// NewAuthorizerFromAuthorizationConfig returns the right sort of authorizer.Authorizer
// based on the authorizationMode xor an error. authorizationMode should be one of AuthorizationModeChoices.
func NewAuthorizerFromAuthorizationConfig(authorizationMode string, authorizationPolicyFile string) (authorizer.Authorizer, error) {
if authorizationPolicyFile != "" && authorizationMode != "ABAC" {
return nil, errors.New("Cannot specify --authorization_policy_file without mode ABAC")
}
// Keep cases in sync with constant list above.
switch authorizationMode {
case ModeAlwaysAllow:
return NewAlwaysAllowAuthorizer(), nil
case ModeAlwaysDeny:
return NewAlwaysDenyAuthorizer(), nil
case ModeABAC:
return abac.NewFromFile(authorizationPolicyFile)
default:
return nil, errors.New("Unknown authorization mode")
}
}
func newAuthorizerWithContents(t *testing.T, contents string) authorizer.Authorizer {
f, err := ioutil.TempFile("", "auth_test")
if err != nil {
t.Fatalf("unexpected error creating policyfile: %v", err)
}
f.Close()
defer os.Remove(f.Name())
if err := ioutil.WriteFile(f.Name(), []byte(contents), 0700); err != nil {
t.Fatalf("unexpected error writing policyfile: %v", err)
}
pl, err := abac.NewFromFile(f.Name())
if err != nil {
t.Fatalf("unexpected error creating authorizer from policyfile: %v", err)
}
return pl
}