--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Serializer/Adapter/PythonPickle.php Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,1494 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Serializer
+ * @subpackage Adapter
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: PythonPickle.php 21187 2010-02-24 01:22:01Z stas $
+ */
+
+/** @see Zend_Serializer_Adapter_AdapterAbstract */
+require_once 'Zend/Serializer/Adapter/AdapterAbstract.php';
+
+/**
+ * @link http://www.python.org
+ * @see Phython3.1/Lib/pickle.py
+ * @see Phython3.1/Modules/_pickle.c
+ * @link http://pickle-js.googlecode.com
+ * @category Zend
+ * @package Zend_Serializer
+ * @subpackage Adapter
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Serializer_Adapter_PythonPickle extends Zend_Serializer_Adapter_AdapterAbstract
+{
+ /* Pickle opcodes. See pickletools.py for extensive docs. The listing
+ here is in kind-of alphabetical order of 1-character pickle code.
+ pickletools groups them by purpose. */
+ const OP_MARK = '('; // push special markobject on stack
+ const OP_STOP = '.'; // every pickle ends with STOP
+ const OP_POP = '0'; // discard topmost stack item
+ const OP_POP_MARK = '1'; // discard stack top through topmost markobject
+ const OP_DUP = '2'; // duplicate top stack item
+ const OP_FLOAT = 'F'; // push float object; decimal string argument
+ const OP_INT = 'I'; // push integer or bool; decimal string argument
+ const OP_BININT = 'J'; // push four-byte signed int
+ const OP_BININT1 = 'K'; // push 1-byte unsigned int
+ const OP_LONG = 'L'; // push long; decimal string argument
+ const OP_BININT2 = 'M'; // push 2-byte unsigned int
+ const OP_NONE = 'N'; // push None
+ const OP_PERSID = 'P'; // push persistent object; id is taken from string arg
+ const OP_BINPERSID = 'Q'; // " " " ; " " " " stack
+ const OP_REDUCE = 'R'; // apply callable to argtuple, both on stack
+ const OP_STRING = 'S'; // push string; NL-terminated string argument
+ const OP_BINSTRING = 'T'; // push string; counted binary string argument
+ const OP_SHORT_BINSTRING = 'U'; // " " ; " " " " < 256 bytes
+ const OP_UNICODE = 'V'; // push Unicode string; raw-unicode-escaped'd argument
+ const OP_BINUNICODE = 'X'; // " " " ; counted UTF-8 string argument
+ const OP_APPEND = 'a'; // append stack top to list below it
+ const OP_BUILD = 'b'; // call __setstate__ or __dict__.update()
+ const OP_GLOBAL = 'c'; // push self.find_class(modname, name); 2 string args
+ const OP_DICT = 'd'; // build a dict from stack items
+ const OP_EMPTY_DICT = '}'; // push empty dict
+ const OP_APPENDS = 'e'; // extend list on stack by topmost stack slice
+ const OP_GET = 'g'; // push item from memo on stack; index is string arg
+ const OP_BINGET = 'h'; // " " " " " " ; " " 1-byte arg
+ const OP_INST = 'i'; // build & push class instance
+ const OP_LONG_BINGET = 'j'; // push item from memo on stack; index is 4-byte arg
+ const OP_LIST = 'l'; // build list from topmost stack items
+ const OP_EMPTY_LIST = ']'; // push empty list
+ const OP_OBJ = 'o'; // build & push class instance
+ const OP_PUT = 'p'; // store stack top in memo; index is string arg
+ const OP_BINPUT = 'q'; // " " " " " ; " " 1-byte arg
+ const OP_LONG_BINPUT = 'r'; // " " " " " ; " " 4-byte arg
+ const OP_SETITEM = 's'; // add key+value pair to dict
+ const OP_TUPLE = 't'; // build tuple from topmost stack items
+ const OP_EMPTY_TUPLE = ')'; // push empty tuple
+ const OP_SETITEMS = 'u'; // modify dict by adding topmost key+value pairs
+ const OP_BINFLOAT = 'G'; // push float; arg is 8-byte float encoding
+
+ /* Protocol 2 */
+ const OP_PROTO = "\x80"; // identify pickle protocol
+ const OP_NEWOBJ = "\x81"; // build object by applying cls.__new__ to argtuple
+ const OP_EXT1 = "\x82"; // push object from extension registry; 1-byte index
+ const OP_EXT2 = "\x83"; // ditto, but 2-byte index
+ const OP_EXT4 = "\x84"; // ditto, but 4-byte index
+ const OP_TUPLE1 = "\x85"; // build 1-tuple from stack top
+ const OP_TUPLE2 = "\x86"; // build 2-tuple from two topmost stack items
