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Upgrade from CAS 1.1.0RC6 to 1.1.2

This commit is contained in:
Craig Andrews 2010-08-30 16:53:32 -04:00
parent 7cd0706aef
commit 6b4607f073
5 changed files with 1243 additions and 1097 deletions
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1193
plugins/CasAuthentication/extlib/CAS.php
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File diff suppressed because it is too large Load Diff

28
plugins/CasAuthentication/extlib/CAS/PGTStorage/pgt-db.php
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@ -1,4 +1,32 @@
<?php
/*
* Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the ESUP-Portail consortium & the JA-SIG
* Collaborative nor the names of its contributors may 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.
*/
/**
* @file CAS/PGTStorage/pgt-db.php

27
plugins/CasAuthentication/extlib/CAS/PGTStorage/pgt-file.php
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@ -1,5 +1,32 @@
<?php
/*
* Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the ESUP-Portail consortium & the JA-SIG
* Collaborative nor the names of its contributors may 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.
*/
/**
* @file CAS/PGTStorage/pgt-file.php
* Basic class for PGT file storage

27
plugins/CasAuthentication/extlib/CAS/PGTStorage/pgt-main.php
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@ -1,5 +1,32 @@
<?php
/*
* Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the ESUP-Portail consortium & the JA-SIG
* Collaborative nor the names of its contributors may 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.
*/
/**
* @file CAS/PGTStorage/pgt-main.php
* Basic class for PGT storage

769
plugins/CasAuthentication/extlib/CAS/client.php
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@ -1,5 +1,34 @@
<?php
/*
* Copyright © 2003-2010, The ESUP-Portail consortium & the JA-SIG Collaborative.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the ESUP-Portail consortium & the JA-SIG
* Collaborative nor the names of its contributors may 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.
*/
/**
* @file CAS/client.php
* Main class of the phpCAS library
@ -411,24 +440,24 @@ class CASClient
return $this->_server['service_validate_url'].'?service='.urlencode($this->getURL());
}
/**
* This method is used to retrieve the SAML validating URL of the CAS server.
* @return a URL.
* @private
*/
* This method is used to retrieve the SAML validating URL of the CAS server.
* @return a URL.
* @private
*/
function getServerSamlValidateURL()
{
phpCAS::traceBegin();
// the URL is build only when needed
if ( empty($this->_server['saml_validate_url']) ) {
switch ($this->getServerVersion()) {
case SAML_VERSION_1_1:
$this->_server['saml_validate_url'] = $this->getServerBaseURL().'samlValidate';
break;
{
phpCAS::traceBegin();
// the URL is build only when needed
if ( empty($this->_server['saml_validate_url']) ) {
switch ($this->getServerVersion()) {
case SAML_VERSION_1_1:
$this->_server['saml_validate_url'] = $this->getServerBaseURL().'samlValidate';
break;
}
}
phpCAS::traceEnd($this->_server['saml_validate_url'].'?TARGET='.urlencode($this->getURL()));
return $this->_server['saml_validate_url'].'?TARGET='.urlencode($this->getURL());
}
}
phpCAS::traceEnd($this->_server['saml_validate_url'].'?TARGET='.urlencode($this->getURL()));
return $this->_server['saml_validate_url'].'?TARGET='.urlencode($this->getURL());
}
/**
* This method is used to retrieve the proxy validating URL of the CAS server.
* @return a URL.
@ -506,9 +535,9 @@ class CASClient
* This method is used to set additional user curl options.
*/
function setExtraCurlOption($key, $value)
{
{
$this->_curl_options[$key] = $value;
}
}
/**
* This method checks to see if the request is secured via HTTPS
@ -556,43 +585,19 @@ class CASClient
if (version_compare(PHP_VERSION,'5','>=') && ini_get('zend.ze1_compatibility_mode')) {
phpCAS::error('phpCAS cannot support zend.ze1_compatibility_mode. Sorry.');
}
$this->_start_session = $start_session;
if ($this->_start_session && session_id())
{
phpCAS :: error("Another session was started before phpcas. Either disable the session" .
" handling for phpcas in the client() call or modify your application to leave" .
