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package auth
import (
"0xacab.org/leap/vpnweb/pkg/auth/sip2"
"0xacab.org/leap/vpnweb/pkg/config"
"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 jwtSigningSecret = []byte("thesingingkey")
func bailOnBadAuthModule(module string) {
log.Fatal("Unknown auth module: '", module, "'. Should be one of: ", anonAuth, ", ", sipAuth, ".")
}
func Authenticator(opts *config.Opts) http.HandlerFunc {
switch opts.Auth {
case anonAuth:
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "no authentication in anon mode", http.StatusBadRequest)
})
case sipAuth:
return sip2.SipAuthenticator(opts)
default:
bailOnBadAuthModule(opts.Auth)
}
return nil
}
func RestrictedMiddleware(auth string, ch web.CertHandler) http.Handler {
jwtMiddleware := jwtmiddleware.New(jwtmiddleware.Options{
ValidationKeyGetter: func(token *jwt.Token) (interface{}, error) {
return jwtSigningSecret, nil
},
SigningMethod: jwt.SigningMethodHS256,
})
switch auth {
case anonAuth:
return http.HandlerFunc(ch.CertResponder)
case sipAuth:
return jwtMiddleware.Handler(http.HandlerFunc(ch.CertResponder))
default:
bailOnBadAuthModule(auth)
}
return nil
}
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