1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <[email protected]> #
# #
# 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 multiprocessing
import time
from typing import Tuple
from typing import Dict
from typing import Iterable
from typing import AsyncGenerator
from typing import Optional
from ....logging import get_logger
from ....yamlconf import Option
from ....validators.basic import valid_bool
from ....validators.basic import valid_stripped_string_not_empty
from ....validators.basic import valid_int_f1
from ....validators.basic import valid_float_f01
from .... import aiotools
from .... import aiomulti
from .... import aioproc
from .. import BaseHid
from ..otg.events import ResetEvent
from ..otg.events import make_keyboard_event
from ..otg.events import MouseButtonEvent
from ..otg.events import MouseRelativeEvent
from ..otg.events import MouseWheelEvent
from .sdp import make_sdp_record
from .bluez import BluezIface
from .server import BtServer
# =====
class Plugin(BaseHid): # pylint: disable=too-many-instance-attributes
# https://github.com/SySS-Research/bluetooth-keyboard-emulator
# https://github.com/nutki/bt-keyboard-switcher
# https://gist.github.com/whitelynx/9f9bd4cb266b3924c64dfdff14bce2e8
# https://archlinuxarm.org/forum/viewtopic.php?f=67&t=14244
def __init__( # pylint: disable=too-many-arguments,too-many-locals,super-init-not-called
self,
manufacturer: str,
product: str,
description: str,
iface: str,
alias: str,
pairing_required: bool,
auth_required: bool,
control_public: bool,
unpair_on_close: bool,
max_clients: int,
socket_timeout: float,
select_timeout: float,
) -> None:
self.__proc: Optional[multiprocessing.Process] = None
self.__stop_event = multiprocessing.Event()
self.__notifier = aiomulti.AioProcessNotifier()
self.__server = BtServer(
iface=BluezIface(
iface=iface,
alias=alias,
sdp_record=make_sdp_record(manufacturer, product, description),
pairing_required=pairing_required,
auth_required=auth_required,
),
control_public=control_public,
unpair_on_close=unpair_on_close,
max_clients=max_clients,
socket_timeout=socket_timeout,
select_timeout=select_timeout,
notifier=self.__notifier,
stop_event=self.__stop_event,
)
@classmethod
def get_plugin_options(cls) -> Dict:
return {
"manufacturer": Option("Pi-KVM"),
"product": Option("HID Device"),
"description": Option("Bluetooth Keyboard & Mouse"),
"iface": Option("hci0", type=valid_stripped_string_not_empty),
"alias": Option("Pi-KVM HID"),
"pairing_required": Option(True, type=valid_bool),
"auth_required": Option(False, type=valid_bool),
"control_public": Option(True, type=valid_bool),
"unpair_on_close": Option(True, type=valid_bool),
"max_clients": Option(1, type=valid_int_f1),
"socket_timeout": Option(5.0, type=valid_float_f01),
"select_timeout": Option(1.0, type=valid_float_f01),
}
def sysprep(self) -> None:
get_logger(0).info("Starting HID daemon ...")
self.__proc = multiprocessing.Process(target=self.__server_worker, daemon=True)
self.__proc.start()
async def get_state(self) -> Dict:
state = await self.__server.get_state()
outputs: Dict = {"available": [], "active": ""}
return {
"online": True,
"busy": False,
"connected": None,
"keyboard": {
"online": state["online"],
"leds": {
"caps": state["caps"],
"scroll": state["scroll"],
"num": state["num"],
},
"outputs": outputs,
},
"mouse": {
"online": state["online"],
"absolute": False,
"outputs": outputs,
},
}
async def poll_state(self) -> AsyncGenerator[Dict, None]:
prev_state: Dict = {}
while True:
state = await self.get_state()
if state != prev_state:
yield state
prev_state = state
await self.__notifier.wait()
async def reset(self) -> None:
self.clear_events()
self.__server.queue_event(ResetEvent())
@aiotools.atomic
async def cleanup(self) -> None:
if self.__proc is not None:
if self.__proc.is_alive():
get_logger(0).info("Stopping HID daemon ...")
self.__stop_event.set()
if self.__proc.exitcode is not None:
self.__proc.join()
# =====
def send_key_events(self, keys: Iterable[Tuple[str, bool]]) -> None:
for (key, state) in keys:
self.__server.queue_event(make_keyboard_event(key, state))
def send_mouse_button_event(self, button: str, state: bool) -> None:
self.__server.queue_event(MouseButtonEvent(button, state))
def send_mouse_relative_event(self, delta_x: int, delta_y: int) -> None:
self.__server.queue_event(MouseRelativeEvent(delta_x, delta_y))
def send_mouse_wheel_event(self, delta_x: int, delta_y: int) -> None:
self.__server.queue_event(MouseWheelEvent(delta_x, delta_y))
def clear_events(self) -> None:
self.__server.clear_events()
# =====
def __server_worker(self) -> None: # pylint: disable=too-many-branches
logger = aioproc.settle("HID", "hid")
while not self.__stop_event.is_set():
try:
self.__server.run()
except Exception:
logger.exception("Unexpected HID error")
time.sleep(5)
|
