User accounts, DAO trait, registration.

Not very thorough, but it does work.

Cargo.lock

@@ -79,6 +79,18 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "arrayref"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
+
+[[package]]
+name = "arrayvec"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -126,12 +138,29 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
 
+[[package]]
+name = "base64"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
+[[package]]
+name = "blake2b_simd"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "constant_time_eq",
+]
+
 [[package]]
 name = "block-buffer"
 version = "0.7.3"
@@ -208,6 +237,12 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "constant_time_eq"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
+
 [[package]]
 name = "cookie"
 version = "0.11.3"
@@ -224,6 +259,17 @@ dependencies = [
  "time",
 ]
 
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02d96d1e189ef58269ebe5b97953da3274d83a93af647c2ddd6f9dab28cedb8d"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "lazy_static",
+]
+
 [[package]]
 name = "crypto-mac"
 version = "0.7.0"
@@ -1086,6 +1132,18 @@ dependencies = [
  "unicode-xid 0.1.0",
 ]
 
+[[package]]
+name = "rust-argon2"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b18820d944b33caa75a71378964ac46f58517c92b6ae5f762636247c09e78fb"
+dependencies = [
+ "base64 0.13.0",
+ "blake2b_simd",
+ "constant_time_eq",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.18"
@@ -1246,8 +1304,11 @@ name = "tenebrous-sheets"
 version = "0.1.0"
 dependencies = [
  "diesel",
+ "log 0.4.11",
+ "rand",
  "rocket",
  "rocket_contrib",
+ "rust-argon2",
  "serde",
  "serde_derive",
  "serde_json",

Cargo.toml

@@ -12,6 +12,9 @@ serde_derive = "1.0"
 serde_json = "1.0"
 diesel = "1.4"
 thiserror = "1.0"
+rust-argon2 = "0.8"
+log = "0.4"
+rand = "0.7"
 rocket = { version= "0.4.6", features = ["private-cookies"] }
 
 [dependencies.rocket_contrib]

migrations/2020-12-04-202734_users/down.sql

@@ -0,0 +1 @@
+DROP TABLE users;

migrations/2020-12-04-202734_users/up.sql

@@ -0,0 +1,5 @@
+CREATE TABLE users (
+       id INTEGER NOT NULL PRIMARY KEY,
+       username TEXT NOT NULL,
+       password TEXT NOT NULL
+);

src/db.rs

@@ -1,39 +1,74 @@
 use crate::models::characters::{CharacterEntry, NewCharacter};
+use crate::models::users::{NewUser, User};
 use diesel::prelude::*;
+use diesel::SqliteConnection;
 
 #[database("tenebrous_db")]
-pub(crate) struct TenebrousDbConn(diesel::SqliteConnection);
+pub(crate) struct TenebrousDbConn(SqliteConnection);
 
-pub(crate) fn load_character_list(
-    conn: TenebrousDbConn,
-    for_user_id: i32,
-) -> QueryResult<Vec<CharacterEntry>> {
-    use crate::schema::characters::dsl::*;
-    characters.filter(user_id.eq(for_user_id)).load(&*conn)
+pub(crate) trait Dao {
+    fn load_user_by_id(&self, id: i32) -> QueryResult<Option<User>>;
+    fn load_user(&self, for_username: &str) -> QueryResult<Option<User>>;
+
+    fn insert_user(&self, new_user: &NewUser) -> QueryResult<User>;
+
+    fn load_character_list(&self, for_user_id: i32) -> QueryResult<Vec<CharacterEntry>>;
+
+    fn load_character(&self, character_id: i32) -> QueryResult<Option<CharacterEntry>>;
+
+    fn insert_character(&self, new_character: &NewCharacter) -> QueryResult<()>;
 }
 
-pub(crate) fn load_character(
-    conn: TenebrousDbConn,
-    character_id: i32,
-) -> QueryResult<Option<CharacterEntry>> {
-    use crate::schema::characters::dsl::*;
+impl Dao for TenebrousDbConn {
+    fn load_user_by_id(&self, user_id: i32) -> QueryResult<Option<User>> {
+        use crate::schema::users::dsl::*;
 
-    characters
-        .filter(id.eq(character_id))
-        .limit(1)
-        .first(&*conn)
-        .optional()
-}
-
-pub(crate) fn insert_character(
-    conn: TenebrousDbConn,
-    new_character: &NewCharacter,
-) -> QueryResult<()> {
-    use crate::schema::characters;
-
-    diesel::insert_into(characters::table)
-        .values(new_character)
-        .execute(&*conn)?;
-
-    Ok(())
+        users.filter(id.eq(user_id)).first(&self.0).optional()
+    }
+
+    fn load_user(&self, for_username: &str) -> QueryResult<Option<User>> {
+        use crate::schema::users::dsl::*;
+
+        users
+            .filter(username.eq(for_username))
+            .first(&self.0)
+            .optional()
+    }
+
+    fn insert_user(&self, new_user: &NewUser) -> QueryResult<User> {
+        use crate::schema::users;
+
+        diesel::insert_into(users::table)
+            .values(new_user)
+            .execute(&self.0)?;
+
+        use crate::schema::users::dsl::*;
+        Ok(users
+            .filter(username.eq(new_user.username))
+            .first(&self.0)?)
+    }
+
+    fn load_character_list(&self, for_user_id: i32) -> QueryResult<Vec<CharacterEntry>> {
+        use crate::schema::characters::dsl::*;
+        characters.filter(user_id.eq(for_user_id)).load(&self.0)
+    }
+
+    fn load_character(&self, character_id: i32) -> QueryResult<Option<CharacterEntry>> {
+        use crate::schema::characters::dsl::*;
+
+        characters
+            .filter(id.eq(character_id))
+            .first(&self.0)
+            .optional()
+    }
+
+    fn insert_character(&self, new_character: &NewCharacter) -> QueryResult<()> {
+        use crate::schema::characters;
+
+        diesel::insert_into(characters::table)
+            .values(new_character)
+            .execute(&self.0)?;
+
+        Ok(())
+    }
 }

src/errors.rs

@@ -21,6 +21,10 @@ pub enum Error {
     QueryError(#[from] diesel::result::Error),
 }
 
+#[derive(Error, Debug)]
+#[error("internal eror")]
+pub struct SensitiveError(Error);
+
 impl Error {
     fn is_sensitive(&self) -> bool {
         use Error::*;
@@ -33,6 +37,7 @@ impl Error {
 
 impl<'r> Responder<'r> for Error {
     fn respond_to(self, req: &Request) -> response::Result<'r> {
+        log::error!("error: {0}", self.to_string());
         //Hide sensitive error information
         let message: String = if self.is_sensitive() {
             "internal error".into()
@@ -53,3 +58,22 @@ impl<'r> Responder<'r> for Error {
         }
     }
 }
+
+impl<'r> Responder<'r> for SensitiveError {
+    fn respond_to(self, req: &Request) -> response::Result<'r> {
+        log::error!("sensitive error: {0}", self.0.to_string());
+        let message: String = self.to_string();
+
+        let mut context = HashMap::new();
+        context.insert("message", message);
+        let resp = Template::render("error", context).respond_to(req)?;
+
+        use Error::*;
+        match self.0 {
+            NotFound => status::NotFound(resp).respond_to(req),
+            NotLoggedIn => status::Forbidden(Some(resp)).respond_to(req),
+            NoPermission => status::Forbidden(Some(resp)).respond_to(req),
+            _ => status::Custom(Status::InternalServerError, resp).respond_to(req),
+        }
+    }
+}

src/models.rs

@@ -1,44 +1,2 @@
-use rocket::http::RawStr;
-use rocket::outcome::IntoOutcome;
-use rocket::request::{self, FromParam, FromRequest, Request};
-use serde_derive::Serialize;
-
 pub mod characters;
-
-#[derive(Eq, PartialEq, Serialize, Debug)]
-pub struct User {
-    pub id: i32,
-    pub username: String,
-}
-
-impl<'a, 'r> FromRequest<'a, 'r> for User {
-    type Error = !;
-
-    fn from_request(request: &'a Request<'r>) -> request::Outcome<User, !> {
-        request
-            .cookies()
-            .get_private("user_id")
-            .and_then(|cookie| cookie.value().parse().ok())
-            .map(|id|
-                 //TODO load from db
-                 User {
-                     id: id,
-                     username: "somebody".to_string(),
-                 })
-            .or_forward(())
-    }
-}
-
-impl<'r> FromParam<'r> for User {
-    type Error = &'r str;
-
-    fn from_param(param: &'r RawStr) -> Result<Self, Self::Error> {
-        let username: String = param.url_decode().or(Err("Invalid character ID"))?;
-
-        //TODO load from DB
-        Ok(User {
-            id: 1,
-            username: username,
-        })
-    }
-}
+pub mod users;

src/models/users.rs

@@ -0,0 +1,56 @@
+use crate::db::{Dao, TenebrousDbConn};
+use crate::schema::users;
+use argon2::{self, Config, Error as ArgonError};
+use rand::Rng;
+use rocket::outcome::IntoOutcome;
+use rocket::request::{self, FromRequest, Request};
+use serde_derive::Serialize;
+
+pub(crate) fn hash_password(raw_password: &str) -> Result<String, ArgonError> {
+    let salt = rand::thread_rng().gen::<[u8; 16]>();
+    let config = Config::default();
+    argon2::hash_encoded(raw_password.as_bytes(), &salt, &config)
+}
+
+#[derive(Eq, PartialEq, Serialize, Debug, Queryable)]
+pub struct User {
+    pub id: i32,
+    pub username: String,
+    pub password: String,
+}
+
+impl User {
+    pub fn verify_password(&self, raw_password: &str) -> bool {
+        argon2::verify_encoded(&self.password, raw_password.as_bytes()).unwrap_or(false)
+    }
+}
+
+impl<'a, 'r> FromRequest<'a, 'r> for &'a User {
+    type Error = !;
+
+    fn from_request(request: &'a Request<'r>) -> request::Outcome<Self, !> {
+        let user: &Option<User> = request.local_cache(|| {
+            let attempt_load_user = |id| -> Option<User> {
+                TenebrousDbConn::from_request(request)
+                    .map(|conn| conn.load_user_by_id(id).ok().flatten())
+                    .succeeded()
+                    .flatten()
+            };
+
+            request
+                .cookies()
+                .get_private("user_id")
+                .and_then(|cookie| cookie.value().parse().ok())
+                .and_then(attempt_load_user)
+        });
+
+        user.as_ref().or_forward(())
+    }
+}
+
+#[derive(Insertable)]
+#[table_name = "users"]
+pub struct NewUser<'a> {
+    pub username: &'a str,
+    pub password: &'a str,
+}

src/routes/auth.rs

@@ -1,4 +1,6 @@
-use crate::models::User;
+use crate::db::{Dao, TenebrousDbConn};
+use crate::models::users::{self, NewUser, User};
+use log::error;
 use rocket::http::{Cookie, Cookies};
 use rocket::request::{FlashMessage, Form};
 use rocket::response::{Flash, Redirect};
@@ -6,7 +8,14 @@ use rocket_contrib::templates::Template;
 use std::collections::HashMap;
 
 pub(crate) fn routes() -> Vec<rocket::Route> {
-    routes![login, logout, logged_in_user, login_page]
+    routes![
+        login,
+        logout,
+        logged_in_user,
+        login_page,
+        register_page,
+        register
+    ]
 }
 
 #[derive(FromForm)]
@@ -15,27 +24,58 @@ struct Login {
     password: String,
 }
 
+#[derive(FromForm)]
+struct Registration {
+    username: String,
+    password: String,
+}
+
+fn add_login_cookie(cookies: &mut Cookies, user: &User) {
+    cookies.add_private(Cookie::new("user_id", user.id.to_string()));
+}
+
+fn remove_login_cookie(cookies: &mut Cookies) {
+    cookies.remove_private(Cookie::named("user_id"));
+}
+
+fn login_error_redirect<S: AsRef<str>>(message: S) -> Flash<Redirect> {
+    Flash::error(Redirect::to(uri!(login_page)), message.as_ref())
+}
+
+fn registration_error_redirect<S: AsRef<str>>(message: S) -> Flash<Redirect> {
+    Flash::error(Redirect::to(uri!(register_page)), message.as_ref())
+}
+
 #[post("/login", data = "<login>")]
-fn login(mut cookies: Cookies, login: Form<Login>) -> Result<Redirect, Flash<Redirect>> {
-    if login.username == "test" && login.password == "test" {
-        cookies.add_private(Cookie::new("user_id", 1.to_string()));
+fn login(
+    mut cookies: Cookies,
+    login: Form<Login>,
+    conn: TenebrousDbConn,
+) -> Result<Redirect, Flash<Redirect>> {
+    let user = conn
+        .load_user(&login.username)
+        .map_err(|e| {
+            error!("login - error loading user user: {}", e);
+            login_error_redirect("Internal error.")
+        })?
+        .ok_or_else(|| login_error_redirect("Invalid username or password."))?;
+
+    if user.verify_password(&login.password) {
+        add_login_cookie(&mut cookies, &user);
         Ok(Redirect::to(uri!(super::root::index)))
     } else {
-        Err(Flash::error(
-            Redirect::to(uri!(login_page)),
-            "Invalid username orpassword.",
-        ))
+        Err(login_error_redirect("Invalid username or password."))
     }
 }
 
