WebSwitch_WIZ550io - HTTP Server serving a simple webpage which enable…

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Zoltan Hudak / Mbed 2 deprecated WebSwitch_WIZ550io

HTTP Server serving a simple webpage which enables to remotely turn LED1 on/off. Compile, download, run and type 'IP_address/secret/' (don't forget the last '/') into your web browser and hit ENTER.

Dependencies: W5500Interface mbed

Turn LED1, or other digital output, on/off using a web browser.

In this example we create a HTTP server that will serve a simple Web page to remotely turn LED1, or other digital output on the mbed board, on/off by using a web browser. A WIZ550io module or W5500 Network-Shielld is used to assure connection between the mbed module and the Ethernet network (Internet).

Needed parts:

mbed board
WIZ550io module or W5500 Network-Shield
Wires
Web browser (Internet Explorer, Safari, Firefox, Chrome ...) running on Windows, Mac, Linux, iPhone or Android device.

/media/uploads/hudakz/webswitch_mobile01.jpg

The project was inspired by the Tuxgraphics Web Switch. Thank you Guido!

NOTE:

For a Web Switch using an ENC28J60 Ethernet module see WebSwitch_ENC28J60
For a Web Switch using mbed's built in Ethernet PHY see WebSwitch_mbed-dev or WebSwitch_mbed-os

main.cpp@0:5c8e08cf3b33, 2015-03-15 (annotated)

Committer:: hudakz
Date:: Sun Mar 15 22:47:37 2015 +0000
Revision:: 0:5c8e08cf3b33
Child:: 1:343d3c7e13b8

Web Switch to turn on/off LED1 using the WIZ550io board. Compile, download, run and type 192.168.1.181/secret/ into your web browser.

Who changed what in which revision?

