mirror of
https://github.com/georgemandis/bubo-rss.git
synced 2024-11-22 20:04:22 +00:00
George Mandis
GitHub
parent
78250bd9a2
commit
c9e98d79b6
50
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{
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"env": {
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"browser": true,
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"es2021": true
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"extends": [
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"eslint:recommended",
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"plugin:@typescript-eslint/recommended"
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],
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"parser": "@typescript-eslint/parser",
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"parserOptions": {
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"ecmaVersion": 6,
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"sourceType": "module"
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},
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"plugins": [
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"@typescript-eslint"
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"unix"
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"quotes": [
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"error",
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"double"
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"semi": [
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"error",
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"always"
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"no-trailing-spaces": [
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"skipBlankLines": false
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"max": 2,
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"@typescript-eslint/no-var-requires": 0
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}
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}
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4
.gitignore
vendored
4
.gitignore
vendored
@ -1,2 +1,4 @@
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node_modules/*
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output/index.html
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public/index.html
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dist/*
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.DS_Store
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88
README.md
88
README.md
@ -1,18 +1,69 @@
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# 🦉 Bubo Reader
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# 🦉 Bubo Reader (2.0)
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Bubo Reader is a hyper-minimalist <acronym title="Really Simple Syndication">RSS</acronym> and <acronym title="JavaScript Object Notation">JSON</acronym> feed reader you can deploy on your own server, [Netlify](https://netlify.com) in a few steps or [Glitch](https://glitch.com) in even fewer steps! The goal of the project is to generate a webpage that shows a list of links from a collection of feeds organized by category and website. That's it.
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It is named after this [silly robot owl](https://www.youtube.com/watch?v=MYSeCfo9-NI) from Clash of the Titans (1981).
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You can read more about how this project came about in my blog post '[Introducing Bubo RSS: An Absurdly Minimalist RSS Feed Reader](https://george.mand.is/2019/11/introducing-bubo-rss-an-absurdly-minimalist-rss-feed-reader/)'
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You can read more about how this project came about on my blog:
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- [Introducing Bubo RSS: An Absurdly Minimalist RSS Feed Reader](https://george.mand.is/2019/11/introducing-bubo-rss-an-absurdly-minimalist-rss-feed-reader/).
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## Getting Started
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- Clone or fork the repo and run `npm install` to install the dependencies.
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- Update `feeds.json` to include categories and links to feeds you would like to see.
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- Run `npm run build:bubo`
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That's it! You should now have a static page with links to the latest content from your feeds in the `public` folder, ready to serve.
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## Differences in Bubo 2.0
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Version 2.0 has introduced some substantial changes for Bubo! While the static output remains endearingly spartan, the engine that builds it has changed a bit.
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Hopefully all of these changes are in services of making this project more useful to others and encouraging outside contributions.
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Changes of note:
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- Bubo has been rewritten in [TypeScript](https://www.typescriptlang.org/). It's pretty slick! I anticipate the typing could be improved, but it's a start.
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- You fill find an `.nvmrc` file in the root of this project. Learn more [about nvm](https://github.com/nvm-sh/nvm) if you're unfamiliar.
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- The script will actually write your `index.html` file for you (Previously the build script simply ran `node src/index.js > output/index.html`). It makes a strong assumption that this file lives in the `public` folder.
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- There is a somewhat sophisticated mechansim in-place for batching & throttling your requests, if needed.
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## Anatomy of Bubo Reader
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- `src/index.html` - a [Nunjucks](https://mozilla.github.io/nunjucks/) template that lets you change how the feeds are displayed
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- `output/style.css` - a CSS file to stylize your feed output
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- `src/feeds.json` - a JSON file containing the URLs for various site's feeds separated into categories
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- `src/index.js` - the script that loads the feeds and does the actual parsing and rendering
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The static pieces:
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- `conf/feeds.json` - a JSON file containing your feed URLS separated into categories.
