qml: use backend sighash check and add user confirmation path
qt: use backend sighash check and add user confirmation path
qml: include get_warning_for_risk_of_burning_coins_as_fees test in txdetails
qt: add warning icon to sighash warning
add sighash and fee checks to wallet.sign_transaction, making all warnings fatal unless ignore_warnings is set to True
tests: test sign_transaction on both code paths with ignore_warnings True and False,
raise specific exceptions TransactionPotentiallyDangerousException and TransactionDangerousException
fixes https://github.com/spesmilo/electrum/issues/3315
The cause was that tracebacks look different whether stack items have source text available.
When using the pyinstaller windows binary, there is no source text available.
Example when running from source:
```
>>> a
Traceback (most recent call last):
File "...\electrum\gui\qt\console.py", line 256, in exec_command
result = eval(command, self.namespace, self.namespace)
File "<string>", line 1, in <module>
NameError: name 'a' is not defined
```
Example for pyinstaller windows binary:
```
>>> a
Traceback (most recent call last):
File "electrum\gui\qt\console.py", line 256, in exec_command
File "<string>", line 1, in <module>
NameError: name 'a' is not defined
```
gui/qt/rbf_dialog.py (old) lines 57-64 were implementing logic that should not be part of GUI code.
Case in point, gui/qml/qetxfinalizer.py (old) lines 511-513 duplicated half of that logic but not the other half.
That logic is now moved to wallet.get_bumpfee_strategies_for_tx().
More context: a user on irc got confused when using the qml gui. They were sending "max" and wanted to bump_fee.
The qml gui selected the "preserve_payment" strategy by default, using which there was no solution, and the user
did not notice that the strategy can be altered (via the "method" dropdown). The qt gui had logic to select
"decrease_payment" by default in such a case (which does find a solution to bump) but this logic was not
duplicated in the qml gui.
Instead of duplicating the logic, this commit moves it to shared lib code.
- no semantic changes, only moving code
- the change in qt/util.py is to avoid GC issues
- due to moving code, the group was moving out of scope and getting GC-ed,
as we only keep a reference to the vbox
(idea from 263fb2ba33 )
The following exceptions should be expected:
FileNotFoundError: given wallet path does not exist
StorageReadWriteError: given file is not readable/writable or containing folder is not writable
InvalidPassword: wallet requires a password but no password or an invalid password was given
WalletFileException: any internal wallet data issue. specific subclasses can be caught separately:
- WalletRequiresSplit: wallet needs splitting (split_data passed in Exception)
- WalletRequiresUpgrade: wallet needs upgrade, and no upgrade=True was passed to load_wallet
- WalletUnfinished: wallet file contains an action and needs additional information to finalize. (WalletDB passed in exception)
Removed qml/qewalletdb.py
This patch also fixes load_wallet calls in electrum/scripts and adds a qml workaround for dialogs opening and closing so
fast that the dialog opened==true property change is missed (which we need to manage the dialog/page stack)
- always store 'keystore_type' in cosigner data and use same types as main
- dont share 'hardware_device' in root of dict, but store for each cosigner
- properly return hardware keystore for hardware cosigners
Note: the option to load a backup from SD card when the device already has a seed
has been removed. The device always returns an error when attempting this.
