installed dokuwiki, added to navbar, updated news

1 files changed, 730 insertions, 0 deletions

diff --git a/wiki/lib/plugins/authad/auth.php b/wiki/lib/plugins/authad/auth.php
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+++ b/wiki/lib/plugins/authad/auth.php
@@ -0,0 +1,730 @@
+<?php
+// must be run within Dokuwiki
+if(!defined('DOKU_INC')) die();
+
+require_once(DOKU_PLUGIN.'authad/adLDAP/adLDAP.php');
+require_once(DOKU_PLUGIN.'authad/adLDAP/classes/adLDAPUtils.php');
+
+/**
+ * Active Directory authentication backend for DokuWiki
+ *
+ * This makes authentication with a Active Directory server much easier
+ * than when using the normal LDAP backend by utilizing the adLDAP library
+ *
+ * Usage:
+ *   Set DokuWiki's local.protected.php auth setting to read
+ *
+ *   $conf['authtype']       = 'authad';
+ *
+ *   $conf['plugin']['authad']['account_suffix']     = '@my.domain.org';
+ *   $conf['plugin']['authad']['base_dn']            = 'DC=my,DC=domain,DC=org';
+ *   $conf['plugin']['authad']['domain_controllers'] = 'srv1.domain.org,srv2.domain.org';
+ *
+ *   //optional:
+ *   $conf['plugin']['authad']['sso']                = 1;
+ *   $conf['plugin']['authad']['admin_username']     = 'root';
+ *   $conf['plugin']['authad']['admin_password']     = 'pass';
+ *   $conf['plugin']['authad']['real_primarygroup']  = 1;
+ *   $conf['plugin']['authad']['use_ssl']            = 1;
+ *   $conf['plugin']['authad']['use_tls']            = 1;
+ *   $conf['plugin']['authad']['debug']              = 1;
+ *   // warn user about expiring password this many days in advance:
+ *   $conf['plugin']['authad']['expirywarn']         = 5;
+ *
+ *   // get additional information to the userinfo array
+ *   // add a list of comma separated ldap contact fields.
+ *   $conf['plugin']['authad']['additional'] = 'field1,field2';
+ *
+ * @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author  James Van Lommel <jamesvl@gmail.com>
+ * @link    http://www.nosq.com/blog/2005/08/ldap-activedirectory-and-dokuwiki/
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ * @author  Jan Schumann <js@schumann-it.com>
+ */
+class auth_plugin_authad extends DokuWiki_Auth_Plugin {
+
+    /**
+     * @var array hold connection data for a specific AD domain
+     */
+    protected $opts = array();
+
+    /**
+     * @var array open connections for each AD domain, as adLDAP objects
+     */
+    protected $adldap = array();
+
+    /**
+     * @var bool message state
+     */
+    protected $msgshown = false;
+
+    /**
+     * @var array user listing cache
+     */
+    protected $users = array();
+
+    /**
+     * @var array filter patterns for listing users
+     */
+    protected $_pattern = array();
+
+    protected $_actualstart = 0;
+
+    protected $_grpsusers = array();
+
+    /**
+     * Constructor
+     */
+    public function __construct() {
+        global $INPUT;
+        parent::__construct();
+
+        // we load the config early to modify it a bit here
+        $this->loadConfig();
+
+        // additional information fields
+        if(isset($this->conf['additional'])) {
+            $this->conf['additional'] = str_replace(' ', '', $this->conf['additional']);
+            $this->conf['additional'] = explode(',', $this->conf['additional']);
+        } else $this->conf['additional'] = array();
+
+        // ldap extension is needed
+        if(!function_exists('ldap_connect')) {
+            if($this->conf['debug'])
+                msg("AD Auth: PHP LDAP extension not found.", -1);
+            $this->success = false;
+            return;
+        }
+
+        // Prepare SSO
+        if(!empty($_SERVER['REMOTE_USER'])) {
+
+            // make sure the right encoding is used
+            if($this->getConf('sso_charset')) {
+                $_SERVER['REMOTE_USER'] = iconv($this->getConf('sso_charset'), 'UTF-8', $_SERVER['REMOTE_USER']);
+            } elseif(!utf8_check($_SERVER['REMOTE_USER'])) {
+                $_SERVER['REMOTE_USER'] = utf8_encode($_SERVER['REMOTE_USER']);
