pub_iva2k_ethsntp - Example of HTTPServer with additional features: …

Users » iva2k » Code » pub_iva2k_ethsntp

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

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

Committer:: iva2k
Date:: Tue Jan 12 07:41:55 2010 +0000
Revision:: 2:360fda42fefd
Parent:: 0:886e4b3119ad

Who changed what in which revision?

User	Revision	Line number	New contents of line
iva2k	0:886e4b3119ad	1	// HTTPLinkStatus.h
iva2k	0:886e4b3119ad	2	// HTTP Server Logger class
iva2k	0:886e4b3119ad	3	//
iva2k	0:886e4b3119ad	4	// Provides:
iva2k	0:886e4b3119ad	5	// 1. ETH port link state monitor
iva2k	0:886e4b3119ad	6	// - lights LED for link
iva2k	0:886e4b3119ad	7	// - default: logs link state to stdout;
iva2k	0:886e4b3119ad	8	// - default: creates URL file on local filesystem (can be used to open browser to URL address)
iva2k	0:886e4b3119ad	9	// 2. HTTP activity monitor (does not react to non-http traffic)
iva2k	0:886e4b3119ad	10	// - blinks LED for activity / HTTP requests
iva2k	0:886e4b3119ad	11	// - optional: log activity to stdout
iva2k	0:886e4b3119ad	12	// - optional: log activity to file (file is opened for each log entry, so local file system can still be accessed via USB)
iva2k	0:886e4b3119ad	13	//
iva2k	0:886e4b3119ad	14
iva2k	0:886e4b3119ad	15	#ifndef HTTPLINKSTATUS_H
iva2k	0:886e4b3119ad	16	#define HTTPLINKSTATUS_H
iva2k	0:886e4b3119ad	17
iva2k	0:886e4b3119ad	18	#include "HTTPServer.h"
iva2k	0:886e4b3119ad	19
iva2k	0:886e4b3119ad	20	// FIXME: should we be able to get this from *con?
iva2k	0:886e4b3119ad	21	extern Ethernet eth; // eth is defined elsewhere, avoid compiler error.
iva2k	0:886e4b3119ad	22
iva2k	0:886e4b3119ad	23	namespace mbed {
iva2k	0:886e4b3119ad	24
iva2k	0:886e4b3119ad	25	class DigitalOutDelayed : public DigitalOut {
iva2k	0:886e4b3119ad	26	public:
iva2k	0:886e4b3119ad	27	DigitalOutDelayed(PinName pin, const char* name = NULL) : DigitalOut(pin, name) {}
iva2k	0:886e4b3119ad	28	void write(int value, float delay=0.0) {
iva2k	0:886e4b3119ad	29	_timeout.detach();
iva2k	0:886e4b3119ad	30	if (delay > 0.0) {
iva2k	0:886e4b3119ad	31	_delay_value = value;
iva2k	0:886e4b3119ad	32	_timeout.attach(this, &DigitalOutDelayed::_write_delayed, delay);
iva2k	0:886e4b3119ad	33	} else {
iva2k	0:886e4b3119ad	34	DigitalOut::write(value);
iva2k	0:886e4b3119ad	35	}
iva2k	0:886e4b3119ad	36	}
iva2k	0:886e4b3119ad	37	void write_us(int value, unsigned int delay_us=0) {
iva2k	0:886e4b3119ad	38	_timeout.detach();
iva2k	0:886e4b3119ad	39	if (delay_us > 0) {
iva2k	0:886e4b3119ad	40	_delay_value = value;
iva2k	0:886e4b3119ad	41	_timeout.attach_us(this, &DigitalOutDelayed::_write_delayed, delay_us);
iva2k	0:886e4b3119ad	42	} else {
iva2k	0:886e4b3119ad	43	DigitalOut::write(value);
iva2k	0:886e4b3119ad	44	}
iva2k	0:886e4b3119ad	45	}
iva2k	0:886e4b3119ad	46	#ifdef MBED_OPERATORS
iva2k	0:886e4b3119ad	47	using DigitalOut::operator = ;
iva2k	0:886e4b3119ad	48	using DigitalOut::operator int;
iva2k	0:886e4b3119ad	49	#endif
iva2k	0:886e4b3119ad	50
iva2k	0:886e4b3119ad	51	protected:
iva2k	0:886e4b3119ad	52	void _write_delayed(void) { DigitalOut::write(_delay_value); }
iva2k	0:886e4b3119ad	53	Timeout _timeout;
iva2k	0:886e4b3119ad	54	int _delay_value;
iva2k	0:886e4b3119ad	55	};
iva2k	0:886e4b3119ad	56
iva2k	0:886e4b3119ad	57	} // namespace mbed
iva2k	0:886e4b3119ad	58
iva2k	0:886e4b3119ad	59	class HTTPLinkStatus : public HTTPHandler {
iva2k	0:886e4b3119ad	60	public:
iva2k	0:886e4b3119ad	61	HTTPLinkStatus(const char *prefix, PinName link_led=NC, PinName act_led=NC, float poll_t = 0.1,
iva2k	0:886e4b3119ad	62	bool do_urlfile = true, bool do_link_printf = true, bool do_log_printf = false, const char* log_file = NULL
iva2k	0:886e4b3119ad	63	) :
iva2k	0:886e4b3119ad	64	HTTPHandler(prefix),
iva2k	0:886e4b3119ad	65	_link_led(link_led),
iva2k	0:886e4b3119ad	66	_act_led(act_led),
iva2k	0:886e4b3119ad	67	_linkstate(-1),
iva2k	0:886e4b3119ad	68	_first(true),
iva2k	0:886e4b3119ad	69	_our_ip(0),
iva2k	0:886e4b3119ad	70	_do_urlfile(do_urlfile),
iva2k	0:886e4b3119ad	71	_do_link_printf(do_link_printf),
iva2k	0:886e4b3119ad	72	_do_log_printf(do_log_printf),
iva2k	0:886e4b3119ad	73	_log_file(log_file)
iva2k	0:886e4b3119ad	74	{
iva2k	0:886e4b3119ad	75	if (poll_t > 0) _ticker.attach(this, &HTTPLinkStatus::_link_poll, poll_t);
iva2k	0:886e4b3119ad	76	}
iva2k	0:886e4b3119ad	77	HTTPLinkStatus(HTTPServer server, const char prefix, PinName link_led=NC, PinName act_led=NC, float poll_t = 0.1,
iva2k	0:886e4b3119ad	78	bool do_urlfile = true, bool do_link_printf = true, bool do_log_printf = false, const char* log_file = NULL
iva2k	0:886e4b3119ad	79	) :
iva2k	0:886e4b3119ad	80	HTTPHandler(prefix),
iva2k	0:886e4b3119ad	81	_link_led(link_led),
iva2k	0:886e4b3119ad	82	_act_led(act_led),
iva2k	0:886e4b3119ad	83	_linkstate(-1),
iva2k	0:886e4b3119ad	84	_first(true),
iva2k	0:886e4b3119ad	85	_our_ip(0),
iva2k	0:886e4b3119ad	86	_do_urlfile(do_urlfile),
iva2k	0:886e4b3119ad	87	_do_link_printf(do_link_printf),
iva2k	0:886e4b3119ad	88	_do_log_printf(do_log_printf),
iva2k	0:886e4b3119ad	89	_log_file(log_file)
iva2k	0:886e4b3119ad	90	{
iva2k	0:886e4b3119ad	91	server->addHandler(this);
iva2k	0:886e4b3119ad	92	if (poll_t > 0) _ticker.attach(this, &HTTPLinkStatus::_link_poll, poll_t);
iva2k	0:886e4b3119ad	93	}
iva2k	0:886e4b3119ad	94	virtual ~HTTPLinkStatus() {
iva2k	0:886e4b3119ad	95	_ticker.detach(); // Needeed?
