acp_modules.php

这些都是我以前学习是用到的源码

<?php
/** 
*
* @package acp
* @version $Id: acp_modules.php,v 1.37 2006/11/24 14:58:07 acydburn Exp $
* @copyright (c) 2005 phpBB Group 
* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
*
*/

/**
* - Able to check for new module versions (modes changed/adjusted/added/removed)
* Icons for:
* - module enabled and displayed (common)
* - module enabled and not displayed
* - module deactivated
* - category (enabled)
* - category disabled
*/

/**
* @package acp
*/
class acp_modules
{
	var $module_class = '';
	var $parent_id;
	var $u_action;

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

		// Set a global define for modules we might include (the author is able to prevent execution of code by checking this constant)
		define('MODULE_INCLUDE', true);

		$user->add_lang('acp/modules');
		$this->tpl_name = 'acp_modules';

		// module class
		$this->module_class = $mode;

		if ($this->module_class == 'ucp')
		{
			$user->add_lang('ucp');
		}
		else if ($this->module_class == 'mcp')
		{
			$user->add_lang('mcp');
		}

		$this->page_title = strtoupper($this->module_class);

		$this->parent_id = request_var('parent_id', 0);
		$module_id = request_var('m', 0);
		$action = request_var('action', '');
		$errors = array();

		switch ($action)
		{
			case 'delete':
				if (!$module_id)
				{
					trigger_error($user->lang['NO_MODULE_ID'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
				}

				if (confirm_box(true))
				{
					$errors = $this->delete_module($module_id);

					if (!sizeof($errors))
					{
						$this->remove_cache_file();
						trigger_error($user->lang['MODULE_DELETED'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id));
					}
				}
				else
				{
					confirm_box(false, 'DELETE_MODULE', build_hidden_fields(array(
						'i'			=> $id,
						'mode'		=> $mode,
						'parent_id'	=> $this->parent_id,
						'module_id'	=> $module_id,
						'action'	=> $action,
					)));
				}

			break;
			
			case 'enable':
			case 'disable':
				if (!$module_id)
				{
					trigger_error($user->lang['NO_MODULE_ID'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
				}

				$sql = 'UPDATE ' . MODULES_TABLE . ' 
					SET module_enabled = ' . (($action == 'enable') ? 1 : 0) . "
					WHERE module_id = $module_id";
				$db->sql_query($sql);

				add_log('admin', 'LOG_MODULE_' . strtoupper($action));
				$this->remove_cache_file();

			break;

			case 'move_up':
			case 'move_down':
				if (!$module_id)
				{
					trigger_error($user->lang['NO_MODULE_ID'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
				}

				$sql = 'SELECT *
					FROM ' . MODULES_TABLE . "
					WHERE module_class = '" . $db->sql_escape($this->module_class) . "'
						AND module_id = $module_id";
				$result = $db->sql_query($sql);
				$row = $db->sql_fetchrow($result);
				$db->sql_freeresult($result);

				if (!$row)
				{
					trigger_error($user->lang['NO_MODULE'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
				}

				$move_module_name = $this->move_module_by($row, $action, 1);

				if ($move_module_name !== false)
				{
					add_log('admin', 'LOG_MODULE_' . strtoupper($action), $move_module_name);
					$this->remove_cache_file();
				}
		
			break;

			case 'quickadd':
				$quick_install = request_var('quick_install', '');

				if (confirm_box(true))
				{
					if (!$quick_install || strpos($quick_install, '::') === false)
					{
						break;
					}

					list($module_basename, $module_mode) = explode('::', $quick_install);

					// Check if module name and mode exist...
					$fileinfo = $this->get_module_infos($module_basename);
					$fileinfo = $fileinfo[$module_basename];

					if (isset($fileinfo['modes'][$module_mode]))
					{
						$module_data = array(
							'module_basename'	=> $module_basename,
							'module_enabled'	=> 0,
							'module_display'	=> (isset($fileinfo['modes'][$module_mode]['display'])) ? $fileinfo['modes'][$module_mode]['display'] : 1,
							'parent_id'			=> $this->parent_id,
							'module_class'		=> $this->module_class,
							'module_langname'	=> $fileinfo['modes'][$module_mode]['title'],
							'module_mode'		=> $module_mode,
							'module_auth'		=> $fileinfo['modes'][$module_mode]['auth'],
						);

						$errors = $this->update_module_data($module_data);

						if (!sizeof($errors))
						{
							$this->remove_cache_file();
	
							trigger_error($user->lang['MODULE_ADDED'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id));
						}
					}
				}
				else
				{
					confirm_box(false, 'ADD_MODULE', build_hidden_fields(array(
						'i'			=> $id,
						'mode'		=> $mode,
						'parent_id'	=> $this->parent_id,
						'action'	=> 'quickadd',
						'quick_install'	=> $quick_install,
					)));
				}

			break;

			case 'edit':

				if (!$module_id)
				{
					trigger_error($user->lang['NO_MODULE_ID'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
				}
				
				$module_row = $this->get_module_row($module_id);

			// no break

			case 'add':

				if ($action == 'add')
				{
					$module_row = array(
						'module_basename'	=> '',
						'module_enabled'	=> 0,
						'module_display'	=> 1,
						'parent_id'			=> 0,
						'module_langname'	=> request_var('module_langname', '', true),
						'module_mode'		=> '',
						'module_auth'		=> '',
					);
				}
				
				$module_data = array();

				$module_data['module_basename'] = request_var('module_basename', (string) $module_row['module_basename']);
				$module_data['module_enabled'] = request_var('module_enabled', (int) $module_row['module_enabled']);
				$module_data['module_display'] = request_var('module_display', (int) $module_row['module_display']);
				$module_data['parent_id'] = request_var('module_parent_id', (int) $module_row['parent_id']);
				$module_data['module_class'] = $this->module_class;
				$module_data['module_langname'] = request_var('module_langname', (string) $module_row['module_langname'], true);
				$module_data['module_mode'] = request_var('module_mode', (string) $module_row['module_mode']);

				$submit = (isset($_POST['submit'])) ? true : false;

				if ($submit)
				{
					if (!$module_data['module_langname'])
					{
						trigger_error($user->lang['NO_MODULE_LANGNAME'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
					}

					$module_type = request_var('module_type', 'category');

					if ($module_type == 'category')
					{
						$module_data['module_basename'] = $module_data['module_mode'] = $module_data['module_auth'] = '';
						$module_data['module_display'] = 1;
					}

					if ($action == 'edit')
					{
						$module_data['module_id'] = $module_id;
					}

					// Adjust auth row
					if ($module_data['module_basename'] && $module_data['module_mode'])
					{
						$fileinfo = $this->get_module_infos($module_data['module_basename']);
						$module_data['module_auth'] = $fileinfo[$module_data['module_basename']]['modes'][$module_data['module_mode']]['auth'];
					}

					$errors = $this->update_module_data($module_data);

					if (!sizeof($errors))
					{
						$this->remove_cache_file();
	
						trigger_error((($action == 'add') ? $user->lang['MODULE_ADDED'] : $user->lang['MODULE_EDITED']) . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id));
					}
				}

				// Category/not category?
				$is_cat = (!$module_data['module_basename']) ? true : false;

				// Get module information
				$module_infos = $this->get_module_infos();

				// Build name options
				$s_name_options = $s_mode_options = '';
				foreach ($module_infos as $option => $values)
				{
					if (!$module_data['module_basename'])
					{
						$module_data['module_basename'] = $option;
					}

					// Name options
					$s_name_options .= '<option value="' . $option . '"' . (($option == $module_data['module_basename']) ? ' selected="selected"' : '') . '>' . $this->lang_name($values['title']) . ' [' . $this->module_class . '_' . $option . ']</option>';

					$template->assign_block_vars('m_names', array('NAME' => $option));

					// Build module modes
					foreach ($values['modes'] as $m_mode => $m_values)
					{
						if ($option == $module_data['module_basename'])
						{
							$s_mode_options .= '<option value="' . $m_mode . '"' . (($m_mode == $module_data['module_mode']) ? ' selected="selected"' : '') . '>' . $this->lang_name($m_values['title']) . '</option>';
						}
						
