a read error while copying one entry (a zip CRC mismatch, a corrupt deflate stream) was returned from `add`. That aborted the walk, and `Extract` threw away every entry already stored. So a large war with one damaged, irrelevant entry produced zero packages with the feature on, while java's legacy path (which reads only the entries it needs) still cataloged it.
- a read error on one entry now drops that entry and marks the resolver truncated (`entry "x" could not be read: ...`), and the walk continues
- if the stream itself breaks partway (a truncated `.tar.gz`), whatever was read before the break is kept and the archive is truncated. With nothing read it is still an error, as before
- disk limit and decompression budget errors still stop the walk
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
`identifyFormat` accepted any extractor mholt identified, which put the 7z and rar decoders (`bodgit/sevenzip`, `rardecode`) on untrusted input with no test coverage. Only zip, tar and compressed tar are opened now, until other formats are deliberately supported.
This also fixes java resource adapters: a `.rar` that is really a zip used to be identified by name as RAR and fail to extract. An unsupported identification now falls through to the zip end-of-central-directory check, so it's read as the zip it is.
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
sub-pipeline catalogers were already run under `runTaskSafely`, but extraction wasn't: the zip, tar and compressor decoders run on untrusted bytes, and a panic in one unwound the whole walk and failed `CreateSBOM` with "failed to run tasks".
- `processArchive` recovers and returns the panic (with its stack) as an error at the archive's coordinates, so it becomes an unknown and the sibling archives are still cataloged
- `Extract` now defers `Cleanup` on failure instead of calling it on each error path, so a panic no longer leaks the limiter charge or the spill file
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
Keith Zantow
Alex Goodman