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package auth
import (
"0xacab.org/leap/vpnweb/pkg/web"
"github.com/auth0/go-jwt-middleware"
jwt "github.com/dgrijalva/jwt-go"
"log"
"net/http"
)
const anonAuth string = "anon"
const sipAuth string = "sip"
/* FIXME -- get this from configuration variables */
var jwtSecret = []byte("somethingverysecret")
func Authenticator(auth string) {
}
func RestrictedMiddleware(auth string, ch web.CertHandler) http.Handler {
jwtMiddleware := jwtmiddleware.New(jwtmiddleware.Options{
ValidationKeyGetter: func(token *jwt.Token) (interface{}, error) {
return jwtSecret, nil
},
// When set, the middleware verifies that tokens are signed with the specific signing algorithm
// If the signing method is not constant the ValidationKeyGetter callback can be used to implement additional checks
// Important to avoid security issues described here: https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/
SigningMethod: jwt.SigningMethodHS256,
})
switch auth {
case anonAuth:
return http.HandlerFunc(ch.CertResponder)
case sipAuth:
return jwtMiddleware.Handler(http.HandlerFunc(ch.CertResponder))
default:
log.Fatal("Unknown auth module: '", auth, "'. Should be one of: ", anonAuth, ", ", sipAuth, ".")
}
// should not get here
return nil
}
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