+            }
+
+            // trust the incoming user
+            if($this->conf['sso']) {
+                $_SERVER['REMOTE_USER'] = $this->cleanUser($_SERVER['REMOTE_USER']);
+
+                // we need to simulate a login
+                if(empty($_COOKIE[DOKU_COOKIE])) {
+                    $INPUT->set('u', $_SERVER['REMOTE_USER']);
+                    $INPUT->set('p', 'sso_only');
+                }
+            }
+        }
+
+        // other can do's are changed in $this->_loadServerConfig() base on domain setup
+        $this->cando['modName'] = (bool)$this->conf['update_name'];
+        $this->cando['modMail'] = (bool)$this->conf['update_mail'];
+        $this->cando['getUserCount'] = true;
+    }
+
+    /**
+     * Load domain config on capability check
+     *
+     * @param string $cap
+     * @return bool
+     */
+    public function canDo($cap) {
+        //capabilities depend on config, which may change depending on domain
+        $domain = $this->_userDomain($_SERVER['REMOTE_USER']);
+        $this->_loadServerConfig($domain);
+        return parent::canDo($cap);
+    }
+
+    /**
+     * Check user+password [required auth function]
+     *
+     * Checks if the given user exists and the given
+     * plaintext password is correct by trying to bind
+     * to the LDAP server
+     *
+     * @author  James Van Lommel <james@nosq.com>
+     * @param string $user
+     * @param string $pass
+     * @return  bool
+     */
+    public function checkPass($user, $pass) {
+        if($_SERVER['REMOTE_USER'] &&
+            $_SERVER['REMOTE_USER'] == $user &&
+            $this->conf['sso']
+        ) return true;
+
+        $adldap = $this->_adldap($this->_userDomain($user));
+        if(!$adldap) return false;
+
+        return $adldap->authenticate($this->_userName($user), $pass);
+    }
+
+    /**
+     * Return user info [required auth function]
+     *
+     * Returns info about the given user needs to contain
+     * at least these fields:
+     *
+     * name    string  full name of the user
+     * mail    string  email address of the user
+     * grps    array   list of groups the user is in
+     *
+     * This AD specific function returns the following
+     * addional fields:
+     *
+     * dn         string    distinguished name (DN)
+     * uid        string    samaccountname
+     * lastpwd    int       timestamp of the date when the password was set
+     * expires    true      if the password expires
+     * expiresin  int       seconds until the password expires
+     * any fields specified in the 'additional' config option
+     *
+     * @author  James Van Lommel <james@nosq.com>
+     * @param string $user
+     * @param bool $requireGroups (optional) - ignored, groups are always supplied by this plugin
+     * @return array
+     */
+    public function getUserData($user, $requireGroups=true) {
+        global $conf;
+        global $lang;
+        global $ID;
+        $adldap = $this->_adldap($this->_userDomain($user));
+        if(!$adldap) return false;
+
+        if($user == '') return array();
+
+        $fields = array('mail', 'displayname', 'samaccountname', 'lastpwd', 'pwdlastset', 'useraccountcontrol');
+
+        // add additional fields to read
+        $fields = array_merge($fields, $this->conf['additional']);
+        $fields = array_unique($fields);
+        $fields = array_filter($fields);
+
+        //get info for given user
+        $result = $adldap->user()->info($this->_userName($user), $fields);
+        if($result == false){
+            return array();
+        }
+
+        //general user info
+        $info = array();
+        $info['name'] = $result[0]['displayname'][0];
+        $info['mail'] = $result[0]['mail'][0];
+        $info['uid']  = $result[0]['samaccountname'][0];
+        $info['dn']   = $result[0]['dn'];
+        //last password set (Windows counts from January 1st 1601)
+        $info['lastpwd'] = $result[0]['pwdlastset'][0] / 10000000 - 11644473600;
+        //will it expire?
