sqlmap/tamper/randomblanks.py

34 lines
952 B
Python

import re
import string
from lib.core.common import randomRange
from lib.core.convert import urldecode
from lib.core.convert import urlencode
from lib.core.data import kb
"""
value -> value with inserted random blanks (e.g., INSERT->IN/**/S/**/ERT)
"""
def tamper(place, value):
retVal = value
if value:
if place != "URI":
retVal = urldecode(retVal)
for match in re.finditer(r"[A-Za-z_]+", retVal):
word = match.group()
if len(word) < 2:
continue
if word.upper() in kb.keywords:
newWord = word[0]
for i in xrange(1, len(word) - 1):
newWord += "%s%s" % ("/**/" if randomRange(0,1) else "", word[i])
newWord += word[-1]
retVal = retVal.replace(word, newWord)
if place != "URI":
retVal = urlencode(retVal)
return retVal