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LdapCtx.java
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LdapCtx.java
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/*
* Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.jndi.ldap;
import javax.naming.*;
import javax.naming.directory.*;
import javax.naming.event.*;
import javax.naming.ldap.*;
import javax.naming.ldap.LdapName;
import javax.naming.ldap.Rdn;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.Collections;
import java.util.Locale;
import java.util.Set;
import java.util.Vector;
import java.util.Hashtable;
import java.util.List;
import java.util.StringTokenizer;
import java.util.Enumeration;
import java.util.concurrent.locks.ReentrantLock;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.io.IOException;
import java.io.OutputStream;
import com.sun.jndi.toolkit.ctx.*;
import com.sun.jndi.toolkit.dir.HierMemDirCtx;
import com.sun.jndi.toolkit.dir.SearchFilter;
import com.sun.jndi.ldap.ext.StartTlsResponseImpl;
import com.sun.naming.internal.NamingManagerHelper;
import com.sun.naming.internal.ObjectFactoriesFilter;
/**
* The LDAP context implementation.
*
* Implementation is not thread-safe. Caller must sync as per JNDI spec.
* Members that are used directly or indirectly by internal worker threads
* (Connection, EventQueue, NamingEventNotifier) must be thread-safe.
* Connection - calls LdapClient.processUnsolicited(), which in turn calls
* LdapCtx.convertControls() and LdapCtx.fireUnsolicited().
* convertControls() - no sync; reads envprops and 'this'
* fireUnsolicited() - sync on eventSupport for all references to 'unsolicited'
* (even those in other methods); don't sync on LdapCtx in case caller
* is already sync'ing on it - this would prevent Unsol events from firing
* and the Connection thread to block (thus preventing any other data
* from being read from the connection)
* References to 'eventSupport' need not be sync'ed because these
* methods can only be called after eventSupport has been set first
* (via addNamingListener()).
* EventQueue - no direct or indirect calls to LdapCtx
* NamingEventNotifier - calls newInstance() to get instance for run() to use;
* no sync needed for methods invoked on new instance;
*
* LdapAttribute links to LdapCtx in order to process getAttributeDefinition()
* and getAttributeSyntaxDefinition() calls. It invokes LdapCtx.getSchema(),
* which uses schemaTrees (a Hashtable - already sync). Potential conflict
* of duplicating construction of tree for same subschemasubentry
* but no inconsistency problems.
*
* NamingEnumerations link to LdapCtx for the following:
* 1. increment/decrement enum count so that ctx doesn't close the
* underlying connection
* 2. LdapClient handle to get next batch of results
* 3. Sets LdapCtx's response controls
* 4. Process return code
* 5. For narrowing response controls (using ctx's factories)
* Since processing of NamingEnumeration by client is treated the same as method
* invocation on LdapCtx, caller is responsible for locking.
*
* @author Vincent Ryan
* @author Rosanna Lee
*/
public final class LdapCtx extends ComponentDirContext
implements EventDirContext, LdapContext {
/*
* Used to store arguments to the search method.
*/
static final class SearchArgs {
Name name;
String filter;
SearchControls cons;
String[] reqAttrs; // those attributes originally requested
SearchArgs(Name name, String filter, SearchControls cons, String[] ra) {
this.name = name;
this.filter = filter;
this.cons = cons;
this.reqAttrs = ra;
}
}
private static final boolean debug = false;
private static final boolean HARD_CLOSE = true;
private static final boolean SOFT_CLOSE = false;
// ----------------- Constants -----------------
public static final int DEFAULT_PORT = 389;
public static final int DEFAULT_SSL_PORT = 636;
public static final String DEFAULT_HOST = "localhost";
private static final boolean DEFAULT_DELETE_RDN = true;
private static final boolean DEFAULT_TYPES_ONLY = false;
private static final int DEFAULT_DEREF_ALIASES = 3; // always deref
private static final int DEFAULT_LDAP_VERSION = LdapClient.LDAP_VERSION3_VERSION2;
private static final int DEFAULT_BATCH_SIZE = 1;
private static final int DEFAULT_REFERRAL_MODE = LdapClient.LDAP_REF_IGNORE;
private static final char DEFAULT_REF_SEPARATOR = '#';
// Used by LdapPoolManager
static final String DEFAULT_SSL_FACTORY =
"javax.net.ssl.SSLSocketFactory"; // use Sun's SSL
private static final int DEFAULT_REFERRAL_LIMIT = 10;
private static final String STARTTLS_REQ_OID = "1.3.6.1.4.1.1466.20037";
// schema operational and user attributes
private static final String[] SCHEMA_ATTRIBUTES =
{ "objectClasses", "attributeTypes", "matchingRules", "ldapSyntaxes" };
// --------------- Environment property names ----------
// LDAP protocol version: "2", "3"
private static final String VERSION = "java.naming.ldap.version";
// Binary-valued attributes. Space separated string of attribute names.
