1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
|
package de.pixart.messenger.services;
import android.util.Log;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import de.pixart.messenger.Config;
import de.pixart.messenger.R;
import de.pixart.messenger.entities.Account;
import de.pixart.messenger.entities.Conversation;
import de.pixart.messenger.generator.AbstractGenerator;
import de.pixart.messenger.utils.Namespace;
import de.pixart.messenger.xml.Element;
import de.pixart.messenger.xmpp.OnAdvancedStreamFeaturesLoaded;
import de.pixart.messenger.xmpp.OnIqPacketReceived;
import de.pixart.messenger.xmpp.jid.Jid;
import de.pixart.messenger.xmpp.mam.MamReference;
import de.pixart.messenger.xmpp.stanzas.IqPacket;
public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
private final XmppConnectionService mXmppConnectionService;
private final HashSet<Query> queries = new HashSet<>();
private final ArrayList<Query> pendingQueries = new ArrayList<>();
public enum PagingOrder {
NORMAL,
REVERSE
}
public MessageArchiveService(final XmppConnectionService service) {
this.mXmppConnectionService = service;
}
private void catchup(final Account account) {
synchronized (this.queries) {
for (Iterator<Query> iterator = this.queries.iterator(); iterator.hasNext(); ) {
Query query = iterator.next();
if (query.getAccount() == account) {
iterator.remove();
}
}
}
MamReference mamReference = MamReference.max(
mXmppConnectionService.databaseBackend.getLastMessageReceived(account),
mXmppConnectionService.databaseBackend.getLastClearDate(account)
);
mamReference = MamReference.max(mamReference, mXmppConnectionService.getAutomaticMessageDeletionDate());
long endCatchup = account.getXmppConnection().getLastSessionEstablished();
final Query query;
if (mamReference.getTimestamp() == 0) {
return;
} else if (endCatchup - mamReference.getTimestamp() >= Config.MAM_MAX_CATCHUP) {
long startCatchup = endCatchup - Config.MAM_MAX_CATCHUP;
List<Conversation> conversations = mXmppConnectionService.getConversations();
for (Conversation conversation : conversations) {
if (conversation.getMode() == Conversation.MODE_SINGLE && conversation.getAccount() == account && startCatchup > conversation.getLastMessageTransmitted().getTimestamp()) {
this.query(conversation, startCatchup, true);
}
}
query = new Query(account, new MamReference(startCatchup), endCatchup);
} else {
query = new Query(account, mamReference, endCatchup);
}
synchronized (this.queries) {
this.queries.add(query);
}
this.execute(query);
}
public void catchupMUC(final Conversation conversation) {
if (conversation.getLastMessageTransmitted().getTimestamp() < 0 && conversation.countMessages() == 0) {
query(conversation,
new MamReference(0),
System.currentTimeMillis(),
true);
} else {
query(conversation,
conversation.getLastMessageTransmitted(),
System.currentTimeMillis(),
true);
}
}
public Query query(final Conversation conversation) {
if (conversation.getLastMessageTransmitted().getTimestamp() < 0 && conversation.countMessages() == 0) {
return query(conversation,
new MamReference(0),
System.currentTimeMillis(),
false);
} else {
return query(conversation,
conversation.getLastMessageTransmitted(),
conversation.getAccount().getXmppConnection().getLastSessionEstablished(),
false);
}
}
public boolean isCatchingUp(Conversation conversation) {
final Account account = conversation.getAccount();
if (account.getXmppConnection().isWaitingForSmCatchup()) {
return true;
} else {
synchronized (this.queries) {
for (Query query : this.queries) {
if (query.getAccount() == account && query.isCatchup() && ((conversation.getMode() == Conversation.MODE_SINGLE && query.getWith() == null) || query.getConversation() == conversation)) {
return true;
}
}
}
return false;
}
}
public Query query(final Conversation conversation, long end, boolean allowCatchup) {
return this.query(conversation, conversation.getLastMessageTransmitted(), end, allowCatchup);
}
public Query query(Conversation conversation, MamReference start, long end, boolean allowCatchup) {
synchronized (this.queries) {
final Query query;
final MamReference startActual = MamReference.max(start, mXmppConnectionService.getAutomaticMessageDeletionDate());
if (start.getTimestamp() == 0) {
query = new Query(conversation, startActual, end, false);
query.reference = conversation.getFirstMamReference();
} else {
if (allowCatchup) {
MamReference maxCatchup = MamReference.max(startActual, System.currentTimeMillis() - Config.MAM_MAX_CATCHUP);
if (maxCatchup.greaterThan(startActual)) {
Query reverseCatchup = new Query(conversation, startActual, maxCatchup.getTimestamp(), false);
this.queries.add(reverseCatchup);
this.execute(reverseCatchup);
}
query = new Query(conversation, maxCatchup, end, allowCatchup);
} else {
query = new Query(conversation, startActual, end, false);
}
}
if (start.greaterThan(end)) {
return null;
}
this.queries.add(query);
this.execute(query);
return query;
}
}
public void executePendingQueries(final Account account) {
List<Query> pending = new ArrayList<>();
synchronized (this.pendingQueries) {
for (Iterator<Query> iterator = this.pendingQueries.iterator(); iterator.hasNext(); ) {
Query query = iterator.next();
if (query.getAccount() == account) {
pending.add(query);
iterator.remove();
}
}
}
for (Query query : pending) {
this.execute(query);
}
}
private void execute(final Query query) {
final Account account = query.getAccount();
if (account.getStatus() == Account.State.ONLINE) {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": running mam query " + query.toString());
IqPacket packet = this.mXmppConnectionService.getIqGenerator().queryMessageArchiveManagement(query);
