def _update(self): """update tkk """ # we don't need to update the base TKK value when it is still valid r = self.session.get(self.host) self.tkk = self.RE_TKK.findall(r.text)[0] now = math.floor(int(time.time() * 1000) / 3600000.0) if self.tkk and int(self.tkk.split('.')[0]) == now: return r = self.session.get(self.host) # this will be the same as python code after stripping out a reserved word 'var' code = unicode(self.RE_TKK.search(r.text).group(1)).replace('var ', '') # unescape special ascii characters such like a \x3d(=) if PY3: # pragma: no cover code = code.encode().decode('unicode-escape') else: # pragma: no cover code = code.decode('string_escape') if code: tree = ast.parse(code) visit_return = False operator = '+' n, keys = 0, dict(a=0, b=0) for node in ast.walk(tree): if isinstance(node, ast.Assign): name = node.targets[0].id if name in keys: if isinstance(node.value, ast.Num): keys[name] = node.value.n # the value can sometimes be negative elif isinstance(node.value, ast.UnaryOp) and \ isinstance(node.value.op, ast.USub): # pragma: nocover keys[name] = -node.value.operand.n elif isinstance(node, ast.Return): # parameters should be set after this point visit_return = True elif visit_return and isinstance(node, ast.Num): n = node.n elif visit_return and n > 0: # the default operator is '+' but implement some more for # all possible scenarios if isinstance(node, ast.Add): # pragma: nocover pass elif isinstance(node, ast.Sub): # pragma: nocover operator = '-' elif isinstance(node, ast.Mult): # pragma: nocover operator = '*' elif isinstance(node, ast.Pow): # pragma: nocover operator = '**' elif isinstance(node, ast.BitXor): # pragma: nocover operator = '^' # a safety way to avoid Exceptions clause = compile('{1}{0}{2}'.format( operator, keys['a'], keys['b']), '', 'eval') value = eval(clause, dict(__builtin__={})) result = '{}.{}'.format(n, value) self.tkk = result
def _update(self): """update tkk """ # we don't need to update the base TKK value when it is still valid now = math.floor(int(time.time() * 1000) / 3600000.0) if self.tkk and int(self.tkk.split('.')[0]) == now: return r = self.session.get(self.host) raw_tkk = self.RE_TKK.search(r.text) if raw_tkk: self.tkk = raw_tkk.group(1) return # this will be the same as python code after stripping out a reserved word 'var' code = unicode(self.RE_TKK.search(r.text).group(1)).replace('var ', '') # unescape special ascii characters such like a \x3d(=) if PY3: # pragma: no cover code = code.encode().decode('unicode-escape') else: # pragma: no cover code = code.decode('string_escape') if code: tree = ast.parse(code) visit_return = False operator = '+' n, keys = 0, dict(a=0, b=0) for node in ast.walk(tree): if isinstance(node, ast.Assign): name = node.targets[0].id if name in keys: if isinstance(node.value, ast.Num): keys[name] = node.value.n # the value can sometimes be negative elif isinstance(node.value, ast.UnaryOp) and \ isinstance(node.value.op, ast.USub): # pragma: nocover keys[name] = -node.value.operand.n elif isinstance(node, ast.Return): # parameters should be set after this point visit_return = True elif visit_return and isinstance(node, ast.Num): n = node.n elif visit_return and n > 0: # the default operator is '+' but implement some more for # all possible scenarios if isinstance(node, ast.Add): # pragma: nocover pass elif isinstance(node, ast.Sub): # pragma: nocover operator = '-' elif isinstance(node, ast.Mult): # pragma: nocover operator = '*' elif isinstance(node, ast.Pow): # pragma: nocover operator = '**' elif isinstance(node, ast.BitXor): # pragma: nocover operator = '^' # a safety way to avoid Exceptions clause = compile('{1}{0}{2}'.format( operator, keys['a'], keys['b']), '', 'eval') value = eval(clause, dict(__builtin__={})) result = '{}.{}'.format(n, value) self.tkk = result