acp_permissions.php

这些都是我以前学习是用到的源码

<?php
/** 
*
* @package acp
* @version $Id: acp_permissions.php,v 1.41 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_permissions
{
	var $u_action;
	var $permission_dropdown;
	
	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_permissions';

		// Trace has other vars
		if ($mode == 'trace')
		{
			$user_id = request_var('u', 0);
			$forum_id = request_var('f', 0);
			$permission = request_var('auth', '');

			$this->tpl_name = 'permission_trace';

			if ($user_id && isset($auth_admin->option_ids[$permission]) && $auth->acl_get('a_viewauth'))
			{
				$this->page_title = sprintf($user->lang['TRACE_PERMISSION'], $user->lang['acl_' . $permission]['lang']);
				$this->permission_trace($user_id, $forum_id, $permission);
				return;
			}
			
			trigger_error('NO_MODE', E_USER_ERROR);
		}

		// Set some vars
		$action = request_var('action', array('' => 0));
		$action = key($action);
		$action = (isset($_POST['psubmit'])) ? 'apply_permissions' : $action;

		$all_forums = request_var('all_forums', 0);
		$subforum_id = request_var('subforum_id', 0);
		$forum_id = request_var('forum_id', array(0));

		$username = request_var('username', array(''), true);
		$usernames = request_var('usernames', '', true);
		$user_id = request_var('user_id', array(0));

		$group_id = request_var('group_id', array(0));
		$select_all_groups = request_var('select_all_groups', 0);

		// If select all groups is set, we pre-build the group id array (this option is used for other screens to link to the permission settings screen)
		if ($select_all_groups)
		{
			// Add default groups to selection
			$sql_and = (!$config['coppa_enable']) ? " AND group_name <> 'REGISTERED_COPPA'" : '';

			$sql = 'SELECT group_id
				FROM ' . GROUPS_TABLE . '
				WHERE group_type = ' . GROUP_SPECIAL . "
				$sql_and";
			$result = $db->sql_query($sql);

			while ($row = $db->sql_fetchrow($result))
			{
				$group_id[] = $row['group_id'];
			}
			$db->sql_freeresult($result);
		}
		
		// Map usernames to ids and vice versa
		if ($usernames)
		{
			$username = explode("\n", $usernames);
		}
		unset($usernames);

		if (sizeof($username) && !sizeof($user_id))
		{
			user_get_id_name($user_id, $username);

			if (!sizeof($user_id))
			{
				trigger_error($user->lang['SELECTED_USER_NOT_EXIST'] . adm_back_link($this->u_action), E_USER_WARNING);
			}
		}
		unset($username);
		
		// Build forum ids (of all forums are checked or subforum listing used)
		if ($all_forums)
		{
			$sql = 'SELECT forum_id
				FROM ' . FORUMS_TABLE . '
				ORDER BY left_id';
			$result = $db->sql_query($sql);

			$forum_id = array();
			while ($row = $db->sql_fetchrow($result))
			{
				$forum_id[] = $row['forum_id'];
			}
			$db->sql_freeresult($result);
		}
		else if ($subforum_id)
		{
			$forum_id = array();
			foreach (get_forum_branch($subforum_id, 'children') as $row)
			{
				$forum_id[] = $row['forum_id'];
			}
		}

		// Define some common variables for every mode
		$error = array();

		$permission_scope = (strpos($mode, '_global') !== false) ? 'global' : 'local';

		// Showing introductionary page?
		if ($mode == 'intro')
		{
			$this->page_title = 'ACP_PERMISSIONS';

			$template->assign_vars(array(
				'S_INTRO'		=> true)
			);

			return;
		}

		switch ($mode)
		{
			case 'setting_user_global':
			case 'setting_group_global':
				$this->permission_dropdown = array('u_', 'm_', 'a_');
				$permission_victim = ($mode == 'setting_user_global') ? array('user') : array('group');
				$this->page_title = ($mode == 'setting_user_global') ? 'ACP_USERS_PERMISSIONS' : 'ACP_GROUPS_PERMISSIONS';
			break;

			case 'setting_user_local':
			case 'setting_group_local':
				$this->permission_dropdown = array('f_', 'm_');
				$permission_victim = ($mode == 'setting_user_local') ? array('user', 'forums') : array('group', 'forums');
				$this->page_title = ($mode == 'setting_user_local') ? 'ACP_USERS_FORUM_PERMISSIONS' : 'ACP_GROUPS_FORUM_PERMISSIONS';
			break;

			case 'setting_admin_global':
			case 'setting_mod_global':
				$this->permission_dropdown = (strpos($mode, '_admin_') !== false) ? array('a_') : array('m_');
				$permission_victim = array('usergroup');
				$this->page_title = ($mode == 'setting_admin_global') ? 'ACP_ADMINISTRATORS' : 'ACP_GLOBAL_MODERATORS';
			break;

			case 'setting_mod_local':
			case 'setting_forum_local':
				$this->permission_dropdown = ($mode == 'setting_mod_local') ? array('m_') : array('f_');
				$permission_victim = array('forums', 'usergroup');
				$this->page_title = ($mode == 'setting_mod_local') ? 'ACP_FORUM_MODERATORS' : 'ACP_FORUM_PERMISSIONS';
			break;

			case 'view_admin_global':
			case 'view_user_global':
			case 'view_mod_global':
				$this->permission_dropdown = ($mode == 'view_admin_global') ? array('a_') : (($mode == 'view_user_global') ? array('u_') : array('m_'));
				$permission_victim = array('usergroup_view');
				$this->page_title = ($mode == 'view_admin_global') ? 'ACP_VIEW_ADMIN_PERMISSIONS' : (($mode == 'view_user_global') ? 'ACP_VIEW_USER_PERMISSIONS' : 'ACP_VIEW_GLOBAL_MOD_PERMISSIONS');
			break;

			case 'view_mod_local':
			case 'view_forum_local':
				$this->permission_dropdown = ($mode == 'view_mod_local') ? array('m_') : array('f_');
				$permission_victim = array('forums', 'usergroup_view');
				$this->page_title = ($mode == 'view_mod_local') ? 'ACP_VIEW_FORUM_MOD_PERMISSIONS' : 'ACP_VIEW_FORUM_PERMISSIONS';
			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'])
		);

