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73 lines
2.5 KiB
Python
73 lines
2.5 KiB
Python
from flask import request
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from flask_login import current_user
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from flask_socketio import join_room, leave_room
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from . import socketio
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from .decorators import socketio_login_required
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from .models import User
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###############################################################################
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# Socket.IO event handlers #
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###############################################################################
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'''
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' A list containing session ids of connected Socket.IO sessions, to keep track
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' of all connected sessions, which can be used to determine the runtimes of
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' associated background tasks.
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'''
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socketio_sessions = []
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@socketio.on('connect')
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@socketio_login_required
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def socketio_connect():
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'''
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' The Socket.IO module creates a session id (sid) for each request.
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' On connect the sid is saved in the connected sessions list.
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'''
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socketio_sessions.append(request.sid)
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@socketio.on('disconnect')
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def socketio_disconnect():
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'''
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' On disconnect the session id gets removed from the connected sessions
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' list.
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'''
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socketio_sessions.remove(request.sid)
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@socketio.on('start_user_session')
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@socketio_login_required
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def socketio_start_user_session(user_id):
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user = User.query.get(user_id)
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if user is None:
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response = {'code': 404, 'msg': 'Not found'}
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socketio.emit('start_user_session', response, room=request.sid)
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elif not (user == current_user or current_user.is_administrator):
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response = {'code': 403, 'msg': 'Forbidden'}
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socketio.emit('start_user_session', response, room=request.sid)
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else:
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response = {'code': 200, 'msg': 'OK'}
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socketio.emit('start_user_session', response, room=request.sid)
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socketio.emit('user_{}_init'.format(user.id), user.to_dict(),
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room=request.sid)
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room = 'user_{}'.format(user.id)
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join_room(room)
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@socketio.on('stop_user_session')
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@socketio_login_required
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def socketio_stop_user_session(user_id):
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user = User.query.get(user_id)
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if user is None:
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response = {'code': 404, 'msg': 'Not found'}
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socketio.emit('stop_user_session', response, room=request.sid)
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elif not (user == current_user or current_user.is_administrator):
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response = {'code': 403, 'msg': 'Forbidden'}
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socketio.emit('stop_user_session', response, room=request.sid)
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else:
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response = {'code': 200, 'msg': 'OK'}
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socketio.emit('stop_user_session', response, room=request.sid)
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room = 'user_{}'.format(user.id)
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leave_room(room)
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