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August 4, 2020 02:50
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| import json | |
| from urllib.parse import parse_qs | |
| import urllib.parse | |
| import boto3 | |
| import secrets | |
| import logging | |
| import os | |
| import base64 | |
| log = logging.getLogger() | |
| log.setLevel(logging.INFO) | |
| def lambda_handler(event, context): | |
| log.info(event.get("body")) | |
| qs = parse_qs(event.get("body")) | |
| uname = qs.get("uname")[0] | |
| pwd = qs.get("password")[0] | |
| dynamodb = boto3.resource('dynamodb') | |
| table = dynamodb.Table(os.environ['userTable']) | |
| response = table.get_item(Key={'userid': uname}) | |
| json_str = json.dumps( response['Item']) | |
| #using json.loads will turn your data into a python dictionary | |
| resp_dict = json.loads(json_str) | |
| dbpass = resp_dict.get("password") | |
| #Decrypt password | |
| log.info('key id:'+os.environ['keyid']) | |
| key = os.environ['keyid'] | |
| client = boto3.client('kms') | |
| response = client.decrypt( | |
| CiphertextBlob=(base64.b64decode(dbpass)), | |
| KeyId=key | |
| ) | |
| log.info("Decrypted value") | |
| decryptedPass = response['Plaintext'].decode('UTF-8') | |
| response = {} | |
| if decryptedPass == pwd : | |
| response['status'] = 'Login Success' | |
| return { | |
| 'statusCode': 200, | |
| 'body': json.dumps(response) | |
| } | |
| else: | |
| response['status'] = 'Login Failed' | |
| return { | |
| 'statusCode': 200, | |
| 'body': json.dumps(response) | |
| } |
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