339 lines
8.6 KiB
PHP
Executable File
339 lines
8.6 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 = $host;
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$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, $this);
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$host->add_hook($host::HOOK_ARTICLE_BUTTON, $this);
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// Note: we have to install the hook even if disabled because init() is being run before plugin data has loaded
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// so we can't check for our storage-set options here
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$host->add_hook($host::HOOK_GET_FULL_TEXT, $this);
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$host->add_filter_action($this, "action_inline", __("Inline content"));
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$host->add_filter_action($this, "action_inline_append", __("Append content"));
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}
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function get_js() {
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return file_get_contents(__DIR__ . "/init.js");
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}
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function hook_article_button($line) {
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return "<i class='material-icons' onclick=\"Plugins.Af_Readability.embed(".$line["id"].")\"
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style='cursor : pointer' title='".__('Toggle full article text')."'>description</i>";
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}
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function hook_prefs_tab($args) {
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if ($args != "prefFeeds") return;
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$enable_share_anything = sql_bool_to_bool($this->host->get($this, "enable_share_anything"));
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?>
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<div dojoType='dijit.layout.AccordionPane'
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title="<i class='material-icons'>extension</i> <?= __('Readability settings (af_readability)') ?>">
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<?= format_notice("Enable for specific feeds in the feed editor.") ?>
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<form dojoType='dijit.form.Form'>
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<?= \Controls\pluginhandler_tags($this, "save") ?>
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<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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Notify.progress('Saving data...', true);
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xhr.post("backend.php", this.getValues(), (reply) => {
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Notify.info(reply);
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})
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}
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</script>
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<fieldset>
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<label class='checkbox'>
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<?= \Controls\checkbox_tag("enable_share_anything", $enable_share_anything) ?>
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<?= __("Provide full-text services to core code (bookmarklets) and other plugins") ?>
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</label>
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</fieldset>
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<hr/>
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<?= \Controls\submit_tag(__("Save")) ?>
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</form>
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<?php
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/* cleanup */
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$enabled_feeds = $this->filter_unknown_feeds(
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$this->get_stored_array("enabled_feeds"));
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$append_feeds = $this->filter_unknown_feeds(
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$this->get_stored_array("append_feeds"));
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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$this->host->set($this, "append_feeds", $append_feeds);
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?>
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<?php if (count($enabled_feeds) > 0) { ?>
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<hr/>
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<h3><?= __("Currently enabled for (click to edit):") ?></h3>
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<ul class='panel panel-scrollable list list-unstyled'>
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<?php foreach ($enabled_feeds as $f) { ?>
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<li>
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<i class='material-icons'>rss_feed</i>
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<a href='#' onclick="CommonDialogs.editFeed(<?= $f ?>)">
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<?= Feeds::_get_title($f) . " " . (in_array($f, $append_feeds) ? __("(append)") : "") ?>
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</a>
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</li>
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<?php } ?>
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</ul>
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<?php } ?>
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</div>
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<?php
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}
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function hook_prefs_edit_feed($feed_id) {
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$enabled_feeds = $this->get_stored_array("enabled_feeds");
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$append_feeds = $this->get_stored_array("append_feeds");
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?>
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<header><?= __("Readability") ?></header>
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<section>
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<fieldset>
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<label class='checkbox'>
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<?= \Controls\checkbox_tag("af_readability_enabled", in_array($feed_id, $enabled_feeds)) ?>
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<?= __('Inline article content') ?>
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</label>
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</fieldset>
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<fieldset>
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<label class='checkbox'>
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<?= \Controls\checkbox_tag("af_readability_append", in_array($feed_id, $append_feeds)) ?>
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<?= __('Append to summary, instead of replacing it') ?>
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</label>
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</fieldset>
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</section>
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<?php
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}
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function hook_prefs_save_feed($feed_id) {
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$enabled_feeds = $this->get_stored_array("enabled_feeds");
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$append_feeds = $this->get_stored_array("append_feeds");
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$enable = checkbox_to_sql_bool($_POST["af_readability_enabled"] ?? "");
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$append = checkbox_to_sql_bool($_POST["af_readability_append"] ?? "");
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$enable_key = array_search($feed_id, $enabled_feeds);
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$append_key = array_search($feed_id, $append_feeds);
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if ($enable) {
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if ($enable_key === false) {
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array_push($enabled_feeds, $feed_id);
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}
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} else {
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if ($enable_key !== false) {
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unset($enabled_feeds[$enable_key]);
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}
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}
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if ($append) {
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if ($append_key === false) {
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array_push($append_feeds, $feed_id);
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}
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} else {
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if ($append_key !== false) {
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unset($append_feeds[$append_key]);
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}
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}
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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$this->host->set($this, "append_feeds", $append_feeds);
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}
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function hook_article_filter_action($article, $action) {
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switch ($action) {
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case "action_inline":
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return $this->process_article($article, false);
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case "action_append":
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return $this->process_article($article, true);
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}
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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 = UrlHelper::fetch([
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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", "", $tmp);
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if (empty($tmpdoc->encoding)) {
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$tmp = mb_convert_encoding($tmp, 'utf-8');
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} else {
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$tmp = mb_convert_encoding($tmp, 'utf-8', $tmpdoc->encoding);
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}
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}
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try {
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$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, $append_mode) {
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$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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$content_test = trim(strip_tags(Sanitizer::sanitize($extracted_content)));
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if ($content_test) {
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if ($append_mode)
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$article["content"] .= "<hr/>" . $extracted_content;
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else
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$article["content"] = $extracted_content;
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}
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return $article;
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}
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private function get_stored_array($name) {
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$tmp = $this->host->get($this, $name);
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if (!is_array($tmp)) $tmp = [];
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return $tmp;
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}
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function hook_article_filter($article) {
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$enabled_feeds = $this->get_stored_array("enabled_feeds");
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$append_feeds = $this->get_stored_array("append_feeds");
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$feed_id = $article["feed"]["id"];
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if (!in_array($feed_id, $enabled_feeds))
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return $article;
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return $this->process_article($article, in_array($feed_id, $append_feeds));
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}
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function hook_get_full_text($link) {
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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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$content_test = trim(strip_tags(Sanitizer::sanitize($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 $tmp;
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}
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function embed() {
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$article_id = (int) $_REQUEST["id"];
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$sth = $this->pdo->prepare("SELECT link FROM ttrss_entries WHERE id = ?");
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$sth->execute([$article_id]);
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$ret = [];
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if ($row = $sth->fetch()) {
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$ret["content"] = Sanitizer::sanitize($this->extract_content($row["link"]));
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}
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print json_encode($ret);
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}
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}
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