Sign out

backend/src/main.rs

@@ -1,13 +1,14 @@
-use std::{collections::HashMap, net::ToSocketAddrs};
+use std::collections::HashMap;
 
 use actix_files as fs;
-use actix_web::{http::header, get, post, web, Responder, middleware, App, HttpServer, HttpRequest, HttpResponse};
+use actix_web::{http::header, get, post, web, Responder, middleware, App, HttpServer, HttpRequest, HttpResponse, cookie::Cookie};
 use askama_actix::{Template, TemplateToResponse};
 use chrono::{prelude::*, Duration};
 use clap::Parser;
 use serde::Deserialize;
 
 use config::Config;
+use user::User;
 
 mod consts;
 mod db;
@@ -17,34 +18,97 @@ mod user;
 mod email;
 mod config;
 
+const COOKIE_AUTH_TOKEN_NAME: &str = "auth_token";
+
+///// UTILS /////
+
+fn get_ip_and_user_agent(req: &HttpRequest) -> (String, String) {
+    let user_agent = req.headers().get(header::USER_AGENT).map(|v| v.to_str().unwrap_or_default()).unwrap_or_default().to_string();
+    let ip = req.peer_addr().map(|addr| addr.ip().to_string()).unwrap_or_default();
+    (ip, user_agent)
+}
+
+fn get_current_user(req: &HttpRequest, connection: &web::Data<db::Connection>) -> Option<User> {
+    let (client_ip, client_user_agent) = get_ip_and_user_agent(req);
+
+    match req.cookie(COOKIE_AUTH_TOKEN_NAME) {
+        Some(token_cookie) =>
+            match connection.authentication(token_cookie.value(), &client_ip, &client_user_agent) {
+                Ok(db::AuthenticationResult::NotValidToken) =>
+                    // TODO: remove cookie?
+                    None,
+                Ok(db::AuthenticationResult::Ok(user_id)) =>
+                    match connection.load_user(user_id) {
+                        Ok(user) =>
+                            Some(user),
+                        Err(error) => {
+                            eprintln!("Error during authentication: {:?}", error);
+                            None
+                        }
+                    },
+                Err(error) => {
+                    eprintln!("Error during authentication: {:?}", error);
+                    None
+                },
+            },
+        None => None
+    }
+}
+
+///// HOME /////
+
 #[derive(Template)]
 #[template(path = "home.html")]
 struct HomeTemplate {
+    user: Option<user::User>,
     recipes: Vec<(i32, String)>,
 }
 
-#[derive(Template)]
-#[template(path = "sign_in_form.html")]
-struct SignInFormTemplate {
-}
-
-#[derive(Template)]
-#[template(path = "view_recipe.html")]
-struct ViewRecipeTemplate {
-    recipes: Vec<(i32, String)>,
-    current_recipe: model::Recipe,
-}
-
-#[derive(Template)]
-#[template(path = "message.html")]
-struct MessageTemplate {
-    recipes: Vec<(i32, String)>,
-    message: String,
-}
-
 #[get("/")]
 async fn home_page(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
-    HomeTemplate { recipes: connection.get_all_recipe_titles().unwrap_or_default() }
+    HomeTemplate { user: get_current_user(&req, &connection), recipes: connection.get_all_recipe_titles().unwrap_or_default() }
+}
+
+///// VIEW RECIPE /////
+
+#[derive(Template)]
+#[template(path = "view_recipe.html")]
+struct ViewRecipeTemplate {
+    user: Option<user::User>,
+    recipes: Vec<(i32, String)>,
+    current_recipe: model::Recipe,
+}
+
+#[get("/recipe/view/{id}")]
+async fn view_recipe(req: HttpRequest, path: web::Path<(i32,)>, connection: web::Data<db::Connection>) -> impl Responder {
+    let (id,)= path.into_inner();
+    let recipes = connection.get_all_recipe_titles().unwrap_or_default();
+    let user = get_current_user(&req, &connection);
+
+    match connection.get_recipe(id) {
+        Ok(recipe) =>
+            ViewRecipeTemplate {
+                user,
+                recipes,
+                current_recipe: recipe,
+            }.to_response(),
+        Err(_error) =>
+            MessageTemplate {
+                user,
+                recipes,
+                message: format!("Unable to get recipe #{}", id),
+            }.to_response(),
+    }
+}
+
+///// MESSAGE /////
+
+#[derive(Template)]
+#[template(path = "message.html")]
+struct MessageTemplate {
+    user: Option<user::User>,
+    recipes: Vec<(i32, String)>,
+    message: String,
 }
 
