void WbDlg::endSession() {
if(sender() == act_end_) {
int n = QMessageBox::information(this, tr("Warning"), tr("Are you sure you want to end the session?\nThe contents of the whiteboard will be lost."), tr("&Yes"), tr("&No"));
if(n != 0)
return;
}
// terminate the underlying SXE session
session()->endSession();
emit sessionEnded(this);
}
/**
* @brief Delete a session
*
* If the session is hibernatable, it will be stored before it is deleted.
*
* @param session
*/
void SessionServer::destroySession(Session *session)
{
Q_ASSERT(_sessions.contains(session));
session->unlistAnnouncement();
logger::debug() << session << "Deleting session. User count is" << session->userCount();
_sessions.removeOne(session);
QString id = session->id();
session->stopRecording();
session->deleteLater(); // destroySession call might be triggered by a signal emitted from the session
emit sessionEnded(id);
}
/**
* @brief Delete a session
*
* If the session is hibernatable, it will be stored before it is deleted.
*
* @param session
*/
void SessionServer::destroySession(SessionState *session)
{
Q_ASSERT(_sessions.contains(session));
logger::debug() << session << "Deleting session. User count is" << session->userCount();
_sessions.removeOne(session);
QString id = session->id();
session->stopRecording();
if(session->isHibernatable() && _store) {
logger::info() << session << "Hibernating.";
_store->storeSession(session);
}
session->deleteLater(); // destroySession call might be triggered by a signal emitted from the session
emit sessionEnded(id);
}
MultiServer::MultiServer(QObject *parent)
: QObject(parent),
_server(0),
_state(NOT_STARTED),
_autoStop(false)
{
_sessions = new SessionServer(this);
connect(_sessions, SIGNAL(sessionCreated(SessionState*)), this, SLOT(assignRecording(SessionState*)));
connect(_sessions, SIGNAL(sessionEnded(QString)), this, SLOT(tryAutoStop()));
connect(_sessions, SIGNAL(userLoggedIn()), this, SLOT(printStatusUpdate()));
connect(_sessions, &SessionServer::userDisconnected, [this]() {
printStatusUpdate();
// The server will be fully stopped after all users have disconnected
if(_state == STOPPING)
stop();
else
tryAutoStop();
});
}
BuiltinServer::BuiltinServer(QObject *parent)
: QObject(parent),
_server(0),
_state(NOT_STARTED)
{
_sessions = new SessionServer(this);
// Set configurable settings
QSettings cfg;
cfg.beginGroup("settings/server");
_sessions->setHistoryLimit(qMax(0, int(cfg.value("historylimit", 0).toDouble() * 1024 * 1024)));
_sessions->setConnectionTimeout(cfg.value("timeout", 60).toInt() * 1000);
// Only one session per server is supported here
_sessions->setSessionLimit(1);
connect(_sessions, SIGNAL(sessionEnded(QString)), this, SLOT(stop()));
connect(_sessions, &SessionServer::userDisconnected, [this]() {
// The server will be fully stopped after all users have disconnected
if(_state == STOPPING)
stop();
});
}
static Iface_DEFUN incomingMsg(struct Message* msg, struct Pathfinder_pvt* pf)
{
struct Address addr;
struct RouteHeader* hdr = (struct RouteHeader*) msg->bytes;
Message_shift(msg, -(RouteHeader_SIZE + DataHeader_SIZE), NULL);
Bits_memcpy(addr.ip6.bytes, hdr->ip6, 16);
Bits_memcpy(addr.key, hdr->publicKey, 32);
addr.protocolVersion = Endian_bigEndianToHost32(hdr->version_be);
addr.padding = 0;
addr.path = Endian_bigEndianToHost64(hdr->sh.label_be);
//Log_debug(pf->log, "Incoming DHT");
struct DHTMessage dht = {
.address = &addr,
.binMessage = msg,
.allocator = msg->alloc
};
DHTModuleRegistry_handleIncoming(&dht, pf->registry);
struct Message* nodeMsg = Message_new(0, 256, msg->alloc);
Iface_CALL(sendNode, nodeMsg, &addr, 0xfffffff0u, pf);
if (dht.pleaseRespond) {
// what a beautiful hack, see incomingFromDHT
return Iface_next(&pf->pub.eventIf, msg);
}
return NULL;
}
static Iface_DEFUN incomingFromEventIf(struct Message* msg, struct Iface* eventIf)
{
struct Pathfinder_pvt* pf = Identity_containerOf(eventIf, struct Pathfinder_pvt, pub.eventIf);
enum PFChan_Core ev = Message_pop32(msg, NULL);
if (Pathfinder_pvt_state_INITIALIZING == pf->state) {
Assert_true(ev == PFChan_Core_CONNECT);
return connected(pf, msg);
}
// Let the PF send another 128 path changes again because it's basically a new tick.
