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Mini Shell
Mini Shell
<?php
/**
* Main bbPress Akismet Class
*
* @package bbPress
* @subpackage Akismet
*/
// Exit if accessed directly
defined( 'ABSPATH' ) || exit;
if ( ! class_exists( 'BBP_Akismet' ) ) :
/**
* Loads Akismet extension
*
* @since 2.0.0 bbPress (r3277)
*
* @package bbPress
* @subpackage Akismet
*/
class BBP_Akismet {
/**
* The last post checked by Akismet.
*
* @since 2.0.0 bbPress (r3277)
*
* @var array $last_post Default empty array.
*/
protected $last_post = array();
/**
* The main bbPress Akismet loader
*
* @since 2.0.0 bbPress (r3277)
*/
public function __construct() {
$this->setup_actions();
}
/**
* Setup the admin hooks
*
* @since 2.0.0 bbPress (r3277)
*
* @access private
*/
private function setup_actions() {
// Prevent debug notices
$checks = array();
// bbPress functions to check for spam
$checks['check'] = array(
'bbp_new_topic_pre_insert' => 1, // New topic check
'bbp_new_reply_pre_insert' => 1, // New reply check
'bbp_edit_topic_pre_insert' => 1, // Edit topic check
'bbp_edit_reply_pre_insert' => 1 // Edit reply check
);
// bbPress functions for spam and ham submissions
$checks['submit'] = array(
'bbp_spammed_topic' => 10, // Spammed topic
'bbp_unspammed_topic' => 10, // Unspammed reply
'bbp_spammed_reply' => 10, // Spammed reply
'bbp_unspammed_reply' => 10, // Unspammed reply
);
// Add the checks
foreach ( $checks as $type => $functions ) {
foreach ( $functions as $function => $priority ) {
add_filter( $function, array( $this, $type . '_post' ), $priority );
}
}
// Update post meta
add_action( 'wp_insert_post', array( $this, 'update_post_meta' ), 10, 2 );
// Cleanup
add_action( 'akismet_scheduled_delete', array( $this, 'delete_old_spam' ) );
add_action( 'akismet_scheduled_delete', array( $this, 'delete_old_spam_meta' ) );
add_action( 'akismet_scheduled_delete', array( $this, 'delete_orphaned_spam_meta' ) );
// Admin
if ( is_admin() ) {
add_action( 'add_meta_boxes', array( $this, 'add_metaboxes' ) );
}
}
/**
* Converts topic/reply data into Akismet comment checking format
*
* @since 2.0.0 bbPress (r3277)
*
* @param array $post_data
*
* @return array Array of post data
*/
public function check_post( $post_data = array() ) {
// Define local variables
$user_data = array();
$post_permalink = '';
// Cast the post_author to 0 if it's empty
if ( empty( $post_data['post_author'] ) ) {
$post_data['post_author'] = 0;
}
/** Author ************************************************************/
$user_data['last_active'] = '';
$user_data['registered'] = date( 'Y-m-d H:i:s');
$user_data['total_posts'] = (int) bbp_get_user_post_count( $post_data['post_author'] );
// Get user data
$userdata = get_userdata( $post_data['post_author'] );
$anonymous_data = bbp_filter_anonymous_post_data();
// Author is anonymous
if ( ! bbp_has_errors() ) {
$user_data['name'] = $anonymous_data['bbp_anonymous_name'];
$user_data['email'] = $anonymous_data['bbp_anonymous_email'];
$user_data['website'] = $anonymous_data['bbp_anonymous_website'];
// Author is logged in
} elseif ( ! empty( $userdata ) ) {
$user_data['name'] = $userdata->display_name;
$user_data['email'] = $userdata->user_email;
$user_data['website'] = $userdata->user_url;
$user_data['registered'] = $userdata->user_registered;
// Missing author data, so set some empty strings
} else {
$user_data['name'] = '';
$user_data['email'] = '';
$user_data['website'] = '';
}
/** Post **************************************************************/
if ( ! empty( $post_data['post_parent'] ) ) {
// Use post parent for permalink
$post_permalink = get_permalink( $post_data['post_parent'] );
// Use post parent to get datetime of last reply on this topic
$reply_id = bbp_get_topic_last_reply_id( $post_data['post_parent'] );
if ( ! empty( $reply_id ) ) {
$user_data['last_active'] = get_post_field( 'post_date', $reply_id );
}
}
// Pass title & content together into comment content
$_post_content = trim( $post_data['post_title'] . "\n\n" . $post_data['post_content'] );
// Check if the post data is spammy...
