pub_iva2k_ethsntp - Example of HTTPServer with additional features: …

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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@2:360fda42fefd, 2010-01-12 (annotated)

Committer:: iva2k
Date:: Tue Jan 12 07:41:55 2010 +0000
Revision:: 2:360fda42fefd
Parent:: 1:ec4170739967

Who changed what in which revision?

User	Revision	Line number	New contents of line
iva2k	0:886e4b3119ad	1	// Written by IVA2K
iva2k	0:886e4b3119ad	2	//
iva2k	0:886e4b3119ad	3	// Example of HTTPServer with additional features:
iva2k	0:886e4b3119ad	4	// * SNTP Client (Simple NTP)
iva2k	0:886e4b3119ad	5	// * Link status indication (LED4 or RJ45 socket LED on MBED-BoB2-mod)
iva2k	0:886e4b3119ad	6	// * Local file system (create index.htm page on MBED!)
iva2k	0:886e4b3119ad	7	// * SD-based WebServer
iva2k	0:886e4b3119ad	8	// * RPC-able class (myrpc, allows remote function call that blinks LED1 N times)
iva2k	0:886e4b3119ad	9	// * Static HTML page
iva2k	0:886e4b3119ad	10	// * Dynamic HTML page
iva2k	0:886e4b3119ad	11	//
iva2k	0:886e4b3119ad	12	// Instructions:
iva2k	0:886e4b3119ad	13	// 1 Plug MBED into MBED-BoB2 (or other ETH connector breakout)
iva2k	0:886e4b3119ad	14	// 2 Plug ETH connector into your network (needs DHCP to get IP address and Internet connection)
iva2k	0:886e4b3119ad	15	// 3 Power up MBED using USB cable
iva2k	0:886e4b3119ad	16	// 4 Install MBED serial driver (http://mbed.org/handbook/SerialPC)
iva2k	0:886e4b3119ad	17	// 5 Copy compiled .bin to your MBED (make sure target device selected in the compiler is correct)
iva2k	0:886e4b3119ad	18	// 6 Open terminal on the mbed serial port
iva2k	0:886e4b3119ad	19	// 7 Push MBED reset button
iva2k	0:886e4b3119ad	20	// 8 Terminal will display info message with mac address, followed by IP address (if connection succeeds)
iva2k	0:886e4b3119ad	21	// in the following items, replace 10.0.0.321 with actual MBED IP address from the terminal
iva2k	0:886e4b3119ad	22	// 9 Open browser and enter the following URL:
iva2k	0:886e4b3119ad	23	// http://10.0.0.321/rpc/myrpc1/blink,10
iva2k	0:886e4b3119ad	24	// 10 MBED will blink the LED 10 times
iva2k	0:886e4b3119ad	25	// 11 Open browser and enter the following URL:
iva2k	0:886e4b3119ad	26	// http://10.0.0.321/rpc/myrpc1/gettime
iva2k	0:886e4b3119ad	27	// 12 The browser will show date and time from the MBED synchronized to NTP server
iva2k	0:886e4b3119ad	28	// 13 Open browser and enter the following URL:
iva2k	0:886e4b3119ad	29	// http://10.0.0.321/static.htm
iva2k	0:886e4b3119ad	30	// 14 The browser will show static HTML page
iva2k	0:886e4b3119ad	31	// 15 Open browser and enter the following URL:
iva2k	0:886e4b3119ad	32	// http://10.0.0.321/dynamic.htm
iva2k	0:886e4b3119ad	33	// 16 The browser will show dynamic HTML page
iva2k	0:886e4b3119ad	34	// 17 Create a simple index.htm page on the MBED
iva2k	0:886e4b3119ad	35	// 18 Open browser and enter the following URL:
iva2k	0:886e4b3119ad	36	// http://10.0.0.321
iva2k	0:886e4b3119ad	37	// 19 The browser will show index HTML page
iva2k	0:886e4b3119ad	38	// 20 Create a simple index.htm page on a micro SD card, plug the card into MBED-BoB2
iva2k	0:886e4b3119ad	39	// 21 Open browser and enter the following URL:
iva2k	0:886e4b3119ad	40	// http://10.0.0.321
iva2k	0:886e4b3119ad	41	// 22 The browser will show index HTML page from SD card
iva2k	0:886e4b3119ad	42	// 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.