+ const OP_TUPLE3 = "\x87"; // build 3-tuple from three topmost stack items
+ const OP_NEWTRUE = "\x88"; // push True
+ const OP_NEWFALSE = "\x89"; // push False
+ const OP_LONG1 = "\x8a"; // push long from < 256 bytes
+ const OP_LONG4 = "\x8b"; // push really big long
+
+ /* Protocol 3 (Python 3.x) */
+ const OP_BINBYTES = 'B'; // push bytes; counted binary string argument
+ const OP_SHORT_BINBYTES = 'C'; // " " ; " " " " < 256 bytes
+
+ /**
+ * @var bool Whether or not this is a PHP 6 binary
+ */
+ protected static $_isPhp6 = null;
+
+ /**
+ * @var bool Whether or not the system is little-endian
+ */
+ protected static $_isLittleEndian = null;
+
+ /**
+ * @var array Strings representing quotes
+ */
+ protected static $_quoteString = array(
+ '\\' => '\\\\',
+ "\x00" => '\\x00', "\x01" => '\\x01', "\x02" => '\\x02', "\x03" => '\\x03',
+ "\x04" => '\\x04', "\x05" => '\\x05', "\x06" => '\\x06', "\x07" => '\\x07',
+ "\x08" => '\\x08', "\x09" => '\\t', "\x0a" => '\\n', "\x0b" => '\\x0b',
+ "\x0c" => '\\x0c', "\x0d" => '\\r', "\x0e" => '\\x0e', "\x0f" => '\\x0f',
+ "\x10" => '\\x10', "\x11" => '\\x11', "\x12" => '\\x12', "\x13" => '\\x13',
+ "\x14" => '\\x14', "\x15" => '\\x15', "\x16" => '\\x16', "\x17" => '\\x17',
+ "\x18" => '\\x18', "\x19" => '\\x19', "\x1a" => '\\x1a', "\x1b" => '\\x1b',
+ "\x1c" => '\\x1c', "\x1d" => '\\x1d', "\x1e" => '\\x1e', "\x1f" => '\\x1f',
+ "\xff" => '\\xff'
+ );
+
+ /**
+ * @var array Default options
+ */
+ protected $_options = array(
+ 'protocol' => 0,
+ );
+
+ // process vars
+ protected $_protocol = 0;
+ protected $_binary = false;
+ protected $_memo = array();
+ protected $_pickle = '';
+ protected $_pickleLen = 0;
+ protected $_pos = 0;
+ protected $_stack = array();
+ protected $_marker = null;
+
+ /**
+ * Constructor
+ *
+ * @link Zend_Serializer_Adapter_AdapterAbstract::__construct()
+ */
+ public function __construct($opts=array())
+ {
+ parent::__construct($opts);
+
+ // init
+ if (self::$_isLittleEndian === null) {
+ self::$_isLittleEndian = (pack('l', 1) === "\x01\x00\x00\x00");
+ }
+ if (self::$_isPhp6 === null) {
+ self::$_isPhp6 = !version_compare(PHP_VERSION, '6.0.0', '<');
+ }
+
+ $this->_marker = new stdClass();
+ }
+
+ /**
+ * Set an option
+ *
+ * @link Zend_Serializer_Adapter_AdapterAbstract::setOption()
+ * @param string $name
+ * @param mixed $value
+ * @return Zend_Serializer_Adapter_PythonPickle
+ */
+ public function setOption($name, $value)
+ {
+ switch ($name) {
+ case 'protocol':
+ $value = $this->_checkProtocolNumber($value);
+ break;
+ }
+
+ return parent::setOption($name, $value);
+ }
+
+ /**
+ * Check and normalize pickle protocol number
+ *
+ * @param int $number
+ * @return int
+ * @throws Zend_Serializer_Exception
+ */
+ protected function _checkProtocolNumber($number)
+ {
+ $int = (int) $number;
+ if ($int < 0 || $int > 3) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Invalid or unknown protocol version "'.$number.'"');
+ }
+ return $int;
+ }
+
+ /* serialize */
+
+ /**
+ * Serialize PHP to PythonPickle format
+ *
+ * @param mixed $value
+ * @param array $opts
+ * @return string
+ */
+ public function serialize($value, array $opts = array())
+ {
+ $opts = $opts + $this->_options;
+
+ $this->_protocol = $this->_checkProtocolNumber($opts['protocol']);
+ $this->_binary = $this->_protocol != 0;
+
+ // clear process vars before serializing
+ $this->_memo = array();
+ $this->_pickle = '';
+
+ // write
+ if ($this->_protocol >= 2) {
+ $this->_writeProto($this->_protocol);
+ }
+ $this->_write($value);
+ $this->_writeStop();
+
+ // clear process vars after serializing
+ $this->_memo = array();
+ $pickle = $this->_pickle;
+ $this->_pickle = '';
+
+ return $pickle;
+ }
+
+ /**
+ * Write a value
+ *
+ * @param mixed $value
+ * @return void
+ * @throws Zend_Serializer_Exception on invalid or unrecognized value type
+ */
+ protected function _write($value)
+ {
+ if ($value === null) {
+ $this->_writeNull();
+ } elseif ($value === true) {
+ $this->_writeTrue();
+ } elseif ($value === false) {
+ $this->_writeFalse();
+ } elseif (is_int($value)) {
+ $this->_writeInt($value);
+ } elseif (is_float($value)) {
