File content as of revision 9:13bd9c989e6c:

/* SpwfInterface NetworkSocketAPI Example Program
 * Copyright (c) 2015 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "mbed.h"
#include "SpwfInterface.h"
#include "TCPSocket.h"


//www.amazon.it CA certificate in PEM format
char  CA_cert []="-----BEGIN CERTIFICATE-----\r\n"
"MIIE0zCCA7ugAwIBAgIQGNrRniZ96LtKIVjNzGs7SjANBgkqhkiG9w0BAQUFADCB\r\n"
"yjELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL\r\n"
"ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNiBWZXJp\r\n"
"U2lnbiwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxW\r\n"
"ZXJpU2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0\r\n"
"aG9yaXR5IC0gRzUwHhcNMDYxMTA4MDAwMDAwWhcNMzYwNzE2MjM1OTU5WjCByjEL\r\n"
"MAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZW\r\n"
"ZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNiBWZXJpU2ln\r\n"
"biwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxWZXJp\r\n"
"U2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0aG9y\r\n"
"aXR5IC0gRzUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvJAgIKXo1\r\n"
"nmAMqudLO07cfLw8RRy7K+D+KQL5VwijZIUVJ/XxrcgxiV0i6CqqpkKzj/i5Vbex\r\n"
"t0uz/o9+B1fs70PbZmIVYc9gDaTY3vjgw2IIPVQT60nKWVSFJuUrjxuf6/WhkcIz\r\n"
"SdhDY2pSS9KP6HBRTdGJaXvHcPaz3BJ023tdS1bTlr8Vd6Gw9KIl8q8ckmcY5fQG\r\n"
"BO+QueQA5N06tRn/Arr0PO7gi+s3i+z016zy9vA9r911kTMZHRxAy3QkGSGT2RT+\r\n"
"rCpSx4/VBEnkjWNHiDxpg8v+R70rfk/Fla4OndTRQ8Bnc+MUCH7lP59zuDMKz10/\r\n"
"NIeWiu5T6CUVAgMBAAGjgbIwga8wDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8E\r\n"
"BAMCAQYwbQYIKwYBBQUHAQwEYTBfoV2gWzBZMFcwVRYJaW1hZ2UvZ2lmMCEwHzAH\r\n"
"BgUrDgMCGgQUj+XTGoasjY5rw8+AatRIGCx7GS4wJRYjaHR0cDovL2xvZ28udmVy\r\n"
"aXNpZ24uY29tL3ZzbG9nby5naWYwHQYDVR0OBBYEFH/TZafC3ey78DAJ80M5+gKv\r\n"
"MzEzMA0GCSqGSIb3DQEBBQUAA4IBAQCTJEowX2LP2BqYLz3q3JktvXf2pXkiOOzE\r\n"
"p6B4Eq1iDkVwZMXnl2YtmAl+X6/WzChl8gGqCBpH3vn5fJJaCGkgDdk+bW48DW7Y\r\n"
"5gaRQBi5+MHt39tBquCWIMnNZBU4gcmU7qKEKQsTb47bDN0lAtukixlE0kF6BWlK\r\n"
"WE9gyn6CagsCqiUXObXbf+eEZSqVir2G3l6BFoMtEMze/aiCKm0oHw0LxOXnGiYZ\r\n"
"4fQRbxC1lfznQgUy286dUV4otp6F01vvpX1FQHKOtw5rDgb7MzVIcbidJ4vEZV8N\r\n"
"hnacRHr2lVz2XTIIM6RUthg/aFzyQkqFOFSDX9HoLPKsEdao7WNq\r\n"
"-----END CERTIFICATE-----\r\n";

//------------------------------------
// Hyperterminal configuration
// 9600 bauds, 8-bit data, no parity
//------------------------------------

Serial pc(USBTX, USBRX);
DigitalOut myled(LED1);

/*************************************
//FRDM-K64: D9->UART1_TX, D7->UART1_RX
Pin connections:
    FRDM      IDW01M1
   ------    ---------
    +3v3 <--> +3v3
    GND  <--> GND
    D9   <--> D8
    D7   <--> D2

SpwfSAInterface spwf(D9, D7, false);
*************************************/
/*************************************
//LPCXpresso11U68: D9->UART1_TX, D7->UART1_RX
Pin connections:
    LPC      IDW01M1
   ------    ---------
    +3v3 <--> +3v3
    GND  <--> GND
    A1   <--> D8
    A2   <--> D2

