It's not necessary and in other places like add_contact_to_chat_ex() sync messages are also sent
only if there are no system messages sent like MemberAddedToGroup.
We already synchronise status/footer when we see a self-sent message with a Chat-Version
header. Would be nice to do the same for display name.
But let's do it the same way as for `Config::{MdnsEnabled,ShowEmails}`. Otherwise, if we sync the
display name using the "From" header, smth like `Param::StatusTimestamp` is needed then to reject
outdated display names. Also this timestamp needs to be updated when `Config::Displayname` is set
locally. Also this wouldn't work if system time isn't synchronised on devices. Also using multiple
approaches to sync different config values would lead to more code and bugs while having almost no
value -- using "From" only saves some bytes and allows to sync some things w/o the synchronisation
itself to be enabled. But the latter also can be a downside -- if it's usual synchonisation, you can
(potentially) disable it and share the same email account across people in some organisation
allowing them to have different display names. With using "From" for synchronisation such a
capability definitely requires a new config option.
Motivation: Syncing these options will improve UX in very most cases and should be done. Other
candidates are less clear or are advanced options, we can reconsider that at some point later.
Approach:
- Sync options one-by-one when the corresponding option is set (even if to the same value).
- Don't sync when an option is reset to a default as defaults may differ across client versions.
- Check on both sides that the option should be synced so that if there are different client
versions, the synchronisation of the option is either done or not done in both directions.
Moreover, receivers of a config value need to check if a key can be synced because some settings
(e.g. Avatar path) could otherwise lead to exfiltration of files from a receiver's device if we
assume an attacker to have control of a device in a multi-device setting or if multiple users are
sharing an account.
- Don't sync `SyncMsgs` itself.
If a message is encrypted, but unsigned:
- Don't set `MimeMessage::from_is_signed`.
- Remove "secure-join-fingerprint" and "chat-verified" headers from `MimeMessage`.
- Minor: Preserve "Subject" from the unencrypted top level if there's no "Subject" in the encrypted
part, this message is displayed w/o a padlock anyway.
Apparently it didn't lead to any vulnerabilities because there are checks for
`MimeMessage::signatures.is_empty()` in all necessary places, but still the code looked dangerous,
especially because `from_is_singed` var name didn't correspond to its actual value (it was rather
`from_is_encrypted_maybe_signed`).
Currently this leads to
DEBUG root:rpc.py:136 account_id=1 got an event {'kind': 'Warning', 'msg': 'src/scheduler.rs:711: send_smtp_messages failed: failed to send message: failed to update retries count: database is locked: Error code 5: The database file is locked'}
and
FAILED tests/test_webxdc.py::test_webxdc_insert_lots_of_updates - deltachat_rpc_client.rpc.JsonRpcError: {'code': -1, 'message': 'database is locked\n\nCaused by:\n Error code 5: The database file is locked'}
Without this change
when the test returns a `Result`, `cargo test` does not show
the line number.
To make the tests as easy to debug as the panicking tests,
enable `backtrace` feature on `anyhow` and add debug information
to add source line numbers to backtraces.
Now running `RUST_BACKTRACE=1 cargo test` produces backtraces
with the line numbers. For example:
Error: near ",": syntax error in SELECT COUNT(,,*) FROM msgs_status_updates; at offset 13
Caused by:
Error code 1: SQL error or missing database
Stack backtrace:
0: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/result.rs:1962:27
1: deltachat::sql::Sql::query_row::{{closure}}::{{closure}}
at ./src/sql.rs:466:23
2: deltachat::sql::Sql::call::{{closure}}::{{closure}}
at ./src/sql.rs:379:55
3: tokio::runtime::context::runtime_mt::exit_runtime
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/context/runtime_mt.rs:35:5
4: tokio::runtime::scheduler::multi_thread::worker::block_in_place
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/scheduler/multi_thread/worker.rs:438:9
5: tokio::runtime::scheduler::block_in_place::block_in_place
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/scheduler/block_in_place.rs:20:5
6: tokio::task::blocking::block_in_place
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/task/blocking.rs:78:9
7: deltachat::sql::Sql::call::{{closure}}
at ./src/sql.rs:379:19
8: deltachat::sql::Sql::query_row::{{closure}}
at ./src/sql.rs:469:10
9: deltachat::sql::Sql::count::{{closure}}
at ./src/sql.rs:443:76
10: deltachat::webxdc::tests::change_logging_webxdc::{{closure}}
at ./src/webxdc.rs:2644:18
11: <core::pin::Pin<P> as core::future::future::Future>::poll
at /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/future/future.rs:125:9
12: tokio::runtime::park::CachedParkThread::block_on::{{closure}}
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/park.rs:282:63
13: tokio::runtime::coop::with_budget
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/coop.rs:107:5
tokio::runtime::coop::budget
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/coop.rs:73:5
tokio::runtime::park::CachedParkThread::block_on
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/park.rs:282:31
14: tokio::runtime::context::blocking::BlockingRegionGuard::block_on
at /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.34.0/src/runtime/context/blocking.rs:66:9
...
Line 10 of the backtrace contains the line number in the test (2644).
Limit the number of IMAP connections to 1 per minute regardless of the reason of reconnection, but
allow one immediate retry. This is more reliable than ratelimiting only in error conditions because
ratelimiting can't be skipped by mistake. Anyway connections shouldn't be frequent in normal
operation mode.
send_webxdc_status_update JSON-RPC call
and corresponding Rust call sometimes fail in CI with
---
database is locked
Caused by:
Error code 5: The database file is locked
---
Adding more context to send_webxdc_status_update() errors
to better localize the error origin.
Otherwise when connection is lost IMAP may get into infinite loop
trying to parse remaining bytes:
11-21 18:00:48.442 14858 12946 W DeltaChat: src/imap.rs:1457: Failed to process IMAP FETCH result: io: bytes remaining in stream.
11-21 18:00:48.442 14858 12946 W DeltaChat: src/imap.rs:1457: Failed to process IMAP FETCH result: io: bytes remaining in stream.
11-21 18:00:48.442 14858 12946 W DeltaChat: src/imap.rs:1457: Failed to process IMAP FETCH result: io: bytes remaining in stream.
11-21 18:00:48.442 14858 12946 W DeltaChat: src/imap.rs:1457: Failed to process IMAP FETCH result: io: bytes remaining in stream.
11-21 18:00:48.442 14858 12946 W DeltaChat: src/imap.rs:1457: Failed to process IMAP FETCH result: io: bytes remaining in stream.
11-21 18:00:48.442 14858 12946 W DeltaChat: src/imap.rs:1457: Failed to process IMAP FETCH result: io: bytes remaining in stream.
Returning an error bubbles it up to `fetch_idle()`
which will call `trigger_reconnect()` and drop the connection.
To preview the docs, run:
```
scripts/build-python-docs.sh
firefox dist/html/index.html
```
I have removed the Makefile because modern Sphinx Makefile is just a
wrapper for `sphinx-build -M`:
3596590317/sphinx/templates/quickstart/Makefile.new_t
and sphinx-quickstart even has an option `--no-makefile`.
`make.bat` makes even less sense.
In `scripts/build-python-docs.sh` I use `sphinx-build` directly
without `make` wrapper.
