mirror of https://github.com/MedzikUser/servers
initial commit
This commit is contained in:
commit
a91b0cb788
|
|
@ -0,0 +1 @@
|
|||
/target
|
||||
|
|
@ -0,0 +1,262 @@
|
|||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
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"windows_i686_msvc",
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"windows_x86_64_gnu",
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"windows_x86_64_msvc",
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]
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name = "windows_x86_64_gnu"
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version = "0.36.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "windows_x86_64_msvc"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
|
@ -0,0 +1,11 @@
|
|||
[package]
|
||||
name = "servers"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
anyhow = "1.0.57"
|
||||
async-trait = "0.1.56"
|
||||
libloading = "0.7.3"
|
||||
log = "0.4.17"
|
||||
tokio = { version = "1.19.0", features = ["rt-multi-thread", "macros", "net", "io-std", "io-util"] }
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
MIT License
|
||||
|
||||
Copyright (c) 2022 Medzik
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
#![allow(clippy::unused_io_amount)]
|
||||
|
||||
use tokio::{
|
||||
io::{AsyncReadExt, AsyncWriteExt},
|
||||
net::TcpStream,
|
||||
};
|
||||
|
||||
pub struct Client {
|
||||
pub stream: TcpStream,
|
||||
}
|
||||
|
||||
impl Client {
|
||||
/// Create new Client
|
||||
pub fn new(stream: TcpStream) -> Self {
|
||||
Self { stream }
|
||||
}
|
||||
|
||||
/// Read message/buffer from Client
|
||||
pub async fn read(&mut self) -> anyhow::Result<String> {
|
||||
let mut buf = [0; 1024];
|
||||
|
||||
self.stream.read(&mut buf).await?;
|
||||
|
||||
let encoded = String::from_utf8(buf.to_vec())?.replace('\0', "");
|
||||
|
||||
Ok(encoded)
|
||||
}
|
||||
|
||||
/// Send message to Client
|
||||
pub async fn send(&mut self, content: &str) -> anyhow::Result<()> {
|
||||
self.stream.write_all(format!("{content}\n\r").as_bytes()).await?;
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
use std::{any::Any, sync::Arc};
|
||||
|
||||
use async_trait::async_trait;
|
||||
|
||||
use crate::{Client, commands};
|
||||
|
||||
#[async_trait]
|
||||
pub trait Command: Any + Send + Sync {
|
||||
/// Command name
|
||||
fn name(&self) -> &'static str;
|
||||
/// Command help message
|
||||
fn help(&self) -> &'static str;
|
||||
/// Command function
|
||||
async fn execute(
|
||||
&self,
|
||||
client: &mut Client,
|
||||
args: Vec<&str>,
|
||||
plugins: &CommandManagerType,
|
||||
);
|
||||
}
|
||||
|
||||
pub struct CommandManager {
|
||||
/// Vector with plugins
|
||||
pub commands: Vec<Box<dyn Command>>,
|
||||
}
|
||||
|
||||
impl CommandManager {
|
||||
pub fn new() -> Self {
|
||||
Self {
|
||||
commands: Vec::new(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for CommandManager {
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
}
|
||||
|
||||
pub type CommandManagerType = Vec<Arc<Box<dyn Command>>>;
|
||||
|
||||
pub fn register_commands() -> CommandManagerType {
|
||||
let mut command_manager = CommandManager::new();
|
||||
|
||||
for command in commands::register_commands() {
|
||||
command_manager.commands.push(command)
|
||||
}
|
||||
|
||||
// create Arc in Vector
|
||||
let mut commands: CommandManagerType = Vec::new();
|
||||
for command in command_manager.commands {
|
||||
commands.push(Arc::new(command))
|
||||
}
|
||||
|
||||
commands
|
||||
}
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
use async_trait::async_trait;
|
||||
|
||||
use crate::{command_handler::Command, CommandManagerType};
|
||||
|
||||
pub struct CommandHelp;
|
||||
|
||||
#[async_trait]
|
||||
impl Command for CommandHelp {
|
||||
fn name(&self) -> &'static str {
|
||||
"/help"
|
||||
}
|
||||
|
||||
fn help(&self) -> &'static str {
|
||||
"show help"
|
||||
}
|
||||
|
||||
async fn execute(
|
||||
&self,
|
||||
client: &mut crate::Client,
|
||||
_args: Vec<&str>,
|
||||
commands: &CommandManagerType,
|
||||
) {
|
||||
for command in commands {
|
||||
client
|
||||
.send(&format!("{} - {}", command.name(), command.help()))
|
||||
.await
|
||||
.expect("send message");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
mod help;
|
||||
|
||||
pub use help::*;
|
||||
|
||||
use crate::command_handler::Command;
|
||||
|
||||
pub fn register_commands() -> Vec<Box<dyn Command>> {
|
||||
let mut commands: Vec<Box<dyn Command>> = Vec::new();
|
||||
|
||||
commands.push(Box::new(CommandHelp));
|
||||
|
||||
commands
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
mod client;
|
||||
mod command_handler;
|
||||
mod commands;
|
||||
mod plugin_loader;
|
||||
|
||||
pub use client::*;
|
||||
pub use command_handler::*;
|
||||
pub use plugin_loader::*;
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
use servers::{loader, Client, PluginManagerType, register_commands, CommandManagerType};
|
||||
use tokio::{io::AsyncWriteExt, net::TcpListener};
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> anyhow::Result<()> {
|
||||
// listen Tcp server
|
||||
let listener = TcpListener::bind("0.0.0.0:9999").await?;
|
||||
|
||||
// load plugins
|
||||
let plugin_manager = loader()?;
|
||||
|
||||
// load command
|
||||
let commands_manager = register_commands();
|
||||
|
||||
// Accepts a new incoming connection from this listener.