private static final String BINARY_ATTRIBUTES =
"java.naming.ldap.attributes.binary";
// Delete old RDN during modifyDN: "true", "false"
private static final String DELETE_RDN = "java.naming.ldap.deleteRDN";
// De-reference aliases: "never", "searching", "finding", "always"
private static final String DEREF_ALIASES = "java.naming.ldap.derefAliases";
// Return only attribute types (no values)
private static final String TYPES_ONLY = "java.naming.ldap.typesOnly";
// Separator character for encoding Reference's RefAddrs; default is '#'
private static final String REF_SEPARATOR = "java.naming.ldap.ref.separator";
// Socket factory
private static final String SOCKET_FACTORY = "java.naming.ldap.factory.socket";
// Bind Controls (used by LdapReferralException)
static final String BIND_CONTROLS = "java.naming.ldap.control.connect";
private static final String REFERRAL_LIMIT =
"java.naming.ldap.referral.limit";
// trace BER (java.io.OutputStream)
private static final String TRACE_BER = "com.sun.jndi.ldap.trace.ber";
// Get around Netscape Schema Bugs
private static final String NETSCAPE_SCHEMA_BUG =
"com.sun.jndi.ldap.netscape.schemaBugs";
// deprecated
private static final String OLD_NETSCAPE_SCHEMA_BUG =
"com.sun.naming.netscape.schemaBugs"; // for backward compatibility
// Timeout for socket connect
private static final String CONNECT_TIMEOUT =
"com.sun.jndi.ldap.connect.timeout";
// Timeout for reading responses
private static final String READ_TIMEOUT =
"com.sun.jndi.ldap.read.timeout";
// Environment property for connection pooling
private static final String ENABLE_POOL = "com.sun.jndi.ldap.connect.pool";
// Environment property for the domain name (derived from this context's DN)
private static final String DOMAIN_NAME = "com.sun.jndi.ldap.domainname";
// Block until the first search reply is received
private static final String WAIT_FOR_REPLY =
"com.sun.jndi.ldap.search.waitForReply";
// Size of the queue of unprocessed search replies
private static final String REPLY_QUEUE_SIZE =
"com.sun.jndi.ldap.search.replyQueueSize";
// System and environment property name to control allowed list of
// authentication mechanisms: "all" or "" or "mech1,mech2,...,mechN"
// "all": allow all mechanisms,
// "": allow none
// or comma separated list of allowed authentication mechanisms
// Note: "none" or "anonymous" are always allowed.
private static final String ALLOWED_MECHS_SP =
"jdk.jndi.ldap.mechsAllowedToSendCredentials";
// System property value
private static final String ALLOWED_MECHS_SP_VALUE =
getMechsAllowedToSendCredentials();
// Set of authentication mechanisms allowed by the system property
private static final Set<String> MECHS_ALLOWED_BY_SP =
getMechsFromPropertyValue(ALLOWED_MECHS_SP_VALUE);
// The message to use in NamingException if the transmission of plain credentials are not allowed
private static final String UNSECURED_CRED_TRANSMIT_MSG =
"Transmission of credentials over unsecured connection is not allowed";
// ----------------- Fields that don't change -----------------------
private static final NameParser parser = new LdapNameParser();
// controls that Provider needs
private static final ControlFactory myResponseControlFactory =
new DefaultResponseControlFactory();
private static final Control manageReferralControl =
new ManageReferralControl(false);
private static final HierMemDirCtx EMPTY_SCHEMA = new HierMemDirCtx();
static {
EMPTY_SCHEMA.setReadOnly(
new SchemaViolationException("Cannot update schema object"));
}
// ------------ Package private instance variables ----------------
// Cannot be private; used by enums
// ------- Inherited by derived context instances
int port_number; // port number of server
String hostname = null; // host name of server (no brackets
// for IPv6 literals)
LdapClient clnt = null; // connection handle
Hashtable<String, java.lang.Object> envprops = null; // environment properties of context
int handleReferrals = DEFAULT_REFERRAL_MODE; // how referral is handled
boolean hasLdapsScheme = false; // true if the context was created
// using an LDAPS URL.
