everything-dev/dist/integrity.cjs.map

A consolidated product package for building Module Federation apps with oRPC APIs.

{"version":3,"file":"integrity.cjs","names":["createHash","fetchResponse","Data","fetchBosConfigFromFastKv"],"sources":["../src/integrity.ts"],"sourcesContent":["import { createHash } from \"node:crypto\";\nimport { Data } from \"effect\";\nimport { fetchBosConfigFromFastKv } from \"./fastkv\";\nimport { fetchResponse } from \"./http-client\";\n\nconst DEFAULT_MAX_SRI_RESPONSE_BYTES = 20 * 1024 * 1024;\n\ninterface SriUrlOptions {\n  resolveEntryUrl?: boolean;\n  maxBytes?: number;\n}\n\nexport function computeSriHash(content: string | Buffer): string {\n  return `sha384-${createHash(\"sha384\").update(content).digest(\"base64\")}`;\n}\n\nfunction resolveSriTargetUrl(url: string, options?: SriUrlOptions): string {\n  return options?.resolveEntryUrl === false ? url : resolveEntryUrl(url);\n}\n\nfunction getMaxSriResponseBytes(options?: SriUrlOptions): number {\n  return options?.maxBytes ?? DEFAULT_MAX_SRI_RESPONSE_BYTES;\n}\n\nasync function computeSriHashFromResponse(\n  response: Response,\n  url: string,\n  options?: SriUrlOptions,\n): Promise<string> {\n  const maxBytes = getMaxSriResponseBytes(options);\n  const contentLengthHeader = response.headers.get(\"content-length\");\n\n  if (contentLengthHeader) {\n    const contentLength = Number(contentLengthHeader);\n    if (Number.isFinite(contentLength) && contentLength > maxBytes) {\n      throw new Error(\n        `[SRI] Response for ${url} exceeds max size of ${maxBytes} bytes (${contentLength})`,\n      );\n    }\n  }\n\n  if (!response.body) {\n    throw new Error(`[SRI] Missing response body for ${url}`);\n  }\n\n  const hash = createHash(\"sha384\");\n  const reader = response.body.getReader();\n  let totalBytes = 0;\n\n  while (true) {\n    const { done, value } = await reader.read();\n    if (done) {\n      break;\n    }\n\n    totalBytes += value.byteLength;\n    if (totalBytes > maxBytes) {\n      await reader.cancel();\n      throw new Error(\n        `[SRI] Response for ${url} exceeds max size of ${maxBytes} bytes (${totalBytes})`,\n      );\n    }\n\n    hash.update(value);\n  }\n\n  return `sha384-${hash.digest(\"base64\")}`;\n}\n\nexport async function computeSriHashForUrl(\n  url: string,\n  options?: SriUrlOptions,\n): Promise<string | null> {\n  const attempts = 3;\n  for (let attempt = 1; attempt < attempts; attempt++) {\n    const hash = await computeSriHashOnce(url, options);\n    if (hash) return hash;\n    await new Promise((resolve) => setTimeout(resolve, 1000 * attempt));\n  }\n  return computeSriHashOnce(url, options);\n}\n\nasync function computeSriHashOnce(url: string, options?: SriUrlOptions): Promise<string | null> {\n  try {\n    const entryUrl = resolveSriTargetUrl(url, options);\n\n    const response = await fetchResponse(entryUrl, { timeout: \"30 seconds\" });\n    if (!response.ok) {\n      console.warn(`[SRI] Failed to fetch ${entryUrl}: ${response.status} ${response.statusText}`);\n      return null;\n    }\n    return await computeSriHashFromResponse(response, entryUrl, options);\n  } catch (error) {\n    console.warn(\n      `[SRI] Error computing integrity for ${url}:`,\n      error instanceof Error ? error.message : error,\n    );\n    return null;\n  }\n}\n\nexport function resolveEntryUrl(url: string): string {\n  if (url.endsWith(\"/remoteEntry.js\")) return url;\n  if (url.endsWith(\"/mf-manifest.json\"))\n    return `${url.replace(/\\/mf-manifest\\.json$/, \"\")}/remoteEntry.js`;\n  return `${url.replace(/\\/$/, \"\")}/remoteEntry.js`;\n}\n\nexport class SriVerificationError extends Data.TaggedError(\"SriVerificationError\")<{\n  readonly detail: string;\n}> {\n  constructor(message: string) {\n    super({ detail: message });\n  }\n\n  override get message() {\n    return this.detail;\n  }\n}\n\nexport async function verifySriForUrl(\n  url: string,\n  expectedIntegrity: string,\n  options?: SriUrlOptions,\n): Promise<void> {\n  const entryUrl = resolveSriTargetUrl(url, options);\n\n  const response = await fetchResponse(entryUrl, { timeout: \"30 seconds\" });\n  if (!response.ok) {\n    throw new SriVerificationError(\n      `Failed to fetch ${entryUrl} for verification: ${response.status}`,\n    );\n  }\n\n  const computed = await computeSriHashFromResponse(response, entryUrl, options);\n\n  if (computed !