());
1261                    db.update(
1262                            Account.TABLENAME,
1263                            contentValues,
1264                            Account.UUID + "=?",
1265                            new String[] {uuid});
1266                }
1267            }
1268        }
1269        if (oldVersion < 54 && newVersion >= 54) {
1270            db.execSQL("DROP TABLE discovery_results");
1271            db.execSQL(CREATE_CAPS_CACHE_TABLE);
1272            db.execSQL(CREATE_CAPS_CACHE_INDEX_CAPS);
1273            db.execSQL(CREATE_CAPS_CACHE_INDEX_CAPS2);
1274        }
1275    }
1276
1277    private void canonicalizeJids(SQLiteDatabase db) {
1278        // migrate db to new, canonicalized JID domainpart representation
1279
1280        // Conversation table
1281        Cursor cursor = db.rawQuery("select * from " + Conversation.TABLENAME, new String[0]);
1282        while (cursor.moveToNext()) {
1283            String newJid;
1284            try {
1285                newJid =
1286                        Jid.of(
1287                                        cursor.getString(
1288                                                cursor.getColumnIndexOrThrow(
1289                                                        Conversation.CONTACTJID)))
1290                                .toString();
1291            } catch (final IllegalArgumentException e) {
1292                Log.e(
1293                        Config.LOGTAG,
1294                        "Failed to migrate Conversation CONTACTJID "
1295                                + cursor.getString(
1296                                        cursor.getColumnIndexOrThrow(Conversation.CONTACTJID))
1297                                + ". Skipping...",
1298                        e);
1299                continue;
1300            }
1301
1302            final String[] updateArgs = {
1303                newJid, cursor.getString(cursor.getColumnIndexOrThrow(Conversation.UUID)),
1304            };
1305            db.execSQL(
1306                    "update "
1307                            + Conversation.TABLENAME
1308                            + " set "
1309                            + Conversation.CONTACTJID
1310                            + " = ? "
1311                            + " where "
1312                            + Conversation.UUID
1313                            + " = ?",
1314                    updateArgs);
1315        }
1316        cursor.close();
1317
1318        // Contact table
1319        cursor = db.rawQuery("select * from " + Contact.TABLENAME, new String[0]);
1320        while (cursor.moveToNext()) {
1321            String newJid;
1322            try {
1323                newJid =
1324                        Jid.of(cursor.getString(cursor.getColumnIndexOrThrow(Contact.JID)))
1325                                .toString();
1326            } catch (final IllegalArgumentException e) {
1327                Log.e(
1328                        Config.LOGTAG,
1329                        "Failed to migrate Contact JID "
1330                                + cursor.getString(cursor.getColumnIndexOrThrow(Contact.JID))
1331                                + ":  Skipping...",
1332                        e);
1333                continue;
1334            }
1335
1336            final String[] updateArgs = {
1337                newJid,
1338                cursor.getString(cursor.getColumnIndexOrThrow(Contact.ACCOUNT)),
1339                cursor.getString(cursor.getColumnIndexOrThrow(Contact.JID)),
1340            };
1341            db.execSQL(
1342                    "update "
1343                            + Contact.TABLENAME
1344                            + " set "
1345                            + Contact.JID
1346                            + " = ? "
1347                            + " where "
1348                            + Contact.ACCOUNT
1349                            + " = ? "
1350                            + " AND "
1351                            + Contact.JID
1352                            + " = ?",
1353                    updateArgs);
1354        }
1355        cursor.close();
1356
1357        // Account table
1358        cursor = db.rawQuery("select * from " + Account.TABLENAME, new String[0]);
1359        while (cursor.moveToNext()) {
1360            String newServer;
1361            try {
1362                newServer =
1363                        Jid.of(
1364                                        cursor.getString(
1365                                                cursor.getColumnIndexOrThrow(Account.USERNAME)),
1366                                        cursor.getString(
1367                                                cursor.getColumnIndexOrThrow(Account.SERVER)),
1368                                        null)
1369                                .getDomain()
1370                                .toString();
1371            } catch (final IllegalArgumentException e) {
1372                Log.e(
1373                        Config.LOGTAG,
1374                        "Failed to migrate Account SERVER "
1375                                + cursor.getString(cursor.getColumnIndexOrThrow(Account.SERVER))
1376                                + ". Skipping...",
1377                        e);
1378                continue;
1379            }
1380
1381            String[] updateArgs = {
1382                newServer, cursor.getString(cursor.getColumnIndexOrThrow(Account.UUID)),
1383            };
1384            db.execSQL(
1385                    "update "
1386                            + Account.TABLENAME
1387                            + " set "
1388                            + Account.SERVER
1389                            + " = ? "
1390                            + " where "
1391                            + Account.UUID
1392                            + " = ?",
1393                    updateArgs);
1394        }
1395        cursor.close();
1396    }
1397
1398    public DownloadableFile getFileForCid(Cid cid) {
1399        if (cid == null) return null;
1400
1401        SQLiteDatabase db = this.getReadableDatabase();
1402        Cursor cursor = db.query("cheogram.cids", new String[]{"path"}, "cid=?", new String[]{cid.toString()}, null, null, null);
1403        DownloadableFile f = null;
1404        if (cursor.moveToNext()) {
1405            f = new DownloadableFile(cursor.getString(0));
1406        }
1407        cursor.close();
1408        return f;
1409    }
1410
1411    public String getUrlForCid(Cid cid) {
1412        SQLiteDatabase db = this.getReadableDatabase();
1413        Cursor cursor = db.query("cheogram.cids", new String[]{"url"}, "cid=?", new String[]{cid.toString()}, null, null, null);
1414        String url = null;
1415        if (cursor.moveToNext()) {
1416            url = cursor.getString(0);
1417        }
1418        cursor.close();
1419        return url;
1420    }
1421
1422    public void saveCid(Cid cid, File file) {
1423        saveCid(cid, file, null);
1424    }
1425
1426    public void saveCid(Cid cid, File file, String url) {
1427        SQLiteDatabase db = this.getWritableDatabase();
1428        ContentValues cv = new ContentValues();
1429        cv.put("cid", cid.toString());
1430        if (file != null) cv.put("path", file.getAbsolutePath());
1431        if (url != null) cv.put("url", url);
1432        if (db.update("cheogram.cids", cv, "cid=?", new String[]{cid.toString()}) < 1) {
1433            db.insertWithOnConflict("cheogram.cids", null, cv, SQLiteDatabase.CONFLICT_REPLACE);
1434        }
1435    }
1436
1437    public void blockMedia(Cid cid) {
1438        SQLiteDatabase db = this.getWritableDatabase();
1439        ContentValues cv = new ContentValues();
1440        cv.put("cid", cid.toString());
1441        db.insertWithOnConflict("cheogram.blocked_media", null, cv, SQLiteDatabase.CONFLICT_REPLACE);
1442    }
1443
1444    public boolean isBlockedMedia(Cid cid) {
1445        SQLiteDatabase db = this.getReadableDatabase();
1446        Cursor cursor = db.query("cheogram.blocked_media", new String[]{"count(*)"}, "cid=?", new String[]{cid.toString()}, null, null, null);
1447        boolean is = false;
1448        if (cursor.moveToNext()) {
1449            is = cursor.getInt(0) > 0;
1450        }
1451        cursor.close();
1452        return is;
1453    }
1454
1455    public void clearBlockedMedia() {
1456        SQLiteDatabase db = this.getWritableDatabase();
1457        db.execSQL("DELETE FROM cheogram.blocked_media");
1458    }
1459
1460    public Multimap<String, String> loadMutedMucUsers() {
1461        Multimap<String, String> result = HashMultimap.create();
1462        SQLiteDatabase db = this.getReadableDatabase();
1463        Cursor cursor = db.query("cheogram.muted_participants", new String[]{"muc_jid", "occupant_id"}, null, null, null, null, null);
1464        while (cursor.moveToNext()) {
1465            result.put(cursor.getString(0), cursor.getString(1));
1466        }
1467        cursor.close();
1468        return result;
1469    }
1470
1471    public boolean muteMucUser(MucOptions.User user) {
1472        if (user.getMuc() == null || user.getOccupantId() == null) return false;
1473
1474        SQLiteDatabase db = this.getWritableDatabase();
1475        ContentValues cv = new ContentValues();
1476        cv.put("muc_jid", user.getMuc().toString());
1477        cv.put("occupant_id", user.getOccupantId());
1478        db.insertWithOnConflict("cheogram.muted_participants", null, cv, SQLiteDatabase.CONFLICT_REPLACE);
1479
1480        return true;
1481    }
1482
1483    public boolean unmuteMucUser(MucOptions.User user) {
1484        if (user.getMuc() == null || user.getOccupantId() == null) return false;
1485
1486        SQLiteDatabase db = this.getWritableDatabase();
1487        String where = "muc_jid=? AND occupant_id=?";
1488        String[] whereArgs = {user.getMuc().toString(), user.getOccupantId()};
1489        db.delete("cheogram.muted_participants", where, whereArgs);
1490
1491        return true;
1492    }
1493
1494    public void insertWebxdcUpdate(final WebxdcUpdate update) {
1495        SQLiteDatabase db = this.getWritableDatabase();
