[Pyscard-devel] SF.net SVN: pyscard:[291] trunk/pyscard/src/smartcard

[<lu...@us...>]

Revision: 291
          http://pyscard.svn.sourceforge.net/pyscard/?rev=291&view=rev
Author:   ludov
Date:     2009-06-14 12:04:25 +0000 (Sun, 14 Jun 2009)

Log Message:
-----------
add CardConnection.control() method (high level SCardControl)

Modified Paths:
--------------
    trunk/pyscard/src/smartcard/CardConnection.py
    trunk/pyscard/src/smartcard/CardConnectionDecorator.py
    trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py

Modified: trunk/pyscard/src/smartcard/CardConnection.py
===================================================================
--- trunk/pyscard/src/smartcard/CardConnection.py	2009-06-14 11:38:34 UTC (rev 290)
+++ trunk/pyscard/src/smartcard/CardConnection.py	2009-06-14 12:04:25 UTC (rev 291)
@@ -139,3 +139,27 @@
         Subclasses must override this method for implementing apdu transmission."""
         pass
 
+    def control( self, controlCode, bytes = [] ):
+        """Send a control command and buffer.  Internally calls doControl()
+        class method and notify observers upon command/response events.
+        Subclasses must override the doControl() class method.
+
+        controlCode: command code
+ 
+        bytes:       list of bytes to transmit
+        """
+        Observable.setChanged( self )
+        Observable.notifyObservers( self, CardConnectionEvent('command', [controlCode, bytes] ) )
+        data = self.doControl( controlCode, bytes )
+        Observable.setChanged( self )
+        Observable.notifyObservers( self, CardConnectionEvent( 'response', data ) )
+        if None!=self.errorcheckingchain:
+            self.errorcheckingchain[0]( data )
+        return data
+
+    def doControl( self, controlCode, bytes ):
+        """Performs the command control.
+
+        Subclasses must override this method for implementing control."""
+        pass
+

Modified: trunk/pyscard/src/smartcard/CardConnectionDecorator.py
===================================================================
--- trunk/pyscard/src/smartcard/CardConnectionDecorator.py	2009-06-14 11:38:34 UTC (rev 290)
+++ trunk/pyscard/src/smartcard/CardConnectionDecorator.py	2009-06-14 12:04:25 UTC (rev 291)
@@ -80,3 +80,7 @@
         """call inner component transmit"""
         return self.component.transmit( bytes, protocol )
 
+    def control( self, controlCode, bytes=[] ):
+        """call inner component control"""
+        return self.component.control( controlCode, bytes )
+

Modified: trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py
===================================================================
--- trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py	2009-06-14 11:38:34 UTC (rev 290)
+++ trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py	2009-06-14 12:04:25 UTC (rev 291)
@@ -160,6 +160,23 @@
         data = map(lambda x: (x+256)%256, response[:-2])
         return data, sw1, sw2
 
+    def doControl( self, controlCode, bytes=[] ):
+        """Transmit a control command to the reader and return response.
+
+        controlCode: control command
+
+        bytes:       command data to transmit (list of bytes)
+
+        return:      response are the response bytes (if any)
+        """
+        CardConnection.doControl( self, controlCode, bytes )
+        hresult, response = SCardControl( self.hcard, controlCode, bytes )
+        if hresult!=0:
+            raise CardConnectionException( 'Failed to control ' + SCardGetErrorMessage(hresult) )
+
+        data = map(lambda x: (x+256)%256, response)
+        return data
+
 if __name__ == '__main__':
     """Small sample illustrating the use of CardConnection."""
     SELECT = [0xA0, 0xA4, 0x00, 0x00, 0x02]
@@ -169,3 +186,4 @@
     cc.connect()
     print "%r %x %x" % cc.transmit( SELECT + DF_TELECOM )
 
+    print cc.control( 0, [] )


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