 #[post("/logout")]
 fn logout(mut cookies: Cookies) -> Flash<Redirect> {
-    cookies.remove_private(Cookie::named("user_id"));
+    remove_login_cookie(&mut cookies);
     Flash::success(Redirect::to(uri!(login_page)), "Successfully logged out.")
 }
 
 #[get("/login")]
-fn logged_in_user(_user: User) -> Redirect {
+fn logged_in_user(_user: &User) -> Redirect {
     Redirect::to(uri!(super::root::index))
 }
 
@@ -48,3 +88,50 @@ fn login_page(flash: Option<FlashMessage>) -> Template {
 
     Template::render("login", &context)
 }
+
+#[get("/register")]
+fn register_page(flash: Option<FlashMessage>) -> Template {
+    let mut context = HashMap::new();
+    if let Some(ref msg) = flash {
+        context.insert("flash", msg.msg());
+    }
+
+    Template::render("registration", &context)
+}
+
+#[post("/register", data = "<registration>")]
+fn register(
+    mut cookies: Cookies,
+    registration: Form<Registration>,
+    conn: TenebrousDbConn,
+) -> Result<Redirect, Flash<Redirect>> {
+    let existing_user = conn.load_user(&registration.username).map_err(|e| {
+        error!("registration - error loading existing user: {}", e);
+        registration_error_redirect("There was an error attempting to register.")
+    })?;
+
+    if existing_user.is_some() {
+        return Err(registration_error_redirect(format!(
+            "The username {} is already taken.",
+            registration.username
+        )));
+    }
+
+    let hashed_pw = users::hash_password(&registration.password).map_err(|e| {
+        error!("registration - password hashing error: {}", e);
+        registration_error_redirect("There was an error attempting to register.")
+    })?;
+
+    let user = NewUser {
+        username: &registration.username,
+        password: &hashed_pw,
+    };
+
+    let user = conn.insert_user(&user).map_err(|e| {
+        error!("registration - could not insert user: {}", e);
+        registration_error_redirect("There was an error completing registration.")
+    })?;
+
+    add_login_cookie(&mut cookies, &user);
+    Ok(Redirect::to(uri!(super::root::index)))
+}

src/routes/characters.rs

@@ -1,8 +1,8 @@
-use crate::db::{self, TenebrousDbConn};
+use crate::db::{Dao, TenebrousDbConn};
 use crate::errors::Error;
 use crate::models::{
     characters::{CharacterEntry, NewCharacter},
-    User,
+    users::User,
 };
 use rocket::response::Redirect;
 use rocket_contrib::templates::Template;
@@ -21,20 +21,20 @@ pub(crate) fn routes() -> Vec<rocket::Route> {
 //TODO make private -- currently is referenced in homepage route.
 //or move to common place.
 #[derive(Serialize)]
-pub struct TemplateContext {
+pub struct TemplateContext<'a> {
     pub characters: Vec<CharacterEntry>,
-    pub user: User,
+    pub user: &'a User,
 }
 
 //TODO should return result based on whether or not character is publicly viewable.
-#[get("/<user>/<character_id>")]
+#[get("/<username>/<character_id>")]
 fn view_character(
     character_id: i32,
-    user: Option<User>,
+    username: String,
     conn: TenebrousDbConn,
 ) -> Result<Template, Error> {
-    let user = user.ok_or(Error::NotFound)?;
-    let character = db::load_character(conn, character_id)?.ok_or(Error::NotFound)?;
+    let user = conn.load_user(&username)?.ok_or(Error::NotFound)?;
+    let character = conn.load_character(character_id)?.ok_or(Error::NotFound)?;
 
     let mut context = HashMap::new();
     context.insert("name", character.name);
@@ -43,7 +43,7 @@ fn view_character(
 }
 
