static bool RemoteSendReceiveStringList(const QString &host, QStringList &strlist)
{
bool ok = false;
if (gCoreContext->IsMasterBackend())
{
// since the master backend cannot connect back around to
// itself, and the libraries do not have access to the list
// of connected slave backends to query an existing connection
// start up a new temporary connection directly to the slave
// backend to query the file list
QString ann = QString("ANN Playback %1 0")
.arg(gCoreContext->GetHostName());
QString addr = gCoreContext->GetBackendServerIP(host);
int port = gCoreContext->GetBackendServerPort(host);
bool mismatch = false;
MythSocket *sock = gCoreContext->ConnectCommandSocket(
addr, port, ann, &mismatch);
if (sock)
{
ok = sock->SendReceiveStringList(strlist);
sock->DecrRef();
}
else
strlist.clear();
}
else
ok = gCoreContext->SendReceiveStringList(strlist);
return ok;
}
bool RemoteGetFileList(QString host, QString path, QStringList* list,
QString sgroup, bool fileNamesOnly)
{
// Make sure the list is empty when we get started
list->clear();
if (sgroup.isEmpty())
sgroup = "Videos";
*list << "QUERY_SG_GETFILELIST";
*list << host;
*list << StorageGroup::GetGroupToUse(host, sgroup);
*list << path;
*list << QString::number(fileNamesOnly);
bool ok = false;
if (gCoreContext->IsMasterBackend())
{
// since the master backend cannot connect back around to
// itself, and the libraries do not have access to the list
// of connected slave backends to query an existing connection
// start up a new temporary connection directly to the slave
// backend to query the file list
QString ann = QString("ANN Playback %1 0")
.arg(gCoreContext->GetHostName());
QString addr = gCoreContext->GetBackendServerIP(host);
int port = gCoreContext->GetBackendServerPort(host);
bool mismatch = false;
MythSocket *sock = gCoreContext->ConnectCommandSocket(
addr, port, ann, &mismatch);
if (sock)
{
ok = sock->SendReceiveStringList(*list);
sock->DecrRef();
}
else
list->clear();
}
else
ok = gCoreContext->SendReceiveStringList(*list);
// Should the SLAVE UNREACH test be here ?
return ok;
}
MythSocket *RemoteFile::openSocket(bool control)
{
QUrl qurl(path);
QString dir;
QString host = qurl.host();
int port = qurl.port();
dir = qurl.path();
if (qurl.hasQuery())
#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
dir += "?" + QUrl::fromPercentEncoding(
qurl.query(QUrl::FullyEncoded).toLocal8Bit());
#else
dir += "?" + QUrl::fromPercentEncoding(qurl.encodedQuery());
#endif
if (qurl.hasFragment())
dir += "#" + qurl.fragment();
QString sgroup = qurl.userName();
MythSocket *lsock = new MythSocket();
QString stype = (control) ? "control socket" : "file data socket";
QString loc = QString("RemoteFile::openSocket(%1): ").arg(stype);
if (port <= 0)
{
port = GetMythDB()->GetSettingOnHost("BackendServerPort", host).toInt();
// if we still have no port use the default
if (port <= 0)
port = 6543;
}
if (!lsock->ConnectToHost(host, port))
{
LOG(VB_GENERAL, LOG_ERR, loc +
QString("Could not connect to server %1:%2") .arg(host).arg(port));
lsock->DecrRef();
return NULL;
}
QString hostname = GetMythDB()->GetHostName();
QStringList strlist;
#ifndef IGNORE_PROTO_VER_MISMATCH
if (!gCoreContext->CheckProtoVersion(lsock))
{
LOG(VB_GENERAL, LOG_ERR, loc +
QString("Failed validation to server %1:%2").arg(host).arg(port));
lsock->DecrRef();
return NULL;
}
#endif
if (control)
{
strlist.append(QString("ANN Playback %1 %2").arg(hostname).arg(false));
if (!lsock->SendReceiveStringList(strlist))
{
LOG(VB_GENERAL, LOG_ERR, loc +
