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authorFriedemann Kleint <Friedemann.Kleint@qt.io>2018-01-05 15:58:35 +0100
committerFriedemann Kleint <Friedemann.Kleint@qt.io>2018-01-12 12:28:10 +0000
commit9f2a9aba3aff73e31ea15eb4a7a04b0e50f4ee4e (patch)
tree92dcb0c4f64df8a8375af2e1a9bb1170068c36b2 /examples/network
parent26c046e521c38bbfc3a263782a3bb74a7c1bf937 (diff)
Move examples from submodule to pyside-setup
Move PySide2 examples that are owned by the Qt Company to a new examples directory. Done-with: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io> Task-number: PYSIDE-363 Change-Id: I14099764d9eef2bc35e067086121427955862e3a Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Diffstat (limited to 'examples/network')
-rw-r--r--examples/network/blockingfortuneclient.py225
-rwxr-xr-xexamples/network/fortuneclient.py168
-rwxr-xr-xexamples/network/fortuneserver.py125
-rwxr-xr-xexamples/network/threadedfortuneserver.py153
4 files changed, 671 insertions, 0 deletions
diff --git a/examples/network/blockingfortuneclient.py b/examples/network/blockingfortuneclient.py
new file mode 100644
index 00000000..8e73af0f
--- /dev/null
+++ b/examples/network/blockingfortuneclient.py
@@ -0,0 +1,225 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/blockingfortunclient example from Qt v5.x, originating from PyQt"""
+
+from PySide2.QtCore import (Signal, QDataStream, QMutex, QMutexLocker,
+ QThread, QWaitCondition)
+from PySide2.QtGui import QIntValidator
+from PySide2.QtWidgets import (QApplication, QDialogButtonBox, QGridLayout,
+ QLabel, QLineEdit, QMessageBox, QPushButton, QWidget)
+from PySide2.QtNetwork import (QAbstractSocket, QHostAddress, QNetworkInterface,
+ QTcpSocket)
+
+
+class FortuneThread(QThread):
+ newFortune = Signal(str)
+
+ error = Signal(int, str)
+
+ def __init__(self, parent=None):
+ super(FortuneThread, self).__init__(parent)
+
+ self.quit = False
+ self.hostName = ''
+ self.cond = QWaitCondition()
+ self.mutex = QMutex()
+ self.port = 0
+
+ def __del__(self):
+ self.mutex.lock()
+ self.quit = True
+ self.cond.wakeOne()
+ self.mutex.unlock()
+ self.wait()
+
+ def requestNewFortune(self, hostname, port):
+ locker = QMutexLocker(self.mutex)
+ self.hostName = hostname
+ self.port = port
+ if not self.isRunning():
+ self.start()
+ else:
+ self.cond.wakeOne()
+
+ def run(self):
+ self.mutex.lock()
+ serverName = self.hostName
+ serverPort = self.port
+ self.mutex.unlock()
+
+ while not self.quit:
+ Timeout = 5 * 1000
+
+ socket = QTcpSocket()
+ socket.connectToHost(serverName, serverPort)
+
+ if not socket.waitForConnected(Timeout):
+ self.error.emit(socket.error(), socket.errorString())
+ return
+
+ while socket.bytesAvailable() < 2:
+ if not socket.waitForReadyRead(Timeout):
+ self.error.emit(socket.error(), socket.errorString())
+ return
+
+ instr = QDataStream(socket)
+ instr.setVersion(QDataStream.Qt_4_0)
+ blockSize = instr.readUInt16()
+
+ while socket.bytesAvailable() < blockSize:
+ if not socket.waitForReadyRead(Timeout):
+ self.error.emit(socket.error(), socket.errorString())
+ return
+
+ self.mutex.lock()
+ fortune = instr.readQString()
+ self.newFortune.emit(fortune)
+
+ self.cond.wait(self.mutex)
+ serverName = self.hostName
+ serverPort = self.port
+ self.mutex.unlock()
+
+
+class BlockingClient(QWidget):
+ def __init__(self, parent=None):
+ super(BlockingClient, self).__init__(parent)
+
+ self.thread = FortuneThread()
+ self.currentFortune = ''
+
+ hostLabel = QLabel("&Server name:")
+ portLabel = QLabel("S&erver port:")
+
+ for ipAddress in QNetworkInterface.allAddresses():
+ if ipAddress != QHostAddress.LocalHost and ipAddress.toIPv4Address() != 0:
+ break
+ else:
+ ipAddress = QHostAddress(QHostAddress.LocalHost)
+
+ ipAddress = ipAddress.toString()
+
+ self.hostLineEdit = QLineEdit(ipAddress)
+ self.portLineEdit = QLineEdit()
+ self.portLineEdit.setValidator(QIntValidator(1, 65535, self))
+
+ hostLabel.setBuddy(self.hostLineEdit)
+ portLabel.setBuddy(self.portLineEdit)
+
+ self.statusLabel = QLabel(
+ "This example requires that you run the Fortune Server example as well.")
