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MidPointGuiAuthorizationEvaluator.java
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/
MidPointGuiAuthorizationEvaluator.java
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/*
* Copyright (c) 2010-2017 Evolveum
*
* 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 com.evolveum.midpoint.web.security;
import com.evolveum.midpoint.prism.PrismObject;
import com.evolveum.midpoint.prism.query.ObjectFilter;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.security.api.*;
import com.evolveum.midpoint.security.enforcer.api.AccessDecision;
import com.evolveum.midpoint.security.enforcer.api.AuthorizationParameters;
import com.evolveum.midpoint.security.enforcer.api.ObjectSecurityConstraints;
import com.evolveum.midpoint.security.enforcer.api.SecurityEnforcer;
import com.evolveum.midpoint.task.api.Task;
import com.evolveum.midpoint.task.api.TaskManager;
import com.evolveum.midpoint.util.DisplayableValue;
import com.evolveum.midpoint.util.Producer;
import com.evolveum.midpoint.util.exception.CommunicationException;
import com.evolveum.midpoint.util.exception.ConfigurationException;
import com.evolveum.midpoint.util.exception.ExpressionEvaluationException;
import com.evolveum.midpoint.util.exception.ObjectNotFoundException;
import com.evolveum.midpoint.util.exception.SchemaException;
import com.evolveum.midpoint.util.exception.SecurityViolationException;
import com.evolveum.midpoint.util.exception.SystemException;
import com.evolveum.midpoint.util.logging.Trace;
import com.evolveum.midpoint.util.logging.TraceManager;
import com.evolveum.midpoint.web.application.DescriptorLoader;
import com.evolveum.midpoint.xml.ns._public.common.common_3.AbstractRoleType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.AuthorizationPhaseType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.ObjectType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.UserType;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.commons.lang.StringUtils;
import org.springframework.security.access.AccessDecisionManager;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.SecurityConfig;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
public class MidPointGuiAuthorizationEvaluator implements SecurityEnforcer, SecurityContextManager, AccessDecisionManager {
private static final Trace LOGGER = TraceManager.getTrace(MidPointGuiAuthorizationEvaluator.class);
private final SecurityEnforcer securityEnforcer;
private final SecurityContextManager securityContextManager;
private final TaskManager taskManager;
public MidPointGuiAuthorizationEvaluator(SecurityEnforcer securityEnforcer, SecurityContextManager securityContextManager, TaskManager taskManager) {
super();
this.securityEnforcer = securityEnforcer;
this.securityContextManager = securityContextManager;
this.taskManager = taskManager;
}
@Override
public UserProfileService getUserProfileService() {
return securityContextManager.getUserProfileService();
}
@Override
public void setUserProfileService(UserProfileService userProfileService) {
securityContextManager.setUserProfileService(userProfileService);
}
@Override
public void setupPreAuthenticatedSecurityContext(Authentication authentication) {
securityContextManager.setupPreAuthenticatedSecurityContext(authentication);
}
@Override
public void setupPreAuthenticatedSecurityContext(PrismObject<UserType> user) throws SchemaException {
securityContextManager.setupPreAuthenticatedSecurityContext(user);
}
@Override
public void setupPreAuthenticatedSecurityContext(MidPointPrincipal principal) {
securityContextManager.setupPreAuthenticatedSecurityContext(principal);
}
@Override
public boolean isAuthenticated() {
return securityContextManager.isAuthenticated();
}
@Override
public MidPointPrincipal getPrincipal() throws SecurityViolationException {
return securityContextManager.getPrincipal();
}
@Override
public <O extends ObjectType, T extends ObjectType> void failAuthorization(String operationUrl,
AuthorizationPhaseType phase, AuthorizationParameters<O,T> params,
OperationResult result) throws SecurityViolationException {
securityEnforcer.failAuthorization(operationUrl, phase, params, result);
}
// MidPoint pages invoke this method (through PageBase)
@Override
public <O extends ObjectType, T extends ObjectType> boolean isAuthorized(String operationUrl, AuthorizationPhaseType phase,
AuthorizationParameters<O,T> params, OwnerResolver ownerResolver, Task task, OperationResult result) throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException, CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.isAuthorized(operationUrl, phase, params, ownerResolver, task, result);
}
@Override
public boolean supports(ConfigAttribute attribute) {
if (attribute instanceof SecurityConfig
