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Ilya I / Mbed 2 deprecated pub_iva2k_HTTPDynamicPage

main.cpp@0:b0aa20381646, 2009-12-10 (annotated)

Committer:: iva2k
Date:: Thu Dec 10 08:59:18 2009 +0000
Revision:: 0:b0aa20381646

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User	Revision	Line number	New contents of line
iva2k	0:b0aa20381646	1	#include "mbed.h"
iva2k	0:b0aa20381646	2	#include "HTTPServer.h"
iva2k	0:b0aa20381646	3	#include "HTTPFS.h"
iva2k	0:b0aa20381646	4	#include "HTTPDynamicPage.h"
iva2k	0:b0aa20381646	5
iva2k	0:b0aa20381646	6	#define MAX_DYNAMIC_CONTENT_LEN 2048
iva2k	0:b0aa20381646	7	char dynamic_content[MAX_DYNAMIC_CONTENT_LEN];
iva2k	0:b0aa20381646	8
iva2k	0:b0aa20381646	9	const char content_fmt[] =
iva2k	0:b0aa20381646	10	"<HTML>"
iva2k	0:b0aa20381646	11	"<HEAD>"
iva2k	0:b0aa20381646	12	"<title>Dynamic Page</title>"
iva2k	0:b0aa20381646	13	"</HEAD>"
iva2k	0:b0aa20381646	14	"<BODY>"
iva2k	0:b0aa20381646	15	"<H1>Hello World</H1>"
iva2k	0:b0aa20381646	16	"<p>Page generated dynamically from code.</p>"
iva2k	0:b0aa20381646	17	"<p>URL=%s</p>"
iva2k	0:b0aa20381646	18	"<p>Header Fields=%s</p>"
iva2k	0:b0aa20381646	19	"</BODY></HTML>"
iva2k	0:b0aa20381646	20	;
iva2k	0:b0aa20381646	21
iva2k	0:b0aa20381646	22	DigitalOut led1(LED1, "led1");
iva2k	0:b0aa20381646	23	DigitalOut led2(LED2, "led2");
iva2k	0:b0aa20381646	24	DigitalOut led3(LED3, "led3");
iva2k	0:b0aa20381646	25	DigitalOut led4(LED4, "led4");
iva2k	0:b0aa20381646	26
iva2k	0:b0aa20381646	27	#define LED_ETH_LINK(val) do { led4=val; } while (0)
iva2k	0:b0aa20381646	28
iva2k	0:b0aa20381646	29	extern Ethernet eth; // eth is defined elsewhere, avoid compiler error.
iva2k	0:b0aa20381646	30	Serial pc(USBTX, USBRX);
iva2k	0:b0aa20381646	31	Ticker eth_timer;
iva2k	0:b0aa20381646	32
iva2k	0:b0aa20381646	33	void eth_link_status() {
iva2k	0:b0aa20381646	34	static bool first = true; // Avoid duplicate IP report on the very first pass
iva2k	0:b0aa20381646	35	static int eth_link = -1; // Last state of eth link
iva2k	0:b0aa20381646	36	static unsigned int old_ip = 0; // Last IP address
iva2k	0:b0aa20381646	37	int new_link = eth.link();
iva2k	0:b0aa20381646	38	if (eth_link != new_link) {
iva2k	0:b0aa20381646	39	if (new_link) {
iva2k	0:b0aa20381646	40	// From http://mbed.org/forum/post/909/
iva2k	0:b0aa20381646	41	NetServer *net = NetServer::get();
iva2k	0:b0aa20381646	42	struct ip_addr ip = net->getIPAddr();
iva2k	0:b0aa20381646	43	// struct ip_addr gw = net->getGateway();
iva2k	0:b0aa20381646	44	// struct ip_addr nm = net->getNetmask();
iva2k	0:b0aa20381646	45	// struct ip_addr dns = net->getDNS1();
iva2k	0:b0aa20381646	46	if (!first) printf("IP: %hhu.%hhu.%hhu.%hhu\r\n", (ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF);
iva2k	0:b0aa20381646	47	first = false;
iva2k	0:b0aa20381646	48	if (1 && ip.addr != old_ip) {
iva2k	0:b0aa20381646	49	// Create a link file to our IP.
iva2k	0:b0aa20381646	50	FILE *fp = fopen("/local/Start.url", "w"); // Create link to own IP
iva2k	0:b0aa20381646	51	if (fp) {
iva2k	0:b0aa20381646	52	fprintf(fp, "[InternetShortcut]\r\nURL=http://%hhu.%hhu.%hhu.%hhu/\r\n", (ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF);
iva2k	0:b0aa20381646	53	fclose(fp);
iva2k	0:b0aa20381646	54	old_ip = ip.addr;
iva2k	0:b0aa20381646	55	}
iva2k	0:b0aa20381646	56	}
iva2k	0:b0aa20381646	57
iva2k	0:b0aa20381646	58	}
iva2k	0:b0aa20381646	59	else {
iva2k	0:b0aa20381646	60	printf("IP: <link down>\r\n");
iva2k	0:b0aa20381646	61	}
iva2k	0:b0aa20381646	62	LED_ETH_LINK(new_link);
iva2k	0:b0aa20381646	63	eth_link = new_link;
iva2k	0:b0aa20381646	64	}
iva2k	0:b0aa20381646	65	}
iva2k	0:b0aa20381646	66
