MechaCat02 bd64a25c97 fix(audit-2026-06-11/H-F1): dispatcher same-app guards on queue + HTTP arms
build_invoke_request already asserts `script.app_id == row.app_id`
(dispatcher.rs:752) before constructing an ExecRequest. The queue
dispatcher (`dispatch_one_queue`) and the HTTP outbox arm
(`build_http_request`) did not. validate_trigger_target blocks cross-
app registration at write time, so the gap was latent; but a hand-
edited row, a partial backup restore, or a script re-pointed across
apps post-hoc could otherwise execute one app's script under another
app's SdkCallCx, breaking the cross-app isolation boundary the SDK
relies on.

Adds the runtime guard at both sites:
* dispatch_one_queue — on mismatch, dead-letter the message so the
  misfire is observable rather than silently dropped, and short-
  circuit.
* build_http_request — on mismatch, return ResolveTrigger error; the
  outer dispatch arm logs + drops the row (same path as decode
  failures).

Audit ref: security_audit/02_authz_isolation.md (H-F1).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-06-11 20:36:33 +02:00

PiCloud

A lightweight, self-hosted, event-driven serverless compute platform. Upload a Rhai script, get an HTTP endpoint. Designed to run on a single modest server with no idle CPU cost, and to scale out to a small cluster when you need it.

Status: Phase 1 — MVP scaffolding in progress.

The authoritative design lives in serverless_cloud_blueprint.md.

Why

Existing serverless platforms are either cloud-locked, heavyweight, or both. PiCloud aims for the opposite end of the spectrum: one binary, one database, one reverse proxy — running on hardware you already own.

Architecture (one paragraph)

PiCloud splits into three logical services — manager (control plane: scripts, schedules, dashboard), orchestrator (per-node event ingress and dispatch), and executor (per-node Rhai sandbox) — each backed by a *-core Rust library. In MVP they run in a single process; in cluster mode they run as three binaries with one manager and one orchestrator + executor per node. Caddy fronts everything; PostgreSQL is the single source of truth.

See CLAUDE.md for working notes and serverless_cloud_blueprint.md for the full design.

Quick Start

Coming as scaffolding lands. For now:

# Rust toolchain (pinned via rust-toolchain.toml)
cargo check --workspace

# Run the all-in-one MVP binary (once main.rs is wired up)
cargo run -p picloud

Repository Layout

crates/
  shared/                 cross-cutting types
  executor-core/          Rhai engine + sandbox
  orchestrator-core/      event ingress, dispatch
  manager-core/           control plane
  picloud/                MVP all-in-one binary
  picloud-{manager,orchestrator,executor}/   cluster-mode binaries (skeleton)
dashboard/                SvelteKit
caddy/                    Caddyfile
docker/                   Dockerfiles
docs/
  git-workflow.md         Trunk-based workflow

Contributing

See docs/git-workflow.md for the branching and commit conventions. TL;DR: trunk-based, short-lived branches, Conventional Commits, no force-pushing main.

License

TBD.

Description
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