527 lines
19 KiB
Java
527 lines
19 KiB
Java
package org.thoughtcrime.securesms.database;
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import android.annotation.SuppressLint;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.graphics.Bitmap;
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import android.text.TextUtils;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import com.annimon.stream.Stream;
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import net.sqlcipher.database.SQLiteDatabase;
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import org.thoughtcrime.securesms.database.helpers.SQLCipherOpenHelper;
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import org.thoughtcrime.securesms.recipients.Recipient;
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import org.thoughtcrime.securesms.util.BitmapUtil;
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import org.thoughtcrime.securesms.util.GroupUtil;
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import org.thoughtcrime.securesms.util.Util;
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import org.session.libsignal.libsignal.util.guava.Optional;
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import org.session.libsignal.service.api.messages.SignalServiceAttachmentPointer;
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import org.session.libsignal.service.loki.database.LokiOpenGroupDatabaseProtocol;
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import java.io.Closeable;
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import java.io.IOException;
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import java.security.SecureRandom;
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import java.util.Collections;
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import java.util.LinkedList;
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import java.util.List;
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public class GroupDatabase extends Database implements LokiOpenGroupDatabaseProtocol {
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@SuppressWarnings("unused")
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private static final String TAG = GroupDatabase.class.getSimpleName();
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static final String TABLE_NAME = "groups";
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private static final String ID = "_id";
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static final String GROUP_ID = "group_id";
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private static final String TITLE = "title";
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private static final String MEMBERS = "members";
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private static final String AVATAR = "avatar";
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private static final String AVATAR_ID = "avatar_id";
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private static final String AVATAR_KEY = "avatar_key";
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private static final String AVATAR_CONTENT_TYPE = "avatar_content_type";
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private static final String AVATAR_RELAY = "avatar_relay";
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private static final String AVATAR_DIGEST = "avatar_digest";
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private static final String TIMESTAMP = "timestamp";
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private static final String ACTIVE = "active";
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private static final String MMS = "mms";
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// Loki
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private static final String AVATAR_URL = "avatar_url";
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private static final String ADMINS = "admins";
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public static final String CREATE_TABLE =
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"CREATE TABLE " + TABLE_NAME +
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" (" + ID + " INTEGER PRIMARY KEY, " +
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GROUP_ID + " TEXT, " +
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TITLE + " TEXT, " +
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MEMBERS + " TEXT, " +
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AVATAR + " BLOB, " +
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AVATAR_ID + " INTEGER, " +
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AVATAR_KEY + " BLOB, " +
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AVATAR_CONTENT_TYPE + " TEXT, " +
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AVATAR_RELAY + " TEXT, " +
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TIMESTAMP + " INTEGER, " +
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ACTIVE + " INTEGER DEFAULT 1, " +
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AVATAR_DIGEST + " BLOB, " +
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AVATAR_URL + " TEXT, " +
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ADMINS + " TEXT, " +
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MMS + " INTEGER DEFAULT 0);";
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public static final String[] CREATE_INDEXS = {
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"CREATE UNIQUE INDEX IF NOT EXISTS group_id_index ON " + TABLE_NAME + " (" + GROUP_ID + ");",
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};
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private static final String[] GROUP_PROJECTION = {
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GROUP_ID, TITLE, MEMBERS, AVATAR, AVATAR_ID, AVATAR_KEY, AVATAR_CONTENT_TYPE, AVATAR_RELAY, AVATAR_DIGEST,
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TIMESTAMP, ACTIVE, MMS, AVATAR_URL, ADMINS
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};
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static final List<String> TYPED_GROUP_PROJECTION = Stream.of(GROUP_PROJECTION).map(columnName -> TABLE_NAME + "." + columnName).toList();
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public GroupDatabase(Context context, SQLCipherOpenHelper databaseHelper) {
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super(context, databaseHelper);
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}
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public Optional<GroupRecord> getGroup(String groupId) {
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try (Cursor cursor = databaseHelper.getReadableDatabase().query(TABLE_NAME, null, GROUP_ID + " = ?",
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new String[] {groupId},
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null, null, null))
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{
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if (cursor != null && cursor.moveToNext()) {
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return getGroup(cursor);
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}
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return Optional.absent();
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}
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}
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Optional<GroupRecord> getGroup(Cursor cursor) {
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Reader reader = new Reader(cursor);
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return Optional.fromNullable(reader.getCurrent());
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}
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public boolean isUnknownGroup(String groupId) {
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return !getGroup(groupId).isPresent();
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}
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public Reader getGroupsFilteredByTitle(String constraint) {
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@SuppressLint("Recycle")
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Cursor cursor = databaseHelper.getReadableDatabase().query(TABLE_NAME, null, TITLE + " LIKE ?",
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new String[]{"%" + constraint + "%"},
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null, null, null);
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return new Reader(cursor);
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}
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public String getOrCreateGroupForMembers(List<Address> members, boolean mms, List<Address> admins) {
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Collections.sort(members);
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Collections.sort(admins);
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Cursor cursor = databaseHelper.getReadableDatabase().query(TABLE_NAME, new String[] {GROUP_ID},
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MEMBERS + " = ? AND " + MMS + " = ?",
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new String[] {Address.toSerializedList(members, ','), mms ? "1" : "0"},
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null, null, null);
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try {
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if (cursor != null && cursor.moveToNext()) {
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return cursor.getString(cursor.getColumnIndexOrThrow(GROUP_ID));
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} else {
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String groupId = GroupUtil.getEncodedId(allocateGroupId(), mms);
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create(groupId, null, members, null, null, admins);
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return groupId;
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}
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} finally {
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if (cursor != null) cursor.close();
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}
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}
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public Reader getGroups() {
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@SuppressLint("Recycle")
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Cursor cursor = databaseHelper.getReadableDatabase().query(TABLE_NAME, null, null, null, null, null, null);
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return new Reader(cursor);
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}
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public @NonNull List<Recipient> getGroupMembers(String groupId, boolean includeSelf) {
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List<Address> members = getCurrentMembers(groupId);
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List<Recipient> recipients = new LinkedList<>();
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for (Address member : members) {
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if (!includeSelf && Util.isOwnNumber(context, member))
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continue;
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if (member.isPhone()) {
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recipients.add(Recipient.from(context, member, false));
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}
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}
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return recipients;
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}
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public boolean isClosedGroupMember(String hexEncodedPublicKey) {
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try {
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Address address = Address.fromSerialized(hexEncodedPublicKey);
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Reader reader = DatabaseFactory.getGroupDatabase(context).getGroups();
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GroupRecord record;
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while ((record = reader.getNext()) != null) {
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if (record.isClosedGroup() && record.members.contains(address)) {
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return true;
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}
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}
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return false;
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} catch (Exception e) {
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return false;
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}
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}
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public void create(@NonNull String groupId, @Nullable String title, @NonNull List<Address> members,
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@Nullable SignalServiceAttachmentPointer avatar, @Nullable String relay, @Nullable List<Address> admins)
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{
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Collections.sort(members);
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ContentValues contentValues = new ContentValues();
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contentValues.put(GROUP_ID, groupId);
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contentValues.put(TITLE, title);
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contentValues.put(MEMBERS, Address.toSerializedList(members, ','));
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if (avatar != null) {
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contentValues.put(AVATAR_ID, avatar.getId());
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contentValues.put(AVATAR_KEY, avatar.getKey());
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contentValues.put(AVATAR_CONTENT_TYPE, avatar.getContentType());
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contentValues.put(AVATAR_DIGEST, avatar.getDigest().orNull());
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contentValues.put(AVATAR_URL, avatar.getUrl());
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}
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contentValues.put(AVATAR_RELAY, relay);
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contentValues.put(TIMESTAMP, System.currentTimeMillis());
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contentValues.put(ACTIVE, 1);
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contentValues.put(MMS, GroupUtil.isMmsGroup(groupId));
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if (admins != null) {
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contentValues.put(ADMINS, Address.toSerializedList(admins, ','));
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}
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databaseHelper.getWritableDatabase().insert(TABLE_NAME, null, contentValues);
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Recipient.applyCached(Address.fromSerialized(groupId), recipient -> {
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recipient.setName(title);
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recipient.setGroupAvatarId(avatar != null ? avatar.getId() : null);
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recipient.setParticipants(Stream.of(members).map(memberAddress -> Recipient.from(context, memberAddress, true)).toList());
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});
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notifyConversationListListeners();
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}
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public boolean delete(@NonNull String groupId) {
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int result = databaseHelper.getWritableDatabase().delete(TABLE_NAME, GROUP_ID + " = ?", new String[]{groupId});
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if (result > 0) {
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Recipient.removeCached(Address.fromSerialized(groupId));
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notifyConversationListListeners();
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return true;
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} else {
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return false;
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}
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}
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public void update(String groupId, String title, SignalServiceAttachmentPointer avatar) {
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ContentValues contentValues = new ContentValues();
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if (title != null) contentValues.put(TITLE, title);
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if (avatar != null) {
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contentValues.put(AVATAR_ID, avatar.getId());
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contentValues.put(AVATAR_CONTENT_TYPE, avatar.getContentType());
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contentValues.put(AVATAR_KEY, avatar.getKey());
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contentValues.put(AVATAR_DIGEST, avatar.getDigest().orNull());
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contentValues.put(AVATAR_URL, avatar.getUrl());
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}
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databaseHelper.getWritableDatabase().update(TABLE_NAME, contentValues,
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GROUP_ID + " = ?",
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new String[] {groupId});
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Recipient.applyCached(Address.fromSerialized(groupId), recipient -> {
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recipient.setName(title);
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recipient.setGroupAvatarId(avatar != null ? avatar.getId() : null);
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});
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notifyConversationListListeners();
