/**
* @param context if null, use the default format (Mozilla/5.0 (Linux; U; Android %s)
* AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 %sSafari/534.30).
* @return
*/
public static String getUserAgent(Context context) {
String webUserAgent = null;
if (context != null) {
try {
Class sysResCls = Class.forName("com.android.internal.R$string");
Field webUserAgentField = sysResCls.getDeclaredField("web_user_agent");
Integer resId = (Integer) webUserAgentField.get(null);
webUserAgent = context.getString(resId);
} catch (Throwable ignored) {
}
}
if (TextUtils.isEmpty(webUserAgent)) {
webUserAgent =
"Mozilla/5.0 (Linux; U; Android %s) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 %sSafari/533.1";
}
Locale locale = Locale.getDefault();
StringBuffer buffer = new StringBuffer();
// Add version
final String version = Build.VERSION.RELEASE;
if (version.length() > 0) {
buffer.append(version);
} else {
// default to "1.0"
buffer.append("1.0");
}
buffer.append("; ");
final String language = locale.getLanguage();
if (language != null) {
buffer.append(language.toLowerCase());
final String country = locale.getCountry();
if (country != null) {
buffer.append("-");
buffer.append(country.toLowerCase());
}
} else {
// default to "en"
buffer.append("en");
}
// add the model for the release build
if ("REL".equals(Build.VERSION.CODENAME)) {
final String model = Build.MODEL;
if (model.length() > 0) {
buffer.append("; ");
buffer.append(model);
}
}
final String id = Build.ID;
if (id.length() > 0) {
buffer.append(" Build/");
buffer.append(id);
}
return String.format(webUserAgent, buffer, "Mobile ");
}
public static void main(String[] args) throws Exception {
try {
Class.forName("javax.security.auth.kerberos.KerberosPrincipal");
System.out.println("Kerberos is present, nothing to test");
return;
} catch (ClassNotFoundException okay) {
}
// test SSLSocket
try (Socket s = SSLSocketFactory.getDefault().createSocket()) {
SSLSocket sslSocket = (SSLSocket) s;
checkNotSupported(sslSocket.getSupportedCipherSuites());
// attempt to enable each of the Kerberos cipher suites
for (String kcs : KERBEROS_CIPHER_SUITES) {
String[] suites = {kcs};
try {
sslSocket.setEnabledCipherSuites(suites);
throw new RuntimeException(
"SSLSocket.setEnabledCipherSuitessuites allowed "
+ kcs
+ " but Kerberos not supported");
} catch (IllegalArgumentException expected) {
}
}
}
// test SSLServerSocket
try (ServerSocket ss = SSLServerSocketFactory.getDefault().createServerSocket()) {
SSLServerSocket sslSocket = (SSLServerSocket) ss;
checkNotSupported(sslSocket.getSupportedCipherSuites());
// attempt to enable each of the Kerberos cipher suites
for (String kcs : KERBEROS_CIPHER_SUITES) {
String[] suites = {kcs};
try {
sslSocket.setEnabledCipherSuites(suites);
throw new RuntimeException(
"SSLSocket.setEnabledCipherSuitessuites allowed "
+ kcs
+ " but Kerberos not supported");
} catch (IllegalArgumentException expected) {
}
}
}
}