main.cpp

00001 #include "mbed.h"
00002 #include "NetworkInterface.h"
00003 #include "NTPclient.h"
00004 #include "favicon_ico.h"
00005 
00006 // define static IP settings
00007 #define IP         "192.168.1.180"
00008 #define GATEWAY    "192.168.1.1"
00009 #define NETMASK    "255.255.255.0" 
00010 #define PORT       80
00011 
00012 NetworkInterface *net = NetworkInterface::get_default_instance();
00013 
00014 TCPServer           server;
00015 TCPSocket           client;
00016 SocketAddress       clientAddress;
00017 
00018 NTPclient         ntp(*net);
00019 
00020 DigitalOut led(LED1);
00021 time_t seconds;
00022 
00023 char requestType[16];
00024 char request[64];
00025 
00026 char    *sendbuffer = new char[512];    // create data send buffer space
00027 char    recevbuffer[1024];              // create http receive buffer space
00028 
00029 int main()
00030 {   
00031     printf("\033[0m\033[2J\033[HTCP NTP client and server example\r\n\n\n"); // Tera Term clear screen
00032     seconds = time(NULL);     
00033     printf("Initial RTC time: %s\r\n", ctime(&seconds));    
00034 
00035     // Include to set static IP    
00036     net->set_network (IP, NETMASK, GATEWAY);
00037      
00038     printf("Connecting to network...\n\n");
00039 
00040     nsapi_size_or_error_t r = net->connect();
00041     if (r != 0) {
00042         printf("Error! net.connect() returned: %d\n", r);
00043         while(1);   // stop here and find the connection problem
00044     }
00045     
00046     const char *ip = net->get_ip_address();
00047   
00048     if(ip){ 
00049         printf("\nConnected\n\nGet NTP time...\n");
00050         if(ntp.getNTP("0.pool.ntp.org",3600,1,1)){
00051             seconds = time(NULL);
00052             printf("RTC time set by NTP: %s\n\n", ctime(&seconds));
00053             }
00054             else{printf("No NTP could not set RTC !!\n\n");
00055             }  
00056     }else{
00057         printf("No IP!!\n");
00058         while(1);
00059     }         
00060  
00061     printf("Starting Server...\r\n\n");
00062     
00063     /* Open the server on ethernet stack */
00064     server.open(net); 
00065     /* Bind the HTTP port (TCP 80) to the server */
00066     server.bind(ip, 80); 
00067     /* Can handle 5 simultaneous connections */
00068     server.listen(5);   
00069     //listening for http GET request 
00070     printf("Ready\r\n\n");
00071     
00072     printf("The Server IP address: '%s'\n", ip);
00073     printf("Waiting for connection....\r\n\n"); 
00074     
00075     nsapi_size_or_error_t result; 
00076         
00077     while(1){
00078                            
00079         server.accept(&client, &clientAddress);
00080         
00081         led=1;          
00082         result=client.recv(recevbuffer, 1024);
00083         if (result < 0) {
00084             printf("Error! socket.recv() returned: %d\n", result);           
00085         }   
00086               
00087         sscanf(recevbuffer,"%s %s",requestType,request);
00088         printf("\nClient IP: %s \n", clientAddress.get_ip_address());                        
00089         //printf("Received Msg:\n%s\n\n", recevbuffer);     // include to view complete receive buffer       
00090         printf("request: %s Type: %s\n", requestType,request); 
00091        
00092         if(strcmp(request,"/")==0){
00093             //send current mcu rtc time to client
00094             time_t seconds = time(NULL);
00095             sprintf(sendbuffer,"HTTP/1.1 200 OK\n Content-type: text/plain\r\n\r\n <h1> Hello !!</h1>\r\n\n <h1>Time is: %s</h1>\r\n", ctime(&seconds));
00096             printf("Sending Message\n");
00097             result=client.send(sendbuffer, strlen(sendbuffer));  // send data in buffer to http port.
00098             printf("Sent Message, %d bytes\n",result);
00099         } 
00100         else if(strcmp(request,"/favicon.ico")==0){
00101             //send favicon if requested
00102             printf("Sending Favicon\n"); 
00103             result=client.send((char*)favicon_ico,sizeof(favicon_ico)); 
00104             printf("Sent Favicon, %d bytes\n",result);                
00105         }
00106         else{
00107             // send page not found reply
00108             sprintf(sendbuffer,"HTTP/1.1 404 Not Found\nContent-type: text/plain\r\n\r\npage not found");
00109             printf("Sending Not Found Message\n");
00110             result=client.send(sendbuffer, strlen(sendbuffer));
00111             printf("Sent Not Found Message, %d bytes\n",result);
00112         }                    
00113         //close socket       
00114         client.close();            
00115         led=0;
00116     }
00117 }