void EventSource::parseEventStreamLine(unsigned position, Optional<unsigned> fieldLength, unsigned lineLength)
{
if (!lineLength) {
if (!m_data.isEmpty())
dispatchMessageEvent();
m_eventName = { };
return;
}
if (fieldLength && !fieldLength.value())
return;
StringView field { &m_receiveBuffer[position], fieldLength ? fieldLength.value() : lineLength };
unsigned step;
if (!fieldLength)
step = lineLength;
else if (m_receiveBuffer[position + fieldLength.value() + 1] != ' ')
step = fieldLength.value() + 1;
else
step = fieldLength.value() + 2;
position += step;
unsigned valueLength = lineLength - step;
if (field == "data") {
m_data.append(&m_receiveBuffer[position], valueLength);
m_data.append('\n');
} else if (field == "event")
m_eventName = { &m_receiveBuffer[position], valueLength };
else if (field == "id")
m_currentlyParsedEventId = { &m_receiveBuffer[position], valueLength };
else if (field == "retry") {
if (!valueLength)
m_reconnectDelay = defaultReconnectDelay;
else {
// FIXME: Do we really want to ignore trailing garbage here? Should we be using the strict version instead?
// FIXME: If we can't parse the value, should we leave m_reconnectDelay alone or set it to defaultReconnectDelay?
bool ok;
auto reconnectDelay = charactersToUInt64(&m_receiveBuffer[position], valueLength, &ok);
if (ok)
m_reconnectDelay = reconnectDelay;
}
}
}
uint64_t StringImpl::toUInt64(bool* ok)
{
return charactersToUInt64(m_data, m_length, ok);
}