/var/www/hkosl.com/gba-owea/old_20191025/old_2018/vendor/phpmailer/phpmailer/extras/ntlm_sasl_client.php


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<?php
/*
 * ntlm_sasl_client.php
 *
 * @(#) $Id: ntlm_sasl_client.php,v 1.3 2004/11/17 08:00:37 mlemos Exp $
 *
 */

define("SASL_NTLM_STATE_START"0);
define("SASL_NTLM_STATE_IDENTIFY_DOMAIN"1);
define("SASL_NTLM_STATE_RESPOND_CHALLENGE"2);
define("SASL_NTLM_STATE_DONE"3);
define("SASL_FAIL", -1);
define("SASL_CONTINUE"1);

class 
ntlm_sasl_client_class
{
    public 
$credentials = array();
    public 
$state SASL_NTLM_STATE_START;

    public function 
initialize(&$client)
    {
        if (!
function_exists($function "mcrypt_encrypt")
            || !
function_exists($function "mhash")
        ) {
            
$extensions = array(
                
"mcrypt_encrypt" => "mcrypt",
                
"mhash" => "mhash"
            
);
            
$client->error "the extension " $extensions[$function] .
                
" required by the NTLM SASL client class is not available in this PHP configuration";
            return (
0);
        }
        return (
1);
    }

    public function 
ASCIIToUnicode($ascii)
    {
        for (
$unicode ""$a 0$a strlen($ascii); $a++) {
            
$unicode .= substr($ascii$a1) . chr(0);
        }
        return (
$unicode);
    }

    public function 
typeMsg1($domain$workstation)
    {
        
$domain_length strlen($domain);
        
$workstation_length strlen($workstation);
        
$workstation_offset 32;
        
$domain_offset $workstation_offset $workstation_length;
        return (
            
"NTLMSSP\0" .
            
"\x01\x00\x00\x00" .
            
"\x07\x32\x00\x00" .
            
pack("v"$domain_length) .
            
pack("v"$domain_length) .
            
pack("V"$domain_offset) .
            
pack("v"$workstation_length) .
            
pack("v"$workstation_length) .
            
pack("V"$workstation_offset) .
            
$workstation .
            
$domain
        
);
    }

    public function 
NTLMResponse($challenge$password)
    {
        
$unicode $this->ASCIIToUnicode($password);
        
$md4 mhash(MHASH_MD4$unicode);
        
$padded $md4 str_repeat(chr(0), 21 strlen($md4));
        
$iv_size mcrypt_get_iv_size(MCRYPT_DESMCRYPT_MODE_ECB);
        
$iv mcrypt_create_iv($iv_sizeMCRYPT_RAND);
        for (
$response ""$third 0$third 21$third += 7) {
            for (
$packed ""$p $third$p $third 7$p++) {
                
$packed .= str_pad(decbin(ord(substr($padded$p1))), 8"0"STR_PAD_LEFT);
            }
            for (
$key ""$p 0$p strlen($packed); $p += 7) {
                
$s substr($packed$p7);
                
$b $s . ((substr_count($s"1") % 2) ? "0" "1");
                
$key .= chr(bindec($b));
            }
            
$ciphertext mcrypt_encrypt(MCRYPT_DES$key$challengeMCRYPT_MODE_ECB$iv);
            
$response .= $ciphertext;
        }
        return 
$response;
    }

    public function 
typeMsg3($ntlm_response$user$domain$workstation)
    {
        
$domain_unicode $this->ASCIIToUnicode($domain);
        
$domain_length strlen($domain_unicode);
        
$domain_offset 64;
        
$user_unicode $this->ASCIIToUnicode($user);
        
$user_length strlen($user_unicode);
        
$user_offset $domain_offset $domain_length;
        
$workstation_unicode $this->ASCIIToUnicode($workstation);
        
$workstation_length strlen($workstation_unicode);
        
$workstation_offset $user_offset $user_length;
        
$lm "";
        
$lm_length strlen($lm);
        
$lm_offset $workstation_offset $workstation_length;
        
$ntlm $ntlm_response;
        
$ntlm_length strlen($ntlm);
        
$ntlm_offset $lm_offset $lm_length;
        
$session "";
        
$session_length strlen($session);
        
$session_offset $ntlm_offset $ntlm_length;
        return (
            
"NTLMSSP\0" .
            
"\x03\x00\x00\x00" .
            
pack("v"$lm_length) .
            
pack("v"$lm_length) .
            
pack("V"$lm_offset) .
            
pack("v"$ntlm_length) .
            
pack("v"$ntlm_length) .
            
pack("V"$ntlm_offset) .
            
pack("v"$domain_length) .
            
pack("v"$domain_length) .
            
pack("V"$domain_offset) .
            
pack("v"$user_length) .
            
pack("v"$user_length) .
            
pack("V"$user_offset) .
            
pack("v"$workstation_length) .
            
pack("v"$workstation_length) .
            
pack("V"$workstation_offset) .
            
pack("v"$session_length) .
            
pack("v"$session_length) .
            
pack("V"$session_offset) .
            
"\x01\x02\x00\x00" .
            
$domain_unicode .
            
$user_unicode .
            
$workstation_unicode .
            
$lm .
            
$ntlm
        
);
    }

    public function 
start(&$client, &$message, &$interactions)
    {
        if (
$this->state != SASL_NTLM_STATE_START) {
            
$client->error "NTLM authentication state is not at the start";
            return (
SASL_FAIL);
        }
        
$this->credentials = array(
            
"user" => "",
            
"password" => "",
            
"realm" => "",
            
"workstation" => ""
        
);
        
$defaults = array();
        
$status $client->GetCredentials($this->credentials$defaults$interactions);
        if (
$status == SASL_CONTINUE) {
            
$this->state SASL_NTLM_STATE_IDENTIFY_DOMAIN;
        }
        unset(
$message);
        return (
$status);
    }

    public function 
step(&$client$response, &$message, &$interactions)
    {
        switch (
$this->state) {
            case 
SASL_NTLM_STATE_IDENTIFY_DOMAIN:
                
$message $this->typeMsg1($this->credentials["realm"], $this->credentials["workstation"]);
                
$this->state SASL_NTLM_STATE_RESPOND_CHALLENGE;
                break;
            case 
SASL_NTLM_STATE_RESPOND_CHALLENGE:
                
$ntlm_response $this->NTLMResponse(substr($response248), $this->credentials["password"]);
                
$message $this->typeMsg3(
                    
$ntlm_response,
                    
$this->credentials["user"],
                    
$this->credentials["realm"],
                    
$this->credentials["workstation"]
                );
                
$this->state SASL_NTLM_STATE_DONE;
                break;
            case 
SASL_NTLM_STATE_DONE:
                
$client->error "NTLM authentication was finished without success";
                return (
SASL_FAIL);
            default:
                
$client->error "invalid NTLM authentication step state";
                return (
SASL_FAIL);
        }
        return (
SASL_CONTINUE);
    }
}