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}
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@Override
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public void updateTitle(String groupID, String newValue) {
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ContentValues contentValues = new ContentValues();
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contentValues.put(TITLE, newValue);
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databaseHelper.getWritableDatabase().update(TABLE_NAME, contentValues, GROUP_ID + " = ?",
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new String[] {groupID});
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Recipient recipient = Recipient.from(context, Address.fromSerialized(groupID), false);
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recipient.setName(newValue);
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}
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public void updateProfilePicture(String groupID, Bitmap newValue) {
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updateProfilePicture(groupID, BitmapUtil.toByteArray(newValue));
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}
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@Override
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public void updateProfilePicture(String groupID, byte[] newValue) {
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long avatarId;
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if (newValue != null) avatarId = Math.abs(new SecureRandom().nextLong());
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else avatarId = 0;
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ContentValues contentValues = new ContentValues(2);
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contentValues.put(AVATAR, newValue);
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contentValues.put(AVATAR_ID, avatarId);
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databaseHelper.getWritableDatabase().update(TABLE_NAME, contentValues, GROUP_ID + " = ?",
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new String[] {groupID});
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Recipient.applyCached(Address.fromSerialized(groupID), recipient -> recipient.setGroupAvatarId(avatarId == 0 ? null : avatarId));
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}
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public void updateMembers(String groupId, List<Address> members) {
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Collections.sort(members);
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ContentValues contents = new ContentValues();
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contents.put(MEMBERS, Address.toSerializedList(members, ','));
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contents.put(ACTIVE, 1);
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databaseHelper.getWritableDatabase().update(TABLE_NAME, contents, GROUP_ID + " = ?",
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new String[] {groupId});
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Recipient.applyCached(Address.fromSerialized(groupId), recipient -> {
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recipient.setParticipants(Stream.of(members).map(a -> Recipient.from(context, a, false)).toList());
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});
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}
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public void updateAdmins(String groupId, List<Address> admins) {
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Collections.sort(admins);
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ContentValues contents = new ContentValues();
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contents.put(ADMINS, Address.toSerializedList(admins, ','));
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contents.put(ACTIVE, 1);
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databaseHelper.getWritableDatabase().update(TABLE_NAME, contents, GROUP_ID + " = ?", new String[] {groupId});
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}
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public void removeMember(String groupId, Address source) {
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List<Address> currentMembers = getCurrentMembers(groupId);
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currentMembers.remove(source);
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ContentValues contents = new ContentValues();
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contents.put(MEMBERS, Address.toSerializedList(currentMembers, ','));
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databaseHelper.getWritableDatabase().update(TABLE_NAME, contents, GROUP_ID + " = ?",
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new String[] {groupId});
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Recipient.applyCached(Address.fromSerialized(groupId), recipient -> {
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List<Recipient> current = recipient.getParticipants();
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Recipient removal = Recipient.from(context, source, false);
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current.remove(removal);
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recipient.setParticipants(current);
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});
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}
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private List<Address> getCurrentMembers(String groupId) {
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Cursor cursor = null;
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try {
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cursor = databaseHelper.getReadableDatabase().query(TABLE_NAME, new String[] {MEMBERS},
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GROUP_ID + " = ?",
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new String[] {groupId},
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null, null, null);
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if (cursor != null && cursor.moveToFirst()) {
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String serializedMembers = cursor.getString(cursor.getColumnIndexOrThrow(MEMBERS));
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return Address.fromSerializedList(serializedMembers, ',');
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}
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return new LinkedList<>();
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} finally {
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if (cursor != null)
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cursor.close();
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}
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}
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public boolean isActive(String groupId) {
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Optional<GroupRecord> record = getGroup(groupId);
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return record.isPresent() && record.get().isActive();
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}
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public void setActive(String groupId, boolean active) {
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SQLiteDatabase database = databaseHelper.getWritableDatabase();
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ContentValues values = new ContentValues();
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values.put(ACTIVE, active ? 1 : 0);
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database.update(TABLE_NAME, values, GROUP_ID + " = ?", new String[] {groupId});
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}
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public byte[] allocateGroupId() {
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byte[] groupId = new byte[16];
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new SecureRandom().nextBytes(groupId);
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return groupId;
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}
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public boolean hasGroup(@NonNull String groupId) {
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try (Cursor cursor = databaseHelper.getReadableDatabase().rawQuery(
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"SELECT 1 FROM " + TABLE_NAME + " WHERE " + GROUP_ID + " = ? LIMIT 1",
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new String[]{groupId}
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)) {
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return cursor.getCount() > 0;
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}
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}
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public static class Reader implements Closeable {
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private final Cursor cursor;
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public Reader(Cursor cursor) {
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this.cursor = cursor;
