funman300 6bbc0eaf4f fix(fifa17): never turn a missing manager ref into a manager deletion
The host called set_squad_manager unconditionally on every squad save, passing
the resolved manager or None. None was serialised as {"owned_card_id": null},
an EXPLICIT removal, so a save that merely said nothing about the manager
deleted the assignment. That is how a client whose squad model had been
destroyed wiped a real manager row (WAL commit 468, squad_managers 1 -> 0).

FIFA 17 has no wire shape that removes a manager: the client always sends a
ref. So None never means "the user cleared the slot" - it means the ref was
absent, zero, or unmappable, i.e. this save carries no manager decision. The
assignment is now left untouched and the skip is logged.

The capability is removed at the TYPE level: CoreAccess::set_squad_manager
takes &str, not Option<&str>, so the host cannot express a clear at all. Core
still supports deliberate removal via an explicit null for other callers.

The existing test asserted the destructive behaviour as intended ("a later save
without a manager CLEARS it"). That contract was the bug; it now asserts the
manager survives and that both saves still commit their slots. With the fix
reverted the test fails.

Live-proven on staging against the real route (PUT /ut/game/fifa17/squad/<n>;
squad/active is a GET-only tail and falls through to the dead Python upstream,
which is why an earlier replay attempt proved nothing):

  exact original shape (no resolvable players, manager: [])
    -> 502 core_error, core returned status 400, nothing mutated
  valid 23-player save carrying manager: []
    -> 200 {"id":0}, manager_write_skipped logged, manager PRESERVED
  valid 23-player save carrying the real manager ref
    -> 200 {"id":0}, manager assigned

Players 23/23, manager 1, captain, active club items, coins, integrity and FK
identical before and after, and again after a Core+host restart.
2026-08-24 19:59:09 +00:00

OpenFUT

⚠️ Status — see docs/PROJECT_STATE.md (canonical). The working, actively-developed target is FIFA 17, not FIFA 23. Everything below this banner describes the superseded FIFA 23 bridge lineage and is kept for historical context.

Run the server (canonical): cd fifa17-recon/docker/fifa17-python && docker compose up -d — see fifa17-recon/FUT-RUNBOOK.md. openfut-core is the shared offline backend (still used by the FIFA 17 path); openfut-bridge is the retired FIFA 23 integration.

Offline Ultimate Team — like SPT, but for FIFA 23.

OpenFUT replaces EA's retired FUT servers with a fully offline, single-player backend. You own FIFA 23 legitimately. You just want to keep playing after EA shut down the servers.


Repositories

Repo Purpose
openfut-core Game-independent offline FUT backend
openfut-bridge FIFA 23 integration layer + reverse-engineering proxy

Architecture

FIFA 23 client
      │
      ▼
┌─────────────────┐
│  openfut-bridge │  ← intercepts FUT traffic, maps routes, logs unknown
└────────┬────────┘
         │
         ▼
┌─────────────────┐
│  openfut-core   │  ← offline FUT backend: profiles, packs, squads, SBCs
└─────────────────┘
         │
         ▼
   SQLite database

Core is game-independent. It speaks a clean REST API and knows nothing about FIFA 23 internals.

Bridge is FIFA-specific. It speaks FIFA 23's wire protocol and translates it into Core API calls. Bridge is where all reverse engineering work happens.


Current Status

Feature Status
Local profiles + clubs Working
Coin system Working
Pack generator Working
Card collection Working
Squad builder Working
Objectives engine Working
SBC engine Working
Match rewards Working
NPC transfer market Working
Statistics Working
FIFA 23 integration 🔴 Reverse engineering in progress
Chemistry calculation 🟡 In progress
Full Draft mode 🟡 In progress
Squad Battles AI generator 🟡 In progress
Objectives claim flow 🟡 In progress

Running

# Start the offline backend
cd openfut-core
cargo run

# Start the proxy (for traffic capture / FIFA integration)
cd openfut-bridge
cargo run

Core listens on http://127.0.0.1:8080 by default. Bridge listens on http://127.0.0.1:8443 by default.


Design Principles

  • Offline-first. No EA account required. No internet connection needed.
  • Single-player only. This is not a multiplayer server emulator.
  • Data-driven. All cards, packs, SBCs, and objectives are JSON files. Everything is moddable.
  • Clean architecture. Core has zero knowledge of FIFA 23. Bridge has zero game logic.
  • No copyrighted assets. No real player images, no EA trademarks in data files.

Disclaimer

This project is not affiliated with EA Sports. You must own FIFA 23 legitimately to use this software. This project does not bypass any ownership verification and is intended only to restore offline playability of a game whose online services have been retired.

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