Variable workerSodiumScriptConst
workerSodiumScript: "let sodium;\n\nself.sodium = {\n onload: (sod) => {\n sodium = sod\n postMessage({ event: \"ready\" })\n }\n};\n\nimportScripts('https://cdn.jsdelivr.net/gh/jedisct1/libsodium.js@master/dist/browsers/sodium.js');\nimportScripts('https://cdnjs.cloudflare.com/ajax/libs/spark-md5/3.0.0/spark-md5.min.js');\n\nfunction* chunks(arr, n) {\n for (let i = 0; i < arr.length; i += n) {\n yield arr.slice(i, i + n);\n }\n}\n\nfunction assert(c, message) {\n if (!c) {\n throw new Error(message);\n }\n}\n\nfunction encrypt(key) {\n let destroyed = false;\n const {\n state,\n header\n } = sodium.crypto_secretstream_xchacha20poly1305_init_push(key);\n\n const encrypt = (tag, plaintext) => {\n assert(destroyed === false, \"state already destroyed\");\n\n return sodium.crypto_secretstream_xchacha20poly1305_push(\n state,\n plaintext,\n null,\n tag\n );\n };\n\n function destroy() {\n assert(destroyed === false, \"state already destroyed\");\n destroyed = true;\n }\n\n return {\n encrypt,\n destroy,\n header\n };\n}\n\nfunction decrypt(header, key) {\n assert(\n header.byteLength >=\n sodium.crypto_secretstream_xchacha20poly1305_HEADERBYTES,\n \"header must be at least HEADERBYTES (\" + sodium.crypto_secretstream_xchacha20poly1305_HEADERBYTES + \") long\"\n );\n assert(\n key.byteLength >= sodium.crypto_secretstream_xchacha20poly1305_KEYBYTES,\n \"key must be at least KEYBYTES (\" + sodium.crypto_secretstream_xchacha20poly1305_KEYBYTES + \") long\"\n );\n\n let destroyed = false;\n const state = sodium.crypto_secretstream_xchacha20poly1305_init_pull(\n header,\n key\n );\n\n const decrypt = ciphertext => {\n assert(destroyed === false, \"state already destroyed\");\n\n return sodium.crypto_secretstream_xchacha20poly1305_pull(state, ciphertext);\n };\n\n function destroy() {\n assert(destroyed === false, \"state already destroyed\");\n destroyed = true;\n }\n\n return {\n decrypt,\n destroy\n };\n}\n\nconst CHUNK_SIZE = 8192;\n\nasync function encryptSecretstream(key, data, progress) {\n const { encrypt: crypt, destroy, header } = encrypt(key);\n const cryptedChunk =\n CHUNK_SIZE + sodium.crypto_secretstream_xchacha20poly1305_ABYTES;\n const max =\n Math.ceil(data.byteLength / CHUNK_SIZE) * cryptedChunk + header.byteLength;\n\n progress?.({\n percent: 0,\n total: max,\n current: 0\n });\n const final = new Uint8Array(max);\n const sparkEncrypted = new SparkMD5.ArrayBuffer();\n const spark = new SparkMD5.ArrayBuffer();\n\n final.set(header);\n sparkEncrypted.append(header);\n let total = header.byteLength;\n progress?.({\n percent: total / max,\n total: max,\n current: total\n });\n let lastPercent = total / max;\n\n for (const chunk of chunks(data, CHUNK_SIZE)) {\n spark.append(chunk);\n const tag =\n chunk.length < CHUNK_SIZE\n ? sodium.crypto_secretstream_xchacha20poly1305_TAG_FINAL\n : sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE;\n const crypted = crypt(tag, chunk);\n sparkEncrypted.append(crypted);\n final.set(crypted, total);\n total += crypted.byteLength;\n const percent = total / max;\n if (percent > lastPercent + 0.01) {\n progress?.({\n percent,\n total: max,\n current: total\n });\n lastPercent = percent;\n }\n }\n\n destroy();\n progress?.({\n percent: 1,\n total,\n current: total\n });\n return {\n data: final.slice(0, total),\n md5Encrypted: sparkEncrypted.end(),\n md5: spark.end()\n };\n}\n\nasync function decryptSecretstream(key, data, progress) {\n const header = data.slice(\n 0,\n sodium.crypto_secretstream_xchacha20poly1305_HEADERBYTES\n );\n data = data.slice(sodium.crypto_secretstream_xchacha20poly1305_HEADERBYTES);\n\n const { decrypt: decryptt, destroy } = decrypt(header, key);\n const chunkSize =\n CHUNK_SIZE + sodium.crypto_secretstream_xchacha20poly1305_ABYTES;\n const max = Math.ceil(data.byteLength / chunkSize) * CHUNK_SIZE;\n\n progress?.({\n percent: 0,\n total: max,\n current: 0\n });\n const final = new Uint8Array(max);\n let total = 0;\n let lastPercent = total / max;\n\n for (const chunk of chunks(data, chunkSize)) {\n const tmp = decryptt(chunk);\n final.set(tmp.message, total);\n total += tmp.message.byteLength;\n\n const percent = total / max;\n if (percent > lastPercent + 0.01) {\n progress?.({\n percent,\n total: max,\n current: total\n });\n lastPercent = percent;\n }\n }\n\n destroy();\n progress?.({\n percent: 1,\n total,\n current: total\n });\n return final.slice(0, total);\n}\n\nself.onmessage = async ({ data }) => {\n switch (data.event) {\n case \"encrypt\": {\n postMessage({ event: \"working\" })\n postMessage({\n event: \"encrypt-result\",\n data: await encryptSecretstream(data.key, data.data, progress => postMessage({\n event: \"encrypt-progress\",\n data: progress\n }))\n });\n postMessage({ event: \"ready\" })\n break;\n }\n case \"decrypt\": {\n postMessage({ event: \"working\" })\n postMessage({\n event: \"decrypt-result\",\n data: await decryptSecretstream(data.key, data.data, progress => postMessage({\n event: \"decrypt-progress\",\n data: progress\n }))\n });\n postMessage({ event: \"ready\" })\n break;\n }\n }\n}" = ...