Ilya I / Mbed 2 deprecated pub_iva2k_ethsntp

Example of HTTPServer with additional features: * SNTPClient, DST rules * Link status indication * Local or SDCard-based WebServer * RPC-able class * Static and Dynamic HTML page

Dependencies:   mbed

main.cpp

Committer:
iva2k
Date:
2010-01-12
Revision:
2:360fda42fefd
Parent:
1:ec4170739967

File content as of revision 2:360fda42fefd:

// Written by IVA2K
//
// Example of HTTPServer with additional features:
// * SNTP Client (Simple NTP)
// * Link status indication (LED4 or RJ45 socket LED on MBED-BoB2-mod)
// * Local file system (create index.htm page on MBED!)
// * SD-based WebServer
// * RPC-able class (myrpc, allows remote function call that blinks LED1 N times)
// * Static HTML page
// * Dynamic HTML page
//
// Instructions:
// 1  Plug MBED into MBED-BoB2 (or other ETH connector breakout)
// 2  Plug ETH connector into your network (needs DHCP to get IP address and Internet connection)
// 3  Power up MBED using USB cable
// 4  Install MBED serial driver (http://mbed.org/handbook/SerialPC)
// 5  Copy compiled .bin to your MBED (make sure target device selected in the compiler is correct)
// 6  Open terminal on the mbed serial port
// 7  Push MBED reset button
// 8  Terminal will display info message with mac address, followed by IP address (if connection succeeds)
//    in the following items, replace 10.0.0.321 with actual MBED IP address from the terminal
// 9  Open browser and enter the following URL:
//    http://10.0.0.321/rpc/myrpc1/blink,10
// 10 MBED will blink the LED 10 times
// 11 Open browser and enter the following URL:
//    http://10.0.0.321/rpc/myrpc1/gettime
// 12 The browser will show date and time from the MBED synchronized to NTP server
// 13 Open browser and enter the following URL:
//    http://10.0.0.321/static.htm
// 14 The browser will show static HTML page
// 15 Open browser and enter the following URL:
//    http://10.0.0.321/dynamic.htm
// 16 The browser will show dynamic HTML page
// 17 Create a simple index.htm page on the MBED
// 18 Open browser and enter the following URL:
//    http://10.0.0.321
// 19 The browser will show index HTML page
// 20 Create a simple index.htm page on a micro SD card, plug the card into MBED-BoB2
// 21 Open browser and enter the following URL:
//    http://10.0.0.321
// 22 The browser will show index HTML page from SD card
// 23 Optionally, create file "sntp.ini" on MBED or SD card. Copy-paste SNTP configuration from the terminal into this file and modify to your needs.
//
// Notes: there are still some bugs in HTTPServer code. 
// To help fight some of them, copy a valid favicon.ico (a 16x16 icon) file to MBED.
//

#include "mbed.h"
#include "SDFileSystem.h"
#include "HTTPServer.h"
#include "HTTPRPC.h"
#include "HTTPFS.h"
#include "HTTPStaticPage.h"
#include "HTTPDynamicPage.h"
#include "HTTPLinkStatus.h"
#include "SNTPClient.h"

#define CLS "\033[2J"

const char content[] = 
"<HTML>"
"<HEAD>"
"<title>Static Page</title>"
"</HEAD>"
"<BODY>"
"<H1>Hello World</H1>"
"<p>Page generated statically from code.</p>"
"</BODY></HTML>"
;

#define MAX_DYNAMIC_CONTENT_LEN     2048
char dynamic_content[MAX_DYNAMIC_CONTENT_LEN];

const char content_fmt[] = 
"<HTML>"
"<HEAD>"
"<title>Dynamic Page</title>"
"</HEAD>"
"<BODY>"
"<H1>Hello World</H1>"
"<p>Page generated dynamically from code.</p>"
"<p>URL=%s</p>"
"<p>Header Fields=%s</p>"
"</BODY></HTML>"
;

DigitalOut led1(LED1, "led1");
DigitalOut led2(LED2, "led2");
DigitalOut led3(LED3, "led3");
DigitalOut led4(LED4, "led4");
DigitalIn sw1(p9, "sw1");
DigitalIn sw2(p10, "sw2");
LocalFileSystem local("local");
SDFileSystem sd(p5, p6, p7, p8, "sd");		// MBED-BoB2

#include "myrpc.h"
myrpc myrpc1(LED1, "myrpc1");

extern Ethernet eth;        // eth is defined elsewhere, avoid compiler error.
Serial pc(USBTX, USBRX);
int gDebug=1;
float gWait = 0.005;        // Main loop wait timeout

HTTPStatus myDynamicPage(HTTPConnection *con, HTTPDynamicPageData *pd) {
#if 0
    // Static example. With this, we don't really need HTTPStaticPage
    pd->size = 0;    // let it measure our page
    pd->page = (char*)content;    // Nothing dynamic about that yet, but we can now get loose here.
    pd->page_free = NULL;    // No mem free() needed
#elif 0
    // Dynamic example, static buffer
    pd->size = sprintf(dynamic_content, content_fmt, con->getURL(), con->getHeaderFields());
    pd->page = (char*)dynamic_content;
    pd->page_free = NULL;    // No mem free() needed
if(pd->size > sizeof(dynamic_content)) printf("ASSERTION FAILED: %s:%d\r\n", __FILE__, __LINE__);    // Buffer overrun
#else
    // Dynamic example, dynamic buffer
    int size = sizeof(content_fmt) + 512;    // Just guess how much the data will expand
    char *buf = (char *)malloc(size);
    if (buf) {
        pd->size = sprintf(buf, content_fmt, con->getURL(), con->getHeaderFields());
        pd->page = buf;
        pd->page_free = &free;    // Use free() when done
if(pd->size > size) printf("ASSERTION FAILED: %s:%d\r\n", __FILE__, __LINE__);    // Buffer overrun
#endif
    }
    return HTTP_OK;
}

int main(void) {
    char mac[6];
    int sw1_old=0, sw2_old=0;
    bool use_sd = false;

    led1=1;
    led2=1;
    led3=1;
    led4=1;

    // Start RTC
    time_t seconds = time(NULL);
    if (seconds == (unsigned)-1 || seconds == 0) {
      seconds = 1256729737;     // Set RTC time to Wed, 28 Oct 2009 11:35:37
      set_time(seconds);
      printf("RTC initialized, start time %d seconds\r\n", seconds);
    }

    char *hostname = "mbed";
    HTTPServer http(hostname);    // Use DHCP
    http.timeout(10000);    // Sets the timout for a HTTP request.  The timout is the time which is allowed to spent between two incomming TCP packets.  If the time is passed the connection will be closed.

    eth.address(mac);
    pc.printf(CLS "\r\n\r\nHTTPServer \"%s\" started\r\nMAC %02X:%02X:%02X:%02X:%02X:%02X\r\n%s",
        hostname, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
        gDebug?"Debug is ON\r\n":""
    );

    Base::add_rpc_class<AnalogIn>();
    Base::add_rpc_class<AnalogOut>();
    Base::add_rpc_class<DigitalIn>();
    Base::add_rpc_class<DigitalOut>();
    Base::add_rpc_class<PwmOut>();
    Base::add_rpc_class<Timer>();
    Base::add_rpc_class<SPI>();
    Base::add_rpc_class<BusOut>();
    Base::add_rpc_class<BusIn>();
    Base::add_rpc_class<myrpc>();
    led1=0;

    // Check if we can use SD card for the web server
    FILE *fp = fopen("/sd/index.htm", "r");
    if (fp == NULL) {
        if (gDebug) printf("DEBUG: No SD card found or no index.htm file - using LocalFilesystem for WebServer.\r\n");
    } else {
        use_sd = true;
        fclose(fp);
        if (gDebug) printf("DEBUG: Found SD card with index.htm file - using SD for WebServer.\r\n");
    }

    if (0 != SNTPReadIniFile("/sd/sntp.ini") )
        SNTPReadIniFile("/local/sntp.ini");
    SNTPWriteIniFile(stdout);


    http.addHandler(new HTTPLinkStatus("/", 
#if MBED_BOB2
	  p25, p26,			// MBED-BoB2-mods
#else
      LED3, LED4,
#endif
	  0.1,
      /*do_urlfile*/ true, /*do_link_printf*/ true, /*do_log_printf*/ false, 
      /*log_file*/ ( (gDebug>1) ? (use_sd ? "/sd/httpd.log" : "/local/httpd.log") : NULL)
    ));    // Should be the first handler to get a preview of all requests
    http.addHandler(new HTTPRPC());
    led2=0;

    // Static/Dynamic pages must be installed before FileSystem on /
    http.addHandler(new HTTPStaticPage("/static.htm", content, strlen(content)));
    http.addHandler(new HTTPDynamicPage("/dynamic.htm", &myDynamicPage));
    http.addHandler(new HTTPFileSystemHandler("/", use_sd ? "/sd/" : "/local/"));
    led3=0;

// FIXME: BUG If eth is not plugged, http.bind() hangs!
    http.bind();

    SNTPClientInit();
    led4 = 0;

    pc.printf("\r");    // Add linefeed for stupid Hyperterminal
    while(1) {
        http.poll();    // Have to call this method at least every 250ms to let the http server run.
        if (sw1 & !sw1_old) {
            printf("SW1\r\n");
        }
        if (sw2 && !sw2_old) {
            printf(CLS "SW2\r\n");
        }
        sw1_old = sw1;
        sw2_old = sw2;
		wait(gWait);
    }
}

//END