Commit Graph

2 Commits

Author SHA1 Message Date
Simon Pinfold
55a15f87ce
feat(assets): add namespaced model_type tags and align tag semantics (#14511)
* feat(assets): add namespaced model type tags

* fix(assets): mark path-derived upload tags automatic

* fix(assets): merge duplicate scan specs

* test(assets): make duplicate path normalization portable

* feat(assets): add loader_path as the authoritative loader locator (#14796)

* fix(assets): filter model_type tags by bucket extension sets

Buckets sharing a base directory (e.g. diffusion_models and a custom
unet_gguf) tagged every file in the directory regardless of whether the
bucket could load it, so .safetensors files were tagged
model_type:unet_gguf and vice versa. Carry each bucket's registered
extension set through get_comfy_models_folders and only emit a
model_type tag when the file extension matches, keeping the empty-set
match-all convention from folder_paths.filter_files_extensions.

Files under a model base matching no bucket now keep only the models
tag instead of every directory-matching model_type tag.

* feat(assets): replace response file_path with persisted loader_path

The old file_path response field was a namespaced storage locator
(models/checkpoints/foo.safetensors): not an absolute path, not unique
identity, and not the value a loader consumes. Nothing needs that shape
on the wire (hash/ID-based locating is the long-term direction), so it
is dropped rather than renamed; the storage-root matching stays internal,
powering display_name.

What loaders DO need is the in-root loader path (category dropped:
models/checkpoints/foo/bar.safetensors -> foo/bar.safetensors). Serve it
as a first-class loader_path field, persisted on asset_references
(migration 0006) and written by every ingest pipeline at insert, so
responses read the column verbatim.

Like the model_type tags, loader_path is a seed-time derivative of the
model folder registry, maintained by the same scan lifecycle (new files seed
fresh values, pruning retires rows whose bucket disappeared). Rows
predating the column serve a null loader_path; databases from before
this stack already need recreating for the base branch's tag changes.

loader_path resolves every registered base including extra_model_paths
entries; display_name only the canonical storage roots. A file can
therefore be loadable with no display name (extra-path models) or the
reverse (unregistered files under the models root), and loader_path is
null exactly when no loader can resolve the file.

* test(assets): lock loader_path matrix (asymmetry, null, persist/read)

Cover the behaviour that has no production change but is easy to regress:
the extra-path asymmetry (loadable but no storage namespace), null
loader_path persistence for orphan files, and the response reading the
stored column with a compute fallback for un-backfilled rows.

* fix(assets): persist subfolder-qualified loader_path for ingested outputs

ingest_existing_file built its seed spec with the file's basename, so
outputs saved into a subfolder persisted loader_path (and the
user_metadata filename that preview URLs split for their subfolder
param) as just the basename: the served locator pointed at a file that
does not exist at that path. Scanner and seeder specs already derive
fname via compute_loader_path; use the same derivation here.

* fix(assets): only extension-matching buckets contribute a loader_path

The model-base match in get_asset_category_and_relative_path ignored
each bucket's extension set, so a file inside a registered base whose
extension the bucket cannot load (e.g. a .txt uploaded into
model_type:checkpoints) advertised a loader_path that no loader list
would ever resolve, while the tag side of the same stack already
excluded it. Apply the extension check used for backend tags (empty set
accepts any extension), keeping loader_path null exactly when no loader
can resolve the file.

* fix(assets): refresh loader_path when re-ingesting an existing reference

upsert_reference only wrote loader_path on the INSERT branch, so
re-ingesting an existing reference (an output overwritten in place, or a
file re-registered after its loader_path derivation changed) kept the
stale or NULL value forever. Write it on the UPDATE branch too, with a
null-safe change guard so a loader_path difference alone is enough to
trigger the update, and identical values stay a no-op.

* fix(assets): repair semantic merge breakage from #14796 and master

Two textually-clean but semantically-broken merges:

- routes.py lost its folder_paths import when #14796's import block
  superseded the base's, while the content-type hardening added via the
  base's master merge still calls folder_paths.is_dangerous_content_type.
- master's SVG download-hardening test uploads with the pre-namespacing
  bare checkpoints tag, which this branch's destination validation
  rejects; use model_type:checkpoints.

---------

Co-authored-by: guill <jacob.e.segal@gmail.com>
2026-07-08 22:00:08 -07:00
Matt Miller
84e0692a3d
feat(assets): cursor-based pagination on GET /api/assets (#14014)
* spec(assets): add cursor pagination params to GET /api/assets

Add 'after' query param and 'next_cursor' response field for keyset
pagination. Matches the cloud Go implementation (BE-893) so frontend
sees a unified contract across runtimes. Offset/limit remain as a
deprecated fallback.

