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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2017 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
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* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
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*/
// Portions Copyright [2018-2019] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.security.auth.realm.ldap;
import static java.util.logging.Level.FINE;
import static java.util.logging.Level.FINEST;
import static java.util.logging.Level.WARNING;
import static javax.naming.Context.SECURITY_CREDENTIALS;
import static javax.naming.Context.SECURITY_PRINCIPAL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Level;
import java.util.regex.Matcher;
import javax.naming.CompositeName;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.LdapName;
import javax.naming.ldap.Rdn;
import javax.security.auth.login.LoginException;
import org.glassfish.internal.api.RelativePathResolver;
import org.jvnet.hk2.annotations.Service;
import com.sun.enterprise.security.BaseRealm;
import com.sun.enterprise.security.auth.realm.BadRealmException;
import com.sun.enterprise.security.auth.realm.InvalidOperationException;
import com.sun.enterprise.security.auth.realm.NoSuchRealmException;
import com.sun.enterprise.security.auth.realm.NoSuchUserException;
import com.sun.enterprise.security.auth.realm.certificate.OID;
import java.util.logging.Logger;
/**
* Realm wrapper for supporting LDAP authentication.
*
*
* See LDAPLoginModule documentation for more details on the operation of the LDAP realm and login module.
*
*
* The ldap realm needs the following properties in its configuration:
*
* - directory - URL of LDAP directory to use
*
- base-dn - The base DN to use for user searches.
*
- jaas-ctx - JAAS context name used to access LoginModule for authentication.
*
*
*
* Besides JDK Context properties start with java.naming, javax.security, one can also set connection pool related
* properties starting with com.sun.jndi.ldap.connect.pool. See
* http://java.sun.com/products/jndi/tutorial/ldap/connect/config.html for details. Also, the following optional
* attributes can also be specified:
*
* - search-filter - LDAP filter to use for searching for the user entry based on username given to iAS. The default
* value is
uid=%s where %s is expanded to the username.
* - group-base-dn - The base DN to use for group searches. By default its value is the same as base-dn.
*
- group-search-filter - The LDAP filter to use for searching group membership of a given user. The default value is
*
* uniquemember=%d where %d is expanded to the DN of the user found by the user search.
* - group-target - The attribute which value(s) are interpreted as group membership names of the user. Default value
* is
cn.
* - search-bind-dn - The dn of ldap user. optional and no default value.
*
- search-bind-password - The password of search-bind-dn.optional and no default value.
*
- pool-size - The JNDI ldap connection pool size.
*
*
* @see com.sun.enterprise.security.auth.login.LDAPLoginModule
*/
@Service
public final class LDAPRealm extends BaseRealm {
// Child logger of javax.enterprise.system.core.security
protected static final Logger groupSearchLogger = Logger.getLogger(_logger.getName() + ".ldaprealm.groupsearch");
// Descriptive string of the authentication type of this realm.
public static final String AUTH_TYPE = "ldap";
// These are property names which should be in auth-realm in server.xml
public static final String PARAM_DIRURL = "directory";
public static final String PARAM_USERDN = "base-dn";
// These are optional, defaults are provided
// %s = subject name
// %d = DN of user search result
public static final String PARAM_SEARCH_FILTER = "search-filter";
public static final String PARAM_GRPDN = "group-base-dn";
public static final String PARAM_GRP_SEARCH_FILTER = "group-search-filter";
public static final String PARAM_GRP_TARGET = "group-target";
public static final String PARAM_DYNAMIC_GRP_FILTER = "dynamic-group-search-filter";
public static final String PARAM_DYNAMIC_GRP_TARGET = "dynamic-group-target";
public static final String PARAM_MODE = "mode";
public static final String PARAM_JNDICF = "jndiCtxFactory";
public static final String PARAM_POOLSIZE = "pool-size";
// These are optional, no default values are provided
public static final String PARAM_BINDDN = "search-bind-dn";
public static final String PARAM_BINDPWD = "search-bind-password";
// Only find-bind mode is supported so mode attribute is not exposed yet
public static final String MODE_FIND_BIND = "find-bind";
// Expansion strings
public static final String SUBST_SUBJECT_NAME = "%s";
public static final String SUBST_SUBJECT_DN = "%d";
// Defaults
private static final String SEARCH_FILTER_DEFAULT = "uid=" + SUBST_SUBJECT_NAME;
private static final String GRP_SEARCH_FILTER_DEFAULT = "uniquemember=" + SUBST_SUBJECT_DN;
private static final String GRP_TARGET_DEFAULT = "cn";
private static final String DYNAMIC_GRP_TARGET_DEFAULT = "ismemberof";// "memberOf";
private static final String MODE_DEFAULT = MODE_FIND_BIND;
private static final String JNDICF_DEFAULT = "com.sun.jndi.ldap.LdapCtxFactory";
private static final int POOLSIZE_DEFAULT = 5;
private final String[] _dnOnly = { "dn" };
private static final String SUN_JNDI_POOL = "com.sun.jndi.ldap.connect.pool";
private static final String SUN_JNDI_POOL_ = "com.sun.jndi.ldap.connect.pool.";
private static final String SUN_JNDI_POOL_PROTOCOL = "com.sun.jndi.ldap.connect.pool.protocol";
private static final String SUN_JNDI_POOL_MAXSIZE = "com.sun.jndi.ldap.connect.pool.maxsize";
// dynamic group related properties.
