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# BSON parser
BSON is short for "Binary JSON," and is the binary-encoded serialization of JSON-like documents.
You can learn more about it in [the specification](http://bsonspec.org).
### Table of Contents
- [Usage](#usage)
- [Bugs/Feature Requests](#bugs--feature-requests)
- [Installation](#installation)
- [Documentation](#documentation)
- [FAQ](#faq)
## Bugs / Feature Requests
Think you've found a bug? Want to see a new feature in `bson`? Please open a case in our issue management tool, JIRA:
1. Create an account and login: [jira.mongodb.org](https://jira.mongodb.org)
2. Navigate to the NODE project: [jira.mongodb.org/browse/NODE](https://jira.mongodb.org/browse/NODE)
3. Click **Create Issue** - Please provide as much information as possible about the issue and how to reproduce it.
Bug reports in JIRA for all driver projects (i.e. NODE, PYTHON, CSHARP, JAVA) and the Core Server (i.e. SERVER) project are **public**.
## Usage
To build a new version perform the following operations:
```
npm install
npm run build
```
### Node.js or Bundling Usage
When using a bundler or Node.js you can import bson using the package name:
```js
import { BSON, EJSON, ObjectId } from 'bson';
// or:
// const { BSON, EJSON, ObjectId } = require('bson');
const bytes = BSON.serialize({ _id: new ObjectId() });
console.log(bytes);
const doc = BSON.deserialize(bytes);
console.log(EJSON.stringify(doc));
// {"_id":{"$oid":"..."}}
```
### Browser Usage
If you are working directly in the browser without a bundler please use the `.mjs` bundle like so:
```html
<script type="module">
import { BSON, EJSON, ObjectId } from './lib/bson.mjs';
const bytes = BSON.serialize({ _id: new ObjectId() });
console.log(bytes);
const doc = BSON.deserialize(bytes);
console.log(EJSON.stringify(doc));
// {"_id":{"$oid":"..."}}
</script>
```
## Installation
```sh
npm install bson
```
## Documentation
### BSON
[API documentation](https://mongodb.github.io/node-mongodb-native/Next/modules/BSON.html)
<a name="EJSON"></a>
### EJSON
* [EJSON](#EJSON)
* [.parse(text, [options])](#EJSON.parse)
* [.stringify(value, [replacer], [space], [options])](#EJSON.stringify)
* [.serialize(bson, [options])](#EJSON.serialize)
* [.deserialize(ejson, [options])](#EJSON.deserialize)
<a name="EJSON.parse"></a>
#### *EJSON*.parse(text, [options])
| Param | Type | Default | Description |
| --- | --- | --- | --- |
| text | <code>string</code> | | |
| [options] | <code>object</code> | | Optional settings |
| [options.relaxed] | <code>boolean</code> | <code>true</code> | Attempt to return native JS types where possible, rather than BSON types (if true) |
Parse an Extended JSON string, constructing the JavaScript value or object described by that
string.
**Example**
```js
const { EJSON } = require('bson');
const text = '{ "int32": { "$numberInt": "10" } }';
// prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } }
console.log(EJSON.parse(text, { relaxed: false }));
// prints { int32: 10 }
console.log(EJSON.parse(text));
```
<a name="EJSON.stringify"></a>
#### *EJSON*.stringify(value, [replacer], [space], [options])
| Param | Type | Default | Description |
| --- | --- | --- | --- |
| value | <code>object</code> | | The value to convert to extended JSON |
| [replacer] | <code>function</code> \| <code>array</code> | | A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string |
| [space] | <code>string</code> \| <code>number</code> | | A String or Number object that's used to insert white space into the output JSON string for readability purposes. |
| [options] | <code>object</code> | | Optional settings |
| [options.relaxed] | <code>boolean</code> | <code>true</code> | Enabled Extended JSON's `relaxed` mode |
| [options.legacy] | <code>boolean</code> | <code>true</code> | Output in Extended JSON v1 |
Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer
function is specified or optionally including only the specified properties if a replacer array
is specified.
**Example**
```js
const { EJSON } = require('bson');
const Int32 = require('mongodb').Int32;
const doc = { int32: new Int32(10) };
// prints '{"int32":{"$numberInt":"10"}}'
console.log(EJSON.stringify(doc, { relaxed: false }));
// prints '{"int32":10}'
console.log(EJSON.stringify(doc));
```
<a name="EJSON.serialize"></a>
#### *EJSON*.serialize(bson, [options])
| Param | Type | Description |
| --- | --- | --- |
| bson | <code>object</code> | The object to serialize |
| [options] | <code>object</code> | Optional settings passed to the `stringify` function |
Serializes an object to an Extended JSON string, and reparse it as a JavaScript object.
<a name="EJSON.deserialize"></a>
#### *EJSON*.deserialize(ejson, [options])
| Param | Type | Description |
| --- | --- | --- |
| ejson | <code>object</code> | The Extended JSON object to deserialize |
| [options] | <code>object</code> | Optional settings passed to the parse method |
Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types
## Error Handling
It is our recommendation to use `BSONError.isBSONError()` checks on errors and to avoid relying on parsing `error.message` and `error.name` strings in your code. We guarantee `BSONError.isBSONError()` checks will pass according to semver guidelines, but errors may be sub-classed or their messages may change at any time, even patch releases, as we see fit to increase the helpfulness of the errors.
Any new errors we add to the driver will directly extend an existing error class and no existing error will be moved to a different parent class outside of a major release.
This means `BSONError.isBSONError()` will always be able to accurately capture the errors that our BSON library throws.
Hypothetical example: A collection in our Db has an issue with UTF-8 data:
```ts
let documentCount = 0;
const cursor = collection.find({}, { utf8Validation: true });
try {
for await (const doc of cursor) documentCount += 1;
} catch (error) {
if (BSONError.isBSONError(error)) {
console.log(`Found the troublemaker UTF-8!: ${documentCount} ${error.message}`);
return documentCount;
}
throw error;
}
```
## React Native
BSON vendors the required polyfills for `TextEncoder`, `TextDecoder`, `atob`, `btoa` imported from React Native and therefore doesn't expect users to polyfill these. One additional polyfill, `crypto.getRandomValues` is recommended and can be installed with the following command:
```sh
npm install --save react-native-get-random-values
```
The following snippet should be placed at the top of the entrypoint (by default this is the root `index.js` file) for React Native projects using the BSON library. These lines must be placed for any code that imports `BSON`.
```typescript
// Required Polyfills For ReactNative
import 'react-native-get-random-values';
```
Finally, import the `BSON` library like so:
```typescript
import { BSON, EJSON } from 'bson';
```
This will cause React Native to import the `node_modules/bson/lib/bson.rn.cjs` bundle (see the `"react-native"` setting we have in the `"exports"` section of our [package.json](./package.json).)
### Technical Note about React Native module import
The `"exports"` definition in our `package.json` will result in BSON's CommonJS bundle being imported in a React Native project instead of the ES module bundle. Importing the CommonJS bundle is necessary because BSON's ES module bundle of BSON uses top-level await, which is not supported syntax in [React Native's runtime hermes](https://hermesengine.dev/).
## FAQ
#### Why does `undefined` get converted to `null`?
The `undefined` BSON type has been [deprecated for many years](http://bsonspec.org/spec.html), so this library has dropped support for it. Use the `ignoreUndefined` option (for example, from the [driver](http://mongodb.github.io/node-mongodb-native/2.2/api/MongoClient.html#connect) ) to instead remove `undefined` keys.
#### How do I add custom serialization logic?
This library looks for `toBSON()` functions on every path, and calls the `toBSON()` function to get the value to serialize.
```javascript
const BSON = require('bson');
class CustomSerialize {
toBSON() {
return 42;
}
}
const obj = { answer: new CustomSerialize() };
// "{ answer: 42 }"
console.log(BSON.deserialize(BSON.serialize(obj)));
```

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#! /usr/bin/env node
var cp = require('child_process');
var fs = require('fs');
var nodeMajorVersion = +process.version.match(/^v(\d+)\.\d+/)[1];
if (fs.existsSync('src') && nodeMajorVersion >= 10) {
cp.spawnSync('npm', ['run', 'build'], { stdio: 'inherit', shell: true });
} else {
if (!fs.existsSync('lib')) {
console.warn('BSON: No compiled javascript present, the library is not installed correctly.');
if (nodeMajorVersion < 10) {
console.warn(
'This library can only be compiled in nodejs version 10 or later, currently running: ' +
nodeMajorVersion
);
}
}
}

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{
"name": "bson",
"description": "A bson parser for node.js and the browser",
"keywords": [
"mongodb",
"bson",
"parser"
],
"files": [
"lib",
"src",
"bson.d.ts",
"etc/prepare.js",
"vendor"
],
"types": "bson.d.ts",
"version": "5.4.0",
"author": {
"name": "The MongoDB NodeJS Team",
"email": "dbx-node@mongodb.com"
},
"license": "Apache-2.0",
"contributors": [],
"repository": "mongodb/js-bson",
"bugs": {
"url": "https://jira.mongodb.org/projects/NODE/issues/"
},
"devDependencies": {
"@istanbuljs/nyc-config-typescript": "^1.0.2",
"@microsoft/api-extractor": "^7.35.1",
"@octokit/core": "^4.2.4",
"@rollup/plugin-node-resolve": "^15.0.2",
"@rollup/plugin-typescript": "^11.1.0",
"@types/chai": "^4.3.5",
"@types/mocha": "^10.0.1",
"@types/node": "^18.16.3",
"@types/sinon": "^10.0.14",
"@types/sinon-chai": "^3.2.9",
"@typescript-eslint/eslint-plugin": "^5.59.2",
"@typescript-eslint/parser": "^5.59.2",
"benchmark": "^2.1.4",
"chai": "^4.3.7",
"chalk": "^5.2.0",
"eslint": "^8.39.0",
"eslint-config-prettier": "^8.8.0",
"eslint-plugin-no-bigint-usage": "file:./etc/eslint/no-bigint-usage",
"eslint-plugin-prettier": "^4.2.1",
"eslint-plugin-tsdoc": "^0.2.17",
"magic-string": "^0.30.0",
"mocha": "10.2.0",
"node-fetch": "^3.3.1",
"nyc": "^15.1.0",
"prettier": "^2.8.8",
"rollup": "^3.21.4",
"sinon": "^15.0.4",
"sinon-chai": "^3.7.0",
"source-map-support": "^0.5.21",
"standard-version": "^9.5.0",
"ts-node": "^10.9.1",
"tsd": "^0.28.1",
"typescript": "^5.0.4",
"typescript-cached-transpile": "0.0.6",
"uuid": "^9.0.0",
"v8-profiler-next": "^1.9.0"
},
"tsd": {
"directory": "test/types",
"compilerOptions": {
"strict": true,
"target": "esnext",
"module": "commonjs",
"moduleResolution": "node"
}
},
"config": {
"native": false
},
"main": "./lib/bson.cjs",
"module": "./lib/bson.mjs",
"exports": {
"import": {
"types": "./bson.d.ts",
"default": "./lib/bson.mjs"
},
"require": {
"types": "./bson.d.ts",
"default": "./lib/bson.cjs"
},
"react-native": "./lib/bson.rn.cjs",
"browser": "./lib/bson.mjs"
},
"compass:exports": {
"import": "./lib/bson.cjs",
"require": "./lib/bson.cjs"
},
"engines": {
"node": ">=14.20.1"
},
"scripts": {
"pretest": "npm run build",
"test": "npm run check:node && npm run check:web && npm run check:web-no-bigint",
"check:node": "WEB=false mocha test/node",
"check:tsd": "npm run build:dts && tsd",
"check:web": "WEB=true mocha test/node",
"check:web-no-bigint": "WEB=true NO_BIGINT=true mocha test/node",
"build:ts": "node ./node_modules/typescript/bin/tsc",
"build:dts": "npm run build:ts && api-extractor run --typescript-compiler-folder node_modules/typescript --local && node etc/clean_definition_files.cjs",
"build:bundle": "rollup -c rollup.config.mjs",
"build": "npm run build:dts && npm run build:bundle",
"check:lint": "eslint -v && eslint --ext '.js,.ts' --max-warnings=0 src test && npm run build:dts && npm run check:tsd",
"format": "eslint --ext '.js,.ts' src test --fix",
"check:coverage": "nyc --check-coverage npm run check:node",
"prepare": "node etc/prepare.js",
"release": "standard-version -i HISTORY.md"
}
}

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import { isUint8Array } from './parser/utils';
import type { EJSONOptions } from './extended_json';
import { BSONError } from './error';
import { BSON_BINARY_SUBTYPE_UUID_NEW } from './constants';
import { ByteUtils } from './utils/byte_utils';
import { BSONValue } from './bson_value';
/** @public */
export type BinarySequence = Uint8Array | number[];
/** @public */
export interface BinaryExtendedLegacy {
$type: string;
$binary: string;
}
/** @public */
export interface BinaryExtended {
$binary: {
subType: string;
base64: string;
};
}
/**
* A class representation of the BSON Binary type.
* @public
* @category BSONType
*/
export class Binary extends BSONValue {
get _bsontype(): 'Binary' {
return 'Binary';
}
/**
* Binary default subtype
* @internal
*/
private static readonly BSON_BINARY_SUBTYPE_DEFAULT = 0;
/** Initial buffer default size */
static readonly BUFFER_SIZE = 256;
/** Default BSON type */
static readonly SUBTYPE_DEFAULT = 0;
/** Function BSON type */
static readonly SUBTYPE_FUNCTION = 1;
/** Byte Array BSON type */
static readonly SUBTYPE_BYTE_ARRAY = 2;
/** Deprecated UUID BSON type @deprecated Please use SUBTYPE_UUID */
static readonly SUBTYPE_UUID_OLD = 3;
/** UUID BSON type */
static readonly SUBTYPE_UUID = 4;
/** MD5 BSON type */
static readonly SUBTYPE_MD5 = 5;
/** Encrypted BSON type */
static readonly SUBTYPE_ENCRYPTED = 6;
/** Column BSON type */
static readonly SUBTYPE_COLUMN = 7;
/** User BSON type */
static readonly SUBTYPE_USER_DEFINED = 128;
buffer!: Uint8Array;
sub_type!: number;
position!: number;
/**
* Create a new Binary instance.
*
* This constructor can accept a string as its first argument. In this case,
* this string will be encoded using ISO-8859-1, **not** using UTF-8.
* This is almost certainly not what you want. Use `new Binary(Buffer.from(string))`
* instead to convert the string to a Buffer using UTF-8 first.
*
* @param buffer - a buffer object containing the binary data.
* @param subType - the option binary type.
*/
constructor(buffer?: string | BinarySequence, subType?: number) {
super();
if (
!(buffer == null) &&
!(typeof buffer === 'string') &&
!ArrayBuffer.isView(buffer) &&
!(buffer instanceof ArrayBuffer) &&
!Array.isArray(buffer)
) {
throw new BSONError(
'Binary can only be constructed from string, Buffer, TypedArray, or Array<number>'
);
}
this.sub_type = subType ?? Binary.BSON_BINARY_SUBTYPE_DEFAULT;
if (buffer == null) {
// create an empty binary buffer
this.buffer = ByteUtils.allocate(Binary.BUFFER_SIZE);
this.position = 0;
} else {
if (typeof buffer === 'string') {
// string
this.buffer = ByteUtils.fromISO88591(buffer);
} else if (Array.isArray(buffer)) {
// number[]
this.buffer = ByteUtils.fromNumberArray(buffer);
} else {
// Buffer | TypedArray | ArrayBuffer
this.buffer = ByteUtils.toLocalBufferType(buffer);
}
this.position = this.buffer.byteLength;
}
}
/**
* Updates this binary with byte_value.
*
* @param byteValue - a single byte we wish to write.
*/
put(byteValue: string | number | Uint8Array | number[]): void {
// If it's a string and a has more than one character throw an error
if (typeof byteValue === 'string' && byteValue.length !== 1) {
throw new BSONError('only accepts single character String');
} else if (typeof byteValue !== 'number' && byteValue.length !== 1)
throw new BSONError('only accepts single character Uint8Array or Array');
// Decode the byte value once
let decodedByte: number;
if (typeof byteValue === 'string') {
decodedByte = byteValue.charCodeAt(0);
} else if (typeof byteValue === 'number') {
decodedByte = byteValue;
} else {
decodedByte = byteValue[0];
}
if (decodedByte < 0 || decodedByte > 255) {
throw new BSONError('only accepts number in a valid unsigned byte range 0-255');
}
if (this.buffer.byteLength > this.position) {
this.buffer[this.position++] = decodedByte;
} else {
const newSpace = ByteUtils.allocate(Binary.BUFFER_SIZE + this.buffer.length);
newSpace.set(this.buffer, 0);
this.buffer = newSpace;
this.buffer[this.position++] = decodedByte;
}
}
/**
* Writes a buffer or string to the binary.
*
* @param sequence - a string or buffer to be written to the Binary BSON object.
* @param offset - specify the binary of where to write the content.
*/
write(sequence: string | BinarySequence, offset: number): void {
offset = typeof offset === 'number' ? offset : this.position;
// If the buffer is to small let's extend the buffer
if (this.buffer.byteLength < offset + sequence.length) {
const newSpace = ByteUtils.allocate(this.buffer.byteLength + sequence.length);
newSpace.set(this.buffer, 0);
// Assign the new buffer
this.buffer = newSpace;
}
if (ArrayBuffer.isView(sequence)) {
this.buffer.set(ByteUtils.toLocalBufferType(sequence), offset);
this.position =
offset + sequence.byteLength > this.position ? offset + sequence.length : this.position;
} else if (typeof sequence === 'string') {
const bytes = ByteUtils.fromISO88591(sequence);
this.buffer.set(bytes, offset);
this.position =
offset + sequence.length > this.position ? offset + sequence.length : this.position;
}
}
/**
* Reads **length** bytes starting at **position**.
*
* @param position - read from the given position in the Binary.
* @param length - the number of bytes to read.
*/
read(position: number, length: number): BinarySequence {
length = length && length > 0 ? length : this.position;
// Let's return the data based on the type we have
return this.buffer.slice(position, position + length);
}
/**
* Returns the value of this binary as a string.
* @param asRaw - Will skip converting to a string
* @remarks
* This is handy when calling this function conditionally for some key value pairs and not others
*/
value(asRaw?: boolean): string | BinarySequence {
asRaw = !!asRaw;
// Optimize to serialize for the situation where the data == size of buffer
if (asRaw && this.buffer.length === this.position) {
return this.buffer;
}
// If it's a node.js buffer object
if (asRaw) {
return this.buffer.slice(0, this.position);
}
// TODO(NODE-4361): remove binary string support, value(true) should be the default / only option here.
return ByteUtils.toISO88591(this.buffer.subarray(0, this.position));
}
/** the length of the binary sequence */
length(): number {
return this.position;
}
toJSON(): string {
return ByteUtils.toBase64(this.buffer);
}
toString(encoding?: 'hex' | 'base64' | 'utf8' | 'utf-8'): string {
if (encoding === 'hex') return ByteUtils.toHex(this.buffer);
if (encoding === 'base64') return ByteUtils.toBase64(this.buffer);
if (encoding === 'utf8' || encoding === 'utf-8')
return ByteUtils.toUTF8(this.buffer, 0, this.buffer.byteLength);
return ByteUtils.toUTF8(this.buffer, 0, this.buffer.byteLength);
}
/** @internal */
toExtendedJSON(options?: EJSONOptions): BinaryExtendedLegacy | BinaryExtended {
options = options || {};
const base64String = ByteUtils.toBase64(this.buffer);
const subType = Number(this.sub_type).toString(16);
if (options.legacy) {
return {
$binary: base64String,
$type: subType.length === 1 ? '0' + subType : subType
};
}
return {
$binary: {
base64: base64String,
subType: subType.length === 1 ? '0' + subType : subType
}
};
}
toUUID(): UUID {
if (this.sub_type === Binary.SUBTYPE_UUID) {
return new UUID(this.buffer.slice(0, this.position));
}
throw new BSONError(
`Binary sub_type "${this.sub_type}" is not supported for converting to UUID. Only "${Binary.SUBTYPE_UUID}" is currently supported.`
);
}
/** Creates an Binary instance from a hex digit string */
static createFromHexString(hex: string, subType?: number): Binary {
return new Binary(ByteUtils.fromHex(hex), subType);
}
/** Creates an Binary instance from a base64 string */
static createFromBase64(base64: string, subType?: number): Binary {
return new Binary(ByteUtils.fromBase64(base64), subType);
}
/** @internal */
static fromExtendedJSON(
doc: BinaryExtendedLegacy | BinaryExtended | UUIDExtended,
options?: EJSONOptions
): Binary {
options = options || {};
let data: Uint8Array | undefined;
let type;
if ('$binary' in doc) {
if (options.legacy && typeof doc.$binary === 'string' && '$type' in doc) {
type = doc.$type ? parseInt(doc.$type, 16) : 0;
data = ByteUtils.fromBase64(doc.$binary);
} else {
if (typeof doc.$binary !== 'string') {
type = doc.$binary.subType ? parseInt(doc.$binary.subType, 16) : 0;
data = ByteUtils.fromBase64(doc.$binary.base64);
}
}
} else if ('$uuid' in doc) {
type = 4;
data = UUID.bytesFromString(doc.$uuid);
}
if (!data) {
throw new BSONError(`Unexpected Binary Extended JSON format ${JSON.stringify(doc)}`);
}
return type === BSON_BINARY_SUBTYPE_UUID_NEW ? new UUID(data) : new Binary(data, type);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
const base64 = ByteUtils.toBase64(this.buffer.subarray(0, this.position));
return `Binary.createFromBase64("${base64}", ${this.sub_type})`;
}
}
/** @public */
export type UUIDExtended = {
$uuid: string;
};
const UUID_BYTE_LENGTH = 16;
const UUID_WITHOUT_DASHES = /^[0-9A-F]{32}$/i;
const UUID_WITH_DASHES = /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i;
/**
* A class representation of the BSON UUID type.
* @public
*/
export class UUID extends Binary {
/** @deprecated Hex string is no longer cached, this control will be removed in a future major release */
static cacheHexString = false;
/**
* Create a UUID type
*
* When the argument to the constructor is omitted a random v4 UUID will be generated.
*
* @param input - Can be a 32 or 36 character hex string (dashes excluded/included) or a 16 byte binary Buffer.
*/
constructor(input?: string | Uint8Array | UUID) {
let bytes: Uint8Array;
if (input == null) {
bytes = UUID.generate();
} else if (input instanceof UUID) {
bytes = ByteUtils.toLocalBufferType(new Uint8Array(input.buffer));
} else if (ArrayBuffer.isView(input) && input.byteLength === UUID_BYTE_LENGTH) {
bytes = ByteUtils.toLocalBufferType(input);
} else if (typeof input === 'string') {
bytes = UUID.bytesFromString(input);
} else {
throw new BSONError(
'Argument passed in UUID constructor must be a UUID, a 16 byte Buffer or a 32/36 character hex string (dashes excluded/included, format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).'
);
}
super(bytes, BSON_BINARY_SUBTYPE_UUID_NEW);
}
/**
* The UUID bytes
* @readonly
*/
get id(): Uint8Array {
return this.buffer;
}
set id(value: Uint8Array) {
this.buffer = value;
}
/**
* Returns the UUID id as a 32 or 36 character hex string representation, excluding/including dashes (defaults to 36 character dash separated)
* @param includeDashes - should the string exclude dash-separators.
*/
toHexString(includeDashes = true): string {
if (includeDashes) {
return [
ByteUtils.toHex(this.buffer.subarray(0, 4)),
ByteUtils.toHex(this.buffer.subarray(4, 6)),
ByteUtils.toHex(this.buffer.subarray(6, 8)),
ByteUtils.toHex(this.buffer.subarray(8, 10)),
ByteUtils.toHex(this.buffer.subarray(10, 16))
].join('-');
}
return ByteUtils.toHex(this.buffer);
}
/**
* Converts the id into a 36 character (dashes included) hex string, unless a encoding is specified.
*/
toString(encoding?: 'hex' | 'base64'): string {
if (encoding === 'hex') return ByteUtils.toHex(this.id);
if (encoding === 'base64') return ByteUtils.toBase64(this.id);
return this.toHexString();
}
/**
* Converts the id into its JSON string representation.
* A 36 character (dashes included) hex string in the format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
*/
toJSON(): string {
return this.toHexString();
}
/**
* Compares the equality of this UUID with `otherID`.
*
* @param otherId - UUID instance to compare against.
*/
equals(otherId: string | Uint8Array | UUID): boolean {
if (!otherId) {
return false;
}
if (otherId instanceof UUID) {
return ByteUtils.equals(otherId.id, this.id);
}
try {
return ByteUtils.equals(new UUID(otherId).id, this.id);
} catch {
return false;
}
}
/**
* Creates a Binary instance from the current UUID.
*/
toBinary(): Binary {
return new Binary(this.id, Binary.SUBTYPE_UUID);
}
/**
* Generates a populated buffer containing a v4 uuid
*/
static generate(): Uint8Array {
const bytes = ByteUtils.randomBytes(UUID_BYTE_LENGTH);
// Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
// Kindly borrowed from https://github.com/uuidjs/uuid/blob/master/src/v4.js
bytes[6] = (bytes[6] & 0x0f) | 0x40;
bytes[8] = (bytes[8] & 0x3f) | 0x80;
return bytes;
}
/**
* Checks if a value is a valid bson UUID
* @param input - UUID, string or Buffer to validate.
*/
static isValid(input: string | Uint8Array | UUID | Binary): boolean {
if (!input) {
return false;
}
if (typeof input === 'string') {
return UUID.isValidUUIDString(input);
}
if (isUint8Array(input)) {
return input.byteLength === UUID_BYTE_LENGTH;
}
return (
input._bsontype === 'Binary' &&
input.sub_type === this.SUBTYPE_UUID &&
input.buffer.byteLength === 16
);
}
/**
* Creates an UUID from a hex string representation of an UUID.
* @param hexString - 32 or 36 character hex string (dashes excluded/included).
*/
static override createFromHexString(hexString: string): UUID {
const buffer = UUID.bytesFromString(hexString);
return new UUID(buffer);
}
/** Creates an UUID from a base64 string representation of an UUID. */
static override createFromBase64(base64: string): UUID {
return new UUID(ByteUtils.fromBase64(base64));
}
/** @internal */
static bytesFromString(representation: string) {
if (!UUID.isValidUUIDString(representation)) {
throw new BSONError(
'UUID string representation must be 32 hex digits or canonical hyphenated representation'
);
}
return ByteUtils.fromHex(representation.replace(/-/g, ''));
}
/**
* @internal
*
* Validates a string to be a hex digit sequence with or without dashes.
* The canonical hyphenated representation of a uuid is hex in 8-4-4-4-12 groups.
*/
static isValidUUIDString(representation: string) {
return UUID_WITHOUT_DASHES.test(representation) || UUID_WITH_DASHES.test(representation);
}
/**
* Converts to a string representation of this Id.
*
* @returns return the 36 character hex string representation.
* @internal
*/
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new UUID("${this.toHexString()}")`;
}
}

