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1 <?php |
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2 /** |
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3 * Zend Framework |
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4 * |
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5 * LICENSE |
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6 * |
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7 * This source file is subject to the new BSD license that is bundled |
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8 * with this package in the file LICENSE.txt. |
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9 * It is also available through the world-wide-web at this URL: |
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10 * http://framework.zend.com/license/new-bsd |
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11 * If you did not receive a copy of the license and are unable to |
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12 * obtain it through the world-wide-web, please send an email |
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13 * to license@zend.com so we can send you a copy immediately. |
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14 * |
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15 * @category Zend |
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16 * @package Zend_Serializer |
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17 * @subpackage Adapter |
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18 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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19 * @license http://framework.zend.com/license/new-bsd New BSD License |
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20 * @version $Id: Wddx.php 20574 2010-01-24 17:39:14Z mabe $ |
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21 */ |
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22 |
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23 /** @see Zend_Serializer_Adapter_AdapterAbstract */ |
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24 require_once 'Zend/Serializer/Adapter/AdapterAbstract.php'; |
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25 |
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26 /** |
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27 * @link http://www.infoloom.com/gcaconfs/WEB/chicago98/simeonov.HTM |
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28 * @link http://en.wikipedia.org/wiki/WDDX |
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29 * @category Zend |
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30 * @package Zend_Serializer |
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31 * @subpackage Adapter |
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32 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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33 * @license http://framework.zend.com/license/new-bsd New BSD License |
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34 */ |
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35 class Zend_Serializer_Adapter_Wddx extends Zend_Serializer_Adapter_AdapterAbstract |
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36 { |
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37 /** |
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38 * @var array Default options |
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39 */ |
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40 protected $_options = array( |
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41 'comment' => null, |
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42 ); |
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43 |
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44 /** |
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45 * Constructor |
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46 * |
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47 * @param array $opts |
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48 * @return void |
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49 * @throws Zend_Serializer_Exception if wddx extension not found |
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50 */ |
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51 public function __construct($opts = array()) |
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52 { |
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53 if (!extension_loaded('wddx')) { |
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54 require_once 'Zend/Serializer/Exception.php'; |
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55 throw new Zend_Serializer_Exception('PHP extension "wddx" is required for this adapter'); |
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56 } |
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57 |
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58 parent::__construct($opts); |
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59 } |
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60 |
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61 /** |
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62 * Serialize PHP to WDDX |
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63 * |
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64 * @param mixed $value |
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65 * @param array $opts |
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66 * @return string |
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67 * @throws Zend_Serializer_Exception on wddx error |
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68 */ |
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69 public function serialize($value, array $opts = array()) |
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70 { |
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71 $opts = $opts + $this->_options; |
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72 |
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73 if (isset($opts['comment']) && $opts['comment']) { |
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74 $wddx = wddx_serialize_value($value, (string)$opts['comment']); |
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75 } else { |
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76 $wddx = wddx_serialize_value($value); |
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77 } |
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78 |
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79 if ($wddx === false) { |
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80 $lastErr = error_get_last(); |
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81 require_once 'Zend/Serializer/Exception.php'; |
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82 throw new Zend_Serializer_Exception($lastErr['message']); |
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83 } |
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84 return $wddx; |
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85 } |
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86 |
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87 /** |
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88 * Unserialize from WDDX to PHP |
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89 * |
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90 * @param string $wddx |
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91 * @param array $opts |
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92 * @return mixed |
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93 * @throws Zend_Serializer_Exception on wddx error |
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94 */ |
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95 public function unserialize($wddx, array $opts = array()) |
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96 { |
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97 $ret = wddx_deserialize($wddx); |
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98 |
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99 if ($ret === null) { |
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100 // check if the returned NULL is valid |
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101 // or based on an invalid wddx string |
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102 try { |
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103 $simpleXml = new SimpleXMLElement($wddx); |
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104 if (isset($simpleXml->data[0]->null[0])) { |
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105 return null; // valid null |
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106 } |
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107 $errMsg = 'Can\'t unserialize wddx string'; |
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108 } catch (Exception $e) { |
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109 $errMsg = $e->getMessage(); |
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110 } |
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111 |
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112 require_once 'Zend/Serializer/Exception.php'; |
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113 throw new Zend_Serializer_Exception($errMsg); |
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114 } |
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115 |
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116 return $ret; |
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117 } |
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118 } |