1542d65def
This includes a number of single patches, ranging from the vista fix with the buffers, to the start of many new minor features.
171 lines
4.5 KiB
Python
171 lines
4.5 KiB
Python
#
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# Claim
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#
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import Term
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def stateDescription(okay,n=1,caps=False):
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if okay:
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s = "trace pattern"
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if n != 1:
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s += "s"
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else:
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s = "attack"
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if n != 1:
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s += "s"
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if caps:
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s = s[0].upper() + s[1:]
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return s
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class Claim(object):
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def __init__(self):
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self.id = None # a unique id string, consisting of 'protocol,label'
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self.claimtype = None
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self.label = None
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self.shortlabel = None
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self.protocol = None
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self.role = None
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self.parameter = None
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self.failed = 0
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self.count = 0
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self.states = 0
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self.complete = False
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self.timebound = False
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self.attacks = []
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self.state = False # if true, it is a state, not an attack
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self.okay = None # true if good, false if bad
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# derived info
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self.foundstates = False
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self.foundproof = False
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def analyze(self):
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# determine short label
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# We need the rightmost thingy here
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label = self.label
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while isinstance(label,Term.TermTuple):
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label = label[1]
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self.shortlabel = label
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# determine id
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self.id = "%s,%s" % (self.protocol,self.shortlabel)
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# some additional properties
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if str(self.claimtype) == 'Reachable':
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self.state = True
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if self.failed > 0:
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self.foundstates = True
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if self.complete:
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self.foundproof = True
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# status
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# normally, with attacks, okay means none
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self.okay = (self.failed == 0)
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if self.state:
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# but the logic reverses when it is states and not
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# attacks...
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self.okay = (not self.okay)
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def stateName(self,count=1,caps=False):
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return stateDescription(self.state,count,caps)
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def getRank(self):
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"""
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Return claim rank
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0 - really failed
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1 - probably failed
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2 - probably okay
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3 - really okay
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"""
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n = len(self.attacks)
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if not self.okay:
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# not okay
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if (self.state and self.complete) or ((not self.state) and (n > 0)):
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return 0
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else:
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return 1
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else:
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# okay!
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if not ((self.state and (n > 0)) or ((not self.state) and self.complete)):
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return 2
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else:
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return 3
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def getVerified(self):
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"""
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returns an element of [None,'Verified','Falsified']
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"""
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opts = ['Falsified',None,None,'Verified']
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return opts[self.getRank()]
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def getColour(self):
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"""
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Returns a colour that expresses the state
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"""
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colours = ['#FF0000',
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'#800000',
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'#005800',
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'#00B000']
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return colours[self.getRank()]
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def getOkay(self):
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"""
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Returns a very brief statement about the claim.
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Originally the two mid options had a question mark appended, but
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from a users' point of view this might only be more confusing,
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so I took them out again.
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"""
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colours = ['Fail',
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'Fail',
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'Ok',
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'Ok']
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return colours[self.getRank()]
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def getComment(self):
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"""
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returns a sentence describing the results for this claim
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"""
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n = len(self.attacks)
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atxt = self.stateName(n)
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remark = ""
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if not self.complete:
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if n == 0:
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# no attacks, no states within bounds
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remark = "No %s within bounds" % (atxt)
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else:
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# some attacks/states within bounds
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remark = "At least %i %s" % (n,atxt)
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else:
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if n == 0:
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# no attacks, no states
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remark = "No %s" % (atxt)
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else:
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# there exist n states/attacks (within any number of runs)
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remark = "Exactly %i %s" % (n,atxt)
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return remark + "."
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def triplet(self):
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"""
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Return protocol,role,label triplet
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"""
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return (self.protocol, self.role, self.shortlabel)
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def __str__(self):
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"""
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Resulting string
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"""
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s = "claim id [%s], %s" % (self.id,self.claimtype)
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if self.parameter:
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s+= " %s" % self.parameter
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# determine status
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s+= "\t: %s" % self.getComment()
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return s
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