funman300
a9a816e0ed
First Rust component of the Python -> Rust migration. Chosen first because
it is the lowest genuinely game-independent layer, it has an executable
oracle, and both existing Rust implementations of it are wrong.
Contents:
* fire2 -- the proven 16-byte frame header, frame/stream splitting
* heat2 -- tag packing, varints, all 11 TDF value types
* message -- frame + decoded body, routed by NUMERIC component/command
* diagnostics -- dumps for capture review
No FIFA 17 command tables, response schemas or notification IDs: this layer
knows 0x0009/0x0007 is component 9, command 7, not that it means
Util::preAuth. That mapping belongs to a game adapter, which is what lets a
future FIFA 18/23 adapter reuse this.
Parity is tested, not asserted. fixtures/generate.py drives the proven
Python responders (heat2.py, blaze_responder_v3b.py) and freezes 56 vectors
-- 31 of them real payloads from the responder's own builders, including
the 11.8 KB preAuth reply. tests/oracle_parity.rs replays every one
byte-for-byte. 54 tests green; clippy clean.
Supersedes two wrong framings, neither of which is removed yet:
* fifa-blaze/crates/blaze-proto/frame.rs -- a 12-byte header with a u16
length, nibble-packed type/options, an error field and a JUMBO flag.
A documented guess at FIFA 23 predating the FIFA 17 recon.
* heat2.py::build_fire2_frame -- packs >IHHHHB3s, msgId at [10:12] and
msgType at [12]. Dead code, but its docstring still states that layout.
Confidence is carried in the types: TypeId::is_verified() reports which
layouts are capture-backed (int/string/blob/struct) and which the oracle
marks UNVERIFIED (list/map/union/varlist/objtype/objid/float), with a test
asserting the unverified ones stay flagged.
Cargo.lock is deliberately NOT included: it re-resolves ~240 lines against
the current registry even without this crate, so that churn is pre-existing
and does not belong in a foundation commit.
The Python backend remains the live runtime and is untouched. Nothing
consumes this crate yet.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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.