 #[get("/new")]
-fn new_character(logged_in_user: User, conn: TenebrousDbConn) -> Result<Template, Error> {
+fn new_character(logged_in_user: &User, conn: TenebrousDbConn) -> Result<Template, Error> {
     let context = HashMap::<String, String>::new();
     Ok(Template::render("new_character", context))
 }
@@ -56,15 +56,15 @@ fn new_character_not_logged_in() -> Redirect {
 #[get("/<owner>/<character_id>/edit")]
 fn edit_character(
     character_id: i32,
-    owner: Option<User>,
-    logged_in_user: Option<User>,
+    owner: String,
+    logged_in_user: Option<&User>,
     conn: TenebrousDbConn,
 ) -> Result<Template, Error> {
-    let owner = owner.ok_or(Error::NotFound)?;
+    let owner = conn.load_user(&owner)?.ok_or(Error::NotFound)?;
     let logged_in_user = logged_in_user.ok_or(Error::NotLoggedIn)?;
-    let character = db::load_character(conn, character_id)?.ok_or(Error::NotFound)?;
+    let character = conn.load_character(character_id)?.ok_or(Error::NotFound)?;
 
-    if logged_in_user != owner {
+    if logged_in_user != &owner {
         return Err(Error::NoPermission);
     }
 

src/routes/root.rs

@@ -1,7 +1,6 @@
-use crate::db;
-use crate::db::TenebrousDbConn;
+use crate::db::{Dao, TenebrousDbConn};
 use crate::errors::Error;
-use crate::models::{characters::CharacterEntry, User};
+use crate::models::{characters::CharacterEntry, users::User};
 use rocket::response::Redirect;
 use rocket_contrib::templates::Template;
 
@@ -10,9 +9,9 @@ pub fn routes() -> Vec<rocket::Route> {
 }
 
 #[get("/")]
-fn user_index(user: User, conn: TenebrousDbConn) -> Result<Template, Error> {
+fn user_index(user: &User, conn: TenebrousDbConn) -> Result<Template, Error> {
     use crate::routes::characters::TemplateContext;
-    let characters = db::load_character_list(conn, user.id)?;
+    let characters = conn.load_character_list(user.id)?;
 
     let context = TemplateContext {
         characters: characters,

src/schema.rs

@@ -7,3 +7,16 @@ table! {
         character_data -> Nullable<Binary>,
     }
 }
+
+table! {
+    users (id) {
+        id -> Integer,
+        username -> Text,
+        password -> Text,
+    }
+}
+
+allow_tables_to_appear_in_same_query!(
+    characters,
+    users,
+);

templates/index.html.tera

@@ -13,5 +13,11 @@
         </li>
         {% endfor %}
     </ul>
+
+    <p>
+        <form action="/logout" method="post">
+            <input type="submit" value="Logout" />
+        </form>
+    </p>
 </div>
 {% endblock content %}

templates/login.html.tera

@@ -15,7 +15,7 @@
         <input type="text" name="username" id="username" value="" />
         <label for="password">password</label>
         <input type="password" name="password" id="password" value="" />
-        <p><input type="submit" value="login"></p>
+        <p><input type="submit" value="Login"></p>
     </form>
 </div>
 {% endblock content %}

templates/registration.html.tera

@@ -0,0 +1,25 @@
+{% extends "base" %}
+
+{% block content %}
+<div>
+    <h1>Registration</h1>
+
+    {% if flash %}
+    <p>Error: {{ flash }}</p>
+    {% endif %}
+
+    <p>Please register with a username and password.</p>
+    <form action="/register" method="post" accept-charset="utf-8">
+        <div>
+            <label for="username">Username:</label>
+            <input id="username" name="username" type="text" value="" />
+
+            <label for="password">Password:</label>
+            <input id="password" name="password" type="password" value="" />
+        </div>
+        <div>
+            <input type="submit" value="Register" />
+        </div>
+    </form>
+</div>
+{% endblock content %}