91 lines
2.2 KiB
PHP
91 lines
2.2 KiB
PHP
<?php
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/*
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* Name: Comment Word Ban
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* Author: Shish <webmaster@shishnet.org>
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* License: GPLv2
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* Description: For stopping spam and other comment abuse
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* Documentation:
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* Allows an administrator to ban certain words
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* from comments. This can be a very simple but effective way
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* of stopping spam; just add "viagra", "porn", etc to the
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* banned words list.
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* <p>Regex bans are also supported, allowing more complicated
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* bans like <code>/http:.*\.cn\//</code> to block links to
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* chinese websites, or <code>/.*?http.*?http.*?http.*?http.*?/</code>
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* to block comments with four (or more) links in.
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* <p>Note that for non-regex matches, only whole words are
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* matched, eg banning "sex" would block the comment "get free
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* sex call this number", but allow "This is a photo of Bob
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* from Essex"
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*/
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class BanWords extends SimpleExtension {
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public function onInitExt(InitExtEvent $event) {
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global $config;
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$config->set_default_string('banned_words', "
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a href=
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anal
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blowjob
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/buy-.*-online/
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casino
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cialis
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doors.txt
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fuck
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hot video
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kaboodle.com
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lesbian
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nexium
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penis
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/pokerst.*/
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pornhub
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porno
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purchase
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sex
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sex tape
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spinnenwerk.de
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thx for all
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TRAMADOL
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ultram
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very nice site
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viagra
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xanax
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");
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}
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public function onCommentPosting(CommentPostingEvent $event) {
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global $config;
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$banned = $config->get_string("banned_words");
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$comment = strtolower($event->comment);
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foreach(explode("\n", $banned) as $word) {
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$word = trim(strtolower($word));
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if(strlen($word) == 0) {
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// line is blank
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continue;
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}
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else if($word[0] == '/') {
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// lines that start with slash are regex
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if(preg_match($word, $comment)) {
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throw new CommentPostingException("Comment contains banned terms");
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}
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}
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else {
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// other words are literal
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if(strpos($comment, $word) !== false) {
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throw new CommentPostingException("Comment contains banned terms");
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}
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}
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}
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}
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public function onSetupBuilding(SetupBuildingEvent $event) {
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$sb = new SetupBlock("Banned Phrases");
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$sb->add_label("One per line, lines that start with slashes are treated as regex<br/>");
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$sb->add_longtext_option("banned_words");
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$event->panel->add_block($sb);
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}
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public function get_priority() {return 30;}
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}
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?>
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