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import { Binary, UUID } from './binary';
import { Code } from './code';
import { DBRef } from './db_ref';
import { Decimal128 } from './decimal128';
import { Double } from './double';
import { Int32 } from './int_32';
import { Long } from './long';
import { MaxKey } from './max_key';
import { MinKey } from './min_key';
import { ObjectId } from './objectid';
import { internalCalculateObjectSize } from './parser/calculate_size';
// Parts of the parser
import { internalDeserialize, type DeserializeOptions } from './parser/deserializer';
import { serializeInto, type SerializeOptions } from './parser/serializer';
import { BSONRegExp } from './regexp';
import { BSONSymbol } from './symbol';
import { Timestamp } from './timestamp';
import { ByteUtils } from './utils/byte_utils';
export type { UUIDExtended, BinaryExtended, BinaryExtendedLegacy, BinarySequence } from './binary';
export type { CodeExtended } from './code';
export type { DBRefLike } from './db_ref';
export type { Decimal128Extended } from './decimal128';
export type { DoubleExtended } from './double';
export type { EJSONOptions } from './extended_json';
export type { Int32Extended } from './int_32';
export type { LongExtended } from './long';
export type { MaxKeyExtended } from './max_key';
export type { MinKeyExtended } from './min_key';
export type { ObjectIdExtended, ObjectIdLike } from './objectid';
export type { BSONRegExpExtended, BSONRegExpExtendedLegacy } from './regexp';
export type { BSONSymbolExtended } from './symbol';
export type { LongWithoutOverrides, TimestampExtended, TimestampOverrides } from './timestamp';
export type { LongWithoutOverridesClass } from './timestamp';
export type { SerializeOptions, DeserializeOptions };
export {
Code,
BSONSymbol,
DBRef,
Binary,
ObjectId,
UUID,
Long,
Timestamp,
Double,
Int32,
MinKey,
MaxKey,
BSONRegExp,
Decimal128
};
export { BSONValue } from './bson_value';
export { BSONError, BSONVersionError, BSONRuntimeError } from './error';
export { BSONType } from './constants';
export { EJSON } from './extended_json';
/** @public */
export interface Document {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
[key: string]: any;
}
/** @internal */
// Default Max Size
const MAXSIZE = 1024 * 1024 * 17;
// Current Internal Temporary Serialization Buffer
let buffer = ByteUtils.allocate(MAXSIZE);
/**
* Sets the size of the internal serialization buffer.
*
* @param size - The desired size for the internal serialization buffer in bytes
* @public
*/
export function setInternalBufferSize(size: number): void {
// Resize the internal serialization buffer if needed
if (buffer.length < size) {
buffer = ByteUtils.allocate(size);
}
}
/**
* Serialize a Javascript object.
*
* @param object - the Javascript object to serialize.
* @returns Buffer object containing the serialized object.
* @public
*/
export function serialize(object: Document, options: SerializeOptions = {}): Uint8Array {
// Unpack the options
const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
const serializeFunctions =
typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
const ignoreUndefined =
typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
const minInternalBufferSize =
typeof options.minInternalBufferSize === 'number' ? options.minInternalBufferSize : MAXSIZE;
// Resize the internal serialization buffer if needed
if (buffer.length < minInternalBufferSize) {
buffer = ByteUtils.allocate(minInternalBufferSize);
}
// Attempt to serialize
const serializationIndex = serializeInto(
buffer,
object,
checkKeys,
0,
0,
serializeFunctions,
ignoreUndefined,
null
);
// Create the final buffer
const finishedBuffer = ByteUtils.allocate(serializationIndex);
// Copy into the finished buffer
finishedBuffer.set(buffer.subarray(0, serializationIndex), 0);
// Return the buffer
return finishedBuffer;
}
/**
* Serialize a Javascript object using a predefined Buffer and index into the buffer,
* useful when pre-allocating the space for serialization.
*
* @param object - the Javascript object to serialize.
* @param finalBuffer - the Buffer you pre-allocated to store the serialized BSON object.
* @returns the index pointing to the last written byte in the buffer.
* @public
*/
export function serializeWithBufferAndIndex(
object: Document,
finalBuffer: Uint8Array,
options: SerializeOptions = {}
): number {
// Unpack the options
const checkKeys = typeof options.checkKeys === 'boolean' ? options.checkKeys : false;
const serializeFunctions =
typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
const ignoreUndefined =
typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
const startIndex = typeof options.index === 'number' ? options.index : 0;
// Attempt to serialize
const serializationIndex = serializeInto(
buffer,
object,
checkKeys,
0,
0,
serializeFunctions,
ignoreUndefined,
null
);
finalBuffer.set(buffer.subarray(0, serializationIndex), startIndex);
// Return the index
return startIndex + serializationIndex - 1;
}
/**
* Deserialize data as BSON.
*
* @param buffer - the buffer containing the serialized set of BSON documents.
* @returns returns the deserialized Javascript Object.
* @public
*/
export function deserialize(buffer: Uint8Array, options: DeserializeOptions = {}): Document {
return internalDeserialize(ByteUtils.toLocalBufferType(buffer), options);
}
/** @public */
export type CalculateObjectSizeOptions = Pick<
SerializeOptions,
'serializeFunctions' | 'ignoreUndefined'
>;
/**
* Calculate the bson size for a passed in Javascript object.
*
* @param object - the Javascript object to calculate the BSON byte size for
* @returns size of BSON object in bytes
* @public
*/
export function calculateObjectSize(
object: Document,
options: CalculateObjectSizeOptions = {}
): number {
options = options || {};
const serializeFunctions =
typeof options.serializeFunctions === 'boolean' ? options.serializeFunctions : false;
const ignoreUndefined =
typeof options.ignoreUndefined === 'boolean' ? options.ignoreUndefined : true;
return internalCalculateObjectSize(object, serializeFunctions, ignoreUndefined);
}
/**
* Deserialize stream data as BSON documents.
*
* @param data - the buffer containing the serialized set of BSON documents.
* @param startIndex - the start index in the data Buffer where the deserialization is to start.
* @param numberOfDocuments - number of documents to deserialize.
* @param documents - an array where to store the deserialized documents.
* @param docStartIndex - the index in the documents array from where to start inserting documents.
* @param options - additional options used for the deserialization.
* @returns next index in the buffer after deserialization **x** numbers of documents.
* @public
*/
export function deserializeStream(
data: Uint8Array | ArrayBuffer,
startIndex: number,
numberOfDocuments: number,
documents: Document[],
docStartIndex: number,
options: DeserializeOptions
): number {
const internalOptions = Object.assign(
{ allowObjectSmallerThanBufferSize: true, index: 0 },
options
);
const bufferData = ByteUtils.toLocalBufferType(data);
let index = startIndex;
// Loop over all documents
for (let i = 0; i < numberOfDocuments; i++) {
// Find size of the document
const size =
bufferData[index] |
(bufferData[index + 1] << 8) |
(bufferData[index + 2] << 16) |
(bufferData[index + 3] << 24);
// Update options with index
internalOptions.index = index;
// Parse the document at this point
documents[docStartIndex + i] = internalDeserialize(bufferData, internalOptions);
// Adjust index by the document size
index = index + size;
}
// Return object containing end index of parsing and list of documents
return index;
}

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import { BSON_MAJOR_VERSION } from './constants';
/** @public */
export abstract class BSONValue {
/** @public */
public abstract get _bsontype(): string;
/** @internal */
get [Symbol.for('@@mdb.bson.version')](): typeof BSON_MAJOR_VERSION {
return BSON_MAJOR_VERSION;
}
/** @public */
public abstract inspect(): string;
/** @internal */
abstract toExtendedJSON(): unknown;
}

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import type { Document } from './bson';
import { BSONValue } from './bson_value';
/** @public */
export interface CodeExtended {
$code: string;
$scope?: Document;
}
/**
* A class representation of the BSON Code type.
* @public
* @category BSONType
*/
export class Code extends BSONValue {
get _bsontype(): 'Code' {
return 'Code';
}
code: string;
// a code instance having a null scope is what determines whether
// it is BSONType 0x0D (just code) / 0x0F (code with scope)
scope: Document | null;
/**
* @param code - a string or function.
* @param scope - an optional scope for the function.
*/
constructor(code: string | Function, scope?: Document | null) {
super();
this.code = code.toString();
this.scope = scope ?? null;
}
toJSON(): { code: string; scope?: Document } {
if (this.scope != null) {
return { code: this.code, scope: this.scope };
}
return { code: this.code };
}
/** @internal */
toExtendedJSON(): CodeExtended {
if (this.scope) {
return { $code: this.code, $scope: this.scope };
}
return { $code: this.code };
}
/** @internal */
static fromExtendedJSON(doc: CodeExtended): Code {
return new Code(doc.$code, doc.$scope);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
const codeJson = this.toJSON();
return `new Code("${String(codeJson.code)}"${
codeJson.scope != null ? `, ${JSON.stringify(codeJson.scope)}` : ''
})`;
}
}

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/** @internal */
export const BSON_MAJOR_VERSION = 5 as const;
/** @internal */
export const BSON_INT32_MAX = 0x7fffffff;
/** @internal */
export const BSON_INT32_MIN = -0x80000000;
/** @internal */
export const BSON_INT64_MAX = Math.pow(2, 63) - 1;
/** @internal */
export const BSON_INT64_MIN = -Math.pow(2, 63);
/**
* Any integer up to 2^53 can be precisely represented by a double.
* @internal
*/
export const JS_INT_MAX = Math.pow(2, 53);
/**
* Any integer down to -2^53 can be precisely represented by a double.
* @internal
*/
export const JS_INT_MIN = -Math.pow(2, 53);
/** Number BSON Type @internal */
export const BSON_DATA_NUMBER = 1;
/** String BSON Type @internal */
export const BSON_DATA_STRING = 2;
/** Object BSON Type @internal */
export const BSON_DATA_OBJECT = 3;
/** Array BSON Type @internal */
export const BSON_DATA_ARRAY = 4;
/** Binary BSON Type @internal */
export const BSON_DATA_BINARY = 5;
/** Binary BSON Type @internal */
export const BSON_DATA_UNDEFINED = 6;
/** ObjectId BSON Type @internal */
export const BSON_DATA_OID = 7;
/** Boolean BSON Type @internal */
export const BSON_DATA_BOOLEAN = 8;
/** Date BSON Type @internal */
export const BSON_DATA_DATE = 9;
/** null BSON Type @internal */
export const BSON_DATA_NULL = 10;
/** RegExp BSON Type @internal */
export const BSON_DATA_REGEXP = 11;
/** Code BSON Type @internal */
export const BSON_DATA_DBPOINTER = 12;
/** Code BSON Type @internal */
export const BSON_DATA_CODE = 13;
/** Symbol BSON Type @internal */
export const BSON_DATA_SYMBOL = 14;
/** Code with Scope BSON Type @internal */
export const BSON_DATA_CODE_W_SCOPE = 15;
/** 32 bit Integer BSON Type @internal */
export const BSON_DATA_INT = 16;
/** Timestamp BSON Type @internal */
export const BSON_DATA_TIMESTAMP = 17;
/** Long BSON Type @internal */
export const BSON_DATA_LONG = 18;
/** Decimal128 BSON Type @internal */
export const BSON_DATA_DECIMAL128 = 19;
/** MinKey BSON Type @internal */
export const BSON_DATA_MIN_KEY = 0xff;
/** MaxKey BSON Type @internal */
export const BSON_DATA_MAX_KEY = 0x7f;
/** Binary Default Type @internal */
export const BSON_BINARY_SUBTYPE_DEFAULT = 0;
/** Binary Function Type @internal */
export const BSON_BINARY_SUBTYPE_FUNCTION = 1;
/** Binary Byte Array Type @internal */
export const BSON_BINARY_SUBTYPE_BYTE_ARRAY = 2;
/** Binary Deprecated UUID Type @deprecated Please use BSON_BINARY_SUBTYPE_UUID_NEW @internal */
export const BSON_BINARY_SUBTYPE_UUID = 3;
/** Binary UUID Type @internal */
export const BSON_BINARY_SUBTYPE_UUID_NEW = 4;
/** Binary MD5 Type @internal */
export const BSON_BINARY_SUBTYPE_MD5 = 5;
/** Encrypted BSON type @internal */
export const BSON_BINARY_SUBTYPE_ENCRYPTED = 6;
/** Column BSON type @internal */
export const BSON_BINARY_SUBTYPE_COLUMN = 7;
/** Binary User Defined Type @internal */
export const BSON_BINARY_SUBTYPE_USER_DEFINED = 128;
/** @public */
export const BSONType = Object.freeze({
double: 1,
string: 2,
object: 3,
array: 4,
binData: 5,
undefined: 6,
objectId: 7,
bool: 8,
date: 9,
null: 10,
regex: 11,
dbPointer: 12,
javascript: 13,
symbol: 14,
javascriptWithScope: 15,
int: 16,
timestamp: 17,
long: 18,
decimal: 19,
minKey: -1,
maxKey: 127
} as const);
/** @public */
export type BSONType = (typeof BSONType)[keyof typeof BSONType];

