567 lines
17 KiB
PHP
Executable File
567 lines
17 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_RedditImgur extends Plugin {
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/* @var PluginHost $host */
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private $host;
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function about() {
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return array(1.0,
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"Inline images (and other content) in Reddit RSS feeds",
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"fox");
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}
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function flags() {
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return array("needs_curl" => true);
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}
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function init($host) {
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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, $this);
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}
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function hook_prefs_tab($args) {
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if ($args != "prefFeeds") return;
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print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Reddit content settings (af_redditimgur)')."\">";
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$enable_readability = $this->host->get($this, "enable_readability");
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$enable_content_dupcheck = $this->host->get($this, "enable_content_dupcheck");
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if (version_compare(PHP_VERSION, '5.6.0', '<')) {
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print_error("Readability requires PHP version 5.6.");
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}
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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_redditimgur");
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print_checkbox("enable_readability", $enable_readability);
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print " <label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
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print "<br/>";
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print_checkbox("enable_content_dupcheck", $enable_content_dupcheck);
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print " <label for=\"enable_content_dupcheck\">" . __("Enable additional duplicate checking") . "</label>";
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print "<p>"; print_button("submit", __("Save"));
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print "</form>";
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print "</div>";
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}
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function save() {
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$enable_readability = checkbox_to_sql_bool($_POST["enable_readability"]);
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$enable_content_dupcheck = checkbox_to_sql_bool($_POST["enable_content_dupcheck"]);
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$this->host->set($this, "enable_readability", $enable_readability, false);
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$this->host->set($this, "enable_content_dupcheck", $enable_content_dupcheck);
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echo __("Configuration saved");
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}
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/**
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* @SuppressWarnings(PHPMD.UnusedFormalParameter)
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*/
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private function inline_stuff($article, &$doc, $xpath, $debug = false) {
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$entries = $xpath->query('(//a[@href]|//img[@src])');
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$img_entries = $xpath->query("(//img[@src])");
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$found = false;
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//$debug = 1;
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foreach ($entries as $entry) {
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if ($entry->hasAttribute("href") && strpos($entry->getAttribute("href"), "reddit.com") === FALSE) {
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_debug("processing href: " . $entry->getAttribute("href"), $debug);
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$matches = array();
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if (!$found && preg_match("/^https?:\/\/twitter.com\/(.*?)\/status\/(.*)/", $entry->getAttribute("href"), $matches)) {
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_debug("handling as twitter: " . $matches[1] . " " . $matches[2], $debug);
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$oembed_result = fetch_file_contents("https://publish.twitter.com/oembed?url=" . urlencode($entry->getAttribute("href")));
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if ($oembed_result) {
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$oembed_result = json_decode($oembed_result, true);
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if ($oembed_result && isset($oembed_result["html"])) {
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$tmp = new DOMDocument();
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if ($tmp->loadHTML('<?xml encoding="utf-8" ?>' . $oembed_result["html"])) {
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$p = $doc->createElement("p");
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$p->appendChild($doc->importNode(
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$tmp->getElementsByTagName("blockquote")->item(0), TRUE));
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($p, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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$found = 1;
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}
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}
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}
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}
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if (!$found && preg_match("/\.gfycat.com\/([a-z]+)?(\.[a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
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$entry->setAttribute("href", "http://www.gfycat.com/".$matches[1]);
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}
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if (!$found && preg_match("/https?:\/\/(www\.)?gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
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_debug("Handling as Gfycat", $debug);
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$source_stream = 'https://giant.gfycat.com/' . $matches[2] . '.mp4';
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$poster_url = 'https://thumbs.gfycat.com/' . $matches[2] . '-mobile.jpg';
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$content_type = $this->get_content_type($source_stream);
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if (strpos($content_type, "video/") !== FALSE) {
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$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
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$found = 1;
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}
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}
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if (!$found && preg_match("/https?:\/\/v\.redd\.it\/(.*)$/i", $entry->getAttribute("href"), $matches)) {
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_debug("Handling as reddit inline video", $debug);
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$img = $img_entries->item(0);
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if ($img) {
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$poster_url = $img->getAttribute("src");
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} else {
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$poster_url = false;
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}
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// Get original article URL from v.redd.it redirects
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$source_article_url = $this->get_location($matches[0]);
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_debug("Resolved ".$matches[0]." to ".$source_article_url, $debug);
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$source_stream = false;
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if ($source_article_url) {
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$j = json_decode(fetch_file_contents($source_article_url.".json"), true);
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if ($j) {
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foreach ($j as $listing) {
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foreach ($listing["data"]["children"] as $child) {
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if ($child["data"]["url"] == $matches[0]) {
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try {
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$source_stream = $child["data"]["media"]["reddit_video"]["fallback_url"];
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}
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catch (Exception $e) {
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}
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break 2;
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}
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}
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}
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}
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}
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if (!$source_stream) {
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$source_stream = "https://v.redd.it/" . $matches[1] . "/DASH_600_K";
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}
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$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
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$found = 1;
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}
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if (!$found && preg_match("/https?:\/\/(www\.)?streamable.com\//i", $entry->getAttribute("href"))) {
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_debug("Handling as Streamable", $debug);
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$tmp = fetch_file_contents($entry->getAttribute("href"));
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if ($tmp) {
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$tmpdoc = new DOMDocument();
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if (@$tmpdoc->loadHTML($tmp)) {
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$tmpxpath = new DOMXPath($tmpdoc);
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$source_node = $tmpxpath->query("//video[contains(@class,'video-player-tag')]//source[contains(@src, '.mp4')]")->item(0);
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$poster_node = $tmpxpath->query("//video[contains(@class,'video-player-tag') and @poster]")->item(0);
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if ($source_node && $poster_node) {
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$source_stream = $source_node->getAttribute("src");
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$poster_url = $poster_node->getAttribute("poster");
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$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
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$found = 1;
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}
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}
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}
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}
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// imgur .gif -> .gifv
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if (!$found && preg_match("/i\.imgur\.com\/(.*?)\.gif$/i", $entry->getAttribute("href"))) {
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_debug("Handling as imgur gif (->gifv)", $debug);
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$entry->setAttribute("href",
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str_replace(".gif", ".gifv", $entry->getAttribute("href")));
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}
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if (!$found && preg_match("/\.(gifv|mp4)$/i", $entry->getAttribute("href"))) {
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_debug("Handling as imgur gifv", $debug);
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$source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
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if (strpos($source_stream, "imgur.com") !== FALSE)
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$poster_url = str_replace(".mp4", "h.jpg", $source_stream);
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$this->handle_as_video($doc, $entry, $source_stream, $poster_url, $debug);
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$found = true;
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}
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$matches = array();
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if (!$found && preg_match("/youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) ||
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preg_match("/youtube\.com\/.*?[\&\?]v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
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preg_match("/youtube\.com\/watch\?v=([\w-]+)/", $entry->getAttribute("href"), $matches) ||
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preg_match("/\/\/youtu.be\/([\w-]+)/", $entry->getAttribute("href"), $matches)) {
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$vid_id = $matches[1];
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_debug("Handling as youtube: $vid_id", $debug);
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$iframe = $doc->createElement("iframe");
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$iframe->setAttribute("class", "youtube-player");
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$iframe->setAttribute("type", "text/html");
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$iframe->setAttribute("width", "640");
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$iframe->setAttribute("height", "385");
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$iframe->setAttribute("src", "https://www.youtube.com/embed/$vid_id");
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$iframe->setAttribute("allowfullscreen", "1");
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$iframe->setAttribute("frameborder", "0");
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($iframe, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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$found = true;
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}
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if (!$found && preg_match("/\.(jpg|jpeg|gif|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href")) ||
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mb_strpos($entry->getAttribute("href"), "i.reddituploads.com") !== FALSE ||
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mb_strpos($this->get_content_type($entry->getAttribute("href")), "image/") !== FALSE) {
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_debug("Handling as a picture", $debug);
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$img = $doc->createElement('img');
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$img->setAttribute("src", $entry->getAttribute("href"));
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($img, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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$found = true;
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}
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// wtf is this even
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if (!$found && preg_match("/^https?:\/\/gyazo\.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
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$img_id = $matches[1];
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_debug("handling as gyazo: $img_id", $debug);
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$img = $doc->createElement('img');
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$img->setAttribute("src", "https://i.gyazo.com/$img_id.jpg");
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($img, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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$found = true;
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}
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// let's try meta properties
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if (!$found) {
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_debug("looking for meta og:image", $debug);
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$content = fetch_file_contents(["url" => $entry->getAttribute("href"),
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"http_accept" => "text/*"]);
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if ($content) {
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$cdoc = new DOMDocument();
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if (@$cdoc->loadHTML($content)) {
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$cxpath = new DOMXPath($cdoc);
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$og_image = $cxpath->query("//meta[@property='og:image']")->item(0);
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$og_video = $cxpath->query("//meta[@property='og:video']")->item(0);
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if ($og_video) {
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$source_stream = $og_video->getAttribute("content");
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if ($source_stream) {
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if ($og_image) {
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$poster_url = $og_image->getAttribute("content");
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} else {
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$poster_url = false;
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}
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$this->handle_as_video($doc, $entry, $source_stream, $poster_url);
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$found = true;
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}
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} else if ($og_image) {
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$og_src = $og_image->getAttribute("content");
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if ($og_src) {
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$img = $doc->createElement('img');
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$img->setAttribute("src", $og_src);
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($img, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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$found = true;
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}
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}
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}
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}
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}
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}
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// remove tiny thumbnails
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if ($entry->hasAttribute("src")) {
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if ($entry->parentNode && $entry->parentNode->parentNode) {
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$entry->parentNode->parentNode->removeChild($entry->parentNode);
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}
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}
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}
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return $found;
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}
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function hook_article_filter($article) {
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if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
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$doc = new DOMDocument();
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@$doc->loadHTML($article["content"]);
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$xpath = new DOMXPath($doc);
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$content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
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if ($this->host->get($this, "enable_content_dupcheck")) {
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if ($content_link) {
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$content_href = $content_link->getAttribute("href");
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$entry_guid = $article["guid_hashed"];
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$owner_uid = $article["owner_uid"];
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if (DB_TYPE == "pgsql") {
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$interval_qpart = "date_entered < NOW() - INTERVAL '1 day'";
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} else {
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$interval_qpart = "date_entered < DATE_SUB(NOW(), INTERVAL 1 DAY)";
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}
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$sth = $this->pdo->prepare("SELECT COUNT(id) AS cid
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FROM ttrss_entries, ttrss_user_entries WHERE
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ref_id = id AND
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$interval_qpart AND
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guid != ? AND
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owner_uid = ? AND
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content LIKE ?");
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$sth->execute([$entry_guid, $owner_uid, "%href=\"$content_href\">[link]%"]);
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if ($row = $sth->fetch()) {
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$num_found = $row['cid'];
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if ($num_found > 0) $article["force_catchup"] = true;
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}
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}
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}
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$found = $this->inline_stuff($article, $doc, $xpath);
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$node = $doc->getElementsByTagName('body')->item(0);
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if ($node && $found) {
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$article["content"] = $doc->saveHTML($node);
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} else if ($content_link) {
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$article = $this->readability($article, $content_link->getAttribute("href"), $doc, $xpath);
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}
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}
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return $article;
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}
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function api_version() {
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return 2;
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}
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private function handle_as_video($doc, $entry, $source_stream, $poster_url = false, $debug = false) {
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_debug("handle_as_video: $source_stream", $debug);
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$video = $doc->createElement('video');
