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shimmie2/ext/rss_images/main.php

115 lines
3.4 KiB
PHP

<?php
/*
* Name: RSS for Images
* Author: Shish <webmaster@shishnet.org>
* Link: http://code.shishnet.org/shimmie2/
* License: GPLv2
* Description: Self explanatory
*/
class RSS_Images extends Extension {
public function onPostListBuilding(PostListBuildingEvent $event) {
global $config, $page;
$title = $config->get_string('title');
if(count($event->search_terms) > 0) {
$search = html_escape(implode(' ', $event->search_terms));
$page->add_html_header("<link id=\"images\" rel=\"alternate\" type=\"application/rss+xml\" ".
"title=\"$title - Images with tags: $search\" href=\"".make_link("rss/images/$search/1")."\" />");
}
else {
$page->add_html_header("<link id=\"images\" rel=\"alternate\" type=\"application/rss+xml\" ".
"title=\"$title - Images\" href=\"".make_link("rss/images/1")."\" />");
}
}
public function onPageRequest(PageRequestEvent $event) {
if($event->page_matches("rss/images")) {
$search_terms = $event->get_search_terms();
$page_number = $event->get_page_number();
$page_size = $event->get_page_size();
$images = Image::find_images(($page_number-1)*$page_size, $page_size, $search_terms);
$this->do_rss($images, $search_terms, $page_number);
}
}
private function do_rss($images, $search_terms, /*int*/ $page_number) {
global $page;
global $config;
$page->set_mode("data");
$page->set_type("application/rss+xml");
$data = "";
foreach($images as $image) {
$data .= $this->thumb($image);
}
$title = $config->get_string('title');
$base_href = make_http(get_base_href());
$search = "";
if(count($search_terms) > 0) {
$search = url_escape(implode(" ", $search_terms)) . "/";
}
if($page_number > 1) {
$prev_url = make_link("rss/images/$search".($page_number-1));
$prev_link = "<atom:link rel=\"previous\" href=\"$prev_url\" />";
}
else {
$prev_link = "";
}
$next_url = make_link("rss/images/$search".($page_number+1));
$next_link = "<atom:link rel=\"next\" href=\"$next_url\" />"; // no end...
$version = VERSION;
$xml = "<"."?xml version=\"1.0\" encoding=\"utf-8\" ?".">
<rss version=\"2.0\" xmlns:media=\"http://search.yahoo.com/mrss\" xmlns:atom=\"http://www.w3.org/2005/Atom\">
<channel>
<title>$title</title>
<description>The latest uploads to the image board</description>
<link>$base_href</link>
<generator>Shimmie-$version</generator>
<copyright>(c) 2007 Shish</copyright>
$prev_link
$next_link
$data
</channel>
</rss>";
$page->set_data($xml);
}
private function thumb(Image $image) {
global $database;
$cached = $database->cache->get("rss-thumb:{$image->id}");
if($cached) return $cached;
$link = make_http(make_link("post/view/{$image->id}"));
$tags = html_escape($image->get_tag_list());
$owner = $image->get_owner();
$thumb_url = $image->get_thumb_link();
$image_url = $image->get_image_link();
$posted = date(DATE_RSS, $image->posted_timestamp);
$content = html_escape(
"<p>" . $this->theme->build_thumb_html($image) . "</p>" .
"<p>Uploaded by " . html_escape($owner->name) . "</p>"
);
$data = "
<item>
<title>{$image->id} - $tags</title>
<link>$link</link>
<guid isPermaLink=\"true\">$link</guid>
<pubDate>$posted</pubDate>
<description>$content</description>
<media:thumbnail url=\"$thumb_url\"/>
<media:content url=\"$image_url\"/>
</item>
";
$database->cache->set("rss-thumb:{$image->id}", $data, 3600);
return $data;
}
}
?>