| Total Complexity | 50 |
| Total Lines | 395 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like FilesReportPlugin often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use FilesReportPlugin, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 44 | class FilesReportPlugin extends ServerPlugin { |
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| 45 | |||
| 46 | // namespace |
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| 47 | const NS_OWNCLOUD = 'http://owncloud.org/ns'; |
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| 48 | const REPORT_NAME = '{http://owncloud.org/ns}filter-files'; |
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| 49 | const SYSTEMTAG_PROPERTYNAME = '{http://owncloud.org/ns}systemtag'; |
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| 50 | const CIRCLE_PROPERTYNAME = '{http://owncloud.org/ns}circle'; |
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| 51 | |||
| 52 | /** |
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| 53 | * Reference to main server object |
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| 54 | * |
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| 55 | * @var \Sabre\DAV\Server |
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| 56 | */ |
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| 57 | private $server; |
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| 58 | |||
| 59 | /** |
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| 60 | * @var Tree |
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| 61 | */ |
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| 62 | private $tree; |
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| 63 | |||
| 64 | /** |
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| 65 | * @var View |
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| 66 | */ |
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| 67 | private $fileView; |
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| 68 | |||
| 69 | /** |
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| 70 | * @var ISystemTagManager |
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| 71 | */ |
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| 72 | private $tagManager; |
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| 73 | |||
| 74 | /** |
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| 75 | * @var ISystemTagObjectMapper |
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| 76 | */ |
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| 77 | private $tagMapper; |
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| 78 | |||
| 79 | /** |
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| 80 | * Manager for private tags |
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| 81 | * |
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| 82 | * @var ITagManager |
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| 83 | */ |
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| 84 | private $fileTagger; |
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| 85 | |||
| 86 | /** |
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| 87 | * @var IUserSession |
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| 88 | */ |
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| 89 | private $userSession; |
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| 90 | |||
| 91 | /** |
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| 92 | * @var IGroupManager |
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| 93 | */ |
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| 94 | private $groupManager; |
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| 95 | |||
| 96 | /** |
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| 97 | * @var Folder |
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| 98 | */ |
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| 99 | private $userFolder; |
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| 100 | |||
| 101 | /** |
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| 102 | * @var IAppManager |
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| 103 | */ |
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| 104 | private $appManager; |
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| 105 | |||
| 106 | /** |
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| 107 | * @param Tree $tree |
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| 108 | * @param View $view |
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| 109 | * @param ISystemTagManager $tagManager |
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| 110 | * @param ISystemTagObjectMapper $tagMapper |
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| 111 | * @param ITagManager $fileTagger manager for private tags |
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| 112 | * @param IUserSession $userSession |
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| 113 | * @param IGroupManager $groupManager |
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| 114 | * @param Folder $userFolder |
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| 115 | * @param IAppManager $appManager |
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| 116 | */ |
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| 117 | public function __construct(Tree $tree, |
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| 118 | View $view, |
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| 119 | ISystemTagManager $tagManager, |
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| 120 | ISystemTagObjectMapper $tagMapper, |
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| 121 | ITagManager $fileTagger, |
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| 122 | IUserSession $userSession, |
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| 123 | IGroupManager $groupManager, |
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| 124 | Folder $userFolder, |
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| 125 | IAppManager $appManager |
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| 126 | ) { |
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| 127 | $this->tree = $tree; |
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| 128 | $this->fileView = $view; |
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| 129 | $this->tagManager = $tagManager; |
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| 130 | $this->tagMapper = $tagMapper; |
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| 131 | $this->fileTagger = $fileTagger; |
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| 132 | $this->userSession = $userSession; |
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| 133 | $this->groupManager = $groupManager; |
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| 134 | $this->userFolder = $userFolder; |
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| 135 | $this->appManager = $appManager; |
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| 136 | } |
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| 137 | |||
| 138 | /** |
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| 139 | * This initializes the plugin. |
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| 140 | * |
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| 141 | * This function is called by \Sabre\DAV\Server, after |
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| 142 | * addPlugin is called. |
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| 143 | * |
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| 144 | * This method should set up the required event subscriptions. |
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| 145 | * |
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| 146 | * @param \Sabre\DAV\Server $server |
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| 147 | * @return void |
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| 148 | */ |
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| 149 | public function initialize(\Sabre\DAV\Server $server) { |
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| 150 | |||
