User based rate limiting (#8152)

model/config.go

@@ -802,7 +802,8 @@ type RateLimitSettings struct {
 	PerSec           *int
 	MaxBurst         *int
 	MemoryStoreSize  *int
-	VaryByRemoteAddr bool
+	VaryByRemoteAddr *bool
+	VaryByUser       *bool
 	VaryByHeader     string
 }
 
@@ -822,6 +823,14 @@ func (s *RateLimitSettings) SetDefaults() {
 	if s.MemoryStoreSize == nil {
 		s.MemoryStoreSize = NewInt(10000)
 	}
+
+	if s.VaryByRemoteAddr == nil {
+		s.VaryByRemoteAddr = NewBool(true)
+	}
+
+	if s.VaryByUser == nil {
+		s.VaryByUser = NewBool(false)
+	}
 }
 
 type PrivacySettings struct {