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b/src/chat_backend/Cargo.toml new file mode 100644 index 0000000..10075e6 --- /dev/null +++ b/src/chat_backend/Cargo.toml @@ -0,0 +1,15 @@ +[package] +name = "chat_backend" +version = "0.1.0" +edition = "2021" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[lib] +crate-type = ["cdylib"] + +[dependencies] +candid = "0.10" +ic-cdk = "0.12" +ic-cdk-timers = "0.6" # Feel free to remove this dependency if you don't need timers +serde = { version = "1.0.196", features = ["derive"] } diff --git a/src/chat_backend/chat_backend.did b/src/chat_backend/chat_backend.did new file mode 100644 index 0000000..80b46bc --- /dev/null +++ b/src/chat_backend/chat_backend.did @@ -0,0 +1,9 @@ +type Message = record + { + message: text; + } + +service : { + "message_query": (Message) -> (Message) query; + "message_update": (Message) -> (); +} diff --git a/src/chat_backend/src/connections.rs b/src/chat_backend/src/connections.rs new file mode 100644 index 0000000..333ca27 --- /dev/null +++ b/src/chat_backend/src/connections.rs @@ -0,0 +1,179 @@ +use std::net::{TcpListener, TcpStream}; +use std::io::{Read, Write, self}; +use std::env; +use std::str::from_utf8; +use candid::{CandidType, Deserialize}; + + + +thread_local! + { + pub static MESSAGES: Vec = vec![]; + } + +#[derive(CandidType, Deserialize, Clone)] +pub struct Message + { + message: String, + } + +pub enum EnvArg + { + Client, + Server, + Fail, + } +impl EnvArg + { + pub fn c_connect() -> bool + { + let mut messages:Vec = vec![]; + match TcpStream::connect("localhost:2121") + { + Ok(mut socket) => + { + println!("Connected"); + let stay = true; + while stay + { + socket.write(take_string().as_bytes()).unwrap(); + let mut data = [0 as u8; 1024]; + match socket.read(&mut data) + { + Ok(_) => + { + if data[0] != 0 + { + println!("{}", from_utf8(&data).unwrap()); + let message = Message + { + message: from_utf8(&data).unwrap().to_string(), + }; + messages.push(message); + } + } + Err(e) => + { + println!("Failed to receive data: {}", e); + return false; + } + } + } + } + Err(e) => + { + println!("Failed to connect: {}", e); + return false; + } + } + return true; + } + + pub fn s_connect() -> bool + { + let mut messages:Vec = vec![]; + let socket = TcpListener::bind("localhost:2121"); + for stream in socket.expect("Can't Check Connections").incoming() + { + match stream + { + Ok(mut stream) => + { + let stay = true; + while stay + { + let mut data = [0 as u8; 1024]; + match stream.read(&mut data) + { + Ok(a) => + { + if a == 0 + { + println!("Connection Closed"); + return false; + } + println!("{}", stream.write(&data).unwrap()); + let message = Message + { + message: from_utf8(&data).unwrap().to_string(), + }; + messages.push(message); + } + Err(e) => + { + println!("Failed to Read: {}", e); + return false; + } + } + } + } + Err(e) => + { + println!("Something Happened: {}", e); + } + } + } + + return true; + } + } + +pub fn take_arg() -> EnvArg + { + let args:Vec = env::args().collect(); + match args.len() + { + 1 => println!("Give an argument"), + 2 => + { + if args[1] == "c" + { + return EnvArg::Client; + } + else if args[1] == "s" + { + return EnvArg::Server; + } + else + { + println!("Give valid argument, c or s"); + } + }, + _ => println!("Only one argument is allowed"), + } + return EnvArg::Fail; + } + +fn take_string() -> String + { + let mut input = String::new(); + io::stdin().read_line(&mut input).expect("Failed to Read from Console"); + input + } + +fn client() + { + println!("Client"); + if EnvArg::c_connect() != true + { + println!("Client Exit"); + } + } +fn server() + { + println!("Server"); + if EnvArg::s_connect() != true + { + println!("Server Exit"); + } + } +pub fn start() + { + println!("Hello, world!"); + match take_arg() + { + EnvArg::Client => client(), + EnvArg::Server => server(), + EnvArg::Fail => return + } + } \ No newline at end of file diff --git a/src/chat_backend/src/lib.rs b/src/chat_backend/src/lib.rs new file mode 100644 index 0000000..6efc970 --- /dev/null +++ b/src/chat_backend/src/lib.rs @@ -0,0 +1,19 @@ +use std::ops::DerefMut; + +use connections::{Message, MESSAGES}; + +pub mod connections; + +#[ic_cdk::update] +fn message_update(message: connections::Message) + { + MESSAGES.with(|a|{ + let mut x = a.clone().deref_mut().to_vec(); + x.push(message); + }); + } +#[ic_cdk::query] +fn message_query(message: connections::Message) -> connections::Message + { + message + }