The FUT hub failed to load with "An error occurred downloading the FUT Squad
Update" because the client dials the roster (https://<advertise>:8081) and the
redirector BY IP, while the served certificate carried DNS SANs only
(winter15.gosredirector.ea.com + wildcards). The client aborts that handshake with
fatal certificate_unknown. Root cause and evidence in
docs/FIFA17_FUT_SQUAD_UPDATE_TLS.md (commit 082246c): a wire capture shows the client
offering TLS1.2 with RSA suites, the server selecting them, then rejecting the cert —
and autopatch demonstrably patched both ProtoSSL gates in that process, so this
validation path is NOT one of the two the client-side patch covers. The SAN is the fix.
Three generators produced the cert and none put the advertised IP in the SAN:
* docker entrypoint.sh — the production path. The advertised IP is a RUNTIME value
(OPENFUT_ADVERTISE), unknown at image-build time, so the cert is now reconciled at
startup: reissued with IP:$ADV,IP:127.0.0.1 in the SAN only when the current cert
lacks it. That makes a restart reuse the same cert (no per-start fingerprint churn,
which would otherwise recreate the Aug-13 surprise) and self-heal if $ADV changes.
* Dockerfile — installs openssl unconditionally so the entrypoint can reissue at
runtime (previously it was dropped with the apt lists), and bakes a loopback-IP
baseline cert so a plain `docker build` still yields a usable image.
* openfut-fut.sh — the local orchestrator. ensure_cert now defaults the SAN IP to this
host's primary LAN IP (OPENFUT_ADVERTISE overrides) and reissues when the cert lacks
it, instead of only generating when the file is absent.
Verified without the client, which is the strongest evidence obtainable here: a
verifying TLS client checking the cert BY IP rejects the old DNS-only cert ("IP address
mismatch, certificate is not valid for '10.10.0.120'") and accepts the new
IP-bearing cert; and the entrypoint reconcile is idempotent end to end — an old cert is
reissued to carry IP:$ADV, a simulated restart leaves the fingerprint unchanged, and
the final SAN carries both the advertised and loopback IPs.
Live confirmation needs the production container rebuilt with OPENFUT_ADVERTISE set
(operator-gated); production is otherwise untouched.
entrypoint.sh carries unrelated pre-existing uncommitted work (env-based component
selection) that is not on any branch; only the cert-reconcile block is committed here,
and that work is left intact in the working tree.
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.