RestoreFileHandlers
2 years ago
Tasks
2 years ago
AbstractTask.php
2 years ago
BackupTask.php
3 years ago
FileBackupTask.php
2 years ago
FileRestoreTask.php
2 years ago
RestoreTask.php
2 years ago
FileRestoreTask.php
259 lines
| 1 | <?php |
| 2 | |
| 3 | namespace WPStaging\Backup\Task; |
| 4 | |
| 5 | use WPStaging\Framework\Adapter\Directory; |
| 6 | use WPStaging\Framework\Filesystem\Filesystem; |
| 7 | use WPStaging\Framework\Filesystem\MissingFileException; |
| 8 | use WPStaging\Framework\Filesystem\PathIdentifier; |
| 9 | use WPStaging\Framework\Queue\FinishedQueueException; |
| 10 | use WPStaging\Framework\Queue\SeekableQueueInterface; |
| 11 | use WPStaging\Framework\Utils\Cache\Cache; |
| 12 | use WPStaging\Backup\Dto\StepsDto; |
| 13 | use WPStaging\Backup\Task\RestoreFileHandlers\RestoreFileProcessor; |
| 14 | use WPStaging\Framework\SiteInfo; |
| 15 | use WPStaging\Vendor\Psr\Log\LoggerInterface; |
| 16 | |
| 17 | /** |
| 18 | * Class FileRestoreTask |
| 19 | * |
| 20 | * This is an abstract class for the filesystem-based restore actions of restoring a site, |
| 21 | * such as plugins, themes, mu-plugins and uploads files. |
| 22 | * |
| 23 | * It's main philosophy is to control the individual queue of what needs to be processed |
| 24 | * from each of the concrete restores. It delegates actual processing of the queue to a separate class. |
| 25 | * |
| 26 | * @package WPStaging\Backup\Abstracts\Task |
| 27 | */ |
| 28 | abstract class FileRestoreTask extends RestoreTask |
| 29 | { |
| 30 | /** |
| 31 | * @var Filesystem |
| 32 | */ |
| 33 | protected $filesystem; |
| 34 | |
| 35 | /** |
| 36 | * @var Directory |
| 37 | */ |
| 38 | protected $directory; |
| 39 | |
| 40 | /** |
| 41 | * @var RestoreFileProcessor |
| 42 | */ |
| 43 | private $restoreFileProcessor; |
| 44 | |
| 45 | /** |
| 46 | * @var int |
| 47 | */ |
| 48 | protected $processedNow; |
| 49 | |
| 50 | /** |
| 51 | * @var PathIdentifier |
| 52 | */ |
| 53 | protected $pathIdentifier; |
| 54 | |
| 55 | /** |
| 56 | * @var bool |
| 57 | */ |
| 58 | protected $isSiteHostedOnWordPressCom = false; |
| 59 | |
| 60 | public function __construct( |
| 61 | LoggerInterface $logger, |
| 62 | Cache $cache, |
| 63 | StepsDto $stepsDto, |
| 64 | SeekableQueueInterface $taskQueue, |
| 65 | Filesystem $filesystem, |
| 66 | Directory $directory, |
| 67 | RestoreFileProcessor $restoreFileProcessor, |
| 68 | PathIdentifier $pathIdentifier, |
| 69 | SiteInfo $siteInfo |
| 70 | ) { |
| 71 | parent::__construct($logger, $cache, $stepsDto, $taskQueue); |
| 72 | $this->filesystem = $filesystem; |
| 73 | $this->directory = $directory; |
| 74 | $this->restoreFileProcessor = $restoreFileProcessor; |
| 75 | $this->pathIdentifier = $pathIdentifier; |
| 76 | $this->isSiteHostedOnWordPressCom = $siteInfo->isHostedOnWordPressCom(); |
| 77 | } |
| 78 | |
| 79 | public function prepareFileRestore() |
| 80 | { |
| 81 | if ($this->stepsDto->getTotal() === 0) { |
| 82 | $this->buildQueue(); |
| 83 | $this->taskQueue->seek(0); |
| 84 | |
| 85 | // Just an arbitrary number, when there are no more items in the Queue we call stepsDto->finish() |
| 86 | $this->stepsDto->setTotal(100); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * @return \WPStaging\Backup\Dto\TaskResponseDto |
| 92 | */ |
| 93 | public function execute() |
| 94 | { |
| 95 | try { |
| 96 | $this->checkMissingParts(); |
| 97 | } catch (MissingFileException $ex) { |
| 98 | $this->stepsDto->finish(); |
| 99 | $this->logger->warning(sprintf(esc_html__('%s Skipped!', 'wp-staging'), static::getTaskTitle())); |
| 100 | return $this->generateResponse(false); |
| 101 | } |
| 102 | |
| 103 | $this->prepareFileRestore(); |
| 104 | |
| 105 | try { |
| 106 | while (!$this->isThreshold()) { |
| 107 | $this->processNextItemInQueue(); |
| 108 | $this->processedNow++; |
| 109 | } |
| 110 | } catch (FinishedQueueException $e) { |
| 111 | $this->stepsDto->finish(); |
| 112 | } |
| 113 | |
| 114 | $this->logger->info(sprintf(esc_html__('%s (processed %d items)', 'wp-staging'), static::getTaskTitle(), (int)$this->processedNow)); |
| 115 | |
| 116 | return $this->generateResponse(false); |
| 117 | } |
| 118 | |
| 119 | protected function getOriginalSuffix() |
| 120 | { |
| 121 | return '_wpstg_tmp'; |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * Concrete classes of the FileRestoreTask must build |
| 126 | * the queue once, enqueuing everything that needs |
