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Source code for galaxy.managers.quotas
"""
Manager and Serializers for Quotas.
For more information about quotas: https://galaxyproject.org/admin/disk-quotas/
"""
import logging
from typing import (
cast,
Optional,
Tuple,
Union,
)
from sqlalchemy import select
from galaxy import (
model,
util,
)
from galaxy.exceptions import ActionInputError
from galaxy.managers import base
from galaxy.model import (
Group,
Quota,
User,
)
from galaxy.model.base import transaction
from galaxy.quota import DatabaseQuotaAgent
from galaxy.quota._schema import (
CreateQuotaParams,
DefaultQuotaValues,
QuotaOperation,
)
from galaxy.structured_app import StructuredApp
log = logging.getLogger(__name__)
[docs]class QuotaManager:
"""Interface/service object to interact with Quotas."""
@property
def sa_session(self):
return self.app.model.context
@property
def quota_agent(self) -> DatabaseQuotaAgent:
return cast(DatabaseQuotaAgent, self.app.quota_agent)
[docs] def create_quota(self, payload: dict, decode_id=None) -> Tuple[model.Quota, str]:
params = CreateQuotaParams.parse_obj(payload)
create_amount = self._parse_amount(params.amount)
stmt = select(Quota).where(Quota.name == params.name).limit(1)
if self.sa_session.scalars(stmt).first():
raise ActionInputError(
"Quota names must be unique and a quota with that name already exists, please choose another name."
)
elif create_amount is False:
raise ActionInputError("Unable to parse the provided amount.")
elif params.operation not in model.Quota.valid_operations:
raise ActionInputError("Enter a valid operation.")
elif params.default != DefaultQuotaValues.NO and params.operation != QuotaOperation.EXACT:
raise ActionInputError("Operation for a default quota must be '='.")
elif create_amount is None and params.operation != QuotaOperation.EXACT:
raise ActionInputError("Operation for an unlimited quota must be '='.")
# Create the quota
quota = model.Quota(
name=params.name,
description=params.description,
amount=create_amount,
operation=params.operation,
quota_source_label=params.quota_source_label,
)
self.sa_session.add(quota)
# If this is a default quota, create the DefaultQuotaAssociation
if params.default != DefaultQuotaValues.NO:
self.quota_agent.set_default_quota(params.default, quota)
message = f"Default quota '{quota.name}' has been created."
else:
# Create the UserQuotaAssociations
in_users = [
self.sa_session.get(User, decode_id(x) if decode_id else x) for x in util.listify(params.in_users)
]
in_groups = [
self.sa_session.get(Group, decode_id(x) if decode_id else x) for x in util.listify(params.in_groups)
]
if None in in_users:
raise ActionInputError("One or more invalid user id has been provided.")
for user in in_users:
uqa = model.UserQuotaAssociation(user, quota)
self.sa_session.add(uqa)
# Create the GroupQuotaAssociations
if None in in_groups:
raise ActionInputError("One or more invalid group id has been provided.")
for group in in_groups:
gqa = model.GroupQuotaAssociation(group, quota)
self.sa_session.add(gqa)
message = f"Quota '{quota.name}' has been created with {len(in_users)} associated users and {len(in_groups)} associated groups."
with transaction(self.sa_session):
self.sa_session.commit()
return quota, message
def _parse_amount(self, amount: str) -> Optional[Union[int, bool]]:
if amount.lower() in ("unlimited", "none", "no limit"):
return None
try:
return util.size_to_bytes(amount)
except ValueError:
return False
[docs] def rename_quota(self, quota, params) -> str:
stmt = select(Quota).where(Quota.name == params.name).limit(1)
if not params.name:
raise ActionInputError("Enter a valid name.")
elif params.name != quota.name and self.sa_session.scalars(stmt).first():
raise ActionInputError("A quota with that name already exists.")
else:
old_name = quota.name
quota.name = params.name
if params.description:
quota.description = params.description
self.sa_session.add(quota)
with transaction(self.sa_session):
self.sa_session.commit()
message = f"Quota '{old_name}' has been renamed to '{params.name}'."
return message
[docs] def manage_users_and_groups_for_quota(self, quota, params, decode_id=None) -> str:
if quota.default:
raise ActionInputError("Default quotas cannot be associated with specific users and groups.")
else:
in_users = [
self.sa_session.get(model.User, decode_id(x) if decode_id else x) for x in util.listify(params.in_users)
]
if None in in_users:
raise ActionInputError("One or more invalid user id has been provided.")
in_groups = [
self.sa_session.get(model.Group, decode_id(x) if decode_id else x)
for x in util.listify(params.in_groups)
]
if None in in_groups:
raise ActionInputError("One or more invalid group id has been provided.")
