phpbb3源码分析-/ucp.php（v0.06） - 拳不离手、曲不离口 - Speak with your code, my friend, not your word.
phpbb3源码分析-/ucp.php（v0.06）
clem
posted @ 2010年4月25日 13:39
in Language
, 9169 阅读
<?php
/**
*
* @package ucp
* @version $Id: ucp.php 10090 2009-09-03 09:25:16Z acydburn $
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
define('IN_PHPBB', true); //可以把这个文件分为三大部分ABC，以下是A。你看，基本上都在搞定义阿、包含阿，赋值阿等等，这是在做准备工作，为处理用户提交的操作做准备。
$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
require($phpbb_root_path . 'common.' . $phpEx);
require($phpbb_root_path . 'includes/functions_user.' . $phpEx);
require($phpbb_root_path . 'includes/functions_module.' . $phpEx);
// Basic parameter data
$id = request_var('i', '');
$mode = request_var('mode', '');
if ($mode == 'login' || $mode == 'logout' || $mode == 'confirm')
{
define('IN_LOGIN', true);
}
// Start session management
$user->session_begin();
$auth->acl($user->data);
$user->setup('ucp');
// Setting a variable to let the style designer know where he is...
$template->assign_var('S_IN_UCP', true);
$module = new p_master();
$default = false;
// Basic "global" modes //以下是B，核心是B，用户通常的一些操作都在这里，就一个switch，很简单吧。
switch ($mode) //用户到一个论坛，想注册了，就会点击“注册”这个链接，在php里其实就是去执行“注册“这个php文件，并且你可以在链接的后面加上几个参数，比如这里的mode就是一个从链接传入的参数。
{
case 'activate':
$module->load('ucp', 'activate');
$module->display($user->lang['UCP_ACTIVATE']);
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
break;
case 'resend_act':
$module->load('ucp', 'resend');
$module->display($user->lang['UCP_RESEND']);
break;
case 'sendpassword':
$module->load('ucp', 'remind');
$module->display($user->lang['UCP_REMIND']);
break;
case 'register': //用户点了”注册“，他需要注册了。
if ($user->data['is_registered'] || isset($_REQUEST['not_agreed'])) //于是先判断这个用户有没有注册呢？这个$user从哪里冒出来的？先不管，你只需要知道不管你有没有注册，在这个网站有没有记录，你都是一个user,bb3里就是用这个变量去表示你的存在。看看你的资料集（data数组）里有没有注册声明，显然如果你真的是来注册的，不会有这个东西。另外的一个条件是什么？有可能论坛关闭注册是不是？这里通过判断预设变量$_REQUEST[]来判断，那么可以想象，在屏蔽注册功能的同时，需要改写一下预设变量的值，这也很容易做到。
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx")); //TODO：这个用来跳回页面，但是关于session id暂时不讲。
}
$module->load('ucp', 'register'); //模块机制。
$module->display($user->lang['REGISTER']);
break;
case 'confirm':
$module->load('ucp', 'confirm');
break;
case 'login':
if ($user->data['is_registered'])
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
login_box(request_var('redirect', "index.$phpEx"));
break;
case 'logout':
if ($user->data['user_id'] != ANONYMOUS && isset($_GET['sid']) && !is_array($_GET['sid']) && $_GET['sid'] === $user->session_id)
{
$user->session_kill();
$user->session_begin();
$message = $user->lang['LOGOUT_REDIRECT'];
}
else
{
$message = ($user->data['user_id'] == ANONYMOUS) ? $user->lang['LOGOUT_REDIRECT'] : $user->lang['LOGOUT_FAILED'];
}
meta_refresh(3, append_sid("{$phpbb_root_path}index.$phpEx"));
$message = $message . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a> ');
trigger_error($message);
break;
case 'terms':
case 'privacy':
$message = ($mode == 'terms') ? 'TERMS_OF_USE_CONTENT' : 'PRIVACY_POLICY';
$title = ($mode == 'terms') ? 'TERMS_USE' : 'PRIVACY';
if (empty($user->lang[$message]))
{
if ($user->data['is_registered'])
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
login_box();
}
$template->set_filenames(array(
'body' => 'ucp_agreement.html')
);
// Disable online list
page_header($user->lang[$title], false);
$template->assign_vars(array(
'S_AGREEMENT' => true,
'AGREEMENT_TITLE' => $user->lang[$title],
'AGREEMENT_TEXT' => sprintf($user->lang[$message], $config['sitename'], generate_board_url()),
'U_BACK' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=login'),
'L_BACK' => $user->lang['BACK_TO_LOGIN'],
));
page_footer();
break;
case 'delete_cookies':
// Delete Cookies with dynamic names (do NOT delete poll cookies)
if (confirm_box(true))
{
$set_time = time() - 31536000;
foreach ($_COOKIE as $cookie_name => $cookie_data)
{
// Only delete board cookies, no other ones...