|
||||
while let Ok((stream, _address)) = listener.accept().await {
|
||||
let client = Client::new(stream);
|
||||
|
||||
// handle client connection in new thread
|
||||
tokio::spawn(handle_connection(client, (*plugin_manager).to_vec(), (*commands_manager).to_vec()));
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn handle_connection(mut client: Client, plugins: PluginManagerType, commands: CommandManagerType) -> anyhow::Result<()> {
|
||||
println!("New Client: {:?}", client.stream.peer_addr()?);
|
||||
|
||||
loop {
|
||||
// read client message/buffer
|
||||
let buf = client.read().await?;
|
||||
|
||||
// split message by whitespace
|
||||
let args: &Vec<&str> = &buf.split_ascii_whitespace().collect();
|
||||
|
||||
// get command from args
|
||||
let cmd = args[0];
|
||||
|
||||
println!("{:?}", &args);
|
||||
|
||||
for command in &commands {
|
||||
if cmd == command.name() {
|
||||
println!("s");
|
||||
command.execute(&mut client, args[1..args.len()].to_vec(), &commands).await;
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
// search command in plugins
|
||||
for plugin in &plugins {
|
||||
// if command found execute plugin
|
||||
if cmd == plugin.command() {
|
||||
plugin.execute(&mut client, args[1..args.len()].to_vec())
|
||||
}
|
||||
}
|
||||
|
||||
// if an I/O or EOF error, abort the connection
|
||||
if client.stream.flush().await.is_err() {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
|
@ -0,0 +1,105 @@
|
|||
use std::{any::Any, fs, sync::Arc};
|
||||
|
||||
use libloading::{Library, Symbol};
|
||||
use log::{debug, trace};
|
||||
|
||||
use crate::Client;
|
||||
|
||||
/// A plugin which allows you to add extra functionality.
|
||||
pub trait Plugin: Any + Send + Sync {
|
||||
/// Get a name describing the `Plugin`.
|
||||
fn name(&self) -> &'static str;
|
||||
/// A function that runs immediately after plugin loading.
|
||||
/// Usually used for initialization.
|
||||
fn on_plugin_load(&self);
|
||||
/// A function that runs immediately before the plugin is unloaded.
|
||||
/// Use this if you want to do any cleanup.
|
||||
fn on_plugin_unload(&self);
|
||||
/// Plugin command.
|
||||
/// For example: `/command`
|
||||
fn command(&self) -> &'static str;
|
||||
/// Help message of this command.
|
||||
fn help(&self) -> &'static str;
|
||||
/// The function will be executed, when sending plugin command.
|
||||
fn execute(&self, client: &mut Client, args: Vec<&str>);
|
||||
}
|
||||
|
||||
pub struct PluginManager {
|
||||
/// Vector with loaded plugins
|
||||
pub plugins: Vec<Box<dyn Plugin>>,
|
||||
}
|
||||
|
||||
impl PluginManager {
|
||||
/// Create empty `PluginManager`
|
||||
pub fn new() -> Self {
|
||||
Self {
|
||||
plugins: Vec::new(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Unload all plugins and loaded plugin libraries, making sure to fire
|
||||
/// their `on_plugin_unload()` methods so they can do any necessary cleanup.
|
||||
pub fn unload(&mut self) {
|
||||
debug!("Unloading plugins");
|
||||
|
||||
for plugin in self.plugins.drain(..) {
|
||||
trace!("Firing on_plugin_unload for {:?}", plugin.name());
|
||||
plugin.on_plugin_unload();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for PluginManager {
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
}
|
||||
|
||||
pub trait PluginRegistrar {
|
||||
fn register_plugin(&mut self, plugin: Box<dyn Plugin>);
|
||||
}
|
||||
|
||||
impl PluginRegistrar for PluginManager {
|
||||
fn register_plugin(&mut self, plugin: Box<dyn Plugin>) {
|
||||
self.plugins.push(plugin)
|
||||
}
|
||||
}
|
||||
|
||||
pub type PluginManagerType = Vec<Arc<Box<dyn Plugin>>>;
|
||||
|
||||
pub fn loader() -> anyhow::Result<PluginManagerType> {
|
||||
// get path to .so lib from command argument
|
||||
let config_dir = "./plugins";
|
||||
let paths = fs::read_dir(config_dir)?;
|
||||
|
||||
// create a plugin manager where all loaded plugins will be located
|
||||
let mut plugin_manager = PluginManager::new();
|
||||
|
||||
// for all plugin in directory
|
||||
for path in paths {
|
||||
// get library file path
|
||||
let path = path?.path();
|
||||
|
||||
// loading library with .so is unsafe
|
||||
unsafe {
|
||||
// load library
|
||||
// Box::new and Box::leak must be there because if it isn't there it throws a segmentation fault
|
||||
let lib = Box::leak(Box::new(Library::new(path)?));
|
||||
|
||||
// get `plugin_entry` from library
|
||||
let func: Symbol<unsafe extern "C" fn(&mut dyn PluginRegistrar) -> ()> =
|
||||
lib.get(b"plugin_entry")?;
|
||||
|
||||
// execute initial function
|
||||
func(&mut plugin_manager);
|
||||
}
|
||||
}
|
||||
|
||||
// create Arc in Vector
|
||||
let mut plugins: PluginManagerType = Vec::new();
|
||||
for plugin in plugin_manager.plugins {
|
||||
plugins.push(Arc::new(plugin))
|
||||
}
|
||||
|
||||
Ok(plugins)
|
||||
}
|
||||
Loading…
Reference in New Issue