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Copy pathstreaming.py
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135 lines (101 loc) · 3.61 KB
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# -*- coding: utf-8 -*-
"""
:authors: python273, hdk5
:license: Apache License, Version 2.0, see LICENSE file
:copyright: (c) 2019 python273
"""
from .exceptions import VkApiError
import websocket
import json
class VkStreaming(object):
""" Класс для работы с Streaming API
`Подробнее в документации VK API <https://vk.ru/dev/streaming_api_docs>`__.
:param vk: объект :class:`VkApi`
"""
__slots__ = ('vk', 'url', 'key', 'server')
URL_TEMPLATE = '{schema}://{server}/{method}?key={key}'
def __init__(self, vk):
self.vk = vk
self.url = None
self.key = None
self.server = None
self.update_streaming_server()
def update_streaming_server(self):
response = self.vk.method('streaming.getServerUrl')
self.key = response['key']
self.server = response['endpoint']
def get_rules(self):
""" Получить список добавленных правил """
response = self.vk.http.get(self.URL_TEMPLATE.format(
schema='https',
server=self.server,
method='rules',
key=self.key)
).json()
if response['code'] == 200:
return response['rules'] or []
elif response['code'] == 400:
raise VkStreamingError(response['error'])
def add_rule(self, value, tag):
""" Добавить правило
:param value: Строковое представление правила
:type value: str
:param tag: Тег правила
:type tag: str
"""
response = self.vk.http.post(self.URL_TEMPLATE.format(
schema='https',
server=self.server,
method='rules',
key=self.key),
json={'rule': {'value': value, 'tag': tag}}
).json()
if response['code'] == 200:
return True
elif response['code'] == 400:
raise VkStreamingError(response['error'])
def delete_rule(self, tag):
""" Удалить правило
:param tag: Тег правила
:type tag: str
"""
response = self.vk.http.delete(self.URL_TEMPLATE.format(
schema='https',
server=self.server,
method='rules',
key=self.key),
json={'tag': tag}
).json()
if response['code'] == 200:
return True
elif response['code'] == 400:
raise VkStreamingError(response['error'])
def delete_all_rules(self):
for item in self.get_rules():
self.delete_rule(item['tag'])
def listen(self):
""" Слушать сервер """
ws = websocket.create_connection(self.URL_TEMPLATE.format(
schema='wss',
server=self.server,
method='stream',
key=self.key
))
while True:
response = json.loads(ws.recv())
if response['code'] == 100:
yield response['event']
elif response['code'] == 300:
raise VkStreamingServiceMessage(response['service_message'])
class VkStreamingError(VkApiError):
def __init__(self, error):
self.error_code = error['error_code']
self.message = error['message']
def __str__(self):
return f'[{self.error_code}] {self.message}'
class VkStreamingServiceMessage(VkApiError):
def __init__(self, error):
self.service_code = error['service_code']
self.message = error['message']
def __str__(self):
return f'[{self.service_code}] {self.message}'