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This commit is contained in:
Miroslav Stampar 2010-05-26 11:14:22 +00:00
parent 1a3dfd8ced
commit ce29c841cf
2 changed files with 19 additions and 3 deletions
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7
lib/techniques/blind/inference.py
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@ -57,7 +57,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
asciiTbl = getCharset(charsetType)
kb.partRun = getPartRun() if conf.useCommonPrediction else None
kb.partRun = getPartRun() if conf.useCommonPrediction else None #set kb.partRun in case common-prediction used
if "LENGTH(" in expression or "LEN(" in expression:
firstChar = 0
@ -372,16 +372,20 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
index += 1
charStart = time.time()
#common prediction (a.k.a. good samaritan)
if conf.useCommonPrediction:
singleValue, predictedCharset, otherCharset = getGoodSamaritanParameters(kb.partRun, finalValue, asciiTbl)
val = None
#if there is no singleValue (single match from common-outputs.txt) use the returned predictedCharset
if singleValue is None:
val = getChar(index, predictedCharset, False) if predictedCharset else None
else:
#one shot query containing equals singleValue
query = agent.prefixQuery(" %s" % safeStringFormat('AND (%s) = %s', (expressionUnescaped, unescaper.unescape('\'%s\'' % singleValue))))
query = agent.postfixQuery(query)
result = Request.queryPage(urlencode(agent.payload(newValue=query)))
#did we have luck?
if result:
dataToSessionFile(replaceNewlineTabs(singleValue[index-1:]))
if showEta:
@ -390,6 +394,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
dataToStdout(singleValue[index-1:])
finalValue = singleValue
break
#if we had no luck with singleValue and predictedCharset use the returned otherCharset
if not val:
val = getChar(index, otherCharset)
else: