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- /**
- * Deterministic loopback HTTP fixture for the web-fetch snapshot scenario: a
- * small HTML page (headings, named entities, a GFM table, nested formatting)
- * on a fixed port, so recording and keyless replay drive the REAL
- * `dsh-web-fetch-local` transport and `dsh-tool-web` markdown rendering
- * without external network. The port is fixed because the fetched URL is part
- * of the recorded model transcript.
- */
- import { createServer } from 'node:http'
- /** Fixed loopback port the scenario prompt points `web_fetch` at. */
- const PORT = 43117
- const PAGE = `<!doctype html>
- <html><head><title>Menu</title><style>.x{color:red}</style><script>ignored()</script></head>
- <body>
- <h1>Café menu</h1>
- <p>Prices include <strong>service & <em>tax</em></strong> — updated daily.</p>
- <ul><li>Espresso</li><li>Flat white</li></ul>
- <table><thead><tr><th>Drink</th><th>Price</th></tr></thead><tbody><tr><td>Espresso</td><td>€2</td></tr><tr><td>Flat white</td><td>€3</td></tr></tbody></table>
- <p>See <a href="https://fixture.invalid/specials">today’s specials</a>.</p>
- </body></html>
- `
- /** Cordis plugin name. */
- export const name = 'web-fetch-fixture-server'
- /**
- * Start the fixture server on 127.0.0.1 and register its shutdown.
- * @param ctx - Cordis context; the effect disposes the server with the fiber.
- */
- export async function apply(ctx) {
- const server = createServer((req, res) => {
- if (req.url === '/menu.html') {
- res.writeHead(200, { 'content-type': 'text/html; charset=utf-8' })
- res.end(PAGE)
- return
- }
- res.writeHead(404, { 'content-type': 'text/plain; charset=utf-8' })
- res.end('not found')
- })
- await new Promise((resolve, reject) => {
- server.once('error', reject)
- server.listen(PORT, '127.0.0.1', () => resolve(undefined))
- })
- // The fixture must never hold the process open past protocol shutdown.
- server.unref()
- ctx.effect(() => async () => {
- await new Promise((resolve, reject) => {
- server.close(error => error ? reject(error) : resolve(undefined))
- // Stop accepting first so a connection cannot arrive after the forced close.
- server.closeAllConnections()
- })
- }, 'web-fetch-fixture-server')
- }
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