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Publish old rsstube Bash code.

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# Changelog
## [2020.01.10] - 2020-01-10
- Switch from semantic versioning to calendar versioning
- Add support for more sites by software
### Added
- Hugo
- Mastodon
- Pleroma
- Ability to identify Invidious and Nitter if they're not on the list of known domains
### Changed
- Changed from semantic versioning to calendar versioning
## [2.6.0] - 2020-01-08
- Began support for feeds with unknown domains but known software
### Added
- Added support for WriteFreely and Plume without knowing all domains ahead of time.
- Added more examples to documentation.
### Fixed
- Fixed bugs in Tumblr and Vimeo extractors.
## [2.5.2] - 2020-01-02
- Fixed Cloudflare blocking Tor issue
### Fixed
- Updated the "Tor mode" HTTP header info to bypass Cloudflare blocks.
## [2.5.1] - 2019-12-31
- Fixed YouTube video support issue
### Fixed
- Updated support for rsstube on YouTube video pages following YouTube metadata format change.
- Fixed a bug with the updater.
## [2.5.0] - 2019-12-28
- Improved support for options
### Added
- Added support for --long-options.
### Fixed
- Improved config file robustness.
## [2.4.0] - 2019-11-28
- Realigned code with project goals
### Added
- Added support for Nitter.
### Removed
- Removed Invidious mode... Invidious and YouTube should be treated as separate things.
## [2.3.0] - 2019-11-27
- Added support for more curl options
### Added
- Added (t)or flag to use appropriate HTTP headers to make Cloudflare think we're using the Tor Browser.
- Added (c)url flag to pass arbitrary arguments to curl.
- Added another podcast site (Player.fm).
### Changed
- Did some code refactoring.
## [2.2.1] - 2019-11-15
- Fixed invidious option problem
### Fixed
- Fixed problem with using -i "" as an option for YouTube/Invidious domain from URL not from config.
## [2.2.0] - 2019-11-02
- Added support for YouTube playlists and podcasts.
### Added
- Feeds for YouTube/Invidious playlists.
- Get podcast feeds from Apple Podcasts, Castro.FM, Google Podcasts, and Pocket Casts.
## [2.1.0] - 2019-11-02
- Added support for Invidious.
### Added
- Users can use Invidious URLs.
- Users can specify an Invidious instance to use instead of YouTube.
### Fixed
- Fixed updater for git version.
## [2.0.1] - 2019-10-31
- Fixed updater.
### Fixed
- Fixed updater.
## [2.0.0] - 2019-10-23
- Restructured program
### Added
- Added support for more sites
- Added in-program updating
- Added more options
## [1.1.0] - 2019-10-01
- Improved efficiency.
- Added support for proxies.
### Changed
- Greatly improve efficiency of processing video URLs.
- Switched to curl instead of wget.
### Added
- Added support for proxies with curl.
## [1.0.1] - 2019-08-31
- Improved efficiency.
### Changed
- Improve efficiency of processing channel URLs.
## [1.0.0] - 2019-07-26
- First numbered release.
### Added
- Support for video URLs, not just channel URLs.

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ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# rsstube
**NOTE: This project has been archived. See https://negativezero.link/code/0x80/rsstube for the Python rewrite.**
`rsstube` accepts a link (e.g., a YouTube channel) and attempts to get an RSS feed for that link.
NOTE: If you downloaded `rsstube` v2.5.0 and installed it, please manually remove and re-install the program. I created a bug in that version that prevents the updater from working correctly. If you downloaded it with `git`, you can just `cd` into the directory and `git pull` to fix the issue.
Sorry about that.
## Dependencies
Core utils like `curl` and `grep` are required.
Note: This script was written and tested with Bash. I tried to make it portable, but it may not work with all shells. Please feel free to let me know if it doesn't work with your shell.
## Installing
### 1. Download the source.
Clone the git repo.
Extract the archive where you would like the files to be in (e.g., `/usr/local/share/applications/rsstube/` or `~/.rsstube/`).
If the files are put into `~/.rsstube/` then `rsstube` will be able to update itself without root permission, but it will also be modifiable without root access, which may not be desired.
### Using the Install Script
#### 2. Run the `install` script as root:
`sudo ./install`
### Manually
#### 2. Create a symlink for the `rsstube` file in `/usr/local/bin/`:
`sudo ln -s [path]/rsstube /usr/local/bin/rsstube`
#### 3. To add the manual for `rsstube` (optional, but recommended), symlink `rsstube.1` in `/usr/local/share/man/man1/`:
`sudo ln -s [path]/rsstube /usr/local/share/man/man1/rsstube`
#### 4. To update the manual database, run `mandb` as root:
`sudo mandb`
#### 5. If you want a config file, add it at `/etc/rsstube/config`:
`sudo mkdir /etc/rsstube && sudo cp templates/config /etc/rsstube/config`
## Updating
To update `rsstube`, use `rsstube` with the -U option:
`rsstube -U`
Depending on where `rsstube` is installed, you may need to run this as root:
`sudo rsstube -U`
If you downloaded the git repository, this will just call `git pull`.
There is no need to re-run the install script since the symlinks have already been created.
## Usage
`rsstube [OPTIONS] <link>`
Note, URLs with ampersands (&) should be put in quotes so they aren't misinterpreted as commands by the shell.
## Options
`-c, --curl-args <curl arguments>` - Pass arbitrary arguments to curl. Not recommended unless you know what you're doing.
`-h, --help` - Print help information.
`-n, --non-network` - Non-network mode. Attempt to get RSS feed from URL only, and do not download page.
`-p, --proxy <proxy>` - Specify a proxy argument for curl. The `-x` flag should not be specified.
`-q, --quiet` - Make the `curl` call in silent mode.
`-t, --tor-mode` - Set header information in the HTTP request so you appear to be using the Tor Browser. This is useful if you're using a Tor proxy (with `-p`) but Cloudflare blocks your request, demanding you complete a reCAPTCHA. Cloudflare is more suspicious of Tor traffic that is not from the Tor Browser, so if we pretend to be the Tor Browser, we can get around some of this.
`-U, --update` - Update `rsstube`.
`-V, --version` - Get `rsstube` version.
A config file may also be specified in `/etc/rsstube/config` or in `~/.config/rsstube/config`. (In the case that both are present, only the local config file will be used.) This will provide default options. The options passed as arguments will take precedence over the config file.
## Examples
`rsstube https://www.youtube.com/channel/UCqC_GY2ZiENFz2pwL0cSfAw`
`rsstube https://www.youtube.com/watch?v=XzIXc5CTC2M`
`rsstube "https://www.youtube.com/watch?v=fFlfxwZDFzY&list=PL8D8D4240EC972114"`
`rsstube -q https://soundcloud.com/greatnessgd`
`rsstube -p socks5://localhost:9150 https://www.youtube.com/watch?v=XzIXc5CTC2M`
`rsstube --proxy "socks5h://localhost:9050" -t https://player.fm/series/series-1456689`
## How It Works
`rsstube` gets the built-in RSS feed for various sites. It does not generate its own RSS feed and does not require a server. Generally, it works as such:
### 1. `rsstube` looks at the URL and tries to determine a feed URL from it.
Some sites' feed URLs can be easily derived from the generic URL, for instance by adding `/rss` to the end.
### 2. If it was unable to derive the feed URL from the argument, it downloads the page (with `curl`) and tries to determine the feed URL based on information from the page.
Some sites use, for instance, a user ID in their feed URLs, so `rsstube` needs to get that user ID from the page itself.
For more details about how feeds for a specific site work, see [docs/sites.md](docs/sites.md).

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-A "Mozilla/5.0 (Windows NT 10.0; rv:68.0) Gecko/20100101 Firefox/68.0"
--tls-max 1.3
--tls13-ciphers TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384
--ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305-SHA256:ECDHE-RSA-CHACHA20-POLY1305-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384
-H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
-H "Accept-Language: en-US,en;q=0.5"
-H "Accept-Encoding: gzip, deflate, br"
-H "Connection: keep-alive"
-H "Upgrade-Insecure-Requests: 1"
--compressed

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# Sites
Below are two lists: Sites that are supported by rsstube, and sites that are explicitly not supported (because they do not seem to natively support RSS). If any of the unsupported sites actually do support RSS natively, or if you want me to add/look into a site that's not on either list, please let me know.
I tried to give sample URLs for each site or software. These are just examples and should not be taken as endorsements. I like some of them, but for some of them, I just needed examples.
- [Supported Sites](#supported-sites)
- [Unsupported Sites](#unsupported-sites)
## Supported Sites
These sites support RSS natively, and rsstube can get a feed for them.
- [Chirbit](#chirbit)
- [DeviantArt](#deviantart)
- [Hugo](#hugo)
- [Invidious](#invidious)
- [Mastodon](#mastodon)
- [Nitter](#nitter)
- [Pleroma](#pleroma)
- [Plume](#plume)
- [Podcasts](#podcasts)
- [Reddit](#reddit)
- [Soundcloud](#soundcloud)
- [Tumblr](#tumblr)
- [Vimeo](#vimeo)
- [WriteFreely](#writefreely)
- [YouTube](#youtube)
### Chirbit
Chirbit users have a built-in RSS feed at `https://www.chirbit.com/[username]/rss`. If a user's page URL is passed in, `rsstube` just appends `/rss` after the username. If a track URL (at `chirb.it`) is passed in, the page is downloaded, and the username is grabbed from the page.
Sample URLs:
- https://www.chirbit.com/Giannaa -> https://www.chirbit.com/Giannaa/rss
- https://chirb.it/9qxaAG -> https://www.chirbit.com/Giannaa/rss
### DeviantArt
DeviantArt RSS URLs are complicated, but the basic idea is `https://backend.deviantart.com/rss.xml` followed by arguments. A feed for a given user's deviations can be found at:
`https://backend.deviantart.com/rss.xml?type=deviation&q=by%3A[username]+sort%3Atime+meta%3Aall`. See [the DeviantArt page on RSS feeds](https://www.deviantart.com/developers/rss) for more information.
`rsstube` doesn't do anything fancy here; it just generates the above URL for the given user.
Sample URLs:
- https://www.deviantart.com/sashakhmel -> https://backend.deviantart.com/rss.xml?type=deviation&q=by%3Asashakhmel+sort%3Atime+meta%3Aall
- https://www.deviantart.com/sashakhmel/art/lady-in-armor-825805802 -> https://backend.deviantart.com/rss.xml?type=deviation&q=by%3Asashakhmel+sort%3Atime+meta%3Aall
### Hugo
Sites generated with [Hugo](https://gohugo.io/) have a feed at `/index.xml`. I don't know if this is true of all Hugo sites, but it at least sometimes works.
Sample URLs:
- https://gohugo.io/ -> https://gohugo.io/index.xml
- https://lesbianhacker.neocities.org/ -> https://lesbianhacker.neocities.org/index.xml
### Invidious
Invidious is basically a free software proxy to YouTube with [several public instances](https://github.com/omarroth/invidious/wiki/Invidious-Instances), and it supports URL schemes in the same way [YouTube](#youtube) does. It also supports other things, for instance, URLs in the form `https://www.youtube.com/user/[username]` have an Invidious RSS feed at `[invidious domain]/feed/channel/[username]`. Playlist feeds can be found at `[invidious domain]/feed/playlist/[playlist_id]`.
If the page must be downloaded to find additional information, `rsstube` looks for `<div class="h-box"> <a href="/channel/[channel_id]" style="display:block;width:fit-content;width:-moz-fit-content"> <div class="channel-profile">`, and uses that to form `[domain]/feed/channel/[channel_id]`.
Sample URLs:
- https://invidio.us/watch?v=UEQfaTntFNw -> https://invidio.us/feeds/videos.xml?channel_id=UCo3AxjxePfj6DHn03aiIhww
- http://axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid.onion/watch?v=4jYsu5-TJQ8 -> http://axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid.onion/feeds/videos.xml?channel_id=UCFn5CIjfAj-KZgJtsXw349g
- https://invidio.us/channel/UCqC_GY2ZiENFz2pwL0cSfAw -> https://invidio.us/feed/channel/UCqC_GY2ZiENFz2pwL0cSfAw
### Mastodon
Mastodon user pages are at `[domain]/@[username]`, and posts are at `[domain]/@[username]/[postID]`. Mastodon user pages can also be found at `[domain]/users/[username]` (I think for compatability with Pleroma). The RSS feed for a given user is at `[domain]/@[username].rss`.
Sample URLs:
- https://mastodon.social/@gargron -> https://mastodon.social/@gargron.rss
### Nitter
Nitter is like Invidious, but for Twitter. It has [several public instances](https://github.com/zedeus/nitter/wiki/Instances). Nitter feeds have URLs at `[nitter domain]/[username]/rss`.
Note, Twitter is not supported.
Sample URLs:
- https://nitter.net/doctorow -> https://nitter.net/doctorow/rss
- http://3nzoldnxplag42gqjs23xvghtzf6t6yzssrtytnntc6ppc7xxuoneoad.onion/doctorow/status/1214288190317592576#m -> http://3nzoldnxplag42gqjs23xvghtzf6t6yzssrtytnntc6ppc7xxuoneoad.onion/doctorow/rss
### Pleroma
Pleroma user URLs are at `[domain]/users/[username]`. The Atom feed for a given user is at `[domain]/users/[username]/feed.atom`. This may not work for all instances.
Sample URLs:
- https://kawen.space/users/314 -> https://kawen.space/users/314/feed.atom
### Plume
Some Plume pages directly link to the Atom feed in an alternate link. `rsstube` first looks for this link: `<link href='[domain]/@/[username]/atom.xml' rel='alternate' type='application/atom+xml'>`. If it doesn't find the link, it tries to create it. The feed for a given user is at `[domain]/@/[username]/atom.xml`. If the provided URL is a user's page (`[domain]/@/[username]`), it just puts the `atom.xml` on the end. If it's a blog post (`[domain]/~/[username]/[post-title]/`), it looks for a link to the user page: `<a rel="author" class="u-url" href="[domain]/@/[username]/"></a>` and appends the `atom.xml` to that.
Sample URLs:
- https://blog.funkwhale.audio/@/funkwhale -> https://blog.funkwhale.audio/@/funkwhale/atom.xml
- https://fediverse.blog/~/MusingsByRg/firefox-add-ons-for-the-active-user -> https://fediverse.blog/@/rgx/atom.xml
