mirror of https://github.com/GNS3/gns3-server
grossmj
3 years ago
parent
d730c591b3
commit
0fea3f969e
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# -*- coding: utf-8 -*-
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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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import uuid
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import pydantic
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from uuid import UUID
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from fastapi.encoders import jsonable_encoder
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from typing import List
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from gns3server import schemas
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from gns3server.db.repositories.templates import TemplatesRepository
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from gns3server.controller import Controller
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from gns3server.controller.controller_error import (
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ControllerBadRequestError,
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ControllerNotFoundError,
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ControllerForbiddenError
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)
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TEMPLATE_TYPE_TO_SHEMA = {
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"cloud": schemas.CloudTemplate,
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"ethernet_hub": schemas.EthernetHubTemplate,
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"ethernet_switch": schemas.EthernetSwitchTemplate,
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"docker": schemas.DockerTemplate,
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"dynamips": schemas.DynamipsTemplate,
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"vpcs": schemas.VPCSTemplate,
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"virtualbox": schemas.VirtualBoxTemplate,
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"vmware": schemas.VMwareTemplate,
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"iou": schemas.IOUTemplate,
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"qemu": schemas.QemuTemplate
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}
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DYNAMIPS_PLATFORM_TO_SHEMA = {
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"c7200": schemas.C7200DynamipsTemplate,
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"c3745": schemas.C3745DynamipsTemplate,
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"c3725": schemas.C3725DynamipsTemplate,
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"c3600": schemas.C3600DynamipsTemplate,
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"c2691": schemas.C2691DynamipsTemplate,
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"c2600": schemas.C2600DynamipsTemplate,
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"c1700": schemas.C1700DynamipsTemplate
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}
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# built-in templates have their compute_id set to None to tell clients to select a compute
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BUILTIN_TEMPLATES = [
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "cloud"),
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"template_type": "cloud",
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"name": "Cloud",
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"default_name_format": "Cloud{0}",
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"category": "guest",
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"symbol": ":/symbols/cloud.svg",
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"compute_id": None,
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"builtin": True
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},
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "nat"),
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"template_type": "nat",
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"name": "NAT",
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"default_name_format": "NAT{0}",
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"category": "guest",
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"symbol": ":/symbols/cloud.svg",
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"compute_id": None,
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"builtin": True
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},
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "vpcs"),
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"template_type": "vpcs",
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"name": "VPCS",
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"default_name_format": "PC{0}",
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"category": "guest",
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"symbol": ":/symbols/vpcs_guest.svg",
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"base_script_file": "vpcs_base_config.txt",
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"compute_id": None,
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"builtin": True
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},
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "ethernet_switch"),
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"template_type": "ethernet_switch",
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"name": "Ethernet switch",
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"console_type": "none",
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"default_name_format": "Switch{0}",
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"category": "switch",
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"symbol": ":/symbols/ethernet_switch.svg",
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"compute_id": None,
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"builtin": True
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},
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "ethernet_hub"),
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"template_type": "ethernet_hub",
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"name": "Ethernet hub",
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"default_name_format": "Hub{0}",
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"category": "switch",
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"symbol": ":/symbols/hub.svg",
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"compute_id": None,
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"builtin": True
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},
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "frame_relay_switch"),
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"template_type": "frame_relay_switch",
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"name": "Frame Relay switch",
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"default_name_format": "FRSW{0}",
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"category": "switch",
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"symbol": ":/symbols/frame_relay_switch.svg",
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"compute_id": None,
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"builtin": True
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},
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{
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"template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "atm_switch"),
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"template_type": "atm_switch",
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"name": "ATM switch",
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"default_name_format": "ATMSW{0}",
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"category": "switch",
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"symbol": ":/symbols/atm_switch.svg",
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"compute_id": None,
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"builtin": True
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},
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]
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class TemplatesService:
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def __init__(self, templates_repo: TemplatesRepository):
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self._templates_repo = templates_repo
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self._controller = Controller.instance()
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def get_builtin_template(self, template_id: UUID) -> dict:
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for builtin_template in BUILTIN_TEMPLATES:
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if builtin_template["template_id"] == template_id:
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return jsonable_encoder(builtin_template)
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async def get_templates(self) -> List[dict]:
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templates = []
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db_templates = await self._templates_repo.get_templates()
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for db_template in db_templates:
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templates.append(db_template.asjson())
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for builtin_template in BUILTIN_TEMPLATES:
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templates.append(jsonable_encoder(builtin_template))
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return templates
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async def create_template(self, template_data: schemas.TemplateCreate) -> dict:
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try:
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# get the default template settings
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template_settings = jsonable_encoder(template_data, exclude_unset=True)
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template_schema = TEMPLATE_TYPE_TO_SHEMA[template_data.template_type]
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template_settings_with_defaults = template_schema.parse_obj(template_settings)
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settings = template_settings_with_defaults.dict()
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if template_data.template_type == "dynamips":
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# special case for Dynamips to cover all platform types that contain specific settings
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dynamips_template_schema = DYNAMIPS_PLATFORM_TO_SHEMA[settings["platform"]]
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dynamips_template_settings_with_defaults = dynamips_template_schema.parse_obj(template_settings)
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settings = dynamips_template_settings_with_defaults.dict()
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except pydantic.ValidationError as e:
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raise ControllerBadRequestError(f"JSON schema error received while creating new template: {e}")
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db_template = await self._templates_repo.create_template(template_data.template_type, settings)
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template = db_template.asjson()
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self._controller.notification.controller_emit("template.created", template)
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return template
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async def get_template(self, template_id: UUID) -> dict:
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db_template = await self._templates_repo.get_template(template_id)
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if db_template:
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template = db_template.asjson()
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else:
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template = self.get_builtin_template(template_id)
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if not template:
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raise ControllerNotFoundError(f"Template '{template_id}' not found")
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return template
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async def update_template(self, template_id: UUID, template_data: schemas.TemplateUpdate) -> dict:
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if self.get_builtin_template(template_id):
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raise ControllerForbiddenError(f"Template '{template_id}' cannot be updated because it is built-in")
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template = await self._templates_repo.update_template(template_id, template_data)
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if not template:
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raise ControllerNotFoundError(f"Template '{template_id}' not found")
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template = template.asjson()
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self._controller.notification.controller_emit("template.updated", template)
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return template
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async def duplicate_template(self, template_id: UUID) -> dict:
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if self.get_builtin_template(template_id):
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raise ControllerForbiddenError(f"Template '{template_id}' cannot be duplicated because it is built-in")
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db_template = await self._templates_repo.duplicate_template(template_id)
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if not db_template:
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raise ControllerNotFoundError(f"Template '{template_id}' not found")
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template = db_template.asjson()
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self._controller.notification.controller_emit("template.created", template)
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return template
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async def delete_template(self, template_id: UUID) -> None:
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if self.get_builtin_template(template_id):
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raise ControllerForbiddenError(f"Template '{template_id}' cannot be deleted because it is built-in")
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if await self._templates_repo.delete_template(template_id):
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self._controller.notification.controller_emit("template.deleted", {"template_id": str(template_id)})
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else:
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raise ControllerNotFoundError(f"Template '{template_id}' not found")
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