How to deal with: "Your file was uploaded — it’s safe and sound in Slack. Unfortunately your workspace doesn’t have any storage space left."

download_and_delete_slack_files.py

#!/usr/bin/env python2.7

import traceback
import requests
import shutil
import time
import json
import os
import re

# Replace with your Slack Legacy Web API token.
# Get yours here: https://api.slack.com/custom-integrations/legacy-tokens
token = '...'

#Delete files older than this:
ts_to = int(time.time()) - 30 * 24 * 60 * 60

def list_files():
  params = {
    'token': token,
    'ts_to': ts_to,
    'count': 1000
  }
  uri = 'https://slack.com/api/files.list'
  response = requests.get(uri, params=params)
  return json.loads(response.text)['files']

def delete_file(file_id):
  count = 0
  params = {
    'token': token,
    'file': file_id,
  }
  uri = 'https://slack.com/api/files.delete'
  print "Deleting {}".format(file_id)
  response = requests.get(uri, params=params)
  print file_id, json.loads(response.text)['ok']

def download_file(uri, pathname):
  resp = requests.get(uri, stream=True, headers={
    "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.27; rv:99.1) Gecko/11101011 Firefox/99.1",
    "Authorization": "Bearer {}".format(token)
  })
  if resp.status_code == 200:
    length = resp.headers["Content-Length"]
    with open(pathname, 'wb') as f:
      resp.raw.decode_content = True
      shutil.copyfileobj(resp.raw, f)
      return int(length)

def download_and_delete_files(dest_dir):
  files = list_files()
  for i, f in enumerate(files):
    try:
      print i, f["size"], f["url_private_download"]
      fn = re.sub(r"\W+", "_", f["title"].lower())+"--"+os.path.basename(f["url_private_download"])
      path = os.path.join(dest_dir, fn)
      size = download_file(f["url_private_download"], path)
      if os.stat(path).st_size == size:
        delete_file(f["id"])
    except Exception as e:
      print "Hmm lost {} due to {}\n{}".format(f["id"], str(e), ''.join(traceback.format_list(e)))


if __name__ == '__main__':
  download_and_delete_files(os.getcwd())