Generate reset password URL

geneit_backend/src/services/mail_service.rs

@@ -0,0 +1,33 @@
+use crate::app_config::AppConfig;
+use lettre::message::header::ContentType;
+use lettre::transport::smtp::authentication::Credentials;
+use lettre::{Message, SmtpTransport, Transport};
+use std::fmt::Display;
+
+pub async fn send_mail<D: Display>(to: &str, subject: &str, body: D) -> anyhow::Result<()> {
+    let conf = AppConfig::get();
+
+    let email = Message::builder()
+        .from(conf.mail_sender.parse()?)
+        .to(to.parse()?)
+        .subject(subject)
+        .header(ContentType::TEXT_PLAIN)
+        .body(body.to_string())?;
+
+    let mut mailer = match conf.smtp_tls {
+        true => SmtpTransport::relay(&conf.smtp_relay)?,
+        false => SmtpTransport::builder_dangerous(&conf.smtp_relay),
+    }
+    .port(conf.smtp_port);
+
+    if let (Some(username), Some(password)) = (&conf.smtp_username, &conf.smtp_password) {
+        mailer = mailer.credentials(Credentials::new(username.to_string(), password.to_string()))
+    }
+
+    let mailer = mailer.build();
+
+    mailer.send(&email)?;
+    log::debug!("A mail was sent to {} (subject = {})", to, subject);
+
+    Ok(())
+}

geneit_backend/src/services/mod.rs

@@ -1,4 +1,5 @@
 //! # Backend services
 
+pub mod mail_service;
 pub mod rate_limiter_service;
 pub mod users_service;

geneit_backend/src/services/users_service.rs

@@ -1,11 +1,19 @@
 //! # Users service
 
+use crate::app_config::AppConfig;
 use crate::connections::db_connection;
-use crate::models::{NewUser, User};
+use crate::models::{NewUser, User, UserID};
 use crate::schema::users;
+use crate::services::mail_service;
+use crate::utils::string_utils::rand_str;
 use crate::utils::time_utils::time;
 use diesel::prelude::*;
 
+/// Get the information of the user
+pub async fn get_by_id(id: UserID) -> anyhow::Result<User> {
+    db_connection::execute(|conn| Ok(users::table.filter(users::dsl::id.eq(id.0)).first(conn)?))
+}
+
 /// Create a new account
 pub async fn create_account(name: &str, email: &str) -> anyhow::Result<User> {
     db_connection::execute(|conn| {
@@ -32,3 +40,41 @@ pub async fn exists_email(email: &str) -> anyhow::Result<bool> {
         Ok(count != 0)
     })
 }
+
+/// Request password reset
+pub async fn request_reset_password(user: &mut User) -> anyhow::Result<()> {
+    // If required, regenerate reset token
+    if user.reset_password_token.is_none() || user.time_gen_reset_token as u64 + 3600 * 2 < time() {
+        user.reset_password_token = Some(rand_str(149));
+        user.time_gen_reset_token = time() as i64;
+
+        db_connection::execute(|conn| {
+            Ok(
+                diesel::update(users::dsl::users.filter(users::dsl::id.eq(user.id)))
+                    .set((
+                        users::dsl::time_gen_reset_token.eq(user.time_gen_reset_token),
+                        users::dsl::reset_password_token.eq(user.reset_password_token.clone()),
+                    ))
+                    .execute(conn)?,
+            )
+        })?;
+    }
+
+    // Send mail
+    mail_service::send_mail(
+        &user.email,
+        "Réinitialisation de votre mot de passe",
+        format!(
+            "Bonjour, \n\n\
+            Vous pouvez réinitialiser le mot de passe de votre compte à l'adresse suivante : {} \n\n\
+            Ce lien est valide durant 24 heures.\n\n\
+            Cordialement,\n\n\
+            L'équipe de GeneIT",
+            AppConfig::get()
+                .get_password_reset_url(user.reset_password_token.as_deref().unwrap_or(""))
+        ),
+    )
+    .await?;
+
+    Ok(())
+}