// class name equals, because WebExpressionConfigAttribute is non public class
|| "org.springframework.security.web.access.expression.WebExpressionConfigAttribute".equals(attribute.getClass().getName())) {
return true;
} else {
return false;
}
}
@Override
public boolean supports(Class<?> clazz) {
if (MethodInvocation.class.isAssignableFrom(clazz)) {
return true;
} else if (FilterInvocation.class.isAssignableFrom(clazz)) {
return true;
} else {
return false;
}
}
@Override
public <O extends ObjectType, T extends ObjectType> void authorize(String operationUrl, AuthorizationPhaseType phase,
AuthorizationParameters<O,T> params, OwnerResolver ownerResolver, Task task, OperationResult result)
throws SecurityViolationException, SchemaException, ObjectNotFoundException, ExpressionEvaluationException, CommunicationException, ConfigurationException {
securityEnforcer.authorize(operationUrl, phase, params, ownerResolver, task, result);
}
// Spring security invokes this method
@Override
public void decide(Authentication authentication, Object object, Collection<ConfigAttribute> configAttributes)
throws AccessDeniedException, InsufficientAuthenticationException {
// Too lound, just for testing
// LOGGER.trace("decide input: authentication={}, object={}, configAttributes={}",
// authentication, object, configAttributes);
if (!(object instanceof FilterInvocation)) {
LOGGER.trace("DECIDE: PASS because object is not FilterInvocation, it is {}", object);
return;
}
FilterInvocation filterInvocation = (FilterInvocation) object;
if (isPermitAll(filterInvocation)) {
LOGGER.trace("DECIDE: authentication={}, object={}: ALLOW ALL (permitAll)",
authentication, object);
return;
}
if ("/".equals(filterInvocation.getRequest().getServletPath())) {
// Special case, this is in fact "magic" redirect to home page or login page. It handles autz in its own way.
LOGGER.trace("DECIDE: authentication={}, object={}: ALLOW ALL (/)",
authentication, object);
return;
}
List<String> requiredActions = new ArrayList<>();
for (PageUrlMapping urlMapping : PageUrlMapping.values()) {
addSecurityConfig(filterInvocation, requiredActions, urlMapping.getUrl(), urlMapping.getAction());
}
Map<String, DisplayableValue<String>[]> actions = DescriptorLoader.getActions();
for (Map.Entry<String, DisplayableValue<String>[]> entry : actions.entrySet()) {
addSecurityConfig(filterInvocation, requiredActions, entry.getKey(), entry.getValue());
}
if (requiredActions.isEmpty()) {
LOGGER.trace("DECIDE: DENY because determined empty required actions from {}", filterInvocation);
SecurityUtil.logSecurityDeny(object, ": Not authorized (page without authorizations)", null, requiredActions);
// Sparse exception method by purpose. We do not want to expose details to attacker.
// Better message is logged.
throw new AccessDeniedException("Not authorized");
}
Object principalObject = authentication.getPrincipal();
if (!(principalObject instanceof MidPointPrincipal)) {
if (authentication.getPrincipal() instanceof String && "anonymousUser".equals(principalObject)){
SecurityUtil.logSecurityDeny(object, ": Not logged in");
LOGGER.trace("DECIDE: authentication={}, object={}, configAttributes={}: DENY (not logged in)",
authentication, object, configAttributes);
throw new InsufficientAuthenticationException("Not logged in.");
}
LOGGER.trace("DECIDE: authentication={}, object={}, configAttributes={}: ERROR (wrong principal)",
authentication, object, configAttributes);
throw new IllegalArgumentException("Expected that spring security principal will be of type "+
MidPointPrincipal.class.getName()+" but it was "+principalObject.getClass());
}
MidPointPrincipal principal = (MidPointPrincipal)principalObject;
Task task = taskManager.createTaskInstance(MidPointGuiAuthorizationEvaluator.class.getName() + ".decide");
AccessDecision decision;
try {
decision = securityEnforcer.decideAccess(principal, requiredActions, task, task.getResult());
} catch (SchemaException | ObjectNotFoundException | ExpressionEvaluationException
| CommunicationException | ConfigurationException | SecurityViolationException e) {
LOGGER.error("Error while processing authorization: {}", e.getMessage(), e);
LOGGER.trace("DECIDE: authentication={}, object={}, requiredActions={}: ERROR {}",
authentication, object, requiredActions, e.getMessage());
throw new SystemException("Error while processing authorization: "+e.getMessage(), e);
}
if (LOGGER.isTraceEnabled()) {
LOGGER.trace("DECIDE: authentication={}, object={}, requiredActions={}: {}",
authentication, object, requiredActions, decision);
}
if (!decision.equals(AccessDecision.ALLOW)) {
SecurityUtil.logSecurityDeny(object, ": Not authorized", null, requiredActions);
// Sparse exception method by purpose. We do not want to expose details to attacker.