1496        db.insertWithOnConflict("cheogram.webxdc_updates", null, update.getContentValues(), SQLiteDatabase.CONFLICT_IGNORE);
1497    }
1498
1499    public WebxdcUpdate findLastWebxdcUpdate(Message message) {
1500        if (message.getThread() == null) {
1501            Log.w(Config.LOGTAG, "WebXDC message with no thread!");
1502            return null;
1503        }
1504
1505        SQLiteDatabase db = this.getReadableDatabase();
1506        String[] selectionArgs = {message.getConversation().getUuid(), message.getThread().getContent()};
1507        Cursor cursor = db.query("cheogram.webxdc_updates", null,
1508                Message.CONVERSATION + "=? AND thread=?",
1509                selectionArgs, null, null, "serial ASC");
1510        WebxdcUpdate update = null;
1511        if (cursor.moveToLast()) {
1512            update = new WebxdcUpdate(cursor, cursor.getLong(cursor.getColumnIndex("serial")));
1513        }
1514        cursor.close();
1515        return update;
1516    }
1517
1518    public List<WebxdcUpdate> findWebxdcUpdates(Message message, long serial) {
1519        SQLiteDatabase db = this.getReadableDatabase();
1520        String[] selectionArgs = {message.getConversation().getUuid(), message.getThread().getContent(), String.valueOf(serial)};
1521        Cursor cursor = db.query("cheogram.webxdc_updates", null,
1522                Message.CONVERSATION + "=? AND thread=? AND serial>?",
1523                selectionArgs, null, null, "serial ASC");
1524        long maxSerial = 0;
1525        if (cursor.moveToLast()) {
1526            maxSerial = cursor.getLong(cursor.getColumnIndex("serial"));
1527        }
1528        cursor.moveToFirst();
1529        cursor.moveToPrevious();
1530
1531        List<WebxdcUpdate> updates = new ArrayList<>();
1532        while (cursor.moveToNext()) {
1533            updates.add(new WebxdcUpdate(cursor, maxSerial));
1534        }
1535        cursor.close();
1536        return updates;
1537    }
1538
1539    public void createConversation(Conversation conversation) {
1540        SQLiteDatabase db = this.getWritableDatabase();
1541        db.insert(Conversation.TABLENAME, null, conversation.getContentValues());
1542    }
1543
1544    public void createMessage(Message message) {
1545        SQLiteDatabase db = this.getWritableDatabase();
1546        db.insert(Message.TABLENAME, null, message.getContentValues());
1547        db.insert("cheogram." + Message.TABLENAME, null, message.getCheogramContentValues());
1548    }
1549
1550    public void createAccount(Account account) {
1551        SQLiteDatabase db = this.getWritableDatabase();
1552        db.insert(Account.TABLENAME, null, account.getContentValues());
1553    }
1554
1555    public void saveResolverResult(String domain, Resolver.Result result) {
1556        SQLiteDatabase db = this.getWritableDatabase();
1557        ContentValues contentValues = result.toContentValues();
1558        contentValues.put(Resolver.Result.DOMAIN, domain);
1559        db.insert(RESOLVER_RESULTS_TABLENAME, null, contentValues);
1560    }
1561
1562    public synchronized Resolver.Result findResolverResult(String domain) {
1563        SQLiteDatabase db = this.getReadableDatabase();
1564        String where = Resolver.Result.DOMAIN + "=?";
1565        String[] whereArgs = {domain};
1566        final Cursor cursor =
1567                db.query(RESOLVER_RESULTS_TABLENAME, null, where, whereArgs, null, null, null);
1568        Resolver.Result result = null;
1569        if (cursor != null) {
1570            try {
1571                if (cursor.moveToFirst()) {
1572                    result = Resolver.Result.fromCursor(cursor);
1573                }
1574            } catch (Exception e) {
1575                Log.d(
1576                        Config.LOGTAG,
1577                        "unable to find cached resolver result in database " + e.getMessage());
1578                return null;
1579            } finally {
1580                cursor.close();
1581            }
1582        }
1583        return result;
1584    }
1585
1586    public void insertPresenceTemplate(PresenceTemplate template) {
1587        SQLiteDatabase db = this.getWritableDatabase();
1588        String whereToDelete = PresenceTemplate.MESSAGE + "=?";
1589        String[] whereToDeleteArgs = {template.getStatusMessage()};
1590        db.delete(PresenceTemplate.TABELNAME, whereToDelete, whereToDeleteArgs);
1591        db.delete(
1592                PresenceTemplate.TABELNAME,
1593                PresenceTemplate.UUID
1594                        + " not in (select "
1595                        + PresenceTemplate.UUID
1596                        + " from "
1597                        + PresenceTemplate.TABELNAME
1598                        + " order by "
1599                        + PresenceTemplate.LAST_USED
1600                        + " desc limit 9)",
1601                null);
1602        db.insert(PresenceTemplate.TABELNAME, null, template.getContentValues());
1603    }
1604
1605    public List<PresenceTemplate> getPresenceTemplates() {
1606        ArrayList<PresenceTemplate> templates = new ArrayList<>();
1607        SQLiteDatabase db = this.getReadableDatabase();
1608        Cursor cursor =
1609                db.query(
1610                        PresenceTemplate.TABELNAME,
1611                        null,
1612                        null,
1613                        null,
1614                        null,
1615                        null,
1616                        PresenceTemplate.LAST_USED + " desc");
1617        while (cursor.moveToNext()) {
1618            templates.add(PresenceTemplate.fromCursor(cursor));
1619        }
1620        cursor.close();
1621        return templates;
1622    }
1623
1624    public HashMap<MucOptions.User.OccupantId, MucOptions.User.CacheEntry>
1625    getMucUsersForConversation(Conversation conversation)
1626    {
1627        HashMap<MucOptions.User.OccupantId, MucOptions.User.CacheEntry> cache = new HashMap<>();
1628        Cursor cursor = null;
1629        try {
1630            SQLiteDatabase db = this.getReadableDatabase();
1631            String[] selectionArgs = {conversation.getUuid()};
1632            cursor = db.rawQuery(
1633                    "select * from "
1634                            + MucOptions.User.CacheEntry.TABLENAME
1635                            + " where "
1636                            + MucOptions.User.CacheEntry.CONVERSATION_UUID
1637                            + "= ?",
1638                        selectionArgs
1639            );
1640            while (cursor.moveToNext()) {
1641                final var avatar = cursor.getString(cursor.getColumnIndexOrThrow(MucOptions.User.CacheEntry.AVATAR));
1642                final var nick = cursor.getString(cursor.getColumnIndexOrThrow(MucOptions.User.CacheEntry.NICK));
1643                final var occupantId = cursor.getString(cursor.getColumnIndexOrThrow(MucOptions.User.CacheEntry.OCCUPANT_ID));
1644                cache.put(
1645                    new MucOptions.User.OccupantId(occupantId),
1646                    new MucOptions.User.CacheEntry(avatar, nick)
1647                );
1648            }
1649        } finally {
1650            if (cursor != null) cursor.close();
1651        }
1652
1653        return cache;
1654    }
1655
1656    public CopyOnWriteArrayList<Conversation> getConversations(int status) {
1657        CopyOnWriteArrayList<Conversation> list = new CopyOnWriteArrayList<>();
1658        SQLiteDatabase db = this.getReadableDatabase();
1659        String[] selectionArgs = {Integer.toString(status)};
1660        Cursor cursor =
1661                db.rawQuery(
1662                        "select " + String.join(", ", Conversation.ALL_COLUMNS) + " from "
1663                                + Conversation.TABLENAME
1664                                + " where "
1665                                + Conversation.STATUS
1666                                + " = ? and "
1667                                + Conversation.CONTACTJID
1668                                + " is not null order by "
1669                                + Conversation.CREATED
1670                                + " desc",
1671                        selectionArgs);
1672        while (cursor.moveToNext()) {
1673            final Conversation conversation = Conversation.fromCursor(cursor);
1674            if (conversation.getJid() instanceof Jid.Invalid) {
1675                continue;
1676            }
1677            conversation.putAllInMucOccupantCache(getMucUsersForConversation(conversation));
1678            list.add(conversation);
1679        }
1680        cursor.close();
1681        return list;
1682    }
1683
1684    public Message getMessage(Conversation conversation, String uuid) {
1685        ArrayList<Message> list = new ArrayList<>();
1686        SQLiteDatabase db = this.getReadableDatabase();
1687        Cursor cursor;
1688        cursor = db.rawQuery(
1689            "SELECT * FROM " + Message.TABLENAME + " " +
1690            "LEFT JOIN cheogram." + Message.TABLENAME +
1691            "  USING (" + Message.UUID + ")" +
1692            "WHERE " + Message.UUID + "=?",
1693            new String[]{uuid}
1694        );
1695        while (cursor.moveToNext()) {
1696            try {
1697                return Message.fromCursor(cursor, conversation);
1698            } catch (Exception e) {
1699                Log.e(Config.LOGTAG, "unable to restore message");
1700            }
1701        }
1702        cursor.close();
1703        return null;
1704    }
1705
1706    public ArrayList<Message> getMessages(Conversation conversations, int limit) {
1707        return getMessages(conversations, limit, -1);
1708    }
1709
1710    public Map<String, Message> getMessageFuzzyIds(Conversation conversation, Collection<String> ids) {
1711        final var result = new Hashtable<String, Message>();
1712        if (ids.size() < 1) return result;
1713        final ArrayList<String> params = new ArrayList<>();
1714        final ArrayList<String> template = new ArrayList<>();
1715        for (final var id : ids) {
1716            template.add("?");
1717        }
1718        params.addAll(ids);
