mirror of
https://github.com/TryGhost/Ghost.git
synced 2024-12-30 14:22:07 +03:00
a6f5eb71be
closes https://github.com/TryGhost/Team/issues/467 - switches to storing "transform-ready" URLs in the database - transform-ready URLs contain a `__GHOST_URL__` placeholder that corresponds to the configured url that gives a few benefits - much faster and less memory intensive output transformations through not needing to parse html or markdown - the transform can be achieved using a straightforward regex find+replace - ability to change to/from or rename subdirectory without any manual updates to the database - modified existing 4.0 url-transformation migration rather than adding another one and repeating the transformation on posts rows
99 lines
3.0 KiB
JavaScript
99 lines
3.0 KiB
JavaScript
const downsize = require('downsize');
|
|
const Promise = require('bluebird');
|
|
const cheerio = require('cheerio');
|
|
const RSS = require('rss');
|
|
const urlUtils = require('../../../shared/url-utils');
|
|
const urlService = require('../url');
|
|
|
|
const 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 [];
|
|
};
|
|
|
|
const generateItem = function generateItem(post, secure) {
|
|
const itemUrl = urlService.getUrlByResourceId(post.id, {secure, absolute: true});
|
|
const htmlContent = cheerio.load(post.html || '');
|
|
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
|
|
*/
|
|
const 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;
|