This module provides a JWT-interface for creating JSON Web Tokens for authentication.
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"Note: Relative paths will be relative to your BASE_PATH (prefixed with ./)
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!
Since admin/graphql is reserved exclusively for CMS graphql access, it will be necessary for you to register a custom schema for your front-end application, and apply the provided queries and mutations to that.
For example, given you've decided to create a schema named default at the url /graphql
(which is provided by the core recipe out of the box), all you need to do is
add the firesphere/graphql-jwt config to your schema.
---
Name: my-graphql-schema
---
SilverStripe\GraphQL\Schema\Schema:
schemas:
default:
src:
- 'firesphere/graphql-jwt: _graphql'
Controller: '%$SilverStripe\GraphQL\Controller.frontend'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
member {
firstName
surname
}
}
}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.
Although not advised, it's possible to use anonymous tokens. When using an anonymous authenticator, SilverStripe
will generate a default database record in the Members table with the Email anonymous and no permissions by default.
To enable anonymous tokens, add the following to your configuration .yml:
SilverStripe\Core\Injector\Injector:
Firesphere\GraphQLJWT\Authentication\CustomAuthenticatorRegistry:
properties:
CustomAuthenticators:
- Firesphere\GraphQLJWT\Authentication\AnonymousUserAuthenticatorYou can then create an anonymous login with the below query.
mutation {
createToken(email: "anonymous") {
token
}
}Note: If the default anonymous authenticator doesn't suit your purposes, you can inject any other
core Silverstripe CMS authenticator into CustomAuthenticators.
Warning: The default AnonymousUserAuthenticator is not appropriate for general usage, so don't
register this under the core Security class!
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 secondsAfter 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]
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.
By default, JWT only supports login. As its tokens can not be disabled, nor used for password changes or resets.
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).
A Postman collection can be found in the extra folder.
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.
Of course!
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