iva2k	0:886e4b3119ad	96	}
iva2k	0:886e4b3119ad	97	void set_do_urlfile(bool val) { _do_urlfile = val; }
iva2k	0:886e4b3119ad	98	void set_link_stdout(bool val) { _do_link_printf = val; }
iva2k	0:886e4b3119ad	99	void set_log_stdout(bool val) { _do_log_printf = val; }
iva2k	0:886e4b3119ad	100	void set_log_file(const char *file) {
iva2k	0:886e4b3119ad	101	_log_file = file;
iva2k	0:886e4b3119ad	102	if (_log_file) {
iva2k	0:886e4b3119ad	103	FILE *fp = fopen(_log_file, "a");
iva2k	0:886e4b3119ad	104	if (fp) {
iva2k	0:886e4b3119ad	105	fprintf(fp, "======== HTTPLinkStatus NEW LOG OPENED ========\r\n");
iva2k	0:886e4b3119ad	106	fclose(fp);
iva2k	0:886e4b3119ad	107	} else {
iva2k	0:886e4b3119ad	108	_log_file = NULL; // Error opening file. Reset file name so we won't waste our time trying to log to it.
iva2k	0:886e4b3119ad	109	}
iva2k	0:886e4b3119ad	110	}
iva2k	0:886e4b3119ad	111	}
iva2k	0:886e4b3119ad	112	private:
iva2k	0:886e4b3119ad	113	void _link_poll() {
iva2k	0:886e4b3119ad	114	int new_linkstate = eth.link();
iva2k	0:886e4b3119ad	115	if (new_linkstate) {
iva2k	0:886e4b3119ad	116	// From http://mbed.org/forum/post/909/
iva2k	0:886e4b3119ad	117	NetServer *net = NetServer::get();
iva2k	0:886e4b3119ad	118	struct ip_addr ip = net->getIPAddr();
iva2k	0:886e4b3119ad	119	// struct ip_addr gw = net->getGateway();
iva2k	0:886e4b3119ad	120	// struct ip_addr nm = net->getNetmask();
iva2k	0:886e4b3119ad	121	// struct ip_addr dns = net->getDNS1();
iva2k	0:886e4b3119ad	122	if (ip.addr != _our_ip) {
iva2k	0:886e4b3119ad	123	if (!_first &&_do_link_printf) {
iva2k	0:886e4b3119ad	124	printf("IP: %hhu.%hhu.%hhu.%hhu\r\n",
iva2k	0:886e4b3119ad	125	(ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF);
iva2k	0:886e4b3119ad	126	}
iva2k	0:886e4b3119ad	127	_first = false;
iva2k	0:886e4b3119ad	128	if (_do_urlfile) {
iva2k	0:886e4b3119ad	129	// Create a link file to our IP.
iva2k	0:886e4b3119ad	130	FILE *fp = fopen("/local/Start.url", "w"); // Create a link to own IP
iva2k	0:886e4b3119ad	131	if (fp) {
iva2k	0:886e4b3119ad	132	fprintf(fp, "[InternetShortcut]\r\nURL=http://%hhu.%hhu.%hhu.%hhu/\r\n",
iva2k	0:886e4b3119ad	133	(ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF);
iva2k	0:886e4b3119ad	134	fclose(fp);
iva2k	0:886e4b3119ad	135	}
iva2k	0:886e4b3119ad	136	}
iva2k	0:886e4b3119ad	137	_our_ip = ip.addr;
iva2k	0:886e4b3119ad	138	}
iva2k	0:886e4b3119ad	139	}
iva2k	0:886e4b3119ad	140	else {
iva2k	0:886e4b3119ad	141	if (_do_link_printf && _linkstate != new_linkstate) {
iva2k	0:886e4b3119ad	142	printf("IP: <link down>\r\n");
iva2k	0:886e4b3119ad	143	}
iva2k	0:886e4b3119ad	144	}
iva2k	0:886e4b3119ad	145	_link_led = new_linkstate;
iva2k	0:886e4b3119ad	146	_linkstate = new_linkstate;
