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gns3-server/gns3server/endpoints/controller/templates.py
2020-10-31 16:02:21 +10:30

149 lines
4.7 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2020 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 <http://www.gnu.org/licenses/>.
"""
API endpoints for templates.
"""
import hashlib
import json
import logging
log = logging.getLogger(__name__)
from fastapi import APIRouter, Request, Response, HTTPException, status
from fastapi.encoders import jsonable_encoder
from typing import List
from uuid import UUID
from gns3server import schemas
from gns3server.controller import Controller
router = APIRouter()
responses = {
404: {"model": schemas.ErrorMessage, "description": "Could not find template"}
}
@router.post("/templates",
status_code=status.HTTP_201_CREATED,
response_model=schemas.Template)
def create_template(template_data: schemas.TemplateCreate):
"""
Create a new template.
"""
controller = Controller.instance()
template = controller.template_manager.add_template(jsonable_encoder(template_data, exclude_unset=True))
# Reset the symbol list
controller.symbols.list()
return template.__json__()
@router.get("/templates/{template_id}",
response_model=schemas.Template,
response_model_exclude_unset=True,
responses=responses)
def get_template(template_id: UUID, request: Request, response: Response):
"""
Return a template.
"""
request_etag = request.headers.get("If-None-Match", "")
controller = Controller.instance()
template = controller.template_manager.get_template(str(template_id))
data = json.dumps(template.__json__())
template_etag = '"' + hashlib.md5(data.encode()).hexdigest() + '"'
if template_etag == request_etag:
raise HTTPException(status_code=status.HTTP_304_NOT_MODIFIED)
else:
response.headers["ETag"] = template_etag
return template.__json__()
@router.put("/templates/{template_id}",
response_model=schemas.Template,
response_model_exclude_unset=True,
responses=responses)
def update_template(template_id: UUID, template_data: schemas.TemplateUpdate):
"""
Update a template.
"""
controller = Controller.instance()
template = controller.template_manager.get_template(str(template_id))
template.update(**jsonable_encoder(template_data, exclude_unset=True))
return template.__json__()
@router.delete("/templates/{template_id}",
status_code=status.HTTP_204_NO_CONTENT,
responses=responses)
def delete_template(template_id: UUID):
"""
Delete a template.
"""
controller = Controller.instance()
controller.template_manager.delete_template(str(template_id))
@router.get("/templates",
response_model=List[schemas.Template],
response_model_exclude_unset=True)
def get_templates():
"""
Return all templates.
"""
controller = Controller.instance()
return [c.__json__() for c in controller.template_manager.templates.values()]
@router.post("/templates/{template_id}/duplicate",
response_model=schemas.Template,
status_code=status.HTTP_201_CREATED,
responses=responses)
async def duplicate_template(template_id: UUID):
"""
Duplicate a template.
"""
controller = Controller.instance()
template = controller.template_manager.duplicate_template(str(template_id))
return template.__json__()
@router.post("/projects/{project_id}/templates/{template_id}",
response_model=schemas.Node,
status_code=status.HTTP_201_CREATED,
responses={404: {"model": schemas.ErrorMessage, "description": "Could not find project or template"}})
async def create_node_from_template(project_id: UUID, template_id: UUID, template_usage: schemas.TemplateUsage):
"""
Create a new node from a template.
"""
controller = Controller.instance()
project = controller.get_project(str(project_id))
node = await project.add_node_from_template(str(template_id),
x=template_usage.x,
y=template_usage.y,
compute_id=template_usage.compute_id)
return node.__json__()