/
xmlhttp.php
1161 lines (988 loc) · 32.4 KB
/
xmlhttp.php
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<?php
/**
* MyBB 1.8
* Copyright 2014 MyBB Group, All Rights Reserved
*
* Website: http://www.mybb.com
* License: http://www.mybb.com/about/license
*
*/
/**
* The deal with this file is that it handles all of the XML HTTP Requests for MyBB.
*
* It contains a stripped down version of the MyBB core which does not load things
* such as themes, who's online data, all of the language packs and more.
*
* This is done to make response times when using XML HTTP Requests faster and
* less intense on the server.
*/
define("IN_MYBB", 1);
// We don't want visits here showing up on the Who's Online
define("NO_ONLINE", 1);
define('THIS_SCRIPT', 'xmlhttp.php');
// Load MyBB core files
require_once dirname(__FILE__)."/inc/init.php";
$shutdown_queries = $shutdown_functions = array();
// Load some of the stock caches we'll be using.
$groupscache = $cache->read("usergroups");
if(!is_array($groupscache))
{
$cache->update_usergroups();
$groupscache = $cache->read("usergroups");
}
// Send no cache headers
header("Expires: Sat, 1 Jan 2000 01:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
// Create the session
require_once MYBB_ROOT."inc/class_session.php";
$session = new session;
$session->init();
// Load the language we'll be using
if(!isset($mybb->settings['bblanguage']))
{
$mybb->settings['bblanguage'] = "english";
}
if(isset($mybb->user['language']) && $lang->language_exists($mybb->user['language']))
{
$mybb->settings['bblanguage'] = $mybb->user['language'];
}
$lang->set_language($mybb->settings['bblanguage']);
if(function_exists('mb_internal_encoding') && !empty($lang->settings['charset']))
{
@mb_internal_encoding($lang->settings['charset']);
}
// Load the theme
// 1. Check cookies
if(!$mybb->user['uid'] && !empty($mybb->cookies['mybbtheme']))
{
$mybb->user['style'] = (int)$mybb->cookies['mybbtheme'];
}
// 2. Load style
if(isset($mybb->user['style']) && (int)$mybb->user['style'] != 0)
{
$loadstyle = "tid='".(int)$mybb->user['style']."'";
}
else
{
$loadstyle = "def='1'";
}
// Load basic theme information that we could be needing.
if($loadstyle != "def='1'")
{
$query = $db->simple_select('themes', 'name, tid, properties, allowedgroups', $loadstyle, array('limit' => 1));
$theme = $db->fetch_array($query);
if($theme && !is_member($theme['allowedgroups']) && $theme['allowedgroups'] != 'all')
{
if(isset($mybb->cookies['mybbtheme']))
{
my_unsetcookie('mybbtheme');
}
$loadstyle = "def='1'";
}
}
if($loadstyle == "def='1'")
{
if(!$cache->read('default_theme'))
{
$cache->update_default_theme();
}
$theme = $cache->read('default_theme');
}
// No theme was found - we attempt to load the master or any other theme
if(!isset($theme['tid']) || isset($theme['tid']) && !$theme['tid'])
{
// Missing theme was from a user, run a query to set any users using the theme to the default
$db->update_query('users', array('style' => 0), "style = '{$mybb->user['style']}'");
// Attempt to load the master or any other theme if the master is not available
$query = $db->simple_select('themes', 'name, tid, properties, stylesheets', '', array('order_by' => 'tid', 'limit' => 1));
$theme = $db->fetch_array($query);
}
$theme = @array_merge($theme, my_unserialize($theme['properties']));
// Set the appropriate image language directory for this theme.