iva2k	0:b0aa20381646	67	HTTPStatus myDynamicPage(HTTPConnection con, HTTPDynamicPageData pd) {
iva2k	0:b0aa20381646	68	#if 0
iva2k	0:b0aa20381646	69	// Static example. With this, we don't really need HTTPStaticPage
iva2k	0:b0aa20381646	70	pd->size = 0; // let it measure our page
iva2k	0:b0aa20381646	71	pd->page = (char*)content; // Nothing dynamic about that yet, but we can now get loose here.
iva2k	0:b0aa20381646	72	pd->page_free = NULL; // No mem free() needed
iva2k	0:b0aa20381646	73	#elif 0
iva2k	0:b0aa20381646	74	// Dynamic example, static buffer
iva2k	0:b0aa20381646	75	pd->size = sprintf(dynamic_content, content_fmt, con->getURL(), con->getHeaderFields());
iva2k	0:b0aa20381646	76	pd->page = (char*)dynamic_content;
iva2k	0:b0aa20381646	77	pd->page_free = NULL; // No mem free() needed
iva2k	0:b0aa20381646	78	if(pd->size > sizeof(dynamic_content)) printf("ASSERTION FAILED: %s:%d\r\n", __FILE__, __LINE__); // Buffer overrun
iva2k	0:b0aa20381646	79	#else
iva2k	0:b0aa20381646	80	// Dynamic example, dynamic buffer
iva2k	0:b0aa20381646	81	int size = sizeof(content_fmt) + 512; // Just guess how much the data will expand
iva2k	0:b0aa20381646	82	char buf = (char )malloc(size);
iva2k	0:b0aa20381646	83	if (buf) {
iva2k	0:b0aa20381646	84	pd->size = sprintf(buf, content_fmt, con->getURL(), con->getHeaderFields());
iva2k	0:b0aa20381646	85	pd->page = buf;
iva2k	0:b0aa20381646	86	pd->page_free = &free; // Use free() when done
iva2k	0:b0aa20381646	87	if(pd->size > size) printf("ASSERTION FAILED: %s:%d\r\n", __FILE__, __LINE__); // Buffer overrun
iva2k	0:b0aa20381646	88	#endif
iva2k	0:b0aa20381646	89	}
iva2k	0:b0aa20381646	90	return HTTP_OK;
iva2k	0:b0aa20381646	91	}
iva2k	0:b0aa20381646	92
iva2k	0:b0aa20381646	93	int main(void) {
iva2k	0:b0aa20381646	94	char mac[6];
iva2k	0:b0aa20381646	95
iva2k	0:b0aa20381646	96	led1=1;
iva2k	0:b0aa20381646	97	led2=1;
iva2k	0:b0aa20381646	98	led3=1;
iva2k	0:b0aa20381646	99	led4=1;
iva2k	0:b0aa20381646	100
iva2k	0:b0aa20381646	101	char *hostname = "mbed";
iva2k	0:b0aa20381646	102	HTTPServer http(hostname); // Use DHCP
iva2k	0:b0aa20381646	103	http.timeout(60000); // Sets the timout for a HTTP request. The timout is the time wich is allowed to spent between two incomming TCP packets. If the time is passed the connection will be closed.
iva2k	0:b0aa20381646	104
iva2k	0:b0aa20381646	105	eth.address(mac);
iva2k	0:b0aa20381646	106	pc.printf("\r\n\r\nHTTPServer \"%s\" started\r\nMAC %02X:%02X:%02X:%02X:%02X:%02X\r\n",
iva2k	0:b0aa20381646	107	hostname, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
iva2k	0:b0aa20381646	108
iva2k	0:b0aa20381646	109	led1=0;
iva2k	0:b0aa20381646	110
iva2k	0:b0aa20381646	111	led2=0;
iva2k	0:b0aa20381646	112
iva2k	0:b0aa20381646	113	http.addHandler(new HTTPDynamicPage("/dynamic.htm", &myDynamicPage));
iva2k	0:b0aa20381646	114	led3=0;
iva2k	0:b0aa20381646	115
iva2k	0:b0aa20381646	116	// FIXME: BUG If eth is not plugged, http.bind() hangs for awhile!
iva2k	0:b0aa20381646	117	http.bind();
iva2k	0:b0aa20381646	118
iva2k	0:b0aa20381646	119	led4 = 0;
iva2k	0:b0aa20381646	120	eth_timer.attach(&eth_link_status, 0.1);
iva2k	0:b0aa20381646	121	while(1) {
iva2k	0:b0aa20381646	122	http.poll(); // Have to call this method at least every 250ms to let the http server run.
iva2k	0:b0aa20381646	123	wait(0.100);
iva2k	0:b0aa20381646	124	}
iva2k	0:b0aa20381646	125	}
iva2k	0:b0aa20381646	126
iva2k	0:b0aa20381646	127	//END

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	10 Dec 2009
Imports:	28
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	1

main.cpp@0:b0aa20381646, 2009-12-10 (annotated)

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