[Pyscard-devel] SF.net SVN: pyscard:[541] trunk/pyscard/src/smartcard

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

Revision: 541
          http://pyscard.svn.sourceforge.net/pyscard/?rev=541&view=rev
Author:   ludov
Date:     2011-09-03 21:28:22 +0000 (Sat, 03 Sep 2011)
Log Message:
-----------
Add CardConnection.getAttrib() method

Sample code:
card_connection = readers()[0].createConnection()
card_connection.connect(mode=SCARD_SHARE_DIRECT, disposition=SCARD_LEAVE_CARD)
vendor_name = card_connection.getAttrib(SCARD_ATTR_VENDOR_NAME)

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	2011-09-03 16:44:37 UTC (rev 540)
+++ trunk/pyscard/src/smartcard/CardConnection.py	2011-09-03 21:28:22 UTC (rev 541)
@@ -174,3 +174,21 @@
 
         Subclasses must override this method for implementing control."""
         pass
+
+    def getAttrib(self, attribId):
+        """return the requested attribute
+
+        attribId: attribute id like SCARD_ATTR_VENDOR_NAME
+        """
+        Observable.setChanged(self)
+        Observable.notifyObservers(self, CardConnectionEvent('attrib', [attribId]))
+        data = self.doGetAttrib(attribId)
+        if None != self.errorcheckingchain:
+            self.errorcheckingchain[0](data)
+        return data
+
+    def doGetAttrib(self, attribId):
+        """Performs the command get attrib.
+
+        Subclasses must override this method for implementing get attrib."""
+        pass

Modified: trunk/pyscard/src/smartcard/CardConnectionDecorator.py
===================================================================
--- trunk/pyscard/src/smartcard/CardConnectionDecorator.py	2011-09-03 16:44:37 UTC (rev 540)
+++ trunk/pyscard/src/smartcard/CardConnectionDecorator.py	2011-09-03 21:28:22 UTC (rev 541)
@@ -84,3 +84,7 @@
     def control(self, controlCode, bytes=[]):
         """call inner component control"""
         return self.component.control(controlCode, bytes)
+
+    def getAttrib(self, attribId):
+        """call inner component getAttrib"""
+        return self.component.getAttrib(attribId)

Modified: trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py
===================================================================
--- trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py	2011-09-03 16:44:37 UTC (rev 540)
+++ trunk/pyscard/src/smartcard/pcsc/PCSCCardConnection.py	2011-09-03 21:28:22 UTC (rev 541)
@@ -197,6 +197,20 @@
         data = map(lambda x: (x + 256) % 256, response)
         return data
 
+    def doGetAttrib(self, attribId):
+        """get an attribute
+
+        attribId: Identifier for the attribute to get
+
+        return:   response are the attribute byte array
+        """
+        CardConnection.doGetAttrib(self, attribId)
+        hresult, response = SCardGetAttrib(self.hcard, attribId)
+        if hresult != 0:
+            raise CardConnectionException('Failed to getAttrib ' + SCardGetErrorMessage(hresult))
+        return response
+
+
 if __name__ == '__main__':
     """Small sample illustrating the use of CardConnection."""
     SELECT = [0xA0, 0xA4, 0x00, 0x00, 0x02]

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