+ self.statusLabel.setWordWrap(True)
+
+ self.getFortuneButton = QPushButton("Get Fortune")
+ self.getFortuneButton.setDefault(True)
+ self.getFortuneButton.setEnabled(False)
+
+ quitButton = QPushButton("Quit")
+
+ buttonBox = QDialogButtonBox()
+ buttonBox.addButton(self.getFortuneButton, QDialogButtonBox.ActionRole)
+ buttonBox.addButton(quitButton, QDialogButtonBox.RejectRole)
+
+ self.getFortuneButton.clicked.connect(self.requestNewFortune)
+ quitButton.clicked.connect(self.close)
+ self.hostLineEdit.textChanged.connect(self.enableGetFortuneButton)
+ self.portLineEdit.textChanged.connect(self.enableGetFortuneButton)
+ self.thread.newFortune.connect(self.showFortune)
+ self.thread.error.connect(self.displayError)
+
+ mainLayout = QGridLayout()
+ mainLayout.addWidget(hostLabel, 0, 0)
+ mainLayout.addWidget(self.hostLineEdit, 0, 1)
+ mainLayout.addWidget(portLabel, 1, 0)
+ mainLayout.addWidget(self.portLineEdit, 1, 1)
+ mainLayout.addWidget(self.statusLabel, 2, 0, 1, 2)
+ mainLayout.addWidget(buttonBox, 3, 0, 1, 2)
+ self.setLayout(mainLayout)
+
+ self.setWindowTitle("Blocking Fortune Client")
+ self.portLineEdit.setFocus()
+
+ def requestNewFortune(self):
+ self.getFortuneButton.setEnabled(False)
+ self.thread.requestNewFortune(self.hostLineEdit.text(),
+ int(self.portLineEdit.text()))
+
+ def showFortune(self, nextFortune):
+ if nextFortune == self.currentFortune:
+ self.requestNewFortune()
+ return
+
+ self.currentFortune = nextFortune
+ self.statusLabel.setText(self.currentFortune)
+ self.getFortuneButton.setEnabled(True)
+
+ def displayError(self, socketError, message):
+ if socketError == QAbstractSocket.HostNotFoundError:
+ QMessageBox.information(self, "Blocking Fortune Client",
+ "The host was not found. Please check the host and port "
+ "settings.")
+ elif socketError == QAbstractSocket.ConnectionRefusedError:
+ QMessageBox.information(self, "Blocking Fortune Client",
+ "The connection was refused by the peer. Make sure the "
+ "fortune server is running, and check that the host name "
+ "and port settings are correct.")
+ else:
+ QMessageBox.information(self, "Blocking Fortune Client",
+ "The following error occurred: %s." % message)
+
+ self.getFortuneButton.setEnabled(True)
+
+ def enableGetFortuneButton(self):
+ self.getFortuneButton.setEnabled(self.hostLineEdit.text() != '' and
+ self.portLineEdit.text() != '')
+
+
+if __name__ == '__main__':
+
+ import sys
+
+ app = QApplication(sys.argv)
+ client = BlockingClient()
+ client.show()
+ sys.exit(app.exec_())
diff --git a/examples/network/fortuneclient.py b/examples/network/fortuneclient.py
new file mode 100755
index 00000000..3ec5623b
--- /dev/null
+++ b/examples/network/fortuneclient.py
@@ -0,0 +1,168 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/fortuneclient example from Qt v5.x"""
+
+from PySide2 import QtCore, QtGui, QtWidgets, QtNetwork
+
+
+class Client(QtWidgets.QDialog):
+ def __init__(self, parent=None):
+ super(Client, self).__init__(parent)
+
+ self.blockSize = 0
+ self.currentFortune = ''
+
+ hostLabel = QtWidgets.QLabel("&Server name:")
+ portLabel = QtWidgets.QLabel("S&erver port:")
+
+ self.hostLineEdit = QtWidgets.QLineEdit('Localhost')
+ self.portLineEdit = QtWidgets.QLineEdit()
+ self.portLineEdit.setValidator(QtGui.QIntValidator(1, 65535, self))
+
+ hostLabel.setBuddy(self.hostLineEdit)
+ portLabel.setBuddy(self.portLineEdit)
+
+ self.statusLabel = QtWidgets.QLabel("This examples requires that you run "
+ "the Fortune Server example as well.")
+
+ self.getFortuneButton = QtWidgets.QPushButton("Get Fortune")
+ self.getFortuneButton.setDefault(True)
+ self.getFortuneButton.setEnabled(False)
+
+ quitButton = QtWidgets.QPushButton("Quit")
+
+ buttonBox = QtWidgets.QDialogButtonBox()
+ buttonBox.addButton(self.getFortuneButton,
+ QtWidgets.QDialogButtonBox.ActionRole)
+ buttonBox.addButton(quitButton, QtWidgets.QDialogButtonBox.RejectRole)
+
+ self.tcpSocket = QtNetwork.QTcpSocket(self)
+
+ self.hostLineEdit.textChanged.connect(self.enableGetFortuneButton)
+ self.portLineEdit.textChanged.connect(self.enableGetFortuneButton)
+ self.getFortuneButton.clicked.connect(self.requestNewFortune)
+ quitButton.clicked.connect(self.close)
+ self.tcpSocket.readyRead.connect(self.readFortune)
+ self.tcpSocket.error.connect(self.displayError)
+
+ mainLayout = QtWidgets.QGridLayout()
+ mainLayout.addWidget(hostLabel, 0, 0)
+ mainLayout.addWidget(self.hostLineEdit, 0, 1)
+ mainLayout.addWidget(portLabel, 1, 0)
+ mainLayout.addWidget(self.portLineEdit, 1, 1)
+ mainLayout.addWidget(self.statusLabel, 2, 0, 1, 2)
+ mainLayout.addWidget(buttonBox, 3, 0, 1, 2)
+ self.setLayout(mainLayout)
+
+ self.setWindowTitle("Fortune Client")
+ self.portLineEdit.setFocus()
+
+ def requestNewFortune(self):
+ self.getFortuneButton.setEnabled(False)
+ self.blockSize = 0
+ self.tcpSocket.abort()
+ self.tcpSocket.connectToHost(self.hostLineEdit.text(),
+ int(self.portLineEdit.text()))
+
+ def readFortune(self):
+ instr = QtCore.QDataStream(self.tcpSocket)
+ instr.setVersion(QtCore.QDataStream.Qt_4_0)
+
+ if self.blockSize == 0:
+ if self.tcpSocket.bytesAvailable() < 2:
+ return
+
+ self.blockSize = instr.readUInt16()
+
+ if self.tcpSocket.bytesAvailable() < self.blockSize:
+ return
+
+ nextFortune = instr.readString()
+
+ try:
+ # Python v3.
+ nextFortune = str(nextFortune, encoding='ascii')
+ except TypeError:
+ # Python v2.
+ pass
+
+ if nextFortune == self.currentFortune:
+ QtCore.QTimer.singleShot(0, self.requestNewFortune)
+ return
+
+ self.currentFortune = nextFortune
+ self.statusLabel.setText(self.currentFortune)
+ self.getFortuneButton.setEnabled(True)
+
+ def displayError(self, socketError):
+ if socketError == QtNetwork.QAbstractSocket.RemoteHostClosedError:
+ pass
+ elif socketError == QtNetwork.QAbstractSocket.HostNotFoundError:
+ QtWidgets.QMessageBox.information(self, "Fortune Client",
+ "The host was not found. Please check the host name and "
+ "port settings.")
+ elif socketError == QtNetwork.QAbstractSocket.ConnectionRefusedError:
+ QtWidgets.QMessageBox.information(self, "Fortune Client",
+ "The connection was refused by the peer. Make sure the "
+ "fortune server is running, and check that the host name "
+ "and port settings are correct.")
+ else:
+ QtWidgets.QMessageBox.information(self, "Fortune Client",
+ "The following error occurred: %s." % self.tcpSocket.errorString())
+
+ self.getFortuneButton.setEnabled(True)
+
+ def enableGetFortuneButton(self):
+ self.getFortuneButton.setEnabled(bool(self.hostLineEdit.text() and
+ self.portLineEdit.text()))
+
+
+if __name__ == '__main__':
+
+ import sys
+
+ app = QtWidgets.QApplication(sys.argv)
+ client = Client()
+ client.show()
+ sys.exit(client.exec_())
diff --git a/examples/network/fortuneserver.py b/examples/network/fortuneserver.py
new file mode 100755
index 00000000..1c08f6e8
--- /dev/null
+++ b/examples/network/fortuneserver.py
@@ -0,0 +1,125 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/fortuneserver example from Qt v5.x"""
+
+import random
+
+from PySide2 import QtCore, QtGui, QtWidgets, QtNetwork
+
+
+class Server(QtWidgets.QDialog):
+ def __init__(self, parent=None):
+ super(Server, self).__init__(parent)
+
+ statusLabel = QtWidgets.QLabel()
+ quitButton = QtWidgets.QPushButton("Quit")
+ quitButton.setAutoDefault(False)
+
+ self.tcpServer = QtNetwork.QTcpServer(self)
+ if not self.tcpServer.listen():
+ QtWidgets.QMessageBox.critical(self, "Fortune Server",
+ "Unable to start the server: %s." % self.tcpServer.errorString())
+ self.close()
+ return
+
+ statusLabel.setText("The server is running on port %d.\nRun the "
+ "Fortune Client example now." % self.tcpServer.serverPort())
+
+ self.fortunes = (
+ "You've been leading a dog's life. Stay off the furniture.",
+ "You've got to think about tomorrow.",
+ "You will be surprised by a loud noise.",
+ "You will feel hungry again in another hour.",
+ "You might have mail.",
+ "You cannot kill time without injuring eternity.",
+ "Computers are not intelligent. They only think they are.")
+
+ quitButton.clicked.connect(self.close)
+ self.tcpServer.newConnection.connect(self.sendFortune)
+
+ buttonLayout = QtWidgets.QHBoxLayout()
+ buttonLayout.addStretch(1)
+ buttonLayout.addWidget(quitButton)
+ buttonLayout.addStretch(1)
+
+ mainLayout = QtWidgets.QVBoxLayout()
+ mainLayout.addWidget(statusLabel)
+ mainLayout.addLayout(buttonLayout)
+ self.setLayout(mainLayout)
+
+ self.setWindowTitle("Fortune Server")
+
+ def sendFortune(self):
+ block = QtCore.QByteArray()
+ out = QtCore.QDataStream(block, QtCore.QIODevice.WriteOnly)
+ out.setVersion(QtCore.QDataStream.Qt_4_0)
+ out.writeUInt16(0)
+ fortune = self.fortunes[random.randint(0, len(self.fortunes) - 1)]
+
+ try:
+ # Python v3.
+ fortune = bytes(fortune, encoding='ascii')
+ except:
+ # Python v2.
+ pass
+
+ out.writeString(fortune)
+ out.device().seek(0)
+ out.writeUInt16(block.size() - 2)
+
+ clientConnection = self.tcpServer.nextPendingConnection()
+ clientConnection.disconnected.connect(clientConnection.deleteLater)
+
+ clientConnection.write(block)
+ clientConnection.disconnectFromHost()
+
+
+if __name__ == '__main__':
+
+ import sys
+
+ app = QtWidgets.QApplication(sys.argv)
+ server = Server()
+ random.seed(None)
+ sys.exit(server.exec_())
diff --git a/examples/network/threadedfortuneserver.py b/examples/network/threadedfortuneserver.py
new file mode 100755
index 00000000..95452e7e
--- /dev/null
+++ b/examples/network/threadedfortuneserver.py
@@ -0,0 +1,153 @@
+#!/usr/bin/env python
+
+#############################################################################
+##
+## Copyright (C) 2013 Riverbank Computing Limited.
