我的老板让我在他网站的问题提交页面中添加一个验证码，他说这是使用 SMF 论坛设计的，很明显这是一个论坛网站。
现在，当我转到所有站点文件都存在的 cPanel 托管时，我在任何.php文件中都看不到 HTML 代码。
主要是，在盯着大约 7 个小时之后，我对那些 PHP 代码一无所知。
该网站是 www.usmlmed.com。
示例索引文件代码为：
$forum_version = 'SMF 2.0.13';
@ini_set('memory_limit', '128M');
// Get everything started up...
define('SMF', 1);
if (function_exists('set_magic_quotes_runtime'))
@set_magic_quotes_runtime(0);
error_reporting(defined('E_STRICT') ? E_ALL | E_STRICT : E_ALL);
$time_start = microtime();
// This makes it so headers can be sent!
ob_start();
// Do some cleaning, just in case.
foreach (array('db_character_set', 'cachedir') as $variable)
if (isset($GLOBALS[$variable]))
unset($GLOBALS[$variable], $GLOBALS[$variable]);
// Load the settings...
require_once(dirname(__FILE__) . '/Settings.php');
// Make absolutely sure the cache directory is defined.
if ((empty($cachedir) || !file_exists($cachedir)) && file_exists($boarddir . '/cache'))
$cachedir = $boarddir . '/cache';
// And important includes.
require_once($sourcedir . '/QueryString.php');
require_once($sourcedir . '/Subs.php');
require_once($sourcedir . '/Errors.php');
require_once($sourcedir . '/Load.php');
require_once($sourcedir . '/Security.php');
// Using an pre-PHP 5.1 version?
if (@version_compare(PHP_VERSION, '5.1') == -1)
require_once($sourcedir . '/Subs-Compat.php');
// If $maintenance is set specifically to 2, then we're upgrading or something.
if (!empty($maintenance) && $maintenance == 2)
db_fatal_error();
// Create a variable to store some SMF specific functions in.
$smcFunc = array();
// Initate the database connection and define some database functions to use.
loadDatabase();
// Load the settings from the settings table, and perform operations like optimizing.
reloadSettings();
// Clean the request variables, add slashes, etc.
cleanRequest();
$context = array();
// Seed the random generator.
if (empty($modSettings['rand_seed']) || mt_rand(1, 250) == 69)
smf_seed_generator();
// Before we get carried away, are we doing a scheduled task? If so save CPU cycles by jumping out!
if (isset($_GET['scheduled']))
{
require_once($sourcedir . '/ScheduledTasks.php');
AutoTask();
}
// Check if compressed output is enabled, supported, and not already being done.
if (!empty($modSettings['enableCompressedOutput']) && !headers_sent())
{
// If zlib is being used, turn off output compression.
if (@ini_get('zlib.output_compression') == '1' || @ini_get('output_handler') == 'ob_gzhandler' || @version_compare(PHP_VERSION, '4.2.0') == -1)
$modSettings['enableCompressedOutput'] = '0';
else
{
ob_end_clean();
ob_start('ob_gzhandler');
}
}
// Emit some headers for some modicum of protection against nasties.
if (!headers_sent())
{
// Future versions will make some of this configurable. This is primarily a 'safe' configuration for most cases for now.
header('X-Frame-Options: SAMEORIGIN');
header('X-XSS-Protection: 1');
header('X-Content-Type-Options: nosniff');
}
// Register an error handler.
set_error_handler('error_handler');
// Start the session. (assuming it hasn't already been.)
loadSession();
// Determine if this is using WAP, WAP2, or imode. Technically, we should check that wap comes before application/xhtml or text/html, but this doesn't work in practice as much as it should.