+        $info['expires'] = !($result[0]['useraccountcontrol'][0] & 0x10000); //ADS_UF_DONT_EXPIRE_PASSWD
+
+        // additional information
+        foreach($this->conf['additional'] as $field) {
+            if(isset($result[0][strtolower($field)])) {
+                $info[$field] = $result[0][strtolower($field)][0];
+            }
+        }
+
+        // handle ActiveDirectory memberOf
+        $info['grps'] = $adldap->user()->groups($this->_userName($user),(bool) $this->opts['recursive_groups']);
+
+        if(is_array($info['grps'])) {
+            foreach($info['grps'] as $ndx => $group) {
+                $info['grps'][$ndx] = $this->cleanGroup($group);
+            }
+        }
+
+        // always add the default group to the list of groups
+        if(!is_array($info['grps']) || !in_array($conf['defaultgroup'], $info['grps'])) {
+            $info['grps'][] = $conf['defaultgroup'];
+        }
+
+        // add the user's domain to the groups
+        $domain = $this->_userDomain($user);
+        if($domain && !in_array("domain-$domain", (array) $info['grps'])) {
+            $info['grps'][] = $this->cleanGroup("domain-$domain");
+        }
+
+        // check expiry time
+        if($info['expires'] && $this->conf['expirywarn']){
+            $expiry = $adldap->user()->passwordExpiry($user);
+            if(is_array($expiry)){
+                $info['expiresat'] = $expiry['expiryts'];
+                $info['expiresin'] = round(($info['expiresat'] - time())/(24*60*60));
+
+                // if this is the current user, warn him (once per request only)
+                if(($_SERVER['REMOTE_USER'] == $user) &&
+                    ($info['expiresin'] <= $this->conf['expirywarn']) &&
+                    !$this->msgshown
+                ) {
+                    $msg = sprintf($this->getLang('authpwdexpire'), $info['expiresin']);
+                    if($this->canDo('modPass')) {
+                        $url = wl($ID, array('do'=> 'profile'));
+                        $msg .= ' <a href="'.$url.'">'.$lang['btn_profile'].'</a>';
+                    }
+                    msg($msg);
+                    $this->msgshown = true;
+                }
+            }
+        }
+
+        return $info;
+    }
+
+    /**
+     * Make AD group names usable by DokuWiki.
+     *
+     * Removes backslashes ('\'), pound signs ('#'), and converts spaces to underscores.
+     *
+     * @author  James Van Lommel (jamesvl@gmail.com)
+     * @param string $group
+     * @return string
+     */
+    public function cleanGroup($group) {
+        $group = str_replace('\\', '', $group);
+        $group = str_replace('#', '', $group);
+        $group = preg_replace('[\s]', '_', $group);
+        $group = utf8_strtolower(trim($group));
+        return $group;
+    }
+
+    /**
+     * Sanitize user names
+     *
+     * Normalizes domain parts, does not modify the user name itself (unlike cleanGroup)
+     *
+     * @author Andreas Gohr <gohr@cosmocode.de>
+     * @param string $user
+     * @return string
+     */
+    public function cleanUser($user) {
+        $domain = '';
+
+        // get NTLM or Kerberos domain part
+        list($dom, $user) = explode('\\', $user, 2);
+        if(!$user) $user = $dom;
+        if($dom) $domain = $dom;
+        list($user, $dom) = explode('@', $user, 2);
+        if($dom) $domain = $dom;
+
+        // clean up both
+        $domain = utf8_strtolower(trim($domain));
+        $user   = utf8_strtolower(trim($user));
+
+        // is this a known, valid domain? if not discard
+        if(!is_array($this->conf[$domain])) {
+            $domain = '';
+        }
+
+        // reattach domain
+        if($domain) $user = "$user@$domain";
+        return $user;
+    }
+
+    /**
+     * Most values in LDAP are case-insensitive
+     *
+     * @return bool
+     */
+    public function isCaseSensitive() {
+        return false;
+    }
+
+    /**
+     * Create a Search-String useable by adLDAPUsers::all($includeDescription = false, $search = "*", $sorted = true)
+     *
+     * @param array $filter
+     * @return string
+     */
+    protected function _constructSearchString($filter){
+        if (!$filter){
+            return '*';
+        }
+        $adldapUtils = new adLDAPUtils($this->_adldap(null));
+        $result = '*';
+        if (isset($filter['name'])) {
