Final part on compatibility layer: LOGBROKER-7215

ref:777c67aadbf705d19034a09a792b2df61ba53697

1 files changed, 50 insertions, 0 deletions

diff --git a/library/cpp/tvmauth/client/misc/disk_cache.h b/library/cpp/tvmauth/client/misc/disk_cache.h
new file mode 100644
index 0000000000..9e77556f86
--- /dev/null
+++ b/library/cpp/tvmauth/client/misc/disk_cache.h
@@ -0,0 +1,50 @@
+#pragma once
+
+#include <util/datetime/base.h>
+#include <util/generic/string.h>
+
+namespace NTvmAuth {
+    class ILogger;
+
+    class TDiskReader {
+    public:
+        TDiskReader(const TString& filename, ILogger* logger = nullptr);
+
+        bool Read();
+
+        const TString& Data() const {
+            return Data_;
+        }
+
+        TInstant Time() const {
+            return Time_;
+        }
+
+    public: // for tests
+        bool ParseData(TStringBuf buf);
+
+        static TString GetHash(TStringBuf data);
+        static time_t GetTimestamp(TStringBuf data);
+
+    private:
+        TString Filename_;
+        ILogger* Logger_;
+        TInstant Time_;
+        TString Data_;
+    };
+
+    class TDiskWriter {
+    public:
+        TDiskWriter(const TString& filename, ILogger* logger = nullptr);
+
+        bool Write(TStringBuf data, TInstant now = TInstant::Now());
+
+    public: // for tests
+        static TString PrepareData(TInstant time, TStringBuf data);
+        static TString WriteTimestamp(time_t time);
+
+    private:
+        TString Filename_;
+        ILogger* Logger_;
+    };
+}