void MediaKeys::timerFired(TimerBase*) {
DCHECK(m_pendingActions.size());
// Swap the queue to a local copy to avoid problems if resolving promises
// run synchronously.
HeapDeque<Member<PendingAction>> pendingActions;
pendingActions.swap(m_pendingActions);
while (!pendingActions.isEmpty()) {
PendingAction* action = pendingActions.takeFirst();
DVLOG(MEDIA_KEYS_LOG_LEVEL) << __func__ << "(" << this << ") Certificate";
// 5.1 Let cdm be the cdm during the initialization of this object.
WebContentDecryptionModule* cdm = contentDecryptionModule();
// 5.2 Use the cdm to process certificate.
cdm->setServerCertificate(
static_cast<unsigned char*>(action->data()->data()),
action->data()->byteLength(), action->result()->result());
// 5.3 If any of the preceding steps failed, reject promise with a
// new DOMException whose name is the appropriate error name.
// 5.4 Resolve promise.
// (These are handled by Chromium and the CDM.)
}
}
void MediaKeySession::actionTimerFired(Timer<MediaKeySession>*)
{
ASSERT(m_pendingActions.size());
// Resolving promises now run synchronously and may result in additional
// actions getting added to the queue. As a result, swap the queue to
// a local copy to avoid problems if this happens.
HeapDeque<Member<PendingAction>> pendingActions;
pendingActions.swap(m_pendingActions);
while (!pendingActions.isEmpty()) {
PendingAction* action = pendingActions.takeFirst();
switch (action->type()) {
case PendingAction::GenerateRequest:
// NOTE: Continue step 9 of MediaKeySession::generateRequest().
WTF_LOG(Media, "MediaKeySession(%p)::actionTimerFired: GenerateRequest", this);
// initializeNewSession() in Chromium will execute steps 9.1 to 9.7.
m_session->initializeNewSession(action->initDataType(), static_cast<unsigned char*>(action->data()->data()), action->data()->byteLength(), m_sessionType, action->result()->result());
// Remaining steps (from 9.8) executed in finishGenerateRequest(),
// called when |result| is resolved.
break;
case PendingAction::Load:
// NOTE: Continue step 8 of MediaKeySession::load().
WTF_LOG(Media, "MediaKeySession(%p)::actionTimerFired: Load", this);
// 8.1 Let sanitized session ID be a validated and/or sanitized
// version of sessionId. The user agent should thoroughly
// validate the sessionId value before passing it to the CDM.
// At a minimum, this should include checking that the length
// and value (e.g. alphanumeric) are reasonable.
// 8.2 If the previous step failed, reject promise with a new
// DOMException whose name is "InvalidAccessError".
if (!isValidSessionId(action->sessionId())) {
action->result()->completeWithError(WebContentDecryptionModuleExceptionInvalidAccessError, 0, "Invalid sessionId");
return;
}
// 8.3 If there is an unclosed session in the object's Document
// whose sessionId attribute is sanitized session ID, reject
// promise with a new DOMException whose name is
// QuotaExceededError. In other words, do not create a session
// if a non-closed session, regardless of type, already exists
// for this sanitized session ID in this browsing context.
// (Done in the CDM.)
// 8.4 Let expiration time be NaN.
// (Done in the constructor.)
ASSERT(std::isnan(m_expiration));
// load() in Chromium will execute steps 8.5 through 8.8.
m_session->load(action->sessionId(), action->result()->result());
// Remaining steps (from 8.9) executed in finishLoad(), called
// when |result| is resolved.
break;
case PendingAction::Update:
// NOTE: Continue step 5 of MediaKeySession::update().
WTF_LOG(Media, "MediaKeySession(%p)::actionTimerFired: Update", this);
// update() in Chromium will execute steps 5.1 through 5.8.
m_session->update(static_cast<unsigned char*>(action->data()->data()), action->data()->byteLength(), action->result()->result());
// Last step (5.9 Resolve promise) will be done when |result| is
// resolved.
break;
case PendingAction::Close:
// NOTE: Continue step 4 of MediaKeySession::close().
WTF_LOG(Media, "MediaKeySession(%p)::actionTimerFired: Close", this);
// close() in Chromium will execute steps 4.1 through 4.2.
m_session->close(action->result()->result());
// Last step (4.3 Resolve promise) will be done when |result| is
// resolved.
break;
case PendingAction::Remove:
// NOTE: Continue step 5 of MediaKeySession::remove().
WTF_LOG(Media, "MediaKeySession(%p)::actionTimerFired: Remove", this);
// remove() in Chromium will execute steps 5.1 through 5.3.
m_session->remove(action->result()->result());
// Last step (5.3.3 Resolve promise) will be done when |result| is
// resolved.
break;
}
}
}
