Initial boiler plate project
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node_modules/next/dist/esm/server/app-render/encryption.js
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72
node_modules/next/dist/esm/server/app-render/encryption.js
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/* eslint-disable import/no-extraneous-dependencies */ import "server-only";
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/* eslint-disable import/no-extraneous-dependencies */ import { renderToReadableStream, decodeReply } from "react-server-dom-webpack/server.edge";
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/* eslint-disable import/no-extraneous-dependencies */ import { createFromReadableStream, encodeReply } from "react-server-dom-webpack/client.edge";
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import { streamToString } from "../stream-utils/node-web-streams-helper";
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import { arrayBufferToString, decrypt, encrypt, getActionEncryptionKey, getClientReferenceManifestSingleton, getServerModuleMap, stringToUint8Array } from "./encryption-utils";
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const textEncoder = new TextEncoder();
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const textDecoder = new TextDecoder();
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async function decodeActionBoundArg(actionId, arg) {
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const key = await getActionEncryptionKey();
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if (typeof key === "undefined") {
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throw new Error(`Missing encryption key for Server Action. This is a bug in Next.js`);
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}
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// Get the iv (16 bytes) and the payload from the arg.
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const originalPayload = atob(arg);
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const ivValue = originalPayload.slice(0, 16);
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const payload = originalPayload.slice(16);
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const decrypted = textDecoder.decode(await decrypt(key, stringToUint8Array(ivValue), stringToUint8Array(payload)));
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if (!decrypted.startsWith(actionId)) {
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throw new Error("Invalid Server Action payload: failed to decrypt.");
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}
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return decrypted.slice(actionId.length);
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}
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async function encodeActionBoundArg(actionId, arg) {
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const key = await getActionEncryptionKey();
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if (key === undefined) {
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throw new Error(`Missing encryption key for Server Action. This is a bug in Next.js`);
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}
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// Get 16 random bytes as iv.
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const randomBytes = new Uint8Array(16);
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crypto.getRandomValues(randomBytes);
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const ivValue = arrayBufferToString(randomBytes.buffer);
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const encrypted = await encrypt(key, randomBytes, textEncoder.encode(actionId + arg));
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return btoa(ivValue + arrayBufferToString(encrypted));
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}
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// Encrypts the action's bound args into a string.
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export async function encryptActionBoundArgs(actionId, args) {
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const clientReferenceManifestSingleton = getClientReferenceManifestSingleton();
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// Using Flight to serialize the args into a string.
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const serialized = await streamToString(renderToReadableStream(args, clientReferenceManifestSingleton.clientModules));
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// Encrypt the serialized string with the action id as the salt.
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// Add a prefix to later ensure that the payload is correctly decrypted, similar
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// to a checksum.
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const encrypted = await encodeActionBoundArg(actionId, serialized);
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return encrypted;
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}
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// Decrypts the action's bound args from the encrypted string.
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export async function decryptActionBoundArgs(actionId, encrypted) {
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// Decrypt the serialized string with the action id as the salt.
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const decryped = await decodeActionBoundArg(actionId, await encrypted);
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// Using Flight to deserialize the args from the string.
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const deserialized = await createFromReadableStream(new ReadableStream({
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start (controller) {
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controller.enqueue(textEncoder.encode(decryped));
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controller.close();
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}
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}), {
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ssrManifest: {
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// TODO: We can't use the client reference manifest to resolve the modules
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// on the server side - instead they need to be recovered as the module
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// references (proxies) again.
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// For now, we'll just use an empty module map.
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moduleLoading: {},
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moduleMap: {}
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}
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});
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// This extra step ensures that the server references are recovered.
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const serverModuleMap = getServerModuleMap();
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const transformed = await decodeReply(await encodeReply(deserialized), serverModuleMap);
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return transformed;
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}
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//# sourceMappingURL=encryption.js.map
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