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Nikita Vilunov 2023-10-10 02:18:50 +02:00
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## Dependency diagram of the project
```mermaid
graph TD;
lavina-->mgmt-api;
lavina-->projection-irc;
lavina-->projection-xmpp;
lavina-->lavina-core;
projection-irc-->proto-irc;
projection-irc-->lavina-core;
projection-xmpp-->proto-xmpp;
projection-xmpp-->lavina-core;
sim-irc-->proto-irc;
sim-irc-->mgmt-api;
sim-xmpp-->proto-xmpp;
sim-xmpp-->mgmt-api;
workspace-->lavina;
workspace-->sim-irc;
workspace-->sim-xmpp;
```
A few rules:
- Only projections should be direct deps of `lavina`, there is no need to depend on `proto-*` crates.
- On the other hand, projections should not be dependencies of `sim-*` crates.
- `lavina-core` does not depend on protocol-specific crates.

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## Dependency diagram of the project
```mermaid
graph TD;
lavina-->mgmt-api;
lavina-->projection-irc;
lavina-->projection-xmpp;
lavina-->lavina-core;
projection-irc-->proto-irc;
projection-irc-->lavina-core;
projection-xmpp-->proto-xmpp;
projection-xmpp-->lavina-core;
sim-irc-->proto-irc;
sim-irc-->mgmt-api;
sim-xmpp-->proto-xmpp;
sim-xmpp-->mgmt-api;
workspace-->lavina;
workspace-->sim-irc;
workspace-->sim-xmpp;
```
A few rules:
- Only projections should be direct deps of `lavina`, there is no need to depend on `proto-*` crates.
- On the other hand, projections should not be dependencies of `sim-*` crates.
- `lavina-core` does not depend on protocol-specific crates.
## Lavina
**lavina-core**. This crate implements the core functionality of the server not specific to public interfaces. It includes handling general persistence, message casts, in future room authorization and cross-node communication.
**lavina**. The application crate. It's used to link other crates together and build the final binary with support for all protocols.
**mgmt-api**. Model definitions for management API to be used both in the server and client implementations.
## IRC
**proto-irc**. Protocol definition for IRC, includes both server-side and client-side messages and both serialization and deserialization where needed.
**projection-irc**. Projection of lavina-core onto the IRC client-to-server protocol implementation.
**sim-irc**. Future implementation of IRC client simulator to be used in integration and load testing.

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openssl x509 -in certs/xmpp.pem -text
Make sure `xmpp.key` starts and ends with:
```
-----BEGIN RSA PRIVATE KEY-----
-----END RSA PRIVATE KEY-----
```
## Protocol Specs
XMPP XSDs - [https://xmpp.org/schemas/index.shtml]
IRC modern spec - [https://modern.ircdocs.horse/]
## Initializing DB with some users
sqlite3 db.sqlite < test/init_state.sql
Same test migration could be used for integration tests in the future.
## Using irssi
irssi in a TUI-based IRC client.

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# Building & Running Lavina
## Configuration
A server instance must be supplied with a configuration file to start up. The path to configuration is specified with a required CLI argument `--config <path>`.
Example configuration:
```toml
[telemetry]
# address for management and telemetry API
# should be kept private
listen_on = "127.0.0.1:8080"
[irc]
listen_on = "127.0.0.1:6667"
server_name = "irc.localhost"
[xmpp]
listen_on = "127.0.0.1:5222"
cert = "./certs/xmpp.pem"
key = "./certs/xmpp.key"
[storage]
db_path = "db.sqlite"
```
## With Docker Compose
Example `docker-compose.yml` file:
```yaml
version: '3.0'
services:
lavina:
image: git.vilunov.me/lavina/lavina:0.0.1
volumes:
- './config/:/etc/lavina/'
- './data/:/var/lib/lavina/'
ports:
- '5222:5222' # xmpp
- '6667:6667' # irc non-tls
- '127.0.0.1:1380:8080' # management http (private)
```
## With Cargo
You can run it via cargo:
cargo run -- --config config.toml
Or you can build it and run manually:
cargo build --release
./target/release/lavina --config config.toml

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Multiprotocol chat server based on open protocols.
- [How to run Lavina locally](docs/running.md)
- [Architectural diagrams](docs/flow.md)
- [Project structure](crates/readme.md)
## Goals
#### Support for multiple open protocols