XCache is a fast, stable PHP opcode cacher that has been proven and is now running on production servers under high load. https://xcache.lighttpd.net/
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<?php
define('INDENT', "\t");
ini_set('error_reporting', E_ALL);
function color($str, $color = 33)
{
return "\x1B[{$color}m$str\x1B[0m";
}
function str($code, $indent = '') // {{{
{
if (is_array($code)) {
$array = array();
foreach ($code as $key => $value) {
$array[$key] = str($value, $indent);
}
return $array;
}
if (is_object($code)) {
$code = foldToCode($code, $indent);
return $code->toCode($indent);
}
return (string) $code;
}
// }}}
function foldToCode($src, $indent = '') // {{{ wrap or rewrap anything to Decompiler_Code
{
if (is_array($indent)) {
$indent = $indent['indent'];
}
if (!is_object($src)) {
return new Decompiler_Code($src);
}
if (!method_exists($src, 'toCode')) {
var_dump($src);
exit('no toCode');
}
if (get_class($src) != 'Decompiler_Code') {
// rewrap it
$src = new Decompiler_Code($src->toCode($indent));
}
return $src;
}
// }}}
function value($value) // {{{
{
$spec = xcache_get_special_value($value);
if (isset($spec)) {
$value = $spec;
if (!is_array($value)) {
// constant
return $value;
}
}
if (is_a($value, 'Decompiler_Object')) {
// use as is
}
else if (is_array($value)) {
$value = new Decompiler_ConstArray($value);
}
else {
$value = new Decompiler_Value($value);
}
return $value;
}
// }}}
function unquoteName_($str, $asProperty, $indent = '') // {{{
{
$str = str($str, $indent);
if (preg_match("!^'[\\w_][\\w\\d_\\\\]*'\$!", $str)) {
return str_replace('\\\\', '\\', substr($str, 1, -1));
}
else if ($asProperty) {
return "{" . $str . "}";
}
else {
return $str;
}
}
// }}}
function unquoteProperty($str, $indent = '') // {{{
{
return unquoteName_($str, true, $indent);
}
// }}}
function unquoteName($str, $indent = '') // {{{
{
return unquoteName_($str, false, $indent);
}
// }}}
class Decompiler_Object // {{{
{
}
// }}}
class Decompiler_Value extends Decompiler_Object // {{{
{
var $value;
function Decompiler_Value($value = null)
{
$this->value = $value;
}
function toCode($indent)
{
$code = var_export($this->value, true);
if (gettype($this->value) == 'string') {
switch ($this->value) {
case "\r":
return '"\\r"';
case "\n":
return '"\\n"';
case "\r\n":
return '"\\r\\n"';
}
$code = str_replace("\r\n", '\' . "\\r\\n" . \'', $code);
$code = str_replace("\r", '\' . "\\r" . \'', $code);
$code = str_replace("\n", '\' . "\\n" . \'', $code);
}
return $code;
}
}
// }}}
class Decompiler_Code extends Decompiler_Object // {{{
{
var $src;
function Decompiler_Code($src)
{
assert('isset($src)');
$this->src = $src;
}
function toCode($indent)
{
return $this->src;
}
}
// }}}
class Decompiler_Binop extends Decompiler_Code // {{{
{
var $opc;
var $op1;
var $op2;
var $parent;
var $indent;
function Decompiler_Binop($parent, $op1, $opc, $op2)
{
$this->parent = &$parent;
$this->opc = $opc;
$this->op1 = $op1;
$this->op2 = $op2;
}
function toCode($indent)
{
$op1 = foldToCode($this->op1, $indent);
if (is_a($this->op1, 'Decompiler_Binop') && $this->op1->opc != $this->opc) {
$op1 = "($op1)";
}
$opstr = $this->parent->binops[$this->opc];
if ($op1 == '0' && $this->opc == XC_SUB) {
return $opstr . str($this->op2, $indent);
}
return str($op1) . ' ' . $opstr . ' ' . str($this->op2, $indent);
}
}
// }}}
class Decompiler_Fetch extends Decompiler_Code // {{{
{
var $src;
var $fetchType;
function Decompiler_Fetch($src, $type, $globalsrc)
{
$this->src = $src;
$this->fetchType = $type;
$this->globalsrc = $globalsrc;
}
function toCode($indent)
{
switch ($this->fetchType) {
case ZEND_FETCH_LOCAL:
return '$' . substr($this->src, 1, -1);
case ZEND_FETCH_STATIC:
if (ZEND_ENGINE_2_3) {
// closure local variable?
return str($this->src);
}
die('static fetch cant to string');
case ZEND_FETCH_GLOBAL:
case ZEND_FETCH_GLOBAL_LOCK:
return $this->globalsrc;
default:
var_dump($this->fetchType);
assert(0);
}
}
}
// }}}
class Decompiler_Box // {{{
{
var $obj;
function Decompiler_Box(&$obj)
{
$this->obj = &$obj;
}
function toCode($indent)
{
return $this->obj->toCode($indent);
}
}
// }}}
class Decompiler_Dim extends Decompiler_Value // {{{
{
var $offsets = array();
var $isLast = false;
var $isObject = false;
var $assign = null;
function toCode($indent)
{
if (is_a($this->value, 'Decompiler_ListBox')) {
$exp = str($this->value->obj->src, $indent);
}
else {
$exp = str($this->value, $indent);
}
$last = count($this->offsets) - 1;
foreach ($this->offsets as $i => $dim) {
if ($this->isObject && $i == $last) {
$exp .= '->' . unquoteProperty($dim, $indent);
}
else {
$exp .= '[' . str($dim, $indent) . ']';
}
}
return $exp;
}
}
// }}}
class Decompiler_DimBox extends Decompiler_Box // {{{
{
}
// }}}
class Decompiler_List extends Decompiler_Code // {{{
{
var $src;
var $dims = array();
var $everLocked = false;
function toCode($indent)
{
if (count($this->dims) == 1 && !$this->everLocked) {
$dim = $this->dims[0];
unset($dim->value);
$dim->value = $this->src;
if (!isset($dim->assign)) {
return str($dim, $indent);
}
return str($this->dims[0]->assign, $indent) . ' = ' . str($dim, $indent);
}
/* flatten dims */
$assigns = array();
foreach ($this->dims as $dim) {
$assign = &$assigns;
foreach ($dim->offsets as $offset) {
$assign = &$assign[$offset];
}
$assign = foldToCode($dim->assign, $indent);
}
return str($this->toList($assigns)) . ' = ' . str($this->src, $indent);
}
function toList($assigns)
{
$keys = array_keys($assigns);
if (count($keys) < 2) {
$keys[] = 0;
}
$max = call_user_func_array('max', $keys);
$list = 'list(';
for ($i = 0; $i <= $max; $i ++) {
if ($i) {
$list .= ', ';
}
if (!isset($assigns[$i])) {
continue;
}
if (is_array($assigns[$i])) {
$list .= $this->toList($assigns[$i]);
}
else {
$list .= $assigns[$i];
}
}
return $list . ')';
}
}
// }}}
class Decompiler_ListBox extends Decompiler_Box // {{{
{
}
// }}}
class Decompiler_Array extends Decompiler_Value // {{{
{
// emenets
function Decompiler_Array()
