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decompiler: massive improvements for php 5 and 5.3 

git-svn-id: svn://svn.lighttpd.net/xcache/trunk@749 c26eb9a1-5813-0410-bd6c-c2e55f420ca7
3.0
Xuefer 11 years ago
parent
5edca12e80
commit
cccdfd61aa
4 changed files with 320 additions and 130 deletions
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  1. 319
      Decompiler.class.php
  2. 95
      decompilesample.php
  3. 30
      disassembler.c
  4. 6
      utils.c

319
Decompiler.class.php
Unescape View File

@ -70,6 +70,28 @@ function value($value) // {{{
return $value;
}
// }}}
function unquoteProperty($str, $indent = '') // {{{
{
$str = str($str, $indent);
if (preg_match("!^'[\\w_][\\w\\d_]*'\$!", $str)) {
return substr($str, 1, -1);
}
else {
return "{" . $str . "}";
}
}
// }}}
function unquoteName($str, $indent = '') // {{{
{
$str = str($str, $indent);
if (preg_match("!^'[\\w_][\\w\\d_]*'\$!", $str)) {
return substr($str, 1, -1);
}
else {
return $str;
}
}
// }}}
class Decompiler_Object // {{{
{
}
@ -153,6 +175,10 @@ class Decompiler_Fetch extends Decompiler_Code // {{{
case ZEND_FETCH_LOCAL:
return '$' . 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:
@ -183,18 +209,25 @@ 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')) {
$exp = foldToCode($this->value->obj->src, $indent);
$exp = str($this->value->obj->src, $indent);
}
else {
$exp = foldToCode($this->value, $indent);
$exp = str($this->value, $indent);
}
foreach ($this->offsets as $dim) {
$exp .= '[' . foldToCode($dim, $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 $exp;
}
@ -219,7 +252,7 @@ class Decompiler_List extends Decompiler_Code // {{{
if (!isset($dim->assign)) {
return foldToCode($dim, $indent);
}
return foldToCode($this->dims[0]->assign, $indent) . ' = ' . foldToCode($dim, $indent);
return foldToCode($this->dims[0]->assign, $indent) . ' = ' . str($dim, $indent);
}
/* flatten dims */
$assigns = array();
@ -230,7 +263,7 @@ class Decompiler_List extends Decompiler_Code // {{{
}
$assign = foldToCode($dim->assign, $indent);
}
return $this->toList($assigns) . ' = ' . foldToCode($this->src, $indent);
return $this->toList($assigns) . ' = ' . str($this->src, $indent);
}
function toList($assigns)
@ -376,7 +409,6 @@ class Decompiler_ForeachBox extends Decompiler_Box // {{{
class Decompiler
{
var $rName = '!^[\\w_][\\w\\d_]*$!';
var $rQuotedName = "!^'[\\w_][\\w\\d_]*'\$!";
function Decompiler()
{
@ -438,12 +470,12 @@ class Decompiler
$oldticks = $curticks;
$curticks = $toticks;
if (!$curticks) {
echo $origindent, "}\n";
echo $origindent, "}\n\n";
$indent = $origindent;
}
else {
if ($oldticks) {
echo $origindent, "}\n";
echo $origindent, "}\n\n";
}
else if (!$oldticks) {
$indent .= INDENT;
@ -568,6 +600,7 @@ class Decompiler
*/
$op['line'] = $i;
switch ($op['opcode']) {
case XC_GOTO:
case XC_JMP:
$target = $op['op1']['var'];
$op['jmpouts'] = array($target);
@ -586,6 +619,7 @@ class Decompiler
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:
@ -771,15 +805,6 @@ class Decompiler
$this->outputCode($EX, $next, $last, $indent);
}
// }}}
function unquoteName($str) // {{{
{
$str = str($str);
if (preg_match($this->rQuotedName, $str)) {
$str = substr($str, 1, -1);
}
return $str;
}
// }}}
