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119 lines
4.1 KiB
Markdown
119 lines
4.1 KiB
Markdown
# snac
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A simple, minimalistic ActivityPub instance
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## Features
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- Lightweight, minimal dependencies
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- Extensive support of ActivityPub operations, e.g. write public notes, follow users, be followed, reply to the notes of others, admire wonderful content (like or boost), write private messages...
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- Multiuser
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- Mastodon API support, so Mastodon-compatible apps can be used
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- Simple but effective web interface
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- Easily-accessed MUTE button to silence morons
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- Tested interoperability with related software
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- No database needed
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- Totally JavaScript-free
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- No cookies either
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- Not much bullshit
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## About
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This program runs as a daemon (proxied by a TLS-enabled real httpd server) and provides the basic services for a Fediverse / ActivityPub instance (sharing messages and stuff from/to other systems like Mastodon, Pleroma, Friendica, etc.).
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This is not the manual; man pages `snac(1)` (user manual), `snac(5)` (formats) and `snac(8)` (administrator manual) are what you are looking for.
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`snac` stands for Social Networks Are Crap.
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## Building and installation
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This program is written in highly portable C. The only external dependencies are `openssl` and `curl`.
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On Debian/Ubuntu, you can satisfy these requirements by running
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```sh
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apt install libssl-dev libcurl4-openssl-dev
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```
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On OpenBSD you just need to install `curl`:
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```sh
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pkg_add curl
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```
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On FreeBSD, to install `curl` just type:
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```sh
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pkg install curl
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```
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On NetBSD, to install `curl` just type:
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```sh
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pkgin install curl
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```
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The source code is available [here](https://comam.es/what-is-snac).
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Run `make` and then `make install` as root.
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If you're compiling on NetBSD, you should use the specific provided Makefile and run `make -f Makefile.NetBSD` and then `make -f Makefile.NetBSD install` as root.
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From version 2.27, `snac` includes support for the Mastodon API; if you are not interested on it, you can compile it out by running
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```sh
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make CFLAGS=-DNO_MASTODON_API
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```
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If your compilation process complains about undefined references to `shm_open()` and `shm_unlink()` (it happens, for example, on Ubuntu 20.04.6 LTS), run it as:
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```sh
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make LDFLAGS=-lrt
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```
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If it still gives compilation errors (because your system does not implement the shared memory functions), you can fix it with
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```sh
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make CFLAGS=-DWITHOUT_SHM
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```
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See the administrator manual on how to proceed from here.
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## Testing via Docker
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A `docker-compose` file is provided for development and testing. To start snac with an nginx HTTPS frontend, run:
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```sh
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docker-compose build && docker-compose up
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```
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This will:
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- Start snac, storing data in `data/`
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- Configure snac to listen on port 8001 with a server name of `localhost` (see `examples/docker-entrypoint.sh`)
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- Create a new user `testuser` and print the user's generated password on the console (see `examples/docker-entrypoint.sh`)
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- Start nginx to handle HTTPS, using the certificate pair from `nginx-alpine-ssl/nginx-selfsigned.*` (see `examples/nginx-alpine-ssl/entrypoint.sh`)
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## Links of Interest
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- [Online snac manuals (user, administrator and data formats)](https://comam.es/snac-doc/).
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- [How to run your own ActivityPub server on OpenBSD via snac (by Jordan Reger)](https://man.sr.ht/~jordanreger/activitypub-server-on-openbsd/).
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- [How to install & run your own ActivityPub server on FreeBSD using snac, nginx, lets'encrypt (by gyptazy)](https://gyptazy.ch/blog/install-snac2-on-freebsd-an-activitypub-instance-for-the-fediverse/).
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- [How to install snac on OpenBSD without relayd (by @antics@mastodon.nu)](https://chai.guru/pub/openbsd/snac.html).
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- [Setting up Snac in OpenBSD (by Yonle)](https://wiki.ircnow.org/index.php?n=Openbsd.Snac).
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## Incredibly awesome CSS themes for snac
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- [A compilation of themes for snac (by Ворон)](https://codeberg.org/voron/snac-style).
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- [A cool, elegant theme (by Haijo7)](https://codeberg.org/Haijo7/snac-custom-css).
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- [A terminal-like theme (by Tetra)](https://codeberg.org/ERROR404NULLNOTFOUND/snac-terminal-theme).
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## License
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See the LICENSE file for details.
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## Author
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grunfink [@grunfink@comam.es](https://comam.es/snac/grunfink) with the help of others.
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Buy grunfink a coffee: https://ko-fi.com/grunfink
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