octoturge
9eab5e5a04
Certs: - Vendor Bambu's shared LAN-mode root CA (certs/bambu_ca2.pem, verified self-signed CA:TRUE, see certs/README.md for provenance/fingerprint). - Config gains bambu_ca_cert_path (per-printer override) and bambu_require_valid_cert (the allow/reject flag); printer::bambu::BambuTls turns those into BundledCa/Custom/Insecure. connect() doesn't perform a real handshake yet (no TLS-capable MQTT client wired in), just reports which trust mode it would use. Also reconciles a rename in flight (Printer -> GenericPrinter trait) and finishes the PrusaPrinter -> PrusaLinkPrinter/PrusaSerialPrinter split: added the missing GenericPrinter impl for PrusaSerialPrinter, fixed PrinterHandle's variant payload types, updated mod.rs's pub use list and doc comments, and updated the example to the new 5-variant shape. Verified with cargo check --all-targets (0 errors) and a full run of cargo run --example printer_polymorphism.
continuum-proxy
Edge gateway daemon for the Continuum print farm platform. Runs on a Linux
SBC on-site, talks to printers over the LAN, and keeps a connection to the
cloud control plane (continuum-backend).
This is a learning-stage boilerplate
This repo is deliberately minimal right now — real printer protocol clients
(Bambu MQTT+FTPS, PrusaLink REST, Klipper/Moonraker WebSocket) are not
implemented yet. Each vendor is a stub that just prints what it would do
(src/printer/bambu.rs, prusa.rs, klipper.rs). The idea is to learn
Rust's polymorphism pattern (trait + enum, since Rust has no class
inheritance) on something simple before adding real networking on top.
Getting started
cp .env.example .env
cargo run # the daemon: cloud uplink + go2rtc watchdog
cargo run --example printer_polymorphism # standalone demo, no network/env needed
Structure
src/
main.rs Runs the uplink and the go2rtc watchdog side by side
config.rs Loads settings from environment variables
uplink/ WebSocket client to continuum-backend: connect, heartbeat, reconnect on drop
printer/ Printer trait + PrinterBase + PrinterHandle enum + one stub per vendor
go2rtc.rs Restarts the go2rtc camera-restreaming process if it dies
examples/
printer_polymorphism.rs Runs all three printer stubs through one `connect()` call site
src/printer/ is where the "inheritance" question lives — see that
module's doc comment for the trait+enum pattern this project uses instead
of class inheritance, and run the example above to see it work.
What's not here yet (on purpose)
- Real MQTT/FTPS/HTTP/WebSocket printer clients —
src/printer/*.rshas aprintln!where each of these will go. - Local SQLite buffering for telemetry across connectivity gaps.
- LAN printer discovery (SSDP/mDNS).
- The mechanical plate-changer interface (serial/GPIO).
Add these back in one at a time as you get comfortable with the Rust underneath them — each is its own small lesson (async I/O, a new crate's API, error handling for a real protocol) rather than something to absorb all at once.