* feat(assets): add cursor encode/decode helpers for keyset pagination

Port of cloud common/pagination/cursor.go. Wire format is base64url of
{"s", "v", "id"} JSON; times are Unix microseconds UTC to match
PostgreSQL timestamp precision.

Includes a byte-identity fixture pinned against the cloud Go wire
format so cross-runtime FE pagination can't silently drift.

* feat(assets): thread cursor through schemas, service, and query layer

list_assets_page accepts an opaque 'after' cursor and returns
next_cursor when more pages are available. The query applies a keyset
WHERE clause and a secondary ORDER BY id for deterministic tiebreak.

Cursor sort field is validated against the request sort, and a
last_access_time sort (OSS-only) falls back to offset/limit. Offset is
ignored whenever a cursor is supplied.

* feat(assets): wire cursor pagination through GET /api/assets handler

Adds integration tests for: full cursor walk, invalid-cursor 400,
sort/cursor mismatch 400, cursor-wins-over-offset, absent next_cursor
when no more results, and pagination stability across deletes.

* fix(assets): address cursor-review verified findings

- Mint next_cursor on every cursor-supported sort, not only when 'after'
  was supplied. A first request (no 'after') previously returned
  next_cursor=None, leaving cursor mode unreachable from a clean start.
- Over-fetch limit+1 so an exactly-full terminal page doesn't mint a
  spurious cursor pointing at a phantom next page.
- Map crafted out-of-range microsecond cursors (OverflowError / OSError
  in datetime construction) to 400 INVALID_CURSOR instead of leaking 500.
- Bump MAX_CURSOR_VALUE_LENGTH 256 -> 512 to match the AssetReference
  name column max; without this, a long-named asset minted a cursor the
  same server then refused on the next request. Cross-runtime byte
  identity with cloud is unaffected because no cloud cursor ever carries
  a value > 256 (cloud schema doesn't permit it).
- Return None from _encode_next_cursor when the boundary row carries a
  NULL sort value (e.g. an Asset without size_bytes backfilled), instead
  of silently encoding 0 and mis-positioning the keyset.
- Fix schemas_in.py comment so it matches actual handler behavior
  (last_access_time + 'after' raises 400, does not fall back).
- Add AssetsApiError schema + 400 response to GET /api/assets in
  openapi.yaml so generated clients know the INVALID_CURSOR envelope.
- Extend integration coverage: first-page mint, exact-multiple terminal
  page, cursor walks for created_at/updated_at/size sorts, datetime
  overflow surfaces as 400 not 500.
- Add unit coverage for datetime overflow and 512-char round-trip.

* feat(assets): bind cursor to sort order + Go-compat JSON escaping

Address three needs-judgment items from the cursor-review judge synthesis:

1. Cursor wire format now includes an "o" key carrying the sort
   direction ("asc" / "desc") it was minted under. A request that
   replays the cursor with a flipped `order` parameter is rejected
   with 400 INVALID_CURSOR instead of silently walking the wrong
   direction. Legacy cursors without "o" still decode (the binding
   is best-effort until cloud mirrors the field — follow-up filed
   separately).

2. JSON serialization now escapes `<`, `>`, `&`, U+2028, U+2029
   to mirror Go's default `json.Marshal` behavior. Without this, an
   asset name containing those characters produced different bytes on
   Python vs cloud Go. The escaped form is what both runtimes emit.

3. Add direct query-layer tests for the keyset tiebreaker — the secondary
   ORDER BY id branch was previously unexercised. Two scenarios: all
   rows share a primary sort value, and mixed ties straddle page
   boundaries. Both assert no row is dropped or duplicated across the
   walk.

Wire-format note: Python cursors now differ from current cloud cursors
by exactly the "o" key. Cloud follow-up will bring the two back into
byte alignment.

* fix(assets): address bot review comments

- Soften offset param prose: it's not deprecated, just not preferred for
  sequential walks. Random-access UIs (jump-to-page, item count displays)
  legitimately still want offset, so dropping the 'deprecated' framing
  rather than promoting it to a machine-readable deprecated:true flag.
- Add explicit HTTP status assertions before every json() / next_cursor
  read in test_list_cursor.py so a failing request surfaces as an HTTP
  error instead of a confusing KeyError on a 4xx/5xx body.

* feat(assets): require cursor o field, drop legacy permissive path

Cursor pagination hasn't shipped on either runtime yet — this PR is
still draft and cloud's mirror is just behind it — so there are no
legacy no-o cursors in the wild. Make o mandatory from day one
rather than landing permissive and tightening later.

decode_cursor now rejects any payload without o (or with a non-string
o) as malformed. CursorPayload.order becomes a required str. Tests
that constructed CursorPayload directly now pass order="desc";
test_legacy_cursor_without_order_accepted flips to
test_cursor_without_order_rejected.

