mirror of https://gitlab.com/bashrc2/epicyon
479 lines
18 KiB
Python
479 lines
18 KiB
Python
__filename__ = "happening.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.2.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@libreserver.org"
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__status__ = "Production"
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__module_group__ = "Core"
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import os
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from uuid import UUID
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from datetime import datetime
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from datetime import timedelta
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from utils import is_public_post
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from utils import load_json
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from utils import save_json
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from utils import locate_post
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from utils import has_object_dict
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from utils import acct_dir
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def _valid_uuid(test_uuid: str, version: int):
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"""Check if uuid_to_test is a valid UUID
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"""
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try:
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uuid_obj = UUID(test_uuid, version=version)
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except ValueError:
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return False
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return str(uuid_obj) == test_uuid
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def _remove_event_from_timeline(event_id: str,
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tl_events_filename: str) -> None:
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"""Removes the given event Id from the timeline
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"""
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if event_id + '\n' not in open(tl_events_filename).read():
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return
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with open(tl_events_filename, 'r') as fp_tl:
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events_timeline = fp_tl.read().replace(event_id + '\n', '')
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try:
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with open(tl_events_filename, 'w+') as fp2:
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fp2.write(events_timeline)
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except OSError:
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print('EX: ERROR: unable to save events timeline')
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def save_event_post(base_dir: str, handle: str, post_id: str,
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event_json: {}) -> bool:
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"""Saves an event to the calendar and/or the events timeline
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If an event has extra fields, as per Mobilizon,
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Then it is saved as a separate entity and added to the
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events timeline
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See https://framagit.org/framasoft/mobilizon/-/blob/
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master/lib/federation/activity_stream/converter/event.ex
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"""
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if not os.path.isdir(base_dir + '/accounts/' + handle):
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print('WARN: Account does not exist at ' +
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base_dir + '/accounts/' + handle)
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calendar_path = base_dir + '/accounts/' + handle + '/calendar'
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if not os.path.isdir(calendar_path):
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os.mkdir(calendar_path)
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# get the year, month and day from the event
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event_time = datetime.strptime(event_json['startTime'],
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"%Y-%m-%dT%H:%M:%S%z")
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event_year = int(event_time.strftime("%Y"))
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if event_year < 2020 or event_year >= 2100:
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return False
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event_month_number = int(event_time.strftime("%m"))
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if event_month_number < 1 or event_month_number > 12:
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return False
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event_day_of_month = int(event_time.strftime("%d"))
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if event_day_of_month < 1 or event_day_of_month > 31:
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return False
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if event_json.get('name') and event_json.get('actor') and \
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event_json.get('uuid') and event_json.get('content'):
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if not _valid_uuid(event_json['uuid'], 4):
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return False
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print('Mobilizon type event')
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# if this is a full description of an event then save it
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# as a separate json file
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events_path = base_dir + '/accounts/' + handle + '/events'
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if not os.path.isdir(events_path):
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os.mkdir(events_path)
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events_year_path = \
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base_dir + '/accounts/' + handle + '/events/' + str(event_year)
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if not os.path.isdir(events_year_path):
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os.mkdir(events_year_path)
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event_id = str(event_year) + '-' + event_time.strftime("%m") + '-' + \
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event_time.strftime("%d") + '_' + event_json['uuid']
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event_filename = events_year_path + '/' + event_id + '.json'
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save_json(event_json, event_filename)
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# save to the events timeline
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tl_events_filename = base_dir + '/accounts/' + handle + '/events.txt'
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if os.path.isfile(tl_events_filename):
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_remove_event_from_timeline(event_id, tl_events_filename)
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try:
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with open(tl_events_filename, 'r+') as tl_events_file:
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content = tl_events_file.read()
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if event_id + '\n' not in content:
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tl_events_file.seek(0, 0)
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tl_events_file.write(event_id + '\n' + content)
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except OSError as ex:
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print('EX: Failed to write entry to events file ' +
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tl_events_filename + ' ' + str(ex))
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return False
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else:
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try:
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with open(tl_events_filename, 'w+') as tl_events_file:
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tl_events_file.write(event_id + '\n')
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except OSError:
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print('EX: unable to write ' + tl_events_filename)
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# create a directory for the calendar year
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if not os.path.isdir(calendar_path + '/' + str(event_year)):
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os.mkdir(calendar_path + '/' + str(event_year))
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# calendar month file containing event post Ids
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calendar_filename = calendar_path + '/' + str(event_year) + \
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'/' + str(event_month_number) + '.txt'
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# Does this event post already exist within the calendar month?
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if os.path.isfile(calendar_filename):
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if post_id in open(calendar_filename).read():
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# Event post already exists
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return False
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# append the post Id to the file for the calendar month
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try:
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with open(calendar_filename, 'a+') as calendar_file:
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calendar_file.write(post_id + '\n')
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except OSError:
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print('EX: unable to append ' + calendar_filename)
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# create a file which will trigger a notification that
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# a new event has been added
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cal_notify_filename = base_dir + '/accounts/' + handle + '/.newCalendar'
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notify_str = \
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'/calendar?year=' + str(event_year) + '?month=' + \
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str(event_month_number) + '?day=' + str(event_day_of_month)
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try:
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with open(cal_notify_filename, 'w+') as cal_file:
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cal_file.write(notify_str)
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except OSError:
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print('EX: unable to write ' + cal_notify_filename)
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return False
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return True
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def _is_happening_event(tag: {}) -> bool:
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"""Is this tag an Event or Place ActivityStreams type?
