# # Copyright (C) 2021 GNS3 Technologies Inc. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . import uuid import pydantic from uuid import UUID from fastapi.encoders import jsonable_encoder from typing import List from gns3server import schemas from gns3server.db.repositories.templates import TemplatesRepository from gns3server.controller import Controller from gns3server.controller.controller_error import ( ControllerBadRequestError, ControllerNotFoundError, ControllerForbiddenError ) TEMPLATE_TYPE_TO_SHEMA = { "cloud": schemas.CloudTemplate, "ethernet_hub": schemas.EthernetHubTemplate, "ethernet_switch": schemas.EthernetSwitchTemplate, "docker": schemas.DockerTemplate, "dynamips": schemas.DynamipsTemplate, "vpcs": schemas.VPCSTemplate, "virtualbox": schemas.VirtualBoxTemplate, "vmware": schemas.VMwareTemplate, "iou": schemas.IOUTemplate, "qemu": schemas.QemuTemplate } DYNAMIPS_PLATFORM_TO_SHEMA = { "c7200": schemas.C7200DynamipsTemplate, "c3745": schemas.C3745DynamipsTemplate, "c3725": schemas.C3725DynamipsTemplate, "c3600": schemas.C3600DynamipsTemplate, "c2691": schemas.C2691DynamipsTemplate, "c2600": schemas.C2600DynamipsTemplate, "c1700": schemas.C1700DynamipsTemplate } # built-in templates have their compute_id set to None to tell clients to select a compute BUILTIN_TEMPLATES = [ { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "cloud"), "template_type": "cloud", "name": "Cloud", "default_name_format": "Cloud{0}", "category": "guest", "symbol": ":/symbols/cloud.svg", "compute_id": None, "builtin": True }, { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "nat"), "template_type": "nat", "name": "NAT", "default_name_format": "NAT{0}", "category": "guest", "symbol": ":/symbols/cloud.svg", "compute_id": None, "builtin": True }, { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "vpcs"), "template_type": "vpcs", "name": "VPCS", "default_name_format": "PC{0}", "category": "guest", "symbol": ":/symbols/vpcs_guest.svg", "base_script_file": "vpcs_base_config.txt", "compute_id": None, "builtin": True }, { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "ethernet_switch"), "template_type": "ethernet_switch", "name": "Ethernet switch", "console_type": "none", "default_name_format": "Switch{0}", "category": "switch", "symbol": ":/symbols/ethernet_switch.svg", "compute_id": None, "builtin": True }, { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "ethernet_hub"), "template_type": "ethernet_hub", "name": "Ethernet hub", "default_name_format": "Hub{0}", "category": "switch", "symbol": ":/symbols/hub.svg", "compute_id": None, "builtin": True }, { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "frame_relay_switch"), "template_type": "frame_relay_switch", "name": "Frame Relay switch", "default_name_format": "FRSW{0}", "category": "switch", "symbol": ":/symbols/frame_relay_switch.svg", "compute_id": None, "builtin": True }, { "template_id": uuid.uuid3(uuid.NAMESPACE_DNS, "atm_switch"), "template_type": "atm_switch", "name": "ATM switch", "default_name_format": "ATMSW{0}", "category": "switch", "symbol": ":/symbols/atm_switch.svg", "compute_id": None, "builtin": True }, ] class TemplatesService: def __init__(self, templates_repo: TemplatesRepository): self._templates_repo = templates_repo self._controller = Controller.instance() def get_builtin_template(self, template_id: UUID) -> dict: for builtin_template in BUILTIN_TEMPLATES: if builtin_template["template_id"] == template_id: return jsonable_encoder(builtin_template) async def get_templates(self) -> List[dict]: templates = [] db_templates = await self._templates_repo.get_templates() for db_template in db_templates: templates.append(db_template.asjson()) for builtin_template in BUILTIN_TEMPLATES: templates.append(jsonable_encoder(builtin_template)) return templates async def create_template(self, template_create: schemas.TemplateCreate) -> dict: try: # get the default template settings template_settings = jsonable_encoder(template_create, exclude_unset=True) template_schema = TEMPLATE_TYPE_TO_SHEMA[template_create.template_type] template_settings_with_defaults = template_schema.parse_obj(template_settings) settings = template_settings_with_defaults.dict() if template_create.template_type == "dynamips": # special case for Dynamips to cover all platform types that contain specific settings dynamips_template_schema = DYNAMIPS_PLATFORM_TO_SHEMA[settings["platform"]] dynamips_template_settings_with_defaults = dynamips_template_schema.parse_obj(template_settings) settings = dynamips_template_settings_with_defaults.dict() except pydantic.ValidationError as e: raise ControllerBadRequestError(f"JSON schema error received while creating new template: {e}") db_template = await self._templates_repo.create_template(template_create.template_type, settings) template = db_template.asjson() self._controller.notification.controller_emit("template.created", template) return template async def get_template(self, template_id: UUID) -> dict: db_template = await self._templates_repo.get_template(template_id) if db_template: template = db_template.asjson() else: template = self.get_builtin_template(template_id) if not template: raise ControllerNotFoundError(f"Template '{template_id}' not found") return template async def update_template(self, template_id: UUID, template_update: schemas.TemplateUpdate) -> dict: if self.get_builtin_template(template_id): raise ControllerForbiddenError(f"Template '{template_id}' cannot be updated because it is built-in") db_template = await self._templates_repo.update_template(template_id, template_update) if not db_template: raise ControllerNotFoundError(f"Template '{template_id}' not found") template = db_template.asjson() self._controller.notification.controller_emit("template.updated", template) return template async def duplicate_template(self, template_id: UUID) -> dict: if self.get_builtin_template(template_id): raise ControllerForbiddenError(f"Template '{template_id}' cannot be duplicated because it is built-in") db_template = await self._templates_repo.duplicate_template(template_id) if not db_template: raise ControllerNotFoundError(f"Template '{template_id}' not found") template = db_template.asjson() self._controller.notification.controller_emit("template.created", template) return template async def delete_template(self, template_id: UUID) -> None: if self.get_builtin_template(template_id): raise ControllerForbiddenError(f"Template '{template_id}' cannot be deleted because it is built-in") if await self._templates_repo.delete_template(template_id): self._controller.notification.controller_emit("template.deleted", {"template_id": str(template_id)}) else: raise ControllerNotFoundError(f"Template '{template_id}' not found")