Slack Cleaner

Mon 20 March 2017

in tech

If you find you're running out of space on Slack, it may be that you have too many images floating in storage. However, deleting them via the Slack interface is tedious to say the least.

Enter stage left: the Slack API. Here's a script I wrote to list and then delete any images older than a given number of months.

#!/usr/bin/env python

import sys
import json
import time
import datetime
import requests

try:
    user = open('user.slack', 'rb').readline().strip()
    token = open('token.slack', 'rb').readline().strip()
except IOError:
    print('Create user.txt and token.txt')
    sys.exit()

baseurl = 'https://slack.com/api'


def epoch_to_date(seconds):
    return time.strftime('%Y-%m-%d', time.gmtime(float(seconds)))


def get_date_seconds(months_ago):
    d = datetime.date.today() - datetime.timedelta(months_ago*365/12)
    return int(d.strftime('%s'))


def get_file_ids(token, user, months_ago):
    files_dict = {}
    date_seconds = get_date_seconds(months_ago)
    list_url = '%s/files.list?token=%s&user=%s&ts_to=%d&types=images' \
        % (baseurl, token, user, date_seconds)
    ret = requests.get(list_url)
    try:
        js = json.loads(ret.text)
    except:
        print('Could not turn ret.txt into json')
        sys.exit()
    # create sortable (by date) dictionary
    for slack_file in js['files']:
        files_dict[slack_file['created']] = (slack_file['id'],
                                             slack_file['name'])
    return files_dict


def delete_files(files_dict):
    _delete_url = '%s/files.delete?token=%s&file=%s'
    created_list = files_dict.keys()
    created_list.sort()
    for create_time in created_list:
        file_id = files_dict[create_time][0]
        file_name = files_dict[create_time][1]
        file_date = epoch_to_date(create_time)
        print('[Created: %s] [id: %s] Deleting %s' % (file_date, file_id,
                                                      file_name,)),
        delete_url = _delete_url % (baseurl, token, file_id)
        r = requests.get(delete_url)
        print(' ...[%d]' % (r.status_code,))


def main(token, user, months_ago):
    files_dict = get_file_ids(token, user, months_ago)
    delete_files(files_dict)


if __name__ == '__main__':

    try:
        months_ago = int(sys.argv[1])
    except IndexError, TypeError:
        print('Usage: %s <months-ago>' % sys.argv[0])
        sys.exit()

    main(token, user, months_ago)