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HTTP/HTTPS client Hello World application running with X-NUCLEO-IDW01M1v2 wifi board.
Dependencies: HTTPClient NetworkSocketAPI X_NUCLEO_IDW01M1v2 mbed
Fork of HTTPClient_HelloWorld by
Example of HTTP and HTTPS connections using X-NUCLEO-IDW01M1 Wi-Fi expansion board.
The application is meant to be used with mbed OS 2 ("Classic") only (no mbedOS 5 support).
For HTTPS connection it uses the TLS/SSL feature provided natively by the Wi-Fi module and performs secure connection to the server also verifying the server identity.
To avoid expired CA certificates, system time (in epoch) must be manually entered (e..g. using http://www.epochconverter.com/ ) .
Retrieval of current time from an NTP server is shown by this example.
main.cpp
- Committer:
- nikapov
- Date:
- 2017-01-16
- Revision:
- 11:225ab4865c6b
- Parent:
- 9:b54448c7f712
File content as of revision 11:225ab4865c6b:
#include "mbed.h" #include "TCPSocket.h" #include "HTTPClient.h" //www.mbed.com CA certificate in PEM format char CA_cert []="-----BEGIN CERTIFICATE-----\r\n" "MIIDdTCCAl2gAwIBAgILBAAAAAABFUtaw5QwDQYJKoZIhvcNAQEFBQAwVzELMAkG\r\n" "A1UEBhMCQkUxGTAXBgNVBAoTEEdsb2JhbFNpZ24gbnYtc2ExEDAOBgNVBAsTB1Jv\r\n" "b3QgQ0ExGzAZBgNVBAMTEkdsb2JhbFNpZ24gUm9vdCBDQTAeFw05ODA5MDExMjAw\r\n" "MDBaFw0yODAxMjgxMjAwMDBaMFcxCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9i\r\n" "YWxTaWduIG52LXNhMRAwDgYDVQQLEwdSb290IENBMRswGQYDVQQDExJHbG9iYWxT\r\n" "aWduIFJvb3QgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDaDuaZ\r\n" "jc6j40+Kfvvxi4Mla+pIH/EqsLmVEQS98GPR4mdmzxzdzxtIK+6NiY6arymAZavp\r\n" "xy0Sy6scTHAHoT0KMM0VjU/43dSMUBUc71DuxC73/OlS8pF94G3VNTCOXkNz8kHp\r\n" "1Wrjsok6Vjk4bwY8iGlbKk3Fp1S4bInMm/k8yuX9ifUSPJJ4ltbcdG6TRGHRjcdG\r\n" "snUOhugZitVtbNV4FpWi6cgKOOvyJBNPc1STE4U6G7weNLWLBYy5d4ux2x8gkasJ\r\n" "U26Qzns3dLlwR5EiUWMWea6xrkEmCMgZK9FGqkjWZCrXgzT/LCrBbBlDSgeF59N8\r\n" "9iFo7+ryUp9/k5DPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8E\r\n" "BTADAQH/MB0GA1UdDgQWBBRge2YaRQ2XyolQL30EzTSo//z9SzANBgkqhkiG9w0B\r\n" "AQUFAAOCAQEA1nPnfE920I2/7LqivjTFKDK1fPxsnCwrvQmeU79rXqoRSLblCKOz\r\n" "yj1hTdNGCbM+w6DjY1Ub8rrvrTnhQ7k4o+YviiY776BQVvnGCv04zcQLcFGUl5gE\r\n" "38NflNUVyRRBnMRddWQVDf9VMOyGj/8N7yy5Y0b2qvzfvGn9LhJIZJrglfCm7ymP\r\n" "AbEVtQwdpf5pLGkkeB6zpxxxYu7KyJesF12KwvhHhm4qxFYxldBniYUr+WymXUad\r\n" "DKqC5JlR3XC321Y9YeRq4VzW9v493kHMB65jUr9TU/Qr6cf9tveCX4XSQRjbgbME\r\n" "HMUfpIBvFSDJ3gyICh3WZlXi/EjJKSZp4A==\r\n" "-----END CERTIFICATE-----\r\n"; char str[512]; DigitalOut myled(LED1); int main() { printf("\r\nHTTPClient_HelloWorld mbed Application\r\n"); printf("\r\nconnecting to AP...