Export Attached file in context of full export

[nino-filigran]

Use case

In context a full JSON export, create an export of all attached files (at least pdf, encoded in json)

Steps to reproduce:

• Go in a report that has file attached (for instance a PDF)
• click on Generate an export in full, JSON
• check the export

Expected result:

• files should be contained in the JSON in base64

Current Output:

• files are not in the JSON

[SamuelHassine]

Already in the source code of the Python library, opencti_stix2.py, lines 1938:

# Files
        if "importFiles" in entity and len(entity["importFiles"]) > 0:
            entity["x_opencti_files"] = []
            for file in entity["importFiles"]:
                url = (
                    self.opencti.api_url.replace("graphql", "storage/get/") + file["id"]
                )
                data = self.opencti.fetch_opencti_file(url, binary=True, serialize=True)
                entity["x_opencti_files"].append(
                    {
                        "name": file["name"],
                        "data": data,
                        "mime_type": file["metaData"]["mimetype"],
                        "version": file["metaData"].get("version", None),
                    }
                )

[SamuelHassine]

Not sure why it is not working anymore....

[aHenryJard]

FYI I transfered the issue from opencti project to client-python, since I need it on the PR.