{
$this->value = array();
}
function toCode($indent)
{
$subindent = $indent . INDENT;
$elementsCode = array();
$index = 0;
foreach ($this->value as $element) {
list($key, $value) = $element;
if (!isset($key)) {
$key = $index++;
}
$elementsCode[] = array(str($key, $subindent), str($value, $subindent), $key, $value);
}
$exp = "array(";
$indent = $indent . INDENT;
$assocWidth = 0;
$multiline = 0;
$i = 0;
foreach ($elementsCode as $element) {
list($keyCode, $valueCode) = $element;
if ((string) $i !== $keyCode) {
$assocWidth = 1;
break;
}
++$i;
}
foreach ($elementsCode as $element) {
list($keyCode, $valueCode, $key, $value) = $element;
if ($assocWidth) {
$len = strlen($keyCode);
if ($assocWidth < $len) {
$assocWidth = $len;
}
}
if (is_array($value) || is_a($value, 'Decompiler_Array')) {
$multiline ++;
}
}
$i = 0;
foreach ($elementsCode as $element) {
list($keyCode, $value) = $element;
if ($multiline) {
if ($i) {
$exp .= ",";
}
$exp .= "\n";
$exp .= $indent;
}
else {
if ($i) {
$exp .= ", ";
}
}
if ($assocWidth) {
if ($multiline) {
$exp .= sprintf("%-{$assocWidth}s => ", $keyCode);
}
else {
$exp .= $keyCode . ' => ';
}
}
$exp .= $value;
$i ++;
}
if ($multiline) {
$exp .= "\n$indent)";
}
else {
$exp .= ")";
}
return $exp;
}
}
// }}}
class Decompiler_ConstArray extends Decompiler_Array // {{{
{
function Decompiler_ConstArray($array)
{
$elements = array();
foreach ($array as $key => $value) {
$elements[] = array(value($key), value($value));
}
$this->value = $elements;
}
}
// }}}
class Decompiler_ForeachBox extends Decompiler_Box // {{{
{
var $iskey;
function toCode($indent)
{
return 'foreach (' . '';
}
}
// }}}
class Decompiler
{
var $namespace;
var $namespaceDecided;
function Decompiler()
{
// {{{ opinfo
$this->unaryops = array(
XC_BW_NOT => '~',
XC_BOOL_NOT => '!',
);
$this->binops = array(
XC_ADD => "+",
XC_ASSIGN_ADD => "+=",
XC_SUB => "-",
XC_ASSIGN_SUB => "-=",
XC_MUL => "*",
XC_ASSIGN_MUL => "*=",
XC_DIV => "/",
XC_ASSIGN_DIV => "/=",
XC_MOD => "%",
XC_ASSIGN_MOD => "%=",
XC_SL => "<<",
XC_ASSIGN_SL => "<<=",
XC_SR => ">>",
XC_ASSIGN_SR => ">>=",
XC_CONCAT => ".",
XC_ASSIGN_CONCAT => ".=",
XC_IS_IDENTICAL => "===",
XC_IS_NOT_IDENTICAL => "!==",
XC_IS_EQUAL => "==",
XC_IS_NOT_EQUAL => "!=",
XC_IS_SMALLER => "<",
XC_IS_SMALLER_OR_EQUAL => "<=",
XC_BW_OR => "|",
XC_ASSIGN_BW_OR => "|=",
XC_BW_AND => "&",
XC_ASSIGN_BW_AND => "&=",
XC_BW_XOR => "^",
XC_ASSIGN_BW_XOR => "^=",
XC_BOOL_XOR => "xor",
);
// }}}
$this->includeTypes = array( // {{{
ZEND_EVAL => 'eval',
ZEND_INCLUDE => 'include',
ZEND_INCLUDE_ONCE => 'include_once',
ZEND_REQUIRE => 'require',
ZEND_REQUIRE_ONCE => 'require_once',
);
// }}}
}
function detectNamespace($name) // {{{
{
if ($this->namespaceDecided) {
return;
}
if (strpos($name, '\\') !== false) {
$this->namespace = strtok($name, '\\');
echo 'namespace ', $this->namespace, ";\n\n";
}
$this->namespaceDecided = true;
}
// }}}
function stripNamespace($name) // {{{
{
$len = strlen($this->namespace) + 1;
if (substr($name, 0, $len) == $this->namespace . '\\') {
return substr($name, $len);
}
else {
return $name;
}
}
// }}}
function outputPhp(&$opcodes, $opline, $last, $indent) // {{{
{
$origindent = $indent;
$curticks = 0;
for ($i = $opline; $i <= $last; $i ++) {
$op = $opcodes[$i];
if (isset($op['php'])) {
$toticks = isset($op['ticks']) ? (int) str($op['ticks']) : 0;
if ($curticks != $toticks) {
$oldticks = $curticks;
$curticks = $toticks;
if (!$curticks) {
echo $origindent, "}\n\n";
$indent = $origindent;
}
else {
if ($oldticks) {
echo $origindent, "}\n\n";
}
else if (!$oldticks) {
$indent .= INDENT;
}
echo $origindent, "declare (ticks=$curticks) {\n";
}
}
echo $indent, str($op['php'], $indent), ";\n";
}
}
if ($curticks) {
echo $origindent, "}\n";
}
}
// }}}
function getOpVal($op, &$EX, $tostr = true, $free = false) // {{{
{
switch ($op['op_type']) {
case XC_IS_CONST:
return foldToCode(value($op['constant']), $EX);
case XC_IS_VAR:
case XC_IS_TMP_VAR:
$T = &$EX['Ts'];
$ret = $T[$op['var']];
if ($tostr) {
$ret = foldToCode($ret, $EX);
}
if ($free) {
unset($T[$op['var']]);
}
return $ret;
case XC_IS_CV:
$var = $op['var'];
$var = $EX['op_array']['vars'][$var];
return '$' . $var['name'];
case XC_IS_UNUSED:
return null;
}
}
// }}}
function removeKeyPrefix($array, $prefix) // {{{
{
$prefixLen = strlen($prefix);
$ret = array();
foreach ($array as $key => $value) {
if (substr($key, 0, $prefixLen) == $prefix) {
$key = substr($key, $prefixLen);
}
$ret[$key] = $value;
}
return $ret;
}
// }}}
function &fixOpcode($opcodes, $removeTailing = false, $defaultReturnValue = null) // {{{
{
for ($i = 0, $cnt = count($opcodes); $i < $cnt; $i ++) {
if (function_exists('xcache_get_fixed_opcode')) {
$opcodes[$i]['opcode'] = xcache_get_fixed_opcode($opcodes[$i]['opcode'], $i);
}
if (isset($opcodes[$i]['op1'])) {
$opcodes[$i]['op1'] = $this->removeKeyPrefix($opcodes[$i]['op1'], 'u.');
$opcodes[$i]['op2'] = $this->removeKeyPrefix($opcodes[$i]['op2'], 'u.');
$opcodes[$i]['result'] = $this->removeKeyPrefix($opcodes[$i]['result'], 'u.');
}
else {
$op = array(
'op1' => array(),
'op2' => array(),
'op3' => array(),
);
foreach ($opcodes[$i] as $name => $value) {
if (preg_match('!^(op1|op2|result)\\.(.*)!', $name, $m)) {
list(, $which, $field) = $m;
$op[$which][$field] = $value;
}
else if (preg_match('!^(op1|op2|result)_type$!', $name, $m)) {
list(, $which) = $m;
$op[$which]['op_type'] = $value;
}
else {
$op[$name] = $value;
}
}
$opcodes[$i] = $op;
}
}
if ($removeTailing) {
$last = count($opcodes) - 1;
if ($opcodes[$last]['opcode'] == XC_HANDLE_EXCEPTION) {
unset($opcodes[$last]);
--$last;
}
if ($opcodes[$last]['opcode'] == XC_RETURN) {
$op1 = $opcodes[$last]['op1'];
if ($op1['op_type'] == XC_IS_CONST && array_key_exists('constant', $op1) && $op1['constant'] === $defaultReturnValue) {
unset($opcodes[$last]);
--$last;
}
}
}
return $opcodes;
}
// }}}
function &dop_array($op_array, $indent = '') // {{{
{
$op_array['opcodes'] = $this->fixOpcode($op_array['opcodes'], true, $indent == '' ? 1 : null);
