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tor-dirmgr: Return an error if storage is readonly and DB is missing/incompatbile.
Closes #1497
See merge request tpo/core/arti!2283
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missing/incompatbile.
This fixes a bug in `SqliteStore`'s constructor: previously, it would
unconditionally try to create the missing database, even if it didn't
have write access. As a result, it was impossible to reliably start
multiple concurrent arti processes configured with the same (empty or
nonexistent) cache_dir, because many of them would fail with errors such
as
```
attempt to write a readonly database: Error code 8: Attempt to write a readonly database
```
Returning a `LocalResourceAlreadyInUse` error kind here enables us to
leverage the retry loop from `TorClientBuilder::create_unbootstrapped`
(which retries on local resource errors if `local_resource_timeout` is
set).
Closes #1497
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Sadly, rustc seems to want us to mark this allow in several places.
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dirmgr::storage: Treat a missing blob file as an absent object.
Closes #1466
See merge request tpo/core/arti!2200
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SQL is case-insensitive, but it is still nice to be consistent.
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This patch removes files from dir_blobs if they are not referenced
from the database, or if their filenames are not valid UTF-8.
(If they were not valid UTF-8, we wouldn't have put them in our
database.)
To ensure that there can't be any race conditions, we only do this
when the file is a bit old.
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Previously, we were putting an (optional) db.sql file and our blobs
into the same path, which is not what we do outside of our tests.
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Without this, "ON DELETE CASCADE" will do nothing.
Part of fixing #1466.
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Previously it was counted as a hard error, which would cause an
absolute failure to start if a blob file had been deleted improperly
-- for example, by a renegade cache-cleaner that had decided to
remove the largest files it could find.
Upon encountering a missing blob, we remove it from the database as
well: if we did not, then unavailable consensuses could still cause
us to try to fetch consensus diffs, because their rows would still
be present.
Fixes #1466.
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This should help limit our memory usage when restarting from cache.
Possible (imperfect) solution for #1027.
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Related to C-tor MR:
https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/819
Signed-off-by: David Goulet <[email protected]>
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Per comments on #1383, we're keeping these methods.
This commit replaces the "TODO" comments with comments explaining
why it's okay that this methods are unused.
Part of #1383.
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This commit is automatically generated.
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This seems to be used only in tests, since at least 2022.
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C-tor commit for this change:
e3e4fa35e8b9368ac549db4da3240aba1ee3054e
Signed-off-by: David Goulet <[email protected]>
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In all the uses in-crate, this is just a RealCoarseTimeProvider.
Now all the compound runtimes impl CoarseTimeProvider.
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Since Rust 1.66, std's default works properly for enums, provided that
the default variant is a unit.
Review all uses of `#[educe(default)]` on enums and replace them with
std where possible, which is most of them.
In 1.66 and later, std's `#[derive(Default)]` doesn't infer any
generic bounds on the derived impl, where it's an enum - since the
unit variant can always be constructed. So this change doesn't add
any generic bounds and is not API-visible.
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Prompted by clippy.
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This commit makes the `dir_mgr_config` method of the `TorClientConfig`
struct public.
It might be questionable whether we should make this function public or
switch to a `TryInto` trait in general, which also seems like an even
Rustier solution Rustier solution.
Fixes #1175
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Filed
https://gitlab.torproject.org/tpo/core/arti/-/issues/1177
proposing a final fix.
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Filed
https://gitlab.torproject.org/tpo/core/arti/-/issues/1176
proposing a final fix.
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FTR I don't think agree with clippy on this question, but then I often
don't.
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This code needs fs_mistrust::Error and tor_error::ErrorKind. I think
we probably don't want fs_mistrust to depend on tor_error or vice
versa.
tor_persist is approximately the place where these two threads of
thought come together, and it's currently the lowest place where this
is needed.
Use it in tor-dirmgr too, which is currently the other place that
embodies this knowledge about fs_mistrust::Error.
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This variable contains precisely the value of cache_dir from
arti_client::config::StorageConfig and it should therefore have the
same name.
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cargo fmt, precisely.
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For now we do this by changing the meaning of the name
`MockSleepProvider` in runtime.rs. This is a bodge to reduce noise in
this diff.
Consequences at call sites:
* If the type is named somehow, the other type must be used.
* SimpleMockTimeProvider calls it jump_wallclock rather than jump_to,
which is IMO a better name. (MockRuntime will change in a moment.)
* SimpleMockTimeProvider's advance() function isn't async and doesn't
yield. But none of the call sites actually mind that.
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This threads the country codes work through the rest of the codebase:
- `tor-dirmgr` will now enable GeoIP with the embedded database when the
`geoip` future is enabled
- This can be extended later using the `DirMgrConfig` to allow
specifying a custom database; this is not done here, though
- `tor-circmgr`'s `SupportedCircUsage` and `TargetCircUsage` fields gain
new `country_code` members to allow filtering circuits by country
- These are `()` in builds where the `geoip` feature is not enabled --
doing it this way means we don't have to copy and paste huge swathes
of code, since we can't use `#[cfg]` in patterns
- `ExitPathBuilder` gains (hacked-in) support for choosing a relay with
the correct country code
- Due to the lack of conjuction, we just copy and paste a small bit,
pending further refactoring
- `StreamPrefs` now lets you specify a country code, letting embedders
make use of the feature
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I have no idea why these became necessary.
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Nightly rustdoc now warns if you have a link that isn't necessary,
and if you have a link that might refer to two different things.
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It's simpler to always use a `String` to represent directory request bodies.
We no longer need the `StringBody` trait.
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Previously, the `Requestable` trait assumed the body of the request
would always be empty (`http::Request<()>`). This change replaces the
hardcoded `()` body type with the `Requestable::Body` associated type
(which will allow implementors to create requests with non-empty
bodies). This will enable us to reuse the `Requestable` trait for
building `POST` requests for uploading descriptors.
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