<?php
/*
Plugin Name: Akismet
Plugin URI: http://akismet.com/
Description: Akismet checks your comments against the Akismet web service to see if they look like spam or not. You need a
WordPress.com API key to use it. You can review the spam it catches under "Comments." To show off your Akismet stats just put
<?php akismet_counter(); ?> in your template. See also:
WP Stats plugin.
Version: 2.1.5
Author: Matt Mullenweg
Author URI: http://photomatt.net/
*/
// If you hardcode a WP.com API key here, all key config screens will be hidden
$wpcom_api_key = '';
function akismet_init() {
global $wpcom_api_key, $akismet_api_host, $akismet_api_port;
if ( $wpcom_api_key )
$akismet_api_host = $wpcom_api_key . '.rest.akismet.com';
else
$akismet_api_host = get_option('wordpress_api_key') . '.rest.akismet.com';
$akismet_api_port = 80;
add_action('admin_menu', 'akismet_config_page');
}
add_action('init', 'akismet_init');
if ( !function_exists('wp_nonce_field') ) {
function akismet_nonce_field($action = -1) { return; }
$akismet_nonce = -1;
} else {
function akismet_nonce_field($action = -1) { return wp_nonce_field($action); }
$akismet_nonce = 'akismet-update-key';
}
if ( !function_exists('number_format_i18n') ) {
function number_format_i18n( $number, $decimals = null ) { return number_format( $number, $decimals ); }
}
function akismet_config_page() {
if ( function_exists('add_submenu_page') )
add_submenu_page('plugins.php', __('Akismet Configuration'), __('Akismet Configuration'), 'manage_options', 'akismet-key-config', 'akismet_conf');
}
function akismet_conf() {
global $akismet_nonce, $wpcom_api_key;
if ( isset($_POST['submit']) ) {
if ( function_exists('current_user_can') && !current_user_can('manage_options') )
die(__('Cheatin’ uh?'));
check_admin_referer( $akismet_nonce );
$key = preg_replace( '/[^a-h0-9]/i', '', $_POST['key'] );
if ( empty($key) ) {
$key_status = 'empty';
$ms[] = 'new_key_empty';
delete_option('wordpress_api_key');
} else {
$key_status = akismet_verify_key( $key );
}
if ( $key_status == 'valid' ) {
update_option('wordpress_api_key', $key);
$ms[] = 'new_key_valid';
} else if ( $key_status == 'invalid' ) {
$ms[] = 'new_key_invalid';
} else if ( $key_status == 'failed' ) {
$ms[] = 'new_key_failed';
}
if ( isset( $_POST['akismet_discard_month'] ) )
update_option( 'akismet_discard_month', 'true' );
else
update_option( 'akismet_discard_month', 'false' );
}
if ( $key_status != 'valid' ) {
$key = get_option('wordpress_api_key');
if ( empty( $key ) ) {
if ( $key_status != 'failed' ) {
if ( akismet_verify_key( '1234567890ab' ) == 'failed' )
$ms[] = 'no_connection';
else
$ms[] = 'key_empty';
}
$key_status = 'empty';
} else {
$key_status = akismet_verify_key( $key );
}
if ( $key_status == 'valid' ) {
$ms[] = 'key_valid';
} else if ( $key_status == 'invalid' ) {
delete_option('wordpress_api_key');
$ms[] = 'key_empty';
} else if ( !empty($key) && $key_status == 'failed' ) {
$ms[] = 'key_failed';
}
}
$messages = array(
'new_key_empty' => array('color' => 'aa0', 'text' => __('Your key has been cleared.')),
'new_key_valid' => array('color' => '2d2', 'text' => __('Your key has been verified. Happy blogging!')),
'new_key_invalid' => array('color' => 'd22', 'text' => __('The key you entered is invalid. Please double-check it.')),
'new_key_failed' => array('color' => 'd22', 'text' => __('The key you entered could not be verified because a connection to akismet.com could not be established. Please check your server configuration.')),
'no_connection' => array('color' => 'd22', 'text' => __('There was a problem connecting to the Akismet server. Please check your server configuration.')),