// ------- Not inherited by derived context instances
String currentDN; // DN of this context
Name currentParsedDN; // DN of this context
Vector<Control> respCtls = null; // Response controls read
Control[] reqCtls = null; // Controls to be sent with each request
// Used to track if context was seen to be secured with STARTTLS extended operation
volatile boolean contextSeenStartTlsEnabled;
// ------------- Private instance variables ------------------------
// ------- Inherited by derived context instances
private OutputStream trace = null; // output stream for BER debug output
private boolean netscapeSchemaBug = false; // workaround
private Control[] bindCtls = null; // Controls to be sent with LDAP "bind"
private int referralHopLimit = DEFAULT_REFERRAL_LIMIT; // max referral
private Hashtable<String, DirContext> schemaTrees = null; // schema root of this context
private int batchSize = DEFAULT_BATCH_SIZE; // batch size for search results
private boolean deleteRDN = DEFAULT_DELETE_RDN; // delete the old RDN when modifying DN
private boolean typesOnly = DEFAULT_TYPES_ONLY; // return attribute types (no values)
private int derefAliases = DEFAULT_DEREF_ALIASES;// de-reference alias entries during searching
private char addrEncodingSeparator = DEFAULT_REF_SEPARATOR; // encoding RefAddr
private Hashtable<String, Boolean> binaryAttrs = null; // attr values returned as byte[]
private int connectTimeout = -1; // no timeout value
private int readTimeout = -1; // no timeout value
private boolean waitForReply = true; // wait for search response
private int replyQueueSize = -1; // unlimited queue size
private boolean useSsl = false; // true if SSL protocol is active
private boolean useDefaultPortNumber = false; // no port number was supplied
// ------- Not inherited by derived context instances
// True if this context was created by another LdapCtx.
private boolean parentIsLdapCtx = false; // see composeName()
private int hopCount = 1; // current referral hop count
private String url = null; // URL of context; see getURL()
private EventSupport eventSupport; // Event support helper for this ctx
private boolean unsolicited = false; // if there unsolicited listeners
private boolean sharable = true; // can share connection with other ctx
private final ReentrantLock lock = new ReentrantLock(); // LdapCtx instance lock
// -------------- Constructors -----------------------------------
@SuppressWarnings("unchecked")
public LdapCtx(String dn, String host, int port_number,
Hashtable<?,?> props,
boolean useSsl) throws NamingException {
this.useSsl = this.hasLdapsScheme = useSsl;
if (props != null) {
envprops = (Hashtable<String, java.lang.Object>) props.clone();
// SSL env prop overrides the useSsl argument
if ("ssl".equals(envprops.get(Context.SECURITY_PROTOCOL))) {
this.useSsl = true;
}
// %%% These are only examined when the context is created
// %%% because they are only for debugging or workaround purposes.
