Patryk Patlas
Simple server for AGH accademic purpose
Dependencies: EthernetInterface mbed-rtos mbed
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HTTP_SD_Server_K64F
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main.cpp
- Committer:
- patlas
- Date:
- 2016-12-01
- Revision:
- 9:aebb88e6e653
- Parent:
- 8:a27748c1fc33
File content as of revision 9:aebb88e6e653:
#include "mbed.h"
#include "EthernetInterface.h"
#include <stdio.h>
#include <string.h>
#define HTTPD_SERVER_PORT 80
#define HTTPD_MAX_REQ_LENGTH 1023
#define HTTPD_MAX_HDR_LENGTH 2056
#define LED_R 26
#define LED_G 22
#define LED_B 21
Serial uart(USBTX, USBRX);
EthernetInterface eth;
TCPSocketServer server;
TCPSocketConnection client;
char buffer[HTTPD_MAX_REQ_LENGTH+1];
char httpHeader[HTTPD_MAX_HDR_LENGTH+1];
char *uristr;
char *eou;
char *qrystr;
int rdCnt;
char *first = "/first";
char *sec = "/second";
char *led = "/led";
char *ledr = "/led/r";
char *ledg = "/led/g";
char *ledb = "/led/b";
DigitalOut ledR(LED1,1);
DigitalOut ledG(LED2,1);
DigitalOut ledB(LED3,1);
char led_stat = 0;
void show_page(char* uri)
{
uart.printf("Trying to open requested uri\r\n");
uart.printf("%s\r\n",uri);
char *lstchr_ptr = strrchr(uri, NULL) -1; //function try to find char which is non ascii (recently set to 0 so no ascii)
if(!strcmp(uri, first)){
sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n");
client.send(httpHeader,strlen(httpHeader));
sprintf(httpHeader,"<html><head><title>First_one</title></head><body><h1>First page has been opened</h1></body></html>");
client.send(httpHeader,strlen(httpHeader));
}
else if(!strcmp(uri, sec)){
sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n");
client.send(httpHeader,strlen(httpHeader));
sprintf(httpHeader,"<html><head><title>Seond_one</title></head><body><h1>Second page has been opened</h1></body></html>");
client.send(httpHeader,strlen(httpHeader));
}
else if(!strcmp(uri, led)){
sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n");
client.send(httpHeader,strlen(httpHeader));
sprintf(httpHeader,"<html><head><title>LED</title></head><body> \n"
"<button id='rb' onclick='hget(\"r\")'>RED</button><br/> \n"
"<button id='gb' onclick='hget(\"g\")'>GREEN</button><br/> \n"
"<button id='bb' onclick='hget(\"b\")'>BLUE</button><br/> \n"
"<div id='ramka'>NAPIS</div><br/> \n"
"</h1> \n"
"</body>\n"
"<script type='text/javascript'>\n"
"function hget(val){ \n"
" var x = new XMLHttpRequest(); \n"
" x.onreadystatechange = function() { \n"
" if (x.readyState == 4 && x.status == 200){ \n"
" if(x.responseText=='r') document.body.style.backgroundColor='red';\n"
" else if (x.responseText=='b') document.body.style.backgroundColor='blue';\n"
" else if (x.responseText=='g') document.body.style.backgroundColor='green';\n"
" else document.body.style.backgroundColor='white';}}\n"
" x.open('GET', '/led/'+val, true);\n"
" x.send(null);}\n"
" </script>\n"
"</html>");
client.send(httpHeader,strlen(httpHeader));
}
else if(!strcmp(uri, ledr)){
led_stat ^= 1;
ledR.write(!(led_stat&1));
if(led_stat & 1){
client.send("r",1); //+zapalic led
} else {
client.send("w",1);
}
//uart.printf("RED\n");
}
else if(!strcmp(uri, ledg)){
led_stat ^= 2;
ledG.write(led_stat&2);
if(!(led_stat & 2)){
client.send("g",1); //+zapalic led
} else {
client.send("w",1);
}
//uart.printf("GREEN\n");
}
else if(!strcmp(uri, ledb)){
led_stat ^= 4;
ledB.write(!(led_stat&4));
if(led_stat & 4){
client.send("b",1); //+zapalic led
} else {
client.send("w",1);
}
//uart.printf("BLUE\n");
}
else{
sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n");
client.send(httpHeader,strlen(httpHeader));
sprintf(httpHeader,"<html><head><title>ERROR</title></head><body><h1>THERE IS NO SUCH PAGE</h1></body></html>");
client.send(httpHeader,strlen(httpHeader));
}
}
int main (void)
{
//ledR.write(1);
//ledB.write(1);
// Serial Interface eth;
uart.baud(115200);
uart.printf("Initializing\r\n");
// EthernetInterface eth;
uart.printf("Initializing Ethernet ...\r\n");
if(!eth.init("192.168.5.10", "255.255.255.0", "192.168.5.50")){//Init interface with static IP
uart.printf("Ethernet interface configured properly\r\n");
}
uart.printf("Setting interface UP ...\r\n");
eth.connect();
uart.printf("IP: %s\r\n", eth.getIPAddress());
uart.printf("Mask: %s\r\n", eth.getNetworkMask());
// TCPSocketServer server;
uart.printf("Starting TCP server at port: %d\r\n", HTTPD_SERVER_PORT);
server.bind(HTTPD_SERVER_PORT);
server.listen();
uart.printf("Server starts listening at port: %d\r\n", HTTPD_SERVER_PORT);
while (true) {
uart.printf("\nWaiting for new connection...\r\n");
server.accept(client);
client.set_blocking(false, 1500); // Timeout after (1.5)s
uart.printf("Client with IP %s has connected with server.\r\n", client.get_address());
while (true) {
int n = client.receive(buffer, sizeof(buffer));
if (n <= 0) break;
uart.printf("Recieved Data: %d\r\n\r\n%.*s\r\n",n,n,buffer);
if (n >= 1024) {
sprintf(httpHeader,"HTTP/1.1 413 Request Entity Too Large \r\nContent-Type: text\r\nConnection: Close\r\n\r\n");
client.send(httpHeader,strlen(httpHeader));
client.send(buffer,n);
break;
} else {
buffer[n]=0;
}
if (!strncmp(buffer, "GET ", 4)) {
uristr = buffer + 4;
eou = strstr(uristr, " ");
if (eou == NULL) {
sprintf(httpHeader,"HTTP/1.1 400 Bad Request \r\nContent-Type: text\r\nConnection: Close\r\n\r\n");
client.send(httpHeader,strlen(httpHeader));
client.send(buffer,n);
} else {
*eou = 0;
show_page(uristr);
}
}
}
client.close();
}
}