ILIAS  release_5-2 Revision v5.2.25-18-g3f80b828510
Public Member Functions | Data Fields
ntlm_sasl_client_class Class Reference
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Public Member Functions

 initialize (&$client)
 
 ASCIIToUnicode ($ascii)
 
 typeMsg1 ($domain, $workstation)
 
 NTLMResponse ($challenge, $password)
 
 typeMsg3 ($ntlm_response, $user, $domain, $workstation)
 
 start (&$client, &$message, &$interactions)
 
 step (&$client, $response, &$message, &$interactions)
 

Data Fields

 $credentials = array()
 
 $state = SASL_NTLM_STATE_START
 

Detailed Description

Definition at line 16 of file ntlm_sasl_client.php.

Member Function Documentation

◆ ASCIIToUnicode()

ntlm_sasl_client_class::ASCIIToUnicode (   $ascii)

Definition at line 37 of file ntlm_sasl_client.php.

38 {
39 for ($unicode = "", $a = 0; $a < strlen($ascii); $a++) {
40 $unicode .= substr($ascii, $a, 1) . chr(0);
41 }
42 return ($unicode);
43 }

Referenced by NTLMResponse(), and typeMsg3().

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◆ initialize()

ntlm_sasl_client_class::initialize ( &  $client)

Definition at line 21 of file ntlm_sasl_client.php.

22 {
23 if (!function_exists($function = "mcrypt_encrypt")
24 || !function_exists($function = "mhash")
25 ) {
26 $extensions = array(
27 "mcrypt_encrypt" => "mcrypt",
28 "mhash" => "mhash"
29 );
30 $client->error = "the extension " . $extensions[$function] .
31 " required by the NTLM SASL client class is not available in this PHP configuration";
32 return (0);
33 }
34 return (1);
35 }
$client
$client
Definition: dummy_client.php:38

References $client.

◆ NTLMResponse()

ntlm_sasl_client_class::NTLMResponse (   $challenge,
  $password 
)

Definition at line 66 of file ntlm_sasl_client.php.

67 {
68 $unicode = $this->ASCIIToUnicode($password);
69 $md4 = mhash(MHASH_MD4, $unicode);
70 $padded = $md4 . str_repeat(chr(0), 21 - strlen($md4));
71 $iv_size = mcrypt_get_iv_size(MCRYPT_DES, MCRYPT_MODE_ECB);
72 $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
73 for ($response = "", $third = 0; $third < 21; $third += 7) {
74 for ($packed = "", $p = $third; $p < $third + 7; $p++) {
75 $packed .= str_pad(decbin(ord(substr($padded, $p, 1))), 8, "0", STR_PAD_LEFT);
76 }
77 for ($key = "", $p = 0; $p < strlen($packed); $p += 7) {
78 $s = substr($packed, $p, 7);
79 $b = $s . ((substr_count($s, "1") % 2) ? "0" : "1");
80 $key .= chr(bindec($b));
81 }
82 $ciphertext = mcrypt_encrypt(MCRYPT_DES, $key, $challenge, MCRYPT_MODE_ECB, $iv);
83 $response .= $ciphertext;
84 }
85 return $response;
86 }
ntlm_sasl_client_class\ASCIIToUnicode
ASCIIToUnicode($ascii)
Definition: ntlm_sasl_client.php:37

References ASCIIToUnicode().

Referenced by step().

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◆ start()

ntlm_sasl_client_class::start ( &  $client,
&  $message,
&  $interactions 
)

Definition at line 138 of file ntlm_sasl_client.php.

139 {
140 if ($this->state != SASL_NTLM_STATE_START) {
141 $client->error = "NTLM authentication state is not at the start";
142 return (SASL_FAIL);
143 }
144 $this->credentials = array(
145 "user" => "",
146 "password" => "",
147 "realm" => "",
148 "workstation" => ""
149 );
150 $defaults = array();
151 $status = $client->GetCredentials($this->credentials, $defaults, $interactions);
152 if ($status == SASL_CONTINUE) {
153 $this->state = SASL_NTLM_STATE_IDENTIFY_DOMAIN;
154 }
155 unset($message);
156 return ($status);
157 }
SASL_CONTINUE
const SASL_CONTINUE
Definition: ntlm_sasl_client.php:14
SASL_NTLM_STATE_START
const SASL_NTLM_STATE_START
Definition: ntlm_sasl_client.php:9
SASL_FAIL
const SASL_FAIL
Definition: ntlm_sasl_client.php:13
SASL_NTLM_STATE_IDENTIFY_DOMAIN
const SASL_NTLM_STATE_IDENTIFY_DOMAIN
Definition: ntlm_sasl_client.php:10

References $client, SASL_CONTINUE, SASL_FAIL, SASL_NTLM_STATE_IDENTIFY_DOMAIN, and SASL_NTLM_STATE_START.

◆ step()

ntlm_sasl_client_class::step ( &  $client,
  $response,
&  $message,
&  $interactions 
)

Definition at line 159 of file ntlm_sasl_client.php.

160 {
161 switch ($this->state) {
162 case SASL_NTLM_STATE_IDENTIFY_DOMAIN:
163 $message = $this->typeMsg1($this->credentials["realm"], $this->credentials["workstation"]);
164 $this->state = SASL_NTLM_STATE_RESPOND_CHALLENGE;
165 break;
166 case SASL_NTLM_STATE_RESPOND_CHALLENGE:
167 $ntlm_response = $this->NTLMResponse(substr($response, 24, 8), $this->credentials["password"]);
168 $message = $this->typeMsg3(
169 $ntlm_response,
170 $this->credentials["user"],
171 $this->credentials["realm"],
172 $this->credentials["workstation"]
173 );
174 $this->state = SASL_NTLM_STATE_DONE;
175 break;
176 case SASL_NTLM_STATE_DONE:
177 $client->error = "NTLM authentication was finished without success";
178 return (SASL_FAIL);
179 default:
180 $client->error = "invalid NTLM authentication step state";
181 return (SASL_FAIL);
182 }
183 return (SASL_CONTINUE);
184 }
ntlm_sasl_client_class\NTLMResponse
NTLMResponse($challenge, $password)
Definition: ntlm_sasl_client.php:66
ntlm_sasl_client_class\typeMsg3
typeMsg3($ntlm_response, $user, $domain, $workstation)
Definition: ntlm_sasl_client.php:88
ntlm_sasl_client_class\typeMsg1
typeMsg1($domain, $workstation)
Definition: ntlm_sasl_client.php:45
SASL_NTLM_STATE_DONE
const SASL_NTLM_STATE_DONE
Definition: ntlm_sasl_client.php:12
SASL_NTLM_STATE_RESPOND_CHALLENGE
const SASL_NTLM_STATE_RESPOND_CHALLENGE
Definition: ntlm_sasl_client.php:11

References $client, NTLMResponse(), SASL_CONTINUE, SASL_FAIL, SASL_NTLM_STATE_DONE, SASL_NTLM_STATE_IDENTIFY_DOMAIN, SASL_NTLM_STATE_RESPOND_CHALLENGE, typeMsg1(), and typeMsg3().

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◆ typeMsg1()

ntlm_sasl_client_class::typeMsg1 (   $domain,
  $workstation 
)

Definition at line 45 of file ntlm_sasl_client.php.

46 {
47 $domain_length = strlen($domain);
48 $workstation_length = strlen($workstation);
49 $workstation_offset = 32;
50 $domain_offset = $workstation_offset + $workstation_length;
51 return (
52 "NTLMSSP\0" .
53 "\x01\x00\x00\x00" .
54 "\x07\x32\x00\x00" .
55 pack("v", $domain_length) .
56 pack("v", $domain_length) .
57 pack("V", $domain_offset) .
58 pack("v", $workstation_length) .
59 pack("v", $workstation_length) .
60 pack("V", $workstation_offset) .
61 $workstation .
62 $domain
63 );
64 }

Referenced by step().

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◆ typeMsg3()

ntlm_sasl_client_class::typeMsg3 (   $ntlm_response,
  $user,
  $domain,
  $workstation 
)

Definition at line 88 of file ntlm_sasl_client.php.

89 {
90 $domain_unicode = $this->ASCIIToUnicode($domain);
91 $domain_length = strlen($domain_unicode);
92 $domain_offset = 64;
93 $user_unicode = $this->ASCIIToUnicode($user);
94 $user_length = strlen($user_unicode);
95 $user_offset = $domain_offset + $domain_length;
96 $workstation_unicode = $this->ASCIIToUnicode($workstation);
97 $workstation_length = strlen($workstation_unicode);
98 $workstation_offset = $user_offset + $user_length;
99 $lm = "";
100 $lm_length = strlen($lm);
101 $lm_offset = $workstation_offset + $workstation_length;
102 $ntlm = $ntlm_response;
103 $ntlm_length = strlen($ntlm);
104 $ntlm_offset = $lm_offset + $lm_length;
105 $session = "";
106 $session_length = strlen($session);
107 $session_offset = $ntlm_offset + $ntlm_length;
108 return (
109 "NTLMSSP\0" .
110 "\x03\x00\x00\x00" .
111 pack("v", $lm_length) .
112 pack("v", $lm_length) .
113 pack("V", $lm_offset) .
114 pack("v", $ntlm_length) .
115 pack("v", $ntlm_length) .
116 pack("V", $ntlm_offset) .
117 pack("v", $domain_length) .
118 pack("v", $domain_length) .
119 pack("V", $domain_offset) .
120 pack("v", $user_length) .
121 pack("v", $user_length) .
122 pack("V", $user_offset) .
123 pack("v", $workstation_length) .
124 pack("v", $workstation_length) .
125 pack("V", $workstation_offset) .
126 pack("v", $session_length) .
127 pack("v", $session_length) .
128 pack("V", $session_offset) .
129 "\x01\x02\x00\x00" .
130 $domain_unicode .
131 $user_unicode .
132 $workstation_unicode .
133 $lm .
134 $ntlm
135 );
136 }

References ASCIIToUnicode().

Referenced by step().

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Field Documentation

◆ $credentials

ntlm_sasl_client_class::$credentials = array()

Definition at line 18 of file ntlm_sasl_client.php.

◆ $state

ntlm_sasl_client_class::$state = SASL_NTLM_STATE_START

Definition at line 19 of file ntlm_sasl_client.php.

The documentation for this class was generated from the following file: