Mercurial > addons > firefox-addons > feed-preview
diff js/feed-parser.js @ 19:3fcd2209b39a
Add support for RSS 1.0 feeds
author | Guido Berhoerster <guido+feed-preview@berhoerster.name> |
---|---|
date | Thu, 13 Dec 2018 09:02:40 +0100 |
parents | 15db49e77deb |
children | da483ce3832d |
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--- a/js/feed-parser.js Thu Dec 13 08:47:06 2018 +0100 +++ b/js/feed-parser.js Thu Dec 13 09:02:40 2018 +0100 @@ -12,6 +12,7 @@ ATOM03: 'http://purl.org/atom/ns#', ATOM10: 'http://www.w3.org/2005/Atom', RSS09: 'http://my.netscape.com/rdf/simple/0.9/', + RSS10: 'http://purl.org/rss/1.0/', XHTML: 'http://www.w3.org/1999/xhtml', PARSERERROR: 'http://www.mozilla.org/newlayout/xml/parsererror.xml' } @@ -70,8 +71,10 @@ return XMLNS.ATOM03; case 'atom': return XMLNS.ATOM10; - case 'rss': + case 'rss09': return XMLNS.RSS09; + case 'rss10': + return XMLNS.RSS10; } return null; } @@ -214,6 +217,9 @@ } else if (documentElement.localName.toLowerCase() === 'rdf' && documentElement.getAttribute('xmlns') === XMLNS.RSS09) { return ['rss', '0.9']; + } else if (documentElement.localName.toLowerCase() === 'rdf' && + documentElement.getAttribute('xmlns') === XMLNS.RSS10) { + return ['rss', '1.0']; } return [undefined, undefined]; @@ -588,10 +594,10 @@ return new Feed(this.url, {title, subtitle, logo, entries}); } - parseRSS1Logo(imageElement) { + parseRSS1Logo(imageElement, nsPrefix) { let title; let urlElement = feedQueryXPath(this.document, imageElement, - './rss:url'); + `./${nsPrefix}:url`); if (urlElement === null) { throw new TypeError('missing <url> element in <logo> element'); } @@ -601,7 +607,7 @@ } let titleElement = feedQueryXPath(this.document, imageElement, - './rss:title'); + `./${nsPrefix}:title`); if (titleElement !== null) { title = titleElement.textContent.trim(); } @@ -609,17 +615,17 @@ return new FeedLogo(url, {title}); } - parseRSS1Entry(itemElement) { + parseRSS1Entry(itemElement, nsPrefix) { let title; let link; let titleElement = feedQueryXPath(this.document, itemElement, - './rss:title'); + `./${nsPrefix}:title`); if (titleElement !== null) { title = titleElement.textContent; } let linkElement = feedQueryXPath(this.document, itemElement, - './rss:link'); + `./${nsPrefix}:link`); if (linkElement !== null) { link = parseURL(linkElement.textContent, this.url); } @@ -627,29 +633,30 @@ return new FeedEntry({title, link}); } - parseRSS1Feed() { + parseRSS1Feed(version) { + let nsPrefix = version === '0.9' ? 'rss09' : 'rss10'; let title; let subtitle; let logo; let entries = []; let documentElement = this.document.documentElement; let titleElement = feedQueryXPath(this.document, documentElement, - './rss:channel/rss:title'); + `./${nsPrefix}:channel/${nsPrefix}:title`); if (titleElement !== null) { title = titleElement.textContent; } let descriptionElement = feedQueryXPath(this.document, documentElement, - './rss:channel/rss:description'); + `./${nsPrefix}:channel/${nsPrefix}:description`); if (descriptionElement !== null) { subtitle = descriptionElement.textContent; } let imageElement = feedQueryXPath(this.document, documentElement, - './rss:image'); + `./${nsPrefix}:image`); if (imageElement !== null) { try { - logo = this.parseRSS1Logo(imageElement); + logo = this.parseRSS1Logo(imageElement, nsPrefix); } catch (e) { if (!(e instanceof TypeError)) { throw e; @@ -658,9 +665,9 @@ } let itemElements = feedQueryXPathAll(this.document, documentElement, - './rss:item'); + `./${nsPrefix}:item`); for (let itemElement of itemElements) { - let entry = this.parseRSS1Entry(itemElement); + let entry = this.parseRSS1Entry(itemElement, nsPrefix); if (typeof entry !== 'undefined') { entries.push(entry); } @@ -813,8 +820,8 @@ return this.parseAtomFeed(); } } else if (type === 'rss') { - if (version === '0.9') { - return this.parseRSS1Feed(); + if (version === '0.9' || version === '1.0') { + return this.parseRSS1Feed(version); } else { return this.parseRSS2Feed(); }