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SecurityEnforcerImpl.java
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SecurityEnforcerImpl.java
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/*
* Copyright (c) 2014-2017 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.security.impl;
import com.evolveum.midpoint.prism.*;
import com.evolveum.midpoint.prism.delta.ContainerDelta;
import com.evolveum.midpoint.prism.delta.ItemDelta;
import com.evolveum.midpoint.prism.delta.ObjectDelta;
import com.evolveum.midpoint.prism.path.ItemPath;
import com.evolveum.midpoint.prism.query.*;
import com.evolveum.midpoint.prism.query.builder.QueryBuilder;
import com.evolveum.midpoint.prism.query.builder.S_AtomicFilterExit;
import com.evolveum.midpoint.prism.query.builder.S_FilterEntryOrEmpty;
import com.evolveum.midpoint.repo.api.RepositoryService;
import com.evolveum.midpoint.schema.constants.SchemaConstants;
import com.evolveum.midpoint.schema.result.OperationResult;
import com.evolveum.midpoint.schema.util.MiscSchemaUtil;
import com.evolveum.midpoint.schema.util.ObjectQueryUtil;
import com.evolveum.midpoint.schema.util.ObjectTypeUtil;
import com.evolveum.midpoint.security.api.*;
import com.evolveum.midpoint.util.Producer;
import com.evolveum.midpoint.util.QNameUtil;
import com.evolveum.midpoint.util.exception.AuthorizationException;
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.xml.ns._public.common.common_3.*;
import com.evolveum.prism.xml.ns._public.query_3.SearchFilterType;
import com.evolveum.prism.xml.ns._public.types_3.ItemPathType;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.commons.lang.BooleanUtils;
import org.apache.commons.lang.mutable.MutableBoolean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.SecurityConfig;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.authentication.preauth.PreAuthenticatedAuthenticationToken;
import org.springframework.stereotype.Component;
import javax.xml.namespace.QName;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/**
* @author Radovan Semancik
*
*/
@Component("securityEnforcer")
public class SecurityEnforcerImpl implements SecurityEnforcer {
private static final Trace LOGGER = TraceManager.getTrace(SecurityEnforcerImpl.class);
private static final boolean FILTER_TRACE_ENABLED = false;
@Autowired
@Qualifier("cacheRepositoryService")
private RepositoryService repositoryService;
@Autowired
private PrismContext prismContext;
private ThreadLocal<HttpConnectionInformation> connectionInformationThreadLocal = new ThreadLocal<>();
private UserProfileService userProfileService = null;
@Override
public UserProfileService getUserProfileService() {
return userProfileService;
}
@Override
public void setUserProfileService(UserProfileService userProfileService) {
this.userProfileService = userProfileService;
}
@Override
public MidPointPrincipal getPrincipal() throws SecurityViolationException {
return SecurityUtil.getPrincipal();
}
@Override
public boolean isAuthenticated() {
return SecurityUtil.isAuthenticated();
}
@Override
public void setupPreAuthenticatedSecurityContext(Authentication authentication) {
SecurityContext securityContext = SecurityContextHolder.getContext();
securityContext.setAuthentication(authentication);
}
@Override
public void setupPreAuthenticatedSecurityContext(PrismObject<UserType> user) throws SchemaException {
MidPointPrincipal principal;
if (userProfileService == null) {
LOGGER.warn("No user profile service set up in SecurityEnforcer. "
+ "This is OK in low-level tests but it is a serious problem in running system");
principal = new MidPointPrincipal(user.asObjectable());
} else {
principal = userProfileService.getPrincipal(user);
}
Authentication authentication = new PreAuthenticatedAuthenticationToken(principal, null);
setupPreAuthenticatedSecurityContext(authentication);
}
@Override
public <O extends ObjectType, T extends ObjectType> boolean isAuthorized(String operationUrl, AuthorizationPhaseType phase,
PrismObject<O> object, ObjectDelta<O> delta, PrismObject<T> target, OwnerResolver ownerResolver)
throws SchemaException {
MidPointPrincipal midPointPrincipal = getMidPointPrincipal();
if (phase == null) {
if (!isAuthorizedInternal(midPointPrincipal, operationUrl, AuthorizationPhaseType.REQUEST, object, delta, target, ownerResolver)) {
return false;
}
return isAuthorizedInternal(midPointPrincipal, operationUrl, AuthorizationPhaseType.EXECUTION, object, delta, target, ownerResolver);
} else {
return isAuthorizedInternal(midPointPrincipal, operationUrl, phase, object, delta, target, ownerResolver);
}
}
private <O extends ObjectType, T extends ObjectType> boolean isAuthorizedInternal(MidPointPrincipal midPointPrincipal, String operationUrl, AuthorizationPhaseType phase,
PrismObject<O> object, ObjectDelta<O> delta, PrismObject<T> target, OwnerResolver ownerResolver)
throws SchemaException {
if (AuthorizationConstants.AUTZ_NO_ACCESS_URL.equals(operationUrl)){
return false;
}
if (phase == null) {
throw new IllegalArgumentException("No phase");
}
boolean allow = false;
LOGGER.trace("AUTZ: evaluating authorization principal={}, op={}, phase={}, object={}, delta={}, target={}",
midPointPrincipal, operationUrl, phase, object, delta, target);
final Collection<ItemPath> allowedItems = new ArrayList<>();
Collection<Authorization> authorities = getAuthorities(midPointPrincipal);
if (authorities != null) {
for (GrantedAuthority authority: authorities) {
if (authority instanceof Authorization) {
Authorization autz = (Authorization)authority;
String autzHumanReadableDesc = autz.getHumanReadableDesc();
LOGGER.trace("Evaluating {}", autzHumanReadableDesc);
// First check if the authorization is applicable.
