CustomResourceOwnerPasswordTokenGranter.java 文件源码

@Override
protected OAuth2Authentication getOAuth2Authentication(ClientDetails client,
    TokenRequest tokenRequest) {

  Map<String, String> parameters = new LinkedHashMap<String, String>(
      tokenRequest.getRequestParameters());
  String username = parameters.get("username");
  String password = parameters.get("password");
  String clientId = client.getClientId();
  // Protect from downstream leaks of password
  parameters.remove("password");

  Authentication userAuth;
  if ("foo_app".equalsIgnoreCase(clientId)) {
    userAuth = new FooUsernamePasswordAuthenticationToken(username,
        password);
  } else if ("bar_app".equalsIgnoreCase(clientId)) {
    userAuth = new BarUsernamePasswordAuthenticationToken(username,
        password);
  } else {
    throw new InvalidGrantException("Unknown client: " + clientId);
  }

  ((AbstractAuthenticationToken) userAuth).setDetails(parameters);
  try {
    userAuth = authenticationManager.authenticate(userAuth);
  } catch (AccountStatusException ase) {
    //covers expired, locked, disabled cases (mentioned in section 5.2, draft 31)
    throw new InvalidGrantException(ase.getMessage());
  } catch (BadCredentialsException e) {
    // If the username/password are wrong the spec says we should send 400/invalid grant
    throw new InvalidGrantException(e.getMessage());
  }
  if (userAuth == null || !userAuth.isAuthenticated()) {
    throw new InvalidGrantException(
        "Could not authenticate user: " + username);
  }

  OAuth2Request storedOAuth2Request = getRequestFactory()
      .createOAuth2Request(client, tokenRequest);
  return new OAuth2Authentication(storedOAuth2Request, userAuth);
}