automatically use email address as 2fa provider (#4317)

src/api/core/two_factor/email.rs

@@ -10,7 +10,7 @@ use crate::{
     auth::Headers,
     crypto,
     db::{
-        models::{EventType, TwoFactor, TwoFactorType},
+        models::{EventType, TwoFactor, TwoFactorType, User},
         DbConn,
     },
     error::{Error, MapResult},
@@ -297,6 +297,15 @@ impl EmailTokenData {
     }
 }
 
+pub async fn activate_email_2fa(user: &User, conn: &mut DbConn) -> EmptyResult {
+    if user.verified_at.is_none() {
+        err!("Auto-enabling of email 2FA failed because the users email address has not been verified!");
+    }
+    let twofactor_data = EmailTokenData::new(user.email.clone(), String::new());
+    let twofactor = TwoFactor::new(user.uuid.clone(), TwoFactorType::Email, twofactor_data.to_json());
+    twofactor.save(conn).await
+}
+
 /// Takes an email address and obscures it by replacing it with asterisks except two characters.
 pub fn obscure_email(email: &str) -> String {
     let split: Vec<&str> = email.rsplitn(2, '@').collect();
@@ -318,6 +327,14 @@ pub fn obscure_email(email: &str) -> String {
     format!("{}@{}", new_name, &domain)
 }
 
+pub async fn find_and_activate_email_2fa(user_uuid: &str, conn: &mut DbConn) -> EmptyResult {
+    if let Some(user) = User::find_by_uuid(user_uuid, conn).await {
+        activate_email_2fa(&user, conn).await
+    } else {
+        err!("User not found!");
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;