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Merge pull request #89 from alsvartr/auth_radius 

initial commit
This commit is contained in:
Andrew Dolgov 2013-03-28 01:13:54 -07:00
parent 0bb5833beb cb630176cf
commit 2751718009
4 changed files with 1755 additions and 0 deletions
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<?php
/*
Tiny Tiny RSS plugin for RADIUS authentication
@author alsvartr (me@taughtbycats.ru)
@copyright GPL2
Requires php radius class (comes with plugin)
Put the following options in config.php:
define('RADIUS_AUTH_SERVER', 'radius_server_address');
define('RADIUS_AUTH_SECRET', 'radius_shared_secret');
Optional:
//Default: 1812
define('RADIUS_AUTH_PORT', radius_auth_port);
*/
class Auth_Radius extends Plugin implements IAuthModule {
private $link;
private $host;
private $base;
private $debug;
function about() {
return array(0.1,
"Authenticates against an RADIUS server (configured in config.php)",
"alsvartr",
true);
}
function init($host) {
$this->link = $host->get_link();
$this->host = $host;
$this->base = new Auth_Base($this->link);
$this->debug = FALSE;
$host->add_hook($host::HOOK_AUTH_USER, $this);
}
private function _log($msg) {
if ($this->debug) trigger_error($msg, E_USER_WARNING);
}
function authenticate($login, $password) {
if (!require_once('php-radius/radius.php')) {
$this->_log('Cannot require radius class files!');
return FALSE;
}
if ($login && $password) {
if ( (!defined('RADIUS_AUTH_SERVER')) OR (!defined('RADIUS_AUTH_SECRET')) ) {
$this->_log('Could not parse RADIUS_AUTH_ options from config.php!');
return FALSE;
} elseif (!defined('RADIUS_AUTH_PORT'))
define('RADIUS_AUTH_PORT', 1812);
$radius = new Radius(RADIUS_AUTH_SERVER, RADIUS_AUTH_SECRET, '', 5, RADIUS_AUTH_PORT);
$radius->SetNasIpAddress('1.2.3.4');
$auth = $radius->AccessRequest($login, $password);
if ($auth)
return $this->base->auto_create_user($login);
else {
$this->_log('Radius authentication rejected!');
return FALSE;
}
}
return FALSE;
}
}
?>

674
plugins/auth_radius/php-radius/COPYING Normal file
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GNU GENERAL PUBLIC LICENSE
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GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
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840
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<?php
/*********************************************************************
*
* Pure PHP radius class
*
* This Radius class is a radius client implementation in pure PHP
* following the RFC 2865 rules (http://www.ietf.org/rfc/rfc2865.txt)
*
* This class works with at least the following RADIUS servers:
* - Authenex Strong Authentication System (ASAS) with two-factor authentication
* - FreeRADIUS, a free Radius server implementation for Linux and *nix environments
* - Microsoft Radius server IAS
* - Mideye RADIUS server (http://www.mideye.com)
* - Radl, a free Radius server for Windows
* - RSA SecurID
* - VASCO Middleware 3.0 server
* - WinRadius, Windows Radius server (free for 5 users)
* - ZyXEL ZyWALL OTP (Authenex ASAS branded by ZyXEL, cheaper)
*
*
* LICENCE
*
* Copyright (c) 2008, SysCo systemes de communication sa
* SysCo (tm) is a trademark of SysCo systemes de communication sa
* (http://www.sysco.ch/)
* All rights reserved.
*
* This file is part of the Pure PHP radius class
*
* Pure PHP radius class is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* Pure PHP radius class 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Pure PHP radius class.
* If not, see <http://www.gnu.org/licenses/>.
*
*
* @author: SysCo/al
* @since CreationDate: 2008-01-04
* @copyright (c) 2008 by SysCo systemes de communication sa
* @version $LastChangedRevision: 1.2.2 $
* @version $LastChangedDate: 2009-01-05 $
* @version $LastChangedBy: SysCo/al $
* @link $HeadURL: radius.class.php $
* @link http://developer.sysco.ch/php/
* @link developer@sysco.ch
* Language: PHP 4.0.7 or higher
*
*
* Usage
*
* require_once('radius.class.php');
* $radius = new Radius($ip_radius_server = 'radius_server_ip_address', $shared_secret = 'radius_shared_secret'[, $radius_suffix = 'optional_radius_suffix'[, $udp_timeout = udp_timeout_in_seconds[, $authentication_port = 1812]]]);
* $result = $radius->Access_Request($username = 'username', $password = 'password'[, $udp_timeout = udp_timeout_in_seconds]);
*
*
* Examples
*
* Example 1
* <?php
* require_once('radius.class.php');
* $radius = new Radius('127.0.0.1', 'secret');
* $radius->SetNasIpAddress('1.2.3.4'); // Needed for some devices, and not auto_detected if PHP not runned through a web server
* if ($radius->AccessRequest('user', 'pass'))
* {
* echo "Authentication accepted.";
* }
* else
* {
* echo "Authentication rejected.";
* }
* ?>
*
* Example 2
* <?php
* require_once('radius.class.php');
* $radius = new Radius('127.0.0.1', 'secret');
* $radius->SetNasPort(0);
* $radius->SetNasIpAddress('1.2.3.4'); // Needed for some devices, and not auto_detected if PHP not runned through a web server
* if ($radius->AccessRequest('user', 'pass'))
* {
* echo "Authentication accepted.";
* echo "<br />";
* }
* else
* {
* echo "Authentication rejected.";
* echo "<br />";
* }
* echo $radius->GetReadableReceivedAttributes();
* ?>
*
*
* External file needed
*
* none.
*
*
* External file created
*
* none.
*
*
* Special issues
*
* - Sockets support must be enabled.
* * In Linux and *nix environments, the extension is enabled at
* compile time using the --enable-sockets configure option
* * In Windows, PHP Sockets can be activated by un-commenting
* extension=php_sockets.dll in php.ini
*
*
* Other related ressources
*
* FreeRADIUS, a free Radius server implementation for Linux and *nix environments:
* http://www.freeradius.org/
*
* WinRadius, Windows Radius server (free for 5 users):
* http://www.itconsult2000.com/en/product/WinRadius.zip
*
* Radl, a free Radius server for Windows:
* http://www.loriotpro.com/Products/RadiusServer/FreeRadiusServer_EN.php
*
* DOS command line Radius client:
* http://www.itconsult2000.com/en/product/WinRadiusClient.zip
*
*
* Users feedbacks and comments
*
* 2008-07-02 Pim Koeman/Parantion
*
* When using a radius connection behind a linux iptables firewall
* allow port 1812 and 1813 with udp protocol
*
* IPTABLES EXAMPLE (command line):
* iptables -A AlwaysACCEPT -p udp --dport 1812 -j ACCEPT
* iptables -A AlwaysACCEPT -p udp --dport 1813 -j ACCEPT
*
* or put the lines in /etc/sysconfig/iptables (red-hat type systems (fedora, centos, rhel etc.)
