C:/xampp/htdocs/moodle/enrol/ldap/settingslib.php

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<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

defined('MOODLE_INTERNAL') || die();

class admin_setting_configtext_trim_lower extends admin_setting_configtext {
    /* @var boolean whether to lowercase the value or not before writing in to the db */
    private $lowercase;

    public function __construct($name, $visiblename, $description, $defaultsetting, $lowercase=false) {
        $this->lowercase = $lowercase;
        parent::__construct($name, $visiblename, $description, $defaultsetting);
    }

    public function write_setting($data) {
        if ($this->paramtype === PARAM_INT and $data === '') {
            // do not complain if '' used instead of 0
            $data = 0;
        }

        // $data is a string
        $validated = $this->validate($data);
        if ($validated !== true) {
            return $validated;
        }
        if ($this->lowercase) {
            $data = moodle_strtolower($data);
        }
        return ($this->config_write($this->name, trim($data)) ? '' : get_string('errorsetting', 'admin'));
    }
}

class admin_setting_ldap_rolemapping extends admin_setting {

    public function __construct($name, $visiblename, $description, $defaultsetting) {
        parent::__construct($name, $visiblename, $description, $defaultsetting);
    }

    public function get_setting() {
        $roles = get_all_roles();
        $result = array();
        foreach ($roles as $role) {
            $contexts = $this->config_read('contexts_role'.$role->id);
            $memberattribute = $this->config_read('memberattribute_role'.$role->id);
            $result[] = array('id' => $role->id,
                              'name' => $role->name,
                              'contexts' => $contexts,
                              'memberattribute' => $memberattribute);
        }
        return $result;
    }

    public function write_setting($data) {
        if(!is_array($data)) {
            return ''; // ignore it
        }

        $result = '';
        foreach ($data as $roleid => $data) {
            if (!$this->config_write('contexts_role'.$roleid, trim($data['contexts']))) {
                $return = get_string('errorsetting', 'admin');
            }
            if (!$this->config_write('memberattribute_role'.$roleid, moodle_strtolower(trim($data['memberattribute'])))) {
                $return = get_string('errorsetting', 'admin');
            }
        }
        return $result;
    }

    public function output_html($data, $query='') {
        $return  = '<div style="float:left; width:auto; margin-right: 0.5em;">';
        $return .= '<div style="height: 2em;">'.get_string('roles', 'role').'</div>';
        foreach ($data as $role) {
            $return .= '<div style="height: 2em;">'.s($role['name']).'</div>';
        }
        $return .= '</div>';

        $return .= '<div style="float:left; width:auto; margin-right: 0.5em;">';
        $return .= '<div style="height: 2em;">'.get_string('contexts', 'enrol_ldap').'</div>';
        foreach ($data as $role) {
            $contextid = $this->get_id().'['.$role['id'].'][contexts]';
            $contextname = $this->get_full_name().'['.$role['id'].'][contexts]';
            $return .= '<div style="height: 2em;"><input type="text" size="40" id="'.$contextid.'" name="'.$contextname.'" value="'.s($role['contexts']).'"/></div>';
        }
        $return .= '</div>';

        $return .= '<div style="float:left; width:auto; margin-right: 0.5em;">';
        $return .= '<div style="height: 2em;">'.get_string('memberattribute', 'enrol_ldap').'</div>';
        foreach ($data as $role) {
            $memberattrid = $this->get_id().'['.$role['id'].'][memberattribute]';
            $memberattrname = $this->get_full_name().'['.$role['id'].'][memberattribute]';
            $return .= '<div style="height: 2em;"><input type="text" size="15" id="'.$memberattrid.'" name="'.$memberattrname.'" value="'.s($role['memberattribute']).'"/></div>';
        }
        $return .= '</div>';
        $return .= '<div style="clear:both;"></div>';

        return format_admin_setting($this, $this->visiblename, $return,
                                    $this->description, true, '', '', $query);
    }
}