						$template->assign_block_vars('m_names.modes', array(
							'OPTION'		=> $m_mode,
							'VALUE'			=> $this->lang_name($m_values['title']),
							'A_OPTION'		=> addslashes($m_mode),
							'A_VALUE'		=> addslashes($this->lang_name($m_values['title'])))
						);
					}
				}
				
				$s_cat_option = '<option value="0"' . (($module_data['parent_id'] == 0) ? ' selected="selected"' : '') . '>' . $user->lang['NO_PARENT'] . '</option>';

				$template->assign_vars(array_merge(array(
					'S_EDIT_MODULE'		=> true,
					'S_IS_CAT'			=> $is_cat,
					'S_CAT_OPTIONS'		=> $s_cat_option . $this->make_module_select($module_data['parent_id'], ($action == 'edit') ? $module_row['module_id'] : false, false, false, false, true),
					'S_MODULE_NAMES'	=> $s_name_options,
					'S_MODULE_MODES'	=> $s_mode_options,
					'U_BACK'			=> $this->u_action . '&amp;parent_id=' . $this->parent_id,
					'U_EDIT_ACTION'		=> $this->u_action . '&amp;parent_id=' . $this->parent_id,

					'L_TITLE'			=> $user->lang[strtoupper($action) . '_MODULE'],
					
					'MODULENAME'		=> $this->lang_name($module_data['module_langname']),
					'ACTION'			=> $action,
					'MODULE_ID'			=> $module_id,

				), 
					array_change_key_case($module_data, CASE_UPPER))
				);

				if (sizeof($errors))
				{
					$template->assign_vars(array(
						'S_ERROR'	=> true,
						'ERROR_MSG'	=> implode('<br />', $errors))
					);
				}

				return;

			break;
		}

		// Default management page
		if (sizeof($errors))
		{
			$template->assign_vars(array(
				'S_ERROR'	=> true,
				'ERROR_MSG'	=> implode('<br />', $errors))
			);
		}

		if (!$this->parent_id)
		{
			$navigation = strtoupper($this->module_class);
		}
		else
		{
			$navigation = '<a href="' . $this->u_action . '">' . strtoupper($this->module_class) . '</a>';

			$modules_nav = $this->get_module_branch($this->parent_id, 'parents', 'descending');

			foreach ($modules_nav as $row)
			{
				$langname = $this->lang_name($row['module_langname']);

				if ($row['module_id'] == $this->parent_id)
				{
					$navigation .= ' -&gt; ' . $langname;
				}
				else
				{
					$navigation .= ' -&gt; <a href="' . $this->u_action . '&amp;parent_id=' . $row['module_id'] . '">' . $langname . '</a>';
				}
			}
		}

		// Jumpbox
		$module_box = $this->make_module_select($this->parent_id, false, false, false, false);

		$sql = 'SELECT *
			FROM ' . MODULES_TABLE . "
			WHERE parent_id = {$this->parent_id}
				AND module_class = '" . $db->sql_escape($this->module_class) . "'
			ORDER BY left_id";
		$result = $db->sql_query($sql);

		if ($row = $db->sql_fetchrow($result))
		{
			do
			{
				$langname = $this->lang_name($row['module_langname']);

				if (!$row['module_enabled'])
				{
					$module_image = '<img src="images/icon_folder_lock.gif" width="46" height="25" alt="' . $user->lang['DEACTIVATED_MODULE'] .'" />';
				}
				else
				{
					$module_image = (!$row['module_basename'] || $row['left_id'] + 1 != $row['right_id']) ? '<img src="images/icon_subfolder.gif" width="46" height="25" alt="' . $user->lang['CATEGORY'] . '" />' : '<img src="images/icon_folder.gif" width="46" height="25" alt="' . $user->lang['MODULE'] . '" />';
				}

				$url = $this->u_action . '&amp;parent_id=' . $this->parent_id . '&amp;m=' . $row['module_id'];

				$template->assign_block_vars('modules', array(
					'MODULE_IMAGE'		=> $module_image,
					'MODULE_TITLE'		=> $langname,
					'MODULE_ENABLED'	=> ($row['module_enabled']) ? true : false,
					'MODULE_DISPLAYED'	=> ($row['module_display']) ? true : false,

