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/*
* Copyright 2009-2017 UnboundID Corp.
* All Rights Reserved.
*/
/*
* Copyright (C) 2009-2017 UnboundID Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.sdk.examples;
import java.util.List;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import com.unboundid.ldap.sdk.BindRequest;
import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.CRAMMD5BindRequest;
import com.unboundid.ldap.sdk.DIGESTMD5BindRequest;
import com.unboundid.ldap.sdk.Filter;
import com.unboundid.ldap.sdk.LDAPConnection;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.PLAINBindRequest;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.ldap.sdk.SearchRequest;
import com.unboundid.ldap.sdk.SearchResult;
import com.unboundid.ldap.sdk.SearchScope;
import com.unboundid.ldap.sdk.SimpleBindRequest;
import com.unboundid.util.Debug;
import com.unboundid.util.FixedRateBarrier;
import com.unboundid.util.ResultCodeCounter;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ValuePattern;
/**
* This class provides a thread that may be used to repeatedly perform
* authentication processing.
*/
final class AuthRateThread
extends Thread
{
/**
* The authentication type value that will be used to indicate that simple
* authentication should be performed.
*/
private static final int AUTH_TYPE_SIMPLE = 0;
/**
* The authentication type value that will be used to indicate that CRAM-MD5
* authentication should be performed.
*/
private static final int AUTH_TYPE_CRAM_MD5 = 1;
/**
* The authentication type value that will be used to indicate that DIGEST-MD5
* authentication should be performed.
*/
private static final int AUTH_TYPE_DIGEST_MD5 = 2;
/**
* The authentication type value that will be used to indicate that PLAIN
* authentication should be performed.
*/
private static final int AUTH_TYPE_PLAIN = 3;
// Indicates whether a request has been made to stop running.
private final AtomicBoolean stopRequested;
// The counter used to track the number of searches performed.
private final AtomicLong authCounter;
// The value that will be updated with total duration of the searches.
private final AtomicLong authDurations;
// The counter used to track the number of errors encountered while searching.
private final AtomicLong errorCounter;
// The result code for this thread.
private final AtomicReference resultCode;
// The thread that is actually performing the searches.
private final AtomicReference authThread;
// A reference to the associated authrate tool.
private final AuthRate authRate;
// Indicates whether the authentication attempts should only include bind
// operations without the initial search.
private final boolean bindOnly;
// The set of controls to include in bind requests.
private final Control[] bindControls;
// The barrier that will be used to coordinate starting among all the threads.
private final CyclicBarrier startBarrier;
// The type of authentication to perform.
private final int authType;
// The connection to use for the binds.
private LDAPConnection bindConnection;
// The connection to use for the searches.
private LDAPConnection searchConnection;
// The result code counter to use for failed operations.
private final ResultCodeCounter rcCounter;
// The search request to generate.
private final SearchRequest searchRequest;
// The password to use to authenticate.
private final String userPassword;
// The value pattern to use for the base DNs.
private final ValuePattern baseDN;
//The value pattern to use for the filters.
private final ValuePattern filter;
// The barrier to use for controlling the rate of auths. null if no
// rate-limiting should be used.
private final FixedRateBarrier fixedRateBarrier;
/**
* Creates a new auth rate thread with the provided information.
*
* @param authRate A reference to the associated authrate tool.
* @param threadNumber The thread number for this thread.
* @param searchConnection The connection to use for the searches.
* @param bindConnection The connection to use for the binds.
* @param baseDN The value pattern to use for the base DNs.
* @param scope The scope to use for the searches.
* @param filter The value pattern for the filters.
* @param attributes The set of attributes to return.
* @param userPassword The password to use for the bind operations.
* @param bindOnly Indicates whether to only perform a bind without
* first performing the initial search to find the
* target user entry.
* @param authType The type of authentication to perform.
* @param searchControls The set of controls to include in search
* requests.
* @param bindControls The set of controls to include in bind requests.
* @param startBarrier A barrier used to coordinate starting between all
* of the threads.
* @param authCounter A value that will be used to keep track of the
* total number of authentications performed.
* @param authDurations A value that will be used to keep track of the
* total duration for all authentications.
* @param errorCounter A value that will be used to keep track of the
* number of errors encountered while searching.
* @param rcCounter The result code counter to use for keeping track
* of the result codes for failed operations.
* @param rateBarrier The barrier to use for controlling the rate of
* authorizations. {@code null} if no rate-limiting
* should be used.
*/
AuthRateThread(final AuthRate authRate, final int threadNumber,
final LDAPConnection searchConnection,
final LDAPConnection bindConnection, final ValuePattern baseDN,
final SearchScope scope, final ValuePattern filter,
final String[] attributes, final String userPassword,
final boolean bindOnly, final String authType,
final List searchControls,
final List bindControls,
final CyclicBarrier startBarrier,
final AtomicLong authCounter, final AtomicLong authDurations,
final AtomicLong errorCounter,
final ResultCodeCounter rcCounter,
final FixedRateBarrier rateBarrier)
{
setName("AuthRate Thread " + threadNumber);
setDaemon(true);
this.authRate = authRate;
this.searchConnection = searchConnection;
this.bindConnection = bindConnection;
this.baseDN = baseDN;
this.filter = filter;
this.userPassword = userPassword;
this.bindOnly = bindOnly;
this.authCounter = authCounter;
this.authDurations = authDurations;
this.errorCounter = errorCounter;
this.rcCounter = rcCounter;
this.startBarrier = startBarrier;
fixedRateBarrier = rateBarrier;
searchConnection.setConnectionName("search-" + threadNumber);
bindConnection.setConnectionName("bind-" + threadNumber);
if (authType.equalsIgnoreCase("cram-md5"))
{
this.authType = AUTH_TYPE_CRAM_MD5;
}
else if (authType.equalsIgnoreCase("digest-md5"))
{
this.authType = AUTH_TYPE_DIGEST_MD5;
}
else if (authType.equalsIgnoreCase("plain"))
{
this.authType = AUTH_TYPE_PLAIN;
}
else
{
this.authType = AUTH_TYPE_SIMPLE;
}
resultCode = new AtomicReference(null);
authThread = new AtomicReference(null);
stopRequested = new AtomicBoolean(false);
searchRequest = new SearchRequest("", scope,
Filter.createPresenceFilter("objectClass"), attributes);
searchRequest.setControls(searchControls);
if (bindControls.isEmpty())
{
this.bindControls = StaticUtils.NO_CONTROLS;
}
else
{
this.bindControls =
bindControls.toArray(new Control[bindControls.size()]);
}
}
/**
* Performs all search processing for this thread.