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import type { Document } from './bson';
import { BSONValue } from './bson_value';
import type { EJSONOptions } from './extended_json';
import type { ObjectId } from './objectid';
/** @public */
export interface DBRefLike {
$ref: string;
$id: ObjectId;
$db?: string;
}
/** @internal */
export function isDBRefLike(value: unknown): value is DBRefLike {
return (
value != null &&
typeof value === 'object' &&
'$id' in value &&
value.$id != null &&
'$ref' in value &&
typeof value.$ref === 'string' &&
// If '$db' is defined it MUST be a string, otherwise it should be absent
(!('$db' in value) || ('$db' in value && typeof value.$db === 'string'))
);
}
/**
* A class representation of the BSON DBRef type.
* @public
* @category BSONType
*/
export class DBRef extends BSONValue {
get _bsontype(): 'DBRef' {
return 'DBRef';
}
collection!: string;
oid!: ObjectId;
db?: string;
fields!: Document;
/**
* @param collection - the collection name.
* @param oid - the reference ObjectId.
* @param db - optional db name, if omitted the reference is local to the current db.
*/
constructor(collection: string, oid: ObjectId, db?: string, fields?: Document) {
super();
// check if namespace has been provided
const parts = collection.split('.');
if (parts.length === 2) {
db = parts.shift();
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
collection = parts.shift()!;
}
this.collection = collection;
this.oid = oid;
this.db = db;
this.fields = fields || {};
}
// Property provided for compatibility with the 1.x parser
// the 1.x parser used a "namespace" property, while 4.x uses "collection"
/** @internal */
get namespace(): string {
return this.collection;
}
set namespace(value: string) {
this.collection = value;
}
toJSON(): DBRefLike & Document {
const o = Object.assign(
{
$ref: this.collection,
$id: this.oid
},
this.fields
);
if (this.db != null) o.$db = this.db;
return o;
}
/** @internal */
toExtendedJSON(options?: EJSONOptions): DBRefLike {
options = options || {};
let o: DBRefLike = {
$ref: this.collection,
$id: this.oid
};
if (options.legacy) {
return o;
}
if (this.db) o.$db = this.db;
o = Object.assign(o, this.fields);
return o;
}
/** @internal */
static fromExtendedJSON(doc: DBRefLike): DBRef {
const copy = Object.assign({}, doc) as Partial<DBRefLike>;
delete copy.$ref;
delete copy.$id;
delete copy.$db;
return new DBRef(doc.$ref, doc.$id, doc.$db, copy);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
// NOTE: if OID is an ObjectId class it will just print the oid string.
const oid =
this.oid === undefined || this.oid.toString === undefined ? this.oid : this.oid.toString();
return `new DBRef("${this.namespace}", new ObjectId("${String(oid)}")${
this.db ? `, "${this.db}"` : ''
})`;
}
}

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import { BSONValue } from './bson_value';
import { BSONError } from './error';
import { Long } from './long';
import { isUint8Array } from './parser/utils';
import { ByteUtils } from './utils/byte_utils';
const PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;
const PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;
const PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;
const EXPONENT_MAX = 6111;
const EXPONENT_MIN = -6176;
const EXPONENT_BIAS = 6176;
const MAX_DIGITS = 34;
// Nan value bits as 32 bit values (due to lack of longs)
const NAN_BUFFER = ByteUtils.fromNumberArray(
[
0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
].reverse()
);
// Infinity value bits 32 bit values (due to lack of longs)
const INF_NEGATIVE_BUFFER = ByteUtils.fromNumberArray(
[
0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
].reverse()
);
const INF_POSITIVE_BUFFER = ByteUtils.fromNumberArray(
[
0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
].reverse()
);
const EXPONENT_REGEX = /^([-+])?(\d+)?$/;
// Extract least significant 5 bits
const COMBINATION_MASK = 0x1f;
// Extract least significant 14 bits
const EXPONENT_MASK = 0x3fff;
// Value of combination field for Inf
const COMBINATION_INFINITY = 30;
// Value of combination field for NaN
const COMBINATION_NAN = 31;
// Detect if the value is a digit
function isDigit(value: string): boolean {
return !isNaN(parseInt(value, 10));
}
// Divide two uint128 values
function divideu128(value: { parts: [number, number, number, number] }) {
const DIVISOR = Long.fromNumber(1000 * 1000 * 1000);
let _rem = Long.fromNumber(0);
if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {
return { quotient: value, rem: _rem };
}
for (let i = 0; i <= 3; i++) {
// Adjust remainder to match value of next dividend
_rem = _rem.shiftLeft(32);
// Add the divided to _rem
_rem = _rem.add(new Long(value.parts[i], 0));
value.parts[i] = _rem.div(DIVISOR).low;
_rem = _rem.modulo(DIVISOR);
}
return { quotient: value, rem: _rem };
}
// Multiply two Long values and return the 128 bit value
function multiply64x2(left: Long, right: Long): { high: Long; low: Long } {
if (!left && !right) {
return { high: Long.fromNumber(0), low: Long.fromNumber(0) };
}
const leftHigh = left.shiftRightUnsigned(32);
const leftLow = new Long(left.getLowBits(), 0);
const rightHigh = right.shiftRightUnsigned(32);
const rightLow = new Long(right.getLowBits(), 0);
let productHigh = leftHigh.multiply(rightHigh);
let productMid = leftHigh.multiply(rightLow);
const productMid2 = leftLow.multiply(rightHigh);
let productLow = leftLow.multiply(rightLow);
productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
productMid = new Long(productMid.getLowBits(), 0)
.add(productMid2)
.add(productLow.shiftRightUnsigned(32));
productHigh = productHigh.add(productMid.shiftRightUnsigned(32));
productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));
// Return the 128 bit result
return { high: productHigh, low: productLow };
}
function lessThan(left: Long, right: Long): boolean {
// Make values unsigned
const uhleft = left.high >>> 0;
const uhright = right.high >>> 0;
// Compare high bits first
if (uhleft < uhright) {
return true;
} else if (uhleft === uhright) {
const ulleft = left.low >>> 0;
const ulright = right.low >>> 0;
if (ulleft < ulright) return true;
}
return false;
}
function invalidErr(string: string, message: string) {
throw new BSONError(`"${string}" is not a valid Decimal128 string - ${message}`);
}
/** @public */
export interface Decimal128Extended {
$numberDecimal: string;
}
/**
* A class representation of the BSON Decimal128 type.
* @public
* @category BSONType
*/
export class Decimal128 extends BSONValue {
get _bsontype(): 'Decimal128' {
return 'Decimal128';
}
readonly bytes!: Uint8Array;
/**
* @param bytes - a buffer containing the raw Decimal128 bytes in little endian order,
* or a string representation as returned by .toString()
*/
constructor(bytes: Uint8Array | string) {
super();
if (typeof bytes === 'string') {
this.bytes = Decimal128.fromString(bytes).bytes;
} else if (isUint8Array(bytes)) {
if (bytes.byteLength !== 16) {
throw new BSONError('Decimal128 must take a Buffer of 16 bytes');
}
this.bytes = bytes;
} else {
throw new BSONError('Decimal128 must take a Buffer or string');
}
}
/**
* Create a Decimal128 instance from a string representation
*
* @param representation - a numeric string representation.
*/
static fromString(representation: string): Decimal128 {
// Parse state tracking
let isNegative = false;
let sawRadix = false;
let foundNonZero = false;
// Total number of significant digits (no leading or trailing zero)
let significantDigits = 0;
// Total number of significand digits read
let nDigitsRead = 0;
// Total number of digits (no leading zeros)
let nDigits = 0;
// The number of the digits after radix
let radixPosition = 0;
// The index of the first non-zero in *str*
let firstNonZero = 0;
// Digits Array
const digits = [0];
// The number of digits in digits
let nDigitsStored = 0;
// Insertion pointer for digits
let digitsInsert = 0;
// The index of the first non-zero digit
let firstDigit = 0;
// The index of the last digit
let lastDigit = 0;
// Exponent
let exponent = 0;
// loop index over array
let i = 0;
// The high 17 digits of the significand
let significandHigh = new Long(0, 0);
// The low 17 digits of the significand
let significandLow = new Long(0, 0);
// The biased exponent
let biasedExponent = 0;
// Read index
let index = 0;
// Naively prevent against REDOS attacks.
// TODO: implementing a custom parsing for this, or refactoring the regex would yield
// further gains.
if (representation.length >= 7000) {
throw new BSONError('' + representation + ' not a valid Decimal128 string');
}
// Results
const stringMatch = representation.match(PARSE_STRING_REGEXP);
const infMatch = representation.match(PARSE_INF_REGEXP);
const nanMatch = representation.match(PARSE_NAN_REGEXP);
// Validate the string
if ((!stringMatch && !infMatch && !nanMatch) || representation.length === 0) {
throw new BSONError('' + representation + ' not a valid Decimal128 string');
}
if (stringMatch) {
// full_match = stringMatch[0]
// sign = stringMatch[1]
const unsignedNumber = stringMatch[2];
// stringMatch[3] is undefined if a whole number (ex "1", 12")
// but defined if a number w/ decimal in it (ex "1.0, 12.2")
const e = stringMatch[4];
const expSign = stringMatch[5];
const expNumber = stringMatch[6];
// they provided e, but didn't give an exponent number. for ex "1e"
if (e && expNumber === undefined) invalidErr(representation, 'missing exponent power');
// they provided e, but didn't give a number before it. for ex "e1"
if (e && unsignedNumber === undefined) invalidErr(representation, 'missing exponent base');
if (e === undefined && (expSign || expNumber)) {
invalidErr(representation, 'missing e before exponent');
}
}
// Get the negative or positive sign
if (representation[index] === '+' || representation[index] === '-') {
isNegative = representation[index++] === '-';
}
// Check if user passed Infinity or NaN
if (!isDigit(representation[index]) && representation[index] !== '.') {
if (representation[index] === 'i' || representation[index] === 'I') {
return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
} else if (representation[index] === 'N') {
return new Decimal128(NAN_BUFFER);
}
}
// Read all the digits
while (isDigit(representation[index]) || representation[index] === '.') {
if (representation[index] === '.') {
if (sawRadix) invalidErr(representation, 'contains multiple periods');
sawRadix = true;
index = index + 1;
continue;
}
if (nDigitsStored < 34) {
if (representation[index] !== '0' || foundNonZero) {
if (!foundNonZero) {
firstNonZero = nDigitsRead;
}
foundNonZero = true;
// Only store 34 digits
digits[digitsInsert++] = parseInt(representation[index], 10);
nDigitsStored = nDigitsStored + 1;
}
}
if (foundNonZero) nDigits = nDigits + 1;
if (sawRadix) radixPosition = radixPosition + 1;
nDigitsRead = nDigitsRead + 1;
index = index + 1;
}
if (sawRadix && !nDigitsRead)
throw new BSONError('' + representation + ' not a valid Decimal128 string');
// Read exponent if exists
if (representation[index] === 'e' || representation[index] === 'E') {
// Read exponent digits
const match = representation.substr(++index).match(EXPONENT_REGEX);
// No digits read
if (!match || !match[2]) return new Decimal128(NAN_BUFFER);
// Get exponent
exponent = parseInt(match[0], 10);
// Adjust the index
index = index + match[0].length;
}
// Return not a number
if (representation[index]) return new Decimal128(NAN_BUFFER);
// Done reading input
// Find first non-zero digit in digits
firstDigit = 0;
if (!nDigitsStored) {
firstDigit = 0;
lastDigit = 0;
digits[0] = 0;
nDigits = 1;
nDigitsStored = 1;
significantDigits = 0;
} else {
lastDigit = nDigitsStored - 1;
significantDigits = nDigits;
if (significantDigits !== 1) {
while (digits[firstNonZero + significantDigits - 1] === 0) {
significantDigits = significantDigits - 1;
}
}
}
// Normalization of exponent
// Correct exponent based on radix position, and shift significand as needed
// to represent user input
// Overflow prevention
if (exponent <= radixPosition && radixPosition - exponent > 1 << 14) {
exponent = EXPONENT_MIN;
} else {
exponent = exponent - radixPosition;
}
// Attempt to normalize the exponent
while (exponent > EXPONENT_MAX) {
// Shift exponent to significand and decrease
lastDigit = lastDigit + 1;
if (lastDigit - firstDigit > MAX_DIGITS) {
// Check if we have a zero then just hard clamp, otherwise fail
const digitsString = digits.join('');
if (digitsString.match(/^0+$/)) {
exponent = EXPONENT_MAX;
break;
}
invalidErr(representation, 'overflow');
}
exponent = exponent - 1;
}
while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {
// Shift last digit. can only do this if < significant digits than # stored.
if (lastDigit === 0 && significantDigits < nDigitsStored) {
exponent = EXPONENT_MIN;
significantDigits = 0;
break;
}
if (nDigitsStored < nDigits) {
// adjust to match digits not stored
nDigits = nDigits - 1;
} else {
// adjust to round
lastDigit = lastDigit - 1;
}
if (exponent < EXPONENT_MAX) {
exponent = exponent + 1;
} else {
// Check if we have a zero then just hard clamp, otherwise fail
const digitsString = digits.join('');
if (digitsString.match(/^0+$/)) {
exponent = EXPONENT_MAX;
break;
}
invalidErr(representation, 'overflow');
}
}
// Round
// We've normalized the exponent, but might still need to round.
if (lastDigit - firstDigit + 1 < significantDigits) {
let endOfString = nDigitsRead;
// If we have seen a radix point, 'string' is 1 longer than we have
// documented with ndigits_read, so inc the position of the first nonzero
// digit and the position that digits are read to.
if (sawRadix) {
firstNonZero = firstNonZero + 1;
endOfString = endOfString + 1;
}
// if negative, we need to increment again to account for - sign at start.
if (isNegative) {
firstNonZero = firstNonZero + 1;
endOfString = endOfString + 1;
}
const roundDigit = parseInt(representation[firstNonZero + lastDigit + 1], 10);
let roundBit = 0;
if (roundDigit >= 5) {
roundBit = 1;
if (roundDigit === 5) {
roundBit = digits[lastDigit] % 2 === 1 ? 1 : 0;
for (i = firstNonZero + lastDigit + 2; i < endOfString; i++) {
if (parseInt(representation[i], 10)) {
roundBit = 1;
break;
}
}
}
}
if (roundBit) {
let dIdx = lastDigit;
for (; dIdx >= 0; dIdx--) {
if (++digits[dIdx] > 9) {
digits[dIdx] = 0;
// overflowed most significant digit
if (dIdx === 0) {
if (exponent < EXPONENT_MAX) {
exponent = exponent + 1;
digits[dIdx] = 1;
} else {
return new Decimal128(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER);
}
}
}
}
}
}
// Encode significand
// The high 17 digits of the significand
significandHigh = Long.fromNumber(0);
// The low 17 digits of the significand
significandLow = Long.fromNumber(0);
// read a zero
if (significantDigits === 0) {
significandHigh = Long.fromNumber(0);
significandLow = Long.fromNumber(0);
} else if (lastDigit - firstDigit < 17) {
let dIdx = firstDigit;
significandLow = Long.fromNumber(digits[dIdx++]);
significandHigh = new Long(0, 0);
for (; dIdx <= lastDigit; dIdx++) {
significandLow = significandLow.multiply(Long.fromNumber(10));
significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
}
} else {
let dIdx = firstDigit;
significandHigh = Long.fromNumber(digits[dIdx++]);
for (; dIdx <= lastDigit - 17; dIdx++) {
significandHigh = significandHigh.multiply(Long.fromNumber(10));
significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));
}
significandLow = Long.fromNumber(digits[dIdx++]);
for (; dIdx <= lastDigit; dIdx++) {
significandLow = significandLow.multiply(Long.fromNumber(10));
significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));
}
}
const significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));
significand.low = significand.low.add(significandLow);
if (lessThan(significand.low, significandLow)) {
significand.high = significand.high.add(Long.fromNumber(1));
}
// Biased exponent
biasedExponent = exponent + EXPONENT_BIAS;
const dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };
// Encode combination, exponent, and significand.
if (
significand.high.shiftRightUnsigned(49).and(Long.fromNumber(1)).equals(Long.fromNumber(1))
) {
// Encode '11' into bits 1 to 3
dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));
dec.high = dec.high.or(
Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))
);
dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));
} else {
dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));
dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));
}
dec.low = significand.low;
// Encode sign
if (isNegative) {
dec.high = dec.high.or(Long.fromString('9223372036854775808'));
}
// Encode into a buffer
const buffer = ByteUtils.allocate(16);
index = 0;
// Encode the low 64 bits of the decimal
// Encode low bits
buffer[index++] = dec.low.low & 0xff;
buffer[index++] = (dec.low.low >> 8) & 0xff;
buffer[index++] = (dec.low.low >> 16) & 0xff;
buffer[index++] = (dec.low.low >> 24) & 0xff;
// Encode high bits
buffer[index++] = dec.low.high & 0xff;
buffer[index++] = (dec.low.high >> 8) & 0xff;
buffer[index++] = (dec.low.high >> 16) & 0xff;
buffer[index++] = (dec.low.high >> 24) & 0xff;
// Encode the high 64 bits of the decimal
// Encode low bits
buffer[index++] = dec.high.low & 0xff;
buffer[index++] = (dec.high.low >> 8) & 0xff;
buffer[index++] = (dec.high.low >> 16) & 0xff;
buffer[index++] = (dec.high.low >> 24) & 0xff;
// Encode high bits
buffer[index++] = dec.high.high & 0xff;
buffer[index++] = (dec.high.high >> 8) & 0xff;
buffer[index++] = (dec.high.high >> 16) & 0xff;
buffer[index++] = (dec.high.high >> 24) & 0xff;
// Return the new Decimal128
return new Decimal128(buffer);
}
/** Create a string representation of the raw Decimal128 value */
toString(): string {
// Note: bits in this routine are referred to starting at 0,
// from the sign bit, towards the coefficient.
// decoded biased exponent (14 bits)
let biased_exponent;
// the number of significand digits
let significand_digits = 0;
// the base-10 digits in the significand
const significand = new Array<number>(36);
for (let i = 0; i < significand.length; i++) significand[i] = 0;
// read pointer into significand
let index = 0;
// true if the number is zero
let is_zero = false;
// the most significant significand bits (50-46)
let significand_msb;
// temporary storage for significand decoding
let significand128: { parts: [number, number, number, number] } = { parts: [0, 0, 0, 0] };
// indexing variables
let j, k;
// Output string
const string: string[] = [];
// Unpack index
index = 0;
// Buffer reference
const buffer = this.bytes;
// Unpack the low 64bits into a long
// bits 96 - 127
const low =
buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
// bits 64 - 95
const midl =
buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
// Unpack the high 64bits into a long
// bits 32 - 63
const midh =
buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
// bits 0 - 31
const high =
buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
// Unpack index
index = 0;
// Create the state of the decimal
const dec = {
low: new Long(low, midl),
high: new Long(midh, high)
};
if (dec.high.lessThan(Long.ZERO)) {
string.push('-');
}
// Decode combination field and exponent
// bits 1 - 5
const combination = (high >> 26) & COMBINATION_MASK;
if (combination >> 3 === 3) {
// Check for 'special' values
if (combination === COMBINATION_INFINITY) {
return string.join('') + 'Infinity';
} else if (combination === COMBINATION_NAN) {
return 'NaN';
} else {
biased_exponent = (high >> 15) & EXPONENT_MASK;
significand_msb = 0x08 + ((high >> 14) & 0x01);
}
} else {
significand_msb = (high >> 14) & 0x07;
biased_exponent = (high >> 17) & EXPONENT_MASK;
}
// unbiased exponent
const exponent = biased_exponent - EXPONENT_BIAS;
// Create string of significand digits
// Convert the 114-bit binary number represented by
// (significand_high, significand_low) to at most 34 decimal
// digits through modulo and division.
significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);
significand128.parts[1] = midh;
significand128.parts[2] = midl;
significand128.parts[3] = low;
if (
significand128.parts[0] === 0 &&
significand128.parts[1] === 0 &&
significand128.parts[2] === 0 &&
significand128.parts[3] === 0
) {
is_zero = true;
} else {
for (k = 3; k >= 0; k--) {
let least_digits = 0;
// Perform the divide
const result = divideu128(significand128);
significand128 = result.quotient;
least_digits = result.rem.low;
// We now have the 9 least significant digits (in base 2).
// Convert and output to string.
if (!least_digits) continue;
for (j = 8; j >= 0; j--) {
// significand[k * 9 + j] = Math.round(least_digits % 10);
significand[k * 9 + j] = least_digits % 10;
// least_digits = Math.round(least_digits / 10);
least_digits = Math.floor(least_digits / 10);
}
}
}
// Output format options:
// Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd
// Regular - ddd.ddd
if (is_zero) {
significand_digits = 1;
significand[index] = 0;
} else {
significand_digits = 36;
while (!significand[index]) {
significand_digits = significand_digits - 1;
index = index + 1;
}
}
// the exponent if scientific notation is used
const scientific_exponent = significand_digits - 1 + exponent;
// The scientific exponent checks are dictated by the string conversion
// specification and are somewhat arbitrary cutoffs.
//
// We must check exponent > 0, because if this is the case, the number
// has trailing zeros. However, we *cannot* output these trailing zeros,
// because doing so would change the precision of the value, and would
// change stored data if the string converted number is round tripped.
if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {
// Scientific format
// if there are too many significant digits, we should just be treating numbers
// as + or - 0 and using the non-scientific exponent (this is for the "invalid
// representation should be treated as 0/-0" spec cases in decimal128-1.json)
if (significand_digits > 34) {
string.push(`${0}`);
if (exponent > 0) string.push(`E+${exponent}`);
else if (exponent < 0) string.push(`E${exponent}`);
return string.join('');
}
string.push(`${significand[index++]}`);
significand_digits = significand_digits - 1;
if (significand_digits) {
string.push('.');
}
for (let i = 0; i < significand_digits; i++) {
string.push(`${significand[index++]}`);
}
// Exponent
string.push('E');
if (scientific_exponent > 0) {
string.push(`+${scientific_exponent}`);
} else {
string.push(`${scientific_exponent}`);
}
} else {
// Regular format with no decimal place
if (exponent >= 0) {
for (let i = 0; i < significand_digits; i++) {
string.push(`${significand[index++]}`);
}
} else {
let radix_position = significand_digits + exponent;
// non-zero digits before radix
if (radix_position > 0) {
for (let i = 0; i < radix_position; i++) {
string.push(`${significand[index++]}`);
}
} else {
string.push('0');
}
string.push('.');
// add leading zeros after radix
while (radix_position++ < 0) {
string.push('0');
}
for (let i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {
string.push(`${significand[index++]}`);
}
}
}
return string.join('');
}
toJSON(): Decimal128Extended {
return { $numberDecimal: this.toString() };
}
/** @internal */
toExtendedJSON(): Decimal128Extended {
return { $numberDecimal: this.toString() };
}
/** @internal */
static fromExtendedJSON(doc: Decimal128Extended): Decimal128 {
return Decimal128.fromString(doc.$numberDecimal);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new Decimal128("${this.toString()}")`;
}
}

