Archives and model workflows: implement OAR, Collada, GLTF, and uploads #74

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hugo · 2026-08-08T08:21:46Z

hugo commented

2026-08-08 08:21:46 +00:00

Objective

Implement OAR asset/terrain/settings archive IO, tar safety, Collada/model conversion, GLTF document/buffer/surface handling, material overrides, and upload workflows.

Deliverables

Enforce extraction-root, path, size, count, depth, and offset limits.
Preserve deterministic file/output ordering and typed DTO conversions.
Separate offline import/export from network upload/pricing and use completed asset/caps layers.

Validation

Archive/GLTF/material/upload tests and golden fixtures pass.
Traversal/zip-bomb-style regressions are rejected safely.
Offline round trips are deterministic.

Prerequisite

Networking/client lifecycle and the earlier world model/manager issues are available; mapped APIs and translated tests are fixed.

Project constraints

New native Rust behavior only; no bridge or C# fallback.
Preserve fixed APIs and translated assertions; reuse completed lower layers and keep privileged live actions opt-in.
Validate bounded untrusted inputs, cancellation, task cleanup, docs, and coverage in the same change.

## Objective Implement OAR asset/terrain/settings archive IO, tar safety, Collada/model conversion, GLTF document/buffer/surface handling, material overrides, and upload workflows. ## Deliverables - Enforce extraction-root, path, size, count, depth, and offset limits. - Preserve deterministic file/output ordering and typed DTO conversions. - Separate offline import/export from network upload/pricing and use completed asset/caps layers. ## Validation - Archive/GLTF/material/upload tests and golden fixtures pass. - Traversal/zip-bomb-style regressions are rejected safely. - Offline round trips are deterministic. ## Prerequisite Networking/client lifecycle and the earlier world model/manager issues are available; mapped APIs and translated tests are fixed. ## Project constraints - New native Rust behavior only; no bridge or C# fallback. - Preserve fixed APIs and translated assertions; reuse completed lower layers and keep privileged live actions opt-in. - Validate bounded untrusted inputs, cancellation, task cleanup, docs, and coverage in the same change.

hugo added this to the 09 - World vertical slices milestone 2026-08-08 08:21:46 +00:00

hugo added the enhancement label 2026-08-08 08:21:46 +00:00

hugo referenced this issue from a commit

2026-08-10 20:31:43 +00:00

Implement native archive and model workflows (#74)

hugo commented

2026-08-10 20:32:27 +00:00

Implemented in commit 55424db and pushed to main.

Highlights:

Added bounded native ustar/OAR reading and deterministic gzip/tar output, canonical UUID_type.ext asset loading/saving, RAW32 terrain IO, region settings XML, and safe callback DTOs.
Enforced checksum, extraction-root/path, link-kind, entry/expanded-size, count, depth, offset, buffer-view, accessor, and scene-cycle limits.
Implemented GLTF/GLB document, buffer, accessor, mesh, material/texture, skin, and animation parsing plus deterministic JSON/GLB serialization.
Implemented deterministic mesh assets, Collada unit/up-axis/effect/material conversion with confined textures and JPEG2000 conversion, and opt-in cancellable mesh pricing/upload through native inventory/caps layers.
Added docs and native API/codegen coverage.

Scoped verification:

archive_model_semantics: 7 passed
asset_document_semantics: 28 passed
asset_capability_semantics material filter: 10 passed
asset_archive unit/security tests: 4 passed
wire_shims: 3 passed
cargo clippy -p libremetaverse --lib --no-deps -- -D warnings
locked offline API compile gate
cargo fmt, generated-shim check, and git diff check

The unrelated inventory-thumbnail failures in the broader capability file were excluded per scope; every material/upload case in that file passed.

Implemented in commit 55424db and pushed to main. Highlights: - Added bounded native ustar/OAR reading and deterministic gzip/tar output, canonical UUID_type.ext asset loading/saving, RAW32 terrain IO, region settings XML, and safe callback DTOs. - Enforced checksum, extraction-root/path, link-kind, entry/expanded-size, count, depth, offset, buffer-view, accessor, and scene-cycle limits. - Implemented GLTF/GLB document, buffer, accessor, mesh, material/texture, skin, and animation parsing plus deterministic JSON/GLB serialization. - Implemented deterministic mesh assets, Collada unit/up-axis/effect/material conversion with confined textures and JPEG2000 conversion, and opt-in cancellable mesh pricing/upload through native inventory/caps layers. - Added docs and native API/codegen coverage. Scoped verification: - archive_model_semantics: 7 passed - asset_document_semantics: 28 passed - asset_capability_semantics material filter: 10 passed - asset_archive unit/security tests: 4 passed - wire_shims: 3 passed - cargo clippy -p libremetaverse --lib --no-deps -- -D warnings - locked offline API compile gate - cargo fmt, generated-shim check, and git diff check The unrelated inventory-thumbnail failures in the broader capability file were excluded per scope; every material/upload case in that file passed.

hugo closed this issue

2026-08-10 20:32:36 +00:00

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Reference: hugo/MetaCrate#74