mirror of
https://github.com/ergochat/ergo.git
synced 2024-11-23 04:19:25 +01:00
ee7f818674
* implement SASL OAUTHBEARER and draft/bearer * Upgrade JWT lib * Fix an edge case in SASL EXTERNAL * Accept longer SASL responses * review fix: allow multiple token definitions * enhance tests * use SASL utilities from irc-go * test expired tokens
168 lines
7.6 KiB
Markdown
168 lines
7.6 KiB
Markdown
# jwt-go
|
|
|
|
[](https://github.com/golang-jwt/jwt/actions/workflows/build.yml)
|
|
[](https://pkg.go.dev/github.com/golang-jwt/jwt/v5)
|
|
[](https://coveralls.io/github/golang-jwt/jwt?branch=main)
|
|
|
|
A [go](http://www.golang.org) (or 'golang' for search engine friendliness)
|
|
implementation of [JSON Web
|
|
Tokens](https://datatracker.ietf.org/doc/html/rfc7519).
|
|
|
|
Starting with [v4.0.0](https://github.com/golang-jwt/jwt/releases/tag/v4.0.0)
|
|
this project adds Go module support, but maintains backwards compatibility with
|
|
older `v3.x.y` tags and upstream `github.com/dgrijalva/jwt-go`. See the
|
|
[`MIGRATION_GUIDE.md`](./MIGRATION_GUIDE.md) for more information. Version
|
|
v5.0.0 introduces major improvements to the validation of tokens, but is not
|
|
entirely backwards compatible.
|
|
|
|
> After the original author of the library suggested migrating the maintenance
|
|
> of `jwt-go`, a dedicated team of open source maintainers decided to clone the
|
|
> existing library into this repository. See
|
|
> [dgrijalva/jwt-go#462](https://github.com/dgrijalva/jwt-go/issues/462) for a
|
|
> detailed discussion on this topic.
|
|
|
|
|
|
**SECURITY NOTICE:** Some older versions of Go have a security issue in the
|
|
crypto/elliptic. Recommendation is to upgrade to at least 1.15 See issue
|
|
[dgrijalva/jwt-go#216](https://github.com/dgrijalva/jwt-go/issues/216) for more
|
|
detail.
|
|
|
|
**SECURITY NOTICE:** It's important that you [validate the `alg` presented is
|
|
what you
|
|
expect](https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries/).
|
|
This library attempts to make it easy to do the right thing by requiring key
|
|
types match the expected alg, but you should take the extra step to verify it in
|
|
your usage. See the examples provided.
|
|
|
|
### Supported Go versions
|
|
|
|
Our support of Go versions is aligned with Go's [version release
|
|
policy](https://golang.org/doc/devel/release#policy). So we will support a major
|
|
version of Go until there are two newer major releases. We no longer support
|
|
building jwt-go with unsupported Go versions, as these contain security
|
|
vulnerabilities which will not be fixed.
|
|
|
|
## What the heck is a JWT?
|
|
|
|
JWT.io has [a great introduction](https://jwt.io/introduction) to JSON Web
|
|
Tokens.
|
|
|
|
In short, it's a signed JSON object that does something useful (for example,
|
|
authentication). It's commonly used for `Bearer` tokens in Oauth 2. A token is
|
|
made of three parts, separated by `.`'s. The first two parts are JSON objects,
|
|
that have been [base64url](https://datatracker.ietf.org/doc/html/rfc4648)
|
|
encoded. The last part is the signature, encoded the same way.
|
|
|
|
The first part is called the header. It contains the necessary information for
|
|
verifying the last part, the signature. For example, which encryption method
|
|
was used for signing and what key was used.
|
|
|
|
The part in the middle is the interesting bit. It's called the Claims and
|
|
contains the actual stuff you care about. Refer to [RFC
|
|
7519](https://datatracker.ietf.org/doc/html/rfc7519) for information about
|
|
reserved keys and the proper way to add your own.
|
|
|
|
## What's in the box?
|
|
|
|
This library supports the parsing and verification as well as the generation and
|
|
signing of JWTs. Current supported signing algorithms are HMAC SHA, RSA,
|
|
RSA-PSS, and ECDSA, though hooks are present for adding your own.
|
|
|
|
## Installation Guidelines
|
|
|
|
1. To install the jwt package, you first need to have
|
|
[Go](https://go.dev/doc/install) installed, then you can use the command
|
|
below to add `jwt-go` as a dependency in your Go program.