QString("Could not read string list from server %1:%2")
.arg(host).arg(port));
lsock->DecrRef();
return NULL;
}
}
else
{
strlist.push_back(QString("ANN FileTransfer %1 %2 %3 %4")
.arg(hostname).arg(writemode)
.arg(usereadahead).arg(timeout_ms));
strlist << QString("%1").arg(dir);
strlist << sgroup;
QStringList::const_iterator it = possibleauxfiles.begin();
for (; it != possibleauxfiles.end(); ++it)
strlist << *it;
if (!lsock->SendReceiveStringList(strlist))
{
LOG(VB_GENERAL, LOG_ERR, loc +
QString("Did not get proper response from %1:%2")
.arg(host).arg(port));
strlist.clear();
strlist.push_back("ERROR");
strlist.push_back("invalid response");
}
if (strlist.size() >= 3)
{
it = strlist.begin();
++it;
recordernum = (*it).toInt();
++it;
filesize = (*(it)).toLongLong();
++it;
for (; it != strlist.end(); ++it)
auxfiles << *it;
}
else if (0 < strlist.size() && strlist.size() < 3 &&
strlist[0] != "ERROR")
{
LOG(VB_GENERAL, LOG_ERR, loc +
QString("Did not get proper response from %1:%2")
.arg(host).arg(port));
strlist.clear();
strlist.push_back("ERROR");
strlist.push_back("invalid response");
}
}
if (strlist.empty() || strlist[0] == "ERROR")
{
lsock->DecrRef();
lsock = NULL;
if (strlist.empty())
{
LOG(VB_GENERAL, LOG_ERR, loc + "Failed to open socket, timeout");
}
else
{
LOG(VB_GENERAL, LOG_ERR, loc + "Failed to open socket" +
((strlist.size() >= 2) ?
QString(", error was %1").arg(strlist[1]) :
QString(", remote error")));
}
}
return lsock;
}
int connect_to_master(void)
{
MythSocket *tempMonitorConnection = new MythSocket();
if (tempMonitorConnection->ConnectToHost(
gCoreContext->GetMasterServerIP(),
gCoreContext->GetMasterServerPort()))
{
if (!gCoreContext->CheckProtoVersion(tempMonitorConnection))
{
LOG(VB_GENERAL, LOG_ERR, "Master backend is incompatible with "
"this backend.\nCannot become a slave.");
tempMonitorConnection->DecrRef();
return GENERIC_EXIT_CONNECT_ERROR;
}
QStringList tempMonitorDone("DONE");
QStringList tempMonitorAnnounce(QString("ANN Monitor %1 0")
.arg(gCoreContext->GetHostName()));
tempMonitorConnection->SendReceiveStringList(tempMonitorAnnounce);
if (tempMonitorAnnounce.empty() ||
tempMonitorAnnounce[0] == "ERROR")
{
tempMonitorConnection->DecrRef();
tempMonitorConnection = NULL;
if (tempMonitorAnnounce.empty())
{
LOG(VB_GENERAL, LOG_ERR, LOC +
"Failed to open event socket, timeout");
}
else
{
LOG(VB_GENERAL, LOG_ERR, LOC +
"Failed to open event socket" +
((tempMonitorAnnounce.size() >= 2) ?
QString(", error was %1").arg(tempMonitorAnnounce[1]) :
QString(", remote error")));
}
}
QStringList timeCheck;
if (tempMonitorConnection)
{
timeCheck.push_back("QUERY_TIME_ZONE");
tempMonitorConnection->SendReceiveStringList(timeCheck);
tempMonitorConnection->WriteStringList(tempMonitorDone);
}
if (timeCheck.size() < 3)
{
if (tempMonitorConnection)
tempMonitorConnection->DecrRef();
return GENERIC_EXIT_SOCKET_ERROR;
}
QDateTime our_time = MythDate::current();
QDateTime master_time = MythDate::fromString(timeCheck[2]);
int timediff = abs(our_time.secsTo(master_time));
if (timediff > 300)
{
LOG(VB_GENERAL, LOG_ERR,
QString("Current time on the master backend differs by "
"%1 seconds from time on this system. Exiting.")
.arg(timediff));
if (tempMonitorConnection)
tempMonitorConnection->DecrRef();
return GENERIC_EXIT_INVALID_TIME;
}
if (timediff > 20)
{
LOG(VB_GENERAL, LOG_WARNING,
QString("Time difference between the master "
"backend and this system is %1 seconds.")
.arg(timediff));
}
}
if (tempMonitorConnection)
tempMonitorConnection->DecrRef();
return GENERIC_EXIT_OK;
}