677 lines
25 KiB
Java
677 lines
25 KiB
Java
package eu.siacs.conversations.services;
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import static eu.siacs.conversations.utils.Random.SECURE_RANDOM;
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import android.util.Log;
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import org.jetbrains.annotations.NotNull;
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import java.math.BigInteger;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.R;
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import eu.siacs.conversations.entities.Account;
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import eu.siacs.conversations.entities.Conversation;
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import eu.siacs.conversations.entities.Conversational;
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import eu.siacs.conversations.entities.ReceiptRequest;
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import eu.siacs.conversations.generator.AbstractGenerator;
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import eu.siacs.conversations.xml.Element;
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import eu.siacs.conversations.xmpp.Jid;
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import eu.siacs.conversations.xmpp.OnAdvancedStreamFeaturesLoaded;
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import eu.siacs.conversations.xmpp.mam.MamReference;
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import eu.siacs.conversations.xmpp.stanzas.IqPacket;
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import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
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public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
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private final XmppConnectionService mXmppConnectionService;
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private final HashSet<Query> queries = new HashSet<>();
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private final ArrayList<Query> pendingQueries = new ArrayList<>();
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public enum Version {
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MAM_0("urn:xmpp:mam:0", true),
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MAM_1("urn:xmpp:mam:1", false),
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MAM_2("urn:xmpp:mam:2", false);
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public final boolean legacy;
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public final String namespace;
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Version(String namespace, boolean legacy) {
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this.namespace = namespace;
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this.legacy = legacy;
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}
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public static Version get(Account account) {
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return get(account, null);
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}
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public static Version get(Account account, Conversation conversation) {
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if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
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return get(account.getXmppConnection().getFeatures().getAccountFeatures());
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} else {
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return get(conversation.getMucOptions().getFeatures());
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}
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}
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private static Version get(List<String> features) {
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final Version[] values = values();
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for (int i = values.length - 1; i >= 0; --i) {
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for (String feature : features) {
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if (values[i].namespace.equals(feature)) {
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return values[i];
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}
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}
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}
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return MAM_0;
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}
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public static boolean has(List<String> features) {
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for (String feature : features) {
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for (Version version : values()) {
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if (version.namespace.equals(feature)) {
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return true;
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}
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}
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}
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return false;
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}
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public static Element findResult(MessagePacket packet) {
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for (Version version : values()) {
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Element result = packet.findChild("result", version.namespace);
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if (result != null) {
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return result;
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}
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}
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return null;
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}
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}
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MessageArchiveService(final XmppConnectionService service) {
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this.mXmppConnectionService = service;
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}
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private void catchup(final Account account) {
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synchronized (this.queries) {
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for (Iterator<Query> iterator = this.queries.iterator(); iterator.hasNext(); ) {
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Query query = iterator.next();
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if (query.getAccount() == account) {
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iterator.remove();
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}
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}
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}
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MamReference mamReference = MamReference.max(
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mXmppConnectionService.databaseBackend.getLastMessageReceived(account),
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mXmppConnectionService.databaseBackend.getLastClearDate(account)
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);
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mamReference = MamReference.max(mamReference, mXmppConnectionService.getAutomaticMessageDeletionDate());
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long endCatchup = account.getXmppConnection().getLastSessionEstablished();
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final Query query;
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if (mamReference.getTimestamp() == 0) {
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return;
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} else if (endCatchup - mamReference.getTimestamp() >= Config.MAM_MAX_CATCHUP) {
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long startCatchup = endCatchup - Config.MAM_MAX_CATCHUP;
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List<Conversation> conversations = mXmppConnectionService.getConversations();
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for (Conversation conversation : conversations) {
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if (conversation.getMode() == Conversation.MODE_SINGLE && conversation.getAccount() == account && startCatchup > conversation.getLastMessageTransmitted().getTimestamp()) {
