Remove WalletLocation class

This removes a source of complexity and indirection that makes it harder to
understand path checking code. Path checks will be simplified in upcoming
commits.

There is no change in behavior in this commit other than a slightly more
descriptive error message in `loadwallet` if the default "" wallet can't be
found. (The error message is improved more in upcoming commit "wallet: Remove
path checking code from loadwallet RPC".)

1 files changed, 21 insertions, 21 deletions

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index afe676078c..43dbd48262 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -200,15 +200,15 @@ void UnloadWallet(std::shared_ptr<CWallet>&& wallet)
 }
 
 namespace {
-std::shared_ptr<CWallet> LoadWalletInternal(interfaces::Chain& chain, const WalletLocation& location, Optional<bool> load_on_start, bilingual_str& error, std::vector<bilingual_str>& warnings)
+std::shared_ptr<CWallet> LoadWalletInternal(interfaces::Chain& chain, const std::string& name, Optional<bool> load_on_start, bilingual_str& error, std::vector<bilingual_str>& warnings)
 {
     try {
-        if (!CWallet::Verify(chain, location, error, warnings)) {
+        if (!CWallet::Verify(chain, name, error, warnings)) {
             error = Untranslated("Wallet file verification failed.") + Untranslated(" ") + error;
             return nullptr;
         }
 
-        std::shared_ptr<CWallet> wallet = CWallet::CreateWalletFromFile(chain, location, error, warnings);
+        std::shared_ptr<CWallet> wallet = CWallet::CreateWalletFromFile(chain, name, error, warnings);
         if (!wallet) {
             error = Untranslated("Wallet loading failed.") + Untranslated(" ") + error;
             return nullptr;
@@ -217,7 +217,7 @@ std::shared_ptr<CWallet> LoadWalletInternal(interfaces::Chain& chain, const Wall
         wallet->postInitProcess();
 
         // Write the wallet setting
-        UpdateWalletSetting(chain, location.GetName(), load_on_start, warnings);
+        UpdateWalletSetting(chain, name, load_on_start, warnings);
 
         return wallet;
     } catch (const std::runtime_error& e) {
@@ -227,14 +227,14 @@ std::shared_ptr<CWallet> LoadWalletInternal(interfaces::Chain& chain, const Wall
 }
 } // namespace
 
-std::shared_ptr<CWallet> LoadWallet(interfaces::Chain& chain, const WalletLocation& location, Optional<bool> load_on_start, bilingual_str& error, std::vector<bilingual_str>& warnings)
+std::shared_ptr<CWallet> LoadWallet(interfaces::Chain& chain, const std::string& name, Optional<bool> load_on_start, bilingual_str& error, std::vector<bilingual_str>& warnings)
 {
-    auto result = WITH_LOCK(g_loading_wallet_mutex, return g_loading_wallet_set.insert(location.GetName()));
+    auto result = WITH_LOCK(g_loading_wallet_mutex, return g_loading_wallet_set.insert(name));
     if (!result.second) {
         error = Untranslated("Wallet already being loading.");
         return nullptr;
     }
-    auto wallet = LoadWalletInternal(chain, location, load_on_start, error, warnings);
+    auto wallet = LoadWalletInternal(chain, name, load_on_start, error, warnings);
     WITH_LOCK(g_loading_wallet_mutex, g_loading_wallet_set.erase(result.first));
     return wallet;
 }
@@ -250,14 +250,13 @@ WalletCreationStatus CreateWallet(interfaces::Chain& chain, const SecureString&
     }
 
     // Check the wallet file location
-    WalletLocation location(name);
-    if (location.Exists()) {
-        error = strprintf(Untranslated("Wallet %s already exists."), location.GetName());
+    if (fs::symlink_status(fs::absolute(name.empty() ? "wallet.dat" : name, GetWalletDir())).type() != fs::file_not_found) {
+        error = strprintf(Untranslated("Wallet %s already exists."), name);
         return WalletCreationStatus::CREATION_FAILED;
     }
 
     // Wallet::Verify will check if we're trying to create a wallet with a duplicate name.
-    if (!CWallet::Verify(chain, location, error, warnings)) {
+    if (!CWallet::Verify(chain, name, error, warnings)) {
         error = Untranslated("Wallet file verification failed.") + Untranslated(" ") + error;
         return WalletCreationStatus::CREATION_FAILED;
     }
@@ -269,7 +268,7 @@ WalletCreationStatus CreateWallet(interfaces::Chain& chain, const SecureString&
     }
 
