```
./tests/test_mnemonic.py:249:9: B017 `assertRaises(Exception)` and `pytest.raises(Exception)` should be considered evil. They can lead to your test passing even if the code being tested is never executed due to a typo. Assert for a more specific exception (builtin or custom), or use `assertRaisesRegex` (if using `assertRaises`), or add the `match` keyword argument (if using `pytest.raises`), or use the context manager form with a target.
with self.assertRaises(Exception):
^
1 B017 `assertRaises(Exception)` and `pytest.raises(Exception)` should be considered evil. They can lead to your test passing even if the code being tested is never executed due to a typo. Assert for a more specific exception (builtin or custom), or use `assertRaisesRegex` (if using `assertRaises`), or add the `match` keyword argument (if using `pytest.raises`), or use the context manager form with a target.
```
Some functions have an argument named "seed_type" in which it was annoying to call the seed_type() fn.
(especially for functions inside the same module)
- the unlock command was replaced by an option to load_wallet,
because some applications (the swapserver plugin) need to be
executed with an unlocked password. Now the swapserver plugin
waits until the wallet is unlocked.
- wallet.unlock now checks password unconditionally, see #8799
Previously when encountering a CA-signed cert that failed verification with "Hostname mismatch",
we would
1. erroneously mark it as self-signed
2. save its cert to pin it
3. when connecting to it later, and being served a CA-signed cert, we would reject the connection
- I think this is because we use the saved cert (the peer cert, just the last cert in the chain) as if it was a root CA,
and then during the connection we try to verify against that root. This fails as we are served a different root then.
Error logged in step(3):
```
3.85 | W | i/interface.[wirg2tsto7rme7n26lkd3ivbvxmjyy2pktlozwjuep22jcsfsghfqbqd.onion:50002] | Cannot connect to main server due to SSL error (maybe cert changed compared to "/home/user/.electrum/testnet/certs/wirg2tsto7rme7n26lkd3ivbvxmjyy2pktlozwjuep22jcsfsghfqbqd.onion"). Exc: ConnectError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1007)'))
```
This commit fixes step(1), we won't mark the cert as self-signed, instead the error is propagated out and the connection closed.
```
35.05 | I | i/interface.[wirg2tsto7rme7n26lkd3ivbvxmjyy2pktlozwjuep22jcsfsghfqbqd.onion:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(SSLCertVerificationError(1, "[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'wirg2tsto7rme7n26lkd3ivbvxmjyy2pktlozwjuep22jcsfsghfqbqd.onion'. (_ssl.c:1007)")))
```
Compare:
- SSLCertVerificationError(1, "[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'wirg2tsto7rme7n26lkd3ivbvxmjyy2pktlozwjuep22jcsfsghfqbqd.onion'. (_ssl.c:1007)")
- verify_code=62
- SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1007)')
- verify_code=18
Note: the verify_code constants look stable, though they might be openssl-specific. I guess that's ok(?)
140540189c/include/openssl/x509_vfy.h.in (L224)
instead, schedule a queued finished signal to unregister the listener after the handler has finished.
See PythonActivity.java in P4A for why this probably causes the most often occurring crash we see on the Play Store:
```
Exception java.lang.RuntimeException:
at android.app.ActivityThread.deliverResults (ActivityThread.java:5164)
at android.app.ActivityThread.handleSendResult (ActivityThread.java:5205)
at android.app.servertransaction.ActivityResultItem.execute (ActivityResultItem.java:51)
at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2136)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loop (Looper.java:236)
at android.app.ActivityThread.main (ActivityThread.java:8061)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:656)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:967)
Caused by java.util.ConcurrentModificationException:
at java.util.ArrayList$Itr.next (ArrayList.java:860)
at org.kivy.android.PythonActivity.onActivityResult (PythonActivity.java:218)
at android.app.Activity.dispatchActivityResult (Activity.java:8501)
at android.app.ActivityThread.deliverResults (ActivityThread.java:5157)
```
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