== expectedIntegrity) {\n    throw new Error(\n      `[SRI] Integrity check failed for ${entryUrl}\\n  Expected: ${expectedIntegrity}\\n  Computed: ${computed}`,\n    );\n  }\n}\n\nexport class IntegrityRegistry {\n  private hashes = new Map<string, string>();\n\n  register(url: string, integrity: string): void {\n    this.hashes.set(url, integrity);\n  }\n\n  registerEntry(baseUrl: string, integrity: string): void {\n    this.hashes.set(resolveEntryUrl(baseUrl), integrity);\n  }\n\n  get(url: string): string | undefined {\n    return this.hashes.get(url);\n  }\n\n  has(url: string): boolean {\n    return this.hashes.has(url);\n  }\n\n  entries(): IterableIterator<[string, string]> {\n    return this.hashes.entries();\n  }\n}\n\nfunction extractIntegrityHashes(config: Record<string, unknown>): Map<string, string> {\n  const hashes = new Map<string, string>();\n  const app = config.app as Record<string, Record<string, unknown>> | undefined;\n  const plugins = config.plugins as Record<string, Record<string, unknown>> | undefined;\n\n  for (const entry of [...Object.values(app ?? {}), ...Object.values(plugins ?? {})]) {\n    if (!entry) continue;\n    const slotHash = slotHashOf(entry);\n    if (slotHash) hashes.set(slotHash.key, slotHash.hash);\n  }\n\n  return hashes;\n}\n\n/**\n * The integrity anchor a slot contributes to local↔chain attestation: pinned\n * slots anchor at the pinned manifest document (the pin's SRI), unpinned\n * slots at their fixed-name entry (the direct entry SRI).\n */\nfunction slotHashOf(entry: Record<string, unknown>): { key: string; hash: string } | null {\n  const production = entry.production;\n  if (typeof production !== \"string\") return null;\n  const pin = entry.pin as { manifest?: unknown; integrity?: unknown } | undefined;\n  if (pin && typeof pin.manifest === \"string\" && typeof pin.integrity === \"string\") {\n    return {\n      key: `${production.replace(/\\/$/, \"\")}/${pin.manifest.replace(/^\\//, \"\")}`,\n      hash: pin.integrity,\n    };\n  }\n  if (typeof entry.integrity === \"string\") {\n    return { key: resolveEntryUrl(production), hash: entry.integrity };\n  }\n  return null;\n}\n\nexport async function verifyConfigAgainstChain(\n  localConfig: Record<string, unknown>,\n  bosUrl: string,\n): Promise<{ verified: boolean; mismatches: string[] }> {\n  const mismatches: string[] = [];\n\n  let chainConfig: Record<string, unknown>;\n  try {\n    chainConfig = await fetchBosConfigFromFastKv<Record<string, unknown>>(bosUrl);\n  } catch (error) {\n    console.warn(\n      `[Attestation] Failed to fetch on-chain config: ${error instanceof Error ? error.message : String(error)}`,\n    );\n    return { verified: false, mismatches: [\"chain-fetch-failed\"] };\n  }\n\n  const localHashes = extractIntegrityHashes(localConfig);\n  const chainHashes = extractIntegrityHashes(chainConfig);\n\n  for (const [url, chainHash] of chainHashes) {\n    const localHash = localHashes.get(url);\n    if (localHash && localHash !== chainHash) {\n      mismatches.push(url);\n      console.error(\n        `[Attestation] Integrity mismatch for ${url}\\n  Local: ${localHash}\\n  Chain: ${chainHash}`,\n      );\n    }\n  }\n\n  if (mismatches.length === 0 && localHashes.size > 0) {\n    console.log(\n      `[Attestation] Local config verified against on-chain anchor (${localHashes.size} entries checked)`,\n    );\n  }\n\n  return { verified: mismatches.length === 0, mismatches };\n}\n\nexport interface DeployResultEntry {\n  url: string;\n  integrity?: string;\n  urlField: string;\n  integrityField?: string;\n  /** A plain pipeline-state value (e.g. the built MF container name). */\n  value?: string;\n  valueField?: string;\n  /** Dotted paths deleted after applying this entry — clears stale\n   * pipeline-state fields (e.g. the retired flat `manifest` pointer). */\n  removeFields?: string[];\n}\n\nfunction setNestedPath(obj: Record<string, unknown>, dottedPath: string, value: unknown): void {\n  const keys = dottedPath.split(\".\");\n  let current = obj;\n  for (let i = 0; i < keys.length - 1; i += 1) {\n    const key = keys[i]!;\n    if (current[key] === undefined || current[key] === null || typeof current[key] !== \"object\") {\n      current[key] = {};\n    }\n    current = current[key] as Record<string, unknown>;\n  }\n  current[keys[keys.length - 1]!] = value;\n}\n\nfunction deleteNestedPath(obj: Record<string, unknown>, dottedPath: string): void {\n  const keys = dottedPath.split(\".\");\n  let current = obj;\n  for (let i = 0; i < keys.length - 1; i += 1) {\n    const key = keys[i]!;\n    if (current[key] === undefined || typeof current[key] !== \"object\") return;\n    current = current[key] as Record<string, unknown>;\n  }\n  delete current[keys[keys.length - 1]!];\n}\n\nexport function applyDeployResults(\n  config: Record<string, unknown>,\n  results: DeployResultEntry[],\n): Record<string, unknown> {\n  const merged = structuredClone(config);\n  for (const result of results) {\n    setNestedPath(merged, result.urlField, result.url);\n    if (result.integrityField) {\n      if (result.integrity) {\n        setNestedPath(merged, result.integrityField, result.integrity);\n      } else {\n        deleteNestedPath(merged, result.integrityField);\n      }\n    }\n    if (result.valueField && result.value !== undefined && result.value !== null) {\n      setNestedPath(merged, result.valueField, result.value);\n    }\n    for (const field of result.removeFields ?? 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