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106 lines
3.9 KiB
106 lines
3.9 KiB
#!/usr/bin/env python
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#
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# Copyright (C) 2021 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from uuid import UUID
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from typing import List, Union
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from sqlalchemy import select, update, delete
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy.orm.session import make_transient
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from .base import BaseRepository
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import gns3server.db.models as models
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from gns3server import schemas
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TEMPLATE_TYPE_TO_MODEL = {
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"cloud": models.CloudTemplate,
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"docker": models.DockerTemplate,
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"dynamips": models.DynamipsTemplate,
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"ethernet_hub": models.EthernetHubTemplate,
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"ethernet_switch": models.EthernetSwitchTemplate,
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"iou": models.IOUTemplate,
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"qemu": models.QemuTemplate,
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"virtualbox": models.VirtualBoxTemplate,
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"vmware": models.VMwareTemplate,
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"vpcs": models.VPCSTemplate,
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}
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class TemplatesRepository(BaseRepository):
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def __init__(self, db_session: AsyncSession) -> None:
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super().__init__(db_session)
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async def get_template(self, template_id: UUID) -> Union[None, models.Template]:
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query = select(models.Template).where(models.Template.template_id == template_id)
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result = await self._db_session.execute(query)
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return result.scalars().first()
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async def get_templates(self) -> List[models.Template]:
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query = select(models.Template)
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result = await self._db_session.execute(query)
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return result.scalars().all()
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async def create_template(self, template_type: str, template_settings: dict) -> models.Template:
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model = TEMPLATE_TYPE_TO_MODEL[template_type]
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db_template = model(**template_settings)
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self._db_session.add(db_template)
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await self._db_session.commit()
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await self._db_session.refresh(db_template)
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return db_template
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async def update_template(self, template_id: UUID, template_update: schemas.TemplateUpdate) -> schemas.Template:
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update_values = template_update.dict(exclude_unset=True)
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query = update(models.Template). \
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where(models.Template.template_id == template_id). \
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values(update_values)
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await self._db_session.execute(query)
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await self._db_session.commit()
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template_db = await self.get_template(template_id)
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if template_db:
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await self._db_session.refresh(template_db) # force refresh of updated_at value
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return template_db
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async def delete_template(self, template_id: UUID) -> bool:
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query = delete(models.Template).where(models.Template.template_id == template_id)
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result = await self._db_session.execute(query)
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await self._db_session.commit()
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return result.rowcount > 0
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async def duplicate_template(self, template_id: UUID) -> schemas.Template:
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query = select(models.Template).where(models.Template.template_id == template_id)
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db_template = (await self._db_session.execute(query)).scalars().first()
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if not db_template:
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return db_template
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# duplicate db object with new primary key (template_id)
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self._db_session.expunge(db_template)
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make_transient(db_template)
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db_template.template_id = None
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self._db_session.add(db_template)
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await self._db_session.commit()
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await self._db_session.refresh(db_template)
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return db_template
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