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the PySide examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+"""PySide2 port of the network/threadedfortuneserver example from Qt v5.x, originating from PyQt"""
+
+import random
+
+from PySide2.QtCore import (Signal, QByteArray, QDataStream, QIODevice,
+ QThread, Qt)
+from PySide2.QtWidgets import (QApplication, QDialog, QHBoxLayout, QLabel,
+ QMessageBox, QPushButton, QVBoxLayout)
+from PySide2.QtNetwork import (QHostAddress, QNetworkInterface, QTcpServer,
+ QTcpSocket)
+
+
+class FortuneThread(QThread):
+ error = Signal(QTcpSocket.SocketError)
+
+ def __init__(self, socketDescriptor, fortune, parent):
+ super(FortuneThread, self).__init__(parent)
+
+ self.socketDescriptor = socketDescriptor
+ self.text = fortune
+
+ def run(self):
+ tcpSocket = QTcpSocket()
+ if not tcpSocket.setSocketDescriptor(self.socketDescriptor):
+ self.error.emit(tcpSocket.error())
+ return
+
+ block = QByteArray()
+ outstr = QDataStream(block, QIODevice.WriteOnly)
+ outstr.setVersion(QDataStream.Qt_4_0)
+ outstr.writeUInt16(0)
+ outstr.writeQString(self.text)
+ outstr.device().seek(0)
+ outstr.writeUInt16(block.size() - 2)
+
+ tcpSocket.write(block)
+ tcpSocket.disconnectFromHost()
+ tcpSocket.waitForDisconnected()
+
+
+class FortuneServer(QTcpServer):
+ fortunes = (
+ "You've been leading a dog's life. Stay off the furniture.",
+ "You've got to think about tomorrow.",
+ "You will be surprised by a loud noise.",
+ "You will feel hungry again in another hour.",
+ "You might have mail.",
+ "You cannot kill time without injuring eternity.",
+ "Computers are not intelligent. They only think they are.")
+
+ def incomingConnection(self, socketDescriptor):
+ fortune = self.fortunes[random.randint(0, len(self.fortunes) - 1)]
+
+ thread = FortuneThread(socketDescriptor, fortune, self)
+ thread.finished.connect(thread.deleteLater)
+ thread.start()
+
+
+class Dialog(QDialog):
+ def __init__(self, parent=None):
+ super(Dialog, self).__init__(parent)
+
+ self.server = FortuneServer()
+
+ statusLabel = QLabel()
+ statusLabel.setTextInteractionFlags(Qt.TextBrowserInteraction)
+ statusLabel.setWordWrap(True)
+ quitButton = QPushButton("Quit")
+ quitButton.setAutoDefault(False)
+
+ if not self.server.listen():
+ QMessageBox.critical(self, "Threaded Fortune Server",
+ "Unable to start the server: %s." % self.server.errorString())
+ self.close()
+ return
+
+ for ipAddress in QNetworkInterface.allAddresses():
+ if ipAddress != QHostAddress.LocalHost and ipAddress.toIPv4Address() != 0:
+ break
+ else:
+ ipAddress = QHostAddress(QHostAddress.LocalHost)
+
+ ipAddress = ipAddress.toString()
+
+ statusLabel.setText("The server is running on\n\nIP: %s\nport: %d\n\n"
+ "Run the Fortune Client example now." % (ipAddress, self.server.serverPort()))
+
+ quitButton.clicked.connect(self.close)
+
+ buttonLayout = QHBoxLayout()
+ buttonLayout.addStretch(1)
+ buttonLayout.addWidget(quitButton)
+ buttonLayout.addStretch(1)
+
+ mainLayout = QVBoxLayout()
+ mainLayout.addWidget(statusLabel)
+ mainLayout.addLayout(buttonLayout)
+ self.setLayout(mainLayout)
+
+ self.setWindowTitle("Threaded Fortune Server")
+
+
+if __name__ == '__main__':
+
+ import sys
+
+ app = QApplication(sys.argv)
+ dialog = Dialog()
+ dialog.show()
+ sys.exit(dialog.exec_())