$opcodes = &$op_array['opcodes'];
$EX['indent'] = '';
// {{{ build jmp array
for ($i = 0, $cnt = count($opcodes); $i < $cnt; $i ++) {
$op = &$opcodes[$i];
/*
if ($op['opcode'] == XC_JMPZ) {
$this->dumpop($op, $EX);
var_dump($op);
}
continue;
*/
$op['line'] = $i;
switch ($op['opcode']) {
case XC_GOTO:
case XC_JMP:
$target = $op['op1']['var'];
$op['jmpouts'] = array($target);
$opcodes[$target]['jmpins'][] = $i;
break;
case XC_JMPZNZ:
$jmpz = $op['op2']['opline_num'];
$jmpnz = $op['extended_value'];
$op['jmpouts'] = array($jmpz, $jmpnz);
$opcodes[$jmpz]['jmpins'][] = $i;
$opcodes[$jmpnz]['jmpins'][] = $i;
break;
case XC_JMPZ:
case XC_JMPNZ:
case XC_JMPZ_EX:
case XC_JMPNZ_EX:
case XC_JMP_SET:
// case XC_FE_RESET:
case XC_FE_FETCH:
// case XC_JMP_NO_CTOR:
$target = $op['op2']['opline_num'];
//if (!isset($target)) {
// $this->dumpop($op, $EX);
// var_dump($op); exit;
//}
$op['jmpouts'] = array($target);
$opcodes[$target]['jmpins'][] = $i;
break;
/*
case XC_RETURN:
$op['jmpouts'] = array();
break;
*/
}
}
unset($op);
// }}}
// build semi-basic blocks
$nextbbs = array();
$starti = 0;
for ($i = 1, $cnt = count($opcodes); $i < $cnt; $i ++) {
if (isset($opcodes[$i]['jmpins'])
|| isset($opcodes[$i - 1]['jmpouts'])) {
$nextbbs[$starti] = $i;
$starti = $i;
}
}
$nextbbs[$starti] = $cnt;
$EX = array();
$EX['Ts'] = array();
$EX['indent'] = $indent;
$EX['nextbbs'] = $nextbbs;
$EX['op_array'] = &$op_array;
$EX['opcodes'] = &$opcodes;
// func call
$EX['object'] = null;
$EX['called_scope'] = null;
$EX['fbc'] = null;
$EX['argstack'] = array();
$EX['arg_types_stack'] = array();
$EX['last'] = count($opcodes) - 1;
$EX['silence'] = 0;
for ($next = 0, $last = $EX['last'];
$loop = $this->outputCode($EX, $next, $last, $indent, true);
list($next, $last) = $loop) {
// empty
}
return $EX;
}
// }}}
function outputCode(&$EX, $opline, $last, $indent, $loop = false) // {{{
{
$op = &$EX['opcodes'][$opline];
$next = $EX['nextbbs'][$opline];
$end = $next - 1;
if ($end > $last) {
$end = $last;
}
if (isset($op['jmpins'])) {
echo "\nline", $op['line'], ":\n";
}
else {
// echo ";;;\n";
}
$this->dasmBasicBlock($EX, $opline, $end);
$this->outputPhp($EX['opcodes'], $opline, $end, $indent);
// jmpout op
$op = &$EX['opcodes'][$end];
$op1 = $op['op1'];
$op2 = $op['op2'];
$ext = $op['extended_value'];
$line = $op['line'];
if (isset($EX['opcodes'][$next])) {
if (isset($last) && $next > $last) {
$next = null;
}
}
else {
$next = null;
}
if ($op['opcode'] == XC_FE_FETCH) {
$opline = $next;
$next = $op['op2']['opline_num'];
$end = $next - 1;
ob_start();
$this->outputCode($EX, $opline, $end /* - 1 skip last jmp */, $indent . INDENT);
$body = ob_get_clean();
$as = foldToCode($op['fe_as'], $EX);
if (isset($op['fe_key'])) {
$as = str($op['fe_key'], $EX) . ' => ' . str($as);
}
echo "{$indent}foreach (" . str($op['fe_src'], $EX) . " as $as) {\n";
echo $body;
echo "{$indent}}";
// $this->outputCode($EX, $next, $last, $indent);
// return;
}
/*
if ($op['opcode'] == XC_JMPZ) {
$target = $op2['opline_num'];
if ($line + 1) {
$nextblock = $EX['nextbbs'][$next];
$jmpop = end($nextblock);
if ($jmpop['opcode'] == XC_JMP) {
$ifendline = $op2['opline_num'];
if ($ifendline >= $line) {
$cond = $op['cond'];
echo "{$indent}if ($cond) {\n";
$this->outputCode($EX, $next, $last, INDENT . $indent);
echo "$indent}\n";
$this->outputCode($EX, $target, $last, $indent);
return;
}
}
}
}
*/
if (!isset($next)) {
return;
}
if (!empty($op['jmpouts']) && isset($op['isjmp'])) {
if (isset($op['cond'])) {
echo "{$indent}check (" . str($op["cond"]) . ") {\n";
echo INDENT;
}
echo $indent;
echo xcache_get_opcode($op['opcode']), ' line', $op['jmpouts'][0];
if (isset($op['jmpouts'][1])) {
echo ', line', $op['jmpouts'][1];
}
echo ";";
// echo ' // <- line', $op['line'];
echo "\n";
if (isset($op['cond'])) echo "$indent}\n";
}
// proces JMPZ_EX/JMPNZ_EX for AND,OR
$op = &$EX['opcodes'][$next];
/*
if (isset($op['jmpins'])) {
foreach (array_reverse($op['jmpins']) as $fromline) {
$fromop = $EX['opcodes'][$fromline];
switch ($fromop['opcode']) {
case XC_JMPZ_EX: $opstr = 'and'; break;
case XC_JMPNZ_EX: $opstr = 'or'; break;
case XC_JMPZNZ: var_dump($fromop); exit;
default: continue 2;
}
$var = $fromop['result']['var'];
var_dump($EX['Ts'][$var]);
$EX['Ts'][$var] = '(' . $fromop['and_or'] . " $opstr " . $EX['Ts'][$var] . ')';
}
#$this->outputCode($EX, $next, $last, $indent);
#return;
}
*/
if (isset($op['cond_false'])) {
// $this->dumpop($op, $EX);
// any true comes here, so it's a "or"
$cond = implode(' and ', str($op['cond_false']));
// var_dump($op['cond'] = $cond);
/*
$rvalue = implode(' or ', $op['cond_true']) . ' or ' . $rvalue;
unset($op['cond_true']);
*/
}
if ($loop) {
return array($next, $last);
}
$this->outputCode($EX, $next, $last, $indent);
}
// }}}
function dasmBasicBlock(&$EX, $opline, $last) // {{{
{
$T = &$EX['Ts'];
$opcodes = &$EX['opcodes'];
$lastphpop = null;
for ($i = $opline, $ic = $last + 1; $i < $ic; $i ++) {
// {{{ prepair
$op = &$opcodes[$i];
$opc = $op['opcode'];
if ($opc == XC_NOP) {
continue;
}
$op1 = $op['op1'];
$op2 = $op['op2'];
$res = $op['result'];
$ext = $op['extended_value'];
$opname = xcache_get_opcode($opc);
if ($opname == 'UNDEF' || !isset($opname)) {
echo 'UNDEF OP:';
$this->dumpop($op, $EX);
continue;
}
// $this->dumpop($op, $EX); //var_dump($op);
$resvar = null;
if ((ZEND_ENGINE_2_4 ? ($res['op_type'] & EXT_TYPE_UNUSED) : ($res['EA.type'] & EXT_TYPE_UNUSED)) || $res['op_type'] == XC_IS_UNUSED) {
$istmpres = false;
}
else {
$istmpres = true;
}
// }}}
// echo $opname, "\n";
$call = array(&$this, $opname);
if (is_callable($call)) {
$this->{$opname}($op, $EX);
}
else if (isset($this->binops[$opc])) { // {{{
$op1val = $this->getOpVal($op1, $EX, false);
$op2val = $this->getOpVal($op2, $EX, false);
$rvalue = new Decompiler_Binop($this, $op1val, $opc, $op2val);
$resvar = $rvalue;
// }}}
}
else if (isset($this->unaryops[$opc])) { // {{{
$op1val = $this->getOpVal($op1, $EX);