iva2k	0:886e4b3119ad	43	//
iva2k	0:886e4b3119ad	44	// Notes: there are still some bugs in HTTPServer code.
iva2k	0:886e4b3119ad	45	// To help fight some of them, copy a valid favicon.ico (a 16x16 icon) file to MBED.
iva2k	0:886e4b3119ad	46	//
iva2k	0:886e4b3119ad	47
iva2k	0:886e4b3119ad	48	#include "mbed.h"
iva2k	0:886e4b3119ad	49	#include "SDFileSystem.h"
iva2k	0:886e4b3119ad	50	#include "HTTPServer.h"
iva2k	0:886e4b3119ad	51	#include "HTTPRPC.h"
iva2k	0:886e4b3119ad	52	#include "HTTPFS.h"
iva2k	0:886e4b3119ad	53	#include "HTTPStaticPage.h"
iva2k	0:886e4b3119ad	54	#include "HTTPDynamicPage.h"
iva2k	0:886e4b3119ad	55	#include "HTTPLinkStatus.h"
iva2k	0:886e4b3119ad	56	#include "SNTPClient.h"
iva2k	0:886e4b3119ad	57
iva2k	0:886e4b3119ad	58	#define CLS "\033[2J"
iva2k	0:886e4b3119ad	59
iva2k	0:886e4b3119ad	60	const char content[] =
iva2k	0:886e4b3119ad	61	"<HTML>"
iva2k	0:886e4b3119ad	62	"<HEAD>"
iva2k	0:886e4b3119ad	63	"<title>Static Page</title>"
iva2k	0:886e4b3119ad	64	"</HEAD>"
iva2k	0:886e4b3119ad	65	"<BODY>"
iva2k	0:886e4b3119ad	66	"<H1>Hello World</H1>"
iva2k	0:886e4b3119ad	67	"<p>Page generated statically from code.</p>"
iva2k	0:886e4b3119ad	68	"</BODY></HTML>"
iva2k	0:886e4b3119ad	69	;
iva2k	0:886e4b3119ad	70
iva2k	0:886e4b3119ad	71	#define MAX_DYNAMIC_CONTENT_LEN 2048
iva2k	0:886e4b3119ad	72	char dynamic_content[MAX_DYNAMIC_CONTENT_LEN];
iva2k	0:886e4b3119ad	73
iva2k	0:886e4b3119ad	74	const char content_fmt[] =
iva2k	0:886e4b3119ad	75	"<HTML>"
iva2k	0:886e4b3119ad	76	"<HEAD>"
iva2k	0:886e4b3119ad	77	"<title>Dynamic Page</title>"
iva2k	0:886e4b3119ad	78	"</HEAD>"
iva2k	0:886e4b3119ad	79	"<BODY>"
iva2k	0:886e4b3119ad	80	"<H1>Hello World</H1>"
iva2k	0:886e4b3119ad	81	"<p>Page generated dynamically from code.</p>"
iva2k	0:886e4b3119ad	82	"<p>URL=%s</p>"
iva2k	0:886e4b3119ad	83	"<p>Header Fields=%s</p>"
iva2k	0:886e4b3119ad	84	"</BODY></HTML>"
iva2k	0:886e4b3119ad	85	;
iva2k	0:886e4b3119ad	86
iva2k	0:886e4b3119ad	87	DigitalOut led1(LED1, "led1");
iva2k	0:886e4b3119ad	88	DigitalOut led2(LED2, "led2");
iva2k	0:886e4b3119ad	89	DigitalOut led3(LED3, "led3");
iva2k	0:886e4b3119ad	90	DigitalOut led4(LED4, "led4");
iva2k	0:886e4b3119ad	91	DigitalIn sw1(p9, "sw1");
iva2k	0:886e4b3119ad	92	DigitalIn sw2(p10, "sw2");
iva2k	0:886e4b3119ad	93	LocalFileSystem local("local");
iva2k	0:886e4b3119ad	94	SDFileSystem sd(p5, p6, p7, p8, "sd"); // MBED-BoB2
iva2k	0:886e4b3119ad	95
iva2k	0:886e4b3119ad	96	#include "myrpc.h"
iva2k	0:886e4b3119ad	97	myrpc myrpc1(LED1, "myrpc1");
iva2k	0:886e4b3119ad	98
iva2k	0:886e4b3119ad	99	extern Ethernet eth; // eth is defined elsewhere, avoid compiler error.
