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<?php
include_once 'ldap_integration/ldapauth.conf.php';
include_once 'ldap_integration/libdebug.php';
include_once 'ldap_integration/LDAPInterface.php';
define('LDAP_FIRST_DRUPAL', 0);
define('LDAP_FIRST_LDAP', 1);
define('LDAP_DEFAULT_ORG', 'LDAP Directory');
define('LDAP_DEFAULT_BASE_DN', 'ou=Users,dc=drupal,dc=org');
define('LDAP_DEFAULT_USER_ATTRIBUTE', 'sAMAccountName');
define('LDAP_DEFAULT_MAIL_ATTRIBUTE', 'mail');
$GLOBALS['ldap'] = new LDAPInterface();
function ldapauth_help($section) {
$output = '';
switch ($section) {
case 'admin/modules#name':
$output = 'ldapauth';
break;
case 'admin/modules#description':
case 'admin/help#ldapauth':
$output = t('Enables authentication via LDAP.');
break;
case 'user/help#ldapauth':
$output = t('Login using LDAP.');
break;
}
return $output;
}
function ldapauth_info($field = 0) {
$info['name'] = 'LDAP authentication';
$info['protocol'] = 'LDAP';
if ($field) {
return $info[$field];
}
else {
return $info;
}
}
function ldapauth_menu($may_cache) {
$items = array();
if ($may_cache) {
$items[] = array(
'path' => 'admin/settings/ldapauth',
'title' => t('LDAP Integration'),
'callback' => 'ldapauth_admin_list',
'access' => user_access('access administration pages'),
'description' => t('Configure LDAP settings'),
);
$items[] = array(
'path' => 'admin/settings/ldapauth/list',
'title' => t('List'),
'callback' => 'ldapauth_admin_list',
'access' => user_access('access administration pages'),
'type' => MENU_DEFAULT_LOCAL_TASK,
);
$items[] = array(
'path' => 'admin/settings/ldapauth/add',
'title' => t('Configure LDAP Server'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'ldapauth_admin_form',
),
'type' => MENU_LOCAL_TASK,
'weight' => 1,
'access' => user_access('access administration pages'),
);
$items[] = array(
'path' => 'admin/settings/ldapauth/options',
'title' => t('System Wide Options'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'ldapauth_admin_options',
),
'type' => MENU_LOCAL_TASK,
'weight' => 2,
'access' => user_access('access administration pages'),
);
$items[] = array(
'path' => 'admin/settings/ldapauth/edit',
'title' => t('Configure LDAP Server'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'ldapauth_admin_form',
),
'type' => MENU_CALLBACK,
'access' => user_access('access administration pages'),
);
$items[] = array(
'path' => 'admin/settings/ldapauth/delete',
'title' => t('Delete LDAP Server'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'ldapauth_admin_delete',
),
'type' => MENU_CALLBACK,
'access' => user_access('access administration pages'),
);
$items[] = array(
'path' => 'admin/settings/ldapauth/activate',
'title' => t('Activate LDAP Source'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'ldapauth_admin_activate',
),
'type' => MENU_CALLBACK,
'access' => user_access('access administration pages'),
);
$items[] = array(
'path' => 'admin/settings/ldapauth/deactivate',
'title' => t('De-Activate LDAP Source'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'ldapauth_admin_deactivate',
),
'type' => MENU_CALLBACK,
'access' => user_access('access administration pages'),
);
}
return $items;
}
function ldapauth_perm() {
return array(
'access administration pages',
);
}
function ldapauth_cron() {
cache_clear_all(NULL, 'cache_filter');
}
function ldapauth_admin_list() {
$sql = "SELECT sid, name, status FROM {ldapauth} ORDER BY sid";
$result = db_query($sql);
$rows = array();
while ($row = db_fetch_object($result)) {
if ($row->status) {
$link_text = "de-activate";
$link_comp = "deactivate";
}
else {
$link_text = "activate";
$link_comp = "activate";
}
$rows[] = array(
$row->name,
l(t('edit'), 'admin/settings/ldapauth/edit/' . $row->name),
l(t('!link_text', array(
