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Commit 9c4294fb authored by Evan Prodromou's avatar Evan Prodromou
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include Auth_SASL from PEAR in extlib

parent 956b3ef4
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extlib/Auth/SASL.php 0 → 100755
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003 Richard Heyes |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: SASL.php 286825 2009-08-05 06:23:42Z cweiske $
/**
* Client implementation of various SASL mechanisms
*
* @author Richard Heyes <richard@php.net>
* @access public
* @version 1.0
* @package Auth_SASL
*/
require_once('PEAR.php');
class Auth_SASL
{
/**
* Factory class. Returns an object of the request
* type.
*
* @param string $type One of: Anonymous
* Plain
* CramMD5
* DigestMD5
* Types are not case sensitive
*/
function &factory($type)
{
switch (strtolower($type)) {
case 'anonymous':
$filename = 'Auth/SASL/Anonymous.php';
$classname = 'Auth_SASL_Anonymous';
break;
case 'login':
$filename = 'Auth/SASL/Login.php';
$classname = 'Auth_SASL_Login';
break;
case 'plain':
$filename = 'Auth/SASL/Plain.php';
$classname = 'Auth_SASL_Plain';
break;
case 'external':
$filename = 'Auth/SASL/External.php';
$classname = 'Auth_SASL_External';
break;
case 'crammd5':
$filename = 'Auth/SASL/CramMD5.php';
$classname = 'Auth_SASL_CramMD5';
break;
case 'digestmd5':
$filename = 'Auth/SASL/DigestMD5.php';
$classname = 'Auth_SASL_DigestMD5';
break;
default:
return PEAR::raiseError('Invalid SASL mechanism type');
break;
}
require_once($filename);
$obj = new $classname();
return $obj;
}
}
?>
extlib/Auth/SASL/Anonymous.php 0 → 100755
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003 Richard Heyes |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: Anonymous.php 286825 2009-08-05 06:23:42Z cweiske $
/**
* Implmentation of ANONYMOUS SASL mechanism
*
* @author Richard Heyes <richard@php.net>
* @access public
* @version 1.0
* @package Auth_SASL
*/
require_once('Auth/SASL/Common.php');
class Auth_SASL_Anonymous extends Auth_SASL_Common
{
/**
* Not much to do here except return the token supplied.
* No encoding, hashing or encryption takes place for this
* mechanism, simply one of:
* o An email address
* o An opaque string not containing "@" that can be interpreted
* by the sysadmin
* o Nothing
*
* We could have some logic here for the second option, but this
* would by no means create something interpretable.
*
* @param string $token Optional email address or string to provide
* as trace information.
* @return string The unaltered input token
*/
function getResponse($token = '')
{
return $token;
}
}
?>
\ No newline at end of file
extlib/Auth/SASL/Common.php 0 → 100755
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003 Richard Heyes |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: Common.php 286825 2009-08-05 06:23:42Z cweiske $
/**
* Common functionality to SASL mechanisms
*
* @author Richard Heyes <richard@php.net>
* @access public
* @version 1.0
* @package Auth_SASL
*/
class Auth_SASL_Common
{
/**
* Function which implements HMAC MD5 digest
*
* @param string $key The secret key
* @param string $data The data to protect
* @return string The HMAC MD5 digest
*/
function _HMAC_MD5($key, $data)
{
if (strlen($key) > 64) {
$key = pack('H32', md5($key));
}
if (strlen($key) < 64) {
$key = str_pad($key, 64, chr(0));
}
$k_ipad = substr($key, 0, 64) ^ str_repeat(chr(0x36), 64);
$k_opad = substr($key, 0, 64) ^ str_repeat(chr(0x5C), 64);
$inner = pack('H32', md5($k_ipad . $data));
$digest = md5($k_opad . $inner);
return $digest;
}
}
?>
extlib/Auth/SASL/CramMD5.php 0 → 100755
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003 Richard Heyes |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: CramMD5.php 286825 2009-08-05 06:23:42Z cweiske $
/**
* Implmentation of CRAM-MD5 SASL mechanism
*
* @author Richard Heyes <richard@php.net>
* @access public
* @version 1.0
* @package Auth_SASL
*/
require_once('Auth/SASL/Common.php');
class Auth_SASL_CramMD5 extends Auth_SASL_Common
{
/**
* Implements the CRAM-MD5 SASL mechanism
* This DOES NOT base64 encode the return value,
* you will need to do that yourself.
*
* @param string $user Username
* @param string $pass Password
* @param string $challenge The challenge supplied by the server.
* this should be already base64_decoded.
*
* @return string The string to pass back to the server, of the form
* "<user> <digest>". This is NOT base64_encoded.
*/
function getResponse($user, $pass, $challenge)
{
return $user . ' ' . $this->_HMAC_MD5($pass, $challenge);
}
}
?>
\ No newline at end of file
extlib/Auth/SASL/DigestMD5.php 0 → 100755
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003 Richard Heyes |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: DigestMD5.php 294702 2010-02-07 16:03:55Z cweiske $
/**
* Implmentation of DIGEST-MD5 SASL mechanism
*
* @author Richard Heyes <richard@php.net>
* @access public
* @version 1.0
* @package Auth_SASL
*/
require_once('Auth/SASL/Common.php');
class Auth_SASL_DigestMD5 extends Auth_SASL_Common
{
/**
* Provides the (main) client response for DIGEST-MD5
* requires a few extra parameters than the other
* mechanisms, which are unavoidable.
*
* @param string $authcid Authentication id (username)
* @param string $pass Password
* @param string $challenge The digest challenge sent by the server
* @param string $hostname The hostname of the machine you're connecting to
* @param string $service The servicename (eg. imap, pop, acap etc)
* @param string $authzid Authorization id (username to proxy as)
* @return string The digest response (NOT base64 encoded)
* @access public
*/
function getResponse($authcid, $pass, $challenge, $hostname, $service, $authzid = '')
{
$challenge = $this->_parseChallenge($challenge);
$authzid_string = '';
if ($authzid != '') {
$authzid_string = ',authzid="' . $authzid . '"';
}
if (!empty($challenge)) {
$cnonce = $this->_getCnonce();
$digest_uri = sprintf('%s/%s', $service, $hostname);
$response_value = $this->_getResponseValue($authcid, $pass, $challenge['realm'], $challenge['nonce'], $cnonce, $digest_uri, $authzid);
if ($challenge['realm']) {
return sprintf('username="%s",realm="%s"' . $authzid_string .
',nonce="%s",cnonce="%s",nc=00000001,qop=auth,digest-uri="%s",response=%s,maxbuf=%d', $authcid, $challenge['realm'], $challenge['nonce'], $cnonce, $digest_uri, $response_value, $challenge['maxbuf']);
} else {
return sprintf('username="%s"' . $authzid_string . ',nonce="%s",cnonce="%s",nc=00000001,qop=auth,digest-uri="%s",response=%s,maxbuf=%d', $authcid, $challenge['nonce'], $cnonce, $digest_uri, $response_value, $challenge['maxbuf']);
}
} else {
return PEAR::raiseError('Invalid digest challenge');
}
}
/**
* Parses and verifies the digest challenge*
*
* @param string $challenge The digest challenge
* @return array The parsed challenge as an assoc
* array in the form "directive => value".
