/**
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httpUpdateSecure.ino
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Created on: 16.10.2018 as an adaptation of the ESP8266 version of httpUpdate.ino
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*/
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#include <WiFi.h>
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#include <WiFiMulti.h>
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#include <HTTPClient.h>
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#include <HTTPUpdate.h>
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#include <time.h>
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WiFiMulti WiFiMulti;
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// Set time via NTP, as required for x.509 validation
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void setClock() {
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configTime(0, 0, "pool.ntp.org", "time.nist.gov"); // UTC
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Serial.print(F("Waiting for NTP time sync: "));
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time_t now = time(nullptr);
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while (now < 8 * 3600 * 2) {
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yield();
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delay(500);
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Serial.print(F("."));
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now = time(nullptr);
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}
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Serial.println(F(""));
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struct tm timeinfo;
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gmtime_r(&now, &timeinfo);
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Serial.print(F("Current time: "));
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Serial.print(asctime(&timeinfo));
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}
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/**
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* This is lets-encrypt-x3-cross-signed.pem
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*/
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const char* rootCACertificate = \
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"-----BEGIN CERTIFICATE-----\n" \
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"MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/\n" \
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"MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n" \
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"DkRTVCBSb290IENBIFgzMB4XDTE2MDMxNzE2NDA0NloXDTIxMDMxNzE2NDA0Nlow\n" \
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"SjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUxldCdzIEVuY3J5cHQxIzAhBgNVBAMT\n" \
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"GkxldCdzIEVuY3J5cHQgQXV0aG9yaXR5IFgzMIIBIjANBgkqhkiG9w0BAQEFAAOC\n" \
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"AQ8AMIIBCgKCAQEAnNMM8FrlLke3cl03g7NoYzDq1zUmGSXhvb418XCSL7e4S0EF\n" \
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"q6meNQhY7LEqxGiHC6PjdeTm86dicbp5gWAf15Gan/PQeGdxyGkOlZHP/uaZ6WA8\n" \
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"SMx+yk13EiSdRxta67nsHjcAHJyse6cF6s5K671B5TaYucv9bTyWaN8jKkKQDIZ0\n" \
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"Z8h/pZq4UmEUEz9l6YKHy9v6Dlb2honzhT+Xhq+w3Brvaw2VFn3EK6BlspkENnWA\n" \
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"a6xK8xuQSXgvopZPKiAlKQTGdMDQMc2PMTiVFrqoM7hD8bEfwzB/onkxEz0tNvjj\n" \
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"/PIzark5McWvxI0NHWQWM6r6hCm21AvA2H3DkwIDAQABo4IBfTCCAXkwEgYDVR0T\n" \
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"AQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwfwYIKwYBBQUHAQEEczBxMDIG\n" \
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"CCsGAQUFBzABhiZodHRwOi8vaXNyZy50cnVzdGlkLm9jc3AuaWRlbnRydXN0LmNv\n" \
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"bTA7BggrBgEFBQcwAoYvaHR0cDovL2FwcHMuaWRlbnRydXN0LmNvbS9yb290cy9k\n" \
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"c3Ryb290Y2F4My5wN2MwHwYDVR0jBBgwFoAUxKexpHsscfrb4UuQdf/EFWCFiRAw\n" \
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"VAYDVR0gBE0wSzAIBgZngQwBAgEwPwYLKwYBBAGC3xMBAQEwMDAuBggrBgEFBQcC\n" \
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"ARYiaHR0cDovL2Nwcy5yb290LXgxLmxldHNlbmNyeXB0Lm9yZzA8BgNVHR8ENTAz\n" \
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"MDGgL6AthitodHRwOi8vY3JsLmlkZW50cnVzdC5jb20vRFNUUk9PVENBWDNDUkwu\n" \
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"Y3JsMB0GA1UdDgQWBBSoSmpjBH3duubRObemRWXv86jsoTANBgkqhkiG9w0BAQsF\n" \
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"AAOCAQEA3TPXEfNjWDjdGBX7CVW+dla5cEilaUcne8IkCJLxWh9KEik3JHRRHGJo\n" \
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"uM2VcGfl96S8TihRzZvoroed6ti6WqEBmtzw3Wodatg+VyOeph4EYpr/1wXKtx8/\n" \
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"wApIvJSwtmVi4MFU5aMqrSDE6ea73Mj2tcMyo5jMd6jmeWUHK8so/joWUoHOUgwu\n" \
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"X4Po1QYz+3dszkDqMp4fklxBwXRsW10KXzPMTZ+sOPAveyxindmjkW8lGy+QsRlG\n" \
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"PfZ+G6Z6h7mjem0Y+iWlkYcV4PIWL1iwBi8saCbGS5jN2p8M+X+Q7UNKEkROb3N6\n" \
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"KOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==\n" \
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"-----END CERTIFICATE-----\n";
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void setup() {
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Serial.begin(115200);
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// Serial.setDebugOutput(true);
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Serial.println();
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Serial.println();
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Serial.println();
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for (uint8_t t = 4; t > 0; t--) {
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Serial.printf("[SETUP] WAIT %d...\n", t);
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Serial.flush();
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delay(1000);
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}
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WiFi.mode(WIFI_STA);
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WiFiMulti.addAP("SSID", "PASSWORD");
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}
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void loop() {
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// wait for WiFi connection
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if ((WiFiMulti.run() == WL_CONNECTED)) {
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setClock();
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WiFiClientSecure client;
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client.setCACert(rootCACertificate);
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// Reading data over SSL may be slow, use an adequate timeout
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client.setTimeout(12000);
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// The line below is optional. It can be used to blink the LED on the board during flashing
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// The LED will be on during download of one buffer of data from the network. The LED will
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// be off during writing that buffer to flash
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// On a good connection the LED should flash regularly. On a bad connection the LED will be
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// on much longer than it will be off. Other pins than LED_BUILTIN may be used. The second
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// value is used to put the LED on. If the LED is on with HIGH, that value should be passed
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// httpUpdate.setLedPin(LED_BUILTIN, HIGH);
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t_httpUpdate_return ret = httpUpdate.update(client, "https://server/file.bin");
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// Or:
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//t_httpUpdate_return ret = httpUpdate.update(client, "server", 443, "file.bin");
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switch (ret) {
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case HTTP_UPDATE_FAILED:
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Serial.printf("HTTP_UPDATE_FAILED Error (%d): %s\n", httpUpdate.getLastError(), httpUpdate.getLastErrorString().c_str());
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break;
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case HTTP_UPDATE_NO_UPDATES:
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Serial.println("HTTP_UPDATE_NO_UPDATES");
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break;
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case HTTP_UPDATE_OK:
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Serial.println("HTTP_UPDATE_OK");
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break;
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}
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}
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}
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