X-Git-Url: http://git.euphorik.ch/?p=recipes.git;a=blobdiff_plain;f=backend%2Fsrc%2Fservices.rs;fp=backend%2Fsrc%2Fservices.rs;h=df81c437b0224d098461a761704df75c54f57d1a;hp=0000000000000000000000000000000000000000;hb=d28e765e39e70ad2ab9a42885c786d5d8ba9ba40;hpb=8a3fef096d720666dc8a54789aee02250642d8a1

diff --git a/backend/src/services.rs b/backend/src/services.rs
new file mode 100644
index 0000000..df81c43
--- /dev/null
+++ b/backend/src/services.rs
@@ -0,0 +1,452 @@
+use std::collections::HashMap;
+
+use actix_web::{http::{header, header::ContentType, StatusCode}, get, post, web, Responder, HttpRequest, HttpResponse, cookie::Cookie};
+use askama_actix::{Template, TemplateToResponse};
+use chrono::Duration;
+use serde::Deserialize;
+use log::{debug, error, log_enabled, info, Level};
+
+use crate::utils;
+use crate::email;
+use crate::consts;
+use crate::config::Config;
+use crate::user::User;
+use crate::model;
+use crate::data::{db, asynchronous};
+
+///// UTILS /////
+
+fn get_ip_and_user_agent(req: &HttpRequest) -> (String, String) {
+    let ip =
+        match req.headers().get(consts::REVERSE_PROXY_IP_HTTP_FIELD) {
+            Some(v) => v.to_str().unwrap_or_default().to_string(),
+            None => req.peer_addr().map(|addr| addr.ip().to_string()).unwrap_or_default()
+        };
+
+    let user_agent = req.headers().get(header::USER_AGENT).map(|v| v.to_str().unwrap_or_default()).unwrap_or_default().to_string();
+
+    (ip, user_agent)
+}
+
+async 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(consts::COOKIE_AUTH_TOKEN_NAME) {
+        Some(token_cookie) =>
+            match connection.authentication_async(token_cookie.value(), &client_ip, &client_user_agent).await {
+                Ok(db::AuthenticationResult::NotValidToken) =>
+                    // TODO: remove cookie?
+                    None,
+                Ok(db::AuthenticationResult::Ok(user_id)) =>
+                    match connection.load_user_async(user_id).await {
+                        Ok(user) =>
+                            Some(user),
+                        Err(error) => {
+                            error!("Error during authentication: {}", error);
+                            None
+                        }
+                    },
+                Err(error) => {
+                    error!("Error during authentication: {}", error);
+                    None
+                },
+            },
+        None => None
+    }
+}
+
+type Result<T> = std::result::Result<T, ServiceError>;
+
+///// ERROR /////
+
+#[derive(Debug)]
+pub struct ServiceError {
+    status_code: StatusCode,
+    message: Option<String>,
+}
+
+impl From<asynchronous::DBAsyncError> for ServiceError  {
+    fn from(error: asynchronous::DBAsyncError) -> Self {
+        ServiceError {
+            status_code: StatusCode::INTERNAL_SERVER_ERROR,
+            message: Some(format!("{:?}", error)),
+        }
+    }
+}
+
+impl From<email::Error> for ServiceError  {
+    fn from(error: email::Error) -> Self {
+        ServiceError {
+            status_code: StatusCode::INTERNAL_SERVER_ERROR,
+            message: Some(format!("{:?}", error)),
+        }
+    }
+}
+
+impl From<actix_web::error::BlockingError> for ServiceError  {
+    fn from(error: actix_web::error::BlockingError) -> Self {
+        ServiceError {
+            status_code: StatusCode::INTERNAL_SERVER_ERROR,
+            message: Some(format!("{:?}", error)),
+        }
+    }
+}
+
+impl std::fmt::Display for ServiceError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::result::Result<(), std::fmt::Error> {
+        if let Some(ref m) = self.message {
+            write!(f, "**{}**\n\n", m)?;
+        }
+        write!(f, "Code: {}", self.status_code)
+    }
+}
+
+impl actix_web::error::ResponseError for ServiceError {
+    fn error_response(&self) -> HttpResponse {
+        MessageBaseTemplate {
+            message: &self.to_string(),
+        }.to_response()
+    }
+
+    fn status_code(&self) -> StatusCode {
+        self.status_code
+    }
+}
+
+///// HOME /////
+
+#[derive(Template)]
+#[template(path = "home.html")]
+struct HomeTemplate {
+    user: Option<User>,
+    recipes: Vec<(i32, String)>,
+    current_recipe_id: Option<i32>,
+}
+
+#[get("/")]
+pub async fn home_page(req: HttpRequest, connection: web::Data<db::Connection>) -> Result<HttpResponse> {
+    let user = get_current_user(&req, connection.clone()).await;
+    let recipes = connection.get_all_recipe_titles_async().await?;
+
+    Ok(HomeTemplate { user, current_recipe_id: None, recipes }.to_response())
+}
+
+///// VIEW RECIPE /////
+
+#[derive(Template)]
+#[template(path = "view_recipe.html")]
+struct ViewRecipeTemplate {
+    user: Option<User>,
+    recipes: Vec<(i32, String)>,
+    current_recipe_id: Option<i32>,
+    current_recipe: model::Recipe,
+}
+
+#[get("/recipe/view/{id}")]
+pub async fn view_recipe(req: HttpRequest, path: web::Path<(i32,)>, connection: web::Data<db::Connection>) -> Result<HttpResponse> {
+    let (id,)= path.into_inner();