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this.query(conversation, startCatchup, true);
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}
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}
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query = new Query(account, new MamReference(startCatchup), 0);
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} else {
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query = new Query(account, mamReference, 0);
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}
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synchronized (this.queries) {
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this.queries.add(query);
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}
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this.execute(query);
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}
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void catchupMUC(final Conversation conversation) {
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if (conversation.getLastMessageTransmitted().getTimestamp() < 0 && conversation.countMessages() == 0) {
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query(conversation,
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new MamReference(0),
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0,
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true);
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} else {
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query(conversation,
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conversation.getLastMessageTransmitted(),
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0,
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true);
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}
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}
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public Query query(final Conversation conversation) {
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if (conversation.getLastMessageTransmitted().getTimestamp() < 0 && conversation.countMessages() == 0) {
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return query(conversation,
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new MamReference(0),
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System.currentTimeMillis(),
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false);
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} else {
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return query(conversation,
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conversation.getLastMessageTransmitted(),
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conversation.getAccount().getXmppConnection().getLastSessionEstablished(),
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false);
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}
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}
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public boolean isCatchingUp(Conversation conversation) {
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final Account account = conversation.getAccount();
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if (account.getXmppConnection().isWaitingForSmCatchup()) {
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return true;
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} else {
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synchronized (this.queries) {
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for (Query query : this.queries) {
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if (query.getAccount() == account && query.isCatchup() && ((conversation.getMode() == Conversation.MODE_SINGLE && query.getWith() == null) || query.getConversation() == conversation)) {
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return true;
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}
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}
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}
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return false;
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}
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}
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public Query query(final Conversation conversation, long end, boolean allowCatchup) {
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return this.query(conversation, conversation.getLastMessageTransmitted(), end, allowCatchup);
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}
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public Query query(Conversation conversation, MamReference start, long end, boolean allowCatchup) {
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synchronized (this.queries) {
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final Query query;
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final MamReference startActual = MamReference.max(start, mXmppConnectionService.getAutomaticMessageDeletionDate());
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if (start.getTimestamp() == 0) {
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query = new Query(conversation, startActual, end, false);
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query.reference = conversation.getFirstMamReference();
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} else {
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if (allowCatchup) {
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MamReference maxCatchup = MamReference.max(startActual, System.currentTimeMillis() - Config.MAM_MAX_CATCHUP);
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if (maxCatchup.greaterThan(startActual)) {
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Query reverseCatchup = new Query(conversation, startActual, maxCatchup.getTimestamp(), false);
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this.queries.add(reverseCatchup);
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this.execute(reverseCatchup);
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}
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query = new Query(conversation, maxCatchup, end, true);
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} else {
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query = new Query(conversation, startActual, end, false);
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}
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}
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if (end != 0 && start.greaterThan(end)) {
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return null;
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}
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this.queries.add(query);
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this.execute(query);
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return query;
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}
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}
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void executePendingQueries(final Account account) {
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final List<Query> pending = new ArrayList<>();
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synchronized (this.pendingQueries) {
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for (Iterator<Query> iterator = this.pendingQueries.iterator(); iterator.hasNext(); ) {
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Query query = iterator.next();
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if (query.getAccount() == account) {
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pending.add(query);
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iterator.remove();
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}
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}
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}
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for (Query query : pending) {
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this.execute(query);
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}
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}
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private void execute(final Query query) {
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final Account account = query.getAccount();
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if (account.getStatus() == Account.State.ONLINE) {
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final Conversation conversation = query.getConversation();