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- `config/template.html` - a [Nunjucks](https://mozilla.github.io/nunjucks/) template that lets you change how the feeds are displayed. This can be changed to anything else you like— see below.
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- `public/style.css` - a CSS file to stylize your feed output.
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- `public/index.html` - The HTML file that gets automatically generated when Bubo is run.
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The engine:
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- `src/index.ts` - The primary script you run when you want to build a new version of Bubo. It will automatically fetch the latest content from your feeds and build a new static file at `public/index.html`.
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- `src/renderer.ts` — The renderer that loads Nunjucks, the template and understands how to process the incoming feed data. Prefer something else? This is the place to change it!
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- `src/utilities.ts` — A variety of parsing and normalization utilities for Bubo, hidden away to try and keep things clean.
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## Throttling
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In the main `index.ts` file you will find two values that allow yout to batch and throttle your feed requests:
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- `MAX_CONNECTIONS` dictates the maximium number of requests a batch can have going at once.
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- `DELAY_MS` dictates the amount of de;ay time between each batch.
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The default configuration is **no batching or throttling** beacuse `MAX_CONNECTIONS` is set to `Infinity`. If you wanted to change Bubo to only fetch one feed at a time every second you could set these values to:
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```javascript
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const MAX_CONNECTIONS = 1;
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const DELAY_MS = 1000;
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```
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If you wanted to limit things to 10 simultaneous requests every 2.5 seconds you could set it like so:
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```javascript
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const MAX_CONNECTIONS = 10;
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const DELAY_MS = 2500;
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```
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In practice, I've never _really_ run into an issue leaving `MAX_CONNECTIONS` set to `Infinity` but this feels like a sensible safeguard to design.
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## Demos
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You can view live demos here:
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@ -34,19 +85,14 @@ Not the most exciting-looking demos, I'll admit, but they work!
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The quickest way is to remix the project on Glitch:
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[https://glitch.com/edit/#!/bubo-rss](https://glitch.com/edit/#!/bubo-rss)
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Just changed some feeds in `./src/feeds.json` file and you're set! If you'd like to modify the style or the template you can changed `./output/style.css` file or the `./src/template.html` file respectively.
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There is also a special `glitch` branch you can clone if you prefer:
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[https://github.com/georgemandis/bubo-rss/tree/glitch](https://github.com/georgemandis/bubo-rss/tree/glitch)
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The only difference between this branch and `master` is that it spins up a server using [Express](https://expressjs.com/) to serve your `./output/index.html` file on Glitch. Everything else is the same.
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Just changed some feeds in `./config/feeds.json` file and you're set! If you'd like to modify the style or the template you can changed `./public/style.css` file or the `./config/template.html` file respectively.
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<a id="netlify"></a>
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## Deploying to Netlify
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- [Fork the repository](https://github.com/georgemandis/bubo-rss/fork)
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- From your forked repository go to and edit `src/feeds.json` to manage your feeds and categories
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- [Create a new site](https://app.netlify.com/start) on Netlify from GitHub
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- From your forked repository edit `config/feeds.json` to manage your feeds and categories
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- [Create a new site](https://app.netlify.com/start) on Netlify from GitHub
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The deploy settings should automatically import from the `netlify.toml` file. All you'll need to do is confirm and you're ready to go!
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@ -61,21 +107,19 @@ To keep your feeds up to date you'll want to [setup a Build Hook](https://www.ne
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- [Zapier](https://zapier.com/)
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- [EasyCron](https://www.easycron.com/)
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If you already have a server running Linux and some command-line experience it might be simpler to setup a [cron job](https://en.wikipedia.org/wiki/Cron).
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#### Using GitHub Actions
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This approach is a little different and requires some modifications to the repository. Netlify started billing for [build minutes](https://www.netlify.com/pricing/faq/) very shortly after I published this project. Running `npm build` and downloading all of the RSS feeds took up a substantial number of these, particularly if you had a process pinging the webhook and triggering a build every 15 minutes or so.