if (strpos($cookie_name, $config['cookie_name'] . '_') !== 0)
{
continue;
}
$cookie_name = str_replace($config['cookie_name'] . '_', '', $cookie_name);
// Polls are stored as {cookie_name}_poll_{topic_id}, cookie_name_ got removed, therefore checking for poll_
if (strpos($cookie_name, 'poll_') !== 0)
{
$user->set_cookie($cookie_name, '', $set_time);
}
}
$user->set_cookie('track', '', $set_time);
$user->set_cookie('u', '', $set_time);
$user->set_cookie('k', '', $set_time);
$user->set_cookie('sid', '', $set_time);
// We destroy the session here, the user will be logged out nevertheless
$user->session_kill();
$user->session_begin();
meta_refresh(3, append_sid("{$phpbb_root_path}index.$phpEx"));
$message = $user->lang['COOKIES_DELETED'] . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
trigger_error($message);
}
else
{
confirm_box(false, 'DELETE_COOKIES', '');
}
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
break;
case 'switch_perm':
$user_id = request_var('u', 0);
$sql = 'SELECT *
FROM ' . USERS_TABLE . '
WHERE user_id = ' . (int) $user_id;
$result = $db->sql_query($sql);
$user_row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
if (!$auth->acl_get('a_switchperm') || !$user_row || $user_id == $user->data['user_id'] || !check_link_hash(request_var('hash', ''), 'switchperm'))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
include($phpbb_root_path . 'includes/acp/auth.' . $phpEx);
$auth_admin = new auth_admin();
if (!$auth_admin->ghost_permissions($user_id, $user->data['user_id']))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
add_log('admin', 'LOG_ACL_TRANSFER_PERMISSIONS', $user_row['username']);
$message = sprintf($user->lang['PERMISSIONS_TRANSFERRED'], $user_row['username']) . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
trigger_error($message);
break;
case 'restore_perm':
if (!$user->data['user_perm_from'] || !$auth->acl_get('a_switchperm'))
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
$auth->acl_cache($user->data);
$sql = 'SELECT username
FROM ' . USERS_TABLE . '
WHERE user_id = ' . $user->data['user_perm_from'];
$result = $db->sql_query($sql);
$username = $db->sql_fetchfield('username');
$db->sql_freeresult($result);
add_log('admin', 'LOG_ACL_RESTORE_PERMISSIONS', $username);
$message = $user->lang['PERMISSIONS_RESTORED'] . '<br /><br />' . sprintf($user->lang['RETURN_INDEX'], '<a href="' . append_sid("{$phpbb_root_path}index.$phpEx") . '">', '</a>');
trigger_error($message);
break;
default:
$default = true;
break;
}
// We use this approach because it does not impose large code changes
if (!$default) //以上的众多mode基本上能应付用户的操作了，但难免有“漏网之鱼”，这里就是在判断是否漏网了，漏网了，pass，没漏网，return，跳出本文件。
{
return true;
}
//以下是C，用来处理过来的“漏网之鱼”
// Only registered users can go beyond this point //只有注册用户才能通过这里。
if (!$user->data['is_registered'])
{
if ($user->data['is_bot'])
{
redirect(append_sid("{$phpbb_root_path}index.$phpEx"));
}
login_box('', $user->lang['LOGIN_EXPLAIN_UCP']);
}
//所以只有注册用户的某些特殊操作才能来到这里有幸被处理。
// Instantiate module system and generate list of available modules
$module->list_modules('ucp');
// Check if the zebra module is set
if ($module->is_active('zebra', 'friends'))
{
// Output listing of friends online
$update_time = $config['load_online_time'] * 60;
$sql = $db->sql_build_query('SELECT_DISTINCT', array(
'SELECT' => 'u.user_id, u.username, u.username_clean, u.user_colour, MAX(s.session_time) as online_time, MIN(s.session_viewonline) AS viewonline',
'FROM' => array(
USERS_TABLE => 'u',
ZEBRA_TABLE => 'z'
),
'LEFT_JOIN' => array(
array(
'FROM' => array(SESSIONS_TABLE => 's'),
'ON' => 's.session_user_id = z.zebra_id'
)
),
'WHERE' => 'z.user_id = ' . $user->data['user_id'] . '
AND z.friend = 1
AND u.user_id = z.zebra_id',
'GROUP_BY' => 'z.zebra_id, u.user_id, u.username_clean, u.user_colour, u.username',
'ORDER_BY' => 'u.username_clean ASC',
));
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$which = (time() - $update_time < $row['online_time'] && ($row['viewonline'] || $auth->acl_get('u_viewonline'))) ? 'online' : 'offline';
$template->assign_block_vars("friends_{$which}", array(
'USER_ID' => $row['user_id'],
'U_PROFILE' => get_username_string('profile', $row['user_id'], $row['username'], $row['user_colour']),
'USER_COLOUR' => get_username_string('colour', $row['user_id'], $row['username'], $row['user_colour']),
'USERNAME' => get_username_string('username', $row['user_id'], $row['username'], $row['user_colour']),
'USERNAME_FULL' => get_username_string('full', $row['user_id'], $row['username'], $row['user_colour']))
);
}
$db->sql_freeresult($result);
}
// Do not display subscribed topics/forums if not allowed
if (!$config['allow_topic_notify'] && !$config['allow_forum_notify'])
{
$module->set_display('main', 'subscribed', false);
}
// Select the active module
$module->set_active($id, $mode);
// Load and execute the relevant module
$module->load_active();
// Assign data to the template engine for the list of modules
$module->assign_tpl_vars(append_sid("{$phpbb_root_path}ucp.$phpEx"));
// Generate the page, do not display/query online list
$module->display($module->get_page_title(), false);
//本文件到此结束。
/**
* Function for assigning a template var if the zebra module got included
*/
function _module_zebra($mode, &$module_row)
{
global $template;
$template->assign_var('S_ZEBRA_ENABLED', true);
if ($mode == 'friends')
{
$template->assign_var('S_ZEBRA_FRIENDS_ENABLED', true);
}
if ($mode == 'foes')
{
$template->assign_var('S_ZEBRA_FOES_ENABLED', true);
}
}
?>
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