+ $this->_writeFloat($value);
+ } elseif (is_string($value)) {
+ // TODO: write unicode / binary
+ $this->_writeString($value);
+ } elseif (is_array($value)) {
+ if ($this->_isArrayAssoc($value)) {
+ $this->_writeArrayDict($value);
+ } else {
+ $this->_writeArrayList($value);
+ }
+ } elseif (is_object($value)) {
+ $this->_writeObject($value);
+ } else {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception(
+ 'PHP-Type "'.gettype($value).'" isn\'t serializable with '.get_class($this)
+ );
+ }
+ }
+
+ /**
+ * Write pickle protocol
+ *
+ * @param int $protocol
+ * @return void
+ */
+ protected function _writeProto($protocol)
+ {
+ $this->_pickle .= self::OP_PROTO . $protocol;
+ }
+
+ /**
+ * Write a get
+ *
+ * @param int $id Id of memo
+ * @return void
+ */
+ protected function _writeGet($id)
+ {
+ if ($this->_binary) {
+ if ($id <= 0xff) {
+ // BINGET + chr(i)
+ $this->_pickle .= self::OP_BINGET . chr($id);
+ } else {
+ // LONG_BINGET + pack("<i", i)
+ $idBin = pack('l', $id);
+ if (self::$_isLittleEndian === false) {
+ $idBin = strrev($bin);
+ }
+ $this->_pickle .= self::OP_LONG_BINGET . $idBin;
+ }
+ } else {
+ $this->_pickle .= self::OP_GET . $id . "\r\n";
+ }
+ }
+
+ /**
+ * Write a put
+ *
+ * @param int $id Id of memo
+ * @return void
+ */
+ protected function _writePut($id)
+ {
+ if ($this->_binary) {
+ if ($id <= 0xff) {
+ // BINPUT + chr(i)
+ $this->_pickle .= self::OP_BINPUT . chr($id);
+ } else {
+ // LONG_BINPUT + pack("<i", i)
+ $idBin = pack('l', $id);
+ if (self::$_isLittleEndian === false) {
+ $idBin = strrev($bin);
+ }
+ $this->_pickle .= self::OP_LONG_BINPUT . $idBin;
+ }
+ } else {
+ $this->_pickle .= self::OP_PUT . $id . "\r\n";
+ }
+ }
+
+ /**
+ * Write a null as None
+ *
+ * @return void
+ */
+ protected function _writeNull()
+ {
+ $this->_pickle .= self::OP_NONE;
+ }
+
+ /**
+ * Write a boolean true
+ *
+ * @return void
+ */
+ protected function _writeTrue()
+ {
+ if ($this->_protocol >= 2) {
+ $this->_pickle .= self::OP_NEWTRUE;
+ } else {
+ $this->_pickle .= self::OP_INT . "01\r\n";
+ }
+ }
+
+ /**
+ * Write a boolean false
+ *
+ * @return void
+ */
+ protected function _writeFalse()
+ {
+ if ($this->_protocol >= 2) {
+ $this->_pickle .= self::OP_NEWFALSE;
+ } else {
+ $this->_pickle .= self::OP_INT . "00\r\n";
+ }
+ }
+
+ /**
+ * Write an integer value
+ *
+ * @param int $value
+ * @return void
+ */
+ protected function _writeInt($value)
+ {
+ if ($this->_binary) {
+ if ($value >= 0) {
+ if ($value <= 0xff) {
+ // self.write(BININT1 + chr(obj))
+ $this->_pickle .= self::OP_BININT1 . chr($value);
+ } elseif ($value <= 0xffff) {
+ // self.write("%c%c%c" % (BININT2, obj&0xff, obj>>8))
+ $this->_pickle .= self::OP_BININT2 . pack('v', $value);
+ }
+ return;
+ }
+
+ // Next check for 4-byte signed ints:
+ $highBits = $value >> 31; // note that Python shift sign-extends
+ if ($highBits == 0 || $highBits == -1) {
+ // All high bits are copies of bit 2**31, so the value
+ // fits in a 4-byte signed int.
+ // self.write(BININT + pack("<i", obj))
+ $bin = pack('l', $value);
+ if (self::$_isLittleEndian === false) {
+ $bin = strrev($bin);
+ }
+ $this->_pickle .= self::OP_BININT . $bin;
+ return;
+ }
+ }
+
+ $this->_pickle .= self::OP_INT . $value . "\r\n";
+ }
+
+ /**
+ * Write a float value
+ *
+ * @param float $value
+ * @return void
+ */
+ protected function _writeFloat($value)
+ {
+ if ($this->_binary) {
+ // self.write(BINFLOAT + pack('>d', obj))
+ $bin = pack('d', $value);
+ if (self::$_isLittleEndian === true) {
+ $bin = strrev($bin);
+ }
+ $this->_pickle .= self::OP_BINFLOAT . $bin;
+ } else {
+ $this->_pickle .= self::OP_FLOAT . $value . "\r\n";
+ }
+ }
+
+ /**
+ * Write a string value
+ *
+ * @param string $value
+ * @return void
+ */
+ protected function _writeString($value)
+ {
+ if ( ($id=$this->_searchMomo($value)) !== false ) {
+ $this->_writeGet($id);
+ return;
+ }
+
+ if ($this->_binary) {
+ $n = strlen($value);
+ if ($n <= 0xff) {
+ // self.write(SHORT_BINSTRING + chr(n) + obj)
+ $this->_pickle .= self::OP_SHORT_BINSTRING . chr($n) . $value;
+ } else {