private static final String DYNAMIC_GROUP_OBJECT_FACTORY = "com.sun.jndi.ldap.obj.LdapGroupFactory";
public static final String DYNAMIC_GROUP_FACTORY_OBJECT_PROPERTY = "java.naming.factory.object";
private static final String DYNAMIC_GROUP_STATE_FACTORY = "com.sun.jndi.ldap.obj.LdapGroupFactory";
public static final String DYNAMIC_GROUP_STATE_FACTORY_PROPERTY = "java.naming.factory.state";
public static final String LDAP_SOCKET_FACTORY = "java.naming.ldap.factory.socket";
public static final String DEFAULT_SSL_LDAP_SOCKET_FACTORY = "com.sun.enterprise.security.auth.realm.ldap.CustomSocketFactory";
public static final String LDAPS_URL = "ldaps://";
public static final String DEFAULT_POOL_PROTOCOL = "plain ssl";
public static final String DYNAMIC_GROUP_FILTER = "(&(objectclass=groupofuniquenames)(objectclass=*groupofurls*))";
public static final String SSL = "SSL";
private Map> groupCache;
private final Properties ldapBindProps = new Properties();
@Override
protected synchronized void init(Properties props) throws BadRealmException, NoSuchRealmException {
super.init(props);
String url = props.getProperty(PARAM_DIRURL);
String dn = props.getProperty(PARAM_USERDN);
String jaasCtx = props.getProperty(JAAS_CONTEXT_PARAM);
if (url == null || dn == null || jaasCtx == null) {
throw new BadRealmException(sm.getString("ldaprealm.badconfig", url, dn, jaasCtx));
}
setProperty(PARAM_DIRURL, url);
ldapBindProps.setProperty(Context.PROVIDER_URL, url);
setProperty(PARAM_USERDN, dn);
setProperty(JAAS_CONTEXT_PARAM, jaasCtx);
String mode = props.getProperty(PARAM_MODE, MODE_DEFAULT);
if (!MODE_DEFAULT.equals(mode)) {
throw new BadRealmException(sm.getString("ldaprealm.badmode", mode));
}
setProperty(PARAM_MODE, mode);
String ctxF = props.getProperty(PARAM_JNDICF, JNDICF_DEFAULT);
setProperty(PARAM_JNDICF, ctxF);
ldapBindProps.setProperty(Context.INITIAL_CONTEXT_FACTORY, ctxF);
String searchFilter = props.getProperty(PARAM_SEARCH_FILTER, SEARCH_FILTER_DEFAULT);
setProperty(PARAM_SEARCH_FILTER, searchFilter);
String grpDN = props.getProperty(PARAM_GRPDN, dn);
setProperty(PARAM_GRPDN, grpDN);
String grpSearchFilter = props.getProperty(PARAM_GRP_SEARCH_FILTER, GRP_SEARCH_FILTER_DEFAULT);
setProperty(PARAM_GRP_SEARCH_FILTER, grpSearchFilter);
String dynGrpSearchFilter = props.getProperty(PARAM_DYNAMIC_GRP_FILTER, SEARCH_FILTER_DEFAULT);
setProperty(PARAM_DYNAMIC_GRP_FILTER, dynGrpSearchFilter);
String grpTarget = props.getProperty(PARAM_GRP_TARGET, GRP_TARGET_DEFAULT);
setProperty(PARAM_GRP_TARGET, grpTarget);
String dynGrpTarget = props.getProperty(PARAM_DYNAMIC_GRP_TARGET, DYNAMIC_GRP_TARGET_DEFAULT);
setProperty(PARAM_DYNAMIC_GRP_TARGET, dynGrpTarget);
String objectFactory = props.getProperty(DYNAMIC_GROUP_FACTORY_OBJECT_PROPERTY, DYNAMIC_GROUP_OBJECT_FACTORY);
setProperty(DYNAMIC_GROUP_FACTORY_OBJECT_PROPERTY, objectFactory);
ldapBindProps.setProperty(DYNAMIC_GROUP_FACTORY_OBJECT_PROPERTY, objectFactory);
String stateFactory = props.getProperty(DYNAMIC_GROUP_STATE_FACTORY_PROPERTY, DYNAMIC_GROUP_STATE_FACTORY);
setProperty(DYNAMIC_GROUP_STATE_FACTORY_PROPERTY, stateFactory);
ldapBindProps.setProperty(DYNAMIC_GROUP_STATE_FACTORY_PROPERTY, stateFactory);
String bindDN = props.getProperty(PARAM_BINDDN);
if (bindDN != null) {
setProperty(PARAM_BINDDN, bindDN);
ldapBindProps.setProperty(SECURITY_PRINCIPAL, bindDN);
}
String bindPWD = props.getProperty(PARAM_BINDPWD);
if (bindPWD != null) {
// If the password is aliased, de-alias it
try {
bindPWD = RelativePathResolver.getRealPasswordFromAlias(bindPWD);
} catch (Exception ex) {
_logger.log(WARNING, "ldaprealm.pwd.dealiasing.failed", ex);
}
setProperty(PARAM_BINDPWD, bindPWD);
ldapBindProps.setProperty(SECURITY_CREDENTIALS, bindPWD);
}
Enumeration penum = props.propertyNames();
while (penum.hasMoreElements()) {
String propName = (String) penum.nextElement();
if (propName.startsWith("java.naming.") || propName.startsWith("javax.security.") || propName.startsWith("com.sun.jndi.ldap.")) {
ldapBindProps.setProperty(propName, props.getProperty(propName));
} else if (propName.startsWith(SUN_JNDI_POOL_) && !SUN_JNDI_POOL_MAXSIZE.equals(propName)) {
if (System.getProperty(propName) == null) {
System.setProperty(propName, props.getProperty(propName));
}
}
}
String poolSize = Integer.getInteger(PARAM_POOLSIZE, POOLSIZE_DEFAULT).toString();
String sunPoolSizeStr = props.getProperty(SUN_JNDI_POOL_MAXSIZE, poolSize);
// Precedence rule: SUN_JNDI_POOL_MAXSIZE > PARAM_POOLSIZE > POOLSIZE_DEFAULT
try {
sunPoolSizeStr = Integer.valueOf(sunPoolSizeStr).toString();
} catch (Exception ex) {
sunPoolSizeStr = poolSize;
}
if (System.getProperty(SUN_JNDI_POOL_MAXSIZE) == null) {
System.setProperty(SUN_JNDI_POOL_MAXSIZE, sunPoolSizeStr);
}
setProperty(PARAM_POOLSIZE, sunPoolSizeStr);
String usePool = props.getProperty(SUN_JNDI_POOL, "true");
ldapBindProps.setProperty(SUN_JNDI_POOL, usePool);
if (url.startsWith(LDAPS_URL)) {
ldapBindProps.setProperty(LDAP_SOCKET_FACTORY, DEFAULT_SSL_LDAP_SOCKET_FACTORY);
if (System.getProperty(SUN_JNDI_POOL_PROTOCOL) == null) {
System.setProperty(SUN_JNDI_POOL_PROTOCOL, DEFAULT_POOL_PROTOCOL);
}
_logger.log(FINE, "LDAPRealm : Using custom socket factory for SSL with pooling");
}
if (_logger.isLoggable(FINE)) {
Properties tempProps = (Properties) ldapBindProps.clone();
tempProps.remove(SECURITY_CREDENTIALS);
_logger.log(FINE, "LDAPRealm : {0}", tempProps);
}
groupCache = new HashMap<>();
}
/**
* Returns a short (preferably less than fifteen characters) description of the kind of authentication which is
* supported by this realm.
*
* @return Description of the kind of authentication that is directly supported by this realm.