'!link_text' => $link_text,
)), 'admin/settings/ldapauth/' . $link_comp . '/' . $row->name),
l(t('delete'), 'admin/settings/ldapauth/delete/' . $row->name),
);
}
$header = array(
t('LDAP Config'),
array(
'data' => t('Operations'),
'colspan' => '3',
),
);
return theme('table', $header, $rows);
}
function ldapauth_admin_deactivate($ldap_name) {
$ldap_name = arg(4);
db_query("UPDATE {ldapauth} SET status = '%s'WHERE name = '%s'", "", $ldap_name);
drupal_set_message(t('LDAP Configuration %config has been de-activated.', array(
'%config' => $ldap_name,
)));
watchdog('ldap', t('ldapauth: ldap config %config de-activated.', array(
'%config' => $ldap_name,
)));
drupal_goto('admin/settings/ldapauth');
}
function ldapauth_admin_activate() {
$ldap_name = arg(4);
db_query("UPDATE {ldapauth} SET status = '%d'WHERE name = '%s'", "1", $ldap_name);
drupal_set_message(t('LDAP Configuration %config has been activated.', array(
'%config' => $ldap_name,
)));
watchdog('ldap', t('ldapauth: ldap config %config activated.', array(
'%config' => $ldap_name,
)));
drupal_goto('admin/settings/ldapauth');
}
function ldapauth_admin_options() {
$script = '
$(document).ready( function(){
$("input#edit-ldap-disable-request-new-password").click( function(){
$("textarea#edit-ldap-user-pass-form").attr("disabled", (! $(this).attr("checked")));
});
$("input#ldap-restore-defaults").click(function(){
$("form")[0].submit();
});
})';
drupal_add_js($script, 'inline');
$options_login_process = array(
LDAP_FIRST_DRUPAL => t('Drupal\'s DB first, then LDAP directory'),
LDAP_FIRST_LDAP => t('LDAP directory only'),
);
$form['system-options'] = array(
'#type' => 'fieldset',
'#title' => t('Authentication mode'),
'#description' => t('<p><strong>NOTE: These settings have no effect on Drupal user with uid 1. The admin account never uses LDAP.</p>'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['system-options']['ldap_login_process'] = array(
'#type' => 'radios',
'#title' => t('Choose authentication mode'),
'#description' => t('<p>Pick the mode based on the types of user accounts and other configuration decisions...</p>'),
'#default_value' => variable_get('ldap_login_process', LDAP_FIRST_DRUPAL),
'#options' => $options_login_process,
'#required' => true,
);
$form['security-options'] = array(
'#type' => 'fieldset',
'#title' => t('Security Options'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['security-options']['ldap_forget_passwords'] = array(
'#type' => 'checkbox',
'#title' => t('Do not store users\' passwords during sessions'),
'#return_value' => true,
'#default_value' => variable_get('ldap_forget_passwords', true),
'#description' => t('<p>If you use the <strong>ldapdata</strong> module and want to allow users to modify their LDAP attributes, you have two options:</p><ul><li>Setup a special ldap manager DN that has (limited) permissions to edit the requisite LDAP records - using this method means Drupal\'s built in password reset will work;</li> <li>or allow this module to store the user\'s LDAP password, in clear text, during the session;</li></ul><p>Physically, these passwords are stored in the Drupal\'s session table in clear text. This is not ideal and is not the recomended configuration.</p><p>Unless you need to use the latter configuration, leave this checked.</p>'),
);
$form['ui-options'] = array(
'#type' => 'fieldset',
'#title' => t('User Interface Options'),
'#description' => t('<p>Only effects ldap authenticated users, by altering some Drupal user interface forms. This has no effect on reading or writing LDAP attributes.'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['ui-options']['ldap_disable_request_new_password'] = array(
'#type' => 'checkbox',
'#title' => t('Disable access to <em>Request new password</em> form'),