" session handling to phpcas");
}
// skip Session Handling for logout requests and if don't want it'
if ($start_session && !$this->isLogoutRequest()) {
phpCAS::trace("Starting session handling");
// Check for Tickets from the CAS server
if (empty($_GET['ticket'])){
phpCAS::trace("No ticket found");
// only create a session if necessary
if (!isset($_SESSION)) {
phpCAS::trace("No session found, creating new session");
session_start();
}
}else{
phpCAS::trace("Ticket found");
// We have to copy any old data before renaming the session
if (isset($_SESSION)) {
phpCAS::trace("Old active session found, saving old data and destroying session");
$old_session = $_SESSION;
session_destroy();
}else{
session_start();
phpCAS::trace("Starting possible old session to copy variables");
$old_session = $_SESSION;
session_destroy();
}
// set up a new session, of name based on the ticket
$session_id = preg_replace('/[^\w]/','',$_GET['ticket']);
phpCAS::LOG("Session ID: " . $session_id);
session_id($session_id);
session_start();
// restore old session vars
if(isset($old_session)){
phpCAS::trace("Restoring old session vars");
$_SESSION = $old_session;
}
}
}else{
phpCAS::trace("Skipping session creation");
if ($start_session && !$this->isLogoutRequest())
{
phpCAS :: trace("Starting a new session");
session_start();
}
@ -667,12 +672,8 @@ class CASClient
}
break;
case CAS_VERSION_2_0: // check for a Service or Proxy Ticket
if (preg_match('/^ST-/', $ticket)) {
phpCAS::trace('ST \'' . $ticket . '\' found');
$this->setST($ticket);
unset ($_GET['ticket']);
} else if (preg_match('/^PT-/', $ticket)) {
phpCAS::trace('PT \'' . $ticket . '\' found');
if( preg_match('/^[SP]T-/',$ticket) ) {
phpCAS::trace('ST or PT \''.$ticket.'\' found');
$this->setPT($ticket);
unset($_GET['ticket']);
} else if ( !empty($ticket) ) {
@ -682,9 +683,9 @@ class CASClient
break;
case SAML_VERSION_1_1: // SAML just does Service Tickets
if( preg_match('/^[SP]T-/',$ticket) ) {
phpCAS::trace('SA \''.$ticket.'\' found');
$this->setSA($ticket);
unset($_GET['ticket']);
phpCAS::trace('SA \''.$ticket.'\' found');
$this->setSA($ticket);
unset($_GET['ticket']);
} else if ( !empty($ticket) ) {
//ill-formed ticket, halt
phpCAS::error('ill-formed ticket found in the URL (ticket=`'.htmlentities($ticket).'\')');
@ -697,6 +698,57 @@ class CASClient
/** @} */
// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
// XX XX
// XX Session Handling XX
// XX XX
// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
/**
* A variable to whether phpcas will use its own session handling. Default = true
* @hideinitializer
* @private
*/
var $_start_session = true;
function setStartSession($session)
{
$this->_start_session = session;
}
function getStartSession($session)
{
$this->_start_session = session;
}
/**
* Renaming the session
*/
function renameSession($ticket)
{
phpCAS::traceBegin();
if($this->_start_session){
if (!empty ($this->_user))
{
$old_session = $_SESSION;
session_destroy();
// set up a new session, of name based on the ticket
$session_id = preg_replace('/[^\w]/', '', $ticket);
phpCAS :: trace("Session ID: ".$session_id);
session_id($session_id);
session_start();
phpCAS :: trace("Restoring old session vars");
$_SESSION = $old_session;
} else
{
phpCAS :: error('Session should only be renamed after successfull authentication');
}
}else{
phpCAS :: trace("Skipping session rename since phpCAS is not handling the session.");
}
phpCAS::traceEnd();
}
// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
// XX XX
// XX AUTHENTICATION XX
@ -914,66 +966,73 @@ class CASClient
*/
function isAuthenticated()
{
phpCAS::traceBegin();
$res = FALSE;
$validate_url = '';
phpCAS::traceBegin();
$res = FALSE;
$validate_url = '';
if ( $this->wasPreviouslyAuthenticated() ) {
if ( $this->wasPreviouslyAuthenticated() ) {
if($this->hasST() || $this->hasPT() || $this->hasSA()){
// User has a additional ticket but was already authenticated
phpCAS::trace('ticket was present and will be discarded, use renewAuthenticate()');
header('Location: '.$this->getURL());
phpCAS::log( "Prepare redirect to remove ticket: ".$this->getURL() );
}else{
// the user has already (previously during the session) been
// authenticated, nothing to be done.
