WiFiClientSecure / google problem?
Posted: Thu Mar 24, 2016 2:41 pmWell.. if someone could offer some enlightenment.. can't find the error in the following (modified host from the original of course..)
It hangs at client.connect for some time.. and then connection fails.
the same happens in "google.com" or "www.google.com"
other hosts work and reply normally
Is it my network?
output is
It hangs at client.connect for some time.. and then connection fails.
the same happens in "google.com" or "www.google.com"
other hosts work and reply normally
Is it my network?
Code: Select all
/*
* HTTP over TLS (HTTPS) example sketch
*
* This example demonstrates how to use
* WiFiClientSecure class to access HTTPS API.
* We fetch and display the status of
* esp8266/Arduino project continuous integration
* build.
*
* Created by Ivan Grokhotkov, 2015.
* This example is in public domain.
*/
#include <ESP8266WiFi.h>
// Replace with your network credentials
const char* ssid = ".....";
const char* password = ".........";
const char* host = "calendar.google.com";
const int httpsPort = 443;
// Use web browser to view and copy
// SHA1 fingerprint of the certificate
//const char* fingerprint = "CF 05 98 89 CA FF 8E D8 5E 5C E0 C2 E4 F7 E6 C3 C7 50 DD 5C";
const char* fingerprint = "99 70 D6 7C B8 42 71 18 DC A6 88 DB DC C8 69 66 96 9D 51 88"; //google
void setup() {
Serial.begin(57600);
Serial.println();
Serial.print("connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
// Use WiFiClientSecure class to create TLS connection
WiFiClientSecure client;
Serial.print("connecting to ");
Serial.println(host);
if (!client.connect(host, httpsPort)) {
Serial.println("connection failed");
return;
}
if (client.verify(fingerprint, host)) {
Serial.println("certificate matches");
} else {
Serial.println("certificate doesn't match");
}
String url = "/";
Serial.print("requesting URL: ");
Serial.println(url);
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"User-Agent: ESP8266\r\n" +
"Connection: close\r\n\r\n");
Serial.println("request sent");
while (client.connected()) {
String line = client.readStringUntil('\n');
if (line == "\r") {
Serial.println("headers received");
break;
}
}
String line = client.readStringUntil('\n');
Serial.println("reply was:");
Serial.println("==========");
Serial.println(line);
Serial.println("==========");
Serial.println("closing connection");
}
void loop() {
}
output is
Code: Select all
connecting to ssid
..
WiFi connected
IP address:
192.168.1.11
connecting to calendar.google.com
connection failed