### Podcasts
A podcast is just an RSS feed, but a lot of people post links to specific services like Apple Podcasts, instead of just posting the feed link. `rsstube` supports the following podcast sites, so you should be able to put in the URL for a podcast, and it will return the RSS feed URL.
Basically, `rsstube` just looks on the page for a link to the actual RSS file.
Sites with sample URLs:
- Apple Podcasts (https://podcasts.apple.com/us/podcast/irl-online-life-is-real-life/id1247652431 -> https://feeds.mozilla-podcasts.org/irl)
- Castro.fm (https://castro.fm/podcast/b3891201-4d76-4152-adeb-ae3e13d17f29 -> https://www.smashingsecurity.com/rss)
- fyyd (https://fyyd.de/podcast/shades-of-brown/0 -> https://twoshadesofbrown.com/feed/podcast/)
- Google Podcasts (https://podcasts.google.com/?feed=aHR0cHM6Ly9wb2RjYXN0Lm5lYXJseW9ucmVkLmNvbS9mZWVkLnhtbA -> https://podcast.nearlyonred.com/feed.xml)
- Player.fm (https://player.fm/series/tea-with-queen-and-j -> http://feeds.soundcloud.com/users/soundcloud:users:83464467/sounds.rss)
- Pocket Casts (https://pca.st/iHi8 -> https://feeds.simplecast.com/ZL7iUDiH)
### Reddit
Reddit URLs are extremely hackable, so `rsstube` assumes the user wants a feed for the actual URL provided, not specifically a user or a subreddit. To get an RSS feed for a Reddit page, just add `/.rss` to the end of the URL.
Sample URLs:
- https://old.reddit.com/r/privacy/ -> https://old.reddit.com/r/privacy/.rss
- https://www.reddit.com/r/onions+tor+onionlovers/ -> https://www.reddit.com/r/onions+tor+onionlovers/.rss
### Soundcloud
Soundcloud users have built-in RSS feeds, which `rsstube` returns; **however, by default tracks are not added to them.** The feed comes in the form: `https://feeds.soundcloud.com/users/soundcloud:users:[user_id]/sounds.rss`
To get the user ID, we download the page and search for the string `soundcloud:users:[user_id]"`
Unfortunately, most Soundcloud RSS feeds will be empty, unless they are for a serialized podcast or something like that.
Sample URLs:
- https://soundcloud.com/greatnessgd -> https://feeds.soundcloud.com/users/soundcloud:users:2097827/sounds.rss
- https://soundcloud.com/user-98066669 -> https://feeds.soundcloud.com/users/soundcloud:users:261098918/sounds.rss
### Tumblr
Tumblr provides an RSS feed for a given page at `[page URL]/rss`. For example, the feed for `username`'s posts will be: `https://username.tumblr.com/rss`. If you wanted all of `username`'s posts that were tagged `funny`, you could use `https://username.tumblr.com/tagged/funny/rss`
(Note: Tumblr does not support HTTPS on all pages, so the URL may actually start with `http://` )
Sample URLs:
- https://william-snekspeare.tumblr.com/ -> https://william-snekspeare.tumblr.com/rss
- https://william-snekspeare.tumblr.com/tagged/comic -> https://william-snekspeare.tumblr.com/tagged/comic/rss
### Vimeo
The Vimeo RSS feed for a user comes in the form: `https://vimeo.com/user[user_id]/videos/rss`
If `rsstube` receives a URL in the form `https://vimeo.com/user[user_id]/` it can just append `videos/rss` to the end. If it receives a video URL, it will need to download the video page and find the user ID. It can be found in various parts of the page, including by searching for `creator_id`
Sample URLs:
- https://vimeo.com/user51602410 -> https://vimeo.com/user51602410/videos/rss
- https://vimeo.com/63502573 -> https://vimeo.com/user2617788/videos/rss
### Write.as
See [WriteFreely](#writefreely).
### WriteFreely
WriteFreely(/Write.as) puts an RSS feed at `[user page]/feed/`. For single-user instances, this means `[domain]/feed/`, and for multi-user instances, this means `[domain]/[username]/feed/`.
The user's page also lists the feed directly in a link element: `<link rel="alternate" type="application/rss+xml" title="[username] &raquo; Feed" href="[RSS link]" />`
Sample URLs:
- https://tomskee.dev/ -> https://tomskee.dev/feed/
- https://tomskee.dev/claiming-2020-for-myself -> https://tomskee.dev/feed/
- https://wordsmith.social/rgx/ -> https://wordsmith.social/rgx/feed/
- https://wordsmith.social/rgx/is-it-important-which-instance-you-are-in -> https://wordsmith.social/rgx/feed/
### YouTube
The YouTube RSS feed comes in the form: `https://www.youtube.com/feeds/videos.xml?channel_id=[channel_id]`
Some YouTube channels have a URL in the form: `https://www.youtube.com/channel/[channel_id]`. In this case, we just take the channel ID from the end of the URL. In the case of `https://www.youtube.com/user/[username]` we can instead use `https://www.youtube.com/feeds/videos.xml?user=[username]`. For a playlist (`https://www.youtube.com/playlist?list=[playlist_id]`) we can use `https://www.youtube.com/feeds/videos.xml?playlist_id=[playlist_id]`.
If the channel's URL is not in this form (e.g., if the user passes in a video URL), we download the page and try to get the channel ID from the metadata. YouTube seems to have moved this metadata info to JSON that's parsed by the JavaScript. `rsstube` now looks for the string: (`"channelId":"[channel_id]"`). If it's a user/channel page that for some reason wasn't already covered, we can also just use the canonical link to the /channel/ page (`<link rel="canonical" href="https://www.youtube.com/channel/[channel_id]">`).
Sample URLs:
- https://www.youtube.com/channel/UCqC_GY2ZiENFz2pwL0cSfAw -> https://www.youtube.com/feeds/videos.xml?channel_id=UCqC_GY2ZiENFz2pwL0cSfAw
- https://www.youtube.com/watch?v=XzIXc5CTC2M -> https://www.youtube.com/feeds/videos.xml?channel_id=UCexJsljKV3x4x8p0eyTrjVg
- https://www.youtube.com/watch?v=fFlfxwZDFzY&list=PL8D8D4240EC972114 (playlist - put this in quotes) -> https://www.youtube.com/feeds/videos.xml?playlist_id=PL8D8D4240EC972114
## Unsupported Sites
These sites are explicitly unsupported because they do not seem to support RSS natively. For these sites, you might have better luck with a tool like [RSS Box](https://github.com/stefansundin/rssbox) that can be run from your own server (or may have public instances) to create the RSS feed.
Links here are not guaranteed to be accurate but are included for some reference of why I believe the given site does not support RSS natively.
- Bandcamp [x](https://old.reddit.com/r/BandCamp/comments/6c47bh/question_no_more_rss_feeds/) [x](https://old.reddit.com/r/BandCamp/comments/9h2kcu/rss_reader_for_bandcamp_feed/)
- Meetup [requires API requests to be authenticated](https://www.meetup.com/meetup_api/auth/).
- Instagram [x](https://stackoverflow.com/questions/14747870/instagram-public-rss-feed)
- TikTok
- Twitch [x](https://discuss.dev.twitch.tv/t/twitch-rss-feed-link/1105)
- Twitter [x](https://twittercommunity.com/t/does-api-1-1-no-longer-support-rss-feeds/11257)

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#!/bin/sh
ERR='\033[0;31m'
WARN='\033[0;33m'
NC='\033[0m'
path=`dirname "$(readlink -f "$0")"`
if [ $EUID -ne 0 ]; then
echo -e "${ERR}In order to install this utility, root permissions must be granted.${NC}"
echo "This script will add files to the following directories:"
echo "/usr/local/bin/"
echo "/usr/local/share/man/man1/"
echo "/etc/"
echo ""
echo 'Please run as root by switching to superuser first or running as "sudo install"'
echo "Alternatively, you can manually install this utility by symlinking $path/rsstube in /usr/local/bin/ and $path/rsstube.1 in /usr/local/share/man/man1/"
echo "Afterwards, run mandb as root to update your manual database."
echo "Copy the templates/config file to /etc/rsstube/"
exit
fi
execpath=/usr/local/bin/rsstube
manpath=/usr/local/share/man/man1/rsstube.1
file_problem=""
if [[ -e $execpath ]]
then
# rm $execpath
echo -e "${WARN}Error: $execpath already exists.${NC}"
echo "If it was added from a version of rsstube < 2.0.0, then please delete it before installing:"
echo "sudo rm $execpath"
file_problem="true"
fi
if [[ -e $manpath ]]
then
# rm $manpath
echo -e "${WARN}Error: $manpath already exists.${NC}"
echo "If it was added from a version of rsstube < 2.0.0, then please delete it before installing:"
echo "sudo rm $manpath"
file_problem="true"
fi
if [[ -e /usr/bin/rsstube ]]
then
echo -e "${WARN}Error: /usr/bin/rsstube exists and has a conflicting name.${NC}"
echo "Please delete /usr/bin/rsstube:"
echo "sudo rm /usr/bin/rsstube"
file_problem="true"
fi
if [[ -n $file_problem ]]
then
echo -e "${WARN}Failed to install. Please fix above problems before trying again.${NC}"
exit
fi
ln -s $path/rsstube /usr/local/bin/rsstube
ln -s $path/rsstube.1 /usr/local/share/man/man1/rsstube.1
mandb
if [[ ! -d /etc/rsstube ]]
then
mkdir /etc/rsstube
fi
cp templates/config /etc/rsstube/config
echo "rsstube is now installed. You can use it by typing:"
echo "rsstube <url>"

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#!/bin/sh
# rsstube - get RSS feed for YouTube channels and other sites
# Copyright (C) 2019
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# run from absolute path of rsstube executable
cd `dirname "$(readlink -f "$0")"`
### UTILITIES
ERR='\033[1;31m'
WARN='\033[1;33m'
NC='\033[0m'
## for general output
notify() {
if [[ ! -n "$quiet" ]]
then
output "${1}"
fi
}
## for warning-level information, output in yellow
warn() {
if [[ ! -n "$quiet" ]]
then
echo -e "${WARN}${1}${NC}"
fi
}
## for errors. cannot be silenced, output in red
error() {
echo -e "${ERR}${1}${NC}"
}
## fail to get feed, terminate program
fail() {
error "Unable to get RSS feed."
exit
}
## general output, no formatting
output() {
echo "${1}"
}
## determine whether HTTP or HTTPS
## some sites may not support HTTPS
determine_protocol() {
protocol=${url%//*}
if [[ $protocol == $url ]]
then
protocol="http://"
else
protocol="${protocol}//"
fi
}
## get domain of URL
get_domain() {
domain=${url#*//}
domain=${domain%%/*}
}
## attempt to get feed from URL only
## if successful, output feed and terminate
url_extract() {
if [[ -f scripts/url-extractors/${site} ]]
then
source scripts/url-extractors/${site}
fi
if [[ -n $url_ext ]]
then
output $url_ext
exit
fi
}
## attempt to get feed from page data
## if successful, output feed and terminate
page_extract() {
if [[ -f scripts/page-extractors/${site} ]]
then
source scripts/page-extractors/$site
fi
if [[ -n $page_ext ]]
then
output $page_ext
exit
fi
}
# get user arguments
source scripts/options
# determine site ("" if not supported)
source scripts/determine_site
# get protocol and domain
determine_protocol
get_domain
if [[ -n "$site" ]]
then
notify "Site identified as $site"
fi
url_extract
if [[ -n $site ]]
then
notify "Unable to get feed from URL alone."
fi
# if no page extractor exists or user has opted not to download page, don't download the page
if [[ $network == "false" ]] || [[ -n $site && ! -f scripts/page-extractors/${site} ]]
then
fail
fi
# determine flags to pass to curl
args=" ${curl_args}"
vars=("proxy" "quiet")
for i in "${vars[@]}"
do
if [[ -n "${!i}" ]]
then
args="$args ${!i}"
fi
done
command="curl -L -i -D -$args $url"
notify "Downloading page..."
# download page with curl
content=`eval $command`
# check download for errors
source scripts/http_errors
# if unknown domain, try to determine if it uses known software
if [[ "$site" == "" ]]
then
notify "Attempting to determine if site uses known software..."
source scripts/determine_software
if [[ -n "$site" ]]
then
notify "Software identified as $site"
software_found="true"
fi
fi
# try to extract feed from page
notify "Attempting to get feed from page..."
page_extract
notify "Unable to get feed from page."
# try to get feed from URL if we determined the software
if [[ -n $software_found ]]
then
url_extract
notify "Unable to get feed from URL based on software."
fi
# unable to get feed
fail