1719        params.addAll(ids);
1720        params.addAll(ids);
1721        ArrayList<Message> list = new ArrayList<>();
1722        SQLiteDatabase db = this.getReadableDatabase();
1723        Cursor cursor;
1724        cursor = db.rawQuery(
1725            "SELECT * FROM " + Message.TABLENAME + " " +
1726            "LEFT JOIN cheogram." + Message.TABLENAME +
1727            "  USING (" + Message.UUID + ")" +
1728            "WHERE " + Message.UUID + " IN (" + TextUtils.join(",", template) + ") OR " + Message.SERVER_MSG_ID + " IN (" + TextUtils.join(",", template) + ") OR " + Message.REMOTE_MSG_ID + " IN (" + TextUtils.join(",", template) + ")",
1729            params.toArray(new String[0])
1730        );
1731
1732        while (cursor.moveToNext()) {
1733            try {
1734                final var m = Message.fromCursor(cursor, conversation);
1735                if (ids.contains(m.getUuid())) result.put(m.getUuid(), m);
1736                if (ids.contains(m.getServerMsgId())) result.put(m.getServerMsgId(), m);
1737                if (ids.contains(m.getRemoteMsgId())) result.put(m.getRemoteMsgId(), m);
1738            } catch (Exception e) {
1739                Log.e(Config.LOGTAG, "unable to restore message");
1740            }
1741        }
1742        cursor.close();
1743        return result;
1744    }
1745
1746    public ArrayList<Message> getMessages(Conversation conversation, int limit, long timestamp) {
1747        ArrayList<Message> list = new ArrayList<>();
1748        SQLiteDatabase db = this.getReadableDatabase();
1749        Cursor cursor;
1750        if (timestamp == -1) {
1751            String[] selectionArgs = {conversation.getUuid()};
1752            cursor = db.rawQuery(
1753                "SELECT * FROM " + Message.TABLENAME + " " +
1754                "LEFT JOIN cheogram." + Message.TABLENAME +
1755                "  USING (" + Message.UUID + ")" +
1756                " WHERE " + Message.UUID + " IN (" +
1757                "SELECT " + Message.UUID + " FROM " + Message.TABLENAME +
1758                " WHERE " + Message.CONVERSATION + "=? " +
1759                "ORDER BY " + Message.TIME_SENT + " DESC " +
1760                "LIMIT " + String.valueOf(limit) + ") " +
1761                "ORDER BY " + Message.TIME_SENT + " DESC ",
1762                selectionArgs
1763            );
1764        } else {
1765            String[] selectionArgs = {conversation.getUuid(),
1766                    Long.toString(timestamp)};
1767            cursor = db.rawQuery(
1768                "SELECT * FROM " + Message.TABLENAME + " " +
1769                "LEFT JOIN cheogram." + Message.TABLENAME +
1770                "  USING (" + Message.UUID + ")" +
1771                " WHERE " + Message.UUID + " IN (" +
1772                "SELECT " + Message.UUID + " FROM " + Message.TABLENAME +
1773                " WHERE " + Message.CONVERSATION + "=? AND " +
1774                Message.TIME_SENT + "<? " +
1775                "ORDER BY " + Message.TIME_SENT + " DESC " +
1776                "LIMIT " + String.valueOf(limit) + ") " +
1777                "ORDER BY " + Message.TIME_SENT + " DESC ",
1778                selectionArgs
1779            );
1780        }
1781        CursorUtils.upgradeCursorWindowSize(cursor);
1782        final Multimap<String, Message> waitingForReplies = HashMultimap.create();
1783        final var replyIds = new HashSet<String>();
1784        while (cursor.moveToNext()) {
1785            try {
1786                final var m = Message.fromCursor(cursor, conversation);
1787                final var reply = m.getReply();
1788                if (reply != null && reply.getAttribute("id") != null) { // Guard against busted replies
1789                    replyIds.add(reply.getAttribute("id"));
1790                    waitingForReplies.put(reply.getAttribute("id"), m);
1791                }
1792                list.add(0, m);
1793            } catch (Exception e) {
1794                Log.e(Config.LOGTAG, "unable to restore message", e);
1795            }
1796        }
1797        for (final var parent : getMessageFuzzyIds(conversation, replyIds).entrySet()) {
1798            for (final var m : waitingForReplies.get(parent.getKey())) {
1799                m.setInReplyTo(parent.getValue());
1800            }
1801        }
1802        cursor.close();
1803        return list;
1804    }
1805
1806    public Cursor getMessageSearchCursor(final List<String> term, final String uuid) {
1807        final SQLiteDatabase db = this.getReadableDatabase();
1808        final StringBuilder SQL = new StringBuilder();
1809        final String[] selectionArgs;
1810        SQL.append(
1811                "SELECT "
1812                        + Message.TABLENAME
1813                        + ".*,"
1814                        + Conversation.TABLENAME
1815                        + "."
1816                        + Conversation.CONTACTJID
1817                        + ","
1818                        + Conversation.TABLENAME
1819                        + "."
1820                        + Conversation.ACCOUNT
1821                        + ","
1822                        + Conversation.TABLENAME
1823                        + "."
1824                        + Conversation.MODE
1825                        + " FROM "
1826                        + Message.TABLENAME
1827                        + " JOIN "
1828                        + Conversation.TABLENAME
1829                        + " ON "
1830                        + Message.TABLENAME
1831                        + "."
1832                        + Message.CONVERSATION
1833                        + "="
1834                        + Conversation.TABLENAME
1835                        + "."
1836                        + Conversation.UUID
1837                        + " JOIN messages_index ON messages_index.rowid=messages.rowid WHERE "
1838                        + Message.ENCRYPTION
1839                        + " NOT IN("
1840                        + Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE
1841                        + ","
1842                        + Message.ENCRYPTION_PGP
1843                        + ","
1844                        + Message.ENCRYPTION_DECRYPTION_FAILED
1845                        + ","
1846                        + Message.ENCRYPTION_AXOLOTL_FAILED
1847                        + ") AND "
1848                        + Message.TYPE
1849                        + " IN("
1850                        + Message.TYPE_TEXT
1851                        + ","
1852                        + Message.TYPE_PRIVATE
1853                        + ") AND messages_index.body MATCH ?");
1854        if (uuid == null) {
1855            selectionArgs = new String[] {FtsUtils.toMatchString(term)};
1856        } else {
1857            selectionArgs = new String[] {FtsUtils.toMatchString(term), uuid};
1858            SQL.append(" AND " + Conversation.TABLENAME + '.' + Conversation.UUID + "=?");
1859        }
1860        SQL.append(" ORDER BY " + Message.TIME_SENT + " DESC limit " + Config.MAX_SEARCH_RESULTS);
1861        Log.d(Config.LOGTAG, "search term: " + FtsUtils.toMatchString(term));
1862        return db.rawQuery(SQL.toString(), selectionArgs);
1863    }
1864
1865    public List<String> markFileAsDeleted(final File file, final boolean internal) {
1866        SQLiteDatabase db = this.getReadableDatabase();
1867        String selection;
1868        String[] selectionArgs;
1869        if (internal) {
1870            final String name = file.getName();
1871            if (name.endsWith(".pgp")) {
1872                selection =
1873                        "("
1874                                + Message.RELATIVE_FILE_PATH
1875                                + " IN(?,?) OR ("
1876                                + Message.RELATIVE_FILE_PATH
1877                                + "=? and encryption in(1,4))) and type in (1,2,5)";
1878                selectionArgs =
1879                        new String[] {
1880                            file.getAbsolutePath(), name, name.substring(0, name.length() - 4)
1881                        };
1882            } else {
1883                selection = Message.RELATIVE_FILE_PATH + " IN(?,?) and type in (1,2,5)";
1884                selectionArgs = new String[] {file.getAbsolutePath(), name};
1885            }
1886        } else {
1887            selection = Message.RELATIVE_FILE_PATH + "=? and type in (1,2,5)";
1888            selectionArgs = new String[] {file.getAbsolutePath()};
1889        }
1890        final List<String> uuids = new ArrayList<>();
1891        Cursor cursor =
1892                db.query(
1893                        Message.TABLENAME,
1894                        new String[] {Message.UUID},
1895                        selection,
1896                        selectionArgs,
1897                        null,
1898                        null,
1899                        null);
1900        while (cursor != null && cursor.moveToNext()) {
1901            uuids.add(cursor.getString(0));
1902        }
1903        if (cursor != null) {
1904            cursor.close();
1905        }
1906        markFileAsDeleted(uuids);
1907        return uuids;
1908    }
1909
1910    public void markFileAsDeleted(List<String> uuids) {
1911        SQLiteDatabase db = this.getReadableDatabase();
1912        final ContentValues contentValues = new ContentValues();
1913        final String where = Message.UUID + "=?";
1914        contentValues.put(Message.DELETED, 1);
1915        db.beginTransaction();
1916        for (String uuid : uuids) {
1917            db.update(Message.TABLENAME, contentValues, where, new String[] {uuid});
1918        }
1919        db.setTransactionSuccessful();
1920        db.endTransaction();
1921    }
1922
1923    public void markFilesAsChanged(List<FilePathInfo> files) {
1924        SQLiteDatabase db = this.getReadableDatabase();
1925        final String where = Message.UUID + "=?";
1926        db.beginTransaction();
1927        for (FilePathInfo info : files) {
1928            final ContentValues contentValues = new ContentValues();
1929            contentValues.put(Message.DELETED, info.deleted ? 1 : 0);
