mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-15 10:40:28 +08:00
191 lines
7.8 KiB
Python
191 lines
7.8 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main Pi-KVM daemon. #
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# #
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# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
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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 <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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import os
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import stat
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import functools
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from typing import Dict
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from typing import Set
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from aiohttp.web import Request
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from aiohttp.web import Response
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from aiohttp.web import WebSocketResponse
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from ....plugins.hid import BaseHid
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from ....validators import raise_error
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from ....validators.basic import valid_bool
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from ....validators.basic import valid_int_f0
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from ....validators.os import valid_printable_filename
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from ....validators.kvm import valid_hid_key
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from ....validators.kvm import valid_hid_mouse_move
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from ....validators.kvm import valid_hid_mouse_button
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from ....validators.kvm import valid_hid_mouse_wheel
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from ....keyboard.keysym import SymmapWebKey
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from ....keyboard.keysym import build_symmap
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from ....keyboard.printer import text_to_web_keys
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from ..http import exposed_http
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from ..http import exposed_ws
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from ..http import make_json_response
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# =====
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class HidApi:
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def __init__(self, hid: BaseHid, keymap_path: str) -> None:
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self.__hid = hid
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self.__keymaps_dir_path = os.path.dirname(keymap_path)
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self.__default_keymap_name = os.path.basename(keymap_path)
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self.__ensure_symmap(self.__default_keymap_name)
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# =====
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@exposed_http("GET", "/hid")
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async def __state_handler(self, _: Request) -> Response:
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return make_json_response(await self.__hid.get_state())
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@exposed_http("POST", "/hid/reset")
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async def __reset_handler(self, _: Request) -> Response:
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await self.__hid.reset()
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return make_json_response()
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# =====
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@exposed_http("GET", "/hid/keymaps")
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async def __keymaps_handler(self, _: Request) -> Response:
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keymaps: Set[str] = set()
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for keymap_name in os.listdir(self.__keymaps_dir_path):
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path = os.path.join(self.__keymaps_dir_path, keymap_name)
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if os.access(path, os.R_OK) and stat.S_ISREG(os.stat(path).st_mode):
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keymaps.add(keymap_name)
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return make_json_response({
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"keymaps": {
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"default": self.__default_keymap_name,
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"available": sorted(keymaps),
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},
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})
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@exposed_http("POST", "/hid/print")
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async def __print_handler(self, request: Request) -> Response:
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text = await request.text()
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limit = int(valid_int_f0(request.query.get("limit", "1024")))
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if limit > 0:
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text = text[:limit]
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symmap = self.__ensure_symmap(request.query.get("keymap", self.__default_keymap_name))
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self.__hid.send_key_events(text_to_web_keys(text, symmap))
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return make_json_response()
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def __ensure_symmap(self, keymap_name: str) -> Dict[int, SymmapWebKey]:
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keymap_name = valid_printable_filename(keymap_name, "keymap")
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path = os.path.join(self.__keymaps_dir_path, keymap_name)
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try:
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st = os.stat(path)
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if not (os.access(path, os.R_OK) and stat.S_ISREG(st.st_mode)):
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raise_error(keymap_name, "keymap")
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except Exception:
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raise_error(keymap_name, "keymap")
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return self.__inner_ensure_symmap(path, st.st_mtime)
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@functools.lru_cache(maxsize=10)
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def __inner_ensure_symmap(self, path: str, mtime: int) -> Dict[int, SymmapWebKey]:
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_ = mtime # For LRU
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return build_symmap(path)
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# =====
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@exposed_ws("key")
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async def __ws_key_handler(self, _: WebSocketResponse, event: Dict) -> None:
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try:
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key = valid_hid_key(event["key"])
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state = valid_bool(event["state"])
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except Exception:
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return
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self.__hid.send_key_events([(key, state)])
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@exposed_ws("mouse_button")
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async def __ws_mouse_button_handler(self, _: WebSocketResponse, event: Dict) -> None:
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try:
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button = valid_hid_mouse_button(event["button"])
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state = valid_bool(event["state"])
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except Exception:
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return
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self.__hid.send_mouse_button_event(button, state)
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@exposed_ws("mouse_move")
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async def __ws_mouse_move_handler(self, _: WebSocketResponse, event: Dict) -> None:
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try:
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to_x = valid_hid_mouse_move(event["to"]["x"])
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to_y = valid_hid_mouse_move(event["to"]["y"])
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except Exception:
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return
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self.__hid.send_mouse_move_event(to_x, to_y)
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@exposed_ws("mouse_wheel")
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async def __ws_mouse_wheel_handler(self, _: WebSocketResponse, event: Dict) -> None:
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try:
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delta_x = valid_hid_mouse_wheel(event["delta"]["x"])
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delta_y = valid_hid_mouse_wheel(event["delta"]["y"])
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except Exception:
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return
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self.__hid.send_mouse_wheel_event(delta_x, delta_y)
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# =====
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@exposed_http("POST", "/hid/events/send_key")
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async def __events_send_key_handler(self, request: Request) -> Response:
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key = valid_hid_key(request.query.get("key"))
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if "state" in request.query:
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state = valid_bool(request.query["state"])
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self.__hid.send_key_events([(key, state)])
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else:
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self.__hid.send_key_events([(key, True), (key, False)])
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return make_json_response()
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@exposed_http("POST", "/hid/events/send_mouse_button")
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async def __events_send_mouse_button_handler(self, request: Request) -> Response:
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button = valid_hid_mouse_button(request.query.get("button"))
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if "state" in request.query:
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state = valid_bool(request.query["state"])
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self.__hid.send_mouse_button_event(button, state)
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else:
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self.__hid.send_mouse_button_event(button, True)
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self.__hid.send_mouse_button_event(button, False)
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return make_json_response()
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@exposed_http("POST", "/hid/events/send_mouse_move")
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async def __events_send_mouse_move_handler(self, request: Request) -> Response:
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to_x = valid_hid_mouse_move(request.query.get("to_x"))
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to_y = valid_hid_mouse_move(request.query.get("to_y"))
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self.__hid.send_mouse_move_event(to_x, to_y)
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return make_json_response()
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@exposed_http("POST", "/hid/events/send_mouse_wheel")
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async def __events_send_mouse_wheel(self, request: Request) -> Response:
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delta_x = valid_hid_mouse_wheel(request.query.get("delta_x"))
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delta_y = valid_hid_mouse_wheel(request.query.get("delta_y"))
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self.__hid.send_mouse_wheel_event(delta_x, delta_y)
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return make_json_response()
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