The platform data comes from the parent process, which should normally
be considered trusted (if we don’t trust it, it can do all sorts of
other things to mess this process up, such as setting
`LD_LIBRARY_PATH`).
However, it can also come from any process which calls `CommandLine`
over D-Bus, so always has to be able to handle untrusted input. In
particular, `v`-typed `GVariant`s must always have their dynamic type
validated before having values of a static type retrieved from them.
Includes unit tests.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1904
They come from an external process, so they must be validated.
In particular, it’s always easy to forget to validate the type of a
`GVariant`, and just try to get the stored value using a well-known
type; but that’s a programming error if the `GVariant` actually stores a
different type. Always check the variant type first if loading from a
`v`.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1904
These actions are activated as a result of receiving the `ActionInvoked`
signal from `org.freedesktop.Notifications`. As that’s received from
another process over D-Bus, it’s feasible that it could be malformed.
Without validating the action and its parameter, assertions will be hit
within the `GAction` code.
While we should be able to trust whatever process owns
`org.freedesktop.Notifications`, it’s possible that’s not the case, so
best validate what we receive.
Includes unit tests.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1904
This test is fairly pointless, but puts the infrastructure in place for
adding more tests for `GFdoNotificationBackend` in upcoming commits.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1904
Invoking an action on a notification should remove it (by default,
unless the `resident` hint is set, but GLib doesn’t currently support
that).
If, somehow, an invalid action is invoked on the notification, that
shouldn’t cause it to be removed though, because no action has taken
place. So change the code to do that.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
As with the previous commit, the arguments to `ActivateAction` have to
be validated before being passed to `g_action_group_activate_action()`.
As they come over D-Bus, they are coming from an untrusted source.
Includes unit tests for all D-Bus methods on `GApplication`.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1904
The action name, parameter and new state are all controlled by an
external process, so can’t be trusted. Ensure they are validated before
being passed to functions which assert that they are correctly typed and
extant.
Add unit tests.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1904
Using `test_run_name` in the path for the isolated dir tree for a test
is fine on Unix, because the `/` separator from GTest paths is suitable
as a file system separator.
On Windows, however, it doesn‘t work when mixed and concatenated with
paths which use backslashes. In particular, byte-by-byte path
comparisons don’t work. There are likely also issues if running on a
system with non-UTF-8 file system encoding.
Fix that by storing a file system path version of `test_run_name`
separately, and using the correct `G_DIR_SEPARATOR` for the host OS.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
That file is created if running the `unstable_tests` suite succeeds. It
can fail, though, leaving that log file nonexistent. There’s no point in
failing the whole test run by bailing out if postprocessing the log file
fails.
Occasionally postprocessing can fail with a `FileNotFoundError`.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Some applications (eg., gnome-photos) really want a large thumbnail,
if one can be created. Simply falling back to a smaller one (probably
created by an old nautilus), without giving the application a chance
to create a bigger thumbnail, is undesirable because they will appear
fuzzy.
Therefore, at separate attribute sets for all the thumbnail sizes
that are supported in the spec: normal/large/x-large/xx-large.
The old attribute will now return by default the biggest available, as
it used to be, but also including the x-large and xx-large cases.
Co-Authored-by: Marco Trevisan <mail@3v1n0.net>
Fixes: #621
We have meson nowadays, so tests are timing out by default and test timeout
may vary depending on the meson test parameters or test setups.
So don't hardcode it using alarm().
When an object is revitalized and a notify callbacks increased the reference
counter of the object, we are calling the toggle notifier twice, while it
should only happen if also the actual reference count value is 1 (after
having been decremented from 2).
If an object gets revitalized during the dispose vfunc, we need to call
toggle refs notifiers only if we had 2 references and if the object has
the toggle references enabled.
This may change in case an object notifier handler changes this status,
so do this check only after we've called the notifiers so that in case
toggle notifications are enabled afterwards we still call the handlers.
We were reading if an object has toggle references even if this was not
really relevant for the current object state, as we only need to notify
when going from 2 to 1 references, so first ensure that this is the case
and then check if we have toggle references enabled in the object.
This is a micro-optimization, for the way flags are defined, but still
an operation we can avoid in most cases.
Even though the check is likely to be relevant if the object is finalized,
it may still give some indication if called while an instance has just lost
the last reference.
So use `g_return_if_fail` for consistency with the rest of the code.
In case they differ from the defaults, we probably want to ignore them
when listing filesystems which are interesting to the user.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This reworks commit 20e1508e6e, for two
reasons:
- Upstream dbus.git now does the same (although this isn’t yet reflected
in the online version of the D-Bus Specification); see
https://gitlab.freedesktop.org/dbus/dbus/-/merge_requests/209.
- It allows local-prefix (e.g. jhbuild) builds of GLib to build in a
custom prefix while still interacting with system services using the
system-wide `/run` directory. To do so, pass `-Druntime_dir=/run` to
meson configure.
As documented in the `NEWS` file in
https://gitlab.freedesktop.org/dbus/dbus/-/merge_requests/209, it’s only
valid to use `/run` – rather than `/var/run` – for D-Bus if the two
paths are interoperable. i.e. `/var/run` should be a symlink to `/run`,
and the D-Bus daemon should be configured to put its socket there.
This commit deliberately doesn’t introduce a special `system_socket`
configure option for specifying where the D-Bus system socket lives, as
that would only be useful for a distribution which sets `runstatedir` to
something other than `/var/run` or `/run`, which seems unlikely. We
could add such an option in future, though, if a distribution comes
forward with such a requirement.
See discussion on
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/3095#note_1605502.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This will be used in upcoming commits to allow the previously-hardcoded
`/run` path to be set at configure time.
Most people will not want to change it from `/run`, even when building
test builds, as otherwise interaction with system mounts and services
will not work.
Inspired by equivalent changes in dbus.git in their commit
ff92efa389a57a5250c6996df6614234d4d462e0.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
`join_paths()` automatically drops all preceding path elements if an
argument to it is an absolute path. The `/` is a tidier synonym for
`join_paths()`.
This introduces no functional changes.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The value of `wrote_bytes` will never be negative, so there’s no need to
store it in a signed type.
Add a couple of assertions to validate that it never decreases and hence
can never go negative.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
under cygwin socklen_t is signed which leads to warnings like:
warning: comparison of integer expressions of different signedness:
‘long unsigned int’ and ‘socklen_t’ {aka ‘int’} [-Wsign-compare]
In both cases we compare against some small fixed sizes, so cast them
to socklen_t.
cygwin defines socklen_t as int, unlike everywhere else where it is uint32_t (afaics),
so signed vs unsigned.
The recently added -Werror=pointer-sign in 4353813058
makes the build fail under cygwin now with something like:
error: pointer targets in passing argument 5 of ‘getsockopt’ differ in signedness [-Werror=pointer-sign]
This changes guint to socklen_t where needed for getsockname, getpeername and getsockopt.
They return floating references, so that should be reflected in the
introspection annotations.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
In case g_atomic_int_compare_and_exchange() check fails we ended up doing
another atomic get to figure out what it was the old reference count,
however, we can avoid this by using the full version of the function that
returns the value before the exchange happened as an out value.
In both these cases, the static analyser (Coverity) was worrying that
the array `data`/`pdata` wasn’t allocated before an element was written
to. That was a false positive: all the necessary conditions are met in
both cases for `g_{ptr_,}array_maybe_expand()` to always allocate the
array.
But it makes things a bit easier for the analyser if we add an assertion
to double-check that.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Coverity CID: #1474426, #1489512