 //// SIGN UP /////
@@ -52,16 +116,23 @@ async fn home_page(req: HttpRequest, connection: web::Data<db::Connection>) -> i
 #[derive(Template)]
 #[template(path = "sign_up_form.html")]
 struct SignUpFormTemplate {
+    user: Option<user::User>,
     email: String,
     message: String,
     message_email: String,
     message_password: String,
 }
 
-impl SignUpFormTemplate {
-    fn new() -> Self {
-        SignUpFormTemplate { email: String::new(), message: String::new(), message_email: String::new(), message_password: String::new() }
-    }
+#[get("/signup")]
+async fn sign_up_get(req: HttpRequest, query: web::Query<HashMap<String, String>>, connection: web::Data<db::Connection>) -> impl Responder {
+    SignUpFormTemplate { user: get_current_user(&req, &connection),  email: String::new(), message: String::new(), message_email: String::new(), message_password: String::new() }
+}
+
+#[derive(Deserialize)]
+struct SignUpFormData {
+    email: String,
+    password_1: String,
+    password_2: String,
 }
 
 enum SignUpError {
@@ -73,24 +144,13 @@ enum SignUpError {
     UnableSendEmail,
 }
 
-#[get("/signup")]
-async fn sign_up_get(req: HttpRequest, query: web::Query<HashMap<String, String>>, connection: web::Data<db::Connection>) -> impl Responder {
-    SignUpFormTemplate::new()
-}
-
-#[derive(Deserialize)]
-struct SignUpFormData {
-    email: String,
-    password_1: String,
-    password_2: String,
-}
-
 #[post("/signup")]
 async fn sign_up_post(req: HttpRequest, form: web::Form<SignUpFormData>, connection: web::Data<db::Connection>, config: web::Data<Config>) -> impl Responder {
-    println!("Sign Up, email: {}, passwords: {}/{}", form.email, form.password_1, form.password_2);
+    println!("Sign up, email: {}, passwords: {}/{}", form.email, form.password_1, form.password_2);
 
-    fn error_response(error: SignUpError, form: &web::Form<SignUpFormData>) -> HttpResponse {
+    fn error_response(error: SignUpError, form: &web::Form<SignUpFormData>, user: Option<User>) -> HttpResponse {
         SignUpFormTemplate {
+            user,
             email: form.email.clone(),
             message_email:
                 match error {
@@ -113,22 +173,24 @@ async fn sign_up_post(req: HttpRequest, form: web::Form<SignUpFormData>, connect
         }.to_response()
     }
 
+    let user = get_current_user(&req, &connection);
+
     // Validation of email and password.
     if let common::utils::EmailValidation::NotValid = common::utils::validate_email(&form.email) {
-        return error_response(SignUpError::InvalidEmail, &form);
+        return error_response(SignUpError::InvalidEmail, &form, user);
     }
 
     if form.password_1 != form.password_2 {
-        return error_response(SignUpError::PasswordsNotEqual, &form);
+        return error_response(SignUpError::PasswordsNotEqual, &form, user);
     }
 
     if let common::utils::PasswordValidation::TooShort = common::utils::validate_password(&form.password_1) {
-        return error_response(SignUpError::InvalidPassword, &form);
+        return error_response(SignUpError::InvalidPassword, &form, user);
     }
 
     match connection.sign_up(&form.email, &form.password_1) {
         Ok(db::SignUpResult::UserAlreadyExists) => {
-            error_response(SignUpError::UserAlreadyExists, &form)
+            error_response(SignUpError::UserAlreadyExists, &form, user)
         },
         Ok(db::SignUpResult::UserCreatedWaitingForValidation(token)) => {
             let url = {
@@ -151,21 +213,22 @@ async fn sign_up_post(req: HttpRequest, form: web::Form<SignUpFormData>, connect
                         .finish(),
                 Err(error) => {
                     eprintln!("Email validation error: {:?}", error);
-                    error_response(SignUpError::UnableSendEmail, &form)
+                    error_response(SignUpError::UnableSendEmail, &form, user)
                 },
             }
         },
         Err(error) => {
             eprintln!("Signup database error: {:?}", error);
-            error_response(SignUpError::DatabaseError, &form)
+            error_response(SignUpError::DatabaseError, &form, user)
         },
     }
 }
 
