refactor: const int type stringers (#4588)

internal/authentication/util.go

@@ -1,15 +1,15 @@
 package authentication
 
-// LevelToString returns a string representation of an authentication.Level.
+// String returns a string representation of an authentication.Level.
-func LevelToString(level Level) string {
+func (l Level) String() string {
-	switch level {
+	switch l {
 	case NotAuthenticated:
 		return "not_authenticated"
 	case OneFactor:
 		return "one_factor"
 	case TwoFactor:
 		return "two_factor"
+	default:
+		return "invalid"
 	}
-
-	return "invalid"
 }

internal/authorization/access_control_rule.go

@@ -26,7 +26,7 @@ func NewAccessControlRule(pos int, rule schema.ACLRule, networksMap map[string][
 		Methods:  schemaMethodsToACL(rule.Methods),
 		Networks: schemaNetworksToACL(rule.Networks, networksMap, networksCacheMap),
 		Subjects: schemaSubjectsToACL(rule.Subjects),
-		Policy:   StringToLevel(rule.Policy),
+		Policy:   NewLevel(rule.Policy),
 	}
 
 	if len(r.Subjects) != 0 {

internal/authorization/authorizer.go

@@ -19,7 +19,7 @@ type Authorizer struct {
 // NewAuthorizer create an instance of authorizer with a given access control config.
 func NewAuthorizer(config *schema.Configuration) (authorizer *Authorizer) {
 	authorizer = &Authorizer{
-		defaultPolicy: StringToLevel(config.AccessControl.DefaultPolicy),
+		defaultPolicy: NewLevel(config.AccessControl.DefaultPolicy),
 		rules:         NewAccessControlRules(config.AccessControl),
 		config:        config,
 		log:           logging.Logger(),

internal/authorization/authorizer_test.go

@@ -988,12 +988,12 @@ func (s *AuthorizerSuite) TestShouldMatchResourceWithSubjectRules() {
 }
 
 func (s *AuthorizerSuite) TestPolicyToLevel() {
-	s.Assert().Equal(Bypass, StringToLevel(bypass))
+	s.Assert().Equal(Bypass, NewLevel(bypass))
-	s.Assert().Equal(OneFactor, StringToLevel(oneFactor))
+	s.Assert().Equal(OneFactor, NewLevel(oneFactor))
-	s.Assert().Equal(TwoFactor, StringToLevel(twoFactor))
+	s.Assert().Equal(TwoFactor, NewLevel(twoFactor))
-	s.Assert().Equal(Denied, StringToLevel(deny))
+	s.Assert().Equal(Denied, NewLevel(deny))
 
-	s.Assert().Equal(Denied, StringToLevel("whatever"))
+	s.Assert().Equal(Denied, NewLevel("whatever"))
 }
 
 func TestRunSuite(t *testing.T) {

internal/authorization/util.go

@@ -9,8 +9,8 @@ import (
 	"github.com/authelia/authelia/v4/internal/configuration/schema"
 )
 
-// StringToLevel converts a string policy to int authorization level.
+// NewLevel converts a string policy to int authorization level.
-func StringToLevel(policy string) Level {
+func NewLevel(policy string) Level {
 	switch policy {
 	case bypass:
 		return Bypass
@@ -25,9 +25,9 @@ func StringToLevel(policy string) Level {
 	return Denied
 }
 
-// LevelToString converts a int authorization level to string policy.
+// String returns a policy string representation of an authorization.Level.
-func LevelToString(level Level) (policy string) {
+func (l Level) String() string {
-	switch level {
+	switch l {
 	case Bypass:
 		return bypass
 	case OneFactor:
@@ -36,9 +36,9 @@ func LevelToString(level Level) (policy string) {
 		return twoFactor
 	case Denied:
 		return deny
+	default:
+		return deny
 	}
-
-	return deny
 }
 
 func stringSliceToRegexpSlice(strings []string) (regexps []regexp.Regexp, err error) {

internal/authorization/util_test.go

@@ -25,7 +25,7 @@ func TestLevelToString(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run("Expected_"+tc.expected, func(t *testing.T) {
-			assert.Equal(t, tc.expected, LevelToString(tc.have))
+			assert.Equal(t, tc.expected, tc.have.String())
 		})
 	}
 }

internal/commands/acl.go

@@ -171,11 +171,11 @@ func accessControlCheckWriteOutput(object authorization.Object, subject authoriz
 