'#return_value' => TRUE,
'#default_value' => variable_get('ldap_disable_request_new_password', FALSE),
'#description' => t('Disable link to Drupal\'s built-in "Request new password" form from user login block. If this is checked, users can still access the "Request new password" form directly or from the user login form. This option effects the UI for anonymous users.'),
);
$form['ui-options']['ldap_user_pass_form'] = array(
'#type' => 'textarea',
'#title' => t('New password reset message'),
'#default_value' => variable_get('ldap_user_pass_form', '<h2>Form disabled by administrator.<h2>'),
'#cols' => 45,
'#rows' => 3,
'#maxlength' => 250,
'#disabled' => !variable_get('ldap_disable_request_new_password', FALSE),
'#description' => t('<p>Because the form is still accessible, enter substitute instructions for "Request new password" form page. Ideally there should be some instructions or a link on how to replace passwords. If this is left empty, the default Drupal form WILL BE USED.</p>'),
);
$form['ui-options']['ldap_disable_user_request_password'] = array(
'#type' => 'checkbox',
'#title' => t('Disable access password reset fields'),
'#default_value' => variable_get('ldap_disable_user_request_password', FALSE),
'#description' => t('<p>Disable Drupal\'s built in password change text boxes on the user edit form. If checked, the password change fields will disappear for LDAP authenticated users.</p>'),
);
$form['ldap_restore_defaults'] = array(
'#type' => 'checkbox',
'#title' => t('Reset to default values'),
'#default_value' => variable_get('ldap_restore_defaults', FALSE),
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => 'Save configuration',
);
return $form;
}
function ldapauth_admin_options_submit($form_id, $form_values) {
if ($form_values['ldap_restore_defaults']) {
variable_del('ldap_disable_request_new_password');
variable_del('ldap_user_pass_form');
variable_del('ldap_disable_user_request_password');
variable_del('ldap_forget_passwords');
variable_del('ldap_login_process');
$msg = 'System wide LDAP settings reset to defaults';
}
else {
variable_set('ldap_user_pass_form', $form_values['ldap_user_pass_form']);
variable_set('ldap_disable_request_new_password', $form_values['ldap_disable_request_new_password']);
variable_set('ldap_forget_passwords', $form_values['ldap_forget_passwords']);
variable_set('ldap_login_process', $form_values['ldap_login_process']);
variable_set('ldap_disable_user_request_password', $form_values['ldap_disable_user_request_password']);
$msg = 'System wide LDAP settings saved';
}
drupal_set_message($msg);
return 'admin/settings/ldapauth/options';
}
function ldapauth_admin_form() {
$ldap_name = arg(4);
if (arg(3) == "edit" && $ldap_name != NULL) {
$edit = db_fetch_array(db_query("SELECT * FROM {ldapauth} WHERE name = '%s'", $ldap_name));
$form['old-name'] = array(
'#type' => 'hidden',
'#value' => $ldap_name,
);
}
$form['server-settings'] = array(
'#type' => 'fieldset',
'#title' => t('Server settings'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['server-settings']['name'] = array(
'#type' => 'textfield',
'#title' => t('Name'),
'#default_value' => $edit['name'],
'#description' => t('Choose a <em><strong>unique</strong></em> name for this server configuration.'),
'#size' => 50,
'#maxlength' => 255,
'#required' => TRUE,
);
$form['server-settings']['server'] = array(
'#type' => 'textfield',
'#title' => t('LDAP server'),
'#default_value' => $edit['server'],
'#size' => 50,
'#maxlength' => 255,
'#description' => t('<p>The domain name or IP address of your LDAP Server.</p>'),
'#required' => TRUE,
);
$_port = $edit['port'] == '0' ? "389" : $edit['port'];
$form['server-settings']['port'] = array(
'#type' => 'textfield',
'#title' => t('LDAP port'),
