WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

internal/utils/mysql_ssrf.go

@@ -0,0 +1,27 @@
+package utils
+
+import (
+	"context"
+	"net"
+	"sync"
+
+	"github.com/go-sql-driver/mysql"
+)
+
+// MySQLSSRFNetwork is the mysql driver network name registered by
+// RegisterMySQLSSRFDialer. DSNs must set cfg.Net to this value so every
+// database/sql open uses SSRFSafeDialContext at the final TCP sink.
+const MySQLSSRFNetwork = "tcp-weknora-ssrf"
+
+var mysqlSSRFDialerOnce sync.Once
+
+// RegisterMySQLSSRFDialer installs a go-sql-driver/mysql dialer that routes
+// connections through SSRFSafeDialContext. Safe to call from multiple packages;
+// registration happens at most once per process.
+func RegisterMySQLSSRFDialer() {
+	mysqlSSRFDialerOnce.Do(func() {
+		mysql.RegisterDialContext(MySQLSSRFNetwork, func(ctx context.Context, addr string) (net.Conn, error) {
+			return SSRFSafeDialContext(ctx, "tcp", addr)
+		})
+	})
+}