* -A AlwaysACCEPT -p udp --dport 1812 -j ACCEPT
* -A AlwaysACCEPT -p udp --dport 1813 -j ACCEPT
*
*
* Change Log
*
* 2009-01-05 1.2.2 SysCo/al Added Robert Svensson feedback, Mideye RADIUS server is supported
* 2008-11-11 1.2.1 SysCo/al Added Carlo Ferrari resolution in examples (add NAS IP Address for a VASCO Middleware server)
* 2008-07-07 1.2 SysCo/al Added Pim Koeman (Parantion) contribution
* - comments concerning using radius behind a linux iptables firewall
* Added Jon Bright (tick Trading Software AG) contribution
* - false octal encoding with 0xx indexes (indexes are now rewritten in xx only)
* - challenge/response support for the RSA SecurID New-PIN mode
* Added GetRadiusPacketInfo() method
* Added GetAttributesInfo() method
* Added DecodeVendorSpecificContent() (to answer Raul Carvalho's question)
* Added Decoded Vendor Specific Content in debug messages
* 2008-02-04 1.1 SysCo/al Typo error for the udp_timeout parameter (line 256 in the version 1.0)
* 2008-01-07 1.0 SysCo/al Initial release
*
*********************************************************************/
/*********************************************************************
*
* Radius
* Pure PHP radius class
*
* Creation 2008-01-04
* Update 2009-01-05
* @package radius
* @version v.1.2.2
* @author SysCo/al
*
*********************************************************************/
class Radius
{
var $_ip_radius_server; // Radius server IP address
var $_shared_secret; // Shared secret with the radius server
var $_radius_suffix; // Radius suffix (default is '');
var $_udp_timeout; // Timeout of the UDP connection in seconds (default value is 5)
var $_authentication_port; // Authentication port (default value is 1812)
var $_accounting_port; // Accouting port (default value is 1813)
var $_nas_ip_address; // NAS IP address
var $_nas_port; // NAS port
var $_encrypted_password; // Encrypted password, as described in the RFC 2865
var $_user_ip_address; // Remote IP address of the user
var $_request_authenticator; // Request-Authenticator, 16 octets random number
var $_response_authenticator; // Request-Authenticator, 16 octets random number
var $_username; // Username to sent to the Radius server
var $_password; // Password to sent to the Radius server (clear password, must be encrypted)
var $_identifier_to_send; // Identifier field for the packet to be sent
var $_identifier_received; // Identifier field for the received packet
var $_radius_packet_to_send; // Radius packet code (1=Access-Request, 2=Access-Accept, 3=Access-Reject, 4=Accounting-Request, 5=Accounting-Response, 11=Access-Challenge, 12=Status-Server (experimental), 13=Status-Client (experimental), 255=Reserved
var $_radius_packet_received; // Radius packet code (1=Access-Request, 2=Access-Accept, 3=Access-Reject, 4=Accounting-Request, 5=Accounting-Response, 11=Access-Challenge, 12=Status-Server (experimental), 13=Status-Client (experimental), 255=Reserved
var $_attributes_to_send; // Radius attributes to send
var $_attributes_received; // Radius attributes received
var $_socket_to_server; // Socket connection
var $_debug_mode; // Debug mode flag
var $_attributes_info; // Attributes info array
var $_radius_packet_info; // Radius packet codes info array
var $_last_error_code; // Last error code
var $_last_error_message; // Last error message
/*********************************************************************
*
* Name: Radius
* short description: Radius class constructor
*
* Creation 2008-01-04
* Update 2009-01-05
* @version v.1.2.2
* @author SysCo/al
* @param string ip address of the radius server
* @param string shared secret with the radius server
* @param string radius domain name suffix (default is empty)
* @param integer UDP timeout (default is 5)
* @param integer authentication port
