132 lines
4.1 KiB
Python
132 lines
4.1 KiB
Python
import json
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import hashlib
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import logging
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from evidence.models import Annotation
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from evidence.xapian import index
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from dpp.api_dlt import register_device_dlt, register_passport_dlt
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from evidence.parse_details import get_inxi_key, get_inxi
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logger = logging.getLogger('django')
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def get_mac(inxi):
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nets = get_inxi_key(inxi, "Network")
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networks = [(nets[i], nets[i + 1]) for i in range(0, len(nets) - 1, 2)]
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for n, iface in networks:
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if get_inxi(n, "port"):
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return get_inxi(iface, 'mac')
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class Build:
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def __init__(self, evidence_json, user, check=False):
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self.evidence = evidence_json.copy()
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self.json = evidence_json.copy()
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if evidence_json.get("credentialSubject"):
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self.json.update(evidence_json["credentialSubject"])
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if evidence_json.get("evidence"):
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self.json["data"] = {}
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for ev in evidence_json["evidence"]:
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k = ev.get("operation")
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if not k:
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continue
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self.json["data"][k] = ev.get("output")
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self.uuid = self.json['uuid']
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self.user = user
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self.hid = None
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self.chid = None
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self.phid = self.get_signature(self.json)
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self.generate_chids()
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if check:
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return
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self.index()
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self.create_annotations()
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self.register_device_dlt()
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def index(self):
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snap = json.dumps(self.evidence)
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index(self.user.institution, self.uuid, snap)
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def generate_chids(self):
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self.algorithms = {
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'hidalgo1': self.get_hid_14(),
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}
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def get_hid_14(self):
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if self.json.get("software") == "workbench-script":
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hid = self.get_hid(self.json)
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else:
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device = self.json['device']
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manufacturer = device.get("manufacturer", '')
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model = device.get("model", '')
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chassis = device.get("chassis", '')
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serial_number = device.get("serialNumber", '')
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sku = device.get("sku", '')
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hid = f"{manufacturer}{model}{chassis}{serial_number}{sku}"
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self.chid = hashlib.sha3_256(hid.encode()).hexdigest()
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return self.chid
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def create_annotations(self):
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annotation = Annotation.objects.filter(
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uuid=self.uuid,
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owner=self.user.institution,
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type=Annotation.Type.SYSTEM,
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)
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if annotation:
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txt = "Warning: Snapshot %s already registered (annotation exists)"
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logger.warning(txt, self.uuid)
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return
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for k, v in self.algorithms.items():
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Annotation.objects.create(
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uuid=self.uuid,
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owner=self.user.institution,
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user=self.user,
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type=Annotation.Type.SYSTEM,
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key=k,
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value=v
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)
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def get_hid(self, snapshot):
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try:
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self.inxi = self.json["data"]["inxi"]
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if isinstance(self.inxi, str):
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self.inxi = json.loads(self.inxi)
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except Exception:
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logger.error("No inxi in snapshot %s", self.uuid)
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return ""
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machine = get_inxi_key(self.inxi, 'Machine')
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for m in machine:
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system = get_inxi(m, "System")
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if system:
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manufacturer = system
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model = get_inxi(m, "product")
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serial_number = get_inxi(m, "serial")
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chassis = get_inxi(m, "Type")
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else:
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sku = get_inxi(m, "part-nu")
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mac = get_mac(self.inxi) or ""
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if not mac:
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txt = "Could not retrieve MAC address in snapshot %s"
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logger.warning(txt, snapshot['uuid'])
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return f"{manufacturer}{model}{chassis}{serial_number}{sku}"
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return f"{manufacturer}{model}{chassis}{serial_number}{sku}{mac}"
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def get_signature(self, doc):
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return hashlib.sha3_256(json.dumps(doc).encode()).hexdigest()
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def register_device_dlt(self):
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register_device_dlt(self.chid, self.phid, self.uuid, self.user)
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register_passport_dlt(self.chid, self.phid, self.uuid, self.user)
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