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Internal code restructure (no functional changes)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,23 +1,13 @@ | ||
| import sys | ||
|
|
||
| from .client import Client | ||
| from .middleware import WSGIApp, Middleware | ||
| from .server import Server | ||
| if sys.version_info >= (3, 5): # pragma: no cover | ||
| from .asyncio_server import AsyncServer | ||
| from .asyncio_client import AsyncClient | ||
| from .async_drivers.asgi import ASGIApp | ||
| try: | ||
| from .async_drivers.tornado import get_tornado_handler | ||
| except ImportError: | ||
| get_tornado_handler = None | ||
| else: # pragma: no cover | ||
| AsyncServer = None | ||
| AsyncClient = None | ||
| from .async_server import AsyncServer | ||
| from .async_client import AsyncClient | ||
| from .async_drivers.asgi import ASGIApp | ||
| try: | ||
| from .async_drivers.tornado import get_tornado_handler | ||
| except ImportError: # pragma: no cover | ||
| get_tornado_handler = None | ||
| ASGIApp = None | ||
|
|
||
| __all__ = ['Server', 'WSGIApp', 'Middleware', 'Client'] | ||
| if AsyncServer is not None: # pragma: no cover | ||
| __all__ += ['AsyncServer', 'ASGIApp', 'get_tornado_handler', | ||
| 'AsyncClient'] | ||
| __all__ = ['Server', 'WSGIApp', 'Middleware', 'Client', | ||
| 'AsyncServer', 'ASGIApp', 'get_tornado_handler', 'AsyncClient'] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| import logging | ||
| import time | ||
| import urllib | ||
| from . import packet | ||
|
|
||
| default_logger = logging.getLogger('engineio.client') | ||
| connected_clients = [] | ||
|
|
||
|
|
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| class BaseClient: | ||
| event_names = ['connect', 'disconnect', 'message'] | ||
|
|
||
| def __init__(self, logger=False, json=None, request_timeout=5, | ||
| http_session=None, ssl_verify=True, handle_sigint=True, | ||
| websocket_extra_options=None): | ||
| self.handlers = {} | ||
| self.base_url = None | ||
| self.transports = None | ||
| self.current_transport = None | ||
| self.sid = None | ||
| self.upgrades = None | ||
| self.ping_interval = None | ||
| self.ping_timeout = None | ||
| self.http = http_session | ||
| self.external_http = http_session is not None | ||
| self.handle_sigint = handle_sigint | ||
| self.ws = None | ||
| self.read_loop_task = None | ||
| self.write_loop_task = None | ||
| self.queue = None | ||
| self.state = 'disconnected' | ||
| self.ssl_verify = ssl_verify | ||
| self.websocket_extra_options = websocket_extra_options or {} | ||
|
|
||
| if json is not None: | ||
| packet.Packet.json = json | ||
| if not isinstance(logger, bool): | ||
| self.logger = logger | ||
| else: | ||
| self.logger = default_logger | ||
| if self.logger.level == logging.NOTSET: | ||
| if logger: | ||
| self.logger.setLevel(logging.INFO) | ||
| else: | ||
| self.logger.setLevel(logging.ERROR) | ||
| self.logger.addHandler(logging.StreamHandler()) | ||
|
|
||
| self.request_timeout = request_timeout | ||
|
|
||
| def is_asyncio_based(self): | ||
| return False | ||
|
|
||
| def on(self, event, handler=None): | ||
| """Register an event handler. | ||
| :param event: The event name. Can be ``'connect'``, ``'message'`` or | ||
| ``'disconnect'``. | ||
| :param handler: The function that should be invoked to handle the | ||
| event. When this parameter is not given, the method | ||
| acts as a decorator for the handler function. | ||
| Example usage:: | ||
| # as a decorator: | ||
| @eio.on('connect') | ||
| def connect_handler(): | ||
| print('Connection request') | ||
| # as a method: | ||
| def message_handler(msg): | ||
| print('Received message: ', msg) | ||
| eio.send('response') | ||
| eio.on('message', message_handler) | ||
| """ | ||
| if event not in self.event_names: | ||
| raise ValueError('Invalid event') | ||
|
|
||
| def set_handler(handler): | ||
| self.handlers[event] = handler | ||
| return handler | ||
|
|
||
| if handler is None: | ||
| return set_handler | ||
| set_handler(handler) | ||
|
|
||
| def transport(self): | ||
| """Return the name of the transport currently in use. | ||
| The possible values returned by this function are ``'polling'`` and | ||
| ``'websocket'``. | ||
| """ | ||
| return self.current_transport | ||
|
|
||
| def _reset(self): | ||
| self.state = 'disconnected' | ||
| self.sid = None | ||
|
|
||
| def _get_engineio_url(self, url, engineio_path, transport): | ||
| """Generate the Engine.IO connection URL.""" | ||
| engineio_path = engineio_path.strip('/') | ||
| parsed_url = urllib.parse.urlparse(url) | ||
|
|
||
| if transport == 'polling': | ||
| scheme = 'http' | ||
| elif transport == 'websocket': | ||
| scheme = 'ws' | ||
| else: # pragma: no cover | ||
| raise ValueError('invalid transport') | ||
| if parsed_url.scheme in ['https', 'wss']: | ||
| scheme += 's' | ||
|
|
||
| return ('{scheme}://{netloc}/{path}/?{query}' | ||
| '{sep}transport={transport}&EIO=4').format( | ||
| scheme=scheme, netloc=parsed_url.netloc, | ||
| path=engineio_path, query=parsed_url.query, | ||
| sep='&' if parsed_url.query else '', | ||
| transport=transport) | ||
|
|
||
| def _get_url_timestamp(self): | ||
| """Generate the Engine.IO query string timestamp.""" | ||
| return '&t=' + str(time.time()) |
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