* @param integer accounting port
* @return NULL
*********************************************************************/
public function Radius($ip_radius_server = '127.0.0.1', $shared_secret = '', $radius_suffix = '', $udp_timeout = 5, $authentication_port = 1812, $accounting_port = 1813)
{
$this->_radius_packet_info[1] = 'Access-Request';
$this->_radius_packet_info[2] = 'Access-Accept';
$this->_radius_packet_info[3] = 'Access-Reject';
$this->_radius_packet_info[4] = 'Accounting-Request';
$this->_radius_packet_info[5] = 'Accounting-Response';
$this->_radius_packet_info[11] = 'Access-Challenge';
$this->_radius_packet_info[12] = 'Status-Server (experimental)';
$this->_radius_packet_info[13] = 'Status-Client (experimental)';
$this->_radius_packet_info[255] = 'Reserved';
$this->_attributes_info[1] = array('User-Name', 'S');
$this->_attributes_info[2] = array('User-Password', 'S');
$this->_attributes_info[3] = array('CHAP-Password', 'S'); // Type (1) / Length (1) / CHAP Ident (1) / String
$this->_attributes_info[4] = array('NAS-IP-Address', 'A');
$this->_attributes_info[5] = array('NAS-Port', 'I');
$this->_attributes_info[6] = array('Service-Type', 'I');
$this->_attributes_info[7] = array('Framed-Protocol', 'I');
$this->_attributes_info[8] = array('Framed-IP-Address', 'A');
$this->_attributes_info[9] = array('Framed-IP-Netmask', 'A');
$this->_attributes_info[10] = array('Framed-Routing', 'I');
$this->_attributes_info[11] = array('Filter-Id', 'T');
$this->_attributes_info[12] = array('Framed-MTU', 'I');
$this->_attributes_info[13] = array('Framed-Compression', 'I');
$this->_attributes_info[14] = array( 'Login-IP-Host', 'A');
$this->_attributes_info[15] = array('Login-service', 'I');
$this->_attributes_info[16] = array('Login-TCP-Port', 'I');
$this->_attributes_info[17] = array('(unassigned)', '');
$this->_attributes_info[18] = array('Reply-Message', 'T');
$this->_attributes_info[19] = array('Callback-Number', 'S');
$this->_attributes_info[20] = array('Callback-Id', 'S');
$this->_attributes_info[21] = array('(unassigned)', '');
$this->_attributes_info[22] = array('Framed-Route', 'T');
$this->_attributes_info[23] = array('Framed-IPX-Network', 'I');
$this->_attributes_info[24] = array('State', 'S');
$this->_attributes_info[25] = array('Class', 'S');
$this->_attributes_info[26] = array('Vendor-Specific', 'S'); // Type (1) / Length (1) / Vendor-Id (4) / Vendor type (1) / Vendor length (1) / Attribute-Specific...
$this->_attributes_info[27] = array('Session-Timeout', 'I');
$this->_attributes_info[28] = array('Idle-Timeout', 'I');
$this->_attributes_info[29] = array('Termination-Action', 'I');
$this->_attributes_info[30] = array('Called-Station-Id', 'S');
$this->_attributes_info[31] = array('Calling-Station-Id', 'S');
$this->_attributes_info[32] = array('NAS-Identifier', 'S');
$this->_attributes_info[33] = array('Proxy-State', 'S');
$this->_attributes_info[34] = array('Login-LAT-Service', 'S');
$this->_attributes_info[35] = array('Login-LAT-Node', 'S');
$this->_attributes_info[36] = array('Login-LAT-Group', 'S');
$this->_attributes_info[37] = array('Framed-AppleTalk-Link', 'I');
$this->_attributes_info[38] = array('Framed-AppleTalk-Network', 'I');
$this->_attributes_info[39] = array('Framed-AppleTalk-Zone', 'S');
$this->_attributes_info[60] = array('CHAP-Challenge', 'S');
$this->_attributes_info[61] = array('NAS-Port-Type', 'I');
$this->_attributes_info[62] = array('Port-Limit', 'I');
$this->_attributes_info[63] = array('Login-LAT-Port', 'S');
$this->_attributes_info[76] = array('Prompt', 'I');
$this->_identifier_to_send = 0;
$this->_user_ip_address = (isset($_SERVER['REMOTE_ADDR'])?$_SERVER['REMOTE_ADDR']:'0.0.0.0');
$this->GenerateRequestAuthenticator();
$this->SetIpRadiusServer($ip_radius_server);
$this->SetSharedSecret($shared_secret);