phpCAS::trace('user was already authenticated, no need to look for tickets');
}
$res = TRUE;
}
else {
if ( $this->hasST() ) {
// if a Service Ticket was given, validate it
phpCAS::trace('ST `'.$this->getST().'\' is present');
$this->validateST($validate_url,$text_response,$tree_response); // if it fails, it halts
phpCAS::trace('ST `'.$this->getST().'\' was validated');
if ( $this->isProxy() ) {
$this->validatePGT($validate_url,$text_response,$tree_response); // idem
phpCAS::trace('PGT `'.$this->getPGT().'\' was validated');
$_SESSION['phpCAS']['pgt'] = $this->getPGT();
}
$_SESSION['phpCAS']['user'] = $this->getUser();
$res = TRUE;
}
elseif ( $this->hasPT() ) {
// if a Proxy Ticket was given, validate it
phpCAS::trace('PT `'.$this->getPT().'\' is present');
$this->validatePT($validate_url,$text_response,$tree_response); // note: if it fails, it halts
phpCAS::trace('PT `'.$this->getPT().'\' was validated');
if ( $this->isProxy() ) {
$this->validatePGT($validate_url,$text_response,$tree_response); // idem
phpCAS::trace('PGT `'.$this->getPGT().'\' was validated');
$_SESSION['phpCAS']['pgt'] = $this->getPGT();
}
$_SESSION['phpCAS']['user'] = $this->getUser();
$res = TRUE;
}
elseif ( $this->hasSA() ) {
// if we have a SAML ticket, validate it.
phpCAS::trace('SA `'.$this->getSA().'\' is present');
$this->validateSA($validate_url,$text_response,$tree_response); // if it fails, it halts
phpCAS::trace('SA `'.$this->getSA().'\' was validated');
$_SESSION['phpCAS']['user'] = $this->getUser();
$_SESSION['phpCAS']['attributes'] = $this->getAttributes();
$res = TRUE;
}
else {
if ( $this->hasST() ) {
// if a Service Ticket was given, validate it
phpCAS::trace('ST `'.$this->getST().'\' is present');
$this->validateST($validate_url,$text_response,$tree_response); // if it fails, it halts
phpCAS::trace('ST `'.$this->getST().'\' was validated');
if ( $this->isProxy() ) {
$this->validatePGT($validate_url,$text_response,$tree_response); // idem
phpCAS::trace('PGT `'.$this->getPGT().'\' was validated');
$_SESSION['phpCAS']['pgt'] = $this->getPGT();
}
$_SESSION['phpCAS']['user'] = $this->getUser();
$res = TRUE;
}
elseif ( $this->hasPT() ) {
// if a Proxy Ticket was given, validate it
phpCAS::trace('PT `'.$this->getPT().'\' is present');
$this->validatePT($validate_url,$text_response,$tree_response); // note: if it fails, it halts
phpCAS::trace('PT `'.$this->getPT().'\' was validated');
if ( $this->isProxy() ) {
$this->validatePGT($validate_url,$text_response,$tree_response); // idem
phpCAS::trace('PGT `'.$this->getPGT().'\' was validated');
$_SESSION['phpCAS']['pgt'] = $this->getPGT();
}
$_SESSION['phpCAS']['user'] = $this->getUser();
$res = TRUE;
}
elseif ( $this->hasSA() ) {
// if we have a SAML ticket, validate it.
phpCAS::trace('SA `'.$this->getSA().'\' is present');
$this->validateSA($validate_url,$text_response,$tree_response); // if it fails, it halts
phpCAS::trace('SA `'.$this->getSA().'\' was validated');
$_SESSION['phpCAS']['user'] = $this->getUser();
$_SESSION['phpCAS']['attributes'] = $this->getAttributes();
$res = TRUE;
}
else {
// no ticket given, not authenticated
phpCAS::trace('no ticket found');
}
if ($res) {
// if called with a ticket parameter, we need to redirect to the app without the ticket so that CAS-ification is transparent to the browser (for later POSTS)
// most of the checks and errors should have been made now, so we're safe for redirect without masking error messages.
