private String buildCallbackUrlForImplicitResponseType(
final J2EContext context,
final Authentication authentication,
final Service service,
final String redirectUri)
throws Exception {
final String state = authentication.getAttributes().get(OAuthConstants.STATE).toString();
final String nonce = authentication.getAttributes().get(OAuthConstants.NONCE).toString();
final AccessToken accessToken = generateAccessToken(service, authentication, context);
logger.debug("Generated Oauth access token: {}", accessToken);
final URIBuilder builder = new URIBuilder(redirectUri);
final StringBuilder stringBuilder = new StringBuilder();
stringBuilder
.append(OAuthConstants.ACCESS_TOKEN)
.append('=')
.append(accessToken.getId())
.append('&')
.append(OAuthConstants.TOKEN_TYPE)
.append('=')
.append(OAuthConstants.TOKEN_TYPE_BEARER)
.append('&')
.append(OAuthConstants.EXPIRES_IN)
.append('=')
.append(casProperties.getTicket().getTgt().getTimeToKillInSeconds());
if (StringUtils.isNotBlank(state)) {
stringBuilder
.append('&')
.append(OAuthConstants.STATE)
.append('=')
.append(EncodingUtils.urlEncode(state));
}
if (StringUtils.isNotBlank(nonce)) {
stringBuilder
.append('&')
.append(OAuthConstants.NONCE)
.append('=')
.append(EncodingUtils.urlEncode(nonce));
}
builder.setFragment(stringBuilder.toString());
return builder.toString();
}
private String decryptCredential(final String cred) {
try {
final PrivateKeyFactoryBean factory = new PrivateKeyFactoryBean();
factory.setAlgorithm("RSA");
factory.setLocation(new ClassPathResource("RSA1024Private.p8"));
factory.setSingleton(false);
final PrivateKey privateKey = factory.getObject();
logger.debug("Initializing cipher based on [{}]", privateKey.getAlgorithm());
final Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
logger.debug("Decoding value [{}]", cred);
final byte[] cred64 = EncodingUtils.decodeBase64(cred);
logger.debug("Initializing decrypt-mode via private key [{}]", privateKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateKey);
final byte[] cipherData = cipher.doFinal(cred64);
return new String(cipherData);
} catch (final Exception e) {
throw Throwables.propagate(e);
}
}