openstack/deb-python-websocket-client
Code Issues Proposed changes

refactoring. logger and some pep8.

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This commit is contained in:
Hiroki Ohtani
2015-03-16 12:23:16 +09:00
parent b68d84e3d1
commit 02b573bf5e
1 changed files with 36 additions and 26 deletions
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60
websocket/_app.py
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@@ -29,12 +29,13 @@ import traceback
import sys import sys
import select import select
import six import six
import logging
from ._core import WebSocket, getdefaulttimeout, logger from ._core import WebSocket, getdefaulttimeout
from ._exceptions import * from ._exceptions import *
from ._logging import *
from websocket._abnf import ABNF from websocket._abnf import ABNF
class WebSocketApp(object): class WebSocketApp(object):
""" """
Higher level of APIs are provided. Higher level of APIs are provided.
@@ -61,15 +62,17 @@ class WebSocketApp(object):
The passing 2nd arugment is exception object. The passing 2nd arugment is exception object.
on_close: callable object which is called when closed the connection. on_close: callable object which is called when closed the connection.
this function has one argument. The arugment is this class object. this function has one argument. The arugment is this class object.
on_cont_message: callback object which is called when recieve continued frame data. on_cont_message: callback object which is called when recieve continued
frame data.
on_message has 3 arguments. on_message has 3 arguments.
The 1st arugment is this class object. The 1st arugment is this class object.
The passing 2nd arugment is utf-8 string which we get from the server. The passing 2nd arugment is utf-8 string which we get from the server.
The 3rd arugment is continue flag. if 0, the data continue to next frame data The 3rd arugment is continue flag. if 0, the data continue
keep_running: a boolean flag indicating whether the app's main loop should to next frame data
keep running, defaults to True keep_running: a boolean flag indicating whether the app's main loop
get_mask_key: a callable to produce new mask keys, see the WebSocket.set_mask_key's should keep running, defaults to True
docstring for more information get_mask_key: a callable to produce new mask keys,
see the WebSocket.set_mask_key's docstring for more information
subprotocols: array of available sub protocols. default is None. subprotocols: array of available sub protocols. default is None.
""" """
self.url = url self.url = url
@@ -86,12 +89,13 @@ class WebSocketApp(object):
self.get_mask_key = get_mask_key self.get_mask_key = get_mask_key
self.sock = None self.sock = None
self.last_ping_tm = 0 self.last_ping_tm = 0
self.subprotocols =subprotocols self.subprotocols = subprotocols
def send(self, data, opcode=ABNF.OPCODE_TEXT): def send(self, data, opcode=ABNF.OPCODE_TEXT):
""" """
send message. send message.
data: message to send. If you set opcode to OPCODE_TEXT, data must be utf-8 string or unicode. data: message to send. If you set opcode to OPCODE_TEXT,
data must be utf-8 string or unicode.
opcode: operation code of data. default is OPCODE_TEXT. opcode: operation code of data. default is OPCODE_TEXT.
""" """
@@ -112,16 +116,20 @@ class WebSocketApp(object):
if self.sock: if self.sock:
self.sock.ping() self.sock.ping()
def run_forever(self, sockopt=None, sslopt=None, ping_interval=0, ping_timeout=None, def run_forever(self, sockopt=None, sslopt=None,
http_proxy_host=None, http_proxy_port=None, http_no_proxy=None, http_proxy_auth=None, ping_interval=0, ping_timeout=None,
skip_utf8_validation=False): http_proxy_host=None, http_proxy_port=None,
http_no_proxy=None, http_proxy_auth=None,
skip_utf8_validation=False):
""" """
run event loop for WebSocket framework. run event loop for WebSocket framework.