// Are we linking to a remote theme server?
if(my_validate_url($theme['imgdir']))
{
// If a language directory for the current language exists within the theme - we use it
if(!empty($mybb->user['language']))
{
$theme['imglangdir'] = $theme['imgdir'].'/'.$mybb->user['language'];
}
else
{
// Check if a custom language directory exists for this theme
if(!empty($mybb->settings['bblanguage']))
{
$theme['imglangdir'] = $theme['imgdir'].'/'.$mybb->settings['bblanguage'];
}
// Otherwise, the image language directory is the same as the language directory for the theme
else
{
$theme['imglangdir'] = $theme['imgdir'];
}
}
}
else
{
$img_directory = $theme['imgdir'];
if($mybb->settings['usecdn'] && !empty($mybb->settings['cdnpath']))
{
$img_directory = rtrim($mybb->settings['cdnpath'], '/') . '/' . ltrim($theme['imgdir'], '/');
}
if(!@is_dir($img_directory))
{
$theme['imgdir'] = 'images';
}
// If a language directory for the current language exists within the theme - we use it
if(!empty($mybb->user['language']) && is_dir($img_directory.'/'.$mybb->user['language']))
{
$theme['imglangdir'] = $theme['imgdir'].'/'.$mybb->user['language'];
}
else
{
// Check if a custom language directory exists for this theme
if(is_dir($img_directory.'/'.$mybb->settings['bblanguage']))
{
$theme['imglangdir'] = $theme['imgdir'].'/'.$mybb->settings['bblanguage'];
}
// Otherwise, the image language directory is the same as the language directory for the theme
else
{
$theme['imglangdir'] = $theme['imgdir'];
}
}
$theme['imgdir'] = $mybb->get_asset_url($theme['imgdir']);
$theme['imglangdir'] = $mybb->get_asset_url($theme['imglangdir']);
}
$templatelist = "postbit_editedby,xmlhttp_buddyselect_online,xmlhttp_buddyselect_offline,xmlhttp_buddyselect";
$templates->cache($db->escape_string($templatelist));
if($lang->settings['charset'])
{
$charset = $lang->settings['charset'];
}
// If not, revert to UTF-8
else
{
$charset = "UTF-8";
}
$lang->load("global");
$lang->load("xmlhttp");
$closed_bypass = array("refresh_captcha", "validate_captcha");
$mybb->input['action'] = $mybb->get_input('action');
$plugins->run_hooks("xmlhttp");
// If the board is closed, the user is not an administrator and they're not trying to login, show the board closed message
if($mybb->settings['boardclosed'] == 1 && $mybb->usergroup['canviewboardclosed'] != 1 && !in_array($mybb->input['action'], $closed_bypass))
{
// Show error
if(!$mybb->settings['boardclosed_reason'])
{
$mybb->settings['boardclosed_reason'] = $lang->boardclosed_reason;
}
$lang->error_boardclosed .= "<br /><em>{$mybb->settings['boardclosed_reason']}</em>";
xmlhttp_error($lang->error_boardclosed);
}
// Fetch a list of usernames beginning with a certain string (used for auto completion)
if($mybb->input['action'] == "get_users")
{
$mybb->input['query'] = ltrim($mybb->get_input('query'));
$search_type = $mybb->get_input('search_type', MyBB::INPUT_INT); // 0: starts with, 1: ends with, 2: contains
// If the string is less than 2 characters, quit.
if(my_strlen($mybb->input['query']) < 2)
{
exit;
}
if($mybb->get_input('getone', MyBB::INPUT_INT) == 1)
{
$limit = 1;
}
else
{
$limit = 15;
}
// Send our headers.
header("Content-type: application/json; charset={$charset}");
// Query for any matching users.
