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package eu.siacs.conversations.services;
import android.util.Log;
import java.math.BigInteger;
import java.util.HashSet;
import java.util.List;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.OnAdvancedStreamFeaturesLoaded;
import eu.siacs.conversations.xmpp.OnIqPacketReceived;
import eu.siacs.conversations.xmpp.jid.Jid;
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
private final XmppConnectionService mXmppConnectionService;
private final HashSet<Query> queries = new HashSet<Query>();
public MessageArchiveService(final XmppConnectionService service) {
this.mXmppConnectionService = service;
}
public void query(final Conversation conversation) {
synchronized (this.queries) {
final Account account = conversation.getAccount();
long start = conversation.getLastMessageReceived();
long end = account.getXmppConnection().getLastSessionEstablished();
if (end - start >= Config.MAX_HISTORY_AGE) {
start = end - Config.MAX_HISTORY_AGE;
}
final Query query = new Query(conversation, start, end);
this.queries.add(query);
IqPacket packet = this.mXmppConnectionService.getIqGenerator().queryMessageArchiveManagement(query);
this.mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
if (packet.getType() == IqPacket.TYPE_ERROR) {
finalizeQuery(query);
}
}
});
}
}
private void finalizeQuery(Query query) {
synchronized (this.queries) {
this.queries.remove(query);
}
query.getConversation().sort();
this.mXmppConnectionService.updateConversationUi();
}
public void processFin(Element fin) {
if (fin == null) {
return;
}
Query query = findQuery(fin.getAttribute("queryid"));
if (query == null) {
return;
}
boolean complete = fin.getAttributeAsBoolean("complete");
Element set = fin.findChild("set","http://jabber.org/protocol/rsm");
Element last = set == null ? null : set.findChild("last");
if (complete || last == null) {
final Account account = query.getConversation().getAccount();
Log.d(Config.LOGTAG,account.getJid().toBareJid().toString()+": completed mam query for "+query.getWith().toString());
this.finalizeQuery(query);
} else {
final Query nextQuery = query.next(last == null ? null : last.getContent());
IqPacket packet = this.mXmppConnectionService.getIqGenerator().queryMessageArchiveManagement(nextQuery);
synchronized (this.queries) {
this.queries.remove(query);
this.queries.add(nextQuery);
}
this.mXmppConnectionService.sendIqPacket(query.getConversation().getAccount(),packet,new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
if (packet.getType() == IqPacket.TYPE_ERROR) {
finalizeQuery(nextQuery);
}
}
});
}
}
private Query findQuery(String id) {
if (id == null) {
return null;
}
synchronized (this.queries) {
for(Query query : this.queries) {
if (query.getQueryId().equals(id)) {
return query;
}
}
return null;
}
}
@Override
public void onAdvancedStreamFeaturesAvailable(Account account) {
if (account.getXmppConnection() != null && account.getXmppConnection().getFeatures().mam()) {
List<Conversation> conversations = mXmppConnectionService.getConversations();
for (Conversation conversation : conversations) {
if (conversation.getMode() == Conversation.MODE_SINGLE && conversation.getAccount() == account) {
this.query(conversation);
}
}
} else {
Log.d(Config.LOGTAG,"no mam available");
}
}
public class Query {
private long start;
private long end;
private Jid with;
private String queryId;
private String after = null;
private Conversation conversation;
public Query(Conversation conversation, long start, long end) {
this.conversation = conversation;
this.with = conversation.getContactJid().toBareJid();
this.start = start;
this.end = end;
this.queryId = new BigInteger(50, mXmppConnectionService.getRNG()).toString(32);
}
public Query next(String after) {
Query query = new Query(this.conversation,this.start,this.end);
query.after = after;
return query;
}
public String getAfter() {
return after;
}
public String getQueryId() {
return queryId;
}
public Jid getWith() {
return with;
}
public long getStart() {
return start;
}
public long getEnd() {
return end;
}
public Conversation getConversation() {
return conversation;
}
}
}
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