void parseHttp() {
String line = Serial.readStringUntil('\n');
if (line.startsWith("Content-Length: ")) {
sscanf(line.c_str() + 16, "%d", &contentLength);
} else if (line.startsWith("GET")) {
method = GET;
path = parsePath(line);
} else if (line.startsWith("PUT")) {
method = PUT;
path = parsePath(line);
} else if (line == "\r") {
if (path.startsWith("/reset")) {
sendResponse(200);
setup();
} else if (path.startsWith("/sensors") && method == GET) {
getSensors();
} else if (path.startsWith("/leds") && (method == GET)) {
getLeds();
} else if (path.startsWith("/leds") && (method == PUT)) {
putLeds();
} else if (path.startsWith("/settings") && (method == GET)) {
getSettings();
} else if (path.startsWith("/settings") && (method == PUT)) {
putSettings();
} else {
sendResponse(404);
}
contentLength = 0;
}
}
int main(void) {
unsigned int b;
unsigned char c;
init_all();
lcd_puts("Ready.", FIRST);
for(;;)
{
/*
* Get received character from ringbuffer
* uart_getc() returns in the lower byte the received character and
* in the higher byte (bitmask) the last receive error
* UART_NO_DATA is returned when no data is available.
*
*/
b = uart_getc();
if ( b & UART_NO_DATA )
{
/*
* no data available from UART
*/
}
else
{
/*
* new data available from UART
* check for Frame or Overrun error
*/
if ( b & UART_FRAME_ERROR )
{
/* Framing Error detected, i.e no stop bit detected */
lcd_puts("UART Frame Error", FIRST);
}
if ( b & UART_OVERRUN_ERROR )
{
/*
* Overrun, a character already present in the UART UDR register was
* not read by the interrupt handler before the next character arrived,
* one or more received characters have been dropped
*/
lcd_puts("UART Overrun Error", FIRST);
}
if ( b & UART_BUFFER_OVERFLOW )
{
/*
* We are not reading the receive buffer fast enough,
* one or more received character have been dropped
*/
lcd_puts("Buffer overflow error", FIRST);
}
/*
* send received character back
*/
c = (unsigned char) b;
switch(c) {
case 0x16:
uart_putc(button);
button = 0;
break;
case 0x00:
break;
case 0x07: //BELL
beep(); //BEEP!!!
break;
case 0x11: //DEVICE CONTROL 1
setLeds(getLeds() ^ RED); //rote LED togglen
break;
case 0x12: //DEVICE CONTROL 2
setLeds(getLeds() ^ GREEN); //gruene LED togglen
break;
case 0x13: //DEVICE CONTROL 3
lcd_clearLine(FIRST); //Erste Zeile leeren und ab da schreiben
break;
case 0x14: //DEVICE CONTROL 4
lcd_clearLine(SECOND); //Zweite Zeile leeren und ab da schreiben
break;
default: // Normales Zeichen
lcd_putc(c); //Zeichen schreiben
break;
}
}
}
return 0;
}