1930            db.update(Message.TABLENAME, contentValues, where, new String[] {info.uuid.toString()});
1931        }
1932        db.setTransactionSuccessful();
1933        db.endTransaction();
1934    }
1935
1936    public List<FilePathInfo> getFilePathInfo() {
1937        final SQLiteDatabase db = this.getReadableDatabase();
1938        final Cursor cursor =
1939                db.query(
1940                        Message.TABLENAME,
1941                        new String[] {Message.UUID, Message.RELATIVE_FILE_PATH, Message.DELETED},
1942                        "type in (1,2,5) and " + Message.RELATIVE_FILE_PATH + " is not null",
1943                        null,
1944                        null,
1945                        null,
1946                        null);
1947        final List<FilePathInfo> list = new ArrayList<>();
1948        while (cursor != null && cursor.moveToNext()) {
1949            list.add(
1950                    new FilePathInfo(
1951                            cursor.getString(0), cursor.getString(1), cursor.getInt(2) > 0));
1952        }
1953        if (cursor != null) {
1954            cursor.close();
1955        }
1956        return list;
1957    }
1958
1959    public List<FilePath> getRelativeFilePaths(String account, Jid jid, int limit) {
1960        SQLiteDatabase db = this.getReadableDatabase();
1961        final String SQL =
1962                "select uuid,relativeFilePath from messages where type in (1,2,5) and deleted=0 and"
1963                        + " "
1964                        + Message.RELATIVE_FILE_PATH
1965                        + " is not null and conversationUuid=(select uuid from conversations where"
1966                        + " accountUuid=? and (contactJid=? or contactJid like ?)) order by"
1967                        + " timeSent desc";
1968        final String[] args = {account, jid.toString(), jid + "/%"};
1969        Cursor cursor = db.rawQuery(SQL + (limit > 0 ? " limit " + limit : ""), args);
1970        List<FilePath> filesPaths = new ArrayList<>();
1971        while (cursor.moveToNext()) {
1972            filesPaths.add(new FilePath(cursor.getString(0), cursor.getString(1)));
1973        }
1974        cursor.close();
1975        return filesPaths;
1976    }
1977
1978    public Message getMessageWithServerMsgId(
1979            final Conversation conversation, final String messageId) {
1980        final var db = this.getReadableDatabase();
1981        final String sql =
1982                "select * from messages LEFT JOIN cheogram.messages USING (uuid) where conversationUuid=? and serverMsgId=? LIMIT 1";
1983        final String[] args = {conversation.getUuid(), messageId};
1984        final Cursor cursor = db.rawQuery(sql, args);
1985        if (cursor == null) {
1986            return null;
1987        }
1988        Message message = null;
1989        try {
1990            if (cursor.moveToFirst()) {
1991                message = Message.fromCursor(cursor, conversation);
1992            }
1993        } catch (final IOException e) { }
1994        cursor.close();
1995        return message;
1996    }
1997
1998    public Message getMessageWithUuidOrRemoteId(
1999            final Conversation conversation, final String messageId) {
2000        final var db = this.getReadableDatabase();
2001        final String sql =
2002                "select * from messages LEFT JOIN cheogram.messages USING (uuid) where conversationUuid=? and (uuid=? OR remoteMsgId=?) LIMIT 1";
2003        final String[] args = {conversation.getUuid(), messageId, messageId};
2004        final Cursor cursor = db.rawQuery(sql, args);
2005        if (cursor == null) {
2006            return null;
2007        }
2008        Message message = null;
2009        try {
2010            if (cursor.moveToFirst()) {
2011                message = Message.fromCursor(cursor, conversation);
2012            }
2013        } catch (final IOException e) { }
2014        cursor.close();
2015        return message;
2016    }
2017
2018    public void insertCapsCache(
2019            EntityCapabilities.EntityCapsHash caps,
2020            EntityCapabilities2.EntityCaps2Hash caps2,
2021            InfoQuery infoQuery) {
2022        final var contentValues = new ContentValues();
2023        contentValues.put("caps", caps.encoded());
2024        contentValues.put("caps2", caps2.encoded());
2025        contentValues.put("disco_info", infoQuery.toString());
2026        getWritableDatabase()
2027                .insertWithOnConflict(
2028                        "caps_cache", null, contentValues, SQLiteDatabase.CONFLICT_REPLACE);
2029    }
2030
2031    public InfoQuery getInfoQuery(final EntityCapabilities.Hash hash) {
2032        final String selection;
2033        final String[] args;
2034        if (hash instanceof EntityCapabilities.EntityCapsHash) {
2035            selection = "caps=?";
2036            args = new String[] {hash.encoded()};
2037        } else if (hash instanceof EntityCapabilities2.EntityCaps2Hash) {
2038            selection = "caps2=?";
2039            args = new String[] {hash.encoded()};
2040        } else {
2041            return null;
2042        }
2043        try (final Cursor cursor =
2044                getReadableDatabase()
2045                        .query(
2046                                "caps_cache",
2047                                new String[] {"disco_info"},
2048                                selection,
2049                                args,
2050                                null,
2051                                null,
2052                                null)) {
2053            if (cursor.moveToFirst()) {
2054                final var cached = cursor.getString(0);
2055                try {
2056                    final var element =
2057                            XmlElementReader.read(cached.getBytes(StandardCharsets.UTF_8));
2058                    if (element instanceof InfoQuery infoQuery) {
2059                        return infoQuery;
2060                    }
2061                } catch (final IOException e) {
2062                    Log.e(Config.LOGTAG, "could not restore info query from cache", e);
2063                    return null;
2064                }
2065            } else {
2066                return null;
2067            }
2068        }
2069        return null;
2070    }
2071
2072    public static class FilePath {
2073        public final UUID uuid;
2074        public final String path;
2075
2076        private FilePath(String uuid, String path) {
2077            this.uuid = UUID.fromString(uuid);
2078            this.path = path;
2079        }
2080    }
2081
2082    public static class FilePathInfo extends FilePath {
2083        public boolean deleted;
2084
2085        private FilePathInfo(String uuid, String path, boolean deleted) {
2086            super(uuid, path);
2087            this.deleted = deleted;
2088        }
2089
2090        public boolean setDeleted(boolean deleted) {
2091            final boolean changed = deleted != this.deleted;
2092            this.deleted = deleted;
2093            return changed;
2094        }
2095    }
2096
2097    public Conversation findConversation(final String uuid) {
2098        final var db = this.getReadableDatabase();
2099        final String[] selectionArgs = {uuid};
2100        try (final Cursor cursor =
2101                db.query(
2102                        Conversation.TABLENAME,
2103                        null,
2104                        Conversation.UUID + "=?",
2105                        selectionArgs,
2106                        null,
2107                        null,
2108                        null)) {
2109            if (cursor.getCount() == 0) {
2110                return null;
2111            }
2112            cursor.moveToFirst();
2113            final Conversation conversation = Conversation.fromCursor(cursor);
2114            if (conversation.getJid() instanceof Jid.Invalid) {
2115                return null;
2116            }
2117            return conversation;
2118        }
2119    }
2120
2121    public Conversation findConversation(final Account account, final Jid contactJid) {
2122        final SQLiteDatabase db = this.getReadableDatabase();
2123        final String[] selectionArgs = {
2124            account.getUuid(),
2125            contactJid.asBareJid().toString() + "/%",
2126            contactJid.asBareJid().toString()
2127        };
2128        try (final Cursor cursor =
2129                db.query(
2130                        Conversation.TABLENAME,
2131                        null,
2132                        Conversation.ACCOUNT
2133                                + "=? AND ("
2134                                + Conversation.CONTACTJID
2135                                + " like ? OR "
2136                                + Conversation.CONTACTJID
2137                                + "=?)",
2138                        selectionArgs,
2139                        null,
2140                        null,
2141                        null)) {
2142            if (cursor.getCount() == 0) {
2143                return null;
2144            }
2145            cursor.moveToFirst();
2146            final Conversation conversation = Conversation.fromCursor(cursor);
2147            if (conversation.getJid() instanceof Jid.Invalid) {
2148                return null;
2149            }
2150            conversation.setAccount(account);
2151            return conversation;
2152        }
2153    }
2154
2155    public String findConversationUuid(final Jid account, final Jid jid) {
2156        final SQLiteDatabase db = this.getReadableDatabase();
2157        final String[] selectionArgs = {
2158            account.getLocal(),
2159            account.getDomain().toString(),
2160            jid.asBareJid().toString() + "/%",
2161            jid.asBareJid().toString()
2162        };
2163        try (final Cursor cursor =
2164                db.rawQuery(
2165                        "SELECT conversations.uuid FROM conversations JOIN accounts ON"
2166                            + " conversations.accountUuid=accounts.uuid WHERE accounts.username=?"
