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[bookstack] / app / Auth / Access / Ldap.php

<?php namespace BookStack\Auth\Access;

/**
 * Class Ldap
 * An object-orientated thin abstraction wrapper for common PHP LDAP functions.
 * Allows the standard LDAP functions to be mocked for testing.
 * @package BookStack\Services
 */
class Ldap
{

    /**
     * Connect to a LDAP server.
     * @param string $hostName
     * @param int    $port
     * @return resource
     */
    public function connect($hostName, $port)
    {
        return ldap_connect($hostName, $port);
    }

    /**
     * Set the value of a LDAP option for the given connection.
     * @param resource $ldapConnection
     * @param int $option
     * @param mixed $value
     * @return bool
     */
    public function setOption($ldapConnection, $option, $value)
    {
        return ldap_set_option($ldapConnection, $option, $value);
    }

    /**
     * Set the version number for the given ldap connection.
     * @param $ldapConnection
     * @param $version
     * @return bool
     */
    public function setVersion($ldapConnection, $version)
    {
        return $this->setOption($ldapConnection, LDAP_OPT_PROTOCOL_VERSION, $version);
    }

    /**
     * Search LDAP tree using the provided filter.
     * @param resource   $ldapConnection
     * @param string     $baseDn
     * @param string     $filter
     * @param array|null $attributes
     * @return resource
     */
    public function search($ldapConnection, $baseDn, $filter, array $attributes = null)
    {
        return ldap_search($ldapConnection, $baseDn, $filter, $attributes);
    }

    /**
     * Get entries from an ldap search result.
     * @param resource $ldapConnection
     * @param resource $ldapSearchResult
     * @return array
     */
    public function getEntries($ldapConnection, $ldapSearchResult)
    {
        return ldap_get_entries($ldapConnection, $ldapSearchResult);
    }

    /**
     * Search and get entries immediately.
     * @param resource   $ldapConnection
     * @param string     $baseDn
     * @param string     $filter
     * @param array|null $attributes
     * @return resource
     */
    public function searchAndGetEntries($ldapConnection, $baseDn, $filter, array $attributes = null)
    {
        $search = $this->search($ldapConnection, $baseDn, $filter, $attributes);
        return $this->getEntries($ldapConnection, $search);
    }

    /**
     * Bind to LDAP directory.
     * @param resource $ldapConnection
     * @param string   $bindRdn
     * @param string   $bindPassword
     * @return bool
     */
    public function bind($ldapConnection, $bindRdn = null, $bindPassword = null)
    {
        return ldap_bind($ldapConnection, $bindRdn, $bindPassword);
    }

    /**
     * Explode a LDAP dn string into an array of components.
     * @param string $dn
     * @param int $withAttrib
     * @return array
     */
    public function explodeDn(string $dn, int $withAttrib)
    {
        return ldap_explode_dn($dn, $withAttrib);
    }

    /**
     * Escape a string for use in an LDAP filter.
     * @param string $value
     * @param string $ignore
     * @param int $flags
     * @return string
     */
    public function escape(string $value, string $ignore = "", int $flags = 0)
    {
        return ldap_escape($value, $ignore, $flags);
    }
}