'key_empty' => array('color' => 'aa0', 'text' => sprintf(__('Please enter an API key. (
Get your key.)'), 'http://wordpress.com/profile/')),
'key_valid' => array('color' => '2d2', 'text' => __('This key is valid.')),
'key_failed' => array('color' => 'aa0', 'text' => __('The key below was previously validated but a connection to akismet.com can not be established at this time. Please check your server configuration.')));
?>
<?php printf(__('For many people, Akismet will greatly reduce or even completely eliminate the comment and trackback spam you get on your site. If one does happen to get through, simply mark it as "spam" on the moderation screen and Akismet will learn from the mistakes. If you don\'t have a WordPress.com account yet, you can get one at WordPress.com.'), 'http://akismet.com/', 'http://wordpress.com/api-keys/'); ?>
<p style="padding: .5em; background-color: #; color: #fff; font-weight: bold;">
<input id="key" name="key" type="text" size="15" maxlength="12" value="" style="font-family: 'Courier New', Courier, mono; font-size: 1.5em;" /> (<?php _e('What is this?'); ?>)
<input name="akismet_discard_month" id="akismet_discard_month" value="true" type="checkbox" />
<input type="submit" name="submit" value="" />
<?php
}
function akismet_verify_key( $key ) {
global $akismet_api_host, $akismet_api_port, $wpcom_api_key;
$blog = urlencode( get_option('home') );
if ( $wpcom_api_key )
$key = $wpcom_api_key;
$response = akismet_http_post("key=$key&blog=$blog", 'rest.akismet.com', '/1.1/verify-key', $akismet_api_port);
if ( !is_array($response) || !isset($response[1]) || $response[1] != 'valid' && $response[1] != 'invalid' )
return 'failed';
return $response[1];
}
if ( !get_option('wordpress_api_key') && !$wpcom_api_key && !isset($_POST['submit']) ) {
function akismet_warning() {
echo "
";
}
add_action('admin_notices', 'akismet_warning');
return;
}
// Returns array with headers in $response[0] and body in $response[1]
function akismet_http_post($request, $host, $path, $port = 80) {
global $wp_version;
$http_request = "POST $path HTTP/1.0\r\n";
$http_request .= "Host: $host\r\n";
$http_request .= "Content-Type: application/x-www-form-urlencoded; charset=" . get_option('blog_charset') . "\r\n";
$http_request .= "Content-Length: " . strlen($request) . "\r\n";
$http_request .= "User-Agent: WordPress/$wp_version | Akismet/2.0\r\n";
$http_request .= "\r\n";
$http_request .= $request;
$response = '';
if( false != ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) {
fwrite($fs, $http_request);
while ( !feof($fs) )
$response .= fgets($fs, 1160); // One TCP-IP packet
fclose($fs);
$response = explode("\r\n\r\n", $response, 2);
}
return $response;
}
function akismet_auto_check_comment( $comment ) {
global $akismet_api_host, $akismet_api_port;
$comment['user_ip'] = preg_replace( '/[^0-9., ]/', '', $_SERVER['REMOTE_ADDR'] );
$comment['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
$comment['referrer'] = $_SERVER['HTTP_REFERER'];
$comment['blog'] = get_option('home');
$ignore = array( 'HTTP_COOKIE' );
foreach ( $_SERVER as $key => $value )
if ( !in_array( $key, $ignore ) )
$comment["$key"] = $value;
$query_string = '';
foreach ( $comment as $key => $data )
$query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
$response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
if ( 'true' == $response[1] ) {
add_filter('pre_comment_approved', create_function('$a', 'return \'spam\';'));
update_option( 'akismet_spam_count', get_option('akismet_spam_count') + 1 );
do_action( 'akismet_spam_caught' );
$post = get_post( $comment['comment_post_ID'] );
$last_updated = strtotime( $post->post_modified_gmt );