iva2k	0:886e4b3119ad	100	Serial pc(USBTX, USBRX);
iva2k	0:886e4b3119ad	101	int gDebug=1;
iva2k	0:886e4b3119ad	102	float gWait = 0.005; // Main loop wait timeout
iva2k	0:886e4b3119ad	103
iva2k	0:886e4b3119ad	104	HTTPStatus myDynamicPage(HTTPConnection con, HTTPDynamicPageData pd) {
iva2k	0:886e4b3119ad	105	#if 0
iva2k	0:886e4b3119ad	106	// Static example. With this, we don't really need HTTPStaticPage
iva2k	0:886e4b3119ad	107	pd->size = 0; // let it measure our page
iva2k	0:886e4b3119ad	108	pd->page = (char*)content; // Nothing dynamic about that yet, but we can now get loose here.
iva2k	0:886e4b3119ad	109	pd->page_free = NULL; // No mem free() needed
iva2k	0:886e4b3119ad	110	#elif 0
iva2k	0:886e4b3119ad	111	// Dynamic example, static buffer
iva2k	0:886e4b3119ad	112	pd->size = sprintf(dynamic_content, content_fmt, con->getURL(), con->getHeaderFields());
iva2k	0:886e4b3119ad	113	pd->page = (char*)dynamic_content;
iva2k	0:886e4b3119ad	114	pd->page_free = NULL; // No mem free() needed
iva2k	0:886e4b3119ad	115	if(pd->size > sizeof(dynamic_content)) printf("ASSERTION FAILED: %s:%d\r\n", __FILE__, __LINE__); // Buffer overrun
iva2k	0:886e4b3119ad	116	#else
iva2k	0:886e4b3119ad	117	// Dynamic example, dynamic buffer
iva2k	0:886e4b3119ad	118	int size = sizeof(content_fmt) + 512; // Just guess how much the data will expand
iva2k	0:886e4b3119ad	119	char buf = (char )malloc(size);
iva2k	0:886e4b3119ad	120	if (buf) {
iva2k	0:886e4b3119ad	121	pd->size = sprintf(buf, content_fmt, con->getURL(), con->getHeaderFields());
iva2k	0:886e4b3119ad	122	pd->page = buf;
iva2k	0:886e4b3119ad	123	pd->page_free = &free; // Use free() when done
iva2k	0:886e4b3119ad	124	if(pd->size > size) printf("ASSERTION FAILED: %s:%d\r\n", __FILE__, __LINE__); // Buffer overrun
iva2k	0:886e4b3119ad	125	#endif
iva2k	0:886e4b3119ad	126	}
iva2k	0:886e4b3119ad	127	return HTTP_OK;
iva2k	0:886e4b3119ad	128	}
iva2k	0:886e4b3119ad	129
iva2k	0:886e4b3119ad	130	int main(void) {
iva2k	0:886e4b3119ad	131	char mac[6];
iva2k	0:886e4b3119ad	132	int sw1_old=0, sw2_old=0;
iva2k	0:886e4b3119ad	133	bool use_sd = false;
iva2k	0:886e4b3119ad	134
iva2k	0:886e4b3119ad	135	led1=1;
iva2k	0:886e4b3119ad	136	led2=1;
iva2k	0:886e4b3119ad	137	led3=1;
iva2k	0:886e4b3119ad	138	led4=1;
iva2k	0:886e4b3119ad	139
iva2k	0:886e4b3119ad	140	// Start RTC
iva2k	0:886e4b3119ad	141	time_t seconds = time(NULL);