// action
if (!autz.getAction().contains(operationUrl) && !autz.getAction().contains(AuthorizationConstants.AUTZ_ALL_URL)) {
LOGGER.trace(" {} not applicable for operation {}", autzHumanReadableDesc, operationUrl);
continue;
}
// phase
if (autz.getPhase() == null) {
LOGGER.trace(" {} is applicable for all phases (continuing evaluation)", autzHumanReadableDesc);
} else {
if (autz.getPhase() != phase) {
LOGGER.trace(" {} is not applicable for phases {} (breaking evaluation)", autzHumanReadableDesc, phase);
continue;
} else {
LOGGER.trace(" {} is applicable for phases {} (continuing evaluation)", autzHumanReadableDesc, phase);
}
}
// object
if (isApplicable(autz.getObject(), object, midPointPrincipal, ownerResolver, "object", autzHumanReadableDesc)) {
LOGGER.trace(" {} applicable for object {} (continuing evaluation)", autzHumanReadableDesc, object);
} else {
LOGGER.trace(" {} not applicable for object {}, none of the object specifications match (breaking evaluation)",
autzHumanReadableDesc, object);
continue;
}
// target
if (isApplicable(autz.getTarget(), target, midPointPrincipal, ownerResolver, "target", autzHumanReadableDesc)) {
LOGGER.trace(" {} applicable for target {} (continuing evaluation)", autzHumanReadableDesc, object);
} else {
LOGGER.trace(" {} not applicable for target {}, none of the target specifications match (breaking evaluation)",
autzHumanReadableDesc, object);
continue;
}
// authority is applicable to this situation. now we can process the decision.
AuthorizationDecisionType decision = autz.getDecision();
if (decision == null || decision == AuthorizationDecisionType.ALLOW) {
// if there is more than one role which specify
// different authz (e.g one role specify allow for whole
// object, the other role specify allow only for some
// attributes. this ended with allow for whole object (MID-2018)
Collection<ItemPath> allowed = getItems(autz);
if (allow && allowedItems.isEmpty()){
LOGGER.trace(" {}: ALLOW operation {} (but continue evaluation)", autzHumanReadableDesc, operationUrl);
} else if (allow && allowed.isEmpty()){
allowedItems.clear();
} else {
allowedItems.addAll(allowed);
}
LOGGER.trace(" {}: ALLOW operation {} (but continue evaluation)", autzHumanReadableDesc, operationUrl);
allow = true;
// Do NOT break here. Other authorization statements may still deny the operation
} else {
// item
if (isApplicableItem(autz, object, delta)) {
LOGGER.trace(" {}: Deny authorization applicable for items (continuing evaluation)", autzHumanReadableDesc);
} else {
LOGGER.trace(" {} not applicable for items (breaking evaluation)", autzHumanReadableDesc);
continue;
}
LOGGER.trace(" {}: DENY operation {}", autzHumanReadableDesc, operationUrl);
allow = false;
// Break right here. Deny cannot be overridden by allow. This decision cannot be changed.
break;
}
} else {
LOGGER.warn("Unknown authority type {} in user {}", authority.getClass(), getUsername(midPointPrincipal));
}
}
}
if (allow) {
// Still check allowedItems. We may still deny the operation.
if (allowedItems.isEmpty()) {
// This means all items are allowed. No need to check anything
LOGGER.trace(" Empty list of allowed items, operation allowed");
} else {
// all items in the object and delta must be allowed
if (delta != null) {
allow = processAuthorizationDelta(delta, allowedItems, phase);
} else if (object != null) {
allow = processAuthorizationObject(object, allowedItems, phase);
}
}
}
if (LOGGER.isTraceEnabled()) {
LOGGER.trace("AUTZ result: principal={}, operation={}: {}", midPointPrincipal, operationUrl, allow);
}
return allow;
}
private <O extends ObjectType> boolean processAuthorizationObject(PrismContainer<O> object, final Collection<ItemPath> allowedItems, AuthorizationPhaseType phase) {
return isContainerAllowed(object.getValue(), allowedItems, phase);
}
private <C extends Containerable> boolean processAuthorizationContainerDelta(ContainerDelta<C> cdelta, final Collection<ItemPath> allowedItems, AuthorizationPhaseType phase) {
final MutableBoolean itemDecision = new MutableBoolean(true);
cdelta.foreach(cval -> {
if (!isContainerAllowed(cval, allowedItems, phase)) {
itemDecision.setValue(false);
}
});
return itemDecision.booleanValue();
}
private boolean isContainerAllowed(PrismContainerValue<?> cval, Collection<ItemPath> allowedItems, AuthorizationPhaseType phase) {
if (cval.isEmpty()) {
// TODO: problem with empty containers such as
// orderConstraint in assignment. Skip all
// empty items ... for now.
