mirror of https://tt-rss.org/git/tt-rss.git
284 lines
7.2 KiB
PHP
Executable File
284 lines
7.2 KiB
PHP
Executable File
<?php
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use andreskrey\Readability\Readability;
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use andreskrey\Readability\Configuration;
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class Af_Readability extends Plugin {
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/* @var PluginHost $host */
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private $host;
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function about() {
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return array(1.0,
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"Try to inline article content using Readability",
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"fox");
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}
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function flags() {
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return array("needs_curl" => true);
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}
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function save() {
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$enable_share_anything = checkbox_to_sql_bool($_POST["enable_share_anything"]);
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$this->host->set($this, "enable_share_anything", $enable_share_anything);
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echo __("Data saved.");
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}
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function init($host)
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{
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$this->host = $host;
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if (version_compare(PHP_VERSION, '7.0.0', '<')) {
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user_error("af_readability requires PHP 7.0", E_USER_WARNING);
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return;
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}
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$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
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$host->add_hook($host::HOOK_PREFS_TAB, $this);
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$host->add_hook($host::HOOK_PREFS_EDIT_FEED, $this);
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$host->add_hook($host::HOOK_PREFS_SAVE_FEED, $this);
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// Note: we have to install the hook even if disabled because init() is being run before plugin data has loaded
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// so we can't check for our storage-set options here
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$host->add_hook($host::HOOK_GET_FULL_TEXT, $this);
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$host->add_filter_action($this, "action_inline", __("Inline content"));
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}
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function hook_prefs_tab($args) {
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if ($args != "prefFeeds") return;
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print "<div dojoType='dijit.layout.AccordionPane'
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title=\"<i class='material-icons'>extension</i> ".__('Readability settings (af_readability)')."\">";
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if (version_compare(PHP_VERSION, '7.0.0', '<')) {
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print_error("This plugin requires PHP 7.0.");
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} else {
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print "<h2>" . __("Global settings") . "</h2>";
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print_notice("Enable for specific feeds in the feed editor.");
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print "<form dojoType='dijit.form.Form'>";
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print "<script type='dojo/method' event='onSubmit' args='evt'>
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evt.preventDefault();
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if (this.validate()) {
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console.log(dojo.objectToQuery(this.getValues()));
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new Ajax.Request('backend.php', {
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parameters: dojo.objectToQuery(this.getValues()),
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onComplete: function(transport) {
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Notify.info(transport.responseText);
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}
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});
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//this.reset();
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}
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</script>";
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print_hidden("op", "pluginhandler");
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print_hidden("method", "save");
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print_hidden("plugin", "af_readability");
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$enable_share_anything = $this->host->get($this, "enable_share_anything");
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print "<fieldset>";
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print "<label class='checkbox'> ";
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print_checkbox("enable_share_anything", $enable_share_anything);
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print " " . __("Provide full-text services to core code (bookmarklets) and other plugins");
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print "</label>";
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print "</fieldset>";
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print_button("submit", __("Save"), "class='alt-primary'");
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print "</form>";
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!is_array($enabled_feeds)) $enabled_feeds = array();
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$enabled_feeds = $this->filter_unknown_feeds($enabled_feeds);
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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if (count($enabled_feeds) > 0) {
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print "<h3>" . __("Currently enabled for (click to edit):") . "</h3>";
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print "<ul class='panel panel-scrollable list list-unstyled'>";
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foreach ($enabled_feeds as $f) {
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print "<li><i class='material-icons'>rss_feed</i> <a href='#'
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onclick='CommonDialogs.editFeed($f)'>".
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Feeds::getFeedTitle($f) . "</a></li>";
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}
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print "</ul>";
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}
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}
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print "</div>";
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}
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function hook_prefs_edit_feed($feed_id) {
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print "<header>".__("Readability")."</header>";
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print "<section>";
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!is_array($enabled_feeds)) $enabled_feeds = array();
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$key = array_search($feed_id, $enabled_feeds);
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$checked = $key !== FALSE ? "checked" : "";
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print "<fieldset>";
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print "<label class='checkbox'><input dojoType='dijit.form.CheckBox' type='checkbox' id='af_readability_enabled'
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name='af_readability_enabled' $checked> ".__('Inline article content')."</label>";
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print "</fieldset>";
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print "</section>";
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}
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function hook_prefs_save_feed($feed_id) {
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!is_array($enabled_feeds)) $enabled_feeds = array();
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$enable = checkbox_to_sql_bool($_POST["af_readability_enabled"]);
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$key = array_search($feed_id, $enabled_feeds);
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if ($enable) {
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if ($key === FALSE) {
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array_push($enabled_feeds, $feed_id);
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}
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} else {
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if ($key !== FALSE) {
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unset($enabled_feeds[$key]);
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}
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}
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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}
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/**
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* @SuppressWarnings(PHPMD.UnusedFormalParameter)
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*/
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function hook_article_filter_action($article, $action) {
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return $this->process_article($article);
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}
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public function extract_content($url) {
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global $fetch_effective_url;
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$tmp = fetch_file_contents([
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"url" => $url,
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"http_accept" => "text/*",
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"type" => "text/html"]);
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if ($tmp && mb_strlen($tmp) < 1024 * 500) {
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$tmpdoc = new DOMDocument("1.0", "UTF-8");
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if (!@$tmpdoc->loadHTML($tmp))
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return false;
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// this is the worst hack yet :(
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if (strtolower($tmpdoc->encoding) != 'utf-8') {
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$tmp = preg_replace("/<meta.*?charset.*?\/?>/i", "", $tmp);
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$tmp = mb_convert_encoding($tmp, 'utf-8', $tmpdoc->encoding);
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}
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try {
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$r = new Readability(new Configuration());
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if ($r->parse($tmp)) {
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$tmpxpath = new DOMXPath($r->getDOMDOcument());
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$entries = $tmpxpath->query('(//a[@href]|//img[@src])');
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foreach ($entries as $entry) {
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if ($entry->hasAttribute("href")) {
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$entry->setAttribute("href",
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rewrite_relative_url($fetch_effective_url, $entry->getAttribute("href")));
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}
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if ($entry->hasAttribute("src")) {
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$entry->setAttribute("src",
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rewrite_relative_url($fetch_effective_url, $entry->getAttribute("src")));
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}
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}
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return $r->getContent();
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}
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} catch (Exception $e) {
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return false;
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}
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}
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return false;
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}
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function process_article($article) {
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$extracted_content = $this->extract_content($article["link"]);
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# let's see if there's anything of value in there
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$content_test = trim(strip_tags(sanitize($extracted_content)));
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if ($content_test) {
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$article["content"] = $extracted_content;
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}
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return $article;
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}
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function hook_article_filter($article) {
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!is_array($enabled_feeds)) return $article;
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$key = array_search($article["feed"]["id"], $enabled_feeds);
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if ($key === FALSE) return $article;
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return $this->process_article($article);
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}
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function hook_get_full_text($link)
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{
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$enable_share_anything = $this->host->get($this, "enable_share_anything");
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if ($enable_share_anything) {
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$extracted_content = $this->extract_content($link);
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# let's see if there's anything of value in there
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$content_test = trim(strip_tags(sanitize($extracted_content)));
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if ($content_test) {
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return $extracted_content;
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}
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}
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return false;
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}
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function api_version() {
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return 2;
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}
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private function filter_unknown_feeds($enabled_feeds) {
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$tmp = array();
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foreach ($enabled_feeds as $feed) {
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$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? AND owner_uid = ?");
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$sth->execute([$feed, $_SESSION['uid']]);
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if ($row = $sth->fetch()) {
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array_push($tmp, $feed);
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}
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}
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return $tmp;
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}
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}
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