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.\" Manual for rsstube.
.TH man rsstube 1 "10 January 2020" "" "rsstube manual"
.SH NAME
rsstube \- get feed for a page
.SH SYNOPSIS
\f[B]rsstube\f[] [OPTIONS] URL
.SH DESCRIPTION
rsstube attempts to get an RSS feed for a page from a supported site. If it can determine the feed URL based on the page URL, it does so. Otherwise, it uses \f[B]curl\f[] to download the page and tries to use information from the page to find the feed URL.
.SH OPTIONS
.TP
.BR \-c,\ --curl-args
\fIARGS\fR
pass arbitrary arguments to curl, not recommended unless you know what you're doing
.TP
.BR \-h,\ --help
print help information
.TP
.BR \-n,\ --non-network
non-network mode (only try to get feed without downloading page)
.TP
.BR -p,\ --proxy
\fIPROXY\fR
specify a proxy argument for curl
.TP
.BR \-q,\ --quiet
only output error messages (suppress warnings and notifications)
.TP
.BR \-t,\ --tor-mode
pretend to be Tor Browser (to evade Cloudflare scrutiny while using a Tor proxy with -p)
.TP
.BR \-U,\ --update
update rsstube
.TP
.BR \-V,\ --version
Get rsstube version
.SH EXAMPLES
.TP
rsstube https://www.youtube.com/channel/UCqC_GY2ZiENFz2pwL0cSfAw
.TP
rsstube https://www.youtube.com/watch?v=XzIXc5CTC2M
.TP
rsstube "https://www.youtube.com/watch?v=fFlfxwZDFzY&list=PL8D8D4240EC972114"
.TP
rsstube -q https://soundcloud.com/greatnessgd
.TP
rsstube -p "socks5h://localhost:9150" https://www.youtube.com/watch?v=XzIXc5CTC2M
.TP
rsstube --proxy "socks5h://localhost:9050" -t https://player.fm/series/series-1456689
.SH CONFIG OPTIONS
A config file can be specified at /etc/rsstube/config or ~/.config/rsstube/config. This file may contain the same options listed above. Arguments to rsstube supercede the config file options.
.SH CURRENTLY SUPPORTED SITES
.TP
Assorted podcast sites
.TP
Chirbit
.TP
DeviantArt
.TP
Hugo
.TP
Invidious
.TP
Mastodon
.TP
Nitter
.TP
Pleroma
.TP
Plume
.TP
Reddit
.TP
Soundcloud
.TP
Tumblr
.TP
Vimeo
.TP
WriteFreely
.TP
YouTube
.SH LICENSE
GPLv3+
.SH CURRENT VERSION
2020.01.10

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supported_sites=(
"apple_podcasts"
"castro_fm"
"chirbit"
"deviantart"
"google_podcasts"
"fyyd"
"invidious"
"nitter"
"player_fm"
"pocketcasts"
"reddit"
"soundcloud"
"tumblr"
"vimeo"
"youtube"
)
apple_podcasts=(
"podcasts.apple.com"
"itunes.apple.com/*/podcast"
)
castro_fm=("castro.fm")
chirbit=(
"chirbit.com"
"chirb.it"
)
deviantart=("deviantart.com")
fyyd=("fyyd.de/podcast/")
google_podcasts=("podcasts.google.com")
invidious=(
"invidio.us"
"kgg2m7yk5aybusll.onion"
"axqzx4s6s54s32yentfqojs3x5i7faxza6xo3ehd4bzzsg2ii4fv2iid.onion"
"invidious.snopyta.org"
"vid.wxzm.sx"
"invidiou.sh"
"tube.poal.co"
"yt.elukerio.org"
"invidious.drycat.fr"
"yt.lelux.fi"
"watch.nettohikari.com"
"fz253lmuao3strwbfbmx46yu7acac2jz27iwtorgmbqlkurlclmancad.onion"
"qklhadlycap4cnod.onion"
"c7hqkpkpemu6e7emz5b4vyz7idjgdvgaaa3dyimmeojqbgpea3xqjoid.onion"
"invidious.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd.onion"
)
nitter=(
"nitter.net"
"nitter.snopyta.org"
"nitter.42l.fr"
"nitter.nixnet.xyz"
"nitter.lelux.fi"
"nitter.pro"
"nitter.13ad.de"
"nitter.drycat.fr"
"3nzoldnxplag42gqjs23xvghtzf6t6yzssrtytnntc6ppc7xxuoneoad.onion"
"nitter.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd.onion"
"nitteruacegiyzybcc2xej3obcti3dlysz5l5jns7ob4gict6tcualid.onion"
)
player_fm=("player.fm/series/")
pocketcasts=("pca.st")
reddit=("reddit.com")
soundcloud=("soundcloud.com")
tumblr=("tumblr.com")
vimeo=("vimeo.com")
youtube=(
"youtube.com"
"youtu.be"
"yt.be"
"youtube-nocookie.com"
"youtubeeducation.com"
"youtubegaming.com"
"ytimg.com"
)
shopt -s nocasematch
match_found="false"
for possible_site in ${supported_sites[@]}
do
declare -n possible_domains="$possible_site"
for domain in ${possible_domains[@]}
do
if [[ "$url" == *$domain* ]]
then
site="$possible_site"
match_found="true"
break
fi
done
if [[ $match_found == "true" ]]
then
break
fi
done
shopt -u nocasematch

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supported_sites=(
"hugo"
"invidious"
"mastodon"
"nitter"
# "peertube"
"pleroma"
"plume"
"writefreely"
)
hugo=(
'<meta name=(")?generator(")? content="Hugo [0-9]{1,}.[0-9]{1,}.[0-9]{1,}"( )?(/)?>'
)
invidious=(
'<link title="Invidious" type="application/opensearchdescription\+xml" rel="search" href="/opensearch.xml">'
)
mastodon=(
"<div class='column-1'>\n<h4>Developers</h4>\n<ul>\n<li><a href=\"https://docs.joinmastodon.org/\">Documentation</a></li>\n<li><a href=\"https://docs.joinmastodon.org/api/guidelines/\">API</a></li>\n</ul>\n</div>"
)
nitter=(
'<meta property="og:site_name" content="Nitter"></meta>'
)
# note: we can identify PeerTube, but I don't know how to get the feed yet
#peertube=(
# '<meta property="og:platform" content="PeerTube" />'
#)
pleroma=(
'<noscript>To use Pleroma, please enable JavaScript.</noscript>'
'<title>Pleroma</title>'
)
plume=(
'<div>\n <h3>Plume [0-9]{1,}.[0-9]{1,}.[0-9]{1,}</h3>\n <a href="https://docs.joinplu.me">Documentation</a>\n <a href="https://github.com/Plume-org/Plume">Source code</a>\n <a href="https://riot.im/app/#/room/#plume:disroot.org">Matrix room</a>\n </div>'
)
writefreely=(
'<meta name="generator" content="Write.as">'
'<meta name="generator" content="WriteFreely">'
)
for possible_site in ${supported_sites[@]}
do
declare -n possible_patterns="$possible_site"
for pattern in "${possible_patterns[@]}"
do
site_pattern_match=`echo "$content" | grep -Pzo "$pattern" | tr '\0' '\n'`
if [[ -n "$site_pattern_match" ]]
then
site="$possible_site"
break
fi
done
if [[ -n "$site" ]]
then
break
fi
done

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cloudflare=""
recaptcha=""
# Cloudflare test
cloudflare=`echo "$content" | grep "<title>Attention Required! | Cloudflare</title>"`
if [[ -n "${cloudflare}" ]]
then
error "Cloudflare blocked the request."
if [[ -n "${proxy}" ]]
then
warn "Are you using Tor? If so, try using rsstube again with the -t option."
fi
fi
# general Google reCAPTCHA
recaptcha=`echo "$content" | grep "google.com/recaptcha/api"`
if [[ -n "${recaptcha}" ]]
then
error "reCAPTCHA requested"
fi
# HTTP errors
http_response=`echo "$content" | head -1 | xargs`
http_response=${http_response#* }
# print appropriate status code
case $http_response in
# 2xx success
200) response_message="200 OK" ;;
# 3xx redirection should already be handled by curl -L flag
301) response_message="301 Moved Permanently" ;;
302) response_message="302 Found" ;;
303) response_message="303 See Other" ;;
307) response_message="307 Temporary Redirect" ;;
308) response_message="308 Permanent Redirect" ;;
# 4xx client errors
400) response_message="400 Bad Request" ;;
401) response_message="401 Unauthorized" ;;
402) response_message="402 Payment Required" ;;
403) response_message="403 Forbidden" ;;
404) response_message="404 Not Found" ;;
405) response_message="405 Method Not Allowed" ;;
406) response_message="406 Not Acceptable" ;;
407) response_message="407 Proxy Authentication Required" ;;
408) response_message="408 Request Timeout" ;;
409) response_message="409 Conflict" ;;
410) response_message="410 Gone" ;;
411) response_message="411 Length Required" ;;
412) response_message="412 Precondition Failed" ;;
413) response_message="413 Payload Too Large" ;;
414) response_message="414 URI Too Long" ;;
415) response_message="415 Unsupported Media Type" ;;
416) response_message="416 Range Not Satisfiable" ;;
417) response_message="417 Expectation Failed" ;;
418) response_message="418 I'm a teapot" ;;
421) response_message="421 Misdirected Request" ;;
422) response_message="422 Unprocessable Entity" ;;
423) response_message="423 Locked" ;;
424) response_message="424 Failed Dependency" ;;
425) response_message="425 Too Early" ;;
426) response_message="426 Upgrade Required" ;;
428) response_message="428 Precondition Required" ;;
429) response_message="429 Too Many Requests" ;;
431) response_message="431 Request Header Fields Too Large" ;;
451) response_message="451 Unavailable For Legal Reasons" ;;
# 5xx server errors
500) response_message="500 Internal Server Error" ;;
501) response_message="501 Not Implemented" ;;
502) response_message="502 Bad Gateway" ;;
503) response_message="503 Service Unavailable" ;;
504) response_message="504 Gateway Timeout" ;;
505) response_message="505 HTTP Version Not Supported" ;;
506) response_message="506 Variant Also Negotiates" ;;
507) response_message="507 Insufficient Storage" ;;
508) response_message="508 Loop Detected" ;;
510) response_message="510 Not Extended" ;;
511) response_message="511 Network Authentication Required" ;;
esac
response_message="Server responded ${response_message}"
case ${response_message:17:1} in
2) notify "$response_message" ;;
3) warn "$response_message" ;;
4|5) error "$response_message" ;;
esac

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# specify arbitrary curl arguments - passed directly to curl
c() {
curl_args="$1"
}
# help
h() {
echo "Usage: rsstube [OPTIONS] URL"
echo "Do 'man rsstube' to see the manual for rsstube."
exit
}
# non-network mode (do not download page)
n() {
network="false"
}
# proxy
p() {
proxy="-x $1 "
}
# quiet (use curl in silent mode)
q() {
quiet="--silent "
}
# curl options for Tor (to avoid Cloudflare blocks)
t() {
tor_header=""
while read line
do
tor_header="${tor_header}${line} "
done < conf/tor-browser-header
curl_args="${curl_args} ${tor_header}"
}
# update rsstube
U() {
update="true"
}
# display version
V() {
version=`cat docs/version`
echo "rsstube v${version}"
exit
}
global_config="/etc/rsstube/config"
local_config="$HOME/.config/rsstube/config"
config_file=""
# local_config takes precedence over global_config, and only one (at most) will be used
if [[ -f "$local_config" ]]
then
config_file=${local_config}
elif [[ -f "$global_config" ]]
then
config_file=${global_config}
fi
# default assume we're not using Tor mode
tor_mode=""
if [[ -n "$config_file" ]]
then
while read line
do
# cut whitespace from beginning of line
line=${line##*( )}
# ignore commented out lines
if [[ -n $line && ${line:0:1} != "#" ]]
then
# get just argument
cmd=${line%% *}
case $cmd in
-c|--curl-args) c "${line#* }" ;;
-h|--help|help) h ;;
-n|--non-network) n ;;
-p|--proxy) p "${line#* }" ;;
-q|--quiet) q ;;
-t|--tor-mode) tor_mode="true" ;;
-U|--update) U ;;
-V|--version) V ;;
*) error "Unsupported option."; exit ;;
esac
fi
done < "$config_file"
fi
# options from method call take precedence over config file options
while [[ $# -gt 0 ]]
do
cmd="${1}"
case $cmd in
-c|--curl-args) shift; c "${1}" ;;
-h|--help|help) h ;;
-n|--non-network) n ;;
-p|--proxy) shift; p "${1}" ;;
-q|--quiet) q ;;
-t|--tor-mode) tor_mode="true" ;;
-U|--update) U ;;
-V|--version) V ;;
*) url="${1}" ;;
esac
# finish with this command
shift
done
if [[ "${update}" == "true" ]]
then
source scripts/update
exit
fi
if [[ -n "${tor_mode}" ]]
then
t
fi
if [[ ! -n "${url}" ]]
then
error "No URL supplied!"
exit
fi

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rss=`echo "$content" | grep -o -P '(?<="feedUrl":").*?(?=")' | head -1`
if [[ -n "$rss" ]]
then
page_ext=$rss
fi

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page_ext=`echo "$content" | grep -Pzo '(?<=<a href=").*?(?="><img alt="Subscribe to RSS")' | head -1 | tr '\0' '\n'`

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username=`echo "$content" | grep -o -P '(?<=<span id="chirbit-username">).*?(?=</span>)' | head -1`
if [[ -n "$username" ]]
then
rss="https://www.chirbit.com/$username/rss"
page_ext=$rss
fi

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page_ext=`echo "$content" | grep -Po '(?<=<noscript><a href=").*?(?=">subscribe</a></noscript>)' | head -1 | tr '\0' '\n'`

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page_ext=`echo "$content" | grep -Po '(?<=data-feed=").*?(?=">)' | head -1 | tr '\0' '\n'`

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determine_protocol
get_domain
instance="${protocol}${domain}"
channel=`echo $content | grep -Pzo '(?<=<div class="h-box"> <a href=").*?(?=" style="display:block;width:fit-content;width:-moz-fit-content"> <div class="channel-profile">)' | head -1 | tr '\0' '\n'`
channel="${channel##/}"
if [[ -n $channel ]]
then
page_ext="${instance}/feed/${channel}"
fi

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# check for explicit feed link
page_ext=`echo $content | grep -Po "(?<=<link href=').*?(?=' rel='alternate' type='application/rss\+xml'>)" | head -1`
page_ext=${page_ext##*href=\'}
# if explicit feed link not found get user URL and add .rss
if [[ "$page_ext" == "" ]]
then
determine_protocol
get_domain
username="${url##*//}"
username="${username#*/}"
if [[ "$username" == @* ]]
then
username="${username%%/*}"
elif [[ "$username" == users/* ]]
then
username="${username#*/}"
username="users/${username%%/*}"
fi
if [[ -n "$username" ]]
then
page_ext="${protocol}${domain}/${username}.rss"
fi
fi

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page_ext=`echo "$content" | grep -Po '(?<=&bullet;<a class="blatant" href=").*?(?=">Feed</a></div>)'`

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determine_protocol
get_domain
# check for explicit feed link
feed_link=`echo "$content" | grep -Po '(?<=<link href=").*?(?=" rel="alternate" type="application/atom\+xml">)' | head -1 | tr '\0' '\n'`
if [[ -n $feed_link ]]
then
page_ext="${protocol}${domain}${feed_link}"
fi
# if explicit feed link not found get user URL and add /feed.atom
if [[ "$page_ext" == "" ]]
then
determine_protocol
get_domain
username="${url##*//}"
username="${username#*/}"
if [[ "$username" == users/* ]]
then
username="${username#*/}"
username="users/${username%%/*}"
page_ext="${protocol}${domain}/${username}/feed.atom"
fi
fi

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page_ext=`echo "$content" | grep -Po "(?<=<link href=').*?(?=' rel='alternate' type='application/atom\+xml'>)" | head -1`
determine_protocol
get_domain
if [[ ! -n $page_ext ]]
then
# blog page
if [[ "$url" == *${domain}/~/* ]]
then
# get link to user page
user_link=`echo $content | grep -Po '(?<=<a rel="author" class="u-url" href=").*?(?="></a>)' | head -1`
if [[ -n $user_link ]]
then
# get Atom feed
page_ext="${user_link%%/}/atom.xml"
fi
fi
fi

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page_ext=`echo "$content" | grep -Po '(?<=<div class="button rss_button"><a href=").*?(?=" target="_blank">RSS</a></div>)' | head -1 | tr '\u' '\n'`

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users=`echo $content | grep -o -P '(?<=soundcloud:users:).*?(?=")' | head -1`
if [[ -n "$users" ]]
then
rss="https://feeds.soundcloud.com/users/soundcloud:users:"${users}"/sounds.rss"
page_ext=$rss
fi

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username=`echo "$content" | grep -o -P '(?<="creator_id":).*?(?=,)' | head -1`
# try multiple labels, in case some only work sometimes
if [[ ! -n "$username" ]]
then
username=`echo $content | grep -o -P '(?<="owner":{"id":).*?(?=,"display_name":")' | head -1`
fi
if [[ ! -n "$username" ]]
then
username=`echo $content | grep -o -P '(?<="item":{"@id":"https://vimeo.com/user).*?(?=","name":)' | head -1`
fi
# return URL only if username was found
if [[ -n "$username" ]]
then
rss="https://vimeo.com/user$username/videos/rss"
page_ext=$rss
fi

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# check for explicit feed link
page_ext=`echo "$content" | grep -Po '(?<=<link rel="alternate" type="application/rss\+xml" title=").*?(?=" />)' | head -1 | tr '\0' '\n'`
page_ext=${page_ext##*href=\"}
# if explicit feed link not found (article, not author page), truncate post URL to get author URL
if [[ "$page_ext" == "" ]]
then
# check for invalid link that cannot be shortened
# I don't think this is necessary, but just in case
if [[ "${url:0:8}" != "https://" && "${url:0:7}" != "http://" ]] && [[ "${url%%/}" == */* ]] || [[ "${url%%/}" == http*://*/* ]]
then
# truncate tailing slash (if applicable)
rss=${url%%/}
# truncate last item
rss=${rss%/*}
# add /feed/
page_ext=${rss}/feed/
fi
fi