This loop is infinite loop and is alive during websocket is available. This loop is infinite loop and is alive during websocket is available.
sockopt: values for socket.setsockopt. sockopt: values for socket.setsockopt.
sockopt must be tuple and each element is argument of sock.setscokopt. sockopt must be tuple
and each element is argument of sock.setscokopt.
sslopt: ssl socket optional dict. sslopt: ssl socket optional dict.
ping_interval: automatically send "ping" command every specified period(second) ping_interval: automatically send "ping" command
every specified period(second)
if set to 0, not send automatically. if set to 0, not send automatically.
ping_timeout: timeout(second) if the pong message is not recieved. ping_timeout: timeout(second) if the pong message is not recieved.
http_proxy_host: http proxy host name. http_proxy_host: http proxy host name.
@@ -130,7 +138,7 @@ class WebSocketApp(object):
skip_utf8_validation: skip utf8 validation. skip_utf8_validation: skip utf8 validation.
""" """
if not ping_timeout or ping_timeout<=0: if not ping_timeout or ping_timeout <= 0:
ping_timeout = None ping_timeout = None
if sockopt is None: if sockopt is None:
sockopt = [] sockopt = []
@@ -142,18 +150,20 @@ class WebSocketApp(object):
close_frame = None close_frame = None
try: try:
self.sock = WebSocket(self.get_mask_key, sockopt=sockopt, sslopt=sslopt, self.sock = WebSocket(self.get_mask_key,
sockopt=sockopt, sslopt=sslopt,
fire_cont_frame=self.on_cont_message and True or False, fire_cont_frame=self.on_cont_message and True or False,
skip_utf8_validation=skip_utf8_validation) skip_utf8_validation=skip_utf8_validation)
self.sock.settimeout(getdefaulttimeout()) self.sock.settimeout(getdefaulttimeout())
self.sock.connect(self.url, header=self.header, cookie=self.cookie, self.sock.connect(self.url, header=self.header, cookie=self.cookie,
http_proxy_host=http_proxy_host, http_proxy_port=http_proxy_port, http_proxy_host=http_proxy_host,
http_proxy_port=http_proxy_port,
http_no_proxy=http_no_proxy, http_proxy_auth=http_proxy_auth, http_no_proxy=http_no_proxy, http_proxy_auth=http_proxy_auth,
subprotocols=self.subprotocols) subprotocols=self.subprotocols)
self._callback(self.on_open) self._callback(self.on_open)
if ping_interval: if ping_interval:
event = threading.Event() event = threading.Event()
thread = threading.Thread(target=self._send_ping, args=(ping_interval, event)) thread = threading.Thread(target=self._send_ping, args=(ping_interval, event))
thread.setDaemon(True) thread.setDaemon(True)
thread.start() thread.start()
@@ -194,7 +204,7 @@ class WebSocketApp(object):
*self._get_close_args(close_frame.data if close_frame else None)) *self._get_close_args(close_frame.data if close_frame else None))
self.sock = None self.sock = None
def _get_close_args(self,data): def _get_close_args(self, data):
""" this functions extracts the code, reason from the close body """ this functions extracts the code, reason from the close body
if they exists, and if the self.on_close except three arguments """ if they exists, and if the self.on_close except three arguments """
import inspect import inspect
@@ -202,19 +212,19 @@ class WebSocketApp(object):
if not self.on_close or len(inspect.getargspec(self.on_close).args) != 3: if not self.on_close or len(inspect.getargspec(self.on_close).args) != 3:
return [] return []
if data and len(data) >=2: if data and len(data) >= 2:
code = 256*six.byte2int(data[0:1]) + six.byte2int(data[1:2]) code = 256*six.byte2int(data[0:1]) + six.byte2int(data[1:2])
reason = data[2:].decode('utf-8') reason = data[2:].decode('utf-8')
return [code,reason] return [code, reason]
return [None,None] return [None, None]
def _callback(self, callback, *args): def _callback(self, callback, *args):
if callback: if callback:
try: try:
callback(self, *args) callback(self, *args)
except Exception as e: except Exception as e:
logger.error(e) error(e)
if logger.isEnabledFor(logging.DEBUG): if isEnableForDebug():
_, _, tb = sys.exc_info() _, _, tb = sys.exc_info()
traceback.print_tb(tb) traceback.print_tb(tb)