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if (conversation != null && conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
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throw new IllegalStateException("Attempted to run MAM query for archived conversation");
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}
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Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": running mam query " + query.toString());
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final IqPacket packet = this.mXmppConnectionService.getIqGenerator().queryMessageArchiveManagement(query);
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this.mXmppConnectionService.sendIqPacket(account, packet, (a, p) -> {
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final Element fin = p.findChild("fin", query.version.namespace);
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if (p.getType() == IqPacket.TYPE.TIMEOUT) {
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synchronized (this.queries) {
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this.queries.remove(query);
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if (query.hasCallback()) {
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query.callback(false);
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}
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}
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} else if (p.getType() == IqPacket.TYPE.RESULT && fin != null) {
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final boolean running;
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synchronized (this.queries) {
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running = this.queries.contains(query);
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}
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if (running) {
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processFin(query, fin);
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} else {
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Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring MAM iq result because query had been killed");
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}
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} else if (p.getType() == IqPacket.TYPE.RESULT && query.isLegacy()) {
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//do nothing
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} else {
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Log.d(Config.LOGTAG, a.getJid().asBareJid().toString() + ": error executing mam: " + p.toString());
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try {
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finalizeQuery(query, true);
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} catch (final IllegalStateException e) {
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//ignored
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}
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}
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});
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} else {
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synchronized (this.pendingQueries) {
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this.pendingQueries.add(query);
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}
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}
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}
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private void finalizeQuery(final Query query, boolean done) {
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synchronized (this.queries) {
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if (!this.queries.remove(query)) {
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throw new IllegalStateException("Unable to remove query from queries");
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}
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}
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final Conversation conversation = query.getConversation();
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if (conversation != null) {
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conversation.sort();
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conversation.setHasMessagesLeftOnServer(!done);
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} else {
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for (Conversation tmp : this.mXmppConnectionService.getConversations()) {
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if (tmp.getAccount() == query.getAccount()) {
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tmp.sort();
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}
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}
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}
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if (query.hasCallback()) {
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query.callback(done);
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} else {
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this.mXmppConnectionService.updateConversationUi();
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}
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}
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boolean inCatchup(Account account) {
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synchronized (this.queries) {
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for (Query query : queries) {
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if (query.account == account && query.isCatchup() && query.getWith() == null) {
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return true;
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}
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}
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}
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return false;
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}
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public boolean isCatchupInProgress(Conversation conversation) {
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synchronized (this.queries) {
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for (Query query : queries) {
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if (query.account == conversation.getAccount() && query.isCatchup()) {
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final Jid with = query.getWith() == null ? null : query.getWith().asBareJid();
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if ((conversation.getMode() == Conversational.MODE_SINGLE && with == null) || (conversation.getJid().asBareJid().equals(with))) {
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return true;
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}
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}
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}
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}
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return false;
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}
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boolean queryInProgress(Conversation conversation, XmppConnectionService.OnMoreMessagesLoaded callback) {
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synchronized (this.queries) {
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for (Query query : queries) {
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if (query.conversation == conversation) {
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if (!query.hasCallback() && callback != null) {
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query.setCallback(callback);
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}
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return true;
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}
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}
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return false;
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}
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}
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public boolean queryInProgress(Conversation conversation) {
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return queryInProgress(conversation, null);
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}
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public void processFinLegacy(Element fin, Jid from) {
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Query query = findQuery(fin.getAttribute("queryid"));