this.mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
Element fin = packet.findChild("fin", Namespace.MAM);
if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
synchronized (MessageArchiveService.this.queries) {
MessageArchiveService.this.queries.remove(query);
if (query.hasCallback()) {
query.callback(false);
}
}
} else if (packet.getType() == IqPacket.TYPE.RESULT && fin != null) {
processFin(fin);
} else if (packet.getType() == IqPacket.TYPE.RESULT && query.isLegacy()) {
//do nothing
} else {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": error executing mam: " + packet.toString());
finalizeQuery(query, true);
}
}
});
} else {
synchronized (this.pendingQueries) {
this.pendingQueries.add(query);
}
}
}
private void finalizeQuery(Query query, boolean done) {
synchronized (this.queries) {
this.queries.remove(query);
}
final Conversation conversation = query.getConversation();
if (conversation != null) {
conversation.sort();
conversation.setHasMessagesLeftOnServer(!done);
} else {
for (Conversation tmp : this.mXmppConnectionService.getConversations()) {
if (tmp.getAccount() == query.getAccount()) {
tmp.sort();
}
}
}
if (query.hasCallback()) {
query.callback(done);
} else {
this.mXmppConnectionService.updateConversationUi();
}
}
public boolean queryInProgress(Conversation conversation, XmppConnectionService.OnMoreMessagesLoaded callback) {
synchronized (this.queries) {
for (Query query : queries) {
if (query.conversation == conversation) {
if (!query.hasCallback() && callback != null) {
query.setCallback(callback);
}
return true;
}
}
return false;
}
}
public boolean queryInProgress(Conversation conversation) {
return queryInProgress(conversation, null);
}
public void processFinLegacy(Element fin, Jid from) {
Query query = findQuery(fin.getAttribute("queryid"));
if (query != null && query.validFrom(from)) {
processFin(fin);
}
}
public void processFin(Element fin) {
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");
Element first = set == null ? null : set.findChild("first");
Element relevant = query.getPagingOrder() == PagingOrder.NORMAL ? last : first;
boolean abort = (!query.isCatchup() && query.getTotalCount() >= Config.PAGE_SIZE) || query.getTotalCount() >= Config.MAM_MAX_MESSAGES;
if (query.getConversation() != null) {
query.getConversation().setFirstMamReference(first == null ? null : first.getContent());
}
if (complete || relevant == null || abort) {
final boolean done = (complete || query.getActualMessageCount() == 0) && !query.isCatchup();
this.finalizeQuery(query, done);
Log.d(Config.LOGTAG, query.getAccount().getJid().toBareJid() + ": finished mam after " + query.getTotalCount() + "(" + query.getActualMessageCount() + ") messages. messages left=" + Boolean.toString(!done));
if (query.isCatchup() && query.getActualMessageCount() > 0) {
mXmppConnectionService.getNotificationService().finishBacklog(true,query.getAccount());
}
} else {
final Query nextQuery;
if (query.getPagingOrder() == PagingOrder.NORMAL) {
nextQuery = query.next(last == null ? null : last.getContent());
} else {
nextQuery = query.prev(first == null ? null : first.getContent());
}
this.execute(nextQuery);
this.finalizeQuery(query, false);
synchronized (this.queries) {
this.queries.add(nextQuery);
}
}
}
public 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()) {
this.catchup(account);
}
}
public class Query {
private int totalCount = 0;
private int actualCount = 0;
private long start;
private long end;
private String queryId;
private String reference = null;
private Account account;
private Conversation conversation;
private PagingOrder pagingOrder = PagingOrder.NORMAL;
private XmppConnectionService.OnMoreMessagesLoaded callback = null;
private boolean catchup = true;
public Query(Conversation conversation, MamReference start, long end, boolean catchup) {
this(conversation.getAccount(), catchup ? start : start.timeOnly(), end);
this.conversation = conversation;
this.pagingOrder = catchup ? PagingOrder.NORMAL : PagingOrder.REVERSE;
this.catchup = catchup;
}
public Query(Account account, 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, mXmppConnectionService.getRNG()).toString(32);
}
private Query page(String reference) {
Query query = new Query(this.account, new MamReference(this.start, reference), this.end);
query.conversation = conversation;
query.totalCount = totalCount;
query.actualCount = actualCount;
query.callback = callback;
query.catchup = catchup;
return query;
}
public boolean isLegacy() {
if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
return account.getXmppConnection().getFeatures().mamLegacy();
} else {
return conversation.getMucOptions().mamLegacy();
}
}
public boolean safeToExtractTrueCounterpart() {
return muc() && !isLegacy();
}
public Query next(String reference) {
Query query = page(reference);
query.pagingOrder = PagingOrder.NORMAL;
return query;
}
public 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().toBareJid();
}
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.actualCount++;
}
public int getTotalCount() {
return this.totalCount;
}
public int getActualMessageCount() {
return this.actualCount;
}
public boolean validFrom(Jid from) {
if (muc()) {
return getWith().equals(from);
} else {
return (from == null) || account.getJid().toBareJid().equals(from.toBareJid());
}
}
@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));
}
builder.append(", end=");
builder.append(AbstractGenerator.getTimestamp(this.end));
builder.append(", order="+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="+Boolean.toString(catchup));
return builder.toString();
}
public boolean hasCallback() {
return this.callback != null;
}
}
}
|