void RemoteSync::syncReply(WP::err code)
{
if (code != WP::kOk)
return;
QByteArray data = fServerReply->readAll();
fServerReply = NULL;
IqInStanzaHandler iqHandler(kResult);
SyncPullData syncPullData;
SyncPullHandler *syncPullHandler = new SyncPullHandler(&syncPullData);
iqHandler.addChildHandler(syncPullHandler);
ProtocolInStream inStream(data);
inStream.addHandler(&iqHandler);
inStream.parse();
QString localBranch = fDatabase->branch();
QString localTipCommit = fDatabase->getTip();
QString lastSyncCommit = fDatabase->getLastSyncCommit(fRemoteStorage->getUid(), localBranch);
if (!syncPullHandler->hasBeenHandled() || syncPullData.branch != localBranch) {
// error occured, the server should at least send back the branch name
// TODO better error message
emit syncFinished(WP::kBadValue);
return;
}
if (syncPullData.tip == localTipCommit) {
// done
emit syncFinished(WP::kOk);
return;
}
// see if the server is ahead by checking if we got packages
if (syncPullData.pack.size() != 0) {
fSyncUid = syncPullData.tip;
WP::err error = fDatabase->importPack(syncPullData.pack, lastSyncCommit,
syncPullData.tip);
if (error != WP::kOk) {
emit syncFinished(error);
return;
}
localTipCommit = fDatabase->getTip();
// done? otherwise it was a merge and we have to push our merge
if (localTipCommit == lastSyncCommit) {
emit syncFinished(WP::kOk);
return;
}
}
// we are ahead of the server: push changes to the server
QByteArray pack;
WP::err error = fDatabase->exportPack(pack, lastSyncCommit, localTipCommit, fSyncUid);
if (error != WP::kOk) {
emit syncFinished(error);
return;
}
fSyncUid = localTipCommit;
QByteArray outData;
ProtocolOutStream outStream(&outData);
IqOutStanza *iqStanza = new IqOutStanza(kSet);
outStream.pushStanza(iqStanza);
OutStanza *pushStanza = new OutStanza("sync_push");
pushStanza->addAttribute("branch", localBranch);
pushStanza->addAttribute("start_commit", syncPullData.tip);
pushStanza->addAttribute("last_commit", localTipCommit);
outStream.pushChildStanza(pushStanza);
OutStanza *pushPackStanza = new OutStanza("pack");
pushPackStanza->setText(pack.toBase64());
outStream.pushChildStanza(pushPackStanza);
outStream.flush();
fServerReply = fRemoteConnection->send(outData);
connect(fServerReply, SIGNAL(finished(WP::err)), this, SLOT(syncPushReply(WP::err)));
}
