mirror of
https://github.com/RSS-Bridge/rss-bridge.git
synced 2024-11-23 01:55:27 +03:00
27b3d7c34e
* feat: improve logging and error handling * trim absolute path from file name * fix: suppress php errors from xml parsing * fix: respect the error reporting level in the custom error handler * feat: dont log error which is produced by bots * ignore error about invalid bridge name * upgrade bridge exception from warning to error * remove remnants of using phps builin error handler * move responsibility of printing php error from logger to error handler * feat: include url in log record context * fix: always include url in log record contect Also ignore more non-interesting exceptions. * more verbose httpexception * fix * fix
192 lines
7.3 KiB
PHP
192 lines
7.3 KiB
PHP
<?php
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/**
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* AtomFormat - RFC 4287: The Atom Syndication Format
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* https://tools.ietf.org/html/rfc4287
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*
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* Validator:
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* https://validator.w3.org/feed/
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*/
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class AtomFormat extends FormatAbstract
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{
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const MIME_TYPE = 'application/atom+xml';
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protected const ATOM_NS = 'http://www.w3.org/2005/Atom';
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protected const MRSS_NS = 'http://search.yahoo.com/mrss/';
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const LIMIT_TITLE = 140;
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public function stringify()
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{
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$feedUrl = get_current_url();
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$extraInfos = $this->getExtraInfos();
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if (empty($extraInfos['uri'])) {
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$uri = REPOSITORY;
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} else {
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$uri = $extraInfos['uri'];
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}
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$document = new \DomDocument('1.0', $this->getCharset());
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$document->formatOutput = true;
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$feed = $document->createElementNS(self::ATOM_NS, 'feed');
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$document->appendChild($feed);
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$feed->setAttributeNS('http://www.w3.org/2000/xmlns/', 'xmlns:media', self::MRSS_NS);
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$title = $document->createElement('title');
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$feed->appendChild($title);
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$title->setAttribute('type', 'text');
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$title->appendChild($document->createTextNode($extraInfos['name']));
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$id = $document->createElement('id');
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$feed->appendChild($id);
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$id->appendChild($document->createTextNode($feedUrl));
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$uriparts = parse_url($uri);
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if (empty($extraInfos['icon'])) {
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$iconUrl = $uriparts['scheme'] . '://' . $uriparts['host'] . '/favicon.ico';
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} else {
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$iconUrl = $extraInfos['icon'];
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}
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$icon = $document->createElement('icon');
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$feed->appendChild($icon);
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$icon->appendChild($document->createTextNode($iconUrl));
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$logo = $document->createElement('logo');
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$feed->appendChild($logo);
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$logo->appendChild($document->createTextNode($iconUrl));
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$feedTimestamp = gmdate(DATE_ATOM, $this->lastModified);
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$updated = $document->createElement('updated');
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$feed->appendChild($updated);
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$updated->appendChild($document->createTextNode($feedTimestamp));
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// since we can't guarantee that all items have an author,
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// a global feed author is mandatory
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$feedAuthor = 'RSS-Bridge';
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$author = $document->createElement('author');
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$feed->appendChild($author);
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$authorName = $document->createElement('name');
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$author->appendChild($authorName);
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$authorName->appendChild($document->createTextNode($feedAuthor));
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$linkAlternate = $document->createElement('link');
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$feed->appendChild($linkAlternate);
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$linkAlternate->setAttribute('rel', 'alternate');
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$linkAlternate->setAttribute('type', 'text/html');
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$linkAlternate->setAttribute('href', $uri);
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$linkSelf = $document->createElement('link');
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$feed->appendChild($linkSelf);
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$linkSelf->setAttribute('rel', 'self');
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$linkSelf->setAttribute('type', 'application/atom+xml');
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$linkSelf->setAttribute('href', $feedUrl);
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foreach ($this->getItems() as $item) {
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$entryTimestamp = $item->getTimestamp();
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$entryTitle = $item->getTitle();
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$entryContent = $item->getContent();
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$entryUri = $item->getURI();
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$entryID = '';
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if (!empty($item->getUid())) {
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$entryID = 'urn:sha1:' . $item->getUid();
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}
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if (empty($entryID)) {
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// Fallback to provided URI
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$entryID = $entryUri;
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}
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if (empty($entryID)) {
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// Fallback to title and content
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$entryID = 'urn:sha1:' . hash('sha1', $entryTitle . $entryContent);
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}
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if (empty($entryTimestamp)) {
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$entryTimestamp = $this->lastModified;
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}
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if (empty($entryTitle)) {
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$entryTitle = str_replace("\n", ' ', strip_tags($entryContent));
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if (strlen($entryTitle) > self::LIMIT_TITLE) {
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$wrapPos = strpos(wordwrap($entryTitle, self::LIMIT_TITLE), "\n");
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$entryTitle = substr($entryTitle, 0, $wrapPos) . '...';
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}
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}
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if (empty($entryContent)) {
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$entryContent = ' ';
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}
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$entry = $document->createElement('entry');
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$feed->appendChild($entry);
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$title = $document->createElement('title');
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$entry->appendChild($title);
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$title->setAttribute('type', 'html');
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$title->appendChild($document->createTextNode($entryTitle));
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$entryTimestamp = gmdate(\DATE_ATOM, $entryTimestamp);
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$published = $document->createElement('published');
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$entry->appendChild($published);
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$published->appendChild($document->createTextNode($entryTimestamp));
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$updated = $document->createElement('updated');
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$entry->appendChild($updated);
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$updated->appendChild($document->createTextNode($entryTimestamp));
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$id = $document->createElement('id');
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$entry->appendChild($id);
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$id->appendChild($document->createTextNode($entryID));
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if (!empty($entryUri)) {
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$entryLinkAlternate = $document->createElement('link');
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$entry->appendChild($entryLinkAlternate);
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$entryLinkAlternate->setAttribute('rel', 'alternate');
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$entryLinkAlternate->setAttribute('type', 'text/html');
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$entryLinkAlternate->setAttribute('href', $entryUri);
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}
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if (!empty($item->getAuthor())) {
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$author = $document->createElement('author');
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$entry->appendChild($author);
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$authorName = $document->createElement('name');
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$author->appendChild($authorName);
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$authorName->appendChild($document->createTextNode($item->getAuthor()));
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}
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$content = $document->createElement('content');
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$content->setAttribute('type', 'html');
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$content->appendChild($document->createTextNode(sanitize_html($entryContent)));
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$entry->appendChild($content);
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foreach ($item->getEnclosures() as $enclosure) {
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$entryEnclosure = $document->createElement('link');
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$entry->appendChild($entryEnclosure);
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$entryEnclosure->setAttribute('rel', 'enclosure');
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$entryEnclosure->setAttribute('type', parse_mime_type($enclosure));
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$entryEnclosure->setAttribute('href', $enclosure);
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}
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foreach ($item->getCategories() as $category) {
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$entryCategory = $document->createElement('category');
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$entry->appendChild($entryCategory);
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$entryCategory->setAttribute('term', $category);
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}
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if (!empty($item->thumbnail)) {
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$thumbnail = $document->createElementNS(self::MRSS_NS, 'thumbnail');
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$entry->appendChild($thumbnail);
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$thumbnail->setAttribute('url', $item->thumbnail);
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}
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}
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$toReturn = $document->saveXML();
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// Remove invalid characters
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ini_set('mbstring.substitute_character', 'none');
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$toReturn = mb_convert_encoding($toReturn, $this->getCharset(), 'UTF-8');
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return $toReturn;
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}
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}
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