本文整理汇总了Python中ws4py.streaming.Stream.close方法的典型用法代码示例。如果您正苦于以下问题:Python Stream.close方法的具体用法?Python Stream.close怎么用?Python Stream.close使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ws4py.streaming.Stream
的用法示例。
在下文中一共展示了Stream.close方法的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: WebSocket
# 需要导入模块: from ws4py.streaming import Stream [as 别名]
# 或者: from ws4py.streaming.Stream import close [as 别名]
class WebSocket(object):
""" Represents a websocket endpoint and provides a high level interface to drive the endpoint. """
def __init__(self, sock, protocols=None, extensions=None, environ=None, heartbeat_freq=None):
""" The ``sock`` is an opened connection
resulting from the websocket handshake.
If ``protocols`` is provided, it is a list of protocols
negotiated during the handshake as is ``extensions``.
If ``environ`` is provided, it is a copy of the WSGI environ
dictionnary from the underlying WSGI server.
"""
self.stream = Stream(always_mask=False)
"""
Underlying websocket stream that performs the websocket
parsing to high level objects. By default this stream
never masks its messages. Clients using this class should
set the ``stream.always_mask`` fields to ``True``
and ``stream.expect_masking`` fields to ``False``.
"""
self.protocols = protocols
"""
List of protocols supported by this endpoint.
Unused for now.
"""
self.extensions = extensions
"""
List of extensions supported by this endpoint.
Unused for now.
"""
self.sock = sock
"""
Underlying connection.
"""
self.client_terminated = False
"""
Indicates if the client has been marked as terminated.
"""
self.server_terminated = False
"""
Indicates if the server has been marked as terminated.
"""
self.reading_buffer_size = DEFAULT_READING_SIZE
"""
Current connection reading buffer size.
"""
self.environ = environ
"""
WSGI environ dictionary.
"""
self.heartbeat_freq = heartbeat_freq
"""
At which interval the heartbeat will be running.
Set this to `0` or `None` to disable it entirely.
"""
self._local_address = None
self._peer_address = None
@property
def local_address(self):
"""
Local endpoint address as a tuple
"""
if not self._local_address:
self._local_address = self.sock.getsockname()
if len(self._local_address) == 4:
self._local_address = self._local_address[:2]
return self._local_address
@property
def peer_address(self):
"""
Peer endpoint address as a tuple
"""
if not self._peer_address:
self._peer_address = self.sock.getpeername()
if len(self._peer_address) == 4:
self._peer_address = self._peer_address[:2]
return self._peer_address
def opened(self):
"""
Called by the server when the upgrade handshake
has succeeeded.
"""
pass
def close(self, code=1000, reason=''):
"""
#.........这里部分代码省略.........
示例2: WebSocketHandler
# 需要导入模块: from ws4py.streaming import Stream [as 别名]
# 或者: from ws4py.streaming.Stream import close [as 别名]
class WebSocketHandler(object):
def __init__(self, sock, protocols, extensions):
"""
A handler appropriate for servers. This handler
runs the connection's read and parsing in a thread,
meaning that incoming messages will be alerted in a different
thread from the one that created the handler.
@param sock: opened connection after the websocket upgrade
@param protocols: list of protocols from the handshake
@param extensions: list of extensions from the handshake
"""
self.stream = Stream()
self.protocols = protocols
self.extensions = extensions
self.sock = sock
self.sock.settimeout(30.0)
self.client_terminated = False
self.server_terminated = False
self._th = threading.Thread(target=self._receive)
def opened(self):
"""
Called by the server when the upgrade handshake
has succeeeded. Starts the internal loop that
reads bytes from the connection and hands it over
to the stream for parsing.
"""
self._th.start()
def close(self, code=1000, reason=''):
"""
Call this method to initiate the websocket connection
closing by sending a close frame to the connected peer.
Once this method is called, the server_terminated
attribute is set. Calling this method several times is
safe as the closing frame will be sent only the first
time.
@param code: status code describing why the connection is closed
@param reason: a human readable message describing why the connection is closed
"""
if not self.server_terminated:
self.server_terminated = True
self.write_to_connection(self.stream.close(code=code, reason=reason))
def closed(self, code, reason=None):
"""
Called by the server when the websocket connection
is finally closed.
@param code: status code
@param reason: human readable message of the closing exchange
"""
pass
@property
def terminated(self):
"""
Returns True if both the client and server have been
marked as terminated.