+    let user = get_current_user(&req, connection.clone()).await;
+    let recipes = connection.get_all_recipe_titles_async().await?;
+    let recipe = connection.get_recipe_async(id).await?;
+
+    Ok(ViewRecipeTemplate {
+        user,
+        current_recipe_id: Some(recipe.id),
+        recipes,
+        current_recipe: recipe,
+    }.to_response())
+}
+
+///// MESSAGE /////
+
+#[derive(Template)]
+#[template(path = "message_base.html")]
+struct MessageBaseTemplate<'a> {
+    message: &'a str,
+}
+
+#[derive(Template)]
+#[template(path = "message.html")]
+struct MessageTemplate<'a> {
+    user: Option<User>,
+    message: &'a str,
+}
+
+//// SIGN UP /////
+
+#[derive(Template)]
+#[template(path = "sign_up_form.html")]
+struct SignUpFormTemplate {
+    user: Option<User>,
+    email: String,
+    message: String,
+    message_email: String,
+    message_password: String,
+}
+
+#[get("/signup")]
+pub async fn sign_up_get(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
+    let user = get_current_user(&req, connection.clone()).await;
+    SignUpFormTemplate { user,  email: String::new(), message: String::new(), message_email: String::new(), message_password: String::new() }
+}
+
+#[derive(Deserialize)]
+pub struct SignUpFormData {
+    email: String,
+    password_1: String,
+    password_2: String,
+}
+
+enum SignUpError {
+    InvalidEmail,
+    PasswordsNotEqual,
+    InvalidPassword,
+    UserAlreadyExists,
+    DatabaseError,
+    UnableSendEmail,
+}
+
+#[post("/signup")]
+pub async fn sign_up_post(req: HttpRequest, form: web::Form<SignUpFormData>, connection: web::Data<db::Connection>, config: web::Data<Config>) -> Result<HttpResponse> {
+    fn error_response(error: SignUpError, form: &web::Form<SignUpFormData>, user: Option<User>) -> Result<HttpResponse> {
+        Ok(SignUpFormTemplate {
+            user,
+            email: form.email.clone(),
+            message_email:
+                match error {
+                    SignUpError::InvalidEmail => "Invalid email",
+                    _ => "",
+                }.to_string(),
+            message_password:
+                match error {
+                    SignUpError::PasswordsNotEqual => "Passwords don't match",
+                    SignUpError::InvalidPassword => "Password must have at least eight characters",
+                    _ => "",
+                }.to_string(),
+            message:
+                match error {
+                    SignUpError::UserAlreadyExists => "This email is already taken",
+                    SignUpError::DatabaseError => "Database error",
+                    SignUpError::UnableSendEmail => "Unable to send the validation email",
+                    _ => "",
+                }.to_string(),
+        }.to_response())
+    }
+
+    let user = get_current_user(&req, connection.clone()).await;
+
+    // Validation of email and password.
+    if let common::utils::EmailValidation::NotValid = common::utils::validate_email(&form.email) {
+        return error_response(SignUpError::InvalidEmail, &form, user);
+    }
+
+    if form.password_1 != form.password_2 {
+        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, user);
+    }
+
+    match connection.sign_up_async(&form.email, &form.password_1).await {
+        Ok(db::SignUpResult::UserAlreadyExists) => {
+            error_response(SignUpError::UserAlreadyExists, &form, user)
+        },
+        Ok(db::SignUpResult::UserCreatedWaitingForValidation(token)) => {
+            let url = {
+                let host = req.headers().get(header::HOST).map(|v| v.to_str().unwrap_or_default()).unwrap_or_default();
+                let port: Option<i32> = 'p: {
+                    let split_port: Vec<&str> = host.split(':').collect();
+                    if split_port.len() == 2 {
+                        if let Ok(p) = split_port[1].parse::<i32>() {
+                            break 'p Some(p)
+                        }
+                    }
+                    None
+                };
+                format!("http{}://{}", if port.is_some() && port.unwrap() != 443 { "" } else { "s" }, host)
+            };
+
+            let email = form.email.clone();
+
+            match web::block(move || { email::send_validation(&url, &email, &token, &config.smtp_login, &config.smtp_password) }).await? {
+                Ok(()) =>
+                    Ok(HttpResponse::Found()
+                        .insert_header((header::LOCATION, "/signup_check_email"))
+                        .finish()),
+                Err(error) => {
+                    error!("Email validation error: {}", error);
+                    error_response(SignUpError::UnableSendEmail, &form, user)
+                },
+            }
+        },
+        Err(error) => {
+            error!("Signup database error: {}", error);
+            error_response(SignUpError::DatabaseError, &form, user)
+        },
+    }
+}
+
+#[get("/signup_check_email")]
+pub async fn sign_up_check_email(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