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"""
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if not tag.get('type'):
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return False
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if tag['type'] != 'Event' and tag['type'] != 'Place':
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return False
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return True
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def _is_happening_post(post_json_object: {}) -> bool:
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"""Is this a post with tags?
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"""
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if not post_json_object:
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return False
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if not has_object_dict(post_json_object):
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return False
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if not post_json_object['object'].get('tag'):
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return False
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return True
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def get_todays_events(base_dir: str, nickname: str, domain: str,
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currYear: int, currMonthNumber: int,
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currDayOfMonth: int) -> {}:
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"""Retrieves calendar events for today
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Returns a dictionary of lists containing Event and Place activities
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"""
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now = datetime.now()
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if not currYear:
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year = now.year
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else:
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year = currYear
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if not currMonthNumber:
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month_number = now.month
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else:
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month_number = currMonthNumber
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if not currDayOfMonth:
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day_number = now.day
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else:
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day_number = currDayOfMonth
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calendar_filename = \
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acct_dir(base_dir, nickname, domain) + \
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'/calendar/' + str(year) + '/' + str(month_number) + '.txt'
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events = {}
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if not os.path.isfile(calendar_filename):
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return events
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calendar_post_ids = []
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recreate_events_file = False
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with open(calendar_filename, 'r') as events_file:
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for post_id in events_file:
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post_id = post_id.replace('\n', '').replace('\r', '')
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post_filename = locate_post(base_dir, nickname, domain, post_id)
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if not post_filename:
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recreate_events_file = True
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continue
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post_json_object = load_json(post_filename)
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if not _is_happening_post(post_json_object):
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continue
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public_event = is_public_post(post_json_object)
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post_event = []
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day_of_month = None
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for tag in post_json_object['object']['tag']:
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if not _is_happening_event(tag):
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continue
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# this tag is an event or a place
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if tag['type'] == 'Event':
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# tag is an event
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if not tag.get('startTime'):
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continue
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event_time = \
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datetime.strptime(tag['startTime'],
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"%Y-%m-%dT%H:%M:%S%z")
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if int(event_time.strftime("%Y")) == year and \
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int(event_time.strftime("%m")) == month_number and \
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int(event_time.strftime("%d")) == day_number:
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day_of_month = str(int(event_time.strftime("%d")))
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if '#statuses#' in post_id:
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# link to the id so that the event can be
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# easily deleted
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tag['post_id'] = post_id.split('#statuses#')[1]
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tag['sender'] = post_id.split('#statuses#')[0]
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tag['sender'] = tag['sender'].replace('#', '/')
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tag['public'] = public_event
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post_event.append(tag)
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else:
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# tag is a place
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post_event.append(tag)
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if post_event and day_of_month:
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calendar_post_ids.append(post_id)
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if not events.get(day_of_month):
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events[day_of_month] = []
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events[day_of_month].append(post_event)
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# if some posts have been deleted then regenerate the calendar file
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if recreate_events_file:
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try:
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with open(calendar_filename, 'w+') as calendar_file:
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for post_id in calendar_post_ids:
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calendar_file.write(post_id + '\n')
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except OSError:
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print('EX: unable to write ' + calendar_filename)
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return events
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def day_events_check(base_dir: str, nickname: str, domain: str,
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currDate) -> bool:
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"""Are there calendar events for the given date?
