RESTMessaging.cpp

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#include "RESTMessaging.h"
#ifdef USE_REST_MESSAGING
 
//! @see https://github.com/konacurrents/ESP_IOT/issues/285
 
#include <WiFiClientSecure.h>
 
const char *_SemanticMarker_org_root_ca =
"-----BEGIN CERTIFICATE-----\n" \
"MIIF3jCCA8agAwIBAgIQAf1tMPyjylGoG7xkDjUDLTANBgkqhkiG9w0BAQwFADCB\n" \
"iDELMAkGA1UEBhMCVVMxEzARBgNVBAgTCk5ldyBKZXJzZXkxFDASBgNVBAcTC0pl\n" \
"cnNleSBDaXR5MR4wHAYDVQQKExVUaGUgVVNFUlRSVVNUIE5ldHdvcmsxLjAsBgNV\n" \
"BAMTJVVTRVJUcnVzdCBSU0EgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMTAw\n" \
"MjAxMDAwMDAwWhcNMzgwMTE4MjM1OTU5WjCBiDELMAkGA1UEBhMCVVMxEzARBgNV\n" \
"BAgTCk5ldyBKZXJzZXkxFDASBgNVBAcTC0plcnNleSBDaXR5MR4wHAYDVQQKExVU\n" \
"aGUgVVNFUlRSVVNUIE5ldHdvcmsxLjAsBgNVBAMTJVVTRVJUcnVzdCBSU0EgQ2Vy\n" \
"dGlmaWNhdGlvbiBBdXRob3JpdHkwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIK\n" \
"AoICAQCAEmUXNg7D2wiz0KxXDXbtzSfTTK1Qg2HiqiBNCS1kCdzOiZ/MPans9s/B\n" \
"3PHTsdZ7NygRK0faOca8Ohm0X6a9fZ2jY0K2dvKpOyuR+OJv0OwWIJAJPuLodMkY\n" \
"tJHUYmTbf6MG8YgYapAiPLz+E/CHFHv25B+O1ORRxhFnRghRy4YUVD+8M/5+bJz/\n" \
"Fp0YvVGONaanZshyZ9shZrHUm3gDwFA66Mzw3LyeTP6vBZY1H1dat//O+T23LLb2\n" \
"VN3I5xI6Ta5MirdcmrS3ID3KfyI0rn47aGYBROcBTkZTmzNg95S+UzeQc0PzMsNT\n" \
"79uq/nROacdrjGCT3sTHDN/hMq7MkztReJVni+49Vv4M0GkPGw/zJSZrM233bkf6\n" \
"c0Plfg6lZrEpfDKEY1WJxA3Bk1QwGROs0303p+tdOmw1XNtB1xLaqUkL39iAigmT\n" \
"Yo61Zs8liM2EuLE/pDkP2QKe6xJMlXzzawWpXhaDzLhn4ugTncxbgtNMs+1b/97l\n" \
"c6wjOy0AvzVVdAlJ2ElYGn+SNuZRkg7zJn0cTRe8yexDJtC/QV9AqURE9JnnV4ee\n" \
"UB9XVKg+/XRjL7FQZQnmWEIuQxpMtPAlR1n6BB6T1CZGSlCBst6+eLf8ZxXhyVeE\n" \
"Hg9j1uliutZfVS7qXMYoCAQlObgOK6nyTJccBz8NUvXt7y+CDwIDAQABo0IwQDAd\n" \
"BgNVHQ4EFgQUU3m/WqorSs9UgOHYm8Cd8rIDZsswDgYDVR0PAQH/BAQDAgEGMA8G\n" \
"A1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEMBQADggIBAFzUfA3P9wF9QZllDHPF\n" \
"Up/L+M+ZBn8b2kMVn54CVVeWFPFSPCeHlCjtHzoBN6J2/FNQwISbxmtOuowhT6KO\n" \
"VWKR82kV2LyI48SqC/3vqOlLVSoGIG1VeCkZ7l8wXEskEVX/JJpuXior7gtNn3/3\n" \
"ATiUFJVDBwn7YKnuHKsSjKCaXqeYalltiz8I+8jRRa8YFWSQEg9zKC7F4iRO/Fjs\n" \
"8PRF/iKz6y+O0tlFYQXBl2+odnKPi4w2r78NBc5xjeambx9spnFixdjQg3IM8WcR\n" \
"iQycE0xyNN+81XHfqnHd4blsjDwSXWXavVcStkNr/+XeTWYRUc+ZruwXtuhxkYze\n" \
"Sf7dNXGiFSeUHM9h4ya7b6NnJSFd5t0dCy5oGzuCr+yDZ4XUmFF0sbmZgIn/f3gZ\n" \
"XHlKYC6SQK5MNyosycdiyA5d9zZbyuAlJQG03RoHnHcAP9Dc1ew91Pq7P8yF1m9/\n" \
"qS3fuQL39ZeatTXaw2ewh0qpKJ4jjv9cJ2vhsE/zB+4ALtRZh8tSQZXq9EfX7mRB\n" \
"VXyNWQKV3WKdwrnuWih0hKWbt5DHDAff9Yk2dDLWKMGwsAvgnEzDHNb842m1R0aB\n" \
"L6KCq9NjRHDEjf8tM7qtj3u1cIiuPhnPQCjY/MiQu12ZIvVS5ljFH4gxQ+6IHdfG\n" \
"jjxDah2nGN59PRbxYvnKkKj9\n" \
"-----END CERTIFICATE-----\n";
//!@see https://randomnerdtutorials.com/esp32-https-requests/
 
