コード例 #1
0
ファイル: local_server.py プロジェクト: yuanyanhong/gns3-gui
class StopLocalServerWorker(QtCore.QObject):
    """
    Worker for displaying a progress dialog when closing
    the server
    """
    # signals to update the progress dialog.
    error = QtCore.pyqtSignal(str, bool)
    finished = QtCore.pyqtSignal()
    updated = QtCore.pyqtSignal(int)

    def __init__(self, local_server_process):
        super().__init__()
        self._local_server_process = local_server_process
        self._precision = 100  # In MS
        self._remaining_trial = int(10 * (1000 / self._precision))

    @qslot
    def _callbackSlot(self, *params):
        self._local_server_process.poll()
        if self._local_server_process.returncode is None and self._remaining_trial > 0:
            self._remaining_trial -= 1
            QtCore.QTimer.singleShot(self._precision, self._callbackSlot)
        else:
            self.finished.emit()

    def run(self):
        QtCore.QTimer.singleShot(1000, self._callbackSlot)

    def cancel(self):
        return
コード例 #2
0
class StopLocalServerWorker(QtCore.QObject):
    """
    Worker for displaying a progress dialog when closing
    the server
    """
    # signals to update the progress dialog.
    error = QtCore.pyqtSignal(str, bool)
    finished = QtCore.pyqtSignal()
    updated = QtCore.pyqtSignal(int)

    def __init__(self, local_server_process):
        super().__init__()
        self._local_server_process = local_server_process

    def run(self):
        precision = 1
        remaining_trial = 4 / precision  # 4 Seconds
        while remaining_trial > 0:
            if self._local_server_process.returncode is None:
                remaining_trial -= 1
                self.thread().sleep(precision)
            else:
                break
        self.finished.emit()

    def cancel(self):
        return
コード例 #3
0
class DecompressIOSWorker(QtCore.QObject):
    """
    Thread to decompress an IOS image.

    :param ios_image: IOS image path
    :param destination_file: destination path for the decompressed IOS image
    """

    # signals to update the progress dialog.
    error = QtCore.pyqtSignal(str, bool)
    finished = QtCore.pyqtSignal()
    updated = QtCore.pyqtSignal(int)

    def __init__(self, ios_image, destination_file):

        super().__init__()
        self._is_running = False
        self._ios_image = ios_image
        self._destination_file = destination_file

    def run(self):
        """
        Thread starting point.
        """

        self._is_running = True
        try:
            decompressIOS(self._ios_image, self._destination_file)
        except (zipfile.BadZipFile, zlib.error) as e:
            self.error.emit(
                "File {} is corrupted {}".format(self._ios_image, e), True)
            return
        except (OSError, MemoryError) as e:
            self.error.emit(
                "Could not decompress {}: {}".format(self._ios_image, e), True)
            return

        # IOS image has successfully been decompressed
        self.finished.emit()

    def cancel(self):
        """
        Cancel this worker.
        """

        if not self:
            return
        self._is_running = False
コード例 #4
0
class DecompressIOSThread(QtCore.QThread):
    """
    Thread to decompress an IOS image.

    :param ios_image: IOS image path
    :param destination_file: destination path for the decompressed IOS image
    """

    # signals to update the progress dialog.
    error = QtCore.pyqtSignal(str, bool)
    completed = QtCore.pyqtSignal()
    update = QtCore.pyqtSignal(int)

    def __init__(self, ios_image, destination_file):

        QtCore.QThread.__init__(self)
        self._ios_image = ios_image
        self._destination_file = destination_file
        self._is_running = False

    def run(self):
        """
        Thread starting point.
        """

        self._is_running = True
        try:
            decompressIOS(self._ios_image, self._destination_file)
        except zipfile.BadZipFile as e:
            self.error.emit(
                "File {} is corrupted {}".format(self._ios_image, e), True)
            return
        except OSError as e:
            self.error.emit(
                "Could not decompress {}: {}".format(self._ios_image, e), True)
            return

        # IOS image has successfully been decompressed
        self.completed.emit()

    def stop(self):
        """
        Stops this thread as soon as possible.
        """

        self._is_running = False
コード例 #5
0
class SSHConnectionThread(QtCore.QThread):
    error_signal = QtCore.pyqtSignal(str)
    connected_signal = QtCore.pyqtSignal()

    def __init__(self, ssh_client, parent=None):
        self._ssh_client = ssh_client
        super().__init__(parent)

    def run(self):
        port = Endpoint.find_unused_port(1000, 10000)
        if port is None:
            self.error_signal.emit(
                "No port available in order to create SSH tunnel")
            return

        try:
            self._ssh_client.transport = paramiko.Transport((
                self._ssh_client.host(),
                self._ssh_client.ssh_port(),
            ))
            self._ssh_client.transport.set_keepalive(30)
            with open(self._ssh_client.ssh_key()) as f:
                self._ssh_client.transport.connect(
                    username=self._ssh_client.user(),
                    pkey=paramiko.RSAKey.from_private_key(f))

            endpoint = Endpoint(("127.0.0.1", port),
                                ("127.0.0.1", self._ssh_client._http_port),
                                self._ssh_client.transport)
            endpoint.enable()
            self._ssh_client._endpoints[port] = endpoint
        except (paramiko.ssh_exception.SSHException, OSError) as e:
            self.error_signal.emit(str(e))
            return

        self._ssh_client._http_port = port

        self.connected_signal.emit()