$myop = $this->unaryops[$opc];
$rvalue = "$myop$op1val";
$resvar = $rvalue;
// }}}
}
else {
switch ($opc) {
case XC_NEW: // {{{
array_push($EX['arg_types_stack'], array($EX['fbc'], $EX['object'], $EX['called_scope']));
$EX['object'] = (int) $res['var'];
$EX['called_scope'] = null;
$EX['fbc'] = 'new ' . unquoteName($this->getOpVal($op1, $EX), $EX);
if (!ZEND_ENGINE_2) {
$resvar = '$new object$';
}
break;
// }}}
case XC_THROW: // {{{
$resvar = 'throw ' . str($this->getOpVal($op1, $EX));
break;
// }}}
case XC_CLONE: // {{{
$resvar = 'clone ' . str($this->getOpVal($op1, $EX));
break;
// }}}
case XC_CATCH: // {{{
$resvar = 'catch (' . str($this->getOpVal($op1, $EX)) . ' ' . str($this->getOpVal($op2, $EX)) . ')';
break;
// }}}
case XC_INSTANCEOF: // {{{
$resvar = str($this->getOpVal($op1, $EX)) . ' instanceof ' . str($this->getOpVal($op2, $EX));
break;
// }}}
case XC_FETCH_CLASS: // {{{
if ($op2['op_type'] == XC_IS_UNUSED) {
switch (($ext & (defined('ZEND_FETCH_CLASS_MASK') ? ZEND_FETCH_CLASS_MASK : 0xFF))) {
case ZEND_FETCH_CLASS_SELF:
$class = 'self';
break;
case ZEND_FETCH_CLASS_PARENT:
$class = 'parent';
break;
case ZEND_FETCH_CLASS_STATIC:
$class = 'static';
break;
}
$istmpres = true;
}
else {
$class = $this->getOpVal($op2, $EX);
if (isset($op2['constant'])) {
$class = $this->stripNamespace(unquoteName($class));
}
}
$resvar = $class;
break;
// }}}
case XC_FETCH_CONSTANT: // {{{
if ($op1['op_type'] == XC_IS_UNUSED) {
$resvar = $this->stripNamespace($op2['constant']);
break;
}
if ($op1['op_type'] == XC_IS_CONST) {
$resvar = $this->stripNamespace($op1['constant']);
}
else {
$resvar = $this->getOpVal($op1, $EX);
}
$resvar = str($resvar) . '::' . unquoteName($this->getOpVal($op2, $EX));
break;
// }}}
// {{{ case XC_FETCH_*
case XC_FETCH_R:
case XC_FETCH_W:
case XC_FETCH_RW:
case XC_FETCH_FUNC_ARG:
case XC_FETCH_UNSET:
case XC_FETCH_IS:
case XC_UNSET_VAR:
$rvalue = $this->getOpVal($op1, $EX);
if (defined('ZEND_FETCH_TYPE_MASK')) {
$fetchtype = ($ext & ZEND_FETCH_TYPE_MASK);
}
else {
$fetchtype = $op2[!ZEND_ENGINE_2 ? 'fetch_type' : 'EA.type'];
}
switch ($fetchtype) {
case ZEND_FETCH_STATIC_MEMBER:
$class = $this->getOpVal($op2, $EX);
$rvalue = str($class) . '::$' . unquoteName($rvalue, $EX);
break;
default:
$name = unquoteName($rvalue, $EX);
$globalname = xcache_is_autoglobal($name) ? "\$$name" : "\$GLOBALS[" . str($rvalue) . "]";
$rvalue = new Decompiler_Fetch($rvalue, $fetchtype, $globalname);
break;
}
if ($opc == XC_UNSET_VAR) {
$op['php'] = "unset(" . str($rvalue, $EX) . ")";
$lastphpop = &$op;
}
else if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = $rvalue;
}
break;
// }}}
// {{{ case XC_FETCH_DIM_*
case XC_FETCH_DIM_TMP_VAR:
case XC_FETCH_DIM_R:
case XC_FETCH_DIM_W:
case XC_FETCH_DIM_RW:
case XC_FETCH_DIM_FUNC_ARG:
case XC_FETCH_DIM_UNSET:
case XC_FETCH_DIM_IS:
case XC_ASSIGN_DIM:
case XC_UNSET_DIM_OBJ: // PHP 4 only
case XC_UNSET_DIM:
case XC_UNSET_OBJ:
$src = $this->getOpVal($op1, $EX, false);
if (is_a($src, "Decompiler_ForeachBox")) {
$src->iskey = $this->getOpVal($op2, $EX);
$resvar = $src;
break;
}
if (is_a($src, "Decompiler_DimBox")) {
$dimbox = $src;
}
else {
if (!is_a($src, "Decompiler_ListBox")) {
$op1val = $this->getOpVal($op1, $EX, false);
$list = new Decompiler_List(isset($op1val) ? $op1val : '$this');
$src = new Decompiler_ListBox($list);
if (!isset($op1['var'])) {
$this->dumpop($op, $EX);
var_dump($op);
die('missing var');
}
$T[$op1['var']] = $src;
unset($list);
}
$dim = new Decompiler_Dim($src);
$src->obj->dims[] = &$dim;
$dimbox = new Decompiler_DimBox($dim);
}
$dim = &$dimbox->obj;
$dim->offsets[] = $this->getOpVal($op2, $EX);
if ($ext == ZEND_FETCH_ADD_LOCK) {
$src->obj->everLocked = true;
}
else if ($ext == ZEND_FETCH_STANDARD) {
$dim->isLast = true;
}
if ($opc == XC_UNSET_OBJ) {
$dim->isObject = true;
}
unset($dim);
$rvalue = $dimbox;
unset($dimbox);
if ($opc == XC_ASSIGN_DIM) {
$lvalue = $rvalue;
++ $i;
$rvalue = $this->getOpVal($opcodes[$i]['op1'], $EX);
$resvar = str($lvalue, $EX) . ' = ' . str($rvalue);
}
else if ($opc == XC_UNSET_DIM || $opc == XC_UNSET_OBJ) {
$op['php'] = "unset(" . str($rvalue, $EX) . ")";
$lastphpop = &$op;
}
else if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = $rvalue;
}
break;
// }}}
case XC_ASSIGN: // {{{
$lvalue = $this->getOpVal($op1, $EX);
$rvalue = $this->getOpVal($op2, $EX, false);
if (is_a($rvalue, 'Decompiler_ForeachBox')) {
$type = $rvalue->iskey ? 'fe_key' : 'fe_as';
$rvalue->obj[$type] = $lvalue;
unset($T[$op2['var']]);
break;
}
if (is_a($rvalue, "Decompiler_DimBox")) {
$dim = &$rvalue->obj;
$dim->assign = $lvalue;
if ($dim->isLast) {
$resvar = foldToCode($dim->value, $EX);
}
unset($dim);
break;
}
$resvar = "$lvalue = " . str($rvalue, $EX);
break;
// }}}
case XC_ASSIGN_REF: // {{{
$lvalue = $this->getOpVal($op1, $EX);
$rvalue = $this->getOpVal($op2, $EX, false);
if (is_a($rvalue, 'Decompiler_Fetch')) {
$src = str($rvalue->src, $EX);
if ('$' . unquoteName($src) == $lvalue) {
switch ($rvalue->fetchType) {
case ZEND_FETCH_GLOBAL:
case ZEND_FETCH_GLOBAL_LOCK:
$resvar = 'global ' . $lvalue;
break 2;
case ZEND_FETCH_STATIC:
$statics = &$EX['op_array']['static_variables'];
$resvar = 'static ' . $lvalue;
$name = unquoteName($src);
if (isset($statics[$name])) {
$var = $statics[$name];
var_dump(str(value($statics)));
$resvar .= ' = ';
$resvar .= str(value($var), $EX);
}
unset($statics);
break 2;
default:
}
}
}
// TODO: PHP_6 global
$rvalue = str($rvalue, $EX);
$resvar = "$lvalue = &$rvalue";
break;
// }}}
// {{{ case XC_FETCH_OBJ_*
case XC_FETCH_OBJ_R:
case XC_FETCH_OBJ_W:
case XC_FETCH_OBJ_RW:
case XC_FETCH_OBJ_FUNC_ARG:
case XC_FETCH_OBJ_UNSET:
case XC_FETCH_OBJ_IS:
case XC_ASSIGN_OBJ:
$obj = $this->getOpVal($op1, $EX);
if (!isset($obj)) {
$obj = '$this';
}
$rvalue = str($obj) . "->" . unquoteProperty($this->getOpVal($op2, $EX), $EX);
if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = $rvalue;
}
if ($opc == XC_ASSIGN_OBJ) {
++ $i;
$lvalue = $rvalue;
