useradmin/AggregatingUserAdmin.java

   1 package org.argeo.osgi.useradmin;
   2
   3 import static org.argeo.osgi.useradmin.DirectoryUserAdmin.toLdapName;
   4
   5 import java.util.ArrayList;
   6 import java.util.Arrays;
   7 import java.util.HashMap;
   8 import java.util.HashSet;
   9 import java.util.Hashtable;
  10 import java.util.List;
  11 import java.util.Map;
  12 import java.util.Objects;
  13 import java.util.Set;
  14 import java.util.TreeSet;
  15
  16 import javax.naming.InvalidNameException;
  17 import javax.naming.ldap.LdapName;
  18
  19 import org.argeo.util.directory.DirectoryConf;
  20 import org.osgi.framework.InvalidSyntaxException;
  21 import org.osgi.service.useradmin.Authorization;
  22 import org.osgi.service.useradmin.Group;
  23 import org.osgi.service.useradmin.Role;
  24 import org.osgi.service.useradmin.User;
  25 import org.osgi.service.useradmin.UserAdmin;
  26
  27 /**
  28  * Aggregates multiple {@link UserDirectory} and integrates them with system
  29  * roles.
  30  */
  31 public class AggregatingUserAdmin implements UserAdmin {
  32         private final LdapName systemRolesBaseDn;
  33         private final LdapName tokensBaseDn;
  34
  35         // DAOs
  36         private DirectoryUserAdmin systemRoles = null;
  37         private DirectoryUserAdmin tokens = null;
  38         private Map<LdapName, DirectoryUserAdmin> businessRoles = new HashMap<LdapName, DirectoryUserAdmin>();
  39
  40         // TODO rather use an empty constructor and an init method
  41         public AggregatingUserAdmin(String systemRolesBaseDn, String tokensBaseDn) {
  42                 try {
  43                         this.systemRolesBaseDn = new LdapName(systemRolesBaseDn);
  44                         if (tokensBaseDn != null)
  45                                 this.tokensBaseDn = new LdapName(tokensBaseDn);
  46                         else
  47                                 this.tokensBaseDn = null;
  48                 } catch (InvalidNameException e) {
  49                         throw new IllegalStateException("Cannot initialize " + AggregatingUserAdmin.class, e);
  50                 }
  51         }
  52
  53         @Override
  54         public Role createRole(String name, int type) {
  55                 return findUserAdmin(name).createRole(name, type);
  56         }
  57
  58         @Override
  59         public boolean removeRole(String name) {
  60                 boolean actuallyDeleted = findUserAdmin(name).removeRole(name);
  61                 systemRoles.removeRole(name);
  62                 return actuallyDeleted;
  63         }
  64
  65         @Override
  66         public Role getRole(String name) {
  67                 return findUserAdmin(name).getRole(name);
  68         }
  69
  70         @Override
  71         public Role[] getRoles(String filter) throws InvalidSyntaxException {
  72                 List<Role> res = new ArrayList<Role>();
  73                 for (UserAdmin userAdmin : businessRoles.values()) {
  74                         res.addAll(Arrays.asList(userAdmin.getRoles(filter)));
  75                 }
  76                 res.addAll(Arrays.asList(systemRoles.getRoles(filter)));
  77                 return res.toArray(new Role[res.size()]);
  78         }
  79
  80         @Override
  81         public User getUser(String key, String value) {
  82                 List<User> res = new ArrayList<User>();
  83                 for (UserAdmin userAdmin : businessRoles.values()) {
  84                         User u = userAdmin.getUser(key, value);
  85                         if (u != null)
  86                                 res.add(u);
  87                 }
  88                 // Note: node roles cannot contain users, so it is not searched
  89                 return res.size() == 1 ? res.get(0) : null;
  90         }
  91
  92         /** Builds an authorisation by scanning all referentials. */
  93         @Override
  94         public Authorization getAuthorization(User user) {
  95                 if (user == null) {// anonymous
  96                         return systemRoles.getAuthorization(null);
  97                 }
  98                 DirectoryUserAdmin userReferentialOfThisUser = findUserAdmin(user.getName());
  99                 Authorization rawAuthorization = userReferentialOfThisUser.getAuthorization(user);
 100                 User retrievedUser = (User) userReferentialOfThisUser.getRole(user.getName());
 101                 String usernameToUse;
 102                 String displayNameToUse;
 103                 if (user instanceof Group) {
 104                         // TODO check whether this is still working
 105                         String ownerDn = TokenUtils.userDn((Group) user);
 106                         if (ownerDn != null) {// tokens
 107                                 UserAdmin ownerUserAdmin = findUserAdmin(ownerDn);
 108                                 User ownerUser = (User) ownerUserAdmin.getRole(ownerDn);
 109                                 usernameToUse = ownerDn;
 110                                 displayNameToUse = LdifAuthorization.extractDisplayName(ownerUser);
 111                         } else {
 112                                 usernameToUse = rawAuthorization.getName();
 113                                 displayNameToUse = rawAuthorization.toString();
 114                         }
 115                 } else {// regular users
 116                         usernameToUse = rawAuthorization.getName();