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Coming soon—there is an old branch that demonstrates this, but it needs to be revisisted in light of Bubo 2.0.
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How is the The GitHub Action-based approach different? The same build process runs, but this time it's on GitHub's servers via the Action. It then **commits** the newly created file generated at `./output/index.html` back into the repository. Netlify still gets pinged when the repository is updated, but skips the `npm run build` step on their end. This significantly reduces the number of build minutes required.
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#### Rolling Your Own
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**TLDR**: use the [`github-action-publishing`](https://github.com/georgemandis/bubo-rss/tree/github-action-publishing) branch for now if you'd prefer to use GitHub Actions.
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**Note:** The GitHub Action is setup to build and commit directly to the `master` branch, which is not the best practice. I'd suggest creating a separate branch to checkout and commit changes to in the action. You could then specify that same branch as the one to checkout and publish on Netlify.
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If you already have a server running Linux and some command-line experience it might be simpler to setup a [cron job](https://en.wikipedia.org/wiki/Cron).
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## Support
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||||
|
||||
If you found this useful please consider sponsoring me or this project. If you'd rather run this on your own server please consider using one of these affiliate links to setup a micro instance on [Linode](https://www.linode.com/?r=8729957ab02b50a695dcea12a5ca55570979d8b9), [Digital Ocean](https://m.do.co/c/31f58d367777) or [Vultr](https://www.vultr.com/?ref=8403978).
|
||||
If you found this useful please consider sponsoring me or this project.
|
||||
|
||||
If you'd rather run this on your own server please consider using one of these affiliate links to setup a micro instance on [Linode](https://www.linode.com/?r=8729957ab02b50a695dcea12a5ca55570979d8b9), [Digital Ocean](https://m.do.co/c/31f58d367777) or [Vultr](https://www.vultr.com/?ref=8403978).
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## Showcase
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@ -1,7 +1,6 @@
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{
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"Web Development": [
|
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"https://hacks.mozilla.org/feed/",
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"https://blog.mozilla.org/feed/",
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"https://hacks.mozilla.org/feed/",
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"https://web.dev/feed.xml",
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"https://v8.dev/blog.atom",
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"https://alistapart.com/main/feed/",
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||||
@ -18,8 +17,6 @@
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||||
"https://github.com/georgemandis/konami-js/releases.atom",
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||||
"https://github.com/georgemandis/konami-js/commits/main.atom",
|
||||
"https://github.com/javascriptforartists/cheer-me-up-and-sing-me-a-song/commits/master.atom",
|
||||
"https://github.com/georgemandis/circuit-playground-midi-multi-tool/commits/master.atom",
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||||
"https://github.com/georgemandis/remote-working-list/commits/master.atom",
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||||
"https://github.com/georgemandis/tweeter-totter/commits/master.atom"
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||||
"https://github.com/georgemandis/circuit-playground-midi-multi-tool/commits/master.atom"
|
||||
]
|
||||
}
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}
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@ -1,4 +1,4 @@
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[build]
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command = "npm run build"
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publish = "output/"
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publish = "public/"
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@ -1,30 +0,0 @@
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body {
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font-family:system-ui;
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font-size: 18px;
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}
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details:focus,
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details:focus-within,
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details:hover {
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/* background:#ffeb3b; */
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/* outline:2px #000 solid; */
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}
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details ul li {
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}
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summary {
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cursor:pointer;
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}
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summary:hover {
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opacity:.75;
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}
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.feed-url {
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color:#aaa;
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}
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2911
package-lock.json
generated
2911
package-lock.json
generated
File diff suppressed because it is too large
Load Diff
33
package.json
33
package.json
@ -1,17 +1,40 @@
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{
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"name": "bubo-reader",
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"version": "1.0.1",
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"version": "2.0.0",
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"description": "A simple but effective feed reader (RSS, JSON)",
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"main": "src/index.js",
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"type": "module",
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"scripts": {
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"build": "node src/index.js > output/index.html",
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"test": "echo \"Error: no test specified\" && exit 1"
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"dev": "tsc --watch",
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"clean": "rm -rf dist",
|
||||
"build": "tsc",
|
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"bubo": "node dist/index.js",
|
||||
"build:bubo": "tsc && node dist/index.js"
|
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},
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"author": {
|
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"name": "George Mandis",
|
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"email": "george@mand.is",
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"url": "https://george.mand.is"
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},
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"funding": {
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"type": "github",
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"url": "https://github.com/sponsors/georgemandis"
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},
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"author": "",
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"license": "ISC",
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"dependencies": {
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"node-fetch": "^2.6.1",
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"chalk": "^5.0.0",
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"node-fetch": "^3.1.0",
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"nunjucks": "^3.2.0",
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"rss-parser": "^3.6.3"
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},
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"devDependencies": {
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"@types/node": "^16.11.10",
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"@types/nunjucks": "^3.2.0",
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"@types/xml2js": "^0.4.9",
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"@typescript-eslint/eslint-plugin": "^5.4.0",
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"@typescript-eslint/parser": "^5.4.0",
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"eslint": "^8.3.0",
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"tslib": "^2.3.1",
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"typescript": "^4.5.2"
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}
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}
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28
public/style.css
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public/style.css
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body {
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font-family: system-ui;
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font-size: 18px;
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}
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details:focus,
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details:focus-within,
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details:hover {
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/* background:#ffeb3b; */
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/* outline:2px #000 solid; */
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}
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details ul li {}
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summary {
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cursor: pointer;
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}
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summary:hover {
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opacity: .75;
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}
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.feed-url {
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color: #aaa;
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}
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15
src/@types/bubo.d.ts
vendored
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15
src/@types/bubo.d.ts
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export interface Feeds {
|
||||
[key: string]: object[]
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}
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export interface FeedItem {
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[key: string]: string | number | Date | FeedItem[];
|
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items: FeedItem[]
|
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}
|
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|
||||
//NEW WAY
|
||||
export type JSONValue =
|
||||
| string
|
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| number
|
||||
| boolean
|
||||
| { [x: string]: JSONValue }
|
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| Array<JSONValue>;
|
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129
src/index.js
129
src/index.js
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/*
|
||||
* 🦉 Bubo RSS Reader
|
||||
* ====
|
||||
* Dead simple feed reader that renders an HTML
|
||||
* page with links to content from feeds organized by site
|
||||
*
|
||||
* Code: https://github.com/georgemandis/bubo-rss
|
||||
* Copyright (c) 2019 George Mandis (https://george.mand.is)
|
||||
* Version: 1.0.1 (11/14/2021)
|
||||
* Licensed under the MIT License (http://opensource.org/licenses/MIT)
|
||||
*/
|
||||
|
||||
const fetch = require("node-fetch");
|
||||
const Parser = require("rss-parser");
|
||||
const parser = new Parser();
|
||||
|
||||
const nunjucks = require("nunjucks");
|
||||
const env = nunjucks.configure({ autoescape: true });
|
||||
|
||||
const feeds = require("./feeds.json");
|
||||
|
||||
/**
|
||||
* Global filters for my Nunjucks templates
|
||||
*/
|
||||
env.addFilter("formatDate", function (dateString) {
|
||||
const formattedDate = new Date(dateString).toLocaleDateString()
|
||||
return formattedDate !== 'Invalid Date' ? formattedDate : dateString;
|
||||
});
|
||||
|
||||
env.addGlobal('now', (new Date()).toUTCString());
|
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|
||||
// parse RSS/XML or JSON feeds
|
||||
function parseFeed(response) {
|
||||
const contentType = response.headers.get("content-type")
|
||||
? response.headers.get("content-type").split(";")[0]
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||||
: false;
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||||
|
||||
const rssFeed = [contentType]
|
||||
.map(item =>
|
||||
[
|
||||
"application/atom+xml",
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||||
"application/rss+xml",
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||||
"application/xml",
|
||||
"text/xml",
|
||||
"text/html" // this is kind of a gamble
|
||||
].includes(item)
|
||||
? response.text()
|
||||
: false
|
||||
)
|
||||
.filter(_ => _)[0];
|
||||
|
||||
const jsonFeed = [contentType]
|
||||
.map(item =>
|
||||
["application/json", "application/feed+json"].includes(item) ? response.json() : false
|
||||
)
|
||||
.filter(_ => _)[0];
|
||||
|
||||
return rssFeed || jsonFeed || false;
|
||||
}
|
||||
|
||||
/*
|
||||
There's a little inconcistency with how feeds report certain things like
|
||||
title, links and timestamps. These helpers try to normalize that bit and
|
||||
provide an order-of-operations list of properties to look for.
|
||||
|
||||
Note: these are tightly-coupled to the template and a personal preference.
|
||||
*/
|
||||
|
||||
const getLink = (obj) => {
|
||||
const link_values = ["link", "url", "guid", "home_page_url"];
|
||||
const keys = Object.keys(obj);
|
||||
const link_property = link_values.find(link_value => keys.includes(link_value));
|
||||
return obj[link_property];
|
||||
}
|
||||
|
||||
|
||||
// fallback to URL for the title if not present (coupled to my template)
|
||||
const getTitle = (obj) => {
|
||||
const title_values = ["title", "url", "link"]; // fallback to url/link as title if omitted
|
||||
const keys = Object.keys(obj);
|
||||
const title_property = title_values.find(title_value => keys.includes(title_value));
|
||||
return obj[title_property];
|
||||
}
|
||||
|
||||
// More dependable way to get timestamps
|
||||
const getTimestamp = (obj) => {
|
||||
const timestamp = new Date(obj.pubDate || obj.isoDate || obj.date || obj.date_published).getTime();
|
||||
return isNaN(timestamp) ? (obj.pubDate || obj.isoDate || obj.date || obj.date_published) : timestamp;
|
||||
}
|
||||
|
||||
// fetch the feeds and build the object for our template
|
||||
(async () => {
|
||||
const contentFromAllFeeds = {};
|
||||
const errors = [];
|
||||
|
||||
for (const group in feeds) {
|
||||
contentFromAllFeeds[group] = [];
|
||||
|
||||
for (let index = 0; index < feeds[group].length; index++) {
|
||||
try {
|
||||
const response = await fetch(feeds[group][index]);
|
||||
const body = await parseFeed(response);
|
||||
const contents =
|
||||
typeof body === "string" ? await parser.parseString(body) : body;
|
||||
|
||||
contents.feed = feeds[group][index];
|
||||
contents.title = getTitle(contents);
|
||||
contents.link = getLink(contents);
|
||||
contentFromAllFeeds[group].push(contents);
|
||||
|
||||
// try to normalize date attribute naming
|
||||
contents?.items?.forEach(item => {
|
||||
item.timestamp = getTimestamp(item);
|
||||
item.title = getTitle(item);
|
||||
item.link = getLink(item);
|
||||
});
|
||||
|
||||
} catch (error) {
|
||||
errors.push(feeds[group][index]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const output = env.render("./src/template.html", {
|
||||
data: contentFromAllFeeds,
|
||||
errors: errors
|
||||
});
|
||||
console.log(output);
|
||||
})();
|
||||
143
src/index.ts
Normal file
143
src/index.ts
Normal file
@ -0,0 +1,143 @@
|
||||
/*
|
||||
* 🦉 Bubo Reader
|
||||
* ====
|
||||
* Dead simple feed reader (RSS + JSON) that renders an HTML
|
||||
* page with links to content from feeds organized by site
|
||||
*
|
||||
* Code: https://github.com/georgemandis/bubo-rss
|
||||
* Copyright (c) 2019 George Mandis (https://george.mand.is)
|
||||
* Version: 1.0.1 (11/14/2021)
|
||||
* Licensed under the MIT License (http://opensource.org/licenses/MIT)
|
||||
*/
|
||||
|
||||
import fetch from "node-fetch";
|
||||
import Parser from "rss-parser";
|
||||
import { Feeds, FeedItem } from "./@types/bubo";
|
||||
import { Response } from "node-fetch";
|
||||
