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From koushik-das <...@git.apache.org>
Subject [GitHub] cloudstack pull request: CLOUDSTACK-8596 ability to query nested g...
Date Thu, 23 Jul 2015 06:43:07 GMT
Github user koushik-das commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/609#discussion_r35293652
  
    --- Diff: plugins/user-authenticators/ldap/src/org/apache/cloudstack/ldap/OpenLdapUserManagerImpl.java
---
    @@ -0,0 +1,233 @@
    +// 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.ldap;
    +
    +import java.io.IOException;
    +import java.util.ArrayList;
    +import java.util.Collections;
    +import java.util.List;
    +
    +import javax.inject.Inject;
    +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.Control;
    +import javax.naming.ldap.LdapContext;
    +import javax.naming.ldap.PagedResultsControl;
    +import javax.naming.ldap.PagedResultsResponseControl;
    +
    +import org.apache.commons.collections.CollectionUtils;
    +import org.apache.commons.lang.StringUtils;
    +import org.apache.log4j.Logger;
    +
    +public class OpenLdapUserManagerImpl implements LdapUserManager {
    +    private static final Logger s_logger = Logger.getLogger(OpenLdapUserManagerImpl.class.getName());
    +
    +    @Inject
    +    protected LdapConfiguration _ldapConfiguration;
    +
    +    public OpenLdapUserManagerImpl() {
    +    }
    +
    +    public OpenLdapUserManagerImpl(final LdapConfiguration ldapConfiguration) {
    +        _ldapConfiguration = ldapConfiguration;
    +    }
    +
    +    protected LdapUser createUser(final SearchResult result) throws NamingException {
    +        final Attributes attributes = result.getAttributes();
    +
    +        final String username = LdapUtils.getAttributeValue(attributes, _ldapConfiguration.getUsernameAttribute());
    +        final String email = LdapUtils.getAttributeValue(attributes, _ldapConfiguration.getEmailAttribute());
    +        final String firstname = LdapUtils.getAttributeValue(attributes, _ldapConfiguration.getFirstnameAttribute());
    +        final String lastname = LdapUtils.getAttributeValue(attributes, _ldapConfiguration.getLastnameAttribute());
    +        final String principal = result.getNameInNamespace();
    +
    +        String domain = principal.replace("cn=" + LdapUtils.getAttributeValue(attributes,
_ldapConfiguration.getCommonNameAttribute()) + ",", "");
    +        domain = domain.replace("," + _ldapConfiguration.getBaseDn(), "");
    +        domain = domain.replace("ou=", "");
    +
    +        return new LdapUser(username, email, firstname, lastname, principal, domain);
    +    }
    +
    +    private String generateSearchFilter(final String username) {
    +        final StringBuilder userObjectFilter = new StringBuilder();
    +        userObjectFilter.append("(objectClass=");
    +        userObjectFilter.append(_ldapConfiguration.getUserObject());
    +        userObjectFilter.append(")");
    +
    +        final StringBuilder usernameFilter = new StringBuilder();
    +        usernameFilter.append("(");
    +        usernameFilter.append(_ldapConfiguration.getUsernameAttribute());
    +        usernameFilter.append("=");
    +        usernameFilter.append((username == null ? "*" : username));
    +        usernameFilter.append(")");
    +
    +        final StringBuilder memberOfFilter = new StringBuilder();
    +        if (_ldapConfiguration.getSearchGroupPrinciple() != null) {
    +            memberOfFilter.append("(memberof=");
    +            memberOfFilter.append(_ldapConfiguration.getSearchGroupPrinciple());
    +            memberOfFilter.append(")");
    +        }
    +
    +        final StringBuilder result = new StringBuilder();
    +        result.append("(&");
    +        result.append(userObjectFilter);
    +        result.append(usernameFilter);
    +        result.append(memberOfFilter);
    +        result.append(")");
    +
    +        return result.toString();
    +    }
    +
    +    private String generateGroupSearchFilter(final String groupName) {
    +        final StringBuilder groupObjectFilter = new StringBuilder();
    +        groupObjectFilter.append("(objectClass=");
    +        groupObjectFilter.append(_ldapConfiguration.getGroupObject());
    +        groupObjectFilter.append(")");
    +
    +        final StringBuilder groupNameFilter = new StringBuilder();
    +        groupNameFilter.append("(");