"""
return self.client_terminated is True and self.server_terminated is True
def write_to_connection(self, bytes):
"""
Writes the provided bytes to the underlying connection.
@param bytes: data tio send out
"""
return self.sock.sendall(bytes)
def read_from_connection(self, amount):
"""
Reads bytes from the underlying connection.
@param amount: quantity to read (if possible)
"""
return self.sock.recv(amount)
def close_connection(self):
"""
Shutdowns then closes the underlying connection.
"""
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
def ponged(self, pong):
"""
Pong message received on the stream.
@param pong: messaging.PongControlMessage instance
#.........这里部分代码省略.........
示例3: WebSocketBaseClient
# 需要导入模块: from ws4py.streaming import Stream [as 别名]
# 或者: from ws4py.streaming.Stream import close [as 别名]
class WebSocketBaseClient(object):
def __init__(self, url, protocols=None, version='8'):
self.stream = Stream()
self.url = url
self.protocols = protocols
self.version = version
self.key = b64encode(os.urandom(16))
self.client_terminated = False
self.server_terminated = False
@property
def handshake_headers(self):
parts = urlsplit(self.url)
host = parts.netloc
if ':' in host:
host, port = parts.netloc.split(':')
headers = [
('Host', host),
('Connection', 'Upgrade'),
('Upgrade', 'websocket'),
('Sec-WebSocket-Key', self.key),
('Sec-WebSocket-Origin', self.url),
('Sec-WebSocket-Version', self.version)
]
if self.protocols:
headers.append(('Sec-WebSocket-Protocol', ','.join(self.protocols)))
return headers
@property
def handshake_request(self):
parts = urlsplit(self.url)
headers = self.handshake_headers
request = ["GET %s HTTP/1.1" % parts.path]
for header, value in headers:
request.append("%s: %s" % (header, value))
request.append('\r\n')
return '\r\n'.join(request)
def process_response_line(self, response_line):
protocol, code, status = response_line.split(' ', 2)
if code != '101':
raise HandshakeError("Invalid response status: %s %s" % (code, status))
def process_handshake_header(self, headers):
protocols = []
extensions = []
headers = headers.strip()
for header_line in headers.split('\r\n'):
header, value = header_line.split(':', 1)
header = header.strip().lower()
value = value.strip().lower()
if header == 'upgrade' and value != 'websocket':
raise HandshakeError("Invalid Upgrade header: %s" % value)
elif header == 'connection' and value != 'upgrade':
raise HandshakeError("Invalid Connection header: %s" % value)
elif header == 'sec-websocket-accept':
match = b64encode(sha1(self.key + WS_KEY).digest())
if value != match.lower():
raise HandshakeError("Invalid challenge response: %s" % value)
elif header == 'sec-websocket-protocol':
protocols = ','.join(value)
elif header == 'sec-websocket-extensions':
extensions = ','.join(value)
return protocols, extensions
def opened(self, protocols, extensions):
pass
def received_message(self, m):
pass
def closed(self, code, reason=None):
pass
@property
def terminated(self):
return self.client_terminated is True and self.server_terminated is True
def close(self, reason='', code=1000):
if not self.client_terminated:
self.client_terminated = True
self.write_to_connection(self.stream.close(code=code, reason=reason))
def connect(self):
raise NotImplemented()
def write_to_connection(self, bytes):
#.........这里部分代码省略.........
示例4: WebSocket
# 需要导入模块: from ws4py.streaming import Stream [as 别名]
# 或者: from ws4py.streaming.Stream import close [as 别名]
class WebSocket(object):
def __init__(self, handshake_reply, protocols=None):
self.stream = Stream(always_mask=False)
self.handshake_reply = handshake_reply
self.handshake_sent = False
self.protocols = protocols
self.client_terminated = False
self.server_terminated = False
self.reading_buffer_size = DEFAULT_READING_SIZE
def init(self, sender):
# This was initially a loop that used callbacks in ws4py
# Here it was turned into a generator, the callback replaced by yield
self.sender = sender
self.sender(self.handshake_reply)
self.handshake_sent = True
def send(self, payload, binary=False):
"""
Sends the given ``payload`` out.
If ``payload`` is some bytes or a bytearray,
then it is sent as a single message not fragmented.
If ``payload`` is a generator, each chunk is sent as part of
fragmented message.
If ``binary`` is set, handles the payload as a binary message.