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import { BSONValue } from './bson_value';
import type { EJSONOptions } from './extended_json';
/** @public */
export interface DoubleExtended {
$numberDouble: string;
}
/**
* A class representation of the BSON Double type.
* @public
* @category BSONType
*/
export class Double extends BSONValue {
get _bsontype(): 'Double' {
return 'Double';
}
value!: number;
/**
* Create a Double type
*
* @param value - the number we want to represent as a double.
*/
constructor(value: number) {
super();
if ((value as unknown) instanceof Number) {
value = value.valueOf();
}
this.value = +value;
}
/**
* Access the number value.
*
* @returns returns the wrapped double number.
*/
valueOf(): number {
return this.value;
}
toJSON(): number {
return this.value;
}
toString(radix?: number): string {
return this.value.toString(radix);
}
/** @internal */
toExtendedJSON(options?: EJSONOptions): number | DoubleExtended {
if (options && (options.legacy || (options.relaxed && isFinite(this.value)))) {
return this.value;
}
if (Object.is(Math.sign(this.value), -0)) {
// NOTE: JavaScript has +0 and -0, apparently to model limit calculations. If a user
// explicitly provided `-0` then we need to ensure the sign makes it into the output
return { $numberDouble: '-0.0' };
}
return {
$numberDouble: Number.isInteger(this.value) ? this.value.toFixed(1) : this.value.toString()
};
}
/** @internal */
static fromExtendedJSON(doc: DoubleExtended, options?: EJSONOptions): number | Double {
const doubleValue = parseFloat(doc.$numberDouble);
return options && options.relaxed ? doubleValue : new Double(doubleValue);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
const eJSON = this.toExtendedJSON() as DoubleExtended;
return `new Double(${eJSON.$numberDouble})`;
}
}

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import { BSON_MAJOR_VERSION } from './constants';
/**
* @public
* @category Error
*
* `BSONError` objects are thrown when BSON ecounters an error.
*
* This is the parent class for all the other errors thrown by this library.
*/
export class BSONError extends Error {
/**
* @internal
* The underlying algorithm for isBSONError may change to improve how strict it is
* about determining if an input is a BSONError. But it must remain backwards compatible
* with previous minors & patches of the current major version.
*/
protected get bsonError(): true {
return true;
}
override get name(): string {
return 'BSONError';
}
constructor(message: string) {
super(message);
}
/**
* @public
*
* All errors thrown from the BSON library inherit from `BSONError`.
* This method can assist with determining if an error originates from the BSON library
* even if it does not pass an `instanceof` check against this class' constructor.
*
* @param value - any javascript value that needs type checking
*/
public static isBSONError(value: unknown): value is BSONError {
return (
value != null &&
typeof value === 'object' &&
'bsonError' in value &&
value.bsonError === true &&
// Do not access the following properties, just check existence
'name' in value &&
'message' in value &&
'stack' in value
);
}
}
/**
* @public
* @category Error
*/
export class BSONVersionError extends BSONError {
get name(): 'BSONVersionError' {
return 'BSONVersionError';
}
constructor() {
super(
`Unsupported BSON version, bson types must be from bson ${BSON_MAJOR_VERSION}.0 or later`
);
}
}
/**
* @public
* @category Error
*
* An error generated when BSON functions encounter an unexpected input
* or reaches an unexpected/invalid internal state
*
*/
export class BSONRuntimeError extends BSONError {
get name(): 'BSONRuntimeError' {
return 'BSONRuntimeError';
}
constructor(message: string) {
super(message);
}
}

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import { Binary } from './binary';
import type { Document } from './bson';
import { Code } from './code';
import {
BSON_INT32_MAX,
BSON_INT32_MIN,
BSON_INT64_MAX,
BSON_INT64_MIN,
BSON_MAJOR_VERSION
} from './constants';
import { DBRef, isDBRefLike } from './db_ref';
import { Decimal128 } from './decimal128';
import { Double } from './double';
import { BSONError, BSONRuntimeError, BSONVersionError } from './error';
import { Int32 } from './int_32';
import { Long } from './long';
import { MaxKey } from './max_key';
import { MinKey } from './min_key';
import { ObjectId } from './objectid';
import { isDate, isRegExp, isMap } from './parser/utils';
import { BSONRegExp } from './regexp';
import { BSONSymbol } from './symbol';
import { Timestamp } from './timestamp';
/** @public */
export type EJSONOptions = {
/**
* Output using the Extended JSON v1 spec
* @defaultValue `false`
*/
legacy?: boolean;
/**
* Enable Extended JSON's `relaxed` mode, which attempts to return native JS types where possible, rather than BSON types
* @defaultValue `false` */
relaxed?: boolean;
/**
* Enable native bigint support
* @defaultValue `false`
*/
useBigInt64?: boolean;
};
/** @internal */
type BSONType =
| Binary
| Code
| DBRef
| Decimal128
| Double
| Int32
| Long
| MaxKey
| MinKey
| ObjectId
| BSONRegExp
| BSONSymbol
| Timestamp;
function isBSONType(value: unknown): value is BSONType {
return (
value != null &&
typeof value === 'object' &&
'_bsontype' in value &&
typeof value._bsontype === 'string'
);
}
// all the types where we don't need to do any special processing and can just pass the EJSON
//straight to type.fromExtendedJSON
const keysToCodecs = {
$oid: ObjectId,
$binary: Binary,
$uuid: Binary,
$symbol: BSONSymbol,
$numberInt: Int32,
$numberDecimal: Decimal128,
$numberDouble: Double,
$numberLong: Long,
$minKey: MinKey,
$maxKey: MaxKey,
$regex: BSONRegExp,
$regularExpression: BSONRegExp,
$timestamp: Timestamp
} as const;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function deserializeValue(value: any, options: EJSONOptions = {}) {
if (typeof value === 'number') {
// TODO(NODE-4377): EJSON js number handling diverges from BSON
const in32BitRange = value <= BSON_INT32_MAX && value >= BSON_INT32_MIN;
const in64BitRange = value <= BSON_INT64_MAX && value >= BSON_INT64_MIN;
if (options.relaxed || options.legacy) {
return value;
}
if (Number.isInteger(value) && !Object.is(value, -0)) {
// interpret as being of the smallest BSON integer type that can represent the number exactly
if (in32BitRange) {
return new Int32(value);
}
if (in64BitRange) {
if (options.useBigInt64) {
// eslint-disable-next-line no-restricted-globals -- This is allowed here as useBigInt64=true
return BigInt(value);
}
return Long.fromNumber(value);
}
}
// If the number is a non-integer or out of integer range, should interpret as BSON Double.
return new Double(value);
}
// from here on out we're looking for bson types, so bail if its not an object
if (value == null || typeof value !== 'object') return value;
// upgrade deprecated undefined to null
if (value.$undefined) return null;
const keys = Object.keys(value).filter(
k => k.startsWith('$') && value[k] != null
) as (keyof typeof keysToCodecs)[];
for (let i = 0; i < keys.length; i++) {
const c = keysToCodecs[keys[i]];
if (c) return c.fromExtendedJSON(value, options);
}
if (value.$date != null) {
const d = value.$date;
const date = new Date();
if (options.legacy) {
if (typeof d === 'number') date.setTime(d);
else if (typeof d === 'string') date.setTime(Date.parse(d));
else if (typeof d === 'bigint') date.setTime(Number(d));
else throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
} else {
if (typeof d === 'string') date.setTime(Date.parse(d));
else if (Long.isLong(d)) date.setTime(d.toNumber());
else if (typeof d === 'number' && options.relaxed) date.setTime(d);
else if (typeof d === 'bigint') date.setTime(Number(d));
else throw new BSONRuntimeError(`Unrecognized type for EJSON date: ${typeof d}`);
}
return date;
}
if (value.$code != null) {
const copy = Object.assign({}, value);
if (value.$scope) {
copy.$scope = deserializeValue(value.$scope);
}
return Code.fromExtendedJSON(value);
}
if (isDBRefLike(value) || value.$dbPointer) {
const v = value.$ref ? value : value.$dbPointer;
// we run into this in a "degenerate EJSON" case (with $id and $ref order flipped)
// because of the order JSON.parse goes through the document
if (v instanceof DBRef) return v;
const dollarKeys = Object.keys(v).filter(k => k.startsWith('$'));
let valid = true;
dollarKeys.forEach(k => {
if (['$ref', '$id', '$db'].indexOf(k) === -1) valid = false;
});
// only make DBRef if $ keys are all valid
if (valid) return DBRef.fromExtendedJSON(v);
}
return value;
}
type EJSONSerializeOptions = EJSONOptions & {
seenObjects: { obj: unknown; propertyName: string }[];
};
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function serializeArray(array: any[], options: EJSONSerializeOptions): any[] {
return array.map((v: unknown, index: number) => {
options.seenObjects.push({ propertyName: `index ${index}`, obj: null });
try {
return serializeValue(v, options);
} finally {
options.seenObjects.pop();
}
});
}
function getISOString(date: Date) {
const isoStr = date.toISOString();
// we should only show milliseconds in timestamp if they're non-zero
return date.getUTCMilliseconds() !== 0 ? isoStr : isoStr.slice(0, -5) + 'Z';
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function serializeValue(value: any, options: EJSONSerializeOptions): any {
if (value instanceof Map || isMap(value)) {
const obj: Record<string, unknown> = Object.create(null);
for (const [k, v] of value) {
if (typeof k !== 'string') {
throw new BSONError('Can only serialize maps with string keys');
}
obj[k] = v;
}
return serializeValue(obj, options);
}
if ((typeof value === 'object' || typeof value === 'function') && value !== null) {
const index = options.seenObjects.findIndex(entry => entry.obj === value);
if (index !== -1) {
const props = options.seenObjects.map(entry => entry.propertyName);
const leadingPart = props
.slice(0, index)
.map(prop => `${prop} -> `)
.join('');
const alreadySeen = props[index];
const circularPart =
' -> ' +
props
.slice(index + 1, props.length - 1)
.map(prop => `${prop} -> `)
.join('');
const current = props[props.length - 1];
const leadingSpace = ' '.repeat(leadingPart.length + alreadySeen.length / 2);
const dashes = '-'.repeat(
circularPart.length + (alreadySeen.length + current.length) / 2 - 1
);
throw new BSONError(
'Converting circular structure to EJSON:\n' +
` ${leadingPart}${alreadySeen}${circularPart}${current}\n` +
` ${leadingSpace}\\${dashes}/`
);
}
options.seenObjects[options.seenObjects.length - 1].obj = value;
}
if (Array.isArray(value)) return serializeArray(value, options);
if (value === undefined) return null;
if (value instanceof Date || isDate(value)) {
const dateNum = value.getTime(),
// is it in year range 1970-9999?
inRange = dateNum > -1 && dateNum < 253402318800000;
if (options.legacy) {
return options.relaxed && inRange
? { $date: value.getTime() }
: { $date: getISOString(value) };
}
return options.relaxed && inRange
? { $date: getISOString(value) }
: { $date: { $numberLong: value.getTime().toString() } };
}
if (typeof value === 'number' && (!options.relaxed || !isFinite(value))) {
if (Number.isInteger(value) && !Object.is(value, -0)) {
// interpret as being of the smallest BSON integer type that can represent the number exactly
if (value >= BSON_INT32_MIN && value <= BSON_INT32_MAX) {
return { $numberInt: value.toString() };
}
if (value >= BSON_INT64_MIN && value <= BSON_INT64_MAX) {
// TODO(NODE-4377): EJSON js number handling diverges from BSON
return { $numberLong: value.toString() };
}
}
return { $numberDouble: Object.is(value, -0) ? '-0.0' : value.toString() };
}
if (typeof value === 'bigint') {
/* eslint-disable no-restricted-globals -- This is allowed as we are accepting a bigint as input */
if (!options.relaxed) {
return { $numberLong: BigInt.asIntN(64, value).toString() };
}
return Number(BigInt.asIntN(64, value));
/* eslint-enable */
}
if (value instanceof RegExp || isRegExp(value)) {
let flags = value.flags;
if (flags === undefined) {
const match = value.toString().match(/[gimuy]*$/);
if (match) {
flags = match[0];
}
}
const rx = new BSONRegExp(value.source, flags);
return rx.toExtendedJSON(options);
}
if (value != null && typeof value === 'object') return serializeDocument(value, options);
return value;
}
const BSON_TYPE_MAPPINGS = {
Binary: (o: Binary) => new Binary(o.value(), o.sub_type),
Code: (o: Code) => new Code(o.code, o.scope),
DBRef: (o: DBRef) => new DBRef(o.collection || o.namespace, o.oid, o.db, o.fields), // "namespace" for 1.x library backwards compat
Decimal128: (o: Decimal128) => new Decimal128(o.bytes),
Double: (o: Double) => new Double(o.value),
Int32: (o: Int32) => new Int32(o.value),
Long: (
o: Long & {
low_: number;
high_: number;
unsigned_: boolean | undefined;
}
) =>
Long.fromBits(
// underscore variants for 1.x backwards compatibility
o.low != null ? o.low : o.low_,
o.low != null ? o.high : o.high_,
o.low != null ? o.unsigned : o.unsigned_
),
MaxKey: () => new MaxKey(),
MinKey: () => new MinKey(),
ObjectId: (o: ObjectId) => new ObjectId(o),
BSONRegExp: (o: BSONRegExp) => new BSONRegExp(o.pattern, o.options),
BSONSymbol: (o: BSONSymbol) => new BSONSymbol(o.value),
Timestamp: (o: Timestamp) => Timestamp.fromBits(o.low, o.high)
} as const;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function serializeDocument(doc: any, options: EJSONSerializeOptions) {
if (doc == null || typeof doc !== 'object') throw new BSONError('not an object instance');
const bsontype: BSONType['_bsontype'] = doc._bsontype;
if (typeof bsontype === 'undefined') {
// It's a regular object. Recursively serialize its property values.
const _doc: Document = {};
for (const name of Object.keys(doc)) {
options.seenObjects.push({ propertyName: name, obj: null });
try {
const value = serializeValue(doc[name], options);
if (name === '__proto__') {
Object.defineProperty(_doc, name, {
value,
writable: true,
enumerable: true,
configurable: true
});
} else {
_doc[name] = value;
}
} finally {
options.seenObjects.pop();
}
}
return _doc;
} else if (
doc != null &&
typeof doc === 'object' &&
typeof doc._bsontype === 'string' &&
doc[Symbol.for('@@mdb.bson.version')] !== BSON_MAJOR_VERSION
) {
throw new BSONVersionError();
} else if (isBSONType(doc)) {
// the "document" is really just a BSON type object
// eslint-disable-next-line @typescript-eslint/no-explicit-any
let outDoc: any = doc;
if (typeof outDoc.toExtendedJSON !== 'function') {
// There's no EJSON serialization function on the object. It's probably an
// object created by a previous version of this library (or another library)
// that's duck-typing objects to look like they were generated by this library).
// Copy the object into this library's version of that type.
const mapper = BSON_TYPE_MAPPINGS[doc._bsontype];
if (!mapper) {
throw new BSONError('Unrecognized or invalid _bsontype: ' + doc._bsontype);
}
outDoc = mapper(outDoc);
}
// Two BSON types may have nested objects that may need to be serialized too
if (bsontype === 'Code' && outDoc.scope) {
outDoc = new Code(outDoc.code, serializeValue(outDoc.scope, options));
} else if (bsontype === 'DBRef' && outDoc.oid) {
outDoc = new DBRef(
serializeValue(outDoc.collection, options),
serializeValue(outDoc.oid, options),
serializeValue(outDoc.db, options),
serializeValue(outDoc.fields, options)
);
}
return outDoc.toExtendedJSON(options);
} else {
throw new BSONError('_bsontype must be a string, but was: ' + typeof bsontype);
}
}
/**
* Parse an Extended JSON string, constructing the JavaScript value or object described by that
* string.
*
* @example
* ```js
* const { EJSON } = require('bson');
* const text = '{ "int32": { "$numberInt": "10" } }';
*
* // prints { int32: { [String: '10'] _bsontype: 'Int32', value: '10' } }
* console.log(EJSON.parse(text, { relaxed: false }));
*
* // prints { int32: 10 }
* console.log(EJSON.parse(text));
* ```
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function parse(text: string, options?: EJSONOptions): any {
const ejsonOptions = {
useBigInt64: options?.useBigInt64 ?? false,
relaxed: options?.relaxed ?? true,
legacy: options?.legacy ?? false
};
return JSON.parse(text, (key, value) => {
if (key.indexOf('\x00') !== -1) {
throw new BSONError(
`BSON Document field names cannot contain null bytes, found: ${JSON.stringify(key)}`
);
}
return deserializeValue(value, ejsonOptions);
});
}
/**
* Converts a BSON document to an Extended JSON string, optionally replacing values if a replacer
* function is specified or optionally including only the specified properties if a replacer array
* is specified.
*
* @param value - The value to convert to extended JSON
* @param replacer - A function that alters the behavior of the stringification process, or an array of String and Number objects that serve as a whitelist for selecting/filtering the properties of the value object to be included in the JSON string. If this value is null or not provided, all properties of the object are included in the resulting JSON string
* @param space - A String or Number object that's used to insert white space into the output JSON string for readability purposes.
* @param options - Optional settings
*
* @example
* ```js
* const { EJSON } = require('bson');
* const Int32 = require('mongodb').Int32;
* const doc = { int32: new Int32(10) };
*
* // prints '{"int32":{"$numberInt":"10"}}'
* console.log(EJSON.stringify(doc, { relaxed: false }));
*
* // prints '{"int32":10}'
* console.log(EJSON.stringify(doc));
* ```
*/
function stringify(
// eslint-disable-next-line @typescript-eslint/no-explicit-any
value: any,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
replacer?: (number | string)[] | ((this: any, key: string, value: any) => any) | EJSONOptions,
space?: string | number,
options?: EJSONOptions
): string {
if (space != null && typeof space === 'object') {
options = space;
space = 0;
}
if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
options = replacer;
replacer = undefined;
space = 0;
}
const serializeOptions = Object.assign({ relaxed: true, legacy: false }, options, {
seenObjects: [{ propertyName: '(root)', obj: null }]
});
const doc = serializeValue(value, serializeOptions);
return JSON.stringify(doc, replacer as Parameters<JSON['stringify']>[1], space);
}
/**
* Serializes an object to an Extended JSON string, and reparse it as a JavaScript object.
*
* @param value - The object to serialize
* @param options - Optional settings passed to the `stringify` function
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function EJSONserialize(value: any, options?: EJSONOptions): Document {
options = options || {};
return JSON.parse(stringify(value, options));
}
/**
* Deserializes an Extended JSON object into a plain JavaScript object with native/BSON types
*
* @param ejson - The Extended JSON object to deserialize
* @param options - Optional settings passed to the parse method
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function EJSONdeserialize(ejson: Document, options?: EJSONOptions): any {
options = options || {};
return parse(JSON.stringify(ejson), options);
}
/** @public */
const EJSON: {
parse: typeof parse;
stringify: typeof stringify;
serialize: typeof EJSONserialize;
deserialize: typeof EJSONdeserialize;
} = Object.create(null);
EJSON.parse = parse;
EJSON.stringify = stringify;
EJSON.serialize = EJSONserialize;
EJSON.deserialize = EJSONdeserialize;
Object.freeze(EJSON);
export { EJSON };

