xiaoju
3709fae5e1
CF Workers cannot fetch() other workers on the same .workers.dev zone.
This caused all /run/{name} routes to return Cloudflare's HTML 404
instead of proxying to the sub-worker.
Fix: replace inline fetch() proxy with a redirect-based approach:
- Default (browser/curl): 302 redirect to sub-worker URL
- Accept: application/json: return JSON with {url, capability, cold_start}
LRU bookkeeping (page-in, access count) still happens in Sigil before
the redirect, so cold capabilities are warmed up transparently.
New backend method: resolveInvoke() — same LRU/page-in logic as invoke()
but returns route info instead of executing the subrequest.
Fixes: https://sigil.shazhou.workers.dev/run/* returning CF 404
Reported-by: 小墨 🖊️
80 lines
2.5 KiB
TypeScript
80 lines
2.5 KiB
TypeScript
export interface SchemaProperty {
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type: string
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description?: string
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default?: any
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}
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export interface InputSchema {
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type?: 'object'
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properties: Record<string, SchemaProperty>
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required?: string[]
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}
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/**
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* 从 schema + execute body 生成完整 Worker 代码
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*/
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export function generateWorkerCode(schema: InputSchema, executeBody: string): string {
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const required = schema.required || []
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// 生成参数解析 + 类型转换
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const parseLines: string[] = []
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for (const [name, prop] of Object.entries(schema.properties || {})) {
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if (prop.type === 'number') {
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parseLines.push(` if (raw.${name} !== undefined) input.${name} = Number(raw.${name});`)
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} else if (prop.type === 'boolean') {
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parseLines.push(` if (raw.${name} !== undefined) input.${name} = raw.${name} === 'true' || raw.${name} === true;`)
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} else {
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parseLines.push(` if (raw.${name} !== undefined) input.${name} = raw.${name};`)
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}
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// 默认值
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if (prop.default !== undefined) {
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parseLines.push(` if (input.${name} === undefined) input.${name} = ${JSON.stringify(prop.default)};`)
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}
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}
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// 生成 required 校验
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const requiredChecks = required.map(name =>
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` if (input.${name} === undefined) return new Response(JSON.stringify({error: "Missing required parameter: ${name}"}), {status: 400, headers: {"Content-Type": "application/json"}});`
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).join('\n')
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return `export default {
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async fetch(request) {
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try {
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const url = new URL(request.url);
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let raw = {};
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// Parse input from query params or JSON body
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if (request.method === 'POST' || request.method === 'PUT') {
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try { raw = await request.json(); } catch(e) { raw = {}; }
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}
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// Query params override/merge
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for (const [k, v] of url.searchParams.entries()) {
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raw[k] = v;
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}
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const input = {};
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${parseLines.join('\n')}
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// Required field validation
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${requiredChecks}
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// Execute user function
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const __result = await (async (input) => {
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${executeBody}
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})(input);
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// Ensure string output
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const output = typeof __result === 'string' ? __result : JSON.stringify(__result);
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return new Response(output, {
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headers: { "Content-Type": "application/json" }
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});
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} catch (e) {
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return new Response(JSON.stringify({ error: e.message || "Internal error" }), {
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status: 500,
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headers: { "Content-Type": "application/json" }
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});
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}
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}
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};`
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}
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