funman300
772f8a615a
Corrects the record against the CLIENT BINARY rather than library hearsay, using
the project's own reverse-engineering record
(fifa17-recon/docs/plan-2026-08-06-transfer-market.md, read out of the on-disk PE).
REVERTED (refuted): `tradeOwner`, `sellerId`, `offers`. FIFA 17's auctionInfo
deserializer (0x18013e410) reads exactly TWELVE atoms -- bidState, buyNowPrice,
currentBid, expires, itemData, sellerEstablished, sellerName, startingBid,
coinsProcessed, tradeId, tradeState, watched -- and value-SKIPs everything else at
0x180135ff0. Those three fields were added last commit on the strength of
contemporaneous FIFA 17 libraries; the PE says the client never reads them, so they
were inert and could not have been the Actions-panel gate. A preservation emulator
must not emit fields the client does not consume. New test pins the exact set.
ADDED: the auction clock. `expires` is SECONDS REMAINING (never an epoch) and the
client renders a LIVE COUNTDOWN it expects to reach 0. We hardcoded 3600, so no
auction ever aged or ran out. Now `duration` is taken from the ISStart body
(additive `duration_secs` column, defaulting to 3600) and `expires` is derived from
created_at + duration - now, clamped at 0. An active listing whose clock has run
out projects as `expired`/`none`/`expires: 0` -- FIFA 17's relistable state, per the
lifecycle table (active=1 inactive=2 expired=3 closed=4; none=0 outbid=1 highest=2
buyNow=3, both closed vocabularies). Pure projection: no row is mutated, so no
sweeper and no race with the economy.
ADDED: `duplicateItemIdList: []` on GetTradePile, which shares one deserializer
(0x18013e7f0) with ISSearch/ISWatchList over four members and we were omitting one.
CONFIRMED by the same source, so kept: `GET ut/{ns}/trade/status?tradeIds=a,b,c` is
real (ISVIEWTRADE) and my handler matches it exactly, including the comma list.
`ISREMOVETRADE` is `DELETE ut/delete/{ns}/trade/{tradeId}` -- our ORIGINAL spelling
was right. The plain-DELETE arm stays because the same source advises dispatching
on path and being method-agnostic (HTTP verbs are not statically recoverable).
Differential returns to strict key-set parity, with a comment recording WHY parity
is not sufficient: a field absent from both sides is invisible to it.
333 tests pass, 0 failed, clippy clean. Verified live: the twelve-atom record, the
four-member envelope, and the listing correctly reading expires=0 / expired after
aging past its hour.
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.