$this->SetAuthenticationPort($authentication_port);
$this->SetAccountingPort($accounting_port);
$this->SetRadiusSuffix($radius_suffix);
$this->SetUdpTimeout($udp_timeout);
$this->SetUsername();
$this->SetPassword();
$this->SetNasIpAddress();
$this->SetNasPort();
$this->ClearLastError();
$this->ClearDataToSend();
$this->ClearDataReceived();
}
function GetNextIdentifier()
{
$this->_identifier_to_send = (($this->_identifier_to_send + 1) % 256);
return $this->_identifier_to_send;
}
function GenerateRequestAuthenticator()
{
$this->_request_authenticator = '';
for ($ra_loop = 0; $ra_loop <= 15; $ra_loop++)
{
$this->_request_authenticator .= chr(rand(1, 255));
}
}
function GetRequestAuthenticator()
{
return $this->_request_authenticator;
}
function GetLastError()
{
if (0 < $this->_last_error_code)
{
return $this->_last_error_message.' ('.$this->_last_error_code.')';
}
else
{
return '';
}
}
function ClearDataToSend()
{
$this->_radius_packet_to_send = 0;
$this->_attributes_to_send = NULL;
}
function ClearDataReceived()
{
$this->_radius_packet_received = 0;
$this->_attributes_received = NULL;
}
function SetPacketCodeToSend($packet_code)
{
$this->_radius_packet_to_send = $packet_code;
}
function SetDebugMode($debug_mode)
{
$this->_debug_mode = (TRUE === $debug_mode);
}
function SetIpRadiusServer($ip_radius_server)
{
$this->_ip_radius_server = gethostbyname($ip_radius_server);
}
function SetSharedSecret($shared_secret)
{
$this->_shared_secret = $shared_secret;
}
function SetRadiusSuffix($radius_suffix)
{
$this->_radius_suffix = $radius_suffix;
}
function SetUsername($username = '')
{
$temp_username = $username;
if (false === strpos($temp_username, '@'))
{
$temp_username .= $this->_radius_suffix;
}
$this->_username = $temp_username;
$this->SetAttribute(1, $this->_username);
}
function SetPassword($password = '')
{
$this->_password = $password;
$encrypted_password = '';
$padded_password = $password;
if (0 != (strlen($password)%16))
{
$padded_password .= str_repeat(chr(0),(16-strlen($password)%16));
}
$previous_result = $this->_request_authenticator;
for ($full_loop = 0; $full_loop < (strlen($padded_password)/16); $full_loop++)
{
$xor_value = md5($this->_shared_secret.$previous_result);
$previous_result = '';
for ($xor_loop = 0; $xor_loop <= 15; $xor_loop++)
{
$value1 = ord(substr($padded_password, ($full_loop * 16) + $xor_loop, 1));
$value2 = hexdec(substr($xor_value, 2*$xor_loop, 2));
$xor_result = $value1 ^ $value2;
$previous_result .= chr($xor_result);
}
$encrypted_password .= $previous_result;
}
$this->_encrypted_password = $encrypted_password;
$this->SetAttribute(2, $this->_encrypted_password);
}
function SetNasIPAddress($nas_ip_address = '')
{
if (0 < strlen($nas_ip_address))
{
$this->_nas_ip_address = gethostbyname($nas_ip_address);
}
else
{
$this->_nas_ip_address = gethostbyname(isset($_SERVER['SERVER_ADDR'])?$_SERVER['SERVER_ADDR']:'0.0.0.0');
}
$this->SetAttribute(4, $this->_nas_ip_address);
}
function SetNasPort($nas_port = 0)
{
$this->_nas_port = intval($nas_port);
$this->SetAttribute(5, $this->_nas_port);
}
function SetUdpTimeout($udp_timeout = 5)
{
if (intval($udp_timeout) > 0)
{
$this->_udp_timeout = intval($udp_timeout);
}
}
function ClearLastError()
{
$this->_last_error_code = 0;
$this->_last_error_message = '';
}
function SetAuthenticationPort($authentication_port)
{
if ((intval($authentication_port) > 0) && (intval($authentication_port) < 65536))
{
$this->_authentication_port = intval($authentication_port);
}
}
function SetAccountingPort($accounting_port)
{
if ((intval($accounting_port) > 0) && (intval($accounting_port) < 65536))
{
$this->_accounting_port = intval($accounting_port);
}
}
function GetReceivedPacket()
{
return $this->_radius_packet_received;
}
function GetReceivedAttributes()
{
