本文實(shí)例講述了Wordpress自動(dòng)將包含長(zhǎng)鏈接的評(píng)論標(biāo)記為垃圾評(píng)論的方法。分享給大家供大家參考。具體分析如下：
現(xiàn)在大量的機(jī)器可以直接對(duì)WordPress博客進(jìn)行評(píng)論并帶有大量的連接,這些帶鏈接評(píng)論我們定為垃圾評(píng)論了,這里就來(lái)給大家介紹幾個(gè)自動(dòng)將包含長(zhǎng)鏈接的評(píng)論標(biāo)記為垃圾評(píng)論的方法.
方法一:此方法依舊是來(lái)自 Willin Kan 大師(可惜他已經(jīng)退出WordPress圈),折騰很簡(jiǎn)單,直接將下面的代碼放到主題的functions.php文件的最后一個(gè) ?>前面即可,代碼如下:
復(fù)制代碼
代碼如下:// 垃圾評(píng)論攔截
class anti_spam {
function anti_spam() {
if ( !current_user_can('level_0') ) {
add_action('template_redirect', array($this, 'w_tb'), 1);
add_action('init', array($this, 'gate'), 1);
add_action('preprocess_comment', array($this, 'sink'), 1);
}
}
function w_tb() {
if ( is_singular() ) {
ob_start(create_function('$input','return preg_replace("#textarea(.*?)name=(["'])comment(["'])(.+)/textarea>#",
"textarea$1name=$2w$3$4/textarea><textarea name="comment" cols="100%" rows="4" style="display:none"></textarea>",$input);') );
}
}
function gate() {
if ( !emptyempty($_POST['w']) && emptyempty($_POST['comment']) ) {
$_POST['comment'] = $_POST['w'];
} else {
$request = $_SERVER['REQUEST_URI'];
$referer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '隱瞞';
$IP = isset($_SERVER["HTTP_X_FORWARDED_FOR"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] . ' (透過(guò)代理)' : $_SERVER["REMOTE_ADDR"];
$way = isset($_POST['w']) ? '手動(dòng)操作' : '未經(jīng)評(píng)論表格';
$spamcom = isset($_POST['comment']) ? $_POST['comment'] : null;
$_POST['spam_confirmed'] = "請(qǐng)求: ". $request. "n來(lái)路: ". $referer. "nIP: ". $IP. "n方式: ". $way. "n?熱? ". $spamcom. "n -- 記錄成功 --";
}
}
function sink( $comment ) {
if ( !emptyempty($_POST['spam_confirmed']) ) {
if ( in_array( $comment['comment_type'], array('pingback', 'trackback') ) ) return $comment;
//方法一: 直接擋掉, ? die(); 前面兩斜線?h除即可.
die();
//方法二: 標(biāo)記為 spam, 留在資料庫(kù)檢查是否誤判.
//add_filter('pre_comment_approved', create_function('', 'return "spam";'));
//$comment['comment_content'] = "[ 小墻判斷這是 Spam! ]n". $_POST['spam_confirmed'];
}
return $comment;
}
}
$anti_spam = new anti_spam();
class anti_spam {
function anti_spam() {
if ( !current_user_can('level_0') ) {
add_action('template_redirect', array($this, 'w_tb'), 1);
add_action('init', array($this, 'gate'), 1);
add_action('preprocess_comment', array($this, 'sink'), 1);
}
}
function w_tb() {
if ( is_singular() ) {
ob_start(create_function('$input','return preg_replace("#textarea(.*?)name=(["'])comment(["'])(.+)/textarea>#",
"textarea$1name=$2w$3$4/textarea><textarea name="comment" cols="100%" rows="4" style="display:none"></textarea>",$input);') );
}
}
function gate() {
if ( !emptyempty($_POST['w']) && emptyempty($_POST['comment']) ) {
$_POST['comment'] = $_POST['w'];
} else {
$request = $_SERVER['REQUEST_URI'];
$referer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '隱瞞';
$IP = isset($_SERVER["HTTP_X_FORWARDED_FOR"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] . ' (透過(guò)代理)' : $_SERVER["REMOTE_ADDR"];
$way = isset($_POST['w']) ? '手動(dòng)操作' : '未經(jīng)評(píng)論表格';
$spamcom = isset($_POST['comment']) ? $_POST['comment'] : null;
$_POST['spam_confirmed'] = "請(qǐng)求: ". $request. "n來(lái)路: ". $referer. "nIP: ". $IP. "n方式: ". $way. "n?熱? ". $spamcom. "n -- 記錄成功 --";
}
}
function sink( $comment ) {
if ( !emptyempty($_POST['spam_confirmed']) ) {
if ( in_array( $comment['comment_type'], array('pingback', 'trackback') ) ) return $comment;
//方法一: 直接擋掉, ? die(); 前面兩斜線?h除即可.
die();
//方法二: 標(biāo)記為 spam, 留在資料庫(kù)檢查是否誤判.
//add_filter('pre_comment_approved', create_function('', 'return "spam";'));
//$comment['comment_content'] = "[ 小墻判斷這是 Spam! ]n". $_POST['spam_confirmed'];
}
return $comment;
}
}
$anti_spam = new anti_spam();
這個(gè)方法可以阻止98%以上的垃圾評(píng)論,當(dāng)然了,倡萌還建議你審核第一次提交的評(píng)論人的評(píng)論,設(shè)置審核后才顯示,如果遇到垃圾評(píng)論,將其email、IP、網(wǎng)址等添加到黑名單即可,下面是倡萌目前的評(píng)論設(shè)置,你可以在WP后臺(tái)-設(shè)置-討論下設(shè)置.
