Delta / Mbed 2 deprecated NNN40_APmodeToSTAmodeByHTTPServer

NNN40 change mode from AP to STA by HTTP server

Dependencies:   WIFI_API_32kRAM mbed

How to use Demo code

  • Step1: Prepare a router, and set the SSID and Password as follow
  1. SSID: "SSID"
  2. Password: "0123456789"
  • Step2: Burn demo code to NNN40 module.

You can drag and drop the sample code to NNN40 module.

  • Step3: Login module from Http server (192.168.2.1) by PC.

You can set SSID and password by browser. After clicking "confirm" button, the module will change mode from AP to STA, get IP from router

  • DEMO video:

HTTPServer.cpp@7:838d7ea07e18, 2013-07-17 (annotated)

Committer:
feb11
Date:
Wed Jul 17 16:23:35 2013 +0000
Revision:
7:838d7ea07e18
Parent:
4:624527ebc0fa
Child:
8:464abd184b7b
Improved error handling and added log

Who changed what in which revision?

UserRevisionLine numberNew contents of line
feb11 0:9e4bcb10b3e3 1 #include "HTTPServer.h"
feb11 0:9e4bcb10b3e3 2
feb11 0:9e4bcb10b3e3 3 #define INVALID_FORMATTER "No valid formatter specified"
feb11 0:9e4bcb10b3e3 4
feb11 0:9e4bcb10b3e3 5 bool cmp(char* a, char* b)
feb11 0:9e4bcb10b3e3 6 {
feb11 0:9e4bcb10b3e3 7 return strcmp(a,b) < 0;
feb11 0:9e4bcb10b3e3 8 }
feb11 4:624527ebc0fa 9
feb11 0:9e4bcb10b3e3 10 HTTPServer::HTTPServer(Formatter *f):
feb11 0:9e4bcb10b3e3 11 socket(),
feb11 0:9e4bcb10b3e3 12 handlers(&cmp),
feb11 0:9e4bcb10b3e3 13 formatter(f),
feb11 0:9e4bcb10b3e3 14 reply(),
feb11 0:9e4bcb10b3e3 15 command()
feb11 0:9e4bcb10b3e3 16 {
feb11 0:9e4bcb10b3e3 17 }
feb11 0:9e4bcb10b3e3 18
feb11 0:9e4bcb10b3e3 19 HTTPServer::~HTTPServer()
feb11 0:9e4bcb10b3e3 20 {
feb11 0:9e4bcb10b3e3 21 for(std::map<char*, RequestHandler*>::iterator itor = handlers.begin();
feb11 0:9e4bcb10b3e3 22 itor != handlers.end();
feb11 0:9e4bcb10b3e3 23 ++itor)
feb11 0:9e4bcb10b3e3 24 delete itor->second;
feb11 0:9e4bcb10b3e3 25
feb11 0:9e4bcb10b3e3 26 if(formatter)
feb11 0:9e4bcb10b3e3 27 delete formatter;
feb11 0:9e4bcb10b3e3 28 }
feb11 0:9e4bcb10b3e3 29
feb11 0:9e4bcb10b3e3 30 bool HTTPServer::init(int port)
feb11 0:9e4bcb10b3e3 31 {
feb11 0:9e4bcb10b3e3 32 socket.set_blocking(true);
feb11 0:9e4bcb10b3e3 33 return !socket.bind(port) && !socket.listen();
feb11 0:9e4bcb10b3e3 34 }
feb11 0:9e4bcb10b3e3 35
feb11 0:9e4bcb10b3e3 36 void HTTPServer::run()
feb11 0:9e4bcb10b3e3 37 {
feb11 0:9e4bcb10b3e3 38 TCPSocketConnection c;
feb11 0:9e4bcb10b3e3 39 while(true)
feb11 0:9e4bcb10b3e3 40 {
feb11 0:9e4bcb10b3e3 41 while(socket.accept(c));
feb11 0:9e4bcb10b3e3 42 c.set_blocking(false, 1000);
feb11 0:9e4bcb10b3e3 43 while(c.is_connected())
feb11 0:9e4bcb10b3e3 44 {
feb11 0:9e4bcb10b3e3 45 char buffer[512];
feb11 0:9e4bcb10b3e3 46 int n = c.receive_all(buffer, sizeof(buffer)-1);
feb11 0:9e4bcb10b3e3 47 if(n == 0)
feb11 0:9e4bcb10b3e3 48 {
feb11 0:9e4bcb10b3e3 49 c.close();
feb11 0:9e4bcb10b3e3 50 break;
feb11 0:9e4bcb10b3e3 51 }
feb11 0:9e4bcb10b3e3 52 else if(n != -1)
feb11 0:9e4bcb10b3e3 53 {
feb11 7:838d7ea07e18 54 printf("Received data\n");
feb11 0:9e4bcb10b3e3 55 buffer[n] = '\0';
feb11 0:9e4bcb10b3e3 56 handle_request(buffer);
feb11 0:9e4bcb10b3e3 57 if(formatter != NULL)
feb11 0:9e4bcb10b3e3 58 {
feb11 7:838d7ea07e18 59 printf("Sending data...");
feb11 0:9e4bcb10b3e3 60 char *page = formatter->get_page(reply);
feb11 0:9e4bcb10b3e3 61 do
feb11 0:9e4bcb10b3e3 62 {
feb11 0:9e4bcb10b3e3 63 c.send(page, strlen(page)+1);
feb11 0:9e4bcb10b3e3 64 page = formatter->get_page(reply);
feb11 0:9e4bcb10b3e3 65 }while(strlen(page)>0);
feb11 7:838d7ea07e18 66 printf("done\n");
feb11 0:9e4bcb10b3e3 67 }
feb11 0:9e4bcb10b3e3 68 else
feb11 0:9e4bcb10b3e3 69 c.send(INVALID_FORMATTER, strlen(INVALID_FORMATTER)+1);
feb11 0:9e4bcb10b3e3 70 }
feb11 7:838d7ea07e18 71 else
feb11 7:838d7ea07e18 72 printf("Error while receiving data\n");
feb11 0:9e4bcb10b3e3 73 }
feb11 0:9e4bcb10b3e3 74 }
feb11 0:9e4bcb10b3e3 75 }
feb11 0:9e4bcb10b3e3 76
feb11 0:9e4bcb10b3e3 77 void HTTPServer::handle_request(char *buffer)
feb11 0:9e4bcb10b3e3 78 {
feb11 0:9e4bcb10b3e3 79 char *request_type = strtok(buffer, " ");
feb11 0:9e4bcb10b3e3 80 char *request = strtok(NULL, " ");
feb11 0:9e4bcb10b3e3 81
feb11 0:9e4bcb10b3e3 82 reply[0] = '\0';
feb11 0:9e4bcb10b3e3 83 if(!strcmp(request, "/"))
feb11 0:9e4bcb10b3e3 84 return;
feb11 0:9e4bcb10b3e3 85
feb11 0:9e4bcb10b3e3 86 if(!command.decode(request))
feb11 0:9e4bcb10b3e3 87 {
feb11 0:9e4bcb10b3e3 88 strcat(reply, "Malformed request");
feb11 0:9e4bcb10b3e3 89 return;
feb11 0:9e4bcb10b3e3 90 }
feb11 0:9e4bcb10b3e3 91
feb11 0:9e4bcb10b3e3 92 std::map<char*, RequestHandler*>::iterator itor = handlers.find(request_type);
feb11 0:9e4bcb10b3e3 93 if(itor == handlers.end())
feb11 0:9e4bcb10b3e3 94 {
feb11 0:9e4bcb10b3e3 95 strcat(reply, "Only PUT, DELETE and GET requests are accepted.");
feb11 0:9e4bcb10b3e3 96 return;
feb11 0:9e4bcb10b3e3 97 }
feb11 0:9e4bcb10b3e3 98 if(itor->second != NULL)
feb11 0:9e4bcb10b3e3 99 itor->second->handle(command, reply);
feb11 0:9e4bcb10b3e3 100 else
feb11 0:9e4bcb10b3e3 101 strcat(reply, "Invalid request handler");
feb11 0:9e4bcb10b3e3 102 }
feb11 0:9e4bcb10b3e3 103
feb11 0:9e4bcb10b3e3 104 void HTTPServer::add_request_handler(char *name, RequestHandler* handler)
feb11 0:9e4bcb10b3e3 105 {
feb11 0:9e4bcb10b3e3 106 handlers[name] = handler;
feb11 0:9e4bcb10b3e3 107 }
feb11 0:9e4bcb10b3e3 108