return true;
}
boolean decision = true;
for (Item<?, ?> item: cval.getItems()) {
ItemPath itemPath = item.getPath();
if (item instanceof PrismContainer<?>) {
if (isAllowedItem(itemPath, allowedItems, phase)) {
// entire container is allowed. We do not need to go deeper
} else {
List<PrismContainerValue<?>> subValues = (List)((PrismContainer<?>)item).getValues();
for (PrismContainerValue<?> subValue: subValues) {
if (!isContainerAllowed(subValue, allowedItems, phase)) {
decision = false;
}
}
}
} else {
if (!isAllowedItem(itemPath, allowedItems, phase)) {
LOGGER.trace(" DENY operation because item {} in the object is not allowed", itemPath);
decision = false;
}
}
}
return decision;
}
private <O extends ObjectType> boolean processAuthorizationDelta(ObjectDelta<O> delta, final Collection<ItemPath> allowedItems, AuthorizationPhaseType phase) {
if (delta.isAdd()) {
return processAuthorizationObject(delta.getObjectToAdd(), allowedItems, phase);
} else {
for (ItemDelta<?,?> itemDelta: delta.getModifications()) {
ItemPath itemPath = itemDelta.getPath();
if (itemDelta instanceof ContainerDelta<?>) {
if (!isAllowedItem(itemPath, allowedItems, phase)) {
if (!processAuthorizationContainerDelta((ContainerDelta<?>)itemDelta, allowedItems, phase)) {
return false;
}
}
} else {
if (!isAllowedItem(itemPath, allowedItems, phase)) {
LOGGER.trace(" DENY operation because item {} in the delta is not allowed", itemPath);
return false;
}
}
}
return true;
}
}
private boolean isAllowedItem(ItemPath itemPath, Collection<ItemPath> allowedItems, AuthorizationPhaseType phase) {
return isInList(itemPath, allowedItems) || allowedForExecutionByDefault(itemPath, phase);
}
private boolean allowedForExecutionByDefault(ItemPath itemPath, AuthorizationPhaseType phase) {
if (!AuthorizationPhaseType.EXECUTION.equals(phase)) {
return false;
}
return isInList(itemPath, AuthorizationConstants.EXECUTION_ITEMS_ALLOWED_BY_DEFAULT);
}
private boolean isInList(ItemPath itemPath, Collection<ItemPath> allowedItems) {
boolean itemAllowed = false;
for (ItemPath allowedPath: allowedItems) {
if (allowedPath.isSubPathOrEquivalent(itemPath)) {
itemAllowed = true;
break;
}
}
return itemAllowed;
}
@Override
public <O extends ObjectType, T extends ObjectType> void authorize(String operationUrl, AuthorizationPhaseType phase,
PrismObject<O> object, ObjectDelta<O> delta, PrismObject<T> target, OwnerResolver ownerResolver,
OperationResult result) throws SecurityViolationException, SchemaException {
boolean allow = isAuthorized(operationUrl, phase, object, delta, target, ownerResolver);
if (!allow) {
failAuthorization(operationUrl, phase, object, delta, target, result);
}
}
@Override
public <O extends ObjectType, T extends ObjectType> void failAuthorization(String operationUrl, AuthorizationPhaseType phase,
PrismObject<O> object, ObjectDelta<O> delta, PrismObject<T> target, OperationResult result) throws SecurityViolationException {
MidPointPrincipal principal = getPrincipal();
String username = getQuotedUsername(principal);
String message;
if (target == null && object == null) {
message = "User '"+username+"' not authorized for operation "+ operationUrl;
} else if (target == null) {
message = "User '"+username+"' not authorized for operation "+ operationUrl + " on " + object;
} else {
message = "User '"+username+"' not authorized for operation "+ operationUrl + " on " + object + " with target " + target;
}
LOGGER.error("{}", message);
AuthorizationException e = new AuthorizationException(message);
result.recordFatalError(e.getMessage(), e);
throw e;
}
private <O extends ObjectType> boolean isApplicable(List<OwnedObjectSelectorType> objectSpecTypes, PrismObject<O> object,
MidPointPrincipal midPointPrincipal, OwnerResolver ownerResolver, String desc, String autzHumanReadableDesc) throws SchemaException {
if (objectSpecTypes != null && !objectSpecTypes.isEmpty()) {
if (object == null) {
LOGGER.trace(" {} not applicable for null {}", autzHumanReadableDesc, desc);
return false;
}
for (OwnedObjectSelectorType autzObject: objectSpecTypes) {
if (isApplicable(autzObject, object, midPointPrincipal, ownerResolver, desc, autzHumanReadableDesc)) {
return true;
}
}
return false;
} else {
LOGGER.trace(" {}: No {} specification in authorization (authorization is applicable)", autzHumanReadableDesc, desc);
return true;
}
}
private <O extends ObjectType> boolean isApplicable(SubjectedObjectSelectorType objectSelector, PrismObject<O> object,
