tt-rss/plugins/af_redditimgur/init.php
2015-05-14 11:03:06 +02:00

184 lines
7.7 KiB
PHP

<?php
class Af_RedditImgur extends Plugin {
private $host;
function about() {
return array(1.0,
"Inline image links in Reddit RSS feeds",
"fox");
}
function init($host) {
$this->host = $host;
$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
}
function hook_article_filter($article) {
if (strpos($article["link"], "reddit.com/r/") !== FALSE) {
$doc = new DOMDocument();
@$doc->loadHTML($article["content"]);
if ($doc) {
$xpath = new DOMXPath($doc);
$entries = $xpath->query('(//a[@href]|//img[@src])');
$found = false;
foreach ($entries as $entry) {
if ($entry->hasAttribute("href")) {
if (preg_match("/\.(gifv)$/i", $entry->getAttribute("href"))) {
$gifv_meta = fetch_file_contents($entry->getAttribute("href"),
false, false, false, false, 10);
if ($gifv_meta) {
$adoc = new DOMDocument();
@$adoc->loadHTML($gifv_meta);
if ($adoc) {
$axpath = new DOMXPath($adoc);
$aentries = $axpath->query('(//meta)');
$width = false;
$height = false;
foreach ($aentries as $aentry) {
if (strpos($aentry->getAttribute("property"), "og:image:width") !== FALSE) {
$width = $aentry->getAttribute("content");
}
if (strpos($aentry->getAttribute("property"), "og:image:height") !== FALSE) {
$height = $aentry->getAttribute("content");
}
}
}
}
if ($width && $height) {
$iframe = $doc->createElement('iframe');
$iframe->setAttribute("src", str_replace("http:", "", $entry->getAttribute("href")));
$iframe->setAttribute("frameborder", "0");
$iframe->setAttribute("width", $width);
$iframe->setAttribute("height", $height);
$br = $doc->createElement('br');
$entry->parentNode->insertBefore($iframe, $entry);
$entry->parentNode->insertBefore($br, $entry);
// add empty img tag to disable display of attachment
$img = $doc->createElement('img');
$img->setAttribute("src", "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs%3D");
$img->setAttribute("width", "0");
$img->setAttribute("height", "0");
$entry->parentNode->insertBefore($img, $entry);
$found = true;
}
}
if (preg_match("/\.(jpg|jpeg|gif|png)$/i", $entry->getAttribute("href"))) {
$img = $doc->createElement('img');
$img->setAttribute("src", $entry->getAttribute("href"));
$br = $doc->createElement('br');
$entry->parentNode->insertBefore($img, $entry);
$entry->parentNode->insertBefore($br, $entry);
$found = true;
}
// links to imgur pages
$matches = array();
if (preg_match("/^https?:\/\/imgur.com\/([^\.\/]+$)/", $entry->getAttribute("href"), $matches)) {
$token = $matches[1];
$album_content = fetch_file_contents($entry->getAttribute("href"),
false, false, false, false, 10);
if ($album_content && $token) {
$adoc = new DOMDocument();
@$adoc->loadHTML($album_content);
if ($adoc) {
$axpath = new DOMXPath($adoc);
$aentries = $axpath->query('(//img[@src])');
foreach ($aentries as $aentry) {
if (preg_match("/\/\/i.imgur.com\/$token\./", $aentry->getAttribute("src"))) {
$img = $doc->createElement('img');
$img->setAttribute("src", $aentry->getAttribute("src"));
$br = $doc->createElement('br');
$entry->parentNode->insertBefore($img, $entry);
$entry->parentNode->insertBefore($br, $entry);
$found = true;
break;
}
}
}
}
}
// linked albums, ffs
if (preg_match("/^https?:\/\/imgur.com\/(a|album)\/[^\.]+$/", $entry->getAttribute("href"), $matches)) {
$album_content = fetch_file_contents($entry->getAttribute("href"),
false, false, false, false, 10);
if ($album_content) {
$adoc = new DOMDocument();
@$adoc->loadHTML($album_content);
if ($adoc) {
$axpath = new DOMXPath($adoc);
$aentries = $axpath->query("//meta[@property='og:image']");
foreach ($aentries as $aentry) {
$img = $doc->createElement('img');
$img->setAttribute("src", $aentry->getAttribute("content"));
$entry->parentNode->insertBefore($doc->createElement('br'), $entry);
$br = $doc->createElement('br');
$entry->parentNode->insertBefore($img, $entry);
$entry->parentNode->insertBefore($br, $entry);
$found = true;
}
}
}
}
}
// remove tiny thumbnails
if ($entry->hasAttribute("src")) {
if ($entry->parentNode && $entry->parentNode->parentNode) {
$entry->parentNode->parentNode->removeChild($entry->parentNode);
}
}
}
$node = $doc->getElementsByTagName('body')->item(0);
if ($node && $found) {
$article["content"] = $doc->saveXML($node);
}
}
}
return $article;
}
function api_version() {
return 2;
}
}
?>