1 | <?php |
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2 | /** |
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3 | * @copyright Copyright (c) 2016, ownCloud, Inc. |
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4 | * |
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5 | * @author Bjoern Schiessle <[email protected]> |
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6 | * @author Joas Schilling <[email protected]> |
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7 | * @author Lukas Reschke <[email protected]> |
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8 | * @author Morris Jobke <[email protected]> |
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9 | * @author Robin Appelman <[email protected]> |
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10 | * @author Roeland Jago Douma <[email protected]> |
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11 | * @author Thomas Müller <[email protected]> |
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12 | * @author Vincent Petry <[email protected]> |
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13 | * |
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14 | * @license AGPL-3.0 |
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15 | * |
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16 | * This code is free software: you can redistribute it and/or modify |
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17 | * it under the terms of the GNU Affero General Public License, version 3, |
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18 | * as published by the Free Software Foundation. |
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19 | * |
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20 | * This program is distributed in the hope that it will be useful, |
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21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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23 | * GNU Affero General Public License for more details. |
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24 | * |
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25 | * You should have received a copy of the GNU Affero General Public License, version 3, |
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26 | * along with this program. If not, see <http://www.gnu.org/licenses/> |
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27 | * |
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28 | */ |
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29 | namespace OCA\DAV\Connector\Sabre; |
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30 | |||
31 | use OC\Files\FileInfo; |
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32 | use OC\Files\Storage\FailedStorage; |
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33 | use OCA\DAV\Connector\Sabre\Exception\FileLocked; |
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34 | use OCA\DAV\Connector\Sabre\Exception\Forbidden; |
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35 | use OCA\DAV\Connector\Sabre\Exception\InvalidPath; |
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36 | use OCP\Files\ForbiddenException; |
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37 | use OCP\Files\StorageInvalidException; |
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38 | use OCP\Files\StorageNotAvailableException; |
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39 | use OCP\Lock\LockedException; |
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40 | |||
41 | class ObjectTree extends CachingTree { |
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42 | |||
43 | /** |
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44 | * @var \OC\Files\View |
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45 | */ |
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46 | protected $fileView; |
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47 | |||
48 | /** |
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49 | * @var \OCP\Files\Mount\IMountManager |
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50 | */ |
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51 | protected $mountManager; |
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52 | |||
53 | /** |
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54 | * Creates the object |
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55 | */ |
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56 | public function __construct() { |
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57 | } |
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58 | |||
59 | /** |
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60 | * @param \Sabre\DAV\INode $rootNode |
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61 | * @param \OC\Files\View $view |
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62 | * @param \OCP\Files\Mount\IMountManager $mountManager |
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63 | */ |
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64 | public function init(\Sabre\DAV\INode $rootNode, \OC\Files\View $view, \OCP\Files\Mount\IMountManager $mountManager) { |
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65 | $this->rootNode = $rootNode; |
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66 | $this->fileView = $view; |
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67 | $this->mountManager = $mountManager; |
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68 | } |
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69 | |||
70 | /** |
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71 | * If the given path is a chunked file name, converts it |
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72 | * to the real file name. Only applies if the OC-CHUNKED header |
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73 | * is present. |
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74 | * |
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75 | * @param string $path chunk file path to convert |
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76 | * |
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77 | * @return string path to real file |
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78 | */ |
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79 | private function resolveChunkFile($path) { |
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80 | if (isset($_SERVER['HTTP_OC_CHUNKED'])) { |
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81 | // resolve to real file name to find the proper node |
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82 | [$dir, $name] = \Sabre\Uri\split($path); |
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83 | if ($dir === '/' || $dir === '.') { |
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84 | $dir = ''; |
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85 | } |
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86 | |||
87 | $info = \OC_FileChunking::decodeName($name); |
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88 | // only replace path if it was really the chunked file |
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89 | if (isset($info['transferid'])) { |
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90 | // getNodePath is called for multiple nodes within a chunk |
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91 | // upload call |
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92 | $path = $dir . '/' . $info['name']; |
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93 | $path = ltrim($path, '/'); |
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94 | } |
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95 | } |
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96 | return $path; |
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97 | } |
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98 | |||
99 | /** |
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100 | * Returns the INode object for the requested path |
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101 | * |
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102 | * @param string $path |
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103 | * @return \Sabre\DAV\INode |
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104 | * @throws InvalidPath |
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105 | * @throws \Sabre\DAV\Exception\Locked |
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106 | * @throws \Sabre\DAV\Exception\NotFound |
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107 | * @throws \Sabre\DAV\Exception\ServiceUnavailable |
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108 | */ |
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109 | public function getNodeForPath($path) { |
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110 | if (!$this->fileView) { |
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111 | throw new \Sabre\DAV\Exception\ServiceUnavailable('filesystem not setup'); |
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112 | } |
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113 | |||
114 | $path = trim($path, '/'); |
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115 | |||
116 | if (isset($this->cache[$path])) { |
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117 | return $this->cache[$path]; |
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118 | } |
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119 | |||
120 | if ($path) { |
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121 | try { |
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122 | $this->fileView->verifyPath($path, basename($path)); |
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123 | } catch (\OCP\Files\InvalidPathException $ex) { |
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124 | throw new InvalidPath($ex->getMessage()); |
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125 | } |
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126 | } |
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127 | |||
128 | // Is it the root node? |
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129 | if (!strlen($path)) { |
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130 | return $this->rootNode; |
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131 | } |
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132 | |||
133 | if (pathinfo($path, PATHINFO_EXTENSION) === 'part') { |
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134 | // read from storage |
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135 | $absPath = $this->fileView->getAbsolutePath($path); |
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136 | $mount = $this->fileView->getMount($path); |
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137 | $storage = $mount->getStorage(); |
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138 | $internalPath = $mount->getInternalPath($absPath); |
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139 | if ($storage && $storage->file_exists($internalPath)) { |
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140 | /** |
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141 | * @var \OC\Files\Storage\Storage $storage |
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142 | */ |
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143 | // get data directly |
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144 | $data = $storage->getMetaData($internalPath); |
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145 | $info = new FileInfo($absPath, $storage, $internalPath, $data, $mount); |
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146 | } else { |
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147 | $info = null; |
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148 | } |
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149 | } else { |
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150 | // resolve chunk file name to real name, if applicable |
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151 | $path = $this->resolveChunkFile($path); |
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152 | |||
153 | // read from cache |
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154 | try { |
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155 | $info = $this->fileView->getFileInfo($path); |
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156 | |||
157 | if ($info instanceof \OCP\Files\FileInfo && $info->getStorage()->instanceOfStorage(FailedStorage::class)) { |
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158 | throw new StorageNotAvailableException(); |
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159 | } |
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160 | } catch (StorageNotAvailableException $e) { |
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161 | throw new \Sabre\DAV\Exception\ServiceUnavailable('Storage is temporarily not available', 0, $e); |
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162 | } catch (StorageInvalidException $e) { |
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163 | throw new \Sabre\DAV\Exception\NotFound('Storage ' . $path . ' is invalid'); |
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164 | } catch (LockedException $e) { |
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165 | throw new \Sabre\DAV\Exception\Locked(); |
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166 | } catch (ForbiddenException $e) { |
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167 | throw new \Sabre\DAV\Exception\Forbidden(); |
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168 | } |
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169 | } |
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170 | |||
171 | if (!$info) { |
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172 | throw new \Sabre\DAV\Exception\NotFound('File with name ' . $path . ' could not be located'); |
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173 | } |
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174 | |||
175 | if ($info->getType() === 'dir') { |
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176 | $node = new \OCA\DAV\Connector\Sabre\Directory($this->fileView, $info, $this); |
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177 | } else { |
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178 | $node = new \OCA\DAV\Connector\Sabre\File($this->fileView, $info); |
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179 | } |
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180 | |||
181 | $this->cache[$path] = $node; |
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182 | return $node; |
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183 | } |
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184 | |||
185 | /** |
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186 | * Copies a file or directory. |
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187 | * |
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188 | * This method must work recursively and delete the destination |
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189 | * if it exists |
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190 | * |
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191 | * @param string $sourcePath |
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192 | * @param string $destinationPath |
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193 | * @throws FileLocked |
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194 | * @throws Forbidden |
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195 | * @throws InvalidPath |
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196 | * @throws \Exception |
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197 | * @throws \Sabre\DAV\Exception\Forbidden |
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198 | * @throws \Sabre\DAV\Exception\Locked |
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199 | * @throws \Sabre\DAV\Exception\NotFound |
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200 | * @throws \Sabre\DAV\Exception\ServiceUnavailable |
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201 | * @return void |
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202 | */ |
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203 | public function copy($sourcePath, $destinationPath) { |
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204 | if (!$this->fileView) { |
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205 | throw new \Sabre\DAV\Exception\ServiceUnavailable('filesystem not setup'); |
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206 | } |
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207 | |||
208 | |||
209 | $info = $this->fileView->getFileInfo(dirname($destinationPath)); |
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210 | if ($this->fileView->file_exists($destinationPath)) { |
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211 | $destinationPermission = $info && $info->isUpdateable(); |
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212 | } else { |
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213 | $destinationPermission = $info && $info->isCreatable(); |
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214 | } |
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215 | if (!$destinationPermission) { |
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216 | throw new Forbidden('No permissions to copy object.'); |
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217 | } |
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218 | |||
219 | // this will trigger existence check |
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220 | $this->getNodeForPath($sourcePath); |
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221 | |||
222 | [$destinationDir, $destinationName] = \Sabre\Uri\split($destinationPath); |
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223 | try { |
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224 | $this->fileView->verifyPath($destinationDir, $destinationName); |
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225 | } catch (\OCP\Files\InvalidPathException $ex) { |
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226 | throw new InvalidPath($ex->getMessage()); |
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227 | } |
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228 | |||
229 | try { |
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230 | $this->fileView->copy($sourcePath, $destinationPath); |
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231 | } catch (StorageNotAvailableException $e) { |
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232 | throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage()); |
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233 | } catch (ForbiddenException $ex) { |
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234 | throw new Forbidden($ex->getMessage(), $ex->getRetry()); |
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235 | } catch (LockedException $e) { |
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236 | throw new FileLocked($e->getMessage(), $e->getCode(), $e); |
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237 | } |
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238 | |||
239 | [$destinationDir,] = \Sabre\Uri\split($destinationPath); |
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240 | $this->markDirty($destinationDir); |
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241 | } |
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242 | } |
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243 |
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.