iva2k	0:886e4b3119ad	147	}
iva2k	0:886e4b3119ad	148
iva2k	0:886e4b3119ad	149	virtual HTTPHandle action(HTTPConnection *con) const {
iva2k	0:886e4b3119ad	150	_act_led = 1;
iva2k	0:886e4b3119ad	151	// struct ip_addr ip = con->_pcb()->remote_ip;
iva2k	0:886e4b3119ad	152	struct ip_addr ip = con->get_remote_ip(); // This requires a patch to TCPConnection.h file in lwip/Core
iva2k	0:886e4b3119ad	153	if (_do_log_printf) {
iva2k	0:886e4b3119ad	154	printf("HTTPStatus IP: %hhu.%hhu.%hhu.%hhu %s %s\r\n",
iva2k	0:886e4b3119ad	155	(ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF,
iva2k	0:886e4b3119ad	156	(con->getType() == POST? "POST" : "GET "), con->getURL()
iva2k	0:886e4b3119ad	157	);
iva2k	0:886e4b3119ad	158	}
iva2k	0:886e4b3119ad	159	if (_log_file) {
iva2k	0:886e4b3119ad	160	FILE *fp = fopen(_log_file, "a");
iva2k	0:886e4b3119ad	161	if (fp) {
iva2k	0:886e4b3119ad	162	fprintf(fp, "HTTPStatus IP: %hhu.%hhu.%hhu.%hhu %s %s\r\n",
iva2k	0:886e4b3119ad	163	(ip.addr)&0xFF, (ip.addr>>8)&0xFF, (ip.addr>>16)&0xFF, (ip.addr>>24)&0xFF,
iva2k	0:886e4b3119ad	164	(con->getType() == POST? "POST" : "GET "), con->getURL()
iva2k	0:886e4b3119ad	165	);
iva2k	0:886e4b3119ad	166	fclose(fp);
iva2k	0:886e4b3119ad	167	}
iva2k	0:886e4b3119ad	168	}
iva2k	0:886e4b3119ad	169	_act_led.write(0, 0.050); // Delayed write
iva2k	0:886e4b3119ad	170	return HTTP_AddFields;
iva2k	0:886e4b3119ad	171	}
iva2k	0:886e4b3119ad	172
iva2k	0:886e4b3119ad	173	DigitalOut _link_led; // Link status LED
iva2k	0:886e4b3119ad	174	mutable DigitalOutDelayed _act_led; // Link activity LED. Need "mutable" keyword to let it be changed from within action() const function.
iva2k	0:886e4b3119ad	175	Ticker _ticker; // State polling timer
iva2k	0:886e4b3119ad	176	int _linkstate; // Last state of eth link
iva2k	0:886e4b3119ad	177	bool _first; // Avoid duplicate IP report on the very first pass
iva2k	0:886e4b3119ad	178	unsigned int _our_ip; // Our last IP address (used for _do_urlfile)
iva2k	0:886e4b3119ad	179	bool _do_urlfile; // True for creating url (link) to self on local file system /local/Start.url
iva2k	0:886e4b3119ad	180	bool _do_link_printf; // True for printing to stdout
iva2k	0:886e4b3119ad	181	bool _do_log_printf; // True for printing activity log to stdout
iva2k	0:886e4b3119ad	182	const char *_log_file; // Optional file for activity logging
iva2k	0:886e4b3119ad	183	};
iva2k	0:886e4b3119ad	184
iva2k	0:886e4b3119ad	185	#endif

Repository toolbox

Export to desktop IDE

Build repository

Repository details

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

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

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning