private MultiValueMap<String, String> getParametersForTokenRequest(
AuthorizationCodeResourceDetails resource, OAuth2SecurityContext context) {
MultiValueMap<String, String> form = new LinkedMultiValueMap<String, String>();
form.add("grant_type", "authorization_code");
form.add("code", context.getAuthorizationCode());
String redirectUri = resource.getPreEstablishedRedirectUri();
if (context != null && redirectUri == null) {
// no pre-established redirect uri: use the preserved state
// TODO: treat redirect URI as a special kind of state (this is a historical mini hack)
redirectUri = String.valueOf(context.getPreservedState());
} else {
// TODO: the state key is what should be sent, not the value
form.add("state", String.valueOf(context.getPreservedState()));
}
if (redirectUri == null) {
// still no redirect uri? just try the one for the current context...
redirectUri = context == null ? null : context.getUserAuthorizationRedirectUri();
}
form.add("redirect_uri", redirectUri);
return form;
}
public OAuth2AccessToken obtainNewAccessToken(OAuth2ProtectedResourceDetails details)
throws UserRedirectRequiredException, AccessDeniedException {
AuthorizationCodeResourceDetails resource = (AuthorizationCodeResourceDetails) details;
OAuth2SecurityContext context = OAuth2SecurityContextHolder.getContext();
if (context != null && context.getErrorParameters() != null) {
// there was an oauth error...
throw getSerializationService().deserializeError(context.getErrorParameters());
} else if (context == null || context.getAuthorizationCode() == null) {
throw getRedirectForAuthorization(resource, context);
} else {
return retrieveToken(getParametersForTokenRequest(resource, context), resource);
}
}