$rvalue = $this->getOpVal($opcodes[$i]['op1'], $EX);
$resvar = "$lvalue = " . str($rvalue);
}
break;
// }}}
case XC_ISSET_ISEMPTY_DIM_OBJ:
case XC_ISSET_ISEMPTY_PROP_OBJ:
case XC_ISSET_ISEMPTY:
case XC_ISSET_ISEMPTY_VAR: // {{{
if ($opc == XC_ISSET_ISEMPTY_VAR) {
$rvalue = $this->getOpVal($op1, $EX);;
if (preg_match($this->rQuotedName, $rvalue)) {
$rvalue = '$' . substr($rvalue, 1, -1);
}
else {
$rvalue = '${' . $rvalue . '}';
}
if ($op2['EA.type'] == ZEND_FETCH_STATIC_MEMBER) {
$class = $this->getOpVal($op2, $EX);
$rvalue = $class . '::' . $rvalue;
}
}
else if ($opc == XC_ISSET_ISEMPTY) {
$rvalue = $this->getOpVal($op1, $EX);
}
else {
$container = $this->getOpVal($op1, $EX);
$dim = $this->getOpVal($op2, $EX);
if ($opc == XC_ISSET_ISEMPTY_PROP_OBJ) {
if (preg_match($this->rQuotedName, $dim)) {
$rvalue = $container . "->" . substr($dim, 1, -1);
}
else {
$rvalue = $container . "->{" . $dim . "}";
}
}
else {
$rvalue = $container . "[$dim]";
}
}
switch ((!ZEND_ENGINE_2 ? $op['op2']['var'] /* constant */ : $ext) & (ZEND_ISSET|ZEND_ISEMPTY)) {
case ZEND_ISSET:
$rvalue = "isset($rvalue)";
break;
case ZEND_ISEMPTY:
$rvalue = "empty($rvalue)";
break;
}
$resvar = $rvalue;
break;
// }}}
case XC_SEND_VAR_NO_REF:
case XC_SEND_VAL:
case XC_SEND_REF:
case XC_SEND_VAR: // {{{
$ref = ($opc == XC_SEND_REF ? '&' : '');
$EX['argstack'][] = $ref . str($this->getOpVal($op1, $EX));
break;
// }}}
case XC_INIT_STATIC_METHOD_CALL:
case XC_INIT_METHOD_CALL: // {{{
array_push($EX['arg_types_stack'], array($EX['fbc'], $EX['object'], $EX['called_scope']));
if ($opc == XC_INIT_STATIC_METHOD_CALL || $opc == XC_INIT_METHOD_CALL || $op1['op_type'] != XC_IS_UNUSED) {
$obj = $this->getOpVal($op1, $EX);
if (!isset($obj)) {
$obj = '$this';
}
if ($opc == XC_INIT_STATIC_METHOD_CALL || /* PHP4 */ isset($op1['constant'])) {
$EX['object'] = null;
$EX['called_scope'] = $this->stripNamespace(unquoteName($obj, $EX));
}
else {
$EX['object'] = $obj;
$EX['called_scope'] = null;
}
if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = '$obj call$';
}
}
else {
$EX['object'] = null;
$EX['called_scope'] = null;
}
$EX['fbc'] = $this->getOpVal($op2, $EX, false);
if (($opc == XC_INIT_STATIC_METHOD_CALL || $opc == XC_INIT_METHOD_CALL) && !isset($EX['fbc'])) {
$EX['fbc'] = '__construct';
}
break;
// }}}
case XC_INIT_NS_FCALL_BY_NAME:
case XC_INIT_FCALL_BY_NAME: // {{{
if (!ZEND_ENGINE_2 && ($ext & ZEND_CTOR_CALL)) {
break;
}
$EX['object'] = null;
$EX['called_scope'] = null;
$EX['fbc'] = $this->getOpVal($op2, $EX);
break;
// }}}
case XC_INIT_FCALL_BY_FUNC: // {{{ deprecated even in PHP 4?
$EX['object'] = null;
$EX['called_scope'] = null;
$which = $op1['var'];
$EX['fbc'] = $EX['op_array']['funcs'][$which]['name'];
break;
// }}}
case XC_DO_FCALL_BY_FUNC:
$which = $op1['var'];
$fname = $EX['op_array']['funcs'][$which]['name'];
$args = $this->popargs($EX, $ext);
$resvar = $fname . "($args)";
break;
case XC_DO_FCALL:
$fname = unquoteName($this->getOpVal($op1, $EX, false), $EX);
$args = $this->popargs($EX, $ext);
$resvar = $fname . "($args)";
break;
case XC_DO_FCALL_BY_NAME: // {{{
$object = null;
$fname = unquoteName($EX['fbc'], $EX);
if (!is_int($EX['object'])) {
$object = $EX['object'];
}
$args = $this->popargs($EX, $ext);
$prefix = (isset($object) ? $object . '->' : '' )
. (isset($EX['called_scope']) ? $EX['called_scope'] . '::' : '' );
$resvar = $prefix
. (!$prefix ? $this->stripNamespace($fname) : $fname)
. "($args)";
unset($args);
if (is_int($EX['object'])) {
$T[$EX['object']] = $resvar;
$resvar = null;
}
list($EX['fbc'], $EX['object'], $EX['called_scope']) = array_pop($EX['arg_types_stack']);
break;
// }}}
case XC_VERIFY_ABSTRACT_CLASS: // {{{
//unset($T[$op1['var']]);
break;
// }}}
case XC_DECLARE_CLASS:
case XC_DECLARE_INHERITED_CLASS:
case XC_DECLARE_INHERITED_CLASS_DELAYED: // {{{
$key = $op1['constant'];
if (!isset($this->dc['class_table'][$key])) {
echo 'class not found: ', $key, 'existing classes are:', "\n";
var_dump(array_keys($this->dc['class_table']));
exit;
}
$class = &$this->dc['class_table'][$key];
if (!isset($class['name'])) {
$class['name'] = unquoteName($this->getOpVal($op2, $EX), $EX);
}
if ($opc == XC_DECLARE_INHERITED_CLASS || $opc == XC_DECLARE_INHERITED_CLASS_DELAYED) {
$ext /= XC_SIZEOF_TEMP_VARIABLE;
$class['parent'] = $T[$ext];
unset($T[$ext]);
}
else {
$class['parent'] = null;
}
for (;;) {
if ($i + 1 < $ic
&& $opcodes[$i + 1]['opcode'] == XC_ADD_INTERFACE
&& $opcodes[$i + 1]['op1']['var'] == $res['var']) {
// continue
}
else if ($i + 2 < $ic
&& $opcodes[$i + 2]['opcode'] == XC_ADD_INTERFACE
&& $opcodes[$i + 2]['op1']['var'] == $res['var']
&& $opcodes[$i + 1]['opcode'] == XC_FETCH_CLASS) {
// continue
}
else {
break;
}
$fetchop = &$opcodes[$i + 1];
$interface = $this->stripNamespace(unquoteName($this->getOpVal($fetchop['op2'], $EX), $EX));
$addop = &$opcodes[$i + 2];
$class['interfaces'][$addop['extended_value']] = $interface;
unset($fetchop, $addop);
$i += 2;
}
$this->dclass($class);
echo "\n";
unset($class);
break;
// }}}
case XC_INIT_STRING: // {{{
$resvar = "''";
break;
// }}}
case XC_ADD_CHAR:
case XC_ADD_STRING:
case XC_ADD_VAR: // {{{
$op1val = $this->getOpVal($op1, $EX);
$op2val = $this->getOpVal($op2, $EX);
switch ($opc) {
case XC_ADD_CHAR:
$op2val = value(chr(str($op2val)));
break;
case XC_ADD_STRING:
break;
case XC_ADD_VAR:
break;
}
if (str($op1val) == "''") {
$rvalue = $op2val;
}
else if (str($op2val) == "''") {
$rvalue = $op1val;
}
else {
$rvalue = str($op1val) . ' . ' . str($op2val);
}
$resvar = $rvalue;
// }}}
break;
case XC_PRINT: // {{{
$op1val = $this->getOpVal($op1, $EX);
$resvar = "print($op1val)";
break;
// }}}
case XC_ECHO: // {{{
$op1val = $this->getOpVal($op1, $EX);
$resvar = "echo " . str($op1val);
break;
// }}}
case XC_EXIT: // {{{
$op1val = $this->getOpVal($op1, $EX);
$resvar = "exit($op1val)";
break;
// }}}
case XC_INIT_ARRAY:
case XC_ADD_ARRAY_ELEMENT: // {{{
$rvalue = $this->getOpVal($op1, $EX, false, true);
if ($opc == XC_ADD_ARRAY_ELEMENT) {
