main.cpp

00001 /**
00002  * This demo shows how to re-use sockets, so the TLS handshake only has to happen once
00003  * Example from https://os.mbed.com/teams/sandbox/code/http-example
00004  */
00005 
00006 #include "mbed.h"
00007 #include "https_request.h"
00008 #include "EthernetInterface.h"
00009 
00010 /* List of trusted root CA certificates
00011  * currently one: Let's Encrypt, the CA for httpbin.org
00012  *
00013  * To add more root certificates, just concatenate them.
00014  */
00015 const char SSL_CA_PEM[] = "-----BEGIN CERTIFICATE-----\n"
00016     "MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/\n"
00017     "MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n"
00018     "DkRTVCBSb290IENBIFgzMB4XDTE2MDMxNzE2NDA0NloXDTIxMDMxNzE2NDA0Nlow\n"
00019     "SjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUxldCdzIEVuY3J5cHQxIzAhBgNVBAMT\n"
00020     "GkxldCdzIEVuY3J5cHQgQXV0aG9yaXR5IFgzMIIBIjANBgkqhkiG9w0BAQEFAAOC\n"
00021     "AQ8AMIIBCgKCAQEAnNMM8FrlLke3cl03g7NoYzDq1zUmGSXhvb418XCSL7e4S0EF\n"
00022     "q6meNQhY7LEqxGiHC6PjdeTm86dicbp5gWAf15Gan/PQeGdxyGkOlZHP/uaZ6WA8\n"
00023     "SMx+yk13EiSdRxta67nsHjcAHJyse6cF6s5K671B5TaYucv9bTyWaN8jKkKQDIZ0\n"
00024     "Z8h/pZq4UmEUEz9l6YKHy9v6Dlb2honzhT+Xhq+w3Brvaw2VFn3EK6BlspkENnWA\n"
00025     "a6xK8xuQSXgvopZPKiAlKQTGdMDQMc2PMTiVFrqoM7hD8bEfwzB/onkxEz0tNvjj\n"
00026     "/PIzark5McWvxI0NHWQWM6r6hCm21AvA2H3DkwIDAQABo4IBfTCCAXkwEgYDVR0T\n"
00027     "AQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwfwYIKwYBBQUHAQEEczBxMDIG\n"
00028     "CCsGAQUFBzABhiZodHRwOi8vaXNyZy50cnVzdGlkLm9jc3AuaWRlbnRydXN0LmNv\n"
00029     "bTA7BggrBgEFBQcwAoYvaHR0cDovL2FwcHMuaWRlbnRydXN0LmNvbS9yb290cy9k\n"
00030     "c3Ryb290Y2F4My5wN2MwHwYDVR0jBBgwFoAUxKexpHsscfrb4UuQdf/EFWCFiRAw\n"
00031     "VAYDVR0gBE0wSzAIBgZngQwBAgEwPwYLKwYBBAGC3xMBAQEwMDAuBggrBgEFBQcC\n"
00032     "ARYiaHR0cDovL2Nwcy5yb290LXgxLmxldHNlbmNyeXB0Lm9yZzA8BgNVHR8ENTAz\n"
00033     "MDGgL6AthitodHRwOi8vY3JsLmlkZW50cnVzdC5jb20vRFNUUk9PVENBWDNDUkwu\n"
00034     "Y3JsMB0GA1UdDgQWBBSoSmpjBH3duubRObemRWXv86jsoTANBgkqhkiG9w0BAQsF\n"
00035     "AAOCAQEA3TPXEfNjWDjdGBX7CVW+dla5cEilaUcne8IkCJLxWh9KEik3JHRRHGJo\n"
00036     "uM2VcGfl96S8TihRzZvoroed6ti6WqEBmtzw3Wodatg+VyOeph4EYpr/1wXKtx8/\n"
00037     "wApIvJSwtmVi4MFU5aMqrSDE6ea73Mj2tcMyo5jMd6jmeWUHK8so/joWUoHOUgwu\n"
00038     "X4Po1QYz+3dszkDqMp4fklxBwXRsW10KXzPMTZ+sOPAveyxindmjkW8lGy+QsRlG\n"
00039     "PfZ+G6Z6h7mjem0Y+iWlkYcV4PIWL1iwBi8saCbGS5jN2p8M+X+Q7UNKEkROb3N6\n"
00040     "KOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==\n"
00041     "-----END CERTIFICATE-----\n";
00042 
00043 void dump_response(HttpResponse* res) {
00044     mbedtls_printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());
00045 
00046     mbedtls_printf("Headers:\n");
00047     for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
00048         mbedtls_printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
00049     }
00050     mbedtls_printf("\nBody (%d bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
00051 }
00052 
00053 int main() {
00054     EthernetInterface network;
00055     if (network.connect() != 0) {
00056         printf("Could not connect to the network...\n");
00057         return 1;
00058     }
00059 
00060     // Create a TLS socket (which holds a TCPSocket)
00061     printf("\n----- Setting up TLS connection -----\n");
00062 
00063     TLSSocket* socket = new TLSSocket(&network, "httpbin.org", 443, SSL_CA_PEM);
00064     socket->set_debug(true);
00065     if (socket->connect() != 0) {
00066         printf("TLS Connect failed %d\n", socket->error());
00067         return 1;
00068     }
00069 
00070     // GET request to httpbin.org
00071     {
00072         HttpsRequest* get_req = new HttpsRequest(socket, HTTP_GET, "https://httpbin.org/status/418");
00073         get_req->set_debug(true);
00074 
00075         HttpResponse* get_res = get_req->send();
00076         if (!get_res) {
00077             printf("HttpsRequest failed (error code %d)\n", get_req->get_error());
00078             return 1;
00079         }
00080         printf("\n----- HTTPS GET response -----\n");
00081         dump_response(get_res);
00082 
00083         delete get_req;
00084     }
00085 
00086     // POST request to httpbin.org
00087     {
00088         HttpsRequest* post_req = new HttpsRequest(socket, HTTP_POST, "https://httpbin.org/post");
00089         post_req->set_debug(true);
00090         post_req->set_header("Content-Type", "application/json");
00091 
00092         const char body[] = "{\"hello\":\"world\"}";
00093 
00094         HttpResponse* post_res = post_req->send(body, strlen(body));
00095         if (!post_res) {
00096             printf("HttpsRequest failed (error code %d)\n", post_req->get_error());
00097             return 1;
00098         }
00099 
00100         printf("\n----- HTTPS POST response -----\n");
00101         dump_response(post_res);
00102 
00103         delete post_req;
00104     }
00105 
00106     delete socket;
00107 
00108     wait(osWaitForever);
00109 }