+            $result .= ')(displayname=*' . $adldapUtils->ldapSlashes($filter['name']) . '*';
+            unset($filter['name']);
+        }
+
+        if (isset($filter['user'])) {
+            $result .= ')(samAccountName=*' . $adldapUtils->ldapSlashes($filter['user']) . '*';
+            unset($filter['user']);
+        }
+
+        if (isset($filter['mail'])) {
+            $result .= ')(mail=*' . $adldapUtils->ldapSlashes($filter['mail']) . '*';
+            unset($filter['mail']);
+        }
+        return $result;
+    }
+
+    /**
+     * Return a count of the number of user which meet $filter criteria
+     *
+     * @param array $filter  $filter array of field/pattern pairs, empty array for no filter
+     * @return int number of users
+     */
+    public function getUserCount($filter = array()) {
+        $adldap = $this->_adldap(null);
+        if(!$adldap) {
+            dbglog("authad/auth.php getUserCount(): _adldap not set.");
+            return -1;
+        }
+        if ($filter == array()) {
+            $result = $adldap->user()->all();
+        } else {
+            $searchString = $this->_constructSearchString($filter);
+            $result = $adldap->user()->all(false, $searchString);
+            if (isset($filter['grps'])) {
+                $this->users = array_fill_keys($result, false);
+                $usermanager = plugin_load("admin", "usermanager", false);
+                $usermanager->setLastdisabled(true);
+                if (!isset($this->_grpsusers[$this->_filterToString($filter)])){
+                    $this->_fillGroupUserArray($filter,$usermanager->getStart() + 3*$usermanager->getPagesize());
+                } elseif (count($this->_grpsusers[$this->_filterToString($filter)]) < $usermanager->getStart() + 3*$usermanager->getPagesize()) {
+                    $this->_fillGroupUserArray($filter,$usermanager->getStart() + 3*$usermanager->getPagesize() - count($this->_grpsusers[$this->_filterToString($filter)]));
+                }
+                $result = $this->_grpsusers[$this->_filterToString($filter)];
+            } else {
+                $usermanager = plugin_load("admin", "usermanager", false);
+                $usermanager->setLastdisabled(false);
+            }
+
+        }
+
+        if (!$result) {
+            return 0;
+        }
+        return count($result);
+    }
+
+    /**
+     *
+     * create a unique string for each filter used with a group
+     *
+     * @param array $filter
+     * @return string
+     */
+    protected function _filterToString ($filter) {
+        $result = '';
+        if (isset($filter['user'])) {
+            $result .= 'user-' . $filter['user'];
+        }
+        if (isset($filter['name'])) {
+            $result .= 'name-' . $filter['name'];
+        }
+        if (isset($filter['mail'])) {
+            $result .= 'mail-' . $filter['mail'];
+        }
+        if (isset($filter['grps'])) {
+            $result .= 'grps-' . $filter['grps'];
+        }
+        return $result;
+    }
+
+    /**
+     * Create an array of $numberOfAdds users passing a certain $filter, including belonging
+     * to a certain group and save them to a object-wide array. If the array
+     * already exists try to add $numberOfAdds further users to it.
+     *
+     * @param array $filter
+     * @param int $numberOfAdds additional number of users requested
+     * @return int number of Users actually add to Array
+     */
+    protected function _fillGroupUserArray($filter, $numberOfAdds){
+        $this->_grpsusers[$this->_filterToString($filter)];
+        $i = 0;
+        $count = 0;
+        $this->_constructPattern($filter);
+        foreach ($this->users as $user => &$info) {
+            if($i++ < $this->_actualstart) {
+                continue;
+            }
+            if($info === false) {
+                $info = $this->getUserData($user);
+            }
+            if($this->_filter($user, $info)) {
+                $this->_grpsusers[$this->_filterToString($filter)][$user] = $info;
+                if(($numberOfAdds > 0) && (++$count >= $numberOfAdds)) break;
+            }
+        }
+        $this->_actualstart = $i;
+        return $count;
+    }
+
+    /**
+     * Bulk retrieval of user data
+     *
+     * @author  Dominik Eckelmann <dokuwiki@cosmocode.de>
+     *
+     * @param   int $start index of first user to be returned
