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