private void saslAuthLogin(String username, String password)
throws MessagingException, AuthenticationFailedException, IOException {
try {
executeSimpleCommand("AUTH LOGIN");
executeSimpleCommand(new String(Base64.encodeBase64(username.getBytes())), true);
executeSimpleCommand(new String(Base64.encodeBase64(password.getBytes())), true);
} catch (MessagingException me) {
if (me.getMessage().length() > 1 && me.getMessage().charAt(1) == '3') {
throw new AuthenticationFailedException("AUTH LOGIN failed (" + me.getMessage() + ")");
}
throw me;
}
}
private void authPlain() throws MessagingException {
executeSimpleCommand("AUTH PLAIN");
try {
byte[] encodedBytes =
Base64.encodeBase64(("\000" + mUsername + "\000" + mPassword).getBytes());
executeSimpleCommand(new String(encodedBytes), true);
} catch (Pop3ErrorResponse e) {
throw new AuthenticationFailedException(
"POP3 SASL auth PLAIN authentication failed: " + e.getMessage(), e);
}
}
private void authExternal() throws MessagingException {
try {
executeSimpleCommand(String.format("AUTH EXTERNAL %s", Base64.encode(mUsername)), false);
} catch (Pop3ErrorResponse e) {
/*
* Provide notification to the user of a problem authenticating
* using client certificates. We don't use an
* AuthenticationFailedException because that would trigger a
* "Username or password incorrect" notification in
* AccountSetupCheckSettings.
*/
throw new CertificateValidationException(
"POP3 client certificate authentication failed: " + e.getMessage(), e);
}
}