MidPointPrincipal principal, OwnerResolver ownerResolver, String desc, String autzHumanReadableDesc) throws SchemaException {
if (!repositoryService.selectorMatches(objectSelector, object, LOGGER, " " + autzHumanReadableDesc + " not applicable for " + desc + " because of ")) {
return false;
}
OrgRelationObjectSpecificationType specOrgRelation = objectSelector.getOrgRelation();
RoleRelationObjectSpecificationType specRoleRelation = objectSelector.getRoleRelation();
// Special
List<SpecialObjectSpecificationType> specSpecial = objectSelector.getSpecial();
if (specSpecial != null && !specSpecial.isEmpty()) {
if (objectSelector.getFilter() != null || objectSelector.getOrgRef() != null || specOrgRelation != null || specRoleRelation != null) {
throw new SchemaException("Both filter/org/role and special "+desc+" specification specified in "+autzHumanReadableDesc);
}
for (SpecialObjectSpecificationType special: specSpecial) {
if (special == SpecialObjectSpecificationType.SELF) {
String principalOid = principal != null ? principal.getOid() : null;
if (principalOid == null) {
// This is a rare case. It should not normally happen. But it may happen in tests
// or during initial import. Therefore we are not going to die here. Just ignore it.
} else {
if (principalOid.equals(object.getOid())) {
LOGGER.trace(" {}: 'self' authorization applicable for {}", autzHumanReadableDesc, desc);
return true;
} else {
LOGGER.trace(" {}: 'self' authorization not applicable for {}, principal OID: {}, {} OID {}",
autzHumanReadableDesc, desc, principalOid, desc, object.getOid());
}
}
} else {
throw new SchemaException("Unsupported special "+desc+" specification specified in "+autzHumanReadableDesc+": "+special);
}
}
return false;
} else {
LOGGER.trace(" {}: specials empty: {}", autzHumanReadableDesc, specSpecial);
}
// orgRelation
if (specOrgRelation != null) {
boolean match = false;
for (ObjectReferenceType subjectParentOrgRef: principal.getUser().getParentOrgRef()) {
if (matchesOrgRelation(object, subjectParentOrgRef, specOrgRelation, autzHumanReadableDesc, desc)) {
LOGGER.trace(" org {} applicable for {}, object OID {} because subject org {} matches",
autzHumanReadableDesc, desc, object.getOid(), subjectParentOrgRef.getOid());
match = true;
break;
}
}
if (!match) {
LOGGER.trace(" org {} not applicable for {}, object OID {} because none of the subject orgs matches",
autzHumanReadableDesc, desc, object.getOid());
return false;
}
}
// roleRelation
if (specRoleRelation != null) {
boolean match = false;
for (ObjectReferenceType subjectRoleMembershipRef: principal.getUser().getRoleMembershipRef()) {
if (matchesRoleRelation(object, subjectRoleMembershipRef, specRoleRelation, autzHumanReadableDesc, desc)) {
LOGGER.trace(" {} applicable for {}, object OID {} because subject role relation {} matches",
autzHumanReadableDesc, desc, object.getOid(), subjectRoleMembershipRef.getOid());
match = true;
break;
}
}
if (!match) {
LOGGER.trace(" {} not applicable for {}, object OID {} because none of the subject roles matches",
autzHumanReadableDesc, desc, object.getOid());
return false;
}
}
if (objectSelector instanceof OwnedObjectSelectorType) {
// Owner
SubjectedObjectSelectorType ownerSpec = ((OwnedObjectSelectorType)objectSelector).getOwner();
if (ownerSpec != null) {
if (ownerResolver == null) {
ownerResolver = userProfileService;
if (ownerResolver == null) {
LOGGER.trace(" {}: owner object spec not applicable for {}, object OID {} because there is no owner resolver",
autzHumanReadableDesc, desc, object.getOid());
return false;
}
}
PrismObject<? extends FocusType> owner = ownerResolver.resolveOwner(object);
if (owner == null) {
LOGGER.trace(" {}: owner object spec not applicable for {}, object OID {} because it has no owner",
autzHumanReadableDesc, desc, object.getOid());
return false;
}
boolean ownerApplicable = isApplicable(ownerSpec, owner, principal, ownerResolver, "owner of "+desc, autzHumanReadableDesc);
if (!ownerApplicable) {
LOGGER.trace(" {}: owner object spec not applicable for {}, object OID {} because owner does not match (owner={})",
autzHumanReadableDesc, desc, object.getOid(), owner);
return false;
}
}
// Delegator
SubjectedObjectSelectorType delegatorSpec = ((OwnedObjectSelectorType)objectSelector).getDelegator();
if (delegatorSpec != null) {
if (!isSelf(delegatorSpec)) {
throw new SchemaException("Unsupported non-self delegator clause");
}
if (!object.canRepresent(UserType.class)) {
