/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.rs.security.oauth2.filters;
import java.security.Principal;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.PreMatching;
import javax.ws.rs.ext.Provider;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.security.SimplePrincipal;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.phase.PhaseInterceptorChain;
import org.apache.cxf.rs.security.oauth2.common.AccessTokenValidation;
import org.apache.cxf.rs.security.oauth2.common.OAuthContext;
import org.apache.cxf.rs.security.oauth2.common.OAuthPermission;
import org.apache.cxf.rs.security.oauth2.common.UserSubject;
import org.apache.cxf.rs.security.oauth2.services.AbstractAccessTokenValidator;
import org.apache.cxf.rs.security.oauth2.utils.AuthorizationUtils;
import org.apache.cxf.rs.security.oauth2.utils.OAuthUtils;
import org.apache.cxf.security.SecurityContext;
/**
* JAX-RS OAuth2 filter which can be used to protect the end-user endpoints
*/
@Provider
@PreMatching
public class OAuthRequestFilter extends AbstractAccessTokenValidator
implements ContainerRequestFilter {
private static final Logger LOG = LogUtils.getL7dLogger(OAuthRequestFilter.class);
private boolean useUserSubject;
private boolean audienceIsEndpointAddress;
public void filter(ContainerRequestContext context) {
validateRequest(JAXRSUtils.getCurrentMessage());
}
protected void validateRequest(Message m) {
if (isCorsRequest(m)) {
return;
}
// Get the scheme and its data, Bearer only is supported by default
// WWW-Authenticate with the list of supported schemes will be sent back
// if the scheme is not accepted
String[] authParts = getAuthorizationParts(m);
String authScheme = authParts[0];
String authSchemeData = authParts[1];
// Get the access token
AccessTokenValidation accessTokenV = getAccessTokenValidation(authScheme, authSchemeData);
// Find the scopes which match the current request
List<OAuthPermission> permissions = accessTokenV.getTokenScopes();
List<OAuthPermission> matchingPermissions = new ArrayList<OAuthPermission>();
HttpServletRequest req = getMessageContext().getHttpServletRequest();
for (OAuthPermission perm : permissions) {
boolean uriOK = checkRequestURI(req, perm.getUris());
boolean verbOK = checkHttpVerb(req, perm.getHttpVerbs());
if (uriOK && verbOK) {
matchingPermissions.add(perm);
}
}
if (permissions.size() > 0 && matchingPermissions.isEmpty()) {
String message = "Client has no valid permissions";
LOG.warning(message);
throw new WebApplicationException(403);
}
// Create the security context and make it available on the message
SecurityContext sc = createSecurityContext(req, accessTokenV);
m.put(SecurityContext.class, sc);
// Also set the OAuthContext
OAuthContext oauthContext = new OAuthContext(accessTokenV.getTokenSubject(),
accessTokenV.getClientSubject(),
matchingPermissions,
accessTokenV.getTokenGrantType());
oauthContext.setClientId(accessTokenV.getClientId());
oauthContext.setTokenKey(accessTokenV.getTokenKey());
oauthContext.setTokenAudience(accessTokenV.getAudience());
m.setContent(OAuthContext.class, oauthContext);
}
protected boolean checkHttpVerb(HttpServletRequest req, List<String> verbs) {
if (!verbs.isEmpty()
&& !verbs.contains(req.getMethod())) {
String message = "Invalid http verb";
LOG.fine(message);
return false;
}
return true;
}
protected boolean checkRequestURI(HttpServletRequest request, List<String> uris) {
if (uris.isEmpty()) {
return true;
}
String servletPath = request.getPathInfo();
boolean foundValidScope = false;
for (String uri : uris) {
if (OAuthUtils.checkRequestURI(servletPath, uri)) {
foundValidScope = true;
break;
}
}
if (!foundValidScope) {
String message = "Invalid request URI: " + request.getRequestURL().toString();
LOG.warning(message);
}
return foundValidScope;
}
public void setUseUserSubject(boolean useUserSubject) {
this.useUserSubject = useUserSubject;
}
protected SecurityContext createSecurityContext(HttpServletRequest request,
AccessTokenValidation accessTokenV) {
UserSubject resourceOwnerSubject = accessTokenV.getTokenSubject();
UserSubject clientSubject = accessTokenV.getClientSubject();
final UserSubject theSubject =
OAuthRequestFilter.this.useUserSubject ? resourceOwnerSubject : clientSubject;
return new SecurityContext() {
public Principal getUserPrincipal() {
return theSubject != null ? new SimplePrincipal(theSubject.getLogin()) : null;
}
public boolean isUserInRole(String role) {
if (theSubject == null) {
return false;
}
return theSubject.getRoles().contains(role);
}
};
}
protected boolean isCorsRequest(Message m) {
//Redirection-based flows (Implicit Grant Flow specifically) may have
//the browser issuing CORS preflight OPTIONS request.
//org.apache.cxf.rs.security.cors.CrossOriginResourceSharingFilter can be
//used to handle preflights but local preflights (to be handled by the service code)
// will be blocked by this filter unless CORS filter has done the initial validation
// and set a message "local_preflight" property to true
return MessageUtils.isTrue(m.get("local_preflight"));
}
protected boolean validateAudience(String audience) {
if (audience == null) {
return true;
}
boolean isValid = super.validateAudience(audience);
if (isValid && audienceIsEndpointAddress) {
String requestPath = (String)PhaseInterceptorChain.getCurrentMessage().get(Message.REQUEST_URL);
isValid = requestPath.startsWith(audience);
}
return isValid;
}
public void setAudienceIsEndpointAddress(boolean audienceIsEndpointAddress) {
this.audienceIsEndpointAddress = audienceIsEndpointAddress;
}
protected String[] getAuthorizationParts(Message m) {
return AuthorizationUtils.getAuthorizationParts(getMessageContext(), supportedSchemes);
}
}