'#default_value' => $_port,
'#size' => 50,
'#maxlength' => 255,
'#description' => t('<p>The TCP/IP port on the above server which accepts LDAP connections. Must be an integer.</p>'),
);
$form['server-settings']['tls'] = array(
'#type' => 'checkbox',
'#title' => t('Use Start-TLS'),
'#return_value' => 1,
'#default_value' => $edit['tls'],
'#description' => t('<p>Secure the connection between the Drupal and the LDAP servers using TLS.<br /><em>Note: To use START-TLS, you must set the LDAP Port to 389.</em></p>'),
);
$form['server-settings']['encrypted'] = array(
'#type' => 'checkbox',
'#title' => t('Store passwords in encrypted form'),
'#return_value' => 1,
'#default_value' => $edit['encrypted'],
'#description' => t('<p>Secure the password in LDAP by storing it MD5 encrypted (use with care, as some LDAP directories may do this automatically, what would cause logins problems).</p>'),
);
$form['login-procedure'] = array(
'#type' => 'fieldset',
'#title' => 'Login procedure',
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form['login-procedure']['basedn'] = array(
'#type' => 'textarea',
'#title' => t('Base DNs'),
'#default_value' => $edit['basedn'],
'#cols' => 50,
'#rows' => 6,
'#description' => t('<p>Base DNs for users. Enter one per line in case you need several of them.</p>'),
);
$form['login-procedure']['user_attr'] = array(
'#type' => 'textfield',
'#title' => t('UserName attribute'),
'#default_value' => $edit['user_attr'],
'#size' => 50,
'#maxlength' => 255,
'#description' => t('<p>The attribute that holds the users\' login name. (eg. <em style="font-style: normal; padding: 1px 3px; border: 1px solid #8888CC; background-color: #DDDDFF">cn</em> for eDir or <em style="font-style: normal; padding: 1px 3px; border: 1px solid #8888CC; background-color: #DDDDFF">sAMAccountName</em> for Active Directory).</p>'),
);
$form['login-procedure']['mail_attr'] = array(
'#type' => 'textfield',
'#title' => t('Email attribute'),
'#default_value' => $edit['mail_attr'],
'#size' => 50,
'#maxlength' => 255,
'#description' => t('<p>The attribute that holds the users\' email address. (eg. <em style="font-style: normal; padding: 1px 3px; border: 1px solid #8888CC; background-color: #DDDDFF">mail</em>).</p>'),
);
$form['advanced'] = array(
'#type' => 'fieldset',
'#title' => 'Advanced configuration',
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form['advanced']['ldap-note'] = array(
'#value' => '<p>The process of authentication starts by establishing an anonymous connection to the LDAP directory and looking up for the user on it. Once this user is found, LDAP authentication is performed on them.</p><p>However, some LDAP configurations (specially common in <strong>Active Directory</strong> setups) restrict anonymous searches.</p><p>If your LDAP setup does not allow anonymous searches, or these are restricted in such a way that login names for users cannot be retrieved as a result of them, then you have to specify here a DN//password pair that will be used for these searches.</p><p>For security reasons, this pair should belong to an LDAP account with stripped down permissions.</p>',
);
$form['advanced']['binddn'] = array(
'#type' => 'textfield',
'#title' => t('DN for non-anonymous search'),
'#default_value' => $edit['binddn'],
'#size' => 50,
'#maxlength' => 255,
);
if ($edit['bindpw_clear'] || !$edit['bindpw']) {
$form['advanced']['bindpw'] = array(
'#type' => 'password',
'#title' => t('Password for non-anonymous search'),
'#size' => 50,
'#maxlength' => 255,
);
}
else {
$form['advanced']['bindpw_clear'] = array(
'#type' => 'checkbox',
'#title' => t('Clear current password'),
'#default_value' => false,
);
}
$form['submit'] = array(
'#type' => 'submit',
'#value' => 'Save configuration',
);
return $form;
}
