2019-12-09 02:23:05 +03:00

107 lines
4.6 KiB
Python

# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
# #
# 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 <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import aiohttp
import aiohttp.web
from ....logging import get_logger
from ....plugins.msd import BaseMsd
from ....validators.basic import valid_bool
from ....validators.kvm import valid_msd_image_name
from ..http import exposed_http
from ..http import make_json_response
from ..http import get_multipart_field
# ======
class MsdApi:
def __init__(self, msd: BaseMsd, sync_chunk_size: int) -> None:
self.__msd = msd
self.__sync_chunk_size = sync_chunk_size
# =====
@exposed_http("GET", "/msd")
async def __state_handler(self, _: aiohttp.web.Request) -> aiohttp.web.Response:
return make_json_response(await self.__msd.get_state())
@exposed_http("POST", "/msd/set_params")
async def __set_params_handler(self, request: aiohttp.web.Request) -> aiohttp.web.Response:
params = {
key: validator(request.query.get(param))
for (param, key, validator) in [
("image", "name", (lambda arg: str(arg).strip() and valid_msd_image_name(arg))),
("cdrom", "cdrom", valid_bool),
]
if request.query.get(param) is not None
}
await self.__msd.set_params(**params) # type: ignore
return make_json_response()
@exposed_http("POST", "/msd/connect")
async def __connect_handler(self, _: aiohttp.web.Request) -> aiohttp.web.Response:
await self.__msd.connect()
return make_json_response()
@exposed_http("POST", "/msd/disconnect")
async def __disconnect_handler(self, _: aiohttp.web.Request) -> aiohttp.web.Response:
await self.__msd.disconnect()
return make_json_response()
@exposed_http("POST", "/msd/write")
async def __write_handler(self, request: aiohttp.web.Request) -> aiohttp.web.Response:
logger = get_logger(0)
reader = await request.multipart()
name = ""
written = 0
try:
name_field = await get_multipart_field(reader, "image")
name = valid_msd_image_name((await name_field.read()).decode("utf-8"))
data_field = await get_multipart_field(reader, "data")
async with self.__msd.write_image(name):
logger.info("Writing image %r to MSD ...", name)
while True:
chunk = await data_field.read_chunk(self.__sync_chunk_size)
if not chunk:
break
written = await self.__msd.write_image_chunk(chunk)
finally:
if written != 0:
logger.info("Written image %r with size=%d bytes to MSD", name, written)
return make_json_response({"image": {"name": name, "size": written}})
@exposed_http("POST", "/msd/remove")
async def __remove_handler(self, request: aiohttp.web.Request) -> aiohttp.web.Response:
await self.__msd.remove(valid_msd_image_name(request.query.get("image")))
return make_json_response()
@exposed_http("POST", "/msd/reset")
async def __reset_handler(self, _: aiohttp.web.Request) -> aiohttp.web.Response:
await self.__msd.reset()
return make_json_response()