98 lines
3.3 KiB
Python
98 lines
3.3 KiB
Python
from rest_framework import serializers, exceptions
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from otpauth.models import OTPSeed
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import pyotp
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import otpauth
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class OTPSerializer(serializers.ModelSerializer):
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class Meta:
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model = OTPSeed
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fields = ('name', 'realm', 'seed')
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read_only_fields = ('seed',)
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def create(self, validated_data):
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validated_data['seed'] = pyotp.random_base32()
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return OTPSeed.objects.create(**validated_data)
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class VerifySerializerV1(serializers.Serializer):
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"""
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This is the first version of the serializer that would authenticate the request
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itself. This is not necessary anymore starting from version 0.5
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Code to be removed prior to 1.0
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"""
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name = serializers.CharField(max_length=128)
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token = serializers.CharField(max_length=128)
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realm = serializers.CharField(max_length=128)
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verifyname = serializers.CharField(max_length=128)
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verifytoken = serializers.CharField(max_length=128)
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verifyrealm = serializers.CharField(max_length=128)
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def save(self):
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token_in = self.validated_data.get('token')
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name_in = self.validated_data.get('name')
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realm_in = self.validated_data.get('realm')
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verifytoken = self.validated_data.get('verifytoken')
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verifyname = self.validated_data.get('verifyname')
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verifyrealm = self.validated_data.get('verifyrealm')
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# 1. Verify that the connection might authenticate
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try:
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db_instance = otpauth.models.OTPSeed.objects.get(name=name_in, realm=realm_in)
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except (OTPSeed.MultipleObjectsReturned, OTPSeed.DoesNotExist):
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raise exceptions.AuthenticationFailed()
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totp = pyotp.TOTP(db_instance.seed)
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if not totp.verify(token_in, valid_window=3):
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raise exceptions.AuthenticationFailed()
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# 2. Verify the requested data
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try:
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verifyinstance = otpauth.models.OTPSeed.objects.get(name=verifyname, realm=verifyrealm)
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except (OTPSeed.MultipleObjectsReturned, OTPSeed.DoesNotExist):
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raise exceptions.PermissionDenied()
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totp = pyotp.TOTP(verifyinstance.seed)
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if not totp.verify(verifytoken, valid_window=3):
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raise exceptions.PermissionDenied()
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print("All verified!")
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return verifyinstance
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class TokenSerializer(serializers.Serializer):
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name = serializers.CharField(max_length=128)
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token = serializers.CharField(max_length=128)
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realm = serializers.CharField(max_length=128)
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token_name = 'token'
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name_name = 'name'
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realm_name = 'realm'
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def save(self):
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token_in = self.validated_data.get('token')
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name_in = self.validated_data.get('name')
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realm_in = self.validated_data.get('realm')
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# 1. Verify that the connection might authenticate
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try:
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db_instance = otpauth.models.OTPSeed.objects.get(name=name_in, realm=realm_in)
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except (OTPSeed.MultipleObjectsReturned, OTPSeed.DoesNotExist):
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raise exceptions.AuthenticationFailed()
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totp = pyotp.TOTP(db_instance.seed)
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if not totp.verify(token_in, valid_window=3):
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raise exceptions.AuthenticationFailed()
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return (db_instance, token_in)
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class VerifySerializer(TokenSerializer):
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token_name = 'verifytoken'
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name_name = 'verifyname'
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realm_name = 'verifyrealm'
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