Delta / Mbed 2 deprecated NNN40_RPC_HTTP-Server

NNN40 run a HTTP server with RPC using Soft AP mode

Dependencies:   WIFI_API_32kRAM mbed

Fork of HTTP-Server by Francois Berder

The sample code will run as a WiFi Soft AP mode with given AP configuration setting including SSID name and password. IP address (fixed to 192.168.2.1 for the current version of WIFI_API)of AP router will be print out once Soft AP mode is operating.

User can open their web browser and go to http://192.168.2.1/. and have a try on switch on a led. Firstly, we need to create an object to control a led

/media/uploads/wgd8700/http_server2.png

Then, led can be switch on using RPC command /media/uploads/wgd8700/http_server3.png

More information cab be found from the links below

https://developer.mbed.org/users/feb11/code/HTTP-Server/

https://developer.mbed.org/cookbook/Interfacing-Using-RPC

HTTPServer.cpp@11:f57e9de44f6f, 2015-09-16 (annotated)

Committer:
wgd8700
Date:
Wed Sep 16 02:43:42 2015 +0000
Revision:
11:f57e9de44f6f
Parent:
9:a9bf63017854 
First commit;

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 9:a9bf63017854 33 if(socket.bind(port))
feb11 9:a9bf63017854 34 {
feb11 9:a9bf63017854 35 printf("Could not bind on port %d.\n", port);
feb11 9:a9bf63017854 36 return false;
feb11 9:a9bf63017854 37 }
feb11 9:a9bf63017854 38
feb11 9:a9bf63017854 39 if(socket.listen())
feb11 9:a9bf63017854 40 {
feb11 9:a9bf63017854 41 printf("Could not listen %d\n", port);
feb11 9:a9bf63017854 42 return false;
feb11 9:a9bf63017854 43 }
feb11 9:a9bf63017854 44
feb11 9:a9bf63017854 45 return true;
feb11 0:9e4bcb10b3e3 46 }
feb11 0:9e4bcb10b3e3 47
feb11 0:9e4bcb10b3e3 48 void HTTPServer::run()
feb11 0:9e4bcb10b3e3 49 {
feb11 0:9e4bcb10b3e3 50 TCPSocketConnection c;
feb11 0:9e4bcb10b3e3 51 while(true)
feb11 0:9e4bcb10b3e3 52 {
feb11 0:9e4bcb10b3e3 53 while(socket.accept(c));
feb11 0:9e4bcb10b3e3 54 c.set_blocking(false, 1000);
feb11 0:9e4bcb10b3e3 55 while(c.is_connected())
feb11 0:9e4bcb10b3e3 56 {
feb11 0:9e4bcb10b3e3 57 char buffer[512];
feb11 0:9e4bcb10b3e3 58 int n = c.receive_all(buffer, sizeof(buffer)-1);
feb11 0:9e4bcb10b3e3 59 if(n == 0)
feb11 0:9e4bcb10b3e3 60 {
feb11 0:9e4bcb10b3e3 61 c.close();
feb11 0:9e4bcb10b3e3 62 break;
feb11 0:9e4bcb10b3e3 63 }
feb11 0:9e4bcb10b3e3 64 else if(n != -1)
feb11 0:9e4bcb10b3e3 65 {
feb11 7:838d7ea07e18 66 printf("Received data\n");
feb11 0:9e4bcb10b3e3 67 buffer[n] = '\0';
feb11 0:9e4bcb10b3e3 68 handle_request(buffer);
feb11 0:9e4bcb10b3e3 69 if(formatter != NULL)
feb11 0:9e4bcb10b3e3 70 {
feb11 7:838d7ea07e18 71 printf("Sending data...");
feb11 0:9e4bcb10b3e3 72 char *page = formatter->get_page(reply);
feb11 0:9e4bcb10b3e3 73 do
feb11 0:9e4bcb10b3e3 74 {
feb11 0:9e4bcb10b3e3 75 c.send(page, strlen(page)+1);
feb11 0:9e4bcb10b3e3 76 page = formatter->get_page(reply);
feb11 0:9e4bcb10b3e3 77 }while(strlen(page)>0);
feb11 7:838d7ea07e18 78 printf("done\n");
feb11 0:9e4bcb10b3e3 79 }
feb11 0:9e4bcb10b3e3 80 else
feb11 0:9e4bcb10b3e3 81 c.send(INVALID_FORMATTER, strlen(INVALID_FORMATTER)+1);
feb11 0:9e4bcb10b3e3 82 }
feb11 7:838d7ea07e18 83 else
feb11 7:838d7ea07e18 84 printf("Error while receiving data\n");
feb11 0:9e4bcb10b3e3 85 }
feb11 0:9e4bcb10b3e3 86 }
feb11 0:9e4bcb10b3e3 87 }
feb11 0:9e4bcb10b3e3 88
feb11 0:9e4bcb10b3e3 89 void HTTPServer::handle_request(char *buffer)
feb11 0:9e4bcb10b3e3 90 {
feb11 0:9e4bcb10b3e3 91 char *request_type = strtok(buffer, " ");
feb11 0:9e4bcb10b3e3 92 char *request = strtok(NULL, " ");
feb11 0:9e4bcb10b3e3 93
feb11 0:9e4bcb10b3e3 94 reply[0] = '\0';
feb11 0:9e4bcb10b3e3 95 if(!strcmp(request, "/"))
feb11 0:9e4bcb10b3e3 96 return;
feb11 0:9e4bcb10b3e3 97
feb11 0:9e4bcb10b3e3 98 if(!command.decode(request))
feb11 0:9e4bcb10b3e3 99 {
feb11 0:9e4bcb10b3e3 100 strcat(reply, "Malformed request");
feb11 0:9e4bcb10b3e3 101 return;
feb11 0:9e4bcb10b3e3 102 }
feb11 0:9e4bcb10b3e3 103
feb11 0:9e4bcb10b3e3 104 std::map<char*, RequestHandler*>::iterator itor = handlers.find(request_type);
feb11 0:9e4bcb10b3e3 105 if(itor == handlers.end())
feb11 0:9e4bcb10b3e3 106 {
feb11 8:464abd184b7b 107 strcat(reply, "No request handler found for this type of request.");
feb11 0:9e4bcb10b3e3 108 return;
feb11 0:9e4bcb10b3e3 109 }
feb11 0:9e4bcb10b3e3 110 if(itor->second != NULL)
feb11 0:9e4bcb10b3e3 111 itor->second->handle(command, reply);
feb11 0:9e4bcb10b3e3 112 else
feb11 0:9e4bcb10b3e3 113 strcat(reply, "Invalid request handler");
feb11 0:9e4bcb10b3e3 114 }
feb11 0:9e4bcb10b3e3 115
feb11 0:9e4bcb10b3e3 116 void HTTPServer::add_request_handler(char *name, RequestHandler* handler)
feb11 0:9e4bcb10b3e3 117 {
feb11 0:9e4bcb10b3e3 118 handlers[name] = handler;
feb11 0:9e4bcb10b3e3 119 }
feb11 0:9e4bcb10b3e3 120