writeonce/docs/examples/shop/static_files/controller.wo
shoney.arickathil 0b2a5ebc32 feat(shop): the program template — MVC on disk; story 37 redirected
- docs/examples/shop: types.wo model, per-feature view modules
  (render() classes), root controller files, layout shell/header/
  footer, static assets controller + real style.css, README with
  Angular file map + run + DX referendum notes
- buy flow proven by hand: stock check/decrement, 409s, traversal
  404, css typed, WAL-durable; builds on the UNPATCHED toolchain
- two language gaps recorded, not fixed (per directive): pub+@table
  cannot combine (controllers forced into root module); @view
  projection classes absent
- story 37 REDIRECTED per Vue-SFC review: view.html compiled by woc
  ({{}} auto-escaped, w:if/w:for, typed against view class, no
  runtime engine); render()-as-concatenation failed the referendum;
  forks revised; shop named the acceptance consumer

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-23 23:57:44 +02:00

33 lines
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-- static_files/controller.wo — serves /assets/* from disk. Traversal-
-- safe (any ".." answers 404, never touches the filesystem), extension-
-- mapped content types, 2 MiB cap per file. Text is binary-safe, so
-- images travel as-is. (Story 38 lifts this into the framework; until
-- then the template carries its own copy — it is ~40 lines.)
use framework/http
use fs
pub class StaticFiles {
dir: Text
fn handle(req: Req) -> Resp {
let rel = req.params["path"];
if rel == nil {
return not_found();
}
if index_of("${rel}", "..") != -1 {
return not_found();
}
let body = try fs.read_all("${self.dir}/${rel}", 2097152) catch (e) nil;
if body == nil {
return not_found();
}
let ct = "application/octet-stream";
if ends_with("${rel}", ".css") { ct = "text/css; charset=utf-8"; }
if ends_with("${rel}", ".js") { ct = "text/javascript"; }
if ends_with("${rel}", ".svg") { ct = "image/svg+xml"; }
if ends_with("${rel}", ".png") { ct = "image/png"; }
if ends_with("${rel}", ".webp") { ct = "image/webp"; }
let h: map<Text, Text> = {};
h["content-type"] = ct;
return Resp { status: 200, headers: h, body: "${body}" };
}
}