trace = (OutputStream)envprops.get(TRACE_BER);
if (props.get(NETSCAPE_SCHEMA_BUG) != null ||
props.get(OLD_NETSCAPE_SCHEMA_BUG) != null) {
netscapeSchemaBug = true;
}
}
currentDN = (dn != null) ? dn : "";
currentParsedDN = parser.parse(currentDN);
hostname = (host != null && host.length() > 0) ? host : DEFAULT_HOST;
if (hostname.charAt(0) == '[') {
hostname = hostname.substring(1, hostname.length() - 1);
}
if (port_number > 0) {
this.port_number = port_number;
} else {
this.port_number = this.useSsl ? DEFAULT_SSL_PORT : DEFAULT_PORT;
this.useDefaultPortNumber = true;
}
schemaTrees = new Hashtable<>(11, 0.75f);
initEnv();
try {
connect(false);
} catch (NamingException e) {
try {
close();
} catch (Exception e2) {
// Nothing
}
throw e;
}
}
LdapCtx(LdapCtx existing, String newDN) throws NamingException {
useSsl = existing.useSsl;
hasLdapsScheme = existing.hasLdapsScheme;
useDefaultPortNumber = existing.useDefaultPortNumber;
hostname = existing.hostname;
port_number = existing.port_number;
currentDN = newDN;
if (existing.currentDN == currentDN) {
currentParsedDN = existing.currentParsedDN;
} else {
currentParsedDN = parser.parse(currentDN);
}
envprops = existing.envprops;
schemaTrees = existing.schemaTrees;
clnt = existing.clnt;
clnt.incRefCount();
parentIsLdapCtx = ((newDN == null || newDN.equals(existing.currentDN))
? existing.parentIsLdapCtx
: true);
// inherit these debugging/workaround flags
trace = existing.trace;
netscapeSchemaBug = existing.netscapeSchemaBug;
initEnv();
}
public LdapContext newInstance(Control[] reqCtls) throws NamingException {
LdapContext clone = new LdapCtx(this, currentDN);
// Connection controls are inherited from environment
// Set clone's request controls
// setRequestControls() will clone reqCtls
clone.setRequestControls(reqCtls);
return clone;
}
// --------------- Namespace Updates ---------------------
// -- bind/rebind/unbind
// -- rename
// -- createSubcontext/destroySubcontext
protected void c_bind(Name name, Object obj, Continuation cont)
throws NamingException {
c_bind(name, obj, null, cont);
}
/*
* attrs == null
* if obj is DirContext, attrs = obj.getAttributes()
* if attrs == null && obj == null
* disallow (cannot determine objectclass to use)
* if obj == null
* just create entry using attrs
* else
* objAttrs = create attributes for representing obj
* attrs += objAttrs
* create entry using attrs
*/
protected void c_bind(Name name, Object obj, Attributes attrs,
Continuation cont)
throws NamingException {
cont.setError(this, name);
Attributes inputAttrs = attrs; // Attributes supplied by caller
try {
ensureOpen();
if (obj == null) {
if (attrs == null) {
throw new IllegalArgumentException(
"cannot bind null object with no attributes");
}
} else {
attrs = Obj.determineBindAttrs(addrEncodingSeparator, obj, attrs,
false, name, this, envprops); // not cloned
}
String newDN = fullyQualifiedName(name);
attrs = addRdnAttributes(newDN, attrs, inputAttrs != attrs);
LdapEntry entry = new LdapEntry(newDN, attrs);
LdapResult answer = clnt.add(entry, reqCtls);
respCtls = answer.resControls; // retrieve response controls
if (answer.status != LdapClient.LDAP_SUCCESS) {
processReturnCode(answer, name);
}
} catch (LdapReferralException e) {
if (handleReferrals == LdapClient.LDAP_REF_THROW)
throw cont.fillInException(e);
// process the referrals sequentially
while (true) {
LdapReferralContext refCtx =
(LdapReferralContext)e.getReferralContext(envprops, bindCtls);
// repeat the original operation at the new context
try {
refCtx.bind(name, obj, inputAttrs);
return;
} catch (LdapReferralException re) {
e = re;
continue;
} finally {
// Make sure we close referral context
refCtx.close();
}
}
} catch (IOException e) {
NamingException e2 = new CommunicationException(e.getMessage());
e2.setRootCause(e);
throw cont.fillInException(e2);
} catch (NamingException e) {
throw cont.fillInException(e);
}
}
protected void c_rebind(Name name, Object obj, Continuation cont)
throws NamingException {
c_rebind(name, obj, null, cont);
}
/*
* attrs == null
* if obj is DirContext, attrs = obj.getAttributes().
