1 files changed, 124 insertions, 0 deletions
diff --git a/examples/network/fortuneclient/fortuneclient.py b/examples/network/fortuneclient/fortuneclient.py
new file mode 100644
index 000000000..e88e5e35b
--- /dev/null
+++ b/examples/network/fortuneclient/fortuneclient.py
@@ -0,0 +1,124 @@
+# Copyright (C) 2013 Riverbank Computing Limited.
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+"""PySide6 port of the network/fortuneclient example from Qt v5.x"""
+
+import sys
+
+from PySide6.QtCore import QDataStream, QTimer
+from PySide6.QtGui import QIntValidator
+from PySide6.QtNetwork import QAbstractSocket, QTcpSocket
+from PySide6.QtWidgets import (QApplication, QDialog, QDialogButtonBox, QGridLayout,
+                               QLabel, QLineEdit, QMessageBox, QPushButton)
+
+
+class Client(QDialog):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self._block_size = 0
+        self._current_fortune = ''
+
+        host_label = QLabel("&Server name:")
+        port_label = QLabel("S&erver port:")
+
+        self._host_line_edit = QLineEdit('Localhost')
+        self._port_line_edit = QLineEdit()
+        self._port_line_edit.setValidator(QIntValidator(1, 65535, self))
+
+        host_label.setBuddy(self._host_line_edit)
+        port_label.setBuddy(self._port_line_edit)
+
+        self._status_label = QLabel("This examples requires that you run "
+                                    "the Fortune Server example as well.")
+
+        self._get_fortune_button = QPushButton("Get Fortune")
+        self._get_fortune_button.setDefault(True)
+        self._get_fortune_button.setEnabled(False)
+
+        quit_button = QPushButton("Quit")
+
+        button_box = QDialogButtonBox()
+        button_box.addButton(self._get_fortune_button, QDialogButtonBox.ActionRole)
+        button_box.addButton(quit_button, QDialogButtonBox.RejectRole)
+
+        self._tcp_socket = QTcpSocket(self)
+
+        self._host_line_edit.textChanged.connect(self.enable_get_fortune_button)
+        self._port_line_edit.textChanged.connect(self.enable_get_fortune_button)
+        self._get_fortune_button.clicked.connect(self.request_new_fortune)
+        quit_button.clicked.connect(self.close)
+        self._tcp_socket.readyRead.connect(self.read_fortune)
+        self._tcp_socket.errorOccurred.connect(self.display_error)
+
+        main_layout = QGridLayout(self)
+        main_layout.addWidget(host_label, 0, 0)
+        main_layout.addWidget(self._host_line_edit, 0, 1)
+        main_layout.addWidget(port_label, 1, 0)
+        main_layout.addWidget(self._port_line_edit, 1, 1)
+        main_layout.addWidget(self._status_label, 2, 0, 1, 2)
+        main_layout.addWidget(button_box, 3, 0, 1, 2)
+
+        self.setWindowTitle("Fortune Client")
+        self._port_line_edit.setFocus()
+
+    def request_new_fortune(self):
+        self._get_fortune_button.setEnabled(False)
+        self._block_size = 0
+        self._tcp_socket.abort()
+        self._tcp_socket.connectToHost(self._host_line_edit.text(),
+                                       int(self._port_line_edit.text()))
+
+    def read_fortune(self):
+        instr = QDataStream(self._tcp_socket)
+        instr.setVersion(QDataStream.Qt_4_0)
+
+        if self._block_size == 0:
+            if self._tcp_socket.bytesAvailable() < 2:
+                return
+
+            self._block_size = instr.readUInt16()
+
+        if self._tcp_socket.bytesAvailable() < self._block_size:
+            return
+
+        next_fortune = instr.readString()
+
+        if next_fortune == self._current_fortune:
+            QTimer.singleShot(0, self.request_new_fortune)
+            return
+
+        self._current_fortune = next_fortune
+        self._status_label.setText(self._current_fortune)
+        self._get_fortune_button.setEnabled(True)
+
+    def display_error(self, socketError):
+        if socketError == QAbstractSocket.RemoteHostClosedError:
+            pass
+        elif socketError == QAbstractSocket.HostNotFoundError:
+            QMessageBox.information(self, "Fortune Client",
+                                    "The host was not found. Please check the host name and "
+                                    "port settings.")
+        elif socketError == QAbstractSocket.ConnectionRefusedError:
+            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:
+            reason = self._tcp_socket.errorString()
+            QMessageBox.information(self, "Fortune Client",
+                                    f"The following error occurred: {reason}.")
+
+        self._get_fortune_button.setEnabled(True)
+
+    def enable_get_fortune_button(self):
+        self._get_fortune_button.setEnabled(bool(self._host_line_edit.text()
+                                                 and self._port_line_edit.text()))
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    client = Client()
+    client.show()
+    sys.exit(client.exec())