87 lines
3.4 KiB
Markdown
87 lines
3.4 KiB
Markdown
# smolweb
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Serve a folder of Markdown as [Gemini](https://geminiprotocol.net/) capsules,
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[Spartan](https://portal.mozz.us/gemini/spartan.mozz.us/) capsules, and HTTP
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pages content-negotiated between WML (WAP 1.x) and XHTML-MP (WAP 2.0 and
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modern browsers) — all rendered on the fly, no build step.
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```bash
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smolweb --root ./content --host example.com
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```
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Every listener binds by default: Gemini on `:1965` (TLS), Spartan on `:300`,
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HTTP on `:8080`. An empty address disables one:
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```bash
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smolweb --root ./content --host example.com --spartan ""
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```
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## Rendering
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Markdown is parsed once per file (cached by mtime, re-parsed the moment the
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file changes) and rendered into every format from the same source:
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- **gemtext** via [md2txt](https://code.randogoth.com/randogoth/md2txt)'s `gemini` renderer.
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- **WML** and **XHTML-MP** via [wapdown](https://code.randogoth.com/randogoth/wapdown).
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Both libraries read the same leading `---` frontmatter block independently
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and ignore keys they don't recognise, so one file can freely mix wapdown's
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deck-structure keys (`title`, `split_level`, `deck_per_card`, ...) with
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md2txt's typography keys (`links_per_block`, ...).
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wapdown's `{.card Title}` card-break directive has no meaning to md2txt's
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parser, so it is stripped before gemtext rendering rather than leaking
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through as literal text — a card break already renders as nothing in
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XHTML-MP for the same reason (cards are a WAP 1.x screen-budget concern;
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a Gemini client or browser just scrolls through one continuous document).
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## URLs
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Links should be root-relative and extensionless (`[about](/about)`, not
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`about.md`) — the same link then resolves identically from a Gemini,
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Spartan, or HTTP client:
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| Request | Serves |
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| --- | --- |
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| `/` | `index.md` |
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| `/foo` | `foo.md`, else `foo/index.md` |
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| `/foo.md` | redirects to `/foo` |
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| `/img.png` | served as-is, by MIME type |
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A document with `deck_per_card: true` gets its own URL space for WML only:
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`/trail` serves the whole document (the menu deck, if it has one), and
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`/trail/weather` serves one card's own deck directly. Gemini, Spartan, and
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an HTTP client negotiating gemtext/XHTML-MP all redirect `/trail/weather`
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back to `/trail` instead — that URL space only ever makes sense for WML.
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## HTTP content negotiation
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| Accept | Served as |
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| --- | --- |
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| `text/vnd.wap.wml` (literal, non-wildcard) | WML |
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| `application/vnd.wap.xhtml+xml` (literal, non-wildcard) | XHTML-MP |
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| anything else, including a `*/*` wildcard or no header at all | the same XHTML-MP body, as `text/html` |
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A `*/*` wildcard never selects WML — a browser's `Accept: text/html,
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application/xhtml+xml;q=0.9,*/*;q=0.8` must never be handed WML through the
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wildcard. `?format=wml`, `?format=xhtml`, or `?format=html` overrides
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negotiation outright, for testing without real WAP hardware.
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## TLS
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If `--cert`/`--key` don't exist, a self-signed EC P-256 certificate is
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generated on first run (via `openssl`, so devbox must provide it), valid for
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ten years. Gemini clients use TOFU (trust-on-first-use) fingerprint pinning
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rather than CA validation, so this is the norm rather than a warning.
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## Development
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```bash
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devbox run sync # install everything, including wapdown/md2txt
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devbox run test # pytest
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devbox run run # serve ./content on localhost, Spartan on :3000 (unprivileged)
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```
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`pyproject.toml` currently points `wapdown`/`md2txt` at local paths (see the
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comment there) rather than their git origins, since this checkout carries
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unpushed changes to both.
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