		// Get permission type
		$permission_type = request_var('type', $this->permission_dropdown[0]);

		if (!in_array($permission_type, $this->permission_dropdown))
		{
			trigger_error($user->lang['WRONG_PERMISSION_TYPE'] . adm_back_link($this->u_action), E_USER_WARNING);
		}


		// Handle actions
		if (strpos($mode, 'setting_') === 0 && $action)
		{
			switch ($action)
			{
				case 'delete':
					// All users/groups selected?
					$all_users = (isset($_POST['all_users'])) ? true : false;
					$all_groups = (isset($_POST['all_groups'])) ? true : false;

					if ($all_users || $all_groups)
					{
						$items = $this->retrieve_defined_user_groups($permission_scope, $forum_id, $permission_type);

						if ($all_users && sizeof($items['user_ids']))
						{
							$user_id = $items['user_ids'];
						}
						else if ($all_groups && sizeof($items['group_ids']))
						{
							$group_id = $items['group_ids'];
						}
					}

					if (sizeof($user_id) || sizeof($group_id))
					{
						$this->remove_permissions($mode, $permission_type, $auth_admin, $user_id, $group_id, $forum_id);
					}
					else
					{
						trigger_error($user->lang['NO_USER_GROUP_SELECTED'] . adm_back_link($this->u_action), E_USER_WARNING);
					}
				break;

				case 'apply_permissions':
					if (!isset($_POST['setting']))
					{
						trigger_error($user->lang['NO_AUTH_SETTING_FOUND'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					$this->set_permissions($mode, $permission_type, $auth_admin, $user_id, $group_id);
				break;

				case 'apply_all_permissions':
					if (!isset($_POST['setting']))
					{
						trigger_error($user->lang['NO_AUTH_SETTING_FOUND'] . adm_back_link($this->u_action), E_USER_WARNING);
					}

					$this->set_all_permissions($mode, $permission_type, $auth_admin, $user_id, $group_id);
				break;
			}
		}


		// Setting permissions screen
		$s_hidden_fields = build_hidden_fields(array(
			'user_id'		=> $user_id,
			'group_id'		=> $group_id,
			'forum_id'		=> $forum_id,
			'type'			=> $permission_type)
		);

		// Go through the screens/options needed and present them in correct order
		foreach ($permission_victim as $victim)
		{
			switch ($victim)
			{
				case 'forum_dropdown':

					if (sizeof($forum_id))
					{
						$this->check_existence('forum', $forum_id);
						continue 2;
					}

					$template->assign_vars(array(
						'S_SELECT_FORUM'		=> true,
						'S_FORUM_OPTIONS'		=> make_forum_select(false, false, true, false, false))
					);

				break;

				case 'forums':

					if (sizeof($forum_id))
					{
						$this->check_existence('forum', $forum_id);
						continue 2;
					}

					$forum_list = make_forum_select(false, false, true, false, false, false, true);

					// Build forum options
					$s_forum_options = '';
					foreach ($forum_list as $f_id => $f_row)
					{
						$s_forum_options .= '<option value="' . $f_id . '"' . $f_row['selected'] . '>' . $f_row['padding'] . $f_row['forum_name'] . '</option>';
					}

					// Build subforum options
					$s_subforum_options = $this->build_subforum_options($forum_list);

					$template->assign_vars(array(
						'S_SELECT_FORUM'		=> true,
						'S_FORUM_OPTIONS'		=> $s_forum_options,
						'S_SUBFORUM_OPTIONS'	=> $s_subforum_options,
						'S_FORUM_ALL'			=> true,
						'S_FORUM_MULTIPLE'		=> true)
					);

				break;

				case 'user':

					if (sizeof($user_id))
					{
						$this->check_existence('user', $user_id);
						continue 2;
					}

					$template->assign_vars(array(
						'S_SELECT_USER'			=> true,
						'U_FIND_USERNAME'		=> append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=searchuser&amp;form=select_victim&amp;field=username'),
						'UA_FIND_USERNAME'		=> append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=searchuser&form=select_victim&field=username', false))
					);

				break;

				case 'group':

					if (sizeof($group_id))
					{
						$this->check_existence('group', $group_id);
						continue 2;
					}

					$template->assign_vars(array(
						'S_SELECT_GROUP'		=> true,
						'S_GROUP_OPTIONS'		=> group_select_options(false))
					);

				break;

				case 'usergroup':
				case 'usergroup_view':

					if (sizeof($user_id) || sizeof($group_id))
					{
						if (sizeof($user_id))
						{
							$this->check_existence('user', $user_id);
						}

						if (sizeof($group_id))
						{
							$this->check_existence('group', $group_id);
						}

						continue 2;
					}

					$items = $this->retrieve_defined_user_groups($permission_scope, $forum_id, $permission_type);

					// Now we check the users... because the "all"-selection is different here (all defined users/groups)
					$all_users = (isset($_POST['all_users'])) ? true : false;
					$all_groups = (isset($_POST['all_groups'])) ? true : false;

					if ($all_users && sizeof($items['user_ids']))
					{
						$user_id = $items['user_ids'];