Auth login

1 files changed, 63 insertions, 0 deletions

diff --git a/server/src/models/auth.rs b/server/src/models/auth.rs
new file mode 100644
index 0000000..03b198b
--- /dev/null
+++ b/server/src/models/auth.rs
@@ -0,0 +1,63 @@
+use crate::errors::AppError;
+use chrono::{Duration, Local};
+use jsonwebtoken::{encode, DecodingKey, EncodingKey, Header, Validation};
+use once_cell::sync::Lazy;
+use serde::{Deserialize, Serialize};
+
+struct Keys {
+    encoding: EncodingKey,
+    decoding: DecodingKey,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct Claims {
+    user_id: i32,
+    exp: usize,
+}
+
+#[derive(Serialize)]
+pub struct AuthBody {
+    access_token: String,
+    token_type: String,
+}
+
+static KEYS: Lazy<Keys> = Lazy::new(|| {
+    let secret = std::env::var("JWT_SECRET").expect("JWT_SECRET must be set");
+    Keys::new(secret.as_bytes())
+});
+
+impl Keys {
+    fn new(secret: &[u8]) -> Self {
+        Self {
+            encoding: EncodingKey::from_secret(secret),
+            decoding: DecodingKey::from_secret(secret),
+        }
+    }
+}
+
+impl Claims {
+    pub fn new(user_id: i32) -> Self {
+        let expiration = Local::now() + Duration::days(2);
+
+        Self {
+            user_id,
+            exp: expiration.timestamp() as usize,
+        }
+    }
+
+    pub fn get_token(&self) -> Result<String, AppError> {
+        let token = encode(&Header::default(), &self, &KEYS.encoding)
+            .map_err(|_| AppError::TokenCreation)?;
+
+        Ok(token)
+    }
+}
+
+impl AuthBody {
+    pub fn new(access_token: String) -> Self {
+        Self {
+            access_token,
+            token_type: "Bearer".to_string(),
+        }
+    }
+}