feat(server/auth): HTTP_CONTROL_SERVER_AUTH_DEFAULT_ROLE option (JSON encoded)

- For example: `{"auth":"basic","username":"me","password":"pass"}`
- For example`{"auth":"apiKey","apikey":"xyz"}`
- For example`{"auth":"none"}` (I don't recommend)

internal/server/server.go

@@ -6,33 +6,25 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/qdm12/gluetun/internal/configuration/settings"
 	"github.com/qdm12/gluetun/internal/httpserver"
 	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/gluetun/internal/server/middlewares/auth"
 )
 
-func New(ctx context.Context, address string, logEnabled bool, logger Logger,
-	authConfigPath string, buildInfo models.BuildInformation, openvpnLooper VPNLooper,
+func New(ctx context.Context, settings settings.ControlServer, logger Logger,
+	buildInfo models.BuildInformation, openvpnLooper VPNLooper,
 	pfGetter PortForwardedGetter, dnsLooper DNSLoop,
 	updaterLooper UpdaterLooper, publicIPLooper PublicIPLoop, storage Storage,
 	ipv6Supported bool) (
 	server *httpserver.Server, err error,
 ) {
-	authSettings, err := auth.Read(authConfigPath)
-	switch {
-	case errors.Is(err, os.ErrNotExist): // no auth file present
-	case err != nil:
-		return nil, fmt.Errorf("reading auth settings: %w", err)
-	default:
-		logger.Infof("read %d roles from authentication file", len(authSettings.Roles))
-	}
-	authSettings.SetDefaults()
-	err = authSettings.Validate()
+	authSettings, err := setupAuthMiddleware(settings.AuthFilePath, settings.AuthDefaultRole, logger)
 	if err != nil {
-		return nil, fmt.Errorf("validating auth settings: %w", err)
+		return nil, fmt.Errorf("building authentication middleware settings: %w", err)
 	}
 
-	handler, err := newHandler(ctx, logger, logEnabled, authSettings, buildInfo,
+	handler, err := newHandler(ctx, logger, *settings.Log, authSettings, buildInfo,
 		openvpnLooper, pfGetter, dnsLooper, updaterLooper, publicIPLooper,
 		storage, ipv6Supported)
 	if err != nil {
@@ -40,7 +32,7 @@ func New(ctx context.Context, address string, logEnabled bool, logger Logger,
 	}
 
 	httpServerSettings := httpserver.Settings{
-		Address: address,
+		Address: *settings.Address,
 		Handler: handler,
 		Logger:  logger,
 	}
@@ -52,3 +44,26 @@ func New(ctx context.Context, address string, logEnabled bool, logger Logger,
 
 	return server, nil
 }
+
+func setupAuthMiddleware(authPath, jsonDefaultRole string, logger Logger) (
+	authSettings auth.Settings, err error,
+) {
+	authSettings, err = auth.Read(authPath)
+	switch {
+	case errors.Is(err, os.ErrNotExist): // no auth file present
+	case err != nil:
+		return auth.Settings{}, fmt.Errorf("reading auth settings: %w", err)
+	default:
+		logger.Infof("read %d roles from authentication file", len(authSettings.Roles))
+	}
+	err = authSettings.SetDefaultRole(jsonDefaultRole)
+	if err != nil {
+		return auth.Settings{}, fmt.Errorf("setting default role: %w", err)
+	}
+	authSettings.SetDefaults()
+	err = authSettings.Validate()
+	if err != nil {
+		return auth.Settings{}, fmt.Errorf("validating auth settings: %w", err)
+	}
+	return authSettings, nil
+}