+ // self.write(BINSTRING + pack("<i", n) + obj)
+ $binLen = pack('l', $n);
+ if (self::$_isLittleEndian === false) {
+ $binLen = strrev($binLen);
+ }
+ $this->_pickle .= self::OP_BINSTRING . $binLen . $value;
+ }
+ } else {
+ $this->_pickle .= self::OP_STRING . $this->_quoteString($value) . "\r\n";
+ }
+
+ $this->_momorize($value);
+ }
+
+ /**
+ * Write an associative array value as dictionary
+ *
+ * @param array $value
+ * @return void
+ */
+ protected function _writeArrayDict(array $value)
+ {
+ if (($id=$this->_searchMomo($value)) !== false) {
+ $this->_writeGet($id);;
+ return;
+ }
+
+ $this->_pickle .= self::OP_MARK . self::OP_DICT;
+ $this->_momorize($value);
+
+ foreach ($value as $k => $v) {
+ $this->_pickle .= $this->_write($k)
+ . $this->_write($v)
+ . self::OP_SETITEM;
+ }
+ }
+
+ /**
+ * Write a simple array value as list
+ *
+ * @param array $value
+ * @return void
+ */
+ protected function _writeArrayList(array $value)
+ {
+ if (($id = $this->_searchMomo($value)) !== false) {
+ $this->_writeGet($id);
+ return;
+ }
+
+ $this->_pickle .= self::OP_MARK . self::OP_LIST;
+ $this->_momorize($value);
+
+ foreach ($value as $k => $v) {
+ $this->_pickle .= $this->_write($v) . self::OP_APPEND;
+ }
+ }
+
+ /**
+ * Write an object as an dictionary
+ *
+ * @param object $value
+ * @return void
+ */
+ protected function _writeObject($value)
+ {
+ // can't serialize php objects to python objects yet
+ $this->_writeArrayDict(get_object_vars($value));
+ }
+
+ /**
+ * Write stop
+ *
+ * @return void
+ */
+ protected function _writeStop()
+ {
+ $this->_pickle .= self::OP_STOP;
+ }
+
+ /* serialize helper */
+
+ /**
+ * Add a value to the memo and write the id
+ *
+ * @param mixed $value
+ * @return void
+ */
+ protected function _momorize($value)
+ {
+ $id = count($this->_memo);
+ $this->_memo[$id] = $value;
+ $this->_writePut($id);
+ }
+
+ /**
+ * Search a value in the meno and return the id
+ *
+ * @param mixed $value
+ * @return int|false The id or false
+ */
+ protected function _searchMomo($value)
+ {
+ return array_search($value, $this->_memo, true);
+ }
+
+ /**
+ * Is an array associative?
+ *
+ * @param array $value
+ * @return boolean
+ */
+ protected function _isArrayAssoc(array $value)
+ {
+ return array_diff_key($value, array_keys(array_keys($value)));
+ }
+
+ /**
+ * Quote/Escape a string
+ *
+ * @param string $str
+ * @return string quoted string
+ */
+ protected function _quoteString($str)
+ {
+ $quoteArr = self::$_quoteString;
+
+ if (($cntSingleQuote = substr_count($str, "'"))
+ && ($cntDoubleQuote = substr_count($str, '"'))
+ && ($cntSingleQuote < $cntDoubleQuote)
+ ) {
+ $quoteArr['"'] = '\\"';
+ $enclosure = '"';
+ } else {
+ $quoteArr["'"] = "\\'";
+ $enclosure = "'";
+ }
+
+ return $enclosure . strtr($str, $quoteArr) . $enclosure;
+ }
+
+ /* unserialize */
+
+ /**
+ * Unserialize from Python Pickle format to PHP
+ *
+ * @param string $pickle
+ * @param array $opts
+ * @return mixed
+ * @throws Zend_Serializer_Exception on invalid Pickle string
+ */
+ public function unserialize($pickle, array $opts = array())
+ {
+ // init process vars
+ $this->_pos = 0;
+ $this->_pickle = $pickle;
+ $this->_pickleLen = strlen($this->_pickle);
+ $this->_memo = array();
+ $this->_stack = array();
+
+ // read pickle string
+ while (($op=$this->_read(1)) !== self::OP_STOP) {
+ $this->_load($op);
+ }
+
+ if (!count($this->_stack)) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('No data found');
+ }
+
+ $ret = array_pop($this->_stack);
+
+ // clear process vars
+ $this->_pos = 0;
+ $this->_pickle = '';
+ $this->_pickleLen = 0;
+ $this->_memo = array();
+ $this->_stack = array();
+
+ return $ret;
+ }
+
+ /**
+ * Load a pickle opcode
+ *
+ * @param string $op
+ * @return void
+ * @throws Zend_Serializer_Exception on invalid opcode
+ */
+ protected function _load($op)
+ {
+ switch ($op) {
+ case self::OP_PUT:
+ $this->_loadPut();
+ break;
+ case self::OP_BINPUT:
+ $this->_loadBinPut();
+ break;
+ case self::OP_LONG_BINPUT:
+ $this->_loadLongBinPut();
+ break;
+ case self::OP_GET:
+ $this->_loadGet();
+ break;
+ case self::OP_BINGET:
+ $this->_loadBinGet();
+ break;
+ case self::OP_LONG_BINGET:
+ $this->_loadLongBinGet();
+ break;
+ case self::OP_NONE:
+ $this->_loadNone();
+ break;
+ case self::OP_NEWTRUE:
+ $this->_loadNewTrue();
+ break;
+ case self::OP_NEWFALSE:
+ $this->_loadNewFalse();
+ break;
+ case self::OP_INT:
+ $this->_loadInt();
+ break;
+ case self::OP_BININT:
+ $this->_loadBinInt();
+ break;
+ case self::OP_BININT1:
+ $this->_loadBinInt1();
+ break;
+ case self::OP_BININT2:
+ $this->_loadBinInt2();
+ break;
+ case self::OP_LONG:
+ $this->_loadLong();
+ break;
+ case self::OP_LONG1:
+ $this->_loadLong1();
+ break;
+ case self::OP_LONG4:
+ $this->_loadLong4();
+ break;
+ case self::OP_FLOAT:
+ $this->_loadFloat();
+ break;
+ case self::OP_BINFLOAT:
+ $this->_loadBinFloat();
+ break;
+ case self::OP_STRING:
+ $this->_loadString();
+ break;
+ case self::OP_BINSTRING:
+ $this->_loadBinString();
+ break;
+ case self::OP_SHORT_BINSTRING:
+ $this->_loadShortBinString();
+ break;
+ case self::OP_BINBYTES:
+ $this->_loadBinBytes();
+ break;
+ case self::OP_SHORT_BINBYTES:
+ $this->_loadShortBinBytes();
+ break;
+ case self::OP_UNICODE:
+ $this->_loadUnicode();
+ break;
+ case self::OP_BINUNICODE:
+ $this->_loadBinUnicode();
+ break;
+ case self::OP_MARK:
+ $this->_loadMark();
+ break;
+ case self::OP_LIST:
+ $this->_loadList();
+ break;
+ case self::OP_EMPTY_LIST:
+ $this->_loadEmptyList();
+ break;
+ case self::OP_APPEND:
+ $this->_loadAppend();
+ break;
+ case self::OP_APPENDS:
+ $this->_loadAppends();
+ break;
+ case self::OP_DICT:
+ $this->_loadDict();
+ break;
+ case self::OP_EMPTY_DICT:
+ $this->_loadEmptyDict();
+ break;
+ case self::OP_SETITEM:
+ $this->_loadSetItem();
+ break;
+ case self::OP_SETITEMS:
+ $this->_loadSetItems();
+ break;
+ case self::OP_TUPLE:
+ $this->_loadTuple();
+ break;
+ case self::OP_TUPLE1:
+ $this->_loadTuple1();
+ break;
+ case self::OP_TUPLE2:
+ $this->_loadTuple2();
+ break;
+ case self::OP_TUPLE3:
+ $this->_loadTuple3();
+ break;
+ case self::OP_PROTO:
+ $this->_loadProto();
+ break;
+ default:
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Invalid or unknown opcode "'.$op.'"');
+ }
+ }
+
+ /**
+ * Load a PUT opcode
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception on missing stack
+ */
+ protected function _loadPut()
+ {
+ $id = (int)$this->_readline();
+
+ $lastStack = count($this->_stack)-1;
+ if (!isset($this->_stack[$lastStack])) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('No stack exist');
+ }
+ $this->_memo[$id] = & $this->_stack[$lastStack];
+ }
+
+ /**
+ * Load a binary PUT
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception on missing stack
+ */
+ protected function _loadBinPut()
+ {
+ $id = ord($this->_read(1));
+
+ $lastStack = count($this->_stack)-1;
+ if (!isset($this->_stack[$lastStack])) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('No stack exist');
+ }
+ $this->_memo[$id] = & $this->_stack[$lastStack];
+ }
+
+ /**
+ * Load a long binary PUT
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception on missing stack
+ */
+ protected function _loadLongBinPut()
+ {
+ $bin = $this->_read(4);
+ if (self::$_isLittleEndian === false) {
+ $bin = strrev($bin);
+ }
+ list(, $id) = unpack('l', $bin);
+
+ $lastStack = count($this->_stack)-1;
+ if (!isset($this->_stack[$lastStack])) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('No stack exist');
+ }
+ $this->_memo[$id] = & $this->_stack[$lastStack];
+ }
+
+ /**
+ * Load a GET operation
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception on missing GET identifier
+ */
+ protected function _loadGet()
+ {
+ $id = (int)$this->_readline();
+
+ if (!array_key_exists($id, $this->_memo)) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Get id "' . $id . '" not found in momo');
+ }
+ $this->_stack[] = & $this->_memo[$id];
+ }
+
+ /**
+ * Load a binary GET operation
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception on missing GET identifier
+ */
+ protected function _loadBinGet()
+ {
+ $id = ord($this->_read(1));
+
