179 lines
6.8 KiB
Python
179 lines
6.8 KiB
Python
from __future__ import print_function
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import os
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import os.path
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import pickle
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from datetime import datetime, timedelta
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from google.auth.transport.requests import Request
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from google_auth_oauthlib.flow import InstalledAppFlow
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from googleapiclient.discovery import build
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#
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# Google calendar notifications
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#
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# Note: Provide a token.pickle file for the service.
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# It's created on first run (run from console!) and
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# can be copied to another computer.
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#
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class MatrixModule:
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def matrix_start(self, bot):
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self.bot = bot
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self.SCOPES = ['https://www.googleapis.com/auth/calendar.readonly']
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self.credentials_file = "credentials.json"
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self.service = None
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self.calendar_rooms = dict() # Contains room_id -> [calid, calid] ..
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creds = None
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if not os.path.exists(self.credentials_file) or os.path.getsize(self.credentials_file) == 0:
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return # No-op if not set up
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if os.path.exists('token.pickle'):
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with open('token.pickle', 'rb') as token:
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creds = pickle.load(token)
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print('Loaded existing pickle file')
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# If there are no (valid) credentials available, let the user log in.
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if not creds or not creds.valid:
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print('No credentials or credentials not valid!')
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if creds and creds.expired and creds.refresh_token:
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creds.refresh(Request())
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else:
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flow = InstalledAppFlow.from_client_secrets_file(
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self.credentials_file, self.SCOPES)
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# urn:ietf:wg:oauth:2.0:oob
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creds = flow.run_local_server(port=0)
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# Save the credentials for the next run
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with open('token.pickle', 'wb') as token:
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pickle.dump(creds, token)
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print('Pickle saved')
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self.service = build('calendar', 'v3', credentials=creds)
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try:
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calendar_list = self.service.calendarList().list().execute()[
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'items']
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print(
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f'Google calendar set up successfully with access to {len(calendar_list)} calendars:\n')
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for calendar in calendar_list:
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print(calendar['summary'] + ' - ' + calendar['id'])
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except Exception:
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print('Getting calendar list failed!')
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async def matrix_message(self, bot, room, event):
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if not self.service:
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await bot.send_text(room, 'Google calendar not set up for this bot.')
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return
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args = event.body.split()
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events = []
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calendars = self.calendar_rooms.get(room.room_id) or []
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if len(args) == 2:
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if args[1] == 'today':
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for calid in calendars:
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print('Listing events in cal', calid)
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events = events + self.list_today(calid)
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if args[1] == 'list':
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await bot.send_text(room, 'Calendars in this room: ' + str(self.calendar_rooms.get(room.room_id)))
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return
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elif len(args) == 3:
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if args[1] == 'add':
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bot.must_be_admin(room, event)
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calid = args[2]
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print(f'Adding calendar {calid} to room id {room.room_id}')
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if self.calendar_rooms.get(room.room_id):
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if calid not in self.calendar_rooms[room.room_id]:
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self.calendar_rooms[room.room_id].append(calid)
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else:
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await bot.send_text(room, 'This google calendar already added in this room!')
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return
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else:
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self.calendar_rooms[room.room_id] = [calid]
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print(
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f'Calendars now for this room {self.calendar_rooms.get(room.room_id)}')
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bot.save_settings()
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await bot.send_text(room, 'Added new google calendar to this room')
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return
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if args[1] == 'del':
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bot.must_be_admin(room, event)
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calid = args[2]
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print(f'Removing calendar {calid} from room id {room.room_id}')
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if self.calendar_rooms.get(room.room_id):
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self.calendar_rooms[room.room_id].remove(calid)
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print(
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f'Calendars now for this room {self.calendar_rooms.get(room.room_id)}')
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bot.save_settings()
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await bot.send_text(room, 'Removed google calendar from this room')
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return
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else:
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for calid in calendars:
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print('Listing events in cal', calid)
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events = events + self.list_upcoming(calid)
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if len(events) > 0:
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print(f'Found {len(events)} events')
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await self.send_events(bot, events, room)
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else:
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print(f'No events found')
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await bot.send_text(room, 'No events found, try again later :)')
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async def send_events(self, bot, events, room):
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for event in events:
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start = event['start'].get('dateTime', event['start'].get('date'))
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await bot.send_html(room, f'{self.parse_date(start)} <a href="{event["htmlLink"]}">{event["summary"]}</a>', f'{self.parse_date(start)} {event["summary"]}')
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def list_upcoming(self, calid):
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startTime = datetime.utcnow()
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now = startTime.isoformat() + 'Z'
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events_result = self.service.events().list(calendarId=calid, timeMin=now,
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maxResults=10, singleEvents=True,
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orderBy='startTime').execute()
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events = events_result.get('items', [])
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return events
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def list_today(self, calid):
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startTime = datetime.utcnow()
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startTime = startTime.replace(
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hour=0, minute=0, second=0, microsecond=0)
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endTime = startTime + timedelta(hours=24)
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now = startTime.isoformat() + 'Z'
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end = endTime.isoformat() + 'Z'
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print('Looking for events between', now, end)
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events_result = self.service.events().list(calendarId=calid, timeMin=now,
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timeMax=end, maxResults=10, singleEvents=True,
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orderBy='startTime').execute()
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return events_result.get('items', [])
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def help(self):
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return('Google calendar. Lists 10 next events by default. today = list today\'s events.')
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def get_settings(self):
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return {'calendar_rooms': self.calendar_rooms}
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def set_settings(self, data):
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if data.get('calendar_rooms'):
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self.calendar_rooms = data['calendar_rooms']
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def parse_date(self, start):
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try:
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dt = datetime.strptime(start, '%Y-%m-%dT%H:%M:%S%z')
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return dt.strftime("%d.%m %H:%M")
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except ValueError:
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dt = datetime.strptime(start, '%Y-%m-%d')
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return dt.strftime("%d.%m")
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