*/
@Override
public String getAuthType() {
return AUTH_TYPE;
}
private String[] addMappedGroupNames(String[] groups) {
if (groupMapper == null) {
return groups;
}
List finalresult = new ArrayList<>();
for (String group : groups) {
List result = new ArrayList<>();
groupMapper.getMappedGroups(group, result);
finalresult.add(group);
if (!result.isEmpty()) {
finalresult.addAll(result);
}
}
return finalresult.toArray(new String[finalresult.size()]);
}
/**
* Get binding properties defined in server.xml for LDAP server.
*
*/
private Properties getLdapBindProps() {
return (Properties) ldapBindProps.clone();
}
private List getGroups(String userDN) {
// no authentication has happened through the realm.
DirContext ctx = null;
String srcFilter = null;
String dynFilter = null;
String dynMember = getProperty(PARAM_DYNAMIC_GRP_TARGET);
try {
ctx = new InitialDirContext(getLdapBindProps());
String _username = userDN;
LdapName name = new LdapName(userDN); // Ignoring the exception to suppot simple group names as userDN
// Issue GLASSFISH-19595
for (Rdn rdn : name.getRdns()) {
if (rdn.getType().equalsIgnoreCase(OID.CN.getName())) {
_username = rdn.getValue().toString();
break;
}
}
if (_username == null && userDN != null && userDN.startsWith("uid")) {
// handle uid=XXX here where cn is not present
// TODO :maybe there is a better way to handle this??
int first = userDN.indexOf("uid=");
int last = userDN.indexOf(",");
if (first != -1 && last != -1) {
_username = userDN.substring(first + 4, last);
}
}
StringBuilder sb = new StringBuilder(getProperty(PARAM_GRP_SEARCH_FILTER));
StringBuilder dynSb = new StringBuilder(getProperty(PARAM_DYNAMIC_GRP_FILTER));
substitute(sb, SUBST_SUBJECT_NAME, _username);
substitute(sb, SUBST_SUBJECT_DN, userDN);
substitute(dynSb, SUBST_SUBJECT_NAME, _username);
substitute(dynSb, SUBST_SUBJECT_DN, userDN);
srcFilter = sb.toString();
dynFilter = dynSb.toString();
List groupsList = new ArrayList<>();
groupsList.addAll(groupSearch(ctx, getProperty(PARAM_GRPDN), srcFilter, getProperty(PARAM_GRP_TARGET)));
// search filter is constructed internally as
// as a groupofURLS
groupsList.addAll(dynamicGroupSearch(ctx, getProperty(PARAM_GRPDN), dynMember, dynFilter, getProperty(PARAM_GRP_TARGET)));
return groupsList;
} catch (Exception e) {
groupSearchLogger.log(WARNING, "ldaprealm.groupsearcherror", e);
} finally {
if (ctx != null) {
try {
ctx.close();
} catch (NamingException e) {
_logger.log(WARNING, "ldaprealm.exception", e);
}
}
}
return null;
}
/**
* Returns the name of all the groups that this user belongs to. Note that this information is only known after the user
* has logged in. This is called from web path role verification, though it should not be.
*
* @param username Name of the user in this realm whose group listing is needed.
* @return Enumeration of group names (strings).
* @exception InvalidOperationException thrown if the realm does not support this operation - e.g. Certificate realm
* does not support this operation.
*/
@Override
public Enumeration getGroupNames(String username) throws InvalidOperationException, NoSuchUserException {
List cachedGroups = groupCache.get(username);
if (cachedGroups == null) {
// Note : assuming the username is a userDN here
List searchedGrps = getGroups(username);
if (searchedGrps != null) {
return Collections.enumeration(searchedGrps);
}
_logger.fine(() -> "No groups available for: " + username);
// we don't load group here as we need to bind ctx to user with
// password before doing that and password is not available here
return Collections.emptyEnumeration();
}
if (groupMapper == null) {
return Collections.enumeration(cachedGroups);
}
List result = new LinkedList<>(cachedGroups);
for (String grp : cachedGroups) {
result.addAll(this.getMappedGroupNames(grp));
}
return Collections.enumeration(result);
}
/**
* Set group membership info for a user.
*/
private void setGroupNames(String username, String[] groups) {
groupCache.put(username, new LinkedList<>(Arrays.asList(groups)));
}
/**
* Supports mode=find-bind. See class documentation.