\r\n"); SpwfSAInterface spwf(D8, D2, PC_12, PC_8, false); spwf.connect("STM","STMDemo", NSAPI_SECURITY_WPA2); const char *ip = spwf.get_ip_address(); printf("\r\nIP Address is: %s\r\n", ip); time_t ctTime; ctTime = time(NULL); printf ("Start Secure Socket connection with one way server autentication test\n\r"); if (!spwf.get_time(&ctTime)) printf ("ERROR get_time\n\r"); // read WiFi module time else set_time(ctTime); // set Nucleo system time 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; ctTime=t; set_time(txTm); // set Nucleo system time if (!spwf.set_time(ctTime)) printf ("ERROR set_time\n\r"); } else { if (!spwf.get_time(&ctTime)) printf ("ERROR get_time\n\r"); // read WiFi module time again to compensate time spent on scanf else set_time(ctTime); // set Nucleo system time again to align with Wifi } printf ("The current system time is: %s\n\r", ctime (&ctTime)); spwf.get_time(&ctTime); printf ("The current wifi time is: %s\n\r", ctime (&ctTime)); HTTPClient http(spwf); int ret; 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("*.mbed.com",FLASH_DOMAIN)) printf ("ERROR set_TLS_CA_domain\n\r"); //GET data printf("\nTrying to fetch page...\n\r"); ret = http.get("https://developer.mbed.org/media/uploads/donatien/hello.txt", str, 128, HTTP_CLIENT_DEFAULT_TIMEOUT); //ret = http.get("https://developer.mbed.org/media/uploads/donatien/hello.txt", str, 128, HTTP_CLIENT_DEFAULT_TIMEOUT); //ret = http.get("https://httpbin.org/ip", str, 128, HTTP_CLIENT_DEFAULT_TIMEOUT); //ret = http.get("https://www.mbed.com", str, 128, HTTP_CLIENT_DEFAULT_TIMEOUT); // ret = http.get("http://httpstat.us", str, 128, HTTP_CLIENT_DEFAULT_TIMEOUT); if (!ret) { printf("Page fetched successfully - read %d characters\n\r", strlen(str)); printf("Result: %s\n", str); } else { printf("Error - ret = %d - HTTP return code = %d\n\r", ret, http.getHTTPResponseCode()); } //POST data HTTPMap map; HTTPText inText(str, 512); map.put("Hello", "World"); map.put("test", "1234"); printf("\nTrying to post data...\n\r"); ret = http.post("http://httpbin.org/post", map, &inText, HTTP_CLIENT_DEFAULT_TIMEOUT); // ret = http.post("http://posttestserver.com/post.php", map, &inText, HTTP_CLIENT_DEFAULT_TIMEOUT); if (!ret) { printf("Executed POST successfully - read %d characters\n\r", strlen(str)); printf("Result: %s\n\r", str); } else { printf("Error - ret = %d - HTTP return code = %d\n\r", ret, http.getHTTPResponseCode()); } //PUT data strcpy(str, "This is a PUT test!"); HTTPText outText(str); //HTTPText inText(str, 512); printf("\nTrying to put resource...\n\r"); ret = http.put("http://httpbin.org/put", outText, &inText); if (!ret) { printf("Executed PUT successfully - read %d characters\n\r", strlen(str)); printf("Result: %s\n\r", str); } else { printf("Error - ret = %d - HTTP return code = %d\n\r", ret, http.getHTTPResponseCode()); } //DELETE data //HTTPText inText(str, 512); printf("\nTrying to delete resource...\n\r"); ret = http.del("http://httpbin.org/delete", &inText); if (!ret) { printf("Executed DELETE successfully - read %d characters\n\r", strlen(str)); printf("Result: %s\n\r", str); } else { printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode()); } spwf.disconnect(); printf ("WIFI disconnected, exiting ...\n\r"); while(1) { wait(1); myled = !myled; } }