zulip/contrib_bots/run.py

115 lines
3.1 KiB
Python

from __future__ import print_function
import importlib
import logging
import optparse
import os
import sys
our_dir = os.path.dirname(os.path.abspath(__file__))
# For dev setups, we can find the API in the repo itself.
if os.path.exists(os.path.join(our_dir, '../api/zulip')):
sys.path.append('../api')
from zulip import Client
class RestrictedClient(object):
def __init__(self, client):
# Only expose a subset of our Client's functionality
self.send_message = client.send_message
def get_lib_module(lib_fn):
lib_fn = os.path.abspath(lib_fn)
if os.path.dirname(lib_fn) != os.path.join(our_dir, 'lib'):
print('Sorry, we will only import code from contrib_bots/lib.')
sys.exit(1)
if not lib_fn.endswith('.py'):
print('Please use a .py extension for library files.')
sys.exit(1)
sys.path.append('lib')
base_lib_fn = os.path.basename(os.path.splitext(lib_fn)[0])
module_name = 'lib.' + base_lib_fn
module = importlib.import_module(module_name)
return module
def run_message_handler_for_bot(lib_module, quiet, config_file):
# Make sure you set up your ~/.zuliprc
client = Client(config_file=config_file)
restricted_client = RestrictedClient(client)
message_handler = lib_module.handler_class()
class StateHandler(object):
def __init__(self):
self.state = None
def set_state(self, state):
self.state = state
def get_state(self):
return self.state
state_handler = StateHandler()
if not quiet:
print(message_handler.usage())
def handle_message(message):
logging.info('waiting for next message')
if message_handler.triage_message(message=message):
message_handler.handle_message(
message=message,
client=restricted_client,
state_handler=state_handler
)
logging.info('starting message handling...')
client.call_on_each_message(handle_message)
def run():
usage = '''
python run.py <lib file>
Example: python run.py lib/followup.py
(This program loads bot-related code from the
library code and then runs a message loop,
feeding messages to the library code to handle.)
Please make sure you have a current ~/.zuliprc
file with the credentials you want to use for
this bot.
See lib/readme.md for more context.
'''
parser = optparse.OptionParser(usage=usage)
parser.add_option('--quiet', '-q',
action='store_true',
help='Turn off logging output.')
parser.add_option('--config-file',
action='store',
help='(alternate config file to ~/.zuliprc)')
(options, args) = parser.parse_args()
if len(args) == 0:
print('You must specify a library!')
sys.exit(1)
lib_module = get_lib_module(lib_fn=args[0])
if not options.quiet:
logging.basicConfig(stream=sys.stdout, level=logging.INFO)
run_message_handler_for_bot(
lib_module=lib_module,
config_file=options.config_file,
quiet=options.quiet
)
if __name__ == '__main__':
run()