source: branches/HiveProjectManagement/HeuristicLab.Services.Hive/3.3/Manager/AuthorizationManager.cs @ 15715

Last change on this file since 15715 was 15715, checked in by jzenisek, 20 months ago

#2839 improved permission checking of HiveService methods

File size: 8.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Security;
24using HeuristicLab.Services.Access;
25using HeuristicLab.Services.Hive.DataAccess;
26using HeuristicLab.Services.Hive.DataAccess.Interfaces;
27using DA = HeuristicLab.Services.Hive.DataAccess;
28using DT = HeuristicLab.Services.Hive.DataTransfer;
29using System.Collections.Generic;
30using System.Linq;
31
32namespace HeuristicLab.Services.Hive {
33  public class AuthorizationManager : IAuthorizationManager {
34
35    private const string NOT_AUTHORIZED_USERRESOURCE = "Current user is not authorized to access the requested resource";
36    private const string NOT_AUTHORIZED_USERPROJECT = "Current user is not authorized to access the requested project";
37    private const string NOT_AUTHORIZED_USERJOB = "Current user is not authorized to access the requested job";
38    private const string NOT_AUTHORIZED_PROJECTRESOURCE = "Selected project is not authorized to access the requested resource";
39    private const string USER_NOT_IDENTIFIED = "User could not be identified";
40    private const string TASK_NOT_EXISTENT = "Queried task could not be found";
41
42    private IPersistenceManager PersistenceManager {
43      get { return ServiceLocator.Instance.PersistenceManager; }
44    }
45
46    private IUserManager UserManager {
47      get { return ServiceLocator.Instance.UserManager; }
48    }
49
50    private IRoleVerifier RoleVerifier {
51      get { return ServiceLocator.Instance.RoleVerifier; }
52    }
53
54    public void Authorize(Guid userId) {
55      if (userId != ServiceLocator.Instance.UserManager.CurrentUserId)
56        throw new SecurityException(NOT_AUTHORIZED_USERRESOURCE);
57    }
58
59    public void AuthorizeForTask(Guid taskId, DT.Permission requiredPermission) {
60      if (ServiceLocator.Instance.RoleVerifier.IsInRole(HiveRoles.Slave)) return; // slave-users can access all tasks
61      var pm = PersistenceManager;
62      var taskDao = pm.TaskDao;
63      pm.UseTransaction(() => {
64        var task = taskDao.GetById(taskId);
65        if (task == null) throw new SecurityException(TASK_NOT_EXISTENT);
66        AuthorizeJob(pm, task.JobId, requiredPermission);
67      });
68    }
69
70    public void AuthorizeForJob(Guid jobId, DT.Permission requiredPermission) {
71      var pm = PersistenceManager;
72      pm.UseTransaction(() => {
73        AuthorizeJob(pm, jobId, requiredPermission);
74      });
75    }
76
77    // authorize if user is admin or resource owner
78    public void AuthorizeForResourceAdministration(Guid resourceId) {
79      var currentUserId = UserManager.CurrentUserId;
80      var pm = PersistenceManager;
81      var resourceDao = pm.ResourceDao;
82      pm.UseTransaction(() => {
83        var resource = resourceDao.GetById(resourceId);
84        if (resource == null) throw new SecurityException(NOT_AUTHORIZED_USERRESOURCE);
85
86        if (resource.OwnerUserId != currentUserId
87            && !RoleVerifier.IsInRole(HiveRoles.Administrator)) {
88          throw new SecurityException(NOT_AUTHORIZED_USERRESOURCE);
89        }
90      });
91    }
92
93    // authorize if user is admin, project owner or owner of a parent project
94    public void AuthorizeForProjectAdministration(Guid projectId) {
95      if (projectId == null) return;
96      var currentUserId = UserManager.CurrentUserId;
97      var pm = PersistenceManager;
98      var projectDao = pm.ProjectDao;
99      pm.UseTransaction(() => {
100        var projectBranch = projectDao.GetCurrentAndParentProjectsById(projectId).ToList();
101        if(!projectBranch.Select(x => x.OwnerUserId).Contains(currentUserId)
102            && !RoleVerifier.IsInRole(HiveRoles.Administrator)) {
103          throw new SecurityException(NOT_AUTHORIZED_USERPROJECT);
104        }
105      });
106    }
107
108    // authorize if user is admin, or owner of a parent project, for which the resources are assigned to
109    public void AuthorizeForProjectResourceAdministration(Guid projectId, IEnumerable<Guid> resourceIds) {
