Ankron 
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Joined: Jan 2015
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RE: UO Packets
ok, so I've been trying to convert the compression code I found for the pole server to PHP with out much luck.
Here's the orignal code:
Code:
static uint[,] bit_table = new uint[,]
{
{0x02, 0x00}, {0x05, 0x1F}, {0x06, 0x22}, {0x07, 0x34}, {0x07, 0x75}, {0x06, 0x28}, {0x06, 0x3B}, {0x07, 0x32},
{0x08, 0xE0}, {0x08, 0x62}, {0x07, 0x56}, {0x08, 0x79}, {0x09, 0x19D}, {0x08, 0x97}, {0x06, 0x2A}, {0x07, 0x57},
{0x08, 0x71}, {0x08, 0x5B}, {0x09, 0x1CC}, {0x08, 0xA7}, {0x07, 0x25}, {0x07, 0x4F}, {0x08, 0x66}, {0x08, 0x7D},
{0x09, 0x191}, {0x09, 0x1CE}, {0x07, 0x3F}, {0x09, 0x90}, {0x08, 0x59}, {0x08, 0x7B}, {0x08, 0x91}, {0x08, 0xC6},
{0x06, 0x2D}, {0x09, 0x186}, {0x08, 0x6F}, {0x09, 0x93}, {0x0A, 0x1CC}, {0x08, 0x5A}, {0x0A, 0x1AE}, {0x0A, 0x1C0},
{0x09, 0x148}, {0x09, 0x14A}, {0x09, 0x82}, {0x0A, 0x19F}, {0x09, 0x171}, {0x09, 0x120}, {0x09, 0xE7}, {0x0A, 0x1F3},
{0x09, 0x14B}, {0x09, 0x100}, {0x09, 0x190}, {0x06, 0x13}, {0x09, 0x161}, {0x09, 0x125}, {0x09, 0x133}, {0x09, 0x195},
{0x09, 0x173}, {0x09, 0x1CA}, {0x09, 0x86}, {0x09, 0x1E9}, {0x09, 0xDB}, {0x09, 0x1EC}, {0x09, 0x8B}, {0x09, 0x85},
{0x05, 0x0A}, {0x08, 0x96}, {0x08, 0x9C}, {0x09, 0x1C3}, {0x09, 0x19C}, {0x09, 0x8F}, {0x09, 0x18F}, {0x09, 0x91},
{0x09, 0x87}, {0x09, 0xC6}, {0x09, 0x177}, {0x09, 0x89}, {0x09, 0xD6}, {0x09, 0x8C}, {0x09, 0x1EE}, {0x09, 0x1EB},
{0x09, 0x84}, {0x09, 0x164}, {0x09, 0x175}, {0x09, 0x1CD}, {0x08, 0x5E}, {0x09, 0x88}, {0x09, 0x12B}, {0x09, 0x172},
{0x09, 0x10A}, {0x09, 0x8D}, {0x09, 0x13A}, {0x09, 0x11C}, {0x0A, 0x1E1}, {0x0A, 0x1E0}, {0x09, 0x187}, {0x0A, 0x1DC},
{0x0A, 0x1DF}, {0x07, 0x74}, {0x09, 0x19F}, {0x08, 0x8D}, {0x08, 0xE4}, {0x07, 0x79}, {0x09, 0xEA}, {0x09, 0xE1},
{0x08, 0x40}, {0x07, 0x41}, {0x09, 0x10B}, {0x09, 0xB0}, {0x08, 0x6A}, {0x08, 0xC1}, {0x07, 0x71}, {0x07, 0x78},
{0x08, 0xB1}, {0x09, 0x14C}, {0x07, 0x43}, {0x08, 0x76}, {0x07, 0x66}, {0x07, 0x4D}, {0x09, 0x8A}, {0x06, 0x2F},
{0x08, 0xC9}, {0x09, 0xCE}, {0x09, 0x149}, {0x09, 0x160}, {0x0A, 0x1BA}, {0x0A, 0x19E}, {0x0A, 0x39F}, {0x09, 0xE5},
{0x09, 0x194}, {0x09, 0x184}, {0x09, 0x126}, {0x07, 0x30}, {0x08, 0x6C}, {0x09, 0x121}, {0x09, 0x1E8}, {0x0A, 0x1C1},
{0x0A, 0x11D}, {0x0A, 0x163}, {0x0A, 0x385}, {0x0A, 0x3DB}, {0x0A, 0x17D}, {0x0A, 0x106}, {0x0A, 0x397}, {0x0A, 0x24E},
{0x07, 0x2E}, {0x08, 0x98}, {0x0A, 0x33C}, {0x0A, 0x32E}, {0x0A, 0x1E9}, {0x09, 0xBF}, {0x0A, 0x3DF}, {0x0A, 0x1DD},
{0x0A, 0x32D}, {0x0A, 0x2ED}, {0x0A, 0x30B}, {0x0A, 0x107}, {0x0A, 0x2E8}, {0x0A, 0x3DE}, {0x0A, 0x125}, {0x0A, 0x1E8},