*
* @param _username
* @param _password
* @return
* @throws LoginException
*/
public String[] findAndBind(String _username, char[] _password) throws LoginException {
// do search for user, substituting %s for username
_username = RFC2254Encode(_username);
StringBuilder sb = new StringBuilder(getProperty(PARAM_SEARCH_FILTER));
substitute(sb, SUBST_SUBJECT_NAME, _username);
String userid = sb.toString();
// attempt to bind as the user
DirContext ctx = null;
String srcFilter = null;
String[] grpList = null;
String dynFilter = null;
String dynMember = getProperty(PARAM_DYNAMIC_GRP_TARGET);
try {
ctx = new InitialDirContext(getLdapBindProps());
String realUserDN = userSearch(ctx, getProperty(PARAM_USERDN), userid);
if (realUserDN == null) {
String msg = sm.getString("ldaprealm.usernotfound", _username);
throw new LoginException(msg);
}
boolean bindSuccessful = bindAsUser(realUserDN, _password);
if (!bindSuccessful) {
String msg = sm.getString("ldaprealm.bindfailed", realUserDN);
throw new LoginException(msg);
}
// search groups using above connection, substituting %d (and %s)
sb = new StringBuilder(getProperty(PARAM_GRP_SEARCH_FILTER));
StringBuilder dynSb = new StringBuilder(getProperty(PARAM_DYNAMIC_GRP_FILTER));
substitute(sb, SUBST_SUBJECT_NAME, _username);
substitute(sb, SUBST_SUBJECT_DN, realUserDN);
substitute(dynSb, SUBST_SUBJECT_NAME, _username);
substitute(dynSb, SUBST_SUBJECT_DN, realUserDN);
srcFilter = sb.toString();
dynFilter = dynSb.toString();
List groupsList = new ArrayList<>();
groupsList.addAll(groupSearch(ctx, getProperty(PARAM_GRPDN), srcFilter, getProperty(PARAM_GRP_TARGET)));
// search filter is constructed internally as
// as a groupofURLS
groupsList.addAll(dynamicGroupSearch(ctx, getProperty(PARAM_GRPDN), dynMember, dynFilter, getProperty(PARAM_GRP_TARGET)));
grpList = new String[groupsList.size()];
groupsList.toArray(grpList);
} catch (Exception e) {
LoginException le = new LoginException(e.toString());
le.initCause(e);
_logger.log(Level.SEVERE, "ldaprealm.exception", le);
throw le;
} finally {
if (ctx != null) {
try {
ctx.close();
} catch (NamingException e) {
}
}
}
if (_logger.isLoggable(FINE)) {
_logger.log(FINE, "LDAP:Group search filter: {0}", srcFilter);
StringBuilder gb = new StringBuilder();
gb.append("Group memberships found: ");
if (grpList.length > 0) {
for (String grpList1 : grpList) {
gb.append(" ").append(grpList1);
}
} else {
gb.append("(null)");
}
if (_logger.isLoggable(FINE)) {
_logger.log(FINE, "LDAP: {0}", gb.toString());
}
}
grpList = addAssignGroups(grpList);
grpList = this.addMappedGroupNames(grpList);
setGroupNames(_username, grpList);
if (_logger.isLoggable(FINE)) {
_logger.log(FINE, "LDAP: login succeeded for: {0}", _username);
}
return grpList;
}
/**
* Do anonymous search for the user. Should be unique if exists.
*
*/
private String userSearch(DirContext ctx, String baseDN, String filter) {
if (_logger.isLoggable(FINEST)) {
_logger.log(FINE, "search: baseDN: {0} filter: {1}", new Object[] { baseDN, filter });
}
String foundDN = null;
NamingEnumeration namingEnum = null;
SearchControls ctls = new SearchControls();
ctls.setReturningAttributes(_dnOnly);
ctls.setSearchScope(SearchControls.SUBTREE_SCOPE);
ctls.setCountLimit(1);
try {
namingEnum = ctx.search(baseDN, filter, ctls);
if (namingEnum.hasMore()) {
SearchResult res = (SearchResult) namingEnum.next();
StringBuilder sb = new StringBuilder();
// for dn name with '/'
CompositeName compDN = new CompositeName(res.getName());
String ldapDN = compDN.get(0);
sb.append(ldapDN);
if (res.isRelative()) {
sb.append(",");
sb.append(baseDN);
}
foundDN = sb.toString();
if (_logger.isLoggable(FINEST)) {
_logger.log(FINE, "Found user DN: {0}", foundDN);
}
}
} catch (Exception e) {
_logger.log(WARNING, "ldaprealm.searcherror", filter);
_logger.log(WARNING, "security.exception", e);
} finally {
if (namingEnum != null) {
try {
namingEnum.close();
} catch (Exception ex) {
}
}
}
return foundDN;
}
/**
* Attempt to bind as a specific DN.
