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Garry TanandClaude Fable 5.1
8ef842fc75
Real captures from a human-initiated `npx impeccable install` in a scratch directory (engine 0.1.3, linux-x64), never a runtime download: - test/fixtures/impeccable-antipatterns.json: upstream crates/live/assets/antipatterns.json at 87d8f6d6 (the state engine-v0.1.3 shipped), 61 rules, source commit recorded in `_source`. - test/fixtures/impeccable-detect-sample.json: `detect --json` over gstack's planted-slop fixture (source mode), paths normalized. - test/fixtures/review-eval-design-slop.dom.html + impeccable-detect-dom-sample.json: the same page served locally, dumped through the browse engine with the shared DOM-dump script, then scanned. Pins the load-bearing assumption that the static engine reads inline <style> in a .html file: the DOM scan yields the same id set as the source scan. - lib/dom-dump-script.ts: the one dump script both browser engines evaluate (IIFE, no single quotes). Folds CSSOM rgb() back to author hex so palette rules still fire, and removes inlined <link> nodes so the engine does not warn about an unresolvable stylesheet. Both verified against the engine. - test/fixtures/impeccable-detect-help.txt + impeccable-captures.meta.json: the flags, exit codes, finding fields, and re-capture protocol. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
88 lines
5.0 KiB
TypeScript
88 lines
5.0 KiB
TypeScript
// lib/dom-dump-script.ts — the rendered-DOM dump script design-review evaluates
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// in the page before handing the result to the design detector.
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//
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// Pure module: no I/O, no imports from scripts/. Consumers:
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// scripts/resolvers/design.ts renders it once as a fenced JS block (Phase 3)
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// test/fixtures/*.dom.html captured by running it through the browse engine
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// test/impeccable-fixtures.test.ts pins that the committed dump came from THIS script
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//
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// Contract (one script, two engines):
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// - An IIFE expression: Aside's `pg.evaluate(...)` and `$B eval <file>` both
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// wrap an expression, and every `aside repl '...'` body is a single-quoted
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// bash string, so the text contains NO single-quote characters and no `${`.
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// - Works on a CLONE of document.documentElement, never the live page.
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// - Inlines only the stylesheets a <link> owns (inline <style> nodes are
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// already in the markup; re-serializing them double-counts) as one
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// <style data-gstack-dom-css> in <head>, and removes each inlined <link>
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// from the clone so the static engine does not try to resolve its href
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// relative to the dump file. Cross-origin sheets throw on cssRules access,
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// stay as <link>, and are listed in the trailing HTML comment.
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// - The CSSOM serializes author hex colors as rgb(r, g, b); the engine's
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// palette rules (ai-color-palette, cream-palette, ...) match hex literals,
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// so opaque rgb() triples are folded back to #rrggbb. Verified on engine
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// 0.1.3: without this fold the DOM dump loses ai-color-palette.
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// - Hygiene before the file leaves the browser: <script> bodies emptied,
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// <input>/<textarea> values dropped, `value=` and `data-*` attributes over
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// 32 chars emptied, <meta content> emptied (charset and viewport kept: they
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// carry no user data and the viewport hint is layout-relevant), href query
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// strings cut, data: URLs over 1 KB replaced by a placeholder in attributes
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// and in the inlined CSS.
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// - The trailing comment names what the dump cannot contain (shadow DOM,
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// constructed stylesheets, runtime-injected styles when scripts were
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// stripped) so the report can say so once.
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export const DOM_DUMP_SCRIPT = String.raw`(() => {
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const root = document.documentElement.cloneNode(true);
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const head = root.querySelector("head") || root;
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const inlined = [];
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const crossOrigin = [];
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const liveLinks = Array.from(document.querySelectorAll("link"));
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const cloneLinks = Array.from(root.querySelectorAll("link"));
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liveLinks.forEach((link, i) => {
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const sheet = link.sheet;
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if (!sheet) return;
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try {
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const text = Array.from(sheet.cssRules).map((rule) => rule.cssText).join("\n");
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inlined.push("/* gstack-dom-dump: " + (sheet.href || "link") + " */\n" + text);
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if (cloneLinks[i]) cloneLinks[i].remove();
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} catch (err) {
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crossOrigin.push(sheet.href || "(unknown)");
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}
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});
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if (inlined.length) {
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const style = document.createElement("style");
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style.setAttribute("data-gstack-dom-css", "");
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const dataUrl = new RegExp("url\\((\"?)data:[^)]{1024,}\\)", "g");
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const rgb = new RegExp("rgb\\((\\d+), (\\d+), (\\d+)\\)", "g");
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const hex = (n) => Number(n).toString(16).padStart(2, "0");
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style.textContent = inlined.join("\n")
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.replace(dataUrl, "url(data:,gstack-stripped)")
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.replace(rgb, (m, r, g, b) => "#" + hex(r) + hex(g) + hex(b));
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head.appendChild(style);
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}
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let scripts = 0;
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for (const el of Array.from(root.querySelectorAll("script"))) {
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if (el.textContent) { el.textContent = ""; scripts += 1; }
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}
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for (const el of Array.from(root.querySelectorAll("textarea"))) el.textContent = "";
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for (const el of Array.from(root.querySelectorAll("*"))) {
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for (const attr of Array.from(el.attributes)) {
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const name = attr.name;
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const value = attr.value;
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if (name === "value" && (el.nodeName === "INPUT" || el.nodeName === "TEXTAREA")) el.setAttribute(name, "");
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else if ((name === "value" || name.indexOf("data-") === 0) && value.length > 32) el.setAttribute(name, "");
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else if (name === "content" && el.nodeName === "META" && el.getAttribute("name") !== "viewport") el.setAttribute(name, "");
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else if (name === "href" && value.indexOf("?") !== -1) el.setAttribute(name, value.split("?")[0]);
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else if (value.indexOf("data:") === 0 && value.length > 1024) el.setAttribute(name, "data:,gstack-stripped");
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}
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}
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const notes = ["shadow DOM and constructed stylesheets not captured"];
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if (crossOrigin.length) notes.push("cross-origin stylesheets not resolved: " + crossOrigin.join(" "));
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if (scripts) notes.push("scripts stripped: " + scripts + "; styles injected at runtime not captured");
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return "<!DOCTYPE html>\n" + root.outerHTML + "\n<!-- gstack-dom-dump: " + notes.join("; ") + " -->\n";
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})()`;
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/** Marker the dump script leaves on the inlined-stylesheet node. */
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export const DOM_DUMP_STYLE_ATTR = 'data-gstack-dom-css';
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/** Prefix of the trailing HTML comment the dump script appends. */
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export const DOM_DUMP_NOTE_PREFIX = 'gstack-dom-dump:';
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