+ if (!array_key_exists($id, $this->_memo)) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Get id "' . $id . '" not found in momo');
+ }
+ $this->_stack[] = & $this->_memo[$id];
+ }
+
+ /**
+ * Load a long binary GET operation
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception on missing GET identifier
+ */
+ protected function _loadLongBinGet()
+ {
+ $bin = $this->_read(4);
+ if (self::$_isLittleEndian === false) {
+ $bin = strrev($bin);
+ }
+ list(, $id) = unpack('l', $bin);
+
+ if (!array_key_exists($id, $this->_memo)) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Get id "' . $id . '" not found in momo');
+ }
+ $this->_stack[] = & $this->_memo[$id];
+ }
+
+ /**
+ * Load a NONE operator
+ *
+ * @return void
+ */
+ protected function _loadNone()
+ {
+ $this->_stack[] = null;
+ }
+
+ /**
+ * Load a boolean TRUE operator
+ *
+ * @return void
+ */
+ protected function _loadNewTrue()
+ {
+ $this->_stack[] = true;
+ }
+
+ /**
+ * Load a boolean FALSE operator
+ *
+ * @return void
+ */
+ protected function _loadNewFalse()
+ {
+ $this->_stack[] = false;
+ }
+
+ /**
+ * Load an integer operator
+ *
+ * @return void
+ */
+ protected function _loadInt()
+ {
+ $line = $this->_readline();
+ if ($line === '01') {
+ $this->_stack[] = true;
+ } elseif ($line === '00') {
+ $this->_stack[] = false;
+ } else {
+ $this->_stack[] = (int)$line;
+ }
+ }
+
+ /**
+ * Load a binary integer operator
+ *
+ * @return void
+ */
+ protected function _loadBinInt()
+ {
+ $bin = $this->_read(4);
+ if (self::$_isLittleEndian === false) {
+ $bin = strrev($bin);
+ }
+ list(, $int) = unpack('l', $bin);
+ $this->_stack[] = $int;
+ }
+
+ /**
+ * Load the first byte of a binary integer
+ *
+ * @return void
+ */
+ protected function _loadBinInt1()
+ {
+ $this->_stack[] = ord($this->_read(1));
+ }
+
+ /**
+ * Load the second byte of a binary integer
+ *
+ * @return void
+ */
+ protected function _loadBinInt2()
+ {
+ $bin = $this->_read(2);
+ list(, $int) = unpack('v', $bin);
+ $this->_stack[] = $int;
+ }
+
+ /**
+ * Load a long (float) operator
+ *
+ * @return void
+ */
+ protected function _loadLong()
+ {
+ $data = rtrim($this->_readline(), 'L');
+ if ($data === '') {
+ $this->_stack[] = 0;
+ } else {
+ $this->_stack[] = $data;
+ }
+ }
+
+ /**
+ * Load a one byte long integer
+ *
+ * @return void
+ */
+ protected function _loadLong1()
+ {
+ $n = ord($this->_read(1));
+ $data = $this->_read($n);
+ $this->_stack[] = $this->_decodeBinLong($data);
+ }
+
+ /**
+ * Load a 4 byte long integer
+ *
+ * @return void
+ */
+ protected function _loadLong4()
+ {
+ $nBin = $this->_read(4);
+ if (self::$_isLittleEndian === false) {
+ $nBin = strrev($$nBin);
+ }
+ list(, $n) = unpack('l', $nBin);
+ $data = $this->_read($n);
+
+ $this->_stack[] = $this->_decodeBinLong($data);
+ }
+
+ /**
+ * Load a float value
+ *
+ * @return void
+ */
+ protected function _loadFloat()
+ {
+ $float = (float)$this->_readline();
+ $this->_stack[] = $float;
+ }
+
+ /**
+ * Load a binary float value
+ *
+ * @return void
+ */
+ protected function _loadBinFloat()
+ {
+ $bin = $this->_read(8);
+ if (self::$_isLittleEndian === true) {
+ $bin = strrev($bin);
+ }
+ list(, $float) = unpack('d', $bin);
+ $this->_stack[] = $float;
+ }
+
+ /**
+ * Load a string
+ *
+ * @return void
+ */
+ protected function _loadString()
+ {
+ $this->_stack[] = $this->_unquoteString((string)$this->_readline());
+ }
+
+ /**
+ * Load a binary string
+ *
+ * @return void
+ */
+ protected function _loadBinString()
+ {
+ $bin = $this->_read(4);
+ if (!self::$_isLittleEndian) {
+ $bin = strrev($bin);
+ }
+ list(, $len) = unpack('l', $bin);
+ $this->_stack[] = (string)$this->_read($len);
+ }
+
+ /**
+ * Load a short binary string
+ *
+ * @return void
+ */
+ protected function _loadShortBinString()
+ {
+ $len = ord($this->_read(1));
+ $this->_stack[] = (string)$this->_read($len);
+ }
+
+ /**
+ * Load arbitrary binary bytes
+ *
+ * @return void
+ */
+ protected function _loadBinBytes()
+ {
+ // read byte length
+ $nBin = $this->_read(4);
+ if (self::$_isLittleEndian === false) {
+ $nBin = strrev($$nBin);
+ }
+ list(, $n) = unpack('l', $nBin);