*
*/
private boolean bindAsUser(String bindDN, char[] password) {
boolean bindSuccessful = false;
Properties bindProperties = getLdapBindProps();
bindProperties.put(SECURITY_PRINCIPAL, bindDN);
bindProperties.put(SECURITY_CREDENTIALS, new String(password));
DirContext ctx = null;
try {
ctx = new InitialDirContext(bindProperties);
bindSuccessful = true;
} catch (Exception e) {
if (_logger.isLoggable(FINEST)) {
_logger.log(FINEST, "Error binding to directory as: {0}", bindDN);
_logger.log(FINEST, "Exception from JNDI: {0}", e.toString());
}
} finally {
if (ctx != null) {
try {
ctx.close();
} catch (NamingException e) {
}
}
}
return bindSuccessful;
}
/**
* Search for group membership using the given connection.
*
*/
private List dynamicGroupSearch(DirContext ctx, String baseDN, String memberOfAttr, String filter, String target) {
List groupList = new ArrayList<>();
String[] targets = new String[] { memberOfAttr };
try {
SearchControls searchControls = new SearchControls();
searchControls.setReturningAttributes(targets);
searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);
// Set this to false to avoid objects and hence exposing ldap object
// injection.
searchControls.setReturningObjFlag(false);
NamingEnumeration e = ctx.search(baseDN, filter, searchControls);
while (e.hasMore()) {
SearchResult res = (SearchResult) e.next();
Attribute isMemberOf = res.getAttributes().get(memberOfAttr);
if (isMemberOf != null) {
for (Enumeration values = isMemberOf.getAll(); values.hasMoreElements();) {
String groupDN = (String) values.nextElement();
LdapName dn = new LdapName(groupDN);
for (Rdn rdn : dn.getRdns()) {
if (rdn.getType().equalsIgnoreCase(target)) {
groupList.add(rdn.getValue().toString());
break;
}
}
}
}
}
} catch (Exception e) {
_logger.log(WARNING, "ldaprealm.searcherror", filter);
_logger.log(WARNING, "security.exception", e);
}
return groupList;
}
/**
* Search for group membership using the given connection.
*
*/
private List groupSearch(DirContext ctx, String baseDN, String filter, String target) {
List groupList = new ArrayList<>();
try {
String[] targets = new String[1];
targets[0] = target;
SearchControls ctls = new SearchControls();
ctls.setReturningAttributes(targets);
ctls.setSearchScope(SearchControls.SUBTREE_SCOPE);
NamingEnumeration e = ctx.search(baseDN,
filter.replaceAll(Matcher.quoteReplacement("\\"), Matcher.quoteReplacement("\\\\")), ctls);
while (e.hasMore()) {
SearchResult res = e.next();
Attribute grpAttr = res.getAttributes().get(target);
int sz = grpAttr.size();
for (int i = 0; i < sz; i++) {
String s = (String) grpAttr.get(i);
groupList.add(s);
}
}
} catch (Exception e) {
_logger.log(WARNING, "ldaprealm.searcherror", filter);
_logger.log(WARNING, "security.exception", e);
}
return groupList;
}
/**
* Do string substitution. target is replaced by value for all occurences.
*
*/
private static void substitute(StringBuilder sb, String target, String value) {
int i = sb.indexOf(target);
while (i >= 0) {
sb.replace(i, i + target.length(), value);
i = sb.indexOf(target);
}
}
/**
* Escape special chars in search filter, according to RFC2254 (The String Representation
* of LDAP Search Filters)
*/
private String RFC2254Encode(String inName) {
int len = inName.length();
StringBuilder buf = new StringBuilder(len);
for (int i = 0; i < len; i++) {
char ch = inName.charAt(i);
switch (ch) {
case '*':
buf.append("\\2a");
break;
case '(':
buf.append("\\28");
break;
case ')':
buf.append("\\29");
break;
case '\\':
buf.append("\\5c");
break;
case 0:
buf.append("\\00");
break;
default:
buf.append(ch);
}
}
return buf.toString();
}
}