2167                            + " AND accounts.server=? AND (contactJid=? OR contactJid LIKE ?)",
2168                        selectionArgs)) {
2169            if (cursor.getCount() == 0) {
2170                return null;
2171            }
2172            cursor.moveToFirst();
2173            return cursor.getString(0);
2174        }
2175    }
2176
2177    public void updateConversation(final Conversation conversation) throws SQLiteException {
2178        final SQLiteDatabase db = this.getWritableDatabase();
2179        db.beginTransaction();
2180        try {
2181            final String[] args = {conversation.getUuid()};
2182            db.update(
2183                    Conversation.TABLENAME,
2184                    conversation.getContentValues(),
2185                    Conversation.UUID + "=?",
2186                    args);
2187            for (final var cv : conversation.mucOccupantCacheAsContentValues()) {
2188                db.insertWithOnConflict(
2189                        MucOptions.User.CacheEntry.TABLENAME,
2190                        null,
2191                        cv,
2192                        SQLiteDatabase.CONFLICT_REPLACE);
2193            }
2194            db.setTransactionSuccessful();
2195        } finally {
2196            db.endTransaction();
2197        }
2198    }
2199
2200    public List<Account> getAccounts() {
2201        SQLiteDatabase db = this.getReadableDatabase();
2202        return getAccounts(db);
2203    }
2204
2205    public List<Jid> getAccountJids(final boolean enabledOnly) {
2206        final SQLiteDatabase db = this.getReadableDatabase();
2207        final List<Jid> jids = new ArrayList<>();
2208        final String[] columns = new String[] {Account.USERNAME, Account.SERVER};
2209        final String where = enabledOnly ? "not options & (1 <<1)" : null;
2210        try (final Cursor cursor =
2211                db.query(Account.TABLENAME, columns, where, null, null, null, null)) {
2212            while (cursor != null && cursor.moveToNext()) {
2213                jids.add(Jid.of(cursor.getString(0), cursor.getString(1), null));
2214            }
2215        } catch (final Exception e) {
2216            return jids;
2217        }
2218        return jids;
2219    }
2220
2221    private List<Account> getAccounts(SQLiteDatabase db) {
2222        final List<Account> list = new ArrayList<>();
2223        try (final Cursor cursor =
2224                db.query(Account.TABLENAME, null, null, null, null, null, null)) {
2225            while (cursor != null && cursor.moveToNext()) {
2226                list.add(Account.fromCursor(cursor));
2227            }
2228        }
2229        return list;
2230    }
2231
2232    public boolean updateAccount(Account account) {
2233        final var db = this.getWritableDatabase();
2234        final String[] args = {account.getUuid()};
2235        final int rows =
2236                db.update(Account.TABLENAME, account.getContentValues(), Account.UUID + "=?", args);
2237        return rows == 1;
2238    }
2239
2240    public boolean deleteAccount(final Account account) {
2241        final var db = this.getWritableDatabase();
2242        final String[] args = {account.getUuid()};
2243        final int rows = db.delete(Account.TABLENAME, Account.UUID + "=?", args);
2244        return rows == 1;
2245    }
2246
2247    public boolean updateMessage(final Message message, final boolean includeBody) {
2248        final var db = this.getWritableDatabase();
2249        final String[] args = {message.getUuid()};
2250        final var contentValues = message.getContentValues();
2251        contentValues.remove(Message.UUID);
2252        if (!includeBody) {
2253            contentValues.remove(Message.BODY);
2254        }
2255        return db.update(Message.TABLENAME, contentValues, Message.UUID + "=?", args) == 1 &&
2256               db.update("cheogram." + Message.TABLENAME, message.getCheogramContentValues(), Message.UUID + "=?", args) == 1;
2257    }
2258
2259    public boolean updateMessage(Message message, String uuid) {
2260        SQLiteDatabase db = this.getWritableDatabase();
2261        String[] args = {uuid};
2262        return db.update(Message.TABLENAME, message.getContentValues(), Message.UUID + "=?", args) == 1 &&
2263               db.update("cheogram." + Message.TABLENAME, message.getCheogramContentValues(), Message.UUID + "=?", args) == 1;
2264    }
2265
2266
2267    public boolean deleteMessage(String uuid) {
2268        SQLiteDatabase db = this.getWritableDatabase();
2269        String[] args = {uuid};
2270        return db.delete(Message.TABLENAME, Message.UUID + "=?", args) == 1 &&
2271               db.delete("cheogram." + Message.TABLENAME, Message.UUID + "=?", args) == 1;
2272    }
2273
2274    public Map<Jid, Contact> readRoster(final Account account) {
2275        final var builder = new ImmutableMap.Builder<Jid, Contact>();
2276        final SQLiteDatabase db = this.getReadableDatabase();
2277        final String[] args = {account.getUuid()};
2278        try (final Cursor cursor =
2279                db.query(Contact.TABLENAME, null, Contact.ACCOUNT + "=?", args, null, null, null)) {
2280            while (cursor.moveToNext()) {
2281                final var contact = Contact.fromCursor(cursor);
2282                if (contact != null) {
2283                    contact.setAccount(account);
2284                    builder.put(contact.getJid(), contact);
2285                }
2286            }
2287        }
2288        return builder.buildKeepingLast();
2289    }
2290
2291    public void writeRoster(
2292            final Account account, final String version, final List<Contact> contacts) {
2293        final long start = SystemClock.elapsedRealtime();
2294        final SQLiteDatabase db = this.getWritableDatabase();
2295        db.beginTransaction();
2296        for (final Contact contact : contacts) {
2297            if (contact.getOption(Contact.Options.IN_ROSTER)
2298                    || contact.hasAvatarOrPresenceName()
2299                    || contact.getOption(Contact.Options.SYNCED_VIA_OTHER)) {
2300                db.insert(Contact.TABLENAME, null, contact.getContentValues());
2301            } else {
2302                String where = Contact.ACCOUNT + "=? AND " + Contact.JID + "=?";
2303                String[] whereArgs = {account.getUuid(), contact.getJid().toString()};
2304                db.delete(Contact.TABLENAME, where, whereArgs);
2305            }
2306        }
2307        db.setTransactionSuccessful();
2308        db.endTransaction();
2309        account.setRosterVersion(version);
2310        updateAccount(account);
2311        long duration = SystemClock.elapsedRealtime() - start;
2312        Log.d(
2313                Config.LOGTAG,
2314                account.getJid().asBareJid() + ": persisted roster in " + duration + "ms");
2315    }
2316
2317    public void deleteMessagesInConversation(Conversation conversation) {
2318        long start = SystemClock.elapsedRealtime();
2319        final SQLiteDatabase db = this.getWritableDatabase();
2320        db.beginTransaction();
2321        final String[] args = {conversation.getUuid()};
2322        int num = db.delete(Message.TABLENAME, Message.CONVERSATION + "=?", args);
2323        db.delete("cheogram.webxdc_updates", Message.CONVERSATION + "=?", args);
2324        db.setTransactionSuccessful();
2325        db.endTransaction();
2326        Log.d(
2327                Config.LOGTAG,
2328                "deleted "
2329                        + num
2330                        + " messages for "
2331                        + conversation.getJid().asBareJid()
2332                        + " in "
2333                        + (SystemClock.elapsedRealtime() - start)
2334                        + "ms");
2335    }
2336
2337    public void expireOldMessages(long timestamp) {
2338        final String[] args = {String.valueOf(timestamp)};
2339        SQLiteDatabase db = this.getReadableDatabase();
2340        db.beginTransaction();
2341        db.delete(Message.TABLENAME, "timeSent<?", args);
2342        db.delete("cheogram.messages", "timeReceived<?", args);
2343        db.setTransactionSuccessful();
2344        db.endTransaction();
2345    }
2346
2347    public MamReference getLastMessageReceived(Account account) {
2348        Cursor cursor = null;
2349        try {
2350            SQLiteDatabase db = this.getReadableDatabase();
2351            String sql =
2352                    "select messages.timeSent,messages.serverMsgId from accounts join conversations"
2353                        + " on accounts.uuid=conversations.accountUuid join messages on"
2354                        + " conversations.uuid=messages.conversationUuid where accounts.uuid=? and"
2355                        + " (messages.status=0 or messages.carbon=1 or messages.serverMsgId not"
2356                        + " null) and (conversations.mode=0 or (messages.serverMsgId not null and"
2357                        + " messages.type=4)) order by messages.timesent desc limit 1";
2358            String[] args = {account.getUuid()};
2359            cursor = db.rawQuery(sql, args);
2360            if (cursor.getCount() == 0) {
2361                return null;
2362            } else {
2363                cursor.moveToFirst();
2364                return new MamReference(cursor.getLong(0), cursor.getString(1));
2365            }
2366        } catch (Exception e) {
2367            return null;
2368        } finally {
2369            if (cursor != null) {
2370                cursor.close();
2371            }
2372        }
2373    }
2374
2375    public long getLastTimeFingerprintUsed(Account account, String fingerprint) {
2376        String SQL =
2377                "select messages.timeSent from accounts join conversations on"
2378                        + " accounts.uuid=conversations.accountUuid join messages on"
2379                        + " conversations.uuid=messages.conversationUuid where accounts.uuid=? and"
2380                        + " messages.axolotl_fingerprint=? order by messages.timesent desc limit 1";
2381        String[] args = {account.getUuid(), fingerprint};
2382        Cursor cursor = getReadableDatabase().rawQuery(SQL, args);
2383        long time;
2384        if (cursor.moveToFirst()) {
2385            time = cursor.getLong(0);
2386        } else {
2387            time = 0;
2388        }
2389        cursor.close();
2390        return time;
2391    }
2392
2393    public MamReference getLastClearDate(Account account) {
2394        SQLiteDatabase db = this.getReadableDatabase();
2395        String[] columns = {Conversation.ATTRIBUTES};
2396        String selection = Conversation.ACCOUNT + "=?";
2397        String[] args = {account.getUuid()};