$diff = time() - $last_updated;
$diff = $diff / 86400;
if ( $post->post_type == 'post' && $diff > 30 && get_option( 'akismet_discard_month' ) == 'true' )
die;
}
akismet_delete_old();
return $comment;
}
function akismet_delete_old() {
global $wpdb;
$now_gmt = current_time('mysql', 1);
$wpdb->query("DELETE FROM $wpdb->comments WHERE DATE_SUB('$now_gmt', INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam'");
$n = mt_rand(1, 5000);
if ( $n == 11 ) // lucky number
$wpdb->query("OPTIMIZE TABLE $wpdb->comments");
}
function akismet_submit_nonspam_comment ( $comment_id ) {
global $wpdb, $akismet_api_host, $akismet_api_port;
$comment_id = (int) $comment_id;
$comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'");
if ( !$comment ) // it was deleted
return;
$comment->blog = get_option('home');
$query_string = '';
foreach ( $comment as $key => $data )
$query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
$response = akismet_http_post($query_string, $akismet_api_host, "/1.1/submit-ham", $akismet_api_port);
}
function akismet_submit_spam_comment ( $comment_id ) {
global $wpdb, $akismet_api_host, $akismet_api_port;
$comment_id = (int) $comment_id;
$comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'");
if ( !$comment ) // it was deleted
return;
if ( 'spam' != $comment->comment_approved )
return;
$comment->blog = get_option('home');
$query_string = '';
foreach ( $comment as $key => $data )
$query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
$response = akismet_http_post($query_string, $akismet_api_host, "/1.1/submit-spam", $akismet_api_port);
}
add_action('wp_set_comment_status', 'akismet_submit_spam_comment');
add_action('edit_comment', 'akismet_submit_spam_comment');
add_action('preprocess_comment', 'akismet_auto_check_comment', 1);
// Total spam in queue
// get_option( 'akismet_spam_count' ) is the total caught ever
function akismet_spam_count( $type = false ) {
global $wpdb;
if ( !$type ) { // total
$count = wp_cache_get( 'akismet_spam_count', 'widget' );
if ( false === $count ) {
if ( function_exists('wp_count_comments') ) {
$count = wp_count_comments();
$count = $count->spam;
} else {
$count = (int) $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = 'spam'");
}
wp_cache_set( 'akismet_spam_count', $count, 'widget', 3600 );
}
return $count;
} elseif ( 'comments' == $type || 'comment' == $type ) { // comments
$type = '';
} else { // pingback, trackback, ...
$type = $wpdb->escape( $type );
}
return (int) $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = 'spam' AND comment_type='$type'");
}
function akismet_spam_comments( $type = false, $page = 1, $per_page = 50 ) {
global $wpdb;
$page = (int) $page;
if ( $page < 2 )
$page = 1;
$per_page = (int) $per_page;
if ( $per_page escape( $type );
return $wpdb->get_results( "SELECT * FROM $wpdb->comments WHERE comment_approved = 'spam' AND comment_type='$type' ORDER BY comment_date DESC LIMIT $start, $end");
}
// All
return $wpdb->get_results( "SELECT * FROM $wpdb->comments WHERE comment_approved = 'spam' ORDER BY comment_date DESC LIMIT $start, $end");
}
// Totals for each comment type
// returns array( type => count, ... )
function akismet_spam_totals() {
global $wpdb;
$totals = $wpdb->get_results( "SELECT comment_type, COUNT(*) AS cc FROM $wpdb->comments WHERE comment_approved = 'spam' GROUP BY comment_type" );
$return = array();
foreach ( $totals as $total )
$return[$total->comment_type ? $total->comment_type : 'comment'] = $total->cc;
return $return;
}
function akismet_manage_page() {
global $wpdb, $submenu;
$count = sprintf(__('Akismet Spam (%s)'), akismet_spam_count());
if ( isset( $submenu['edit-comments.php'] ) )
add_submenu_page('edit-comments.php', __('Akismet Spam'), $count, 'moderate_comments', 'akismet-admin', 'akismet_caught' );
elseif ( function_exists('add_management_page') )
add_management_page(__('Akismet Spam'), $count, 'moderate_comments', 'akismet-admin', 'akismet_caught');
}
function akismet_caught() {
global $wpdb, $comment, $akismet_caught, $akismet_nonce;
akismet_recheck_queue();
if (isset($_POST['submit']) && 'recover' == $_POST['action'] && ! empty($_POST['not_spam'])) {
check_admin_referer( $akismet_nonce );
if ( function_exists('current_user_can') && !current_user_can('moderate_comments') )
die(__('You do not have sufficient permission to moderate comments.'));
$i = 0;
foreach ($_POST['not_spam'] as $comment):
$comment = (int) $comment;
if ( function_exists('wp_set_comment_status') )
wp_set_comment_status($comment, 'approve');
else
$wpdb->query("UPDATE $wpdb->comments SET comment_approved = '1' WHERE comment_ID = '$comment'");
akismet_submit_nonspam_comment($comment);
++$i;
endforeach;
$to = add_query_arg( 'recovered', $i, $_SERVER['HTTP_REFERER'] );
wp_redirect( $to );
exit;
}
if ('delete' == $_POST['action']) {
check_admin_referer( $akismet_nonce );
if ( function_exists('current_user_can') && !current_user_can('moderate_comments') )
die(__('You do not have sufficient permission to moderate comments.'));
$delete_time = $wpdb->escape( $_POST['display_time'] );
$nuked = $wpdb->query( "DELETE FROM $wpdb->comments WHERE comment_approved = 'spam' AND '$delete_time' > comment_date_gmt" );
wp_cache_delete( 'akismet_spam_count', 'widget' );
$to = add_query_arg( 'deleted', 'all', $_SERVER['HTTP_REFERER'] );
wp_redirect( $to );
exit;
}
if ( isset( $_GET['recovered'] ) ) {
$i = (int) $_GET['recovered'];
echo '
' . sprintf(__('%1$s comments recovered.'), $i) . "
";
}
if (isset( $_GET['deleted'] ) )
echo '
' . __('All spam deleted.') . '
';
if ( isset( $GLOBALS['submenu']['edit-comments.php'] ) )
$link = 'edit-comments.php';
else
$link = 'edit.php';
?>
.akismet-tabs {
list-style: none;
margin: 0;
padding: 0;
clear: both;
border-bottom: 1px solid #ccc;
height: 31px;
margin-bottom: 20px;
background: #ddd;
border-top: 1px solid #bdbdbd;
}
.akismet-tabs li {
float: left;
margin: 5px 0 0 20px;
}
.akismet-tabs a {
display: block;
padding: 4px .5em 3px;
border-bottom: none;
color: #036;
}
.akismet-tabs .active a {
background: #fff;
border: 1px solid #ccc;
border-bottom: none;
color: #000;
font-weight: bold;
padding-bottom: 4px;
}
#akismetsearch {
float: right;
margin-top: -.5em;
}
#akismetsearch p {
margin: 0;
padding: 0;
}
<?php printf(__('Akismet has caught %1$s spam for you since you first installed it.'), number_format_i18n($count) ); ?>
<?php
}
$spam_count = akismet_spam_count();
if ( 0 == $spam_count ) {
echo '
'.__('You have no spam currently in the queue. Must be your lucky day. :)').'
';
echo '
';
} else {
echo '
'.__('You can delete all of the spam from your database with a single click. This operation cannot be undone, so you may wish to check to ensure that no legitimate comments got through first. Spam is automatically deleted after 15 days, so don’t sweat it.').'
';
?>
<form method="post" action="">
<input type="submit" class="button delete" name="Submit" value="" />
<input type="hidden" name="display_time" value="" />
<?php echo '
'.__('These are the latest comments identified as spam by Akismet. If you see any mistakes, simply mark the comment as "not spam" and Akismet will learn from the submission. If you wish to recover a comment from spam, simply select the comment, and click Not Spam. After 15 days we clean out the junk for you.').'
'; ?>
escape($_POST['s']);
$comments = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE
(comment_author LIKE '%$s%' OR
comment_author_email LIKE '%$s%' OR
comment_author_url LIKE ('%$s%') OR
comment_author_IP LIKE ('%$s%') OR
comment_content LIKE ('%$s%') ) AND
comment_approved = 'spam'
ORDER BY comment_date DESC");
} else {
if ( isset( $_GET['apage'] ) )
$page = (int) $_GET['apage'];
else
$page = 1;
if ( $page
<li >
$type_count ) {
if ( 'comment' == $type ) {
$type = 'comments';
$show = __('Comments');
} else {
$show = ucwords( $type );
}
$type_count = number_format_i18n( $type_count );
$extra = $current_type === $type ? ' class="active"' : '';
echo "- $show ($type_count)
";
}
do_action( 'akismet_tabs' ); // so plugins can add more tabs easily
?>
<form method="post" action="" id="akismetsearch">
<input type="text" name="s" value="" size="17" />
<input type="submit" class="button" name="submit" value="" />
50 ) {
$total_pages = ceil( $total / 50 );
$r = '';
if ( 1 < $page ) {
$args['apage'] = ( 1 == $page - 1 ) ? '' : $page - 1;
$r .= '
'. __('« Previous Page') .'' . "\n";
}
if ( ( $total_pages = ceil( $total / 50 ) ) > 1 ) {
for ( $page_num = 1; $page_num <= $total_pages; $page_num++ ) :
if ( $page == $page_num ) :
$r .= "
$page_num\n";
else :
$p = false;
if ( $page_num = $page - 3 && $page_num $total_pages - 3 ) :
$args['apage'] = ( 1 == $page_num ) ? '' : $page_num;
$r .= '
' . ( $page_num ) . "\n";
$in = true;
elseif ( $in == true ) :
$r .= "...\n";
$in = false;
endif;
endif;
endfor;
}
if ( ( $page ) * 50 < $total || -1 == $total ) {
$args['apage'] = $page + 1;
$r .= '
'. __('Next Page »') .'' . "\n";
}
echo "
$r
";
?>
<form style="clear: both;" method="post" action="">
50 ) {
$total_pages = ceil( $total / 50 );
$r = '';
if ( 1 < $page ) {
$args['apage'] = ( 1 == $page - 1 ) ? '' : $page - 1;
$r .= '
'. __('« Previous Page') .'' . "\n";
}
if ( ( $total_pages = ceil( $total / 50 ) ) > 1 ) {
for ( $page_num = 1; $page_num <= $total_pages; $page_num++ ) :
if ( $page == $page_num ) :
$r .= "
$page_num\n";
else :
$p = false;
if ( $page_num = $page - 3 && $page_num $total_pages - 3 ) :
$args['apage'] = ( 1 == $page_num ) ? '' : $page_num;
$r .= '
' . ( $page_num ) . "\n";
$in = true;
elseif ( $in == true ) :
$r .= "...\n";
$in = false;
endif;
endif;
endfor;
}
if ( ( $page ) * 50 < $total || -1 == $total ) {
$args['apage'] = $page + 1;
$r .= '
'. __('Next Page »') .'' . "\n";
}
echo "
$r
";
}
?>
<input type="submit" name="submit" value="" />
<form method="post" action="">
<input type="submit" name="Submit" class="button" value="" />
<input type="hidden" name="display_time" value="" />
<?php
}
}
add_action('admin_menu', 'akismet_manage_page');
// WP < 2.5
function akismet_stats() {
if ( !function_exists('did_action') || did_action( 'rightnow_end' ) ) // We already displayed this info in the "Right Now" section
return;
if ( !$count = get_option('akismet_spam_count') )
return;
$path = plugin_basename(__FILE__);
echo '
comment_author_email) { ?>| comment_author_url && 'http://' != $comment->comment_author_url) { ?> | | <a href="http://ws.arin.net/cgi-bin/whois.pl?queryinput=">
<label for="spam-comment_ID; ?>"> <input type="checkbox" id="spam-comment_ID; ?>" name="not_spam[]" value="comment_ID; ?>" /> — — [ comment_post_ID); $post_title = wp_specialchars( $post->post_title, 'double' ); $post_title = ('' == $post_title) ? "# $comment->comment_post_ID" : $post_title; ?> <a href="comment_post_ID); ?>" title=""> ]