function ldapauth_admin_form_submit($form_id, $form_values) {
if (arg(3) == 'add') {
if (db_fetch_object(db_query("SELECT name FROM {ldapauth} WHERE name = '%s'", $form_values['name']))) {
form_set_error('name', t('An LDAP config with that name already exists.'));
}
db_query("INSERT INTO {ldapauth} (name, status, server, port, tls, encrypted, basedn, user_attr, mail_attr, binddn, bindpw) VALUES ('%s', '%d', '%s', '%d', '%d', '%d', '%s', '%s', '%s', '%s', '%s')", $form_values['name'], 1, $form_values['server'], $form_values['port'], $form_values['tls'], $form_values['encrypted'], $form_values['basedn'], $form_values['user_attr'], $form_values['mail_attr'], $form_values['binddn'], $form_values['bindpw']);
drupal_set_message(t('LDAP Configuration %config has been added.', array(
'%config' => $form_values['name'],
)));
watchdog('ldap', t('ldapauth: ldap config %config added.', array(
'%config' => $form_values['name'],
)));
}
else {
if (!$form_values['bindpw_clear'] && $form_values['bindpw']) {
db_query("UPDATE {ldapauth} SET name = '%s', server = '%s', port = '%d', tls = '%d', encrypted = '%d', basedn = '%s', user_attr = '%s', mail_attr = '%s', binddn = '%s', bindpw = '%s', bindpw_clear = '%d' WHERE name = '%s'", $form_values['name'], $form_values['server'], $form_values['port'], $form_values['tls'], $form_values['encrypted'], $form_values['basedn'], $form_values['user_attr'], $form_values['mail_attr'], $form_values['binddn'], $form_values['bindpw'], $form_values['bindpw_clear'], $form_values['old-name']);
}
else {
db_query("UPDATE {ldapauth} SET name = '%s', server = '%s', port = '%d', tls = '%d', encrypted = '%d', basedn = '%s', user_attr = '%s', mail_attr = '%s', binddn = '%s', bindpw_clear = '%d' WHERE name = '%s'", $form_values['name'], $form_values['server'], $form_values['port'], $form_values['tls'], $form_values['encrypted'], $form_values['basedn'], $form_values['user_attr'], $form_values['mail_attr'], $form_values['binddn'], $form_values['bindpw_clear'], $form_values['old-name']);
}
drupal_set_message(t('LDAP Configuration %config has been updated.', array(
'%config' => $form_values['name'],
)));
watchdog('ldap', t('ldapauth: ldap config %config updated.', array(
'%config' => $form_values['name'],
)));
}
return 'admin/settings/ldapauth';
}
function ldapauth_admin_delete() {
$ldap_name = arg(4);
if (!$ldap_name) {
drupal_goto('admin/settings/ldapauth');
}
if ($result = db_fetch_object(db_query("SELECT name FROM {ldapauth} WHERE name = '%s'", $ldap_name))) {
return confirm_form(array(), t('Are you sure you want to delete the ldap configration named <em><strong>%server</strong></em>?', array(
'%server' => $ldap_name,
)), 'admin/settings/ldapauth', t('<p>This action cannot be undone.</p>'), t('Delete'), t('Cancel'));
}
else {
drupal_set_message(t('No such LDAP config: %config', array(
'%config' => $ldap_name,
)));
drupal_goto('admin/settings/ldapauth');
}
}
function ldapauth_admin_delete_submit($form_id, $form_values) {
if ($form_values['confirm']) {
db_query("DELETE FROM {ldapauth} WHERE name = '%s'", arg(4));
drupal_set_message(t('LDAP Configuration %config has been deleted.', array(
'%config' => $form_values['name'],
)));
watchdog('ldap', t('ldapauth: ldap config %config deleted.', array(
'%config' => $form_values['name'],
)));
}
return 'admin/settings/ldapauth';
}
function ldapauth_auth($name, $pass, $server) {
global $ldap;
$ok = false;
$login_name = $server ? "{$name}@{$server}" : $name;
if (function_exists('ldapauth_transform_login_name')) {
$login_name = call_user_func('ldapauth_transform_login_name', $login_name);
}
$dn = _ldapauth_login2dn($login_name);
if ($dn && $pass) {
$ok = $ldap
->connect($dn, $pass);
}
if ($ok && function_exists('ldapauth_user_filter')) {
