/*
Notification callback. This routine is called from the Http pipeline on connection state changes.
*/
static void stateChangeNotifier(HttpConn *conn, int event, int arg)
{
Ejs *ejs;
EjsRequest *req;
assert(conn);
ejs = 0;
if ((req = httpGetConnContext(conn)) != 0) {
ejs = req->ejs;
}
switch (event) {
case HTTP_EVENT_STATE:
if (arg == HTTP_STATE_BEGIN) {
setupConnTrace(conn);
} else if (arg == HTTP_STATE_FINALIZED) {
if (req) {
if (conn->error) {
ejsSendRequestErrorEvent(ejs, req);
}
ejsSendRequestCloseEvent(ejs, req);
if (req->cloned) {
ejsSendRequestCloseEvent(req->ejs, req->cloned);
}
}
}
break;
case HTTP_EVENT_READABLE:
/* IO event notification for the request. */
if (req && req->emitter) {
ejsSendEvent(ejs, req->emitter, "readable", NULL, req);
}
break;
case HTTP_EVENT_WRITABLE:
if (req && req->emitter) {
ejsSendEvent(ejs, req->emitter, "writable", NULL, req);
}
break;
case HTTP_EVENT_APP_CLOSE:
/* Connection close */
if (req && req->conn) {
req->conn = 0;
}
break;
}
}
static void httpEventChange(HttpConn *conn, int event, int arg)
{
Ejs *ejs;
EjsHttp *hp;
HttpTx *tx;
MprOff lastWritten;
hp = httpGetConnContext(conn);
ejs = hp->ejs;
tx = conn->tx;
switch (event) {
case HTTP_EVENT_STATE:
switch (arg) {
case HTTP_STATE_PARSED:
if (hp->emitter) {
ejsSendEvent(ejs, hp->emitter, "headers", NULL, hp);
}
break;
case HTTP_STATE_FINALIZED:
if (hp->emitter) {
if (conn->error) {
sendHttpErrorEvent(ejs, hp);
}
sendHttpCloseEvent(ejs, hp);
}
break;
}
break;
case HTTP_EVENT_READABLE:
if (hp && hp->emitter) {
ejsSendEvent(ejs, hp->emitter, "readable", NULL, hp);
}
break;
case HTTP_EVENT_WRITABLE:
if (hp && hp->emitter) {
do {
lastWritten = tx->bytesWritten;
ejsSendEvent(ejs, hp->emitter, "writable", NULL, hp);
} while (tx->bytesWritten > lastWritten && !tx->writeBlocked);
}
break;
}
}
/*
function close(): Void
*/
static EjsObj *hs_close(Ejs *ejs, EjsHttpServer *sp, int argc, EjsObj **argv)
{
if (sp->endpoint) {
ejsSendEvent(ejs, sp->emitter, "close", NULL, sp);
httpDestroyEndpoint(sp->endpoint);
sp->endpoint = 0;
}
return 0;
}
/*
function on(name, observer: function): Http
*/
static EjsHttp *http_on(Ejs *ejs, EjsHttp *hp, int argc, EjsObj **argv)
{
EjsFunction *observer;
HttpConn *conn;
observer = (EjsFunction*) argv[1];
if (observer->boundThis == 0 || observer->boundThis == ejs->global) {
observer->boundThis = hp;
}
ejsAddObserver(ejs, &hp->emitter, argv[0], observer);
conn = hp->conn;
if (conn->readq && conn->readq->count > 0) {
ejsSendEvent(ejs, hp->emitter, "readable", NULL, hp);
}
// TODO - don't need to test finalizedConnector
if (!conn->tx->finalizedConnector && !conn->error && HTTP_STATE_CONNECTED <= conn->state &&
conn->state < HTTP_STATE_FINALIZED && conn->writeq->ioCount == 0) {
httpNotify(conn, HTTP_EVENT_WRITABLE, 0);
}
return hp;
}
static void onWebSocketEvent(EjsWebSocket *ws, int event, EjsAny *data, HttpPacket *packet)
{
Ejs *ejs;
EjsAny *eobj;
EjsFunction *fn;
HttpRx *rx;
cchar *eventName, *reason;
int slot, status;
ejs = ws->ejs;
rx = ws->conn->rx;
eobj = ejsCreateObj(ejs, ESV(Object), 0);
slot = -1;
eventName = 0;
switch(event) {
case HTTP_EVENT_READABLE:
slot = ES_WebSocket_onmessage;
eventName = "readable";
assert(data);
ejsSetPropertyByName(ejs, eobj, EN("data"), data);
ejsSetPropertyByName(ejs, eobj, EN("last"), ejsCreateBoolean(ejs, packet->last));
ejsSetPropertyByName(ejs, eobj, EN("type"), ejsCreateNumber(ejs, packet->type));
break;
case HTTP_EVENT_ERROR:
eventName = "error";
slot = ES_WebSocket_onerror;
break;
case HTTP_EVENT_APP_OPEN:
slot = ES_WebSocket_onopen;
eventName = "headers";
if (rx->webSocket) {
httpSetWebSocketPreserveFrames(ws->conn, ws->frames);
}
break;
case HTTP_EVENT_DESTROY:
if (ws->closed) {
break;
}
ws->closed = 1;
/* Fall through to close */
case HTTP_EVENT_APP_CLOSE:
eventName = "complete";
slot = ES_WebSocket_onclose;
status = rx ? rx->webSocket->closeStatus: WS_STATUS_COMMS_ERROR;
reason = rx ? rx->webSocket->closeReason: 0;
ejsSetPropertyByName(ejs, eobj, EN("code"), ejsCreateNumber(ejs, status));
ejsSetPropertyByName(ejs, eobj, EN("reason"), ejsCreateStringFromAsc(ejs, reason));
ejsSetPropertyByName(ejs, eobj, EN("wasClean"), ejsCreateBoolean(ejs, status != WS_STATUS_COMMS_ERROR));
break;
}
if (slot >= 0) {
if (ws->emitter) {
ejsSendEvent(ejs, ws->emitter, eventName, ws, data);
}
fn = ejsGetProperty(ejs, ws, slot);
if (ejsIsFunction(ejs, fn) && !ejs->exception) {
ejsRunFunction(ejs, fn, ws, 1, &eobj);
}
}
}