方法二:自動(dòng)拒絕包含特定關(guān)鍵詞的垃圾評(píng)論,將下面的代碼添加到主題的functions.php文件,自己根據(jù)需要,修改 $ bad_comment_content 數(shù)組的內(nèi)容,任何包含在$ bad_comment_content 數(shù)組內(nèi)的字符,將會(huì)被自動(dòng)拒絕留言,代碼如下:
復(fù)制代碼
代碼如下:function in_comment_post_like($string, $array) {
foreach($array as $ref) { if(strstr($string, $ref)) { return true; } }
return false;
}
function drop_bad_comments() {
if (!emptyempty($_POST['comment'])) {
$post_comment_content = $_POST['comment'];
$lower_case_comment = strtolower($_POST['comment']);
$bad_comment_content = array(
'viagra',
'hydrocodone',
'hair loss',
'xanax',
'tramadol',
'russian girls',
'russian brides',
'lorazepam',
'adderall',
'dexadrine',
'no prescription',
'oxycontin',
'without a prescription',
'sex pics',
'family incest',
'online casinos',
'online dating',
'cialis',
'best forex',
'amoxicillin'
);
if (in_comment_post_like($lower_case_comment, $bad_comment_content)) {
$comment_box_text = wordwrap(trim($post_comment_content), 80, "n ", true);
$txtdrop = fopen('/var/log/httpd/wp_post-logger/nullamatix.com-text-area_dropped.txt', 'a');
fwrite($txtdrop, " --------------n [COMMENT] = " . $post_comment_content . "n --------------n");
fwrite($txtdrop, " [SOURCE_IP] = " . $_SERVER['REMOTE_ADDR'] . " @ " . date("F j, Y, g:i a") . "n");
fwrite($txtdrop, " [USERAGENT] = " . $_SERVER['HTTP_USER_AGENT'] . "n");
fwrite($txtdrop, " [REFERER ] = " . $_SERVER['HTTP_REFERER'] . "n");
fwrite($txtdrop, " [FILE_NAME] = " . $_SERVER['SCRIPT_NAME'] . " - [REQ_URI] = " . $_SERVER['REQUEST_URI'] . "n");
fwrite($txtdrop, '--------------**********------------------'."n");
header("HTTP/1.1 406 Not Acceptable");
header("Status: 406 Not Acceptable");
header("Connection: Close");
wp_die( __('bang bang.') );
}
}
}
add_action('init', 'drop_bad_comments');
foreach($array as $ref) { if(strstr($string, $ref)) { return true; } }
return false;
}
function drop_bad_comments() {
if (!emptyempty($_POST['comment'])) {
$post_comment_content = $_POST['comment'];
$lower_case_comment = strtolower($_POST['comment']);
$bad_comment_content = array(
'viagra',
'hydrocodone',
'hair loss',
'xanax',
'tramadol',
'russian girls',
'russian brides',
'lorazepam',
'adderall',
'dexadrine',
'no prescription',
'oxycontin',
'without a prescription',
'sex pics',
'family incest',
'online casinos',
'online dating',
'cialis',
'best forex',
'amoxicillin'
);
if (in_comment_post_like($lower_case_comment, $bad_comment_content)) {
$comment_box_text = wordwrap(trim($post_comment_content), 80, "n ", true);
$txtdrop = fopen('/var/log/httpd/wp_post-logger/nullamatix.com-text-area_dropped.txt', 'a');
fwrite($txtdrop, " --------------n [COMMENT] = " . $post_comment_content . "n --------------n");
fwrite($txtdrop, " [SOURCE_IP] = " . $_SERVER['REMOTE_ADDR'] . " @ " . date("F j, Y, g:i a") . "n");
fwrite($txtdrop, " [USERAGENT] = " . $_SERVER['HTTP_USER_AGENT'] . "n");
fwrite($txtdrop, " [REFERER ] = " . $_SERVER['HTTP_REFERER'] . "n");
fwrite($txtdrop, " [FILE_NAME] = " . $_SERVER['SCRIPT_NAME'] . " - [REQ_URI] = " . $_SERVER['REQUEST_URI'] . "n");
fwrite($txtdrop, '--------------**********------------------'."n");
header("HTTP/1.1 406 Not Acceptable");
header("Status: 406 Not Acceptable");
header("Connection: Close");
wp_die( __('bang bang.') );
}
}
}
add_action('init', 'drop_bad_comments');
今天再補(bǔ)充下,自動(dòng)將包含長(zhǎng)鏈接的評(píng)論標(biāo)記為垃圾評(píng)論,將下面的代碼添加到主題的 functions.php 文件即可:
復(fù)制代碼
代碼如下:function rkv_url_spamcheck( $approved , $commentdata ) {
return ( strlen( $commentdata['comment_author_url'] ) > 50 ) ? 'spam' : $approved;
}
add_filter( 'pre_comment_approved', 'rkv_url_spamcheck', 99, 2 );
return ( strlen( $commentdata['comment_author_url'] ) > 50 ) ? 'spam' : $approved;
}
add_filter( 'pre_comment_approved', 'rkv_url_spamcheck', 99, 2 );
注意看第二行的 50,根據(jù)自己的需要修改這個(gè)數(shù)值,如果你希望將所有帶有鏈接(不管是否是長(zhǎng)鏈接)的評(píng)論內(nèi)容都自動(dòng)標(biāo)記為垃圾評(píng)論,將 50 改為 1 即可.
希望本文所述對(duì)大家的WordPress建站有所幫助。
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