Is it possible to restrict the Time Zone API key to Android Apps?
Google Maps Android API and Google Places API keys can be restricted to
certain Androids Apps by defining the package name and SHA-1 hash.
This works without problem for the Maps and Places API, but using the exact
same settings for the Time Zone API constantly returns "`REQUEST_DENIED`".
Setting the application restrictions back to "None" results in a successful
query, but I don't want to leave my API key unprotected.
The way I'm calling the API is as follows:
double lat = 51.1789;
double lon = -1.8262;
long time = 1523092938;
String Api_key = "#API_KEY#";
String query =
"https://maps.googleapis.com/maps/api/timezone/json?location="+String.format(Locale.ROOT,
"%.4f",lat)+","+String.format(Locale.ROOT,
"%.4f",lon)+"×tamp="+time+"&key="+ Api_key;
protected JSONObject doInBackground(String... params) {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL url = new URL(query);
connection = (HttpURLConnection) url.openConnection();
connection.setConnectTimeout(5000);
connection.connect();
System.out.println(query);
InputStream stream = connection.getInputStream();
reader = new BufferedReader(new InputStreamReader(stream));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line+"\n");
Log.d("Response: ", "> " + line);
}
return new JSONObject(buffer.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
The received response is:
{
"errorMessage" : "This IP, site or mobile application is not authorized
to use this API key. Request received from IP address XX.XX.XX.XX, with
empty referer",
"status" : "REQUEST_DENIED"
}
If I set the Application restriction to None, everything works:
{
"dstOffset" : 3600,
"rawOffset" : 0,
"status" : "OK",
"timeZoneId" : "Europe/London",
"timeZoneName" : "British Summer Time"
}
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