* if attrs == null
* leave any existing attributes alone
* (set attrs = {objectclass=top} if object doesn't exist)
* else
* replace all existing attributes with attrs
* if obj == null
* just create entry using attrs
* else
* objAttrs = create attributes for representing obj
* attrs += objAttrs
* create entry using attrs
*/
protected void c_rebind(Name name, Object obj, Attributes attrs,
Continuation cont) throws NamingException {
cont.setError(this, name);
Attributes inputAttrs = attrs;
try {
Attributes origAttrs = null;
// Check if name is bound
try {
origAttrs = c_getAttributes(name, null, cont);
} catch (NameNotFoundException e) {}
// Name not bound, just add it
if (origAttrs == null) {
c_bind(name, obj, attrs, cont);
return;
}
// there's an object there already, need to figure out
// what to do about its attributes
if (attrs == null && obj instanceof DirContext) {
attrs = ((DirContext)obj).getAttributes("");
}
Attributes keepAttrs = (Attributes)origAttrs.clone();
if (attrs == null) {
// we're not changing any attrs, leave old attributes alone
// Remove Java-related object classes from objectclass attribute
Attribute origObjectClass =
origAttrs.get(Obj.JAVA_ATTRIBUTES[Obj.OBJECT_CLASS]);
if (origObjectClass != null) {
// clone so that keepAttrs is not affected
origObjectClass = (Attribute)origObjectClass.clone();
for (int i = 0; i < Obj.JAVA_OBJECT_CLASSES.length; i++) {
origObjectClass.remove(Obj.JAVA_OBJECT_CLASSES_LOWER[i]);
origObjectClass.remove(Obj.JAVA_OBJECT_CLASSES[i]);
}
// update;
origAttrs.put(origObjectClass);
}
// remove all Java-related attributes except objectclass
for (int i = 1; i < Obj.JAVA_ATTRIBUTES.length; i++) {
origAttrs.remove(Obj.JAVA_ATTRIBUTES[i]);
}
attrs = origAttrs;
}
if (obj != null) {
attrs =
Obj.determineBindAttrs(addrEncodingSeparator, obj, attrs,
inputAttrs != attrs, name, this, envprops);
}
String newDN = fullyQualifiedName(name);
// remove entry
LdapResult answer = clnt.delete(newDN, reqCtls);
respCtls = answer.resControls; // retrieve response controls
if (answer.status != LdapClient.LDAP_SUCCESS) {
processReturnCode(answer, name);
return;
}
Exception addEx = null;
try {
attrs = addRdnAttributes(newDN, attrs, inputAttrs != attrs);
// add it back using updated attrs
LdapEntry entry = new LdapEntry(newDN, attrs);
answer = clnt.add(entry, reqCtls);
if (answer.resControls != null) {
respCtls = appendVector(respCtls, answer.resControls);
}
} catch (NamingException | IOException ae) {
addEx = ae;
}
if ((addEx != null && !(addEx instanceof LdapReferralException)) ||
answer.status != LdapClient.LDAP_SUCCESS) {
// Attempt to restore old entry
LdapResult answer2 =
clnt.add(new LdapEntry(newDN, keepAttrs), reqCtls);
if (answer2.resControls != null) {
respCtls = appendVector(respCtls, answer2.resControls);
}
if (addEx == null) {
processReturnCode(answer, name);
}
}
// Rethrow exception
if (addEx instanceof NamingException) {
throw (NamingException)addEx;
} else if (addEx instanceof IOException) {
throw (IOException)addEx;
}
} catch (LdapReferralException e) {
if (handleReferrals == LdapClient.LDAP_REF_THROW)
throw cont.fillInException(e);
// process the referrals sequentially
while (true) {
LdapReferralContext refCtx =
(LdapReferralContext)e.getReferralContext(envprops, bindCtls);
// repeat the original operation at the new context
try {
refCtx.rebind(name, obj, inputAttrs);
return;
} catch (LdapReferralException re) {
e = re;
continue;
} finally {
// Make sure we close referral context
refCtx.close();
}
}
} catch (IOException e) {
NamingException e2 = new CommunicationException(e.getMessage());
e2.setRootCause(e);
throw cont.fillInException(e2);
} catch (NamingException e) {
throw cont.fillInException(e);
}
}
protected void c_unbind(Name name, Continuation cont)
throws NamingException {
cont.setError(this, name);
try {
ensureOpen();
String fname = fullyQualifiedName(name);
LdapResult answer = clnt.delete(fname, reqCtls);
respCtls = answer.resControls; // retrieve response controls
adjustDeleteStatus(fname, answer);