2398        Cursor cursor =
2399                db.query(Conversation.TABLENAME, columns, selection, args, null, null, null);
2400        MamReference maxClearDate = new MamReference(0);
2401        while (cursor.moveToNext()) {
2402            try {
2403                final JSONObject o = new JSONObject(cursor.getString(0));
2404                maxClearDate =
2405                        MamReference.max(
2406                                maxClearDate,
2407                                MamReference.fromAttribute(
2408                                        o.getString(Conversation.ATTRIBUTE_LAST_CLEAR_HISTORY)));
2409            } catch (Exception e) {
2410                // ignored
2411            }
2412        }
2413        cursor.close();
2414        return maxClearDate;
2415    }
2416
2417    private Cursor getCursorForSession(Account account, SignalProtocolAddress contact) {
2418        final SQLiteDatabase db = this.getReadableDatabase();
2419        String[] selectionArgs = {
2420            account.getUuid(), contact.getName(), Integer.toString(contact.getDeviceId())
2421        };
2422        return db.query(
2423                SQLiteAxolotlStore.SESSION_TABLENAME,
2424                null,
2425                SQLiteAxolotlStore.ACCOUNT
2426                        + " = ? AND "
2427                        + SQLiteAxolotlStore.NAME
2428                        + " = ? AND "
2429                        + SQLiteAxolotlStore.DEVICE_ID
2430                        + " = ? ",
2431                selectionArgs,
2432                null,
2433                null,
2434                null);
2435    }
2436
2437    public SessionRecord loadSession(Account account, SignalProtocolAddress contact) {
2438        SessionRecord session = null;
2439        Cursor cursor = getCursorForSession(account, contact);
2440        if (cursor.getCount() != 0) {
2441            cursor.moveToFirst();
2442            try {
2443                session =
2444                        new SessionRecord(
2445                                Base64.decode(
2446                                        cursor.getString(
2447                                                cursor.getColumnIndex(SQLiteAxolotlStore.KEY)),
2448                                        Base64.DEFAULT));
2449            } catch (IOException e) {
2450                cursor.close();
2451                throw new AssertionError(e);
2452            }
2453        }
2454        cursor.close();
2455        return session;
2456    }
2457
2458    public List<Integer> getSubDeviceSessions(Account account, SignalProtocolAddress contact) {
2459        final SQLiteDatabase db = this.getReadableDatabase();
2460        return getSubDeviceSessions(db, account, contact);
2461    }
2462
2463    private List<Integer> getSubDeviceSessions(
2464            SQLiteDatabase db, Account account, SignalProtocolAddress contact) {
2465        List<Integer> devices = new ArrayList<>();
2466        String[] columns = {SQLiteAxolotlStore.DEVICE_ID};
2467        String[] selectionArgs = {account.getUuid(), contact.getName()};
2468        Cursor cursor =
2469                db.query(
2470                        SQLiteAxolotlStore.SESSION_TABLENAME,
2471                        columns,
2472                        SQLiteAxolotlStore.ACCOUNT + " = ? AND " + SQLiteAxolotlStore.NAME + " = ?",
2473                        selectionArgs,
2474                        null,
2475                        null,
2476                        null);
2477
2478        while (cursor.moveToNext()) {
2479            devices.add(cursor.getInt(cursor.getColumnIndex(SQLiteAxolotlStore.DEVICE_ID)));
2480        }
2481
2482        cursor.close();
2483        return devices;
2484    }
2485
2486    public List<String> getKnownSignalAddresses(Account account) {
2487        List<String> addresses = new ArrayList<>();
2488        String[] colums = {"DISTINCT " + SQLiteAxolotlStore.NAME};
2489        String[] selectionArgs = {account.getUuid()};
2490        Cursor cursor =
2491                getReadableDatabase()
2492                        .query(
2493                                SQLiteAxolotlStore.SESSION_TABLENAME,
2494                                colums,
2495                                SQLiteAxolotlStore.ACCOUNT + " = ?",
2496                                selectionArgs,
2497                                null,
2498                                null,
2499                                null);
2500        while (cursor.moveToNext()) {
2501            addresses.add(cursor.getString(0));
2502        }
2503        cursor.close();
2504        return addresses;
2505    }
2506
2507    public boolean containsSession(Account account, SignalProtocolAddress contact) {
2508        Cursor cursor = getCursorForSession(account, contact);
2509        int count = cursor.getCount();
2510        cursor.close();
2511        return count != 0;
2512    }
2513
2514    public void storeSession(
2515            Account account, SignalProtocolAddress contact, SessionRecord session) {
2516        SQLiteDatabase db = this.getWritableDatabase();
2517        ContentValues values = new ContentValues();
2518        values.put(SQLiteAxolotlStore.NAME, contact.getName());
2519        values.put(SQLiteAxolotlStore.DEVICE_ID, contact.getDeviceId());
2520        values.put(
2521                SQLiteAxolotlStore.KEY, Base64.encodeToString(session.serialize(), Base64.DEFAULT));
2522        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
2523        db.insert(SQLiteAxolotlStore.SESSION_TABLENAME, null, values);
2524    }
2525
2526    public void deleteSession(Account account, SignalProtocolAddress contact) {
2527        SQLiteDatabase db = this.getWritableDatabase();
2528        deleteSession(db, account, contact);
2529    }
2530
2531    private void deleteSession(SQLiteDatabase db, Account account, SignalProtocolAddress contact) {
2532        String[] args = {
2533            account.getUuid(), contact.getName(), Integer.toString(contact.getDeviceId())
2534        };
2535        db.delete(
2536                SQLiteAxolotlStore.SESSION_TABLENAME,
2537                SQLiteAxolotlStore.ACCOUNT
2538                        + " = ? AND "
2539                        + SQLiteAxolotlStore.NAME
2540                        + " = ? AND "
2541                        + SQLiteAxolotlStore.DEVICE_ID
2542                        + " = ? ",
2543                args);
2544    }
2545
2546    public void deleteAllSessions(Account account, SignalProtocolAddress contact) {
2547        SQLiteDatabase db = this.getWritableDatabase();
2548        String[] args = {account.getUuid(), contact.getName()};
2549        db.delete(
2550                SQLiteAxolotlStore.SESSION_TABLENAME,
2551                SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.NAME + " = ?",
2552                args);
2553    }
2554
2555    private Cursor getCursorForPreKey(Account account, int preKeyId) {
2556        SQLiteDatabase db = this.getReadableDatabase();
2557        String[] columns = {SQLiteAxolotlStore.KEY};
2558        String[] selectionArgs = {account.getUuid(), Integer.toString(preKeyId)};
2559        Cursor cursor =
2560                db.query(
2561                        SQLiteAxolotlStore.PREKEY_TABLENAME,
2562                        columns,
2563                        SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.ID + "=?",
2564                        selectionArgs,
2565                        null,
2566                        null,
2567                        null);
2568
2569        return cursor;
2570    }
2571
2572    public PreKeyRecord loadPreKey(Account account, int preKeyId) {
2573        PreKeyRecord record = null;
2574        Cursor cursor = getCursorForPreKey(account, preKeyId);
2575        if (cursor.getCount() != 0) {
2576            cursor.moveToFirst();
2577            try {
2578                record =
2579                        new PreKeyRecord(
2580                                Base64.decode(
2581                                        cursor.getString(
2582                                                cursor.getColumnIndex(SQLiteAxolotlStore.KEY)),
2583                                        Base64.DEFAULT));
2584            } catch (IOException e) {
2585                throw new AssertionError(e);
2586            }
2587        }
2588        cursor.close();
2589        return record;
2590    }
2591
2592    public boolean containsPreKey(Account account, int preKeyId) {
2593        Cursor cursor = getCursorForPreKey(account, preKeyId);
2594        int count = cursor.getCount();
2595        cursor.close();
2596        return count != 0;
2597    }
2598
2599    public void storePreKey(Account account, PreKeyRecord record) {
2600        SQLiteDatabase db = this.getWritableDatabase();
2601        ContentValues values = new ContentValues();
2602        values.put(SQLiteAxolotlStore.ID, record.getId());
2603        values.put(
2604                SQLiteAxolotlStore.KEY, Base64.encodeToString(record.serialize(), Base64.DEFAULT));
2605        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
2606        db.insert(SQLiteAxolotlStore.PREKEY_TABLENAME, null, values);
2607    }
2608
2609    public int deletePreKey(Account account, int preKeyId) {
2610        SQLiteDatabase db = this.getWritableDatabase();
2611        String[] args = {account.getUuid(), Integer.toString(preKeyId)};
2612        return db.delete(
2613                SQLiteAxolotlStore.PREKEY_TABLENAME,
2614                SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.ID + "=?",
2615                args);
2616    }
2617
2618    private Cursor getCursorForSignedPreKey(Account account, int signedPreKeyId) {
2619        SQLiteDatabase db = this.getReadableDatabase();
2620        String[] columns = {SQLiteAxolotlStore.KEY};
2621        String[] selectionArgs = {account.getUuid(), Integer.toString(signedPreKeyId)};
2622        Cursor cursor =
2623                db.query(
2624                        SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
2625                        columns,
2626                        SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.ID + "=?",
2627                        selectionArgs,
2628                        null,
2629                        null,
2630                        null);
2631
2632        return cursor;
2633    }
2634
2635    public SignedPreKeyRecord loadSignedPreKey(Account account, int signedPreKeyId) {
2636        SignedPreKeyRecord record = null;
2637        Cursor cursor = getCursorForSignedPreKey(account, signedPreKeyId);
2638        if (cursor.getCount() != 0) {
2639            cursor.moveToFirst();
2640            try {
2641                record =
2642                        new SignedPreKeyRecord(
