funman300 468bc0fba9 feat(market): isolated two-identity SOLD-row A/B harness (staging only, not promoted)
Static RE exhausted CardsDLL on the one open question: for a closed row
IS_GLOW = (bidState != none) and INBOX = (bidState in {highest, buyNow}), so
closed/highest and closed/buyNow are BIT-IDENTICAL natively. But bidState is
published to the movie verbatim as YOURBID, so the FUT ActionScript CAN separate
them. This builds the controlled experiment that asks the client which one it
treats as the seller's sale.

PRODUCTION SAFETY IS THE FIRST CONCERN
New module openfut-utas-host/src/sold_experiment.rs. Every knob is OFF unless its
env var is set, an unrecognised value is OFF rather than a default token (silently
picking one would fabricate the answer being measured), and the host logs a startup
banner naming the active variant so a staging capture can never be mistaken for a
production one. With no env set, /tradePile and /trade/status emit only real active
auctions (the Fix A invariant) and counts still report sold: 0. The entire existing
test suite now passes SoldExperiment::OFF explicitly, making it a regression guard.

  OPENFUT_FIFA17_SOLD_EXPERIMENT      = highest | buyNow   (else OFF)
  OPENFUT_FIFA17_SOLD_COINS_PROCESSED = 1                  (else 0)
  OPENFUT_FIFA17_SOLD_COUNT_MODE      = active_plus_sold    (else active)

WHAT THE EXPERIMENT PROJECTS
Uncleared sold listings appear in /tradePile and /trade/status as tradeState
"closed" with the token under test and currentBid = the sale price; counts report
the real sold tally. There is ONE record builder, so the A/B changes only what is
passed into it, and a test asserts that EXACTLY ONE field differs between the two
variants -- without that control the client's reaction is not attributable to the
token and the whole experiment is void. coinsProcessed (Flash COINS_AWARDED) varies
independently so the third pass cannot be confounded with the first.

CLEAR-SOLD, PE-PROVEN
New EconomyRoute::MarketClearSold for DELETE .../trade/sold, classified BEFORE the
generic trade cancel arm -- a `sold` tail carries no id, so the cancel handler would
have parsed nothing and acked while clearing nothing. Builder 0x1801647c0 emits
"/sold" when the tradeId field is zero and "/%lld" otherwise; the client calls it
RemoveAllSoldFromTradePile. New market-store column cleared_at records the seller's
acknowledgement SEPARATELY from the sale, so clearing can never be mistaken for
re-settling: it is presentation only, moves no coins and no ownership, and is
idempotent for client retries.

FOUND AND FIXED A LATENT STORE BUG
Adding a column via the additive ALTER path immediately after CREATE TABLE in the
same open() desynced sqlx's per-connection schema cache: a fresh store then read a
12-column row while metadata said 13, panicking a pool worker with an index
out-of-bounds and silently returning zero listings. Declaring cleared_at in
CREATE_LISTINGS fixes it; the ALTER now only serves pre-existing stores. This would
have bitten the next column too.

STAGING, WITHOUT TOUCHING PRODUCTION
The client learns the UTAS base from BLAZE (blaze_responder_v3b.py:646 hardcodes
:8099), and it dials that port directly, so redirecting UTAS means changing Blaze or
port 8099 -- both production. 10.10.0.121 is unreachable. The compliant path is a
parallel stack on spare ports plus a one-line change to the CLIENT's own config:
  * scripts/sold-staging-up.py / sold-staging-down.py -- staging Core 18081,
    utas-host 8299, Blaze 42327/42330/42331 advertising :8299, two seeded identities,
    own DBs under /home/alex/openfut-sold-staging/. Patches a COPY of the Blaze
    responder and asserts every substitution applied, so a silent no-op cannot leave
    it pointing at production. Kills only recorded pids whose cmdline contains the
    staging dir (openfut-utas-host matches BOTH, so pkill-by-pattern is banned).
  * docs/SOLD_STAGING_RUNBOOK.md -- the exact client change and its revert.
  * src/bin/staging_sell.rs -- the synthetic Buyer B, running the REAL settlement
    (CoreEconomy::settle_sale) then mark_sold. Settle-first ordering: a failure
    leaves the listing live with nothing moved. Refuses any path containing
    openfut-promotion or the production ports.
  * scripts/sold-wire-check.py -- proves the whole flow headless before any operator
    time is spent.

WIRE CHECK: 35/35 PASS on the canonical 150-coin sale. Seller 1,000 -> 1,143 (fee 7,
proceeds 143), buyer 20,000 -> 19,850, ownership transferred, exactly ONE
authoritative instance, economy shrank by exactly the fee. Sold row: closed,
currentBid 150, expires 0, twelve atoms, counts sold 1 / selling 0, /trade/status
agreeing. Variant B differs only in bidState and coinsProcessed. Clear: 200 {}, row
gone, counts.sold 0, no coins moved, buyer keeps the item, second clear a safe no-op.

Gates: 104 host lib tests (+9), all 7 host targets green, clippy clean, zero fmt
diffs in the new code. Settlement candidate unchanged. NOT PROMOTED.

Production untouched: prod-host pid 3631953 uptime 2h44m restarts=0, coins and
/tradePile unchanged, nothing under /home/alex/openfut-promotion/state/ opened.

The A/B itself is NOT yet run: it needs a real FIFA client, which is operator work.
2026-08-18 02:14:18 +00:00

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.

S
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