mirror of
https://github.com/TryGhost/Ghost.git
synced 2024-12-22 10:21:36 +03:00
2dc6f30f11
no issue - initial report https://forum.ghost.org/t/rss-feed-stopped-working/9874 - `htmlRelativeToAbsolute` will return `null` if `null` is passed into it but `cheerio.load(null)` will throw a "Cannot read property 'parent' of null" error so we need to ensure we at least load an empty string
102 lines
3.1 KiB
JavaScript
102 lines
3.1 KiB
JavaScript
var downsize = require('downsize'),
|
|
Promise = require('bluebird'),
|
|
cheerio = require('cheerio'),
|
|
RSS = require('rss'),
|
|
urlUtils = require('../../../server/lib/url-utils'),
|
|
urlService = require('../url'),
|
|
generateFeed,
|
|
generateItem,
|
|
generateTags;
|
|
|
|
generateTags = function generateTags(data) {
|
|
if (data.tags) {
|
|
return data.tags.reduce(function (tags, tag) {
|
|
if (tag.visibility !== 'internal') {
|
|
tags.push(tag.name);
|
|
}
|
|
return tags;
|
|
}, []);
|
|
}
|
|
|
|
return [];
|
|
};
|
|
|
|
generateItem = function generateItem(post, secure) {
|
|
const itemUrl = urlService.getUrlByResourceId(post.id, {secure, absolute: true});
|
|
const htmlContent = cheerio.load(urlUtils.htmlRelativeToAbsolute(post.html, itemUrl, {secure}) || '', {decodeEntities: false});
|
|
const item = {
|
|
title: post.title,
|
|
// @TODO: DRY this up with data/meta/index & other excerpt code
|
|
description: post.custom_excerpt || post.meta_description || downsize(htmlContent.html(), {words: 50}),
|
|
guid: post.id,
|
|
url: itemUrl,
|
|
date: post.published_at,
|
|
categories: generateTags(post),
|
|
author: post.primary_author ? post.primary_author.name : null,
|
|
custom_elements: []
|
|
};
|
|
|
|
if (post.feature_image) {
|
|
const imageUrl = urlUtils.urlFor('image', {image: post.feature_image, secure}, true);
|
|
|
|
// Add a media content tag
|
|
item.custom_elements.push({
|
|
'media:content': {
|
|
_attr: {
|
|
url: imageUrl,
|
|
medium: 'image'
|
|
}
|
|
}
|
|
});
|
|
|
|
// Also add the image to the content, because not all readers support media:content
|
|
htmlContent('p').first().before('<img src="' + imageUrl + '" />');
|
|
htmlContent('img').attr('alt', post.title);
|
|
}
|
|
|
|
item.custom_elements.push({
|
|
'content:encoded': {
|
|
_cdata: htmlContent.html()
|
|
}
|
|
});
|
|
|
|
return item;
|
|
};
|
|
|
|
/**
|
|
* Generate Feed
|
|
*
|
|
* Data is an object which contains the res.locals + results from fetching a collection, but without related data.
|
|
*
|
|
* @param {string} baseUrl
|
|
* @param {{title, description, safeVersion, secure, posts}} data
|
|
*/
|
|
generateFeed = function generateFeed(baseUrl, data) {
|
|
const {secure} = data;
|
|
|
|
const feed = new RSS({
|
|
title: data.title,
|
|
description: data.description,
|
|
generator: 'Ghost ' + data.safeVersion,
|
|
feed_url: urlUtils.urlFor({relativeUrl: baseUrl, secure}, true),
|
|
site_url: urlUtils.urlFor('home', {secure}, true),
|
|
image_url: urlUtils.urlFor({relativeUrl: 'favicon.png'}, true),
|
|
ttl: '60',
|
|
custom_namespaces: {
|
|
content: 'http://purl.org/rss/1.0/modules/content/',
|
|
media: 'http://search.yahoo.com/mrss/'
|
|
}
|
|
});
|
|
|
|
return data.posts.reduce((feedPromise, post) => {
|
|
return feedPromise.then(() => {
|
|
const item = generateItem(post, secure);
|
|
return feed.item(item);
|
|
});
|
|
}, Promise.resolve()).then(() => {
|
|
return feed.xml();
|
|
});
|
|
};
|
|
|
|
module.exports = generateFeed;
|