$assoc = $this->getOpVal($op2, $EX);
if (isset($assoc)) {
$T[$res['var']]->value[] = array($assoc, $rvalue);
}
else {
$T[$res['var']]->value[] = array(null, $rvalue);
}
}
else {
if ($opc == XC_INIT_ARRAY) {
$resvar = new Decompiler_Array();
if (!isset($rvalue)) {
continue;
}
}
$assoc = $this->getOpVal($op2, $EX);
if (isset($assoc)) {
$resvar->value[] = array($assoc, $rvalue);
}
else {
$resvar->value[] = array(null, $rvalue);
}
}
break;
// }}}
case XC_QM_ASSIGN: // {{{
$resvar = $this->getOpVal($op1, $EX);
break;
// }}}
case XC_BOOL: // {{{
$resvar = /*'(bool) ' .*/ $this->getOpVal($op1, $EX);
break;
// }}}
case XC_RETURN: // {{{
$resvar = "return " . str($this->getOpVal($op1, $EX));
break;
// }}}
case XC_INCLUDE_OR_EVAL: // {{{
$type = $op2['var']; // hack
$keyword = $this->includeTypes[$type];
$resvar = "$keyword " . str($this->getOpVal($op1, $EX));
break;
// }}}
case XC_FE_RESET: // {{{
$resvar = $this->getOpVal($op1, $EX);
break;
// }}}
case XC_FE_FETCH: // {{{
$op['fe_src'] = $this->getOpVal($op1, $EX);
$fe = new Decompiler_ForeachBox($op);
$fe->iskey = false;
$T[$res['var']] = $fe;
++ $i;
if (($ext & ZEND_FE_FETCH_WITH_KEY)) {
$fe = new Decompiler_ForeachBox($op);
$fe->iskey = true;
$res = $opcodes[$i]['result'];
$T[$res['var']] = $fe;
}
break;
// }}}
case XC_SWITCH_FREE: // {{{
// unset($T[$op1['var']]);
break;
// }}}
case XC_FREE: // {{{
$free = $T[$op1['var']];
if (!is_a($free, 'Decompiler_Array') && !is_a($free, 'Decompiler_Box')) {
$op['php'] = is_object($free) ? $free : $this->unquote($free, '(', ')');
$lastphpop = &$op;
}
unset($T[$op1['var']], $free);
break;
// }}}
case XC_JMP_NO_CTOR:
break;
case XC_JMP_SET: // ?:
case XC_JMPNZ: // while
case XC_JMPZNZ: // for
case XC_JMPZ_EX: // and
case XC_JMPNZ_EX: // or
case XC_JMPZ: // {{{
if ($opc == XC_JMP_NO_CTOR && $EX['object']) {
$rvalue = $EX['object'];
}
else {
$rvalue = $this->getOpVal($op1, $EX);
}
if (isset($op['cond_true'])) {
// any true comes here, so it's a "or"
$rvalue = implode(' or ', $op['cond_true']) . ' or ' . $rvalue;
unset($op['cond_true']);
}
if (isset($op['cond_false'])) {
echo "TODO(cond_false):\n";
var_dump($op);// exit;
}
if ($opc == XC_JMPZ_EX || $opc == XC_JMPNZ_EX || $opc == XC_JMPZ) {
$targetop = &$EX['opcodes'][$op2['opline_num']];
if ($opc == XC_JMPNZ_EX) {
$targetop['cond_true'][] = foldToCode($rvalue, $EX);
}
else {
$targetop['cond_false'][] = foldToCode($rvalue, $EX);
}
unset($targetop);
}
else {
$op['cond'] = $rvalue;
$op['isjmp'] = true;
}
break;
// }}}
case XC_GOTO:
case XC_JMP: // {{{
$op['cond'] = null;
$op['isjmp'] = true;
break;
// }}}
case XC_CASE:
$switchValue = $this->getOpVal($op1, $EX);
$caseValue = $this->getOpVal($op2, $EX);
$resvar = str($switchValue) . ' == ' . str($caseValue);
break;
case XC_BRK:
break;
case XC_RECV_INIT:
case XC_RECV:
$offset = $this->getOpVal($op1, $EX);
$lvalue = $this->getOpVal($op['result'], $EX);
if ($opc == XC_RECV_INIT) {
$default = value($op['op2']['constant']);
}
else {
$default = null;
}
$EX['recvs'][str($offset)] = array($lvalue, $default);
break;
case XC_POST_DEC:
case XC_POST_INC:
case XC_POST_DEC_OBJ:
case XC_POST_INC_OBJ:
case XC_PRE_DEC:
case XC_PRE_INC:
case XC_PRE_DEC_OBJ:
case XC_PRE_INC_OBJ: // {{{
$flags = array_flip(explode('_', $opname));
if (isset($flags['OBJ'])) {
$resvar = $this->getOpVal($op1, $EX) . '->' . unquoteProperty($this->getOpVal($op2, $EX), $EX);
}
else {
$resvar = $this->getOpVal($op1, $EX);
}
$opstr = isset($flags['DEC']) ? '--' : '++';
if (isset($flags['POST'])) {
$resvar .= $opstr;
}
else {
$resvar = "$opstr$resvar";
}
break;
// }}}
case XC_BEGIN_SILENCE: // {{{
$EX['silence'] ++;
break;
// }}}
case XC_END_SILENCE: // {{{
$EX['silence'] --;
$lastresvar = '@' . str($lastresvar, $EX);
break;
// }}}
case XC_CONT: // {{{
break;
// }}}
case XC_CAST: // {{{
$type = $ext;
static $type2cast = array(
IS_LONG => '(int)',
IS_DOUBLE => '(double)',
IS_STRING => '(string)',
IS_ARRAY => '(array)',
IS_OBJECT => '(object)',
IS_BOOL => '(bool)',
IS_NULL => '(unset)',
);
assert(isset($type2cast[$type]));
$cast = $type2cast[$type];
$resvar = $cast . ' ' . $this->getOpVal($op1, $EX);
break;
// }}}
case XC_EXT_STMT:
case XC_EXT_FCALL_BEGIN:
case XC_EXT_FCALL_END:
case XC_EXT_NOP:
break;
case XC_DECLARE_FUNCTION:
$this->dfunction($this->dc['function_table'][$op1['constant']], $EX['indent']);
break;
case XC_DECLARE_LAMBDA_FUNCTION: // {{{
ob_start();
$this->dfunction($this->dc['function_table'][$op1['constant']], $EX['indent']);
$resvar = ob_get_clean();
$istmpres = true;
break;
// }}}
case XC_DECLARE_CONST:
$name = $this->stripNamespace(unquoteName($this->getOpVal($op1, $EX), $EX));
$value = str($this->getOpVal($op2, $EX));
$resvar = 'const ' . $name . ' = ' . $value;
break;
case XC_DECLARE_FUNCTION_OR_CLASS:
/* always removed by compiler */
break;
case XC_TICKS:
$lastphpop['ticks'] = $this->getOpVal($op1, $EX);
// $EX['tickschanged'] = true;
break;
case XC_RAISE_ABSTRACT_ERROR:
// abstract function body is empty, don't need this code
break;
case XC_USER_OPCODE:
echo '// ZEND_USER_OPCODE, impossible to decompile';
break;
case XC_OP_DATA:
break;
default: // {{{
echo "\x1B[31m * TODO ", $opname, "\x1B[0m\n";
// }}}
}
}
if (isset($resvar)) {
if ($istmpres) {
$T[$res['var']] = $resvar;
$lastresvar = &$T[$res['var']];
}
else {
$op['php'] = $resvar;
$lastphpop = &$op;
$lastresvar = &$op['php'];
}
}
}
return $T;
}
// }}}
function unquote($str, $st, $ed) // {{{
{
$l1 = strlen($st);
$l2 = strlen($ed);
if (substr($str, 0, $l1) === $st && substr($str, -$l2) === $ed) {
$str = substr($str, $l1, -$l2);
}
return $str;
}
// }}}
function popargs(&$EX, $n) // {{{
{
$args = array();
for ($i = 0; $i < $n; $i ++) {
$a = array_pop($EX['argstack']);
if (is_array($a)) {
array_unshift($args, foldToCode($a, $EX));
}
else {
array_unshift($args, $a);
}
}
return implode(', ', $args);
}
// }}}
function dumpop($op, &$EX) // {{{
{
$op1 = $op['op1'];
$op2 = $op['op2'];
$d = array('opname' => xcache_get_opcode($op['opcode']), 'opcode' => $op['opcode']);
