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jingle ibb: wait to receive ibb

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previously we signalled succesfull file reception after receiving enough bytes on ibb;
however that causes us to race with the session-info file hash. now the recipient will wait for
<close/> and the sender will make sure to send the session-info before sending close.

closes #3500
This commit is contained in:
Daniel Gultsch 2019-12-05 13:28:08 +01:00
parent 1cf7a2b832
commit 8263fb73e9
1 changed files with 25 additions and 10 deletions
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35
src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java → src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInBandTransport.java
View file

@ -15,7 +15,6 @@ import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.DownloadableFile;
import eu.siacs.conversations.persistance.FileBackend;
import eu.siacs.conversations.services.AbstractConnectionManager;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.OnIqPacketReceived;
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
@ -70,6 +69,7 @@ public class JingleInbandTransport extends JingleTransport {
}
private void sendClose() {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": sending ibb close");
IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
iq.setTo(this.counterpart);
Element close = iq.addChild("close", "http://jabber.org/protocol/ibb");
@ -178,9 +178,9 @@ public class JingleInbandTransport extends JingleTransport {
this.seq++;
connection.updateProgress((int) ((((double) (this.fileSize - this.remainingSize)) / this.fileSize) * 100));
if (this.remainingSize <= 0) {
sendClose();
file.setSha1Sum(digest.digest());
this.onFileTransmissionStatusChanged.onFileTransmitted(file);
sendClose();
fileInputStream.close();
}
} catch (IOException e) {
@ -200,11 +200,7 @@ public class JingleInbandTransport extends JingleTransport {
this.fileOutputStream.write(buffer);
this.digest.update(buffer);
if (this.remainingSize <= 0) {
file.setSha1Sum(digest.digest());
fileOutputStream.flush();
fileOutputStream.close();
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": receive next block nothing remaining");
this.onFileTransmissionStatusChanged.onFileTransmitted(file);
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received last block. waiting for close");
} else {
connection.updateProgress((int) ((((double) (this.fileSize - this.remainingSize)) / this.fileSize) * 100));
}
@ -215,6 +211,19 @@ public class JingleInbandTransport extends JingleTransport {
}
}
private void done() {
try {
file.setSha1Sum(digest.digest());
fileOutputStream.flush();
fileOutputStream.close();
this.onFileTransmissionStatusChanged.onFileTransmitted(file);
} catch (Exception e) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": " + e.getMessage());
FileBackend.close(fileOutputStream);
this.onFileTransmissionStatusChanged.onFileTransferAborted();
}
}
public void deliverPayload(IqPacket packet, Element payload) {
if (payload.getName().equals("open")) {
if (!established) {
@ -235,10 +244,16 @@ public class JingleInbandTransport extends JingleTransport {
this.connected = false;
this.account.getXmppConnection().sendIqPacket(
packet.generateResponse(IqPacket.TYPE.RESULT), null);
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received ibb close");
if (this.remainingSize <= 0) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received ibb close. done");
done();
} else {
Log.d(Config.LOGTAG, payload.toString());
// TODO some sort of exception
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received ibb close with " + this.remainingSize + " remaining");
FileBackend.close(fileOutputStream);
this.onFileTransmissionStatusChanged.onFileTransferAborted();
}
} else {
this.account.getXmppConnection().sendIqPacket(packet.generateResponse(IqPacket.TYPE.ERROR), null);
}
}
}