import { render } from "./renderer.js";
|
||||
import { getLink, getTitle, getTimestamp, parseFeed, getFeedList } from "./utilities.js";
|
||||
import { writeFile } from "fs/promises";
|
||||
import chalk from "chalk";
|
||||
|
||||
const parser = new Parser();
|
||||
const feedList = await getFeedList();
|
||||
const feedListLength = Object.entries(feedList).flat(2).length - Object.keys(feedList).length;
|
||||
|
||||
/**
|
||||
* contentFromAllFeeds = Contains normalized, aggregated feed data and is passed to template renderer at the end
|
||||
* errors = Contains errors from parsing feeds and is also passed to template.
|
||||
*/
|
||||
const contentFromAllFeeds: Feeds = {};
|
||||
const errors: unknown[] = [];
|
||||
|
||||
// benchmarking data + utility
|
||||
const initTime = Date.now();
|
||||
const benchmark = (startTime: number) => chalk.cyanBright.bold(`(${(Date.now() - startTime) / 1000} seconds)`);
|
||||
|
||||
/**
|
||||
* These values are used to control throttling/batching the fetches:
|
||||
* - MAX_CONNECTION = max number of fetches to contain in a batch
|
||||
* - DELAY_MS = the delay in milliseconds between batches
|
||||
*/
|
||||
const MAX_CONNECTIONS = Infinity;
|
||||
const DELAY_MS = 850;
|
||||
|
||||
const error = chalk.bold.red;
|
||||
const success = chalk.bold.green;
|
||||
|
||||
// keeping tally of total feeds fetched and parsed so we can compare
|
||||
// to feedListLength and know when we're finished.
|
||||
let completed = 0;
|
||||
|
||||
|
||||
/**
|
||||
* finishBuild
|
||||
* --
|
||||
* function that gets called when all the feeds are through fetching
|
||||
* and we want to build the static output.
|
||||
*/
|
||||
const finishBuild: () => void = async () => {
|
||||
console.log("\nDone fetching everything!");
|
||||
|
||||
// generate the static HTML output from our template renderer
|
||||
const output = render({
|
||||
data: contentFromAllFeeds,
|
||||
errors: errors
|
||||
});
|
||||
|
||||
// write the output to public/index.html
|
||||
await writeFile("./public/index.html", output);
|
||||
console.log(`Finished writing to output. ${benchmark(initTime)}`);
|
||||
};
|
||||
|
||||
/**
|
||||
* processFeed
|
||||
* --
|
||||
* Process an individual feed and normalize its items
|
||||
* @param { group, feed, startTime}
|
||||
* @returns Promise<void>
|
||||
*/
|
||||
const processFeed = (
|
||||
{
|
||||
group, feed, startTime
|
||||
}: { group: string; feed: string, startTime: number }
|
||||
) => async (response: Response): Promise<void> => {
|
||||
const body = await parseFeed(response);
|
||||
completed++;
|
||||
// skip to the next one if this didn't work out
|
||||
if (!body) return;
|
||||
|
||||
try {
|
||||
const contents: FeedItem =
|
||||
(typeof body === "string" ? (await parser.parseString(body)) : body) as FeedItem;
|
||||
|
||||
contents.feed = feed;
|
||||
contents.title = getTitle(contents);
|
||||
contents.link = getLink(contents);
|
||||
|
||||
// try to normalize date attribute naming
|
||||
contents?.items?.forEach((item) => {
|
||||
item.timestamp = getTimestamp(item);
|
||||
item.title = getTitle(item);
|
||||
item.link = getLink(item);
|
||||
});
|
||||
|
||||
contentFromAllFeeds[group].push(contents as object);
|
||||
console.log(`${success("Successfully fetched:")} ${feed} ${benchmark(startTime)}`);
|
||||
|
||||
} catch (err) {
|
||||
console.log(`${error("Error processing:")} ${feed} ${benchmark(startTime)}`);
|
||||
errors.push(err);
|
||||
}
|
||||
|
||||
// if this is the last feed, go ahead and build the output
|
||||
(completed === feedListLength) && finishBuild();
|
||||
};
|
||||
|
||||
|
||||
// go through each group of feeds and process
|
||||
const processFeeds = () => {
|
||||
let idx = 0;
|
||||
|
||||
for (const [group, feeds] of Object.entries(feedList)) {
|
||||
contentFromAllFeeds[group] = [];
|
||||
|
||||
for (const feed of feeds) {
|
||||
const startTime = Date.now();
|
||||
setTimeout(() => {
|
||||
console.log(`Fetching: ${feed}...`);
|
||||
|
||||
fetch(feed).then(processFeed({ group, feed, startTime })).catch(err => {
|
||||
console.log(error(`Error fetching ${feed} ${benchmark(startTime)}`));
|
||||
errors.push(`Error fetching ${feed} ${err.toString()}`);
|
||||
});
|
||||
|
||||
}, (idx % (feedListLength / MAX_CONNECTIONS)) * DELAY_MS);
|
||||
idx++;
|
||||
}
|
||||
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
processFeeds();
|
||||
37
src/renderer.ts
Normal file
37
src/renderer.ts
Normal file
@ -0,0 +1,37 @@
|
||||
/*
|
||||
* Return our renderer.
|
||||
* Using Nunjucks out of the box.
|
||||
* https://mozilla.github.io/nunjucks/
|
||||
*/
|
||||
|
||||
import nunjucks from "nunjucks";
|
||||
const env: nunjucks.Environment = nunjucks.configure({ autoescape: true });
|
||||
import { readFile } from "fs/promises";
|
||||
import { Feeds } from "./@types/bubo";
|
||||
|
||||
/**
|
||||
* Global filters for my Nunjucks templates
|
||||
*/
|
||||
env.addFilter("formatDate", function (dateString): string {
|
||||
const date: Date = new Date(parseInt(dateString));
|
||||
return !isNaN(date.getTime()) ? date.toLocaleDateString() : dateString;
|
||||
});
|
||||
|
||||
env.addGlobal("now", (new Date()).toUTCString());
|
||||
|
||||
// load the template
|
||||
const template: string =
|
||||
(await readFile(
|
||||
new URL("../config/template.html", import.meta.url)
|
||||
)).toString();
|
||||
|
||||
// generate the static HTML output from our template renderer
|
||||
const render = ({ data, errors }: { data: Feeds; errors: unknown[] }) => {
|
||||
return env.renderString(template, {
|
||||
data,
|
||||
errors
|
||||
});
|
||||
};
|
||||
|
||||
|
||||
export { render };
|
||||
74
src/utilities.ts
Normal file
74
src/utilities.ts
Normal file
@ -0,0 +1,74 @@
|
||||
/*
|
||||
There's a little inconcistency with how feeds report certain things like
|
||||
title, links and timestamps. These helpers try to normalize that bit and
|
||||
provide an order-of-operations list of properties to look for.
|
||||
|
||||
Note: these are tightly-coupled to the template and a personal preference.