foreach (array('op1' => 'op1', 'op2' => 'op2', 'result' => 'res') as $k => $kk) {
switch ($op[$k]['op_type']) {
case XC_IS_UNUSED:
$d[$kk] = '*UNUSED* ' . $op[$k]['opline_num'];
break;
case XC_IS_VAR:
$d[$kk] = '$' . $op[$k]['var'];
if ($kk != 'res') {
$d[$kk] .= ':' . str($this->getOpVal($op[$k], $EX));
}
break;
case XC_IS_TMP_VAR:
$d[$kk] = '#' . $op[$k]['var'];
if ($kk != 'res') {
$d[$kk] .= ':' . str($this->getOpVal($op[$k], $EX));
}
break;
case XC_IS_CV:
$d[$kk] = $this->getOpVal($op[$k], $EX);
break;
default:
if ($kk == 'res') {
var_dump($op);
exit;
assert(0);
}
else {
$d[$kk] = $this->getOpVal($op[$k], $EX);
}
}
}
$d['ext'] = $op['extended_value'];
var_dump($d);
}
// }}}
function dargs(&$EX, $indent) // {{{
{
$op_array = &$EX['op_array'];
if (isset($op_array['num_args'])) {
$c = $op_array['num_args'];
}
else if ($op_array['arg_types']) {
$c = count($op_array['arg_types']);
}
else {
// php4
$c = count($EX['recvs']);
}
$refrest = false;
for ($i = 0; $i < $c; $i ++) {
if ($i) {
echo ', ';
}
$arg = $EX['recvs'][$i + 1];
if (isset($op_array['arg_info'])) {
$ai = $op_array['arg_info'][$i];
if (!empty($ai['class_name'])) {
echo $this->stripNamespace($ai['class_name']), ' ';
if (!ZEND_ENGINE_2_2 && $ai['allow_null']) {
echo 'or NULL ';
}
}
else if (!empty($ai['array_type_hint'])) {
echo 'array ';
if (!ZEND_ENGINE_2_2 && $ai['allow_null']) {
echo 'or NULL ';
}
}
if ($ai['pass_by_reference']) {
echo '&';
}
printf("\$%s", $ai['name']);
}
else {
if ($refrest) {
echo '&';
}
else if (isset($op_array['arg_types'][$i])) {
switch ($op_array['arg_types'][$i]) {
case BYREF_FORCE_REST:
$refrest = true;
/* fall */
case BYREF_FORCE:
echo '&';
break;
case BYREF_NONE:
case BYREF_ALLOW:
break;
default:
assert(0);
}
}
echo str($arg[0], $indent);
}
if (isset($arg[1])) {
echo ' = ', str($arg[1], $indent);
}
}
}
// }}}
function dfunction($func, $indent = '', $nobody = false) // {{{
{
$this->detectNamespace($func['op_array']['function_name']);
if ($nobody) {
$EX = array();
$EX['op_array'] = &$func['op_array'];
$EX['recvs'] = array();
}
else {
ob_start();
$newindent = INDENT . $indent;
$EX = &$this->dop_array($func['op_array'], $newindent);
$body = ob_get_clean();
if (!isset($EX['recvs'])) {
$EX['recvs'] = array();
}
}
$functionName = $this->stripNamespace($func['op_array']['function_name']);
if ($functionName == '{closure}') {
$functionName = '';
}
echo 'function ', $functionName, '(';
$this->dargs($EX, $indent);
echo ")";
if ($nobody) {
echo ";\n";
}
else {
if ($functionName !== '') {
echo "\n";
echo $indent, "{\n";
}
else {
echo " {\n";
}
echo $body;
echo "$indent}";
if ($functionName !== '') {
echo "\n";
}
}
}
// }}}
function dclass($class, $indent = '') // {{{
{
$this->detectNamespace($class['name']);
// {{{ class decl
if (!empty($class['doc_comment'])) {
echo $indent;
echo $class['doc_comment'];
echo "\n";
}
$isinterface = false;
if (!empty($class['ce_flags'])) {
if ($class['ce_flags'] & ZEND_ACC_INTERFACE) {
$isinterface = true;
}
else {
if ($class['ce_flags'] & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) {
echo "abstract ";
}
if ($class['ce_flags'] & ZEND_ACC_FINAL_CLASS) {
echo "final ";
}
}
}
echo $isinterface ? 'interface ' : 'class ', $this->stripNamespace($class['name']);
if ($class['parent']) {
echo ' extends ', $class['parent'];
}
/* TODO */
if (!empty($class['interfaces'])) {
echo ' implements ';
echo implode(', ', $class['interfaces']);
}
echo "\n";
echo $indent, "{";
// }}}
$newindent = INDENT . $indent;
// {{{ const, static
foreach (array('constants_table' => 'const '
, 'static_members' => 'static $') as $type => $prefix) {
if (!empty($class[$type])) {
echo "\n";
// TODO: skip shadow?
foreach ($class[$type] as $name => $v) {
echo $newindent;
echo $prefix, $name, ' = ';
echo str(value($v), $newindent);
echo ";\n";
}
}
}
// }}}
// {{{ properties
$member_variables = isset($class['properties_info']) ? $class['properties_info'] : ($class['default_static_members'] + $class['default_properties']);
if ($member_variables) {
echo "\n";
$infos = !empty($class['properties_info']) ? $class['properties_info'] : null;
foreach ($member_variables as $name => $dummy) {
$info = (isset($infos) && isset($infos[$name])) ? $infos[$name] : null;
if (isset($info)) {
if (!empty($info['doc_comment'])) {
echo $newindent;
echo $info['doc_comment'];
echo "\n";
}
}
echo $newindent;
$static = false;
if (isset($info)) {
if ($info['flags'] & ZEND_ACC_STATIC) {
$static = true;
}
}
else if (isset($class['default_static_members'][$name])) {
$static = true;
}
if ($static) {
echo "static ";
}
$mangled = false;
if (!ZEND_ENGINE_2) {
echo 'var ';
}
else if (!isset($info)) {
echo 'public ';
}
else {
if ($info['flags'] & ZEND_ACC_SHADOW) {
continue;
}
switch ($info['flags'] & ZEND_ACC_PPP_MASK) {
case ZEND_ACC_PUBLIC:
echo "public ";
break;
case ZEND_ACC_PRIVATE:
echo "private ";
$mangled = true;
break;
case ZEND_ACC_PROTECTED:
echo "protected ";
$mangled = true;
break;
}
}
echo '$', $name;
if (isset($info['offset'])) {
$value = $class[$static ? 'default_static_members_table' : 'default_properties_table'][$info['offset']];
}
else {
$key = isset($info) ? $info['name'] . ($mangled ? "\000" : "") : $name;
$value = $class[$static ? 'default_static_members' : 'default_properties'][$key];
}
if (isset($value)) {
echo ' = ';
echo str(value($value), $newindent);
}
echo ";\n";
}
}
// }}}
// {{{ function_table
if (isset($class['function_table'])) {
foreach ($class['function_table'] as $func) {
if (!isset($func['scope']) || $func['scope'] == $class['name']) {
// TODO: skip shadow here
echo "\n";
$opa = $func['op_array'];
if (!empty($opa['doc_comment'])) {
echo $newindent;
echo $opa['doc_comment'];
echo "\n";
}
echo $newindent;
$isAbstractMethod = false;
if (isset($opa['fn_flags'])) {
if (($opa['fn_flags'] & ZEND_ACC_ABSTRACT) && !$isinterface) {
echo "abstract ";
$isAbstractMethod = true;
}
if ($opa['fn_flags'] & ZEND_ACC_FINAL) {
echo "final ";
}