2643                                Base64.decode(
2644                                        cursor.getString(
2645                                                cursor.getColumnIndex(SQLiteAxolotlStore.KEY)),
2646                                        Base64.DEFAULT));
2647            } catch (IOException e) {
2648                throw new AssertionError(e);
2649            }
2650        }
2651        cursor.close();
2652        return record;
2653    }
2654
2655    public List<SignedPreKeyRecord> loadSignedPreKeys(Account account) {
2656        List<SignedPreKeyRecord> prekeys = new ArrayList<>();
2657        SQLiteDatabase db = this.getReadableDatabase();
2658        String[] columns = {SQLiteAxolotlStore.KEY};
2659        String[] selectionArgs = {account.getUuid()};
2660        Cursor cursor =
2661                db.query(
2662                        SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
2663                        columns,
2664                        SQLiteAxolotlStore.ACCOUNT + "=?",
2665                        selectionArgs,
2666                        null,
2667                        null,
2668                        null);
2669
2670        while (cursor.moveToNext()) {
2671            try {
2672                prekeys.add(
2673                        new SignedPreKeyRecord(
2674                                Base64.decode(
2675                                        cursor.getString(
2676                                                cursor.getColumnIndex(SQLiteAxolotlStore.KEY)),
2677                                        Base64.DEFAULT)));
2678            } catch (IOException ignored) {
2679            }
2680        }
2681        cursor.close();
2682        return prekeys;
2683    }
2684
2685    public int getSignedPreKeysCount(Account account) {
2686        String[] columns = {"count(" + SQLiteAxolotlStore.KEY + ")"};
2687        String[] selectionArgs = {account.getUuid()};
2688        SQLiteDatabase db = this.getReadableDatabase();
2689        Cursor cursor =
2690                db.query(
2691                        SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
2692                        columns,
2693                        SQLiteAxolotlStore.ACCOUNT + "=?",
2694                        selectionArgs,
2695                        null,
2696                        null,
2697                        null);
2698        final int count;
2699        if (cursor.moveToFirst()) {
2700            count = cursor.getInt(0);
2701        } else {
2702            count = 0;
2703        }
2704        cursor.close();
2705        return count;
2706    }
2707
2708    public boolean containsSignedPreKey(Account account, int signedPreKeyId) {
2709        Cursor cursor = getCursorForPreKey(account, signedPreKeyId);
2710        int count = cursor.getCount();
2711        cursor.close();
2712        return count != 0;
2713    }
2714
2715    public void storeSignedPreKey(Account account, SignedPreKeyRecord record) {
2716        SQLiteDatabase db = this.getWritableDatabase();
2717        ContentValues values = new ContentValues();
2718        values.put(SQLiteAxolotlStore.ID, record.getId());
2719        values.put(
2720                SQLiteAxolotlStore.KEY, Base64.encodeToString(record.serialize(), Base64.DEFAULT));
2721        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
2722        db.insert(SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME, null, values);
2723    }
2724
2725    public void deleteSignedPreKey(Account account, int signedPreKeyId) {
2726        SQLiteDatabase db = this.getWritableDatabase();
2727        String[] args = {account.getUuid(), Integer.toString(signedPreKeyId)};
2728        db.delete(
2729                SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
2730                SQLiteAxolotlStore.ACCOUNT + "=? AND " + SQLiteAxolotlStore.ID + "=?",
2731                args);
2732    }
2733
2734    private Cursor getIdentityKeyCursor(Account account, String name, boolean own) {
2735        final SQLiteDatabase db = this.getReadableDatabase();
2736        return getIdentityKeyCursor(db, account, name, own);
2737    }
2738
2739    private Cursor getIdentityKeyCursor(
2740            SQLiteDatabase db, Account account, String name, boolean own) {
2741        return getIdentityKeyCursor(db, account, name, own, null);
2742    }
2743
2744    private Cursor getIdentityKeyCursor(Account account, String fingerprint) {
2745        final SQLiteDatabase db = this.getReadableDatabase();
2746        return getIdentityKeyCursor(db, account, fingerprint);
2747    }
2748
2749    private Cursor getIdentityKeyCursor(SQLiteDatabase db, Account account, String fingerprint) {
2750        return getIdentityKeyCursor(db, account, null, null, fingerprint);
2751    }
2752
2753    private Cursor getIdentityKeyCursor(
2754            SQLiteDatabase db, Account account, String name, Boolean own, String fingerprint) {
2755        String[] columns = {
2756            SQLiteAxolotlStore.TRUST,
2757            SQLiteAxolotlStore.ACTIVE,
2758            SQLiteAxolotlStore.LAST_ACTIVATION,
2759            SQLiteAxolotlStore.KEY
2760        };
2761        ArrayList<String> selectionArgs = new ArrayList<>(4);
2762        selectionArgs.add(account.getUuid());
2763        String selectionString = SQLiteAxolotlStore.ACCOUNT + " = ?";
2764        if (name != null) {
2765            selectionArgs.add(name);
2766            selectionString += " AND " + SQLiteAxolotlStore.NAME + " = ?";
2767        }
2768        if (fingerprint != null) {
2769            selectionArgs.add(fingerprint);
2770            selectionString += " AND " + SQLiteAxolotlStore.FINGERPRINT + " = ?";
2771        }
2772        if (own != null) {
2773            selectionArgs.add(own ? "1" : "0");
2774            selectionString += " AND " + SQLiteAxolotlStore.OWN + " = ?";
2775        }
2776        Cursor cursor =
2777                db.query(
2778                        SQLiteAxolotlStore.IDENTITIES_TABLENAME,
2779                        columns,
2780                        selectionString,
2781                        selectionArgs.toArray(new String[selectionArgs.size()]),
2782                        null,
2783                        null,
2784                        null);
2785
2786        return cursor;
2787    }
2788
2789    public IdentityKeyPair loadOwnIdentityKeyPair(Account account) {
2790        SQLiteDatabase db = getReadableDatabase();
2791        return loadOwnIdentityKeyPair(db, account);
2792    }
2793
2794    private IdentityKeyPair loadOwnIdentityKeyPair(SQLiteDatabase db, Account account) {
2795        String name = account.getJid().asBareJid().toString();
2796        IdentityKeyPair identityKeyPair = null;
2797        Cursor cursor = getIdentityKeyCursor(db, account, name, true);
2798        if (cursor.getCount() != 0) {
2799            cursor.moveToFirst();
2800            try {
2801                identityKeyPair =
2802                        new IdentityKeyPair(
2803                                Base64.decode(
2804                                        cursor.getString(
2805                                                cursor.getColumnIndex(SQLiteAxolotlStore.KEY)),
2806                                        Base64.DEFAULT));
2807            } catch (InvalidKeyException e) {
2808                Log.d(
2809                        Config.LOGTAG,
2810                        AxolotlService.getLogprefix(account)
2811                                + "Encountered invalid IdentityKey in database for account"
2812                                + account.getJid().asBareJid()
2813                                + ", address: "
2814                                + name);
2815            }
2816        }
2817        cursor.close();
2818
2819        return identityKeyPair;
2820    }
2821
2822    public Set<IdentityKey> loadIdentityKeys(Account account, String name) {
2823        return loadIdentityKeys(account, name, null);
2824    }
2825
2826    public Set<IdentityKey> loadIdentityKeys(
2827            Account account, String name, FingerprintStatus status) {
2828        Set<IdentityKey> identityKeys = new HashSet<>();
2829        Cursor cursor = getIdentityKeyCursor(account, name, false);
2830
2831        while (cursor.moveToNext()) {
2832            if (status != null && !FingerprintStatus.fromCursor(cursor).equals(status)) {
2833                continue;
2834            }
2835            try {
2836                String key = cursor.getString(cursor.getColumnIndex(SQLiteAxolotlStore.KEY));
2837                if (key != null) {
2838                    identityKeys.add(new IdentityKey(Base64.decode(key, Base64.DEFAULT), 0));
2839                } else {
2840                    Log.d(
2841                            Config.LOGTAG,
2842                            AxolotlService.getLogprefix(account)
2843                                    + "Missing key (possibly preverified) in database for account"
2844                                    + account.getJid().asBareJid()
2845                                    + ", address: "
2846                                    + name);
2847                }
2848            } catch (InvalidKeyException e) {
2849                Log.d(
2850                        Config.LOGTAG,
2851                        AxolotlService.getLogprefix(account)
2852                                + "Encountered invalid IdentityKey in database for account"
2853                                + account.getJid().asBareJid()
2854                                + ", address: "
2855                                + name);
2856            }
2857        }
2858        cursor.close();
2859
2860        return identityKeys;
2861    }
2862
2863    public long numTrustedKeys(Account account, String name) {
2864        SQLiteDatabase db = getReadableDatabase();
2865        String[] args = {
2866            account.getUuid(),
2867            name,
2868            FingerprintStatus.Trust.TRUSTED.toString(),
2869            FingerprintStatus.Trust.VERIFIED.toString(),
2870            FingerprintStatus.Trust.VERIFIED_X509.toString()
2871        };
2872        return DatabaseUtils.queryNumEntries(
2873                db,
2874                SQLiteAxolotlStore.IDENTITIES_TABLENAME,
2875                SQLiteAxolotlStore.ACCOUNT
2876                        + " = ?"
2877                        + " AND "
2878                        + SQLiteAxolotlStore.NAME
2879                        + " = ?"
2880                        + " AND ("
2881                        + SQLiteAxolotlStore.TRUST
2882                        + " = ? OR "
2883                        + SQLiteAxolotlStore.TRUST
2884                        + " = ? OR "
2885                        + SQLiteAxolotlStore.TRUST
2886                        + " = ?)"