$_post = $this->maybe_spam( array(
'comment_author' => $user_data['name'],
'comment_author_email' => $user_data['email'],
'comment_author_url' => $user_data['website'],
'comment_content' => $_post_content,
'comment_post_ID' => $post_data['post_parent'],
'comment_type' => $post_data['post_type'],
'comment_total' => $user_data['total_posts'],
'comment_last_active_gmt' => $user_data['last_active'],
'comment_account_registered_gmt' => $user_data['registered'],
'permalink' => $post_permalink,
'referrer' => wp_get_raw_referer(),
'user_agent' => bbp_current_author_ua(),
'user_ID' => $post_data['post_author'],
'user_ip' => bbp_current_author_ip(),
'user_role' => $this->get_user_roles( $post_data['post_author'] ),
) );
// Set the results (from maybe_spam() above)
$post_data['bbp_akismet_result_headers'] = $_post['bbp_akismet_result_headers'];
$post_data['bbp_akismet_result'] = $_post['bbp_akismet_result'];
$post_data['bbp_post_as_submitted'] = $_post;
// Avoid recursion by unsetting results from post-as-submitted
unset(
$post_data['bbp_post_as_submitted']['bbp_akismet_result_headers'],
$post_data['bbp_post_as_submitted']['bbp_akismet_result']
);
// Allow post_data to be manipulated
$post_data = apply_filters( 'bbp_akismet_check_post', $post_data );
// Parse and log the last response
$this->last_post = $this->parse_response( $post_data );
// Return the last response back to the filter
return $this->last_post;
}
/**
* Parse the response from the Akismet service, and alter the post data as
* necessary. For example, switch the status to `spam` if spammy.
*
* Note: this method also is responsible for allowing users who can moderate to
* never have their posts marked as spam. This is because they are "trusted"
* users. However, their posts are still sent to Akismet to be checked.
*
* @since 2.6.0 bbPress (r6873)
*
* @param array $post_data
*
* @return array
*/
private function parse_response( $post_data = array() ) {
// Get the parent ID of the post as submitted
$parent_id = ! empty( $post_data['bbp_post_as_submitted']['comment_post_ID'] )
? absint( $post_data['bbp_post_as_submitted']['comment_post_ID'] )
: 0;
// Allow moderators to skip spam (includes per-forum moderators via $parent_id)
$skip_spam = current_user_can( 'moderate', $parent_id );
// Bail early if current user can skip spam enforcement
if ( apply_filters( 'bbp_bypass_spam_enforcement', $skip_spam, $post_data ) ) {
return $post_data;
}
// Discard obvious spam
if ( get_option( 'akismet_strictness' ) ) {
// Akismet is 100% confident this is spam
if (
! empty( $post_data['bbp_akismet_result_headers']['x-akismet-pro-tip'] )
&&
( 'discard' === $post_data['bbp_akismet_result_headers']['x-akismet-pro-tip'] )
) {
// URL to redirect to (current, or forum root)
$redirect_to = ( ! empty( $_SERVER['HTTP_HOST'] ) && ! empty( $_SERVER['REQUEST_URI'] ) )
? bbp_get_url_scheme() . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']
: bbp_get_root_url();
// Do the redirect (post data not saved!)
bbp_redirect( $redirect_to );
}
}
// Result is spam, so set the status as such
if ( 'true' === $post_data['bbp_akismet_result'] ) {
// Let plugins do their thing
do_action( 'bbp_akismet_spam_caught' );
// Set post_status to spam
$post_data['post_status'] = bbp_get_spam_status_id();
// Filter spammy tags into meta data
add_filter( 'bbp_new_reply_pre_set_terms', array( $this, 'filter_post_terms' ), 1, 3 );
}
// Return the (potentially modified) post data
return $post_data;
}
/**
* Submit a post for spamming or hamming
*
* @since 2.0.0 bbPress (r3277)
*
* @param int $post_id
*
* @global string $akismet_api_host
* @global string $akismet_api_port
* @global object $current_user
* @global object $current_site
*
* @return array Array of existing topic terms
*/
public function submit_post( $post_id = 0 ) {
global $current_user, $current_site;
// Innocent until proven guilty
$request_type = 'ham';
$current_filter = current_filter();
// Check this filter and adjust the $request_type accordingly
switch ( $current_filter ) {
// Mysterious, and straight from the can
case 'bbp_spammed_topic' :
case 'bbp_spammed_reply' :
$request_type = 'spam';
break;
// Honey-glazed, a straight off the bone
case 'bbp_unspammed_topic' :
case 'bbp_unspammed_reply' :
$request_type = 'ham';
break;
// Possibly poison...
