uncle6me-web
95a1462b65
richblack 拍板：service binding（前一 commit）靜態、加/改要重 deploy cypher，廢。
改用 global_fetch_strictly_public compatibility flag——cypher wrangler.toml 加一行，
讓 fetch() 走公網前門，self-hosted 的 same-zone fetch（cypher 與 auth 同在
{sub}.workers.dev zone）也能通。
- wrangler.toml：compatibility_flags 加 global_fetch_strictly_public（移除 SVC_AUTH_*）
- auth-dispatcher.ts / types.ts：還原到 service binding 之前（單純 fetch workers.dev）
- 安全（官方 docs）：唯一副作用 self-loop 僅在 fetch 自己 hostname；cypher 不 self-loop
- 官方/self-host 共用同一份 toml：官方本就跨 zone 行為不變，self-host 被修好
- 規範還原：rule 02/03/CLAUDE.md/pre-bash-guard 的 service binding 禁令維持原狀
SDD: credential-primitives-wasm Phase 7（A→廢→B）。tsc exit 0。
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
108 lines
3.7 KiB
TypeScript
108 lines
3.7 KiB
TypeScript
/**
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* Auth Dispatcher
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*
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* 對需要認證的零件,在執行前 HTTP POST 到對應的 auth primitive Worker,
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* 取回 auth_headers / auth_query / auth_body 合併進節點 context。
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*
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* 嚴格邊界(rule 02 §2.2):
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* - 本檔**不做**任何 credential 解密 / template 展開 / JWT 簽章
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* - 那些全部在 auth primitive WASM 零件內執行(透過 host function `crypto_decrypt` 等)
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* - 本檔只做「查 recipe 決定走哪個 primitive Worker」+「HTTP fetch 取回注入結果」
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*
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* 目前階段接上 `auth_static_key` + `auth_service_account` + `auth_oauth2`,
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* Phase 4 剩 `auth_mtls`（mTLS handshake 在 Worker runtime 層）。
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*
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* 執行時機:graph-executor 在節點 runner 執行前呼叫,取回的 ctx 會:
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* 1. 先試本 dispatcher(命中才 return enriched ctx)
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* 2. 沒命中 fallback 到 `injectCredentials`(Phase 1.9 才刪除)
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*/
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import type { Bindings } from '../types';
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import { resolveAuthRecipe, resolveRecipe } from '../routes/recipes';
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import { wasmWorkerUrl } from '../lib/component-loader';
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/** 對應 Phase 1-4 會部署的 auth primitive Worker */
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const SUPPORTED_PRIMITIVES = new Set(['static_key', 'service_account', 'oauth2']);
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/** auth primitive 本身的 componentId(避免自引用) */
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const AUTH_PRIMITIVE_IDS = new Set([
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'auth_static_key',
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'auth_service_account',
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'auth_oauth2',
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'auth_mtls',
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]);
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/**
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* 試著對零件做 auth 注入。
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* - 命中(有對應 auth recipe 且 primitive 已支援)→ 回傳注入後的 ctx
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* - 未命中 → 回傳 null(呼叫端繼續跑舊路徑)
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*/
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export async function tryAuthDispatch(
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componentId: string,
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input: Record<string, unknown>,
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env: Bindings,
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apiKey: string,
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): Promise<Record<string, unknown> | null> {
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if (AUTH_PRIMITIVE_IDS.has(componentId)) {
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// auth primitive 本身不需要再做 auth
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return null;
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}
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// 決定 auth service name：
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// 1. 若 API recipe 宣告了 auth_service（例 recipe:kbdb_get → "kbdb"）→ 用它，
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// 讓多個 recipe 共用同一把 auth_recipe（不必每個 action 複製 auth recipe）。
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// 2. 否則 fallback 到把 componentId 當 service name（向後相容舊行為）。
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let service = componentId;
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const apiRecipe = await resolveRecipe(componentId, env.RECIPES);
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if (apiRecipe?.auth_service) {
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service = apiRecipe.auth_service;
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}
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const recipe = await resolveAuthRecipe(service, env.RECIPES);
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if (!recipe) return null;
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if (!SUPPORTED_PRIMITIVES.has(recipe.primitive)) return null;
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// 走新路徑:HTTP POST 到對應 auth primitive Worker
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// 走 workers.dev 避開同 zone 死鎖（P0 #9）
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const primitiveUrl = wasmWorkerUrl(`auth_${recipe.primitive}`, env.WORKER_SUBDOMAIN);
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const res = await fetch(primitiveUrl, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({
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action: 'authenticate',
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api_key: apiKey,
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service,
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}),
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});
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if (!res.ok) {
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const text = await res.text().catch(() => '');
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throw new Error(
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`auth primitive "${recipe.primitive}" 回傳 ${res.status}: ${text.slice(0, 200)}`,
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);
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}
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const result = await res.json().catch(() => null) as {
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success?: boolean;
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error?: string;
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auth_headers?: Record<string, string>;
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auth_query?: Record<string, string>;
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auth_body?: Record<string, string>;
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auth_path?: Record<string, string>;
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} | null;
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if (!result || result.success === false) {
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throw new Error(
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`auth primitive 失敗: ${result?.error ?? '未知錯誤'}`,
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);
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}
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return {
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...input,
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_auth_headers: result.auth_headers ?? {},
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_auth_query: result.auth_query ?? {},
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_auth_body: result.auth_body ?? {},
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_auth_path: result.auth_path ?? {},
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};
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}
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