110      if (projectId == null) return;
111      var currentUserId = UserManager.CurrentUserId;
112      var pm = PersistenceManager;
113      var projectDao = pm.ProjectDao;
114      var resourceDao = pm.ResourceDao;
115      var assignedProjectResourceDao = pm.AssignedProjectResourceDao;
116      pm.UseTransaction(() => {
117        // check if project exists (not necessary)
118        var project = projectDao.GetById(projectId);
119        if (project == null) throw new SecurityException(NOT_AUTHORIZED_USERRESOURCE);
120
121        // check if resourceIds exist
122        if (resourceIds != null && resourceIds.Any() && !resourceDao.CheckExistence(resourceIds))
123          throw new SecurityException(NOT_AUTHORIZED_USERRESOURCE);
124
125        // check if user is admin
126        if (RoleVerifier.IsInRole(HiveRoles.Administrator)) return;
127
128        // check if user is owner of a parent project
129        var projectBranch = projectDao.GetParentProjectsById(projectId).ToList();
130        if (!projectBranch.Select(x => x.OwnerUserId).Contains(currentUserId)
131            && !RoleVerifier.IsInRole(HiveRoles.Administrator)) {
132          throw new SecurityException(NOT_AUTHORIZED_USERPROJECT);
133        }
134
135        // check if the all argument resourceIds are among the assigned resources of the owned projects
136        var grantedResourceIds = assignedProjectResourceDao.GetAllGrantedResourceIdsOfOwnedParentProjects(projectId, currentUserId).ToList();
137        if(resourceIds.Except(grantedResourceIds).Any()) {
138          throw new SecurityException(NOT_AUTHORIZED_USERRESOURCE);
139        }
140      });
141    }
142
143    // Check if a project is authorized to use a list of resources
144    public void AuthorizeProjectForResourcesUse(Guid projectId, IEnumerable<Guid> resourceIds) {
145      if (projectId == null || resourceIds == null || !resourceIds.Any()) return;
146      var pm = PersistenceManager;
147      var assignedProjectResourceDao = pm.AssignedProjectResourceDao;
148      if (!assignedProjectResourceDao.CheckProjectGrantedForResources(projectId, resourceIds))
149        throw new SecurityException(NOT_AUTHORIZED_PROJECTRESOURCE);
150    }
151
152    // Check if current user is authorized to use an explicit project (e.g. in order to add a job)
153    // note: administrators and project owner are NOT automatically granted
154    public void AuthorizeUserForProjectUse(Guid userId, Guid projectId) {
155      if(userId == null || userId == Guid.Empty) {
156        throw new SecurityException(USER_NOT_IDENTIFIED);
157      }
158      if(projectId == null) return;
159
160      var pm = PersistenceManager;
161      // collect current and group membership Ids
162      var userAndGroupIds = new List<Guid>() { userId };
163      userAndGroupIds.AddRange(UserManager.GetUserGroupIdsOfUser(userId));
164      // perform the actual check
165      var projectPermissionDao = pm.ProjectPermissionDao;
166      if (!projectPermissionDao.CheckUserGrantedForProject(projectId, userAndGroupIds)) {
167        throw new SecurityException(NOT_AUTHORIZED_USERPROJECT);
168      }
169    }
170
171    private DA.Permission GetPermissionForJob(IPersistenceManager pm, Guid jobId, Guid userId) {
172      var jobDao = pm.JobDao;
173      var jobPermissionDao = pm.JobPermissionDao;
174      var job = jobDao.GetById(jobId);
175      if (job == null) return DA.Permission.NotAllowed;
176      if (job.OwnerUserId == userId) return DA.Permission.Full;
177      var jobPermission = jobPermissionDao.GetByJobAndUserId(jobId, userId);
178      if (jobPermission == null) return DA.Permission.NotAllowed;
179      return jobPermission.Permission;
180    }
181
182    private void AuthorizeJob(IPersistenceManager pm, Guid jobId, DT.Permission requiredPermission) {
183      var currentUserId = UserManager.CurrentUserId;
184      var requiredPermissionEntity = requiredPermission.ToEntity();
185      DA.Permission permission = GetPermissionForJob(pm, jobId, currentUserId);
186      if (permission == Permission.NotAllowed
187          || ((permission != requiredPermissionEntity) && requiredPermissionEntity == Permission.Full)) {
188        throw new SecurityException(NOT_AUTHORIZED_USERJOB);
189      }
190    }
191  }
192}
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