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242 lines
8 KiB
PHP
242 lines
8 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Model;
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use App\Models\User;
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use App\Models\Setting;
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use Exception;
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use Input;
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use Log;
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class Ldap extends Model
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{
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/**
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* Makes a connection to LDAP using the settings in Admin > Settings.
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*
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* @author [A. Gianotto] [<snipe@snipe.net>]
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* @since [v3.0]
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* @return connection
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*/
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public static function connectToLdap()
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{
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$ldap_host = Setting::getSettings()->ldap_server;
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$ldap_version = Setting::getSettings()->ldap_version;
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$ldap_server_cert_ignore = Setting::getSettings()->ldap_server_cert_ignore;
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// If we are ignoring the SSL cert we need to setup the environment variable
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// before we create the connection
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if ($ldap_server_cert_ignore) {
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putenv('LDAPTLS_REQCERT=never');
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}
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// Connecting to LDAP
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$connection = @ldap_connect($ldap_host) or die("Could not connect to {$ldap_host}");
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if (!$connection) {
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throw new Exception('Could not connect to LDAP server at '.$ldap_host.': '.ldap_error($connection));
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}
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// Needed for AD
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ldap_set_option($connection, LDAP_OPT_REFERRALS, 0);
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ldap_set_option($connection, LDAP_OPT_PROTOCOL_VERSION, $ldap_version);
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return $connection;
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}
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/**
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* Binds/authenticates the user to LDAP, and returns their attributes.
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*
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* @author [A. Gianotto] [<snipe@snipe.net>]
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* @since [v3.0]
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* @param $username
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* @param $password
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* @param bool|false $user
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* @return bool true if the username and/or password provided are valid
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* false if the username and/or password provided are invalid
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* array of ldap_attributes if $user is true
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*
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*/
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static function findAndBindUserLdap($username, $password) {
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$connection = Ldap::connectToLdap();
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$ldap_username_field = Setting::getSettings()->ldap_username_field;
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$baseDn = Setting::getSettings()->ldap_basedn;
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if (Setting::getSettings()->is_ad=='1') {
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// In case they haven't added an AD domain
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if (Setting::getSettings()->ad_domain='') {
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$userDn = $username.'@'.Setting::getSettings()->email_domain;
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} else {
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$userDn = $username.'@'.Setting::getSettings()->ad_domain;
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}
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} else {
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$userDn = $ldap_username_field.'='.$username.','.Setting::getSettings()->ldap_basedn;
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}
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$filterQuery = Setting::getSettings()->ldap_auth_filter_query . $username;
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if (!$ldapbind = @ldap_bind($connection, $userDn, $password)) {
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return false;
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}
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if (!$results = ldap_search($connection, $baseDn, $filterQuery)) {
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throw new Exception('Could not search LDAP: ');
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}
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if (!$entry = ldap_first_entry($connection, $results)) {
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return false;
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}
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if (!$user = array_change_key_case(ldap_get_attributes($connection, $entry), CASE_LOWER)) {
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return false;
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}
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return $user;
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}
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/**
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* Binds/authenticates an admin to LDAP for LDAP searching/syncing.
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* Here we also return a better error if the app key is donked.