//! the secure client
WiFiClientSecure _secureClient;
//! server name we will be calling.. with the cert above
const char *_SemanticMarkerServer = "SemanticMarker.org";
 
 
//! setup the secure network
//! setup the connection to SemanticMarker.org
void setupSecureRESTCall()
{
 
    SerialDebug.println("setupSecureRESTCall: setCACert");
    _secureClient.setCACert(_SemanticMarker_org_root_ca);
    SerialDebug.printf("done setCACert = %p\n", _secureClient);
    
}
 
//! 11.14.23  Amber's in Europe
//! 3.6.24 nice but cold.TODO  Retrieve image @see https://forum.arduino.cc/t/download-image-from-internet-to-esp32-and-display-it-out-to-a-tft-display/1075289/2
//! these are sent to SemanticMarker.org and use that hosts security
void sendSecureRESTCall(String message)
{
    
    SerialDebug.print("sendSecureRESTCall: ");
    SerialDebug.println(message);
    //setupSecureNetwork();
   
    SerialDebug.println("calling _secureClient.connect");
    if (!_secureClient.connect(_SemanticMarkerServer, 443))
    {
        SerialDebug.println("HTTPS Connection failed!");
    }
    else
    {
        SerialDebug.println("HTTPS Connected to server! ");
        // make the HTTPS request
       // _secureClient.println("GET https://SemanticMarker.org/bot/help HTTP/1.0");
        
         char buffer[300];
        sprintf(buffer,"GET %s HTTP/1.1", message.c_str());
        SerialDebug.println(buffer);
        
        _secureClient.println(buffer);
        /*
        _secureClient.println("GET ");
        _secureClient.print(message.c_str());
        _secureClient.println(" HTTP/1.1");
         */
 
        _secureClient.println("Host: semanticMarker.org");
        _secureClient.println("Connection: close");
        _secureClient.println();
        
        while (_secureClient.connected()) 
        {
            String line = _secureClient.readStringUntil('\n');
            if (line == "\r") 
            {
                SerialDebug.println("headers received");
                break;
            }
        }
        // if there are incoming bytes available
        // from the server, read them and print them:
        while (_secureClient.available()) 
        {
            char c = _secureClient.read();
            SerialDebug.write(c);
        }
        
        _secureClient.stop();
    
    }
}
 
#endif //RESTMessaging