Java tutorial
/******************************************************************************* * Copyright 2015 The MITRE Corporation * and the MIT Kerberos and Internet Trust Consortium * * Licensed 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.smartplatforms.openid.connect.token; import com.google.common.base.Splitter; import com.google.common.base.Strings; import com.google.common.collect.Sets; import org.mitre.oauth2.model.SystemScope; import org.mitre.oauth2.service.SystemScopeService; import org.mitre.openid.connect.model.ApprovedSite; import org.mitre.openid.connect.model.WhitelistedSite; import org.mitre.openid.connect.service.ApprovedSiteService; import org.mitre.openid.connect.service.WhitelistedSiteService; import org.mitre.openid.connect.token.TofuUserApprovalHandler; import org.mitre.openid.connect.web.AuthenticationTimeStamper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.security.core.Authentication; import org.springframework.security.oauth2.provider.AuthorizationRequest; import org.springframework.security.oauth2.provider.ClientDetails; import org.springframework.security.oauth2.provider.ClientDetailsService; import org.springframework.security.oauth2.provider.approval.UserApprovalHandler; import org.springframework.stereotype.Component; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; import javax.servlet.http.HttpSession; import java.util.*; import static org.mitre.openid.connect.request.ConnectRequestParameters.*; /** * Custom User Approval Handler implementation which uses a concept of a whitelist, * blacklist, and greylist. * * Blacklisted sites will be caught and handled before this * point. * * Whitelisted sites will be automatically approved, and an ApprovedSite entry will * be created for the site the first time a given user access it. * * All other sites fall into the greylist - the user will be presented with the user * approval page upon their first visit * @author aanganes * */ @Component("smartTofuUserApprovalHandler") public class SmartTofuUserApprovalHandler extends TofuUserApprovalHandler implements UserApprovalHandler { @Autowired private ApprovedSiteService approvedSiteService; @Autowired private WhitelistedSiteService whitelistedSiteService; @Autowired private ClientDetailsService clientDetailsService; @Autowired private SystemScopeService systemScopes; /** * Check if the user has already stored a positive approval decision for this site; or if the * site is whitelisted, approve it automatically. * * Otherwise, return false so that the user will see the approval page and can make their own decision. * * @param authorizationRequest the incoming authorization request * @param userAuthentication the Principal representing the currently-logged-in user * * @return true if the site is approved, false otherwise */ @Override public boolean isApproved(AuthorizationRequest authorizationRequest, Authentication userAuthentication) { // if this request is already approved, pass that info through // (this flag may be set by updateBeforeApproval, which can also do funny things with scopes, etc) if (authorizationRequest.isApproved()) { return true; } else { // if not, check to see if the user has approved it if (Boolean.parseBoolean(authorizationRequest.getApprovalParameters().get("user_oauth_approval"))) { // TODO: make parameter name configurable? // check the value of the CSRF parameter if (authorizationRequest.getExtensions().get(CSRF) != null) { if (authorizationRequest.getExtensions().get(CSRF) .equals(authorizationRequest.getApprovalParameters().get(CSRF))) { // make sure the user is actually authenticated return userAuthentication.isAuthenticated(); } } } // if the above doesn't pass, it's not yet approved return false; } } /** * Check if the user has already stored a positive approval decision for this site; or if the * site is whitelisted, approve it automatically. * * Otherwise the user will be directed to the approval page and can make their own decision. * * @param authorizationRequest the incoming authorization request * @param userAuthentication the Principal representing the currently-logged-in user * * @return the updated AuthorizationRequest */ @Override public AuthorizationRequest checkForPreApproval(AuthorizationRequest authorizationRequest, Authentication userAuthentication) { //First, check database to see if the user identified by the userAuthentication has stored an approval decision String userId = userAuthentication.getName(); String clientId = authorizationRequest.getClientId(); //lookup ApprovedSites by userId and clientId boolean alreadyApproved = false; // find out if we're supposed to force a prompt on the user or not String prompt = (String) authorizationRequest.getExtensions().get(PROMPT); List<String> prompts = Splitter.on(PROMPT_SEPARATOR).splitToList(Strings.nullToEmpty(prompt)); if (!prompts.contains(PROMPT_SEPARATOR)) { // if the prompt parameter is set to "consent" then we can't use approved sites or whitelisted sites // otherwise, we need to check them below Collection<ApprovedSite> aps = approvedSiteService.getByClientIdAndUserId(clientId, userId); for (ApprovedSite ap : aps) { if (!ap.isExpired()) { // if we find one that fits... if (systemScopes.scopesMatch(ap.getAllowedScopes(), authorizationRequest.getScope())) { //We have a match; update the access date on the AP entry and return true. ap.setAccessDate(new Date()); approvedSiteService.save(ap); String apId = ap.getId().toString(); authorizationRequest.getExtensions().put(APPROVED_SITE, apId); authorizationRequest.setApproved(true); alreadyApproved = true; setAuthTime(authorizationRequest); } } } if (!alreadyApproved) { WhitelistedSite ws = whitelistedSiteService.getByClientId(clientId); if (ws != null && systemScopes.scopesMatch(ws.getAllowedScopes(), authorizationRequest.getScope())) { authorizationRequest.setApproved(true); setAuthTime(authorizationRequest); } } } return authorizationRequest; } @Override public AuthorizationRequest updateAfterApproval(AuthorizationRequest authorizationRequest, Authentication userAuthentication) { String userId = userAuthentication.getName(); String clientId = authorizationRequest.getClientId(); ClientDetails client = clientDetailsService.loadClientByClientId(clientId); // This must be re-parsed here because SECOAUTH forces us to call things in a strange order if (Boolean.parseBoolean(authorizationRequest.getApprovalParameters().get("user_oauth_approval")) && authorizationRequest.getExtensions().get(CSRF) != null && authorizationRequest.getExtensions() .get(CSRF).equals(authorizationRequest.getApprovalParameters().get(CSRF))) { authorizationRequest.setApproved(true); // process scopes from user input Set<String> allowedScopes = Sets.newHashSet(); Map<String, String> approvalParams = authorizationRequest.getApprovalParameters(); Set<String> keys = approvalParams.keySet(); for (String key : keys) { if (key.startsWith("scope_")) { //This is a scope parameter from the approval page. The value sent back should //be the scope string. Check to make sure it is contained in the client's //registered allowed scopes. String scope = approvalParams.get(key); Set<String> approveSet = Sets.newHashSet(scope); //Make sure this scope is allowed for the given client if (systemScopes.scopesMatch(client.getScope(), approveSet)) { // If it's structured, assign the user-specified parameter SystemScope systemScope = systemScopes.getByValue(scope); if (systemScope != null && systemScope.isStructured()) { String paramValue = approvalParams.get("scopeparam_" + scope); if (!Strings.isNullOrEmpty(paramValue)) { allowedScopes.add(scope + ":" + paramValue); } else { allowedScopes.add(scope); } // .. and if it's unstructured, we're all set } else { allowedScopes.add(scope); } } } } // inject the user-allowed scopes into the auth request authorizationRequest.setScope(allowedScopes); //Only store an ApprovedSite if the user has checked "remember this decision": String remember = authorizationRequest.getApprovalParameters().get("remember"); if (!Strings.isNullOrEmpty(remember) && !remember.equals("none")) { Date timeout = null; if (remember.equals("one-hour")) { // set the timeout to one hour from now Calendar cal = Calendar.getInstance(); cal.add(Calendar.HOUR, 1); timeout = cal.getTime(); } ApprovedSite newSite = approvedSiteService.createApprovedSite(clientId, userId, timeout, allowedScopes); String newSiteId = newSite.getId().toString(); authorizationRequest.getExtensions().put(APPROVED_SITE, newSiteId); } setAuthTime(authorizationRequest); } return authorizationRequest; } /** * Get the auth time out of the current session and add it to the * auth request in the extensions map. * * @param authorizationRequest */ private void setAuthTime(AuthorizationRequest authorizationRequest) { // Get the session auth time, if we have it, and store it in the request ServletRequestAttributes attr = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes(); if (attr != null) { HttpSession session = attr.getRequest().getSession(); if (session != null) { Date authTime = (Date) session.getAttribute(AuthenticationTimeStamper.AUTH_TIMESTAMP); if (authTime != null) { String authTimeString = Long.toString(authTime.getTime()); authorizationRequest.getExtensions().put(AuthenticationTimeStamper.AUTH_TIMESTAMP, authTimeString); } } } } @Override public Map<String, Object> getUserApprovalRequest(AuthorizationRequest authorizationRequest, Authentication userAuthentication) { Map<String, Object> model = new HashMap<String, Object>(); // In case of a redirect we might want the request parameters to be included model.putAll(authorizationRequest.getRequestParameters()); return model; } }