header('Location: '.$this->getURL());
phpCAS::log( "Prepare redirect to : ".$this->getURL() );
}
// no ticket given, not authenticated
phpCAS::trace('no ticket found');
}
if ($res) {
// if called with a ticket parameter, we need to redirect to the app without the ticket so that CAS-ification is transparent to the browser (for later POSTS)
// most of the checks and errors should have been made now, so we're safe for redirect without masking error messages.
header('Location: '.$this->getURL());
phpCAS::log( "Prepare redirect to : ".$this->getURL() );
}
}
phpCAS::traceEnd($res);
return $res;
phpCAS::traceEnd($res);
return $res;
}
/**
@ -1072,29 +1131,6 @@ class CASClient
exit();
}
// /**
// * This method is used to logout from CAS.
// * @param $url a URL that will be transmitted to the CAS server (to come back to when logged out)
// * @public
// */
// function logout($url = "") {
// phpCAS::traceBegin();
// $cas_url = $this->getServerLogoutURL();
// // v0.4.14 sebastien.gougeon at univ-rennes1.fr
// // header('Location: '.$cas_url);
// if ( $url != "" ) {
// // Adam Moore 1.0.0RC2
// $url = '?service=' . $url . '&url=' . $url;
// }
// header('Location: '.$cas_url . $url);
// session_unset();
// session_destroy();
// $this->printHTMLHeader($this->getString(CAS_STR_LOGOUT));
// printf('<p>'.$this->getString(CAS_STR_SHOULD_HAVE_BEEN_REDIRECTED).'</p>',$cas_url);
// $this->printHTMLFooter();
// phpCAS::traceExit();
// exit();
// }
/**
* This method is used to logout from CAS.
@ -1156,6 +1192,9 @@ class CASClient
phpCAS::traceEnd();
return;
}
if(!$this->_start_session){
phpCAS::log("phpCAS can't handle logout requests if it does not manage the session.");
}
phpCAS::log("Logout requested");
phpCAS::log("SAML REQUEST: ".$_POST['logoutRequest']);
if ($check_client) {
@ -1177,7 +1216,7 @@ class CASClient
}
if (!$allowed) {
phpCAS::error("Unauthorized logout request from client '".$client."'");
printf("Unauthorized!");
printf("Unauthorized!");
phpCAS::traceExit();
exit();
}
@ -1192,7 +1231,12 @@ class CASClient
$session_id = preg_replace('/[^\w]/','',$ticket2logout);
phpCAS::log("Session id: ".$session_id);
// fix New session ID
// destroy a possible application session created before phpcas
if(session_id()){
session_unset();
session_destroy();
}
// fix session ID
session_id($session_id);
$_COOKIE[session_name()]=$session_id;
$_GET[session_name()]=$session_id;
@ -1200,8 +1244,8 @@ class CASClient
// Overwrite session
session_start();
session_unset();
session_destroy();
printf("Disconnected!");
session_destroy();
printf("Disconnected!");
phpCAS::traceExit();
exit();
}
@ -1322,7 +1366,7 @@ class CASClient
* This method is used to validate a ST; halt on failure, and sets $validate_url,
* $text_reponse and $tree_response on success. These parameters are used later
* by CASClient::validatePGT() for CAS proxies.
*
* Used for all CAS 1.0 validations
* @param $validate_url the URL of the request to the CAS server.
* @param $text_response the response of the CAS server, as is (XML text).
* @param $tree_response the response of the CAS server, as a DOM XML tree.
@ -1338,7 +1382,7 @@ class CASClient
$validate_url = $this->getServerServiceValidateURL().'&ticket='.$this->getST();
if ( $this->isProxy() ) {
// pass the callback url for CAS proxies
$validate_url .= '&pgtUrl='.$this->getCallbackURL();
$validate_url .= '&pgtUrl='.urlencode($this->getCallbackURL());
}
// open and read the URL
@ -1434,156 +1478,160 @@ class CASClient
}
break;
}
$this->renameSession($this->getST());
// at this step, ST has been validated and $this->_user has been set,
phpCAS::traceEnd(TRUE);
return TRUE;
}
// ########################################################################
// SAML VALIDATION
// ########################################################################
/**
* @addtogroup internalBasic
* @{
*/
// ########################################################################
// SAML VALIDATION
// ########################################################################
/**
* @addtogroup internalBasic
* @{
*/
/**
* This method is used to validate a SAML TICKET; halt on failure, and sets $validate_url,
* $text_reponse and $tree_response on success. These parameters are used later
* by CASClient::validatePGT() for CAS proxies.
*
* @param $validate_url the URL of the request to the CAS server.
* @param $text_response the response of the CAS server, as is (XML text).
* @param $tree_response the response of the CAS server, as a DOM XML tree.
*
* @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
*
* @private
*/
function validateSA($validate_url,&$text_response,&$tree_response)
{
phpCAS::traceBegin();
/**
* This method is used to validate a SAML TICKET; halt on failure, and sets $validate_url,
* $text_reponse and $tree_response on success. These parameters are used later
* by CASClient::validatePGT() for CAS proxies.
*
* @param $validate_url the URL of the request to the CAS server.
* @param $text_response the response of the CAS server, as is (XML text).
* @param $tree_response the response of the CAS server, as a DOM XML tree.
*
* @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
*
* @private
*/
function validateSA($validate_url,&$text_response,&$tree_response)
{
phpCAS::traceBegin();
// build the URL to validate the ticket
$validate_url = $this->getServerSamlValidateURL();
// build the URL to validate the ticket
$validate_url = $this->getServerSamlValidateURL();
// open and read the URL
if ( !$this->readURL($validate_url,''/*cookies*/,$headers,$text_response,$err_msg) ) {
phpCAS::trace('could not open URL \''.$validate_url.'\' to validate ('.$err_msg.')');
$this->authError('SA not validated', $validate_url, TRUE/*$no_response*/);
}
// open and read the URL
if ( !$this->readURL($validate_url,''/*cookies*/,$headers,$text_response,$err_msg) ) {
phpCAS::trace('could not open URL \''.$validate_url.'\' to validate ('.$err_msg.')');
$this->authError('SA not validated', $validate_url, TRUE/*$no_response*/);
}
phpCAS::trace('server version: '.$this->getServerVersion());
phpCAS::trace('server version: '.$this->getServerVersion());
// analyze the result depending on the version
switch ($this->getServerVersion()) {
case SAML_VERSION_1_1:
// analyze the result depending on the version
switch ($this->getServerVersion()) {
case SAML_VERSION_1_1:
// read the response of the CAS server into a DOM object
if ( !($dom = domxml_open_mem($text_response))) {
phpCAS::trace('domxml_open_mem() failed');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
// read the root node of the XML tree
if ( !($tree_response = $dom->document_element()) ) {
phpCAS::trace('document_element() failed');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
// insure that tag name is 'Envelope'
if ( $tree_response->node_name() != 'Envelope' ) {
phpCAS::trace('bad XML root node (should be `Envelope\' instead of `'.$tree_response->node_name().'\'');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
// check for the NameIdentifier tag in the SAML response
if ( sizeof($success_elements = $tree_response->get_elements_by_tagname("NameIdentifier")) != 0) {
phpCAS::trace('NameIdentifier found');
$user = trim($success_elements[0]->get_content());
phpCAS::trace('user = `'.$user.'`');
$this->setUser($user);
$this->setSessionAttributes($text_response);
} else {
phpCAS::trace('no <NameIdentifier> tag found in SAML payload');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
break;
}
// read the response of the CAS server into a DOM object
if ( !($dom = domxml_open_mem($text_response))) {
phpCAS::trace('domxml_open_mem() failed');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
// read the root node of the XML tree
if ( !($tree_response = $dom->document_element()) ) {
phpCAS::trace('document_element() failed');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
// insure that tag name is 'Envelope'
if ( $tree_response->node_name() != 'Envelope' ) {
phpCAS::trace('bad XML root node (should be `Envelope\' instead of `'.$tree_response->node_name().'\'');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
// check for the NameIdentifier tag in the SAML response
if ( sizeof($success_elements = $tree_response->get_elements_by_tagname("NameIdentifier")) != 0) {
phpCAS::trace('NameIdentifier found');
$user = trim($success_elements[0]->get_content());
phpCAS::trace('user = `'.$user.'`');
$this->setUser($user);
$this->setSessionAttributes($text_response);
} else {
phpCAS::trace('no <NameIdentifier> tag found in SAML payload');
$this->authError('SA not validated',
$validate_url,
FALSE/*$no_response*/,
TRUE/*$bad_response*/,
$text_response);
}
break;
}
$this->renameSession($this->getSA());
// at this step, ST has been validated and $this->_user has been set,
phpCAS::traceEnd(TRUE);
return TRUE;
}
// at this step, ST has been validated and $this->_user has been set,
phpCAS::traceEnd(TRUE);
return TRUE;
}
/**
* This method will parse the DOM and pull out the attributes from the SAML
* payload and put them into an array, then put the array into the session.
