CPESet2_2 class

class cpe.cpeset2_2.CPESet2_2

Represents a set of CPE Names.

This class allows:

  • create set of CPE Names.
  • match a CPE element against a set of CPE Names.
append(cpe)

Adds a CPE Name to the set if not already.

Parameters:cpe (CPE) – CPE Name to store in set
Returns:None
Exception:ValueError - invalid version of CPE Name

TEST:

>>> from .cpeset2_2 import CPESet2_2
>>> from .cpe2_2 import CPE2_2
>>> uri1 = 'cpe:/h:hp'
>>> c1 = CPE2_2(uri1)
>>> s = CPESet2_2()
>>> s.append(c1)
name_match(cpe)

Accepts a set of known instances of CPE Names and a candidate CPE Name, and returns ‘True’ if the candidate can be shown to be an instance based on the content of the known instances. Otherwise, it returns ‘False’.

Parameters:
  • self (CPESet) – A set of m known CPE Names K = {K1, K2, …, Km}.
  • cpe (CPE) – A candidate CPE Name X.
Returns:

True if X matches K, otherwise False.

Return type:

boolean

TEST: matching with ANY values explicit

>>> from .cpe2_2 import CPE2_2
>>> uri1 = 'cpe:/o:microsoft:windows:vista'
>>> uri2 = 'cpe:/o:cisco:ios:12.3:enterprise'
>>> c1 = CPE2_2(uri1)
>>> c2 = CPE2_2(uri2)
>>> s = CPESet2_2()
>>> s.append(c1)
>>> s.append(c2)
>>> uri3 = 'cpe:/o:microsoft::vista'
>>> c3 = CPE2_2(uri3)
>>> s.name_match(c3)
True