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# if page is a channel page, use canonical link to determine channel id
try1=`echo "$content" | grep -Po '(?<=<link rel="canonical" href="https://www.youtube.com/channel/).*?(?=">)'`
if [[ -n "$try1" ]]; then
channel_id="$try1"
else
# else (e.g., video page) extract just channel id from metadata
try2=`echo "$content" | grep -Po '(?<="channelId":").+?(?=")' | head -1`
if [[ -n "$try2" ]]; then
channel_id="$try2"
fi
fi
# if channel id successfully extracted
if [[ -n ${channel_id} ]]
then
rss="https://www.youtube.com/feeds/videos.xml?channel_id=${channel_id}"
page_ext=$rss
fi

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# must be able to download a new version
if [[ ! -O .. && $EUID -ne 0 ]]
then
error "Please run as root or the owner of this directory."
exit
fi
# if it's the git version, just git pull
if [[ -d .git ]]
then
git pull
fi

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scripts/url-extractors/chirbit Normal file
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# can only extract feed from URL if it's chirbit.com
if [[ $url == *"chirbit.com/"* ]]
then
# get username (cut off https://www.chirbit.com/ from front)
username=${url##*chirbit.com/}
# cut off any extra stuff from end
username=${username%%/*}
if [[ -n $username ]]
then
# prepend chirbit URL and append /rss to form feed
rss="https://www.chirbit.com/${username}/rss"
url_ext=$rss
fi
fi

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scripts/url-extractors/deviantart Normal file
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# get username (cut off https://www.deviantart.com/ from front)
username=${url##*deviantart.com/}
# cut off any extra stuff from end
username=${username%%/*}
if [[ -n $username ]]
then
rss="https://backend.deviantart.com/rss.xml?type=deviation&q=by%3A${username}+sort%3Atime+meta%3Aall"
url_ext=$rss
fi

7
scripts/url-extractors/hugo Normal file
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determine_protocol
get_domain
if [[ -n "$domain" ]]
then
url_ext="${protocol}${domain}/index.xml"
fi

39
scripts/url-extractors/invidious Normal file
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# determine whether HTTP or HTTPS
# Tor instances may not use HTTPS
determine_protocol
get_domain
instance=${protocol}${domain}
# get feed if able
channel_id=""
list=""
if [[ $url == *"/channel/"* ]]
then
channel_id=${url#*/channel/}
# Invidious just redirects /user/ to /channel/ anyway
elif [[ $url == *"/user/"* ]]
then
channel_id=${url#*/user/}
# playlist
elif [[ $url == *"&list="* ]]
then
list=${url#*&list=}
list=${list%%&*}
fi
# trim extra arguments
channel_id=${channel_id%%\?*}
channel_id=${channel_id%%\&*}
if [[ -n $channel_id ]]
then
channel_id=${channel_id%%/*}
rss="${instance}/feed/channel/${channel_id}"
url_ext=$rss
elif [[ -n $list ]]
then
rss="${instance}/feed/playlist/${list}"
url_ext=$rss
fi

16
scripts/url-extractors/nitter Normal file
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determine_protocol
get_domain
instance=${protocol}${domain}
# get username
username=${url##*//}
username=${username#*/}
username=${username%%/*}
# get feed if able
if [[ -n $username ]]
then
rss="${instance}/${username}/rss"
url_ext=$rss
fi

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scripts/url-extractors/plume Normal file
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determine_protocol
get_domain
# user page
if [[ "$url" == *${domain}/@/* ]]
then
# Atom feed should be at domain/@/username/atom.xml
username=${url##*${domain}/@/}
username=${username%%/*}
url_ext="${protocol}${domain}/@/${username}/atom.xml"
fi

6
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# cut off trailing slash if present (to prevent duplicates)
url=${url%%/}
# append /rss to form feed
rss=${url}/.rss
url_ext=$rss

31
scripts/url-extractors/tumblr Normal file
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# not all Tumblr blogs support HTTPS
determine_protocol
get_domain
# require subdomain
if [[ $domain == "tumblr.com" ]]
then
error "Must be on a subdomain, e.g., username.tumblr.com"
fail
fi
# cut off end of page thing that gets appended sometimes
page=${url%%'#_=_'}
# cut off trailing slash if present (to prevent duplicates)
page=${page%%/}
# strip domain
page=${page##*tumblr.com}
page=${page##/}
# get rss
if [[ -n $page ]]
then
rss=${protocol}${domain}/${page}/rss
else
rss=${protocol}${domain}/rss
fi
url_ext=$rss

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# only able to extract from URL if URL is user page
if [[ $url == *"vimeo.com/user"* ]]
then
# get username (cut off https://vimeo.com/user from front)
username=${url##*vimeo.com/user}
# cut off any extra stuff from end
username=${username%%/*}
if [[ -n $username ]]
then
# prepend vimeo URL and append /rss to form feed
rss="https://vimeo.com/user${username}/videos/rss"
url_ext=$rss
fi
fi

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if [[ $url == *"youtube.com/channel/"* ]]
then
channel_id=${url#*youtube.com/channel/}
channel_id=${channel_id%%/*}
channel_id=${channel_id%%\?*}
channel_id=${channel_id%%\&*}
rss="https://www.youtube.com/feeds/videos.xml?channel_id=$channel_id"
url_ext=$rss
elif [[ $url == *"youtube.com/user/"* ]]
then
username=${url#*youtube.com/user/}
username=${username%%/*}
username=${username%%\?*}
username=${username%%\&*}
rss="https://www.youtube.com/feeds/videos.xml?user=$username"
url_ext=$rss
elif [[ $url == *"youtube.com/playlist/?list="* || $url == *"youtube.com/"*"&list="* ]]
then
list=${url#*list=}
list=${list%%&*}
rss="https://www.youtube.com/feeds/videos.xml?playlist_id=$list"
url_ext=$rss
fi

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## Sample config file
## Uncomment lines by removing the # to use them.
## Run in non-network mode (only try to determine feed from URL, do not download the page)
# -n
## Use SOCKS5 proxy on localhost:9150
# -p socks5h://localhost:9150
## Run in quiet mode (do not show output from curl)
# -q
## Pretend to be Tor Browser to evade Cloudflare blocks while using Tor
## NOTE: This option does NOT itself set a Tor proxy. Please do so with -p.
# -t