Method flush

be/src/transport/THttpServer.cpp:520–549

}

void THttpServer::flush() {
  // Fetch the contents of the write buffer
  uint8_t* buf;
  uint32_t len;
  writeBuffer_.getBuffer(&buf, &len);

  // Construct the HTTP header
  std::ostringstream h;
  h << "HTTP/1.1 200 OK" << CRLF << "Date: " << getTimeRFC1123() << CRLF
    << "Server: Thrift/" << PACKAGE_VERSION << CRLF
    << "Access-Control-Allow-Origin: *" << CRLF
    << "Content-Type: application/x-thrift" << CRLF << "Content-Length: " << len << CRLF
    << "Connection: Keep-Alive" << CRLF;
  vector<string> return_headers = callbacks_.return_headers_fn();
  for (const string& header : return_headers) {
    h << header << CRLF;
  }
  h << CRLF;
  string header = h.str();

  // Write the header, then the data, then flush
  // cast should be fine, because none of "header" is under attacker control
  transport_->write((const uint8_t*)header.c_str(), static_cast<uint32_t>(header.size()));
  transport_->write(buf, len);
  transport_->flush();

  // Reset the buffer and header variables
  writeBuffer_.resetBuffer();
  readHeaders_ = true;
}

std::string THttpServer::getTimeRFC1123() {
  static const char* Days[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};