<?php use andreskrey\Readability\Readability; use andreskrey\Readability\Configuration; class Af_Readability extends Plugin { /* @var PluginHost $host */ private $host; function about() { return array(1.0, "Try to inline article content using Readability", "fox"); } function flags() { return array("needs_curl" => 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($line) { return "<i class='material-icons' onclick=\"Plugins.Af_Readability.embed(".$line["id"].")\" style='cursor : pointer' title='".__('Toggle full article text')."'>description</i>"; } function hook_prefs_tab($args) { if ($args != "prefFeeds") return; print "<div dojoType='dijit.layout.AccordionPane' title=\"<i class='material-icons'>extension</i> ".__('Readability settings (af_readability)')."\">"; if (version_compare(PHP_VERSION, '7.0.0', '<')) { print_error("This plugin requires PHP 7.0."); } else { print "<h2>" . __("Global settings") . "</h2>"; print_notice("Enable for specific feeds in the feed editor."); print "<form dojoType='dijit.form.Form'>"; print "<script type='dojo/method' event='onSubmit' args='evt'> evt.preventDefault(); if (this.validate()) { console.log(dojo.objectToQuery(this.getValues())); new Ajax.Request('backend.php', { parameters: dojo.objectToQuery(this.getValues()), onComplete: function(transport) { Notify.info(transport.responseText); } }); //this.reset(); } </script>"; print_hidden("op", "pluginhandler"); print_hidden("method", "save"); print_hidden("plugin", "af_readability"); $enable_share_anything = $this->host->get($this, "enable_share_anything"); print "<fieldset>"; print "<label class='checkbox'> "; print_checkbox("enable_share_anything", $enable_share_anything); print " " . __("Provide full-text services to core code (bookmarklets) and other plugins"); print "</label>"; print "</fieldset>"; print_button("submit", __("Save"), "class='alt-primary'"); print "</form>"; /* 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 "<h3>" . __("Currently enabled for (click to edit):") . "</h3>"; print "<ul class='panel panel-scrollable list list-unstyled'>"; foreach ($enabled_feeds as $f) { $is_append = in_array($f, $append_feeds); print "<li><i class='material-icons'>rss_feed</i> <a href='#' onclick='CommonDialogs.editFeed($f)'>". Feeds::getFeedTitle($f) . " " . ($is_append ? __("(append)") : "") . "</a></li>"; } print "</ul>"; } } print "</div>"; } function hook_prefs_edit_feed($feed_id) { print "<header>".__("Readability")."</header>"; print "<section>"; $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 "<fieldset>"; print "<label class='checkbox'><input dojoType='dijit.form.CheckBox' type='checkbox' id='af_readability_enabled' name='af_readability_enabled' $enable_checked> ".__('Inline article content')."</label>"; print "</fieldset><fieldset>"; print "<label class='checkbox'><input dojoType='dijit.form.CheckBox' type='checkbox' id='af_readability_append' name='af_readability_append' $append_checked> ".__('Append to summary, instead of replacing it')."</label>"; print "</section>"; } function hook_prefs_save_feed($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", $append_feeds); } /** * @SuppressWarnings(PHPMD.UnusedFormalParameter) */ function hook_article_filter_action($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("/<meta.*?charset.*?\/?>/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"] .= "<hr/>" . $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); } }