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Fix for an Issue #447

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This commit is contained in:
stamparm 2013-05-07 13:25:30 +02:00
parent 427d88b194
commit 03be419d5d
1 changed files with 9 additions and 7 deletions
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16
lib/techniques/blind/inference.py
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@ -102,19 +102,19 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
firstChar = 0
elif dump and conf.firstChar is not None and (isinstance(conf.firstChar, int) or (isinstance(conf.firstChar, basestring) and conf.firstChar.isdigit())):
firstChar = int(conf.firstChar) - 1
elif firstChar is None:
firstChar = 0
elif (isinstance(firstChar, basestring) and firstChar.isdigit()) or isinstance(firstChar, int):
elif isinstance(firstChar, basestring) and firstChar.isdigit() or isinstance(firstChar, int):
firstChar = int(firstChar) - 1
else:
firstChar = 0
if "LENGTH(" in expression.upper() or "LEN(" in expression.upper():
lastChar = 0
elif dump and conf.lastChar is not None and (isinstance(conf.lastChar, int) or (isinstance(conf.lastChar, basestring) and conf.lastChar.isdigit())):
lastChar = int(conf.lastChar)
elif lastChar in (None, "0"):
lastChar = 0
elif (isinstance(lastChar, basestring) and lastChar.isdigit()) or isinstance(lastChar, int):
elif isinstance(lastChar, basestring) and lastChar.isdigit() or isinstance(lastChar, int):
lastChar = int(lastChar)
else:
lastChar = 0
if Backend.getDbms():
_, _, _, _, _, _, fieldToCastStr, _ = agent.getFields(expression)
@ -124,8 +124,10 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
else:
expressionUnescaped = unescaper.escape(expression)
if length and isinstance(length, basestring) and length.isdigit():
if isinstance(length, basestring) and length.isdigit() or isinstance(length, int):
length = int(length)
else:
length = None
if length == 0:
return 0, ""