fastify-basic-auth

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fastify-basic-auth

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Fastify Basic auth plugin

fastify-basic-auth 최신버젼 다운로드

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# @fastify/basic-auth

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A simple [Basic auth](https://datatracker.ietf.org/doc/html/rfc7617) plugin for Fastify.

## Install
```
npm i @fastify/basic-auth
```

### Compatibility
| Plugin version | Fastify version |
| ---------------|-----------------|
| `>=6.x`        | `^5.x`          |
| `^4.x`         | `^4.x`          |
| `>=1.x <4.x`   | `^3.x`          |
| `^0.x`         | `^2.x`          |
| `^0.x`         | `^1.x`          |

Please note that if a Fastify version is out of support, then so are the corresponding versions of this plugin
in the table above.
See [Fastify's LTS policy](https://github.com/fastify/fastify/blob/main/docs/Reference/LTS.md) for more details.

## Usage
This plugin decorates the fastify instance with a `basicAuth` function, which can be used inside any hook before a route handler, or with [`@fastify/auth`](https://github.com/fastify/fastify-auth).

```js
const fastify = require('fastify')()
const authenticate = {realm: 'Westeros'}
fastify.register(require('@fastify/basic-auth'), { validate, authenticate })
// `this` inside validate is `fastify`
function validate (username, password, req, reply, done) {
  if (username === 'Tyrion' && password === 'wine') {
    done()
  } else {
    done(new Error('Winter is coming'))
  }
}

fastify.after(() => {
  fastify.addHook('onRequest', fastify.basicAuth)

fastify.get('/', (req, reply) => {
    reply.send({ hello: 'world' })
  })
})
```

Promises and *async/await* are supported as well!
```js
const fastify = require('fastify')()
const authenticate = {realm: 'Westeros'}
fastify.register(require('@fastify/basic-auth'), { validate, authenticate })
async function validate (username, password, req, reply) {
  if (username !== 'Tyrion' || password !== 'wine') {
    return new Error('Winter is coming')
  }
}
```

Use with `onRequest`:
```js
const fastify = require('fastify')()
const authenticate = {realm: 'Westeros'}
fastify.register(require('@fastify/basic-auth'), { validate, authenticate })
async function validate (username, password, req, reply) {
  if (username !== 'Tyrion' || password !== 'wine') {
    return new Error('Winter is coming')
  }
}

fastify.after(() => {
  fastify.route({
    method: 'GET',
    url: '/',
    onRequest: fastify.basicAuth,
    handler: async (req, reply) => {
      return { hello: 'world' }
    }
  })
})
```

Use with [`@fastify/auth`](https://github.com/fastify/fastify-auth):
```js
const fastify = require('fastify')()
const authenticate = {realm: 'Westeros'}
fastify.register(require('@fastify/auth'))
fastify.register(require('@fastify/basic-auth'), { validate, authenticate })
async function validate (username, password, req, reply) {
  if (username !== 'Tyrion' || password !== 'wine') {
    return new Error('Winter is coming')
  }
}

fastify.after(() => {
  // use preHandler to authenticate all the routes
  fastify.addHook('preHandler', fastify.auth([fastify.basicAuth]))

fastify.route({
    method: 'GET',
    url: '/',
    // use onRequest to authenticate just this one
    onRequest: fastify.auth([fastify.basicAuth]),
    handler: async (req, reply) => {
      return { hello: 'world' }
    }
  })
})
```

### Custom error handler

On failed authentication, `@fastify/basic-auth` calls the Fastify
[generic error
handler](https://fastify.dev/docs/latest/Reference/Server/#seterrorhandler) with an error
and sets `err.statusCode` to `401`.

To properly `401` errors:

```js
fastify.setErrorHandler(function (err, req, reply) {
  if (err.statusCode === 401) {
    // This was unauthorized! Display the correct page/message
    reply.code(401).send({ was: 'unauthorized' })
    return
  }
  reply.send(err)
})
```

## Options

### `utf8` <Boolean> (optional, default: true)

User-ids or passwords with non-US-ASCII characters may cause issues
unless both parties agree on the encoding scheme. Setting `utf8` to
true sends the 'charset' parameter to prefer "UTF-8", increasing the
likelihood that clients will use that encoding.

### `strictCredentials` <Boolean> (optional, default: true)

Setting `strictCredentials` to false allows additional whitespaces at
the beginning, middle, and end of the authorization header.
This is a fallback option to ensure the same behavior as `@fastify/basic-auth`
version <=5.x.

### `validate` <Function> (required)

The `validate` function is called on each request made
and is passed the `username`, `password`, `req`, and `reply`
parameters, in that order. An optional fifth parameter, `done`, can be
used to signify a valid request when called with no arguments
or an invalid request when called with an `Error` object. Alternatively,
the `validate` function can return a promise, resolving for valid
requests and rejecting for invalid. This can also be achieved using
an `async/await` function, and throwing for invalid requests.

See code above for examples.

### `authenticate` <Boolean|Object> (optional, default: false)

The `authenticate` option adds the [`WWW-Authenticate` header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/WWW-Authenticate) and can set the `realm` value.

This can trigger client-side authentication interfaces, such as the browser authentication dialog.

Setting `authenticate` to `true` adds the header `WWW-Authenticate: Basic`. When `false`, no header is added (default).

When `proxyMode` is `true` it will use the [`Proxy-Authenticate`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Proxy-Authenticate) header instead.

```js
fastify.register(require('@fastify/basic-auth'), {
  validate,
  authenticate: true // WWW-Authenticate: Basic
})

fastify.register(require('@fastify/basic-auth'), {
  validate,
  proxyMode: true,
  authenticate: true // Proxy-Authenticate: Basic
})

fastify.register(require('@fastify/basic-auth'), {
  validate,
  authenticate: false // no authenticate header, same as omitting authenticate option
})
```

The `authenticate` option can have a `realm` key when supplied as an object.
If the `realm` key is supplied, it will be appended to the header value:

```js
fastify.register(require('@fastify/basic-auth'), {
  validate,
  authenticate: {realm: 'example'} // WWW-Authenticate: Basic realm="example"
})
```

The `realm` key can also be a function:

```js
fastify.register(require('@fastify/basic-auth'), {
  validate,
  authenticate: {
    realm(req) {
      return 'example' // WWW-Authenticate: Basic realm="example"
    }
  }
})
```

The `authenticate` object can include an optional `header` key to customize the header name, replacing the default `WWW-Authenticate`:

```js
fastify.register(require('@fastify/basic-auth'), {
  validate,
  authenticate: {
    header: 'Proxy-Authenticate' // Proxy-Authenticate: Basic
  }
})
```

### `proxyMode` Boolean (optional, default: false)

Setting the `proxyMode` to `true` will make the plugin implement [HTTP proxy authentication](https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Authentication#proxy_authentication), rather than resource authentication. In other words, the plugin will:

- read credentials from the `Proxy-Authorization` header rather than `Authorization`
- use `407` response status code instead of `401` to signal missing or invalid credentials
- use the `Proxy-Authenticate` header rather than `WWW-Authenticate` if the `authenticate` option is set

### `header` String (optional)

The `header` option specifies the header name to get credentials from for validation. If not specified it defaults to `Authorization` or `Proxy-Authorization` (according to the value of `proxyMode` option)

```js
fastify.register(require('@fastify/basic-auth'), {
  validate,
  header: 'x-forwarded-authorization'
})
```

## License

Licensed under [MIT](./LICENSE).

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