140 lines
3.6 KiB
Rust

use argon2::password_hash::Salt;
use diesel::Connection;
use serde::{Serialize, Deserialize};
use uuid::Uuid;
use diesel::{ExpressionMethods, QueryDsl, RunQueryDsl, Insertable, Queryable};
use diesel_derive_enum::DbEnum;
use argon2::password_hash::SaltString;
use argon2::PasswordHash;
use argon2::PasswordVerifier;
use argon2::Argon2;
use argon2::password_hash::PasswordHasher;
use argon2::password_hash::rand_core::OsRng;
use argon2::password_hash::rand_core::RngCore;
use crate::DbConnection;
use super::schema::{pwd, users};
pub use super::error::DatabaseError;
#[derive(Serialize, Deserialize, Debug, Insertable, Queryable)]
#[diesel(table_name = pwd)]
struct Pwd {
user_id: Uuid,
password: String,
}
#[derive(Serialize, Deserialize, Debug, Insertable, Queryable)]
#[diesel(table_name = users)]
pub struct User {
pub id: Uuid,
pub username: String,
pub email: String,
pub role: Role,
}
#[derive(DbEnum, Debug, Serialize, Deserialize, Clone, Copy, PartialEq)]
#[ExistingTypePath = "crate::schema::sql_types::Role"]
pub enum Role {
Admin,
User
}
pub struct LoginUser {
pub username: String,
pub password: String
}
#[derive(Serialize, Deserialize)]
pub struct LoginResult {
pub result: bool,
pub user: Option<User>,
}
#[derive(Serialize, Deserialize)]
pub struct RegisterResult {
pub result: bool,
}
#[derive(Serialize, Deserialize)]
pub struct Register {
pub username: String,
pub email: String,
pub password: String
}
pub fn login(conn: &mut DbConnection, user: LoginUser) -> Result<Option<User>, DatabaseError> {
let id: Uuid = users::table
.filter(users::username.eq(&user.username))
.or_filter(users::email.eq(&user.username))
.select(users::id)
.first(conn)?;
let pwd: String = pwd::table
.filter(pwd::user_id.eq(id))
.select(pwd::password)
.first(conn)?;
let parsed_hash = PasswordHash::new(&pwd)?;
if Argon2::default()
.verify_password(user.password.as_bytes(), &parsed_hash)
.is_ok()
{
Ok(Some(users::table.find(id).first(conn)?))
} else {
Ok(None)
}
}
pub fn get_user(conn: &mut DbConnection, id: Uuid) -> Result<User, DatabaseError> {
Ok(users::table.find(id).first(conn)?)
}
pub fn register(conn: &mut DbConnection, register: Register) -> Result<(), DatabaseError> {
let mut bytes = [0u8; Salt::RECOMMENDED_LENGTH];
OsRng.try_fill_bytes(&mut bytes).unwrap();
let salt = SaltString::encode_b64(&bytes).unwrap();
let argon2 = Argon2::default();
let password_hash = argon2
.hash_password(register.password.as_bytes(), &salt)?
.to_string();
conn.transaction(|c| {
let id = Uuid::new_v4();
diesel::insert_into(users::table)
.values(User {
id,
username: register.username,
email: register.email,
role: Role::User,
})
.execute(c)?;
diesel::insert_into(pwd::table)
.values(Pwd {
user_id: id,
password: password_hash,
})
.execute(c)?;
Ok(())
})
}
pub fn count_users_with_username(conn: &mut DbConnection, username: &String) -> Result<i64, DatabaseError> {
Ok(users::table
.count()
.filter(users::username.eq(username))
.get_result::<i64>(conn)?)
}
pub fn count_users_with_email(conn: &mut DbConnection, email: &String) -> Result<i64, DatabaseError> {
Ok(users::table
.count()
.filter(users::email.eq(email))
.get_result::<i64>(conn)?)
}