// Better message is logged.
throw new AccessDeniedException("Not authorized");
}
}
private boolean isPermitAll(FilterInvocation filterInvocation) {
for (String url: DescriptorLoader.getPermitAllUrls()) {
AntPathRequestMatcher matcher = new AntPathRequestMatcher(url);
if (matcher.matches(filterInvocation.getRequest())) {
return true;
}
}
return false;
}
private void addSecurityConfig(FilterInvocation filterInvocation, List<String> requiredActions,
String url, DisplayableValue<String>[] actions) {
AntPathRequestMatcher matcher = new AntPathRequestMatcher(url);
if (!matcher.matches(filterInvocation.getRequest()) || actions == null) {
return;
}
for (DisplayableValue<String> action : actions) {
String actionUri = action.getValue();
if (StringUtils.isBlank(actionUri)) {
continue;
}
if (!requiredActions.contains(actionUri)) {
requiredActions.add(actionUri);
}
}
}
@Override
public AccessDecision decideAccess(MidPointPrincipal principal, List<String> requiredActions, Task task,
OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException,
CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.decideAccess(principal, requiredActions, task, result);
}
@Override
public <O extends ObjectType> ObjectSecurityConstraints compileSecurityConstraints(PrismObject<O> object, OwnerResolver ownerResolver, Task task, OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException, CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.compileSecurityConstraints(object, ownerResolver, task, result);
}
@Override
public <T extends ObjectType, O extends ObjectType> ObjectFilter preProcessObjectFilter(String operationUrl, AuthorizationPhaseType phase,
Class<T> objectType, PrismObject<O> object, ObjectFilter origFilter, String limitAuthorizationAction, Task task, OperationResult result) throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException, CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.preProcessObjectFilter(operationUrl, phase, objectType, object, origFilter, limitAuthorizationAction, task, result);
}
@Override
public <T extends ObjectType, O extends ObjectType> boolean canSearch(String operationUrl,
AuthorizationPhaseType phase, Class<T> objectType, PrismObject<O> object, boolean includeSpecial, ObjectFilter filter, Task task, OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException, CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.canSearch(operationUrl, phase, objectType, object, includeSpecial, filter, task, result);
}
@Override
public MidPointPrincipal createDonorPrincipal(MidPointPrincipal attorneyPrincipal,
String attorneyAuthorizationAction, PrismObject<UserType> donor, Task task,
OperationResult result)
throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException,
CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.createDonorPrincipal(attorneyPrincipal, attorneyAuthorizationAction, donor, task, result);
}
@Override
public <T> T runAs(Producer<T> producer, PrismObject<UserType> user) throws SchemaException {
return securityContextManager.runAs(producer, user);
}
@Override
public <T> T runPrivileged(Producer<T> producer) {
return securityContextManager.runPrivileged(producer);
}
@Override
public <O extends ObjectType, R extends AbstractRoleType> ItemSecurityDecisions getAllowedRequestAssignmentItems(
MidPointPrincipal midPointPrincipal, String actionUri, PrismObject<O> object, PrismObject<R> target,
OwnerResolver ownerResolver, Task task, OperationResult result) throws SchemaException, ObjectNotFoundException, ExpressionEvaluationException, CommunicationException, ConfigurationException, SecurityViolationException {
return securityEnforcer.getAllowedRequestAssignmentItems(midPointPrincipal, actionUri, object, target, ownerResolver, task, result);
}
@Override
public void storeConnectionInformation(HttpConnectionInformation value) {
securityContextManager.storeConnectionInformation(value);
}
@Override
public HttpConnectionInformation getStoredConnectionInformation() {
return securityContextManager.getStoredConnectionInformation();
}
}