* */ use Friendica\Core\Addon; use Friendica\Core\PConfig; function nsfw_install() { Addon::registerHook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body', 10); Addon::registerHook('plugin_settings', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings'); Addon::registerHook('plugin_settings_post', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings_post'); } function nsfw_uninstall() { Addon::unregisterHook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body'); Addon::unregisterHook('plugin_settings', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings'); Addon::unregisterHook('plugin_settings_post', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings_post'); } // This function isn't perfect and isn't trying to preserve the html structure - it's just a // quick and dirty filter to pull out embedded photo blobs because 'nsfw' seems to come up // inside them quite often. We don't need anything fancy, just pull out the data blob so we can // check against the rest of the body. function nsfw_extract_photos($body) { $new_body = ''; $img_start = strpos($body,'src="data:'); $img_end = (($img_start !== false) ? strpos(substr($body,$img_start),'>') : false); $cnt = 0; while($img_end !== false) { $img_end += $img_start; $new_body = $new_body . substr($body,0,$img_start); $cnt ++; $body = substr($body,0,$img_end); $img_start = strpos($body,'src="data:'); $img_end = (($img_start !== false) ? strpos(substr($body,$img_start),'>') : false); } if(! $cnt) return $body; return $new_body; } function nsfw_addon_settings(&$a,&$s) { if(! local_user()) return; /* Add our stylesheet to the page so we can make our settings look nice */ $a->page['htmlhead'] .= '' . "\r\n"; $enable_checked = (intval(PConfig::get(local_user(),'nsfw','disable')) ? '' : ' checked="checked" '); $words = PConfig::get(local_user(),'nsfw','words'); if(! $words) $words = 'nsfw,'; $s .= ''; $s .= '

' . t('Not Safe For Work (General Purpose Content Filter)') . '

'; $s .= ''; $s .= ''; return; } function nsfw_addon_settings_post(&$a,&$b) { if(! local_user()) return; if($_POST['nsfw-submit']) { PConfig::set(local_user(),'nsfw','words',trim($_POST['nsfw-words'])); $enable = ((x($_POST,'nsfw-enable')) ? intval($_POST['nsfw-enable']) : 0); $disable = 1-$enable; PConfig::set(local_user(),'nsfw','disable', $disable); info( t('NSFW Settings saved.') . EOL); } } function nsfw_prepare_body(&$a,&$b) { $words = null; if(PConfig::get(local_user(),'nsfw','disable')) return; if(local_user()) { $words = PConfig::get(local_user(),'nsfw','words'); } if($words) { $arr = explode(',',$words); } else { $arr = ['nsfw']; } $found = false; if(count($arr)) { $body = $b['item']['title'] . "\n" . nsfw_extract_photos($b['html']); foreach($arr as $word) { $word = trim($word); if(! strlen($word)) { continue; } if(strpos($word,'/') === 0) { if(preg_match($word,$body)) { $found = true; break; } } else { if(stristr($body,$word)) { $found = true; break; } if(is_array($b['item']['tags']) && count($b['item']['tags'])) { foreach($b['item']['tags'] as $t) { if(stristr($t, '>' . $word . '<' )) { $found = true; break; } } } } } } if($found) { $rnd = random_string(8); $b['html'] = ''; } }