firesphere/silverstripe-graphql-jwt

This package is abandoned and no longer maintained. The author suggests using the firesphere/graphql-jwt package instead.

JWT Authentication for GraphQL

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Type:silverstripe-vendormodule

2.0.0-beta1 2019-01-04 00:09 UTC

README

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GraphQL JSON Web Token authenticator

This module provides a JWT-interface for creating JSON Web Tokens for authentication.

Installation

composer require firesphere/graphql-jwt

The default config is available in _config\config.yml.

To set your signer key and UID prefix, add the following to your .env:

JWT_PREFIX="[your secret prefix]"
JWT_SIGNER_KEY="[your secret key]"

You can also use public/private key files, using the following:

JWT_SIGNER_KEY="/path/to/private.key"
JWT_PUBLIC_KEY="/path/to/public.key"

Currently, only RSA keys are supported. ECDSA is not supported. The keys in the test-folder are generated by an online RSA key generator.

The signer key for HMAC can be of any length (keys longer than B bytes are first hashed using H). However, less than L bytes is strongly discouraged as it would decrease the security strength of the function.. Thus, for SHA-256 the signer key should be between 16 and 64 bytes in length.

The keys in tests/keys should not be trusted!

Log in

To generate a JWT token, send a login request to the createToken mutator:

mutation {
  createToken(Email: "admin", Password: "password") {
    Token, // ...request or you won't have a token
    ID,
    FirstName,
    Surname
  }
}

Validate token

If you have an app and want to validate your token, you can address the validateToken method:

query validateToken {
  validateToken {
    Valid
    Message
    Code
  }
}

It only needs to call the endpoint. The token should be in the header, via your middleware for the request, as a Authorization: Bearer [token]. If the token is valid, you'll get a response like this:

{
  "data": {
    "validateToken": {
      "Valid": true,
      "Message": "",
      "Code": 200,
      "__typename": "ValidateToken"
    }
  }
}

If the token is invalid, Valid will be false.

Anonymous tokens

Although not advised, it's possible to use anonymous tokens. A member ID of 0 will be returned, along with "Anonymous" as a name. To enable anonymous tokens, add the following to your configuration .yml:

Firesphere\GraphQLJWT\JWTAuthenticator:
  anonymous_allowed: true

Enable CORS

To use JWT, CORS needs to be enabled. This can be done by adding the following to your configuration .yml:

SilverStripe\GraphQL\Controller:
  cors:
    Enabled: true
    Allow-Origin: "*"
    Allow-Headers: "Authorization, Content-Type"
    Allow-Methods: "GET, POST, OPTIONS"
    Max-Age: 86400 # ...in seconds

Usage

After logging in, you will receive a token which can be used for further requests. This token should be in the header of the request with the Bearer as signature:

Authorization: Bearer [token]

Security

Currently, the default method for encrypting the JWT is with SHA256. JWT is signed with multiple factors; including the host, audience (app/remote user), a secret key and a timeframe within which the token is valid. Only one device can be logged in at the time.

Supported services

By default, JWT only supports login. As it's tokens can not be disabled, nor used for password changes or resets.

Caveats

When using php under CGI/FastCGI mode with Apache, the Authorization header might not work correctly, see issue#15. The workaround is simple, just add SetEnvIf Authorization .+ HTTP_AUTHORIZATION=$0 in your .htaccess file (refer).

Examples

A Postman collection can be found in the extra folder.

License

This module is published under BSD 3-clause license, although these are not in the actual classes, the license does apply:

http://www.opensource.org/licenses/BSD-3-Clause

Copyright (c) 2012-NOW(), Simon "Firesphere" Erkelens

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Cow?

Of course!

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