Github user koushik-das commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1489#discussion_r60384825
--- Diff:
plugins/acl/dynamic-role-based/src/org/apache/cloudstack/acl/DynamicRoleBasedAPIAccessChecker.java
---
@@ -0,0 +1,166 @@
+// 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.cloudstack.acl;
+
+import com.cloud.exception.PermissionDeniedException;
+import com.cloud.user.Account;
+import com.cloud.user.AccountService;
+import com.cloud.user.User;
+import com.cloud.utils.component.AdapterBase;
+import com.cloud.utils.component.PluggableService;
+import com.google.common.base.Strings;
+import org.apache.cloudstack.api.APICommand;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
+import javax.naming.ConfigurationException;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+@Local(value = APIChecker.class)
+public class DynamicRoleBasedAPIAccessChecker extends AdapterBase
implements APIChecker {
+
+ @Inject
+ private AccountService accountService;
+ @Inject
+ private RoleService roleService;
+
+ private List<PluggableService> services;
+ private Map<RoleType, Set<String>> annotationRoleBasedApisMap = new
HashMap<>();
+
+ protected DynamicRoleBasedAPIAccessChecker() {
+ super();
+ for (RoleType roleType : RoleType.values()) {
+ annotationRoleBasedApisMap.put(roleType, new
HashSet<String>());
+ }
+ }
+
+ private void denyApiAccess(final String commandName) throws
PermissionDeniedException {
+ throw new PermissionDeniedException("The API does not exist or is
blacklisted for the account's role. " +
+ "The account with is not allowed to request the api: " +
commandName);
+ }
+
+ private boolean checkPermission(final List <? extends RolePermission>
permissions, final RolePermission.Permission permissionToCheck, final String
commandName) {
+ if (permissions == null) {
+ return false;
+ }
+ for (final RolePermission permission : permissions) {
+ if (permission.getPermission() != permissionToCheck) {
+ continue;
+ }
+ final String rule = permission.getRule();
+ if (rule.contains("*")) {
+ if (commandName.matches(rule.replace("*", "\\w*"))) {
+ return true;
+ }
+ } else {
+ if (commandName.equals(rule)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+
+ public boolean isDisabled() {
+ return !roleService.isEnabled();
+ }
+
+ @Override
+ public boolean checkAccess(User user, String commandName) throws
PermissionDeniedException {
+ if (isDisabled()) {
+ return true;
+ }
+ Account account = accountService.getAccount(user.getAccountId());
+ if (account == null) {
+ throw new PermissionDeniedException("The account id=" +
user.getAccountId() + "for user id=" + user.getId() + "is null");
+ }
+
+ final Role accountRole = roleService.findRole(account.getRoleId());
+ if (accountRole == null || accountRole.getId() < 1L) {
+ denyApiAccess(commandName);
+ }
+
+ // Allow all APIs for root admins
+ if (accountRole.getRoleType() == RoleType.Admin &&
accountRole.getId() == RoleType.Admin.getId()) {
+ return true;
+ }
+
+ final List<RolePermission> rolePermissions =
roleService.findAllPermissionsBy(accountRole.getId());
+
+ // Check for allow rules
+ if (checkPermission(rolePermissions,
RolePermission.Permission.ALLOW, commandName)) {
--- End diff --
If default is deny then there is no need for 'DENY' based permissions. In
that case you don't need to store allow/deny in DB as all permissions will be
allow only. Let me know if this is not correct.
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