|
||||
*/
|
||||
|
||||
import { Response } from "node-fetch";
|
||||
import { readFile } from "fs/promises";
|
||||
import { FeedItem, JSONValue } from "./@types/bubo";
|
||||
|
||||
export const getLink = (obj: FeedItem): string => {
|
||||
const link_values: string[] = ["link", "url", "guid", "home_page_url"];
|
||||
const keys: string[] = Object.keys(obj);
|
||||
const link_property: string | undefined = link_values.find(link_value => keys.includes(link_value));
|
||||
return link_property ? obj[link_property] as string : "";
|
||||
};
|
||||
|
||||
|
||||
// fallback to URL for the title if not present (coupled to my template)
|
||||
export const getTitle = (obj: FeedItem): string => {
|
||||
const title_values: string[] = ["title", "url", "link"]; // fallback to url/link as title if omitted
|
||||
const keys: string[] = Object.keys(obj);
|
||||
const title_property: string | undefined = title_values.find(title_value => keys.includes(title_value));
|
||||
return title_property ? obj[title_property] as string : "";
|
||||
};
|
||||
|
||||
// More dependable way to get timestamps
|
||||
export const getTimestamp = (obj: FeedItem): string => {
|
||||
const dateString: string = (obj.pubDate || obj.isoDate || obj.date || obj.date_published).toString();
|
||||
const timestamp: number = new Date(dateString).getTime();
|
||||
return isNaN(timestamp) ? dateString : timestamp.toString();
|
||||
};
|
||||
|
||||
|
||||
// parse RSS/XML or JSON feeds
|
||||
export async function parseFeed(response: Response): Promise<JSONValue> {
|
||||
const contentType = response.headers.get("content-type")?.split(";")[0];
|
||||
|
||||
if (!contentType) return {};
|
||||
|
||||
const rssFeed = [contentType]
|
||||
.map(item =>
|
||||
[
|
||||
"application/atom+xml",
|
||||
"application/rss+xml",
|
||||
"application/xml",
|
||||
"text/xml",
|
||||
"text/html" // this is kind of a gamble
|
||||
].includes(item)
|
||||
? response.text()
|
||||
: false
|
||||
)
|
||||
.filter(_ => _)[0];
|
||||
|
||||
const jsonFeed = [contentType]
|
||||
.map(item =>
|
||||
["application/json", "application/feed+json"].includes(item) ? response.json() as Promise<JSONValue> : false
|
||||
)
|
||||
.filter(_ => _)[0];
|
||||
|
||||
return (rssFeed && rssFeed) || (jsonFeed && jsonFeed) || {};
|
||||
}
|
||||
|
||||
|
||||
export const getFeedList = async (): Promise<JSONValue> => {
|
||||
return JSON.parse(
|
||||
(await readFile(
|
||||
new URL("../config/feeds.json", import.meta.url)
|
||||
)).toString()
|
||||
);
|
||||
};
|
||||
|
||||
30
tsconfig.json
Normal file
30
tsconfig.json
Normal file
@ -0,0 +1,30 @@
|
||||
{
|
||||
"compilerOptions": {
|
||||
"module": "esnext",
|
||||
"forceConsistentCasingInFileNames": true,
|
||||
"removeComments": true,
|
||||
"strict": true,
|
||||
"importHelpers": true,
|
||||
"esModuleInterop": true,
|
||||
"allowSyntheticDefaultImports": true,
|
||||
"target": "ES2021",
|
||||
"noImplicitAny": true,
|
||||
"moduleResolution": "node",
|
||||
"sourceMap": false,
|
||||
"resolveJsonModule": true,
|
||||
"outDir": "dist",
|
||||
"baseUrl": ".",
|
||||
"typeRoots": [
|
||||
"src/@types"
|
||||
],
|
||||
"paths": {
|
||||
"*": [
|
||||
"node_modules/*",
|
||||
"src/@types"
|
||||
]
|
||||
}
|
||||
},
|
||||
"include": [
|
||||
"src/**/*"
|
||||
]
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user