+     * @param   int $limit max number of users to be returned
+     * @param   array $filter array of field/pattern pairs, null for no filter
+     * @return array userinfo (refer getUserData for internal userinfo details)
+     */
+    public function retrieveUsers($start = 0, $limit = 0, $filter = array()) {
+        $adldap = $this->_adldap(null);
+        if(!$adldap) return false;
+
+        if(!$this->users) {
+            //get info for given user
+            $result = $adldap->user()->all(false, $this->_constructSearchString($filter));
+            if (!$result) return array();
+            $this->users = array_fill_keys($result, false);
+        }
+
+        $i     = 0;
+        $count = 0;
+        $result = array();
+
+        if (!isset($filter['grps'])) {
+            $usermanager = plugin_load("admin", "usermanager", false);
+            $usermanager->setLastdisabled(false);
+            $this->_constructPattern($filter);
+            foreach($this->users as $user => &$info) {
+                if($i++ < $start) {
+                    continue;
+                }
+                if($info === false) {
+                    $info = $this->getUserData($user);
+                }
+                $result[$user] = $info;
+                if(($limit > 0) && (++$count >= $limit)) break;
+            }
+        } else {
+            $usermanager = plugin_load("admin", "usermanager", false);
+            $usermanager->setLastdisabled(true);
+            if (!isset($this->_grpsusers[$this->_filterToString($filter)]) || count($this->_grpsusers[$this->_filterToString($filter)]) < ($start+$limit)) {
+                $this->_fillGroupUserArray($filter,$start+$limit - count($this->_grpsusers[$this->_filterToString($filter)]) +1);
+            }
+            if (!$this->_grpsusers[$this->_filterToString($filter)]) return false;
+            foreach($this->_grpsusers[$this->_filterToString($filter)] as $user => &$info) {
+                if($i++ < $start) {
+                    continue;
+                }
+                $result[$user] = $info;
+                if(($limit > 0) && (++$count >= $limit)) break;
+            }
+
+        }
+        return $result;
+    }
+
+    /**
+     * Modify user data
+     *
+     * @param   string $user      nick of the user to be changed
+     * @param   array  $changes   array of field/value pairs to be changed
+     * @return  bool
+     */
+    public function modifyUser($user, $changes) {
+        $return = true;
+        $adldap = $this->_adldap($this->_userDomain($user));
+        if(!$adldap) {
+            msg($this->getLang('connectfail'), -1);
+            return false;
+        }
+
+        // password changing
+        if(isset($changes['pass'])) {
+            try {
+                $return = $adldap->user()->password($this->_userName($user),$changes['pass']);
+            } catch (adLDAPException $e) {
+                if ($this->conf['debug']) msg('AD Auth: '.$e->getMessage(), -1);
+                $return = false;
+            }
+            if(!$return) msg($this->getLang('passchangefail'), -1);
+        }
+
+        // changing user data
+        $adchanges = array();
+        if(isset($changes['name'])) {
+            // get first and last name
+            $parts                     = explode(' ', $changes['name']);
+            $adchanges['surname']      = array_pop($parts);
+            $adchanges['firstname']    = join(' ', $parts);
+            $adchanges['display_name'] = $changes['name'];
+        }
+        if(isset($changes['mail'])) {
+            $adchanges['email'] = $changes['mail'];
+        }
+        if(count($adchanges)) {
+            try {
+                $return = $return & $adldap->user()->modify($this->_userName($user),$adchanges);
+            } catch (adLDAPException $e) {
+                if ($this->conf['debug']) msg('AD Auth: '.$e->getMessage(), -1);
+                $return = false;
+            }
+            if(!$return) msg($this->getLang('userchangefail'), -1);
+        }
+
+        return $return;
+    }
+
+    /**
+     * Initialize the AdLDAP library and connect to the server
+     *
+     * When you pass null as domain, it will reuse any existing domain.
+     * Eg. the one of the logged in user. It falls back to the default
+     * domain if no current one is available.