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import * as BSON from './bson';
// Export all named properties from BSON to support
// import { ObjectId, serialize } from 'bson';
// const { ObjectId, serialize } = require('bson');
export * from './bson';
// Export BSON as a namespace to support:
// import { BSON } from 'bson';
// const { BSON } = require('bson');
export { BSON };
// BSON does **NOT** have a default export
// The following will crash in es module environments
// import BSON from 'bson';
// The following will work as expected, BSON as a namespace of all the APIs (BSON.ObjectId, BSON.serialize)
// const BSON = require('bson');

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VISUALIZACION/node_modules/bson/src/int_32.ts generated vendored Executable file
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import { BSONValue } from './bson_value';
import type { EJSONOptions } from './extended_json';
/** @public */
export interface Int32Extended {
$numberInt: string;
}
/**
* A class representation of a BSON Int32 type.
* @public
* @category BSONType
*/
export class Int32 extends BSONValue {
get _bsontype(): 'Int32' {
return 'Int32';
}
value!: number;
/**
* Create an Int32 type
*
* @param value - the number we want to represent as an int32.
*/
constructor(value: number | string) {
super();
if ((value as unknown) instanceof Number) {
value = value.valueOf();
}
this.value = +value | 0;
}
/**
* Access the number value.
*
* @returns returns the wrapped int32 number.
*/
valueOf(): number {
return this.value;
}
toString(radix?: number): string {
return this.value.toString(radix);
}
toJSON(): number {
return this.value;
}
/** @internal */
toExtendedJSON(options?: EJSONOptions): number | Int32Extended {
if (options && (options.relaxed || options.legacy)) return this.value;
return { $numberInt: this.value.toString() };
}
/** @internal */
static fromExtendedJSON(doc: Int32Extended, options?: EJSONOptions): number | Int32 {
return options && options.relaxed ? parseInt(doc.$numberInt, 10) : new Int32(doc.$numberInt);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new Int32(${this.valueOf()})`;
}
}

1067
VISUALIZACION/node_modules/bson/src/long.ts generated vendored Executable file

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36
VISUALIZACION/node_modules/bson/src/max_key.ts generated vendored Executable file
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import { BSONValue } from './bson_value';
/** @public */
export interface MaxKeyExtended {
$maxKey: 1;
}
/**
* A class representation of the BSON MaxKey type.
* @public
* @category BSONType
*/
export class MaxKey extends BSONValue {
get _bsontype(): 'MaxKey' {
return 'MaxKey';
}
/** @internal */
toExtendedJSON(): MaxKeyExtended {
return { $maxKey: 1 };
}
/** @internal */
static fromExtendedJSON(): MaxKey {
return new MaxKey();
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return 'new MaxKey()';
}
}

36
VISUALIZACION/node_modules/bson/src/min_key.ts generated vendored Executable file
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import { BSONValue } from './bson_value';
/** @public */
export interface MinKeyExtended {
$minKey: 1;
}
/**
* A class representation of the BSON MinKey type.
* @public
* @category BSONType
*/
export class MinKey extends BSONValue {
get _bsontype(): 'MinKey' {
return 'MinKey';
}
/** @internal */
toExtendedJSON(): MinKeyExtended {
return { $minKey: 1 };
}
/** @internal */
static fromExtendedJSON(): MinKey {
return new MinKey();
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return 'new MinKey()';
}
}

323
VISUALIZACION/node_modules/bson/src/objectid.ts generated vendored Executable file
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import { BSONValue } from './bson_value';
import { BSONError } from './error';
import { isUint8Array } from './parser/utils';
import { BSONDataView, ByteUtils } from './utils/byte_utils';
// Regular expression that checks for hex value
const checkForHexRegExp = new RegExp('^[0-9a-fA-F]{24}$');
// Unique sequence for the current process (initialized on first use)
let PROCESS_UNIQUE: Uint8Array | null = null;
/** @public */
export interface ObjectIdLike {
id: string | Uint8Array;
__id?: string;
toHexString(): string;
}
/** @public */
export interface ObjectIdExtended {
$oid: string;
}
const kId = Symbol('id');
/**
* A class representation of the BSON ObjectId type.
* @public
* @category BSONType
*/
export class ObjectId extends BSONValue {
get _bsontype(): 'ObjectId' {
return 'ObjectId';
}
/** @internal */
private static index = Math.floor(Math.random() * 0xffffff);
static cacheHexString: boolean;
/** ObjectId Bytes @internal */
private [kId]!: Uint8Array;
/** ObjectId hexString cache @internal */
private __id?: string;
/**
* Create an ObjectId type
*
* @param inputId - Can be a 24 character hex string, 12 byte binary Buffer, or a number.
*/
constructor(inputId?: string | number | ObjectId | ObjectIdLike | Uint8Array) {
super();
// workingId is set based on type of input and whether valid id exists for the input
let workingId;
if (typeof inputId === 'object' && inputId && 'id' in inputId) {
if (typeof inputId.id !== 'string' && !ArrayBuffer.isView(inputId.id)) {
throw new BSONError('Argument passed in must have an id that is of type string or Buffer');
}
if ('toHexString' in inputId && typeof inputId.toHexString === 'function') {
workingId = ByteUtils.fromHex(inputId.toHexString());
} else {
workingId = inputId.id;
}
} else {
workingId = inputId;
}
// the following cases use workingId to construct an ObjectId
if (workingId == null || typeof workingId === 'number') {
// The most common use case (blank id, new objectId instance)
// Generate a new id
this[kId] = ObjectId.generate(typeof workingId === 'number' ? workingId : undefined);
} else if (ArrayBuffer.isView(workingId) && workingId.byteLength === 12) {
// If intstanceof matches we can escape calling ensure buffer in Node.js environments
this[kId] = ByteUtils.toLocalBufferType(workingId);
} else if (typeof workingId === 'string') {
if (workingId.length === 12) {
// TODO(NODE-4361): Remove string of length 12 support
const bytes = ByteUtils.fromUTF8(workingId);
if (bytes.byteLength === 12) {
this[kId] = bytes;
} else {
throw new BSONError('Argument passed in must be a string of 12 bytes');
}
} else if (workingId.length === 24 && checkForHexRegExp.test(workingId)) {
this[kId] = ByteUtils.fromHex(workingId);
} else {
throw new BSONError(
'Argument passed in must be a string of 12 bytes or a string of 24 hex characters or an integer'
);
}
} else {
throw new BSONError('Argument passed in does not match the accepted types');
}
// If we are caching the hex string
if (ObjectId.cacheHexString) {
this.__id = ByteUtils.toHex(this.id);
}
}
/**
* The ObjectId bytes
* @readonly
*/
get id(): Uint8Array {
return this[kId];
}
set id(value: Uint8Array) {
this[kId] = value;
if (ObjectId.cacheHexString) {
this.__id = ByteUtils.toHex(value);
}
}
/** Returns the ObjectId id as a 24 character hex string representation */
toHexString(): string {
if (ObjectId.cacheHexString && this.__id) {
return this.__id;
}
const hexString = ByteUtils.toHex(this.id);
if (ObjectId.cacheHexString && !this.__id) {
this.__id = hexString;
}
return hexString;
}
/**
* Update the ObjectId index
* @internal
*/
private static getInc(): number {
return (ObjectId.index = (ObjectId.index + 1) % 0xffffff);
}
/**
* Generate a 12 byte id buffer used in ObjectId's
*
* @param time - pass in a second based timestamp.
*/
static generate(time?: number): Uint8Array {
if ('number' !== typeof time) {
time = Math.floor(Date.now() / 1000);
}
const inc = ObjectId.getInc();
const buffer = ByteUtils.allocate(12);
// 4-byte timestamp
BSONDataView.fromUint8Array(buffer).setUint32(0, time, false);
// set PROCESS_UNIQUE if yet not initialized
if (PROCESS_UNIQUE === null) {
PROCESS_UNIQUE = ByteUtils.randomBytes(5);
}
// 5-byte process unique
buffer[4] = PROCESS_UNIQUE[0];
buffer[5] = PROCESS_UNIQUE[1];
buffer[6] = PROCESS_UNIQUE[2];
buffer[7] = PROCESS_UNIQUE[3];
buffer[8] = PROCESS_UNIQUE[4];
// 3-byte counter
buffer[11] = inc & 0xff;
buffer[10] = (inc >> 8) & 0xff;
buffer[9] = (inc >> 16) & 0xff;
return buffer;
}
/**
* Converts the id into a 24 character hex string for printing, unless encoding is provided.
* @param encoding - hex or base64
*/
toString(encoding?: 'hex' | 'base64'): string {
// Is the id a buffer then use the buffer toString method to return the format
if (encoding === 'base64') return ByteUtils.toBase64(this.id);
if (encoding === 'hex') return this.toHexString();
return this.toHexString();
}
/** Converts to its JSON the 24 character hex string representation. */
toJSON(): string {
return this.toHexString();
}
/**
* Compares the equality of this ObjectId with `otherID`.
*
* @param otherId - ObjectId instance to compare against.
*/
equals(otherId: string | ObjectId | ObjectIdLike): boolean {
if (otherId === undefined || otherId === null) {
return false;
}
if (otherId instanceof ObjectId) {
return this[kId][11] === otherId[kId][11] && ByteUtils.equals(this[kId], otherId[kId]);
}
if (
typeof otherId === 'string' &&
ObjectId.isValid(otherId) &&
otherId.length === 12 &&
isUint8Array(this.id)
) {
return ByteUtils.equals(this.id, ByteUtils.fromISO88591(otherId));
}
if (typeof otherId === 'string' && ObjectId.isValid(otherId) && otherId.length === 24) {
return otherId.toLowerCase() === this.toHexString();
}
if (typeof otherId === 'string' && ObjectId.isValid(otherId) && otherId.length === 12) {
return ByteUtils.equals(ByteUtils.fromUTF8(otherId), this.id);
}
if (
typeof otherId === 'object' &&
'toHexString' in otherId &&
typeof otherId.toHexString === 'function'
) {
const otherIdString = otherId.toHexString();
const thisIdString = this.toHexString().toLowerCase();
return typeof otherIdString === 'string' && otherIdString.toLowerCase() === thisIdString;
}
return false;
}
/** Returns the generation date (accurate up to the second) that this ID was generated. */
getTimestamp(): Date {
const timestamp = new Date();
const time = BSONDataView.fromUint8Array(this.id).getUint32(0, false);
timestamp.setTime(Math.floor(time) * 1000);
return timestamp;
}
/** @internal */
static createPk(): ObjectId {
return new ObjectId();
}
/**
* Creates an ObjectId from a second based number, with the rest of the ObjectId zeroed out. Used for comparisons or sorting the ObjectId.
*
* @param time - an integer number representing a number of seconds.
*/
static createFromTime(time: number): ObjectId {
const buffer = ByteUtils.fromNumberArray([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
// Encode time into first 4 bytes
BSONDataView.fromUint8Array(buffer).setUint32(0, time, false);
// Return the new objectId
return new ObjectId(buffer);
}
/**
* Creates an ObjectId from a hex string representation of an ObjectId.
*
* @param hexString - create a ObjectId from a passed in 24 character hexstring.
*/
static createFromHexString(hexString: string): ObjectId {
if (hexString?.length !== 24) {
throw new BSONError('hex string must be 24 characters');
}
return new ObjectId(ByteUtils.fromHex(hexString));
}
/** Creates an ObjectId instance from a base64 string */
static createFromBase64(base64: string): ObjectId {
if (base64?.length !== 16) {
throw new BSONError('base64 string must be 16 characters');
}
return new ObjectId(ByteUtils.fromBase64(base64));
}
/**
* Checks if a value is a valid bson ObjectId
*
* @param id - ObjectId instance to validate.
*/
static isValid(id: string | number | ObjectId | ObjectIdLike | Uint8Array): boolean {
if (id == null) return false;
try {
new ObjectId(id);
return true;
} catch {
return false;
}
}
/** @internal */
toExtendedJSON(): ObjectIdExtended {
if (this.toHexString) return { $oid: this.toHexString() };
return { $oid: this.toString('hex') };
}
/** @internal */
static fromExtendedJSON(doc: ObjectIdExtended): ObjectId {
return new ObjectId(doc.$oid);
}
/**
* Converts to a string representation of this Id.
*
* @returns return the 24 character hex string representation.
* @internal
*/
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new ObjectId("${this.toHexString()}")`;
}
}

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VISUALIZACION/node_modules/bson/src/parser/calculate_size.ts generated vendored Executable file
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import { Binary } from '../binary';
import type { Document } from '../bson';
import { BSONVersionError } from '../error';
import * as constants from '../constants';
import { ByteUtils } from '../utils/byte_utils';
import { isAnyArrayBuffer, isDate, isRegExp } from './utils';
export function internalCalculateObjectSize(
object: Document,
serializeFunctions?: boolean,
ignoreUndefined?: boolean
): number {
let totalLength = 4 + 1;
if (Array.isArray(object)) {
for (let i = 0; i < object.length; i++) {
totalLength += calculateElement(
i.toString(),
object[i],
serializeFunctions,
true,
ignoreUndefined
);
}
} else {
// If we have toBSON defined, override the current object
if (typeof object?.toBSON === 'function') {
object = object.toBSON();
}
// Calculate size
for (const key of Object.keys(object)) {
totalLength += calculateElement(key, object[key], serializeFunctions, false, ignoreUndefined);
}
}
return totalLength;
}
/** @internal */
function calculateElement(
name: string,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
value: any,
serializeFunctions = false,
isArray = false,
ignoreUndefined = false
) {
// If we have toBSON defined, override the current object
if (typeof value?.toBSON === 'function') {
value = value.toBSON();
}
switch (typeof value) {
case 'string':
return 1 + ByteUtils.utf8ByteLength(name) + 1 + 4 + ByteUtils.utf8ByteLength(value) + 1;
case 'number':
if (
Math.floor(value) === value &&
value >= constants.JS_INT_MIN &&
value <= constants.JS_INT_MAX
) {
if (value >= constants.BSON_INT32_MIN && value <= constants.BSON_INT32_MAX) {
// 32 bit
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (4 + 1);
} else {
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
}
} else {
// 64 bit
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
}
case 'undefined':
if (isArray || !ignoreUndefined)
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
return 0;
case 'boolean':
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 1);
case 'object':
if (
value != null &&
typeof value._bsontype === 'string' &&
value[Symbol.for('@@mdb.bson.version')] !== constants.BSON_MAJOR_VERSION
) {
throw new BSONVersionError();
} else if (value == null || value._bsontype === 'MinKey' || value._bsontype === 'MaxKey') {
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + 1;
} else if (value._bsontype === 'ObjectId') {
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (12 + 1);
} else if (value instanceof Date || isDate(value)) {
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
} else if (
ArrayBuffer.isView(value) ||
value instanceof ArrayBuffer ||
isAnyArrayBuffer(value)
) {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (1 + 4 + 1) + value.byteLength
);
} else if (
value._bsontype === 'Long' ||
value._bsontype === 'Double' ||
value._bsontype === 'Timestamp'
) {
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (8 + 1);
} else if (value._bsontype === 'Decimal128') {
return (name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (16 + 1);
} else if (value._bsontype === 'Code') {
// Calculate size depending on the availability of a scope
if (value.scope != null && Object.keys(value.scope).length > 0) {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
1 +
4 +
4 +
ByteUtils.utf8ByteLength(value.code.toString()) +
1 +
internalCalculateObjectSize(value.scope, serializeFunctions, ignoreUndefined)
);
} else {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
1 +
4 +
ByteUtils.utf8ByteLength(value.code.toString()) +
1
);
}
} else if (value._bsontype === 'Binary') {
const binary: Binary = value;
// Check what kind of subtype we have
if (binary.sub_type === Binary.SUBTYPE_BYTE_ARRAY) {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
(binary.position + 1 + 4 + 1 + 4)
);
} else {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) + (binary.position + 1 + 4 + 1)
);
}
} else if (value._bsontype === 'Symbol') {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
ByteUtils.utf8ByteLength(value.value) +
4 +
1 +
1
);
} else if (value._bsontype === 'DBRef') {
// Set up correct object for serialization
const ordered_values = Object.assign(
{
$ref: value.collection,
$id: value.oid
},
value.fields
);
// Add db reference if it exists
if (value.db != null) {
ordered_values['$db'] = value.db;
}
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
1 +
internalCalculateObjectSize(ordered_values, serializeFunctions, ignoreUndefined)
);
} else if (value instanceof RegExp || isRegExp(value)) {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
1 +
ByteUtils.utf8ByteLength(value.source) +
1 +
(value.global ? 1 : 0) +
(value.ignoreCase ? 1 : 0) +
(value.multiline ? 1 : 0) +
1
);
} else if (value._bsontype === 'BSONRegExp') {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
1 +
ByteUtils.utf8ByteLength(value.pattern) +
1 +
ByteUtils.utf8ByteLength(value.options) +
1
);
} else {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
internalCalculateObjectSize(value, serializeFunctions, ignoreUndefined) +
1
);
}
case 'function':
if (serializeFunctions) {
return (
(name != null ? ByteUtils.utf8ByteLength(name) + 1 : 0) +
1 +
4 +
ByteUtils.utf8ByteLength(value.toString()) +
1
);
}
}
return 0;
}

