@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
if (LOG.isDebugEnabled()) LOG.debug("Looking for user by uniqueId " + username);
if (StringUtils.isEmpty(username)) return null;
Cache.ValueWrapper wrapper = cacheService.get(CacheName.IDENTITY, username);
UserDetails userDetails = null;
if (wrapper != null) {
userDetails = (UserDetails) wrapper.get();
if (userDetails == null) throw new UsernameNotFoundException(username);
return userDetails;
}
if (LOG.isDebugEnabled()) LOG.debug("Retrieving user by uniqueId " + username);
try {
userDetails = super.loadUserByUsername(username);
} finally {
cacheService.put(CacheName.IDENTITY, username, userDetails);
}
return userDetails;
}
private <T, E extends Throwable> T getValue(Callback<T, E> callback, Cache cache, Object key)
throws E {
@Nullable final Cache.ValueWrapper valueWrapper = cache.get(key);
if (valueWrapper != null) {
return cast(valueWrapper.get());
}
final T loadedValue = callback.call();
putValue(cache, key, loadedValue);
return loadedValue;
}
public UserDetails getUserFromCache(String username) {
Cache.ValueWrapper element = username != null ? cache.get(username) : null;
if (logger.isDebugEnabled()) {
logger.debug("Cache hit: " + (element != null) + "; username: " + username);
}
if (element == null) {
return null;
} else {
return (UserDetails) element.get();
}
}
@Override
public CsrfToken loadToken(HttpServletRequest request) {
String token = Strings.clean(request.getParameter(parameterName));
if (token == null) {
token = Strings.clean(request.getHeader(headerName));
}
if (token == null) {
return null;
}
try {
Jws<Claims> jws = Jwts.parser().setSigningKey(signingKey).parseClaimsJws(token);
// signature is valid, now let's ensure it hasn't been submitted before:
String id = jws.getBody().getId();
String usedNonce = null;
Cache.ValueWrapper wrapper = nonceCache.get(id);
if (wrapper != null) {
Object val = wrapper.get();
if (val != null) {
usedNonce = val.toString();
}
}
if (usedNonce == null) {
// CSRF token hasn't been used yet, mark it as used:
nonceCache.put(id, token);
return new DefaultCsrfToken(headerName, parameterName, token);
}
} catch (Exception e) {
log.debug(
"CSRF token is invalid (this is likely to happen and not necessarily an error condition).",
e);
}
return null;
}
@Override
public T get(Object key) {
Cache.ValueWrapper wrapper = cache.get(key);
return wrapper == null ? null : (T)wrapper.get();
}