c4ec26c4c0
These are - agenda item speakers, - motion submitters and supporters, - assignment candidates, - mediafile uploader and - chat message users but only if the user has respective permissions. Fixed #3002.
68 lines
2.8 KiB
Python
68 lines
2.8 KiB
Python
from django.apps import apps
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from django.contrib.auth.models import Permission
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from django.contrib.contenttypes.models import ContentType
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from django.db.models import Q
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from django.dispatch import Signal
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from ..utils.auth import has_perm
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from ..utils.collection import Collection
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from .models import ChatMessage
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# This signal is send when the migrate command is done. That means it is sent
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# after post_migrate sending and creating all Permission objects. Don't use it
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# for other things than dealing with Permission objects.
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post_permission_creation = Signal()
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# This signal is sent if a permission is changed (e. g. a group gets a new
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# permission). Connected receivers may yield Collections.
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permission_change = Signal()
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# This signal is sent if someone wants to see basic user data. Connected
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# receivers may answer True if the user data is required for the request user
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# (this can be anything that is allowd as argument for utils.auth.has_perm())
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# e. g. as motion submitter or assignment candidate.
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user_data_required = Signal(providing_args=['request_user', 'user_data'])
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def delete_django_app_permissions(sender, **kwargs):
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"""
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Deletes the permissions, Django creates by default. Only required
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for auth, contenttypes and sessions.
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"""
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contenttypes = ContentType.objects.filter(
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Q(app_label='auth') |
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Q(app_label='contenttypes') |
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Q(app_label='sessions'))
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Permission.objects.filter(content_type__in=contenttypes).delete()
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def get_permission_change_data(sender, permissions, **kwargs):
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"""
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Yields all necessary collections if the respective permissions change.
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"""
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core_app = apps.get_app_config(app_label='core')
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for permission in permissions:
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if permission.content_type.app_label == core_app.label:
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if permission.codename == 'can_see_projector':
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yield Collection(core_app.get_model('Projector').get_collection_string())
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elif permission.codename == 'can_manage_projector':
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yield Collection(core_app.get_model('ProjectorMessage').get_collection_string())
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yield Collection(core_app.get_model('Countdown').get_collection_string())
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elif permission.codename == 'can_use_chat':
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yield Collection(core_app.get_model('ChatMessage').get_collection_string())
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def is_user_data_required(sender, request_user, user_data, **kwargs):
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"""
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Returns True if request user can use chat and user_data is required
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to be displayed as chatter.
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"""
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result = False
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if has_perm(request_user, 'core.can_use_chat'):
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for chat_message_collection_element in Collection(ChatMessage.get_collection_string()).element_generator():
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full_data = chat_message_collection_element.get_full_data()
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if user_data['id'] == full_data['user_id']:
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result = True
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break
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return result
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