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storage: refuse to open newer version wallet files

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This is mostly a manual copy of parts of multiple commits from the master branch.
This commit is contained in:
SomberNight 2018-01-12 16:52:36 +01:00
parent 64d998fae8
commit d0f9e20cf7
2 changed files with 14 additions and 4 deletions
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7
gui/qt/__init__.py
View file

@ -168,7 +168,12 @@ class ElectrumGui:
w.bring_to_top() w.bring_to_top()
break break
else: else:
wallet = self.daemon.load_wallet(path, None) try:
wallet = self.daemon.load_wallet(path, None)
except BaseException as e:
d = QMessageBox(QMessageBox.Warning, _('Error'), 'Cannot load wallet:\n' + str(e))
d.exec_()
return
if not wallet: if not wallet:
storage = WalletStorage(path) storage = WalletStorage(path)
wizard = InstallWizard(self.config, self.app, self.plugins, storage) wizard = InstallWizard(self.config, self.app, self.plugins, storage)

11
lib/storage.py
View file

@ -75,6 +75,9 @@ class WalletStorage(PrintError):
self.raw = f.read() self.raw = f.read()
if not self.is_encrypted(): if not self.is_encrypted():
self.load_data(self.raw) self.load_data(self.raw)
else:
# avoid new wallets getting 'upgraded'
self.put('seed_version', FINAL_SEED_VERSION)
def load_data(self, s): def load_data(self, s):
try: try:
@ -161,8 +164,6 @@ class WalletStorage(PrintError):
@profiler @profiler
def write(self): def write(self):
# this ensures that previous versions of electrum won't open the wallet
self.put('seed_version', FINAL_SEED_VERSION)
with self.lock: with self.lock:
self._write() self._write()
@ -244,12 +245,14 @@ class WalletStorage(PrintError):
return result return result
def requires_upgrade(self): def requires_upgrade(self):
return self.file_exists() and self.get_seed_version() != FINAL_SEED_VERSION return self.file_exists() and self.get_seed_version() < FINAL_SEED_VERSION
def upgrade(self): def upgrade(self):
self.convert_imported() self.convert_imported()
self.convert_wallet_type() self.convert_wallet_type()
self.convert_account() self.convert_account()
self.put('seed_version', FINAL_SEED_VERSION)
self.write() self.write()
def convert_wallet_type(self): def convert_wallet_type(self):
@ -379,6 +382,8 @@ class WalletStorage(PrintError):
seed_version = self.get('seed_version') seed_version = self.get('seed_version')
if not seed_version: if not seed_version:
seed_version = OLD_SEED_VERSION if len(self.get('master_public_key','')) == 128 else NEW_SEED_VERSION seed_version = OLD_SEED_VERSION if len(self.get('master_public_key','')) == 128 else NEW_SEED_VERSION
if seed_version > FINAL_SEED_VERSION:
raise BaseException('This version of Electrum is too old to open this wallet')
if seed_version >=12: if seed_version >=12:
return seed_version return seed_version
if seed_version not in [OLD_SEED_VERSION, NEW_SEED_VERSION]: if seed_version not in [OLD_SEED_VERSION, NEW_SEED_VERSION]: