349 lines
10 KiB
PHP
349 lines
10 KiB
PHP
<?php
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class Af_RedditImgur extends Plugin {
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private $host;
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function about() {
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return array(1.0,
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"Inline images (and other content) in Reddit RSS feeds",
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"fox");
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}
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function init($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 ($args != "prefFeeds") return;
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print "<div id=\"af_redditimgur_prefs\" dojoType=\"dijit.layout.AccordionPane\" title=\"".__('af_redditimgur settings')."\">";
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$enable_readability = $this->host->get($this, "enable_readability");
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$enable_readability_checked = $enable_readability ? "checked" : "";
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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 "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pluginhandler\">";
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print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"save\">";
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print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_redditimgur\">";
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print "<h3>" . __("Global settings") . "</h3>";
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print_notice("Uses Readability (full-text-rss) implementation by <a target='_blank' href='https://bitbucket.org/fivefilters/'>FiveFilters.org</a>");
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print "<p/>";
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print "<input dojoType=\"dijit.form.CheckBox\" id=\"enable_readability\"
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$enable_readability_checked name=\"enable_readability\"> ";
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print "<label for=\"enable_readability\">" . __("Extract missing content using Readability") . "</label>";
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print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".
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__("Save")."</button>";
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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"]) == "true";
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$this->host->set($this, "enable_readability", $enable_readability);
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echo __("Configuration saved");
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}
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private function inline_stuff($article, &$doc, $xpath) {
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$entries = $xpath->query('(//a[@href]|//img[@src])');
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$found = false;
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foreach ($entries as $entry) {
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if ($entry->hasAttribute("href")) {
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$matches = array();
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if (preg_match("/https?:\/\/gfycat.com\/([a-z]+)$/i", $entry->getAttribute("href"), $matches)) {
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$tmp = fetch_file_contents($entry->getAttribute("href"));
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if ($tmp) {
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$tmpdoc = new DOMDocument();
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@$tmpdoc->loadHTML($tmp);
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if ($tmpdoc) {
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$tmpxpath = new DOMXPath($tmpdoc);
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$source_meta = $tmpxpath->query("//meta[@property='og:video']")->item(0);
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if ($source_meta) {
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$source_stream = $source_meta->getAttribute("content");
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if ($source_stream) {
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$this->handle_as_video($doc, $entry, $source_stream);
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$found = 1;
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}
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}
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}
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}
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}
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if (preg_match("/\.(gifv)$/i", $entry->getAttribute("href"))) {
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$source_stream = str_replace(".gifv", ".mp4", $entry->getAttribute("href"));
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$this->handle_as_video($doc, $entry, $source_stream);
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$found = true;
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}
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$matches = array();
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if (preg_match("/\/\/www\.youtube\.com\/v\/([\w-]+)/", $entry->getAttribute("href"), $matches) ||
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preg_match("/\/\/www\.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 = $matches[1];
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$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 (preg_match("/\.(jpg|jpeg|gif|png)(\?[0-9][0-9]*)?$/i", $entry->getAttribute("href"))) {
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$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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// links to imgur pages
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$matches = array();
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if (preg_match("/^https?:\/\/(m\.)?imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
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$token = $matches[2];
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$album_content = fetch_file_contents($entry->getAttribute("href"),
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false, false, false, false, 10);
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if ($album_content && $token) {
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$adoc = new DOMDocument();
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@$adoc->loadHTML($album_content);
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if ($adoc) {
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$axpath = new DOMXPath($adoc);
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$aentries = $axpath->query('(//img[@src])');
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foreach ($aentries as $aentry) {
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if (preg_match("/\/\/i.imgur.com\/$token\./", $aentry->getAttribute("src"))) {
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$img = $doc->createElement('img');
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$img->setAttribute("src", $aentry->getAttribute("src"));
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$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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break;
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}
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}
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}
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}
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}
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// linked albums, ffs
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if (preg_match("/^https?:\/\/imgur.com\/(a|album|gallery)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
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$album_content = fetch_file_contents($entry->getAttribute("href"),
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false, false, false, false, 10);
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if ($album_content) {
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$adoc = new DOMDocument();
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@$adoc->loadHTML($album_content);
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if ($adoc) {
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$axpath = new DOMXPath($adoc);
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$aentries = $axpath->query("//meta[@property='og:image']");
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$urls = array();
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foreach ($aentries as $aentry) {
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if (!in_array($aentry->getAttribute("content"), $urls)) {
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$img = $doc->createElement('img');
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$img->setAttribute("src", $aentry->getAttribute("content"));
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$entry->parentNode->insertBefore($doc->createElement('br'), $entry);
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$br = $doc->createElement('br');
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$entry->parentNode->insertBefore($img, $entry);
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$entry->parentNode->insertBefore($br, $entry);
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array_push($urls, $aentry->getAttribute("content"));
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$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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$found = $this->inline_stuff($article, $doc, $xpath);
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if (function_exists("curl_init") && !$found && $this->host->get($this, "enable_readability") &&
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mb_strlen(strip_tags($article["content"])) <= 150) {
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if (!class_exists("Readability")) require_once(__DIR__ . "/classes/Readability.php");
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$content_link = $xpath->query("(//a[contains(., '[link]')])")->item(0);
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if ($content_link && strpos($content_link->getAttribute("href"), "reddit.com") === FALSE) {
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/* link may lead to a huge video file or whatever, we need to check content type before trying to
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parse it which p much requires curl */
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$ch = curl_init($content_link->getAttribute("href"));
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curl_setopt($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,
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!ini_get("safe_mode") && !ini_get("open_basedir"));
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curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
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@$result = curl_exec($ch);
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$content_type = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
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if ($content_type && strpos($content_type, "text/html") !== FALSE) {
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$tmp = fetch_file_contents($content_link->getAttribute("href"));
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if ($tmp) {
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$r = new Readability($tmp, $content_link->getAttribute("href"));
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if ($r->init()) {
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//$article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
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$tmpxpath = new DOMXPath($r->dom);
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$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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$entry->setAttribute("href",
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rewrite_relative_url($content_link->getAttribute("href"), $entry->getAttribute("href")));
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}
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if ($entry->hasAttribute("src")) {
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$entry->setAttribute("src",
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rewrite_relative_url($content_link->getAttribute("href"), $entry->getAttribute("src")));
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}
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}
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$article["content"] = $r->articleContent->innerHTML . "<hr/>" . $article["content"];
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$doc = new DOMDocument();
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@$doc->loadHTML($article["content"]);
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$xpath = new DOMXPath($doc);
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$found = $this->inline_stuff($article, $doc, $xpath);
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}
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}
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}
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}
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}
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$node = $doc->getElementsByTagName('body')->item(0);
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if ($node && $found) {
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$article["content"] = $doc->saveXML($node);
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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, $source_stream) {
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$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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$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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}
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?>
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