Server side MD5 function

[GEOSoft]

Did someone write a function that would get the MD5sum of a file on the server or am I dreaming?

I searched and couldn't find it.

Trying to help a newcomer with a script that needs to compare the MD5 sums of a file on the server with the MD5 sum of the last copy of the file that was downloaded.

[PsaltyDS]

Did someone write a function that would get the MD5sum of a file on the server or am I dreaming?

I searched and couldn't find it.

Trying to help a newcomer with a script that needs to compare the MD5 sums of a file on the server with the MD5 sum of the last copy of the file that was downloaded.

That's some wussy search'n right there!

Good topic by SkinnyWhiteGuy.

Example by Arses.

Example by SvenP.

Now go git'r done!

[GEOSoft]

That's some wussy search'n right there!

Good topic by SkinnyWhiteGuy.

Example by Arses.

Example by SvenP.

Now go git'r done!

You da man Psalty!! Pretty soon you'll be right up there with Jos and the other good ones.

The poor fellow doesn't want to post in the forums yet because

I don't want to look like a twit.

He'd rather leave that part to me.

Thanks my man.

[SmOke_N]

You da man Psalty!! Pretty soon you'll be right up there with Jos and the other good ones.

The poor fellow doesn't want to post in the forums yet because

He'd rather leave that part to me.

Thanks my man.

I couldn't help but laugh at that one.

[SkinnyWhiteGuy]

That's some wussy search'n right there!

Good topic by SkinnyWhiteGuy.

Example by Arses.

Example by SvenP.

Now go git'r done!

Been meaning to post about this since I found out, but with the latest version (beta or not), Arses function actually doesn't return the MD5 hash. It does return a hash, that for all reasoning is perfectly good for checking against itself. It just won't validate versus anything else that uses MD5, so it's not MD5. SvenP's (of course) is dead on. Here is a version of Svenp's that I worked up just the other day. All data is contained within this one function, and it works both on strings and binary data types (meaning you could use it on a file, albeit only as fast as AutoIt can go). Here it is:

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Func md5($sMessage)
    Local $Padding = Binary('0x8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000')
    Local $bytes = Binary($sMessage) + BinaryMid($Padding,1,BinaryLen($Padding) - Mod(BinaryLen($sMessage),64)) + BinaryMid(Binary(BinaryLen($sMessage)*8)+Binary(0),1,8)
    Local $x[BinaryLen($bytes)/4]
    For $i = 1 To BinaryLen($bytes) Step 4
        $x[($i-1)/4] = Dec(StringTrimLeft(Binary(BinaryMid($bytes,$i+3,1) + BinaryMid($bytes,$i+2,1) + BinaryMid($bytes,$i+1,1) + BinaryMid($bytes,$i,1)),2))
    Next
    Local $a = 0x67452301, $b = 0xEFCDAB89, $c = 0x98BADCFE, $d = 0x10325476
    
    For $k = 0 To UBound($x) - 1 Step 16
        $AA = $a
        $BB = $b
        $CC = $c
        $DD = $d
        
        ; The hex number in the middle of each of the following lines
        ; an element from the 64 element table constructed with
        ; T(i) = Int(4294967296 * Abs(Sin(i))) where i is 1 to 64.
        ;
        ; However, for speed we don't want to calculate the value every time.
        
        
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $c), BitAND((BitNOT($b)), $d)) + $x[$k + 0x0],0) + 0xD76AA478,0),0), 0x07,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $b), BitAND((BitNOT($a)), $c)) + $x[$k + 0x1],0) + 0xE8C7B756,0),0), 0x0C,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $a), BitAND((BitNOT($d)), $b)) + $x[$k + 0x2],0) + 0x242070DB,0),0), 0x11,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $d), BitAND((BitNOT($c)), $a)) + $x[$k + 0x3],0) + 0xC1BDCEEE,0),0), 0x16,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $c), BitAND((BitNOT($b)), $d)) + $x[$k + 0x4],0) + 0xF57C0FAF,0),0), 0x07,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $b), BitAND((BitNOT($a)), $c)) + $x[$k + 0x5],0) + 0x4787C62A,0),0), 0x0C,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $a), BitAND((BitNOT($d)), $b)) + $x[$k + 0x6],0) + 0xA8304613,0),0), 0x11,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $d), BitAND((BitNOT($c)), $a)) + $x[$k + 0x7],0) + 0xFD469501,0),0), 0x16,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $c), BitAND((BitNOT($b)), $d)) + $x[$k + 0x8],0) + 0x698098D8,0),0), 0x07,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $b), BitAND((BitNOT($a)), $c)) + $x[$k + 0x9],0) + 0x8B44F7AF,0),0), 0x0C,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $a), BitAND((BitNOT($d)), $b)) + $x[$k + 0xA],0) + 0xFFFF5BB1,0),0), 0x11,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $d), BitAND((BitNOT($c)), $a)) + $x[$k + 0xB],0) + 0x895CD7BE,0),0), 0x16,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $c), BitAND((BitNOT($b)), $d)) + $x[$k + 0xC],0) + 0x6B901122,0),0), 0x07,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $b), BitAND((BitNOT($a)), $c)) + $x[$k + 0xD],0) + 0xFD987193,0),0), 0x0C,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $a), BitAND((BitNOT($d)), $b)) + $x[$k + 0xE],0) + 0xA679438E,0),0), 0x11,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $d), BitAND((BitNOT($c)), $a)) + $x[$k + 0xF],0) + 0x49B40821,0),0), 0x16,"D")+$c,0)
        
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $d), BitAND($c, (BitNOT($d)))) + $x[$k + 0x1],0) + 0xF61E2562,0),0),0x05,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $c), BitAND($b, (BitNOT($c)))) + $x[$k + 0x6],0) + 0xC040B340,0),0),0x09,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $b), BitAND($a, (BitNOT($b)))) + $x[$k + 0xB],0) + 0x265E5A51,0),0),0x0E,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $a), BitAND($d, (BitNOT($a)))) + $x[$k + 0x0],0) + 0xE9B6C7AA,0),0),0x14,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $d), BitAND($c, (BitNOT($d)))) + $x[$k + 0x5],0) + 0xD62F105D,0),0),0x05,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $c), BitAND($b, (BitNOT($c)))) + $x[$k + 0xA],0) + 0x02441453,0),0),0x09,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $b), BitAND($a, (BitNOT($b)))) + $x[$k + 0xF],0) + 0xD8A1E681,0),0),0x0E,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $a), BitAND($d, (BitNOT($a)))) + $x[$k + 0x4],0) + 0xE7D3FBC8,0),0),0x14,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $d), BitAND($c, (BitNOT($d)))) + $x[$k + 0x9],0) + 0x21E1CDE6,0),0),0x05,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $c), BitAND($b, (BitNOT($c)))) + $x[$k + 0xE],0) + 0xC33707D6,0),0),0x09,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $b), BitAND($a, (BitNOT($b)))) + $x[$k + 0x3],0) + 0xF4D50D87,0),0),0x0E,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $a), BitAND($d, (BitNOT($a)))) + $x[$k + 0x8],0) + 0x455A14ED,0),0),0x14,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitOR(BitAND($b, $d), BitAND($c, (BitNOT($d)))) + $x[$k + 0xD],0) + 0xA9E3E905,0),0),0x05,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitOR(BitAND($a, $c), BitAND($b, (BitNOT($c)))) + $x[$k + 0x2],0) + 0xFCEFA3F8,0),0),0x09,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitOR(BitAND($d, $b), BitAND($a, (BitNOT($b)))) + $x[$k + 0x7],0) + 0x676F02D9,0),0),0x0E,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitOR(BitAND($c, $a), BitAND($d, (BitNOT($a)))) + $x[$k + 0xC],0) + 0x8D2A4C8A,0),0),0x14,"D")+$c,0)
        
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($b, $c, $d) + $x[$k + 0x5],0) + 0xFFFA3942,0),0),0x04,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($a, $b, $c) + $x[$k + 0x8],0) + 0x8771F681,0),0),0x0B,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($d, $a, $b) + $x[$k + 0xB],0) + 0x6D9D6122,0),0),0x10,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($c, $d, $a) + $x[$k + 0xE],0) + 0xFDE5380C,0),0),0x17,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($b, $c, $d) + $x[$k + 0x1],0) + 0xA4BEEA44,0),0),0x04,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($a, $b, $c) + $x[$k + 0x4],0) + 0x4BDECFA9,0),0),0x0B,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($d, $a, $b) + $x[$k + 0x7],0) + 0xF6BB4B60,0),0),0x10,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($c, $d, $a) + $x[$k + 0xA],0) + 0xBEBFBC70,0),0),0x17,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($b, $c, $d) + $x[$k + 0xD],0) + 0x289B7EC6,0),0),0x04,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($a, $b, $c) + $x[$k + 0x0],0) + 0xEAA127FA,0),0),0x0B,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($d, $a, $b) + $x[$k + 0x3],0) + 0xD4EF3085,0),0),0x10,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($c, $d, $a) + $x[$k + 0x6],0) + 0x04881D05,0),0),0x17,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($b, $c, $d) + $x[$k + 0x9],0) + 0xD9D4D039,0),0),0x04,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($a, $b, $c) + $x[$k + 0xC],0) + 0xE6DB99E5,0),0),0x0B,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($d, $a, $b) + $x[$k + 0xF],0) + 0x1FA27CF8,0),0),0x10,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($c, $d, $a) + $x[$k + 0x2],0) + 0xC4AC5665,0),0),0x17,"D")+$c,0)
        
