@hazae41/kdbx/dist/cjs/src/mods/kdbx/headers/inner/index.cjs.map

Rust-like KeePass (KDBX 4) file format for TypeScript

{"version":3,"file":"index.cjs","sources":["../../../../../../../src/mods/kdbx/headers/inner/index.ts"],"sourcesContent":["import { Opaque, Readable, Writable } from \"@hazae41/binary\"\nimport { Cursor } from \"@hazae41/cursor\"\nimport { Lengthed } from \"@hazae41/lengthed\"\nimport { Vector } from \"mods/kdbx/vector/index.js\"\nimport { Cipher } from \"./cipher/index.js\"\nimport { KeePassFile } from \"./markup/index.js\"\n\nexport class HeadersAndContentWithBytes {\n\n  constructor(\n    readonly headers: Headers,\n    readonly content: ContentWithBytes\n  ) { }\n\n  static computeOrThrow(headers: Headers, content: KeePassFile) {\n    const contentWithBytes = ContentWithBytes.computeOrThrow(content)\n    return new HeadersAndContentWithBytes(headers, contentWithBytes)\n  }\n\n  async rotateOrThrow() {\n    return new HeadersAndContentWithBytes(await this.headers.rotateOrThrow(), this.content)\n  }\n\n  sizeOrThrow() {\n    return this.headers.sizeOrThrow() + this.content.sizeOrThrow()\n  }\n\n  writeOrThrow(cursor: Cursor) {\n    this.headers.writeOrThrow(cursor)\n    this.content.writeOrThrow(cursor)\n  }\n\n  recomputeOrThrow() {\n    return HeadersAndContentWithBytes.computeOrThrow(this.headers, this.content.value)\n  }\n\n}\n\nexport class ContentWithBytes {\n\n  constructor(\n    readonly bytes: Opaque,\n    readonly value: KeePassFile\n  ) { }\n\n  static computeOrThrow(content: KeePassFile) {\n    const string = new XMLSerializer().serializeToString(content.document)\n    const opaque = new Opaque(new TextEncoder().encode(string))\n\n    return new ContentWithBytes(opaque, content)\n  }\n\n  sizeOrThrow() {\n    return this.bytes.sizeOrThrow()\n  }\n\n  writeOrThrow(cursor: Cursor) {\n    this.bytes.writeOrThrow(cursor)\n  }\n\n  recomputeOrThrow() {\n    return ContentWithBytes.computeOrThrow(this.value)\n  }\n\n}\n\nexport namespace ContentWithBytes {\n\n  export function readOrThrow(cursor: Cursor) {\n    const bytes = new Opaque(cursor.readOrThrow(cursor.remaining))\n\n    const raw = new TextDecoder().decode(bytes.bytes)\n    const xml = new DOMParser().parseFromString(raw, \"text/xml\")\n\n    return new ContentWithBytes(bytes, new KeePassFile(xml))\n  }\n\n}\n\nexport namespace HeadersAndContentWithBytes {\n\n  export function readOrThrow(cursor: Cursor) {\n    const headers = Headers.readOrThrow(cursor)\n    const content = ContentWithBytes.readOrThrow(cursor)\n\n    return new HeadersAndContentWithBytes(headers, content)\n  }\n\n}\n\nexport interface HeadersInit {\n  readonly cipher: Cipher\n  readonly key: Opaque<32>\n  readonly binary: readonly Opaque[]\n}\n\nexport class Headers {\n\n  constructor(\n    readonly value: Vector<{ 1: readonly [Cipher], 2: readonly [Opaque], 3: readonly Opaque[] }>,\n  ) { }\n\n  get cipher() {\n    return this.value.value[1][0]\n  }\n\n  get key() {\n    return this.value.value[2][0]\n  }\n\n  get binary() {\n    return this.value.value[3]\n  }\n\n  sizeOrThrow() {\n    return this.value.sizeOrThrow()\n  }\n\n  writeOrThrow(cursor: Cursor) {\n    this.value.writeOrThrow(cursor)\n  }\n\n  cloneOrThrow() {\n    return Readable.readFromBytesOrThrow(Headers, Writable.writeToBytesOrThrow(this))\n  }\n\n  async rotateOrThrow() {\n    const { cipher, binary } = this\n\n    const key = new Opaque(new Uint8Array(crypto.getRandomValues(new Uint8Array(32))) as Uint8Array & Lengthed<32>)\n\n    return Headers.initOrThrow({ cipher, key, binary })\n  }\n\n  async getCipherOrThrow() {\n    return await this.cipher.initOrThrow(this.key.bytes)\n  }\n\n}\n\nexport namespace Headers {\n\n  export function initOrThrow(init: HeadersInit) {\n    const { cipher, key, binary } = init\n\n    const indexed = {\n      1: [cipher],\n      2: [key],\n      3: binary\n    } as const\n\n    return new Headers(Vector.initOrThrow(indexed))\n  }\n\n  export function readOrThrow(cursor: Cursor) {\n    const vector = Vector.readOrThrow(cursor)\n\n    if (vector.value[1].length !== 1)\n      throw new Error()\n    if (vector.value[2].length !== 1)\n      throw new Error()\n    if (vector.value[3].length === 0)\n      throw new Error()\n\n    const indexed = {\n      1: [vector.value[1][0].readIntoOrThrow(Cipher)],\n      2: [vector.value[2][0]],\n      3: vector.value[3]\n    } as const\n\n    return new Headers(new Vector(vector.bytes, indexed))\n  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