$ok = $ok && call_user_func('ldapauth_user_filter', $ldap
->retrieveAttributes($dn));
}
return $ok;
}
function ldapauth_exit() {
if (variable_get('ldap_forget_passwords', false) && isset($_SESSION['ldap_login'])) {
unset($_SESSION['ldap_login']);
}
}
function ldapauth_user($op, &$edit, &$edit_user, $category = NULL) {
global $user;
switch ($op) {
case 'login':
if ($user->ldap_authentified) {
db_query("UPDATE {authmap} SET module = 'ldapauth' WHERE uid = '%d'", $user->uid);
return;
}
break;
case 'form':
if (user_access('administer users')) {
$form['ldap_settings'] = array(
'#type' => 'fieldset',
'#title' => 'LDAP authentication settings',
'#collapsible' => TRUE,
);
$form['ldap_settings']['ldap_authentified'] = array(
'#type' => 'checkbox',
'#title' => 'Authenticate via LDAP',
'#default_value' => $edit_user->ldap_authentified,
);
$form['ldap_settings']['ldap_dn'] = array(
'#type' => 'textfield',
'#title' => 'LDAP User DN',
'#default_value' => $edit_user->ldap_dn,
);
return $form;
}
break;
}
}
function _ldapauth_init($config) {
global $ldap;
$row = db_fetch_object(db_query("SELECT * FROM {ldapauth} WHERE name = '%s'", $config));
$ldap
->setOption('name', $row->name);
$ldap
->setOption('server', $row->server);
$ldap
->setOption('port', $row->port);
$ldap
->setOption('tls', $row->tls);
$ldap
->setOption('encrypted', $row->encrypted);
$ldap
->setOption('basedn', $row->basedn);
$ldap
->setOption('user_attr', $row->user_attr);
$ldap
->setOption('mail_attr', $row->mail_attr);
return;
}
function _ldapauth_login2dn($login) {
global $ldap;
$ret = '';
$user = _ldapauth_user_lookup($login);
if ($user) {
$ret = $user['dn'];
}
return $ret;
}
function _ldapauth_user_lookup($name) {
global $ldap;
$ret = null;
if (!$ldap) {
return;
}
$row = db_fetch_object(db_query("SELECT binddn, bindpw FROM {ldapauth} WHERE name = '%s'", $ldap
->getOption('name')));
$dn = $row->binddn;
$pass = $row->bindpw;
$ldap
->connect($dn, $pass);
$possible_base_dns = explode("\r\n", $ldap
->getOption('basedn'));
foreach ($possible_base_dns as $base_dn) {
if (!$base_dn) {
continue;
}
$name_attr = $ldap
->getOption('user_attr') ? $ldap
->getOption('user_attr') : LDAP_DEFAULT_USER_ATTRIBUTE;
$filter = "{$name_attr}={$name}";
$result = $ldap
->search($base_dn, $filter);
if (!$result) {
continue;
}
$num_matches = $result['count'];
if ($num_matches != 1) {
watchdog('user', "Error: {$num_matches} users found with {$filter} under {$base_dn}", WATCHDOG_ERROR);
continue;
}
$match = $result[0];
if (!isset($match[$name_attr][0])) {
$name_attr = strtolower($name_attr);
if (!isset($match[$name_attr][0])) {
continue;
}
}
$ok = false;
foreach ($match[$name_attr] as $value) {
if (strtolower($value) == strtolower($name)) {
$ok = true;
break;
}
}
if (!$ok) {
continue;
}
$ret = $match;
}
return $ret;
}
function ldapauth_form_alter($form_id, &$form) {
global $user;
if (isset($form['#validate']['user_login_validate'])) {
$form['#validate'] = array(
'ldapauth_login_validate' => array(),
);
}
switch ($form_id) {
case 'user_login_block':
if (variable_get('ldap_disable_request_new_password', FALSE)) {
unset($form['links']);
}
break;
case 'user_pass':
if (variable_get('ldap_disable_request_new_password', FALSE) && variable_get('ldap_user_pass_form', FALSE)) {
$form = array(
'#value' => t(variable_get('ldap_user_pass_form', '<h2>Form disabled by administrator.</h2>')),
);
}
break;
case 'user_edit':
if (variable_get('ldap_disable_user_request_password', FALSE) && $user->ldap_authentified) {
unset($form['account']['pass']);
}
break;
}
}
function ldapauth_login_validate($form_id, $form_values) {
global $user;
if (isset($form_values['name'])) {
if (user_is_blocked($form_values['name'])) {
form_set_error('login', t('The username %name has been blocked.', array(