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$video->setAttribute("autoplay", "1");
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$video->setAttribute("controls", "1");
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$video->setAttribute("loop", "1");
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if ($poster_url) $video->setAttribute("poster", $poster_url);
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$source = $doc->createElement('source');
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$source->setAttribute("src", $source_stream);
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$source->setAttribute("type", "video/mp4");
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$video->appendChild($source);
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($video, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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$img = $doc->createElement('img');
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$img->setAttribute("src",
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"data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
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$entry->parentNode->insertBefore($img, $entry);
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}
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function testurl() {
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$url = htmlspecialchars($_REQUEST["url"]);
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header("Content-type: text/plain");
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print "URL: $url\n";
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$doc = new DOMDocument();
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@$doc->loadHTML("<html><body><a href=\"$url\">[link]</a></body>");
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$xpath = new DOMXPath($doc);
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$found = $this->inline_stuff([], $doc, $xpath, true);
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print "Inline result: $found\n";
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if (!$found) {
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print "\nReadability result:\n";
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$article = $this->readability([], $url, $doc, $xpath, true);
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print_r($article);
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} else {
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print "\nResulting HTML:\n";
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print $doc->saveHTML();
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}
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}
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private function get_header($url, $useragent = SELF_USER_AGENT, $header) {
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$ret = false;
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if (function_exists("curl_init") && !defined("NO_CURL")) {
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$ch = curl_init($url);
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curl_setopt($ch, CURLOPT_TIMEOUT, 5);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_HEADER, true);
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curl_setopt($ch, CURLOPT_NOBODY, true);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, !ini_get("open_basedir"));
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curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
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@curl_exec($ch);
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$ret = curl_getinfo($ch, $header);
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}
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return $ret;
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}
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private function get_content_type($url, $useragent = SELF_USER_AGENT) {
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return $this->get_header($url, $useragent, CURLINFO_CONTENT_TYPE);
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}
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private function get_location($url, $useragent = SELF_USER_AGENT) {
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return $this->get_header($url, $useragent, CURLINFO_EFFECTIVE_URL);
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}
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/**
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* @SuppressWarnings(PHPMD.UnusedFormalParameter)
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*/
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private function readability($article, $url, $doc, $xpath, $debug = false) {
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if (!defined('NO_CURL') && function_exists("curl_init") && $this->host->get($this, "enable_readability") &&
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mb_strlen(strip_tags($article["content"])) <= 150) {
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// do not try to embed posts linking back to other reddit posts
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// readability.php requires PHP 5.6
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if ($url && strpos($url, "reddit.com") === FALSE && version_compare(PHP_VERSION, '5.6.0', '>=')) {
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/* link may lead to a huge video file or whatever, we need to check content type before trying to
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parse it which p much requires curl */
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$useragent_compat = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)";
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$content_type = $this->get_content_type($url, $useragent_compat);
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if ($content_type && strpos($content_type, "text/html") !== FALSE) {
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$tmp = fetch_file_contents(["url" => $url,
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"useragent" => $useragent_compat,
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"http_accept" => "text/html"]);
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if ($debug) _debug("tmplen: " . mb_strlen($tmp));
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if ($tmp && mb_strlen($tmp) < 1024 * 500) {
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$r = new Readability(new Configuration());
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try {
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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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$entry->setAttribute("href",
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rewrite_relative_url($url, $entry->getAttribute("href")));
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}
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if ($entry->hasAttribute("src")) {
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$entry->setAttribute("src",
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rewrite_relative_url($url, $entry->getAttribute("src")));
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}
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}
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$article["content"] = $r->getContent() . "<hr/>" . $article["content"];
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}
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} catch (Exception $e) {
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//
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}
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}
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}
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}
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}
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return $article;
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}
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}
|