[feature] Debug admin endpoint to clear caches (#2940)

* [feature] Debug admin endpoint to clear caches

* go fmt

1 files changed, 24 insertions, 0 deletions

diff --git a/internal/api/client/admin/debug_on.go b/internal/api/client/admin/debug_on.go
index c6dfa11ff..ea42206f8 100644
--- a/internal/api/client/admin/debug_on.go
+++ b/internal/api/client/admin/debug_on.go
@@ -56,3 +56,27 @@ func (m *Module) DebugAPUrlHandler(c *gin.Context) {
 
 	c.JSON(http.StatusOK, resp)
 }
+
+func (m *Module) DebugClearCachesHandler(c *gin.Context) {
+	authed, err := oauth.Authed(c, true, true, true, true)
+	if err != nil {
+		apiutil.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
+
+	if !*authed.User.Admin {
+		err := fmt.Errorf("user %s not an admin", authed.User.ID)
+		apiutil.ErrorHandler(c, gtserror.NewErrorForbidden(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
+
+	if _, err := apiutil.NegotiateAccept(c, apiutil.JSONAcceptHeaders...); err != nil {
+		apiutil.ErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
+
+	// Sweep all caches down to 0 (empty).
+	m.state.Caches.Sweep(0)
+
+	c.JSON(http.StatusOK, gin.H{"status": "OK"})
+}