/[drupal]/contributions/modules/webserver_auth/webserver_auth.module
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revision 1.11.2.2, Fri Apr 29 19:28:02 2005 UTC revision 1.23, Thu Jul 17 20:42:49 2008 UTC
# Line 1  Line 1 
1  <?php  <?php
2  // $Id: webserver_auth.module,v 1.12 2005/04/29 19:27:31 weitzman Exp $  // $Id: webserver_auth.module,v 1.22 2008/07/17 20:37:37 weitzman Exp $
3    
4    function webserver_auth_menu() {
5      $items = array();
6      $items['admin/settings/webserver_auth'] = array(
7        'title' => t('Webserver authentication'),
8        'description' => t('Configure a domain for generating email addresses. Optional.'),
9        'page callback' => 'drupal_get_form',
10        'page arguments' => array('webserver_auth_settings'),
11        'access arguments' => array('administer site configuration'),
12      );
13      return $items;
14    }
15    
16  function webserver_auth_init() {  function webserver_auth_init() {
17    global $user, $account;    global $user;
18    
19    if ($user->uid) {    $authname = '';
20      //do nothing because user is already logged into Drupal  
21      // Make sure we get the remote user whichever way it is available.
22      if (isset($_SERVER['REDIRECT_REMOTE_USER'])) {
23        $authname = $_SERVER['REDIRECT_REMOTE_USER'];
24      }
25      elseif (isset($_SERVER['REMOTE_USER'])) {
26        $authname = $_SERVER['REMOTE_USER'];
27    }    }
   else {  
     if ($name = $_SERVER["REMOTE_USER"]) {  
       // user is logged into webserver.  
       $account->name = $name;  
       //modules get to change the user bits before saving. use a global $account to do so.  
       // only loaded modules will see this hook  
       module_invoke_all("webserver_auth");  
       // if we are in bootstrap, load user.module ourselves  
       if (!module_exist('user')) {  
        drupal_load('module', 'user');  
       }  
28    
29        // try to log into Drupal. if unsuccessful, register the user    // Perform some cleanup so plaintext passwords aren't available under
30        $user = user_external_load($account->name);    // mod_auth_kerb.
31        if (!$user->uid) {    unset($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']);
32          if (variable_get("user_register", 1) == 1) {  
33            $user_default = array("name" => $account->name, "pass" => "cyan", "init" => db_escape_string($name), "authname_webserver_auth" => $account->name, "status" => 1, "roles" => array(_user_authenticated_id()));    // Retrieve user credentials
34            // TODO - the hook_user('register') will fire but only for loaded modules. cold be a problem for sites using page cache and that hook+operation    $result = db_query("SELECT uid FROM {authmap} WHERE authname = '%s' AND module = 'webserver_auth'", $authname);
35            $user = user_save("", array_merge($user_default, $account));    $expected = db_fetch_array($result);
36            watchdog("user", "new user: $user->name (webserver_auth)", l(t("edit user"), "admin/user/edit/$user->uid"));  
37          }    if (isset($user) && $user->uid === $expected['uid']) {
38        // Do nothing: user is already logged into Drupal with session data matching
39        // HTTP authentication.
40      }
41      else {
42        if (!empty($authname)) {
43          // User is logged into webserver via HTTP authentication.
44          // Try to log into Drupal.
45          $user = user_external_load($authname);
46    
47          if (!$user) {
48            // If unsuccessful, register the user. This will trigger
49            // webserver_auth_user() and any other _user() hooks.
50            user_external_login_register($authname, 'webserver_auth');
51        }        }
52      }      }
     else {  
       // do nothing. user isn't logged into web server  
     }  
53    }    }
54  }  }
55    
56  // using a global to change your bits. module_invoke_all miffs me.  /**
57  function webserver_auth_webserver_auth() {   * Implementation of hook_user().
58    global $account;   */
59    function webserver_auth_user($op, &$edit, &$account, $category = NULL) {
60    // pretties up the username for NTLM authentication (i.e. Windows)    if ($op == 'submit' && $category = 'account') {
61    if ($_SERVER["AUTH_TYPE"] == "NTLM" || $_SERVER["AUTH_TYPE"] == 'Negotiate') {      // Only fiddle with new accounts.
62      $account->name = substr(trim($account->name), strrpos(trim($account->name), "\\")+1);      if (empty($account->uid)) {
63    }        $account->name = trim($account->name);
64          // Pretty up the username for NTLM authentication (i.e. Windows)
65          if (variable_get('webserver_auth_strip_prefix', TRUE)) {
66            // Get 'bar' from 'foo1\foo2\bar'
67            $account->name = array_pop(explode("\\", $account->name));
68          }
69          if (variable_get('webserver_auth_strip_domain', TRUE)) {
70            // Get 'foo' from 'foo@bar'
71            $account->name = array_shift(explode('@', $account->name));
72          }
73    
74    if ($domain = variable_get("webserver_auth_domain", "")) {        // Generate an e-mail address automagically
75      if ($account->name) {        if ($domain = variable_get('webserver_auth_email_domain', '')) {
76        $account->mail = $account->name. "@$domain";          if ($account->name) {
77              $account->mail = $account->name. '@'. $domain;
78            }
79          }
80          // run some custom code to modify the user object at creation time
81          if ($code = variable_get('webserver_auth_insert', '')) {
82            eval('?>'. $code);
83          }
84      }      }
85    }    }
86  }    elseif ($op == 'logout') {
87        global $base_url;
88  function webserver_auth_settings() {      // kick user out of a secure session so they aren't automatically logged back in
89    $output = form_textfield(t("Email Domain"), "webserver_auth_domain", variable_get("webserver_auth_domain", ""), 30, 55, t("Append this domain name to each new user in order generate his email address."));      $base_url = str_replace('https://', 'http://', $base_url);
   return $output;  
 }  
   