return $this->_attributes_received;
}
function GetReadableReceivedAttributes()
{
$readable_attributes = '';
if (isset($this->_attributes_received))
{
foreach($this->_attributes_received as $one_received_attribute)
{
$attributes_info = $this->GetAttributesInfo($one_received_attribute[0]);
$readable_attributes .= $attributes_info[0].": ";
if (26 == $one_received_attribute[0])
{
$vendor_array = $this->DecodeVendorSpecificContent($one_received_attribute[1]);
foreach($vendor_array as $vendor_one)
{
$readable_attributes .= 'Vendor-Id: '.$vendor_one[0].", Vendor-type: ".$vendor_one[1].", Attribute-specific: ".$vendor_one[2];
}
}
else
{
$readable_attributes .= $one_received_attribute[1];
}
$readable_attributes .= "<br />\n";
}
}
return $readable_attributes;
}
function GetAttribute($attribute_type)
{
$attribute_value = NULL;
foreach($this->_attributes_received as $one_received_attribute)
{
if (intval($attribute_type) == $one_received_attribute[0])
{
$attribute_value = $one_received_attribute[1];
break;
}
}
return $attribute_value;
}
function GetRadiusPacketInfo($info_index)
{
if (isset($this->_radius_packet_info[intval($info_index)]))
{
return $this->_radius_packet_info[intval($info_index)];
}
else
{
return '';
}
}
function GetAttributesInfo($info_index)
{
if (isset($this->_attributes_info[intval($info_index)]))
{
return $this->_attributes_info[intval($info_index)];
}
else
{
return array('','');
}
}
function DebugInfo($debug_info)
{
if ($this->_debug_mode)
{
echo date('Y-m-d H:i:s').' DEBUG: ';
echo $debug_info;
echo '<br />';
flush();
}
}
function SetAttribute($type, $value)
{
$attribute_index = -1;
for ($attributes_loop = 0; $attributes_loop < count($this->_attributes_to_send); $attributes_loop++)
{
if ($type == ord(substr($this->_attributes_to_send[$attributes_loop], 0, 1)))
{
$attribute_index = $attributes_loop;
break;
}
}
$temp_attribute = NULL;
if (isset($this->_attributes_info[$type]))
{
switch ($this->_attributes_info[$type][1])
{
case 'T': // Text, 1-253 octets containing UTF-8 encoded ISO 10646 characters (RFC 2279).
$temp_attribute = chr($type).chr(2+strlen($value)).$value;
break;
case 'S': // String, 1-253 octets containing binary data (values 0 through 255 decimal, inclusive).
$temp_attribute = chr($type).chr(2+strlen($value)).$value;
break;
case 'A': // Address, 32 bit value, most significant octet first.
$ip_array = explode(".", $value);
$temp_attribute = chr($type).chr(6).chr($ip_array[0]).chr($ip_array[1]).chr($ip_array[2]).chr($ip_array[3]);
break;
case 'I': // Integer, 32 bit unsigned value, most significant octet first.
$temp_attribute = chr($type).chr(6).chr(($value/(256*256*256))%256).chr(($value/(256*256))%256).chr(($value/(256))%256).chr($value%256);
break;
case 'D': // Time, 32 bit unsigned value, most significant octet first -- seconds since 00:00:00 UTC, January 1, 1970. (not used in this RFC)
$temp_attribute = NULL;
break;
default:
$temp_attribute = NULL;
}
}
if ($attribute_index > -1)
{
$this->_attributes_to_send[$attribute_index] = $temp_attribute;
$additional_debug = 'Modified';
}
else
{
$this->_attributes_to_send[] = $temp_attribute;
$additional_debug = 'Added';
}
$attribute_info = $this->GetAttributesInfo($type);
$this->DebugInfo($additional_debug.' Attribute '.$type.' ('.$attribute_info[0].'), format '.$attribute_info[1].', value <em>'.$value.'</em>');
}
function DecodeAttribute($attribute_raw_value, $attribute_format)
{
$attribute_value = NULL;
if (isset($this->_attributes_info[$attribute_format]))
{
switch ($this->_attributes_info[$attribute_format][1])
{
case 'T': // Text, 1-253 octets containing UTF-8 encoded ISO 10646 characters (RFC 2279).
$attribute_value = $attribute_raw_value;
break;
case 'S': // String, 1-253 octets containing binary data (values 0 through 255 decimal, inclusive).