 	switch {
 	case appliedPos != 0 && (potentialPos == 0 || (potentialPos > appliedPos)):
-		fmt.Printf("\nThe policy '%s' from rule #%d will be applied to this request.\n\n", authorization.LevelToString(applied.Rule.Policy), appliedPos)
+		fmt.Printf("\nThe policy '%s' from rule #%d will be applied to this request.\n\n", applied.Rule.Policy, appliedPos)
 	case potentialPos != 0 && appliedPos != 0:
-		fmt.Printf("\nThe policy '%s' from rule #%d will potentially be applied to this request. If not policy '%s' from rule #%d will be.\n\n", authorization.LevelToString(potential.Rule.Policy), potentialPos, authorization.LevelToString(applied.Rule.Policy), appliedPos)
+		fmt.Printf("\nThe policy '%s' from rule #%d will potentially be applied to this request. If not policy '%s' from rule #%d will be.\n\n", potential.Rule.Policy, potentialPos, applied.Rule.Policy, appliedPos)
 	case potentialPos != 0:
-		fmt.Printf("\nThe policy '%s' from rule #%d will potentially be applied to this request. Otherwise the policy '%s' from the default policy will be.\n\n", authorization.LevelToString(potential.Rule.Policy), potentialPos, defaultPolicy)
+		fmt.Printf("\nThe policy '%s' from rule #%d will potentially be applied to this request. Otherwise the policy '%s' from the default policy will be.\n\n", potential.Rule.Policy, potentialPos, defaultPolicy)
 	default:
 		fmt.Printf("\nThe policy '%s' from the default policy will be applied to this request as no rules matched the request.\n\n", defaultPolicy)
 	}

internal/handlers/handler_oidc_authorization_consent.go

@@ -11,8 +11,6 @@ import (
 	"github.com/google/uuid"
 	"github.com/ory/fosite"
 
-	"github.com/authelia/authelia/v4/internal/authentication"
-	"github.com/authelia/authelia/v4/internal/authorization"
 	"github.com/authelia/authelia/v4/internal/middlewares"
 	"github.com/authelia/authelia/v4/internal/model"
 	"github.com/authelia/authelia/v4/internal/oidc"
@@ -132,11 +130,11 @@ func handleOIDCAuthorizationConsentRedirect(ctx *middlewares.AutheliaCtx, issuer
 
 		location.RawQuery = query.Encode()
 
-		ctx.Logger.Debugf(logFmtDbgConsentAuthenticationSufficiency, requester.GetID(), client.GetID(), client.Consent, authentication.LevelToString(userSession.AuthenticationLevel), "sufficient", authorization.LevelToString(client.Policy))
+		ctx.Logger.Debugf(logFmtDbgConsentAuthenticationSufficiency, requester.GetID(), client.GetID(), client.Consent, userSession.AuthenticationLevel.String(), "sufficient", client.Policy)
 	} else {
 		location = handleOIDCAuthorizationConsentGetRedirectionURL(issuer, consent, requester)
 
-		ctx.Logger.Debugf(logFmtDbgConsentAuthenticationSufficiency, requester.GetID(), client.GetID(), client.Consent, authentication.LevelToString(userSession.AuthenticationLevel), "insufficient", authorization.LevelToString(client.Policy))
+		ctx.Logger.Debugf(logFmtDbgConsentAuthenticationSufficiency, requester.GetID(), client.GetID(), client.Consent, userSession.AuthenticationLevel.String(), "insufficient", client.Policy)
 	}
 
 	ctx.Logger.Debugf(logFmtDbgConsentRedirect, requester.GetID(), client.GetID(), client.Consent, location)

internal/oidc/client.go

@@ -27,7 +27,7 @@ func NewClient(config schema.OpenIDConnectClientConfiguration) (client *Client)
 
 		UserinfoSigningAlgorithm: config.UserinfoSigningAlgorithm,
 
-		Policy: authorization.StringToLevel(config.Policy),
+		Policy: authorization.NewLevel(config.Policy),
 
 		Consent: NewClientConsent(config.ConsentMode, config.ConsentPreConfiguredDuration),
 	}

internal/oidc/store.go

@@ -28,7 +28,7 @@ func NewStore(config *schema.OpenIDConnectConfiguration, provider storage.Provid
 	}
 
 	for _, client := range config.Clients {
-		policy := authorization.StringToLevel(client.Policy)
+		policy := authorization.NewLevel(client.Policy)
 		logger.Debugf("Registering client %s with policy %s (%v)", client.ID, client.Policy, policy)
 
 		store.clients[client.ID] = NewClient(client)