*
* @param $text_response the SAML payload.
* @return bool TRUE when successfull and FALSE if no attributes a found
*
* @private
*/
function setSessionAttributes($text_response)
{
phpCAS::traceBegin();
/**
* This method will parse the DOM and pull out the attributes from the SAML
* payload and put them into an array, then put the array into the session.
*
* @param $text_response the SAML payload.
* @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
*
* @private
*/
function setSessionAttributes($text_response)
{
phpCAS::traceBegin();
$result = FALSE;
$result = FALSE;
if (isset($_SESSION[SAML_ATTRIBUTES])) {
phpCAS::trace("session attrs already set."); //testbml - do we care?
}
if (isset($_SESSION[SAML_ATTRIBUTES])) {
phpCAS::trace("session attrs already set."); //testbml - do we care?
}
$attr_array = array();
$attr_array = array();
if (($dom = domxml_open_mem($text_response))) {
$xPath = $dom->xpath_new_context();
$xPath->xpath_register_ns('samlp', 'urn:oasis:names:tc:SAML:1.0:protocol');
$xPath->xpath_register_ns('saml', 'urn:oasis:names:tc:SAML:1.0:assertion');
$nodelist = $xPath->xpath_eval("//saml:Attribute");
$attrs = $nodelist->nodeset;
phpCAS::trace($text_response);
foreach($attrs as $attr){
$xres = $xPath->xpath_eval("saml:AttributeValue", $attr);
$name = $attr->get_attribute("AttributeName");
$value_array = array();
foreach($xres->nodeset as $node){
$value_array[] = $node->get_content();
}
phpCAS::trace("* " . $name . "=" . $value_array);
$attr_array[$name] = $value_array;
}
$_SESSION[SAML_ATTRIBUTES] = $attr_array;
// UGent addition...
foreach($attr_array as $attr_key => $attr_value) {
if(count($attr_value) > 1) {
$this->_attributes[$attr_key] = $attr_value;
}
else {
$this->_attributes[$attr_key] = $attr_value[0];
}
}
$result = TRUE;
}
phpCAS::traceEnd($result);
return $result;
}
if (($dom = domxml_open_mem($text_response))) {
$xPath = $dom->xpath_new_context();
$xPath->xpath_register_ns('samlp', 'urn:oasis:names:tc:SAML:1.0:protocol');
$xPath->xpath_register_ns('saml', 'urn:oasis:names:tc:SAML:1.0:assertion');
$nodelist = $xPath->xpath_eval("//saml:Attribute");
if($nodelist){
$attrs = $nodelist->nodeset;
foreach($attrs as $attr){
$xres = $xPath->xpath_eval("saml:AttributeValue", $attr);
$name = $attr->get_attribute("AttributeName");
$value_array = array();
foreach($xres->nodeset as $node){
$value_array[] = $node->get_content();
}
$attr_array[$name] = $value_array;
}
$_SESSION[SAML_ATTRIBUTES] = $attr_array;
// UGent addition...