$attribute_value = $attribute_raw_value;
break;
case 'A': // Address, 32 bit value, most significant octet first.
$attribute_value = ord(substr($attribute_raw_value, 0, 1)).'.'.ord(substr($attribute_raw_value, 1, 1)).'.'.ord(substr($attribute_raw_value, 2, 1)).'.'.ord(substr($attribute_raw_value, 3, 1));
break;
case 'I': // Integer, 32 bit unsigned value, most significant octet first.
$attribute_value = (ord(substr($attribute_raw_value, 0, 1))*256*256*256)+(ord(substr($attribute_raw_value, 1, 1))*256*256)+(ord(substr($attribute_raw_value, 2, 1))*256)+ord(substr($attribute_raw_value, 3, 1));
break;
case 'D': // Time, 32 bit unsigned value, most significant octet first -- seconds since 00:00:00 UTC, January 1, 1970. (not used in this RFC)
$attribute_value = NULL;
break;
default:
$attribute_value = NULL;
}
}
return $attribute_value;
}
/*********************************************************************
* Array returned: array(array(Vendor-Id1, Vendor type1, Attribute-Specific1), ..., array(Vendor-IdN, Vendor typeN, Attribute-SpecificN)
*********************************************************************/
function DecodeVendorSpecificContent($vendor_specific_raw_value)
{
$result = array();
$offset_in_raw = 0;
$vendor_id = (ord(substr($vendor_specific_raw_value, 0, 1))*256*256*256)+(ord(substr($vendor_specific_raw_value, 1, 1))*256*256)+(ord(substr($vendor_specific_raw_value, 2, 1))*256)+ord(substr($vendor_specific_raw_value, 3, 1));
$offset_in_raw += 4;
while ($offset_in_raw < strlen($vendor_specific_raw_value))
{
$vendor_type = (ord(substr($vendor_specific_raw_value, 0+$offset_in_raw, 1)));
$vendor_length = (ord(substr($vendor_specific_raw_value, 1+$offset_in_raw, 1)));
$attribute_specific = substr($vendor_specific_raw_value, 2+$offset_in_raw, $vendor_length);
$result[] = array($vendor_id, $vendor_type, $attribute_specific);
$offset_in_raw += ($vendor_length);
}
return $result;
}
/*
* Function : AccessRequest
*
* Return TRUE if Access-Request is accepted, FALSE otherwise
*/
function AccessRequest($username = '', $password = '', $udp_timeout = 0, $state = NULL)
{
$this->ClearDataReceived();
$this->ClearLastError();
$this->SetPacketCodeToSend(1); // Access-Request
if (0 < strlen($username))
{
$this->SetUsername($username);
}
if (0 < strlen($password))
{
$this->SetPassword($password);
}
if ($state!==NULL)
{
$this->SetAttribute(24, $state);
}
else
{
$this->SetAttribute(6, 1); // 1=Login
}
if (intval($udp_timeout) > 0)
{
$this->SetUdpTimeout($udp_timeout);
}
$attributes_content = '';
for ($attributes_loop = 0; $attributes_loop < count($this->_attributes_to_send); $attributes_loop++)
{
$attributes_content .= $this->_attributes_to_send[$attributes_loop];
}
$packet_length = 4; // Radius packet code + Identifier + Length high + Length low
$packet_length += strlen($this->_request_authenticator); // Request-Authenticator
$packet_length += strlen($attributes_content); // Attributes
$packet_data = chr($this->_radius_packet_to_send);
$packet_data .= chr($this->GetNextIdentifier());
$packet_data .= chr(intval($packet_length/256));
$packet_data .= chr(intval($packet_length%256));
$packet_data .= $this->_request_authenticator;
$packet_data .= $attributes_content;
$_socket_to_server = socket_create(AF_INET, SOCK_DGRAM, 17); // UDP packet = 17
if ($_socket_to_server === FALSE)
{
$this->_last_error_code = socket_last_error();
$this->_last_error_message = socket_strerror($this->_last_error_code);
}
elseif (FALSE === socket_connect($_socket_to_server, $this->_ip_radius_server, $this->_authentication_port))