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*
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* @author [A. Gianotto] [<snipe@snipe.net>]
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* @since [v3.0]
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* @param bool|false $user
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* @return bool true if the username and/or password provided are valid
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* false if the username and/or password provided are invalid
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*
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*/
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static function bindAdminToLdap($connection) {
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$ldap_username = Setting::getSettings()->ldap_uname;
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// Lets return some nicer messages for users who donked their app key, and disable LDAP
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try {
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$ldap_pass = \Crypt::decrypt(Setting::getSettings()->ldap_pword);
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} catch (Exception $e) {
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throw new Exception('Your app key has changed! Could not decrypt LDAP password using your current app key, so LDAP authentication has been disabled. Login with a local account, update the LDAP password and re-enable it in Admin > Settings.');
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}
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if (!$ldapbind = @ldap_bind($connection, $ldap_username, $ldap_pass)) {
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throw new Exception('Could not bind to LDAP: '.ldap_error($connection));
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}
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}
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/**
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* Create user from LDAP attributes
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*
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* @param $ldapatttibutes
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* @return array|bool
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*/
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static function createUserFromLdap($ldapatttibutes)
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{
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//Get LDAP attribute config
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$ldap_result_username = Setting::getSettings()->ldap_username_field;
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$ldap_result_emp_num = Setting::getSettings()->ldap_emp_num;
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$ldap_result_last_name = Setting::getSettings()->ldap_lname_field;
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$ldap_result_first_name = Setting::getSettings()->ldap_fname_field;
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$ldap_result_email = Setting::getSettings()->ldap_email;
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// Get LDAP user data
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$item = array();
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$item["username"] = isset($ldapatttibutes[$ldap_result_username][0]) ? $ldapatttibutes[$ldap_result_username][0] : "";
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$item["employee_number"] = isset($ldapatttibutes[$ldap_result_emp_num][0]) ? $ldapatttibutes[$ldap_result_emp_num][0] : "";
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$item["lastname"] = isset($ldapatttibutes[$ldap_result_last_name][0]) ? $ldapatttibutes[$ldap_result_last_name][0] : "";
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$item["firstname"] = isset($ldapatttibutes[$ldap_result_first_name][0]) ? $ldapatttibutes[$ldap_result_first_name][0] : "";
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$item["email"] = isset($ldapatttibutes[$ldap_result_email][0]) ? $ldapatttibutes[$ldap_result_email][0] : "" ;
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// Create user from LDAP data
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if (!empty($item["username"])) {
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$newuser = new User;
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$newuser->first_name = $item["firstname"];
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$newuser->last_name = $item["lastname"];
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$newuser->username = $item["username"];
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$newuser->email = $item["email"];
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$newuser->password = bcrypt(Input::get("password"));
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$newuser->activated = 1;
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$newuser->permissions = '{"user": 1}';
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$newuser->ldap_import = 1;
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$newuser->notes = 'Imported on first login from LDAP';
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//dd($newuser);
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if ($newuser->save()) {
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return true;
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} else {
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LOG::debug('Could not create user.'.$newuser->getErrors());
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exit;
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}
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}
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return false;
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}
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static function findLdapUsers() {
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$ldapconn = Ldap::connectToLdap();
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$ldap_bind = Ldap::bindAdminToLdap($ldapconn);
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$base_dn = Setting::getSettings()->ldap_basedn;
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$filter = Setting::getSettings()->ldap_filter;
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// Set up LDAP pagination for very large databases
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// @author Richard Hofman
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$page_size = 500;
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$cookie = '';
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$result_set = array();
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$global_count = 0;
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// Perform the search
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do {
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// Paginate (non-critical, if not supported by server)
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ldap_control_paged_result($ldapconn, $page_size, false, $cookie);
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$search_results = ldap_search($ldapconn, $base_dn, '('.$filter.')');
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if (!$search_results) {
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return redirect()->route('users')->with('error', trans('admin/users/message.error.ldap_could_not_search').ldap_error($ldapconn));
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}
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// Get results from page
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$results = ldap_get_entries($ldapconn, $search_results);
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if (!$results) {
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return redirect()->route('users')->with('error', trans('admin/users/message.error.ldap_could_not_get_entries').ldap_error($ldapconn));
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}
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// Add results to result set
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$global_count += $results['count'];
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$result_set = array_merge($result_set, $results);
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ldap_control_paged_result_response($ldapconn, $search_results, $cookie);
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} while ($cookie !== null && $cookie != '');
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// Clean up after search
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$result_set['count'] = $global_count;
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$results = $result_set;
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ldap_control_paged_result($ldapconn, 0);
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return $results;
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}
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}
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