* */ use Friendica\Core\Addon; use Friendica\Core\L10n; use Friendica\Core\PConfig; function nsfw_install() { Addon::registerHook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body', 10); Addon::registerHook('addon_settings', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings'); Addon::registerHook('addon_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('addon_settings', 'addon/nsfw/nsfw.php', 'nsfw_addon_settings'); Addon::unregisterHook('addon_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 .= '

' . L10n::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', $disable); info(L10n::t('NSFW Settings saved.') . EOL); } } function nsfw_prepare_body(&$a, &$b) { // Don't do the check when there is a content warning if (!empty($b['item']['content-warning'])) { return; } $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'] = ''; } }