LOGGER.trace(" {}: delegator object spec not applicable for {}, because the object is not user",
autzHumanReadableDesc, desc);
return false;
}
boolean found = false;
for (ObjectReferenceType objectDelegatedRef: ((UserType)object.asObjectable()).getDelegatedRef()) {
if (principal.getOid().equals(objectDelegatedRef.getOid())) {
found = true;
break;
}
}
if (!found) {
if (BooleanUtils.isTrue(delegatorSpec.isAllowInactive())) {
for (AssignmentType objectAssignment: ((UserType)object.asObjectable()).getAssignment()) {
ObjectReferenceType objectAssignmentTargetRef = objectAssignment.getTargetRef();
if (objectAssignmentTargetRef == null) {
continue;
}
if (principal.getOid().equals(objectAssignmentTargetRef.getOid())) {
if (QNameUtil.match(SchemaConstants.ORG_DEPUTY, objectAssignmentTargetRef.getRelation())) {
found = true;
break;
}
}
}
}
if (!found) {
LOGGER.trace(" {}: delegator object spec not applicable for {}, object OID {} because delegator does not match",
autzHumanReadableDesc, desc, object.getOid());
return false;
}
}
}
}
LOGGER.trace(" {} applicable for {} (filter)", autzHumanReadableDesc, desc);
return true;
}
private boolean isSelf(SubjectedObjectSelectorType spec) throws SchemaException {
List<SpecialObjectSpecificationType> specSpecial = spec.getSpecial();
if (specSpecial != null && !specSpecial.isEmpty()) {
if (spec.getFilter() != null || spec.getOrgRef() != null || spec.getOrgRelation() != null || spec.getRoleRelation() != null) {
return false;
}
for (SpecialObjectSpecificationType special: specSpecial) {
if (special == SpecialObjectSpecificationType.SELF) {
return true;
} else {
throw new SchemaException("Unsupported special object specification specified in authorization: "+special);
}
}
}
return false;
}
private <O extends ObjectType> boolean matchesOrgRelation(PrismObject<O> object, ObjectReferenceType subjectParentOrgRef,
OrgRelationObjectSpecificationType specOrgRelation, String autzHumanReadableDesc, String desc) throws SchemaException {
if (!MiscSchemaUtil.compareRelation(specOrgRelation.getSubjectRelation(), subjectParentOrgRef.getRelation())) {
return false;
}
if (BooleanUtils.isTrue(specOrgRelation.isIncludeReferenceOrg()) && subjectParentOrgRef.getOid().equals(object.getOid())) {
return true;
}
if (specOrgRelation.getScope() == null) {
return repositoryService.isDescendant(object, subjectParentOrgRef.getOid());
}
switch (specOrgRelation.getScope()) {
case ALL_DESCENDANTS:
return repositoryService.isDescendant(object, subjectParentOrgRef.getOid());
case DIRECT_DESCENDANTS:
return hasParentOrgRef(object, subjectParentOrgRef.getOid());
case ALL_ANCESTORS:
return repositoryService.isAncestor(object, subjectParentOrgRef.getOid());
default:
throw new UnsupportedOperationException("Unknown orgRelation scope "+specOrgRelation.getScope());
}
}
private <O extends ObjectType> boolean hasParentOrgRef(PrismObject<O> object, String oid) {
List<ObjectReferenceType> objParentOrgRefs = object.asObjectable().getParentOrgRef();
for (ObjectReferenceType objParentOrgRef: objParentOrgRefs) {
if (oid.equals(objParentOrgRef.getOid())) {
return true;
}
}
return false;
}
private <O extends ObjectType> boolean matchesRoleRelation(PrismObject<O> object, ObjectReferenceType subjectRoleMembershipRef,
RoleRelationObjectSpecificationType specRoleRelation, String autzHumanReadableDesc, String desc) throws SchemaException {
if (!MiscSchemaUtil.compareRelation(specRoleRelation.getSubjectRelation(), subjectRoleMembershipRef.getRelation())) {
return false;
}
if (BooleanUtils.isTrue(specRoleRelation.isIncludeReferenceRole()) && subjectRoleMembershipRef.getOid().equals(object.getOid())) {
return true;
}
if (!BooleanUtils.isFalse(specRoleRelation.isIncludeMembers())) {
if (!object.canRepresent(FocusType.class)) {
return false;
}
for (ObjectReferenceType objectRoleMembershipRef: ((FocusType)object.asObjectable()).getRoleMembershipRef()) {
if (!subjectRoleMembershipRef.getOid().equals(objectRoleMembershipRef.getOid())) {
continue;
}
if (!MiscSchemaUtil.compareRelation(specRoleRelation.getObjectRelation(), objectRoleMembershipRef.getRelation())) {
continue;
}
return true;
}
}
return false;
}
private <O extends ObjectType> boolean isApplicableItem(Authorization autz,
PrismObject<O> object, ObjectDelta<O> delta) throws SchemaException {
List<ItemPathType> itemPaths = autz.getItem();
if (itemPaths == null || itemPaths.isEmpty()) {
// No item constraints. Applicable for all items.