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($c, BitOR($b, (BitNOT($d)))) + $x[$k + 0x0],0) + 0xF4292244,0),0),0x06,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($b, BitOR($a, (BitNOT($c)))) + $x[$k + 0x7],0) + 0x432AFF97,0),0),0x0A,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($a, BitOR($d, (BitNOT($b)))) + $x[$k + 0xE],0) + 0xAB9423A7,0),0),0x0F,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($d, BitOR($c, (BitNOT($a)))) + $x[$k + 0x5],0) + 0xFC93A039,0),0),0x15,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($c, BitOR($b, (BitNOT($d)))) + $x[$k + 0xC],0) + 0x655B59C3,0),0),0x06,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($b, BitOR($a, (BitNOT($c)))) + $x[$k + 0x3],0) + 0x8F0CCC92,0),0),0x0A,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($a, BitOR($d, (BitNOT($b)))) + $x[$k + 0xA],0) + 0xFFEFF47D,0),0),0x0F,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($d, BitOR($c, (BitNOT($a)))) + $x[$k + 0x1],0) + 0x85845DD1,0),0),0x15,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($c, BitOR($b, (BitNOT($d)))) + $x[$k + 0x8],0) + 0x6FA87E4F,0),0),0x06,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($b, BitOR($a, (BitNOT($c)))) + $x[$k + 0xF],0) + 0xFE2CE6E0,0),0),0x0A,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($a, BitOR($d, (BitNOT($b)))) + $x[$k + 0x6],0) + 0xA3014314,0),0),0x0F,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($d, BitOR($c, (BitNOT($a)))) + $x[$k + 0xD],0) + 0x4E0811A1,0),0),0x15,"D")+$c,0)
        $a = BitOR(BitRotate(BitOR($a + BitOR(BitOR(BitXOR($c, BitOR($b, (BitNOT($d)))) + $x[$k + 0x4],0) + 0xF7537E82,0),0),0x06,"D")+$b,0)
        $d = BitOR(BitRotate(BitOR($d + BitOR(BitOR(BitXOR($b, BitOR($a, (BitNOT($c)))) + $x[$k + 0xB],0) + 0xBD3AF235,0),0),0x0A,"D")+$a,0)
        $c = BitOR(BitRotate(BitOR($c + BitOR(BitOR(BitXOR($a, BitOR($d, (BitNOT($b)))) + $x[$k + 0x2],0) + 0x2AD7D2BB,0),0),0x0F,"D")+$d,0)
        $b = BitOR(BitRotate(BitOR($b + BitOR(BitOR(BitXOR($d, BitOR($c, (BitNOT($a)))) + $x[$k + 0x9],0) + 0xEB86D391,0),0),0x15,"D")+$c,0)
        
        $a = BitOR($a + $AA,0)
        $b = BitOR($b + $BB,0)
        $c = BitOR($c + $CC,0)
        $d = BitOR($d + $DD,0)
    Next
    
    Return StringLower(StringMid(Hex($a),7,2) & StringMid(Hex($a),5,2) & StringMid(Hex($a),3,2) & StringMid(Hex($a),1,2) & _
           StringMid(Hex($b),7,2) & StringMid(Hex($b),5,2) & StringMid(Hex($b),3,2) & StringMid(Hex($b),1,2) & _
           StringMid(Hex($c),7,2) & StringMid(Hex($c),5,2) & StringMid(Hex($c),3,2) & StringMid(Hex($c),1,2) & _
           StringMid(Hex($d),7,2) & StringMid(Hex($d),5,2) & StringMid(Hex($d),3,2) & StringMid(Hex($d),1,2))
EndFunc   ;==>MD5

Yeah, it's big, and yeah, does the same thing as Sven's does (it's actually just Sven's refactored), but it does it all in one function, so putting it in a header and including it won't accidentally cause problems with multiple functions, making sure one thing is called before the other, etc...

[GEOSoft]

@SkinnyWhiteGuy

Thanks. I'll send it to him

@SmOKe_N

Don't go to the twit part. My feelings are easily injured. Sometimes criticaly injured.

[SmOke_N]

@SkinnyWhiteGuy

Thanks. I'll send it to him

@SmOKe_N

Don't go to the twit part. My feelings are easily injured. Sometimes criticaly injured.

I wasn't being mean, I was laughing at how you worded what you said.

You know, in the last month, I've learned two new words... both 4 letters, both start with "tw" and both end in "t"... what a country.