SpwfSAInterface spwf(A1, A2, false);
*************************************/

//NUCLEO: D8->UART1_TX (PA_9), D2->UART1_RX (PA_10)
SpwfSAInterface spwf(D8, D2, false);

int main() {
    int err;    
    char * ssid = "STM";
    char * seckey = "STMDemo";
    
    pc.printf("\r\nX-NUCLEO-IDW01M1 mbed Application\r\n");     
    pc.printf("\r\nconnecting to AP\r\n");
            
    if(spwf.connect(ssid, seckey, NSAPI_SECURITY_WPA2)) {      
        pc.printf("\r\nnow connected\r\n");
    } else {
        pc.printf("\r\nerror connecting to AP.\r\n");
        return -1;
    }   

    const char *ip = spwf.get_ip_address();
    const char *mac = spwf.get_mac_address();
    
    pc.printf("\r\nIP Address is: %s\r\n", (ip) ? ip : "No IP");
    pc.printf("\r\nMAC Address is: %s\r\n", (mac) ? mac : "No MAC");    
    
    SocketAddress addr(&spwf, "st.com");   
    pc.printf("\r\nst.com resolved to: %s\r\n", addr.get_ip_address());    

    pc.printf("\r\nconnecting to http://4.ifcfg.me\r\n");
    
    TCPSocket socket(&spwf);
    err = socket.connect("4.ifcfg.me", 23);
    if(err!=0) 
    {
      pc.printf("\r\nCould not connect to Socket, err = %d!!\r\n", err); 
      return -1;
    } else pc.printf("\r\nconnected to host server\r\n"); 
    
    char buffer[100];
    int count = 0;
    pc.printf("\r\nReceiving Data\r\n"); 
    count = socket.recv(buffer, sizeof buffer);
    
    if(count > 0)
    {
        buffer [count]='\0';
        printf("%s\r\n", buffer);  
    }
    else pc.printf("\r\nData not received\r\n");

    pc.printf("\r\nClosing Socket\r\n");
    socket.close();
    pc.printf("\r\nUnsecure Socket Test complete.\r\n");

// Start Secure Socket connection test (one way server autentication only)   
    time_t ctTime;
    ctTime = time(NULL);             
    printf ("Start Secure Socket connection with one way server autentication test\n\r");                
    printf("Initial System Time is: %s\r\n", ctime(&ctTime));   
    printf("Need to adjust time? if yes enter time in seconds elapsed since Epoch (cmd: date +'%%s'), otherwise enter 0 ");                
    int t=0;
    scanf("%d",&t);
    printf ("entered time is: %d \n\r", t);
    if (t != 0) { time_t txTm = t; set_time(txTm); }  // set Nucleo system time
    ctTime = time(NULL);    
    printf ("The current system time is: %s", ctime (&ctTime));  // set WiFi module systm time
    if (!spwf.set_time(ctTime)) printf ("ERROR set_time\n\r");       
    if (!spwf.clean_TLS_certificate(ALL)) printf ("ERROR clean_TLS_certificate\n\r");
    if (!spwf.set_TLS_certificate(CA_cert, sizeof(CA_cert), FLASH_CA_ROOT_CERT)) printf ("ERROR set_TLS_certificate\n\r");
    if (!spwf.set_TLS_SRV_domain("www.amazon.it",FLASH_DOMAIN)) printf ("ERROR set_TLS_CA_domain\n\r");
// NOTE:  DNS requires UDP socket. DNS is invoked while connecting a secure socket to resolve URL to IP,
//         so DNS doesnt answer as it requires unsecure UDP socket connection.
//         workaroud: convert URL to IP quering DNS before secure socket creation, then connect 
//         the secure socket created to the  retrieved IP.
    spwf.gethostbyname(&addr,"www.amazon.it");  // ask DNS
    addr.set_port(443); 
    spwf.set_secure_sockets();           
    socket.open(&spwf);
    printf ("Connecting to www.amazon.it IP: %s ...\n\r", addr.get_ip_address());
    err = socket.connect(addr);
    if (err != 0 )printf ("ERROR secure socket connection failed: %d\n\r", err);
    else printf ("--->>> Secure socket CONNECTED to: %s\n\r", addr.get_ip_address());
    spwf.set_unsecure_sockets();    
    socket.close();      
    printf ("Socket closed\n\r");
    spwf.disconnect();
    printf ("WIFI disconnected, exiting ...\n\r");

    while(1) { 
      wait(1);
      myled = !myled;
    }
}