if (answer.status != LdapClient.LDAP_SUCCESS) {
processReturnCode(answer, name);
}
} catch (LdapReferralException e) {
if (handleReferrals == LdapClient.LDAP_REF_THROW)
throw cont.fillInException(e);
// process the referrals sequentially
while (true) {
LdapReferralContext refCtx =
(LdapReferralContext)e.getReferralContext(envprops, bindCtls);
// repeat the original operation at the new context
try {
refCtx.unbind(name);
return;
} catch (LdapReferralException re) {
e = re;
continue;
} finally {
// Make sure we close referral context
refCtx.close();
}
}
} catch (IOException e) {
NamingException e2 = new CommunicationException(e.getMessage());
e2.setRootCause(e);
throw cont.fillInException(e2);
} catch (NamingException e) {
throw cont.fillInException(e);
}
}
protected void c_rename(Name oldName, Name newName, Continuation cont)
throws NamingException
{
Name oldParsed, newParsed;
Name oldParent, newParent;
String newRDN = null;
String newSuperior = null;
// assert (oldName instanceOf CompositeName);
cont.setError(this, oldName);
try {
ensureOpen();
// permit oldName to be empty (for processing referral contexts)
if (oldName.isEmpty()) {
oldParent = parser.parse("");
} else {
oldParsed = parser.parse(oldName.get(0)); // extract DN & parse
oldParent = oldParsed.getPrefix(oldParsed.size() - 1);
}
if (newName instanceof CompositeName) {
newParsed = parser.parse(newName.get(0)); // extract DN & parse
} else {
newParsed = newName; // CompoundName/LdapName is already parsed
}
newParent = newParsed.getPrefix(newParsed.size() - 1);
if(!oldParent.equals(newParent)) {
if (!clnt.isLdapv3) {
throw new InvalidNameException(
"LDAPv2 doesn't support changing " +
"the parent as a result of a rename");
} else {
newSuperior = fullyQualifiedName(newParent.toString());
}
}
newRDN = newParsed.get(newParsed.size() - 1);
LdapResult answer = clnt.moddn(fullyQualifiedName(oldName),
newRDN,
deleteRDN,
newSuperior,
reqCtls);
respCtls = answer.resControls; // retrieve response controls
if (answer.status != LdapClient.LDAP_SUCCESS) {
processReturnCode(answer, oldName);
}
} catch (LdapReferralException e) {
// Record the new RDN (for use after the referral is followed).
e.setNewRdn(newRDN);
// Cannot continue when a referral has been received and a
// newSuperior name was supplied (because the newSuperior is
// relative to a naming context BEFORE the referral is followed).
if (newSuperior != null) {
PartialResultException pre = new PartialResultException(
"Cannot continue referral processing when newSuperior is " +
"nonempty: " + newSuperior);
pre.setRootCause(cont.fillInException(e));
throw cont.fillInException(pre);
}
if (handleReferrals == LdapClient.LDAP_REF_THROW)
throw cont.fillInException(e);
// process the referrals sequentially
while (true) {
LdapReferralContext refCtx =
(LdapReferralContext)e.getReferralContext(envprops, bindCtls);
// repeat the original operation at the new context
try {
refCtx.rename(oldName, newName);
return;
} catch (LdapReferralException re) {
e = re;
continue;
} finally {
// Make sure we close referral context
refCtx.close();
}
}
} catch (IOException e) {
NamingException e2 = new CommunicationException(e.getMessage());
e2.setRootCause(e);
throw cont.fillInException(e2);
} catch (NamingException e) {
throw cont.fillInException(e);
}
}
protected Context c_createSubcontext(Name name, Continuation cont)
throws NamingException {
return c_createSubcontext(name, null, cont);
}
protected DirContext c_createSubcontext(Name name, Attributes attrs,
Continuation cont)
throws NamingException {
cont.setError(this, name);
Attributes inputAttrs = attrs;
try {
ensureOpen();
if (attrs == null) {
// add structural objectclass; name needs to have "cn"
Attribute oc = new BasicAttribute(
Obj.JAVA_ATTRIBUTES[Obj.OBJECT_CLASS],
Obj.JAVA_OBJECT_CLASSES[Obj.STRUCTURAL]);
oc.add("top");
attrs = new BasicAttributes(true); // case ignore
attrs.put(oc);
}
String newDN = fullyQualifiedName(name);
attrs = addRdnAttributes(newDN, attrs, inputAttrs != attrs);
