gns3-server/gns3server/handlers/api/controller/symbol_handler.py

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#!/usr/bin/env python
#
# Copyright (C) 2016 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/>.
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import os
import aiohttp
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import asyncio
from gns3server.web.route import Route
from gns3server.controller import Controller
import logging
log = logging.getLogger(__name__)
class SymbolHandler:
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"""
API entry points for symbols management.
"""
@Route.get(
r"/symbols",
description="List of symbols",
status_codes={
200: "Symbols list returned"
})
def list(request, response):
controller = Controller.instance()
response.json(controller.symbols.list())
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@Route.get(
r"/symbols/{symbol_id:.+}/raw",
description="Get the symbol file",
status_codes={
200: "Symbol returned"
})
async def raw(request, response):
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controller = Controller.instance()
try:
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await response.stream_file(controller.symbols.get_path(request.match_info["symbol_id"]))
except (KeyError, OSError) as e:
log.warning("Could not get symbol file: {}".format(e))
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response.set_status(404)
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@Route.post(
r"/symbols/{symbol_id:.+}/raw",
description="Write the symbol file",
status_codes={
200: "Symbol written"
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},
raw=True)
async def upload(request, response):
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controller = Controller.instance()
path = os.path.join(controller.symbols.symbols_path(), os.path.basename(request.match_info["symbol_id"]))
try:
with open(path, "wb") as f:
while True:
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try:
chunk = await request.content.read(1024)
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except asyncio.TimeoutError:
raise aiohttp.web.HTTPRequestTimeout(text="Timeout when writing to symbol '{}'".format(path))
if not chunk:
break
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f.write(chunk)
except (UnicodeEncodeError, OSError) as e:
raise aiohttp.web.HTTPConflict(text="Could not write symbol file '{}': {}".format(path, e))
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# Reset the symbol list
controller.symbols.list()
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response.set_status(204)
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# @Route.post(
# r"/symbol_theme",
# description="Create a new symbol theme",
# status_codes={
# 201: "Appliance created",
# 400: "Invalid request"
# },
# input=APPLIANCE_CREATE_SCHEMA,
# output=APPLIANCE_OBJECT_SCHEMA)
# def create(request, response):
#
# controller = Controller.instance()
# appliance = controller.add_appliance(request.json)
# response.set_status(201)
# response.json(appliance)