.htaccess
9 months ago
DirIterator.php
9 months ago
DirIteratorExcludes.php
9 months ago
DirIteratorFile.php
9 months ago
index.html
9 months ago
web.config
9 months ago
DirIterator.php
309 lines
| 1 | <?php |
| 2 | |
| 3 | namespace JetBackup\DirIterator; |
| 4 | |
| 5 | use JetBackup\Destination\Integration\DestinationDirIterator; |
| 6 | use JetBackup\Destination\Integration\DestinationFile; |
| 7 | use JetBackup\Entities\Util; |
| 8 | use JetBackup\Exception\DirIteratorException; |
| 9 | use JetBackup\Exception\DirIteratorFileVanishedException; |
| 10 | use JetBackup\Filesystem\File; |
| 11 | use JetBackup\JetBackup; |
| 12 | use JetBackup\Log\LogController; |
| 13 | use JetBackup\Wordpress\Wordpress; |
| 14 | |
| 15 | |
| 16 | if (!defined( '__JETBACKUP__')) die('Direct access is not allowed'); |
| 17 | |
| 18 | class DirIterator implements DestinationDirIterator { |
| 19 | |
| 20 | const POSITION_EOL_STRING = "{eol:%s}"; |
| 21 | const POSITION_EOL_REGEX = "\{eol:([r|n]{1})\}"; |
| 22 | const POSITION_ARCHIVE_STRING = "{pos:%d}"; |
| 23 | const POSITION_ARCHIVE_REGEX = "\{pos:([\d]+)\}$"; |
| 24 | |
| 25 | const PHP_EXIT = "<?php exit; ?>"; |
| 26 | private $_source; |
| 27 | private $_exclude; |
| 28 | private LogController $_logController; |
| 29 | |
| 30 | private $_tree_filename; |
| 31 | private $_tree_filesize; |
| 32 | private $_tree_fd; |
| 33 | private $_tree_fd_position; |
| 34 | private $_current_file; |
| 35 | private $_current_file_length; |
| 36 | private $_prev_file_length; |
| 37 | private $_total_file; |
| 38 | private $_callback; |
| 39 | /** |
| 40 | * @throws DirIteratorException |
| 41 | */ |
| 42 | public function __construct($tree_filename) { |
| 43 | if(!$tree_filename) throw new DirIteratorException("No tree file was provided"); |
| 44 | $this->_tree_filename = $tree_filename; |
| 45 | $this->_tree_fd_position = 0; |
| 46 | $this->_current_file_length = 0; |
| 47 | $this->_prev_file_length = 0; |
| 48 | $this->_total_file = 0; |
| 49 | $this->_exclude = []; |
| 50 | $this->_logController = new LogController(); |
| 51 | } |
| 52 | |
| 53 | public function setCallBack(callable $callback): void { |
| 54 | $this->_callback = $callback; |
| 55 | } |
| 56 | |
| 57 | public function setSource($source) { $this->_source = $source; } |
| 58 | public function getSource() { return $this->_source; } |
| 59 | |
| 60 | /** |
| 61 | * @param LogController $logController |
| 62 | * |
| 63 | * @return void |
| 64 | */ |
| 65 | public function setLogController(LogController $logController) { $this->_logController = $logController; } |
| 66 | |
| 67 | /** |
| 68 | * @return LogController |
| 69 | */ |
| 70 | public function getLogController():LogController { return $this->_logController; } |
| 71 | |
| 72 | /** |
| 73 | * Should always create new tree, tree file should not be present at this point |
| 74 | * @throws DirIteratorException |
| 75 | */ |
| 76 | public function getTotalFiles(): int { |
| 77 | $this->_buildTree(); |
| 78 | return $this->_total_file; |
| 79 | } |
| 80 | |
| 81 | public function setExcludes($excludes) { $this->_exclude = $excludes; } |
| 82 | public function getExcludes(): array {return $this->_exclude;} |
| 83 | |
| 84 | /** |
| 85 | * @throws DirIteratorException |
| 86 | */ |
| 87 | public function hasNext(): bool { |
| 88 | $this->_current_file = $this->_calculateNextFile(); |
| 89 | return !!$this->_current_file; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * @param $archive_position |
| 94 | * |
| 95 | * @return DirIteratorFile |
| 96 | * @throws DirIteratorException |
| 97 | * @throws DirIteratorFileVanishedException |
| 98 | */ |
| 99 | public function next($archive_position): DirIteratorFile { |
| 100 | $this->_tree_fd_position += $this->_prev_file_length; |
| 101 | $this->_prev_file_length = $this->_current_file_length; |
| 102 | $this->save($archive_position); |
| 103 | return new DirIteratorFile($this->_current_file); |
| 104 | |
| 105 | } |
| 106 | |
| 107 | |
| 108 | /** |
| 109 | * @throws DirIteratorException |
| 110 | */ |
| 111 | private function _calculateNextFile(): ?string { |
| 112 | $this->getLogController()->logDebug("[DirIterator] [_calculateNextFile]"); |
| 113 | $this->_buildTree(); |
| 114 | if(!$this->_tree_fd) $this->_tree_fd = fopen($this->_tree_filename, 'a+'); |
| 115 | if(!$this->_tree_filesize) $this->_tree_filesize = DirIteratorFile::safe_filesize($this->_tree_filename); |