LOGGER.trace(" items empty");
return true;
}
for (ItemPathType itemPathType: itemPaths) {
ItemPath itemPath = itemPathType.getItemPath();
if (delta == null) {
if (object != null) {
if (object.containsItem(itemPath, false)) {
LOGGER.trace(" applicable object item "+itemPath);
return true;
}
}
} else {
ItemDelta<?,?> itemDelta = delta.findItemDelta(itemPath);
if (itemDelta != null && !itemDelta.isEmpty()) {
LOGGER.trace(" applicable delta item "+itemPath);
return true;
}
}
}
LOGGER.trace(" no applicable item");
return false;
}
private Collection<ItemPath> getItems(Authorization autz) {
List<ItemPathType> itemPaths = autz.getItem();
Collection<ItemPath> items = new ArrayList<>(itemPaths.size());
for (ItemPathType itemPathType: itemPaths) {
ItemPath itemPath = itemPathType.getItemPath();
items.add(itemPath);
}
return items;
}
/**
* Spring security method. It is practically applicable only for simple cases.
*/
@Override
public void decide(Authentication authentication, Object object,
Collection<ConfigAttribute> configAttributes) throws AccessDeniedException,
InsufficientAuthenticationException {
if (object instanceof MethodInvocation) {
MethodInvocation methodInvocation = (MethodInvocation)object;
// TODO
} else if (object instanceof FilterInvocation) {
FilterInvocation filterInvocation = (FilterInvocation)object;
// TODO
} else {
SecurityUtil.logSecurityDeny(object, ": Unknown type of secure object");
throw new IllegalArgumentException("Unknown type of secure object");
}
Object principalObject = authentication.getPrincipal();
if (!(principalObject instanceof MidPointPrincipal)) {
if (authentication.getPrincipal() instanceof String && "anonymousUser".equals(principalObject)){
SecurityUtil.logSecurityDeny(object, ": Not logged in");
throw new InsufficientAuthenticationException("Not logged in.");
}
throw new IllegalArgumentException("Expected that spring security principal will be of type "+
MidPointPrincipal.class.getName()+" but it was "+principalObject.getClass());
}
Collection<String> configActions = SecurityUtil.getActions(configAttributes);
for(String configAction: configActions) {
boolean isAuthorized;
try {
isAuthorized = isAuthorized(configAction, null, null, null, null, null);
} catch (SchemaException e) {
throw new SystemException(e.getMessage(), e);
}
if (isAuthorized) {
return;
}
}
SecurityUtil.logSecurityDeny(object, ": Not authorized", null, configActions);
// Sparse exception method by purpose. We do not want to expose details to attacker.
// Better message is logged.
throw new AccessDeniedException("Not authorized");
}
@Override
public boolean supports(ConfigAttribute attribute) {
if (attribute instanceof SecurityConfig) {
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;
}
}
private String getQuotedUsername(Authentication authentication) {
String username = "(none)";
Object principal = authentication.getPrincipal();
if (principal != null) {
if (principal instanceof MidPointPrincipal) {
username = "'"+((MidPointPrincipal)principal).getUsername()+"'";
} else {
username = "(unknown:"+principal+")";
}
}
return username;
}
private String getQuotedUsername(MidPointPrincipal principal) {
if (principal == null) {
return "(none)";
}
return "'"+ principal.getUsername()+"'";
}
private MidPointPrincipal getMidPointPrincipal() {
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if (authentication == null) {
LOGGER.warn("No authentication");
return null;
}
Object principal = authentication.getPrincipal();
if (principal == null) {
LOGGER.warn("Null principal");
return null;
}
if (!(principal instanceof MidPointPrincipal)) {
if (authentication.getPrincipal() instanceof String && "anonymousUser".equals(principal)){
return null;
}
LOGGER.warn("Unknown principal type {}", principal.getClass());
return null;
}
return (MidPointPrincipal)principal;
}
private Collection<Authorization> getAuthorities(MidPointPrincipal principal) {
if (principal == null) {
// Anonymous access, possibly with elevated privileges
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
Collection<Authorization> authorizations = new ArrayList<>();
if (authentication != null) {
for (GrantedAuthority authority: authentication.getAuthorities()) {
if (authority instanceof Authorization) {
authorizations.add((Authorization)authority);
}
}
}
return authorizations;
} else {
return principal.getAuthorities();
}
}
@Override
public <O extends ObjectType> ObjectSecurityConstraints compileSecurityConstraints(PrismObject<O> object, OwnerResolver ownerResolver) throws SchemaException {
MidPointPrincipal principal = getMidPointPrincipal();
if (object == null) {
