1 | <?php |
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2 | |||
3 | /** |
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4 | * A parser for XML that uses SimpleXMLElement |
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5 | * |
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6 | * @package Elgg.Core |
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7 | * @subpackage XML |
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8 | * |
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9 | * @see \Elgg\Integration\ElggCoreRegressionBugsTest |
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10 | * @see \Elgg\Integration\ElggCorePluginsAPITest |
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11 | */ |
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12 | class ElggXMLElement implements Serializable { |
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13 | /** |
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14 | * @var SimpleXMLElement |
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15 | */ |
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16 | private $_element; |
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17 | |||
18 | /** |
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19 | * Creates an \ElggXMLParser from a string or existing SimpleXMLElement |
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20 | * |
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21 | * @param string|SimpleXMLElement $xml The XML to parse |
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22 | */ |
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23 | 244 | public function __construct($xml) { |
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24 | 244 | if ($xml instanceof SimpleXMLElement) { |
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25 | 244 | $this->_element = $xml; |
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26 | } else { |
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27 | // do not load entities |
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28 | 244 | $disable_load_entities = libxml_disable_entity_loader(true); |
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29 | |||
30 | 244 | $this->_element = new SimpleXMLElement($xml); |
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31 | |||
32 | 244 | libxml_disable_entity_loader($disable_load_entities); |
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33 | } |
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34 | 244 | } |
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35 | |||
36 | /** |
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37 | * @return string The name of the element |
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38 | */ |
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39 | 243 | public function getName() { |
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40 | 243 | return $this->_element->getName(); |
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41 | } |
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42 | |||
43 | /** |
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44 | * @return string[] The attributes |
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45 | */ |
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46 | 243 | public function getAttributes() { |
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47 | //include namespace declarations as attributes |
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48 | 243 | $xmlnsRaw = $this->_element->getNamespaces(); |
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49 | 243 | $xmlns = []; |
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50 | 243 | foreach ($xmlnsRaw as $key => $val) { |
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51 | 241 | $label = 'xmlns' . ($key ? ":$key" : $key); |
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52 | 241 | $xmlns[$label] = $val; |
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53 | } |
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54 | //get attributes and merge with namespaces |
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55 | 243 | $attrRaw = $this->_element->attributes(); |
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56 | 243 | $attr = []; |
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57 | 243 | foreach ($attrRaw as $key => $val) { |
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58 | 1 | $attr[$key] = $val; |
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59 | } |
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60 | 243 | $attr = array_merge((array) $xmlns, (array) $attr); |
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61 | 243 | $result = []; |
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62 | 243 | foreach ($attr as $key => $val) { |
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63 | 242 | $result[$key] = (string) $val; |
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64 | } |
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65 | |||
66 | 243 | return $result; |
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67 | } |
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68 | |||
69 | /** |
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70 | * @return string CData |
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71 | */ |
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72 | 244 | public function getContent() { |
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73 | 244 | return (string) $this->_element; |
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74 | } |
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75 | |||
76 | /** |
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77 | * @return \ElggXMLElement[] Child elements |
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78 | */ |
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79 | 244 | public function getChildren() { |
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80 | 244 | $children = $this->_element->children(); |
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81 | 244 | $result = []; |
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82 | 244 | foreach ($children as $val) { |
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83 | 244 | $result[] = new \ElggXMLElement($val); |
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84 | } |
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85 | |||
86 | 244 | return $result; |
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87 | } |
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88 | |||
89 | /** |
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90 | * Override -> |
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91 | * |
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92 | * @param string $name Property name |
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93 | * |
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94 | * @return mixed |
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95 | */ |
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96 | 242 | public function __get($name) { |
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97 | 242 | switch ($name) { |
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98 | case 'name': |
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99 | 242 | return $this->getName(); |
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100 | |||
101 | case 'attributes': |
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102 | 242 | return $this->getAttributes(); |
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103 | |||
104 | case 'content': |
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105 | 242 | return $this->getContent(); |
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106 | |||
107 | case 'children': |
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108 | 242 | return $this->getChildren(); |
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109 | } |
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110 | |||
111 | 1 | return null; |
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112 | } |
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113 | |||
114 | /** |
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115 | * Override isset |
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116 | * |
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117 | * @param string $name Property name |
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118 | * |
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119 | * @return boolean |
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120 | */ |
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121 | 242 | public function __isset($name) { |
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122 | 242 | switch ($name) { |
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123 | case 'name': |
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124 | 1 | return $this->getName() !== null; |
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125 | |||
126 | case 'attributes': |
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127 | 242 | return $this->getAttributes() !== null; |
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128 | |||
129 | case 'content': |
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130 | 1 | return $this->getContent() !== null; |
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131 | |||
132 | case 'children': |
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133 | 242 | return $this->getChildren() !== null; |
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134 | } |
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135 | |||
136 | 1 | return false; |
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137 | } |
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138 | |||
139 | /** |
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140 | * {@inheritdoc} |
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141 | */ |
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142 | public function serialize() { |
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143 | return serialize($this->getContent()); |
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144 | } |
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145 | |||
146 | /** |
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147 | * {@inheritdoc} |
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148 | */ |
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149 | public function unserialize($serialized) { |
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150 | $element = $this->unserialize($serialized); |
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151 | return new static($element); |
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152 | } |
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153 | } |
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154 |