next-csrf/example/.next/cache/next-babel-loader/feb529559983d0786df3554490114df9.json

CSRF mitigation library for Next.js

{"ast":null,"code":"\"use strict\";\n\nvar _slicedToArray = require(\"@babel/runtime/helpers/slicedToArray\");\n\nvar _s = $RefreshSig$();\n\nvar _interopRequireWildcard = require(\"@babel/runtime/helpers/interopRequireWildcard\");\n\nexports.__esModule = true;\nexports[\"default\"] = void 0;\n\nvar _react = _interopRequireWildcard(require(\"react\"));\n\nvar _router = require(\"../next-server/lib/router/router\");\n\nvar _router2 = require(\"./router\");\n\nvar cachedObserver;\nvar listeners = new Map();\nvar IntersectionObserver = true ? window.IntersectionObserver : null;\nvar prefetched = {};\n\nfunction getObserver() {\n  // Return shared instance of IntersectionObserver if already created\n  if (cachedObserver) {\n    return cachedObserver;\n  } // Only create shared IntersectionObserver if supported in browser\n\n\n  if (!IntersectionObserver) {\n    return undefined;\n  }\n\n  return cachedObserver = new IntersectionObserver(function (entries) {\n    entries.forEach(function (entry) {\n      if (!listeners.has(entry.target)) {\n        return;\n      }\n\n      var cb = listeners.get(entry.target);\n\n      if (entry.isIntersecting || entry.intersectionRatio > 0) {\n        cachedObserver.unobserve(entry.target);\n        listeners[\"delete\"](entry.target);\n        cb();\n      }\n    });\n  }, {\n    rootMargin: '200px'\n  });\n}\n\nvar listenToIntersections = function listenToIntersections(el, cb) {\n  var observer = getObserver();\n\n  if (!observer) {\n    return function () {};\n  }\n\n  observer.observe(el);\n  listeners.set(el, cb);\n  return function () {\n    try {\n      observer.unobserve(el);\n    } catch (err) {\n      console.error(err);\n    }\n\n    listeners[\"delete\"](el);\n  };\n};\n\nfunction prefetch(router, href, as, options) {\n  if (false) return;\n  if (!(0, _router.isLocalURL)(href)) return; // Prefetch the JSON page if asked (only in the client)\n  // We need to handle a prefetch error here since we may be\n  // loading with priority which can reject but we don't\n  // want to force navigation since this is only a prefetch\n\n  router.prefetch(href, as, options)[\"catch\"](function (err) {\n    if (true) {\n      // rethrow to show invalid URL errors\n      throw err;\n    }\n  }); // Join on an invalid URI character\n\n  prefetched[href + '%' + as] = true;\n}\n\nfunction isModifiedEvent(event) {\n  var target = event.currentTarget.target;\n  return target && target !== '_self' || event.metaKey || event.ctrlKey || event.shiftKey || event.altKey || // triggers resource download\n  event.nativeEvent && event.nativeEvent.which === 2;\n}\n\nfunction linkClicked(e, router, href, as, replace, shallow, scroll) {\n  var nodeName = e.currentTarget.nodeName;\n\n  if (nodeName === 'A' && (isModifiedEvent(e) || !(0, _router.isLocalURL)(href))) {\n    // ignore click for browser’s default behavior\n    return;\n  }\n\n  e.preventDefault(); //  avoid scroll for urls with anchor refs\n\n  if (scroll == null) {\n    scroll = as.indexOf('#') < 0;\n  } // replace state instead of push if prop is present\n\n\n  router[replace ? 'replace' : 'push'](href, as, {\n    shallow: shallow\n  }).then(function (success) {\n    if (!success) return;\n\n    if (scroll) {\n      window.scrollTo(0, 0);\n      document.body.focus();\n    }\n  });\n}\n\nfunction Link(props) {\n  _s();\n\n  if (true) {\n    var createPropError = function createPropError(args) {\n      return new Error(\"Failed prop type: The prop `\".concat(args.key, \"` expects a \").concat(args.expected, \" in `<Link>`, but got `\").concat(args.actual, \"` instead.\") + (true ? \"\\nOpen your browser's console to view the Component stack trace.\" : ''));\n    }; // TypeScript trick for type-guarding:\n\n\n    var requiredPropsGuard = {\n      href: true\n    };\n    var requiredProps = Object.keys(requiredPropsGuard);\n    requiredProps.forEach(function (key) {\n      if (key === 'href') {\n        if (props[key] == null || typeof props[key] !== 'string' && typeof props[key] !== 'object') {\n          throw createPropError({\n            key: key,\n            expected: '`string` or `object`',\n            actual: props[key] === null ? 'null' : typeof props[key]\n          });\n        }\n      } else {\n        // TypeScript trick for type-guarding:\n        // eslint-disable-next-line @typescript-eslint/no-unused-vars\n        var _ = key;\n      }\n    }); // TypeScript trick for type-guarding:\n\n    var optionalPropsGuard = {\n      as: true,\n      replace: true,\n      scroll: true,\n      shallow: true,\n      passHref: true,\n      prefetch: true\n    };\n    var optionalProps = Object.keys(optionalPropsGuard);\n    optionalProps.forEach(function (key) {\n      if (key === 'as') {\n        if (props[key] && typeof props[key] !== 'string' && typeof props[key] !== 'object') {\n          throw createPropError({\n            key: key,\n            expected: '`string` or `object`',\n            actual: typeof props[key]\n          });\n        }\n      } else if (key === 'replace' || key === 'scroll' || key === 'shallow' || key === 'passHref' || key === 'prefetch') {\n        if (props[key] != null && typeof props[key] !== 'boolean') {\n          throw createPropError({\n            key: key,\n            expected: '`boolean`',\n            actual: typeof props[key]\n          });\n        }\n      } else {\n        // TypeScript trick for type-guarding:\n        // eslint-disable-next-line @typescript-eslint/no-unused-vars\n        var _ = key;\n      }\n    }); // This hook is in a conditional but that is ok because `process.env.NODE_ENV` never changes\n    // eslint-disable-next-line react-hooks/rules-of-hooks\n\n    var hasWarned = _react[\"default\"].useRef(false);\n\n    if (props.prefetch && !hasWarned.current) {\n      hasWarned.current = true;\n      console.warn('Next.js auto-prefetches automatically based on viewport. The prefetch attribute is no longer needed. More: https://err.sh/vercel/next.js/prefetch-true-deprecated');\n    }\n  }\n\n  var p = props.prefetch !== false;\n\n  var _react$default$useSta = _react[\"default\"].useState(),\n      _react$default$useSta2 = _slicedToArray(_react$default$useSta, 2),\n      childElm = _react$default$useSta2[0],\n      setChildElm = _react$default$useSta2[1];\n\n  var router = (0, _router2.useRouter)();\n  var pathname = router && router.pathname || '/';\n\n  var _react$default$useMem = _react[\"default\"].useMemo(function () {\n    var resolvedHref = (0, _router.resolveHref)(pathname, props.href);\n    return {\n      href: resolvedHref,\n      as: props.as ? (0, _router.resolveHref)(pathname, props.as) : resolvedHref\n    };\n  }, [pathname, props.href, props.as]),\n      href = _react$default$useMem.href,\n      as = _react$default$useMem.as;\n\n  _react[\"default\"].useEffect(function () {\n    if (p && IntersectionObserver && childElm && childElm.tagName && (0, _router.isLocalURL)(href)) {\n      // Join on an invalid URI character\n      var isPrefetched = prefetched[href + '%' + as];\n\n      if (!isPrefetched) {\n        return listenToIntersections(childElm, function () {\n          prefetch(router, href, as);\n        });\n      }\n    }\n  }, [p, childElm, href, as, router]);\n\n  var children = props.children,\n      replace = props.replace,\n      shallow = props.shallow,\n      scroll = props.scroll; // Deprecated. Warning shown by propType check. 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'null' : typeof props[key],\n          })\n        }\n      } else {\n        // TypeScript trick for type-guarding:\n        // eslint-disable-next-line @typescript-eslint/no-unused-vars\n        const _: never = key\n      }\n    })\n\n    // TypeScript trick for type-guarding:\n    const optionalPropsGuard: Record<LinkPropsOptional, true> = {\n      as: true,\n      replace: true,\n      scroll: true,\n      shallow: true,\n      passHref: true,\n      prefetch: true,\n    } as const\n    const optionalProps: LinkPropsOptional[] = Object.keys(\n      optionalPropsGuard\n    ) as LinkPropsOptional[]\n    optionalProps.forEach((key: LinkPropsOptional) => {\n      if (key === 'as') {\n        if (\n          props[key] &&\n          typeof props[key] !