1 | <?php |
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2 | |
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3 | namespace Sabre\DAV\FSExt; |
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4 | |
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5 | use Sabre\DAV; |
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6 | |
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7 | /** |
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8 | * Base node-class |
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9 | * |
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10 | * The node class implements the method used by both the File and the Directory classes |
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11 | * |
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12 | * @copyright Copyright (C) 2007-2013 Rooftop Solutions. All rights reserved. |
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13 | * @author Evert Pot (http://www.rooftopsolutions.nl/) |
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14 | * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License |
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15 | */ |
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16 | abstract class Node extends DAV\FS\Node implements DAV\IProperties { |
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17 | |
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18 | /** |
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19 | * Updates properties on this node, |
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20 | * |
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21 | * @param array $properties |
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22 | * @see Sabre\DAV\IProperties::updateProperties |
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23 | * @return bool|array |
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24 | */ |
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25 | public function updateProperties($properties) { |
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26 | |
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27 | $resourceData = $this->getResourceData(); |
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28 | |
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29 | foreach($properties as $propertyName=>$propertyValue) { |
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30 | |
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31 | // If it was null, we need to delete the property |
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32 | if (is_null($propertyValue)) { |
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33 | if (isset($resourceData['properties'][$propertyName])) { |
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34 | unset($resourceData['properties'][$propertyName]); |
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35 | } |
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36 | } else { |
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37 | $resourceData['properties'][$propertyName] = $propertyValue; |
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38 | } |
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39 | |
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40 | } |
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41 | |
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42 | $this->putResourceData($resourceData); |
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43 | return true; |
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44 | } |
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45 | |
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46 | /** |
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47 | * Returns a list of properties for this nodes.; |
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48 | * |
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49 | * The properties list is a list of propertynames the client requested, encoded as xmlnamespace#tagName, for example: http://www.example.org/namespace#author |
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50 | * If the array is empty, all properties should be returned |
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51 | * |
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52 | * @param array $properties |
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53 | * @return array |
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54 | */ |
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55 | function getProperties($properties) { |
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56 | |
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57 | $resourceData = $this->getResourceData(); |
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58 | |
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59 | // if the array was empty, we need to return everything |
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60 | if (!$properties) return $resourceData['properties']; |
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61 | |
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62 | $props = array(); |
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63 | foreach($properties as $property) { |
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64 | if (isset($resourceData['properties'][$property])) $props[$property] = $resourceData['properties'][$property]; |
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65 | } |
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66 | |
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67 | return $props; |
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68 | |
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69 | } |
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70 | |
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71 | /** |
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72 | * Returns the path to the resource file |
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73 | * |
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74 | * @return string |
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75 | */ |
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76 | protected function getResourceInfoPath() { |
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77 | |
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78 | list($parentDir) = DAV\URLUtil::splitPath($this->path); |
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79 | return $parentDir . '/.sabredav'; |
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80 | |
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81 | } |
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82 | |
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83 | /** |
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84 | * Returns all the stored resource information |
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85 | * |
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86 | * @return array |
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87 | */ |
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88 | protected function getResourceData() { |
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89 | |
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90 | $path = $this->getResourceInfoPath(); |
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91 | if (!file_exists($path)) return array('properties' => array()); |
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92 | |
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93 | // opening up the file, and creating a shared lock |
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94 | $handle = fopen($path,'r'); |
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95 | flock($handle,LOCK_SH); |
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96 | $data = ''; |
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97 | |
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98 | // Reading data until the eof |
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99 | while(!feof($handle)) { |
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100 | $data.=fread($handle,8192); |
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101 | } |
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102 | |
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103 | // We're all good |
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104 | fclose($handle); |
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105 | |
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106 | // Unserializing and checking if the resource file contains data for this file |
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107 | $data = unserialize($data); |
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108 | if (!isset($data[$this->getName()])) { |
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109 | return array('properties' => array()); |
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110 | } |
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111 | |
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112 | $data = $data[$this->getName()]; |
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113 | if (!isset($data['properties'])) $data['properties'] = array(); |
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114 | return $data; |
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115 | |
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116 | } |
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117 | |
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118 | /** |
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119 | * Updates the resource information |
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120 | * |
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121 | * @param array $newData |
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122 | * @return void |
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123 | */ |
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124 | protected function putResourceData(array $newData) { |
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125 | |
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126 | $path = $this->getResourceInfoPath(); |
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127 | |
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128 | // opening up the file, and creating a shared lock |
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129 | $handle = fopen($path,'a+'); |
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130 | flock($handle,LOCK_EX); |
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131 | $data = ''; |
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132 | |
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133 | rewind($handle); |
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134 | |
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135 | // Reading data until the eof |
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136 | while(!feof($handle)) { |
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137 | $data.=fread($handle,8192); |
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138 | } |
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139 | |
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140 | // Unserializing and checking if the resource file contains data for this file |
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141 | $data = unserialize($data); |
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142 | $data[$this->getName()] = $newData; |
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143 | ftruncate($handle,0); |
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144 | rewind($handle); |
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145 | |
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146 | fwrite($handle,serialize($data)); |
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147 | fclose($handle); |
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148 | |
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149 | } |
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150 | |
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151 | /** |
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152 | * Renames the node |
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153 | * |
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154 | * @param string $name The new name |
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155 | * @return void |
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156 | */ |
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157 | public function setName($name) { |
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158 | |
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159 | list($parentPath, ) = DAV\URLUtil::splitPath($this->path); |
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160 | list(, $newName) = DAV\URLUtil::splitPath($name); |
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161 | $newPath = $parentPath . '/' . $newName; |
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162 | |
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163 | // We're deleting the existing resourcedata, and recreating it |
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164 | // for the new path. |
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165 | $resourceData = $this->getResourceData(); |
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166 | $this->deleteResourceData(); |
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167 | |
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168 | rename($this->path,$newPath); |
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169 | $this->path = $newPath; |
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170 | $this->putResourceData($resourceData); |
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171 | |
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172 | |
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173 | } |
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174 | |
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175 | /** |
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176 | * @return bool |
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177 | */ |
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178 | public function deleteResourceData() { |
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179 | |
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180 | // When we're deleting this node, we also need to delete any resource information |
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181 | $path = $this->getResourceInfoPath(); |
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182 | if (!file_exists($path)) return true; |
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183 | |
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184 | // opening up the file, and creating a shared lock |
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185 | $handle = fopen($path,'a+'); |
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186 | flock($handle,LOCK_EX); |
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187 | $data = ''; |
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188 | |
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189 | rewind($handle); |
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190 | |
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191 | // Reading data until the eof |
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192 | while(!feof($handle)) { |
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193 | $data.=fread($handle,8192); |
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194 | } |
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195 | |
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196 | // Unserializing and checking if the resource file contains data for this file |
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197 | $data = unserialize($data); |
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198 | if (isset($data[$this->getName()])) unset($data[$this->getName()]); |
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199 | ftruncate($handle,0); |
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200 | rewind($handle); |
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201 | fwrite($handle,serialize($data)); |
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202 | fclose($handle); |
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203 | |
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204 | return true; |
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205 | } |
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206 | |
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207 | public function delete() { |
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208 | |
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209 | return $this->deleteResourceData(); |
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210 | |
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211 | } |
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212 | |
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213 | } |
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214 | |
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