					'S_ACP_CAT_SYSTEM'			=> ($this->module_class == 'acp' && $row['module_langname'] == 'ACP_CAT_SYSTEM') ? true : false,
					'S_ACP_MODULE_MANAGEMENT'	=> ($this->module_class == 'acp' && ($row['module_basename'] == 'modules' || $row['module_langname'] == 'ACP_MODULE_MANAGEMENT')) ? true : false,

					'U_MODULE'			=> $this->u_action . '&amp;parent_id=' . $row['module_id'],
					'U_MOVE_UP'			=> $url . '&amp;action=move_up',
					'U_MOVE_DOWN'		=> $url . '&amp;action=move_down',
					'U_EDIT'			=> $url . '&amp;action=edit',
					'U_DELETE'			=> $url . '&amp;action=delete',
					'U_ENABLE'			=> $url . '&amp;action=enable',
					'U_DISABLE'			=> $url . '&amp;action=disable')
				);
			}
			while ($row = $db->sql_fetchrow($result));
		}
		else if ($this->parent_id)
		{
			$row = $this->get_module_row($this->parent_id);

			$url = $this->u_action . '&amp;parent_id=' . $this->parent_id . '&amp;m=' . $row['module_id'];

			$template->assign_vars(array(
				'S_NO_MODULES'		=> true,
				'MODULE_TITLE'		=> $langname,
				'MODULE_ENABLED'	=> ($row['module_enabled']) ? true : false,
				'MODULE_DISPLAYED'	=> ($row['module_display']) ? true : false,

				'U_EDIT'			=> $url . '&amp;action=edit',
				'U_DELETE'			=> $url . '&amp;action=delete',
				'U_ENABLE'			=> $url . '&amp;action=enable',
				'U_DISABLE'			=> $url . '&amp;action=disable')
			);
		}
		$db->sql_freeresult($result);

		// Quick adding module
		$module_infos = $this->get_module_infos();

		// Build quick options
		$s_install_options = '';
		foreach ($module_infos as $option => $values)
		{
			// Name options
			$s_install_options .= '<optgroup label="' . $this->lang_name($values['title']) . ' [' . $this->module_class . '_' . $option . ']">';

			// Build module modes
			foreach ($values['modes'] as $m_mode => $m_values)
			{
				$s_install_options .= '<option value="' . $option . '::' . $m_mode . '">&nbsp; &nbsp;' . $this->lang_name($m_values['title']) . '</option>';
			}

			$s_install_options .= '</optgroup>';
		}

		$template->assign_vars(array(
			'U_SEL_ACTION'		=> $this->u_action,
			'U_ACTION'			=> $this->u_action . '&amp;parent_id=' . $this->parent_id,
			'NAVIGATION'		=> $navigation,
			'MODULE_BOX'		=> $module_box,
			'PARENT_ID'			=> $this->parent_id,
			'S_INSTALL_OPTIONS'	=> $s_install_options,
			)
		);
	}

	/**
	* Get row for specified module
	*/
	function get_module_row($module_id)
	{
		global $db, $user;

		$sql = 'SELECT *
			FROM ' . MODULES_TABLE . "
			WHERE module_class = '" . $db->sql_escape($this->module_class) . "'
				AND module_id = $module_id";
		$result = $db->sql_query($sql);
		$row = $db->sql_fetchrow($result);
		$db->sql_freeresult($result);
		
		if (!$row)
		{
			trigger_error($user->lang['NO_MODULE'] . adm_back_link($this->u_action . '&amp;parent_id=' . $this->parent_id), E_USER_WARNING);
		}

		return $row;
	}
	
	/**
	* Get available module information from module files
	*/
	function get_module_infos($module = '', $module_class = false)
	{
		global $phpbb_root_path, $phpEx;
		
		$module_class = ($module_class === false) ? $this->module_class : $module_class;

		$directory = $phpbb_root_path . 'includes/' . $module_class . '/info/';
		$fileinfo = array();

		if (!$module)
		{
			$dh = opendir($directory);
			while (($file = readdir($dh)) !== false)
			{
				// Is module?
				if (preg_match('/^' . $module_class . '_.+\.' . $phpEx . '$/', $file))
				{
					$class = str_replace(".$phpEx", '', $file) . '_info';