<?php
-
/**
* Name: NSFW
* Description: Collapse posts with inappropriate content
* Version: 1.0
* Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
- *
+ *
*/
+use Friendica\Core\Addon;
+use Friendica\Core\L10n;
+use Friendica\Core\PConfig;
+
+function nsfw_install()
+{
+ Addon::registerHook('prepare_body_content_filter', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body_content_filter', 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_content_filter', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body_content_filter');
+ 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'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/nsfw/nsfw.css' . '" media="all" />' . "\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 .= '<span id="settings_nsfw_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_nsfw_expanded\'); openClose(\'settings_nsfw_inflated\');">';
+ $s .= '<h3>' . L10n::t('Content Filter (NSFW and more)') . '</h3>';
+ $s .= '</span>';
+ $s .= '<div id="settings_nsfw_expanded" class="settings-block" style="display: none;">';
+ $s .= '<span class="fakelink" onclick="openClose(\'settings_nsfw_expanded\'); openClose(\'settings_nsfw_inflated\');">';
+ $s .= '<h3>' . L10n::t('Content Filter (NSFW and more)') . '</h3>';
+ $s .= '</span>';
+
+ $s .= '<div id="nsfw-wrapper">';
+ $s .= '<p>' . L10n::t('This addon searches for specified words/text in posts and collapses them. It can be used to filter content tagged with for instance #NSFW that may be deemed inappropriate at certain times or places, such as being at work. It is also useful for hiding irrelevant or annoying content from direct view.') . '</p>';
+ $s .= '<label id="nsfw-enable-label" for="nsfw-enable">' . L10n::t('Enable Content filter') . ' </label>';
+ $s .= '<input id="nsfw-enable" type="checkbox" name="nsfw-enable" value="1"' . $enable_checked . ' />';
+ $s .= '<div class="clear"></div>';
+ $s .= '<label id="nsfw-label" for="nsfw-words">' . L10n::t('Comma separated list of keywords to hide') . ' </label>';
+ $s .= '<textarea id="nsfw-words" type="text" name="nsfw-words">' . $words . '</textarea>';
+ $s .= '</div><div class="clear"></div>';
-function nsfw_install() {
- register_hook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body');
+ $s .= '<div class="settings-submit-wrapper" ><input type="submit" id="nsfw-submit" name="nsfw-submit" class="settings-submit" value="' . L10n::t('Save Settings') . '" /></div>';
+ $s .= '<div class="nsfw-desc">' . L10n::t('Use /expression/ to provide regular expressions') . '</div></div>';
+ return;
}
+function nsfw_addon_settings_post(&$a, &$b)
+{
+ if (!local_user()) {
+ return;
+ }
-function nsfw_uninstall() {
- unregister_hook('prepare_body', 'addon/nsfw/nsfw.php', 'nsfw_prepare_body');
+ if ($_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,&$b) {
- if(stristr($b,'nsfw')) {
- $rnd = random_string(8);
- $b = '<div id="nsfw-wrap-' . $rnd . '" class="fakelink" onclick=openClose(\'nsfw-' . $rnd . '\'); >' . t('NSFW - Click to open/close') . '</div><div id="nsfw-' . $rnd . '" style="display: none; " >' . $b . '</div>';
+function nsfw_prepare_body_content_filter(\Friendica\App $a, &$hook_data)
+{
+ $words = null;
+ if (PConfig::get(local_user(), 'nsfw', 'disable')) {
+ return;
}
-}
\ No newline at end of file
+
+ if (local_user()) {
+ $words = PConfig::get(local_user(), 'nsfw', 'words');
+ }
+
+ if ($words) {
+ $word_list = explode(',', $words);
+ } else {
+ $word_list = ['nsfw'];
+ }
+
+ $found = false;
+ if (count($word_list)) {
+ $body = $hook_data['item']['title'] . "\n" . nsfw_extract_photos($hook_data['item']['body']);
+
+ foreach ($word_list as $word) {
+ $word = trim($word);
+ if (!strlen($word)) {
+ continue;
+ }
+
+ $tag_search = false;
+ switch ($word[0]) {
+ case '/'; // Regular expression
+ $found = preg_match($word, $body);
+ break;
+ case '#': // Hashtag-only search
+ $tag_search = true;
+ $found = nsfw_find_word_in_item_tags($hook_data['item']['hashtags'], substr($word, 1));
+ break;
+ default:
+ $found = stripos($body, $word) !== false || nsfw_find_word_in_item_tags($hook_data['item']['tags'], $word);
+ break;
+ }
+
+ if ($found) {
+ break;
+ }
+ }
+ }
+
+ if ($found) {
+ if ($tag_search) {
+ $hook_data['filter_reasons'][] = L10n::t('Filtered tag: %s', $word);
+ } else {
+ $hook_data['filter_reasons'][] = L10n::t('Filtered word: %s', $word);
+ }
+ }
+}
+
+function nsfw_find_word_in_item_tags($item_tags, $word)
+{
+ if (is_array($item_tags)) {
+ foreach ($item_tags as $tag) {
+ if (stripos($tag, '>' . $word . '<') !== false) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+}