feat: add backend for oidc consent

internal/bootstrap/app_helpers.go

@@ -0,0 +1,55 @@
+package bootstrap
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/tinyauthapp/tinyauth/internal/utils"
+)
+
+// Not really the best place for the helpers to be but it works because bootstrap app provides
+// them with everything they need
+
+func (app *BootstrapApp) getCookieDomain(ctx context.Context, ip string) (string, error) {
+	cookieDomain := app.runtime.CookieDomain
+
+	if app.isTailscaleRequest(ctx, ip) {
+		if app.services.tailscaleService == nil {
+			return "", errors.New("tailscale service is not configured")
+		}
+
+		tsCookieDomain, err := utils.GetCookieDomain(fmt.Sprintf("https://%s", app.services.tailscaleService.GetHostname()))
+
+		if err != nil {
+			return "", fmt.Errorf("failed to get cookie domain for tailscale user: %w", err)
+		}
+
+		cookieDomain = tsCookieDomain
+	}
+
+	if app.config.Auth.SubdomainsEnabled {
+		cookieDomain = "." + cookieDomain
+	}
+
+	return cookieDomain, nil
+}
+
+func (app *BootstrapApp) isTailscaleRequest(ctx context.Context, ip string) bool {
+	if app.services.tailscaleService == nil {
+		return false
+	}
+
+	whois, err := app.services.tailscaleService.Whois(ctx, ip)
+
+	if err != nil {
+		app.log.App.Error().Err(err).Msgf("Error performing Tailscale whois for IP %s: %v", ip, err)
+		return false
+	}
+
+	if whois == nil {
+		return false
+	}
+
+	return true
+}