void HTTPSocket<isServer>::onData(uS::Socket s, char *data, int length) {
HTTPSocket httpSocket(s);
HTTPSocket::Data *httpData = httpSocket.getData();
// 5k = force close!
if (httpData->httpBuffer.length() + length > 1024 * 5) {
httpSocket.onEnd(s);
return;
}
httpData->httpBuffer.append(data, length);
size_t endOfHTTPBuffer = httpData->httpBuffer.find("\r\n\r\n");
if (endOfHTTPBuffer != std::string::npos) {
if (isServer) {
HTTPParser httpParser = (char *) httpData->httpBuffer.data();
std::pair<char *, size_t> secKey = {}, extensions = {}, subprotocol = {}, path = httpParser.value;
for (httpParser++; httpParser.key.second; httpParser++) {
if (httpParser.key.second == 17 || httpParser.key.second == 24 || httpParser.key.second == 22) {
// lowercase the key
for (size_t i = 0; i < httpParser.key.second; i++) {
httpParser.key.first[i] = tolower(httpParser.key.first[i]);
}
if (!strncmp(httpParser.key.first, "sec-websocket-key", httpParser.key.second)) {
secKey = httpParser.value;
} else if (!strncmp(httpParser.key.first, "sec-websocket-extensions", httpParser.key.second)) {
extensions = httpParser.value;
} else if (!strncmp(httpParser.key.first, "sec-websocket-protocol", httpParser.key.second)) {
subprotocol = httpParser.value;
}
}
}
if (secKey.first && secKey.second == 24) {
// this needs to be part of upgrade itself, and shared with Hub::upgrade!
bool perMessageDeflate = false;
std::string extensionsResponse;
if (extensions.first) {
Group<isServer> *group = (Group<isServer> *) s.getNodeData(s.getSocketData());
ExtensionsNegotiator<uWS::SERVER> extensionsNegotiator(group->extensionOptions);
extensionsNegotiator.readOffer(std::string(extensions.first, extensions.second));
extensionsResponse = extensionsNegotiator.generateOffer();
if (extensionsNegotiator.getNegotiatedOptions() & PERMESSAGE_DEFLATE) {
perMessageDeflate = true;
}
}
if (httpSocket.upgrade(secKey.first, extensionsResponse.data(), extensionsResponse.length(), subprotocol.first, subprotocol.second)) {
s.cancelTimeout();
s.enterState<WebSocket<SERVER>>(new WebSocket<SERVER>::Data(perMessageDeflate, httpData));
((Group<SERVER> *) s.getSocketData()->nodeData)->addWebSocket(s);
//s.cork(true);
((Group<SERVER> *) s.getSocketData()->nodeData)->connectionHandler(WebSocket<SERVER>(s), {path.first, subprotocol.first,
path.second, subprotocol.second});
//s.cork(false);
delete httpData;
}
} else {
httpSocket.onEnd(s);
}
} else {
httpData->httpBuffer.resize(httpData->httpBuffer.length() + WebSocketProtocol<uWS::CLIENT>::CONSUME_POST_PADDING);
bool isUpgrade = false;
HTTPParser httpParser = (char *) httpData->httpBuffer.data();
//std::pair<char *, size_t> secKey = {}, extensions = {};
for (httpParser++; httpParser.key.second; httpParser++) {
if (httpParser.key.second == 7) {
// lowercase the key
for (size_t i = 0; i < httpParser.key.second; i++) {
httpParser.key.first[i] = tolower(httpParser.key.first[i]);
}
// lowercase the value
for (size_t i = 0; i < httpParser.value.second; i++) {
httpParser.value.first[i] = tolower(httpParser.value.first[i]);
}
if (!strncmp(httpParser.key.first, "upgrade", httpParser.key.second)) {
if (!strncmp(httpParser.value.first, "websocket", 9)) {
isUpgrade = true;
}
break;
}
}
}
if (isUpgrade) {
s.enterState<WebSocket<CLIENT>>(new WebSocket<CLIENT>::Data(false, httpData));
//s.cork(true);
httpSocket.cancelTimeout();
httpSocket.setUserData(httpData->httpUser);
((Group<CLIENT> *) s.getSocketData()->nodeData)->addWebSocket(s);
((Group<CLIENT> *) s.getSocketData()->nodeData)->connectionHandler(WebSocket<CLIENT>(s), {nullptr, nullptr, 0, 0});
//s.cork(false);
if (!(s.isClosed() || s.isShuttingDown())) {
WebSocketProtocol<CLIENT> *kws = (WebSocketProtocol<CLIENT> *) ((WebSocket<CLIENT>::Data *) s.getSocketData());
kws->consume((char *) httpData->httpBuffer.data() + endOfHTTPBuffer + 4, httpData->httpBuffer.length() - endOfHTTPBuffer - 4 - WebSocketProtocol<uWS::CLIENT>::CONSUME_POST_PADDING, s);
}
delete httpData;
} else {
httpSocket.onEnd(s);
}
}
}
}
