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2026-09-01 10:12:31 +08:00
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+"""Graphical APDU Tracer.
+
+__author__ = "gemalto https://www.gemalto.com/"
+
+Copyright 2001-2012 gemalto
+Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com
+
+This file is part of pyscard.
+
+pyscard is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+pyscard is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with pyscard; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+"""
+
+# wxPython GUI modules (https://www.wxpython.org/)
+import wx
+
+from smartcard.CardConnectionObserver import CardConnectionObserver
+from smartcard.util import toHexString
+
+[
+    wxID_APDUTEXTCTRL,
+] = [wx.NewId() for x in range(1)]
+
+
+class APDUTracerPanel(wx.Panel, CardConnectionObserver):
+
+    def __init__(self, parent):
+        wx.Panel.__init__(self, parent, -1)
+
+        boxsizer = wx.BoxSizer(wx.HORIZONTAL)
+        self.apdutextctrl = wx.TextCtrl(
+            self,
+            wxID_APDUTEXTCTRL,
+            "",
+            pos=wx.DefaultPosition,
+            style=wx.TE_MULTILINE | wx.TE_READONLY,
+        )
+        boxsizer.Add(self.apdutextctrl, 1, wx.EXPAND | wx.ALL, 5)
+        self.SetSizer(boxsizer)
+        self.SetAutoLayout(True)
+
+        self.Bind(wx.EVT_TEXT_MAXLEN, self.OnMaxLength, self.apdutextctrl)
+
+    def OnMaxLength(self, evt):
+        """Reset text buffer when max length is reached."""
+        self.apdutextctrl.SetValue("")
+        evt.Skip()
+
+    def update(self, cardconnection, ccevent):
+        """CardConnectionObserver callback."""
+
+        apduline = ""
+        if "connect" == ccevent.type:
+            apduline += "connecting to " + cardconnection.getReader()
+
+        elif "disconnect" == ccevent.type:
+            apduline += "disconnecting from " + cardconnection.getReader()
+
+        elif "command" == ccevent.type:
+            apduline += "> " + toHexString(ccevent.args[0])
+
+        elif "response" == ccevent.type:
+            if [] == ccevent.args[0]:
+                apduline += "< %-2X %-2X" % tuple(ccevent.args[-2:])
+            else:
+                apduline += (
+                    "< "
+                    + toHexString(ccevent.args[0])
+                    + "%-2X %-2X" % tuple(ccevent.args[-2:])
+                )
+
+        self.apdutextctrl.AppendText(apduline + "\n")