* chore(assets): drop cross-repo prose from cursor comments

Strip prose references to sibling Go implementations and external
ticket IDs from cursor.py, the cursor tests, the keyset integration
tests, asset_management's sort-field comment, and the legacy
prompt_id alias comment. Pure docstring/comment scrub — no behavior
or wire-format changes. x-runtime: [cloud] field annotations in
openapi.yaml are unchanged; those are the spec's structural
cross-runtime convention, not internal references.

* test(assets): include 'o' in microsecond-boundary cursor payload

The boundary test was building a cursor without the required `o` key, so
decode failed on the missing-order branch before reaching the µs-overflow
path the test is asserting. Both paths return 400 INVALID_CURSOR so the
assertion passed for the wrong reason. Add `o` to the payload and matching
`order=` to the request so the decode reaches the intended branch.

* fix(assets): address ultrareview findings on cursor pagination

Six fact-checked findings from the multi-model review pass:

- Encoder/decoder length asymmetry: encode_cursor now rejects empty id,
  oversized id (>128), oversized value (>512), and invalid order tokens
  symmetrically with decode_cursor. Prevents the same server from minting
  a cursor it then 400s on the next request (e.g. a filesystem-scanned
  asset name >512 chars). The bad-order path now raises InvalidCursorError
  (still subclasses ValueError) so route-layer handling stays uniform.
- Raw U+2028/U+2029 in cursor.py source: ripgrep treated those lines as
  line-terminators, confirming the bytes were the actual separators. Any
  editor save / autoformat / git tooling that normalizes invisibles would
  silently break the encoder. Replaced with explicit 
 / 

  Python escape sequences.
- set(seen) == set(names) hid ordering regressions: a cursor walk that
  dropped a row at a page boundary or returned duplicates could pass.
  Reworked the assertion to (1) reject duplicates, (2) require full
  coverage, and (3) assert strict positional order for size sort, the
  only field with a clock-independent ordering.
- Flaky time.sleep(0.05) between inserts: Windows CI clock resolution is
  ~15ms, so back-to-back inserts under load could collide and exercise
  the tiebreaker instead of the documented path. Removed the sleep and
  let the strengthened assertion above carry coverage / no-duplicates,
  with size sort carrying strict order.
- Cursor error envelope diverged from the rest of routes.py: cursor 400s
  emitted {error: {code, message}} while every other 400 in the file
  emits {error: {code, message, details}} via _build_error_response.
  Switched to _build_error_response and added the details field to the
  AssetsApiError schema in openapi.yaml.
- "Byte-identity fixtures" only checked substring containment, defeating
  the test class's stated purpose of pinning the wire format. Switched
  to exact-bytes equality against an inline expected payload string per
  fixture, so any whitespace / key-order / escape drift fails loudly.

Also dropped Go / json.Marshal references from docstrings — the byte
format is the contract, not the runtime that mints it.

* fix(assets): cap cursors by encoded wire size, not just char count

Char-count guards on value/id can still let multibyte or escape-heavy
inputs blow past MAX_ENCODED_CURSOR_LENGTH once UTF-8 + escape expansion
+ base64url runs. A 512-character name of 'é' (2 bytes UTF-8) or '<'
(serializes to the 6-byte '<' escape) passes the char check, mints
a ~1500-byte cursor, then 400s when handed back on the next request.

Compute the final encoded form and reject it before returning if it
exceeds the wire cap. Adds regression tests for both inflation paths.

* refactor(assets): extract cursor JSON escaping helper; size wire cap above per-field caps

Addresses review feedback on cursor.py:

- Extract the inline escape chain into _apply_wire_compatible_json_escapes()
  with a comment pinning it to the wire format's escape set, so the parity
  intent is explicit rather than reading as an ad-hoc transform.
- Raise MAX_ENCODED_CURSOR_LENGTH to 8192 (comfortably above the ~5.2KB
  worst-case the per-field caps can produce) and drop the mint-time length
  guard. Encoder/decoder symmetry now holds by construction: the encoder
  can't produce a cursor the decode path rejects, so there is no confusing
  user-visible 'cursor too long' failure at mint time.
- Rewrite the two over-wire-cap tests to assert worst-case multibyte and
  escape-heavy values mint and round-trip, instead of being rejected.

* refactor(assets): drop cross-runtime cursor escaping; cursors are opaque

The custom JSON escaping of <, >, &, U+2028, and U+2029 existed only to
keep the encoded cursor byte-identical with the Cloud implementation of
the same payload format. Cursors are opaque tokens, so byte-level
compatibility across implementations is not needed — plain json.dumps
output is sufficient. Remove the escaping helper and the byte-identity
test fixtures that pinned the wire format; keep round-trip coverage for
the affected characters.

---------

Co-authored-by: guill <jacob.e.segal@gmail.com>
2026-06-09 21:14:03 -07:00