default :
return;
}
// Setup some variables
$post_id = (int) $post_id;
// Make sure we have a post
$_post = get_post( $post_id );
// Bail if get_post() fails
if ( empty( $_post ) ) {
return;
}
// Bail if we're spamming, but the post_status isn't spam
if ( ( 'spam' === $request_type ) && ( bbp_get_spam_status_id() !== $_post->post_status ) ) {
return;
}
// Pass title & content together into comment content
$_post_content = trim( $_post->post_title . "\n\n" . $_post->post_content );
// Set some default post_data
$post_data = array(
'comment_approved' => $_post->post_status,
'comment_author' => $_post->post_author ? get_the_author_meta( 'display_name', $_post->post_author ) : get_post_meta( $post_id, '_bbp_anonymous_name', true ),
'comment_author_email' => $_post->post_author ? get_the_author_meta( 'email', $_post->post_author ) : get_post_meta( $post_id, '_bbp_anonymous_email', true ),
'comment_author_url' => $_post->post_author ? bbp_get_user_profile_url( $_post->post_author ) : get_post_meta( $post_id, '_bbp_anonymous_website', true ),
'comment_content' => $_post_content,
'comment_date_gmt' => $_post->post_date_gmt,
'comment_ID' => $post_id,
'comment_post_ID' => $_post->post_parent,
'comment_type' => $_post->post_type,
'permalink' => get_permalink( $post_id ),
'user_ID' => $_post->post_author,
'user_ip' => get_post_meta( $post_id, '_bbp_author_ip', true ),
'user_role' => $this->get_user_roles( $_post->post_author ),
);
// Use the original version stored in post_meta if available
$as_submitted = get_post_meta( $post_id, '_bbp_akismet_as_submitted', true );
if ( $as_submitted && is_array( $as_submitted ) && isset( $as_submitted['comment_content'] ) ) {
$post_data = array_merge( $post_data, $as_submitted );
}
// Add the reporter IP address
$post_data['reporter_ip'] = bbp_current_author_ip();
// Add some reporter info
if ( is_object( $current_user ) ) {
$post_data['reporter'] = $current_user->user_login;
}
// Add the current site domain
if ( is_object( $current_site ) ) {
$post_data['site_domain'] = $current_site->domain;
}
// Place your slide beneath the microscope
$post_data = $this->maybe_spam( $post_data, 'submit', $request_type );
// Manual user action
if ( isset( $post_data['reporter'] ) ) {
// What kind of action
switch ( $request_type ) {
// Spammy
case 'spam' :
if ( 'topic' === $post_data['comment_type'] ) {
/* translators: %s: reporter name */
$message = sprintf( esc_html__( '%s reported this topic as spam', 'bbpress' ),
$post_data['reporter']
);
} elseif ( 'reply' === $post_data['comment_type'] ) {
/* translators: %s: reporter name */
$message = sprintf( esc_html__( '%s reported this reply as spam', 'bbpress' ),
$post_data['reporter']
);
} else {
/* translators: 1: reporter name, 2: comment type */
$message = sprintf( esc_html__( '%1$s reported this %2$s as spam', 'bbpress' ),
$post_data['reporter'],
$post_data['comment_type']
);
}
$this->update_post_history( $post_id, $message, 'report-spam' );
update_post_meta( $post_id, '_bbp_akismet_user_result', 'true' );
update_post_meta( $post_id, '_bbp_akismet_user', $post_data['reporter'] );
break;
// Hammy
case 'ham' :
if ( 'topic' === $post_data['comment_type'] ) {
/* translators: %s: reporter name */
$message = sprintf( esc_html__( '%s reported this topic as not spam', 'bbpress' ),
$post_data['reporter']
);
} elseif ( 'reply' === $post_data['comment_type'] ) {
/* translators: %s: reporter name */
$message = sprintf( esc_html__( '%s reported this reply as not spam', 'bbpress' ),
$post_data['reporter']
);
} else {
/* translators: 1: reporter name, 2: comment type */
$message = sprintf( esc_html__( '%1$s reported this %2$s as not spam', 'bbpress' ),
$post_data['reporter'],
$post_data['comment_type']
);
}
$this->update_post_history( $post_id, $message, 'report-ham' );
update_post_meta( $post_id, '_bbp_akismet_user_result', 'false' );