 function webserver_auth_help($section) {  
   $output ="";  
   
   switch ($section) {  
     case 'admin/help#webserver_auth':  
       break;  
     case 'admin/modules#description':  
       $output .= t("Use web server authentication instead of Drupal");  
       break;  
90    }    }
   
   return $output;  
91  }  }
92    
   
 ?>  
93    function webserver_auth_settings() {
94      $form['webserver_auth_email_domain'] = array(
95        '#type' => 'textfield',
96        '#title' => t('Email domain'),
97        '#default_value' => variable_get('webserver_auth_email_domain', ''),
98        '#size' => 30,
99        '#maxlength' => 55,
100        '#description' => t('Append this domain name to each new user in order generate his email address.'),
101      );
102      $form['advanced'] = array(
103        '#type' => 'fieldset',
104        '#title' => t('Advanced settings'),
105        '#collapsible' => TRUE,
106        '#collapsed' => TRUE,
107        'webserver_auth_strip_prefix' => array(
108          '#type' => 'checkbox',
109          '#title' => t('Strip prefix'),
110          '#default_value' => variable_get('webserver_auth_strip_prefix', TRUE),
111          '#description' => t("Strip NTLM-style prefixes (e.g. 'foo1\foo2') from the login name ('foo1\foo2\bar') to generate the username ('bar')."),
112        ),
113        'webserver_auth_strip_domain' => array(
114          '#type' => 'checkbox',
115          '#title' => t('Strip domain'),
116          '#default_value' => variable_get('webserver_auth_strip_domain', TRUE),
117          '#description' => t("Strip a domain name (e.g. '@EXAMPLE.COM') from the login name ('newuser@EXAMPLE.COM') to generate the username ('newuser')."),
118        ),
119        'webserver_auth_insert' => array(
120          '#type' => 'textarea',
121          '#title' => 'User account modification',
122          '#default_value' => variable_get('webserver_auth_insert', ''),
123          '#description' => t("Modify user accounts at the time of creation. Use PHP code (enclosed in <code>&lt;?php</code> and <code>?&gt;</code>). The variable <code>\$account</code> is available as in <a href=\"http://api.drupal.org/api/function/hook_user/6\">hook_user('submit',...)</a>. Changes to the \$account object will be automatically saved."),
124        ),
125      );
126      return system_settings_form($form);
127    }
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