function dasmBasicBlock(&$EX, $opline, $last) // {{{
{
$T = &$EX['Ts'];
@ -842,12 +867,28 @@ class Decompiler
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 ' . $this->unquoteName($this->getOpVal($op1, $EX));
$EX['fbc'] = 'new ' . unquoteName($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))) {
@ -864,26 +905,28 @@ class Decompiler
$istmpres = true;
}
else {
$class = $op2['constant'];
if (is_object($class)) {
$class = get_class($class);
$class = $this->getOpVal($op2, $EX);
if (isset($op2['constant'])) {
$class = unquoteName($class);
}
}
$resvar = $class;
break;
// }}}
case XC_FETCH_CONSTANT: // {{{
if ($op1['op_type'] == XC_IS_UNUSED) {
$resvar = $op2['constant'];
break;
}
if ($op1['op_type'] == XC_IS_CONST) {
$resvar = $op1['constant'];
}
else if ($op1['op_type'] == XC_IS_UNUSED) {
$resvar = $op2['constant'];
}
else {
$class = $T[$op1['var']];
assert($class[0] == 'class');
$resvar = $class[1] . '::' . $op2['constant'];
$resvar = $this->getOpVal($op1, $EX);
}
$resvar = str($resvar) . '::' . unquoteName($this->getOpVal($op2, $EX));
break;
// }}}
// {{{ case XC_FETCH_*
@ -904,11 +947,11 @@ class Decompiler
switch ($fetchtype) {
case ZEND_FETCH_STATIC_MEMBER:
$class = $this->getOpVal($op2, $EX);
$rvalue = $class . '::$' . $this->unquoteName($rvalue);
$rvalue = str($class) . '::$' . unquoteName($rvalue, $EX);
break;
default:
$name = $this->unquoteName($rvalue);
$globalname = xcache_is_autoglobal($name) ? "\$$name" : "\$GLOBALS[$rvalue]";
$name = unquoteName($rvalue, $EX);
$globalname = xcache_is_autoglobal($name) ? "\$$name" : "\$GLOBALS[" . str($rvalue) . "]";
$rvalue = new Decompiler_Fetch($rvalue, $fetchtype, $globalname);
break;
}
@ -930,20 +973,23 @@ class Decompiler
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_DIM_OBJ:
case XC_UNSET_OBJ:
$src = $this->getOpVal($op1, $EX, false);
if (is_a($src, "Decompiler_ForeachBox")) {
$src->iskey = $this->getOpVal($op2, $EX);
$resvar = $src;
break;
}
else if (is_a($src, "Decompiler_DimBox")) {
if (is_a($src, "Decompiler_DimBox")) {
$dimbox = $src;
}
else {
if (!is_a($src, "Decompiler_ListBox")) {
$list = new Decompiler_List($this->getOpVal($op1, $EX, false));
$op1val = $this->getOpVal($op1, $EX, false);
$list = new Decompiler_List(isset($op1val) ? $op1val : '$this');
$src = new Decompiler_ListBox($list);
if (!isset($op1['var'])) {
@ -967,16 +1013,20 @@ class Decompiler
else if ($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) . ' = ' . $rvalue;
$resvar = str($lvalue, $EX) . ' = ' . str($rvalue);
}
else if ($opc == XC_UNSET_DIM) {
else if ($opc == XC_UNSET_DIM || $opc == XC_UNSET_OBJ) {
$op['php'] = "unset(" . str($rvalue, $EX) . ")";
$lastphpop = &$op;
}
@ -1010,7 +1060,7 @@ class Decompiler
$lvalue = $this->getOpVal($op1, $EX);
$rvalue = $this->getOpVal($op2, $EX, false);
if (is_a($rvalue, 'Decompiler_Fetch')) {
$src = foldToCode($rvalue->src, $EX);
$src = str($rvalue->src, $EX);
if (substr($src, 1, -1) == substr($lvalue, 1)) {
switch ($rvalue->fetchType) {
case ZEND_FETCH_GLOBAL:
@ -1049,14 +1099,7 @@ class Decompiler
if (!isset($obj)) {
$obj = '$this';
}
$prop = $this->getOpVal($op2, $EX);
if (preg_match($this->rQuotedName, $prop)) {
$prop = substr($prop, 1, -1);;
$rvalue = "{$obj}->$prop";
}
else {