{0x09, 0xE9}, {0x0A, 0x1CD}, {0x0A, 0x1B5}, {0x09, 0x165}, {0x0A, 0x232}, {0x0A, 0x2E1}, {0x0B, 0x3AE}, {0x0B, 0x3C6},
{0x0B, 0x3E2}, {0x0A, 0x205}, {0x0A, 0x29A}, {0x0A, 0x248}, {0x0A, 0x2CD}, {0x0A, 0x23B}, {0x0B, 0x3C5}, {0x0A, 0x251},
{0x0A, 0x2E9}, {0x0A, 0x252}, {0x09, 0x1EA}, {0x0B, 0x3A0}, {0x0B, 0x391}, {0x0A, 0x23C}, {0x0B, 0x392}, {0x0B, 0x3D5},
{0x0A, 0x233}, {0x0A, 0x2CC}, {0x0B, 0x390}, {0x0A, 0x1BB}, {0x0B, 0x3A1}, {0x0B, 0x3C4}, {0x0A, 0x211}, {0x0A, 0x203},
{0x09, 0x12A}, {0x0A, 0x231}, {0x0B, 0x3E0}, {0x0A, 0x29B}, {0x0B, 0x3D7}, {0x0A, 0x202}, {0x0B, 0x3AD}, {0x0A, 0x213},
{0x0A, 0x253}, {0x0A, 0x32C}, {0x0A, 0x23D}, {0x0A, 0x23F}, {0x0A, 0x32F}, {0x0A, 0x11C}, {0x0A, 0x384}, {0x0A, 0x31C},
{0x0A, 0x17C}, {0x0A, 0x30A}, {0x0A, 0x2E0}, {0x0A, 0x276}, {0x0A, 0x250}, {0x0B, 0x3E3}, {0x0A, 0x396}, {0x0A, 0x18F},
{0x0A, 0x204}, {0x0A, 0x206}, {0x0A, 0x230}, {0x0A, 0x265}, {0x0A, 0x212}, {0x0A, 0x23E}, {0x0B, 0x3AC}, {0x0B, 0x393},
{0x0B, 0x3E1}, {0x0A, 0x1DE}, {0x0B, 0x3D6}, {0x0A, 0x31D}, {0x0B, 0x3E5}, {0x0B, 0x3E4}, {0x0A, 0x207}, {0x0B, 0x3C7},
{0x0A, 0x277}, {0x0B, 0x3D4}, {0x08, 0xC0}, {0x0A, 0x162}, {0x0A, 0x3DA}, {0x0A, 0x124}, {0x0A, 0x1B4}, {0x0A, 0x264},
{0x0A, 0x33D}, {0x0A, 0x1D1}, {0x0A, 0x1AF}, {0x0A, 0x39E}, {0x0A, 0x24F}, {0x0B, 0x373}, {0x0A, 0x249}, {0x0B, 0x372},
{0x09, 0x167}, {0x0A, 0x210}, {0x0A, 0x23A}, {0x0A, 0x1B8}, {0x0B, 0x3AF}, {0x0A, 0x18E}, {0x0A, 0x2EC}, {0x07, 0x62},
{0x04, 0x0D}
}
byte[] Compress(byte[] source, int length)
{
byte[] retval = new byte[0];
int nrBits = 0, cBits = 0, val = 0;
byte current = 0;
if(source == null || length == 0) return null;
for(int i = 0; i < length; i++)
{
nrBits = (int)bit_table[source[i], 0] - 1;
val = (int)bit_table[source[i], 1];
for(int n = nrBits; n >= 0; n--)
{
int x = (val >> n) % 2;
current <<= 1;
current += (byte)x;
cBits++;
if(cBits == 8)
{
byte[] temp = new byte[retval.Length + 1];
retval.CopyTo(temp, 0);
temp[temp.Length - 1] = current;
retval = new byte[temp.Length];
temp.CopyTo(retval, 0);
temp = null;
cBits = 0;
}
}
}
nrBits = (int)bit_table[256, 0] - 1;
val = (int)bit_table[256, 1];
for(int n = nrBits; n >= 0; n--)
{
int x = (val >> n) % 2;
current <<= 1;
current += (byte)x;
cBits++;
if(cBits == 8)
{
byte[] temp = new byte[retval.Length + 1];
retval.CopyTo(temp, 0);
temp[temp.Length - 1] = current;
retval = new byte[temp.Length];
temp.CopyTo(retval, 0);
temp = null;
cBits = 0;
}
}
while(cBits != 0)
{
current <<= 1;
cBits++;
if(cBits == 8)
{
byte[] temp = new byte[retval.Length + 1];
retval.CopyTo(temp, 0);
temp[temp.Length - 1] = current;
retval = new byte[temp.Length];
temp.CopyTo(retval, 0);
temp = null
cBits = 0;
}
}
return retval;
}
Here's what I made
Code:
