Rename enterprise into util
[lgpl/argeo-commons.git] / org.argeo.util / src / org / argeo / osgi / useradmin / LdapUserAdmin.java
diff --git a/org.argeo.util/src/org/argeo/osgi/useradmin/LdapUserAdmin.java b/org.argeo.util/src/org/argeo/osgi/useradmin/LdapUserAdmin.java
new file mode 100644 (file)
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@@ -0,0 +1,189 @@
+package org.argeo.osgi.useradmin;
+
+import static org.argeo.naming.LdapAttrs.objectClass;
+
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.List;
+
+import javax.naming.AuthenticationNotSupportedException;
+import javax.naming.Binding;
+import javax.naming.Context;
+import javax.naming.InvalidNameException;
+import javax.naming.NameNotFoundException;
+import javax.naming.NamingEnumeration;
+import javax.naming.NamingException;
+import javax.naming.directory.Attribute;
+import javax.naming.directory.Attributes;
+import javax.naming.directory.SearchControls;
+import javax.naming.directory.SearchResult;
+import javax.naming.ldap.LdapName;
+
+import org.osgi.framework.Filter;
+import org.osgi.service.useradmin.Role;
+import org.osgi.service.useradmin.User;
+
+/** A user admin based on a LDAP server. */
+public class LdapUserAdmin extends AbstractUserDirectory {
+       private LdapConnection ldapConnection;
+
+       public LdapUserAdmin(Dictionary<String, ?> properties) {
+               this(properties, false);
+       }
+
+       public LdapUserAdmin(Dictionary<String, ?> properties, boolean scoped) {
+               super(null, properties, scoped);
+               ldapConnection = new LdapConnection(getUri().toString(), properties);
+       }
+
+       public void destroy() {
+               ldapConnection.destroy();
+       }
+
+       @Override
+       protected AbstractUserDirectory scope(User user) {
+               Dictionary<String, Object> credentials = user.getCredentials();
+               String username = (String) credentials.get(SHARED_STATE_USERNAME);
+               if (username == null)
+                       username = user.getName();
+               Dictionary<String, Object> properties = cloneProperties();
+               properties.put(Context.SECURITY_PRINCIPAL, username.toString());
+               Object pwdCred = credentials.get(SHARED_STATE_PASSWORD);
+               byte[] pwd = (byte[]) pwdCred;
+               if (pwd != null) {
+                       char[] password = DigestUtils.bytesToChars(pwd);
+                       properties.put(Context.SECURITY_CREDENTIALS, new String(password));
+               } else {
+                       properties.put(Context.SECURITY_AUTHENTICATION, "GSSAPI");
+               }
+               return new LdapUserAdmin(properties, true);
+       }
+
+//     protected InitialLdapContext getLdapContext() {
+//             return initialLdapContext;
+//     }
+
+       @Override
+       protected Boolean daoHasRole(LdapName dn) {
+               try {
+                       return daoGetRole(dn) != null;
+               } catch (NameNotFoundException e) {
+                       return false;
+               }
+       }
+
+       @Override
+       protected DirectoryUser daoGetRole(LdapName name) throws NameNotFoundException {
+               try {
+                       Attributes attrs = ldapConnection.getAttributes(name);
+                       if (attrs.size() == 0)
+                               return null;
+                       int roleType = roleType(name);
+                       LdifUser res;
+                       if (roleType == Role.GROUP)
+                               res = new LdifGroup(this, name, attrs);
+                       else if (roleType == Role.USER)
+                               res = new LdifUser(this, name, attrs);
+                       else
+                               throw new UserDirectoryException("Unsupported LDAP type for " + name);
+                       return res;
+               } catch (NameNotFoundException e) {
+                       throw e;
+               } catch (NamingException e) {
+                       return null;
+               }
+       }
+
+       @Override
+       protected List<DirectoryUser> doGetRoles(Filter f) {
+               ArrayList<DirectoryUser> res = new ArrayList<DirectoryUser>();
+               try {
+                       String searchFilter = f != null ? f.toString()
+                                       : "(|(" + objectClass + "=" + getUserObjectClass() + ")(" + objectClass + "="
+                                                       + getGroupObjectClass() + "))";
+                       SearchControls searchControls = new SearchControls();
+                       searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);
+
+                       LdapName searchBase = getBaseDn();
+                       NamingEnumeration<SearchResult> results = ldapConnection.search(searchBase, searchFilter, searchControls);
+
+                       results: while (results.hasMoreElements()) {
+                               SearchResult searchResult = results.next();
+                               Attributes attrs = searchResult.getAttributes();
+                               Attribute objectClassAttr = attrs.get(objectClass.name());
+                               LdapName dn = toDn(searchBase, searchResult);
+                               LdifUser role;
+                               if (objectClassAttr.contains(getGroupObjectClass())
+                                               || objectClassAttr.contains(getGroupObjectClass().toLowerCase()))
+                                       role = new LdifGroup(this, dn, attrs);
+                               else if (objectClassAttr.contains(getUserObjectClass())
+                                               || objectClassAttr.contains(getUserObjectClass().toLowerCase()))
+                                       role = new LdifUser(this, dn, attrs);
+                               else {
+//                                     log.warn("Unsupported LDAP type for " + searchResult.getName());
+                                       continue results;
+                               }
+                               res.add(role);
+                       }
+                       return res;
+               } catch (AuthenticationNotSupportedException e) {
+                       // ignore (typically an unsupported anonymous bind)
+                       // TODO better logging
+                       return res;
+               } catch (Exception e) {
+                       e.printStackTrace();
+                       throw new UserDirectoryException("Cannot get roles for filter " + f, e);
+               }
+       }
+
+       private LdapName toDn(LdapName baseDn, Binding binding) throws InvalidNameException {
+               return new LdapName(binding.isRelative() ? binding.getName() + "," + baseDn : binding.getName());
+       }
+
+       @Override
+       protected List<LdapName> getDirectGroups(LdapName dn) {
+               List<LdapName> directGroups = new ArrayList<LdapName>();
+               try {
+                       String searchFilter = "(&(" + objectClass + "=" + getGroupObjectClass() + ")(" + getMemberAttributeId()
+                                       + "=" + dn + "))";
+
+                       SearchControls searchControls = new SearchControls();
+                       searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);
+
+                       LdapName searchBase = getBaseDn();
+                       NamingEnumeration<SearchResult> results = ldapConnection.search(searchBase, searchFilter, searchControls);
+
+                       while (results.hasMoreElements()) {
+                               SearchResult searchResult = (SearchResult) results.nextElement();
+                               directGroups.add(toDn(searchBase, searchResult));
+                       }
+                       return directGroups;
+               } catch (Exception e) {
+                       throw new UserDirectoryException("Cannot populate direct members of " + dn, e);
+               }
+       }
+
+       @Override
+       protected void prepare(UserDirectoryWorkingCopy wc) {
+               try {
+                       ldapConnection.prepareChanges(wc);
+               } catch (NamingException e) {
+                       throw new UserDirectoryException("Cannot prepare LDAP", e);
+               }
+       }
+
+       @Override
+       protected void commit(UserDirectoryWorkingCopy wc) {
+               try {
+                       ldapConnection.commitChanges(wc);
+               } catch (NamingException e) {
+                       throw new UserDirectoryException("Cannot commit LDAP", e);
+               }
+       }
+
+       @Override
+       protected void rollback(UserDirectoryWorkingCopy wc) {
+               // prepare not impacting
+       }
+
+}