pf->bestPathChanges = 0;
switch (ev) {
case PFChan_Core_SWITCH_ERR: return switchErr(msg, pf);
case PFChan_Core_SEARCH_REQ: return searchReq(msg, pf);
case PFChan_Core_PEER: return peer(msg, pf);
case PFChan_Core_PEER_GONE: return peerGone(msg, pf);
case PFChan_Core_SESSION: return session(msg, pf);
case PFChan_Core_SESSION_ENDED: return sessionEnded(msg, pf);
case PFChan_Core_DISCOVERED_PATH: return discoveredPath(msg, pf);
case PFChan_Core_MSG: return incomingMsg(msg, pf);
case PFChan_Core_PING: return handlePing(msg, pf);
case PFChan_Core_PONG: return handlePong(msg, pf);
case PFChan_Core_UNSETUP_SESSION:
case PFChan_Core_LINK_STATE:
case PFChan_Core_CTRL_MSG: return NULL;
default:;
}
Assert_failure("unexpected event [%d]", ev);
}
static void sendEvent(struct Pathfinder_pvt* pf, enum PFChan_Pathfinder ev, void* data, int size)
{
struct Allocator* alloc = Allocator_child(pf->alloc);
struct Message* msg = Message_new(0, 512+size, alloc);
Message_push(msg, data, size, NULL);
Message_push32(msg, ev, NULL);
Iface_send(&pf->pub.eventIf, msg);
Allocator_free(alloc);
}
static void init(void* vpf)
{
struct Pathfinder_pvt* pf = Identity_check((struct Pathfinder_pvt*) vpf);
struct PFChan_Pathfinder_Connect conn = {
.superiority_be = Endian_hostToBigEndian32(1),
.version_be = Endian_hostToBigEndian32(Version_CURRENT_PROTOCOL)
};
CString_strncpy(conn.userAgent, "Cjdns internal pathfinder", 64);
sendEvent(pf, PFChan_Pathfinder_CONNECT, &conn, PFChan_Pathfinder_Connect_SIZE);
}
struct Pathfinder* Pathfinder_register(struct Allocator* allocator,
struct Log* log,
struct EventBase* base,
struct Random* rand,
struct Admin* admin)
{
struct Allocator* alloc = Allocator_child(allocator);
struct Pathfinder_pvt* pf = Allocator_calloc(alloc, sizeof(struct Pathfinder_pvt), 1);
Identity_set(pf);
pf->alloc = alloc;
pf->log = log;
pf->base = base;
pf->rand = rand;
pf->admin = admin;
pf->pub.eventIf.send = incomingFromEventIf;
pf->dhtModule.context = pf;
pf->dhtModule.handleOutgoing = incomingFromDHT;
// This needs to be done asynchronously so the pf can be plumbed to the core
Timeout_setTimeout(init, pf, 0, base, alloc);
return &pf->pub;
}
WbDlg::~WbDlg() {
// terminate the underlying SXE session
session()->endSession();
emit sessionEnded(this);
}