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VISUALIZACION/node_modules/bson/src/parser/deserializer.ts generated vendored Executable file
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import { Binary, UUID } from '../binary';
import type { Document } from '../bson';
import { Code } from '../code';
import * as constants from '../constants';
import { DBRef, type DBRefLike, isDBRefLike } from '../db_ref';
import { Decimal128 } from '../decimal128';
import { Double } from '../double';
import { BSONError } from '../error';
import { Int32 } from '../int_32';
import { Long } from '../long';
import { MaxKey } from '../max_key';
import { MinKey } from '../min_key';
import { ObjectId } from '../objectid';
import { BSONRegExp } from '../regexp';
import { BSONSymbol } from '../symbol';
import { Timestamp } from '../timestamp';
import { BSONDataView, ByteUtils } from '../utils/byte_utils';
import { validateUtf8 } from '../validate_utf8';
/** @public */
export interface DeserializeOptions {
/**
* when deserializing a Long return as a BigInt.
* @defaultValue `false`
*/
useBigInt64?: boolean;
/**
* when deserializing a Long will fit it into a Number if it's smaller than 53 bits.
* @defaultValue `true`
*/
promoteLongs?: boolean;
/**
* when deserializing a Binary will return it as a node.js Buffer instance.
* @defaultValue `false`
*/
promoteBuffers?: boolean;
/**
* when deserializing will promote BSON values to their Node.js closest equivalent types.
* @defaultValue `true`
*/
promoteValues?: boolean;
/**
* allow to specify if there what fields we wish to return as unserialized raw buffer.
* @defaultValue `null`
*/
fieldsAsRaw?: Document;
/**
* return BSON regular expressions as BSONRegExp instances.
* @defaultValue `false`
*/
bsonRegExp?: boolean;
/**
* allows the buffer to be larger than the parsed BSON object.
* @defaultValue `false`
*/
allowObjectSmallerThanBufferSize?: boolean;
/**
* Offset into buffer to begin reading document from
* @defaultValue `0`
*/
index?: number;
raw?: boolean;
/** Allows for opt-out utf-8 validation for all keys or
* specified keys. Must be all true or all false.
*
* @example
* ```js
* // disables validation on all keys
* validation: { utf8: false }
*
* // enables validation only on specified keys a, b, and c
* validation: { utf8: { a: true, b: true, c: true } }
*
* // disables validation only on specified keys a, b
* validation: { utf8: { a: false, b: false } }
* ```
*/
validation?: { utf8: boolean | Record<string, true> | Record<string, false> };
}
// Internal long versions
const JS_INT_MAX_LONG = Long.fromNumber(constants.JS_INT_MAX);
const JS_INT_MIN_LONG = Long.fromNumber(constants.JS_INT_MIN);
export function internalDeserialize(
buffer: Uint8Array,
options: DeserializeOptions,
isArray?: boolean
): Document {
options = options == null ? {} : options;
const index = options && options.index ? options.index : 0;
// Read the document size
const size =
buffer[index] |
(buffer[index + 1] << 8) |
(buffer[index + 2] << 16) |
(buffer[index + 3] << 24);
if (size < 5) {
throw new BSONError(`bson size must be >= 5, is ${size}`);
}
if (options.allowObjectSmallerThanBufferSize && buffer.length < size) {
throw new BSONError(`buffer length ${buffer.length} must be >= bson size ${size}`);
}
if (!options.allowObjectSmallerThanBufferSize && buffer.length !== size) {
throw new BSONError(`buffer length ${buffer.length} must === bson size ${size}`);
}
if (size + index > buffer.byteLength) {
throw new BSONError(
`(bson size ${size} + options.index ${index} must be <= buffer length ${buffer.byteLength})`
);
}
// Illegal end value
if (buffer[index + size - 1] !== 0) {
throw new BSONError(
"One object, sized correctly, with a spot for an EOO, but the EOO isn't 0x00"
);
}
// Start deserialization
return deserializeObject(buffer, index, options, isArray);
}
const allowedDBRefKeys = /^\$ref$|^\$id$|^\$db$/;
function deserializeObject(
buffer: Uint8Array,
index: number,
options: DeserializeOptions,
isArray = false
) {
const fieldsAsRaw = options['fieldsAsRaw'] == null ? null : options['fieldsAsRaw'];
// Return raw bson buffer instead of parsing it
const raw = options['raw'] == null ? false : options['raw'];
// Return BSONRegExp objects instead of native regular expressions
const bsonRegExp = typeof options['bsonRegExp'] === 'boolean' ? options['bsonRegExp'] : false;
// Controls the promotion of values vs wrapper classes
const promoteBuffers = options.promoteBuffers ?? false;
const promoteLongs = options.promoteLongs ?? true;
const promoteValues = options.promoteValues ?? true;
const useBigInt64 = options.useBigInt64 ?? false;
if (useBigInt64 && !promoteValues) {
throw new BSONError('Must either request bigint or Long for int64 deserialization');
}
if (useBigInt64 && !promoteLongs) {
throw new BSONError('Must either request bigint or Long for int64 deserialization');
}
// Ensures default validation option if none given
const validation = options.validation == null ? { utf8: true } : options.validation;
// Shows if global utf-8 validation is enabled or disabled
let globalUTFValidation = true;
// Reflects utf-8 validation setting regardless of global or specific key validation
let validationSetting: boolean;
// Set of keys either to enable or disable validation on
const utf8KeysSet = new Set();
// Check for boolean uniformity and empty validation option
const utf8ValidatedKeys = validation.utf8;
if (typeof utf8ValidatedKeys === 'boolean') {
validationSetting = utf8ValidatedKeys;
} else {
globalUTFValidation = false;
const utf8ValidationValues = Object.keys(utf8ValidatedKeys).map(function (key) {
return utf8ValidatedKeys[key];
});
if (utf8ValidationValues.length === 0) {
throw new BSONError('UTF-8 validation setting cannot be empty');
}
if (typeof utf8ValidationValues[0] !== 'boolean') {
throw new BSONError('Invalid UTF-8 validation option, must specify boolean values');
}
validationSetting = utf8ValidationValues[0];
// Ensures boolean uniformity in utf-8 validation (all true or all false)
if (!utf8ValidationValues.every(item => item === validationSetting)) {
throw new BSONError('Invalid UTF-8 validation option - keys must be all true or all false');
}
}
// Add keys to set that will either be validated or not based on validationSetting
if (!globalUTFValidation) {
for (const key of Object.keys(utf8ValidatedKeys)) {
utf8KeysSet.add(key);
}
}
// Set the start index
const startIndex = index;
// Validate that we have at least 4 bytes of buffer
if (buffer.length < 5) throw new BSONError('corrupt bson message < 5 bytes long');
// Read the document size
const size =
buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);
// Ensure buffer is valid size
if (size < 5 || size > buffer.length) throw new BSONError('corrupt bson message');
// Create holding object
const object: Document = isArray ? [] : {};
// Used for arrays to skip having to perform utf8 decoding
let arrayIndex = 0;
const done = false;
let isPossibleDBRef = isArray ? false : null;
// While we have more left data left keep parsing
const dataview = new DataView(buffer.buffer, buffer.byteOffset, buffer.byteLength);
while (!done) {
// Read the type
const elementType = buffer[index++];
// If we get a zero it's the last byte, exit
if (elementType === 0) break;
// Get the start search index
let i = index;
// Locate the end of the c string
while (buffer[i] !== 0x00 && i < buffer.length) {
i++;
}
// If are at the end of the buffer there is a problem with the document
if (i >= buffer.byteLength) throw new BSONError('Bad BSON Document: illegal CString');
// Represents the key
const name = isArray ? arrayIndex++ : ByteUtils.toUTF8(buffer, index, i);
// shouldValidateKey is true if the key should be validated, false otherwise
let shouldValidateKey = true;
if (globalUTFValidation || utf8KeysSet.has(name)) {
shouldValidateKey = validationSetting;
} else {
shouldValidateKey = !validationSetting;
}
if (isPossibleDBRef !== false && (name as string)[0] === '$') {
isPossibleDBRef = allowedDBRefKeys.test(name as string);
}
let value;
index = i + 1;
if (elementType === constants.BSON_DATA_STRING) {
const stringSize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
if (
stringSize <= 0 ||
stringSize > buffer.length - index ||
buffer[index + stringSize - 1] !== 0
) {
throw new BSONError('bad string length in bson');
}
value = getValidatedString(buffer, index, index + stringSize - 1, shouldValidateKey);
index = index + stringSize;
} else if (elementType === constants.BSON_DATA_OID) {
const oid = ByteUtils.allocate(12);
oid.set(buffer.subarray(index, index + 12));
value = new ObjectId(oid);
index = index + 12;
} else if (elementType === constants.BSON_DATA_INT && promoteValues === false) {
value = new Int32(
buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24)
);
} else if (elementType === constants.BSON_DATA_INT) {
value =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
} else if (elementType === constants.BSON_DATA_NUMBER && promoteValues === false) {
value = new Double(dataview.getFloat64(index, true));
index = index + 8;
} else if (elementType === constants.BSON_DATA_NUMBER) {
value = dataview.getFloat64(index, true);
index = index + 8;
} else if (elementType === constants.BSON_DATA_DATE) {
const lowBits =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
const highBits =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
value = new Date(new Long(lowBits, highBits).toNumber());
} else if (elementType === constants.BSON_DATA_BOOLEAN) {
if (buffer[index] !== 0 && buffer[index] !== 1)
throw new BSONError('illegal boolean type value');
value = buffer[index++] === 1;
} else if (elementType === constants.BSON_DATA_OBJECT) {
const _index = index;
const objectSize =
buffer[index] |
(buffer[index + 1] << 8) |
(buffer[index + 2] << 16) |
(buffer[index + 3] << 24);
if (objectSize <= 0 || objectSize > buffer.length - index)
throw new BSONError('bad embedded document length in bson');
// We have a raw value
if (raw) {
value = buffer.slice(index, index + objectSize);
} else {
let objectOptions = options;
if (!globalUTFValidation) {
objectOptions = { ...options, validation: { utf8: shouldValidateKey } };
}
value = deserializeObject(buffer, _index, objectOptions, false);
}
index = index + objectSize;
} else if (elementType === constants.BSON_DATA_ARRAY) {
const _index = index;
const objectSize =
buffer[index] |
(buffer[index + 1] << 8) |
(buffer[index + 2] << 16) |
(buffer[index + 3] << 24);
let arrayOptions: DeserializeOptions = options;
// Stop index
const stopIndex = index + objectSize;
// All elements of array to be returned as raw bson
if (fieldsAsRaw && fieldsAsRaw[name]) {
arrayOptions = { ...options, raw: true };
}
if (!globalUTFValidation) {
arrayOptions = { ...arrayOptions, validation: { utf8: shouldValidateKey } };
}
value = deserializeObject(buffer, _index, arrayOptions, true);
index = index + objectSize;
if (buffer[index - 1] !== 0) throw new BSONError('invalid array terminator byte');
if (index !== stopIndex) throw new BSONError('corrupted array bson');
} else if (elementType === constants.BSON_DATA_UNDEFINED) {
value = undefined;
} else if (elementType === constants.BSON_DATA_NULL) {
value = null;
} else if (elementType === constants.BSON_DATA_LONG) {
// Unpack the low and high bits
const dataview = BSONDataView.fromUint8Array(buffer.subarray(index, index + 8));
const lowBits =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
const highBits =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
const long = new Long(lowBits, highBits);
if (useBigInt64) {
value = dataview.getBigInt64(0, true);
} else if (promoteLongs && promoteValues === true) {
// Promote the long if possible
value =
long.lessThanOrEqual(JS_INT_MAX_LONG) && long.greaterThanOrEqual(JS_INT_MIN_LONG)
? long.toNumber()
: long;
} else {
value = long;
}
} else if (elementType === constants.BSON_DATA_DECIMAL128) {
// Buffer to contain the decimal bytes
const bytes = ByteUtils.allocate(16);
// Copy the next 16 bytes into the bytes buffer
bytes.set(buffer.subarray(index, index + 16), 0);
// Update index
index = index + 16;
// Assign the new Decimal128 value
value = new Decimal128(bytes);
} else if (elementType === constants.BSON_DATA_BINARY) {
let binarySize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
const totalBinarySize = binarySize;
const subType = buffer[index++];
// Did we have a negative binary size, throw
if (binarySize < 0) throw new BSONError('Negative binary type element size found');
// Is the length longer than the document
if (binarySize > buffer.byteLength)
throw new BSONError('Binary type size larger than document size');
// Decode as raw Buffer object if options specifies it
if (buffer['slice'] != null) {
// If we have subtype 2 skip the 4 bytes for the size
if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
binarySize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
if (binarySize < 0)
throw new BSONError('Negative binary type element size found for subtype 0x02');
if (binarySize > totalBinarySize - 4)
throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
if (binarySize < totalBinarySize - 4)
throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
}
if (promoteBuffers && promoteValues) {
value = ByteUtils.toLocalBufferType(buffer.slice(index, index + binarySize));
} else {
value = new Binary(buffer.slice(index, index + binarySize), subType);
if (subType === constants.BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
value = value.toUUID();
}
}
} else {
const _buffer = ByteUtils.allocate(binarySize);
// If we have subtype 2 skip the 4 bytes for the size
if (subType === Binary.SUBTYPE_BYTE_ARRAY) {
binarySize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
if (binarySize < 0)
throw new BSONError('Negative binary type element size found for subtype 0x02');
if (binarySize > totalBinarySize - 4)
throw new BSONError('Binary type with subtype 0x02 contains too long binary size');
if (binarySize < totalBinarySize - 4)
throw new BSONError('Binary type with subtype 0x02 contains too short binary size');
}
// Copy the data
for (i = 0; i < binarySize; i++) {
_buffer[i] = buffer[index + i];
}
if (promoteBuffers && promoteValues) {
value = _buffer;
} else {
value = new Binary(buffer.slice(index, index + binarySize), subType);
if (subType === constants.BSON_BINARY_SUBTYPE_UUID_NEW && UUID.isValid(value)) {
value = value.toUUID();
}
}
}
// Update the index
index = index + binarySize;
} else if (elementType === constants.BSON_DATA_REGEXP && bsonRegExp === false) {
// Get the start search index
i = index;
// Locate the end of the c string
while (buffer[i] !== 0x00 && i < buffer.length) {
i++;
}
// If are at the end of the buffer there is a problem with the document
if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
// Return the C string
const source = ByteUtils.toUTF8(buffer, index, i);
// Create the regexp
index = i + 1;
// Get the start search index
i = index;
// Locate the end of the c string
while (buffer[i] !== 0x00 && i < buffer.length) {
i++;
}
// If are at the end of the buffer there is a problem with the document
if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
// Return the C string
const regExpOptions = ByteUtils.toUTF8(buffer, index, i);
index = i + 1;
// For each option add the corresponding one for javascript
const optionsArray = new Array(regExpOptions.length);
// Parse options
for (i = 0; i < regExpOptions.length; i++) {
switch (regExpOptions[i]) {
case 'm':
optionsArray[i] = 'm';
break;
case 's':
optionsArray[i] = 'g';
break;
case 'i':
optionsArray[i] = 'i';
break;
}
}
value = new RegExp(source, optionsArray.join(''));
} else if (elementType === constants.BSON_DATA_REGEXP && bsonRegExp === true) {
// Get the start search index
i = index;
// Locate the end of the c string
while (buffer[i] !== 0x00 && i < buffer.length) {
i++;
}
// If are at the end of the buffer there is a problem with the document
if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
// Return the C string
const source = ByteUtils.toUTF8(buffer, index, i);
index = i + 1;
// Get the start search index
i = index;
// Locate the end of the c string
while (buffer[i] !== 0x00 && i < buffer.length) {
i++;
}
// If are at the end of the buffer there is a problem with the document
if (i >= buffer.length) throw new BSONError('Bad BSON Document: illegal CString');
// Return the C string
const regExpOptions = ByteUtils.toUTF8(buffer, index, i);
index = i + 1;
// Set the object
value = new BSONRegExp(source, regExpOptions);
} else if (elementType === constants.BSON_DATA_SYMBOL) {
const stringSize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
if (
stringSize <= 0 ||
stringSize > buffer.length - index ||
buffer[index + stringSize - 1] !== 0
) {
throw new BSONError('bad string length in bson');
}
const symbol = getValidatedString(buffer, index, index + stringSize - 1, shouldValidateKey);
value = promoteValues ? symbol : new BSONSymbol(symbol);
index = index + stringSize;
} else if (elementType === constants.BSON_DATA_TIMESTAMP) {
// We intentionally **do not** use bit shifting here
// Bit shifting in javascript coerces numbers to **signed** int32s
// We need to keep i, and t unsigned
const i =
buffer[index++] +
buffer[index++] * (1 << 8) +
buffer[index++] * (1 << 16) +
buffer[index++] * (1 << 24);
const t =
buffer[index++] +
buffer[index++] * (1 << 8) +
buffer[index++] * (1 << 16) +
buffer[index++] * (1 << 24);
value = new Timestamp({ i, t });
} else if (elementType === constants.BSON_DATA_MIN_KEY) {
value = new MinKey();
} else if (elementType === constants.BSON_DATA_MAX_KEY) {
value = new MaxKey();
} else if (elementType === constants.BSON_DATA_CODE) {
const stringSize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
if (
stringSize <= 0 ||
stringSize > buffer.length - index ||
buffer[index + stringSize - 1] !== 0
) {
throw new BSONError('bad string length in bson');
}
const functionString = getValidatedString(
buffer,
index,
index + stringSize - 1,
shouldValidateKey
);
value = new Code(functionString);
// Update parse index position
index = index + stringSize;
} else if (elementType === constants.BSON_DATA_CODE_W_SCOPE) {
const totalSize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
// Element cannot be shorter than totalSize + stringSize + documentSize + terminator
if (totalSize < 4 + 4 + 4 + 1) {
throw new BSONError('code_w_scope total size shorter minimum expected length');
}
// Get the code string size
const stringSize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
// Check if we have a valid string
if (
stringSize <= 0 ||
stringSize > buffer.length - index ||
buffer[index + stringSize - 1] !== 0
) {
throw new BSONError('bad string length in bson');
}
// Javascript function
const functionString = getValidatedString(
buffer,
index,
index + stringSize - 1,
shouldValidateKey
);
// Update parse index position
index = index + stringSize;
// Parse the element
const _index = index;
// Decode the size of the object document
const objectSize =
buffer[index] |
(buffer[index + 1] << 8) |
(buffer[index + 2] << 16) |
(buffer[index + 3] << 24);
// Decode the scope object
const scopeObject = deserializeObject(buffer, _index, options, false);
// Adjust the index
index = index + objectSize;
// Check if field length is too short
if (totalSize < 4 + 4 + objectSize + stringSize) {
throw new BSONError('code_w_scope total size is too short, truncating scope');
}
// Check if totalSize field is too long
if (totalSize > 4 + 4 + objectSize + stringSize) {
throw new BSONError('code_w_scope total size is too long, clips outer document');
}
value = new Code(functionString, scopeObject);
} else if (elementType === constants.BSON_DATA_DBPOINTER) {
// Get the code string size
const stringSize =
buffer[index++] |
(buffer[index++] << 8) |
(buffer[index++] << 16) |
(buffer[index++] << 24);
// Check if we have a valid string
if (
stringSize <= 0 ||
stringSize > buffer.length - index ||
buffer[index + stringSize - 1] !== 0
)
throw new BSONError('bad string length in bson');
// Namespace
if (validation != null && validation.utf8) {
if (!validateUtf8(buffer, index, index + stringSize - 1)) {
throw new BSONError('Invalid UTF-8 string in BSON document');
}
}
const namespace = ByteUtils.toUTF8(buffer, index, index + stringSize - 1);
// Update parse index position
index = index + stringSize;
// Read the oid
const oidBuffer = ByteUtils.allocate(12);
oidBuffer.set(buffer.subarray(index, index + 12), 0);
const oid = new ObjectId(oidBuffer);
// Update the index
index = index + 12;
// Upgrade to DBRef type
value = new DBRef(namespace, oid);
} else {
throw new BSONError(
`Detected unknown BSON type ${elementType.toString(16)} for fieldname "${name}"`
);
}
if (name === '__proto__') {
Object.defineProperty(object, name, {
value,
writable: true,
enumerable: true,
configurable: true
});
} else {
object[name] = value;
}
}
// Check if the deserialization was against a valid array/object
if (size !== index - startIndex) {
if (isArray) throw new BSONError('corrupt array bson');
throw new BSONError('corrupt object bson');
}
// if we did not find "$ref", "$id", "$db", or found an extraneous $key, don't make a DBRef
if (!isPossibleDBRef) return object;
if (isDBRefLike(object)) {
const copy = Object.assign({}, object) as Partial<DBRefLike>;
delete copy.$ref;
delete copy.$id;
delete copy.$db;
return new DBRef(object.$ref, object.$id, object.$db, copy);
}
return object;
}
function getValidatedString(
buffer: Uint8Array,
start: number,
end: number,
shouldValidateUtf8: boolean
) {
const value = ByteUtils.toUTF8(buffer, start, end);
// if utf8 validation is on, do the check
if (shouldValidateUtf8) {
for (let i = 0; i < value.length; i++) {
if (value.charCodeAt(i) === 0xfffd) {
if (!validateUtf8(buffer, start, end)) {
throw new BSONError('Invalid UTF-8 string in BSON document');
}
break;
}
}
}
return value;
}