LdapEntry entry = new LdapEntry(newDN, attrs);
LdapResult answer = clnt.add(entry, reqCtls);
respCtls = answer.resControls; // retrieve response controls
if (answer.status != LdapClient.LDAP_SUCCESS) {
processReturnCode(answer, name);
return null;
}
// creation successful, get back live object
return new LdapCtx(this, newDN);
} catch (LdapReferralException e) {
if (handleReferrals == LdapClient.LDAP_REF_THROW)
throw cont.fillInException(e);
// process the referrals sequentially
while (true) {
LdapReferralContext refCtx =
(LdapReferralContext)e.getReferralContext(envprops, bindCtls);
// repeat the original operation at the new context
try {
return refCtx.createSubcontext(name, inputAttrs);
} catch (LdapReferralException re) {
e = re;
continue;
} finally {
// Make sure we close referral context
refCtx.close();
}
}
} catch (IOException e) {
NamingException e2 = new CommunicationException(e.getMessage());
e2.setRootCause(e);
throw cont.fillInException(e2);
} catch (NamingException e) {
throw cont.fillInException(e);
}
}
protected void c_destroySubcontext(Name name, Continuation cont)
throws NamingException {
cont.setError(this, name);
try {
ensureOpen();
String fname = fullyQualifiedName(name);
LdapResult answer = clnt.delete(fname, reqCtls);
respCtls = answer.resControls; // retrieve response controls
adjustDeleteStatus(fname, answer);
if (answer.status != LdapClient.LDAP_SUCCESS) {
processReturnCode(answer, name);
}
} catch (LdapReferralException e) {
if (handleReferrals == LdapClient.LDAP_REF_THROW)
throw cont.fillInException(e);
// process the referrals sequentially
while (true) {
LdapReferralContext refCtx =
(LdapReferralContext)e.getReferralContext(envprops, bindCtls);
// repeat the original operation at the new context
try {
refCtx.destroySubcontext(name);
return;
} catch (LdapReferralException re) {
e = re;
continue;
} finally {
// Make sure we close referral context
refCtx.close();
}
}
} catch (IOException e) {
NamingException e2 = new CommunicationException(e.getMessage());
e2.setRootCause(e);
throw cont.fillInException(e2);
} catch (NamingException e) {
throw cont.fillInException(e);
}
}
/**
* Adds attributes from RDN to attrs if not already present.
* Note that if attrs already contains an attribute by the same name,
* or if the distinguished name is empty, then leave attrs unchanged.
*
* @param dn The non-null DN of the entry to add
* @param attrs The non-null attributes of entry to add
* @param directUpdate Whether attrs can be updated directly
* @return Non-null attributes with attributes from the RDN added
*/
private static Attributes addRdnAttributes(String dn, Attributes attrs,
boolean directUpdate) throws NamingException {
// Handle the empty name
if (dn.isEmpty()) {
return attrs;
}
// Parse string name into list of RDNs
List<Rdn> rdnList = (new LdapName(dn)).getRdns();
// Get leaf RDN
Rdn rdn = rdnList.get(rdnList.size() - 1);
Attributes nameAttrs = rdn.toAttributes();
// Add attributes of RDN to attrs if not already there
NamingEnumeration<? extends Attribute> enum_ = nameAttrs.getAll();
Attribute nameAttr;
while (enum_.hasMore()) {
nameAttr = enum_.next();
// If attrs already has the attribute, don't change or add to it
if (attrs.get(nameAttr.getID()) == null) {
/**
* When attrs.isCaseIgnored() is false, attrs.get() will
* return null when the case mis-matches for otherwise
* equal attrIDs.
* As the attrIDs' case is irrelevant for LDAP, ignore
* the case of attrIDs even when attrs.isCaseIgnored() is
* false. This is done by explicitly comparing the elements in
* the enumeration of IDs with their case ignored.
*/
if (!attrs.isCaseIgnored() &&
containsIgnoreCase(attrs.getIDs(), nameAttr.getID())) {
continue;
}
if (!directUpdate) {
attrs = (Attributes)attrs.clone();
directUpdate = true;
}
attrs.put(nameAttr);
}
}
return attrs;
}
private static boolean containsIgnoreCase(NamingEnumeration<String> enumStr,
String str) throws NamingException {
String strEntry;
while (enumStr.hasMore()) {
strEntry = enumStr.next();