Delete .wav and .mp3 files from Slack

slack_delete_files.py

#!/usr/bin/env python

import re
import requests
import json
import calendar
from datetime import datetime, timedelta

_days_to_keep = 180
_token = ""
_domain = ""

if (len(_token) != 49):
    print("Issue with Slack API token.")
    exit(1)
if (len(_domain) == 0):
    print("Issue with Slack domain.")
    exit(1)

def main():
    last_ts = 0
    launch_ts = str(calendar.timegm((datetime.now() + timedelta(-_days_to_keep)).utctimetuple()))

    # print("This loop may enter an infinite loop because only certain files are being removed.")
    # print("If the Slack API allows filtering on file type, this can be fixed.")
    # print("Until then, when the output stops, break the script.")
    while True:
        files_list_url = 'https://slack.com/api/files.list'
        data = {"token": _token, "ts_from" : last_ts, "ts_to": launch_ts}
        response = requests.post(files_list_url, data = data)
        if len(response.json()["files"]) == 0:
            break
        for f in response.json()["files"]:
            
            max_ts = max(last_ts, f["timestamp"])
            # Only remove wav and mp3 files (typically our standups)
            if re.search('\.wav$', f["name"]) or re.search('\.mp3$', f["name"]):
                print "Deleting file " + f["name"] + "..."
                timestamp = str(calendar.timegm(datetime.now().utctimetuple()))
                delete_url = "https://" + _domain + ".slack.com/api/files.delete?t=" + timestamp
                requests.post(delete_url, data = {
                    "token": _token, 
                    "file": f["id"], 
                    "set_active": "true", 
                    "_attempts": "1"})
            # Adding some logic to avoid the infinite loop
            if max_ts > last_ts:
                last_ts = max_ts
            else:
                last_ts +=1

if __name__ == '__main__':
    main()