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if (query != null && query.validFrom(from)) {
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processFin(query, fin);
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}
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}
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private void processFin(Query query, Element fin) {
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boolean complete = fin.getAttributeAsBoolean("complete");
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Element set = fin.findChild("set", "http://jabber.org/protocol/rsm");
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Element last = set == null ? null : set.findChild("last");
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String count = set == null ? null : set.findChildContent("count");
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Element first = set == null ? null : set.findChild("first");
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Element relevant = query.getPagingOrder() == PagingOrder.NORMAL ? last : first;
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boolean abort = (!query.isCatchup() && query.getTotalCount() >= Config.PAGE_SIZE) || query.getTotalCount() >= Config.MAM_MAX_MESSAGES;
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if (query.getConversation() != null) {
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query.getConversation().setFirstMamReference(first == null ? null : first.getContent());
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}
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if (complete || relevant == null || abort) {
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//TODO: FIX done logic to look at complete. using count is probably unreliable because it can be ommited and doesn’t work with paging.
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boolean done;
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if (query.isCatchup()) {
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done = false;
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} else {
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if (count != null) {
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try {
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done = Integer.parseInt(count) <= query.getTotalCount();
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} catch (NumberFormatException e) {
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done = false;
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}
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} else {
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done = query.getTotalCount() == 0;
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}
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}
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done = done || (query.getActualMessageCount() == 0 && !query.isCatchup());
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this.finalizeQuery(query, done);
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Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": finished mam after " + query.getTotalCount() + "(" + query.getActualMessageCount() + ") messages. messages left=" + !done + " count=" + count);
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if (query.isCatchup() && query.getActualMessageCount() > 0) {
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mXmppConnectionService.getNotificationService().finishBacklog(true, query.getAccount());
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}
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processPostponed(query);
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} else {
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final Query nextQuery;
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if (query.getPagingOrder() == PagingOrder.NORMAL) {
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nextQuery = query.next(last == null ? null : last.getContent());
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} else {
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nextQuery = query.prev(first == null ? null : first.getContent());
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}
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this.execute(nextQuery);
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this.finalizeQuery(query, false);
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synchronized (this.queries) {
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this.queries.add(nextQuery);
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}
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}
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}
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void kill(final Conversation conversation) {
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final ArrayList<Query> toBeKilled = new ArrayList<>();
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synchronized (this.pendingQueries) {
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for (final Iterator<Query> iterator = this.pendingQueries.iterator(); iterator.hasNext(); ) {
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final Query query = iterator.next();
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if (query.getConversation() == conversation) {
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iterator.remove();
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Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": killed pending MAM query for archived conversation");
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}
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}
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}
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synchronized (this.queries) {
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for (final Query q : queries) {
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if (q.conversation == conversation) {
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toBeKilled.add(q);
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}
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}
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}
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for (final Query q : toBeKilled) {
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kill(q);
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}
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}
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private void kill(Query query) {
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Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": killing mam query prematurely");
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query.callback = null;
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this.finalizeQuery(query, false);
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if (query.isCatchup() && query.getActualMessageCount() > 0) {
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mXmppConnectionService.getNotificationService().finishBacklog(true, query.getAccount());
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}
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this.processPostponed(query);
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}
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private void processPostponed(Query query) {
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query.account.getAxolotlService().processPostponed();
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query.pendingReceiptRequests.removeAll(query.receiptRequests);
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Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": found " + query.pendingReceiptRequests.size() + " pending receipt requests");
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Iterator<ReceiptRequest> iterator = query.pendingReceiptRequests.iterator();
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while (iterator.hasNext()) {
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ReceiptRequest rr = iterator.next();
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mXmppConnectionService.sendMessagePacket(query.account, mXmppConnectionService.getMessageGenerator().received(query.account, rr.getJid(), rr.getId()));
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iterator.remove();
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}
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}
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public Query findQuery(String id) {