foreach($attr_array as $attr_key => $attr_value) {
if(count($attr_value) > 1) {
$this->_attributes[$attr_key] = $attr_value;
phpCAS::trace("* " . $attr_key . "=" . $attr_value);
}
else {
$this->_attributes[$attr_key] = $attr_value[0];
phpCAS::trace("* " . $attr_key . "=" . $attr_value[0]);
}
}
$result = TRUE;
}else{
phpCAS::trace("SAML Attributes are empty");
$result = FALSE;
}
}
phpCAS::traceEnd($result);
return $result;
}
/** @} */
@ -2150,21 +2198,21 @@ class CASClient
if ( is_array($cookies) ) {
curl_setopt($ch,CURLOPT_COOKIE,implode(';',$cookies));
}
// add extra stuff if SAML
if ($this->hasSA()) {
$more_headers = array ("soapaction: http://www.oasis-open.org/committees/security",
"cache-control: no-cache",
"pragma: no-cache",
"accept: text/xml",
"connection: keep-alive",
"content-type: text/xml");
// add extra stuff if SAML
if ($this->hasSA()) {
$more_headers = array ("soapaction: http://www.oasis-open.org/committees/security",
"cache-control: no-cache",
"pragma: no-cache",
"accept: text/xml",
"connection: keep-alive",
"content-type: text/xml");
curl_setopt($ch, CURLOPT_HTTPHEADER, $more_headers);
curl_setopt($ch, CURLOPT_POST, 1);
$data = $this->buildSAMLPayload();
//phpCAS::trace('SAML Payload: '.print_r($data, TRUE));
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($ch, CURLOPT_HTTPHEADER, $more_headers);
curl_setopt($ch, CURLOPT_POST, 1);
$data = $this->buildSAMLPayload();
//phpCAS::trace('SAML Payload: '.print_r($data, TRUE));
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
// perform the query
$buf = curl_exec ($ch);
//phpCAS::trace('CURL: Call completed. Response body is: \''.$buf.'\'');
@ -2185,38 +2233,38 @@ class CASClient
phpCAS::traceEnd($res);
return $res;
}
}
/**
* This method is used to build the SAML POST body sent to /samlValidate URL.
*
* @return the SOAP-encased SAMLP artifact (the ticket).
*
* @private
*/
function buildSAMLPayload()
{
phpCAS::traceBegin();
/**
* This method is used to build the SAML POST body sent to /samlValidate URL.
*
* @return the SOAP-encased SAMLP artifact (the ticket).
*
* @private
*/
function buildSAMLPayload()
{
phpCAS::traceBegin();
//get the ticket
$sa = $this->getSA();
//phpCAS::trace("SA: ".$sa);
//get the ticket
$sa = $this->getSA();
//phpCAS::trace("SA: ".$sa);
$body=SAML_SOAP_ENV.SAML_SOAP_BODY.SAMLP_REQUEST.SAML_ASSERTION_ARTIFACT.$sa.SAML_ASSERTION_ARTIFACT_CLOSE.SAMLP_REQUEST_CLOSE.SAML_SOAP_BODY_CLOSE.SAML_SOAP_ENV_CLOSE;
$body=SAML_SOAP_ENV.SAML_SOAP_BODY.SAMLP_REQUEST.SAML_ASSERTION_ARTIFACT.$sa.SAML_ASSERTION_ARTIFACT_CLOSE.SAMLP_REQUEST_CLOSE.SAML_SOAP_BODY_CLOSE.SAML_SOAP_ENV_CLOSE;
phpCAS::traceEnd($body);
return ($body);
}
phpCAS::traceEnd($body);
return ($body);
}
/**
* This method is the callback used by readURL method to request HTTP headers.
*/
var $_curl_headers = array();
function _curl_read_headers($ch, $header)
{
{
$this->_curl_headers[] = $header;
return strlen($header);
}
}
/**
* This method is used to access an HTTP[S] service.
@ -2236,6 +2284,7 @@ class CASClient
function serviceWeb($url,&$err_code,&$output)
{
phpCAS::traceBegin();
$cookies = array();
// at first retrieve a PT
$pt = $this->retrievePT($url,$err_code,$output);
@ -2248,7 +2297,8 @@ class CASClient
$res = FALSE;
} else {
// add cookies if necessary
if ( is_array($_SESSION['phpCAS']['services'][$url]['cookies']) ) {
if ( isset($_SESSION['phpCAS']['services'][$url]['cookies']) &&
is_array($_SESSION['phpCAS']['services'][$url]['cookies']) ) {
foreach ( $_SESSION['phpCAS']['services'][$url]['cookies'] as $name => $val ) {
$cookies[] = $name.'='.$val;
}
@ -2400,28 +2450,28 @@ class CASClient
function hasPT()
{ return !empty($this->_pt); }
/**
* This method returns the SAML Ticket provided in the URL of the request.
* @return The SAML ticket.
* @private
*/
function getSA()
{ return 'ST'.substr($this->_sa, 2); }
* This method returns the SAML Ticket provided in the URL of the request.