$query_options = array(
"order_by" => "username",
"order_dir" => "asc",
"limit_start" => 0,
"limit" => $limit
);
$plugins->run_hooks("xmlhttp_get_users_start");
$likestring = $db->escape_string_like($mybb->input['query']);
if($search_type == 1)
{
$likestring = '%'.$likestring;
}
elseif($search_type == 2)
{
$likestring = '%'.$likestring.'%';
}
else
{
$likestring .= '%';
}
$query = $db->simple_select("users", "uid, username", "username LIKE '{$likestring}'", $query_options);
if($limit == 1)
{
$user = $db->fetch_array($query);
$data = array('uid' => $user['uid'], 'id' => $user['username'], 'text' => $user['username']);
}
else
{
$data = array();
while($user = $db->fetch_array($query))
{
$data[] = array('uid' => $user['uid'], 'id' => $user['username'], 'text' => $user['username']);
}
}
$plugins->run_hooks("xmlhttp_get_users_end");
echo json_encode($data);
exit;
}
// This action provides editing of thread/post subjects from within their respective list pages.
else if($mybb->input['action'] == "edit_subject" && $mybb->request_method == "post")
{
// Verify POST request
if(!verify_post_check($mybb->get_input('my_post_key'), true))
{
xmlhttp_error($lang->invalid_post_code);
}
// We're editing a thread subject.
if($mybb->get_input('tid', MyBB::INPUT_INT))
{
// Fetch the thread.
$thread = get_thread($mybb->get_input('tid', MyBB::INPUT_INT));
if(!$thread)
{
xmlhttp_error($lang->thread_doesnt_exist);
}
// Fetch some of the information from the first post of this thread.
$query_options = array(
"order_by" => "dateline, pid",
);
$query = $db->simple_select("posts", "pid,uid,dateline", "tid='".$thread['tid']."'", $query_options);
$post = $db->fetch_array($query);
}
else
{
exit;
}
// Fetch the specific forum this thread/post is in.
$forum = get_forum($thread['fid']);
// Missing thread, invalid forum? Error.
if(!$forum || $forum['type'] != "f")
{
xmlhttp_error($lang->thread_doesnt_exist);
}
// Fetch forum permissions.
$forumpermissions = forum_permissions($forum['fid']);
$plugins->run_hooks("xmlhttp_edit_subject_start");
// If this user is not a moderator with "caneditposts" permissions.
if(!is_moderator($forum['fid'], "caneditposts"))
{
// Thread is closed - no editing allowed.
if($thread['closed'] == 1)
{
xmlhttp_error($lang->thread_closed_edit_subjects);
}
// Forum is not open, user doesn't have permission to edit, or author doesn't match this user - don't allow editing.
else if($forum['open'] == 0 || $forumpermissions['caneditposts'] == 0 || $mybb->user['uid'] != $post['uid'] || $mybb->user['uid'] == 0)
{
xmlhttp_error($lang->no_permission_edit_subject);
}
// If we're past the edit time limit - don't allow editing.
else if($mybb->usergroup['edittimelimit'] != 0 && $post['dateline'] < (TIME_NOW-($mybb->usergroup['edittimelimit']*60)))
{
$lang->edit_time_limit = $lang->sprintf($lang->edit_time_limit, $mybb->usergroup['edittimelimit']);
xmlhttp_error($lang->edit_time_limit);
}
$ismod = false;
}
else
{
$ismod = true;
}
$subject = $mybb->get_input('value');
if(my_strtolower($charset) != "utf-8")
{
if(function_exists("iconv"))
{
$subject = iconv($charset, "UTF-8//IGNORE", $subject);
}
else if(function_exists("mb_convert_encoding"))
{
$subject = @mb_convert_encoding($subject, $charset, "UTF-8");
}
else if(my_strtolower($charset) == "iso-8859-1")
{
$subject = utf8_decode($subject);
}
}
// Only edit subject if subject has actually been changed
if($thread['subject'] != $subject)
{
// Set up posthandler.
require_once MYBB_ROOT."inc/datahandlers/post.php";
$posthandler = new PostDataHandler("update");
$posthandler->action = "post";
// Set the post data that came from the input to the $post array.