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"""
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year = currDate.year
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month_number = currDate.month
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day_number = currDate.day
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calendar_filename = \
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acct_dir(base_dir, nickname, domain) + \
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'/calendar/' + str(year) + '/' + str(month_number) + '.txt'
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if not os.path.isfile(calendar_filename):
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return False
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events_exist = False
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with open(calendar_filename, 'r') as events_file:
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for post_id in events_file:
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post_id = post_id.replace('\n', '').replace('\r', '')
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post_filename = locate_post(base_dir, nickname, domain, post_id)
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if not post_filename:
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continue
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post_json_object = load_json(post_filename)
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if not _is_happening_post(post_json_object):
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continue
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for tag in post_json_object['object']['tag']:
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if not _is_happening_event(tag):
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continue
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# this tag is an event or a place
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if tag['type'] != 'Event':
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continue
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# tag is an event
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if not tag.get('startTime'):
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continue
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event_time = \
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datetime.strptime(tag['startTime'],
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"%Y-%m-%dT%H:%M:%S%z")
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if int(event_time.strftime("%d")) != day_number:
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continue
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if int(event_time.strftime("%m")) != month_number:
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continue
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if int(event_time.strftime("%Y")) != year:
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continue
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events_exist = True
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break
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return events_exist
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def get_this_weeks_events(base_dir: str, nickname: str, domain: str) -> {}:
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"""Retrieves calendar events for this week
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Returns a dictionary indexed by day number of lists containing
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Event and Place activities
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Note: currently not used but could be with a weekly calendar screen
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"""
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now = datetime.now()
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end_of_week = now + timedelta(7)
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year = now.year
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month_number = now.month
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calendar_filename = \
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acct_dir(base_dir, nickname, domain) + \
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'/calendar/' + str(year) + '/' + str(month_number) + '.txt'
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events = {}
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if not os.path.isfile(calendar_filename):
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return events
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calendar_post_ids = []
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recreate_events_file = False
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with open(calendar_filename, 'r') as events_file:
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for post_id in events_file:
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post_id = post_id.replace('\n', '').replace('\r', '')
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post_filename = locate_post(base_dir, nickname, domain, post_id)
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if not post_filename:
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recreate_events_file = True
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continue
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post_json_object = load_json(post_filename)
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if not _is_happening_post(post_json_object):
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continue
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post_event = []
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week_day_index = None
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for tag in post_json_object['object']['tag']:
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if not _is_happening_event(tag):
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continue
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# this tag is an event or a place
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if tag['type'] == 'Event':
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# tag is an event
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if not tag.get('startTime'):
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continue
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event_time = \
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datetime.strptime(tag['startTime'],
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"%Y-%m-%dT%H:%M:%S%z")
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if event_time >= now and event_time <= end_of_week:
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week_day_index = (event_time - now).days()
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post_event.append(tag)
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else:
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# tag is a place
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post_event.append(tag)
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if post_event and week_day_index:
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calendar_post_ids.append(post_id)
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if not events.get(week_day_index):
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events[week_day_index] = []
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events[week_day_index].append(post_event)
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# if some posts have been deleted then regenerate the calendar file
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if recreate_events_file:
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try:
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with open(calendar_filename, 'w+') as calendar_file:
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for post_id in calendar_post_ids:
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calendar_file.write(post_id + '\n')
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except OSError:
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print('EX: unable to write ' + calendar_filename)
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return events
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def get_calendar_events(base_dir: str, nickname: str, domain: str,
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year: int, month_number: int) -> {}:
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"""Retrieves calendar events
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Returns a dictionary indexed by day number of lists containing
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Event and Place activities
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"""
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calendar_filename = \
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acct_dir(base_dir, nickname, domain) + \
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'/calendar/' + str(year) + '/' + str(month_number) + '.txt'
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events = {}
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if not os.path.isfile(calendar_filename):
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return events
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calendar_post_ids = []
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recreate_events_file = False
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with open(calendar_filename, 'r') as events_file:
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for post_id in events_file:
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post_id = post_id.replace('\n', '').replace('\r', '')
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post_filename = locate_post(base_dir, nickname, domain, post_id)
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if not post_filename:
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recreate_events_file = True
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continue
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post_json_object = load_json(post_filename)
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if not _is_happening_post(post_json_object):
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continue
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post_event = []
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day_of_month = None
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for tag in post_json_object['object']['tag']:
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if not _is_happening_event(tag):
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continue
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# this tag is an event or a place
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if tag['type'] == 'Event':
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# tag is an event
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if not tag.get('startTime'):
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continue
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event_time = \
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datetime.strptime(tag['startTime'],
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"%Y-%m-%dT%H:%M:%S%z")
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if int(event_time.strftime("%Y")) == year and \
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int(event_time.strftime("%m")) == month_number:
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day_of_month = str(int(event_time.strftime("%d")))
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post_event.append(tag)
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else:
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# tag is a place
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post_event.append(tag)
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if post_event and day_of_month:
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calendar_post_ids.append(post_id)
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if not events.get(day_of_month):
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events[day_of_month] = []
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events[day_of_month].append(post_event)
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# if some posts have been deleted then regenerate the calendar file
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if recreate_events_file:
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try:
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with open(calendar_filename, 'w+') as calendar_file:
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for post_id in calendar_post_ids:
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calendar_file.write(post_id + '\n')
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except OSError:
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print('EX: unable to write ' + calendar_filename)
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return events
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def remove_calendar_event(base_dir: str, nickname: str, domain: str,
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year: int, month_number: int,
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message_id: str) -> None:
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"""Removes a calendar event
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"""
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calendar_filename = \
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acct_dir(base_dir, nickname, domain) + \
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'/calendar/' + str(year) + '/' + str(month_number) + '.txt'
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if not os.path.isfile(calendar_filename):
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return
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if '/' in message_id:
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message_id = message_id.replace('/', '#')
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if message_id not in open(calendar_filename).read():
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return
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lines = None
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with open(calendar_filename, 'r') as fp_cal:
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lines = fp_cal.readlines()
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if not lines:
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return
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try:
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with open(calendar_filename, 'w+') as fp_cal:
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for line in lines:
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if message_id not in line:
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fp_cal.write(line)
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except OSError:
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print('EX: unable to write ' + calendar_filename)
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