== 'string' &&\n          typeof props[key] !== 'object'\n        ) {\n          throw createPropError({\n            key,\n            expected: '`string` or `object`',\n            actual: typeof props[key],\n          })\n        }\n      } else if (\n        key === 'replace' ||\n        key === 'scroll' ||\n        key === 'shallow' ||\n        key === 'passHref' ||\n        key === 'prefetch'\n      ) {\n        if (props[key] != null && typeof props[key] !== 'boolean') {\n          throw createPropError({\n            key,\n            expected: '`boolean`',\n            actual: typeof props[key],\n          })\n        }\n      } else {\n        // TypeScript trick for type-guarding:\n        // eslint-disable-next-line @typescript-eslint/no-unused-vars\n        const _: never = key\n      }\n    })\n\n    // This hook is in a conditional but that is ok because `process.env.NODE_ENV` never changes\n    // eslint-disable-next-line react-hooks/rules-of-hooks\n    const hasWarned = React.useRef(false)\n    if (props.prefetch && !hasWarned.current) {\n      hasWarned.current = true\n      console.warn(\n        'Next.js auto-prefetches automatically based on viewport. The prefetch attribute is no longer needed. More: https://err.sh/vercel/next.js/prefetch-true-deprecated'\n      )\n    }\n  }\n  const p = props.prefetch !== false\n\n  const [childElm, setChildElm] = React.useState<Element>()\n\n  const router = useRouter()\n  const pathname = (router && router.pathname) || '/'\n\n  const { href, as } = React.useMemo(() => {\n    const resolvedHref = resolveHref(pathname, props.href)\n    return {\n      href: resolvedHref,\n      as: props.as ? resolveHref(pathname, props.as) : resolvedHref,\n    }\n  }, [pathname, props.href, props.as])\n\n  React.useEffect(() => {\n    if (\n      p &&\n      IntersectionObserver &&\n      childElm &&\n      childElm.tagName &&\n      isLocalURL(href)\n    ) {\n      // Join on an invalid URI character\n      const isPrefetched = prefetched[href + '%' + as]\n      if (!isPrefetched) {\n        return listenToIntersections(childElm, () => {\n          prefetch(router, href, as)\n        })\n      }\n    }\n  }, [p, childElm, href, as, router])\n\n  let { children, replace, shallow, scroll } = props\n  // Deprecated. Warning shown by propType check. If the children provided is a string (<Link>example</Link>) we wrap it in an <a> tag\n  if (typeof children === 'string') {\n    children = <a>{children}</a>\n  }\n\n  // This will return the first child, if multiple are provided it will throw an error\n  const child: any = Children.only(children)\n  const childProps: {\n    onMouseEnter?: React.MouseEventHandler\n    onClick: React.MouseEventHandler\n    href?: string\n    ref?: any\n  } = {\n    ref: (el: any) => {\n      if (el) setChildElm(el)\n\n      if (child && typeof child === 'object' && child.ref) {\n        if (typeof child.ref === 'function') child.ref(el)\n        else if (typeof child.ref === 'object') {\n          child.ref.current = el\n        }\n      }\n    },\n    onClick: (e: React.MouseEvent) => {\n      if (child.props && typeof child.props.onClick === 'function') {\n        child.props.onClick(e)\n      }\n      if (!e.defaultPrevented) {\n        linkClicked(e, router, href, as, replace, shallow, scroll)\n      }\n    },\n  }\n\n  if (p) {\n    childProps.onMouseEnter = (e: React.MouseEvent) => {\n      if (!isLocalURL(href)) return\n      if (child.props && typeof child.props.onMouseEnter === 'function') {\n        child.props.onMouseEnter(e)\n      }\n      prefetch(router, href, as, { priority: true })\n    }\n  }\n\n  // If child is an <a> tag and doesn't have a href attribute, or if the 'passHref' property is\n  // defined, we specify the current 'href', so that repetition is not needed by the user\n  if (props.passHref || (child.type === 'a' && !('href' in child.props))) {\n    childProps.href = addBasePath(as)\n  }\n\n  return React.cloneElement(child, childProps)\n}\n\nexport default Link\n"]},"metadata":{},"sourceType":"script"}