dns: block blacklisted domains in the database

4 files changed, 62 insertions, 3 deletions

diff --git a/db/models.go b/db/models.go
index a6da6bf..1ea2797 100644
--- a/db/models.go
+++ b/db/models.go
@@ -8,6 +8,10 @@ import (
 	"github.com/jackc/pgx/v5/pgtype"
 )
 
+type Dnsblacklist struct {
+	Name string
+}
+
 type Usage struct {
 	Hardwareaddr int64
 	Starttime    pgtype.Timestamp
diff --git a/db/query.sql b/db/query.sql
index cfea3f1..9ba172f 100644
--- a/db/query.sql
+++ b/db/query.sql
@@ -6,4 +6,16 @@ INSERT INTO Usage (
 );
 
 -- name: GetUsage :one
-SELECT SUM(Ingress) AS Ingress, SUM(Egress) AS Egress FROM Usage;
+SELECT SUM(Ingress) AS Ingress, SUM(Egress) AS Egress
+FROM Usage;
+
+-- name: EnterDnsBlackList :exec
+INSERT INTO DnsBlackList (
+  Name
+) VALUES (
+  $1
+);
+
+-- name: GetDnsBlackList :many
+SELECT *
+FROM DnsBlackList;
diff --git a/db/query.sql.go b/db/query.sql.go
index d6304a7..80c6469 100644
--- a/db/query.sql.go
+++ b/db/query.sql.go
@@ -11,6 +11,19 @@ import (
 	"github.com/jackc/pgx/v5/pgtype"
 )
 
+const enterDnsBlackList = `-- name: EnterDnsBlackList :exec
+INSERT INTO DnsBlackList (
+  Name
+) VALUES (
+  $1
+)
+`
+
+func (q *Queries) EnterDnsBlackList(ctx context.Context, name string) error {
+	_, err := q.db.Exec(ctx, enterDnsBlackList, name)
+	return err
+}
+
 const enterUsage = `-- name: EnterUsage :exec
 INSERT INTO Usage (
   HardwareAddr, StartTime, StopTime, Egress, Ingress
@@ -38,8 +51,34 @@ func (q *Queries) EnterUsage(ctx context.Context, arg EnterUsageParams) error {
 	return err
 }
 
+const getDnsBlackList = `-- name: GetDnsBlackList :many
+SELECT name
+FROM DnsBlackList
+`
+
+func (q *Queries) GetDnsBlackList(ctx context.Context) ([]string, error) {
+	rows, err := q.db.Query(ctx, getDnsBlackList)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []string
+	for rows.Next() {
+		var name string
+		if err := rows.Scan(&name); err != nil {
+			return nil, err
+		}
+		items = append(items, name)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const getUsage = `-- name: GetUsage :one
-SELECT SUM(Ingress) AS Ingress, SUM(Egress) AS Egress FROM Usage
+SELECT SUM(Ingress) AS Ingress, SUM(Egress) AS Egress
+FROM Usage
 `
 
 type GetUsageRow struct {
diff --git a/db/schema.sql b/db/schema.sql
index aece061..c8c35a1 100644
--- a/db/schema.sql
+++ b/db/schema.sql
@@ -1,7 +1,11 @@
-CREATE TABLE Usage (
+CREATE TABLE IF NOT EXISTS Usage (
   HardwareAddr BIGINT NOT NULL,
   StartTime TIMESTAMP NOT NULL,
   StopTime TIMESTAMP NOT NULL,
   Egress BIGINT NOT NULL,
   Ingress BIGINT NOT NULL
 );
+
+CREATE TABLE IF NOT EXISTS DnsBlackList (
+  Name TEXT NOT NULL UNIQUE
+);