| 127 | * to be moved or deleted, using $this->enqueueMove |
| 128 | * or $this->enqueueDelete. |
| 129 | * |
| 130 | * @return void |
| 131 | */ |
| 132 | abstract protected function buildQueue(); |
| 133 | |
| 134 | /** |
| 135 | * Skip the task if part is missing for this task |
| 136 | * |
| 137 | * @return array |
| 138 | */ |
| 139 | abstract protected function getParts(); |
| 140 | |
| 141 | /** |
| 142 | * Skip the task if part is missing for this task |
| 143 | * |
| 144 | * @throws MissingFileException |
| 145 | */ |
| 146 | protected function checkMissingParts() |
| 147 | { |
| 148 | if (!$this->jobDataDto->getBackupMetadata()->getIsMultipartBackup()) { |
| 149 | return; |
| 150 | } |
| 151 | |
| 152 | $parts = $this->getParts(); |
| 153 | |
| 154 | $backupDir = $this->directory->getBackupDirectory(); |
| 155 | |
| 156 | foreach ($parts as $part) { |
| 157 | $filepath = $backupDir . $part; |
| 158 | if (!file_exists($filepath)) { |
| 159 | throw new MissingFileException(); |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Executes the next item in the queue. |
| 166 | */ |
| 167 | protected function processNextItemInQueue() |
| 168 | { |
| 169 | $nextInQueueRaw = $this->taskQueue->dequeue(); |
| 170 | |
| 171 | if (is_null($nextInQueueRaw)) { |
| 172 | throw new FinishedQueueException(); |
| 173 | } |
| 174 | |
| 175 | // Skip blank lines |
| 176 | if ($nextInQueueRaw === '') { |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | $nextInQueue = json_decode($nextInQueueRaw, true); |
| 181 | |
| 182 | // Make sure we read expected data from the queue |
| 183 | if (!is_array($nextInQueue)) { |
| 184 | $this->logger->warning(sprintf( |
| 185 | __('%s: An internal error occurred that prevented this item from being restored. Skipping it... (Error Code: INVALID_QUEUE_ITEM)', 'wp-staging'), |
| 186 | static::getTaskTitle() |
| 187 | )); |
| 188 | $this->logger->debug($nextInQueueRaw); |
| 189 | |
| 190 | return; |
| 191 | } |
| 192 | |
| 193 | // Make sure data is in the expected format |
| 194 | array_map(function ($requiredKey) use ($nextInQueue, $nextInQueueRaw) { |
| 195 | if (!array_key_exists($requiredKey, $nextInQueue)) { |
| 196 | $this->logger->warning(sprintf( |
| 197 | __('%s: An internal error occurred that prevented this item from being restored. Skipping it... (Error Code: INVALID_QUEUE_ITEM)', 'wp-staging'), |
| 198 | static::getTaskTitle() |
| 199 | )); |
| 200 | $this->logger->debug($nextInQueueRaw); |
| 201 | |
| 202 | return; |
| 203 | } |
| 204 | }, ['action', 'source', 'destination']); |
| 205 | |
| 206 | $source = $nextInQueue['source']; |
| 207 | |
| 208 | // Make sure destination is within WordPress |
| 209 | // @todo Test backup in Windows and restoring in Linux and vice-versa |
| 210 | $destination = $nextInQueue['destination']; |
| 211 | $destination = wp_normalize_path($destination); |
| 212 | |
| 213 | // Executes the action |
| 214 | $this->restoreFileProcessor->handle($nextInQueue['action'], $source, $destination, $this, $this->logger); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * @param string $source Source path to move. |
| 219 | * @param string $destination Where to move source to. |
| 220 | */ |
| 221 | public function enqueueMove($source, $destination) |
| 222 | { |
| 223 | $this->enqueue([ |
| 224 | 'action' => 'move', |
| 225 | 'source' => wp_normalize_path($source), |
| 226 | 'destination' => wp_normalize_path($destination), |
| 227 | ]); |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * @param string $path The path to delete. Can be a folder, which will be deleted recursively. |
| 232 | */ |
| 233 | public function enqueueDelete($path) |
| 234 | { |
| 235 | $this->enqueue([ |
| 236 | 'action' => 'delete', |
| 237 | 'source' => '', |
| 238 | 'destination' => wp_normalize_path($path), |
| 239 | ]); |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * Use to retry last action in next request, |
| 244 | * if it wasn't completed in current request. |
| 245 | */ |
| 246 | public function retryLastActionInNextRequest() |
| 247 | { |
| 248 | $this->taskQueue->retry($dequeue = false); |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * @param array $action An array of actions to perform. |
| 253 | */ |
| 254 | private function enqueue($action) |
| 255 | { |
| 256 | $this->taskQueue->enqueue(json_encode($action)); |
| 257 | } |
| 258 | } |
| 259 |