|
1
|
|
|
import asyncio |
|
2
|
|
|
import json |
|
3
|
|
|
import logging |
|
4
|
|
|
import typing |
|
5
|
|
|
|
|
6
|
|
|
import aiohttp |
|
7
|
|
|
|
|
8
|
|
|
from .base import BaseJsonRpcClient |
|
9
|
|
|
from .. import errors, utils |
|
10
|
|
|
|
|
11
|
|
|
|
|
12
|
|
|
__all__ = ( |
|
13
|
|
|
'WsJsonRpcClient', |
|
14
|
|
|
) |
|
15
|
|
|
|
|
16
|
|
|
logger = logging.getLogger(__name__) |
|
17
|
|
|
|
|
18
|
|
|
|
|
19
|
|
|
class WsJsonRpcClient(BaseJsonRpcClient): |
|
20
|
|
|
ws_connect = None |
|
21
|
|
|
notify_about_result: typing.Optional[typing.Callable] = None |
|
22
|
|
|
timeout: typing.Optional[int] |
|
23
|
|
|
ws_connect_kwargs: dict |
|
24
|
|
|
_pending: typing.Dict[typing.Any, asyncio.Future] |
|
25
|
|
|
_message_worker: typing.Optional[asyncio.Future] = None |
|
26
|
|
|
|
|
27
|
|
|
def __init__(self, |
|
28
|
|
|
url: str, *, |
|
29
|
|
|
session: typing.Optional[aiohttp.ClientSession] = None, |
|
30
|
|
|
timeout: typing.Optional[int] = 5, |
|
31
|
|
|
**ws_connect_kwargs) -> None: |
|
32
|
|
|
self.url = url |
|
33
|
|
|
self.session = session |
|
34
|
|
|
self._is_outer_session = session is not None |
|
35
|
|
|
self._pending = {} |
|
36
|
|
|
self.timeout = timeout |
|
37
|
|
|
self.ws_connect_kwargs = ws_connect_kwargs |
|
38
|
|
|
|
|
39
|
|
|
async def connect(self) -> None: |
|
40
|
|
|
if not self.session: |
|
41
|
|
|
self.session = aiohttp.ClientSession(json_serialize=self.json_serialize) |
|
42
|
|
|
|
|
43
|
|
|
try: |
|
44
|
|
|
self.ws_connect = await self.session.ws_connect(self.url, **self.ws_connect_kwargs) |
|
45
|
|
|
except Exception: |
|
46
|
|
|
await self.disconnect() |
|
47
|
|
|
raise |
|
48
|
|
|
|
|
49
|
|
|
self._message_worker = asyncio.ensure_future(self._handle_ws_messages()) |
|
50
|
|
|
|
|
51
|
|
|
async def disconnect(self) -> None: |
|
52
|
|
|
if self.ws_connect: |
|
53
|
|
|
await self.ws_connect.close() |
|
54
|
|
|
|
|
55
|
|
|
if not self._is_outer_session: |
|
56
|
|
|
await self.session.close() |
|
57
|
|
|
|
|
58
|
|
|
if self._message_worker: |
|
59
|
|
|
await self._message_worker |
|
60
|
|
|
|
|
61
|
|
|
async def send_json(self, |
|
62
|
|
|
data: typing.Any, *, |
|
63
|
|
|
without_response: bool = False) -> typing.Tuple[typing.Any, typing.Optional[dict]]: |
|
64
|
|
|
if without_response: |
|
65
|
|
|
await self.ws_connect.send_str(self.json_serialize(data)) |
|
66
|
|
|
return None, None |
|
67
|
|
|
|
|
68
|
|
|
msg_ids = self._get_msg_ids_from_json(data) |
|
69
|
|
|
future = asyncio.Future() |
|
70
|
|
|
|
|
71
|
|
|
for msg_id in msg_ids: |
|
72
|
|
|
self._pending[msg_id] = future |
|
73
|
|
|
|
|
74
|
|
|
await self.ws_connect.send_str(self.json_serialize(data)) |
|
75
|
|
|
|
|
76
|
|
|
if not msg_ids: |
|
77
|
|
|
return None, None |
|
78
|
|
|
|
|
79
|
|
|
if self.timeout is not None: |
|
80
|
|
|
future = asyncio.wait_for(future, timeout=self.timeout) |