throw new IllegalArgumentException("Cannot compile security constraints of null object");
}
LOGGER.trace("AUTZ: evaluating security constraints principal={}, object={}", principal, object);
ObjectSecurityConstraintsImpl objectSecurityConstraints = new ObjectSecurityConstraintsImpl();
Collection<Authorization> authorities = getAuthorities(principal);
if (authorities != null) {
for (Authorization autz: authorities) {
String autzHumanReadableDesc = autz.getHumanReadableDesc();
LOGGER.trace("Evaluating {}", autzHumanReadableDesc);
// skip action applicability evaluation. We are interested in all actions
// object
if (isApplicable(autz.getObject(), object, principal, ownerResolver, "object", autzHumanReadableDesc)) {
LOGGER.trace(" {} applicable for object {} (continuing evaluation)", autzHumanReadableDesc, object);
} else {
LOGGER.trace(" {} not applicable for object {}, none of the object specifications match (breaking evaluation)",
autzHumanReadableDesc, object);
continue;
}
// skip target applicability evaluation. We do not have a target here
List<String> actions = autz.getAction();
AuthorizationPhaseType phase = autz.getPhase();
AuthorizationDecisionType decision = autz.getDecision();
if (decision == null || decision == AuthorizationDecisionType.ALLOW) {
Collection<ItemPath> items = getItems(autz);
if (items == null || items.isEmpty()) {
applyDecision(objectSecurityConstraints.getActionDecisionMap(), actions, phase, AuthorizationDecisionType.ALLOW);
} else {
for (ItemPath item: items) {
applyItemDecision(objectSecurityConstraints.getItemConstraintMap(), item, actions, phase, AuthorizationDecisionType.ALLOW);
}
}
} else {
Collection<ItemPath> items = getItems(autz);
if (items == null || items.isEmpty()) {
applyDecision(objectSecurityConstraints.getActionDecisionMap(), actions, phase, AuthorizationDecisionType.DENY);
} else {
for (ItemPath item: items) {
applyItemDecision(objectSecurityConstraints.getItemConstraintMap(), item, actions, phase, AuthorizationDecisionType.DENY);
}
}
}
}
}
if (LOGGER.isTraceEnabled()) {
LOGGER.trace("AUTZ: evaluated security constraints principal={}, object={}:\n{}",
principal, object, objectSecurityConstraints.debugDump());
}
return objectSecurityConstraints;
}
private void applyItemDecision(Map<ItemPath, ItemSecurityConstraintsImpl> itemConstraintMap, ItemPath item,
List<String> actions, AuthorizationPhaseType phase, AuthorizationDecisionType decision) {
ItemSecurityConstraintsImpl entry = itemConstraintMap.computeIfAbsent(item, k -> new ItemSecurityConstraintsImpl());
applyDecision(entry.getActionDecisionMap(), actions, phase, decision);
}
private void applyDecision(Map<String, PhaseDecisionImpl> actionDecisionMap,
List<String> actions, AuthorizationPhaseType phase, AuthorizationDecisionType decision) {
for (String action: actions) {
if (phase == null) {
applyDecisionRequest(actionDecisionMap, action, decision);
applyDecisionExecution(actionDecisionMap, action, decision);
} else if (phase == AuthorizationPhaseType.REQUEST){
applyDecisionRequest(actionDecisionMap, action, decision);
} else if (phase == AuthorizationPhaseType.EXECUTION) {
applyDecisionExecution(actionDecisionMap, action, decision);
} else {
throw new IllegalArgumentException("Unknown phase "+phase);
}
}
}
private void applyDecisionRequest(Map<String, PhaseDecisionImpl> actionDecisionMap,
String action, AuthorizationDecisionType decision) {
PhaseDecisionImpl phaseDecision = actionDecisionMap.get(action);
if (phaseDecision == null) {
phaseDecision = new PhaseDecisionImpl();
phaseDecision.setRequestDecision(decision);
actionDecisionMap.put(action, phaseDecision);
} else if (phaseDecision.getRequestDecision() == null ||
// deny overrides
(phaseDecision.getRequestDecision() == AuthorizationDecisionType.ALLOW && decision == AuthorizationDecisionType.DENY)) {
phaseDecision.setRequestDecision(decision);
}
}
private void applyDecisionExecution(Map<String, PhaseDecisionImpl> actionDecisionMap,
String action, AuthorizationDecisionType decision) {
PhaseDecisionImpl phaseDecision = actionDecisionMap.get(action);
if (phaseDecision == null) {
phaseDecision = new PhaseDecisionImpl();
phaseDecision.setExecDecision(decision);
actionDecisionMap.put(action, phaseDecision);
} else if (phaseDecision.getExecDecision() == null ||
// deny overrides
(phaseDecision.getExecDecision() == AuthorizationDecisionType.ALLOW && decision == AuthorizationDecisionType.DENY)) {
phaseDecision.setExecDecision(decision);
}
}
@Override
public <T extends ObjectType, O extends ObjectType> ObjectFilter preProcessObjectFilter(String operationUrl, AuthorizationPhaseType phase,
Class<T> searchResultType, PrismObject<O> object, ObjectFilter origFilter) throws SchemaException {