{
$this->_last_error_code = socket_last_error();
$this->_last_error_message = socket_strerror($this->_last_error_code);
}
elseif (FALSE === socket_write($_socket_to_server, $packet_data, $packet_length))
{
$this->_last_error_code = socket_last_error();
$this->_last_error_message = socket_strerror($this->_last_error_code);
}
else
{
$this->DebugInfo('<b>Packet type '.$this->_radius_packet_to_send.' ('.$this->GetRadiusPacketInfo($this->_radius_packet_to_send).')'.' sent</b>');
if ($this->_debug_mode)
{
$readable_attributes = '';
foreach($this->_attributes_to_send as $one_attribute_to_send)
{
$attribute_info = $this->GetAttributesInfo(ord(substr($one_attribute_to_send,0,1)));
$this->DebugInfo('Attribute '.ord(substr($one_attribute_to_send,0,1)).' ('.$attribute_info[0].'), length '.(ord(substr($one_attribute_to_send,1,1))-2).', format '.$attribute_info[1].', value <em>'.$this->DecodeAttribute(substr($one_attribute_to_send,2), ord(substr($one_attribute_to_send,0,1))).'</em>');
}
}
$read_socket_array = array($_socket_to_server);
$write_socket_array = NULL;
$except_socket_array = NULL;
$received_packet = chr(0);
if (!(FALSE === socket_select($read_socket_array, $write_socket_array, $except_socket_array, $this->_udp_timeout)))
{
if (in_array($_socket_to_server, $read_socket_array))
{
if (FALSE === ($received_packet = @socket_read($_socket_to_server, 1024))) // @ used, than no error is displayed if the connection is closed by the remote host
{
$received_packet = chr(0);
$this->_last_error_code = socket_last_error();
$this->_last_error_message = socket_strerror($this->_last_error_code);
}
else
{
socket_close($_socket_to_server);
}
}
}
else
{
socket_close($_socket_to_server);
}
}
$this->_radius_packet_received = intval(ord(substr($received_packet, 0, 1)));
$this->DebugInfo('<b>Packet type '.$this->_radius_packet_received.' ('.$this->GetRadiusPacketInfo($this->_radius_packet_received).')'.' received</b>');
if ($this->_radius_packet_received > 0)
{
$this->_identifier_received = intval(ord(substr($received_packet, 1, 1)));
$packet_length = (intval(ord(substr($received_packet, 2, 1))) * 256) + (intval(ord(substr($received_packet, 3, 1))));
$this->_response_authenticator = substr($received_packet, 4, 16);
$attributes_content = substr($received_packet, 20, ($packet_length - 4 - 16));
while (strlen($attributes_content) > 2)
{
$attribute_type = intval(ord(substr($attributes_content,0,1)));
$attribute_length = intval(ord(substr($attributes_content,1,1)));
$attribute_raw_value = substr($attributes_content,2,$attribute_length-2);
$attributes_content = substr($attributes_content, $attribute_length);
$attribute_value = $this->DecodeAttribute($attribute_raw_value, $attribute_type);
$attribute_info = $this->GetAttributesInfo($attribute_type);
if (26 == $attribute_type)
{
$vendor_array = $this->DecodeVendorSpecificContent($attribute_value);
foreach($vendor_array as $vendor_one)
{
$this->DebugInfo('Attribute '.$attribute_type.' ('.$attribute_info[0].'), length '.($attribute_length-2).', format '.$attribute_info[1].', Vendor-Id: '.$vendor_one[0].", Vendor-type: ".$vendor_one[1].", Attribute-specific: ".$vendor_one[2]);
}
}
else
{
$this->DebugInfo('Attribute '.$attribute_type.' ('.$attribute_info[0].'), length '.($attribute_length-2).', format '.$attribute_info[1].', value <em>'.$attribute_value.'</em>');
}
$this->_attributes_received[] = array($attribute_type, $attribute_value);
}
}
return (2 == ($this->_radius_packet_received));
}
}
?>