     // Make the wallet
-    std::shared_ptr<CWallet> wallet = CWallet::CreateWalletFromFile(chain, location, error, warnings, wallet_creation_flags);
+    std::shared_ptr<CWallet> wallet = CWallet::CreateWalletFromFile(chain, name, error, warnings, wallet_creation_flags);
     if (!wallet) {
         error = Untranslated("Wallet creation failed.") + Untranslated(" ") + error;
         return WalletCreationStatus::CREATION_FAILED;
@@ -3770,7 +3769,7 @@ std::vector<std::string> CWallet::GetDestValues(const std::string& prefix) const
     return values;
 }
 
-bool CWallet::Verify(interfaces::Chain& chain, const WalletLocation& location, bilingual_str& error_string, std::vector<bilingual_str>& warnings)
+bool CWallet::Verify(interfaces::Chain& chain, const std::string& name, bilingual_str& error_string, std::vector<bilingual_str>& warnings)
 {
     // Do some checking on wallet path. It should be either a:
     //
@@ -3779,22 +3778,22 @@ bool CWallet::Verify(interfaces::Chain& chain, const WalletLocation& location, b
     // 3. Path to a symlink to a directory.
     // 4. For backwards compatibility, the name of a data file in -walletdir.
     LOCK(cs_wallets);
-    const fs::path& wallet_path = location.GetPath();
+    const fs::path& wallet_path = fs::absolute(name, GetWalletDir());
     fs::file_type path_type = fs::symlink_status(wallet_path).type();
     if (!(path_type == fs::file_not_found || path_type == fs::directory_file ||
           (path_type == fs::symlink_file && fs::is_directory(wallet_path)) ||
-          (path_type == fs::regular_file && fs::path(location.GetName()).filename() == location.GetName()))) {
+          (path_type == fs::regular_file && fs::path(name).filename() == name))) {
         error_string = Untranslated(strprintf(
               "Invalid -wallet path '%s'. -wallet path should point to a directory where wallet.dat and "
               "database/log.?????????? files can be stored, a location where such a directory could be created, "
               "or (for backwards compatibility) the name of an existing data file in -walletdir (%s)",
-              location.GetName(), GetWalletDir()));
+              name, GetWalletDir()));
         return false;
     }
 
     // Make sure that the wallet path doesn't clash with an existing wallet path
     if (IsWalletLoaded(wallet_path)) {
-        error_string = Untranslated(strprintf("Error loading wallet %s. Duplicate -wallet filename specified.", location.GetName()));
+        error_string = Untranslated(strprintf("Error loading wallet %s. Duplicate -wallet filename specified.", name));
         return false;
     }
 
@@ -3804,14 +3803,15 @@ bool CWallet::Verify(interfaces::Chain& chain, const WalletLocation& location, b
     try {
         return database->Verify(error_string);
     } catch (const fs::filesystem_error& e) {
-        error_string = Untranslated(strprintf("Error loading wallet %s. %s", location.GetName(), fsbridge::get_filesystem_error_message(e)));
+        error_string = Untranslated(strprintf("Error loading wallet %s. %s", name, fsbridge::get_filesystem_error_message(e)));
         return false;
     }
 }
 
-std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(interfaces::Chain& chain, const WalletLocation& location, bilingual_str& error, std::vector<bilingual_str>& warnings, uint64_t wallet_creation_flags)
+std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(interfaces::Chain& chain, const std::string& name, bilingual_str& error, std::vector<bilingual_str>& warnings, uint64_t wallet_creation_flags)
 {
-    const std::string walletFile = WalletDataFilePath(location.GetPath()).string();
+    fs::path path = fs::absolute(name, GetWalletDir());
+    const std::string walletFile = WalletDataFilePath(path).string();
 
     chain.initMessage(_("Loading wallet...").translated);
 
@@ -3819,7 +3819,7 @@ std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(interfaces::Chain& chain,
     bool fFirstRun = true;
     // TODO: Can't use std::make_shared because we need a custom deleter but
     // should be possible to use std::allocate_shared.
-    std::shared_ptr<CWallet> walletInstance(new CWallet(&chain, location, CreateWalletDatabase(location.GetPath())), ReleaseWallet);
+    std::shared_ptr<CWallet> walletInstance(new CWallet(&chain, name, CreateWalletDatabase(path)), ReleaseWallet);
     DBErrors nLoadWalletRet = walletInstance->LoadWallet(fFirstRun);
     if (nLoadWalletRet != DBErrors::LOAD_OK) {
         if (nLoadWalletRet == DBErrors::CORRUPT) {