function build_dictionary(){
$this->bit_table=array(
array(hexdec("02"), hexdec("0000")), array(hexdec("05"), hexdec("001F")), array(hexdec("06"), hexdec("0022")), array(hexdec("07"), hexdec("0034")), array(hexdec("07"), hexdec("0075")), array(hexdec("06"), hexdec("0028")), array(hexdec("06"), hexdec("003B")), array(hexdec("07"), hexdec("0032")),
array(hexdec("08"), hexdec("00E0")), array(hexdec("08"), hexdec("0062")), array(hexdec("07"), hexdec("0056")), array(hexdec("08"), hexdec("0079")), array(hexdec("09"), hexdec("019D")), array(hexdec("08"), hexdec("0097")), array(hexdec("06"), hexdec("002A")), array(hexdec("07"), hexdec("0057")),
array(hexdec("08"), hexdec("0071")), array(hexdec("08"), hexdec("005B")), array(hexdec("09"), hexdec("01CC")), array(hexdec("08"), hexdec("00A7")), array(hexdec("07"), hexdec("0025")), array(hexdec("07"), hexdec("004F")), array(hexdec("08"), hexdec("0066")), array(hexdec("08"), hexdec("007D")),
array(hexdec("09"), hexdec("0191")), array(hexdec("09"), hexdec("01CE")), array(hexdec("07"), hexdec("003F")), array(hexdec("09"), hexdec("0090")), array(hexdec("08"), hexdec("0059")), array(hexdec("08"), hexdec("007B")), array(hexdec("08"), hexdec("0091")), array(hexdec("08"), hexdec("00C6")),
array(hexdec("06"), hexdec("002D")), array(hexdec("09"), hexdec("0186")), array(hexdec("08"), hexdec("006F")), array(hexdec("09"), hexdec("0093")), array(hexdec("0A"), hexdec("01CC")), array(hexdec("08"), hexdec("005A")), array(hexdec("0A"), hexdec("01AE")), array(hexdec("0A"), hexdec("01C0")),
array(hexdec("09"), hexdec("0148")), array(hexdec("09"), hexdec("014A")), array(hexdec("09"), hexdec("0082")), array(hexdec("0A"), hexdec("019F")), array(hexdec("09"), hexdec("0171")), array(hexdec("09"), hexdec("0120")), array(hexdec("09"), hexdec("00E7")), array(hexdec("0A"), hexdec("01F3")),
array(hexdec("09"), hexdec("014B")), array(hexdec("09"), hexdec("0100")), array(hexdec("09"), hexdec("0190")), array(hexdec("06"), hexdec("0013")), array(hexdec("09"), hexdec("0161")), array(hexdec("09"), hexdec("0125")), array(hexdec("09"), hexdec("0133")), array(hexdec("09"), hexdec("0195")),
array(hexdec("09"), hexdec("0173")), array(hexdec("09"), hexdec("01CA")), array(hexdec("09"), hexdec("0086")), array(hexdec("09"), hexdec("01E9")), array(hexdec("09"), hexdec("00DB")), array(hexdec("09"), hexdec("01EC")), array(hexdec("09"), hexdec("008B")), array(hexdec("09"), hexdec("0085")),
array(hexdec("05"), hexdec("000A")), array(hexdec("08"), hexdec("0096")), array(hexdec("08"), hexdec("009C")), array(hexdec("09"), hexdec("01C3")), array(hexdec("09"), hexdec("019C")), array(hexdec("09"), hexdec("008F")), array(hexdec("09"), hexdec("018F")), array(hexdec("09"), hexdec("0091")),