User	Revision	Line number	New contents of line
hudakz	0:5c8e08cf3b33	1	/* In this example LED1 on the mbed board is switched on/off using a web browser.
hudakz	0:5c8e08cf3b33	2	* The HTTP server is built from an mbed board and a WIZ550io board.
hudakz	0:5c8e08cf3b33	3	* The example is based on the Tuxgraphics Web Switch <http://www.tuxgraphics.org/>.
hudakz	0:5c8e08cf3b33	4	*/
hudakz	0:5c8e08cf3b33	5	#include "mbed.h"
hudakz	0:5c8e08cf3b33	6	#include "EthernetInterface.h"
hudakz	0:5c8e08cf3b33	7	#include <string>
hudakz	0:5c8e08cf3b33	8
hudakz	0:5c8e08cf3b33	9	using namespace std;
hudakz	0:5c8e08cf3b33	10
hudakz	0:5c8e08cf3b33	11	Serial serial(USBTX, USBRX);
hudakz	0:5c8e08cf3b33	12
hudakz	0:5c8e08cf3b33	13	// Do not change the name! It is used within the UIPEthernet library.
hudakz	0:5c8e08cf3b33	14	#if defined(TARGET_LPC1768)
hudakz	0:5c8e08cf3b33	15	SPI spi(p11, p12, p13); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	16	EthernetInterface eth(&spi, p8, p14); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	17	#elif defined(TARGET_FRDM_KL25Z)
hudakz	0:5c8e08cf3b33	18	SPI spi(PTD2, PTD3, PTD1); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	19	EthernetInterface eth(&spi, PTD0, PTD5); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	20	#elif defined(TARGET_FRDM_KL46Z)
hudakz	0:5c8e08cf3b33	21	SPI spi(PTD2, PTD3, PTD1); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	22	EthernetInterface eth(&spi, PTD0, PTD5); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	23	#elif defined(TARGET_LPC11U24)
hudakz	0:5c8e08cf3b33	24	SPI spi(P16, P15, P13); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	25	EthernetInterface eth(&spi, P17, P18); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	26	#elif defined(TARGET_NUCLEO_F030R8)
hudakz	0:5c8e08cf3b33	27	SPI spi(PB_5, PB_4, PB_3); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	28	EthernetInterface eth(&spi, PB_10, PA_8); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	29	#elif defined(TARGET_NUCLEO_F072RB)
hudakz	0:5c8e08cf3b33	30	SPI spi(PB_5, PB_4, PB_3); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	31	EthernetInterface eth(&spi, PB_10, PA_8); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	32	#elif defined(TARGET_NUCLEO_F103RB)
hudakz	0:5c8e08cf3b33	33	SPI spi(PB_5, PB_4, PB_3); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	34	EthernetInterface eth(&spi, PB_10, PA_8); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	35	#elif defined(TARGET_NUCLEO_F401RE)
hudakz	0:5c8e08cf3b33	36	SPI spi(PB_5, PB_4, PB_3); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	37	EthernetInterface eth(&spi, PB_10, PA_8); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	38	#elif defined(TARGET_NUCLEO_F411RE)
hudakz	0:5c8e08cf3b33	39	SPI spi(PB_5, PB_4, PB_3); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	40	EthernetInterface eth(&spi, PB_10, PA_8); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	41
hudakz	0:5c8e08cf3b33	42	// If your board/plaform is not present yet then uncomment