* @access private
*/
function _parseChallenge($challenge)
{
$tokens = array();
while (preg_match('/^([a-z-]+)=("[^"]+(?<!\\\)"|[^,]+)/i', $challenge, $matches)) {
// Ignore these as per rfc2831
if ($matches[1] == 'opaque' OR $matches[1] == 'domain') {
$challenge = substr($challenge, strlen($matches[0]) + 1);
continue;
}
// Allowed multiple "realm" and "auth-param"
if (!empty($tokens[$matches[1]]) AND ($matches[1] == 'realm' OR $matches[1] == 'auth-param')) {
if (is_array($tokens[$matches[1]])) {
$tokens[$matches[1]][] = preg_replace('/^"(.*)"$/', '\\1', $matches[2]);
} else {
$tokens[$matches[1]] = array($tokens[$matches[1]], preg_replace('/^"(.*)"$/', '\\1', $matches[2]));
}
// Any other multiple instance = failure
} elseif (!empty($tokens[$matches[1]])) {
$tokens = array();
break;
} else {
$tokens[$matches[1]] = preg_replace('/^"(.*)"$/', '\\1', $matches[2]);
}
// Remove the just parsed directive from the challenge
$challenge = substr($challenge, strlen($matches[0]) + 1);
}
/**
* Defaults and required directives
*/
// Realm
if (empty($tokens['realm'])) {
$tokens['realm'] = "";
}
// Maxbuf
if (empty($tokens['maxbuf'])) {
$tokens['maxbuf'] = 65536;
}
// Required: nonce, algorithm
if (empty($tokens['nonce']) OR empty($tokens['algorithm'])) {
return array();
}
return $tokens;
}
/**
* Creates the response= part of the digest response
*
* @param string $authcid Authentication id (username)
* @param string $pass Password
* @param string $realm Realm as provided by the server
* @param string $nonce Nonce as provided by the server
* @param string $cnonce Client nonce
* @param string $digest_uri The digest-uri= value part of the response
* @param string $authzid Authorization id
* @return string The response= part of the digest response
* @access private
*/
function _getResponseValue($authcid, $pass, $realm, $nonce, $cnonce, $digest_uri, $authzid = '')
{
if ($authzid == '') {
$A1 = sprintf('%s:%s:%s', pack('H32', md5(sprintf('%s:%s:%s', $authcid, $realm, $pass))), $nonce, $cnonce);
} else {
$A1 = sprintf('%s:%s:%s:%s', pack('H32', md5(sprintf('%s:%s:%s', $authcid, $realm, $pass))), $nonce, $cnonce, $authzid);
}
$A2 = 'AUTHENTICATE:' . $digest_uri;
return md5(sprintf('%s:%s:00000001:%s:auth:%s', md5($A1), $nonce, $cnonce, md5($A2)));
}
/**
* Creates the client nonce for the response
*
* @return string The cnonce value
* @access private
*/
function _getCnonce()
{
if (@file_exists('/dev/urandom') && $fd = @fopen('/dev/urandom', 'r')) {
return base64_encode(fread($fd, 32));
} elseif (@file_exists('/dev/random') && $fd = @fopen('/dev/random', 'r')) {
return base64_encode(fread($fd, 32));
} else {
$str = '';
for ($i=0; $i<32; $i++) {
$str .= chr(mt_rand(0, 255));
}
return base64_encode($str);
}
}
}
?>
extlib/Auth/SASL/External.php 0 → 100644
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2008 Christoph Schulz |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Christoph Schulz <develop@kristov.de> |
// +-----------------------------------------------------------------------+
//
// $Id: External.php 286825 2009-08-05 06:23:42Z cweiske $
/**
* Implmentation of EXTERNAL SASL mechanism
*
* @author Christoph Schulz <develop@kristov.de>
* @access public
* @version 1.0.3
* @package Auth_SASL
*/
require_once('Auth/SASL/Common.php');
class Auth_SASL_External extends Auth_SASL_Common
{
/**
* Returns EXTERNAL response
*
* @param string $authcid Authentication id (username)
* @param string $pass Password
* @param string $authzid Autorization id
* @return string EXTERNAL Response
*/
function getResponse($authcid, $pass, $authzid = '')
{
return $authzid;
}
}
?>
extlib/Auth/SASL/Login.php 0 → 100755
View file @ 9c4294fb
<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2002-2003 Richard Heyes |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Richard Heyes <richard@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: Login.php 286825 2009-08-05 06:23:42Z cweiske $
/**
* This is technically not a SASL mechanism, however
* it's used by Net_Sieve, Net_Cyrus and potentially
* other protocols , so here is a good place to abstract
* it.
*
* @author Richard Heyes <richard@php.net>