1001
VISUALIZACION/node_modules/bson/src/parser/serializer.ts generated vendored Executable file

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29
VISUALIZACION/node_modules/bson/src/parser/utils.ts generated vendored Executable file
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export function isAnyArrayBuffer(value: unknown): value is ArrayBuffer {
return ['[object ArrayBuffer]', '[object SharedArrayBuffer]'].includes(
Object.prototype.toString.call(value)
);
}
export function isUint8Array(value: unknown): value is Uint8Array {
return Object.prototype.toString.call(value) === '[object Uint8Array]';
}
export function isBigInt64Array(value: unknown): value is BigInt64Array {
return Object.prototype.toString.call(value) === '[object BigInt64Array]';
}
export function isBigUInt64Array(value: unknown): value is BigUint64Array {
return Object.prototype.toString.call(value) === '[object BigUint64Array]';
}
export function isRegExp(d: unknown): d is RegExp {
return Object.prototype.toString.call(d) === '[object RegExp]';
}
export function isMap(d: unknown): d is Map<unknown, unknown> {
return Object.prototype.toString.call(d) === '[object Map]';
}
export function isDate(d: unknown): d is Date {
return Object.prototype.toString.call(d) === '[object Date]';
}

114
VISUALIZACION/node_modules/bson/src/regexp.ts generated vendored Executable file
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import { BSONValue } from './bson_value';
import { BSONError } from './error';
import type { EJSONOptions } from './extended_json';
function alphabetize(str: string): string {
return str.split('').sort().join('');
}
/** @public */
export interface BSONRegExpExtendedLegacy {
$regex: string | BSONRegExp;
$options: string;
}
/** @public */
export interface BSONRegExpExtended {
$regularExpression: {
pattern: string;
options: string;
};
}
/**
* A class representation of the BSON RegExp type.
* @public
* @category BSONType
*/
export class BSONRegExp extends BSONValue {
get _bsontype(): 'BSONRegExp' {
return 'BSONRegExp';
}
pattern!: string;
options!: string;
/**
* @param pattern - The regular expression pattern to match
* @param options - The regular expression options
*/
constructor(pattern: string, options?: string) {
super();
this.pattern = pattern;
this.options = alphabetize(options ?? '');
if (this.pattern.indexOf('\x00') !== -1) {
throw new BSONError(
`BSON Regex patterns cannot contain null bytes, found: ${JSON.stringify(this.pattern)}`
);
}
if (this.options.indexOf('\x00') !== -1) {
throw new BSONError(
`BSON Regex options cannot contain null bytes, found: ${JSON.stringify(this.options)}`
);
}
// Validate options
for (let i = 0; i < this.options.length; i++) {
if (
!(
this.options[i] === 'i' ||
this.options[i] === 'm' ||
this.options[i] === 'x' ||
this.options[i] === 'l' ||
this.options[i] === 's' ||
this.options[i] === 'u'
)
) {
throw new BSONError(`The regular expression option [${this.options[i]}] is not supported`);
}
}
}
static parseOptions(options?: string): string {
return options ? options.split('').sort().join('') : '';
}
/** @internal */
toExtendedJSON(options?: EJSONOptions): BSONRegExpExtendedLegacy | BSONRegExpExtended {
options = options || {};
if (options.legacy) {
return { $regex: this.pattern, $options: this.options };
}
return { $regularExpression: { pattern: this.pattern, options: this.options } };
}
/** @internal */
static fromExtendedJSON(doc: BSONRegExpExtendedLegacy | BSONRegExpExtended): BSONRegExp {
if ('$regex' in doc) {
if (typeof doc.$regex !== 'string') {
// This is for $regex query operators that have extended json values.
if (doc.$regex._bsontype === 'BSONRegExp') {
return doc as unknown as BSONRegExp;
}
} else {
return new BSONRegExp(doc.$regex, BSONRegExp.parseOptions(doc.$options));
}
}
if ('$regularExpression' in doc) {
return new BSONRegExp(
doc.$regularExpression.pattern,
BSONRegExp.parseOptions(doc.$regularExpression.options)
);
}
throw new BSONError(`Unexpected BSONRegExp EJSON object form: ${JSON.stringify(doc)}`);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new BSONRegExp(${JSON.stringify(this.pattern)}, ${JSON.stringify(this.options)})`;
}
}

58
VISUALIZACION/node_modules/bson/src/symbol.ts generated vendored Executable file
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import { BSONValue } from './bson_value';
/** @public */
export interface BSONSymbolExtended {
$symbol: string;
}
/**
* A class representation of the BSON Symbol type.
* @public
* @category BSONType
*/
export class BSONSymbol extends BSONValue {
get _bsontype(): 'BSONSymbol' {
return 'BSONSymbol';
}
value!: string;
/**
* @param value - the string representing the symbol.
*/
constructor(value: string) {
super();
this.value = value;
}
/** Access the wrapped string value. */
valueOf(): string {
return this.value;
}
toString(): string {
return this.value;
}
inspect(): string {
return `new BSONSymbol("${this.value}")`;
}
toJSON(): string {
return this.value;
}
/** @internal */
toExtendedJSON(): BSONSymbolExtended {
return { $symbol: this.value };
}
/** @internal */
static fromExtendedJSON(doc: BSONSymbolExtended): BSONSymbol {
return new BSONSymbol(doc.$symbol);
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
}

152
VISUALIZACION/node_modules/bson/src/timestamp.ts generated vendored Executable file
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import { BSONError } from './error';
import type { Int32 } from './int_32';
import { Long } from './long';
/** @public */
export type TimestampOverrides = '_bsontype' | 'toExtendedJSON' | 'fromExtendedJSON' | 'inspect';
/** @public */
export type LongWithoutOverrides = new (
low: unknown,
high?: number | boolean,
unsigned?: boolean
) => {
[P in Exclude<keyof Long, TimestampOverrides>]: Long[P];
};
/** @public */
export const LongWithoutOverridesClass: LongWithoutOverrides =
Long as unknown as LongWithoutOverrides;
/** @public */
export interface TimestampExtended {
$timestamp: {
t: number;
i: number;
};
}
/**
* @public
* @category BSONType
*/
export class Timestamp extends LongWithoutOverridesClass {
get _bsontype(): 'Timestamp' {
return 'Timestamp';
}
static readonly MAX_VALUE = Long.MAX_UNSIGNED_VALUE;
/**
* @param int - A 64-bit bigint representing the Timestamp.
*/
constructor(int: bigint);
/**
* @param long - A 64-bit Long representing the Timestamp.
*/
constructor(long: Long);
/**
* @param value - A pair of two values indicating timestamp and increment.
*/
constructor(value: { t: number; i: number });
constructor(low?: bigint | Long | { t: number | Int32; i: number | Int32 }) {
if (low == null) {
super(0, 0, true);
} else if (typeof low === 'bigint') {
super(low, true);
} else if (Long.isLong(low)) {
super(low.low, low.high, true);
} else if (typeof low === 'object' && 't' in low && 'i' in low) {
if (typeof low.t !== 'number' && (typeof low.t !== 'object' || low.t._bsontype !== 'Int32')) {
throw new BSONError('Timestamp constructed from { t, i } must provide t as a number');
}
if (typeof low.i !== 'number' && (typeof low.i !== 'object' || low.i._bsontype !== 'Int32')) {
throw new BSONError('Timestamp constructed from { t, i } must provide i as a number');
}
const t = Number(low.t);
const i = Number(low.i);
if (t < 0 || Number.isNaN(t)) {
throw new BSONError('Timestamp constructed from { t, i } must provide a positive t');
}
if (i < 0 || Number.isNaN(i)) {
throw new BSONError('Timestamp constructed from { t, i } must provide a positive i');
}
if (t > 0xffff_ffff) {
throw new BSONError(
'Timestamp constructed from { t, i } must provide t equal or less than uint32 max'
);
}
if (i > 0xffff_ffff) {
throw new BSONError(
'Timestamp constructed from { t, i } must provide i equal or less than uint32 max'
);
}
super(i, t, true);
} else {
throw new BSONError(
'A Timestamp can only be constructed with: bigint, Long, or { t: number; i: number }'
);
}
}
toJSON(): { $timestamp: string } {
return {
$timestamp: this.toString()
};
}
/** Returns a Timestamp represented by the given (32-bit) integer value. */
static fromInt(value: number): Timestamp {
return new Timestamp(Long.fromInt(value, true));
}
/** Returns a Timestamp representing the given number value, provided that it is a finite number. Otherwise, zero is returned. */
static fromNumber(value: number): Timestamp {
return new Timestamp(Long.fromNumber(value, true));
}
/**
* Returns a Timestamp for the given high and low bits. Each is assumed to use 32 bits.
*
* @param lowBits - the low 32-bits.
* @param highBits - the high 32-bits.
*/
static fromBits(lowBits: number, highBits: number): Timestamp {
return new Timestamp({ i: lowBits, t: highBits });
}
/**
* Returns a Timestamp from the given string, optionally using the given radix.
*
* @param str - the textual representation of the Timestamp.
* @param optRadix - the radix in which the text is written.
*/
static fromString(str: string, optRadix: number): Timestamp {
return new Timestamp(Long.fromString(str, true, optRadix));
}
/** @internal */
toExtendedJSON(): TimestampExtended {
return { $timestamp: { t: this.high >>> 0, i: this.low >>> 0 } };
}
/** @internal */
static fromExtendedJSON(doc: TimestampExtended): Timestamp {
// The Long check is necessary because extended JSON has different behavior given the size of the input number
const i = Long.isLong(doc.$timestamp.i)
? doc.$timestamp.i.getLowBitsUnsigned() // Need to fetch the least significant 32 bits
: doc.$timestamp.i;
const t = Long.isLong(doc.$timestamp.t)
? doc.$timestamp.t.getLowBitsUnsigned() // Need to fetch the least significant 32 bits
: doc.$timestamp.t;
return new Timestamp({ t, i });
}
/** @internal */
[Symbol.for('nodejs.util.inspect.custom')](): string {
return this.inspect();
}
inspect(): string {
return `new Timestamp({ t: ${this.getHighBits()}, i: ${this.getLowBits()} })`;
}
}

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import { nodeJsByteUtils } from './node_byte_utils';
import { webByteUtils } from './web_byte_utils';
/** @internal */
export type ByteUtils = {
/** Transforms the input to an instance of Buffer if running on node, otherwise Uint8Array */
toLocalBufferType(buffer: Uint8Array | ArrayBufferView | ArrayBuffer): Uint8Array;
/** Create empty space of size */
allocate: (size: number) => Uint8Array;
/** Check if two Uint8Arrays are deep equal */
equals: (a: Uint8Array, b: Uint8Array) => boolean;
/** Check if two Uint8Arrays are deep equal */
fromNumberArray: (array: number[]) => Uint8Array;
/** Create a Uint8Array from a base64 string */
fromBase64: (base64: string) => Uint8Array;
/** Create a base64 string from bytes */
toBase64: (buffer: Uint8Array) => string;
/** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
fromISO88591: (codePoints: string) => Uint8Array;
/** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
toISO88591: (buffer: Uint8Array) => string;
/** Create a Uint8Array from a hex string */
fromHex: (hex: string) => Uint8Array;
/** Create a hex string from bytes */
toHex: (buffer: Uint8Array) => string;
/** Create a Uint8Array containing utf8 code units from a string */
fromUTF8: (text: string) => Uint8Array;
/** Create a string from utf8 code units */
toUTF8: (buffer: Uint8Array, start: number, end: number) => string;
/** Get the utf8 code unit count from a string if it were to be transformed to utf8 */
utf8ByteLength: (input: string) => number;
/** Encode UTF8 bytes generated from `source` string into `destination` at byteOffset. Returns the number of bytes encoded. */
encodeUTF8Into(destination: Uint8Array, source: string, byteOffset: number): number;
/** Generate a Uint8Array filled with random bytes with byteLength */
randomBytes(byteLength: number): Uint8Array;
};
declare const Buffer: { new (): unknown; prototype?: { _isBuffer?: boolean } } | undefined;
/**
* Check that a global Buffer exists that is a function and
* does not have a '_isBuffer' property defined on the prototype
* (this is to prevent using the npm buffer)
*/
const hasGlobalBuffer = typeof Buffer === 'function' && Buffer.prototype?._isBuffer !== true;
/**
* This is the only ByteUtils that should be used across the rest of the BSON library.
*
* The type annotation is important here, it asserts that each of the platform specific
* utils implementations are compatible with the common one.
*
* @internal
*/
export const ByteUtils: ByteUtils = hasGlobalBuffer ? nodeJsByteUtils : webByteUtils;
export class BSONDataView extends DataView {
static fromUint8Array(input: Uint8Array) {
return new DataView(input.buffer, input.byteOffset, input.byteLength);
}
}

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import { BSONError } from '../error';
type NodeJsEncoding = 'base64' | 'hex' | 'utf8' | 'binary';
type NodeJsBuffer = ArrayBufferView &
Uint8Array & {
write(string: string, offset: number, length: undefined, encoding: 'utf8'): number;
copy(target: Uint8Array, targetStart: number, sourceStart: number, sourceEnd: number): number;
toString: (this: Uint8Array, encoding: NodeJsEncoding, start?: number, end?: number) => string;
equals: (this: Uint8Array, other: Uint8Array) => boolean;
};
type NodeJsBufferConstructor = Omit<Uint8ArrayConstructor, 'from'> & {
alloc: (size: number) => NodeJsBuffer;
from(array: number[]): NodeJsBuffer;
from(array: Uint8Array): NodeJsBuffer;
from(array: ArrayBuffer): NodeJsBuffer;
from(array: ArrayBuffer, byteOffset: number, byteLength: number): NodeJsBuffer;
from(base64: string, encoding: NodeJsEncoding): NodeJsBuffer;
byteLength(input: string, encoding: 'utf8'): number;
isBuffer(value: unknown): value is NodeJsBuffer;
};
// This can be nullish, but we gate the nodejs functions on being exported whether or not this exists
// Node.js global
declare const Buffer: NodeJsBufferConstructor;
declare const require: (mod: 'crypto') => { randomBytes: (byteLength: number) => Uint8Array };
/** @internal */
export function nodejsMathRandomBytes(byteLength: number) {
return nodeJsByteUtils.fromNumberArray(
Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))
);
}
/**
* @internal
* WARNING: REQUIRE WILL BE REWRITTEN
*
* This code is carefully used by require_rewriter.mjs any modifications must be reflected in the plugin.
*
* @remarks
* "crypto" is the only dependency BSON needs. This presents a problem for creating a bundle of the BSON library
* in an es module format that can be used both on the browser and in Node.js. In Node.js when BSON is imported as
* an es module, there will be no global require function defined, making the code below fallback to the much less desireable math.random bytes.
* In order to make our es module bundle work as expected on Node.js we need to change this `require()` to a dynamic import, and the dynamic
* import must be top-level awaited since es modules are async. So we rely on a custom rollup plugin to seek out the following lines of code
* and replace `require` with `await import` and the IIFE line (`nodejsRandomBytes = (() => { ... })()`) with `nodejsRandomBytes = await (async () => { ... })()`
* when generating an es module bundle.
*/
const nodejsRandomBytes: (byteLength: number) => Uint8Array = (() => {
try {
return require('crypto').randomBytes;
} catch {
return nodejsMathRandomBytes;
}
})();
/** @internal */
export const nodeJsByteUtils = {
toLocalBufferType(potentialBuffer: Uint8Array | NodeJsBuffer | ArrayBuffer): NodeJsBuffer {
if (Buffer.isBuffer(potentialBuffer)) {
return potentialBuffer;
}
if (ArrayBuffer.isView(potentialBuffer)) {
return Buffer.from(
potentialBuffer.buffer,
potentialBuffer.byteOffset,
potentialBuffer.byteLength
);
}
const stringTag =
potentialBuffer?.[Symbol.toStringTag] ?? Object.prototype.toString.call(potentialBuffer);
if (
stringTag === 'ArrayBuffer' ||
stringTag === 'SharedArrayBuffer' ||
stringTag === '[object ArrayBuffer]' ||
stringTag === '[object SharedArrayBuffer]'
) {
return Buffer.from(potentialBuffer);
}
throw new BSONError(`Cannot create Buffer from ${String(potentialBuffer)}`);
},
allocate(size: number): NodeJsBuffer {
return Buffer.alloc(size);
},
equals(a: Uint8Array, b: Uint8Array): boolean {
return nodeJsByteUtils.toLocalBufferType(a).equals(b);
},
fromNumberArray(array: number[]): NodeJsBuffer {
return Buffer.from(array);
},
fromBase64(base64: string): NodeJsBuffer {
return Buffer.from(base64, 'base64');
},
toBase64(buffer: Uint8Array): string {
return nodeJsByteUtils.toLocalBufferType(buffer).toString('base64');
},
/** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
fromISO88591(codePoints: string): NodeJsBuffer {
return Buffer.from(codePoints, 'binary');
},
/** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
toISO88591(buffer: Uint8Array): string {
return nodeJsByteUtils.toLocalBufferType(buffer).toString('binary');
},
fromHex(hex: string): NodeJsBuffer {
return Buffer.from(hex, 'hex');
},
toHex(buffer: Uint8Array): string {
return nodeJsByteUtils.toLocalBufferType(buffer).toString('hex');
},
fromUTF8(text: string): NodeJsBuffer {
return Buffer.from(text, 'utf8');
},
toUTF8(buffer: Uint8Array, start: number, end: number): string {
return nodeJsByteUtils.toLocalBufferType(buffer).toString('utf8', start, end);
},
utf8ByteLength(input: string): number {
return Buffer.byteLength(input, 'utf8');
},
encodeUTF8Into(buffer: Uint8Array, source: string, byteOffset: number): number {
return nodeJsByteUtils.toLocalBufferType(buffer).write(source, byteOffset, undefined, 'utf8');
},
randomBytes: nodejsRandomBytes
};