+ $this->_stack[] = $this->_read($n);
+ }
+
+ /**
+ * Load a single binary byte
+ *
+ * @return void
+ */
+ protected function _loadShortBinBytes()
+ {
+ $n = ord($this->_read(1));
+ $this->_stack[] = $this->_read($n);
+ }
+
+ /**
+ * Load a unicode string
+ *
+ * @return void
+ */
+ protected function _loadUnicode()
+ {
+ $data = $this->_readline();
+ $pattern = '/\\\\u([a-fA-F0-9]{4})/u'; // \uXXXX
+ $data = preg_replace_callback($pattern, array($this, '_convertMatchingUnicodeSequence2Utf8'), $data);
+
+ if (self::$_isPhp6) {
+ $data = unicode_decode($data, 'UTF-8');
+ }
+
+ $this->_stack[] = $data;
+ }
+
+ /**
+ * Convert a unicode sequence to UTF-8
+ *
+ * @param array $match
+ * @return string
+ */
+ protected function _convertMatchingUnicodeSequence2Utf8(array $match)
+ {
+ return $this->_hex2Utf8($match[1]);
+ }
+
+ /**
+ * Convert a hex string to a UTF-8 string
+ *
+ * @param string $sequence
+ * @return string
+ * @throws Zend_Serializer_Exception on unmatched unicode sequence
+ */
+ protected function _hex2Utf8($hex)
+ {
+ $uniCode = hexdec($hex);
+
+ if ($uniCode < 0x80) { // 1Byte
+ $utf8Char = chr($uniCode);
+
+ } elseif ($uniCode < 0x800) { // 2Byte
+ $utf8Char = chr(0xC0 | $uniCode >> 6)
+ . chr(0x80 | $uniCode & 0x3F);
+
+ } elseif ($uniCode < 0x10000) { // 3Byte
+ $utf8Char = chr(0xE0 | $uniCode >> 12)
+ . chr(0x80 | $uniCode >> 6 & 0x3F)
+ . chr(0x80 | $uniCode & 0x3F);
+
+ } elseif ($uniCode < 0x110000) { // 4Byte
+ $utf8Char = chr(0xF0 | $uniCode >> 18)
+ . chr(0x80 | $uniCode >> 12 & 0x3F)
+ . chr(0x80 | $uniCode >> 6 & 0x3F)
+ . chr(0x80 | $uniCode & 0x3F);
+ } else {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Unsupported unicode character found "' . dechex($uniCode) . '"');
+ }
+
+ return $utf8Char;
+ }
+
+ /**
+ * Load binary unicode sequence
+ *
+ * @return void
+ */
+ protected function _loadBinUnicode()
+ {
+ // read byte length
+ $n = $this->_read(4);
+ if (self::$_isLittleEndian === false) {
+ $n = strrev($n);
+ }
+ list(, $n) = unpack('l', $n);
+ $data = $this->_read($n);
+
+ if (self::$_isPhp6) {
+ $data = unicode_decode($data, 'UTF-8');
+ }
+
+ $this->_stack[] = $data;
+ }
+
+ /**
+ * Load a marker sequence
+ *
+ * @return void
+ */
+ protected function _loadMark()
+ {
+ $this->_stack[] = $this->_marker;
+ }
+
+ /**
+ * Load an array (list)
+ *
+ * @return void
+ */
+ protected function _loadList()
+ {
+ $k = $this->_lastMarker();
+ $this->_stack[$k] = array();
+
+ // remove all elements after marker
+ $max = count($this->_stack);
+ for ($i = $k+1, $max; $i < $max; $i++) {
+ unset($this->_stack[$i]);
+ }
+ }
+
+ /**
+ * Load an append (to list) sequence
+ *
+ * @return void
+ */
+ protected function _loadAppend()
+ {
+ $value = array_pop($this->_stack);
+ $list =& $this->_stack[count($this->_stack)-1];
+ $list[] = $value;
+ }
+
+ /**
+ * Load an empty list sequence
+ *
+ * @return void
+ */
+ protected function _loadEmptyList()
+ {
+ $this->_stack[] = array();
+ }
+
+ /**
+ * Load multiple append (to list) sequences at once
+ *
+ * @return void
+ */
+ protected function _loadAppends()
+ {
+ $k = $this->_lastMarker();
+ $list =& $this->_stack[$k - 1];
+ $max = count($this->_stack);
+ for ($i = $k + 1; $i < $max; $i++) {
+ $list[] = $this->_stack[$i];
+ unset($this->_stack[$i]);
+ }
+ unset($this->_stack[$k]);
+ }
+
+ /**
+ * Load an associative array (Python dictionary)
+ *
+ * @return void
+ */
+ protected function _loadDict()
+ {
+ $k = $this->_lastMarker();
+ $this->_stack[$k] = array();
+
+ // remove all elements after marker
+ $max = count($this->_stack);
+ for($i = $k + 1; $i < $max; $i++) {
+ unset($this->_stack[$i]);
+ }
+ }
+
+ /**
+ * Load an item from a set
+ *
+ * @return void
+ */
+ protected function _loadSetItem()
+ {
+ $value = array_pop($this->_stack);
+ $key = array_pop($this->_stack);
+ $dict =& $this->_stack[count($this->_stack) - 1];
+ $dict[$key] = $value;
+ }
+
+ /**
+ * Load an empty dictionary
+ *
+ * @return void
+ */
+ protected function _loadEmptyDict()
+ {
+ $this->_stack[] = array();
+ }
+
+ /**
+ * Load set items
+ *
+ * @return void
+ */
+ protected function _loadSetItems()
