OpenFUT Bridge

FIFA 23 integration layer and reverse-engineering proxy.

OpenFUT Bridge sits between the FIFA 23 client and the internet. It intercepts all FUT API traffic, logs every request, and routes known endpoints to OpenFUT Core. Unknown endpoints receive safe placeholder responses so the client keeps running.

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What it does

• Transparent HTTP proxy — point FIFA 23 here instead of EA's servers
• Logs every request (method, path, headers, body, timestamp) to captures/
• Maps known FUT endpoints to OpenFUT Core API calls
• Returns placeholder JSON for unknown endpoints (prevents client crashes)
• Admin API for reviewing captures and identifying unmapped routes
• Foundation for building the full FIFA 23 integration

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Architecture

FIFA 23 client
      │
      ▼
OpenFUT Bridge (port 8443)
      │
      ├── Known route → OpenFUT Core (port 8080)
      └── Unknown route → Placeholder JSON + saved to captures/

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Quick Start

# Run Core first
cd ../openfut-core && cargo run

# Run Bridge
cargo run

# Or with config
CORE_URL=http://127.0.0.1:8080 BRIDGE_LISTEN_ADDR=127.0.0.1:8443 cargo run

Environment Variables

Variable	Default	Description
BRIDGE_LISTEN_ADDR	127.0.0.1:8443	Bridge listen address
CORE_URL	http://127.0.0.1:8080	OpenFUT Core URL
CAPTURES_DIR	captures	Where to save captured requests
PLACEHOLDER_MODE	true	Return 200 for unknown endpoints

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Admin API

Method	Path	Description
GET	/_bridge/health	Bridge status
GET	/_bridge/captures	All captured requests
GET	/_bridge/unknown	Unknown endpoints only

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Reverse Engineering Workflow

1. Point FIFA 23 at the Bridge (see docs/setup-notes.md for proxy setup)
2. Start a game session
3. Check captures/ or /_bridge/unknown for new endpoints
4. Document the endpoint in docs/endpoint-map.md
5. Add a mapping in src/mapper.rs
6. Implement the Core handler

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Proxy Setup (Research Notes)

See docs/setup-notes.md for notes on:

• Windows hosts file redirection
• RPCS3 network config (PS3)
• Certificate bypass approaches
• mitmproxy integration

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Development

cargo fmt
cargo clippy -- -D warnings
cargo test

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License

MIT