update_post_meta( $post_id, '_bbp_akismet_user', $post_data['reporter'] );
// @todo Topic term revision history
break;
// Possible other actions
default :
break;
}
}
do_action( 'bbp_akismet_submit_' . $request_type . '_post', $post_id, $post_data['bbp_akismet_result'] );
}
/**
* Ping Akismet service and check for spam/ham response
*
* @since 2.0.0 bbPress (r3277)
*
* @param array $post_data
* @param string $check Accepts check|submit
* @param string $spam Accepts spam|ham
*
* @global string $akismet_api_host
* @global string $akismet_api_port
*
* @return array Array of post data
*/
private function maybe_spam( $post_data = array(), $check = 'check', $spam = 'spam' ) {
global $akismet_api_host, $akismet_api_port;
// Define variables
$query_string = $path = '';
$response = array( '', '' );
// Make sure post data is an array
if ( ! is_array( $post_data ) ) {
$post_data = array();
}
// Populate post data
$post_data['blog'] = get_option( 'home' );
$post_data['blog_charset'] = get_option( 'blog_charset' );
$post_data['blog_lang'] = get_locale();
$post_data['referrer'] = wp_get_raw_referer();
$post_data['user_agent'] = bbp_current_author_ua();
// Loop through _POST args and rekey strings
if ( ! empty( $_POST ) && is_countable( $_POST ) ) {
foreach ( $_POST as $key => $value ) {
if ( is_string( $value ) ) {
$post_data[ 'POST_' . $key ] = $value;
}
}
}
// Loop through _SERVER args and remove allowed keys
if ( ! empty( $_SERVER ) && is_countable( $_SERVER ) ) {
// Keys to ignore
$ignore = array( 'HTTP_COOKIE', 'HTTP_COOKIE2', 'PHP_AUTH_PW' );
foreach ( $_SERVER as $key => $value ) {
// Key should not be ignored
if ( ! in_array( $key, $ignore, true ) && is_string( $value ) ) {
$post_data[ $key ] = $value;
// Key should be ignored
} else {
$post_data[ $key ] = '';
}
}
}
// Encode post data
if ( ! empty( $post_data ) && is_countable( $post_data ) ) {
foreach ( $post_data as $key => $data ) {
$query_string .= $key . '=' . urlencode( wp_unslash( $data ) ) . '&';
}
}
// Only accepts spam|ham
if ( ! in_array( $spam, array( 'spam', 'ham' ), true ) ) {
$spam = 'spam';
}
// Setup the API route
if ( 'check' === $check ) {
$path = '/1.1/comment-check';
} elseif ( 'submit' === $check ) {
$path = '/1.1/submit-' . $spam;
}
// Send data to Akismet
if ( ! apply_filters( 'bbp_bypass_check_for_spam', false, $post_data ) ) {
$response = $this->http_post( $query_string, $akismet_api_host, $path, $akismet_api_port );
}
// Set the result headers
$post_data['bbp_akismet_result_headers'] = ! empty( $response[0] )
? $response[0] // raw
: esc_html__( 'No response', 'bbpress' );
// Set the result
$post_data['bbp_akismet_result'] = ! empty( $response[1] )
? $response[1] // raw
: esc_html__( 'No response', 'bbpress' );
// Return the post data, with the results of the external Akismet request
return $post_data;
}
/**
* Update post meta after a spam check
*
* @since 2.0.0 bbPress (r3308)
*
* @param int $post_id
* @param object $_post
*
* @global object $this->last_post
*/
public function update_post_meta( $post_id = 0, $_post = false ) {
// Define local variable(s)
$as_submitted = false;
// Setup some variables
$post_id = (int) $post_id;
// Ensure we have a post object
if ( empty( $_post ) ) {
$_post = get_post( $post_id );
}
// Set up Akismet last post data
if ( ! empty( $this->last_post['bbp_post_as_submitted'] ) ) {
$as_submitted = $this->last_post['bbp_post_as_submitted'];
}
// wp_insert_post() might be called in other contexts. Ensure this is
// the same topic/reply as was checked by BBP_Akismet::check_post()
if ( is_object( $_post ) && ! empty( $this->last_post ) && is_array( $as_submitted ) ) {
// Get user data
$userdata = get_userdata( $_post->post_author );
$anonymous_data = bbp_filter_anonymous_post_data();
// Which name?
$name = ! empty( $anonymous_data['bbp_anonymous_name'] )
? $anonymous_data['bbp_anonymous_name']
: $userdata->display_name;
// Which email?
