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Connect durable canvas runtime to canonical Foundry protocol

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Codex Bot
2026-11-07 22:53:00 +08:00
parent 10374c3696
commit 8a19909716
16 changed files with 406 additions and 19 deletions
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src/app/api/foundry/[...path]/route.ts
+8 -6
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@@ -4,7 +4,7 @@ import { NextRequest, NextResponse } from "next/server";
const allowed =
/^(profile|auth\/(login|register|verify-email|exchange|me|logout)|workspaces(?:\/[a-zA-Z0-9_-]+(?:\/(?:materials(?:\/[a-zA-Z0-9_-]+(?:\/canvas)?)?|search))?)?)$/;
const canvasRoute = /^workspaces\/[a-zA-Z0-9_-]+\/materials\/[a-zA-Z0-9_-]+\/canvas(?:\/(?:connections|capabilities|subgraphs(?:\/(?:migrate|[a-zA-Z0-9_-]+\/(?:members|dissolve)))?|transactions\/[a-zA-Z0-9_-]+\/undo|ai\/(?:models|runs(?:\/[a-zA-Z0-9_-]+(?:\/(?:cancel|apply))?)?)))?$/;
const canvasRoute = /^workspaces\/[a-zA-Z0-9_-]+\/materials\/[a-zA-Z0-9_-]+\/canvas(?:\/(?:model(?:\/(?:migrate|operations(?:\/[a-zA-Z0-9_-]+)?))?|operations(?:\/[a-zA-Z0-9_-]+)?|connections|capabilities|subgraphs(?:\/(?:migrate|[a-zA-Z0-9_-]+\/(?:members|dissolve)))?|transactions\/[a-zA-Z0-9_-]+\/undo|ai\/(?:models|runs(?:\/[a-zA-Z0-9_-]+(?:\/(?:cancel|apply))?)?)))?$/;
const assetRoute = /^workspaces\/[a-zA-Z0-9_-]+\/assets(?:\/[a-zA-Z0-9_-]+)?$/;
const bodyLimit = 1024 * 1024;
@@ -55,10 +55,11 @@ async function handler(
if (!allowed.test(path) && !canvasRoute.test(path) && !assetRoute.test(path)) return json({ error: "not_found" }, 404);
const asset = assetRoute.test(path);
const canvas = canvasRoute.test(path);
const canonical = canvas && /\/canvas\/model(?:\/|$)/.test(path);
let requestBody: unknown;
if (req.method !== "GET") {
try {
requestBody = await readBody(req, asset ? 21 * 1024 * 1024 : path.endsWith("/canvas") ? 5 * 1024 * 1024 : bodyLimit, asset);
requestBody = await readBody(req, asset ? 21 * 1024 * 1024 : canonical || path.endsWith("/canvas") || path.endsWith("/canvas/operations") ? 5 * 1024 * 1024 : bodyLimit, asset || canonical);
} catch (error) {
const tooLarge = error instanceof Error && error.message === "body_too_large";
return json({ error: tooLarge ? "body_too_large" : "invalid_json" }, tooLarge ? 413 : 400);
@@ -71,7 +72,7 @@ async function handler(
if (canvas) headers.Accept = "application/vnd.foundry.canvas+json;version=2";
const session = req.cookies.get("foundry_session")?.value;
if (session) headers.Authorization = "Bearer " + session;
for (const h of ["x-foundry-code", "x-foundry-verifier", "if-match", "idempotency-key"]) {
for (const h of ["x-foundry-code", "x-foundry-verifier", "if-match", "idempotency-key", "x-expected-account"]) {
const value = req.headers.get(h);
if (value !== null) headers[h] = value;
}
@@ -81,11 +82,12 @@ async function handler(
if (values.length === 1 && values[0].length < 300) query.set(key, values[0]);
}
const encodingStarted = performance.now();
const outboundBody = req.method === "GET" ? undefined : asset ? requestBody as BodyInit : JSON.stringify(requestBody || {});
// Frozen canonical requests cross the proxy byte-for-byte; do not rebuild their JSON.
const outboundBody = req.method === "GET" ? undefined : asset || canonical ? requestBody as BodyInit : JSON.stringify(requestBody || {});
const encodeMs = performance.now() - encodingStarted;
const started = performance.now();
try {
const snapshotRead = canvas && path.endsWith("/canvas") && req.method === "GET";
const snapshotRead = canvas && (path.endsWith("/canvas") || canonical) && req.method === "GET";
const streamedRead = snapshotRead || asset && req.method === "GET";
const snapshotWrite = canvas && path.endsWith("/canvas") && req.method === "PATCH";
const traceId = streamedRead || snapshotWrite ? crypto.randomUUID() : "";
@@ -128,7 +130,7 @@ async function handler(
const headersReceived = performance.now();
// Snapshots contain no login exchange payload. Forward them without buffering
// and parsing/re-encoding multi-megabyte inline image JSON in the proxy.
if (canvas && path.endsWith("/canvas") && req.method === "GET" && upstream.ok) {
if (canonical || canvas && path.endsWith("/canvas") && req.method === "GET" && upstream.ok) {
responseHeaders.set("Content-Type", "application/json; charset=utf-8");
responseHeaders.set("Server-Timing", `upstream;dur=${(headersReceived - started).toFixed(1)}, proxy_headers;dur=${(performance.now() - headersReceived).toFixed(1)}`);
return new NextResponse(upstream.body, { status: upstream.status, headers: responseHeaders });