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#!/usr/bin/env python3
import json
import boto3
import time
import urllib.parse
import pprint
import tarfile
import os

def lambda_handler(event, context):

    s3 = boto3.client(
        's3',
        region_name='us-east-1',
    )

    if (event['body'] is not None):
        print("Body is not none!")
        content = event['body']
        postid = dict(urllib.parse.parse_qsl(content))['postid']
    else:
        print("Body Is None!")
        content = pprint.pprint(event)
        postid = "ERROR"

    os.chdir("/tmp")

    fname = postid + " " + str(time.time()) + ".txt"

    with open(fname, "w") as f:
        f.write(content)

    bucket = "ms98-firstbucket"
    commentsfile = "comments.tar"

    s3.download_file(bucket, commentsfile, commentsfile)

    with tarfile.open(commentsfile, "a") as archive:
        archive.add(fname, arcname=fname)

    s3.delete_object(Bucket = bucket, Key = commentsfile)

    with open(commentsfile, "rb") as f:
        s3.upload_fileobj(f, bucket, commentsfile)

    http_res = {}
    http_res['statusCode'] = 200
    http_res['headers'] = {}
    http_res['headers']['Content-Type'] = 'application/json'
    http_res['body'] = "Comment submitted!"

    return http_res