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e41d0c76fb
refs #9192, refs #5091 - Moved all url generation into generate-feed.js, so we can see as much data processing as possible in a single place. - Refactored the way res.locals were used, to be more like how express uses them prior to rendering - Removed a bunch of code & tests todo with context for RSS - I can't see any way that'd be used, unless we switched the rendering to use a template. - moved the RSS rendering to be part of the service, not controller - updated the tests significantly Note: RSS generate-feed has a complete duplication of the code used in the excerpt helper in order to create an item description
106 lines
3.2 KiB
JavaScript
106 lines
3.2 KiB
JavaScript
var downsize = require('downsize'),
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RSS = require('rss'),
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utils = require('../../utils'),
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filters = require('../../filters'),
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processUrls = require('../../utils/make-absolute-urls'),
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generateFeed,
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generateItem,
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generateTags;
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generateTags = function generateTags(data) {
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if (data.tags) {
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return data.tags.reduce(function (tags, tag) {
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if (tag.visibility !== 'internal') {
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tags.push(tag.name);
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}
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return tags;
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}, []);
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}
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return [];
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};
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generateItem = function generateItem(post, siteUrl, secure) {
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var itemUrl = utils.url.urlFor('post', {post: post, secure: secure}, true),
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htmlContent = processUrls(post.html, siteUrl, itemUrl),
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item = {
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title: post.title,
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// @TODO: DRY this up with data/meta/index & other excerpt code
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description: post.custom_excerpt || post.meta_description || downsize(htmlContent.html(), {words: 50}),
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guid: post.id,
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url: itemUrl,
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date: post.published_at,
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categories: generateTags(post),
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author: post.author ? post.author.name : null,
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custom_elements: []
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},
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imageUrl;
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if (post.feature_image) {
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imageUrl = utils.url.urlFor('image', {image: post.feature_image, secure: secure}, true);
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// Add a media content tag
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item.custom_elements.push({
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'media:content': {
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_attr: {
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url: imageUrl,
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medium: 'image'
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}
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}
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});
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// Also add the image to the content, because not all readers support media:content
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htmlContent('p').first().before('<img src="' + imageUrl + '" />');
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htmlContent('img').attr('alt', post.title);
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}
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item.custom_elements.push({
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'content:encoded': {
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_cdata: htmlContent.html()
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}
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});
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return item;
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};
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/**
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* Generate Feed
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*
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* Data is an object which contains the res.locals + results from fetching a channel, but without related data.
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*
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* @param {string} baseUrl
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* @param {{title, description, safeVersion, secure, posts}} data
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*/
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generateFeed = function generateFeed(baseUrl, data) {
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var siteUrl = utils.url.urlFor('home', {secure: data.secure}, true),
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feedUrl = utils.url.urlFor({relativeUrl: baseUrl, secure: data.secure}, true),
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feed = new RSS({
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title: data.title,
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description: data.description,
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generator: 'Ghost ' + data.safeVersion,
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feed_url: feedUrl,
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site_url: siteUrl,
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image_url: utils.url.urlFor({relativeUrl: 'favicon.png'}, true),
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ttl: '60',
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custom_namespaces: {
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content: 'http://purl.org/rss/1.0/modules/content/',
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media: 'http://search.yahoo.com/mrss/'
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}
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});
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data.posts.forEach(function forEach(post) {
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var item = generateItem(post, siteUrl, data.secure);
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filters.doFilter('rss.item', item, post).then(function then(item) {
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feed.item(item);
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});
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});
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return filters.doFilter('rss.feed', feed).then(function then(feed) {
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return feed.xml();
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});
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};
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module.exports = generateFeed;
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