|
|
|
|
```sh
|
|
go get -u github.com/golang-jwt/jwt/v5
|
|
```
|
|
|
|
2. Import it in your code:
|
|
|
|
```go
|
|
import "github.com/golang-jwt/jwt/v5"
|
|
```
|
|
|
|
## Usage
|
|
|
|
A detailed usage guide, including how to sign and verify tokens can be found on
|
|
our [documentation website](https://golang-jwt.github.io/jwt/usage/create/).
|
|
|
|
## Examples
|
|
|
|
See [the project documentation](https://pkg.go.dev/github.com/golang-jwt/jwt/v5)
|
|
for examples of usage:
|
|
|
|
* [Simple example of parsing and validating a
|
|
token](https://pkg.go.dev/github.com/golang-jwt/jwt/v5#example-Parse-Hmac)
|
|
* [Simple example of building and signing a
|
|
token](https://pkg.go.dev/github.com/golang-jwt/jwt/v5#example-New-Hmac)
|
|
* [Directory of
|
|
Examples](https://pkg.go.dev/github.com/golang-jwt/jwt/v5#pkg-examples)
|
|
|
|
## Compliance
|
|
|
|
This library was last reviewed to comply with [RFC
|
|
7519](https://datatracker.ietf.org/doc/html/rfc7519) dated May 2015 with a few
|
|
notable differences:
|
|
|
|
* In order to protect against accidental use of [Unsecured
|
|
JWTs](https://datatracker.ietf.org/doc/html/rfc7519#section-6), tokens using
|
|
`alg=none` will only be accepted if the constant
|
|
`jwt.UnsafeAllowNoneSignatureType` is provided as the key.
|
|
|
|
## Project Status & Versioning
|
|
|
|
This library is considered production ready. Feedback and feature requests are
|
|
appreciated. The API should be considered stable. There should be very few
|
|
backwards-incompatible changes outside of major version updates (and only with
|
|
good reason).
|
|
|
|
This project uses [Semantic Versioning 2.0.0](http://semver.org). Accepted pull
|
|
requests will land on `main`. Periodically, versions will be tagged from
|
|
`main`. You can find all the releases on [the project releases
|
|
page](https://github.com/golang-jwt/jwt/releases).
|
|
|
|
**BREAKING CHANGES:*** A full list of breaking changes is available in
|
|
`VERSION_HISTORY.md`. See `MIGRATION_GUIDE.md` for more information on updating
|
|
your code.
|
|
|
|
## Extensions
|
|
|
|
This library publishes all the necessary components for adding your own signing
|
|
methods or key functions. Simply implement the `SigningMethod` interface and
|
|
register a factory method using `RegisterSigningMethod` or provide a
|
|
`jwt.Keyfunc`.
|
|
|
|
A common use case would be integrating with different 3rd party signature
|
|
providers, like key management services from various cloud providers or Hardware
|
|
Security Modules (HSMs) or to implement additional standards.
|
|
|
|
| Extension | Purpose | Repo |
|
|
| --------- | -------------------------------------------------------------------------------------------------------- | ------------------------------------------ |
|
|
| GCP | Integrates with multiple Google Cloud Platform signing tools (AppEngine, IAM API, Cloud KMS) | https://github.com/someone1/gcp-jwt-go |
|
|
| AWS | Integrates with AWS Key Management Service, KMS | https://github.com/matelang/jwt-go-aws-kms |
|
|
| JWKS | Provides support for JWKS ([RFC 7517](https://datatracker.ietf.org/doc/html/rfc7517)) as a `jwt.Keyfunc` | https://github.com/MicahParks/keyfunc |
|
|
|
|
*Disclaimer*: Unless otherwise specified, these integrations are maintained by
|
|
third parties and should not be considered as a primary offer by any of the
|
|
mentioned cloud providers
|
|
|
|
## More
|
|
|
|
Go package documentation can be found [on
|
|
pkg.go.dev](https://pkg.go.dev/github.com/golang-jwt/jwt/v5). Additional
|
|
documentation can be found on [our project
|
|
page](https://golang-jwt.github.io/jwt/).
|
|
|
|
The command line utility included in this project (cmd/jwt) provides a
|
|
straightforward example of token creation and parsing as well as a useful tool
|
|
for debugging your own integration. You'll also find several implementation
|
|
examples in the documentation.
|
|
|
|
[golang-jwt](https://github.com/orgs/golang-jwt) incorporates a modified version
|
|
of the JWT logo, which is distributed under the terms of the [MIT
|
|
License](https://github.com/jsonwebtoken/jsonwebtoken.github.io/blob/master/LICENSE.txt).
|