 117                         displayNameToUse = rawAuthorization.toString();
 118                 }
 119
 120                 // gather roles from other referentials
 121                 List<String> rawRoles = Arrays.asList(rawAuthorization.getRoles());
 122                 List<String> allRoles = new ArrayList<>(rawRoles);
 123                 for (LdapName otherBaseDn : businessRoles.keySet()) {
 124                         if (otherBaseDn.equals(userReferentialOfThisUser.getBaseDn()))
 125                                 continue;
 126                         DirectoryUserAdmin otherUserAdmin = userAdminToUse(user, businessRoles.get(otherBaseDn));
 127                         if (otherUserAdmin == null)
 128                                 continue;
 129                         for (String roleStr : rawRoles) {
 130                                 User role = (User) findUserAdmin(roleStr).getRole(roleStr);
 131                                 Authorization auth = otherUserAdmin.getAuthorization(role);
 132                                 allRoles.addAll(Arrays.asList(auth.getRoles()));
 133                         }
 134
 135                 }
 136
 137                 // integrate system roles
 138                 final DirectoryUserAdmin userAdminToUse = userAdminToUse(retrievedUser, userReferentialOfThisUser);
 139                 Objects.requireNonNull(userAdminToUse);
 140
 141                 try {
 142                         Set<String> sysRoles = new HashSet<String>();
 143                         for (String role : rawAuthorization.getRoles()) {
 144                                 User userOrGroup = (User) userAdminToUse.getRole(role);
 145                                 Authorization auth = systemRoles.getAuthorization(userOrGroup);
 146                                 systemRoles: for (String systemRole : auth.getRoles()) {
 147                                         if (role.equals(systemRole))
 148                                                 continue systemRoles;
 149                                         sysRoles.add(systemRole);
 150                                 }
 151 //                      sysRoles.addAll(Arrays.asList(auth.getRoles()));
 152                         }
 153                         addAbstractSystemRoles(rawAuthorization, sysRoles);
 154                         Authorization authorization = new AggregatingAuthorization(usernameToUse, displayNameToUse, sysRoles,
 155                                         allRoles.toArray(new String[allRoles.size()]));
 156                         return authorization;
 157                 } finally {
 158                         if (userAdminToUse != null && userAdminToUse.isScoped()) {
 159                                 userAdminToUse.destroy();
 160                         }
 161                 }
 162         }
 163
 164         /** Decide whether to scope or not */
 165         private DirectoryUserAdmin userAdminToUse(User user, DirectoryUserAdmin userAdmin) {
 166                 if (userAdmin.isAuthenticated())
 167                         return userAdmin;
 168                 if (user instanceof DirectoryUser) {
 169                         return userAdmin;
 170                 } else if (user instanceof AuthenticatingUser) {
 171                         return userAdmin.scope(user).orElse(null);
 172                 } else {
 173                         throw new IllegalArgumentException("Unsupported user type " + user.getClass());
 174                 }
 175
 176         }
 177
 178         /**
 179          * Enrich with application-specific roles which are strictly programmatic, such
 180          * as anonymous/user semantics.
 181          */
 182         protected void addAbstractSystemRoles(Authorization rawAuthorization, Set<String> sysRoles) {
 183
 184         }
 185
 186         //
 187         // USER ADMIN AGGREGATOR
 188         //
 189         protected void addUserDirectory(UserDirectory ud) {
 190                 if (!(ud instanceof DirectoryUserAdmin))
 191                         throw new IllegalArgumentException("Only " + DirectoryUserAdmin.class.getName() + " is supported");
 192                 DirectoryUserAdmin userDirectory = (DirectoryUserAdmin) ud;
 193                 String basePath = userDirectory.getBase();
 194                 if (isSystemRolesBaseDn(basePath)) {
 195                         this.systemRoles = userDirectory;
 196                         systemRoles.setExternalRoles(this);
 197                 } else if (isTokensBaseDn(basePath)) {
 198                         this.tokens = userDirectory;
 199                         tokens.setExternalRoles(this);
 200                 } else {
 201                         LdapName baseDn = toLdapName(basePath);
 202                         if (businessRoles.containsKey(baseDn))
 203                                 throw new IllegalStateException("There is already a user admin for " + baseDn);
 204                         businessRoles.put(baseDn, userDirectory);
 205                 }
 206                 userDirectory.init();
 207                 postAdd(userDirectory);
 208         }
 209
 210         /** Called after a new user directory has been added */
 211         protected void postAdd(UserDirectory userDirectory) {
 212         }
 213
 214         private DirectoryUserAdmin findUserAdmin(String name) {
 215                 try {
 216                         return findUserAdmin(new LdapName(name));
 217                 } catch (InvalidNameException e) {
 218                         throw new IllegalArgumentException("Badly formatted name " + name, e);
