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slack-emojinator/export.py

103 lines
3.2 KiB
Python
Executable File

#!/usr/bin/env python
# Export emoji in a Slack team as files
# https://github.com/smashwilson/slack-emojinator
import requests
import lxml.html
import argparse
import os
import shutil
import asyncio, aiohttp
import logging
from upload import _session
logging.basicConfig(level=logging.INFO, format="%(asctime)-15s\t%(message)s")
logger = logging.getLogger(__name__)
URL = "https://{team_name}.slack.com/customize/emoji"
def _argparse():
parser = argparse.ArgumentParser(
description='Bulk import of emoji from a slack team'
)
parser.add_argument(
'directory',
help='Where do we store downloaded emoji?'
)
parser.add_argument(
'--team-name', '-t',
default=os.getenv('SLACK_TEAM'),
help='Defaults to the $SLACK_TEAM environment variable.'
)
parser.add_argument(
'--cookie', '-c',
default=os.getenv('SLACK_COOKIE'),
help='Defaults to the $SLACK_COOKIE environment variable.'
)
parser.add_argument(
'--concurrent-requests', '-r',
default=os.getenv('CONCURRENT_REQUESTS', 200),
help='Maximum concurrent requests. Defaults to the $CONCURRENT_REQUESTS environment variable or 200.'
)
args = parser.parse_args()
return args
def concurrent_http_get(num_chunks: int, session: aiohttp.ClientSession):
semaphore = asyncio.Semaphore(num_chunks)
async def http_get(url, name):
nonlocal semaphore
with (await semaphore):
response = await session.get(url)
body = await response.content.read()
await response.wait_for_close()
return body, name, url
return http_get
def handle_response(response, name: str, url: str, directory: str):
logger.info(f"Got {name.ljust(15)} {url}")
ext = url.split(".")[-1]
with open(os.path.join(directory, f"{name}.{ext}"), 'wb') as out:
out.write(response)
def _async_session(auth_cookie):
return aiohttp.ClientSession(headers={"Cookie": auth_cookie})
async def main():
args = _argparse()
if not os.path.exists(args.directory):
os.makedirs(args.directory)
async with _async_session(args.cookie) as session:
endpoint = URL.format(team_name=args.team_name)
logger.info(f"Getting {endpoint}")
resp = await session.get(endpoint)
async with resp:
if resp.status != 200:
logger.error(f"Failed to retrieve emoji list ({resp.status})")
return
text = await resp.text()
tree = lxml.html.fromstring(text)
urls = tree.xpath(r'//td[@headers="custom_emoji_image"]/span/@data-original')
names = [u.split('/')[-2] for u in urls]
logger.info(f"Parsed {len(names)} emojis")
assert len(names) > 0
http_get = concurrent_http_get(args.concurrent_requests, session)
tasks = [http_get(emoji_url, emoji_name) for emoji_name, emoji_url in zip(names, urls) if "alias" not in emoji_url]
for future in asyncio.as_completed(tasks):
data, name, url = await future
handle_response(data, name, url, args.directory)
if __name__ == '__main__':
loop = asyncio.get_event_loop()
loop.run_until_complete(main())