|
81
|
|
|
|
|
82
|
|
|
result = await future |
|
83
|
|
|
|
|
84
|
|
|
return result, None |
|
85
|
|
|
|
|
86
|
|
|
def clear_pending(self) -> None: |
|
87
|
|
|
self._pending = {} |
|
88
|
|
|
|
|
89
|
|
|
@staticmethod |
|
90
|
|
|
def _get_msg_ids_from_json(data: typing.Any) -> typing.Optional[list]: |
|
91
|
|
|
if not data: |
|
92
|
|
|
return [] |
|
93
|
|
|
|
|
94
|
|
|
if isinstance(data, dict) and data.get('id') is not None: |
|
95
|
|
|
return [data['id']] |
|
96
|
|
|
|
|
97
|
|
|
if isinstance(data, list): |
|
98
|
|
|
return [ |
|
99
|
|
|
item['id'] |
|
100
|
|
|
for item in data |
|
101
|
|
|
if item.get('id') is not None |
|
102
|
|
|
] |
|
103
|
|
|
|
|
104
|
|
|
return [] |
|
105
|
|
|
|
|
106
|
|
|
async def _handle_ws_messages(self) -> typing.NoReturn: |
|
107
|
|
|
while not self.ws_connect.closed: |
|
108
|
|
|
try: |
|
109
|
|
|
ws_msg = await self.ws_connect.receive() |
|
110
|
|
|
self._handle_ws_message(ws_msg) |
|
111
|
|
|
except asyncio.CancelledError as e: |
|
112
|
|
|
error = errors.ServerError(utils.get_exc_message(e)).with_traceback() |
|
113
|
|
|
self._notify_all_about_error(error) |
|
114
|
|
|
raise |
|
115
|
|
|
except Exception as e: |
|
116
|
|
|
logger.exception(e) |
|
117
|
|
|
|
|
118
|
|
|
def _handle_ws_message(self, ws_msg: aiohttp.WSMessage) -> None: |
|
119
|
|
|
if ws_msg.type != aiohttp.WSMsgType.text: |
|
120
|
|
|
return |
|
121
|
|
|
|
|
122
|
|
|
json_response = json.loads(ws_msg.data) |
|
123
|
|
|
|
|
124
|
|
|
if isinstance(json_response, dict) and 'id' in json_response: |
|
125
|
|
|
self._notify_about_result(json_response['id'], json_response) |
|
126
|
|
|
return |
|
127
|
|
|
|
|
128
|
|
|
if isinstance(json_response, list): |
|
129
|
|
|
self._notify_about_results( |
|
130
|
|
|
[ |
|
131
|
|
|
item['id'] |
|
132
|
|
|
for item in json_response |
|
133
|
|
|
if isinstance(item, dict) and 'id' in item |
|
134
|
|
|
], |
|
135
|
|
|
json_response, |
|
136
|
|
|
) |
|
137
|
|
|
|
|
138
|
|
|
def _notify_all_about_error(self, error: errors.JsonRpcError) -> None: |
|
139
|
|
|
for future in self._pending.values(): |
|
140
|
|
|
future.set_exception(error) |
|
141
|
|
|
|
|
142
|
|
|
self._pending = {} |
|
143
|
|
|
|
|
144
|
|
|
def _notify_about_result(self, msg_id: typing.Any, json_response: dict) -> None: |
|
145
|
|
|
future = self._pending.pop(msg_id, None) |
|
146
|
|
|
|
|
147
|
|
|
if future: |
|
148
|
|
|
future.set_result(json_response) |
|
149
|
|
|
|
|
150
|
|
|
def _notify_about_results(self, msg_ids: list, json_response: list) -> None: |
|
151
|
|
|
is_processed = False |
|
152
|
|
|
|
|
153
|
|
|
for msg_id in msg_ids: |
|
154
|
|
|
future = self._pending.pop(msg_id, None) |
|
155
|
|
|
|
|
156
|
|
|
if future and not is_processed: |
|
157
|
|
|
future.set_result(json_response) |
|
158
|
|
|
is_processed = True |
|
159
|
|
|
|
expert-m /
aiohttp-rpc
