python类error()的实例源码

iotcommon.py 文件源码 项目:IotCenter 作者: panjanek 项目源码 文件源码 阅读 33 收藏 0 点赞 0 评论 0
def handle(self):
        try:
            data = self.request[0]
            clientAddr = self.client_address;
            self.logger.debug("UDP packet from {0}:{1}, length {2}".format(clientAddr[0], clientAddr[1], len(data)))
            self.logger.debug("message hex   : %s", binascii.hexlify(data))
            if data[0:4] == "IOT\xff":    
                self.logger.debug("heartbeat packet - ignoring")      
            elif data[0:4] == "IOT\0" and len(data)>=88 and ((len(data)-72)%16) == 0:    
                self.handleIotPacket(data, clientAddr)        
            else:
                self.logger.warning("unknown packet - ignoring")      
        except Exception as e: 
            self.logger.exception(e)
        except:   
            self.logger.error("error on handling incomming packet: {0} ".format(sys.exc_info()[0]))
pyopenssl.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 25 收藏 0 点赞 0 评论 0
def recv(self, *args, **kwargs):
        try:
            data = self.connection.recv(*args, **kwargs)
        except OpenSSL.SSL.SysCallError as e:
            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
                return b''
            else:
                raise SocketError(str(e))
        except OpenSSL.SSL.ZeroReturnError as e:
            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
                return b''
            else:
                raise
        except OpenSSL.SSL.WantReadError:
            rd = util.wait_for_read(self.socket, self.socket.gettimeout())
            if not rd:
                raise timeout('The read operation timed out')
            else:
                return self.recv(*args, **kwargs)
        else:
            return data
pyopenssl.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 27 收藏 0 点赞 0 评论 0
def recv_into(self, *args, **kwargs):
        try:
            return self.connection.recv_into(*args, **kwargs)
        except OpenSSL.SSL.SysCallError as e:
            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
                return 0
            else:
                raise SocketError(str(e))
        except OpenSSL.SSL.ZeroReturnError as e:
            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
                return 0
            else:
                raise
        except OpenSSL.SSL.WantReadError:
            rd = util.wait_for_read(self.socket, self.socket.gettimeout())
            if not rd:
                raise timeout('The read operation timed out')
            else:
                return self.recv_into(*args, **kwargs)
selectors.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 21 收藏 0 点赞 0 评论 0
def unregister(self, fileobj):
        """ Unregister a file object from being monitored. """
        try:
            key = self._fd_to_key.pop(self._fileobj_lookup(fileobj))
        except KeyError:
            raise KeyError("{0!r} is not registered".format(fileobj))

        # Getting the fileno of a closed socket on Windows errors with EBADF.
        except socket.error as e:  # Platform-specific: Windows.
            if e.errno != errno.EBADF:
                raise
            else:
                for key in self._fd_to_key.values():
                    if key.fileobj is fileobj:
                        self._fd_to_key.pop(key.fd)
                        break
                else:
                    raise KeyError("{0!r} is not registered".format(fileobj))
        return key
pyopenssl.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 24 收藏 0 点赞 0 评论 0
def recv(self, *args, **kwargs):
        try:
            data = self.connection.recv(*args, **kwargs)
        except OpenSSL.SSL.SysCallError as e:
            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
                return b''
            else:
                raise SocketError(str(e))
        except OpenSSL.SSL.ZeroReturnError as e:
            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
                return b''
            else:
                raise
        except OpenSSL.SSL.WantReadError:
            rd, wd, ed = select.select(
                [self.socket], [], [], self.socket.gettimeout())
            if not rd:
                raise timeout('The read operation timed out')
            else:
                return self.recv(*args, **kwargs)
        else:
            return data
pyopenssl.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 27 收藏 0 点赞 0 评论 0
def recv_into(self, *args, **kwargs):
        try:
            return self.connection.recv_into(*args, **kwargs)
        except OpenSSL.SSL.SysCallError as e:
            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
                return 0
            else:
                raise SocketError(str(e))
        except OpenSSL.SSL.ZeroReturnError as e:
            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
                return 0
            else:
                raise
        except OpenSSL.SSL.WantReadError:
            rd, wd, ed = select.select(
                [self.socket], [], [], self.socket.gettimeout())
            if not rd:
                raise timeout('The read operation timed out')
            else:
                return self.recv_into(*args, **kwargs)
utils.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 21 收藏 0 点赞 0 评论 0
def is_valid_cidr(string_network):
    """
    Very simple check of the cidr format in no_proxy variable.

