true); } function save() { $enable_share_anything = checkbox_to_sql_bool($_POST["enable_share_anything"]); $this->host->set($this, "enable_share_anything", $enable_share_anything); echo __("Data saved."); } function init($host) { $this->host = $host; if (version_compare(PHP_VERSION, '7.0.0', '<')) { user_error("af_readability requires PHP 7.0", E_USER_WARNING); return; } $host->add_hook($host::HOOK_ARTICLE_FILTER, $this); $host->add_hook($host::HOOK_PREFS_TAB, $this); $host->add_hook($host::HOOK_PREFS_EDIT_FEED, $this); $host->add_hook($host::HOOK_PREFS_SAVE_FEED, $this); $host->add_hook($host::HOOK_ARTICLE_BUTTON, $this); // Note: we have to install the hook even if disabled because init() is being run before plugin data has loaded // so we can't check for our storage-set options here $host->add_hook($host::HOOK_GET_FULL_TEXT, $this); $host->add_filter_action($this, "action_inline", __("Inline content")); $host->add_filter_action($this, "action_inline_append", __("Append content")); } function get_js() { return file_get_contents(__DIR__ . "/init.js"); } function hook_article_button($line) { return "description"; } function hook_prefs_tab($args) { if ($args != "prefFeeds") return; print "
extension ".__('Readability settings (af_readability)')."\">"; if (version_compare(PHP_VERSION, '7.0.0', '<')) { print_error("This plugin requires PHP 7.0."); } else { print "

" . __("Global settings") . "

"; print_notice("Enable for specific feeds in the feed editor."); print "
"; print ""; print_hidden("op", "pluginhandler"); print_hidden("method", "save"); print_hidden("plugin", "af_readability"); $enable_share_anything = $this->host->get($this, "enable_share_anything"); print "
"; print ""; print "
"; print_button("submit", __("Save"), "class='alt-primary'"); print "
"; /* cleanup */ $enabled_feeds = $this->filter_unknown_feeds( $this->get_stored_array("enabled_feeds")); $append_feeds = $this->filter_unknown_feeds( $this->get_stored_array("append_feeds")); $this->host->set($this, "enabled_feeds", $enabled_feeds); $this->host->set($this, "append_feeds", $append_feeds); if (count($enabled_feeds) > 0) { print "

" . __("Currently enabled for (click to edit):") . "

"; print ""; } } print "
"; } function hook_prefs_edit_feed($feed_id) { print "
".__("Readability")."
"; print "
"; $enabled_feeds = $this->get_stored_array("enabled_feeds"); $append_feeds = $this->get_stored_array("append_feeds"); $enable_checked = in_array($feed_id, $enabled_feeds) ? "checked" : ""; $append_checked = in_array($feed_id, $append_feeds) ? "checked" : ""; print "
"; print ""; print "
"; print ""; print "
"; } function hook_prefs_save_feed($feed_id) { $enabled_feeds = $this->get_stored_array("enabled_feeds"); $append_feeds = $this->get_stored_array("append_feeds"); $enable = checkbox_to_sql_bool($_POST["af_readability_enabled"] ?? ""); $append = checkbox_to_sql_bool($_POST["af_readability_append"] ?? ""); $enable_key = array_search($feed_id, $enabled_feeds); $append_key = array_search($feed_id, $append_feeds); if ($enable) { if ($enable_key === false) { array_push($enabled_feeds, $feed_id); } } else { if ($enable_key !== false) { unset($enabled_feeds[$enable_key]); } } if ($append) { if ($append_key === false) { array_push($append_feeds, $feed_id); } } else { if ($append_key !== false) { unset($append_feeds[$append_key]); } } $this->host->set($this, "enabled_feeds", $enabled_feeds); $this->host->set($this, "append_feeds", $append_feeds); } function hook_article_filter_action($article, $action) { switch ($action) { case "action_inline": return $this->process_article($article, false); case "action_append": return $this->process_article($article, true); } } public function extract_content($url) { global $fetch_effective_url; $tmp = UrlHelper::fetch([ "url" => $url, "http_accept" => "text/*", "type" => "text/html"]); if ($tmp && mb_strlen($tmp) < 1024 * 500) { $tmpdoc = new DOMDocument("1.0", "UTF-8"); if (!@$tmpdoc->loadHTML($tmp)) return false; // this is the worst hack yet :( if (strtolower($tmpdoc->encoding) != 'utf-8') { $tmp = preg_replace("//i", "", $tmp); if (empty($tmpdoc->encoding)) { $tmp = mb_convert_encoding($tmp, 'utf-8'); } else { $tmp = mb_convert_encoding($tmp, 'utf-8', $tmpdoc->encoding); } } try { $r = new Readability(new Configuration()); if ($r->parse($tmp)) { $tmpxpath = new DOMXPath($r->getDOMDOcument()); $entries = $tmpxpath->query('(//a[@href]|//img[@src])'); foreach ($entries as $entry) { if ($entry->hasAttribute("href")) { $entry->setAttribute("href", rewrite_relative_url($fetch_effective_url, $entry->getAttribute("href"))); } if ($entry->hasAttribute("src")) { $entry->setAttribute("src", rewrite_relative_url($fetch_effective_url, $entry->getAttribute("src"))); } } return $r->getContent(); } } catch (Exception $e) { return false; } } return false; } function process_article($article, $append_mode) { $extracted_content = $this->extract_content($article["link"]); # let's see if there's anything of value in there $content_test = trim(strip_tags(Sanitizer::sanitize($extracted_content))); if ($content_test) { if ($append_mode) $article["content"] .= "
" . $extracted_content; else $article["content"] = $extracted_content; } return $article; } private function get_stored_array($name) { $tmp = $this->host->get($this, $name); if (!is_array($tmp)) $tmp = []; return $tmp; } function hook_article_filter($article) { $enabled_feeds = $this->get_stored_array("enabled_feeds"); $append_feeds = $this->get_stored_array("append_feeds"); $feed_id = $article["feed"]["id"]; if (!in_array($feed_id, $enabled_feeds)) return $article; return $this->process_article($article, in_array($feed_id, $append_feeds)); } function hook_get_full_text($link) { $enable_share_anything = $this->host->get($this, "enable_share_anything"); if ($enable_share_anything) { $extracted_content = $this->extract_content($link); # let's see if there's anything of value in there $content_test = trim(strip_tags(Sanitizer::sanitize($extracted_content))); if ($content_test) { return $extracted_content; } } return false; } function api_version() { return 2; } private function filter_unknown_feeds($enabled_feeds) { $tmp = array(); foreach ($enabled_feeds as $feed) { $sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? AND owner_uid = ?"); $sth->execute([$feed, $_SESSION['uid']]); if ($row = $sth->fetch()) { array_push($tmp, $feed); } } return $tmp; } function embed() { $article_id = (int) $_REQUEST["param"]; $sth = $this->pdo->prepare("SELECT link FROM ttrss_entries WHERE id = ?"); $sth->execute([$article_id]); $ret = []; if ($row = $sth->fetch()) { $ret["content"] = Sanitizer::sanitize($this->extract_content($row["link"])); } print json_encode($ret); } }