$email = ! empty( $anonymous_data['bbp_anonymous_email'] )
? $anonymous_data['bbp_anonymous_email']
: $userdata->user_email;
// More checks
if (
// Post matches
( intval( $as_submitted['comment_post_ID'] ) === intval( $_post->post_parent ) )
&&
// Name matches
( $as_submitted['comment_author'] === $name )
&&
// Email matches
( $as_submitted['comment_author_email'] === $email )
) {
// Delete old content daily
if ( ! wp_next_scheduled( 'akismet_scheduled_delete' ) ) {
wp_schedule_event( time(), 'daily', 'akismet_scheduled_delete' );
}
// Normal result: true
if ( ! empty( $this->last_post['bbp_akismet_result'] ) && ( $this->last_post['bbp_akismet_result'] === 'true' ) ) {
// Leave a trail so other's know what we did
update_post_meta( $post_id, '_bbp_akismet_result', 'true' );
$this->update_post_history(
$post_id,
esc_html__( 'Akismet caught this post as spam', 'bbpress' ),
'check-spam'
);
// If post_status isn't the spam status, as expected, leave a note
if ( bbp_get_spam_status_id() !== $_post->post_status ) {
$this->update_post_history(
$post_id,
sprintf(
esc_html__( 'Post status was changed to %s', 'bbpress' ),
$_post->post_status
),
'status-changed-' . $_post->post_status
);
}
// Normal result: false
} elseif ( ! empty( $this->last_post['bbp_akismet_result'] ) && ( $this->last_post['bbp_akismet_result'] === 'false' ) ) {
// Leave a trail so other's know what we did
update_post_meta( $post_id, '_bbp_akismet_result', 'false' );
$this->update_post_history(
$post_id,
esc_html__( 'Akismet cleared this post as not spam', 'bbpress' ),
'check-ham'
);
// If post_status is the spam status, which isn't expected, leave a note
if ( bbp_get_spam_status_id() === $_post->post_status ) {
$this->update_post_history(
$post_id,
sprintf(
esc_html__( 'Post status was changed to %s', 'bbpress' ),
$_post->post_status
),
'status-changed-' . $_post->post_status
);
}
// Abnormal result: error
} else {
// Leave a trail so other's know what we did
update_post_meta( $post_id, '_bbp_akismet_error', time() );
$this->update_post_history(
$post_id,
sprintf(
esc_html__( 'Akismet was unable to check this post (response: %s), will automatically retry again later.', 'bbpress' ),
$this->last_post['bbp_akismet_result']
),
'check-error'
);
}
// Record the complete original data as submitted for checking
if ( isset( $this->last_post['bbp_post_as_submitted'] ) ) {
update_post_meta(
$post_id,
'_bbp_akismet_as_submitted',
$this->last_post['bbp_post_as_submitted']
);
}
}
}
}
/**
* Update Akismet history of a Post
*
* @since 2.0.0 bbPress (r3308)
*
* @param int $post_id
* @param string $message
* @param string $event
*/
private function update_post_history( $post_id = 0, $message = null, $event = null ) {
// Define local variable(s)
$user = '';
// Get the current user
$current_user = wp_get_current_user();
// Get the user's login name if possible
if ( is_object( $current_user ) && isset( $current_user->user_login ) ) {
$user = $current_user->user_login;
}
// This used to be akismet_microtime() but it was removed in 3.0
$mtime = explode( ' ', microtime() );
$message_time = $mtime[1] + $mtime[0];
// Setup the event to be saved
$event = array(
'time' => $message_time,
'message' => $message,
'event' => $event,
'user' => $user,
);
// Save the event data
add_post_meta( $post_id, '_bbp_akismet_history', $event );
}
/**
* Get the Akismet history of a Post
*
* @since 2.0.0 bbPress (r3308)
*
* @param int $post_id
*
* @return array Array of Akismet history
*/
public function get_post_history( $post_id = 0 ) {
// Retrieve any previous history
$history = get_post_meta( $post_id, '_bbp_akismet_history' );
// Sort it by the time recorded
usort( $history, 'akismet_cmp_time' );
return $history;
}
/**
* Handle any terms submitted with a post flagged as spam
*
* @since 2.0.0 bbPress (r3308)
*
* @param string $terms Comma-separated list of terms
* @param int $topic_id
* @param int $reply_id
*
* @return array Array of existing topic terms
*/
public function filter_post_terms( $terms = '', $topic_id = 0, $reply_id = 0 ) {
// Validate the reply_id and topic_id
$reply_id = bbp_get_reply_id( $reply_id );
$topic_id = bbp_get_topic_id( $topic_id );
// Get any pre-existing terms
$existing_terms = bbp_get_topic_tag_names( $topic_id );
// Save the terms for later in case the reply gets hammed
if ( ! empty( $terms ) ) {
update_post_meta( $reply_id, '_bbp_akismet_spam_terms', $terms );
}
// Keep the topic tags the same for now
return $existing_terms;
}
/**
* Submit data to Akismet service with unique bbPress User Agent
*
* This code is directly taken from the akismet_http_post() function and
* documented to bbPress 2.0 standard.
*
* @since 2.0.0 bbPress (r3466)
*
* @param string $request The request we are sending
* @param string $host The host to send our request to
* @param string $path The path from the host
* @param string $port The port to use
* @param string $ip Optional Override $host with an IP address
* @return mixed WP_Error on error, array on success, empty on failure
*/
private function http_post( $request, $host, $path, $port = 80, $ip = '' ) {
// Preload required variables
$bbp_version = bbp_get_version();
$ak_version = constant( 'AKISMET_VERSION' );
$http_host = $host;
$blog_charset = get_option( 'blog_charset' );
// User Agent & Content Type
$akismet_ua = "bbPress/{$bbp_version} | Akismet/{$ak_version}";
$content_type = 'application/x-www-form-urlencoded; charset=' . $blog_charset;
// Use specific IP (if provided)
if ( ! empty( $ip ) && long2ip( ip2long( $ip ) ) ) {
$http_host = $ip;
}
// Setup the arguments
$http_args = array(
'httpversion' => '1.0',
'timeout' => 15,
'body' => $request,
'headers' => array(
'Content-Type' => $content_type,
'Host' => $host,
'User-Agent' => $akismet_ua
)
);
// Return the response
return $this->get_response( $http_host . $path, $http_args );
}
/**
* Handles the repeated calls to wp_remote_post(), including SSL support.
*
* @since 2.6.7 (bbPress r7194)
*
* @param string $host_and_path Scheme-less URL
* @param array $http_args Array of arguments for wp_remote_post()
* @return array
*/
private function get_response( $host_and_path = '', $http_args = array() ) {
// Default variables
$akismet_url = $http_akismet_url = 'http://' . $host_and_path;
$is_ssl = $ssl_failed = false;
$now = time();
// Check if SSL requests were disabled fewer than 24 hours ago
$ssl_disabled_time = get_option( 'akismet_ssl_disabled' );
// Clean-up if 24 hours have passed
if ( ! empty( $ssl_disabled_time ) && ( $ssl_disabled_time < ( $now - DAY_IN_SECONDS ) ) ) {
delete_option( 'akismet_ssl_disabled' );
$ssl_disabled_time = false;
}
// Maybe HTTPS if not disabled
if ( empty( $ssl_disabled_time ) && ( $is_ssl = wp_http_supports( array( 'ssl' ) ) ) ) {
$akismet_url = set_url_scheme( $akismet_url, 'https' );
}
// Initial remote request
$response = wp_remote_post( $akismet_url, $http_args );
// Initial request produced an error, so retry...
if ( ! empty( $is_ssl ) && is_wp_error( $response ) ) {
// Intermittent connection problems may cause the first HTTPS
// request to fail and subsequent HTTP requests to succeed randomly.
// Retry the HTTPS request once before disabling SSL for a time.
$response = wp_remote_post( $akismet_url, $http_args );
// SSL request failed twice, so try again without it
if ( is_wp_error( $response ) ) {
$response = wp_remote_post( $http_akismet_url, $http_args );
$ssl_failed = true;
}
}
// Bail if errored
if ( is_wp_error( $response ) ) {
return array( '', '' );
}
// Maybe disable SSL for future requests
if ( ! empty( $ssl_failed ) ) {
update_option( 'akismet_ssl_disabled', $now );
}
// No errors so return response
return array(
$response['headers'],
$response['body']
);
}
/**
* Return a user's roles on this site (including super_admin)
*
* @since 2.3.0 bbPress (r4812)
*
* @param int $user_id
*
* @return boolean
*/
private function get_user_roles( $user_id = 0 ) {
// Default return value
$roles = array();
// Bail if cannot query the user
if ( ! class_exists( 'WP_User' ) || empty( $user_id ) ) {
return false;
}
// User ID
$user = new WP_User( $user_id );
if ( isset( $user->roles ) ) {
$roles = (array) $user->roles;
}
// Super admin
if ( is_multisite() && is_super_admin( $user_id ) ) {
$roles[] = 'super_admin';
}
return implode( ',', $roles );
}
/** Admin *****************************************************************/
/**
* Add Aksimet History meta-boxes to topics and replies
*
* @since 2.4.0 bbPress (r5049)
*/
public function add_metaboxes() {
// Topics
add_meta_box(
'bbp_akismet_topic_history',
__( 'Akismet History', 'bbpress' ),
array( $this, 'history_metabox' ),
bbp_get_topic_post_type(),
'normal',
'core'
);
// Replies
add_meta_box(
'bbp_akismet_reply_history',
__( 'Akismet History', 'bbpress' ),
array( $this, 'history_metabox' ),
bbp_get_reply_post_type(),
'normal',
'core'
);
}
/**
* Output for Akismet History meta-box
*
* @since 2.4.0 bbPress (r5049)
*/
public function history_metabox() {
// Post ID
$history = $this->get_post_history( get_the_ID() ); ?>
<div class="akismet-history" style="margin: 13px 0;">
<?php if ( ! empty( $history ) ) : ?>
<table>
<tbody>
<?php foreach ( $history as $row ) : ?>
<tr>
<td style="color: #999; text-align: right; white-space: nowrap;">
<span title="<?php echo esc_attr( date( 'D d M Y @ h:i:m a', $row['time'] ) . ' GMT' ); ?>">
<?php bbp_time_since( $row['time'], false, true ); ?>
</span>
</td>
<td style="padding-left: 5px;">
<?php echo esc_html( $row['message'] ); ?>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
<?php else : ?>
<p><?php esc_html_e( 'No recorded history. Akismet has not checked this post.', 'bbpress' ); ?></p>
<?php endif; ?>
</div>
<?php
}
/**
* Get the number of rows to delete in a single clean-up query.
*
* @since 2.6.9 bbPress (r7225)
*
* @param string $filter The name of the filter to run.