+    let user = get_current_user(&req, connection.clone()).await;
+    MessageTemplate {
+        user,
+        message: "An email has been sent, follow the link to validate your account.",
+    }
+}
+
+#[get("/validation")]
+pub async fn sign_up_validation(req: HttpRequest, query: web::Query<HashMap<String, String>>, connection: web::Data<db::Connection>) -> Result<HttpResponse> {
+    let (client_ip, client_user_agent) = get_ip_and_user_agent(&req);
+    let user = get_current_user(&req, connection.clone()).await;
+
+    match query.get("token") {
+        Some(token) => {
+            match connection.validation_async(token, Duration::seconds(consts::VALIDATION_TOKEN_DURATION), &client_ip, &client_user_agent).await? {
+                db::ValidationResult::Ok(token, user_id) => {
+                    let cookie = Cookie::new(consts::COOKIE_AUTH_TOKEN_NAME, token);
+                    let user =
+                        match connection.load_user(user_id) {
+                            Ok(user) =>
+                                Some(user),
+                            Err(error) => {
+                                error!("Error retrieving user by id: {}", error);
+                                None
+                            }
+                        };
+
+                    let mut response =
+                        MessageTemplate {
+                            user,
+                            message: "Email validation successful, your account has been created",
+                        }.to_response();
+
+                    if let Err(error) = response.add_cookie(&cookie) {
+                        error!("Unable to set cookie after validation: {}", error);
+                    };
+
+                    Ok(response)
+                },
+                db::ValidationResult::ValidationExpired =>
+                    Ok(MessageTemplate {
+                        user,
+                        message: "The validation has expired. Try to sign up again.",
+                    }.to_response()),
+                db::ValidationResult::UnknownUser =>
+                    Ok(MessageTemplate {
+                        user,
+                        message: "Validation error.",
+                    }.to_response()),
+            }
+        },
+        None => {
+            Ok(MessageTemplate {
+                user,
+                message: &format!("No token provided"),
+            }.to_response())
+        },
+    }
+}
+
+///// SIGN IN /////
+
+#[derive(Template)]
+#[template(path = "sign_in_form.html")]
+struct SignInFormTemplate {
+    user: Option<User>,
+    email: String,
+    message: String,
+}
+
+#[get("/signin")]
+pub async fn sign_in_get(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
+    let user = get_current_user(&req, connection.clone()).await;
+    SignInFormTemplate {
+        user,
+        email: String::new(),
+        message: String::new(),
+    }
+}
+
+#[derive(Deserialize)]
+pub struct SignInFormData {
+    email: String,
+    password: String,
+}
+
+enum SignInError {
+    AccountNotValidated,
+    AuthenticationFailed,
+}
+
+#[post("/signin")]
+pub async fn sign_in_post(req: HttpRequest, form: web::Form<SignInFormData>, connection: web::Data<db::Connection>) -> Result<HttpResponse> {
+    fn error_response(error: SignInError, form: &web::Form<SignInFormData>, user: Option<User>) -> Result<HttpResponse> {
+        Ok(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.clone()).await;
+    let (client_ip, client_user_agent) = get_ip_and_user_agent(&req);
+
+    match connection.sign_in_async(&form.email, &form.password, &client_ip, &client_user_agent).await {
+        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(consts::COOKIE_AUTH_TOKEN_NAME, token);
+            let mut response =
+                HttpResponse::Found()
+                    .insert_header((header::LOCATION, "/"))
+                    .finish();
+            if let Err(error) = response.add_cookie(&cookie) {
+                error!("Unable to set cookie after sign in: {}", error);
+            };
+            Ok(response)
+        },
+        Err(error) => {
+            error!("Signin error: {}", error);
+            error_response(SignInError::AuthenticationFailed, &form, user)
+        },
+    }
+}
+
+
+///// SIGN OUT /////
+
+#[get("/signout")]
+pub 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(consts::COOKIE_AUTH_TOKEN_NAME) {
+        if let Err(error) = connection.sign_out_async(token_cookie.value()).await {
+            error!("Unable to sign out: {}", error);
+        };
+
+        if let Err(error) = response.add_removal_cookie(&Cookie::new(consts::COOKIE_AUTH_TOKEN_NAME, "")) {
+            error!("Unable to set a removal cookie after sign out: {}", error);
+        };
+    };
+    response
+}
+
+pub async fn not_found(req: HttpRequest, connection: web::Data<db::Connection>) -> impl Responder {
+    let user = get_current_user(&req, connection.clone()).await;
+    MessageTemplate {
+        user,
+        message: "404: Not found",
+    }
+}