40 lines
1.6 KiB
Python
40 lines
1.6 KiB
Python
import binascii, re, sys, cards
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class Application:
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# This must be a sequence of regular expressions
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# When an application is selected through a matching AID
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# then all correponding classes are merged into the card
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# object.
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# The application classes themselves are responsible for
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# unmerging, should their application become deselected.
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# However, the default implementation in the generic
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# Application class which triggers unmerging on a card reset
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# and a successfull SELECT APPLICATION should be sufficient
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# in most cases.
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# (Still haven't thought this through, though...)
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## FIXME Unloading is not implemented yet
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#
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# NOTE: Implementing classes MUST derive from Application
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AID_LIST = []
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def load_applications(card, aid):
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classes_to_load = []
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for i in dir(cards):
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possible_class = getattr(cards, i)
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if not hasattr(possible_class, "DRIVER_NAME") or not issubclass(possible_class, Application):
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continue
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if possible_class.can_handle_aid(card, aid):
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classes_to_load.append(possible_class)
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print ".oO(Loading application '%s')" % ", ".join(possible_class.DRIVER_NAME)
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card.add_classes(classes_to_load)
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load_applications = staticmethod(load_applications)
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def can_handle_aid(cls, card, aid):
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for i in cls.AID_LIST:
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if re.match(i+"$", binascii.b2a_hex(aid), re.I):
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return True
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return False
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can_handle_aid = classmethod(can_handle_aid)
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