150 lines
4.1 KiB
Python
Executable File
150 lines
4.1 KiB
Python
Executable File
#!/usr/bin/python
|
|
#
|
|
# Scyther interface
|
|
#
|
|
|
|
#---------------------------------------------------------------------------
|
|
|
|
""" Import externals """
|
|
import os
|
|
import os.path
|
|
import sys
|
|
import StringIO
|
|
|
|
#---------------------------------------------------------------------------
|
|
|
|
""" Import scyther components """
|
|
import XMLReader
|
|
from Misc import *
|
|
|
|
#---------------------------------------------------------------------------
|
|
|
|
class Scyther(object):
|
|
def __init__ ( self):
|
|
|
|
# Where is my executable?
|
|
if sys.platform.startswith('win'):
|
|
""" Windows """
|
|
# TODO hardcoded for now, bad
|
|
self.program = "Scyther.exe"
|
|
if not os.path.isfile(self.program):
|
|
print "I can't find the Scyther executable at %s" % (self.program)
|
|
else:
|
|
""" Non-windows """
|
|
self.program = "scyther"
|
|
|
|
# Init
|
|
self.spdl = None
|
|
self.inputfile = None
|
|
self.options = ""
|
|
self.claims = None
|
|
self.errors = None
|
|
self.errorcount = 0
|
|
self.run = False
|
|
self.output = None
|
|
|
|
# defaults
|
|
self.xml = True # this results in a claim end, otherwise we simply get the output
|
|
|
|
def setInput(self,spdl):
|
|
self.spdl = spdl
|
|
self.inputfile = None
|
|
|
|
def setFile(self,filename):
|
|
self.inputfile = filename
|
|
self.spdl = ""
|
|
fp = open(filename,"r")
|
|
for l in fp.readlines():
|
|
self.spdl += l
|
|
fp.close()
|
|
|
|
def addFile(self,filename):
|
|
self.inputfile = None
|
|
if not self.spdl:
|
|
self.spdl = ""
|
|
fp = open(filename,"r")
|
|
for l in fp.readlines():
|
|
self.spdl += l
|
|
fp.close()
|
|
|
|
def verify(self):
|
|
|
|
# Run Scyther on temp file
|
|
self.cmd = self.program
|
|
if self.xml:
|
|
self.cmd += " --dot-output --xml-output --plain"
|
|
self.cmd += " " + self.options
|
|
|
|
(stdin,stdout,stderr) = os.popen3(self.cmd)
|
|
if self.spdl:
|
|
stdin.write(self.spdl)
|
|
stdin.close()
|
|
|
|
# In the order below, or stuff breaks (hangs), as described at
|
|
# http://mail.python.org/pipermail/python-dev/2000-September/009460.html
|
|
#
|
|
# TODO this is annoying: we would like to determine progress
|
|
# from the error output (maybe this can also be done by flushing
|
|
# the XML at certain points...)
|
|
output = stdout.read()
|
|
errlines = stderr.readlines()
|
|
|
|
# filter out any non-errors (say maybe only claim etc) and count
|
|
# them.
|
|
self.errors = []
|
|
for l in errlines:
|
|
if not l.startswith("claim\t"):
|
|
self.errors.append(l.strip())
|
|
|
|
self.errorcount = len(self.errors)
|
|
|
|
# close
|
|
stdout.close()
|
|
stderr.close()
|
|
|
|
if self.xml:
|
|
self.validxml = False
|
|
if len(output) > 0:
|
|
if output.startswith("<scyther>"):
|
|
self.validxml = True
|
|
|
|
if self.validxml:
|
|
xmlfile = StringIO.StringIO(output)
|
|
reader = XMLReader.XMLReader()
|
|
self.claims = reader.readXML(xmlfile)
|
|
else:
|
|
# no xml output... store whatever comes out
|
|
self.claims = []
|
|
self.output = output
|
|
result = self.claims
|
|
else:
|
|
self.output = output
|
|
result = self.output
|
|
|
|
self.run = True
|
|
return result
|
|
|
|
def getClaim(self,claimid):
|
|
if self.claims:
|
|
for cl in self.claims:
|
|
if cl.id == claimid:
|
|
return cl
|
|
return None
|
|
|
|
def __str__(self):
|
|
if self.run:
|
|
if self.errorcount > 0:
|
|
return "%i errors:\n%s" % (self.errorcount, "\n".join(self.errors))
|
|
else:
|
|
if self.xml and self.validxml:
|
|
s = "Verification results:\n"
|
|
for cl in self.claims:
|
|
s += str(cl) + "\n"
|
|
return s
|
|
else:
|
|
return self.output
|
|
else:
|
|
return "Scyther has not been run yet."
|
|
|
|
|