chore: migrate authifier into codebase (#658)

Co-authored-by: izzy <me@insrt.uk>
Signed-off-by: Zomatree <me@zomatree.live>
Signed-off-by: izzy <me@insrt.uk>

crates/delta/src/routes/mfa/generate_recovery.rs

@@ -0,0 +1,66 @@
+//! Re-generate recovery codes for an account.
+//! PATCH /mfa/recovery
+use revolt_database::{Account, ValidatedTicket, Database};
+use revolt_result::Result;
+use rocket::serde::json::Json;
+use rocket::State;
+
+/// # Generate Recovery Codes
+///
+/// Re-generate recovery codes for an account.
+#[openapi(tag = "MFA")]
+#[patch("/recovery")]
+pub async fn generate_recovery(
+    db: &State<Database>,
+    mut account: Account,
+    _ticket: ValidatedTicket,
+) -> Result<Json<Vec<String>>> {
+    // Generate new codes
+    account.mfa.generate_recovery_codes();
+
+    // Save account model
+    account.save(db).await?;
+
+    // Return them to the user
+    Ok(Json(account.mfa.recovery_codes))
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::{rocket, util::test::TestHarness};
+    use revolt_database::MFATicket;
+    use rocket::http::{ContentType, Header, Status};
+    #[rocket::async_test]
+    async fn success() {
+        let harness = TestHarness::new().await;
+        let (account, session, _) = harness.new_user().await;
+
+        let ticket1 = MFATicket::new(account.id.to_string(), true);
+        ticket1.save(&harness.db).await.unwrap();
+
+        let ticket2 = MFATicket::new(account.id, true);
+        ticket2.save(&harness.db).await.unwrap();
+
+        let res = harness.client
+            .patch("/auth/mfa/recovery")
+            .header(Header::new("X-Session-Token", session.token.clone()))
+            .header(Header::new("X-MFA-Ticket", ticket1.token))
+            .header(ContentType::JSON)
+            .dispatch()
+            .await;
+
+        assert_eq!(res.status(), Status::Ok);
+        assert!(res.into_json::<Vec<String>>().await.is_some());
+
+        let res = harness.client
+            .post("/auth/mfa/recovery")
+            .header(Header::new("X-Session-Token", session.token))
+            .header(Header::new("X-MFA-Ticket", ticket2.token))
+            .header(ContentType::JSON)
+            .dispatch()
+            .await;
+
+        assert_eq!(res.status(), Status::Ok);
+        assert_eq!(res.into_json::<Vec<String>>().await.unwrap().len(), 10);
+    }
+}