MidPointPrincipal principal = getMidPointPrincipal();
LOGGER.trace("AUTZ: evaluating search pre-process principal={}, searchResultType={}, object={}: orig filter {}",
principal, searchResultType, object, origFilter);
if (origFilter == null) {
origFilter = AllFilter.createAll();
}
ObjectFilter securityFilter;
if (phase != null) {
securityFilter = preProcessObjectFilterInternal(principal, operationUrl, phase,
true, searchResultType, object, true, origFilter, "search pre-process");
} else {
ObjectFilter filterBoth = preProcessObjectFilterInternal(principal, operationUrl, null,
false, searchResultType, object, true, origFilter, "search pre-process");
ObjectFilter filterRequest = preProcessObjectFilterInternal(principal, operationUrl, AuthorizationPhaseType.REQUEST,
false, searchResultType, object, true, origFilter, "search pre-process");
ObjectFilter filterExecution = preProcessObjectFilterInternal(principal, operationUrl, AuthorizationPhaseType.EXECUTION,
false, searchResultType, object, true, origFilter, "search pre-process");
securityFilter = ObjectQueryUtil.filterOr(filterBoth, ObjectQueryUtil.filterAnd(filterRequest, filterExecution));
}
ObjectFilter finalFilter = ObjectQueryUtil.filterAnd(origFilter, securityFilter);
LOGGER.trace("AUTZ: evaluated search pre-process principal={}, objectType={}: {}", principal, searchResultType, finalFilter);
if (finalFilter instanceof AllFilter) {
// compatibility
return null;
}
return finalFilter;
}
@Override
public <T extends ObjectType, O extends ObjectType> boolean canSearch(String operationUrl,
AuthorizationPhaseType phase, Class<T> searchResultType, PrismObject<O> object, boolean includeSpecial, ObjectFilter origFilter)
throws SchemaException {
MidPointPrincipal principal = getMidPointPrincipal();
LOGGER.trace("AUTZ: evaluating search permission principal={}, searchResultType={}, object={}: filter {}",
principal, searchResultType, object, origFilter);
if (origFilter == null) {
return true;
}
ObjectFilter securityFilter;
if (phase != null) {
securityFilter = preProcessObjectFilterInternal(principal, operationUrl, phase,
true, searchResultType, object, includeSpecial, origFilter, "search permission");
} else {
ObjectFilter filterBoth = preProcessObjectFilterInternal(principal, operationUrl, null,
false, searchResultType, object, includeSpecial, origFilter, "search permission");
ObjectFilter filterRequest = preProcessObjectFilterInternal(principal, operationUrl, AuthorizationPhaseType.REQUEST,
false, searchResultType, object, includeSpecial, origFilter, "search permission");
ObjectFilter filterExecution = preProcessObjectFilterInternal(principal, operationUrl, AuthorizationPhaseType.EXECUTION,
false, searchResultType, object, includeSpecial, origFilter, "search permission");
securityFilter = ObjectQueryUtil.filterOr(filterBoth, ObjectQueryUtil.filterAnd(filterRequest, filterExecution));
}
ObjectFilter finalFilter = ObjectQueryUtil.filterAnd(origFilter, securityFilter);
finalFilter = ObjectQueryUtil.simplify(finalFilter);
boolean decision = !(finalFilter instanceof NoneFilter);
LOGGER.trace("AUTZ: evaluated search permission principal={}, objectType={}, evulated from filter: {}: decision={}", principal, searchResultType, finalFilter, decision);
return decision;
}
/**
* @return additional security filter. This filter is supposed to be added (operation "AND") to the original filter.
*/
private <T extends ObjectType, O extends ObjectType> ObjectFilter preProcessObjectFilterInternal(MidPointPrincipal principal, String operationUrl,
AuthorizationPhaseType phase, boolean includeNullPhase,
Class<T> objectType, PrismObject<O> object, boolean includeSpecial, ObjectFilter origFilter, String desc) throws SchemaException {
Collection<Authorization> authorities = getAuthorities(principal);
ObjectFilter securityFilterAllow = null;
ObjectFilter securityFilterDeny = null;
QueryItemsSpec queryItemsSpec = new QueryItemsSpec();
queryItemsSpec.addRequiredItems(origFilter); // MID-3916
if (LOGGER.isTraceEnabled()) {
LOGGER.trace(" Initial query items spec {}", queryItemsSpec.shortDump());
}
boolean hasAllowAll = false;
if (authorities != null) {
for (GrantedAuthority authority: authorities) {
if (authority instanceof Authorization) {
Authorization autz = (Authorization)authority;
String autzHumanReadableDesc = autz.getHumanReadableDesc();
LOGGER.trace("Evaluating {}", autzHumanReadableDesc);
// action
if (!autz.getAction().contains(operationUrl) && !autz.getAction().contains(AuthorizationConstants.AUTZ_ALL_URL)) {
LOGGER.trace(" Authorization not applicable for operation {}", operationUrl);
continue;
}
// phase