if ($opa['fn_flags'] & ZEND_ACC_STATIC) {
echo "static ";
}
switch ($opa['fn_flags'] & ZEND_ACC_PPP_MASK) {
case ZEND_ACC_PUBLIC:
echo "public ";
break;
case ZEND_ACC_PRIVATE:
echo "private ";
break;
case ZEND_ACC_PROTECTED:
echo "protected ";
break;
default:
echo "<visibility error> ";
break;
}
}
$this->dfunction($func, $newindent, $isinterface || $isAbstractMethod);
if ($opa['function_name'] == 'Decompiler') {
//exit;
}
}
}
}
// }}}
echo $indent, "}\n";
}
// }}}
function decompileString($string) // {{{
{
$this->dc = xcache_dasm_string($string);
if ($this->dc === false) {
echo "error compling string\n";
return false;
}
}
// }}}
function decompileFile($file) // {{{
{
$this->dc = xcache_dasm_file($file);
if ($this->dc === false) {
echo "error compling $file\n";
return false;
}
}
// }}}
function output() // {{{
{
echo "<?". "php\n\n";
foreach ($this->dc['class_table'] as $key => $class) {
if ($key{0} != "\0") {
$this->dclass($class);
echo "\n";
}
}
foreach ($this->dc['function_table'] as $key => $func) {
if ($key{0} != "\0") {
$this->dfunction($func);
echo "\n";
}
}
$this->dop_array($this->dc['op_array']);
echo "\n?" . ">\n";
return true;
}
// }}}
}
// {{{ defines
define('ZEND_ENGINE_2_4', PHP_VERSION >= "5.3.99");
define('ZEND_ENGINE_2_3', ZEND_ENGINE_2_4 || PHP_VERSION >= "5.3.");
define('ZEND_ENGINE_2_2', ZEND_ENGINE_2_3 || PHP_VERSION >= "5.2.");
define('ZEND_ENGINE_2_1', ZEND_ENGINE_2_2 || PHP_VERSION >= "5.1.");
define('ZEND_ENGINE_2', ZEND_ENGINE_2_1 || PHP_VERSION >= "5.0.");
define('ZEND_ACC_STATIC', 0x01);
define('ZEND_ACC_ABSTRACT', 0x02);
define('ZEND_ACC_FINAL', 0x04);
define('ZEND_ACC_IMPLEMENTED_ABSTRACT', 0x08);
define('ZEND_ACC_IMPLICIT_ABSTRACT_CLASS', 0x10);
define('ZEND_ACC_EXPLICIT_ABSTRACT_CLASS', 0x20);
define('ZEND_ACC_FINAL_CLASS', 0x40);
define('ZEND_ACC_INTERFACE', 0x80);
if (ZEND_ENGINE_2_4) {
define('ZEND_ACC_TRAIT', 0x120);
}
define('ZEND_ACC_PUBLIC', 0x100);
define('ZEND_ACC_PROTECTED', 0x200);
define('ZEND_ACC_PRIVATE', 0x400);
define('ZEND_ACC_PPP_MASK', (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE));
define('ZEND_ACC_CHANGED', 0x800);
define('ZEND_ACC_IMPLICIT_PUBLIC', 0x1000);
define('ZEND_ACC_CTOR', 0x2000);
define('ZEND_ACC_DTOR', 0x4000);
define('ZEND_ACC_CLONE', 0x8000);
define('ZEND_ACC_ALLOW_STATIC', 0x10000);
define('ZEND_ACC_SHADOW', 0x2000);
if (ZEND_ENGINE_2_4) {
define('ZEND_FETCH_GLOBAL', 0x00000000);
define('ZEND_FETCH_LOCAL', 0x10000000);
define('ZEND_FETCH_STATIC', 0x20000000);
define('ZEND_FETCH_STATIC_MEMBER', 0x30000000);
define('ZEND_FETCH_GLOBAL_LOCK', 0x40000000);
define('ZEND_FETCH_LEXICAL', 0x50000000);
define('ZEND_FETCH_TYPE_MASK', 0x70000000);
}
else {
define('ZEND_FETCH_GLOBAL', 0);
define('ZEND_FETCH_LOCAL', 1);
define('ZEND_FETCH_STATIC', 2);
define('ZEND_FETCH_STATIC_MEMBER', 3);
define('ZEND_FETCH_GLOBAL_LOCK', 4);
}
define('ZEND_FETCH_CLASS_DEFAULT', 0);
define('ZEND_FETCH_CLASS_SELF', 1);
define('ZEND_FETCH_CLASS_PARENT', 2);
define('ZEND_FETCH_CLASS_MAIN', 3);
define('ZEND_FETCH_CLASS_GLOBAL', 4);
define('ZEND_FETCH_CLASS_AUTO', 5);
define('ZEND_FETCH_CLASS_INTERFACE', 6);
define('ZEND_FETCH_CLASS_STATIC', 7);
if (ZEND_ENGINE_2_4) {
define('ZEND_FETCH_CLASS_TRAIT', 14);
}
if (ZEND_ENGINE_2_3) {
define('ZEND_FETCH_CLASS_MASK', 0xF);
}
define('ZEND_EVAL', (1<<0));
define('ZEND_INCLUDE', (1<<1));
define('ZEND_INCLUDE_ONCE', (1<<2));
define('ZEND_REQUIRE', (1<<3));
define('ZEND_REQUIRE_ONCE', (1<<4));
define('ZEND_ISSET', (1<<0));
define('ZEND_ISEMPTY', (1<<1));
if (ZEND_ENGINE_2_4) {
define('EXT_TYPE_UNUSED', (1<<5));
}
else {
define('EXT_TYPE_UNUSED', (1<<0));
}
define('ZEND_FETCH_STANDARD', 0);
define('ZEND_FETCH_ADD_LOCK', 1);
define('ZEND_FE_FETCH_BYREF', 1);
define('ZEND_FE_FETCH_WITH_KEY', 2);
define('ZEND_MEMBER_FUNC_CALL', 1<<0);
define('ZEND_CTOR_CALL', 1<<1);
define('ZEND_ARG_SEND_BY_REF', (1<<0));
define('ZEND_ARG_COMPILE_TIME_BOUND', (1<<1));
define('ZEND_ARG_SEND_FUNCTION', (1<<2));
define('BYREF_NONE', 0);
define('BYREF_FORCE', 1);
define('BYREF_ALLOW', 2);
define('BYREF_FORCE_REST', 3);
define('IS_NULL', 0);
define('IS_LONG', 1);
define('IS_DOUBLE', 2);
define('IS_STRING', 3);
define('IS_ARRAY', 4);
define('IS_OBJECT', 5);
define('IS_BOOL', 6);
define('IS_RESOURCE', 7);
define('IS_CONSTANT', 8);
define('IS_CONSTANT_ARRAY', 9);
@define('XC_IS_CV', 16);
/*
if (preg_match_all('!XC_[A-Z_]+!', file_get_contents(__FILE__), $ms)) {
$verdiff = array();
foreach ($ms[0] as $k) {
if (!defined($k)) {
$verdiff[$k] = -1;
define($k, -1);
}
}
var_export($verdiff);
}
/*/
foreach (array (
'XC_HANDLE_EXCEPTION' => -1,
'XC_FETCH_CLASS' => -1,
'XC_FETCH_' => -1,
'XC_FETCH_DIM_' => -1,
'XC_ASSIGN_DIM' => -1,
'XC_UNSET_DIM' => -1,
'XC_UNSET_OBJ' => -1,
'XC_ASSIGN_OBJ' => -1,
'XC_ISSET_ISEMPTY_DIM_OBJ' => -1,
'XC_ISSET_ISEMPTY_PROP_OBJ' => -1,
'XC_ISSET_ISEMPTY_VAR' => -1,
'XC_INIT_STATIC_METHOD_CALL' => -1,
'XC_INIT_METHOD_CALL' => -1,
'XC_VERIFY_ABSTRACT_CLASS' => -1,
'XC_DECLARE_CLASS' => -1,
'XC_DECLARE_INHERITED_CLASS' => -1,
'XC_DECLARE_INHERITED_CLASS_DELAYED' => -1,
'XC_ADD_INTERFACE' => -1,
'XC_POST_DEC_OBJ' => -1,
'XC_POST_INC_OBJ' => -1,
'XC_PRE_DEC_OBJ' => -1,
'XC_PRE_INC_OBJ' => -1,
'XC_UNSET_OBJ' => -1,
'XC_JMP_NO_CTOR' => -1,
'XC_FETCH_' => -1,
'XC_FETCH_DIM_' => -1,
'XC_UNSET_DIM_OBJ' => -1,
'XC_ISSET_ISEMPTY' => -1,
'XC_INIT_FCALL_BY_FUNC' => -1,
'XC_DO_FCALL_BY_FUNC' => -1,
'XC_DECLARE_FUNCTION_OR_CLASS' => -1,
'XC_INIT_NS_FCALL_BY_NAME' => -1,
'XC_GOTO' => -1,
'XC_CATCH' => -1,
'XC_THROW' => -1,
'XC_INSTANCEOF' => -1,
'XC_DECLARE_FUNCTION' => -1,
'XC_RAISE_ABSTRACT_ERROR' => -1,
'XC_DECLARE_CONST' => -1,
'XC_USER_OPCODE' => -1,
'XC_JMP_SET' => -1,
'XC_DECLARE_LAMBDA_FUNCTION' => -1,
) as $k => $v) {
if (!defined($k)) {
define($k, $v);
}
}
//* XC_UNDEF XC_OP_DATA
$content = file_get_contents(__FILE__);
for ($i = 0; $opname = xcache_get_opcode($i); $i ++) {
if (!preg_match("/\\bXC_" . $opname . "\\b(?!')/", $content)) {
echo "not done ", $opname, "\n";
}
}
// */
// }}}