{"id":232505,"date":"2023-01-20T14:35:00","date_gmt":"2023-01-20T11:35:00","guid":{"rendered":"https:\/\/wordpress.mediadoma.com\/?p=232505"},"modified":"2023-01-29T10:16:30","modified_gmt":"2023-01-29T07:16:30","slug":"a-melhor-deteccao-de-codigo-php-anti-spam-eficiente-para-wordpress","status":"publish","type":"post","link":"https:\/\/wordpress.mediadoma.com\/pt-pt\/a-melhor-deteccao-de-codigo-php-anti-spam-eficiente-para-wordpress\/","title":{"rendered":"A melhor detec\u00e7\u00e3o de c\u00f3digo PHP anti-spam eficiente para WordPress"},"content":{"rendered":"

Um blog wordpress pode receber mais de 100 coment\u00e1rios de spam (produzidos por rob\u00f4s de spam) por dia, o que \u00e9 irritante.<\/p>\n

\"A<\/a><\/p>\n

wordpress-spam<\/p>\n

Geralmente, eles podem ser capturados por plugins como o Akismet, no entanto, esses dados ainda s\u00e3o preservados no banco de dados antes de serem removidos<\/a> manualmente ou ap\u00f3s a data de expira\u00e7\u00e3o<\/a>.<\/p>\n

A LEONA<\/a> fornece uma solu\u00e7\u00e3o inteligente para evitar que esses coment\u00e1rios de spam cheguem ao banco de dados. Baseia-se em colocar um campo oculto no formul\u00e1rio e definir um valor quando o usu\u00e1rio pressiona uma tecla (onkeyup). Portanto, se os valores n\u00e3o corresponderem, achamos que n\u00e3o foi enviado por humanos.<\/p>\n

O wordpress fornece o filtro preprocess_comment<\/strong>, para que voc\u00ea possa verificar os coment\u00e1rios e sair da p\u00e1gina usando wp_die()<\/strong> anteriormente.<\/p>\n

WP Official API diz (https:\/\/codex.wordpress.org\/Plugin_API\/Filter_Reference\/preprocess_comment<\/a> ), o $commentdata cont\u00e9m as seguintes informa\u00e7\u00f5es:<\/p>\n

