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websocket.py
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import js
import json
import orjson
import sys
from asyncio import sleep
from typing import AsyncIterator, Callable, Union, Any
from functools import lru_cache
# code = 1000
# protocols = "protocols"
# reason = "reason"
class SenzaSocket:
CONNECTING: int = 0
CONNECTED: int = 1
CLOSING: int = 2
CLOSED: int = 3
def __init__(self, url: str):
self._state = self.CONNECTING
self._ws = js.WebSocket.new(url)
self._messages: list[str | dict | bytes] = []
self._ws.onmessage = self.on_message
self._ws.onopen = self.on_open
self._ws.onclose = self.on_close
self._ws.onerror = self.on_error
self._recurse_limit=sys.getrecursionlimit()
async def aconnect(self):
depth:int = 1
try:
assert self._ws.readyState == self.CONNECTED
self.state = self.CONNECTED
return True
except AssertionError:
if depth < 100:
await sleep(0.005)
if depth > 100:
await sleep(0.01)
if depth > 350:
await sleep(0.04)
if depth > 600:
await sleep(0.1)
if depth > 900:
await sleep(0.5)
if depth == self._recurse_limit:
return None
await self.aconnect()
async def close(self, code: int = 1000, reason: str | None = None) -> None:
self._ws.close(code, reason)
self.state = self.CLOSING
async def receive(self, event, message) -> None:
self._messages.append(message)
# ------------------------------------
@property
def state(self) -> int:
return self._state
@state.setter
def state(self, status: int) -> None:
self._state = status
# -------------------------------------
async def on_open(self, event) -> None:
try:
print(event.type)
self.state = self.CONNECTED
except Exception as err:
print(err)
async def on_message(self, event) -> None:
try:
await self.receive(event.type, event.data)
except Exception as err:
print(err)
async def on_close(self, event) -> None:
try:
print(event.type)
except Exception as err:
print(err)
async def on_error(self, event) -> None:
try:
print(event.type)
except Exception as err:
print(err)
# ------------------------------------
async def send_text(self, text: str) -> None:
try:
if isinstance(text, str):
self._ws.send(text)
else:
raise TypeError
except TypeError as err:
print(err)
async def send_json(self, data: dict) -> None:
try:
if isinstance(data, dict):
self._ws.send(json.dumps(data))
else:
raise TypeError
except TypeError as err:
print(err)
async def send_bytes(self, data):
try:
buffer = js.Uint8Array.new(len(data))
for pos, b in enumerate(data):
buffer[pos] = b
self._ws.send(buffer)
except Exception as err:
print(err)
# ------------------------------------
async def receive_text(self) -> str:
depth:int = 1
try:
assert len(self._messages)
except AssertionError:
await sleep(0.05)
return await self.receive_text()
try:
assert type(self._messages[-1]) is str
return self._messages.pop()
except AssertionError:
return "type error"
except IndexError as err:
if depth < 100:
await sleep(0.005)
if depth > 100:
await sleep(0.01)
if depth > 350:
await sleep(0.04)
if depth > 600:
await sleep(0.1)
if depth > 900:
await sleep(0.5)
if depth == self._recurse_limit:
return ""
return await self.receive_text()
async def iter_text(self) -> AsyncIterator[str]:
try:
while True:
yield await self.receive_text()
except Exception as err:
print("iter_text: ", err)
# ----------------------------------
async def receive_json(self) -> list[Any] | dict[Any, Any] | None:
depth:int = 1
try:
assert len(self._messages)
except AssertionError:
await sleep(0.05)
return await self.receive_json()
try:
mess = orjson.loads(self._messages[-1])
assert type(mess) is dict or type(mess) is list
self._messages.pop()
return mess
except AssertionError:
print(f"type error {type(self._messages[-1])}")
except IndexError as err:
if depth < 100:
await sleep(0.005)
if depth > 100:
await sleep(0.01)
if depth > 350:
await sleep(0.04)
if depth > 600:
await sleep(0.1)
if depth > 900:
await sleep(0.5)
if depth == self._recurse_limit:
return {}
return await self.receive_json()
except Exception as err:
print(err)
async def iter_json(self) -> AsyncIterator[dict[Any, Any] | list[dict[Any, Any]]]:
try:
while True:
yield await self.receive_json()
except Exception as err:
print(err)
# ---
async def receive_bytes(self) -> bytes | None:
depth:int = 1
try:
assert len(self._messages)
except AssertionError:
await sleep(0.05)
await self.receive_bytes()
try:
# assert type(self._messages[-1]) == object
return self._messages.pop()
except AssertionError:
print("assert error", str(self._messages[-1]))
print(f"type error, receive is {type(self._messages[-1])}")
except IndexError as err:
if depth < 100:
await sleep(0.005)
if depth > 100:
await sleep(0.01)
if depth > 350:
await sleep(0.04)
if depth > 600:
await sleep(0.1)
if depth > 900:
await sleep(0.5)
if depth == self._recurse_limit:
return b""
await self.receive_bytes()
async def iter_bytes(self) -> AsyncIterator:
try:
while True:
yield await self.receive_bytes()
except Exception as err:
print("iter ", err)