A
f367103ceb
Security: - Serve generated profiles at /api/profile/<random-token> instead of /api/profile/<sequential-int>. Profiles carry Ki/OPc, so the enumerable id scheme allowed anyone on the WiFi to harvest all subscriber keys. Unknown tokens return a plain 404 so they can't be probed. Robustness: - Open5GS/free5gc adapters use short MongoDB timeouts so an unreachable core fails provisioning fast instead of blocking ~30s on the default. - Profile cache is now a size-capped LRU (OrderedDict) to prevent unbounded memory growth. - load_config rejects empty/non-mapping YAML and validates network.op_key is a 16-byte hex string. Tests: +25 (test_app.py API coverage, test_utils.py); 78 pass. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
import logging
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from pymongo import MongoClient
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from .base import CoreAdapter
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logger = logging.getLogger(__name__)
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class Open5GSAdapter(CoreAdapter):
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def __init__(self, mongodb_uri: str, database_name: str = "open5gs"):
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# Short timeouts so a down/unreachable core fails the provision fast
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# instead of blocking the request for pymongo's 30s default.
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self.client = MongoClient(
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mongodb_uri,
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serverSelectionTimeoutMS=3000,
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connectTimeoutMS=3000,
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socketTimeoutMS=3000,
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)
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self.db = self.client[database_name]
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def add_subscriber(self, imsi: str, ki: str, opc: str) -> None:
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"""Upsert a subscriber into the Open5GS MongoDB collection."""
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doc = {
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"imsi": imsi,
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"security": {
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"k": ki,
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"opc": opc,
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"amf": "8000",
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"sqn": 0,
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},
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"ambr": {
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"downlink": {"value": 1, "unit": 3},
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"uplink": {"value": 1, "unit": 3},
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},
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"slice": [
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{
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"sst": 1,
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"default_indicator": True,
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"session": [
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{
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"name": "internet",
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"type": 3,
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"ambr": {
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"downlink": {"value": 1, "unit": 3},
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"uplink": {"value": 1, "unit": 3},
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},
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}
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],
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}
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],
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}
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self.db.subscribers.replace_one({"imsi": imsi}, doc, upsert=True)
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logger.info(f"Added subscriber {imsi} to Open5GS")
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def remove_subscriber(self, imsi: str) -> None:
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self.db.subscribers.delete_one({"imsi": imsi})
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logger.info(f"Removed subscriber {imsi} from Open5GS")
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def list_subscribers(self) -> list:
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return list(self.db.subscribers.find({}, {"_id": 0}))
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