'%name' => theme('placeholder', $form_values['name']),
)));
}
else {
if (drupal_is_denied('user', $form_values['name'])) {
form_set_error('login', t('The name %name is a reserved username.', array(
'%name' => theme('placeholder', $form_values['name']),
)));
}
else {
if ($form_values['pass']) {
$user = _ldapauth_user_authenticate($form_values['name'], trim($form_values['pass']));
if (!$user->uid) {
form_set_error('login', t('Sorry. Unrecognized username or password.') . ' ' . l(t('Have you forgotten your password?'), 'user/password'));
watchdog('user', t('Login attempt failed for %user: %error.', array(
'%user' => theme('placeholder', $form_values['name']),
)));
}
}
}
}
}
}
function _ldapauth_user_authenticate($name, $pass) {
global $user, $ldap;
$result = db_query("SELECT uid FROM {users} WHERE name = '%s'", $name);
if (($_user = db_fetch_object($result)) && $_user->uid == 1) {
$user = user_authenticate($name, $pass);
}
else {
if (!variable_get('ldap_login_process', LDAP_FIRST_LDAP)) {
$local_user_count = db_num_rows(db_query("SELECT name FROM {users} WHERE data NOT LIKE '%%ldap\\_authentified%%' AND name='%s'", $name));
if ($local_user_count > 0) {
$ldap = "";
$user = user_authenticate($name, $pass);
}
else {
if (_ldapauth_check_ldap($name, $pass)) {
$user = _ldapauth_save_user($name, $pass);
}
}
}
else {
if (_ldapauth_check_ldap($name, $pass)) {
$user = _ldapauth_save_user($name, $pass);
}
}
}
return $user;
}
function _ldapauth_check_ldap($name, $pass) {
global $ldap;
$login_ok = false;
$result = db_query("SELECT name FROM {ldapauth} WHERE status = '%d' ORDER BY sid", 1);
while ($row = db_fetch_object($result)) {
_ldapauth_init($row->name);
$config_name = $ldap
->getOption('name');
if ($server = strrchr($name, '@')) {
$login_name = substr($name, 0, strlen($name) - strlen($server));
$server = substr($server, 1);
}
else {
$login_name = $name;
$server = '';
}
if (preg_match('/@$/', $name)) {
$login_name = $name;
}
if (ldapauth_auth($name, $pass, $server)) {
$login_ok = true;
break;
}
}
return $login_ok;
}
function _ldapauth_save_user($login_string, $pass) {
global $user, $ldap;
$account = user_load(array(
'name' => $login_string,
));
$ldap_user = _ldapauth_user_lookup($login_string);
if ($ldap_user) {
$dn = $ldap_user['dn'];
}
if (!isset($account->uid)) {
if (variable_get('ldap_login_process', LDAP_FIRST_LDAP) == LDAP_FIRST_LDAP) {
$pass = user_password(20);
}
if (key_exists($ldap
->getOption('mail_attr') ? $ldap
->getOption('mail_attr') : LDAP_DEFAULT_MAIL_ATTRIBUTE, $ldap_user)) {
$mail = $ldap_user[$ldap
->getOption('mail_attr')][0];
}
else {
$mail = "";
}
$init = $dn;
$userinfo = array(
'name' => $login_string,
'pass' => $pass,
'mail' => $mail,
'init' => $init,
'status' => 1,
'authname_ldapauth' => $login_string,
'roles' => array(
DRUPAL_AUTHENTICATED_RID,
),
'ldap_authentified' => TRUE,
'ldap_dn' => $dn,
);
$user = user_save('', $userinfo);
watchdog('user', t('New external user - ldapauth: %user using module %module.', array(
'%user' => theme('placeholder', $login_string),
'%module' => theme('placeholder', 'ldapauth'),
)), WATCHDOG_NOTICE, l(t('edit'), 'user/' . $user->uid . '/edit'));
}
else {
if (!$account->ldap_authentified) {
drupal_set_message(t('Another user already exists in this system with the same login name. You should contact the system\'s administrator in order to solve this conflict.'), 'error');
watchdog('user', t("LDAP user with DN {$dn} has a naming conflict with non-LDAP user {$account->name}"), WATCHDOG_ERROR);
module_invoke_all('user', 'logout', NULL, $user);
}
else {
$user = $account;
}
}
$config_name = $ldap
->getOption('name');
user_save($user, array(
'ldap_config' => $config_name,
));
$_SESSION['ldap_login']['dn'] = $dn;
$_SESSION['ldap_login']['pass'] = $pass;
return $user;
}
