freechat/server-api/src/auth.rs
2020-11-21 19:05:44 -08:00

137 lines
4.0 KiB
Rust

use bcrypt::{self, BcryptResult};
use mysql_async::{Pool};
use mysql_async::error::Error as SqlError;
use crate::routes;
use db::{member::Member, common::FromDB};
use db::Response;
// used when we create a new users for the first time
#[derive(Debug)]
pub enum AuthReason {
Good, //passed regular check
OpenAuth, // route does not require auth
NoKey, // key missing
BadKey, // key is bad
}
fn valid_secret(given_pass: &str, hash: &str) -> bool {
let result = bcrypt::verify(given_pass, hash);
return match result {
Ok(result) => result,
Err(e) => {
eprintln!("{}", e);
return false;
}
}
}
fn valid_perms(member: Member, path: &str) -> bool {
use crate::perms;
// if there are perms on the current path make sure the user has them
if let Some(p) = perms::get_perm_mask(path) {
return (p & member.permissions) == p;
}
// if no perms then we don't care
return true;
}
pub fn generate_secret() -> String {
/*
* Generates a url-safe-plaintext secret for our db
* */
use getrandom::getrandom;
use base64::{encode_config, URL_SAFE};
let mut buf: Vec<u8> = vec![0;64];
getrandom(&mut buf).unwrap();
encode_config(buf,URL_SAFE)
}
pub fn encrypt_secret(raw: &str) -> BcryptResult<String> {
const BCRYPT_COST: u32 = 14;
return bcrypt::hash(raw, BCRYPT_COST);
}
pub async fn wall_entry(path: &str, pool: &Pool, params: &serde_json::Value) -> Result<AuthReason, SqlError> {
use std::borrow::Cow;
// Dont need to auth if it's not required
if routes::is_open(path) {
Ok(AuthReason::OpenAuth)
}
else {
// make sure we have some legit parameter to use
match (params.get("id"), params.get("secret")) {
/*
* If we apparantly have user data then check for validity in credentials
*/
(Some(id_v), Some(secret_v)) => {
/* unwrapping because i couldn't care less about poorly formatted request data */
let id = id_v.as_u64().unwrap_or(0); // basically nobody is allowed to have 0 as its supposed to be reserved
let secret = secret_v.as_str().unwrap_or("");
return match Member::get(pool, id).await {
Response::Row(user) => {
if valid_secret(secret, &user.secret) && valid_perms(user, path){
Ok(AuthReason::Good)
}
else {
Ok(AuthReason::BadKey)
}
},
Response::Empty => Ok(AuthReason::BadKey),
Response::Other(err) => Err(SqlError::Other(Cow::from(err))),
_ => Err(SqlError::Other(Cow::from("Undefined result")))
}
},
_ => {
Ok(AuthReason::NoKey)
}
}
}
}
#[cfg(test)]
mod auth_tests {
use crate::testing::get_pool;
use serde_json::Value;
use mysql_async::prelude::Queryable;
#[tokio::test]
async fn missing_key() {
let pool = get_pool();
let conn = pool.get_conn().await.unwrap();
let conn = conn.drop_exec(
r#"INSERT INTO members (id, secret, name, joindate, status,permissions)
VALUES(1, "abc", "bsname", 1,0,0)
"#,
()).await.unwrap();
let params: Value = serde_json::from_str(r#"
{
"id": 1
}
"#).unwrap();
let result = super::wall_entry("/channels/list", &pool, &params).await;
let _ = conn.drop_exec(r#"DELETE FROM members WHERE secret = "abc""#,()).await;
assert_eq!(true, result.is_ok());
}
#[test]
fn validity_check() {
use bcrypt::{hash, DEFAULT_COST};
let plain = super::generate_secret();
match hash(&plain, DEFAULT_COST) {
Ok(hash) => assert_eq!(super::valid_secret(&plain, &hash), true),
Err(err) => panic!("{}", err)
}
}
}