 219                 }
 220         }
 221
 222         private DirectoryUserAdmin findUserAdmin(LdapName name) {
 223                 if (name.startsWith(systemRolesBaseDn))
 224                         return systemRoles;
 225                 if (tokensBaseDn != null && name.startsWith(tokensBaseDn))
 226                         return tokens;
 227                 List<DirectoryUserAdmin> res = new ArrayList<>(1);
 228                 userDirectories: for (LdapName baseDn : businessRoles.keySet()) {
 229                         DirectoryUserAdmin userDirectory = businessRoles.get(baseDn);
 230                         if (name.startsWith(baseDn)) {
 231                                 if (userDirectory.isDisabled())
 232                                         continue userDirectories;
 233 //                              if (res.isEmpty()) {
 234                                 res.add(userDirectory);
 235 //                              } else {
 236 //                                      for (AbstractUserDirectory ud : res) {
 237 //                                              LdapName bd = ud.getBaseDn();
 238 //                                              if (userDirectory.getBaseDn().startsWith(bd)) {
 239 //                                                      // child user directory
 240 //                                              }
 241 //                                      }
 242 //                              }
 243                         }
 244                 }
 245                 if (res.size() == 0)
 246                         throw new IllegalStateException("Cannot find user admin for " + name);
 247                 if (res.size() > 1)
 248                         throw new IllegalStateException("Multiple user admin found for " + name);
 249                 return res.get(0);
 250         }
 251
 252         protected boolean isSystemRolesBaseDn(String basePath) {
 253                 return toLdapName(basePath).equals(systemRolesBaseDn);
 254         }
 255
 256         protected boolean isTokensBaseDn(String basePath) {
 257                 return tokensBaseDn != null && toLdapName(basePath).equals(tokensBaseDn);
 258         }
 259
 260 //      protected Dictionary<String, Object> currentState() {
 261 //              Dictionary<String, Object> res = new Hashtable<String, Object>();
 262 //              // res.put(NodeConstants.CN, NodeConstants.DEFAULT);
 263 //              for (LdapName name : businessRoles.keySet()) {
 264 //                      AbstractUserDirectory userDirectory = businessRoles.get(name);
 265 //                      String uri = UserAdminConf.propertiesAsUri(userDirectory.getProperties()).toString();
 266 //                      res.put(uri, "");
 267 //              }
 268 //              return res;
 269 //      }
 270
 271         public void start() {
 272                 if (systemRoles == null) {
 273                         // TODO do we really need separate system roles?
 274                         Hashtable<String, Object> properties = new Hashtable<>();
 275                         properties.put(DirectoryConf.baseDn.name(), "ou=roles,ou=system");
 276                         systemRoles = new DirectoryUserAdmin(properties);
 277                 }
 278         }
 279
 280         public void stop() {
 281                 for (LdapName name : businessRoles.keySet()) {
 282                         DirectoryUserAdmin userDirectory = businessRoles.get(name);
 283                         destroy(userDirectory);
 284                 }
 285                 businessRoles.clear();
 286                 businessRoles = null;
 287                 destroy(systemRoles);
 288                 systemRoles = null;
 289         }
 290
 291         private void destroy(DirectoryUserAdmin userDirectory) {
 292                 preDestroy(userDirectory);
 293                 userDirectory.destroy();
 294         }
 295
 296 //      protected void removeUserDirectory(UserDirectory userDirectory) {
 297 //              LdapName baseDn = toLdapName(userDirectory.getContext());
 298 //              businessRoles.remove(baseDn);
 299 //              if (userDirectory instanceof DirectoryUserAdmin)
 300 //                      destroy((DirectoryUserAdmin) userDirectory);
 301 //      }
 302
 303         @Deprecated
 304         protected void removeUserDirectory(String basePath) {
 305                 if (isSystemRolesBaseDn(basePath))
 306                         throw new IllegalArgumentException("System roles cannot be removed ");
 307                 LdapName baseDn = toLdapName(basePath);
 308                 if (!businessRoles.containsKey(baseDn))
 309                         throw new IllegalStateException("No user directory registered for " + baseDn);
 310                 DirectoryUserAdmin userDirectory = businessRoles.remove(baseDn);
 311                 destroy(userDirectory);
 312         }
 313
 314         /**
 315          * Called before each user directory is destroyed, so that additional actions
 316          * can be performed.
 317          */
 318         protected void preDestroy(UserDirectory userDirectory) {
 319         }
 320
 321         public Set<UserDirectory> getUserDirectories() {
 322                 TreeSet<UserDirectory> res = new TreeSet<>((o1, o2) -> o1.getBase().compareTo(o2.getBase()));
 323                 res.addAll(businessRoles.values());
 324                 res.add(systemRoles);
 325                 return res;
 326         }
 327
 328 }