hudakz	0:5c8e08cf3b33	43	// the following three lines and replace modify as appropriate.
hudakz	0:5c8e08cf3b33	44
hudakz	0:5c8e08cf3b33	45	//#elif defined(TARGET_YOUR_BOARD)
hudakz	0:5c8e08cf3b33	46	//SPI spi(SPI_MOSI, SPI_MISO, SPI_SCK); // MOSI, MISO, SCK
hudakz	0:5c8e08cf3b33	47	//EthernetInterface eth(&spi, SPI_CS, RESET); // SPI, CS, RESET
hudakz	0:5c8e08cf3b33	48	#endif
hudakz	0:5c8e08cf3b33	49
hudakz	0:5c8e08cf3b33	50	// Note:
hudakz	0:5c8e08cf3b33	51	// If it happends that any of the SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS or RESET pins collide with LED1 pin
hudakz	0:5c8e08cf3b33	52	// then either use different SPI port (if available on the board) and change the pin names
hudakz	0:5c8e08cf3b33	53	// in the constructor spi(...) accordingly or instead of using LED1 pin, select
hudakz	0:5c8e08cf3b33	54	// a free pin (not used by SPI port) and connect to it an external LED which is connected
hudakz	0:5c8e08cf3b33	55	// to a 220 Ohm resitor that is connected to the groud.
hudakz	0:5c8e08cf3b33	56	// In the second case remember to replace LED1 in sw(LED1) constructor (see below).
hudakz	0:5c8e08cf3b33	57	// IP address must be also unique and compatible with your network. Change as appropriate.
hudakz	0:5c8e08cf3b33	58	const char MY_IP[] = "192.168.1.181";
hudakz	0:5c8e08cf3b33	59	const char MY_NETMASK[] = "255.255.255.0";
hudakz	0:5c8e08cf3b33	60	const char MY_GATEWAY[] = "192.168.1.1";
hudakz	0:5c8e08cf3b33	61	int MY_PORT = 80;
hudakz	0:5c8e08cf3b33	62
hudakz	0:5c8e08cf3b33	63	TCPSocketServer server;
hudakz	0:5c8e08cf3b33	64	TCPSocketConnection client;
hudakz	0:5c8e08cf3b33	65	bool serverIsListening = false;
hudakz	0:5c8e08cf3b33	66
hudakz	0:5c8e08cf3b33	67	DigitalOut sw(LED1); // Change LED1 to a pin of your choice.
hudakz	0:5c8e08cf3b33	68	// However, make sure that it does not collide with any of the SPI pins
hudakz	0:5c8e08cf3b33	69	// already used in the UIPEthernet(...) constructor above!
hudakz	0:5c8e08cf3b33	70
hudakz	0:5c8e08cf3b33	71	const string PASSWORD = "secret"; // change as you like
hudakz	0:5c8e08cf3b33	72	const string HTTP_OK = "HTTP/1.0 200 OK";
hudakz	0:5c8e08cf3b33	73	const string MOVED_PERM = "HTTP/1.0 301 Moved Permanently\r\nLocation: ";
hudakz	0:5c8e08cf3b33	74	const string UNAUTHORIZED = "HTTP/1.0 401 Unauthorized";
hudakz	0:5c8e08cf3b33	75
hudakz	0:5c8e08cf3b33	76	string httpHeader; // HTTP header
hudakz	0:5c8e08cf3b33	77	string httpContent; // HTTP content
hudakz	0:5c8e08cf3b33	78
hudakz	0:5c8e08cf3b33	79	// analyse the url given
hudakz	0:5c8e08cf3b33	80	// return values: -1 invalid password
hudakz	0:5c8e08cf3b33	81	// -2 no command given but password valid
hudakz	0:5c8e08cf3b33	82	// -3 just refresh page
hudakz	0:5c8e08cf3b33	83	// 0 switch off
hudakz	0:5c8e08cf3b33	84	// 1 switch on
hudakz	0:5c8e08cf3b33	85	//
hudakz	0:5c8e08cf3b33	86	// The string passed to this function will look like this:
hudakz	0:5c8e08cf3b33	87	// GET /password HTTP/1.....
hudakz	0:5c8e08cf3b33	88	// GET /password/ HTTP/1.....
hudakz	0:5c8e08cf3b33	89	// GET /password/?sw=1 HTTP/1.....
hudakz	0:5c8e08cf3b33	90
hudakz	0:5c8e08cf3b33	91	// GET /password/?sw=0 HTTP/1.....
hudakz	0:5c8e08cf3b33	92	int8_t analyse_get_url(string& str) {
hudakz	0:5c8e08cf3b33	93	if(str.substr(5, PASSWORD.size()) != PASSWORD)
hudakz	0:5c8e08cf3b33	94	return(-1);
hudakz	0:5c8e08cf3b33	95
hudakz	0:5c8e08cf3b33	96	uint8_t pos = 5 + PASSWORD.size();
hudakz	0:5c8e08cf3b33	97
hudakz	0:5c8e08cf3b33	98	if(str.substr(pos, 1) == " ")
hudakz	0:5c8e08cf3b33	99	return(-2);
hudakz	0:5c8e08cf3b33	100
hudakz	0:5c8e08cf3b33	101	if(str.substr(pos, 1) != "/")
hudakz	0:5c8e08cf3b33	102	return(-1);
hudakz	0:5c8e08cf3b33	103
hudakz	0:5c8e08cf3b33	104	pos++;
hudakz	0:5c8e08cf3b33	105
hudakz	0:5c8e08cf3b33	106	string cmd(str.substr(pos, 5));
hudakz	0:5c8e08cf3b33	107
hudakz	0:5c8e08cf3b33	108	if(cmd == "?sw=0")
hudakz	0:5c8e08cf3b33	109	return(0);
hudakz	0:5c8e08cf3b33	110
hudakz	0:5c8e08cf3b33	111	if(cmd == "?sw=1")
hudakz	0:5c8e08cf3b33	112	return(1);
hudakz	0:5c8e08cf3b33	113
hudakz	0:5c8e08cf3b33	114	return(-3);
hudakz	0:5c8e08cf3b33	115	}
hudakz	0:5c8e08cf3b33	116
hudakz	0:5c8e08cf3b33	117	/**
hudakz	0:5c8e08cf3b33	118	* @brief
hudakz	0:5c8e08cf3b33	119	* @note
hudakz	0:5c8e08cf3b33	120	* @param
hudakz	0:5c8e08cf3b33	121	* @retval
hudakz	0:5c8e08cf3b33	122	*/
hudakz	0:5c8e08cf3b33	123	string& moved_perm(uint8_t flag) {
hudakz	0:5c8e08cf3b33	124	if(flag == 1)
hudakz	0:5c8e08cf3b33	125	httpContent = "/" + PASSWORD + "/";
hudakz	0:5c8e08cf3b33	126	else
hudakz	0:5c8e08cf3b33	127	httpContent = "";
hudakz	0:5c8e08cf3b33	128
hudakz	0:5c8e08cf3b33	129	httpContent += "<h1>301 Moved Permanently</h1>\r\n";
hudakz	0:5c8e08cf3b33	130
hudakz	0:5c8e08cf3b33	131	return(httpContent);
hudakz	0:5c8e08cf3b33	132	}
hudakz	0:5c8e08cf3b33	133
hudakz	0:5c8e08cf3b33	134	/**
hudakz	0:5c8e08cf3b33	135	* @brief
hudakz	0:5c8e08cf3b33	136	* @note
hudakz	0:5c8e08cf3b33	137	* @param
hudakz	0:5c8e08cf3b33	138	* @retval
hudakz	0:5c8e08cf3b33	139	*/
hudakz	0:5c8e08cf3b33	140	string& view(uint8_t status) {
hudakz	0:5c8e08cf3b33	141	httpContent = "<h2>Web Switch</h2>\r\n";
hudakz	0:5c8e08cf3b33	142
hudakz	0:5c8e08cf3b33	143	if(status == 1) {
hudakz	0:5c8e08cf3b33	144	httpContent += "<pre>\r\n <font color=#FF0000>ON</font>";
hudakz	0:5c8e08cf3b33	145	httpContent += " <a href=\"./?sw=0\">[switch off]</a>\r\n";
hudakz	0:5c8e08cf3b33	146	}
hudakz	0:5c8e08cf3b33	147	else {
hudakz	0:5c8e08cf3b33	148	httpContent += "<pre>\r\n <font color=#00FF00>OFF</font>";
hudakz	0:5c8e08cf3b33	149	httpContent += " <a href=\"./?sw=1\">[switch on]</a>\r\n";
hudakz	0:5c8e08cf3b33	150	}
hudakz	0:5c8e08cf3b33	151
hudakz	0:5c8e08cf3b33	152	httpContent += " <a href=\".\">[refresh status]</a>\r\n";
hudakz	0:5c8e08cf3b33	153	httpContent += "</pre>\r\n";
hudakz	0:5c8e08cf3b33	154	httpContent += "<hr>\r\n";
hudakz	0:5c8e08cf3b33	155	return httpContent;
hudakz	0:5c8e08cf3b33	156	}
hudakz	0:5c8e08cf3b33	157
hudakz	0:5c8e08cf3b33	158	/**
hudakz	0:5c8e08cf3b33	159	* @brief
hudakz	0:5c8e08cf3b33	160	* @note
hudakz	0:5c8e08cf3b33	161	* @param
hudakz	0:5c8e08cf3b33	162	* @retval
hudakz	0:5c8e08cf3b33	163	*/
hudakz	0:5c8e08cf3b33	164	void http_send(TCPSocketConnection& client, string& header, string& content) {
hudakz	0:5c8e08cf3b33	165	char content_length[5] = { };
hudakz	0:5c8e08cf3b33	166
hudakz	0:5c8e08cf3b33	167	header += "\r\nContent-Type: text/html\r\n";
hudakz	0:5c8e08cf3b33	168	header += "Content-Length: ";
hudakz	0:5c8e08cf3b33	169	sprintf(content_length, "%d", content.length());
hudakz	0:5c8e08cf3b33	170	header += string(content_length) + "\r\n";
hudakz	0:5c8e08cf3b33	171	header += "Pragma: no-cache\r\n";
hudakz	0:5c8e08cf3b33	172	header += "Connection: About to close\r\n";
hudakz	0:5c8e08cf3b33	173	header += "\r\n";
hudakz	0:5c8e08cf3b33	174
hudakz	0:5c8e08cf3b33	175	string webpage = header + content;
hudakz	0:5c8e08cf3b33	176	client.send (const_cast<char*>(webpage.c_str ()), webpage.length ());
hudakz	0:5c8e08cf3b33	177	}
hudakz	0:5c8e08cf3b33	178
hudakz	0:5c8e08cf3b33	179	/**
hudakz	0:5c8e08cf3b33	180	* @brief
hudakz	0:5c8e08cf3b33	181	* @note
hudakz	0:5c8e08cf3b33	182	* @param
hudakz	0:5c8e08cf3b33	183	* @retval
hudakz	0:5c8e08cf3b33	184	*/
hudakz	0:5c8e08cf3b33	185	int main(void) {
hudakz	0:5c8e08cf3b33	186	int ret = eth.init(MY_IP, MY_NETMASK, MY_GATEWAY);
hudakz	0:5c8e08cf3b33	187
hudakz	0:5c8e08cf3b33	188	if(!ret) {
hudakz	0:5c8e08cf3b33	189	serial.printf("Initialized, MY_MAC: %s\n", eth.getMACAddress());
hudakz	0:5c8e08cf3b33	190	serial.printf
hudakz	0:5c8e08cf3b33	191	(
hudakz	0:5c8e08cf3b33	192	"Connected, MY_IP: %s, MY_NETMASK: %s, MY_GATEWAY: %s\n",
hudakz	0:5c8e08cf3b33	193	eth.getIPAddress(),
hudakz	0:5c8e08cf3b33	194	eth.getNetworkMask(),
hudakz	0:5c8e08cf3b33	195	eth.getGateway()
hudakz	0:5c8e08cf3b33	196	);
hudakz	0:5c8e08cf3b33	197	}
hudakz	0:5c8e08cf3b33	198	else {
hudakz	0:5c8e08cf3b33	199	serial.printf("Error eth.init() - ret = %d\n", ret);
hudakz	0:5c8e08cf3b33	200	return -1;
hudakz	0:5c8e08cf3b33	201	}
hudakz	0:5c8e08cf3b33	202
hudakz	0:5c8e08cf3b33	203	//setup tcp socket
hudakz	0:5c8e08cf3b33	204	if(server.bind(MY_PORT) < 0) {
hudakz	0:5c8e08cf3b33	205	serial.printf("TCP server bind failed.\n\r");
hudakz	0:5c8e08cf3b33	206	return -1;
hudakz	0:5c8e08cf3b33	207	}
hudakz	0:5c8e08cf3b33	208	else {
hudakz	0:5c8e08cf3b33	209	serial.printf("TCP server bind succeeded.\n\r");
hudakz	0:5c8e08cf3b33	210	serverIsListening = true;
hudakz	0:5c8e08cf3b33	211	}
hudakz	0:5c8e08cf3b33	212
hudakz	0:5c8e08cf3b33	213	if(server.listen(1) < 0) {
hudakz	0:5c8e08cf3b33	214	serial.printf("TCP server listen failed.\n\r");
hudakz	0:5c8e08cf3b33	215	return -1;
hudakz	0:5c8e08cf3b33	216	}
hudakz	0:5c8e08cf3b33	217	else {
hudakz	0:5c8e08cf3b33	218	serial.printf("TCP server is listening...\n\r");
hudakz	0:5c8e08cf3b33	219	}
hudakz	0:5c8e08cf3b33	220
hudakz	0:5c8e08cf3b33	221	while(serverIsListening) {
hudakz	0:5c8e08cf3b33	222	if(server.accept(client) >= 0) {
hudakz	0:5c8e08cf3b33	223	char buf[1024] = { };
hudakz	0:5c8e08cf3b33	224	size_t size = 0;
hudakz	0:5c8e08cf3b33	225
hudakz	0:5c8e08cf3b33	226	serial.printf("Client connected!\n\rIP: %s\n\r", client.get_address());
hudakz	0:5c8e08cf3b33	227
hudakz	0:5c8e08cf3b33	228	switch(client.receive(buf, 1023)) {
hudakz	0:5c8e08cf3b33	229	case 0:
hudakz	0:5c8e08cf3b33	230	serial.printf("Recieved buffer is empty.\n\r");
hudakz	0:5c8e08cf3b33	231	break;
hudakz	0:5c8e08cf3b33	232
hudakz	0:5c8e08cf3b33	233	case -1:
hudakz	0:5c8e08cf3b33	234	serial.printf("Failed to read data from client.\n\r");
hudakz	0:5c8e08cf3b33	235	break;
hudakz	0:5c8e08cf3b33	236
hudakz	0:5c8e08cf3b33	237	default:
hudakz	0:5c8e08cf3b33	238	size = strlen(buf);
hudakz	0:5c8e08cf3b33	239
hudakz	0:5c8e08cf3b33	240	string received((char*)buf);
hudakz	0:5c8e08cf3b33	241
hudakz	0:5c8e08cf3b33	242	if(received.substr(0, 3) != "GET") {
hudakz	0:5c8e08cf3b33	243	httpHeader = HTTP_OK;
hudakz	0:5c8e08cf3b33	244	httpContent = "<h1>200 OK</h1>";
hudakz	0:5c8e08cf3b33	245	http_send(client, httpHeader, httpContent);
hudakz	0:5c8e08cf3b33	246	continue;
hudakz	0:5c8e08cf3b33	247	}
hudakz	0:5c8e08cf3b33	248
hudakz	0:5c8e08cf3b33	249	if(received.substr(0, 6) == "GET / ") {
hudakz	0:5c8e08cf3b33	250	httpHeader = HTTP_OK;
hudakz	0:5c8e08cf3b33	251	httpContent = "<p>Usage: http://host_or_ip/password</p>\r\n";
hudakz	0:5c8e08cf3b33	252	http_send(client, httpHeader, httpContent);
hudakz	0:5c8e08cf3b33	253	continue;
hudakz	0:5c8e08cf3b33	254	}
hudakz	0:5c8e08cf3b33	255
hudakz	0:5c8e08cf3b33	256	int cmd = analyse_get_url(received);
hudakz	0:5c8e08cf3b33	257
hudakz	0:5c8e08cf3b33	258	if(cmd == -2) {
hudakz	0:5c8e08cf3b33	259
hudakz	0:5c8e08cf3b33	260	// redirect to the right base url
hudakz	0:5c8e08cf3b33	261	httpHeader = MOVED_PERM;
hudakz	0:5c8e08cf3b33	262	http_send(client, httpHeader, moved_perm(1));
hudakz	0:5c8e08cf3b33	263	continue;
hudakz	0:5c8e08cf3b33	264	}
hudakz	0:5c8e08cf3b33	265
hudakz	0:5c8e08cf3b33	266	if(cmd == -1) {
hudakz	0:5c8e08cf3b33	267	httpHeader = UNAUTHORIZED;
hudakz	0:5c8e08cf3b33	268	httpContent = "<h1>401 Unauthorized</h1>";
hudakz	0:5c8e08cf3b33	269	http_send(client, httpHeader, httpContent);
hudakz	0:5c8e08cf3b33	270	continue;
hudakz	0:5c8e08cf3b33	271	}
hudakz	0:5c8e08cf3b33	272
hudakz	0:5c8e08cf3b33	273	if(cmd == 1) {
hudakz	0:5c8e08cf3b33	274	sw = 1; // switch on
hudakz	0:5c8e08cf3b33	275	}
hudakz	0:5c8e08cf3b33	276
hudakz	0:5c8e08cf3b33	277	if(cmd == 0) {
hudakz	0:5c8e08cf3b33	278	sw = 0; // switch off
hudakz	0:5c8e08cf3b33	279	}
hudakz	0:5c8e08cf3b33	280
hudakz	0:5c8e08cf3b33	281	httpHeader = HTTP_OK;
hudakz	0:5c8e08cf3b33	282	http_send(client, httpHeader, view(sw));
hudakz	0:5c8e08cf3b33	283	}
hudakz	0:5c8e08cf3b33	284
hudakz	0:5c8e08cf3b33	285	client.close();
hudakz	0:5c8e08cf3b33	286
hudakz	0:5c8e08cf3b33	287	serial.printf("Connection closed.\n\rTCP server is listening...\n\r");
hudakz	0:5c8e08cf3b33	288	}
hudakz	0:5c8e08cf3b33	289	}
hudakz	0:5c8e08cf3b33	290	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	15 Mar 2015
Imports:	194
Forks:	0
Commits:	7
Dependents:	0
Dependencies:	2
Followers:	4

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main.cpp@0:5c8e08cf3b33, 2015-03-15 (annotated)

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