Function tryHint

lib/techniques/blind/inference.py:211–235

(idx)

                dataToStdout("\r[%s] [INFO] retrieved: " % time.strftime("%X"))

        def tryHint(idx):
            with kb.locks.hint:
                hintValue = kb.hintValue

            if payload is not None and len(hintValue or "") > 0 and len(hintValue) >= idx:
                if "'%s'" % CHAR_INFERENCE_MARK in payload:
                    posValue = hintValue[idx - 1]
                else:
                    posValue = ord(hintValue[idx - 1])

                markingValue = "'%s'" % CHAR_INFERENCE_MARK
                unescapedCharValue = unescaper.escape("'%s'" % decodeIntToUnicode(posValue))
                forgedPayload = agent.extractPayload(payload) or ""
                forgedPayload = forgedPayload.replace(markingValue, unescapedCharValue)
                forgedPayload = safeStringFormat(forgedPayload.replace(INFERENCE_GREATER_CHAR, INFERENCE_EQUALS_CHAR), (expressionUnescaped, idx, posValue))
                result = Request.queryPage(agent.replacePayload(payload, forgedPayload), timeBasedCompare=timeBasedCompare, raise404=False)
                incrementCounter(getTechnique())

                if result:
                    return hintValue[idx - 1]

            with kb.locks.hint:
                kb.hintValue = ""

            return None

        def validateChar(idx, value):
            """