| 151 | $server->xml->namespaceMap[self::NS_OWNCLOUD] = 'oc'; |
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| 152 | |||
| 153 | $this->server = $server; |
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| 154 | $this->server->on('report', array($this, 'onReport')); |
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| 155 | } |
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| 156 | |||
| 157 | /** |
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| 158 | * Returns a list of reports this plugin supports. |
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| 159 | * |
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| 160 | * This will be used in the {DAV:}supported-report-set property. |
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| 161 | * |
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| 162 | * @param string $uri |
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| 163 | * @return array |
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| 164 | */ |
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| 165 | public function getSupportedReportSet($uri) { |
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| 166 | return [self::REPORT_NAME]; |
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| 167 | } |
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| 168 | |||
| 169 | /** |
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| 170 | * REPORT operations to look for files |
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| 171 | * |
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| 172 | * @param string $reportName |
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| 173 | * @param $report |
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| 174 | * @param string $uri |
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| 175 | * @return bool |
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| 176 | * @throws BadRequest |
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| 177 | * @throws PreconditionFailed |
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| 178 | * @internal param $ [] $report |
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| 179 | */ |
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| 180 | public function onReport($reportName, $report, $uri) { |
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| 181 | $reportTargetNode = $this->server->tree->getNodeForPath($uri); |
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| 182 | if (!$reportTargetNode instanceof Directory || $reportName !== self::REPORT_NAME) { |
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| 183 | return; |
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| 184 | } |
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| 185 | |||
| 186 | $ns = '{' . $this::NS_OWNCLOUD . '}'; |
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| 187 | $requestedProps = []; |
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| 188 | $filterRules = []; |
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| 189 | |||
| 190 | // parse report properties and gather filter info |
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| 191 | foreach ($report as $reportProps) { |
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| 192 | $name = $reportProps['name']; |
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| 193 | if ($name === $ns . 'filter-rules') { |
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| 194 | $filterRules = $reportProps['value']; |
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| 195 | } else if ($name === '{DAV:}prop') { |
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| 196 | // propfind properties |
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| 197 | foreach ($reportProps['value'] as $propVal) { |
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| 198 | $requestedProps[] = $propVal['name']; |
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| 199 | } |
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| 200 | } |
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| 201 | } |
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| 202 | |||
| 203 | if (empty($filterRules)) { |
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| 204 | // an empty filter would return all existing files which would be slow |
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| 205 | throw new BadRequest('Missing filter-rule block in request'); |
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| 206 | } |
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| 207 | |||
| 208 | // gather all file ids matching filter |
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| 209 | try { |
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| 210 | $resultFileIds = $this->processFilterRules($filterRules); |
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| 211 | } catch (TagNotFoundException $e) { |
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| 212 | throw new PreconditionFailed('Cannot filter by non-existing tag', 0, $e); |
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| 213 | } |
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| 214 | |||
| 215 | // find sabre nodes by file id, restricted to the root node path |
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| 216 | $results = $this->findNodesByFileIds($reportTargetNode, $resultFileIds); |
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| 217 | |||
| 218 | $filesUri = $this->getFilesBaseUri($uri, $reportTargetNode->getPath()); |
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| 219 | $responses = $this->prepareResponses($filesUri, $requestedProps, $results); |
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| 220 | |||
| 221 | $xml = $this->server->xml->write( |
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| 222 | '{DAV:}multistatus', |
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| 223 | new MultiStatus($responses) |
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| 224 | ); |
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| 225 | |||
| 226 | $this->server->httpResponse->setStatus(207); |
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| 227 | $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8'); |
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| 228 | $this->server->httpResponse->setBody($xml); |
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| 229 | |||
| 230 | return false; |
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| 231 | } |
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| 232 | |||
| 233 | /** |
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| 234 | * Returns the base uri of the files root by removing |
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| 235 | * the subpath from the URI |
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| 236 | * |
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| 237 | * @param string $uri URI from this request |
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| 238 | * @param string $subPath subpath to remove from the URI |
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| 239 | * |
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| 240 | * @return string files base uri |
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| 241 | */ |
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| 242 | private function getFilesBaseUri($uri, $subPath) { |
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| 243 | $uri = trim($uri, '/'); |
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| 244 | $subPath = trim($subPath, '/'); |
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| 245 | if (empty($subPath)) { |
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| 246 | $filesUri = $uri; |
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| 247 | } else { |
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| 248 | $filesUri = substr($uri, 0, strlen($uri) - strlen($subPath)); |
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| 249 | } |
