Merge branch 'main' into datatype_prediction

internal/corazawaf/transaction.go

@@ -588,9 +588,9 @@
 	}
 
 	// in the most common scenario filteredMatches length will be
-	// the same as matches length, so we avoid allocating per result
-	filteredMatches := make([]experimentalTypes.MatchData, 0, len(matches))
-
+	// the same as matches length, so we avoid allocating per result.
+	// We reuse the matches slice to store filtered results avoiding extra allocation.
+	filteredCount := 0
 	for _, c := range matches {
 		isException := false
 		lkey := strings.ToLower(c.Key())
@@ -601,13 +601,15 @@
 			}
 		}
 		if !isException {
-			filteredMatches = append(filteredMatches, c.(experimentalTypes.MatchData))
+			matches[filteredCount] = c
+			filteredCount++
 		}
 	}
+	matches = matches[:filteredCount]
 
 	if rv.Count {
 		count := len(filteredMatches)
 		filteredMatches = []experimentalTypes.MatchData{
 			&corazarules.MatchData{
 				Variable_: rv.Variable,
 				Key_:      rv.KeyStr,
@@ -615,7 +617,7 @@
 			},
 		}
 	}
 	return filteredMatches
 }
 
 // RemoveRuleTargetByID Removes the VARIABLE:KEY from the rule ID