* @return int
*/
public function get_delete_limit( $filter = '' ) {
// Default filter
if ( empty( $filter ) ) {
$filter = '_bbp_akismet_delete_spam_limit';
}
/**
* Determines how many rows will be deleted in each batch.
*
* @param int The number of rows. Default 1000.
*/
$delete_limit = (int) apply_filters( $filter, 1000 );
// Validate and return the deletion limit
return max( 1, $delete_limit );
}
/**
* Get the interval (in days) for spam to remain in the queue.
*
* @since 2.6.9 bbPress (r7225)
*
* @param string $filter The name of the filter to run.
* @return int
*/
public function get_delete_interval( $filter = '' ) {
// Default filter
if ( empty( $filter ) ) {
$filter = '_bbp_akismet_delete_spam_interval';
}
/**
* Determines how many days a piece of spam will be left in the Spam
* queue before being deleted.
*
* @param int The number of days. Default 15.
*/
$delete_interval = (int) apply_filters( $filter, 15 );
// Validate and return the deletion interval
return max( 1, $delete_interval );
}
/**
* Deletes old spam topics & replies from the queue after 15 days
* (determined by `_bbp_akismet_delete_spam_interval` filter)
* since they are not useful in the long term.
*
* @since 2.6.7 bbPress (r7203)
*
* @global wpdb $wpdb
*/
public function delete_old_spam() {
global $wpdb;
// Get the deletion limit & interval
$delete_limit = $this->get_delete_limit( '_bbp_akismet_delete_spam_limit' );
$delete_interval = $this->get_delete_interval( '_bbp_akismet_delete_spam_interval' );
// Setup the query
$sql = "SELECT id FROM {$wpdb->posts} WHERE post_type IN ('topic', 'reply') AND post_status = 'spam' AND DATE_SUB(NOW(), INTERVAL %d DAY) > post_date_gmt LIMIT %d";
// Query loop of topic & reply IDs
while ( $spam_ids = $wpdb->get_col( $wpdb->prepare( $sql, $delete_interval, $delete_limit ) ) ) {
// Exit loop if no spam IDs
if ( empty( $spam_ids ) ) {
break;
}
// Reset queries
$wpdb->queries = array();
// Loop through each of the topic/reply IDs
foreach ( $spam_ids as $spam_id ) {
/**
* Perform a single action on the single topic/reply ID for
* simpler batch processing.
*
* Maybe we should run the bbp_delete_topic or bbp_delete_reply
* actions here, too?
*
* @param string The current function.
* @param int The current topic/reply ID.
*/
do_action( '_bbp_akismet_batch_delete', __FUNCTION__, $spam_id );
}
// Prepared as strings since id is an unsigned BIGINT, and using %
// will constrain the value to the maximum signed BIGINT.
$format_string = implode( ', ', array_fill( 0, count( $spam_ids ), '%s' ) );
// Run the delete queries
$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->posts} WHERE ID IN ( {$format_string} )", $spam_ids ) );
$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->postmeta} WHERE post_id IN ( {$format_string} )", $spam_ids ) );
// Clean the post cache for these topics & replies
clean_post_cache( $spam_ids );
/**
* Single action that encompasses all topic/reply IDs after the
* delete queries have been run.
*
* @param int Count of topic/reply IDs
* @param array Array of topic/reply IDs
*/
do_action( '_bbp_akismet_delete_spam_count', count( $spam_ids ), $spam_ids );
}
/**
* Determines whether tables should be optimized.
*
* @param int Random number between 1 and 5000.
*/
$optimize = (int) apply_filters( '_bbp_akismet_optimize_tables', mt_rand( 1, 5000 ), array( $wpdb->posts, $wpdb->postmeta ) );
// Lucky number 11
if ( 11 === $optimize ) {
$wpdb->query( "OPTIMIZE TABLE {$wpdb->posts}" );
$wpdb->query( "OPTIMIZE TABLE {$wpdb->postmeta}" );
}
}
/**
* Deletes `_bbp_akismet_as_submitted` meta keys after 15 days
* (determined by `_bbp_akismet_delete_spam_meta_interval` filter)
* since they are large and not useful in the long term.