array(hexdec("09"), hexdec("0087")), array(hexdec("09"), hexdec("00C6")), array(hexdec("09"), hexdec("0177")), array(hexdec("09"), hexdec("0089")), array(hexdec("09"), hexdec("00D6")), array(hexdec("09"), hexdec("008C")), array(hexdec("09"), hexdec("01EE")), array(hexdec("09"), hexdec("01EB")),
array(hexdec("09"), hexdec("0084")), array(hexdec("09"), hexdec("0164")), array(hexdec("09"), hexdec("0175")), array(hexdec("09"), hexdec("01CD")), array(hexdec("08"), hexdec("005E")), array(hexdec("09"), hexdec("0088")), array(hexdec("09"), hexdec("012B")), array(hexdec("09"), hexdec("0172")),
array(hexdec("09"), hexdec("010A")), array(hexdec("09"), hexdec("008D")), array(hexdec("09"), hexdec("013A")), array(hexdec("09"), hexdec("011C")), array(hexdec("0A"), hexdec("01E1")), array(hexdec("0A"), hexdec("01E0")), array(hexdec("09"), hexdec("0187")), array(hexdec("0A"), hexdec("01DC")),
array(hexdec("0A"), hexdec("01DF")), array(hexdec("07"), hexdec("0074")), array(hexdec("09"), hexdec("019F")), array(hexdec("08"), hexdec("008D")), array(hexdec("08"), hexdec("00E4")), array(hexdec("07"), hexdec("0079")), array(hexdec("09"), hexdec("00EA")), array(hexdec("09"), hexdec("00E1")),
array(hexdec("08"), hexdec("0040")), array(hexdec("07"), hexdec("0041")), array(hexdec("09"), hexdec("010B")), array(hexdec("09"), hexdec("00B0")), array(hexdec("08"), hexdec("006A")), array(hexdec("08"), hexdec("00C1")), array(hexdec("07"), hexdec("0071")), array(hexdec("07"), hexdec("0078")),
array(hexdec("08"), hexdec("00B1")), array(hexdec("09"), hexdec("014C")), array(hexdec("07"), hexdec("0043")), array(hexdec("08"), hexdec("0076")), array(hexdec("07"), hexdec("0066")), array(hexdec("07"), hexdec("004D")), array(hexdec("09"), hexdec("008A")), array(hexdec("06"), hexdec("002F")),
array(hexdec("08"), hexdec("00C9")), array(hexdec("09"), hexdec("00CE")), array(hexdec("09"), hexdec("0149")), array(hexdec("09"), hexdec("0160")), array(hexdec("0A"), hexdec("01BA")), array(hexdec("0A"), hexdec("019E")), array(hexdec("0A"), hexdec("039F")), array(hexdec("09"), hexdec("00E5")),
array(hexdec("09"), hexdec("0194")), array(hexdec("09"), hexdec("0184")), array(hexdec("09"), hexdec("0126")), array(hexdec("07"), hexdec("0030")), array(hexdec("08"), hexdec("006C")), array(hexdec("09"), hexdec("0121")), array(hexdec("09"), hexdec("01E8")), array(hexdec("0A"), hexdec("01C1")),
array(hexdec("0A"), hexdec("011D")), array(hexdec("0A"), hexdec("0163")), array(hexdec("0A"), hexdec("0385")), array(hexdec("0A"), hexdec("03DB")), array(hexdec("0A"), hexdec("017D")), array(hexdec("0A"), hexdec("0106")), array(hexdec("0A"), hexdec("0397")), array(hexdec("0A"), hexdec("024E")),
