Log the rule which is the cause of blocking

cache/stringcache/string_caches.go

@@ -50,7 +50,11 @@ func (cache stringMap) contains(searchString string) bool {
 	})
 
 	if idx < searchBucketLen {
-		return cache[searchLen][idx*searchLen:idx*searchLen+searchLen] == strings.ToLower(normalized)
+		blockRule := cache[searchLen][idx*searchLen : idx*searchLen+searchLen]
+		if blockRule == normalized {
+			log.PrefixedLog("stringMap").Debugf("block rule '%s' matched with '%s'", blockRule, searchString)
+			return true
+		}
 	}
 
 	return false

trie/trie.go

@@ -1,5 +1,10 @@
 package trie
 
+import (
+	"github.com/0xERR0R/blocky/log"
+	"strings"
+)
+
 // Trie stores a set of strings and can quickly check
 // if it contains an element, or one of its parents.
 //
@@ -108,8 +113,11 @@ func (n *parent) insert(key string, split SplitFunc) {
 }
 
 func (n *parent) hasParentOf(key string, split SplitFunc) bool {
+	searchString := key
+	rule := ""
 	for {
 		label, rest := split(key)
+		rule = strings.Join([]string{label, rule}, ".")
 
 		child, ok := n.children[label]
 		if !ok {
@@ -132,7 +140,13 @@ func (n *parent) hasParentOf(key string, split SplitFunc) bool {
 
 		case terminal:
 			// Continue down the trie
-			return child.hasParentOf(rest, split)
+			matched := child.hasParentOf(rest, split)
+			if matched {
+				rule = strings.Join([]string{child.String(), rule}, ".")
+				rule = strings.Trim(rule, ".")
+				log.PrefixedLog("Trie").Debugf("wildcard block rule '%s' matched with '%s'", rule, searchString)
+			}
+			return matched
 		}
 	}
 }