/**
* Contact Akismet to check if this is spam or ham
*
* Props to WordPress core Akismet plugin for alot of this
*
* @global string $akismet_api_host
* @global string $akismet_api_port
* @param array $activity_data Packet of information to submit to Akismet
* @param string $check "check" or "submit"
* @param string $spam "spam" or "ham"
* @since BuddyPress (1.6)
*/
public function send_akismet_request($activity_data, $check = 'check', $spam = 'spam')
{
global $akismet_api_host, $akismet_api_port;
// Check that host and port are set, if not, set them
if (function_exists('akismet_init') && (empty($akismet_api_host) || empty($akismet_api_port))) {
akismet_init();
}
$query_string = $path = $response = '';
$activity_data['blog'] = bp_get_option('home');
$activity_data['blog_charset'] = bp_get_option('blog_charset');
$activity_data['blog_lang'] = get_locale();
$activity_data['referrer'] = $_SERVER['HTTP_REFERER'];
$activity_data['user_agent'] = bp_core_current_user_ua();
$activity_data['user_ip'] = bp_core_current_user_ip();
if (akismet_test_mode()) {
$activity_data['is_test'] = 'true';
}
// Loop through _POST args and rekey strings
foreach ($_POST as $key => $value) {
if (is_string($value) && 'cookie' != $key) {
$activity_data['POST_' . $key] = $value;
}
}
// Keys to ignore
$ignore = array('HTTP_COOKIE', 'HTTP_COOKIE2', 'PHP_AUTH_PW');
// Loop through _SERVER args and remove whitelisted keys
foreach ($_SERVER as $key => $value) {
// Key should not be ignored
if (!in_array($key, $ignore) && is_string($value)) {
$activity_data[$key] = $value;
// Key should be ignored
} else {
$activity_data[$key] = '';
}
}
foreach ($activity_data as $key => $data) {
$query_string .= $key . '=' . urlencode(stripslashes($data)) . '&';
}
if ('check' == $check) {
$path = '/1.1/comment-check';
} elseif ('submit' == $check) {
$path = '/1.1/submit-' . $spam;
}
// Send to Akismet
add_filter('akismet_ua', array($this, 'buddypress_ua'));
$response = akismet_http_post($query_string, $akismet_api_host, $path, $akismet_api_port);
remove_filter('akismet_ua', array($this, 'buddypress_ua'));
// Get the response
if (!empty($response[1]) && !is_wp_error($response[1])) {
$activity_data['bp_as_result'] = $response[1];
} else {
$activity_data['bp_as_result'] = false;
}
// Perform a daily tidy up
if (!wp_next_scheduled('bp_activity_akismet_delete_old_metadata')) {
wp_schedule_event(time(), 'daily', 'bp_activity_akismet_delete_old_metadata');
}
return $activity_data;
}
/**
* Check for blocked keys.
*
* @since 1.6.0
*
* @uses bp_current_author_ip() To get current user IP address.
* @uses bp_current_author_ua() To get current user agent.
* @uses bp_current_user_can() Allow super admins to bypass blacklist.
*
* @param int $user_id Topic or reply author ID.
* @param string $title The title of the content.
* @param string $content The content being posted.
* @return bool True if test is passed, false if fail.
*/
function bp_core_check_for_blacklist($user_id = 0, $title = '', $content = '')
{
/**
* Filters whether or not to bypass checking for blocked keys.
*
* @since 2.2.0
*
* @param bool $value Whether or not to bypass checking. Default false.
* @param int $user_id Topic of reply author ID.
* @param string $title The title of the content.
* @param string $content $the content being posted.
*/
if (apply_filters('bp_bypass_check_for_blacklist', false, $user_id, $title, $content)) {
return true;
}
// Bail if super admin is author.
if (is_super_admin($user_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 current user data.
if (!empty($user_id)) {
// Get author data.
$user = get_userdata($user_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'] = bp_core_current_user_ip();
$_post['user_ua'] = bp_core_current_user_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;
}
/**
* Check for blocked keys.
*
* @since BuddyPress (1.6.0)
*
* @uses bp_current_author_ip() To get current user IP address.
* @uses bp_current_author_ua() To get current user agent.
* @uses bp_current_user_can() Allow super admins to bypass blacklist.
*
* @param int $user_id Topic or reply author ID.
* @param string $title The title of the content.
* @param string $content The content being posted.
* @return bool True if test is passed, false if fail.
*/
function bp_core_check_for_blacklist($user_id = 0, $title = '', $content = '')
{
// Bail if super admin is author
if (is_super_admin($user_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 current user data
if (!empty($user_id)) {
// Get author data
$user = get_userdata($user_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'] = bp_core_current_user_ip();
$post['user_ua'] = bp_core_current_user_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;
}
