Assume Alice and Bob have a channel, and Alice is on an old state,
but neither of them knows the latter yet.
Timing scenarios:
1. Alice sends reest first, and Bob receives it before sending reest himself
- old code: Bob realises Alice is behind, Bob will force-close,
Bob won't send reest to Alice, so Alice does not learn she is behind
- new code: Bob realises Alice is behind, Bob will force-close,
Bob will still send reest to Alice, so Alice learns she is behind.
2. Bob sends reest first, and Alice receives it before sending reest herself
- old code: Alice learns she is behind. Alice won't send reest to Bob,
so Bob does not learn he is ahead, so Bob won't force-close.
- new code: Alice learns she is behind. Alice will still send reest to Bob
though with ctn=0 instead of actual. Bob learns he is ahead, so
Bob will force close.
3. Alice and Bob both send reest, and then they both receive what the other sent
- no change: Alice and Bob both learn Alice is behind. Bob will force-close.
lnworker.suggest_splits for non-trampoline case tries to split amts over 5000 sat
but mpp_split.suggest_splits does not return splits where any part is smaller than 10000 sat.
So in practice, without trampoline, invoices between 5k and ~20k sats could not be paid.
This suggests that the logic should not be scattered in multiple places but merged into mpp_split.py...
This commit just does a quick fix though, to try again without splitting if there was no solution.
"18 pixels" is too large when using qdarkstyle on "low" DPI screens, on Windows
(if there is also a high DPI screen connected as another monitor... eh)
- without this, in send tab paytoedit, try_payment_identifier will get called and it will error
df1b9a223c/electrum/gui/qt/paytoedit.py (L153)
- also, in all text fields this used to result in clearing the current text (but now it is kept instead)
```
25.30 | E | gui.qt.exception_window.Exception_Hook | exception caught by crash reporter
Traceback (most recent call last):
File "/home/user/wspace/electrum/electrum/gui/qt/__init__.py", line 439, in _start_wizard_to_select_or_create_wallet
wallet = self.daemon.load_wallet(wallet_file, d['password'], upgrade=True)
File "/home/user/wspace/electrum/electrum/daemon.py", line 481, in func_wrapper
return func(self, *args, **kwargs)
File "/home/user/wspace/electrum/electrum/daemon.py", line 491, in load_wallet
wallet = self._load_wallet(path, password, upgrade=upgrade, config=self.config)
File "/home/user/wspace/electrum/electrum/util.py", line 481, in do_profile
o = func(*args, **kw_args)
File "/home/user/wspace/electrum/electrum/daemon.py", line 516, in _load_wallet
raise WalletUnfinished(db)
electrum.wallet_db.WalletUnfinished: <electrum.wallet_db.WalletDB object at 0x7f11db3a7ca0>
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/user/wspace/electrum/electrum/gui/qt/wizard/wizard.py", line 203, in on_next_button_clicked
if self.is_finalized(wd):
File "/home/user/wspace/electrum/electrum/gui/qt/wizard/wallet.py", line 178, in is_finalized
if not wizard_data['wallet_exists'] or wizard_data['wallet_is_open']:
KeyError: 'wallet_exists'
```
With wallet_type=="standard", if the user enters a 2fa electrum seed, the "next" btn is disabled.
This is a regression in the new wizard, the old one used to "redirect" seamlessly.
This commit does not fix this, but at least shows a user-friendly warning message.
Note: would be nice if the wizard redirected automatically, in both directions (2fa->std, std->2fa).
The old wizard implemented std->2fa (probably the more common case hit by users), and had this
warning message shown for the 2fa->std case. Now I am repurposing the warning also for std->2fa.
I am only making this change as it makes it simpler to do manual testing of CPFP-ing *local* txs.
That is, by changing a few easy-to-find lines of code, I can make the GUI allow CPFP-ing a local tx, but
without this change it errors out with "unknown fee for parent transaction".
If one has an incoming local tx saved in the wallet, adb.get_tx_fee(txid) returns None
(if the tx gets into the mempool, it will use the server-reported value instead).
In contrast, wallet.get_tx_info(tx).fee calls both wallet.get_wallet_delta(tx) and adb.get_tx_fee(txid),
making it more expensive but more complete.
On Android, we disallow screenshots on screens where the seed is visible.
(The seed is extremely sensitive data that should not be stored digitally without
significant precautions but it's also cumbersome to write down or memorise, so
some people instinctively just try to take a screenshot of it when creating a wallet.)
We do this by using the built-in OS mechanism of setting FLAG_SECURE on the window.
However, on some devices with custom ROMs (one report from LineageOS, one from /e/OS),
unsetting FLAG_SECURE crashes the application for some reason.
As a workaround, this commit adds a config setting into the Preferences,
to disable this mechanism and just always allow screenshots.
(note that you can get into the qml Preferences before creating/opening any wallet)
ref https://github.com/spesmilo/electrum/issues/8522
SomberNight
Sander van Grieken
ThomasV
MrNaif2018