clean code with clippy

Cargo.lock

@@ -2,6 +2,41 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aead"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
+dependencies = [
+ "crypto-common",
+ "generic-array",
+]
+
+[[package]]
+name = "aes"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "433cfd6710c9986c576a25ca913c39d66a6474107b406f34f91d4a8923395241"
+dependencies = [
+ "cfg-if",
+ "cipher",
+ "cpufeatures",
+]
+
+[[package]]
+name = "aes-gcm"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82e1366e0c69c9f927b1fa5ce2c7bf9eafc8f9268c0b9800729e8b267612447c"
+dependencies = [
+ "aead",
+ "aes",
+ "cipher",
+ "ctr",
+ "ghash",
+ "subtle",
+]
+
 [[package]]
 name = "ahash"
 version = "0.7.6"
@@ -221,6 +256,16 @@ dependencies = [
  "phf_codegen",
 ]
 
+[[package]]
+name = "cipher"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
+dependencies = [
+ "crypto-common",
+ "inout",
+]
+
 [[package]]
 name = "codespan-reporting"
 version = "0.11.1"
@@ -237,7 +282,13 @@ version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7efb37c3e1ccb1ff97164ad95ac1606e8ccd35b3fa0a7d99a304c7f4a428cc24"
 dependencies = [
+ "aes-gcm",
+ "base64",
+ "hkdf",
  "percent-encoding",
+ "rand",
+ "sha2",
+ "subtle",
  "time",
  "version_check",
 ]
@@ -308,9 +359,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
 dependencies = [
  "generic-array",
+ "rand_core",
  "typenum",
 ]
 
+[[package]]
+name = "ctr"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0369ee1ad671834580515889b80f2ea915f23b8be8d0daa4bbaf2ac5c7590835"
+dependencies = [
+ "cipher",
+]
+
 [[package]]
 name = "cxx"
 version = "1.0.94"
@@ -658,6 +719,16 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "ghash"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d930750de5717d2dd0b8c0d42c076c0e884c81a73e6cab859bbd2339c71e3e40"
+dependencies = [
+ "opaque-debug",
+ "polyval",
+]
+
 [[package]]
 name = "glob"
 version = "0.3.1"
@@ -755,6 +826,24 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "hkdf"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "791a029f6b9fc27657f6f188ec6e5e43f6911f6f878e0dc5501396e09809d437"
+dependencies = [
+ "hmac",
+]
+
+[[package]]
+name = "hmac"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
+dependencies = [
+ "digest",
+]
+
 [[package]]
 name = "http"
 version = "0.2.9"
@@ -916,6 +1005,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "inout"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0c10553d664a4d0bcff9f4215d0aac67a639cc68ef660840afe309b807bc9f5"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "instant"
 version = "0.1.12"
@@ -1211,6 +1309,12 @@ version = "1.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
 
+[[package]]
+name = "opaque-debug"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+
 [[package]]
 name = "overload"
 version = "0.1.1"
@@ -1441,6 +1545,18 @@ version = "0.3.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ac9a59f73473f1b8d852421e59e64809f025994837ef743615c6d0c5b305160"
 
+[[package]]
+name = "polyval"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ef234e08c11dfcb2e56f79fd70f6f2eb7f025c0ce2333e82f4f0518ecad30c6"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "opaque-debug",
+ "universal-hash",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -1686,11 +1802,12 @@ name = "rot"
 version = "0.1.0"
 dependencies = [
  "argon2",
- "base64",
  "env_logger",
  "log",
  "rocket",
  "rocket_dyn_templates",
+ "serde",
+ "serde_json",
  "sqlx",
 ]
 
@@ -2436,6 +2553,16 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39ec24b3121d976906ece63c9daad25b85969647682eee313cb5779fdd69e14e"
 
+[[package]]
+name = "universal-hash"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d3160b73c9a19f7e2939a2fdad446c57c1bbbbf4d919d3213ff1267a580d8b5"
+dependencies = [
+ "crypto-common",
+ "subtle",
+]
+
 [[package]]
 name = "untrusted"
 version = "0.7.1"

Cargo.toml

@@ -6,10 +6,11 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rocket = { version = "0.5.0-rc.3"}
+rocket = { version = "0.5.0-rc.3", features = ["secrets"]}
 rocket_dyn_templates = {version = "0.1.0-rc.3", features = [ "tera" ] }
 log = "0.4"
 env_logger = "0.10"
 sqlx = { version = "0.6", features = ["sqlite", "runtime-tokio-rustls", "macros"] }
 argon2 = "0.5"
-base64 = "0.21"
+serde = { version = "1.0", features = [ "derive" ]}
+serde_json = "1.0"

src/model/user.rs

@@ -1,17 +1,8 @@
-use std::ops::Deref;
+use argon2::{password_hash::SaltString, Argon2, PasswordHasher};
-
+use serde::Serialize;
-use argon2::{
-    password_hash::{rand_core::OsRng, SaltString},
-    Argon2, PasswordHash, PasswordHasher, PasswordVerifier,
-};
-use base64::{engine, prelude::BASE64_STANDARD_NO_PAD, Engine};
-use rocket::{
-    request::{self, FromRequest},
-    Request,
-};
 use sqlx::{FromRow, SqlitePool};
 
-#[derive(FromRow, Debug)]
+#[derive(FromRow, Debug, Serialize)]
 pub struct User {
     id: i64,
     name: String,

src/rest/auth.rs

@@ -1,14 +1,17 @@
 use rocket::{
     form::Form,
-    get, post,
+    get,
+    http::{Cookie, CookieJar},
+    post,
     request::FlashMessage,
-    response::{status, Flash, Redirect},
+    response::{Flash, Redirect},
-    routes, FromForm, Responder, Route, State,
+    routes, FromForm, Route, State,
 };
-use rocket_dyn_templates::{context, tera, Template};
+use rocket_dyn_templates::{tera, Template};
+use serde_json::json;
 use sqlx::SqlitePool;
 
-use crate::model::user::{self, User};
+use crate::model::user::User;
 
 #[get("/")]
 async fn index(flash: Option<FlashMessage<'_>>) -> Template {
@@ -28,7 +31,11 @@ struct LoginForm {
 }
 
 #[post("/", data = "<login>")]
-async fn login(login: Form<LoginForm>, db: &State<SqlitePool>) -> Flash<Redirect> {
+async fn login(
+    login: Form<LoginForm>,
+    db: &State<SqlitePool>,
+    cookies: &CookieJar<'_>,
+) -> Flash<Redirect> {
     let user = User::login(db, login.name.clone(), login.password.clone()).await;
 
     //TODO: be able to use for find_by_name. This would get rid of the following match clause.
@@ -39,6 +46,9 @@ async fn login(login: Form<LoginForm>, db: &State<SqlitePool>) -> Flash<Redirect
         }
     };
 
+    let user_json: String = format!("{}", json!(user));
+    cookies.add_private(Cookie::new("user", user_json));
+
     Flash::success(Redirect::to("/"), "Login erfolgreich")
 }