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}
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public @Nullable GroupRecord getNext() {
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if (cursor == null || !cursor.moveToNext()) {
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return null;
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}
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return getCurrent();
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}
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public @Nullable GroupRecord getCurrent() {
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if (cursor == null || cursor.getString(cursor.getColumnIndexOrThrow(GROUP_ID)) == null) {
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return null;
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}
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return new GroupRecord(cursor.getString(cursor.getColumnIndexOrThrow(GROUP_ID)),
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cursor.getString(cursor.getColumnIndexOrThrow(TITLE)),
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cursor.getString(cursor.getColumnIndexOrThrow(MEMBERS)),
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cursor.getBlob(cursor.getColumnIndexOrThrow(AVATAR)),
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cursor.getLong(cursor.getColumnIndexOrThrow(AVATAR_ID)),
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cursor.getBlob(cursor.getColumnIndexOrThrow(AVATAR_KEY)),
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cursor.getString(cursor.getColumnIndexOrThrow(AVATAR_CONTENT_TYPE)),
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cursor.getString(cursor.getColumnIndexOrThrow(AVATAR_RELAY)),
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cursor.getInt(cursor.getColumnIndexOrThrow(ACTIVE)) == 1,
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cursor.getBlob(cursor.getColumnIndexOrThrow(AVATAR_DIGEST)),
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cursor.getInt(cursor.getColumnIndexOrThrow(MMS)) == 1,
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cursor.getString(cursor.getColumnIndexOrThrow(AVATAR_URL)),
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cursor.getString(cursor.getColumnIndexOrThrow(ADMINS)));
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}
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@Override
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public void close() {
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if (this.cursor != null)
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this.cursor.close();
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}
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}
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public static class GroupRecord {
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private final String id;
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private final String title;
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private final List<Address> members;
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private final byte[] avatar;
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private final long avatarId;
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private final byte[] avatarKey;
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private final byte[] avatarDigest;
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private final String avatarContentType;
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private final String relay;
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private final boolean active;
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private final boolean mms;
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private final String url;
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private final List<Address> admins;
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public GroupRecord(String id, String title, String members, byte[] avatar,
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long avatarId, byte[] avatarKey, String avatarContentType,
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String relay, boolean active, byte[] avatarDigest, boolean mms, String url, String admins)
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{
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this.id = id;
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this.title = title;
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this.avatar = avatar;
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this.avatarId = avatarId;
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this.avatarKey = avatarKey;
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this.avatarDigest = avatarDigest;
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this.avatarContentType = avatarContentType;
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this.relay = relay;
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this.active = active;
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this.mms = mms;
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this.url = url;
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if (!TextUtils.isEmpty(members)) this.members = Address.fromSerializedList(members, ',');
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else this.members = new LinkedList<>();
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if (!TextUtils.isEmpty(admins)) this.admins = Address.fromSerializedList(admins, ',');
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else this.admins = new LinkedList<>();
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}
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public byte[] getId() {
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try {
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return GroupUtil.getDecodedId(id);
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} catch (IOException ioe) {
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throw new AssertionError(ioe);
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}
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}
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public String getEncodedId() {
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return id;
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}
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public String getTitle() {
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return title;
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}
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public List<Address> getMembers() {
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return members;
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}
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public byte[] getAvatar() {
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return avatar;
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}
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public long getAvatarId() {
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return avatarId;
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}
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public byte[] getAvatarKey() {
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return avatarKey;
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}
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public byte[] getAvatarDigest() {
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return avatarDigest;
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}
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public String getAvatarContentType() {
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return avatarContentType;
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}
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public String getRelay() {
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return relay;
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}
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public boolean isActive() {
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return active;
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}
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public boolean isMms() {
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return mms;
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}
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public boolean isOpenGroup() { return Address.fromSerialized(id).isOpenGroup(); }
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public boolean isRSSFeed() { return Address.fromSerialized(id).isRSSFeed(); }
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public boolean isClosedGroup() { return Address.fromSerialized(id).isClosedGroup(); }
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public String getUrl() { return url; }
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public List<Address> getAdmins() { return admins; }
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}
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}
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