'comment_post_ID' \u00a0 \u00a0 \u00a0- The post to which the comment will apply\n\u00a0 \u00a0'comment_author' \u00a0 \u00a0 \u00a0 - (may be empty)\n\u00a0 \u00a0'comment_author_email' - (may be empty)\n\u00a0 \u00a0'comment_author_url' \u00a0 - (may be empty)\n\u00a0 \u00a0'comment_content' \u00a0 \u00a0 \u00a0- The text of the proposed comment\n\u00a0 \u00a0'comment_type' \u00a0 \u00a0 \u00a0 \u00a0 - 'pingback', 'trackback', or empty for regular comments\n\u00a0 \u00a0'user_ID' \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0- (empty if not logged in)<\/code><\/pre>\n
Podemos ent\u00e3o usar este plugin para permitir pingback\/trackback (o que acho \u00fatil) e nos livrar dos coment\u00e1rios de spam de forma eficaz.<\/p>\n
$leonax_magic_lower = 328;\n$leonax_magic_upper = 3450709;\n\u00a0\nfunction leonax_anti_spam_form($fields){\n\u00a0 \u00a0 global $leonax_magic_lower, $leonax_magic_upper;\n\u00a0 \u00a0 $leonax_magic = mt_rand($leonax_magic_lower, $leonax_magic_upper);\n\u00a0 \u00a0 $fields['leonax_magic'] = <<<EOT\n\u00a0 \u00a0 \u00a0 \u00a0 <input type=\"hidden\" id=\"leonax-magic\" name=\"leonax-magic\" value=\"0\">\n\u00a0 \u00a0 \u00a0 \u00a0 <script type=\"text\/javascript\">\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 jQuery(function() {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 jQuery(\"#comment\").on(\"keyup\", function() {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 jQuery(\"#leonax-magic\").val(\"$leonax_magic\");\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 });\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 })\n\u00a0 \u00a0 \u00a0 \u00a0 <\/script>\nEOT;\n\u00a0 \u00a0 return $fields;\n}\n\u00a0\nadd_filter('comment_form_default_fields', 'leonax_anti_spam_form');\n\u00a0\nfunction leonax_anit_spam_caught() {\n\u00a0 wp_die('<strong>ERROR<\/strong>: Looks like you are a spam bot. Please stop doing this.');\n}\n\u00a0\nfunction leonax_anti_spam_check( $commentdata) {\n\u00a0 $comment_type = '';\n\u00a0 if (isset($commentdata['comment_type'])) {\n\u00a0 \u00a0 $comment_type = trim($commentdata['comment_type']);\n\u00a0 } \u00a0 \n\u00a0 \n\u00a0if (($comment_type == 'pingback') || ($comment_type == 'trackback')) {\n\u00a0 \u00a0 return $commentdata;\n\u00a0 }\n\u00a0 $content = '';\n\u00a0 if (isset($commentdata['comment_content'])) {\n\u00a0 \u00a0 $content = trim($commentdata['comment_content']);\n\u00a0 } \u00a0 \n\u00a0 if (!strlen($content)) {\n\u00a0 \u00a0 leonax_anit_spam_caught();\n\u00a0 }\n\u00a0 \n\u00a0 if (preg_match(\"\/[a-e0-9]{25,}\/i\", $content)) { \/\/ To capture the strange IDs\n\u00a0 \u00a0 leonax_anit_spam_caught(); \u00a0\n\u00a0 }\n\u00a0\n\u00a0 global $leonax_magic_lower, $leonax_magic_upper; \u00a0\n\u00a0 \n\u00a0 if (isset($commentdata['user_ID']) && $commentdata['user_ID']) { \/\/ Login-users are not bad\n\u00a0 \u00a0 return $commentdata;\n\u00a0 }\n\u00a0 \n\u00a0 if (!isset($_POST['leonax-magic'])) {\n\u00a0 \u00a0 leonax_anit_spam_caught();\n\u00a0 }\n\u00a0 $magic = intval($_POST['leonax-magic']);\n\u00a0 if ($magic < $leonax_magic_lower || $magic > $leonax_magic_upper) {\n\u00a0 \u00a0 leonax_anit_spam_caught();\n\u00a0 }\n\u00a0 return $commentdata;\n}\n\u00a0\nadd_filter( 'preprocess_comment', 'leonax_anti_spam_check' );<\/code><\/pre>\n
Se testarmos a fun\u00e7\u00e3o\/filtro inserindo os IDs estranhos de prop\u00f3sito, obteremos o seguinte (e o coment\u00e1rio n\u00e3o ser\u00e1 inserido na \u00e1rea de espera).<\/p>\n
Nota: Coloque o c\u00f3digo acima no final do template functions.php<\/strong> (ou tema filho).<\/p>\n
\"A<\/a><\/p>\n
wordpress-spam-detect<\/p>\n
Funciona como uma m\u00e1gica!<\/p>\n
Fonte de grava\u00e7\u00e3o:  helloacm.com<\/a><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"
A melhor detec\u00e7\u00e3o de c\u00f3digo PHP anti-spam eficiente para WordPress<\/p>\n","protected":false},"author":1,"featured_media":223984,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"categories":[722,806,1033,846,867],"tags":[1170],"class_list":["post-232505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-desenvolvedor","category-php-8","category-seguranca","category-tutoriais","category-wordpress-8","tag-affiai-pt-pt"],"_links":{"self":[{"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/posts\/232505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/comments?post=232505"}],"version-history":[{"count":0,"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/posts\/232505\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/media\/223984"}],"wp:attachment":[{"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=232505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/categories?post=232505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.mediadoma.com\/pt-pt\/wp-json\/wp\/v2\/tags?post=232505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}