From bc6344b350e24de6137a631aab5f37c3362ddbde Mon Sep 17 00:00:00 2001
From: Jack Grigg <jack@z.cash>
Date: Wed, 1 Aug 2018 23:22:32 +0100
Subject: [PATCH] Add CWallet::AddCryptedSaplingSpendingKey() hook

To be filled in when we implement Sapling persistence to disk.
---
 src/wallet/wallet.cpp | 13 +++++++++++++
 src/wallet/wallet.h   |  4 +++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 7905c2368..373bb9251 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -264,6 +264,19 @@ bool CWallet::AddCryptedSpendingKey(const libzcash::SproutPaymentAddress &addres
     return false;
 }
 
+bool CWallet::AddCryptedSaplingSpendingKey(const libzcash::SaplingFullViewingKey &fvk,
+                                           const std::vector<unsigned char> &vchCryptedSecret)
+{
+    if (!CCryptoKeyStore::AddCryptedSaplingSpendingKey(fvk, vchCryptedSecret))
+        return false;
+    if (!fFileBacked)
+        return true;
+    {
+        // TODO: Sapling - Write to disk
+    }
+    return false;
+}
+
 bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta)
 {
     AssertLockHeld(cs_wallet); // mapKeyMetadata
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index d395d0dbb..7cff16b13 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -999,7 +999,7 @@ public:
     bool RemoveViewingKey(const libzcash::SproutViewingKey &vk);
     //! Adds a viewing key to the store, without saving it to disk (used by LoadWallet)
     bool LoadViewingKey(const libzcash::SproutViewingKey &dest);
-    
+
     /**
       * Sapling ZKeys
       */
@@ -1007,6 +1007,8 @@ public:
     libzcash::SaplingPaymentAddress GenerateNewSaplingZKey();
     //! Adds Sapling spending key to the store, and saves it to disk
     bool AddSaplingZKey(const libzcash::SaplingSpendingKey &key);
+    bool AddCryptedSaplingSpendingKey(const libzcash::SaplingFullViewingKey &fvk,
+                                      const std::vector<unsigned char> &vchCryptedSecret);
 
     /** 
      * Increment the next transaction order id