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palette/README.md
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Remove cans feature; add Secure flag to pw_/tok_ cookies
Owner decision 2026-10-16: the cans feature (bundles of pastes, #4) was
half-integrated and has zero prod usage; removing it eliminates four audit
findings by deletion.

Removed:
- internal/api/cans.go and all can routes (/api/pastes/can, /api/cans/*,
  /can/{id}) plus handleCanPage/renderCan
- is_can from /api/mine and /api/public responses
- store layer: CanRow, can store funcs, paste_cans UNION in listings,
  cans sweep; reserved slugs 'can'/'cans' released
- templates/can.html, can CSS, is_can badges in history.js/mine.js
- cans tests (cans_test.go, cans_flow_test.go, cans_expiry_test.go,
  TestErrorCodeCanValidation)
- docs/api.md cans section, README/LICENSE/docker-compose mentions

Store migration: drops paste_cans only when empty (non-empty table is
kept and logged; prod verified clean 2026-10-16) and drops the dormant
pastes.can_id column. Covered by new TestMigrateDropsCansSchema.

Security hardening (audit findings): pw_<id> (unlock) and tok_<id>
(deletion-token) cookies now carry Secure: true in addition to
HttpOnly + SameSite=Lax; all deployments are HTTPS-only. cookie_set_test
now asserts Secure.

go vet ./... and go test ./... pass.
2026-10-16 16:50:40 -05:00

104 lines
4.1 KiB
Markdown

# Palette
Palette is a fast, self-hosted pastebin. One Go binary, a SQLite database, and
a web UI for sharing text and small files.
> [!NOTE]
> <table><tr><td>
> <sub>✨ This project was built by AI — <strong>GLM 5.3 Flash</strong> on the <strong>Hermes Agent</strong> harness, with a human in the loop.</sub>
> </td></tr></table>
## Features
- Text pastes
- File attachments (one file per paste, up to 25 MB)
- Password protected pastes
- Expire after a specified time
- Burn after a number of views
- Custom URLs
- Syntax highlighting with language auto-detection (go-enry)
- Public paste listing with search, sort and pagination
- Cookie based saved pastes and settings
- Five base themes (midnight, smooth, pastel-lavender, pastel-peach, pastel-cloud), each with a dark and light variant
- Dark mode toggle in the topbar and settings, with a configurable default
- Polished code viewer: line-number gutter sized to the widest number and pinned during horizontal scroll, optional line wrap, jump-to-top/bottom buttons, and theme-aware scrollbars
## Screenshots
| | |
|---|---|
| ![Editor in midnight (dark)](https://git.archfox.org/poslop/palette/wiki/raw/palette-previews%2Fdesktop-editor-new.png) | ![Paste view in pastel-peach (light)](https://git.archfox.org/poslop/palette/wiki/raw/palette-previews%2Fdesktop-paste-pastel-peach-light.png) |
| ![Public pastes list](https://git.archfox.org/poslop/palette/wiki/raw/palette-previews%2Fdesktop-public.png) | ![Settings and theme picker](https://git.archfox.org/poslop/palette/wiki/raw/palette-previews%2Fdesktop-settings-themes.png) |
## Get Started
### Docker
```bash
docker run -p 8080:8080 -v palette-data:/data git.archfox.org/poslop/palette
```
The SQLite database lives in the `/data` volume inside the container.
## Docker Compose
See [docker-compose.yml](docker-compose.yml) for a ready-to-use example with
every environment variable documented, including which are required (only the
/data volume) and which are optional.
### Build from source
Requires Go 1.27+.
```bash
go build -o palette ./cmd/palette
./palette
# open http://localhost:8080
```
## Configuration
| Setting | Default | Description |
|---|---|---|
| `PALETTE_ADDR` | `:8080` | Listen address |
| `PALETTE_DB` | `palette.db` | SQLite database path |
| `PALETTE_MAX_TEXT` | `5242880` | Max paste size in bytes (5 MB) |
| `PALETTE_MAX_ITEM` | `26214400` | Max file attachment / multipart size in bytes (25 MB) |
| `PALETTE_ADMIN_KEY` | generated | Admin key; if unset a 32-char hex key is generated and persisted to `<db-dir>/admin-key` (0600) |
| `PALETTE_DEFAULT_DARK` | dark on | Default dark mode for new visitors. Set `false`, `0`, or `off` to default to light mode. Visitors who toggle dark mode keep their choice in their browser. |
| `PALETTE_UNLOCK_SECRET` | random per start | HMAC secret for password-unlock cookies. Set a fixed value to keep unlock sessions across restarts or across replicas. |
An `/admin` page exists for runtime settings, protected by a key set at
install (`PALETTE_ADMIN_KEY` env var) and resettable locally. See
[API](https://git.archfox.org/poslop/palette/wiki/API) and the [design docs](https://git.archfox.org/poslop/palette/wiki/Home) in the wiki for details.
## API
Full REST API: [wiki/API](https://git.archfox.org/poslop/palette/wiki/API). One example:
```bash
curl -X POST http://localhost:8080/api/pastes -d '{"content":"hello"}'
```
Design docs: [wiki/design](https://git.archfox.org/poslop/palette/wiki/design-attachments-storage) (e2e encryption, attachments & storage, cookie preferences).
## License
Palette is licensed under the GNU Affero General Public License v3.0
(AGPL-3.0-only). See [LICENSE](LICENSE).
The software is provided AS IS, without warranty of any kind, express or
implied, including merchantability and fitness for a particular purpose.
In no event shall the authors be liable for any claim, damages, or other
liability, including without limitation any security vulnerabilities,
data loss, or legal issues arising from use of the software. You use it
at your own risk.
If you run a modified version of Palette as a network service, the AGPL
requires you to offer your modified source code to its users.