acp_permission_roles.php

这些都是我以前学习是用到的源码

<?php
/** 
*
* @package acp
* @version $Id: acp_permission_roles.php,v 1.17 2006/10/30 19:51:56 acydburn Exp $
* @copyright (c) 2005 phpBB Group 
* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
*
*/

/**
* @package acp
*/
class acp_permission_roles
{
	var $u_action;

	function main($id, $mode)
	{
		global $db, $user, $auth, $template, $cache;
		global $config, $phpbb_root_path, $phpbb_admin_path, $phpEx;

		include_once($phpbb_root_path . 'includes/functions_user.' . $phpEx);
		include_once($phpbb_root_path . 'includes/acp/auth.' . $phpEx);

		$auth_admin = new auth_admin();

		$user->add_lang('acp/permissions');
		add_permission_language();

		$this->tpl_name = 'acp_permission_roles';

		$submit = (isset($_POST['submit'])) ? true : false;
		$role_id = request_var('role_id', 0);
		$action = request_var('action', '');
		$action = (isset($_POST['add'])) ? 'add' : $action;

		switch ($mode)
		{
			case 'admin_roles':
				$permission_type = 'a_';
				$this->page_title = 'ACP_ADMIN_ROLES';
			break;

			case 'user_roles':
				$permission_type = 'u_';
				$this->page_title = 'ACP_USER_ROLES';
			break;

			case 'mod_roles':
				$permission_type = 'm_';
				$this->page_title = 'ACP_MOD_ROLES';
			break;

			case 'forum_roles':
				$permission_type = 'f_';
				$this->page_title = 'ACP_FORUM_ROLES';
			break;

			default:
				trigger_error('NO_MODE', E_USER_ERROR);
			break;
		}

		$template->assign_vars(array(
			'L_TITLE'		=> $user->lang[$this->page_title],
			'L_EXPLAIN'		=> $user->lang[$this->page_title . '_EXPLAIN'])
		);

		// Take action... admin submitted something
		if ($submit || $action == 'remove')
		{
			switch ($action)
			{
				case 'remove':

					if (!$role_id)
					{
						trigger_error($user->lang['NO_ROLE_SELECTED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					$sql = 'SELECT *
						FROM ' . ACL_ROLES_TABLE . '
						WHERE role_id = ' . $role_id;
					$result = $db->sql_query($sql);
					$role_row = $db->sql_fetchrow($result);
					$db->sql_freeresult($result);

					if (!$role_row)
					{
						trigger_error($user->lang['NO_ROLE_SELECTED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					if (confirm_box(true))
					{
						$this->remove_role($role_id, $permission_type);

						add_log('admin', 'LOG_' . strtoupper($permission_type) . 'ROLE_REMOVED', $role_row['role_name']);
						trigger_error($user->lang['ROLE_DELETED'] . adm_back_link($this->u_action));
					}
					else
					{
						confirm_box(false, 'DELETE_ROLE', build_hidden_fields(array(
							'i'			=> $id,
							'mode'		=> $mode,
							'role_id'	=> $role_id,
							'action'	=> $action,
						)));
					}

				break;

				case 'edit':
					if (!$role_id)
					{
						trigger_error($user->lang['NO_ROLE_SELECTED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					// Get role we edit
					$sql = 'SELECT *
						FROM ' . ACL_ROLES_TABLE . '
						WHERE role_id = ' . $role_id;
					$result = $db->sql_query($sql);
					$role_row = $db->sql_fetchrow($result);
					$db->sql_freeresult($result);

					if (!$role_row)
					{
						trigger_error($user->lang['NO_ROLE_SELECTED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

				// no break;

				case 'add':

					$role_name = request_var('role_name', '', true);
					$role_description = request_var('role_description', '', true);
					$auth_settings = request_var('setting', array('' => 0));

					if (!$role_name)
					{
						trigger_error($user->lang['NO_ROLE_NAME_SPECIFIED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					// if we add/edit a role we check the name to be unique among the settings...
					$sql = 'SELECT role_id
						FROM ' . ACL_ROLES_TABLE . "
						WHERE role_type = '" . $db->sql_escape($permission_type) . "'
							AND role_name = '" . $db->sql_escape($role_name) . "'";
					$result = $db->sql_query($sql);
					$row = $db->sql_fetchrow($result);
					$db->sql_freeresult($result);