*/
@Override()
public void run()
{
authThread.set(currentThread());
try
{
startBarrier.await();
}
catch (Exception e)
{
Debug.debugException(e);
}
while (! stopRequested.get())
{
if (searchConnection == null)
{
try
{
searchConnection = authRate.getConnection();
}
catch (final LDAPException le)
{
Debug.debugException(le);
errorCounter.incrementAndGet();
final ResultCode rc = le.getResultCode();
rcCounter.increment(rc);
resultCode.compareAndSet(null, rc);
if (fixedRateBarrier != null)
{
fixedRateBarrier.await();
}
continue;
}
}
if (bindConnection == null)
{
try
{
bindConnection = authRate.getConnection();
}
catch (final LDAPException le)
{
Debug.debugException(le);
errorCounter.incrementAndGet();
final ResultCode rc = le.getResultCode();
rcCounter.increment(rc);
resultCode.compareAndSet(null, rc);
if (fixedRateBarrier != null)
{
fixedRateBarrier.await();
}
continue;
}
}
if (! bindOnly)
{
try
{
searchRequest.setBaseDN(baseDN.nextValue());
searchRequest.setFilter(filter.nextValue());
}
catch (LDAPException le)
{
Debug.debugException(le);
errorCounter.incrementAndGet();
final ResultCode rc = le.getResultCode();
rcCounter.increment(rc);
resultCode.compareAndSet(null, rc);
continue;
}
}
// If we're trying for a specific target rate, then we might need to
// wait until starting the next authorization.
if (fixedRateBarrier != null)
{
fixedRateBarrier.await();
}
final long startTime = System.nanoTime();
try
{
final String bindDN;
if (bindOnly)
{
bindDN = baseDN.nextValue();
}
else
{
final SearchResult r = searchConnection.search(searchRequest);
switch (r.getEntryCount())
{
case 0:
errorCounter.incrementAndGet();
rcCounter.increment(ResultCode.NO_RESULTS_RETURNED);
resultCode.compareAndSet(null, ResultCode.NO_RESULTS_RETURNED);
continue;
case 1:
// This is acceptable, and we can continue processing.
bindDN = r.getSearchEntries().get(0).getDN();
break;
default:
errorCounter.incrementAndGet();
rcCounter.increment(ResultCode.MORE_RESULTS_TO_RETURN);
resultCode.compareAndSet(null, ResultCode.MORE_RESULTS_TO_RETURN);
continue;
}
}
BindRequest bindRequest = null;
switch (authType)
{
case AUTH_TYPE_SIMPLE:
bindRequest =
new SimpleBindRequest(bindDN, userPassword, bindControls);
break;
case AUTH_TYPE_CRAM_MD5:
bindRequest = new CRAMMD5BindRequest("dn:" + bindDN, userPassword,
bindControls);
break;
case AUTH_TYPE_DIGEST_MD5:
bindRequest = new DIGESTMD5BindRequest("dn:" + bindDN, null,
userPassword, null, bindControls);
break;
case AUTH_TYPE_PLAIN:
bindRequest = new PLAINBindRequest("dn:" + bindDN, userPassword,
bindControls);
break;
}
bindConnection.bind(bindRequest);
}
catch (LDAPException le)
{
Debug.debugException(le);
errorCounter.incrementAndGet();
final ResultCode rc = le.getResultCode();
rcCounter.increment(rc);
resultCode.compareAndSet(null, rc);
if (! le.getResultCode().isConnectionUsable())
{
searchConnection.close();
searchConnection = null;
bindConnection.close();
bindConnection = null;
}
}
finally
{
authCounter.incrementAndGet();
authDurations.addAndGet(System.nanoTime() - startTime);
}
}
if (searchConnection != null)
{
searchConnection.close();
}
if (bindConnection != null)
{
bindConnection.close();
}
authThread.set(null);
}
/**
* Indicates that this thread should stop running.
*
* @return A result code that provides information about whether any errors
* were encountered during processing.
*/
public ResultCode stopRunning()
{
stopRequested.set(true);
if (fixedRateBarrier != null)
{
fixedRateBarrier.shutdownRequested();
}
final Thread t = authThread.get();
if (t != null)
{
try
{
t.join();
}
catch (final Exception e)
{
Debug.debugException(e);
if (e instanceof InterruptedException)
{
Thread.currentThread().interrupt();
}
}
}
resultCode.compareAndSet(null, ResultCode.SUCCESS);
return resultCode.get();
}
}
