void getTimeFromGoogle(String &time) {
if (DEBUG) Serial << F("Check time from google") << endl;
if (waitForWifi(7000) != WL_CONNECTED) return;
HTTPClient http;
const char *headers[1] = {"Date"};
http.begin(F("http://google.com/"));
http.collectHeaders(headers, 1);
int rc = http.sendRequest("HEAD");
if (rc < 0) return;
time = http.header("Date");
//const char *d1 = http.header("Date").c_str();
}
void TimeClient::updateTime() {
HTTPClient http;
String url = "http://www.google.com/";
const char * headerkeys[] = {"Date"} ;
size_t headerkeyssize = sizeof(headerkeys)/sizeof(char*);
// Based on Arduino core BasicHttpClient.ino example
// https://github.com/esp8266/Arduino/blob/1588b45a8a15e4d3f1b42f052fc41590e9bec0bb/libraries/ESP8266HTTPClient/examples/BasicHttpClient/BasicHttpClient.ino
// configure http client and url
http.begin(url); //HTTP
http.collectHeaders(headerkeys,headerkeyssize);
// start connection and send HTTP header
int httpCode = http.GET();
// httpCode will be negative on error
if(httpCode > 0) {
// HTTP header has been send and Server response header has been handled
USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);
// file found at server
if ((httpCode == HTTP_CODE_OK)|| (httpCode == HTTP_CODE_FOUND)) {
String payload = http.header("Date");
USE_SERIAL.println(payload);
http.end();
payload.toUpperCase();
// example:
// date: Thu, 19 Nov 2015 20:25:40 GMT
if (payload!=NULL) {
Serial.println(payload.substring(17, 19) + ":" + payload.substring(20, 22) + ":" +payload.substring(23, 25));
int parsedHours = payload.substring(17, 19).toInt();
int parsedMinutes = payload.substring(20, 22).toInt();
int parsedSeconds = payload.substring(23, 25).toInt();
Serial.println(String(parsedHours) + ":" + String(parsedMinutes) + ":" + String(parsedSeconds));
localEpoc = (parsedHours * 60 * 60 + parsedMinutes * 60 + parsedSeconds);
Serial.println(localEpoc);
localMillisAtUpdate = millis();
}
}
}
}