self.quota_agent.set_entity_quota_associations(quotas=[quota], users=in_users, groups=in_groups)
self.sa_session.refresh(quota)
message = f"Quota '{quota.name}' has been updated with {len(in_users)} associated users and {len(in_groups)} associated groups."
return message
[docs] def edit_quota(self, quota, params) -> str:
if params.amount.lower() in ("unlimited", "none", "no limit"):
new_amount = None
else:
try:
new_amount = util.size_to_bytes(params.amount)
except (AssertionError, ValueError):
new_amount = False
if not params.amount:
raise ActionInputError("Enter a valid amount.")
elif new_amount is False:
raise ActionInputError("Unable to parse the provided amount.")
elif params.operation not in model.Quota.valid_operations:
raise ActionInputError("Enter a valid operation.")
else:
quota.amount = new_amount
quota.operation = params.operation
self.sa_session.add(quota)
with transaction(self.sa_session):
self.sa_session.commit()
message = f"Quota '{quota.name}' is now '{quota.operation}{quota.display_amount}'."
return message
[docs] def set_quota_default(self, quota, params) -> str:
if params.default != "no" and params.default not in model.DefaultQuotaAssociation.types.__members__.values():
raise ActionInputError("Enter a valid default type.")
else:
if params.default != "no":
self.quota_agent.set_default_quota(params.default, quota)
message = f"Quota '{quota.name}' is now the default for {params.default} users."
else:
if quota.default:
message = f"Quota '{quota.name}' is no longer the default for {quota.default[0].type} users."
for dqa in quota.default:
self.sa_session.delete(dqa)
with transaction(self.sa_session):
self.sa_session.commit()
else:
message = f"Quota '{quota.name}' is not a default."
return message
[docs] def unset_quota_default(self, quota, params=None) -> str:
if not quota.default:
raise ActionInputError(f"Quota '{quota.name}' is not a default.")
else:
message = f"Quota '{quota.name}' is no longer the default for {quota.default[0].type} users."
for dqa in quota.default:
self.sa_session.delete(dqa)
with transaction(self.sa_session):
self.sa_session.commit()
return message
[docs] def delete_quota(self, quota, params=None) -> str:
quotas = util.listify(quota)
names = []
for q in quotas:
if q.default:
names.append(q.name)
if len(names) == 1:
raise ActionInputError(f"Quota '{names[0]}' is a default, please unset it as a default before deleting it.")
elif len(names) > 1:
raise ActionInputError(
f"Quotas are defaults, please unset them as defaults before deleting them: {', '.join(names)}"
)
message = f"Deleted {len(quotas)} quotas: "
for q in quotas:
q.deleted = True
self.sa_session.add(q)
names.append(q.name)
with transaction(self.sa_session):
self.sa_session.commit()
message += ", ".join(names)
return message
[docs] def undelete_quota(self, quota, params=None) -> str:
quotas = util.listify(quota)
names = []
for q in quotas:
if not q.deleted:
names.append(q.name)
if len(names) == 1:
raise ActionInputError(f"Quota '{names[0]}' has not been deleted, so it cannot be undeleted.")
elif len(names) > 1:
raise ActionInputError(f"Quotas have not been deleted so they cannot be undeleted: {', '.join(names)}")
message = f"Undeleted {len(quotas)} quotas: "
for q in quotas:
q.deleted = False
self.sa_session.add(q)
names.append(q.name)
with transaction(self.sa_session):
self.sa_session.commit()
message += ", ".join(names)
return message
[docs] def purge_quota(self, quota, params=None):
"""
This method should only be called for a Quota that has previously been deleted.
Purging a deleted Quota deletes all of the following from the database:
- UserQuotaAssociations where quota_id == Quota.id
- GroupQuotaAssociations where quota_id == Quota.id
"""
quotas = util.listify(quota)
names = []
for q in quotas:
if not q.deleted:
names.append(q.name)
if len(names) == 1:
raise ActionInputError(f"Quota '{names[0]}' has not been deleted, so it cannot be purged.")
elif len(names) > 1:
raise ActionInputError(f"Quotas have not been deleted so they cannot be undeleted: {', '.join(names)}")
message = f"Purged {len(quotas)} quotas: "
for q in quotas:
# Delete UserQuotaAssociations
for uqa in q.users:
self.sa_session.delete(uqa)
# Delete GroupQuotaAssociations
for gqa in q.groups:
self.sa_session.delete(gqa)
names.append(q.name)
with transaction(self.sa_session):
self.sa_session.commit()
message += ", ".join(names)
return message
[docs] def get_quota(self, trans, id: int, deleted: Optional[bool] = None) -> model.Quota:
return base.get_object(trans, id, "Quota", check_ownership=False, check_accessible=False, deleted=deleted)