					// Make sure we only print out the error if we add the role or change it's name
					if ($row && ($mode == 'add' || ($mode == 'edit' && $role_row['role_name'] != $role_name)))
					{
						trigger_error(sprintf($user->lang['ROLE_NAME_ALREADY_EXIST'], $role_name) . adm_back_link($this->u_action), E_USER_WARNING);
					}

					$sql_ary = array(
						'role_name'			=> (string) $role_name,
						'role_description'	=> (string) $role_description,
						'role_type'			=> (string) $permission_type,
					);

					if ($action == 'edit')
					{
						$sql = 'UPDATE ' . ACL_ROLES_TABLE . ' 
							SET ' . $db->sql_build_array('UPDATE', $sql_ary) . ' 
							WHERE role_id = ' . $role_id;
						$db->sql_query($sql);
					}
					else
					{
						// Get maximum role order for inserting a new role...
						$sql = 'SELECT MAX(role_order) as max_order
							FROM ' . ACL_ROLES_TABLE . "
							WHERE role_type = '" . $db->sql_escape($permission_type) . "'";
						$result = $db->sql_query($sql);
						$max_order = (int) $db->sql_fetchfield('max_order');
						$db->sql_freeresult($result);

						$sql_ary['role_order'] = $max_order + 1;

						$sql = 'INSERT INTO ' . ACL_ROLES_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary);
						$db->sql_query($sql);

						$role_id = $db->sql_nextid();
					}

					// Now add the auth settings
					$auth_admin->acl_set_role($role_id, $auth_settings);

					add_log('admin', 'LOG_' . strtoupper($permission_type) . 'ROLE_' . strtoupper($action), $role_name);

					trigger_error($user->lang['ROLE_' . strtoupper($action) . '_SUCCESS'] . adm_back_link($this->u_action));

				break;
			}
		}

		// Display screens
		switch ($action)
		{
			case 'add':

				$options_from = request_var('options_from', 0);

				$role_row = array(
					'role_name'			=> request_var('role_name', '', true),
					'role_description'	=> request_var('role_description', '', true),
					'role_type'			=> $permission_type,
				);

				if ($options_from)
				{
					$sql = 'SELECT p.auth_option_id, p.auth_setting, o.auth_option
						FROM ' . ACL_ROLES_DATA_TABLE . ' p, ' . ACL_OPTIONS_TABLE . ' o
						WHERE o.auth_option_id = p.auth_option_id
							AND p.role_id = ' . $options_from . '
						ORDER BY p.auth_option_id';
					$result = $db->sql_query($sql);

					$auth_options = array();
					while ($row = $db->sql_fetchrow($result))
					{
						$auth_options[$row['auth_option']] = $row['auth_setting'];
					}
					$db->sql_freeresult($result);
				}
				else
				{
					$sql = 'SELECT auth_option_id, auth_option
						FROM ' . ACL_OPTIONS_TABLE . "
						WHERE auth_option LIKE '{$permission_type}%'
							AND auth_option <> '{$permission_type}'
						ORDER BY auth_option_id";
					$result = $db->sql_query($sql);

					$auth_options = array();
					while ($row = $db->sql_fetchrow($result))
					{
						$auth_options[$row['auth_option']] = ACL_NO;
					}
					$db->sql_freeresult($result);
				}

			// no break;

			case 'edit':

				if ($action == 'edit')
				{
					if (!$role_id)
					{
						trigger_error($user->lang['NO_ROLE_SELECTED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}
					
					$sql = 'SELECT *
						FROM ' . ACL_ROLES_TABLE . '
						WHERE role_id = ' . $role_id;
					$result = $db->sql_query($sql);
					$role_row = $db->sql_fetchrow($result);
					$db->sql_freeresult($result);

					$sql = 'SELECT p.auth_option_id, p.auth_setting, o.auth_option
						FROM ' . ACL_ROLES_DATA_TABLE . ' p, ' . ACL_OPTIONS_TABLE . ' o
						WHERE o.auth_option_id = p.auth_option_id
							AND p.role_id = ' . $role_id . '
						ORDER BY p.auth_option_id';
					$result = $db->sql_query($sql);