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Maximus1

ascending letter generator

6 posts in this topic

hi i want to write a program which works like a brute force attack.

i need it because i want to download pages from a website and this is the only way i see to get on the last part of the link.

the following makes a random generated 5 char "word" but is not exat what i need.

$zeichen = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
$string = StringSplit ($zeichen,"")
$anzahl_der_zeichen = 5
$zeichen2 = ""
    
For $i = 1 To $anzahl_der_zeichen
        $zeichen2 &= $string[Random(1,UBound ($string)-1)]
    Next
    MsgBox (0,"",$zeichen2)

i need it like this:

AAAAA

AAAAB

.

.

.

AAAAZ

AAABA

.

.

.

can you help me?

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What your looking for is called "Permutation" -> Use with forum search feature. (Some completely ready to go code available.)


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#3 ·  Posted (edited)

Hmm... 26 ^ 5 = 11,881,376. That's one big-ass list of strings.

I've commited the sin of calling a routine recursively, but I can't see doing it in less lines of code:

#include <Array.au3>
Global $len = 3
Global $Array_Idx, $Array_Max = 26 ^ $len, $Array[$Array_Max + 1] = [$Array_Max]
Letter_Generator($len)
If $len < 5 Then
    _ArrayDisplay($Array)
Else
    MsgBox(1,"", "Element " & $Array_Max & " = " & $Array[$Array_Max])
EndIf

;===============================================================================
Func Letter_Generator($idx, $tmp = "")
    $idx -= 1
    For $x = 1 To 26
        If $idx Then
            Letter_Generator($idx, $tmp & Chr(64 + $x))
        Else
            $Array_Idx += 1
            $Array[$Array_Idx] = $tmp & Chr(64 + $x)
        EndIf
    Next
EndFunc

If you call it with "5" as the parameter, then go have a cup of coffee while it's running, it may be done when you get back.

Edit: The routine works with the bigger numbers, and is fairly fast. It's the _ArrayDisplay() I stuck at the end that takes all day and eventually kills my 2GB machine with an "error allocating memory" error when the $len parameter is > 4. Maybe asking to build and display a ListView with 12 million elements is a bit much :blink: I put a "safety valve" in the demo.

Edit2: If you don't need them in an array, you could scrap all that and just do this:

Letter_Generator(5)

;===============================================================================
Func Letter_Generator($idx, $tmp = "")
    $idx -= 1
    For $x = 1 To 26
        If $idx Then
            Letter_Generator($idx, $tmp & Chr(64 + $x))
        Else
            ToolTip($tmp & Chr(64 + $x))
            ; Process($tmp & Chr(64 + $x)) ; call your own function for individual processing here
        EndIf
    Next
EndFunc
Edited by Spiff59

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i`ve generated a permutation file (79MB) but there must be a way to make one "word" and work with it. after the job is done the next will processed.

Generate permutation

AAAAA ----> work with it

Generate next permutation

AAAAB ----> work with it

.

.

.

.

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Looks like I posted my last edit the exact same time that you just posted.

Replacing the (slow) Tooltip() in the second example with a call to your own function will do what you want.

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If you provide some of the exact text you want and a sample of how it shows in the string of the html code, there may be a method totaly different to what you are trying to do.


George

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