/**
* Checks topics and replies against the discussion blacklist of blocked keys
*
* @since 2.0.0 bbPress (r3446)
*
* @param array $anonymous_data Anonymous user data
* @param int $author_id Topic or reply author ID
* @param string $title The title of the content
* @param string $content The content being posted
* @uses bbp_is_user_keymaster() Allow keymasters to bypass blacklist
* @uses bbp_current_author_ip() To get current user IP address
* @uses bbp_current_author_ua() To get current user agent
* @return bool True if test is passed, false if fail
*/
function bbp_check_for_blacklist($anonymous_data = false, $author_id = 0, $title = '', $content = '')
{
// Allow for blacklist check to be skipped
if (apply_filters('bbp_bypass_check_for_blacklist', false, $anonymous_data, $author_id, $title, $content)) {
return true;
}
// Bail if keymaster is author
if (!empty($author_id) && bbp_is_user_keymaster($author_id)) {
return true;
}
/** Blacklist *************************************************************/
/**
* Filters the bbPress blacklist keys.
*
* @since 2.6.0 bbPress (r6050)
*
* @param string $blacklist List of blacklist keys. One per new line.
*/
$blacklist = apply_filters('bbp_blacklist_keys', trim(get_option('blacklist_keys')));
// Bail if blacklist is empty
if (empty($blacklist)) {
return true;
}
/** User Data *************************************************************/
// Define local variable
$_post = array();
// Map anonymous user data
if (!empty($anonymous_data)) {
$_post['author'] = $anonymous_data['bbp_anonymous_name'];
$_post['email'] = $anonymous_data['bbp_anonymous_email'];
$_post['url'] = $anonymous_data['bbp_anonymous_website'];
// Map current user data
} elseif (!empty($author_id)) {
// Get author data
$user = get_userdata($author_id);
// If data exists, map it
if (!empty($user)) {
$_post['author'] = $user->display_name;
$_post['email'] = $user->user_email;
$_post['url'] = $user->user_url;
}
}
// Current user IP and user agent
$_post['user_ip'] = bbp_current_author_ip();
$_post['user_ua'] = bbp_current_author_ua();
// Post title and content
$_post['title'] = $title;
$_post['content'] = $content;
// Ensure HTML tags are not being used to bypass the blacklist.
$_post['comment_without_html'] = wp_strip_all_tags($content);
/** Words *****************************************************************/
// Get words separated by new lines
$words = explode("\n", $blacklist);
// Loop through words
foreach ((array) $words as $word) {
// Trim the whitespace from the word
$word = trim($word);
// Skip empty lines
if (empty($word)) {
continue;
}
// Do some escaping magic so that '#' chars in the
// spam words don't break things:
$word = preg_quote($word, '#');
$pattern = "#{$word}#i";
// Loop through post data
foreach ($_post as $post_data) {
// Check each user data for current word
if (preg_match($pattern, $post_data)) {
// Post does not pass
return false;
}
}
}
// Check passed successfully
return true;
}
/**
* Checks topics and replies against the discussion blacklist of blocked keys
*
* @since bbPress (r3446)
*
* @param array $anonymous_data Anonymous user data
* @param int $author_id Topic or reply author ID
* @param string $title The title of the content
* @param string $content The content being posted
* @uses is_super_admin() Allow super admins to bypass blacklist
* @uses bbp_current_author_ip() To get current user IP address
* @uses bbp_current_author_ua() To get current user agent
* @return bool True if test is passed, false if fail
*/
function bbp_check_for_blacklist($anonymous_data = false, $author_id = 0, $title = '', $content = '')
{
// Bail if super admin is author
if (is_super_admin($author_id)) {
return true;
}
// Define local variable
$_post = array();
/** Blacklist *************************************************************/
// Get the moderation keys
$blacklist = trim(get_option('blacklist_keys'));
// Bail if blacklist is empty
if (empty($blacklist)) {
return true;
}
/** User Data *************************************************************/
// Map anonymous user data
if (!empty($anonymous_data)) {
$_post['author'] = $anonymous_data['bbp_anonymous_name'];
$_post['email'] = $anonymous_data['bbp_anonymous_email'];
$_post['url'] = $anonymous_data['bbp_anonymous_website'];
// Map current user data
} elseif (!empty($author_id)) {
// Get author data
$user = get_userdata($author_id);
// If data exists, map it
if (!empty($user)) {
$_post['author'] = $user->display_name;
$_post['email'] = $user->user_email;
$_post['url'] = $user->user_url;
}
}
// Current user IP and user agent
$_post['user_ip'] = bbp_current_author_ip();
$_post['user_ua'] = bbp_current_author_ua();
// Post title and content
$_post['title'] = $title;
$_post['content'] = $content;
/** Words *****************************************************************/
// Get words separated by new lines
$words = explode("\n", $blacklist);
// Loop through words
foreach ((array) $words as $word) {
// Trim the whitespace from the word
$word = trim($word);
// Skip empty lines
if (empty($word)) {
continue;
}
// Do some escaping magic so that '#' chars in the
// spam words don't break things:
$word = preg_quote($word, '#');
$pattern = "#{$word}#i";
// Loop through post data
foreach ($_post as $post_data) {
// Check each user data for current word
if (preg_match($pattern, $post_data)) {
// Post does not pass
return false;
}
}
}
// Check passed successfully
return true;
}
