fde4796479
Stored XSS: the previous get_file handler streamed user-supplied bytes
with Content-Disposition: inline, the user-supplied Content-Type, and
no X-Content-Type-Options / CSP. A Rhai script could store an SVG or
HTML payload whose download URL rendered same-origin under the admin
session cookie.
Closes the response side and the storage side:
* shared::sanitize_stored_content_type: allowlist
(octet-stream/pdf/json/text-plain/text-csv/image-non-svg/audio/video)
with anything else coerced to application/octet-stream. New unit tests
cover the safe/unsafe/case-insensitive/parameter-preserving paths.
* files_service::create/update: sanitize the stored content_type after
the shape checks pass (sanitize-after-validate keeps the existing
MissingField / TooLong errors intact). Two new tests confirm text/html
and image/svg+xml are coerced to application/octet-stream on
create/update respectively.
* files_api::get_file (admin download):
- Content-Disposition: attachment (was inline)
- Content-Type re-sanitized via the shared helper as belt-and-
suspenders for any pre-existing row that pre-dates this change.
- X-Content-Type-Options: nosniff
- Content-Security-Policy: default-src 'none'; sandbox;
frame-ancestors 'none'
- Referrer-Policy: no-referrer
Audit ref: security_audit/07_http_cors_csrf_xss.md#c07-02 (response side)
+ security_audit/06_files_pathtraversal.md#f-fs-001 (storage side).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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.