* @return The SAML ticket.
* @private
*/
function getSA()
{ return 'ST'.substr($this->_sa, 2); }
/**
* This method stores the SAML Ticket.
* @param $sa The SAML Ticket.
* @private
*/
function setSA($sa)
{ $this->_sa = $sa; }
/**
* This method stores the SAML Ticket.
* @param $sa The SAML Ticket.
* @private
*/
function setSA($sa)
{ $this->_sa = $sa; }
/**
* This method tells if a SAML Ticket was stored.
* @return TRUE if a SAML Ticket has been stored.
* @private
*/
function hasSA()
{ return !empty($this->_sa); }
/**
* This method tells if a SAML Ticket was stored.
* @return TRUE if a SAML Ticket has been stored.
* @private
*/
function hasSA()
{ return !empty($this->_sa); }
/** @} */
// ########################################################################
@ -2433,8 +2483,8 @@ class CASClient
*/
/**
* This method is used to validate a PT; halt on failure
*
* This method is used to validate a ST or PT; halt on failure
* Used for all CAS 2.0 validations
* @return bool TRUE when successfull, halt otherwise by calling CASClient::authError().
*
* @private
@ -2447,7 +2497,7 @@ class CASClient
if ( $this->isProxy() ) {
// pass the callback url for CAS proxies
$validate_url .= '&pgtUrl='.$this->getCallbackURL();
$validate_url .= '&pgtUrl='.urlencode($this->getCallbackURL());
}
// open and read the URL
@ -2514,6 +2564,7 @@ class CASClient
$text_response);
}
$this->renameSession($this->getPT());
// at this step, PT has been validated and $this->_user has been set,
phpCAS::traceEnd(TRUE);
@ -2586,25 +2637,43 @@ class CASClient
}
}
$php_is_for_sissies = split("\?", $_SERVER['REQUEST_URI'], 2);
$final_uri .= $php_is_for_sissies[0];
if(sizeof($php_is_for_sissies) > 1){
$cgi_params = '?' . $php_is_for_sissies[1];
} else {
$cgi_params = '?';
$request_uri = explode('?', $_SERVER['REQUEST_URI'], 2);
$final_uri .= $request_uri[0];
if (isset($request_uri[1]) && $request_uri[1])
{
$query_string = $this->removeParameterFromQueryString('ticket', $request_uri[1]);
// If the query string still has anything left, append it to the final URI
if ($query_string !== '')
$final_uri .= "?$query_string";
}
// remove the ticket if present in the CGI parameters
$cgi_params = preg_replace('/&ticket=[^&]*/','',$cgi_params);
$cgi_params = preg_replace('/\?ticket=[^&;]*/','?',$cgi_params);
$cgi_params = preg_replace('/\?%26/','?',$cgi_params);
$cgi_params = preg_replace('/\?&/','?',$cgi_params);
$cgi_params = preg_replace('/\?$/','',$cgi_params);
$final_uri .= $cgi_params;
phpCAS::trace("Final URI: $final_uri");
$this->setURL($final_uri);
}
phpCAS::traceEnd($this->_url);
return $this->_url;
}
}
/**
* Removes a parameter from a query string
*
* @param string $parameterName
* @param string $queryString
* @return string
*
* @link http://stackoverflow.com/questions/1842681/regular-expression-to-remove-one-parameter-from-query-string
*/
function removeParameterFromQueryString($parameterName, $queryString)
{
$parameterName = preg_quote($parameterName);
return preg_replace("/&$parameterName(=[^&]*)?|^$parameterName(=[^&]*)?&?/", '', $queryString);
}
/**
* This method sets the URL of the current request
@ -2641,7 +2710,7 @@ class CASClient
phpCAS::traceBegin();
$this->printHTMLHeader($this->getString(CAS_STR_AUTHENTICATION_FAILED));
printf($this->getString(CAS_STR_YOU_WERE_NOT_AUTHENTICATED),$this->getURL(),$_SERVER['SERVER_ADMIN']);
printf($this->getString(CAS_STR_YOU_WERE_NOT_AUTHENTICATED),htmlentities($this->getURL()),$_SERVER['SERVER_ADMIN']);
phpCAS::trace('CAS URL: '.$cas_url);
phpCAS::trace('Authentication failure: '.$failure);
if ( $no_response ) {