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/*! ## Async client ``` use networking::{asyncronous::AsyncHost, ArtificeConfig, ArtificePeer}; use std::fs::File; use std::io::Read; #[tokio::main] async fn main() -> Result<(), Box<dyn std::error::Error>> { let mut config_file = File::open("host.json").unwrap(); let mut conf_vec = String::new(); config_file.read_to_string(&mut conf_vec).unwrap(); let config: ArtificeConfig = serde_json::from_str(&conf_vec).unwrap(); let mut file = File::open("peer.json").unwrap(); let mut invec = Vec::new(); file.read_to_end(&mut invec).unwrap(); let string = String::from_utf8(invec).unwrap(); // println!("invec: {}", invec); let peer: ArtificePeer = serde_json::from_str(&string).unwrap(); let host = AsyncHost::client_only(&config).await.unwrap(); let mut stream = host.connect(peer).await.unwrap(); let mut buffer = Vec::new(); println!("about to read from sream"); println!( "got {} bytes from server", stream.recv(&mut buffer).await.unwrap() ); println!("read from stream"); let string = String::from_utf8(buffer).unwrap(); println!("got message: {} from server", string); Ok(()) } ``` ## Async Server ``` use networking::{asyncronous::AsyncHost, ArtificeConfig, ArtificePeer}; use std::fs::File; use std::io::Read; #[tokio::main] async fn main() -> Result<(), Box<dyn std::error::Error>> { // currently not functioning let mut config_file = File::open("host.json").unwrap(); let mut conf_vec = String::new(); config_file.read_to_string(&mut conf_vec).unwrap(); let config: ArtificeConfig = serde_json::from_str(&conf_vec).unwrap(); let mut host = AsyncHost::from_host_config(&config).await.unwrap(); let mut file = File::open("peer.json").unwrap(); let mut invec = String::new(); file.read_to_string(&mut invec).unwrap(); let peer: ArtificePeer = serde_json::from_str(&invec).unwrap(); while let Some(Ok(mut stream)) = host.incoming()?.await { // make sure you got a connection from the correct peer assert_eq!(peer, *stream.peer()); println!("sending message hello world"); stream.send(b"hello world").await.unwrap(); } Ok(()) } ``` ## Sync Client ``` use networking::{ArtificeConfig, ArtificeHost, ArtificePeer}; use std::fs::File; use std::io::Read; fn main() { let mut config_file = File::open("host.json").unwrap(); let mut conf_vec = String::new(); config_file.read_to_string(&mut conf_vec).unwrap(); let config: ArtificeConfig = serde_json::from_str(&conf_vec).unwrap(); let mut file = File::open("peer.json").unwrap(); let mut invec = Vec::new(); file.read_to_end(&mut invec).unwrap(); let string = String::from_utf8(invec).unwrap(); // println!("invec: {}", invec); let peer: ArtificePeer = serde_json::from_str(&string).unwrap(); let host = ArtificeHost::client_only(&config); let mut stream = host.connect(peer).unwrap(); let mut buffer = Vec::new(); println!("about to read from sream"); println!( "got {} bytes from server", stream.recv(&mut buffer).unwrap() ); println!("read from stream"); let string = String::from_utf8(buffer).unwrap(); println!("got message: {} from server", string); //stream.write(&buffer).unwrap(); } ``` ## Sync Server ``` use networking::{ArtificeConfig, ArtificeHost, ArtificePeer}; use std::fs::File; use std::io::{Read}; fn main() { let mut config_file = File::open("host.json").unwrap(); let mut conf_vec = String::new(); config_file.read_to_string(&mut conf_vec).unwrap(); let config: ArtificeConfig = serde_json::from_str(&conf_vec).unwrap(); let host = ArtificeHost::from_host_data(&config).unwrap(); let mut file = File::open("peer.json").unwrap(); let mut invec = String::new(); file.read_to_string(&mut invec).unwrap(); let peer: ArtificePeer = serde_json::from_str(&invec).unwrap(); for netstream in host { let mut stream = netstream.unwrap(); println!