+     *
+     * @param string|null $domain The AD domain to use
+     * @return adLDAP|bool true if a connection was established
+     */
+    protected function _adldap($domain) {
+        if(is_null($domain) && is_array($this->opts)) {
+            $domain = $this->opts['domain'];
+        }
+
+        $this->opts = $this->_loadServerConfig((string) $domain);
+        if(isset($this->adldap[$domain])) return $this->adldap[$domain];
+
+        // connect
+        try {
+            $this->adldap[$domain] = new adLDAP($this->opts);
+            return $this->adldap[$domain];
+        } catch(adLDAPException $e) {
+            if($this->conf['debug']) {
+                msg('AD Auth: '.$e->getMessage(), -1);
+            }
+            $this->success         = false;
+            $this->adldap[$domain] = null;
+        }
+        return false;
+    }
+
+    /**
+     * Get the domain part from a user
+     *
+     * @param string $user
+     * @return string
+     */
+    public function _userDomain($user) {
+        list(, $domain) = explode('@', $user, 2);
+        return $domain;
+    }
+
+    /**
+     * Get the user part from a user
+     *
+     * @param string $user
+     * @return string
+     */
+    public function _userName($user) {
+        list($name) = explode('@', $user, 2);
+        return $name;
+    }
+
+    /**
+     * Fetch the configuration for the given AD domain
+     *
+     * @param string $domain current AD domain
+     * @return array
+     */
+    protected function _loadServerConfig($domain) {
+        // prepare adLDAP standard configuration
+        $opts = $this->conf;
+
+        $opts['domain'] = $domain;
+
+        // add possible domain specific configuration
+        if($domain && is_array($this->conf[$domain])) foreach($this->conf[$domain] as $key => $val) {
+            $opts[$key] = $val;
+        }
+
+        // handle multiple AD servers
+        $opts['domain_controllers'] = explode(',', $opts['domain_controllers']);
+        $opts['domain_controllers'] = array_map('trim', $opts['domain_controllers']);
+        $opts['domain_controllers'] = array_filter($opts['domain_controllers']);
+
+        // compatibility with old option name
+        if(empty($opts['admin_username']) && !empty($opts['ad_username'])) $opts['admin_username'] = $opts['ad_username'];
+        if(empty($opts['admin_password']) && !empty($opts['ad_password'])) $opts['admin_password'] = $opts['ad_password'];
+        $opts['admin_password'] = conf_decodeString($opts['admin_password']); // deobfuscate
+
+        // we can change the password if SSL is set
+        if($opts['use_ssl'] || $opts['use_tls']) {
+            $this->cando['modPass'] = true;
+        } else {
+            $this->cando['modPass'] = false;
+        }
+
+        // adLDAP expects empty user/pass as NULL, we're less strict FS#2781
+        if(empty($opts['admin_username'])) $opts['admin_username'] = null;
+        if(empty($opts['admin_password'])) $opts['admin_password'] = null;
+
+        // user listing needs admin priviledges
+        if(!empty($opts['admin_username']) && !empty($opts['admin_password'])) {
+            $this->cando['getUsers'] = true;
+        } else {
+            $this->cando['getUsers'] = false;
+        }
+
+        return $opts;
+    }
+
+    /**
+     * Returns a list of configured domains
+     *
+     * The default domain has an empty string as key
+     *
+     * @return array associative array(key => domain)
+     */
+    public function _getConfiguredDomains() {
+        $domains = array();
+        if(empty($this->conf['account_suffix'])) return $domains; // not configured yet
+
+        // add default domain, using the name from account suffix
+        $domains[''] = ltrim($this->conf['account_suffix'], '@');
+
+        // find additional domains
+        foreach($this->conf as $key => $val) {
+            if(is_array($val) && isset($val['account_suffix'])) {
+                $domains[$key] = ltrim($val['account_suffix'], '@');
+            }
+        }
+        ksort($domains);
+
+        return $domains;
+    }
+
+    /**
+     * Check provided user and userinfo for matching patterns
+     *
+     * The patterns are set up with $this->_constructPattern()
+     *
+     * @author Chris Smith <chris@jalakai.co.uk>
+     *
+     * @param string $user
+     * @param array  $info
+     * @return bool
+     */
+    protected function _filter($user, $info) {
+        foreach($this->_pattern as $item => $pattern) {
+            if($item == 'user') {
+                if(!preg_match($pattern, $user)) return false;
+            } else if($item == 'grps') {
+                if(!count(preg_grep($pattern, $info['grps']))) return false;
+            } else {
+                if(!preg_match($pattern, $info[$item])) return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Create a pattern for $this->_filter()
+     *
+     * @author Chris Smith <chris@jalakai.co.uk>
+     *
+     * @param array $filter
+     */
+    protected function _constructPattern($filter) {
+        $this->_pattern = array();
+        foreach($filter as $item => $pattern) {
+            $this->_pattern[$item] = '/'.str_replace('/', '\/', $pattern).'/i'; // allow regex characters
+        }
+    }
+}