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if (id == null) {
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return null;
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}
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synchronized (this.queries) {
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for (Query query : this.queries) {
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if (query.getQueryId().equals(id)) {
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return query;
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}
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}
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return null;
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}
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}
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@Override
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public void onAdvancedStreamFeaturesAvailable(Account account) {
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if (account.getXmppConnection() != null && account.getXmppConnection().getFeatures().mam()) {
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this.catchup(account);
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}
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}
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public enum PagingOrder {
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NORMAL,
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REVERSE
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}
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public class Query {
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private HashSet<ReceiptRequest> pendingReceiptRequests = new HashSet<>();
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private HashSet<ReceiptRequest> receiptRequests = new HashSet<>();
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private int totalCount = 0;
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private int actualCount = 0;
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private int actualInThisQuery = 0;
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private long start;
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private final long end;
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private final String queryId;
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private String reference = null;
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private final Account account;
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private Conversation conversation;
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private PagingOrder pagingOrder = PagingOrder.NORMAL;
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private XmppConnectionService.OnMoreMessagesLoaded callback = null;
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private boolean catchup = true;
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public final Version version;
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Query(Conversation conversation, MamReference start, long end, boolean catchup) {
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this(conversation.getAccount(), Version.get(conversation.getAccount(), conversation), catchup ? start : start.timeOnly(), end);
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this.conversation = conversation;
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this.pagingOrder = catchup ? PagingOrder.NORMAL : PagingOrder.REVERSE;
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this.catchup = catchup;
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}
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Query(Account account, MamReference start, long end) {
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this(account, Version.get(account), start, end);
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}
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Query(Account account, Version version, MamReference start, long end) {
|
||
this.account = account;
|
||
if (start.getReference() != null) {
|
||
this.reference = start.getReference();
|
||
} else {
|
||
this.start = start.getTimestamp();
|
||
}
|
||
this.end = end;
|
||
this.queryId = new BigInteger(50, SECURE_RANDOM).toString(32);
|
||
this.version = version;
|
||
}
|
||
|
||
private Query page(String reference) {
|
||
Query query = new Query(this.account, this.version, new MamReference(this.start, reference), this.end);
|
||
query.conversation = conversation;
|
||
query.totalCount = totalCount;
|
||
query.actualCount = actualCount;
|
||
query.pendingReceiptRequests = pendingReceiptRequests;
|
||
query.receiptRequests = receiptRequests;
|
||
query.callback = callback;
|
||
query.catchup = catchup;
|
||
return query;
|
||
}
|
||
|
||
public void removePendingReceiptRequest(ReceiptRequest receiptRequest) {
|
||
if (!this.pendingReceiptRequests.remove(receiptRequest)) {
|
||
this.receiptRequests.add(receiptRequest);
|
||
}
|
||
}
|
||
|
||
public void addPendingReceiptRequest(ReceiptRequest receiptRequest) {
|
||
this.pendingReceiptRequests.add(receiptRequest);
|
||
}
|
||
|
||
public boolean isLegacy() {
|
||
return version.legacy;
|
||
}
|
||
|
||
public boolean safeToExtractTrueCounterpart() {
|
||
return muc() && !isLegacy();
|
||
}
|
||
|
||
public Query next(String reference) {
|
||
Query query = page(reference);
|
||
query.pagingOrder = PagingOrder.NORMAL;
|
||
return query;
|
||
}
|
||
|
||
Query prev(String reference) {
|
||
Query query = page(reference);
|
||
query.pagingOrder = PagingOrder.REVERSE;
|
||
return query;
|
||
}
|
||
|
||
public String getReference() {
|
||
return reference;
|
||
}
|
||
|
||
public PagingOrder getPagingOrder() {
|
||
return this.pagingOrder;
|
||
}
|
||
|
||
public String getQueryId() {
|
||
return queryId;
|
||
}
|
||
|
||
public Jid getWith() {
|
||
return conversation == null ? null : conversation.getJid().asBareJid();
|
||
}
|
||
|
||
public boolean muc() {
|
||
return conversation != null && conversation.getMode() == Conversation.MODE_MULTI;
|
||
}
|
||
|
||
public long getStart() {
|
||
return start;
|
||
}
|
||
|
||
public boolean isCatchup() {
|
||
return catchup;
|
||
}
|
||
|
||
public void setCallback(XmppConnectionService.OnMoreMessagesLoaded callback) {
|
||
this.callback = callback;
|
||
}
|
||
|
||
public void callback(boolean done) {
|
||
if (this.callback != null) {
|
||
this.callback.onMoreMessagesLoaded(actualCount, conversation);
|
||
if (done) {
|
||
this.callback.informUser(R.string.no_more_history_on_server);
|
||
}
|
||
}
|
||
}
|
||
|
||
public long getEnd() {
|
||
return end;
|
||
}
|
||
|
||
public Conversation getConversation() {
|
||
return conversation;
|
||
}
|
||
|
||
public Account getAccount() {
|
||
return this.account;
|
||
}
|
||
|
||
public void incrementMessageCount() {
|
||
this.totalCount++;
|
||
}
|
||
|
||
public void incrementActualMessageCount() {
|
||
this.actualInThisQuery++;
|
||
this.actualCount++;
|
||
}
|
||
|
||
int getTotalCount() {
|
||
return this.totalCount;
|
||
}
|
||
|
||
int getActualMessageCount() {
|
||
return this.actualCount;
|
||
}
|
||
|
||
public int getActualInThisQuery() {
|
||
return this.actualInThisQuery;
|
||
}
|
||
|
||
public boolean validFrom(Jid from) {
|
||
if (muc()) {
|
||
return getWith().equals(from);
|
||
} else {
|
||
return (from == null) || account.getJid().asBareJid().equals(from.asBareJid());
|
||
}
|
||
}
|
||
|
||
@NotNull
|
||
@Override
|
||
public String toString() {
|
||
StringBuilder builder = new StringBuilder();
|
||
if (this.muc()) {
|
||
builder.append("to=");
|
||
builder.append(this.getWith().toString());
|
||
} else {
|
||
builder.append("with=");
|
||
if (this.getWith() == null) {
|
||
builder.append("*");
|
||
} else {
|
||
builder.append(getWith().toString());
|
||
}
|
||
}
|
||
if (this.start != 0) {
|
||
builder.append(", start=");
|
||
builder.append(AbstractGenerator.getTimestamp(this.start));
|
||
}
|
||
if (this.end != 0) {
|
||
builder.append(", end=");
|
||
builder.append(AbstractGenerator.getTimestamp(this.end));
|
||
}
|
||
builder.append(", order=").append(pagingOrder.toString());
|
||
if (this.reference != null) {
|
||
if (this.pagingOrder == PagingOrder.NORMAL) {
|
||
builder.append(", after=");
|
||
} else {
|
||
builder.append(", before=");
|
||
}
|
||
builder.append(this.reference);
|
||
}
|
||
builder.append(", catchup=").append(catchup);
|
||
builder.append(", ns=").append(version.namespace);
|
||
return builder.toString();
|
||
}
|
||
|
||
boolean hasCallback() {
|
||
return this.callback != null;
|
||
}
|
||
}
|
||
}
|