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import { BSONError } from '../error';
type TextDecoder = {
readonly encoding: string;
readonly fatal: boolean;
readonly ignoreBOM: boolean;
decode(input?: Uint8Array): string;
};
type TextDecoderConstructor = {
new (label: 'utf8', options: { fatal: boolean; ignoreBOM?: boolean }): TextDecoder;
};
type TextEncoder = {
readonly encoding: string;
encode(input?: string): Uint8Array;
};
type TextEncoderConstructor = {
new (): TextEncoder;
};
// Web global
declare const TextDecoder: TextDecoderConstructor;
declare const TextEncoder: TextEncoderConstructor;
declare const atob: (base64: string) => string;
declare const btoa: (binary: string) => string;
type ArrayBufferViewWithTag = ArrayBufferView & {
[Symbol.toStringTag]?: string;
};
function isReactNative() {
const { navigator } = globalThis as { navigator?: { product?: string } };
return typeof navigator === 'object' && navigator.product === 'ReactNative';
}
/** @internal */
export function webMathRandomBytes(byteLength: number) {
if (byteLength < 0) {
throw new RangeError(`The argument 'byteLength' is invalid. Received ${byteLength}`);
}
return webByteUtils.fromNumberArray(
Array.from({ length: byteLength }, () => Math.floor(Math.random() * 256))
);
}
/** @internal */
const webRandomBytes: (byteLength: number) => Uint8Array = (() => {
const { crypto } = globalThis as {
crypto?: { getRandomValues?: (space: Uint8Array) => Uint8Array };
};
if (crypto != null && typeof crypto.getRandomValues === 'function') {
return (byteLength: number) => {
// @ts-expect-error: crypto.getRandomValues cannot actually be null here
// You cannot separate getRandomValues from crypto (need to have this === crypto)
return crypto.getRandomValues(webByteUtils.allocate(byteLength));
};
} else {
if (isReactNative()) {
const { console } = globalThis as { console?: { warn?: (message: string) => void } };
console?.warn?.(
'BSON: For React Native please polyfill crypto.getRandomValues, e.g. using: https://www.npmjs.com/package/react-native-get-random-values.'
);
}
return webMathRandomBytes;
}
})();
const HEX_DIGIT = /(\d|[a-f])/i;
/** @internal */
export const webByteUtils = {
toLocalBufferType(
potentialUint8array: Uint8Array | ArrayBufferViewWithTag | ArrayBuffer
): Uint8Array {
const stringTag =
potentialUint8array?.[Symbol.toStringTag] ??
Object.prototype.toString.call(potentialUint8array);
if (stringTag === 'Uint8Array') {
return potentialUint8array as Uint8Array;
}
if (ArrayBuffer.isView(potentialUint8array)) {
return new Uint8Array(
potentialUint8array.buffer.slice(
potentialUint8array.byteOffset,
potentialUint8array.byteOffset + potentialUint8array.byteLength
)
);
}
if (
stringTag === 'ArrayBuffer' ||
stringTag === 'SharedArrayBuffer' ||
stringTag === '[object ArrayBuffer]' ||
stringTag === '[object SharedArrayBuffer]'
) {
return new Uint8Array(potentialUint8array);
}
throw new BSONError(`Cannot make a Uint8Array from ${String(potentialUint8array)}`);
},
allocate(size: number): Uint8Array {
if (typeof size !== 'number') {
throw new TypeError(`The "size" argument must be of type number. Received ${String(size)}`);
}
return new Uint8Array(size);
},
equals(a: Uint8Array, b: Uint8Array): boolean {
if (a.byteLength !== b.byteLength) {
return false;
}
for (let i = 0; i < a.byteLength; i++) {
if (a[i] !== b[i]) {
return false;
}
}
return true;
},
fromNumberArray(array: number[]): Uint8Array {
return Uint8Array.from(array);
},
fromBase64(base64: string): Uint8Array {
return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
},
toBase64(uint8array: Uint8Array): string {
return btoa(webByteUtils.toISO88591(uint8array));
},
/** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
fromISO88591(codePoints: string): Uint8Array {
return Uint8Array.from(codePoints, c => c.charCodeAt(0) & 0xff);
},
/** **Legacy** binary strings are an outdated method of data transfer. Do not add public API support for interpreting this format */
toISO88591(uint8array: Uint8Array): string {
return Array.from(Uint16Array.from(uint8array), b => String.fromCharCode(b)).join('');
},
fromHex(hex: string): Uint8Array {
const evenLengthHex = hex.length % 2 === 0 ? hex : hex.slice(0, hex.length - 1);
const buffer = [];
for (let i = 0; i < evenLengthHex.length; i += 2) {
const firstDigit = evenLengthHex[i];
const secondDigit = evenLengthHex[i + 1];
if (!HEX_DIGIT.test(firstDigit)) {
break;
}
if (!HEX_DIGIT.test(secondDigit)) {
break;
}
const hexDigit = Number.parseInt(`${firstDigit}${secondDigit}`, 16);
buffer.push(hexDigit);
}
return Uint8Array.from(buffer);
},
toHex(uint8array: Uint8Array): string {
return Array.from(uint8array, byte => byte.toString(16).padStart(2, '0')).join('');
},
fromUTF8(text: string): Uint8Array {
return new TextEncoder().encode(text);
},
toUTF8(uint8array: Uint8Array, start: number, end: number): string {
return new TextDecoder('utf8', { fatal: false }).decode(uint8array.slice(start, end));
},
utf8ByteLength(input: string): number {
return webByteUtils.fromUTF8(input).byteLength;
},
encodeUTF8Into(buffer: Uint8Array, source: string, byteOffset: number): number {
const bytes = webByteUtils.fromUTF8(source);
buffer.set(bytes, byteOffset);
return bytes.byteLength;
},
randomBytes: webRandomBytes
};

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const FIRST_BIT = 0x80;
const FIRST_TWO_BITS = 0xc0;
const FIRST_THREE_BITS = 0xe0;
const FIRST_FOUR_BITS = 0xf0;
const FIRST_FIVE_BITS = 0xf8;
const TWO_BIT_CHAR = 0xc0;
const THREE_BIT_CHAR = 0xe0;
const FOUR_BIT_CHAR = 0xf0;
const CONTINUING_CHAR = 0x80;
/**
* Determines if the passed in bytes are valid utf8
* @param bytes - An array of 8-bit bytes. Must be indexable and have length property
* @param start - The index to start validating
* @param end - The index to end validating
*/
export function validateUtf8(
bytes: { [index: number]: number },
start: number,
end: number
): boolean {
let continuation = 0;
for (let i = start; i < end; i += 1) {
const byte = bytes[i];
if (continuation) {
if ((byte & FIRST_TWO_BITS) !== CONTINUING_CHAR) {
return false;
}
continuation -= 1;
} else if (byte & FIRST_BIT) {
if ((byte & FIRST_THREE_BITS) === TWO_BIT_CHAR) {
continuation = 1;
} else if ((byte & FIRST_FOUR_BITS) === THREE_BIT_CHAR) {
continuation = 2;
} else if ((byte & FIRST_FIVE_BITS) === FOUR_BIT_CHAR) {
continuation = 3;
} else {
return false;
}
}
}
return !continuation;
}

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Copyright Mathias Bynens <https://mathiasbynens.be/>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# base64 [![Build status](https://travis-ci.org/mathiasbynens/base64.svg?branch=master)](https://travis-ci.org/mathiasbynens/base64) [![Code coverage status](http://img.shields.io/coveralls/mathiasbynens/base64/master.svg)](https://coveralls.io/r/mathiasbynens/base64)
_base64_ is a robust base64 encoder/decoder that is fully compatible with [`atob()` and `btoa()`](https://html.spec.whatwg.org/multipage/webappapis.html#atob), written in JavaScript. The base64-encoding and -decoding algorithms it uses are fully [RFC 4648](https://tools.ietf.org/html/rfc4648#section-4) compliant.
## Installation
Via [npm](https://www.npmjs.com/):
```bash
npm install base-64
```
In a browser:
```html
<script src="base64.js"></script>
```
In [Narwhal](http://narwhaljs.org/), [Node.js](https://nodejs.org/), and [RingoJS](http://ringojs.org/):
```js
var base64 = require('base-64');
```
In [Rhino](http://www.mozilla.org/rhino/):
```js
load('base64.js');
```
Using an AMD loader like [RequireJS](http://requirejs.org/):
```js
require(
{
'paths': {
'base64': 'path/to/base64'
}
},
['base64'],
function(base64) {
console.log(base64);
}
);
```
## API
### `base64.version`
A string representing the semantic version number.
### `base64.encode(input)`
This function takes a byte string (the `input` parameter) and encodes it according to base64. The input data must be in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values `0x00` to `0xFF`. The `base64.encode()` function is designed to be fully compatible with [`btoa()` as described in the HTML Standard](https://html.spec.whatwg.org/multipage/webappapis.html#dom-windowbase64-btoa).
```js
var encodedData = base64.encode(input);
```
To base64-encode any Unicode string, [encode it as UTF-8 first](https://github.com/mathiasbynens/utf8.js#utf8encodestring):
```js
var base64 = require('base-64');
var utf8 = require('utf8');
var text = 'foo © bar 𝌆 baz';
var bytes = utf8.encode(text);
var encoded = base64.encode(bytes);
console.log(encoded);
// → 'Zm9vIMKpIGJhciDwnYyGIGJheg=='
```
### `base64.decode(input)`
This function takes a base64-encoded string (the `input` parameter) and decodes it. The return value is in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values `0x00` to `0xFF`. The `base64.decode()` function is designed to be fully compatible with [`atob()` as described in the HTML Standard](https://html.spec.whatwg.org/multipage/webappapis.html#dom-windowbase64-atob).
```js
var decodedData = base64.decode(encodedData);
```
To base64-decode UTF-8-encoded data back into a Unicode string, [UTF-8-decode it](https://github.com/mathiasbynens/utf8.js#utf8decodebytestring) after base64-decoding it:
```js
var encoded = 'Zm9vIMKpIGJhciDwnYyGIGJheg==';
var bytes = base64.decode(encoded);
var text = utf8.decode(bytes);
console.log(text);
// → 'foo © bar 𝌆 baz'
```
## Support
_base64_ is designed to work in at least Node.js v0.10.0, Narwhal 0.3.2, RingoJS 0.8-0.9, PhantomJS 1.9.0, Rhino 1.7RC4, as well as old and modern versions of Chrome, Firefox, Safari, Opera, and Internet Explorer.
## Unit tests & code coverage
After cloning this repository, run `npm install` to install the dependencies needed for development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`.
Once thats done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use `grunt test`.
To generate the code coverage report, use `grunt cover`.
## Author
| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
|---|
| [Mathias Bynens](https://mathiasbynens.be/) |
## License
_base64_ is available under the [MIT](https://mths.be/mit) license.

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/*! https://mths.be/base64 v1.0.0 by @mathias | MIT license */
;(function(root) {
// Detect free variables `exports`.
var freeExports = typeof exports == 'object' && exports;
// Detect free variable `module`.
var freeModule = typeof module == 'object' && module &&
module.exports == freeExports && module;
/*--------------------------------------------------------------------------*/
var InvalidCharacterError = function(message) {
this.message = message;
};
InvalidCharacterError.prototype = new Error;
InvalidCharacterError.prototype.name = 'InvalidCharacterError';
var error = function(message) {
// Note: the error messages used throughout this file match those used by
// the native `atob`/`btoa` implementation in Chromium.
throw new InvalidCharacterError(message);
};
var TABLE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
// http://whatwg.org/html/common-microsyntaxes.html#space-character
var REGEX_SPACE_CHARACTERS = /[\t\n\f\r ]/g;
// `decode` is designed to be fully compatible with `atob` as described in the
// HTML Standard. http://whatwg.org/html/webappapis.html#dom-windowbase64-atob
// The optimized base64-decoding algorithm used is based on @atks excellent
// implementation. https://gist.github.com/atk/1020396
var decode = function(input) {
input = String(input)
.replace(REGEX_SPACE_CHARACTERS, '');
var length = input.length;
if (length % 4 == 0) {
input = input.replace(/==?$/, '');
length = input.length;
}
if (
length % 4 == 1 ||
// http://whatwg.org/C#alphanumeric-ascii-characters
/[^+a-zA-Z0-9/]/.test(input)
) {
error(
'Invalid character: the string to be decoded is not correctly encoded.'
);
}
var bitCounter = 0;
var bitStorage;
var buffer;
var output = '';
var position = -1;
while (++position < length) {
buffer = TABLE.indexOf(input.charAt(position));
bitStorage = bitCounter % 4 ? bitStorage * 64 + buffer : buffer;
// Unless this is the first of a group of 4 characters…
if (bitCounter++ % 4) {
// …convert the first 8 bits to a single ASCII character.
output += String.fromCharCode(
0xFF & bitStorage >> (-2 * bitCounter & 6)
);
}
}
return output;
};
// `encode` is designed to be fully compatible with `btoa` as described in the
// HTML Standard: http://whatwg.org/html/webappapis.html#dom-windowbase64-btoa
var encode = function(input) {
input = String(input);
if (/[^\0-\xFF]/.test(input)) {
// Note: no need to special-case astral symbols here, as surrogates are
// matched, and the input is supposed to only contain ASCII anyway.
error(
'The string to be encoded contains characters outside of the ' +
'Latin1 range.'
);
}
var padding = input.length % 3;
var output = '';
var position = -1;
var a;
var b;
var c;
var buffer;
// Make sure any padding is handled outside of the loop.
var length = input.length - padding;
while (++position < length) {
// Read three bytes, i.e. 24 bits.
a = input.charCodeAt(position) << 16;
b = input.charCodeAt(++position) << 8;
c = input.charCodeAt(++position);
buffer = a + b + c;
// Turn the 24 bits into four chunks of 6 bits each, and append the
// matching character for each of them to the output.
output += (
TABLE.charAt(buffer >> 18 & 0x3F) +
TABLE.charAt(buffer >> 12 & 0x3F) +
TABLE.charAt(buffer >> 6 & 0x3F) +
TABLE.charAt(buffer & 0x3F)
);
}
if (padding == 2) {
a = input.charCodeAt(position) << 8;
b = input.charCodeAt(++position);
buffer = a + b;
output += (
TABLE.charAt(buffer >> 10) +
TABLE.charAt((buffer >> 4) & 0x3F) +
TABLE.charAt((buffer << 2) & 0x3F) +
'='
);
} else if (padding == 1) {
buffer = input.charCodeAt(position);
output += (
TABLE.charAt(buffer >> 2) +
TABLE.charAt((buffer << 4) & 0x3F) +
'=='
);
}
return output;
};
var base64 = {
'encode': encode,
'decode': decode,
'version': '1.0.0'
};
// Some AMD build optimizers, like r.js, check for specific condition patterns
// like the following:
if (
typeof define == 'function' &&
typeof define.amd == 'object' &&
define.amd
) {
define(function() {
return base64;
});
} else if (freeExports && !freeExports.nodeType) {
if (freeModule) { // in Node.js or RingoJS v0.8.0+
freeModule.exports = base64;
} else { // in Narwhal or RingoJS v0.7.0-
for (var key in base64) {
base64.hasOwnProperty(key) && (freeExports[key] = base64[key]);
}
}
} else { // in Rhino or a web browser
root.base64 = base64;
}
}(this));

43
VISUALIZACION/node_modules/bson/vendor/base64/package.json generated vendored Executable file
View file

@ -0,0 +1,43 @@
{
"name": "base-64",
"version": "1.0.0",
"description": "A robust base64 encoder/decoder that is fully compatible with `atob()` and `btoa()`, written in JavaScript.",
"homepage": "https://mths.be/base64",
"main": "base64.js",
"keywords": [
"codec",
"decoder",
"encoder",
"base64",
"atob",
"btoa"
],
"license": "MIT",
"author": {
"name": "Mathias Bynens",
"url": "https://mathiasbynens.be/"
},
"repository": {
"type": "git",
"url": "https://github.com/mathiasbynens/base64.git"
},
"bugs": "https://github.com/mathiasbynens/base64/issues",
"files": [
"LICENSE-MIT.txt",
"base64.js"
],
"scripts": {
"test": "mocha tests/tests.js",
"build": "grunt build"
},
"devDependencies": {
"coveralls": "^2.11.4",
"grunt": "^0.4.5",
"grunt-cli": "^1.3.2",
"grunt-shell": "^1.1.2",
"grunt-template": "^0.2.3",
"istanbul": "^0.4.0",
"mocha": "^6.2.0",
"regenerate": "^1.2.1"
}
}

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@ -0,0 +1,237 @@
The encoding indexes, algorithms, and many comments in the code
derive from the Encoding Standard https://encoding.spec.whatwg.org/
Otherwise, the code of this repository is released under the Unlicense
license and is also dual-licensed under an Apache 2.0 license. Both
are included below.
# Unlicense
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>
# Apache 2.0 License
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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unless required by applicable law (such as deliberate and grossly
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APPENDIX: How to apply the Apache License to your work.
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boilerplate notice, with the fields enclosed by brackets "[]"
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See the License for the specific language governing permissions and
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View file

@ -0,0 +1,111 @@
text-encoding
==============
This is a polyfill for the [Encoding Living
Standard](https://encoding.spec.whatwg.org/) API for the Web, allowing
encoding and decoding of textual data to and from Typed Array buffers
for binary data in JavaScript.
By default it adheres to the spec and does not support *encoding* to
legacy encodings, only *decoding*. It is also implemented to match the
specification's algorithms, rather than for performance. The intended
use is within Web pages, so it has no dependency on server frameworks
or particular module schemes.
Basic examples and tests are included.
### Install ###
There are a few ways you can get and use the `text-encoding` library.
### HTML Page Usage ###
Clone the repo and include the files directly:
```html
<!-- Required for non-UTF encodings -->
<script src="encoding-indexes.js"></script>
<script src="encoding.js"></script>
```
This is the only use case the developer cares about. If you want those
fancy module and/or package manager things that are popular these days
you should probably use a different library.
#### Package Managers ####
The package is published to **npm** and **bower** as `text-encoding`.
Use through these is not really supported, since they aren't used by
the developer of the library. Using `require()` in interesting ways
probably breaks. Patches welcome, as long as they don't break the
basic use of the files via `<script>`.
### API Overview ###
Basic Usage
```js
var uint8array = new TextEncoder().encode(string);
var string = new TextDecoder(encoding).decode(uint8array);
```
Streaming Decode
```js
var string = "", decoder = new TextDecoder(encoding), buffer;
while (buffer = next_chunk()) {
string += decoder.decode(buffer, {stream:true});
}
string += decoder.decode(); // finish the stream
```
### Encodings ###
All encodings from the Encoding specification are supported:
utf-8 ibm866 iso-8859-2 iso-8859-3 iso-8859-4 iso-8859-5 iso-8859-6
iso-8859-7 iso-8859-8 iso-8859-8-i iso-8859-10 iso-8859-13 iso-8859-14
iso-8859-15 iso-8859-16 koi8-r koi8-u macintosh windows-874
windows-1250 windows-1251 windows-1252 windows-1253 windows-1254
windows-1255 windows-1256 windows-1257 windows-1258 x-mac-cyrillic
gb18030 hz-gb-2312 big5 euc-jp iso-2022-jp shift_jis euc-kr
replacement utf-16be utf-16le x-user-defined
(Some encodings may be supported under other names, e.g. ascii,
iso-8859-1, etc. See [Encoding](https://encoding.spec.whatwg.org/) for
additional labels for each encoding.)
Encodings other than **utf-8**, **utf-16le** and **utf-16be** require
an additional `encoding-indexes.js` file to be included. It is rather
large (596kB uncompressed, 188kB gzipped); portions may be deleted if
support for some encodings is not required.
### Non-Standard Behavior ###
As required by the specification, only encoding to **utf-8** is
supported. If you want to try it out, you can force a non-standard
behavior by passing the `NONSTANDARD_allowLegacyEncoding` option to
TextEncoder and a label. For example:
```js
var uint8array = new TextEncoder(
'windows-1252', { NONSTANDARD_allowLegacyEncoding: true }).encode(text);
```
But note that the above won't work if you're using the polyfill in a
browser that natively supports the TextEncoder API natively, since the
polyfill won't be used!
You can force the polyfill to be used by using this before the polyfill:
```html
<script>
window.TextEncoder = window.TextDecoder = null;
</script>
```
To support the legacy encodings (which may be stateful), the
TextEncoder `encode()` method accepts an optional dictionary and
`stream` option, e.g. `encoder.encode(string, {stream: true});` This
is not needed for standard encoding since the input is always in
complete code points.

View file

@ -0,0 +1,9 @@
// This is free and unencumbered software released into the public domain.
// See LICENSE.md for more information.
var encoding = require("./lib/encoding.js");
module.exports = {
TextEncoder: encoding.TextEncoder,
TextDecoder: encoding.TextDecoder,
};

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{
"name": "text-encoding",
"author": "Joshua Bell <inexorabletash@gmail.com>",
"contributors": [
"Joshua Bell <inexorabletash@gmail.com>",
"Rick Eyre <rick.eyre@outlook.com>",
"Eugen Podaru <eugen.podaru@live.com>",
"Filip Dupanović <filip.dupanovic@gmail.com>",
"Anne van Kesteren <annevk@annevk.nl>",
"Author: Francis Avila <francisga@gmail.com>",
"Michael J. Ryan <tracker1@gmail.com>",
"Pierre Queinnec <pierre@queinnec.org>",
"Zack Weinberg <zackw@panix.com>"
],
"version": "0.7.0",
"description": "Polyfill for the Encoding Living Standard's API.",
"main": "index.js",
"files": [
"index.js",
"lib/encoding.js",
"lib/encoding-indexes.js"
],
"repository": {
"type": "git",
"url": "https://github.com/inexorabletash/text-encoding.git"
},
"keywords": [
"encoding",
"decoding",
"living standard"
],
"bugs": {
"url": "https://github.com/inexorabletash/text-encoding/issues"
},
"homepage": "https://github.com/inexorabletash/text-encoding",
"license": "(Unlicense OR Apache-2.0)"
}