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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
/**
* Storage driver for use against a SAP system using the SAPRFC PHP extension.
*
* Requires the SAPRFC ext available at http://saprfc.sourceforge.net/
*
* PHP version 5
*
* LICENSE: This source file is subject to version 3.01 of the PHP license
* that is available through the world-wide-web at the following URI:
* http://www.php.net/license/3_01.txt. If you did not receive a copy of
* the PHP License and are unable to obtain it through the web, please
* send a note to license@php.net so we can mail you a copy immediately.
*
* @category Authentication
* @package Auth
* @author Stoyan Stefanov <ssttoo@gmail.com>
* @author Adam Ashley <aashley@php.net>
* @copyright 2001-2006 The PHP Group
* @license http://www.php.net/license/3_01.txt PHP License 3.01
* @version CVS: $Id: SAP.php 302205 2010-08-14 14:08:08Z clockwerx $
* @link http://pear.php.net/package/Auth
* @since File available since Release 1.4.0
*/
/**
* Include Auth_Container base class
*/
require_once 'Auth/Container.php';
/**
* Include PEAR for error handling
*/
require_once 'PEAR.php';
/**
* Performs authentication against a SAP system using the SAPRFC PHP extension.
*
* When the option GETSSO2 is TRUE (default)
* the Single Sign-On (SSO) ticket is retrieved
* and stored as an Auth attribute called 'sap'
* in order to be reused for consecutive connections.
*
* @category Authentication
* @package Auth
* @author Stoyan Stefanov <ssttoo@gmail.com>
* @author Adam Ashley <aashley@php.net>
* @copyright 2001-2006 The PHP Group
* @license http://www.php.net/license/3_01.txt PHP License 3.01
* @version Release: @package_version@ File: $Revision: 302205 $
* @since Class available since Release 1.4.0
*/
class Auth_Container_SAP extends Auth_Container {
// {{{ properties
/**
* @var array Default options
*/
var $options = array(
'CLIENT' => '000',
'LANG' => 'EN',
'GETSSO2' => true,
);
// }}}
// {{{ Auth_Container_SAP()
/**
* Class constructor. Checks that required options
* are present and that the SAPRFC extension is loaded
*
* Options that can be passed and their defaults:
* <pre>
* array(
* 'ASHOST' => "",
* 'SYSNR' => "",
* 'CLIENT' => "000",
* 'GWHOST' =>"",
* 'GWSERV' =>"",
* 'MSHOST' =>"",
* 'R3NAME' =>"",
* 'GROUP' =>"",
* 'LANG' =>"EN",
* 'TRACE' =>"",
* 'GETSSO2'=> true
* )
* </pre>
*
* @param array array of options.
* @return void
*/
function Auth_Container_SAP($options)
{
$saprfc_loaded = PEAR::loadExtension('saprfc');
if (!$saprfc_loaded) {
return PEAR::raiseError('Cannot use SAP authentication, '
.'SAPRFC extension not loaded!');
}
if (empty($options['R3NAME']) && empty($options['ASHOST'])) {
return PEAR::raiseError('R3NAME or ASHOST required for authentication');
}
$this->options = array_merge($this->options, $options);
}
// }}}
// {{{ fetchData()
/**
* Performs username and password check
*
* @param string Username
* @param string Password
* @return boolean TRUE on success (valid user), FALSE otherwise
*/
function fetchData($username, $password)
{
$this->log('Auth_Container_SAP::fetchData() called.', AUTH_LOG_DEBUG);
$connection_options = $this->options;
$connection_options['USER'] = $username;
$connection_options['PASSWD'] = $password;
$rfc = saprfc_open($connection_options);
if (!$rfc) {
$message = "Couldn't connect to the SAP system.";
$error = $this->getError();
if ($error['message']) {
$message .= ': ' . $error['message'];
}
PEAR::raiseError($message, null, null, null, @$error['all']);
return false;
} else {
if (!empty($this->options['GETSSO2'])) {
$this->log('Attempting to retrieve SSO2 ticket.', AUTH_LOG_DEBUG);
if ($ticket = @saprfc_get_ticket($rfc)) {
$this->options['MYSAPSSO2'] = $ticket;
unset($this->options['GETSSO2']);
$this->_auth_obj->setAuthData('sap', $this->options);
} else {
PEAR::raiseError("SSO ticket retrieval failed");
}
}
@saprfc_close($rfc);
return true;
}
}
// }}}
// {{{ getError()
/**
* Retrieves the last error from the SAP connection
* and returns it as an array.
*
* @return array Array of error information
*/
function getError()
{
$error = array();
$sap_error = saprfc_error();
if (empty($err)) {
return $error;
}
$err = explode("n", $sap_error);
foreach ($err AS $line) {
$item = explode(':', $line);
$error[strtolower(trim($item[0]))] = trim($item[1]);
}
$error['all'] = $sap_error;
return $error;
}
// }}}
}
?>
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