*
* @since 2.6.7 bbPress (r7203)
*
* @global wpdb $wpdb
*/
public function delete_old_spam_meta() {
global $wpdb;
// Get the deletion limit & interval
$delete_limit = $this->get_delete_limit( '_bbp_akismet_delete_spam_meta_limit' );
$delete_interval = $this->get_delete_interval( '_bbp_akismet_delete_spam_meta_interval' );
// Setup the query
$sql = "SELECT m.post_id FROM {$wpdb->postmeta} as m INNER JOIN {$wpdb->posts} as p ON m.post_id = p.ID WHERE m.meta_key = '_bbp_akismet_as_submitted' AND DATE_SUB(NOW(), INTERVAL %d DAY) > p.post_date_gmt LIMIT %d";
// Query loop of topic & reply IDs
while ( $spam_ids = $wpdb->get_col( $wpdb->prepare( $sql, $delete_interval, $delete_limit ) ) ) {
// Exit loop if no spam IDs
if ( empty( $spam_ids ) ) {
break;
}
// Reset queries
$wpdb->queries = array();
// Loop through each of the topic/reply IDs
foreach ( $spam_ids as $spam_id ) {
// Delete the as_submitted meta data
delete_post_meta( $spam_id, '_bbp_akismet_as_submitted' );
/**
* Perform a single action on the single topic/reply ID for
* simpler batch processing.
*
* @param string The current function.
* @param int The current topic/reply ID.
*/
do_action( '_bbp_akismet_batch_delete', __FUNCTION__, $spam_id );
}
/**
* Single action that encompasses all topic/reply IDs after the
* delete queries have been run.
*
* @param int Count of topic/reply IDs
* @param array Array of topic/reply IDs
*/
do_action( '_bbp_akismet_delete_spam_meta_count', count( $spam_ids ), $spam_ids );
}
// Maybe optimize
$this->maybe_optimize_postmeta();
}
/**
* Clears post meta that no longer has corresponding posts in the database
* (determined by `_bbp_akismet_delete_spam_orphaned_limit` filter)
* since it is not useful in the long term.
*
* @since 2.6.7 bbPress (r7203)
*
* @global wpdb $wpdb
*/
public function delete_orphaned_spam_meta() {
global $wpdb;
// Get the deletion limit
$delete_limit = $this->get_delete_limit( '_bbp_akismet_delete_spam_orphaned_limit' );
// Default last meta ID
$last_meta_id = 0;
// Start time (float)
$start_time = isset( $_SERVER['REQUEST_TIME_FLOAT'] )
? (float) $_SERVER['REQUEST_TIME_FLOAT']
: microtime( true );
// Maximum time
$max_exec_time = (float) max( ini_get( 'max_execution_time' ) - 5, 3 );
// Setup the query
$sql = "SELECT m.meta_id, m.post_id, m.meta_key"
. " FROM {$wpdb->postmeta} as m"
. " LEFT JOIN {$wpdb->posts} as p"
. " ON m.post_id = p.ID"
. " WHERE p.ID IS NULL"
. " AND m.meta_id > %d"
. " AND m.meta_key LIKE 'akismet\\_%'"
. " ORDER BY m.meta_id"
. " LIMIT %d";
// Query loop of topic & reply IDs
while ( $spam_meta_results = $wpdb->get_results( $wpdb->prepare( $sql, $last_meta_id, $delete_limit ) ) ) {
// Exit loop if no spam IDs
if ( empty( $spam_meta_results ) ) {
break;
}
// Reset queries
$wpdb->queries = array();
// Reset deleted meta count
$spam_meta_deleted = array();
// Loop through each of the metas
foreach ( $spam_meta_results as $spam_meta ) {
// Skip if not an Akismet key
if ( 'akismet_' !== substr( $spam_meta->meta_key, 0, 8 ) ) {
continue;
}
// Delete the meta
delete_post_meta( $spam_meta->post_id, $spam_meta->meta_key );
/**
* Perform a single action on the single topic/reply ID for
* simpler batch processing.
*
* @param string The current function.
* @param int The current topic/reply ID.
*/
do_action( '_bbp_akismet_batch_delete', __FUNCTION__, $spam_meta );
// Stash the meta ID being deleted
$spam_meta_deleted[] = $last_meta_id = $spam_meta->meta_id;
}
/**
* Single action that encompasses all topic/reply IDs after the
* delete queries have been run.
*
* @param int Count of spam meta IDs
* @param array Array of spam meta IDs
*/
do_action( '_bbp_akismet_delete_spam_meta_count', count( $spam_meta_deleted ), $spam_meta_deleted );
// Break if getting close to max_execution_time.
if ( ( microtime( true ) - $start_time ) > $max_exec_time ) {
break;
}
}
// Maybe optimize
$this->maybe_optimize_postmeta();
}
/**
* Maybe OPTIMIZE the _postmeta database table.
*
* @since 2.7.0 bbPress (r7203)
*
* @global wpdb $wpdb
*/
private function maybe_optimize_postmeta() {
global $wpdb;
/**
* Determines whether tables should be optimized.
*
* @param int Random number between 1 and 5000.
*/
$optimize = (int) apply_filters( '_bbp_akismet_optimize_table', mt_rand( 1, 5000 ), $wpdb->postmeta );
// Lucky number 11
if ( 11 === $optimize ) {
$wpdb->query( "OPTIMIZE TABLE {$wpdb->postmeta}" );
}
}
}
endif;
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