if (isset($_REQUEST['wap']) || isset($_REQUEST['wap2']) || isset($_REQUEST['imode']))
unset($_SESSION['nowap']);
elseif (isset($_REQUEST['nowap']))
$_SESSION['nowap'] = true;
elseif (!isset($_SESSION['nowap']))
{
if (isset($_SERVER['HTTP_ACCEPT']) && strpos($_SERVER['HTTP_ACCEPT'], 'application/vnd.wap.xhtml+xml') !== false)
$_REQUEST['wap2'] = 1;
elseif (isset($_SERVER['HTTP_ACCEPT']) && strpos($_SERVER['HTTP_ACCEPT'], 'text/vnd.wap.wml') !== false)
{
if (strpos($_SERVER['HTTP_USER_AGENT'], 'DoCoMo/') !== false || strpos($_SERVER['HTTP_USER_AGENT'], 'portalmmm/') !== false)
$_REQUEST['imode'] = 1;
else
$_REQUEST['wap'] = 1;
}
}
if (!defined('WIRELESS'))
define('WIRELESS', isset($_REQUEST['wap']) || isset($_REQUEST['wap2']) || isset($_REQUEST['imode']));
// Some settings and headers are different for wireless protocols.
if (WIRELESS)
{
define('WIRELESS_PROTOCOL', isset($_REQUEST['wap']) ? 'wap' : (isset($_REQUEST['wap2']) ? 'wap2' : (isset($_REQUEST['imode']) ? 'imode' : '')));
// Some cellphones can't handle output compression...
$modSettings['enableCompressedOutput'] = '0';
// !!! Do we want these hard coded?
$modSettings['defaultMaxMessages'] = 5;
$modSettings['defaultMaxTopics'] = 9;
// Wireless protocol header.
if (WIRELESS_PROTOCOL == 'wap')
header('Content-Type: text/vnd.wap.wml');
}
// Restore post data if we are revalidating OpenID.
if (isset($_GET['openid_restore_post']) && !empty($_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]['post']) && empty($_POST))
{
$_POST = $_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]['post'];
unset($_SESSION['openid']['saved_data'][$_GET['openid_restore_post']]);
}
// What function shall we execute? (done like this for memory's sake.)
call_user_func(smf_main());
// Call obExit specially; we're coming from the main area ;).
obExit(null, null, true);
// The main controlling function.
function smf_main()
{
global $modSettings, $settings, $user_info, $board, $topic, $board_info, $maintenance, $sourcedir;
// Special case: session keep-alive, output a transparent pixel.
if (isset($_GET['action']) && $_GET['action'] == 'keepalive')
{
header('Content-Type: image/gif');
die("\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x21\xF9\x04\x01\x00\x00\x00\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3B");
}
// Load the user's cookie (or set as guest) and load their settings.
loadUserSettings();
// Load the current board's information.
loadBoard();
// Load the current user's permissions.
loadPermissions();
// Attachments don't require the entire theme to be loaded.
if (isset($_REQUEST['action']) && $_REQUEST['action'] == 'dlattach' && (!empty($modSettings['allow_guestAccess']) && $user_info['is_guest']))
detectBrowser();
// Load the current theme. (note that ?theme=1 will also work, may be used for guest theming.)
else
loadTheme();
// Check if the user should be disallowed access.
is_not_banned();
// If we are in a topic and don't have permission to approve it then duck out now.
if (!empty($topic) && empty($board_info['cur_topic_approved']) && !allowedTo('approve_posts') && ($user_info['id'] != $board_info['cur_topic_starter'] || $user_info['is_guest']))
fatal_lang_error('not_a_topic', false);
// Do some logging, unless this is an attachment, avatar, toggle of editor buttons, theme option, XML feed etc.
if (empty($_REQUEST['action']) || !in_array($_REQUEST['action'], array('dlattach', 'findmember', 'jseditor', 'jsoption', 'requestmembers', 'smstats', '.xml', 'xmlhttp', 'verificationcode', 'viewquery', 'viewsmfile')))
{
// Log this user as online.
writeLog();
// Track forum statistics and hits...?
if (!empty($modSettings['hitStats']))
trackStats(array('hits' => '+'));
}
// Is the forum in maintenance mode? (doesn't apply to administrators.)
if (!empty($maintenance) && !allowedTo('admin_forum'))
{
// You can only login.... otherwise, you're getting the "maintenance mode" display.
if (isset($_REQUEST['action']) && ($_REQUEST['action'] == 'login2' || $_REQUEST['action'] == 'logout'))
{
require_once($sourcedir . '/LogInOut.php');
return $_REQUEST['action'] == 'login2' ? 'Login2' : 'Logout';
}
// Don't even try it, sonny.
else
{
require_once($sourcedir . '/Subs-Auth.php');
return 'InMaintenance';
}
}
// If guest access is off, a guest can only do one of the very few following actions.
elseif (empty($modSettings['allow_guestAccess']) && $user_info['is_guest'] && (!isset($_REQUEST['action']) || !in_array($_REQUEST['action'], array('coppa', 'login', 'login2', 'register', 'register2', 'reminder', 'activate', 'help', 'smstats', 'mailq', 'verificationcode', 'openidreturn'))))
{
require_once($sourcedir . '/Subs-Auth.php');
return 'KickGuest';
}
elseif (empty($_REQUEST['action']))
{
// Action and board are both empty... BoardIndex!
if (empty($board) && empty($topic))
{
require_once($sourcedir . '/BoardIndex.php');
return 'BoardIndex';
}
// Topic is empty, and action is empty.... MessageIndex!
elseif (empty($topic))
{
require_once($sourcedir . '/MessageIndex.php');
return 'MessageIndex';
}
// Board is not empty... topic is not empty... action is empty.. Display!
else
{
require_once($sourcedir . '/Display.php');
return 'Display';
}
}
// Here's the monstrous $_REQUEST['action'] array - $_REQUEST['action'] => array($file, $function).
$actionArray = array(
'activate' => array('Register.php', 'Activate'),
'admin' => array('Admin.php', 'AdminMain'),
'announce' => array('Post.php', 'AnnounceTopic'),
'attachapprove' => array('ManageAttachments.php', 'ApproveAttach'),
'buddy' => array('Subs-Members.php', 'BuddyListToggle'),
'calendar' => array('Calendar.php', 'CalendarMain'),
'clock' => array('Calendar.php', 'clock'),
'collapse' => array('BoardIndex.php', 'CollapseCategory'),
'coppa' => array('Register.php', 'CoppaForm'),
'credits' => array('Who.php', 'Credits'),
'deletemsg' => array('RemoveTopic.php', 'DeleteMessage'),
'display' => array('Display.php', 'Display'),
'dlattach' => array('Display.php', 'Download'),
'editpoll' => array('Poll.php', 'EditPoll'),
'editpoll2' => array('Poll.php', 'EditPoll2'),
'emailuser' => array('SendTopic.php', 'EmailUser'),
'findmember' => array('Subs-Auth.php', 'JSMembers'),
'groups' => array('Groups.php', 'Groups'),
'help' => array('Help.php', 'ShowHelp'),
'helpadmin' => array('Help.php', 'ShowAdminHelp'),
'im' => array('PersonalMessage.php', 'MessageMain'),
'jseditor' => array('Subs-Editor.php', 'EditorMain'),
'jsmodify' => array('Post.php', 'JavaScriptModify'),
'jsoption' => array('Themes.php', 'SetJavaScript'),
'lock' => array('LockTopic.php', 'LockTopic'),
'lockvoting' => array('Poll.php', 'LockVoting'),
'login' => array('LogInOut.php', 'Login'),
'login2' => array('LogInOut.php', 'Login2'),
'logout' => array('LogInOut.php', 'Logout'),
'markasread' => array('Subs-Boards.php', 'MarkRead'),
'mergetopics' => array('SplitTopics.php', 'MergeTopics'),
'mlist' => array('Memberlist.php', 'Memberlist'),
'moderate' => array('ModerationCenter.php', 'ModerationMain'),
'modifycat' => array('ManageBoards.php', 'ModifyCat'),
'modifykarma' => array('Karma.php', 'ModifyKarma'),
'movetopic' => array('MoveTopic.php', 'MoveTopic'),
'movetopic2' => array('MoveTopic.php', 'MoveTopic2'),
'notify' => array('Notify.php', 'Notify'),
'notifyboard' => array('Notify.php', 'BoardNotify'),
'openidreturn' => array('Subs-OpenID.php', 'smf_openID_return'),
'pm' => array('PersonalMessage.php', 'MessageMain'),
'post' => array('Post.php', 'Post'),
'post2' => array('Post.php', 'Post2'),
'printpage' => array('Printpage.php', 'PrintTopic'),
'profile' => array('Profile.php', 'ModifyProfile'),
'quotefast' => array('Post.php', 'QuoteFast'),
'quickmod' => array('MessageIndex.php', 'QuickModeration'),
'quickmod2' => array('Display.php', 'QuickInTopicModeration'),
'recent' => array('Recent.php', 'RecentPosts'),
'register' => array('Register.php', 'Register'),
'register2' => array('Register.php', 'Register2'),
'reminder' => array('Reminder.php', 'RemindMe'),
'removepoll' => array('Poll.php', 'RemovePoll'),
'removetopic2' => array('RemoveTopic.php', 'RemoveTopic2'),
'reporttm' => array('SendTopic.php', 'ReportToModerator'),
'requestmembers' => array('Subs-Auth.php', 'RequestMembers'),
'restoretopic' => array('RemoveTopic.php', 'RestoreTopic'),
'search' => array('Search.php', 'PlushSearch1'),
'search2' => array('Search.php', 'PlushSearch2'),
'sendtopic' => array('SendTopic.php', 'EmailUser'),
'smstats' => array('Stats.php', 'SMStats'),
'suggest' => array('Subs-Editor.php', 'AutoSuggestHandler'),
'spellcheck' => array('Subs-Post.php', 'SpellCheck'),
'splittopics' => array('SplitTopics.php', 'SplitTopics'),
'stats' => array('Stats.php', 'DisplayStats'),
'sticky' => array('LockTopic.php', 'Sticky'),
'theme' => array('Themes.php', 'ThemesMain'),
'trackip' => array('Profile-View.php', 'trackIP'),
'about:mozilla' => array('Karma.php', 'BookOfUnknown'),
'about:unknown' => array('Karma.php', 'BookOfUnknown'),
'unread' => array('Recent.php', 'UnreadTopics'),
'unreadreplies' => array('Recent.php', 'UnreadTopics'),
'verificationcode' => array('Register.php', 'VerificationCode'),
'viewprofile' => array('Profile.php', 'ModifyProfile'),
'vote' => array('Poll.php', 'Vote'),
'viewquery' => array('ViewQuery.php', 'ViewQuery'),
'viewsmfile' => array('Admin.php', 'DisplayAdminFile'),
'who' => array('Who.php', 'Who'),
'.xml' => array('News.php', 'ShowXmlFeed'),
'xmlhttp' => array('Xml.php', 'XMLhttpMain'),
);
// Allow modifying $actionArray easily.
call_integration_hook('integrate_actions', array(&$actionArray));
// Get the function and file to include - if it's not there, do the board index.
if (!isset($_REQUEST['action']) || !isset($actionArray[$_REQUEST['action']]))
{
// Catch the action with the theme?
if (!empty($settings['catch_action']))
{
require_once($sourcedir . '/Themes.php');
return 'WrapAction';
}
// Fall through to the board index then...
require_once($sourcedir . '/BoardIndex.php');
return 'BoardIndex';
}
// Otherwise, it was set - so let's go to that action.
require_once($sourcedir . '/' . $actionArray[$_REQUEST['action']][0]);
return $actionArray[$_REQUEST['action']][1];
}
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