("about to write to stream"); stream .send(&"hello world".to_string().into_bytes()) .unwrap(); // do something with the stream example: if *stream.peer() == peer { // correct peer } } } ``` */ #![feature(maybe_uninit_ref)] #![feature(ip)] #[macro_use] extern crate serde_derive; /// contains blowfish encryption wrapper, as well as storage solution (serde) for BigUint principly BigNum pub mod encryption; pub mod error; pub use encryption::*; pub mod asyncronous; /// contains the ArtificePeer struct pub mod peers; /// used for permission requests in the manager crate pub mod query; pub mod syncronous; use crate::encryption::PubKeyPair; pub use peers::*; use rsa::RSAPublicKey; use std::net::SocketAddr; use std::{ net::UdpSocket, sync::mpsc::{channel, RecvTimeoutError, Sender}, thread, time::Duration, }; /// used to build and configure the local host #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)] pub struct ArtificeConfig { broadcast: bool, address: Layer3Addr, port: u16, host: ArtificeHostData, } impl ArtificeConfig { /// used to create new host, primarily designed for use by the installer crate pub fn generate(address: Layer3Addr) -> Self { let broadcast = false; let port = 6464; let host = ArtificeHostData::default(); Self { broadcast, address, port, host, } } pub fn host_data(&self) -> ArtificeHostData { self.host.clone() } pub fn broadcast(&self) -> bool { self.broadcast } pub fn port(&self) -> u16 { self.port } pub fn address(&self) -> Layer3Addr { self.address } } /// provides a means of saving private keys to files, because the process of generating the keys takes a really long time, but creating them from existing values does not #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, PartialOrd, Ord)] pub struct ArtificeHostData { priv_key: PrivKeyComp, global_peer_hash: String, } impl Default for ArtificeHostData { fn default() -> Self { let global_peer_hash = random_string(50); let priv_key = PrivKeyComp::generate().unwrap(); Self { priv_key, global_peer_hash, } } } impl ArtificeHostData { pub fn private_key(&self) -> PrivKeyComp { self.priv_key.clone() } pub fn global_peer_hash(&self) -> String { self.global_peer_hash.clone() } } /// contains peer information sent accross the network in an effort to prevent man in the middle attacks #[derive(Debug, Clone, Eq, Serialize, Deserialize)] pub struct Header { peer: ArtificePeer, pubkey: PubKeyPair, packet_len: usize, } impl PartialEq for Header { fn eq(&self, other: &Self) -> bool { self.peer == other.peer && self.pubkey == other.pubkey } } impl Header { pub fn new(peer: ArtificePeer, pubkey: PubKeyPair) -> Self { Self { peer, pubkey, packet_len: 0, } } pub fn peer(&self) -> &ArtificePeer { &self.peer } pub fn pubkey(&self) -> RSAPublicKey { RSAPublicKey::new(self.pubkey.n(), self.pubkey.e()).unwrap() } pub fn packet_len(&self) -> usize { self.packet_len } pub fn set_len(&mut self, len: usize) { self.packet_len = len; } } #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize, Hash)] pub struct StreamHeader { global_hash: String, peer_hash: String, packet_len: usize, } impl StreamHeader { pub fn new(global_hash: String, peer_hash: String, packet_len: usize) -> Self { Self { global_hash, peer_hash, packet_len, } } } /// trait used to implement common features between async and sync implementations of networking pub trait ArtificeStream {} pub trait ArtificeHost { fn begin_broadcast(socket_addr: SocketAddr) -> std::io::Result<Sender<bool>> { let (sender, recv) = channel(); let socket = UdpSocket::bind(socket_addr)?; socket.set_broadcast(true)?; thread::spawn(move || loop { match recv.recv_timeout(Duration::from_millis(200)) { Ok(_) => break, Err(e) => match e { RecvTimeoutError::Timeout => continue, RecvTimeoutError::Disconnected => break, }, } }); Ok(sender) } fn stop_broadcasting(&self); }