"""
message_sender = self.stream.binary_message if binary else self.stream.text_message
if isinstance(payload, basestring) or isinstance(payload, bytearray):
self.sender(message_sender(payload).single(mask=self.stream.always_mask))
elif isinstance(payload, Message):
self.sender(payload.single(mask=self.stream.always_mask))
elif type(payload) == types.GeneratorType:
bytes = payload.next()
first = True
for chunk in payload:
self.sender(message_sender(bytes).fragment(first=first, mask=self.stream.always_mask))
bytes = chunk
first = False
self.sender(message_sender(bytes).fragment(last=True, mask=self.stream.always_mask))
else:
raise ValueError("Unsupported type '%s' passed to send()" % type(payload))
def dataReceived(self, data):
"""
Performs the operation of reading from the underlying
connection in order to feed the stream of bytes.
We start with a small size of two bytes to be read
from the connection so that we can quickly parse an
incoming frame header. Then the stream indicates
whatever size must be read from the connection since
it knows the frame payload length.
Note that we perform some automatic operations:
* On a closing message, we respond with a closing
message and finally close the connection
* We respond to pings with pong messages.
* Whenever an error is raised by the stream parsing,
we initiate the closing of the connection with the
appropiate error code.
"""
s = self.stream
self.reading_buffer_size = s.parser.send(data) or DEFAULT_READING_SIZE
if s.closing is not None:
if not self.server_terminated:
self.close(s.closing.code, s.closing.reason)
else:
self.client_terminated = True
return None
if s.errors:
for error in s.errors:
self.close(error.code, error.reason)
s.errors = []
return None
if s.has_message:
msg = s.message
return msg
s.message = None
else:
if s.pings:
for ping in s.pings:
self.sender(s.pong(ping.data))
s.pings = []
if s.pongs:
s.pongs = []
#.........这里部分代码省略.........
示例5: WebSocket
# 需要导入模块: from ws4py.streaming import Stream [as 别名]
# 或者: from ws4py.streaming.Stream import close [as 别名]
class WebSocket(object):
def __init__(self, sock, environ, protocols=None, extensions=None):
self.stream = Stream()
self.protocols = protocols
self.extensions = extensions
self.environ = environ
self.sock = sock
self.sock.settimeout(30.0)
self.client_terminated = False
self.server_terminated = False
self._lock = Semaphore()
def close(self, code=1000, reason=''):
"""
Call this method to initiate the websocket connection
closing by sending a close frame to the connected peer.
Once this method is called, the server_terminated
attribute is set. Calling this method several times is
safe as the closing frame will be sent only the first
time.
@param code: status code describing why the connection is closed
@param reason: a human readable message describing why the connection is closed
"""
if not self.server_terminated:
self.server_terminated = True
self.write_to_connection(self.stream.close(code=code, reason=reason))
self.close_connection()
@property
def terminated(self):
"""
Returns True if both the client and server have been
marked as terminated.
"""
return self.client_terminated is True and self.server_terminated is True
def write_to_connection(self, bytes):
"""
Writes the provided bytes to the underlying connection.
@param bytes: data tio send out
"""
return self.sock.sendall(bytes)
def read_from_connection(self, amount):
"""
Reads bytes from the underlying connection.
@param amount: quantity to read (if possible)
"""
return self.sock.recv(amount)
def close_connection(self):
"""
Shutdowns then closes the underlying connection.
"""
try:
self.sock.shutdown(socket.SHUT_RDWR)
finally:
self.sock.close()
def send(self, payload, binary=False):
"""
Sends the given payload out.
If payload is some bytes or a bytearray,
then it is sent as a single message not fragmented.
If payload is a generator, each chunk is sent as part of
fragmented message.
@param payload: string, bytes, bytearray or a generator
@param binary: if set, handles the payload as a binary message
"""
if isinstance(payload, basestring) or isinstance(payload, bytearray):
if not binary:
self.write_to_connection(self.stream.text_message(payload).single())
else:
self.write_to_connection(self.stream.binary_message(payload).single())
elif type(payload) == types.GeneratorType:
bytes = payload.next()
first = True
for chunk in payload:
if not binary:
self.write_to_connection(self.stream.text_message(bytes).fragment(first=first))
else:
self.write_to_connection(self.stream.binary_message(payload).fragment(first=first))
bytes = chunk
first = False
if not binary:
self.write_to_connection(self.stream.text_message(bytes).fragment(last=True))
else:
self.write_to_connection(self.stream.text_message(bytes).fragment(last=True))
#.........这里部分代码省略.........