+ {
+ $k = $this->_lastMarker();
+ $dict =& $this->_stack[$k - 1];
+ $max = count($this->_stack);
+ for ($i = $k + 1; $i < $max; $i += 2) {
+ $key = $this->_stack[$i];
+ $value = $this->_stack[$i + 1];
+ $dict[$key] = $value;
+ unset($this->_stack[$i], $this->_stack[$i+1]);
+ }
+ unset($this->_stack[$k]);
+ }
+
+ /**
+ * Load a tuple
+ *
+ * @return void
+ */
+ protected function _loadTuple()
+ {
+ $k = $this->_lastMarker();
+ $this->_stack[$k] = array();
+ $tuple =& $this->_stack[$k];
+ $max = count($this->_stack);
+ for($i = $k + 1; $i < $max; $i++) {
+ $tuple[] = $this->_stack[$i];
+ unset($this->_stack[$i]);
+ }
+ }
+
+ /**
+ * Load single item tuple
+ *
+ * @return void
+ */
+ protected function _loadTuple1()
+ {
+ $value1 = array_pop($this->_stack);
+ $this->_stack[] = array($value1);
+ }
+
+ /**
+ * Load two item tuple
+ *
+ * @return void
+ */
+ protected function _loadTuple2()
+ {
+ $value2 = array_pop($this->_stack);
+ $value1 = array_pop($this->_stack);
+ $this->_stack[] = array($value1, $value2);
+ }
+
+ /**
+ * Load three item tuple
+ *
+ * @return void
+ */
+ protected function _loadTuple3() {
+ $value3 = array_pop($this->_stack);
+ $value2 = array_pop($this->_stack);
+ $value1 = array_pop($this->_stack);
+ $this->_stack[] = array($value1, $value2, $value3);
+ }
+
+ /**
+ * Load a proto value
+ *
+ * @return void
+ * @throws Zend_Serializer_Exception if Pickle version does not support this feature
+ */
+ protected function _loadProto()
+ {
+ $proto = ord($this->_read(1));
+ if ($proto < 2 || $proto > 3) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('Invalid protocol version detected');
+ }
+ $this->_protocol = $proto;
+ }
+
+ /* unserialize helper */
+
+ /**
+ * Read a segment of the pickle
+ *
+ * @param mixed $len
+ * @return string
+ * @throws Zend_Serializer_Exception if position matches end of data
+ */
+ protected function _read($len)
+ {
+ if (($this->_pos + $len) > $this->_pickleLen) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('End of data');
+ }
+
+ $this->_pos+= $len;
+ return substr($this->_pickle, ($this->_pos - $len), $len);
+ }
+
+ /**
+ * Read a line of the pickle at once
+ *
+ * @return string
+ * @throws Zend_Serializer_Exception if no EOL character found
+ */
+ protected function _readline()
+ {
+ $eolLen = 2;
+ $eolPos = strpos($this->_pickle, "\r\n", $this->_pos);
+ if ($eolPos === false) {
+ $eolPos = strpos($this->_pickle, "\n", $this->_pos);
+ $eolLen = 1;
+ }
+
+ if ($eolPos === false) {
+ require_once 'Zend/Serializer/Exception.php';
+ throw new Zend_Serializer_Exception('No new line found');
+ }
+ $ret = substr($this->_pickle, $this->_pos, $eolPos-$this->_pos);
+ $this->_pos = $eolPos + $eolLen;
+
+ return $ret;
+ }
+
+ /**
+ * Unquote/Unescape a quoted string
+ *
+ * @param string $str quoted string
+ * @return string unquoted string
+ */
+ protected function _unquoteString($str)
+ {
+ $quoteArr = array_flip(self::$_quoteString);
+
+ if ($str[0] == '"') {
+ $quoteArr['\\"'] = '"';
+ } else {
+ $quoteArr["\\'"] = "'";
+ }
+
+ return strtr(substr(trim($str), 1, -1), $quoteArr);
+ }
+
+ /**
+ * Return last marker position in stack
+ *
+ * @return int
+ */
+ protected function _lastMarker()
+ {
+ for ($k = count($this->_stack)-1; $k >= 0; $k -= 1) {
+ if ($this->_stack[$k] === $this->_marker) {
+ break;
+ }
+ }
+ return $k;
+ }
+
+ /**
+ * Decode a binary long sequence
+ *
+ * @param string $data
+ * @return int|float|string
+ */
+ protected function _decodeBinLong($data)
+ {
+ $nbytes = strlen($data);
+
+ if ($nbytes == 0) {
+ return 0;
+ }
+
+ $long = 0;
+
+ if ($nbytes > 7) {
+ if (!extension_loaded('bcmath')) {
+ return INF;
+ }
+
+ for ($i=0; $i<$nbytes; $i++) {
+ $long = bcadd($long, bcmul(ord($data[$i]), bcpow(256, $i, 0)));
+ }
+ if (0x80 <= ord($data[$nbytes-1])) {
+ $long = bcsub($long, bcpow(2, $nbytes * 8));
+ }
+
+ } else {
+ for ($i=0; $i<$nbytes; $i++) {
+ $long+= ord($data[$i]) * pow(256, $i);
+ }
+ if (0x80 <= ord($data[$nbytes-1])) {
+ $long-= pow(2, $nbytes * 8);
+ // $long-= 1 << ($nbytes * 8);
+ }
+ }
+
+ return $long;
+ }
+}