{"version":3,"file":"pages-page-data.js","names":[],"sources":["../../src/server/pages-page-data.ts"],"sourcesContent":["import type { ReactNode } from \"react\";\nimport type { Route } from \"../routing/pages-router.js\";\nimport type { CachedPagesValue, CacheControlMetadata } from \"vinext/shims/cache\";\nimport { buildCachedRevalidateCacheControl } from \"./cache-control.js\";\nimport { VINEXT_CACHE_HEADER } from \"./headers.js\";\nimport { buildPagesCacheValue, type ISRCacheEntry } from \"./isr-cache.js\";\nimport {\n  buildPagesNextDataScript,\n  type PagesGsspResponse,\n  type PagesI18nRenderContext,\n} from \"./pages-page-response.js\";\n\ntype PagesRedirectResult = {\n  destination: string;\n  permanent?: boolean;\n  statusCode?: number;\n};\n\ntype PagesStaticPathsEntry = {\n  params: Record<string, unknown>;\n};\n\ntype PagesStaticPathsResult = {\n  fallback?: boolean | \"blocking\";\n  paths?: PagesStaticPathsEntry[];\n};\n\ntype PagesPagePropsResult = {\n  props?: Record<string, unknown>;\n  redirect?: PagesRedirectResult;\n  notFound?: boolean;\n  revalidate?: number;\n};\n\nexport type PagesMutableGsspResponse = {\n  headersSent: boolean;\n} & PagesGsspResponse;\n\nexport type PagesGsspContextResponse = {\n  req: unknown;\n  res: PagesMutableGsspResponse;\n  responsePromise: Promise<Response>;\n};\n\nexport type PagesPageModule = {\n  default?: unknown;\n  getStaticPaths?: (context: {\n    locales: string[];\n    defaultLocale: string;\n  }) => Promise<PagesStaticPathsResult> | PagesStaticPathsResult;\n  getServerSideProps?: (context: {\n    params: Record<string, unknown>;\n    req: unknown;\n    res: PagesMutableGsspResponse;\n    query: Record<string, unknown>;\n    resolvedUrl: string;\n    locale?: string;\n    locales?: string[];\n    defaultLocale?: string;\n  }) => Promise<PagesPagePropsResult> | PagesPagePropsResult;\n  getStaticProps?: (context: {\n    params: Record<string, unknown>;\n    locale?: string;\n    locales?: string[];\n    defaultLocale?: string;\n  }) => Promise<PagesPagePropsResult> | PagesPagePropsResult;\n};\n\ntype RenderPagesIsrHtmlOptions = {\n  buildId: string | null;\n  cachedHtml: string;\n  createPageElement: (pageProps: Record<string, unknown>) => ReactNode;\n  i18n: PagesI18nRenderContext;\n  pageProps: Record<string, unknown>;\n  params: Record<string, unknown>;\n  renderIsrPassToStringAsync: (element: ReactNode) => Promise<string>;\n  routePattern: string;\n  safeJsonStringify: (value: unknown) => string;\n};\n\nexport type ResolvePagesPageDataOptions = {\n  applyRequestContexts: () => void;\n  buildId: string | null;\n  createGsspReqRes: () => PagesGsspContextResponse;\n  createPageElement: (pageProps: Record<string, unknown>) => ReactNode;\n  fontLinkHeader: string;\n  i18n: PagesI18nRenderContext;\n  isrCacheKey: (router: string, pathname: string) => string;\n  isrGet: (key: string) => Promise<ISRCacheEntry | null>;\n  isrSet: (\n    key: string,\n    data: CachedPagesValue,\n    revalidateSeconds: number,\n    tags?: string[],\n    expireSeconds?: number,\n  ) => Promise<void>;\n  expireSeconds?: number;\n  pageModule: PagesPageModule;\n  params: Record<string, unknown>;\n  query: Record<string, unknown>;\n  route: Pick<Route, \"isDynamic\">;\n  routePattern: string;\n  routeUrl: string;\n  runInFreshUnifiedContext: <T>(callback: () => Promise<T>) => Promise<T>;\n  safeJsonStringify: (value: unknown) => string;\n  sanitizeDestination: (destination: string) => string;\n  scriptNonce?: string;\n  triggerBackgroundRegeneration: (\n    key: string,\n    renderFn: () => Promise<void>,\n    errorContext?: { routerKind: \"Pages Router\"; routePath: string; routeType: \"render\" },\n  ) => void;\n  renderIsrPassToStringAsync: (element: ReactNode) => Promise<string>;\n};\n\ntype ResolvePagesPageDataRenderResult = {\n  kind: \"render\";\n  gsspRes: PagesGsspResponse | null;\n  isrRevalidateSeconds: number | null;\n  pageProps: Record<string, unknown>;\n};\n\ntype ResolvePagesPageDataResponseResult = {\n  kind: \"response\";\n  response: Response;\n};\n\ntype ResolvePagesPageDataResult =\n  | ResolvePagesPageDataRenderResult\n  | ResolvePagesPageDataResponseResult;\n\nfunction buildPagesNotFoundResponse(): Response {\n  return new Response(\"<!DOCTYPE html><html><body><h1>404 - Page not found</h1></body></html>\", {\n    status: 404,\n    headers: { \"Content-Type\": \"text/html\" },\n  });\n}\n\nfunction buildPagesDataNotFoundResponse(): Response {\n  return new Response(\"404\", { status: 404 });\n}\n\nfunction resolvePagesRedirectStatus(redirect: PagesRedirectResult): number {\n  return redirect.statusCode != null ? redirect.statusCode : redirect.permanent ? 308 : 307;\n}\n\nfunction matchesPagesStaticPath(\n  pathEntry: PagesStaticPathsEntry,\n  params: Record<string, unknown>,\n): boolean {\n  return Object.entries(pathEntry.params).every(([key, value]) => {\n    const actual = params[key];\n    if (Array.isArray(value)) {\n      return Array.isArray(actual) && value.join(\"/\") === actual.join(\"/\");\n    }\n    return String(value) === String(actual);\n  });\n}\n\nfunction buildPagesCacheResponse(\n  html: string,\n  cacheState: \"HIT\" | \"STALE\",\n  fontLinkHeader: string,\n  revalidateSeconds?: number,\n  expireSeconds?: number,\n  cacheControl?: CacheControlMetadata,\n): Response {\n  // Legacy cache entries written before cacheControl metadata existed can still\n  // hit this path without a persisted revalidate value; keep the historic\n  // 60-second fallback for that migration window.\n  const effectiveRevalidateSeconds = cacheControl?.revalidate ?? revalidateSeconds ?? 60;\n  const effectiveExpireSeconds =\n    cacheControl === undefined ? undefined : (cacheControl.expire ?? expireSeconds);\n  const headers: Record<string, string> = {\n    \"Content-Type\": \"text/html\",\n    [VINEXT_CACHE_HEADER]: cacheState,\n    \"Cache-Control\": buildCachedRevalidateCacheControl(\n      cacheState,\n      effectiveRevalidateSeconds,\n      effectiveExpireSeconds,\n    ),\n  };\n\n  if (fontLinkHeader) {\n    headers.Link = fontLinkHeader;\n  }\n\n  return new Response(html, {\n    status: 200,\n    headers,\n  });\n}\n\nfunction rewritePagesCachedHtml(\n  cachedHtml: string,\n  freshBody: string,\n  nextDataScript: string,\n): string {\n  const bodyMarker = '<div id=\"__next\">';\n  const bodyStart = cachedHtml.indexOf(bodyMarker);\n  const contentStart = bodyStart >= 0 ? bodyStart + bodyMarker.length : -1;\n  // This intentionally looks for the bare inline __NEXT_DATA__ marker.\n  // Pages responses with scriptNonce are excluded from ISR writes, so cached\n  // HTML should never contain nonce-prefixed __NEXT_DATA__ scripts here.\n  const nextDataMarker = \"<script>window.__NEXT_DATA__\";\n  const nextDataStart = cachedHtml.indexOf(nextDataMarker);\n\n  if (contentStart >= 0 && nextDataStart >= 0) {\n    const region = cachedHtml.slice(contentStart, nextDataStart);\n    const lastCloseDiv = region.lastIndexOf(\"</div>\");\n    const gap = lastCloseDiv >= 0 ? region.slice(lastCloseDiv + 6) : \"\";\n    const nextDataEnd = cachedHtml.indexOf(\"</script>\", nextDataStart) + 9;\n    const tail = cachedHtml.slice(nextDataEnd);\n\n    return cachedHtml.slice(0, contentStart) + freshBody + \"</div>\" + gap + nextDataScript + tail;\n  }\n\n  return (\n    '<!DOCTYPE html>\\n<html>\\n<head>\\n</head>\\n<body>\\n  <div id=\"__next\">' +\n    freshBody +\n    \"</div>\\n  \" +\n    nextDataScript +\n    \"\\n</body>\\n</html>\"\n  );\n}\n\nexport async function renderPagesIsrHtml(options: RenderPagesIsrHtmlOptions): Promise<string> {\n  const freshBody = await options.renderIsrPassToStringAsync(\n    options.createPageElement(options.pageProps),\n  );\n  const nextDataScript = buildPagesNextDataScript({\n    buildId: options.buildId,\n    i18n: options.i18n,\n    pageProps: options.pageProps,\n    params: options.params,\n    routePattern: options.routePattern,\n    safeJsonStringify: options.safeJsonStringify,\n  });\n\n  return rewritePagesCachedHtml(options.cachedHtml, freshBody, nextDataScript);\n}\n\nexport async function resolvePagesPageData(\n  options: ResolvePagesPageDataOptions,\n): Promise<ResolvePagesPageDataResult> {\n  if (typeof options.pageModule.getStaticPaths === \"function\" && options.route.isDynamic) {\n    const pathsResult = await options.pageModule.getStaticPaths({\n      locales: options.i18n.locales ?? [],\n      defaultLocale: options.i18n.defaultLocale ?? \"\",\n    });\n    const fallback = pathsResult?.fallback ?? false;\n\n    if (fallback === false) {\n      const paths = pathsResult?.paths ?? [];\n      const isValidPath = paths.some((pathEntry) =>\n        matchesPagesStaticPath(pathEntry, options.params),\n      );\n\n      if (!isValidPath) {\n        return {\n          kind: \"response\",\n          response: buildPagesNotFoundResponse(),\n        };\n      }\n    }\n  }\n\n  let pageProps: Record<string, unknown> = {};\n  let gsspRes: PagesMutableGsspResponse | null = null;\n\n  if (typeof options.pageModule.getServerSideProps === \"function\") {\n    const { req, res, responsePromise } = options.createGsspReqRes();\n    const result = await options.pageModule.getServerSideProps({\n      params: options.params,\n      req,\n      res,\n      query: options.query,\n      resolvedUrl: options.routeUrl,\n      locale: options.i18n.locale,\n      locales: options.i18n.locales,\n      defaultLocale: options.i18n.defaultLocale,\n    });\n\n    if (res.headersSent) {\n      return {\n        kind: \"response\",\n        response: await responsePromise,\n      };\n    }\n\n    if (result?.props) {\n      pageProps = result.props;\n    }\n\n    if (result?.redirect) {\n      return {\n        kind: \"response\",\n        response: new Response(null, {\n          status: resolvePagesRedirectStatus(result.redirect),\n          headers: { Location: options.sanitizeDestination(result.redirect.destination) },\n        }),\n      };\n    }\n\n    if (result?.notFound) {\n      return {\n        kind: \"response\",\n        response: buildPagesDataNotFoundResponse(),\n      };\n    }\n\n    gsspRes = res;\n  }\n\n  let isrRevalidateSeconds: number | null = null;\n\n  if (typeof options.pageModule.getStaticProps === \"function\") {\n    const pathname = options.routeUrl.split(\"?