mirror of
https://github.com/jasm1nii/xml-feed-generator.git
synced 2025-11-04 08:58:35 +00:00
109 lines
4.9 KiB
PHP
109 lines
4.9 KiB
PHP
<?php
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// work in progress!!
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// create beginning of feed template.
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// reference for required elements: https://validator.w3.org/feed/docs/atom.html
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ob_start();
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date_default_timezone_set("Asia/Jakarta");
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echo '<?xml version="1.0" encoding="utf-8"?>'
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.'<feed xmlns="http://www.w3.org/2005/Atom">'
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// optionally specify feed generator for debugging purposes.
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.'<generator version="1.0">jasmine's PHP feed generator!! | last modified by system at ' . strtoupper(date("h:i:sa")) . ' (GMT+7)</generator>'
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.'<title>jasmine's b(rain)log | jasm1nii.xyz</title>'
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.'<subtitle>blog articles by jasmine</subtitle>'
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.'<id>https://jasm1nii.xyz/blog/articles</id>';
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echo '<link rel="self" href="https://jasm1nii.xyz/blog/articles/articles.xml" type="application/atom+xml"/>';
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echo '<link rel="alternate" href="https://jasm1nii.xyz/blog/articles" type="text/html"/>';
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// define path to fetch pages from.
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$root = dirname(__DIR__, 2);
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$blog = $root.'/blog/articles';
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// force libxml to parse all HTML elements, including HTML 5. by default, the extension can only read valid HTML 4.
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libxml_use_internal_errors(true);
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// match feed update time with the newest entry.
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// i'm personally not using the system modification time to avoid sending uneccessary notifications to feed readers.
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$article_list = glob($blog.'/*/*/*/*.html');
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$first_article = array_pop($article_list);
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$first_article_content = file_get_contents($first_article);
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$first_article_dom = new DOMDocument;
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$first_article_dom->loadHTML($first_article_content);
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$feed_updated = $first_article_dom->getElementsByTagName('time');
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foreach ($feed_updated as $feed_updated_text) {
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echo '<updated>' . $feed_updated_text->getAttribute('datetime') . 'T00:00:00+07:00</updated>';
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}
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// rest of the template.
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echo '<author>'
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.'<name>jasmine</name>'
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.'<email>contact@jasm1nii.xyz</email>'
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.'<uri>https://jasm1nii.xyz/</uri>'
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.'</author>'
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.'<icon>https://jasm1nii.xyz/assets/media/itchio-textless-white.svg</icon>'
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.'<logo>https://jasm1nii.xyz/assets/media/main/07042023-me_compressed.webp</logo>';
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// output entries.
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$i = 0;
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foreach (array_reverse(glob($blog.'/*/*/*/*.html')) as $article) {
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$article_content = file_get_contents($article);
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$article_dom = new DOMDocument;
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$article_dom->loadHTML($article_content);
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echo '<entry>';
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// title
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$title = $article_dom->getElementsByTagName('h2');
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foreach ($title as $title_text) {
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echo '<title>'.$title_text->nodeValue.'</title>';
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}
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// id
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echo '<id>https://jasm1nii.xyz/blog/articles/' . ltrim($article, $blog) . '</id>';
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// alternate link
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echo '<link rel="alternate" type="text/html" href="https://jasm1nii.xyz/blog/articles/' . ltrim($article, $blog) . '"/>';
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$updated = $article_dom->getElementsByTagName('time');
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$t = 0;
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foreach ($updated as $updated_text) {
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echo '<updated>' . $updated_text->getAttribute('datetime') . 'T00:00:00+07:00</updated>';
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if(++$t > 0) break;
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}
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// summary
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$x = new DOMXPath($article_dom);
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$summary_class = 'p-summary';
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$summary = $x->query("//*[@class='" . $summary_class . "']");
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if ($summary->length > 0) {
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echo '<summary type="html">';
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echo $summary->item(0)->nodeValue;
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echo '</summary>';
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}
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// content
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// HTML entities must be escaped - note that XML only defines five of them.
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// reference: https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references
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$content_class = 'e-content';
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$content = $x->query("//*[@class='" . $content_class . "']");
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if ($content->length > 0) {
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echo '<content type="html">' . preg_replace('/\s\s+/', ' ',(substr($content->item(0)->nodeValue,0,500))) . '... (<a href="https://jasm1nii.xyz/blog/articles/' . ltrim($article, $blog) . '">read more</a>)' . '</content>';
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} else {
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// fallback for older markup
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$content_class = 'entry';
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$content = $x->query("//*[@class='" . $content_class . "']");
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if ($content->length >= 0) {
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echo '<content type="html">' . 'whoops - this page contains markup that can't be parsed for feed-reader friendliness. read more on the website!' . '</content>';
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}
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}
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echo '</entry>';
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if(++$i > 9) break;
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}
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echo '</feed>';
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$xml_str = ob_get_contents();
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ob_end_clean();
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file_put_contents($blog.'/articles.xml', $xml_str);
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?>
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