/*
Web server sketch for IDE v1.0.3 and w5100/w5200
Originally posted October 2012 by SurferTim
Modified April 2013 by SurferTim
*/
#include <SPI.h>
#include <Ethernet.h>
// uncomment next line if using SD
// #include <SD.h>
// this must be unique
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xEC };
// change to your network settings
IPAddress ip( 192,168,2,2 );
IPAddress gateway( 192,168,2,1 );
IPAddress subnet( 255,255,255,0 );
EthernetServer server(80);
void setup()
{
Serial.begin(9600);
// disable w5100 while setting up SD
// uncomment next 5 lines if using a microSD card
// pinMode(10,OUTPUT);
// digitalWrite(10,HIGH);
// Serial.print(F("Starting SD.."));
// if(!SD.begin(4)) Serial.println(F("failed"));
// else Serial.println(F("ok"));
Ethernet.begin(mac, ip, gateway, gateway, subnet);
digitalWrite(10,HIGH);
delay(2000);
server.begin();
Serial.println(F("Ready"));
}
void loop()
{
EthernetClient client = server.available();
if(client) {
boolean currentLineIsBlank = true;
boolean currentLineIsGet = true;
int tCount = 0;
char tBuf[64];
int r,t;
char *pch;
Serial.print(F("Client request: "));
// this controls the timeout
int loopCount = 0;
while (client.connected()) {
while(client.available()) {
// if packet, reset loopCount
loopCount = 0;
char c = client.read();
if(currentLineIsGet && tCount < 63)
{
tBuf[tCount] = c;
tCount++;
tBuf[tCount] = 0;
}
if (c == '\n' && currentLineIsBlank) {
// send a standard http response
Serial.println(tBuf);
Serial.print(F("POST data: "));
while(client.available()) Serial.write(client.read());
Serial.println();
pch = strtok(tBuf,"?");
while(pch != NULL)
{
if(strncmp(pch,"t=",2) == 0)
{
t = atoi(pch+2);
Serial.print("t=");
Serial.println(t,DEC);
}
if(strncmp(pch,"r=",2) == 0)
{
r = atoi(pch+2);
Serial.print("r=");
Serial.println(r,DEC);
}
pch = strtok(NULL,"& ");
}
Serial.println(F("Sending response"));
client.print(F("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<html>"));
client.println(F("<head><script type=\"text/javascript\">"));
client.println(F("function show_alert() {alert(\"This is an alert\");}"));
client.println(F("</script></head>"));
client.println(F("<body><H1>TEST</H1>"));
client.println(F("<form method=GET onSubmit=\"show_alert()\">T: <input type=text name=t><br>"));
client.println(F("R: <input type=text name=r><br><input type=submit></form>"));
client.println(F("</body></html>"));
client.stop();
}
else if (c == '\n') {
currentLineIsBlank = true;
currentLineIsGet = false;
}
else if (c != '\r') {
currentLineIsBlank = false;
}
}
loopCount++;
// if 10000ms has passed since last packet
if(loopCount > 10000) {
// close connection
client.stop();
Serial.println("\r\nTimeout");
}
// delay 1ms for timeout timing
delay(1);
}
Serial.println(F("done"));
}
}