slack-bulkinviter-one-user-all-non-private-channels.py

#! /usr/bin/env python3
import sys
from slacker import Slacker, Error

# Get channel name from command line
try:
    user_name = sys.argv[1].strip('\'"')
    assert user_name
except:
    print("Please specify a user name")
    sys.exit(1)

# Load API key from apikey.txt
try:
    with open('apikey.txt') as f:
        api_key = f.read().strip()
        assert api_key
except IOError:
    print("Cannot find apikey.txt, or other reading error")
    sys.exit(1)
except AssertionError:
    print("Empty API key")
    sys.exit(1)
else:
    slack = Slacker(api_key)

# Get channel id from name
response = slack.channels.list()
channels = [d for d in response.body['channels'] if (d['is_private'] == False and d['is_archived'] == False)]
if not len(channels):
    print("Cannot find any non private channel")
    sys.exit(1)

# Get users list
response = slack.users.list()
users = [(u['id'], u['name']) for u in response.body['members'] if u['name'] == user_name]
assert len(users) == 1
user_name = users[0][1]
user_id = users[0][0]
# Invite the  user to all non private channels
for channel in channels:
    print("Inviting {} to {}".format(user_name, channel['name']))
    try:
        slack.channels.invite(channel['id'], user_id)
    except Error as e:
        code = e.args[0]
        if code == "already_in_channel":
            print("{} is already in the channel".format(user_name))
        elif code in ('cant_invite_self', 'cant_invite', 'user_is_ultra_restricted'):
            print("Skipping user {} ('{}')".format(user_name, code))
        else:
            raise