    +        groupNameFilter.append(_ldapConfiguration.getCommonNameAttribute());
    +        groupNameFilter.append("=");
    +        groupNameFilter.append((groupName == null ? "*" : groupName));
    +        groupNameFilter.append(")");
    +
    +        final StringBuilder result = new StringBuilder();
    +        result.append("(&");
    +        result.append(groupObjectFilter);
    +        result.append(groupNameFilter);
    +        result.append(")");
    +
    +        return result.toString();
    +    }
    +
    +    @Override
    +    public LdapUser getUser(final String username, final LdapContext context) throws
NamingException, IOException {
    +        List<LdapUser> result = searchUsers(username, context);
    +        if (result!= null && result.size() == 1) {
    +            return result.get(0);
    +        } else {
    +            throw new NamingException("No user found for username " + username);
    +        }
    +    }
    +
    +    @Override
    +    public List<LdapUser> getUsers(final LdapContext context) throws NamingException,
IOException {
    +        return getUsers(null, context);
    +    }
    +
    +    @Override
    +    public List<LdapUser> getUsers(final String username, final LdapContext context)
throws NamingException, IOException {
    +        List<LdapUser> users = searchUsers(username, context);
    +
    +        if (CollectionUtils.isNotEmpty(users)) {
    +            Collections.sort(users);
    +        }
    +        return users;
    +    }
    +
    +    @Override
    +    public List<LdapUser> getUsersInGroup(String groupName, LdapContext context)
throws NamingException {
    +        String attributeName = _ldapConfiguration.getGroupUniqueMemeberAttribute();
    +        final SearchControls controls = new SearchControls();
    +        controls.setSearchScope(_ldapConfiguration.getScope());
    +        controls.setReturningAttributes(new String[] {attributeName});
    +
    +        NamingEnumeration<SearchResult> result = context.search(_ldapConfiguration.getBaseDn(),
generateGroupSearchFilter(groupName), controls);
    +
    +        final List<LdapUser> users = new ArrayList<LdapUser>();
    +        //Expecting only one result which has all the users
    +        if (result.hasMoreElements()) {
    +            Attribute attribute = result.nextElement().getAttributes().get(attributeName);
    +            NamingEnumeration<?> values = attribute.getAll();
    +
    +            while (values.hasMoreElements()) {
    +                String userdn = String.valueOf(values.nextElement());
    +                try{
    +                    users.add(getUserForDn(userdn, context));
    +                } catch (NamingException e){
    +                    s_logger.info("Userdn: " + userdn + " Not Found:: Exception message:
" + e.getMessage());
    +                }
    +            }
    +        }
    +
    +        Collections.sort(users);
    +
    +        return users;
    +    }
    +
    +    private LdapUser getUserForDn(String userdn, LdapContext context) throws NamingException
{
    +        final SearchControls controls = new SearchControls();
    +        controls.setSearchScope(_ldapConfiguration.getScope());
    +        controls.setReturningAttributes(_ldapConfiguration.getReturnAttributes());
    +
    +        NamingEnumeration<SearchResult> result = context.search(userdn, "(objectClass="
+ _ldapConfiguration.getUserObject() + ")", controls);
    +        if (result.hasMoreElements()) {
    +            return createUser(result.nextElement());
    +        } else {
    +            throw new NamingException("No user found for dn " + userdn);
    +        }
    +    }
    +
    +    @Override
    +    public List<LdapUser> searchUsers(final LdapContext context) throws NamingException,
IOException {
    +        return searchUsers(null, context);
    +    }
    +
    +    @Override
    +    public List<LdapUser> searchUsers(final String username, final LdapContext
context) throws NamingException, IOException {
    +
    +        final SearchControls searchControls = new SearchControls();
    +
    +        searchControls.setSearchScope(_ldapConfiguration.getScope());
    +        searchControls.setReturningAttributes(_ldapConfiguration.getReturnAttributes());
    +
    +        String basedn = _ldapConfiguration.getBaseDn();
    --- End diff --
    
    Same as one of the previous comments


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