1 files changed, 67 insertions, 0 deletions
diff --git a/library/cpp/tvmauth/client/misc/checker.h b/library/cpp/tvmauth/client/misc/checker.h
new file mode 100644
index 0000000000..e8ed2f5503
--- /dev/null
+++ b/library/cpp/tvmauth/client/misc/checker.h
@@ -0,0 +1,67 @@
+#pragma once
+
+#include "async_updater.h"
+
+#include <library/cpp/tvmauth/client/exception.h>
+
+#include <library/cpp/tvmauth/checked_service_ticket.h>
+#include <library/cpp/tvmauth/checked_user_ticket.h>
+
+namespace NTvmAuth {
+    class TServiceTicketChecker {
+    public:
+        TServiceTicketChecker(TAsyncUpdaterPtr updater)
+            : Updater_(std::move(updater))
+        {
+            Y_ENSURE(Updater_);
+            GetCache();
+        }
+
+        /*!
+         * Checking must be enabled in TClientSettings
+         * Can throw exception if cache is out of date or wrong config
+         * @param ticket
+         */
+        TCheckedServiceTicket Check(TStringBuf ticket) const {
+            return GetCache()->Check(ticket);
+        }
+
+    private:
+        TServiceContextPtr GetCache() const {
+            TServiceContextPtr c = Updater_->GetCachedServiceContext();
+            Y_ENSURE_EX(c, TBrokenTvmClientSettings() << "Need to use TClientSettings::EnableServiceTicketChecking()");
+            return c;
+        }
+
+    private:
+        TAsyncUpdaterPtr Updater_;
+    };
+
+    class TUserTicketChecker {
+    public:
+        TUserTicketChecker(TAsyncUpdaterPtr updater)
+            : Updater_(std::move(updater))
+        {
+            Y_ENSURE(Updater_);
+            GetCache({});
+        }
+
+        /*!
+         * Blackbox enviroment must be cofingured in TClientSettings
+         * Can throw exception if cache is out of date or wrong config
+         */
+        TCheckedUserTicket Check(TStringBuf ticket, TMaybe<EBlackboxEnv> overridenEnv) const {
+            return GetCache(overridenEnv)->Check(ticket);
+        }
+
+    private:
+        TUserContextPtr GetCache(TMaybe<EBlackboxEnv> overridenEnv) const {
+            TUserContextPtr c = Updater_->GetCachedUserContext(overridenEnv);
+            Y_ENSURE_EX(c, TBrokenTvmClientSettings() << "Need to use TClientSettings::EnableUserTicketChecking()");
+            return c;
+        }
+
+    private:
+        TAsyncUpdaterPtr Updater_;
+    };
+}