 #[get("/signup_check_email")]
-async fn sign_up_check_email(connection: web::Data<db::Connection>) -> impl Responder {
+async fn sign_up_check_email(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
     let recipes = connection.get_all_recipe_titles().unwrap_or_default();
     MessageTemplate {
+        user: get_current_user(&req, &connection),
         recipes,
         message: "An email has been sent, follow the link to validate your account.".to_string(),
     }
@@ -173,89 +236,166 @@ async fn sign_up_check_email(connection: web::Data<db::Connection>) -> impl Resp
 
 #[get("/validation")]
 async fn sign_up_validation(req: HttpRequest, query: web::Query<HashMap<String, String>>, connection: web::Data<db::Connection>) -> impl Responder {
-
-    println!("req:\n{:#?}", req);
-
-    let client_user_agent = req.headers().get(header::USER_AGENT).map(|v| v.to_str().unwrap_or_default()).unwrap_or_default();
-    let client_ip = req.peer_addr().map(|addr| addr.ip().to_string()).unwrap_or_default();
+    let (client_ip, client_user_agent) = get_ip_and_user_agent(&req);
+    let user = get_current_user(&req, &connection);
 
     let recipes = connection.get_all_recipe_titles().unwrap_or_default();
     match query.get("token") {
         Some(token) => {
-            match connection.validation(token, Duration::seconds(consts::VALIDATION_TOKEN_DURATION), &client_ip, client_user_agent).unwrap() {
-                db::ValidationResult::Ok(token, user_id) =>
-                    // TODO: set token to cookie.
-                    MessageTemplate {
-                        recipes,
-                        message: "Email validation successful, your account has been created".to_string(),
-                    },
+            match connection.validation(token, Duration::seconds(consts::VALIDATION_TOKEN_DURATION), &client_ip, &client_user_agent).unwrap() {
+                db::ValidationResult::Ok(token, user_id) => {
+                    let cookie = Cookie::new(COOKIE_AUTH_TOKEN_NAME, token);
+                    let user =
+                        match connection.load_user(user_id) {
+                            Ok(user) =>
+                                Some(user),
+                            Err(error) => {
+                                eprintln!("Error retrieving user by id: {}", error);
+                                None
+                            }
+                        };
+
+                    let mut response =
+                        MessageTemplate {
+                            user,
+                            recipes,
+                            message: "Email validation successful, your account has been created".to_string(),
+                        }.to_response();
+
+                    if let Err(error) = response.add_cookie(&cookie) {
+                        eprintln!("Unable to set cookie after validation: {:?}", error);
+                    };
+
+                    response
+                },
                 db::ValidationResult::ValidationExpired =>
                     MessageTemplate {
+                        user,
                         recipes,
                         message: "The validation has expired. Try to sign up again.".to_string(),
-                    },
+                    }.to_response(),
                 db::ValidationResult::UnknownUser =>
-                MessageTemplate {
-                    recipes,
-                    message: "Validation error.".to_string(),
-                },
+                    MessageTemplate {
+                        user,
+                        recipes,
+                        message: "Validation error.".to_string(),
+                    }.to_response(),
             }
         },
         None => {
             MessageTemplate {
+                user,
                 recipes,
                 message: format!("No token provided"),
-            }
+            }.to_response()
         },
     }
 }
 
 ///// SIGN IN /////
 
-#[get("/signinform")]
-async fn sign_in_form(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
+#[derive(Template)]
+#[template(path = "sign_in_form.html")]
+struct SignInFormTemplate {
+    user: Option<user::User>,
+    email: String,
+    message: String,
+}
+
+#[get("/signin")]
+async fn sign_in_get(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
     SignInFormTemplate {
+        user: get_current_user(&req, &connection),
+        email: String::new(),
+        message: String::new(),
     }
 }
 
