Moved config and finished JWT module

jwt/revoke.go

@@ -0,0 +1,31 @@
+package jwt
+
+import (
+	"database/sql"
+
+	"github.com/pkg/errors"
+)
+
+// Revoke a token by adding it to the database
+func RevokeToken(conn *sql.DB, t Token) error {
+	jti := t.GetJTI()
+	exp := t.GetEXP()
+	query := `INSERT INTO jwtblacklist (jti, exp) VALUES (?, ?)`
+	_, err := conn.Exec(query, jti, exp)
+	if err != nil {
+		return errors.Wrap(err, "conn.Exec")
+	}
+	return nil
+}
+
+// Check if a token has been revoked
+func CheckRevoked(conn *sql.DB, t Token) (bool, error) {
+	jti := t.GetJTI()
+	query := `SELECT 1 FROM jwtblacklist WHERE jti = ? LIMIT 1`
+	rows, err := conn.Query(query, jti)
+	if err != nil {
+		return false, errors.Wrap(err, "conn.Exec")
+	}
+	revoked := rows.Next()
+	return revoked, nil
+}