2887                        + " AND "
2888                        + SQLiteAxolotlStore.ACTIVE
2889                        + " > 0",
2890                args);
2891    }
2892
2893    private void storeIdentityKey(
2894            Account account,
2895            String name,
2896            boolean own,
2897            String fingerprint,
2898            String base64Serialized,
2899            FingerprintStatus status) {
2900        SQLiteDatabase db = this.getWritableDatabase();
2901        ContentValues values = new ContentValues();
2902        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
2903        values.put(SQLiteAxolotlStore.NAME, name);
2904        values.put(SQLiteAxolotlStore.OWN, own ? 1 : 0);
2905        values.put(SQLiteAxolotlStore.FINGERPRINT, fingerprint);
2906        values.put(SQLiteAxolotlStore.KEY, base64Serialized);
2907        values.putAll(status.toContentValues());
2908        String where =
2909                SQLiteAxolotlStore.ACCOUNT
2910                        + "=? AND "
2911                        + SQLiteAxolotlStore.NAME
2912                        + "=? AND "
2913                        + SQLiteAxolotlStore.FINGERPRINT
2914                        + " =?";
2915        String[] whereArgs = {account.getUuid(), name, fingerprint};
2916        int rows = db.update(SQLiteAxolotlStore.IDENTITIES_TABLENAME, values, where, whereArgs);
2917        if (rows == 0) {
2918            db.insert(SQLiteAxolotlStore.IDENTITIES_TABLENAME, null, values);
2919        }
2920    }
2921
2922    public void storePreVerification(
2923            Account account, String name, String fingerprint, FingerprintStatus status) {
2924        SQLiteDatabase db = this.getWritableDatabase();
2925        ContentValues values = new ContentValues();
2926        values.put(SQLiteAxolotlStore.ACCOUNT, account.getUuid());
2927        values.put(SQLiteAxolotlStore.NAME, name);
2928        values.put(SQLiteAxolotlStore.OWN, 0);
2929        values.put(SQLiteAxolotlStore.FINGERPRINT, fingerprint);
2930        values.putAll(status.toContentValues());
2931        db.insert(SQLiteAxolotlStore.IDENTITIES_TABLENAME, null, values);
2932    }
2933
2934    public FingerprintStatus getFingerprintStatus(Account account, String fingerprint) {
2935        Cursor cursor = getIdentityKeyCursor(account, fingerprint);
2936        final FingerprintStatus status;
2937        if (cursor.getCount() > 0) {
2938            cursor.moveToFirst();
2939            status = FingerprintStatus.fromCursor(cursor);
2940        } else {
2941            status = null;
2942        }
2943        cursor.close();
2944        return status;
2945    }
2946
2947    public boolean setIdentityKeyTrust(
2948            Account account, String fingerprint, FingerprintStatus fingerprintStatus) {
2949        SQLiteDatabase db = this.getWritableDatabase();
2950        return setIdentityKeyTrust(db, account, fingerprint, fingerprintStatus);
2951    }
2952
2953    private boolean setIdentityKeyTrust(
2954            SQLiteDatabase db, Account account, String fingerprint, FingerprintStatus status) {
2955        String[] selectionArgs = {account.getUuid(), fingerprint};
2956        int rows =
2957                db.update(
2958                        SQLiteAxolotlStore.IDENTITIES_TABLENAME,
2959                        status.toContentValues(),
2960                        SQLiteAxolotlStore.ACCOUNT
2961                                + " = ? AND "
2962                                + SQLiteAxolotlStore.FINGERPRINT
2963                                + " = ? ",
2964                        selectionArgs);
2965        return rows == 1;
2966    }
2967
2968    public boolean setIdentityKeyCertificate(
2969            Account account, String fingerprint, X509Certificate x509Certificate) {
2970        SQLiteDatabase db = this.getWritableDatabase();
2971        String[] selectionArgs = {account.getUuid(), fingerprint};
2972        try {
2973            ContentValues values = new ContentValues();
2974            values.put(SQLiteAxolotlStore.CERTIFICATE, x509Certificate.getEncoded());
2975            return db.update(
2976                            SQLiteAxolotlStore.IDENTITIES_TABLENAME,
2977                            values,
2978                            SQLiteAxolotlStore.ACCOUNT
2979                                    + " = ? AND "
2980                                    + SQLiteAxolotlStore.FINGERPRINT
2981                                    + " = ? ",
2982                            selectionArgs)
2983                    == 1;
2984        } catch (CertificateEncodingException e) {
2985            Log.d(Config.LOGTAG, "could not encode certificate");
2986            return false;
2987        }
2988    }
2989
2990    public X509Certificate getIdentityKeyCertifcate(Account account, String fingerprint) {
2991        SQLiteDatabase db = this.getReadableDatabase();
2992        String[] selectionArgs = {account.getUuid(), fingerprint};
2993        String[] colums = {SQLiteAxolotlStore.CERTIFICATE};
2994        String selection =
2995                SQLiteAxolotlStore.ACCOUNT + " = ? AND " + SQLiteAxolotlStore.FINGERPRINT + " = ? ";
2996        Cursor cursor =
2997                db.query(
2998                        SQLiteAxolotlStore.IDENTITIES_TABLENAME,
2999                        colums,
3000                        selection,
3001                        selectionArgs,
3002                        null,
3003                        null,
3004                        null);
3005        if (cursor.getCount() < 1) {
3006            return null;
3007        } else {
3008            cursor.moveToFirst();
3009            byte[] certificate =
3010                    cursor.getBlob(cursor.getColumnIndex(SQLiteAxolotlStore.CERTIFICATE));
3011            cursor.close();
3012            if (certificate == null || certificate.length == 0) {
3013                return null;
3014            }
3015            try {
3016                CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
3017                return (X509Certificate)
3018                        certificateFactory.generateCertificate(
3019                                new ByteArrayInputStream(certificate));
3020            } catch (CertificateException e) {
3021                Log.d(Config.LOGTAG, "certificate exception " + e.getMessage());
3022                return null;
3023            }
3024        }
3025    }
3026
3027    public void storeIdentityKey(
3028            Account account, String name, IdentityKey identityKey, FingerprintStatus status) {
3029        storeIdentityKey(
3030                account,
3031                name,
3032                false,
3033                CryptoHelper.bytesToHex(identityKey.getPublicKey().serialize()),
3034                Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT),
3035                status);
3036    }
3037
3038    public void storeOwnIdentityKeyPair(Account account, IdentityKeyPair identityKeyPair) {
3039        storeIdentityKey(
3040                account,
3041                account.getJid().asBareJid().toString(),
3042                true,
3043                CryptoHelper.bytesToHex(identityKeyPair.getPublicKey().serialize()),
3044                Base64.encodeToString(identityKeyPair.serialize(), Base64.DEFAULT),
3045                FingerprintStatus.createActiveVerified(false));
3046    }
3047
3048    private void recreateAxolotlDb(SQLiteDatabase db) {
3049        Log.d(
3050                Config.LOGTAG,
3051                AxolotlService.LOGPREFIX + " : " + ">>> (RE)CREATING AXOLOTL DATABASE <<<");
3052        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.SESSION_TABLENAME);
3053        db.execSQL(CREATE_SESSIONS_STATEMENT);
3054        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.PREKEY_TABLENAME);
3055        db.execSQL(CREATE_PREKEYS_STATEMENT);
3056        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME);
3057        db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT);
3058        db.execSQL("DROP TABLE IF EXISTS " + SQLiteAxolotlStore.IDENTITIES_TABLENAME);
3059        db.execSQL(CREATE_IDENTITIES_STATEMENT);
3060    }
3061
3062    public void wipeAxolotlDb(Account account) {
3063        String accountName = account.getUuid();
3064        Log.d(
3065                Config.LOGTAG,
3066                AxolotlService.getLogprefix(account)
3067                        + ">>> WIPING AXOLOTL DATABASE FOR ACCOUNT "
3068                        + accountName
3069                        + " <<<");
3070        SQLiteDatabase db = this.getWritableDatabase();
3071        String[] deleteArgs = {accountName};
3072        db.delete(
3073                SQLiteAxolotlStore.SESSION_TABLENAME,
3074                SQLiteAxolotlStore.ACCOUNT + " = ?",
3075                deleteArgs);
3076        db.delete(
3077                SQLiteAxolotlStore.PREKEY_TABLENAME,
3078                SQLiteAxolotlStore.ACCOUNT + " = ?",
3079                deleteArgs);
3080        db.delete(
3081                SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
3082                SQLiteAxolotlStore.ACCOUNT + " = ?",
3083                deleteArgs);
3084        db.delete(
3085                SQLiteAxolotlStore.IDENTITIES_TABLENAME,
3086                SQLiteAxolotlStore.ACCOUNT + " = ?",
3087                deleteArgs);
3088    }
3089
3090    public List<ShortcutService.FrequentContact> getFrequentContacts(final int days) {
3091        final var db = this.getReadableDatabase();
3092        final String SQL =
3093                "select "
3094                        + Conversation.TABLENAME
3095                        + "."
3096                        + Conversation.UUID
3097                        + ","
3098                        + Conversation.TABLENAME
3099                        + "."
3100                        + Conversation.ACCOUNT
3101                        + ","
3102                        + Conversation.TABLENAME
3103                        + "."
3104                        + Conversation.CONTACTJID
3105                        + " from "
3106                        + Conversation.TABLENAME
3107                        + " join "
3108                        + Message.TABLENAME
3109                        + " on conversations.uuid=messages.conversationUuid where"
3110                        + " messages.status!=0 and carbon==0  and conversations.mode=0 and"
3111                        + " messages.timeSent>=? group by conversations.uuid order by count(body)"
3112                        + " desc limit 4;";
3113        String[] whereArgs =
3114                new String[] {
3115                    String.valueOf(System.currentTimeMillis() - (Config.MILLISECONDS_IN_DAY * days))
3116                };
3117        Cursor cursor = db.rawQuery(SQL, whereArgs);
3118        ArrayList<ShortcutService.FrequentContact> contacts = new ArrayList<>();
3119        while (cursor.moveToNext()) {
3120            try {
3121                contacts.add(
3122                        new ShortcutService.FrequentContact(
3123                                cursor.getString(0),
3124                                cursor.getString(1),
3125                                Jid.of(cursor.getString(2))));
3126            } catch (final Exception e) {
3127                Log.e(Config.LOGTAG, "could not create frequent contact", e);
3128            }
3129        }
3130        cursor.close();
3131        return contacts;
3132    }
3133}