On a CivitAI/CivArchive 429, download-model and download-model-get now
return HTTP 429 with {"reason": "rate_limited", "retry_after": N}
instead of a generic 500 string, and the queue row goes back to
"queued" rather than history as failed — so queue drivers can
auto-pause and retry later instead of burning through the queue.
- new DownloadRateLimitError carrying retry_after/host (opt-in via
raise_on_rate_limit on Downloader; other call sites keep the legacy
string behavior)
- fail-fast pre-flight gate in DownloadManager consults
RateLimitCoordinator before acquiring the semaphore slot: hosts in
cooldown get an immediate structured 429, no HTTP request attempted
- best-effort 429 detection for the aria2 backend
A failed aria2 transfer deleted the partial payload while keeping its
.aria2 control file, and "No URI available" (expired CivitAI signed URL)
was treated as a permanent failure, wasting nearly-complete downloads.
- Re-schedule the transfer with a freshly resolved signed URL and
continue=true when aria2 reports "No URI available", bounded by
MAX_TRANSFER_RECOVERY_ATTEMPTS
- Keep payload and .aria2 control file together as a resumable pair
after a failed transfer instead of deleting the payload
- Report and remove orphaned .aria2 control files that have no payload,
both after failures and when restoring persisted downloads
Fixes#1088
Fix ~790 basedpyright errors across the test suite:
- Type stub subclasses of real production classes with super().__init__()
- Add missing generic type arguments and Dict[str, Any] annotations
- Add None guards before subscript/member access
- Adapt tests to production API changes (removed dead handlers,
PersistentModelCache.get_default, _i18n_filter_added location)
- Read AutoV3 directly from the downloaded file's own file_info hashes
(no SHA256 cross-matching against version_info.files, so the value is
captured even when the API omits SHA256)
- Extract normalize_autov3() validation helper shared with the
sha256-matching autov3_from_civitai_files path
- Fall back to the embedded safetensors header hash at download
completion; mark '' (checked-unavailable) so the startup backfill
query (autov3 IS NULL) never revisits the row
- Clear archive-level AutoV3 for zip-extracted models so per-file
header resolution applies to every extracted model
- Remove calculate_sha256 mocking from download_manager tests since
SHA256 now comes from API metadata (not recalculated during download)
- Update chunk_size assertion from 4MB to 16MB in downloader config test
Will Miao