Function compute_content_id

vulnerabilities/utils.py:646–691

Compute a unique content_id for an advisory by normalizing its data and hashing it. :param advisory_data: An AdvisoryData object :return: SHA-256 hash digest as content_id

(advisory_data)

def compute_content_id(advisory_data):
    """
    Compute a unique content_id for an advisory by normalizing its data and hashing it.

    :param advisory_data: An AdvisoryData object
    :return: SHA-256 hash digest as content_id
    """

    # Normalize fields
    from vulnerabilities.importer import AdvisoryData
    from vulnerabilities.models import Advisory

    if isinstance(advisory_data, Advisory):
        normalized_data = {
            "aliases": normalize_list(advisory_data.aliases),
            "summary": normalize_text(advisory_data.summary),
            "affected_packages": [
                pkg for pkg in normalize_list(advisory_data.affected_packages) if pkg
            ],
            "references": [ref for ref in normalize_list(advisory_data.references) if ref],
            "weaknesses": normalize_list(advisory_data.weaknesses),
        }
        normalized_data["url"] = advisory_data.url

    elif isinstance(advisory_data, AdvisoryData):
        normalized_data = {
            "aliases": normalize_list(advisory_data.aliases),
            "summary": normalize_text(advisory_data.summary),
            "affected_packages": [
                pkg.to_dict() for pkg in normalize_list(advisory_data.affected_packages) if pkg
            ],
            "references": [
                ref.to_dict() for ref in normalize_list(advisory_data.references) if ref
            ],
            "weaknesses": normalize_list(advisory_data.weaknesses),
        }

        normalized_data["url"] = advisory_data.url

    else:
        raise ValueError("Unsupported advisory data type for content ID computation")

    normalized_json = json.dumps(normalized_data, separators=(",", ":"), sort_keys=True)
    content_id = hashlib.sha256(normalized_json.encode("utf-8")).hexdigest()

    return content_id


def compute_content_id_v2(advisory_data):