+#[derive(Deserialize)]
+struct SignInFormData {
+    email: String,
+    password: String,
+}
+
+enum SignInError {
+    AccountNotValidated,
+    AuthenticationFailed,
+}
+
 #[post("/signin")]
-async fn sign_in(req: HttpRequest) -> impl Responder {
-    "todo"
+async fn sign_in_post(req: HttpRequest, form: web::Form<SignInFormData>, connection: web::Data<db::Connection>) -> impl Responder {
+    println!("Sign in, email: {}, password: {}", form.email, form.password);
+
+    fn error_response(error: SignInError, form: &web::Form<SignInFormData>, user: Option<User>) -> HttpResponse {
+        SignInFormTemplate {
+            user,
+            email: form.email.clone(),
+            message:
+                match error {
+                    SignInError::AccountNotValidated => "This account must be validated first",
+                    SignInError::AuthenticationFailed => "Wrong email or password",
+                }.to_string(),
+        }.to_response()
+    }
+
+    let user = get_current_user(&req, &connection);
+    let (client_ip, client_user_agent) = get_ip_and_user_agent(&req);
+
+    match connection.sign_in(&form.email, &form.password, &client_ip, &client_user_agent) {
+        Ok(db::SignInResult::AccountNotValidated) =>
+            error_response(SignInError::AccountNotValidated, &form, user),
+        Ok(db::SignInResult::UserNotFound) | Ok(db::SignInResult::WrongPassword) => {
+            error_response(SignInError::AuthenticationFailed, &form, user)
+        },
+        Ok(db::SignInResult::Ok(token, user_id)) => {
+            let cookie = Cookie::new(COOKIE_AUTH_TOKEN_NAME, token);
+            let mut response =
+                HttpResponse::Found()
+                    .insert_header((header::LOCATION, "/"))
+                    .finish();
+            if let Err(error) = response.add_cookie(&cookie) {
+                eprintln!("Unable to set cookie after sign in: {:?}", error);
+            };
+            response
+        },
+        Err(error) => {
+            eprintln!("Signin error: {:?}", error);
+            error_response(SignInError::AuthenticationFailed, &form, user)
+        },
+    }
 }
 
-#[get("/recipe/view/{id}")]
-async fn view_recipe(req: HttpRequest, path: web::Path<(i32,)>, connection: web::Data<db::Connection>) -> impl Responder {
-    let (id,)= path.into_inner();
-    let recipes = connection.get_all_recipe_titles().unwrap_or_default();
-    println!("{:?}", recipes);
-    match connection.get_recipe(id) {
-        Ok(recipe) =>
-            ViewRecipeTemplate {
-                recipes,
-                current_recipe: recipe,
-            }.to_response(),
-        Err(_error) =>
-            MessageTemplate {
-                recipes,
-                message: format!("Unable to get recipe #{}", id),
-            }.to_response(),
-    }
+
+///// SIGN OUT /////
+
+#[get("/signout")]
+async fn sign_out(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
+    let mut response =
+        HttpResponse::Found()
+            .insert_header((header::LOCATION, "/"))
+            .finish();
+
+    if let Some(token_cookie) = req.cookie(COOKIE_AUTH_TOKEN_NAME) {
+        if let Err(error) = connection.sign_out(token_cookie.value()) {
+            eprintln!("Unable to sign out: {:?}", error);
+        };
+
+        if let Err(error) = response.add_removal_cookie(&Cookie::new(COOKIE_AUTH_TOKEN_NAME, "")) {
+            eprintln!("Unable to set a removal cookie after sign out: {:?}", error);
+        };
+    };
+    response
 }
 
 async fn not_found(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
     let recipes = connection.get_all_recipe_titles().unwrap_or_default();
     MessageTemplate {
+        user: get_current_user(&req, &connection),
         recipes,
         message: "404: Not found".to_string(),
     }
 }
 
-fn get_exe_name() -> String {
-    let first_arg = std::env::args().nth(0).unwrap();
-    let sep: &[_] = &['\\', '/'];
-    first_arg[first_arg.rfind(sep).unwrap()+1..].to_string()
-}
-
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
     if process_args() { return Ok(()) }
@@ -286,12 +426,12 @@ async fn main() -> std::io::Result<()> {
                 .service(sign_up_post)
                 .service(sign_up_check_email)
                 .service(sign_up_validation)
-                .service(sign_in_form)
-                .service(sign_in)
+                .service(sign_in_get)
+                .service(sign_in_post)
+                .service(sign_out)
                 .service(view_recipe)
                 .service(fs::Files::new("/static", "static"))
                 .default_service(web::to(not_found))
-                //.default_service(not_found)
         });
 
     server.bind(&format!("0.0.0.0:{}", port))?.run().await
@@ -324,27 +464,4 @@ fn process_args() -> bool {
     }
 
     false
-
-    /*
-
-
-    fn print_usage() {
-        println!("Usage:");
-        println!(" {} [--help] [--test]", get_exe_name());
-    }
-
-    let args: Vec<String> = args().collect();
-
-    if args.iter().any(|arg| arg == "--help") {
-        print_usage();
-        return true
-    } else if args.iter().any(|arg| arg == "--test") {
-        match db::Connection::new() {
-            Ok(_) => (),
-            Err(error) => println!("Error: {:?}", error)
-        }
-        return true
-    }
-    false
-    */
 }