    :rtype: bool
    """
    if string_network.count('/') == 1:
        try:
            mask = int(string_network.split('/')[1])
        except ValueError:
            return False

        if mask < 1 or mask > 32:
            return False

        try:
            socket.inet_aton(string_network.split('/')[0])
        except socket.error:
            return False
    else:
        return False
    return True
utils.py 文件源码 项目:my-first-blog 作者: AnkurBegining 项目源码 文件源码 阅读 23 收藏 0 点赞 0 评论 0
def is_valid_cidr(string_network):
    """
    Very simple check of the cidr format in no_proxy variable.

    :rtype: bool
    """
    if string_network.count('/') == 1:
        try:
            mask = int(string_network.split('/')[1])
        except ValueError:
            return False

        if mask < 1 or mask > 32:
            return False

        try:
            socket.inet_aton(string_network.split('/')[0])
        except socket.error:
            return False
    else:
        return False
    return True
client.py 文件源码 项目:tornetcd 作者: mqingyn 项目源码 文件源码 阅读 21 收藏 0 点赞 0 评论 0
def search_machine(self, callback=None):
        uri = self._base_url + self.version_prefix + '/machines'
        req = HTTPRequest(uri, self._MGET, request_timeout=self.read_timeout,
                          follow_redirects=self.allow_redirect, )
        response_future = self.http.fetch(req, callback=lambda result: result)

        def _callback(fut):
            exc = fut.exc_info()
            if exc:
                if not isinstance(exc[1], etcdexcept.EtcdException):
                    # We can't get the list of machines, if one server is in the
                    # machines cache, try on it
                    _log.error("Failed to get list of machines from %s%s: %r and retry it.",
                               uri, self.version_prefix, exc)
                    if self._machines_cache:
                        self._base_url = self._machines_cache.pop(0)
                        _log.debug("Retrying on %s", self._base_url)
                        # Call myself
                        self.ioloop.add_future(self.search_machine(), _callback)
                        return
                    else:
                        raise etcdexcept.EtcdException("Could not get the list of servers, "
                                                       "maybe you provided the wrong "
                                                       "host(s) to connect to?")
            else:
                response = fut.result()
                machines = [
                    node.strip() for node in
                    self._handle_server_response(response).body.decode('utf-8').split(',')
                    ]
                _log.debug("Retrieved list of machines: %s", machines)
                self._machines_cache = machines
                if self._base_url not in self._machines_cache:
                    self._base_url = self._choice_machine()
            callback(fut.result())

        self.ioloop.add_future(response_future, _callback)
client.py 文件源码 项目:tornetcd 作者: mqingyn 项目源码 文件源码 阅读 24 收藏 0 点赞 0 评论 0
def _check_cluster_id(self, response):
        cluster_id = response.headers.get("x-etcd-cluster-id")
        if not cluster_id:
            _log.warning("etcd response did not contain a cluster ID")
            return
        id_changed = (self.expected_cluster_id and
                      cluster_id != self.expected_cluster_id)
        # Update the ID so we only raise the exception once.
        old_expected_cluster_id = self.expected_cluster_id
        self.expected_cluster_id = cluster_id
        if id_changed:
            # Defensive: clear the pool so that we connect afresh next
            # time.
            self._base_url = self._choice_machine()
            _log.error(
                    'The UUID of the cluster changed from {} to '
                    '{}.'.format(old_expected_cluster_id, cluster_id))
connection.py 文件源码 项目:gimel 作者: Alephbet 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def send_packed_command(self, command):
        "Send an already packed command to the Redis server"
        if not self._sock:
            self.connect()
        try:
            if isinstance(command, str):
                command = [command]
            for item in command:
                self._sock.sendall(item)
        except socket.timeout:
            self.disconnect()
            raise TimeoutError("Timeout writing to socket")
        except socket.error:
            e = sys.exc_info()[1]
            self.disconnect()
            if len(e.args) == 1:
                errno, errmsg = 'UNKNOWN', e.args[0]
            else:
                errno = e.args[0]
                errmsg = e.args[1]
            raise ConnectionError("Error %s while writing to socket. %s." %
                                  (errno, errmsg))
        except:
            self.disconnect()
            raise
SocketServer.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 31 收藏 0 点赞 0 评论 0
def _handle_request_noblock(self):
        """Handle one request, without blocking.

        I assume that select.select has returned that the socket is
        readable before this function was called, so there should be
        no risk of blocking in get_request().
        """
        try:
            request, client_address = self.get_request()
        except socket.error:
            return
        if self.verify_request(request, client_address):
            try:
                self.process_request(request, client_address)
            except:
                self.handle_error(request, client_address)
                self.shutdown_request(request)
SocketServer.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 26 收藏 0 点赞 0 评论 0
def shutdown_request(self, request):
        """Called to shutdown and close an individual request."""
        try:
            #explicitly shutdown.  socket.close() merely releases
            #the socket and waits for GC to perform the actual close.
            request.shutdown(socket.SHUT_WR)
        except socket.error:
            pass #some platforms may raise ENOTCONN here
        self.close_request(request)
imaplib.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def xatom(self, name, *args):
        """Allow simple extension commands
                notified by server in CAPABILITY response.

        Assumes command is legal in current state.

        (typ, [data]) = <instance>.xatom(name, arg, ...)

        Returns response appropriate to extension command `name'.
        """
        name = name.upper()
        #if not name in self.capabilities:      # Let the server decide!
        #    raise self.error('unknown extension command: %s' % name)
        if not name in Commands:
            Commands[name] = (self.state,)
        return self._simple_command(name, *args)



    #       Private methods
imaplib.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 31 收藏 0 点赞 0 评论 0
def _get_line(self):

        line = self.readline()
        if not line:
            raise self.abort('socket error: EOF')

        # Protocol mandates all lines terminated by CRLF
        if not line.endswith('\r\n'):
            raise self.abort('socket error: unterminated line')

        line = line[:-2]
        if __debug__:
            if self.debug >= 4:
                self._mesg('< %s' % line)
            else:
                self._log('< %s' % line)
        return line
smtplib.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 32 收藏 0 点赞 0 评论 0
def connect(self, host='localhost', port=0):
        """Connect to the LMTP daemon, on either a Unix or a TCP socket."""
        if host[0] != '/':
            return SMTP.connect(self, host, port)

        # Handle Unix-domain sockets.
        try:
            self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
            self.sock.connect(host)
        except socket.error, msg:
            if self.debuglevel > 0:
                print>>stderr, 'connect fail:', host
            if self.sock:
                self.sock.close()
            self.sock = None
            raise socket.error, msg
        (code, msg) = self.getreply()
        if self.debuglevel > 0:
            print>>stderr, "connect:", msg
        return (code, msg)


# Test the sendmail method, which tests most of the others.
# Note: This always sends to localhost.
ssl.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def _real_connect(self, addr, return_errno):
        # Here we assume that the socket is client-side, and not
        # connected at the time of the call.  We connect it, then wrap it.
        if self._connected:
            raise ValueError("attempt to connect already-connected SSLSocket!")
        self._sslobj = _ssl.sslwrap(self._sock, False, self.keyfile, self.certfile,
                                    self.cert_reqs, self.ssl_version,
                                    self.ca_certs, self.ciphers)
        try:
            socket.connect(self, addr)
            if self.do_handshake_on_connect:
                self.do_handshake()
        except socket_error as e:
            if return_errno:
                return e.errno
            else:
                self._sslobj = None
                raise e
        self._connected = True
        return 0
ssl.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 27 收藏 0 点赞 0 评论 0
def sslwrap_simple(sock, keyfile=None, certfile=None):

    """A replacement for the old socket.ssl function.  Designed
    for compability with Python 2.5 and earlier.  Will disappear in
    Python 3.0."""

    if hasattr(sock, "_sock"):
        sock = sock._sock

    ssl_sock = _ssl.sslwrap(sock, 0, keyfile, certfile, CERT_NONE,
                            PROTOCOL_SSLv23, None)
    try:
        sock.getpeername()
    except socket_error:
        # no, no connection yet
        pass
    else:
        # yes, do the handshake
        ssl_sock.do_handshake()

    return ssl_sock
urllib2.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 36 收藏 0 点赞 0 评论 0
def error(self, proto, *args):
        if proto in ('http', 'https'):
            # XXX http[s] protocols are special-cased
            dict = self.handle_error['http'] # https is not different than http
            proto = args[2]  # YUCK!
            meth_name = 'http_error_%s' % proto
            http_err = 1
            orig_args = args
        else:
            dict = self.handle_error
            meth_name = proto + '_error'
            http_err = 0
        args = (dict, proto, meth_name) + args
        result = self._call_chain(*args)
        if result:
            return result

        if http_err:
            args = (dict, 'default', 'http_error_default') + orig_args
            return self._call_chain(*args)

# XXX probably also want an abstract factory that knows when it makes
# sense to skip a superclass in favor of a subclass and when it might
# make sense to include both
handlers.py 文件源码 项目:kinect-2-libras 作者: inessadl 项目源码 文件源码 阅读 41 收藏 0 点赞 0 评论 0
def __init__(self, host, port):
        """
        Initializes the handler with a specific host address and port.

        The attribute 'closeOnError' is set to 1 - which means that if
        a socket error occurs, the socket is silently closed and then
        reopened on the next logging call.
        """
        logging.Handler.__init__(self)
        self.host = host
        self.port = port
        self.sock = None
        self.closeOnError = 0
        self.retryTime = None
        #
        # Exponential backoff parameters.
        #
        self.retryStart = 1.0
        self.retryMax = 30.0
        self.retryFactor = 2.0


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