exam-manager.app.tools.dicom_provider#

Helper functions for dicom.

Attributes#

DATA_LAKE_DIR

Functions#

resolve_dicom_path(→ pathlib.Path)

Build and validate the requested file path, prevent traversal, return (path, safe_name).

provide_p10_dicom(→ starlette.responses.Response)

Ensure the dataset at path is a valid DICOM Part-10 file.

Module Contents#

exam-manager.app.tools.dicom_provider.DATA_LAKE_DIR#
exam-manager.app.tools.dicom_provider.resolve_dicom_path(workflow_id: str, task_id: str, result_id: str, filename: str) → pathlib.Path#

Build and validate the requested file path, prevent traversal, return (path, safe_name).

exam-manager.app.tools.dicom_provider.provide_p10_dicom(dicom_path: str | pathlib.Path) → starlette.responses.Response#

Ensure the dataset at path is a valid DICOM Part-10 file.

  • If already Part-10, return FileResponse

  • If not Part-10, create minimal File Meta + 128-byte preamble and return StreamingResponse

  • We do not transcode pixel data here; we only wrap the dataset into Part-10.

  • TransferSyntaxUID:

    • If present, we keep it.

    • If missing, we choose based on ds.is_little_endian/is_implicit_VR if known, otherwise default to ExplicitVRLittleEndian (widely supported).