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- <?php
- class Af_Readability extends Plugin {
- 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"]) == "true";
- $this->host->set($this, "enable_share_anything", $enable_share_anything);
- echo __("Data saved.");
- }
- function init($host)
- {
- $this->host = $host;
- $host->add_hook($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);
- $host->add_filter_action($this, "action_inline", __("Inline content"));
- }
- function hook_prefs_tab($args) {
- if ($args != "prefFeeds") return;
- print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('af_readability settings')."\">";
- print_notice("Enable the plugin 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 "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pluginhandler\">";
- print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"save\">";
- print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_readability\">";
- $enable_share_anything = $this->host->get($this, "enable_share_anything");
- $enable_share_anything_checked = $enable_share_anything ? "checked" : "";
- print "<input dojoType=\"dijit.form.CheckBox\"
- $enable_share_anything_checked name=\"enable_share_anything\" id=\"enable_share_anything\">
- <label for=\"enable_share_anything\">" . __("Use Readability for pages shared via bookmarklet.") . "</label>";
- print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".
- __("Save")."</button>";
- print "</form>";
- $enabled_feeds = $this->host->get($this, "enabled_feeds");
- if (!is_array($enabled_feeds)) $enabled_feeds = array();
- $enabled_feeds = $this->filter_unknown_feeds($enabled_feeds);
- $this->host->set($this, "enabled_feeds", $enabled_feeds);
- if (count($enabled_feeds) > 0) {
- print "<h3>" . __("Currently enabled for (click to edit):") . "</h3>";
- print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
- foreach ($enabled_feeds as $f) {
- print "<li>" .
- "<img src='images/pub_set.png'
- style='vertical-align : middle'> <a href='#'
- onclick='editFeed($f)'>".
- getFeedTitle($f) . "</a></li>";
- }
- print "</ul>";
- }
- print "</div>";
- }
- function hook_prefs_edit_feed($feed_id) {
- print "<div class=\"dlgSec\">".__("Readability")."</div>";
- print "<div class=\"dlgSecCont\">";
- $enabled_feeds = $this->host->get($this, "enabled_feeds");
- if (!is_array($enabled_feeds)) $enabled_feeds = array();
- $key = array_search($feed_id, $enabled_feeds);
- $checked = $key !== FALSE ? "checked" : "";
- print "<hr/><input dojoType=\"dijit.form.CheckBox\" type=\"checkbox\" id=\"af_readability_enabled\"
- name=\"af_readability_enabled\"
- $checked> <label for=\"af_readability_enabled\">".__('Inline article content')."</label>";
- print "</div>";
- }
- function hook_prefs_save_feed($feed_id) {
- $enabled_feeds = $this->host->get($this, "enabled_feeds");
- if (!is_array($enabled_feeds)) $enabled_feeds = array();
- $enable = checkbox_to_sql_bool($_POST["af_readability_enabled"]) == 'true';
- $key = array_search($feed_id, $enabled_feeds);
- if ($enable) {
- if ($key === FALSE) {
- array_push($enabled_feeds, $feed_id);
- }
- } else {
- if ($key !== FALSE) {
- unset($enabled_feeds[$key]);
- }
- }
- $this->host->set($this, "enabled_feeds", $enabled_feeds);
- }
- function hook_article_filter_action($article, $action) {
- return $this->process_article($article);
- }
- public function extract_content($url) {
- if (!class_exists("Readability")) require_once(dirname(dirname(__DIR__)). "/lib/readability/Readability.php");
- if (!defined('NO_CURL') && function_exists('curl_init') && !ini_get("open_basedir")) {
- $ch = curl_init($url);
- curl_setopt($ch, CURLOPT_TIMEOUT, 5);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
- curl_setopt($ch, CURLOPT_HEADER, true);
- curl_setopt($ch, CURLOPT_NOBODY, true);
- curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
- curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
- @$result = curl_exec($ch);
- $content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
- if (strpos($content_type, "text/html") === FALSE)
- return false;
- }
- $tmp = fetch_file_contents($url);
- if ($tmp && mb_strlen($tmp) < 1024 * 500) {
- $tmpdoc = new DOMDocument("1.0", "UTF-8");
- if (!$tmpdoc->loadHTML($tmp))
- return false;
- if (strtolower($tmpdoc->encoding) != 'utf-8') {
- $tmpxpath = new DOMXPath($tmpdoc);
- foreach ($tmpxpath->query("//meta") as $elem) {
- $elem->parentNode->removeChild($elem);
- }
- $tmp = $tmpdoc->saveHTML();
- }
- $r = new Readability($tmp, $url);
- if ($r->init()) {
- $tmpxpath = new DOMXPath($r->dom);
- $entries = $tmpxpath->query('(//a[@href]|//img[@src])');
- foreach ($entries as $entry) {
- if ($entry->hasAttribute("href")) {
- $entry->setAttribute("href",
- rewrite_relative_url($url, $entry->getAttribute("href")));
- }
- if ($entry->hasAttribute("src")) {
- $entry->setAttribute("src",
- rewrite_relative_url($url, $entry->getAttribute("src")));
- }
- }
- return $r->articleContent->innerHTML;
- }
- }
- return false;
- }
- function process_article($article) {
- $extracted_content = $this->extract_content($article["link"]);
- if ($extracted_content) {
- $article["content"] = $extracted_content;
- }
- return $article;
- }
- function hook_article_filter($article) {
- $enabled_feeds = $this->host->get($this, "enabled_feeds");
- if (!is_array($enabled_feeds)) return $article;
- $key = array_search($article["feed"]["id"], $enabled_feeds);
- if ($key === FALSE) return $article;
- return $this->process_article($article);
- }
- function api_version() {
- return 2;
- }
- private function filter_unknown_feeds($enabled_feeds) {
- $tmp = array();
- foreach ($enabled_feeds as $feed) {
- $result = db_query("SELECT id FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
- if (db_num_rows($result) != 0) {
- array_push($tmp, $feed);
- }
- }
- return $tmp;
- }
- }
- ?>
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