chore: remove secret key file

.env.example

@@ -5,3 +5,5 @@
 DATABASE_URL=postgres://postgres:postgres@0.0.0.0:5432/realworld-rust-actix-web
 
 FRONTEND_ORIGIN=http://localhost:3000
+
+SECRET_KEY=0123456789012345

.gitignore

@@ -1,4 +1,3 @@
 /target
 
-.env
-secret.key
+.env

scripts/copy-env.sh

@@ -1,7 +1,4 @@
 #!/bin/sh
 
-# Create secrey.key
-cp secret.key.example secret.key
-
 #  Create .env
 cp .env.example .env

src/constants.rs

@@ -5,4 +5,5 @@ pub const BIND: &str = "0.0.0.0:8080";
 pub mod env_key {
     pub const DATABASE_URL: &str = "DATABASE_URL";
     pub const FRONTEND_ORIGIN: &str = "FRONTEND_ORIGIN";
+    pub const SECRET_KEY: &str = "SECRET_KEY";
 }

src/utils/token.rs

@@ -1,21 +1,34 @@
+use crate::constants::env_key;
 use jsonwebtoken::{errors::Error, DecodingKey, EncodingKey, Header, TokenData, Validation};
 use serde::{Deserialize, Serialize};
+use std::env;
 use uuid::Uuid;
 
-static KEY: [u8; 16] = *include_bytes!("../../secret.key");
 static ONE_DAY: i64 = 60 * 60 * 24; // in seconds
 
+fn get_secret_key() -> String {
+    env::var(env_key::SECRET_KEY).expect("SECRET_KEY must be set")
+}
+
 pub fn decode(token: &str) -> jsonwebtoken::errors::Result<TokenData<Claims>> {
+    let binding = get_secret_key();
+    let secret_key = binding.as_bytes();
     jsonwebtoken::decode::<Claims>(
         token,
-        &DecodingKey::from_secret(&KEY),
+        &DecodingKey::from_secret(secret_key),
         &Validation::default(),
     )
 }
 
 pub fn generate(user_id: Uuid, now: i64) -> Result<String, Error> {
     let claims = Claims::new(user_id, now);
-    jsonwebtoken::encode(&Header::default(), &claims, &EncodingKey::from_secret(&KEY))
+    let binding = get_secret_key();
+    let secret_key = binding.as_bytes();
+    jsonwebtoken::encode(
+        &Header::default(),
+        &claims,
+        &EncodingKey::from_secret(secret_key),
+    )
 }
 
 #[derive(Debug, Serialize, Deserialize)]