all: rewrite package dependency

internal/filtering/rewrite.go

@@ -0,0 +1,42 @@
+package filtering
+
+import (
+	"github.com/AdguardTeam/urlfilter"
+	"github.com/AdguardTeam/urlfilter/rules"
+)
+
+// RewriteStorage is a storage for rewrite rules.
+type RewriteStorage interface {
+	// MatchRequest returns matching dnsrewrites for the specified request.
+	MatchRequest(dReq *urlfilter.DNSRequest) (rws []*rules.DNSRewrite)
+
+	// Add adds item to the storage.
+	Add(item *RewriteItem) (err error)
+
+	// Remove deletes item from the storage.
+	Remove(item *RewriteItem) (err error)
+
+	// List returns all items from the storage.
+	List() (items []*RewriteItem)
+}
+
+// RewriteItem is a single DNS rewrite record.
+type RewriteItem struct {
+	// Domain is the domain pattern for which this rewrite should work.
+	Domain string `yaml:"domain" json:"domain"`
+
+	// Answer is the IP address, canonical name, or one of the special
+	// values: "A" or "AAAA".
+	Answer string `yaml:"answer" json:"answer"`
+}
+
+// Equal returns true if rw is Equal to other.
+func (rw *RewriteItem) Equal(other *RewriteItem) (ok bool) {
+	if rw == nil {
+		return other == nil
+	} else if other == nil {
+		return false
+	}
+
+	return *rw == *other
+}