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| 250 | $filesUri = trim($filesUri, '/'); |
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| 251 | if (empty($filesUri)) { |
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| 252 | return ''; |
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| 253 | } |
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| 254 | return '/' . $filesUri; |
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| 255 | } |
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| 256 | |||
| 257 | /** |
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| 258 | * Find file ids matching the given filter rules |
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| 259 | * |
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| 260 | * @param array $filterRules |
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| 261 | * @return array array of unique file id results |
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| 262 | * |
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| 263 | * @throws TagNotFoundException whenever a tag was not found |
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| 264 | */ |
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| 265 | protected function processFilterRules($filterRules) { |
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| 266 | $ns = '{' . $this::NS_OWNCLOUD . '}'; |
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| 267 | $resultFileIds = null; |
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| 268 | $systemTagIds = []; |
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| 269 | $circlesIds = []; |
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| 270 | $favoriteFilter = null; |
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| 271 | foreach ($filterRules as $filterRule) { |
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| 272 | if ($filterRule['name'] === $ns . 'systemtag') { |
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| 273 | $systemTagIds[] = $filterRule['value']; |
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| 274 | } |
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| 275 | if ($filterRule['name'] === self::CIRCLE_PROPERTYNAME) { |
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| 276 | $circlesIds[] = $filterRule['value']; |
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| 277 | } |
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| 278 | if ($filterRule['name'] === $ns . 'favorite') { |
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| 279 | $favoriteFilter = true; |
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| 280 | } |
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| 281 | |||
| 282 | } |
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| 283 | |||
| 284 | if ($favoriteFilter !== null) { |
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| 285 | $resultFileIds = $this->fileTagger->load('files')->getFavorites(); |
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| 286 | if (empty($resultFileIds)) { |
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| 287 | return []; |
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| 288 | } |
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| 289 | } |
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| 290 | |||
| 291 | if (!empty($systemTagIds)) { |
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| 292 | $fileIds = $this->getSystemTagFileIds($systemTagIds); |
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| 293 | if (empty($resultFileIds)) { |
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| 294 | $resultFileIds = $fileIds; |
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| 295 | } else { |
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| 296 | $resultFileIds = array_intersect($fileIds, $resultFileIds); |
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| 297 | } |
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| 298 | } |
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| 299 | |||
| 300 | if (!empty($circlesIds)) { |
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| 301 | $fileIds = $this->getCirclesFileIds($circlesIds); |
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| 302 | if (empty($resultFileIds)) { |
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| 303 | $resultFileIds = $fileIds; |
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| 304 | } else { |
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| 305 | $resultFileIds = array_intersect($fileIds, $resultFileIds); |
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| 306 | } |
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| 307 | } |
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| 308 | |||
| 309 | return $resultFileIds; |
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| 310 | } |
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| 311 | |||
| 312 | private function getSystemTagFileIds($systemTagIds) { |
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| 353 | } |
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| 354 | |||
| 355 | /** |
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| 356 | * @suppress PhanUndeclaredClassMethod |
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| 357 | * @param array $circlesIds |
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| 358 | * @return array |
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| 359 | */ |
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| 360 | private function getCirclesFileIds(array $circlesIds) { |
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| 365 | } |
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| 366 | |||
| 367 | |||
| 368 | /** |
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| 369 | * Prepare propfind response for the given nodes |
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| 370 | * |
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| 371 | * @param string $filesUri $filesUri URI leading to root of the files URI, |
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| 372 | * with a leading slash but no trailing slash |
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| 373 | * @param string[] $requestedProps requested properties |
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| 374 | * @param Node[] nodes nodes for which to fetch and prepare responses |
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| 375 | * @return Response[] |
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| 376 | */ |
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| 377 | public function prepareResponses($filesUri, $requestedProps, $nodes) { |
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| 399 | } |
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| 400 | |||
| 401 | /** |
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| 402 | * Find Sabre nodes by file ids |
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| 403 | * |
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| 404 | * @param Node $rootNode root node for search |
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| 405 | * @param array $fileIds file ids |
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| 406 | * @return Node[] array of Sabre nodes |
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| 407 | */ |
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| 408 | public function findNodesByFileIds($rootNode, $fileIds) { |
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| 428 | } |
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| 429 | |||
| 430 | /** |
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| 431 | * Returns whether the currently logged in user is an administrator |
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| 432 | */ |
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| 433 | private function isAdmin() { |
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| 439 | } |
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| 440 | } |
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| 441 |
This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.