\")[0];\n    const cacheKey = options.isrCacheKey(\"pages\", pathname);\n    const cached = await options.isrGet(cacheKey);\n    const cachedValue = cached?.value.value;\n\n    if (cachedValue?.kind === \"PAGES\" && cached && !cached.isStale && !options.scriptNonce) {\n      return {\n        kind: \"response\",\n        response: buildPagesCacheResponse(\n          cachedValue.html,\n          \"HIT\",\n          options.fontLinkHeader,\n          undefined,\n          options.expireSeconds,\n          cached.value.cacheControl,\n        ),\n      };\n    }\n\n    if (cachedValue?.kind === \"PAGES\" && cached && cached.isStale && !options.scriptNonce) {\n      options.triggerBackgroundRegeneration(\n        cacheKey,\n        async function () {\n          return options.runInFreshUnifiedContext(async () => {\n            const freshResult = await options.pageModule.getStaticProps?.({\n              params: options.params,\n              locale: options.i18n.locale,\n              locales: options.i18n.locales,\n              defaultLocale: options.i18n.defaultLocale,\n            });\n\n            if (\n              freshResult?.props &&\n              typeof freshResult.revalidate === \"number\" &&\n              freshResult.revalidate > 0\n            ) {\n              options.applyRequestContexts();\n              const freshHtml = await renderPagesIsrHtml({\n                buildId: options.buildId,\n                cachedHtml: cachedValue.html,\n                createPageElement: options.createPageElement,\n                i18n: options.i18n,\n                pageProps: freshResult.props,\n                params: options.params,\n                renderIsrPassToStringAsync: options.renderIsrPassToStringAsync,\n                routePattern: options.routePattern,\n                safeJsonStringify: options.safeJsonStringify,\n              });\n\n              await options.isrSet(\n                cacheKey,\n                buildPagesCacheValue(freshHtml, freshResult.props),\n                freshResult.revalidate,\n                undefined,\n                options.expireSeconds,\n              );\n            }\n          });\n        },\n        {\n          routerKind: \"Pages Router\",\n          routePath: options.routePattern,\n          routeType: \"render\",\n        },\n      );\n\n      return {\n        kind: \"response\",\n        response: buildPagesCacheResponse(\n          cachedValue.html,\n          \"STALE\",\n          options.fontLinkHeader,\n          undefined,\n          options.expireSeconds,\n          cached.value.cacheControl,\n        ),\n      };\n    }\n\n    const result = await options.pageModule.getStaticProps({\n      params: options.params,\n      locale: options.i18n.locale,\n      locales: options.i18n.locales,\n      defaultLocale: options.i18n.defaultLocale,\n    });\n\n    if (result?.props) {\n      pageProps = result.props;\n    }\n\n    if (result?.redirect) {\n      return {\n        kind: \"response\",\n        response: new Response(null, {\n          status: resolvePagesRedirectStatus(result.redirect),\n          headers: { Location: options.sanitizeDestination(result.redirect.destination) },\n        }),\n      };\n    }\n\n    if (result?.notFound) {\n      return {\n        kind: \"response\",\n        response: buildPagesDataNotFoundResponse(),\n      };\n    }\n\n    if (typeof result?.revalidate === \"number\" && result.revalidate > 0) {\n      isrRevalidateSeconds = result.revalidate;\n    }\n  }\n\n  return {\n    kind: \"render\",\n    gsspRes,\n    isrRevalidateSeconds,\n    pageProps,\n  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