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streams: Extract access_requested_group_permissions.

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This code will need to be called from both API endpoints for creating
channels soon.
This commit is contained in:
Tim Abbott
2025-07-11 17:46:57 -07:00
parent cb487da45a
commit 07bb806b28
1 changed files with 50 additions and 29 deletions
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79
zerver/views/streams.py
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@@ -112,7 +112,15 @@ from zerver.lib.user_groups import (
from zerver.lib.user_topics import get_users_with_user_topic_visibility_policy
from zerver.lib.users import access_bot_by_id, bulk_access_users_by_email, bulk_access_users_by_id
from zerver.lib.utils import assert_is_not_none
from zerver.models import ChannelFolder, Stream, UserMessage, UserProfile, UserTopic
from zerver.models import (
ChannelFolder,
Realm,
Stream,
UserGroup,
UserMessage,
UserProfile,
UserTopic,
)
from zerver.models.groups import SystemGroups
from zerver.models.streams import StreamTopicsPolicyEnum
from zerver.models.users import get_system_bot
@@ -648,6 +656,42 @@ def you_were_just_subscribed_message(
RETENTION_DEFAULT: str | int = "realm_default"
def access_requested_group_permissions(
user_profile: UserProfile,
realm: Realm,
request_settings_dict: dict[str, Any],
) -> tuple[dict[str, UserGroup], dict[int, UserGroupMembersData]]:
anonymous_group_membership = {}
group_settings_map = {}
system_groups_name_dict = get_role_based_system_groups_dict(realm)
for setting_name, permission_configuration in Stream.stream_permission_group_settings.items():
assert setting_name in request_settings_dict
if request_settings_dict[setting_name] is not None:
setting_request_value = request_settings_dict[setting_name]
setting_value = parse_group_setting_value(
setting_request_value, system_groups_name_dict[SystemGroups.NOBODY]
)
group_settings_map[setting_name] = access_user_group_for_setting(
setting_value,
user_profile,
setting_name=setting_name,
permission_configuration=permission_configuration,
)
if not isinstance(setting_value, int):
anonymous_group_membership[group_settings_map[setting_name].id] = setting_value
else:
group_settings_map[setting_name] = get_stream_permission_default_group(
setting_name, system_groups_name_dict, creator=user_profile
)
if permission_configuration.default_group_name == "stream_creator_or_nobody":
# Default for some settings like "can_administer_channel_group"
# is anonymous group with stream creator.
anonymous_group_membership[group_settings_map[setting_name].id] = (
UserGroupMembersData(direct_subgroups=[], direct_members=[user_profile.id])
)
return group_settings_map, anonymous_group_membership
@transaction.atomic(savepoint=False)
@require_non_guest_user
@typed_endpoint
@@ -694,35 +738,12 @@ def add_subscriptions_backend(
if principals is None:
principals = []
anonymous_group_membership = {}
group_settings_map = {}
request_settings_dict = locals()
system_groups_name_dict = get_role_based_system_groups_dict(realm)
for setting_name, permission_configuration in Stream.stream_permission_group_settings.items():
assert setting_name in request_settings_dict
if request_settings_dict[setting_name] is not None:
setting_request_value = request_settings_dict[setting_name]
setting_value = parse_group_setting_value(
setting_request_value, system_groups_name_dict[SystemGroups.NOBODY]
)
group_settings_map[setting_name] = access_user_group_for_setting(
setting_value,
user_profile,
setting_name=setting_name,
permission_configuration=permission_configuration,
)
if not isinstance(setting_value, int):
anonymous_group_membership[group_settings_map[setting_name].id] = setting_value
else:
group_settings_map[setting_name] = get_stream_permission_default_group(
setting_name, system_groups_name_dict, creator=user_profile
)
if permission_configuration.default_group_name == "stream_creator_or_nobody":
# Default for some settings like "can_administer_channel_group"
# is anonymous group with stream creator.
anonymous_group_membership[group_settings_map[setting_name].id] = (
UserGroupMembersData(direct_subgroups=[], direct_members=[user_profile.id])
)
group_settings_map, anonymous_group_membership = access_requested_group_permissions(
user_profile,
realm,
request_settings_dict,
)
folder: ChannelFolder | None = None
if folder_id is not None: