Add a new version of the existing auth credential used for groups, but
implemented with the zkcredential crate instead of hand-written proofs. Expose
issuance point for the server, and extend existing client methods to support it
and the existing formats transparently.
Each of these updates is required for the following update, and the
final one allows us to use 'record'.
The target SDK version is set to 33, matching the Android app.
And use this to cut down CI testing time: only build armv7 and aarch64
slices of the real library, and x86_64 for the testing library (which
we don't even run in the every-commit CI, but we want to make sure we
haven't broken something in that configuration).
Add a flag to the CLI validation tool and an argument to the bridged validation
functions so users can specify whether a provided message backup should be
validated according to the rules for device-to-device transfers or backups
intended for remote storage.
Then, use FilterExceptions to filter out any exceptions that aren't
declared in the calling method's exception spec. Note that this isn't
perfect: Java's checks for typed exceptions prevents an *extra*
exception from being thrown this way, but it's still possible to
forget to *allow* an exception using FilterExceptions.
This is 99% a mechanical change; the interesting bit is in
gen_java_decl.py and one unusual pattern in NativeErrorsTest.java. No
exception specs were changed here.
These methods wrap any unexpected checked exceptions in AssertionError
after logging them. The next commit will use this to enforce our
exception specifications for methods that wrap JNI calls.
Use the class loader from the main thread to cache java.lang.Class
instances for some libsignal classes.
This enables constructing instances of libsignal classes on threads
where the classes aren't accessible via the default class loader. This
can occur on Android, where threads spawned via the native API only get
access to the system class loader, not the application loader that has
access to the application's class files. Since Tokio worker threads are
spawned via the native API, and the completion process for async tasks
converts results to Java objects, application class instances can't be
used there unless they are preloaded.
Since classes used in client code are only included in the client .jar
file, failure to load classes is a normal occurrence. If there are ever
separate builds for server and client .so library files, this could be
changed to a fatal error.
Run tests that call native TESTING_ functions on Android. This requires
building a separate version of libsignal_jni.so with the testing functions
included. The test code is still omitted from the published artifacts.
CDSI error handling code would attempt to instantiate a nonexistent Java class.
Add the missing class and split up the handling for CDSI lookup errors to reuse
existing error types.
Use the string bridging code introduced previously to provide string arrays to
client directly instead of joining and splitting. This eliminates the use of a
magic ',' character as a delimiter.
Re-raise errors produced by an input stream after bubbling them through Rust
code. This makes the interface less magic and avoids unnecessary
stringification of error values.
Use the GitHub CLI utility, if present, to fetch the size from the logs of the
"Build and Test" workflow run for the merge-base of the current branch and
upstream main. This represents the true "delta" attributable to the current
branch, as opposed to the integral of changes since the last release.
If a client already has the members of a group as ciphertexts, it's
more efficient to receive a GroupSendCredential that way, because then
they get to skip the conversion from ServiceId to UidStruct. If they
don't, however, the existing entry point is going to be both more
convenient and faster.
For Swift and Java, this is an overload of the existing receive()
method; for TypeScript, it's receiveWithCiphertexts.
In particular, some streams seem to override skip() to always return
0, which means that even looping on skip() won't end up skipping the
full amount. Work around this by using a wrapper InputStream that
falls back to read() instead.
This removes a requirement for the streams passed to Mp4Sanitizer and
WebpSanitizer, but providing a good skip() is still recommended.
Rust: UsernameError now has more cases. ProofVerificationFailure is
also split off into its own error type, separate from structural
username errors.
Java: Subclasses of BadDiscriminatorException have been added.
Swift: Some error codes have been renamed and others have been added.
TypeScript: Some error codes have been renamed and others have been
added. Discriminator errors are now proper LibSignalErrors.
- use int instead of promoting to long
- add missing return type to fix compilation
- run auto-formatter
Also add the check that would have caught all of these to CI
This credential is issued by the group server and presented to the
chat server to prove that the holder is a member of *some* group with
a known list of people. This can be used to replace the access key
requirement for multi-recipient sealed sender sends.
