From fa60afc4fb957875bab1c8982d9d9e4999a3814c Mon Sep 17 00:00:00 2001
From: MarcoFalke <falke.marco@gmail.com>
Date: Thu, 16 Apr 2020 12:04:56 -0400
Subject: [PATCH] wallet: Add BlockUntilSyncedToCurrentChain to dumpwallet

---
 src/wallet/rpcdump.cpp           | 22 +++++++++++++---------
 src/wallet/test/wallet_tests.cpp | 15 +++++++++------
 2 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
index 6baada3f46..ca9079167d 100644
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -724,9 +724,8 @@ UniValue dumpprivkey(const JSONRPCRequest& request)
 
 UniValue dumpwallet(const JSONRPCRequest& request)
 {
-    std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
-    const CWallet* const pwallet = wallet.get();
-    if (!EnsureWalletIsAvailable(pwallet, request.fHelp)) {
+    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
+    if (!EnsureWalletIsAvailable(pwallet.get(), request.fHelp)) {
         return NullUniValue;
     }
 
@@ -750,12 +749,17 @@ UniValue dumpwallet(const JSONRPCRequest& request)
                 },
             }.Check(request);
 
-    LegacyScriptPubKeyMan& spk_man = EnsureLegacyScriptPubKeyMan(*wallet);
+    CWallet& wallet = *pwallet;
+    LegacyScriptPubKeyMan& spk_man = EnsureLegacyScriptPubKeyMan(wallet);
+
+    // Make sure the results are valid at least up to the most recent block
+    // the user could have gotten from another RPC command prior to now
+    wallet.BlockUntilSyncedToCurrentChain();
 
     auto locked_chain = pwallet->chain().lock();
     LOCK2(pwallet->cs_wallet, spk_man.cs_KeyStore);
 
-    EnsureWalletIsUnlocked(pwallet);
+    EnsureWalletIsUnlocked(&wallet);
 
     fs::path filepath = request.params[0].get_str();
     filepath = fs::absolute(filepath);
@@ -791,9 +795,9 @@ UniValue dumpwallet(const JSONRPCRequest& request)
     // produce output
     file << strprintf("# Wallet dump created by Bitcoin %s\n", CLIENT_BUILD);
     file << strprintf("# * Created on %s\n", FormatISO8601DateTime(GetTime()));
-    file << strprintf("# * Best block at time of backup was %i (%s),\n", pwallet->GetLastBlockHeight(), pwallet->GetLastBlockHash().ToString());
+    file << strprintf("# * Best block at time of backup was %i (%s),\n", wallet.GetLastBlockHeight(), wallet.GetLastBlockHash().ToString());
     int64_t block_time = 0;
-    CHECK_NONFATAL(pwallet->chain().findBlock(pwallet->GetLastBlockHash(), FoundBlock().time(block_time)));
+    CHECK_NONFATAL(wallet.chain().findBlock(wallet.GetLastBlockHash(), FoundBlock().time(block_time)));
     file << strprintf("#   mined on %s\n", FormatISO8601DateTime(block_time));
     file << "\n";
 
@@ -817,8 +821,8 @@ UniValue dumpwallet(const JSONRPCRequest& request)
         CKey key;
         if (spk_man.GetKey(keyid, key)) {
             file << strprintf("%s %s ", EncodeSecret(key), strTime);
-            if (GetWalletAddressesForKey(&spk_man, pwallet, keyid, strAddr, strLabel)) {
-               file << strprintf("label=%s", strLabel);
+            if (GetWalletAddressesForKey(&spk_man, &wallet, keyid, strAddr, strLabel)) {
+                file << strprintf("label=%s", strLabel);
             } else if (keyid == seed_id) {
                 file << "hdseed=1";
             } else if (mapKeyPool.count(keyid)) {
diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
index 32665f41c8..608bc69dd4 100644
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -217,16 +217,19 @@ BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
     // Import key into wallet and call dumpwallet to create backup file.
     {
         std::shared_ptr<CWallet> wallet = std::make_shared<CWallet>(chain.get(), WalletLocation(), WalletDatabase::CreateDummy());
-        auto spk_man = wallet->GetOrCreateLegacyScriptPubKeyMan();
-        LOCK2(wallet->cs_wallet, spk_man->cs_KeyStore);
-        spk_man->mapKeyMetadata[coinbaseKey.GetPubKey().GetID()].nCreateTime = KEY_TIME;
-        spk_man->AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
+        {
+            auto spk_man = wallet->GetOrCreateLegacyScriptPubKeyMan();
+            LOCK2(wallet->cs_wallet, spk_man->cs_KeyStore);
+            spk_man->mapKeyMetadata[coinbaseKey.GetPubKey().GetID()].nCreateTime = KEY_TIME;
+            spk_man->AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
 
+            AddWallet(wallet);
+            wallet->SetLastBlockProcessed(::ChainActive().Height(), ::ChainActive().Tip()->GetBlockHash());
+        }
         JSONRPCRequest request;
         request.params.setArray();
         request.params.push_back(backup_file);
-        AddWallet(wallet);
-        wallet->SetLastBlockProcessed(::ChainActive().Height(), ::ChainActive().Tip()->GetBlockHash());
+
         ::dumpwallet(request);
         RemoveWallet(wallet);
     }