$rvalue = "{$obj}->{" . "$prop}";
}
$rvalue = str($obj) . "->" . unquoteProperty($this->getOpVal($op2, $EX), $EX);
if ($res['op_type'] != XC_IS_UNUSED) {
$resvar = $rvalue;
}
@ -1064,7 +1107,7 @@ class Decompiler
++ $i;
$lvalue = $rvalue;
$rvalue = $this->getOpVal($opcodes[$i]['op1'], $EX);
$resvar = "$lvalue = $rvalue";
$resvar = "$lvalue = " . str($rvalue);
}
break;
// }}}
@ -1124,12 +1167,7 @@ class Decompiler
break;
// }}}
case XC_INIT_STATIC_METHOD_CALL:
case XC_INIT_METHOD_CALL:
case XC_INIT_FCALL_BY_FUNC:
case XC_INIT_FCALL_BY_NAME: // {{{
if (($ext & ZEND_CTOR_CALL)) {
break;
}
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, $EX);
@ -1138,7 +1176,7 @@ class Decompiler
}
if ($opc == XC_INIT_STATIC_METHOD_CALL || /* PHP4 */ isset($op1['constant'])) {
$EX['object'] = null;
$EX['called_scope'] = $this->unquoteName($obj);
$EX['called_scope'] = unquoteName($obj, $EX);
}
else {
$EX['object'] = $obj;
@ -1153,13 +1191,26 @@ class Decompiler
$EX['called_scope'] = null;
}
if ($opc == XC_INIT_FCALL_BY_FUNC) {
$which = $op1['var'];
$EX['fbc'] = $EX['op_array']['funcs'][$which]['name'];
$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';
}
else {
$EX['fbc'] = $this->getOpVal($op2, $EX, false);
break;
// }}}
case XC_INIT_FCALL_BY_NAME: // {{{
if (!ZEND_ENGINE_2 && ($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:
@ -1169,14 +1220,14 @@ class Decompiler
$resvar = $fname . "($args)";
break;
case XC_DO_FCALL:
$fname = $this->unquoteName($this->getOpVal($op1, $EX, false));
$fname = unquoteName($this->getOpVal($op1, $EX, false), $EX);
$args = $this->popargs($EX, $ext);
$resvar = $fname . "($args)";
break;
case XC_DO_FCALL_BY_NAME: // {{{
$object = null;
$fname = $this->unquoteName($EX['fbc']);
$fname = unquoteName($EX['fbc'], $EX);
if (!is_int($EX['object'])) {
$object = $EX['object'];
}
@ -1210,7 +1261,7 @@ class Decompiler
exit;
}
$class = &$this->dc['class_table'][$key];
$class['name'] = $this->unquoteName($this->getOpVal($op2, $EX));
$class['name'] = unquoteName($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];
@ -1220,18 +1271,31 @@ class Decompiler
$class['parent'] = null;
}
while ($i + 2 < $ic
&& $opcodes[$i + 2]['opcode'] == XC_ADD_INTERFACE
&& $opcodes[$i + 2]['op1']['var'] == $res['var']
&& $opcodes[$i + 1]['opcode'] == XC_FETCH_CLASS) {
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];
$impl = $this->unquoteName($this->getOpVal($fetchop['op2'], $EX));
$impl = unquoteName($this->getOpVal($fetchop['op2'], $EX), $EX);
$addop = &$opcodes[$i + 2];
$class['interfaces'][$addop['extended_value']] = $impl;
unset($fetchop, $addop);
$i += 2;
}
$this->dclass($class);
echo "\n";
unset($class);
break;
// }}}
@ -1246,18 +1310,17 @@ class Decompiler
$op2val = $this->getOpVal($op2, $EX);
switch ($opc) {
case XC_ADD_CHAR:
$op2val = foldToCode(chr($op2val), $EX);
$op2val = value(chr(str($op2val)));
break;
case XC_ADD_STRING:
$op2val = foldToCode($op2val, $EX);
break;
case XC_ADD_VAR:
break;
}
if ($op1val == "''") {
if (str($op1val) == "''") {
$rvalue = $op2val;
}
else if ($op2val == "''") {
else if (str($op2val) == "''") {
$rvalue = $op1val;
}
else {
@ -1327,7 +1390,7 @@ class Decompiler
case XC_INCLUDE_OR_EVAL: // {{{
$type = $op2['var']; // hack
$keyword = $this->includeTypes[$type];
$resvar = "$keyword(" . str($this->getOpVal($op1, $EX)) . ")";
$resvar = "$keyword " . str($this->getOpVal($op1, $EX));
break;
// }}}
case XC_FE_RESET: // {{{
@ -1365,6 +1428,7 @@ class Decompiler
// }}}
case XC_JMP_NO_CTOR:
break;
case XC_JMP_SET: // ?:
case XC_JMPNZ: // while
case XC_JMPZNZ: // for
case XC_JMPZ_EX: // and
@ -1402,6 +1466,7 @@ class Decompiler
}
break;
// }}}
case XC_GOTO:
case XC_JMP: // {{{
$op['cond'] = null;
$op['isjmp'] = true;
@ -1436,24 +1501,17 @@ class Decompiler
case XC_PRE_INC_OBJ: // {{{
$flags = array_flip(explode('_', $opname));
if (isset($flags['OBJ'])) {
$resvar = $this->getOpVal($op1, $EX);
$prop = $this->unquoteName($this->getOpVal($op2, $EX));
if ($prop{0} == '$') {
$resvar = $resvar . "{" . $prop . "}";
}
else {
$resvar = $resvar . "->" . $prop;
}
$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;
$resvar .= $opstr;
}
else {
$resvar = "$opstr $resvar";
$resvar = "$opstr$resvar";
}
break;
// }}}
@ -1491,6 +1549,12 @@ class Decompiler
case XC_EXT_FCALL_END:
case XC_EXT_NOP:
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_FUNCTION_OR_CLASS:
/* always removed by compiler */
break;
@ -1498,6 +1562,14 @@ class Decompiler
$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";
// }}}
@ -1558,14 +1630,14 @@ class Decompiler
case XC_IS_VAR:
$d[$kk] = '$' . $op[$k]['var'];
if ($kk != 'res') {
$d[$kk] .= ':' . $this->getOpVal($op[$k], $EX);
$d[$kk] .= ':' . str($this->getOpVal($op[$k], $EX));
}
break;
case XC_IS_TMP_VAR:
$d[$kk] = '#' . $op[$k]['var'];
if ($kk != 'res') {
$d[$kk] .= ':' . $this->getOpVal($op[$k], $EX);
$d[$kk] .= ':' . str($this->getOpVal($op[$k], $EX));
}
break;
@ -1660,7 +1732,6 @@ class Decompiler
function dfunction($func, $indent = '', $nobody = false) // {{{
{
if ($nobody) {
$body = ";\n";
$EX = array();
$EX['op_array'] = &$func['op_array'];
$EX['recvs'] = array();
@ -1675,12 +1746,31 @@ class Decompiler
}
}
echo 'function ', $func['op_array']['function_name'], '(';
$functionName = $func['op_array']['function_name'];
if ($functionName == '{closure}') {
$functionName = '';
}
echo 'function ', $functionName, '(';
$this->dargs($EX, $indent);
echo ")\n";
echo $indent, "{\n";
echo $body;
echo "$indent}\n";
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 = '') // {{{
@ -1694,19 +1784,18 @@ class Decompiler
$isinterface = false;
if (!empty($class['ce_flags'])) {
if ($class['ce_flags'] & ZEND_ACC_INTERFACE) {
echo 'interface ';
$isinterface = true;
}
else {
if ($class['ce_flags'] & ZEND_ACC_IMPLICIT_ABSTRACT) {
if ($class['ce_flags'] & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) {
echo "abstract ";
}
if ($class['ce_flags'] & ZEND_ACC_FINAL) {
if ($class['ce_flags'] & ZEND_ACC_FINAL_CLASS) {
echo "final ";
}
}
}
echo 'class ', $class['name'];
echo $isinterface ? 'interface ' : 'class ', $class['name'];
if ($class['parent']) {
echo ' extends ', $class['parent'];
}
@ -1821,9 +1910,11 @@ class Decompiler
echo "\n";
}
echo $newindent;
$isAbstractMethod = false;
if (isset($opa['fn_flags'])) {
if ($opa['fn_flags'] & ZEND_ACC_ABSTRACT) {
if (($opa['fn_flags'] & ZEND_ACC_ABSTRACT) && !$isinterface) {
echo "abstract ";
$isAbstractMethod = true;
}
if ($opa['fn_flags'] & ZEND_ACC_FINAL) {
echo "final ";
@ -1847,7 +1938,7 @@ class Decompiler
break;
}
}
$this->dfunction($func, $newindent, $isinterface);
$this->dfunction($func, $newindent, $isinterface || $isAbstractMethod);
if ($opa['function_name'] == 'Decompiler') {
//exit;
}
@ -1878,22 +1969,21 @@ class Decompiler
// }}}
function output() // {{{
{
echo "<?". "php\n";
echo "<?". "php\n\n";
foreach ($this->dc['class_table'] as $key => $class) {
if ($key{0} != "\0") {
echo "\n";
$this->dclass($class);
echo "\n";
}
}
foreach ($this->dc['function_table'] as $key => $func) {
if ($key{0} != "\0") {
echo "\n";
$this->dfunction($func);
echo "\n";
}
}
echo "\n";
$this->dop_array($this->dc['op_array']);
echo "\n?" . ">\n";
return true;
@ -1902,6 +1992,12 @@ class Decompiler
}
// {{{ 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);
@ -1911,6 +2007,9 @@ 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);
@ -1927,12 +2026,6 @@ define('ZEND_ACC_ALLOW_STATIC', 0x10000);
define('ZEND_ACC_SHADOW', 0x2000);
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.");
if (ZEND_ENGINE_2_4) {
define('ZEND_FETCH_GLOBAL', 0x00000000);
define('ZEND_FETCH_LOCAL', 0x10000000);
@ -2030,7 +2123,7 @@ foreach (array (
'XC_FETCH_DIM_' => -1,
'XC_ASSIGN_DIM' => -1,
'XC_UNSET_DIM' => -1,
'XC_FETCH_OBJ_' => -1,
'XC_UNSET_OBJ' => -1,
'XC_ASSIGN_OBJ' => -1,
'XC_ISSET_ISEMPTY_DIM_OBJ' => -1,
'XC_ISSET_ISEMPTY_PROP_OBJ' => -1,
@ -2051,18 +2144,28 @@ foreach (array (
'XC_FETCH_' => -1,
'XC_FETCH_DIM_' => -1,
'XC_UNSET_DIM_OBJ' => -1,
'XC_FETCH_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
//* 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)) {

95
decompilesample.php
Unescape View File

@ -31,13 +31,22 @@ abstract class ClassName
public function __construct($a, $b)
{
echo CONST_VALUE;
echo $this::CONST_VALUE;
echo $a::CONST_VALUE;
echo ClassName::CONST_VALUE;
unset(ClassName::$classProp);
unset($obj->objProp);
unset($this->thisProp);
unset($array['index']->valueProp);
unset($obj->array['index']);
unset($this->array['index']);
$obj->objProp = 1;
$this->thisProp = 1;
$array['index']->valueProp = 1;
$array['index'] = 1;
$array[1] = 1;
}
/** doc */
abstract function abastractMethod();
abstract public function abastractMethod();
/** doc */
public function method(array $a = NULL, $b = NULL)
@ -78,13 +87,35 @@ interface IInterface
public function nothing();
}
function f1($f)
{
echo $f;
}
final class Child extends ClassName implements IInterface
{
public function __construct()
{
parent::__construct();
ClassName::__construct();
echo __CLASS__;
echo __METHOD__;
throw new Exception();
$this->methodCall();
}
public function __destruct()
{
parent::__destruct();
functionCall();
}
static public function __callStatic($name, $args)
{
}
public function __toString()
{
}
public function __set($name, $value)
@ -110,10 +141,22 @@ final class Child extends ClassName implements IInterface
public function __wakeup()
{
}
public function __clone()
{
return array();
}
}
echo str_replace(array('a' => 'a', 'b' => 'c'), 'b');
$object = new ClassName();
$object = new $className();
try {
echo 'code being try';
}
catch (Exception $e) {
echo $e;
}
$cloned = clone $object;
$a = 1;
$a = $b + $c;
@ -134,21 +177,25 @@ $a = $b >> $c;
$a = $b == $c;
$a = $b === $c;
$a = $b != $c;
$a = $b <> $c;
$a = $b < $c;
$a = $b <= $c;
$a = $b > $c;
$a = $b <= $c;
$a = $b++;
$a = ++$b;
$a = $obj->b++;
$a = ++$obj->b;
$a = $b--;
$a = --$b;
$a = $obj->b--;
$a = --$obj->b;
$a = $b and $c;
$a = $b or $c;
$a = $b xor $c;
$a = !$b;
$a = $b && $c;
$a = $b || $c;
$a = $b ? $c : $d;
$a = f1() ? f2() : f3();
$a = $b instanceof ClassName;
if ($a) {
@ -175,7 +222,7 @@ for ($i = 1; $i < 10; ++$i) {
}
foreach ($array as $key => $value) {
echo "$key = $value\n";
echo $key . ' = ' . $value . "\n";
continue;
}
@ -203,29 +250,37 @@ require_once 'require_once.php';
include 'include.php';
include_once 'include_once.php';
//* >= PHP 5.3
echo $this::CONST_VALUE;
echo $a::CONST_VALUE;
$this::__construct();
$obj::__construct();
$a = $b ?: $d;
$a = f1() ?: f2();
echo 'goto a';
goto a;
echo 'foo';
a:
echo 'bar';
for ($i = 1; $i <= 2; ++$i) {
goto a;
}
a:
echo 'label a';
echo preg_replace_callback('~-([a-z])~', function ($match) {
return strtoupper($match[1]);
return strtoupper($match[1]);
}, 'hello-world');
$greet = function($name)
{
$greet = function ($name) {
printf("Hello %s\r\n", $name);
};
$greet('World');
$greet('PHP');
$total = 0.00;
$callback = function ($quantity, $product) use ($tax, &$total)
{
$pricePerItem = constant(__CLASS__ . "::PRICE_" . strtoupper($product));
$total += ($pricePerItem * $quantity) * ($tax + 1.0);
$total = 0;
$callback = function ($quantity, $product) use ($tax, &$total) {
$pricePerItem = constant('PRICE_' . strtoupper($product));
$total += $pricePerItem * $quantity * ($tax + 1);
};
// */
?>

30
disassembler.c
Unescape View File

@ -36,19 +36,45 @@ static void xc_dasm(xc_sandbox_t *sandbox, zval *dst, zend_op_array *op_array TS
xc_dasm_zend_op_array(zv, op_array TSRMLS_CC);
add_assoc_zval_ex(dst, ZEND_STRS("op_array"), zv);
buf = emalloc(bufsize);
ALLOC_INIT_ZVAL(list);
array_init(list);
b = TG(internal_function_tail) ? TG(internal_function_tail)->pListNext : TG(function_table).pListHead;
for (; b; b = b->pListNext) {
int keysize, keyLength;
ALLOC_INIT_ZVAL(zv);
array_init(zv);
xc_dasm_zend_function(zv, b->pData TSRMLS_CC);
add_u_assoc_zval_ex(list, BUCKET_KEY_TYPE(b), ZSTR(BUCKET_KEY_S(b)), b->nKeyLength, zv);
keysize = BUCKET_KEY_SIZE(b) + 2;
if (keysize > bufsize) {
do {
bufsize *= 2;
} while (keysize > bufsize);
buf = erealloc(buf, bufsize);
}
memcpy(buf, BUCKET_KEY_S(b), keysize);
buf[keysize - 2] = buf[keysize - 1] = ""[0];
keyLength = b->nKeyLength;
#ifdef IS_UNICODE
if (BUCKET_KEY_TYPE(b) == IS_UNICODE) {
if (buf[0] == ""[0] && buf[1] == ""[0]) {
keyLength ++;
}
} else
#endif
{
if (buf[0] == ""[0]) {
keyLength ++;
}
}
add_u_assoc_zval_ex(list, BUCKET_KEY_TYPE(b), ZSTR(buf), keyLength, zv);
}
add_assoc_zval_ex(dst, ZEND_STRS("function_table"), list);
buf = emalloc(bufsize);
ALLOC_INIT_ZVAL(list);
array_init(list);
b = TG(internal_class_tail) ? TG(internal_class_tail)->pListNext : TG(class_table).pListHead;

6
utils.c
Unescape View File

@ -244,6 +244,12 @@ static void xc_fix_opcode_ex_znode(int tofix, xc_op_spec_t spec, zend_uchar *op_
case IS_TMP_VAR:
break;
case IS_CONST:
if (spec == OPSPEC_UCLASS) {
break;
}
/* fall */
default:
/* TODO: data lost, find a way to keep it */
/* assert(*op_type == IS_CONST); */

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