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Edward Shen 2021-02-03 20:40:06 -05:00
commit c446508829
Signed by: edward
GPG Key ID: 19182661E818369F
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1
.gitignore vendored Normal file
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**/target

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Cargo.lock generated Normal file
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Cargo.toml Normal file
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[workspace]
members = ["vtse-client", "vtse-common", "vtse-server"]

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vtse-client/Cargo.toml Normal file
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[package]
name = "vtse-client"
version = "0.1.0"
authors = ["Edward Shen <code@eddie.sh>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

3
vtse-client/src/main.rs Normal file
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fn main() {
println!("Hello, world!");
}

9
vtse-common/Cargo.toml Normal file
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[package]
name = "vtse-common"
version = "0.1.0"
authors = ["Edward Shen <code@eddie.sh>"]
edition = "2018"
[dependencies]
serde = { version = "1", features = ["derive"] }
thiserror = "1"

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vtse-common/src/lib.rs Normal file
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pub mod operations;
pub mod stock;
#[cfg(test)]
mod tests {
#[test]
fn it_works() {
assert_eq!(2 + 2, 4);
}
}

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vtse-common/src/operations.rs Normal file
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use crate::stock::StockName;
pub(crate) enum MarketOperation {
Buy,
Sell,
}

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vtse-common/src/stock.rs Normal file
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use serde::Deserialize;
use std::str::FromStr;
use thiserror::Error;
#[derive(Deserialize, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug, Default)]
pub struct StockName(String);
#[derive(Error, Debug)]
pub enum StockNameParseError {}
impl FromStr for StockName {
type Err = StockNameParseError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(Self(s.to_string()))
}
}
pub(crate) struct Stock {}

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vtse-server/Cargo.toml Normal file
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[package]
name = "vtse-server"
version = "0.1.0"
authors = ["Edward Shen <code@eddie.sh>"]
edition = "2018"
[dependencies]
vtse-common = { path = "../vtse-common" }
log = "0.4"
simple_logger = "1.11"
tokio = { version = "1", features = ["full"] }
tokio-stream = { version = "0.1", features = ["net"] }
anyhow = "1"
uuid = { version = "0.8", features = ["v4"] }
serde = { version = "1", features = ["derive"] }
serde_json = "1"
bytes = "1"

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vtse-server/src/main.rs Normal file
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use crate::operations::ServerOperation;
use anyhow::anyhow;
use bytes::BytesMut;
use log::{error, info};
use tokio::io::AsyncReadExt;
use tokio::net::{TcpListener, TcpStream};
use tokio_stream::{wrappers::TcpListenerStream, StreamExt};
mod operations;
pub(crate) type Result<T> = std::result::Result<T, anyhow::Error>;
#[tokio::main]
async fn main() -> Result<()> {
simple_logger::SimpleLogger::default().init()?;
let mut listener_stream = TcpListener::bind("localhost:8080")
.await
.map(TcpListenerStream::new)?;
info!("Successfully bound to port");
while let Some(Ok(stream)) = listener_stream.next().await {
tokio::task::spawn(async {
match handle_stream(stream).await {
Ok(_) => (),
Err(e) => error!("{}", e),
}
});
}
info!("Cleanly shut down. Goodbye!");
Ok(())
}
async fn handle_stream(mut socket: TcpStream) -> Result<()> {
// only accept data that can fit in 256 bytes
let mut buffer = BytesMut::with_capacity(256);
loop {
let bytes_read = socket.read_buf(&mut buffer).await?;
match bytes_read {
0 => return Err(anyhow!("Failed to read bytes, assuming socket is closed.")),
n => {
let data = buffer.split_to(n); // O(1)
let parsed = serde_json::from_slice::<ServerOperation>(&data)?;
match parsed {
ServerOperation::Query(op) => {
dbg!(op);
}
ServerOperation::Meta(op) => {
dbg!(op);
}
}
buffer.unsplit(data); // O(1)
}
}
buffer.clear();
}
}

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vtse-server/src/operations.rs Normal file
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use serde::Deserialize;
use vtse_common::stock::StockName;
#[derive(Deserialize, Debug, PartialEq)]
#[serde(untagged)]
pub(crate) enum ServerOperation {
Query(QueryOperation),
Meta(MetaOperation),
}
#[derive(Deserialize, Debug, PartialEq)]
#[serde(tag = "type", rename_all = "snake_case")]
pub(crate) enum QueryOperation {
StockInfo { stock: StockName },
}
#[derive(Deserialize, Debug, PartialEq)]
#[serde(tag = "type", rename_all = "snake_case")]
pub(crate) enum MetaOperation {
Register { username: String, password: String },
}
#[cfg(test)]
mod deserialize {
use super::*;
use serde_json::json;
use std::str::FromStr;
#[test]
fn server_op_is_transparent() {
assert_eq!(
serde_json::from_value::<ServerOperation>(json!({
"type": "stock_info",
"stock": "Gura",
}))
.unwrap(),
ServerOperation::Query(QueryOperation::StockInfo {
stock: StockName::from_str("Gura").unwrap()
})
)
}
#[test]
fn query_op() {
assert_eq!(
serde_json::from_value::<QueryOperation>(json!({
"type": "stock_info",
"stock": "Gura",
}))
.unwrap(),
QueryOperation::StockInfo {
stock: StockName::from_str("Gura").unwrap()
}
)
}
}

1
vtse-server/src/user.rs Normal file
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pub(crate) struct ApiKey(String);