funman300
b25761ea31
Backend side of the handshake: suppress the synthetic 65534 My-Packs sentinel
ONLY for a session whose client has registered a verified resolver-guard
capability. Additive; the P2 active-sentinel path is retained as the else-branch
and the universal default. Fail-closed everywhere.
- Per-client state keyed by source IP (client_address[0]; the only per-connection
discriminator in this single-account, stateless backend): _FIFA17_STORE[ip] =
{resolver, mode}; mode in {None, "sentinel", "clean-v1"}, guarded by a lock.
- New POST /openfut/fifa17/capability endpoint: accepts only
{"capability":"empty_mypacks_resolver","version":1,...}; unknown capability or
version => 400 and records nothing (=> sentinel).
- account_sync (the launcher's required per-launch call) resets the per-ip record
=> a new FIFA process starts unfrozen with no inherited capability.
- Store topology is frozen at the FIRST /store/purchasegroup per session:
clean-v1 iff a v1 capability is registered, else sentinel; immutable thereafter
(late capability logged + ignored this session; a disappeared capability does
not un-freeze a clean session). This enforces the SESSION-STABLE invariant.
- store_catalog zero-owned-packs branch: clean-v1 emits NO mypacks group (the
client guard routes category -1 to Browse); every other case emits the existing
active 65534 sentinel verbatim. PACK_CATALOG / pack 70 / normal packs / profile
untouched. FIFA-17 only; not lifted into game-independent Core.
- Tests: full matrix A-J incl. concurrency isolation (two IPs, no global leak) and
no cross-process capability leak.
Design: docs/plans/FIFA17_PATCHED_CLIENT_CAPABILITY.md.
OpenFUT
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.