Cetrizine

Cetrizine is a discord bot that hopes to archive ~~everything~~ all messages, images, attachments, channel/server structure, and all data sent and/or stored by discord.

Setup database

Cetrizine requires a Postgresql 11 database. See for example https://tecadmin.net/install-postgresql-server-on-ubuntu/

Create a database:
```
createdb cetrizine
```
Figure out what the path is for your database, which starts with postgres://
- If you're running for development and want to connect to a local database via unix socket, the path will look like (although see note about special characters):
```
postgres://$USER@%2Fvar%2Frun%2Fpostgresql:$PORT/$DB
```
  So, if your username is shelvacu, postgres is running on port 5432 (the default if there is one version of postgres running on the system), and the database name is cetrizine as above, the path will be:
```
postgres://shelvacu@%2Fvar%2Frun%2Fpostgresql:5432/cetrizine
```
- If you're connecting via TCP with a username and password, it's pretty straightforward (but see note about special characters):
```
postgres://$USER:$PASS@$IP_OR_DOMAIN:$PORT/$DB
```
  Example:
```
postgres://shelvacu:letmein@awesomedb.example.com:5432/cetrizine
```
- A note about special characters: You must url-encode any special characters (such as %,/,@,",,, etc) in the user, pass, or shudders database name. You can do this with Ruby, Python, or whatever you're comfortable with.
  
  Examples, assuming the password is "abc/def@ghi
```
ruby -ruri -e 'puts URI.encode_www_form_component(ARGV[0])' '"abc/def@ghi'
```
```
python3 -c 'import urllib.parse;import sys;print(urllib.parse.quote(sys.argv[1], safe=""))' '"abc/def@ghi'
```
  These should both give you %22abc%2Fdef%40ghi

Compile and run

# grab the repo:
git clone --recurse-submodules https://github.com/shelvacu/cetrizine
cd cetrizine
# build (development mode):
cargo build --help
# build (development mode) if needed and run:
cargo run -- --help
# build (release mode)
cargo build --release
# build (release mode) if needed and run:
cargo run --release -- --help

Cetrizine requires the postgres path from above and a discord token which you can get by making an application at https://discordapp.com/developers/applications/. The first time cetrizine runs (when the database is empty) you must also supply --init-db.

The postgres path and discord token can both be specified as an argument or pulled from the environment:

./target/release/cetrizine --token "discord.token.here" --postgres-path "postgres://path/db --init-db"

DISCORD_TOKEN="discord.token.here" POSTGRES_PATH="postgres://path/db" ./target/release/cetrizine --init-db

License

Cetrizine is wholly distributed under the terms of both the MIT license and the Apache License (Version 2.0), at your option.

See LICENSE-APACHE and LICENSE-MIT for details.