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[wireguard] verify key length

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This commit is contained in:
Nico Schottelius 2020-12-25 10:08:34 +01:00
parent a0fbe2d6ed
commit 663d72269a
1 changed files with 4 additions and 5 deletions
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9
uncloud_net/serializers.py
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@ -38,17 +38,16 @@ class WireGuardVPNSerializer(serializers.ModelSerializer):
msg = _("Supplied key is not a valid wireguard public key") msg = _("Supplied key is not a valid wireguard public key")
""" """
FIXME: verify that this does not create broken wireguard config files, Verify wireguard key.
i.e. contains \n or similar! See https://lists.zx2c4.com/pipermail/wireguard/2020-December/006221.html
We might even need to be more strict to not break wireguard...
""" """
try: try:
base64.standard_b64decode(value) decoded_key = base64.standard_b64decode(value)
except Exception as e: except Exception as e:
raise serializers.ValidationError(msg) raise serializers.ValidationError(msg)
if '\n' in value: if not len(decoded_key) == 32:
raise serializers.ValidationError(msg) raise serializers.ValidationError(msg)
return value return value