array(hexdec("07"), hexdec("002E")), array(hexdec("08"), hexdec("0098")), array(hexdec("0A"), hexdec("033C")), array(hexdec("0A"), hexdec("032E")), array(hexdec("0A"), hexdec("01E9")), array(hexdec("09"), hexdec("00BF")), array(hexdec("0A"), hexdec("03DF")), array(hexdec("0A"), hexdec("01DD")),
array(hexdec("0A"), hexdec("032D")), array(hexdec("0A"), hexdec("02ED")), array(hexdec("0A"), hexdec("030B")), array(hexdec("0A"), hexdec("0107")), array(hexdec("0A"), hexdec("02E8")), array(hexdec("0A"), hexdec("03DE")), array(hexdec("0A"), hexdec("0125")), array(hexdec("0A"), hexdec("01E8")),
array(hexdec("09"), hexdec("00E9")), array(hexdec("0A"), hexdec("01CD")), array(hexdec("0A"), hexdec("01B5")), array(hexdec("09"), hexdec("0165")), array(hexdec("0A"), hexdec("0232")), array(hexdec("0A"), hexdec("02E1")), array(hexdec("0B"), hexdec("03AE")), array(hexdec("0B"), hexdec("03C6")),
array(hexdec("0B"), hexdec("03E2")), array(hexdec("0A"), hexdec("0205")), array(hexdec("0A"), hexdec("029A")), array(hexdec("0A"), hexdec("0248")), array(hexdec("0A"), hexdec("02CD")), array(hexdec("0A"), hexdec("023B")), array(hexdec("0B"), hexdec("03C5")), array(hexdec("0A"), hexdec("0251")),
array(hexdec("0A"), hexdec("02E9")), array(hexdec("0A"), hexdec("0252")), array(hexdec("09"), hexdec("01EA")), array(hexdec("0B"), hexdec("03A0")), array(hexdec("0B"), hexdec("0391")), array(hexdec("0A"), hexdec("023C")), array(hexdec("0B"), hexdec("0392")), array(hexdec("0B"), hexdec("03D5")),
array(hexdec("0A"), hexdec("0233")), array(hexdec("0A"), hexdec("02CC")), array(hexdec("0B"), hexdec("0390")), array(hexdec("0A"), hexdec("01BB")), array(hexdec("0B"), hexdec("03A1")), array(hexdec("0B"), hexdec("03C4")), array(hexdec("0A"), hexdec("0211")), array(hexdec("0A"), hexdec("0203")),
array(hexdec("09"), hexdec("012A")), array(hexdec("0A"), hexdec("0231")), array(hexdec("0B"), hexdec("03E0")), array(hexdec("0A"), hexdec("029B")), array(hexdec("0B"), hexdec("03D7")), array(hexdec("0A"), hexdec("0202")), array(hexdec("0B"), hexdec("03AD")), array(hexdec("0A"), hexdec("0213")),
array(hexdec("0A"), hexdec("0253")), array(hexdec("0A"), hexdec("032C")), array(hexdec("0A"), hexdec("023D")), array(hexdec("0A"), hexdec("023F")), array(hexdec("0A"), hexdec("032F")), array(hexdec("0A"), hexdec("011C")), array(hexdec("0A"), hexdec("0384")), array(hexdec("0A"), hexdec("031C")),
array(hexdec("0A"), hexdec("017C")), array(hexdec("0A"), hexdec("030A")), array(hexdec("0A"), hexdec("02E0")), array(hexdec("0A"), hexdec("0276")), array(hexdec("0A"), hexdec("0250")), array(hexdec("0B"), hexdec("03E3")), array(hexdec("0A"), hexdec("0396")), array(hexdec("0A"), hexdec("018F")),
