Thingspeak IoT using Nucleo-F411RE and IDW01m1

Dependencies:   mbed X_NUCLEO_IDW01M1v2 NetworkSocketAPI

Revision:
8:74b827befe72
Parent:
7:92b5480bb3e4
Child:
9:13bd9c989e6c
--- a/main.cpp	Mon Oct 17 15:26:16 2016 +0000
+++ b/main.cpp	Thu Jan 05 09:39:03 2017 +0000
@@ -18,6 +18,37 @@
 #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
@@ -68,7 +99,7 @@
         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();
     
@@ -88,24 +119,54 @@
       return -1;
     } else pc.printf("\r\nconnected to host server\r\n"); 
     
-    char buffer[64];
+    char buffer[100];
     int count = 0;
     pc.printf("\r\nReceiving Data\r\n"); 
     count = socket.recv(buffer, sizeof buffer);
     
     if(count > 0)
     {
-        printf("public IP address is: %s\r\n", &buffer[15]);
+        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\ndisconnecting....\r\n");
+    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); }
+    printf ("The current system time is: %s", ctime (&ctTime));
+    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();
-    pc.printf("\r\nTest complete.\r\n");
-                
+    printf ("WIFI disconnected, exiting ...\n\r");
+
     while(1) { 
       wait(1);
       myled = !myled;