$updatepost = array(
"pid" => $post['pid'],
"tid" => $thread['tid'],
"fid" => $forum['fid'],
"prefix" => $thread['prefix'],
"subject" => $subject,
"edit_uid" => $mybb->user['uid']
);
$posthandler->set_data($updatepost);
// Now let the post handler do all the hard work.
if(!$posthandler->validate_post())
{
$post_errors = $posthandler->get_friendly_errors();
xmlhttp_error($post_errors);
}
// No errors were found, we can call the update method.
else
{
$posthandler->update_post();
if($ismod == true)
{
$modlogdata = array(
"tid" => $thread['tid'],
"fid" => $forum['fid']
);
log_moderator_action($modlogdata, $lang->edited_post);
}
}
}
require_once MYBB_ROOT."inc/class_parser.php";
$parser = new postParser;
// Send our headers.
header("Content-type: application/json; charset={$charset}");
$plugins->run_hooks("xmlhttp_edit_subject_end");
$mybb->input['value'] = $parser->parse_badwords($mybb->get_input('value'));
// Spit the subject back to the browser.
$subject = substr($mybb->input['value'], 0, 120); // 120 is the varchar length for the subject column
echo json_encode(array("subject" => '<a href="'.get_thread_link($thread['tid']).'">'.htmlspecialchars_uni($subject).'</a>'));
// Close the connection.
exit;
}
else if($mybb->input['action'] == "edit_post")
{
// Fetch the post from the database.
$post = get_post($mybb->get_input('pid', MyBB::INPUT_INT));
// No result, die.
if(!$post || $post['visible'] == -1)
{
xmlhttp_error($lang->post_doesnt_exist);
}
// Fetch the thread associated with this post.
$thread = get_thread($post['tid']);
// Fetch the specific forum this thread/post is in.
$forum = get_forum($thread['fid']);
// Missing thread, invalid forum? Error.
if(!$thread || !$forum || $forum['type'] != "f")
{
xmlhttp_error($lang->thread_doesnt_exist);
}
// Check if this forum is password protected and we have a valid password
if(check_forum_password($forum['fid'], 0, true))
{
xmlhttp_error($lang->wrong_forum_password);
}
// Fetch forum permissions.
$forumpermissions = forum_permissions($forum['fid']);
$plugins->run_hooks("xmlhttp_edit_post_start");
// If this user is not a moderator with "caneditposts" permissions.
if(!is_moderator($forum['fid'], "caneditposts"))
{
// Thread is closed - no editing allowed.
if($thread['closed'] == 1)
{
xmlhttp_error($lang->thread_closed_edit_message);
}
// Forum is not open, user doesn't have permission to edit, or author doesn't match this user - don't allow editing.
else if($forum['open'] == 0 || $forumpermissions['caneditposts'] == 0 || $mybb->user['uid'] != $post['uid'] || $mybb->user['uid'] == 0 || $mybb->user['suspendposting'] == 1)
{
xmlhttp_error($lang->no_permission_edit_post);
}
// If we're past the edit time limit - don't allow editing.
else if($mybb->usergroup['edittimelimit'] != 0 && $post['dateline'] < (TIME_NOW-($mybb->usergroup['edittimelimit']*60)))
{
$lang->edit_time_limit = $lang->sprintf($lang->edit_time_limit, $mybb->usergroup['edittimelimit']);
xmlhttp_error($lang->edit_time_limit);
}
// User can't edit unapproved post unless permitted for own
if($post['visible'] == 0 && !($mybb->settings['showownunapproved'] && $post['uid'] == $mybb->user['uid']))
{
xmlhttp_error($lang->post_moderation);
}
}
$plugins->run_hooks("xmlhttp_edit_post_end");
if($mybb->get_input('do') == "get_post")
{
// Send our headers.
header("Content-type: application/json; charset={$charset}");
// Send the contents of the post.
echo json_encode($post['message']);
exit;
}
else if($mybb->get_input('do') == "update_post")
{
// Verify POST request
if(!verify_post_check($mybb->get_input('my_post_key'), true))
{
xmlhttp_error($lang->invalid_post_code);
}
$message = $mybb->get_input('value');
$editreason = $mybb->get_input('editreason');
if(my_strtolower($charset) != "utf-8")
{
if(function_exists("iconv"))
{
$message = iconv($charset, "UTF-8//IGNORE", $message);
$editreason = iconv($charset, "UTF-8//IGNORE", $editreason);
}
else if(function_exists("mb_convert_encoding"))
{
$message = @mb_convert_encoding($message, $charset, "UTF-8");
$editreason = @mb_convert_encoding($editreason, $charset, "UTF-8");
}
else if(my_strtolower($charset) == "iso-8859-1")
{
$message = utf8_decode($message);
$editreason = utf8_decode($editreason);
}
}
// Set up posthandler.
require_once MYBB_ROOT."inc/datahandlers/post.php";
$posthandler = new PostDataHandler("update");
$posthandler->action = "post";
// Set the post data that came from the input to the $post array.
$updatepost = array(
"pid" => $post['pid'],
"message" => $message,
"editreason" => $editreason,
"edit_uid" => $mybb->user['uid']
);
// If this is the first post set the prefix. If a forum requires a prefix the quick edit would throw an error otherwise
if($post['pid'] == $thread['firstpost'])
{
$updatepost['prefix'] = $thread['prefix'];
}
$posthandler->set_data($updatepost);
// Now let the post handler do all the hard work.
if(!$posthandler->validate_post())
{
$post_errors = $posthandler->get_friendly_errors();
xmlhttp_error($post_errors);
}
// No errors were found, we can call the update method.
else
{
$postinfo = $posthandler->update_post();
$visible = $postinfo['visible'];
if($visible == 0 && !is_moderator($post['fid'], "canviewunapprove"))
{
// Is it the first post?
if($thread['firstpost'] == $post['pid'])
{
echo json_encode(array("moderation_thread" => $lang->thread_moderation, 'url' => $mybb->settings['bburl'].'/'.get_forum_link($thread['fid']), "message" => $post['message']));
exit;
}
else
{
echo json_encode(array("moderation_post" => $lang->post_moderation, 'url' => $mybb->settings['bburl'].'/'.get_thread_link($thread['tid']), "message" => $post['message']));
exit;
}
}
}
require_once MYBB_ROOT."inc/class_parser.php";
$parser = new postParser;
$parser_options = array(
"allow_html" => $forum['allowhtml'],
"allow_mycode" => $forum['allowmycode'],
"allow_smilies" => $forum['allowsmilies'],
"allow_imgcode" => $forum['allowimgcode'],
"allow_videocode" => $forum['allowvideocode'],
"me_username" => $post['username'],
"filter_badwords" => 1
);
$post['username'] = htmlspecialchars_uni($post['username']);
if($post['smilieoff'] == 1)
{
$parser_options['allow_smilies'] = 0;
}
if($mybb->user['uid'] != 0 && $mybb->user['showimages'] != 1 || $mybb->settings['guestimages'] != 1 && $mybb->user['uid'] == 0)
{
$parser_options['allow_imgcode'] = 0;
}
if($mybb->user['uid'] != 0 && $mybb->user['showvideos'] != 1 || $mybb->settings['guestvideos'] != 1 && $mybb->user['uid'] == 0)
{
$parser_options['allow_videocode'] = 0;
}
$post['message'] = $parser->parse_message($message, $parser_options);
// Now lets fetch all of the attachments for these posts.
if($mybb->settings['enableattachments'] != 0)
{
$query = $db->simple_select("attachments", "*", "pid='{$post['pid']}'");
while($attachment = $db->fetch_array($query))
{
$attachcache[$attachment['pid']][$attachment['aid']] = $attachment;
}
require_once MYBB_ROOT."inc/functions_post.php";
get_post_attachments($post['pid'], $post);
}
// Figure out if we need to show an "edited by" message
// Only show if at least one of "showeditedby" or "showeditedbyadmin" is enabled
if($mybb->settings['showeditedby'] != 0 && $mybb->settings['showeditedbyadmin'] != 0)
{
$post['editdate'] = my_date('relative', TIME_NOW);
$post['editnote'] = $lang->sprintf($lang->postbit_edited, $post['editdate']);
$mybb->user['username'] = htmlspecialchars_uni($mybb->user['username']);
$post['editedprofilelink'] = build_profile_link($mybb->user['username'], $mybb->user['uid']);
$post['editreason'] = trim($editreason);
$editreason = "";
if($post['editreason'] != "")
{
$post['editreason'] = $parser->parse_badwords($post['editreason']);
$post['editreason'] = htmlspecialchars_uni($post['editreason']);
eval("\$editreason = \"".$templates->get("postbit_editedby_editreason")."\";");
}
eval("\$editedmsg = \"".$templates->get("postbit_editedby")."\";");
}
// Send our headers.
header("Content-type: application/json; charset={$charset}");
$editedmsg_response = null;
if(!empty($editedmsg))
{
$editedmsg_response = str_replace(array("\r", "\n"), "", $editedmsg);
}
$plugins->run_hooks("xmlhttp_update_post");
echo json_encode(array("message" => $post['message']."\n", "editedmsg" => $editedmsg_response));
exit;
}
}
// Fetch the list of multiquoted posts which are not in a specific thread
else if($mybb->input['action'] == "get_multiquoted")
{
// If the cookie does not exist, exit
if(!array_key_exists("multiquote", $mybb->cookies))
{
exit;
}
// Divide up the cookie using our delimeter
$multiquoted = explode("|", $mybb->cookies['multiquote']);
$plugins->run_hooks("xmlhttp_get_multiquoted_start");
// No values - exit
if(!is_array($multiquoted))
{
exit;
}
// Loop through each post ID and sanitize it before querying
foreach($multiquoted as $post)
{
$quoted_posts[$post] = (int)$post;
}
// Join the post IDs back together
$quoted_posts = implode(",", $quoted_posts);
// Fetch unviewable forums
$unviewable_forums = get_unviewable_forums();
$inactiveforums = get_inactive_forums();
if($unviewable_forums)
{
$unviewable_forums = "AND t.fid NOT IN ({$unviewable_forums})";
}
if($inactiveforums)
{
$inactiveforums = "AND t.fid NOT IN ({$inactiveforums})";
}
// Check group permissions if we can't view threads not started by us
$group_permissions = forum_permissions();
$onlyusfids = array();
foreach($group_permissions as $gpfid => $forum_permissions)
{
if(isset($forum_permissions['canonlyviewownthreads']) && $forum_permissions['canonlyviewownthreads'] == 1)
{
$onlyusfids[] = $gpfid;
}
}
$message = '';
// Are we loading all quoted posts or only those not in the current thread?
if(empty($mybb->input['load_all']))
{
$from_tid = "p.tid != '".$mybb->get_input('tid', MyBB::INPUT_INT)."' AND ";
}
else
{
$from_tid = '';
}
require_once MYBB_ROOT."inc/class_parser.php";
$parser = new postParser;
require_once MYBB_ROOT."inc/functions_posting.php";
$plugins->run_hooks("xmlhttp_get_multiquoted_intermediate");
// Query for any posts in the list which are not within the specified thread
$query = $db->query("
SELECT p.subject, p.message, p.pid, p.tid, p.username, p.dateline, t.fid, t.uid AS thread_uid, p.visible, u.username AS userusername
FROM ".TABLE_PREFIX."posts p
LEFT JOIN ".TABLE_PREFIX."threads t ON (t.tid=p.tid)
LEFT JOIN ".TABLE_PREFIX."users u ON (u.uid=p.uid)
WHERE {$from_tid}p.pid IN ({$quoted_posts}) {$unviewable_forums} {$inactiveforums}
ORDER BY p.dateline, p.pid
");
while($quoted_post = $db->fetch_array($query))
{
if(
(!is_moderator($quoted_post['fid'], "canviewunapprove") && $quoted_post['visible'] == 0) ||
(!is_moderator($quoted_post['fid'], "canviewdeleted") && $quoted_post['visible'] == -1) ||
(in_array($quoted_post['fid'], $onlyusfids) && (!$mybb->user['uid'] || $quoted_post['thread_uid'] != $mybb->user['uid']))
)
{
// Allow quoting from own unapproved post
if($quoted_post['visible'] == 0 && !($mybb->settings['showownunapproved'] && $quoted_post['uid'] == $mybb->user['uid']))
{
continue;
}
}
$message .= parse_quoted_message($quoted_post, false);
}
if($mybb->settings['maxquotedepth'] != '0')
{
$message = remove_message_quotes($message);
}
// Send our headers.
header("Content-type: application/json; charset={$charset}");
$plugins->run_hooks("xmlhttp_get_multiquoted_end");
echo json_encode(array("message" => $message));
exit;
}
else if($mybb->input['action'] == "refresh_captcha")
{
$imagehash = $db->escape_string($mybb->get_input('imagehash'));
$query = $db->simple_select("captcha", "dateline", "imagehash='$imagehash'");
if($db->num_rows($query) == 0)
{
xmlhttp_error($lang->captcha_not_exists);
}
$db->delete_query("captcha", "imagehash='$imagehash'");
$randomstr = random_str(5);
$imagehash = md5(random_str(12));
$regimagearray = array(
"imagehash" => $imagehash,
"imagestring" => $randomstr,
"dateline" => TIME_NOW
);
$plugins->run_hooks("xmlhttp_refresh_captcha");
$db->insert_query("captcha", $regimagearray);
header("Content-type: application/json; charset={$charset}");
echo json_encode(array("imagehash" => $imagehash));
exit;
}
else if($mybb->input['action'] == "validate_captcha")
{
header("Content-type: application/json; charset={$charset}");
$imagehash = $db->escape_string($mybb->get_input('imagehash'));
$query = $db->simple_select("captcha", "imagestring", "imagehash='$imagehash'");
if($db->num_rows($query) == 0)
{
echo json_encode($lang->captcha_valid_not_exists);
exit;
}
$imagestring = $db->fetch_field($query, 'imagestring');
$plugins->run_hooks("xmlhttp_validate_captcha");
if(my_strtolower($imagestring) == my_strtolower($mybb->get_input('imagestring')))
{
//echo json_encode(array("success" => $lang->captcha_matches));
echo json_encode("true");
exit;
}
else
{
echo json_encode($lang->captcha_does_not_match);
exit;
}
}
else if($mybb->input['action'] == "refresh_question" && $mybb->settings['securityquestion'])
{
header("Content-type: application/json; charset={$charset}");
$sid = $db->escape_string($mybb->get_input('question_id'));
$query = $db->query("
SELECT q.qid, s.sid
FROM ".TABLE_PREFIX."questionsessions s
LEFT JOIN ".TABLE_PREFIX."questions q ON (q.qid=s.qid)
WHERE q.active='1' AND s.sid='{$sid}'
");
if($db->num_rows($query) == 0)
{
xmlhttp_error($lang->answer_valid_not_exists);
}
$qsession = $db->fetch_array($query);
// Delete previous question session
$db->delete_query("questionsessions", "sid='$sid'");
require_once MYBB_ROOT."inc/functions_user.php";
$sid = generate_question($qsession['qid']);
$query = $db->query("
SELECT q.question, s.sid
FROM ".TABLE_PREFIX."questionsessions s
LEFT JOIN ".TABLE_PREFIX."questions q ON (q.qid=s.qid)
WHERE q.active='1' AND s.sid='{$sid}' AND q.qid!='{$qsession['qid']}'
");
$plugins->run_hooks("xmlhttp_refresh_question");
require_once MYBB_ROOT."inc/class_parser.php";
$parser = new postParser;
$parser_options = array(
"allow_html" => 0,
"allow_mycode" => 1,
"allow_smilies" => 1,
"allow_imgcode" => 1,
"allow_videocode" => 1,
"filter_badwords" => 1,
"me_username" => 0,
"shorten_urls" => 0,
"highlight" => 0,
);
if($db->num_rows($query) > 0)
{
$question = $db->fetch_array($query);
echo json_encode(array("question" => $parser->parse_message($question['question'], $parser_options), 'sid' => htmlspecialchars_uni($question['sid'])));
exit;
}
else
{
xmlhttp_error($lang->answer_valid_not_exists);
}
}
elseif($mybb->input['action'] == "validate_question" && $mybb->settings['securityquestion'])
{
header("Content-type: application/json; charset={$charset}");
$sid = $db->escape_string($mybb->get_input('question'));
$answer = $db->escape_string($mybb->get_input('answer'));
$query = $db->query("
SELECT q.*, s.sid
FROM ".TABLE_PREFIX."questionsessions s
LEFT JOIN ".TABLE_PREFIX."questions q ON (q.qid=s.qid)
WHERE q.active='1' AND s.sid='{$sid}'
");
if($db->num_rows($query) == 0)
{
echo json_encode($lang->answer_valid_not_exists);
exit;
}
else
{
$question = $db->fetch_array($query);
$valid_answers = preg_split("/\r\n|\n|\r/", $question['answer']);
$validated = 0;
foreach($valid_answers as $answers)
{
if(my_strtolower($answers) == my_strtolower($answer))
{
$validated = 1;
}
}
$plugins->run_hooks("xmlhttp_validate_question");
if($validated != 1)
{
echo json_encode($lang->answer_does_not_match);
exit;
}
else
{
echo json_encode("true");
exit;
}
}
exit;
}
else if($mybb->input['action'] == "complex_password")
{
$password = trim($mybb->get_input('password'));
$password = str_replace(array(unichr(160), unichr(173), unichr(0xCA), dec_to_utf8(8238), dec_to_utf8(8237), dec_to_utf8(8203)), array(" ", "-", "", "", "", ""), $password);
header("Content-type: application/json; charset={$charset}");
$plugins->run_hooks("xmlhttp_complex_password");
if(!preg_match("/^.*(?=.{".$mybb->settings['minpasswordlength'].",})(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).*$/", $password))
{
echo json_encode($lang->complex_password_fails);
}
else
{
// Return nothing but an OK password if passes regex
echo json_encode("true");
}
exit;
}
else if($mybb->input['action'] == "username_availability")
{
if(!verify_post_check($mybb->get_input('my_post_key'), true))
{
xmlhttp_error($lang->invalid_post_code);
}
require_once MYBB_ROOT."inc/functions_user.php";
$username = $mybb->get_input('username');
// Fix bad characters
$username = trim_blank_chrs($username);
$username = str_replace(array(unichr(160), unichr(173), unichr(0xCA), dec_to_utf8(8238), dec_to_utf8(8237), dec_to_utf8(8203)), array(" ", "-", "", "", "", ""), $username);
// Remove multiple spaces from the username
$username = preg_replace("#\s{2,}#", " ", $username);
header("Content-type: application/json; charset={$charset}");
if(empty($username))
{
echo json_encode($lang->banned_characters_username);
exit;
}
// Check if the username belongs to the list of banned usernames.
$banned_username = is_banned_username($username, true);
if($banned_username)
{
echo json_encode($lang->banned_username);
exit;
}
// Check for certain characters in username (<, >, &, and slashes)
if(strpos($username, "<") !== false || strpos($username, ">") !== false || strpos($username, "&") !== false || my_strpos($username, "\\") !== false || strpos($username, ";") !== false || strpos($username, ",") !== false || !validate_utf8_string($username, false, false))
{
echo json_encode($lang->banned_characters_username);
exit;
}
// Check if the username is actually already in use
$user = get_user_by_username($username);
$plugins->run_hooks("xmlhttp_username_availability");
if($user)
{
$lang->username_taken = $lang->sprintf($lang->username_taken, htmlspecialchars_uni($username));
echo json_encode($lang->username_taken);
exit;
}