void loop() {
	WiFiClient client = server.available(); // Listen for incoming clients

	if (client)
	{					
		String currentLine = ""; 
		while (client.connected())
		{ // loop while the client's connected
			if (client.available())
			{							// if there's bytes to read from the client,
				char c = client.read(); // read a byte, then
						// print it out the serial monitor
				header += c;
				if (c == '\n')
				{ // if the byte is a newline character
					// if the current line is blank, you got two newline characters in a row.
					// that's the end of the client HTTP request, so send a response:
					if (currentLine.length() == 0)
					{
						if(header.indexOf("/api/") >= 0) {
							//TODO
							client.println("HTTP/1.1 404 Not Found");
							client.println("Connection: close");
							client.println();
							client.println("Not found");
							client.println();
							break;
						} else {
							String path = midString(header, "GET ", " HTTP");
							if(path == "/")
								path = "/index.htm";
							path  ="/www" + path;
							Serial.println(path);

							if(!SPIFFS.exists(path)) {
								client.println("HTTP/1.1 404 Not Found");
								client.println("Connection: close");
								client.println();
								client.println("Not found");
								client.println();
								break;
							}

							File f = SPIFFS.open(path, "r");

							// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
							// and a content-type so the client knows what's coming, then a blank line:
							client.println("HTTP/1.1 200 OK");
							client.println("Content-type:text/html");
							client.println("Connection: close");
							client.println("Content-length: " + f.size());
							client.println();

							client.write(f);
							f.close();

							client.println();
							break;
						}
					}
					else
					{ // if you got a newline, then clear currentLine
						currentLine = "";
					}
				}
				else if (c != '\r')
				{					  // if you got anything else but a carriage return character,
					currentLine += c; // add it to the end of the currentLine
				}
			}
		}
		// Clear the header variable
		header = "";
		// Close the connection
		client.stop();
	}

	//serialEvent();
	//_server.handleClient();

	//TODO: read temp sensor every 5s
	/*while(true) {
		readTempSensor();
		delay(5000);
	}*/
}