Fiber OIDC

Fiber OIDC Middleware.

N.B. It does things like use open plaintext cookies, and doesn't have a full set of hooks for all occasions. That said, these things are easy to fix with a PR that enables support for your use case.

Quickstart

To install: go get github.com/kncept/fiber-oidc

Example snippet:

	fiberOidc, err := fiberoidc.New(ctx, &fiberoidc.Config{
		Issuer:         "https://accounts.google.com",
		ClientId:       os.Getenv("OIDC_CLIENT_ID"),
		ClientSecret:   os.Getenv("OIDC_CLIENT_SECRET"),
		RedirectUri:    "http://localhost:3000/oauth2/callback",
		AuthCookieName: "bearer-auth",
	})
	if err != nil {
		return nil, err
	}

	app.Get(fiberOidc.CallbackPath(), fiberOidc.CallbackHandler())
	app.Get("/", fiberOidc.UnprotectedRoute(), func(c *fiber.Ctx) error {
		subject := "no auth present"
		idToken := fiberoidc.IdTokenFromContext(c)
		if idToken != nil {
			subject = idToken.Subject
		}
		return c.Render("index", subject)
	})
	app.Get("/me", fiberOidc.ProtectedRoute(), func(c *fiber.Ctx) error {
		idToken := fiberoidc.IdTokenFromContext(c)
		return c.Render("index", idToken.Subject)
	})

You can access the id token in your handler by doing this: idToken := fiberoidc.IdTokenFromContext(c)

OIDC Library Implementation

This middleware is built over https://github.com/coreos/go-oidc, which provides support for the https://pkg.go.dev/golang.org/x/oauth2 package.

Handling extra claims

Use a struct something like this:

type OidcClaims struct {
   Subject  string `json:"sub"`
   Issuer   string `json:"iss"`
   Audience string `json:"aud"`

   Name string `json:"name,omitempty"`

   Email         string `json:"email,omitempty"`
   EmailVerified bool   `json:"email_verified,omitempty"`

   PoneNumber          string `json:"phone_number,omitempty"`
   PhoneNumberVerified bool   `json:"phone_number_verified,omitempty"`
}

with the following code snippet in your handler:

	idToken := fiberoidc.IdTokenFromContext(c)
    claims := &OidcClaims{}
    err = idToken.Claims(&claims)