array(hexdec("0A"), hexdec("0204")), array(hexdec("0A"), hexdec("0206")), array(hexdec("0A"), hexdec("0230")), array(hexdec("0A"), hexdec("0265")), array(hexdec("0A"), hexdec("0212")), array(hexdec("0A"), hexdec("023E")), array(hexdec("0B"), hexdec("03AC")), array(hexdec("0B"), hexdec("0393")),
array(hexdec("0B"), hexdec("03E1")), array(hexdec("0A"), hexdec("01DE")), array(hexdec("0B"), hexdec("03D6")), array(hexdec("0A"), hexdec("031D")), array(hexdec("0B"), hexdec("03E5")), array(hexdec("0B"), hexdec("03E4")), array(hexdec("0A"), hexdec("0207")), array(hexdec("0B"), hexdec("03C7")),
array(hexdec("0A"), hexdec("0277")), array(hexdec("0B"), hexdec("03D4")), array(hexdec("08"), hexdec("00C0")), array(hexdec("0A"), hexdec("0162")), array(hexdec("0A"), hexdec("03DA")), array(hexdec("0A"), hexdec("0124")), array(hexdec("0A"), hexdec("01B4")), array(hexdec("0A"), hexdec("0264")),
array(hexdec("0A"), hexdec("033D")), array(hexdec("0A"), hexdec("01D1")), array(hexdec("0A"), hexdec("01AF")), array(hexdec("0A"), hexdec("039E")), array(hexdec("0A"), hexdec("024F")), array(hexdec("0B"), hexdec("0373")), array(hexdec("0A"), hexdec("0249")), array(hexdec("0B"), hexdec("0372")),
array(hexdec("09"), hexdec("0167")), array(hexdec("0A"), hexdec("0210")), array(hexdec("0A"), hexdec("023A")), array(hexdec("0A"), hexdec("01B8")), array(hexdec("0B"), hexdec("03AF")), array(hexdec("0A"), hexdec("018E")), array(hexdec("0A"), hexdec("02EC")), array(hexdec("07"), hexdec("0062")),
array(hexdec("04"), hexdec("000D"))
);
}
function Compress($string)
{
if (!isset($this->bit_table)){
$this->build_dictionary();
}
$nrBits = 0;
$cBits = 0;
$val = 0;
$current = 0;
$retval="";
$length=strlen($string);
echo "Encoding Packet: \n";
if($string == null || $length == 0){
return null;
}else{
for($i = 0; $i < $length; $i++)
{
$bits = $this->bit_table[ord(substr($string, $i, 1))];
$nrBits = $bits[0];
$val = $bits[1];
for($n = $nrBits; $n >= 0; $n--)
{
$x = ($val >> $n) % 2;
$current <<= 1;
$current += $x;
$cBits++;
if($cBits == 8)
{
$retval= $current;
$cBits=0;
}
}
}
$bits = $this->bit_table[256];
$nrBits = $bits[0];
$val = $bits[1];
for($n = $nrBits; $n >= 0; $n--)
{
$x = ($val >> $n) % 2;
$current = $current << 1;
$current += $x;
$cBits++;
if($cBits == 8)
{
$retval= $current;
$cBits=0;
}
}
while($cBits != 0)
{
$current <<= 1;
$cBits++;
if($cBits == 8)
{
$retval=$current;
$current=0;
$cBits=0;
}
}
$string=dechex($retval);
echo $retval." ".$string."\n";
$retval="";
for($i=strlen($retval)/2;$i=>0; $i--){
$retval.=chr(hexdec(substr($string, ($i-2)*2, 2)));
}
echo strlen($retval)."\n";
return $retval;
}
}
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