iva2k	0:886e4b3119ad	142	if (seconds == (unsigned)-1 \|\| seconds == 0) {
iva2k	0:886e4b3119ad	143	seconds = 1256729737; // Set RTC time to Wed, 28 Oct 2009 11:35:37
iva2k	0:886e4b3119ad	144	set_time(seconds);
iva2k	0:886e4b3119ad	145	printf("RTC initialized, start time %d seconds\r\n", seconds);
iva2k	0:886e4b3119ad	146	}
iva2k	0:886e4b3119ad	147
iva2k	0:886e4b3119ad	148	char *hostname = "mbed";
iva2k	0:886e4b3119ad	149	HTTPServer http(hostname); // Use DHCP
iva2k	0:886e4b3119ad	150	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.
iva2k	0:886e4b3119ad	151
iva2k	0:886e4b3119ad	152	eth.address(mac);
iva2k	0:886e4b3119ad	153	pc.printf(CLS "\r\n\r\nHTTPServer \"%s\" started\r\nMAC %02X:%02X:%02X:%02X:%02X:%02X\r\n%s",
iva2k	0:886e4b3119ad	154	hostname, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
iva2k	0:886e4b3119ad	155	gDebug?"Debug is ON\r\n":""
iva2k	0:886e4b3119ad	156	);
iva2k	0:886e4b3119ad	157
iva2k	0:886e4b3119ad	158	Base::add_rpc_class<AnalogIn>();
iva2k	0:886e4b3119ad	159	Base::add_rpc_class<AnalogOut>();
iva2k	0:886e4b3119ad	160	Base::add_rpc_class<DigitalIn>();
iva2k	0:886e4b3119ad	161	Base::add_rpc_class<DigitalOut>();
iva2k	0:886e4b3119ad	162	Base::add_rpc_class<PwmOut>();
iva2k	0:886e4b3119ad	163	Base::add_rpc_class<Timer>();
iva2k	0:886e4b3119ad	164	Base::add_rpc_class<SPI>();
iva2k	0:886e4b3119ad	165	Base::add_rpc_class<BusOut>();
iva2k	0:886e4b3119ad	166	Base::add_rpc_class<BusIn>();
iva2k	0:886e4b3119ad	167	Base::add_rpc_class<myrpc>();
iva2k	0:886e4b3119ad	168	led1=0;
iva2k	0:886e4b3119ad	169
iva2k	0:886e4b3119ad	170	// Check if we can use SD card for the web server
iva2k	0:886e4b3119ad	171	FILE *fp = fopen("/sd/index.htm", "r");
iva2k	0:886e4b3119ad	172	if (fp == NULL) {
iva2k	0:886e4b3119ad	173	if (gDebug) printf("DEBUG: No SD card found or no index.htm file - using LocalFilesystem for WebServer.\r\n");
iva2k	0:886e4b3119ad	174	} else {
iva2k	0:886e4b3119ad	175	use_sd = true;
iva2k	0:886e4b3119ad	176	fclose(fp);
iva2k	0:886e4b3119ad	177	if (gDebug) printf("DEBUG: Found SD card with index.htm file - using SD for WebServer.\r\n");
iva2k	0:886e4b3119ad	178	}
iva2k	0:886e4b3119ad	179
iva2k	0:886e4b3119ad	180	if (0 != SNTPReadIniFile("/sd/sntp.ini") )
iva2k	0:886e4b3119ad	181	SNTPReadIniFile("/local/sntp.ini");
iva2k	0:886e4b3119ad	182	SNTPWriteIniFile(stdout);
iva2k	0:886e4b3119ad	183
iva2k	0:886e4b3119ad	184
iva2k	0:886e4b3119ad	185	http.addHandler(new HTTPLinkStatus("/",
iva2k	1:ec4170739967	186	#if MBED_BOB2
iva2k	0:886e4b3119ad	187	p25, p26, // MBED-BoB2-mods
iva2k	0:886e4b3119ad	188	#else
iva2k	0:886e4b3119ad	189	LED3, LED4,
iva2k	0:886e4b3119ad	190	#endif
iva2k	0:886e4b3119ad	191	0.1,
iva2k	0:886e4b3119ad	192	/do_urlfile/ true, /do_link_printf/ true, /do_log_printf/ false,
iva2k	0:886e4b3119ad	193	/log_file/ ( (gDebug>1) ? (use_sd ? "/sd/httpd.log" : "/local/httpd.log") : NULL)
iva2k	0:886e4b3119ad	194	)); // Should be the first handler to get a preview of all requests
iva2k	0:886e4b3119ad	195	http.addHandler(new HTTPRPC());
iva2k	0:886e4b3119ad	196	led2=0;
iva2k	0:886e4b3119ad	197
iva2k	0:886e4b3119ad	198	// Static/Dynamic pages must be installed before FileSystem on /
iva2k	0:886e4b3119ad	199	http.addHandler(new HTTPStaticPage("/static.htm", content, strlen(content)));
iva2k	0:886e4b3119ad	200	http.addHandler(new HTTPDynamicPage("/dynamic.htm", &myDynamicPage));
iva2k	0:886e4b3119ad	201	http.addHandler(new HTTPFileSystemHandler("/", use_sd ? "/sd/" : "/local/"));
iva2k	0:886e4b3119ad	202	led3=0;
iva2k	0:886e4b3119ad	203
iva2k	0:886e4b3119ad	204	// FIXME: BUG If eth is not plugged, http.bind() hangs!
iva2k	0:886e4b3119ad	205	http.bind();
iva2k	0:886e4b3119ad	206
iva2k	0:886e4b3119ad	207	SNTPClientInit();
iva2k	0:886e4b3119ad	208	led4 = 0;
iva2k	0:886e4b3119ad	209
iva2k	0:886e4b3119ad	210	pc.printf("\r"); // Add linefeed for stupid Hyperterminal
iva2k	0:886e4b3119ad	211	while(1) {
iva2k	0:886e4b3119ad	212	http.poll(); // Have to call this method at least every 250ms to let the http server run.
iva2k	0:886e4b3119ad	213	if (sw1 & !sw1_old) {
iva2k	0:886e4b3119ad	214	printf("SW1\r\n");
iva2k	0:886e4b3119ad	215	}
iva2k	0:886e4b3119ad	216	if (sw2 && !sw2_old) {
iva2k	0:886e4b3119ad	217	printf(CLS "SW2\r\n");
iva2k	0:886e4b3119ad	218	}
iva2k	0:886e4b3119ad	219	sw1_old = sw1;
iva2k	0:886e4b3119ad	220	sw2_old = sw2;
iva2k	0:886e4b3119ad	221	wait(gWait);
iva2k	0:886e4b3119ad	222	}
iva2k	0:886e4b3119ad	223	}
iva2k	0:886e4b3119ad	224
iva2k	0:886e4b3119ad	225	//END

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	03 Jan 2010
Imports:	79
Forks:	0
Commits:	3
Dependents:	0
Dependencies:	1
Followers:	5

main.cpp@2:360fda42fefd, 2010-01-12 (annotated)

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