| 116 | |
| 117 | $delimiter_length = strlen(PHP_EOL); |
| 118 | $this->_current_file_length = $delimiter_length + 1; |
| 119 | $currentLine = ''; |
| 120 | |
| 121 | while (-1 !== fseek($this->_tree_fd, -($this->_current_file_length + $this->_prev_file_length + $this->_tree_fd_position), SEEK_END)) { |
| 122 | $char = fgetc($this->_tree_fd); |
| 123 | $currentLine = $char . $currentLine; |
| 124 | $this->_current_file_length++; |
| 125 | |
| 126 | if(substr($currentLine, 0, $delimiter_length) == PHP_EOL) { |
| 127 | $currentLine = substr($currentLine, $delimiter_length); |
| 128 | $this->_current_file_length -= $delimiter_length; |
| 129 | break; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | if($currentLine) { |
| 134 | $this->_current_file_length--; |
| 135 | if (substr($currentLine, 0, strlen(self::PHP_EXIT)) == self::PHP_EXIT) return null; |
| 136 | return $currentLine; |
| 137 | } |
| 138 | |
| 139 | return null; |
| 140 | } |
| 141 | |
| 142 | public function save($archive_position) { |
| 143 | if(!file_exists($this->_tree_filename)) return; |
| 144 | |
| 145 | $eol_size = strlen(PHP_EOL); |
| 146 | $new_size = $this->_tree_filesize - $this->_tree_fd_position; |
| 147 | |
| 148 | if($this->_current_file && !preg_match("/" . self::POSITION_ARCHIVE_REGEX . "/", $this->_current_file)) { |
| 149 | $pos = sprintf(self::POSITION_ARCHIVE_STRING, $archive_position); |
| 150 | $this->_current_file .= $pos; |
| 151 | |
| 152 | ftruncate($this->_tree_fd, $new_size-$this->_current_file_length); |
| 153 | fseek($this->_tree_fd, $new_size-$this->_current_file_length); |
| 154 | fwrite($this->_tree_fd, $this->_current_file); |
| 155 | |
| 156 | $this->_current_file_length += strlen($pos); |
| 157 | $this->_prev_file_length = $this->_current_file_length; |
| 158 | $new_size += strlen($pos); |
| 159 | } |
| 160 | |
| 161 | $new_size -= $eol_size; |
| 162 | |
| 163 | ftruncate($this->_tree_fd, $new_size); |
| 164 | fseek($this->_tree_fd, $new_size); |
| 165 | fwrite($this->_tree_fd, PHP_EOL); |
| 166 | $new_size += $eol_size; |
| 167 | |
| 168 | $this->_tree_filesize = $new_size; |
| 169 | $this->_tree_fd_position = 0; |
| 170 | } |
| 171 | |
| 172 | public function isBuildDone() { |
| 173 | if( |
| 174 | !file_exists($this->_tree_filename) || |
| 175 | filesize($this->_tree_filename) == 0 |
| 176 | ) return false; |
| 177 | |
| 178 | $file = fopen($this->_tree_filename, "r"); |
| 179 | fseek($file, strlen(self::PHP_EXIT)); |
| 180 | $status = fread($file, 1); |
| 181 | fclose($file); |
| 182 | return $status == '1'; |
| 183 | } |
| 184 | |
| 185 | private function _countFiles():int { |
| 186 | if(!file_exists($this->_tree_filename)) return 0; |
| 187 | if(filesize($this->_tree_filename) == 0) return 0; |
| 188 | $file = fopen($this->_tree_filename, "r"); |
| 189 | $total = 0; |
| 190 | while (fgets($file) !== false) $total++; |
| 191 | fclose($file); |
| 192 | // Remove the first line from counting |
| 193 | return $total-1; |
| 194 | } |
| 195 | |
| 196 | private function _buildTree() { |
| 197 | |
| 198 | if($this->isBuildDone()) return; |
| 199 | |
| 200 | $this->getLogController()->logDebug("[DirIterator] [_buildTree]"); |
| 201 | $this->getLogController()->logDebug("\t[_buildTree] Tree File name: " . $this->_tree_filename); |
| 202 | |
| 203 | |
| 204 | if(!$this->getSource()) throw new DirIteratorException("No source was provided"); |
| 205 | $source = new File($this->getSource()); |
| 206 | |
| 207 | if(!$source->exists()) throw new DirIteratorException("The provided source not exists"); |
| 208 | if(!$source->isDir() || $source->isLink()) throw new DirIteratorException("The provided source isn't directory"); |
| 209 | |
| 210 | $completed = $this->_countFiles(); |
| 211 | |
| 212 | $old_umask = umask(0177); |
| 213 | if(!file_exists($this->_tree_filename)) file_put_contents($this->_tree_filename, self::PHP_EXIT."0".PHP_EOL); |
| 214 | umask($old_umask); // Reset to previous umask value |
| 215 | |
| 216 | $this->_tree_fd = fopen($this->_tree_filename, 'r+'); |
| 217 | fseek($this->_tree_fd, 0, SEEK_END); |
| 218 | |
| 219 | $queue = [dir($source->path())]; |
| 220 | |
| 221 | while($queue) { |
| 222 | |
| 223 | $dir = array_pop($queue); |
| 224 | $dir_path = $dir->path; |
| 225 | |
| 226 | while(($entry = $dir->read()) !== false) { |
| 227 | if($entry == '.' || $entry == '..') continue; |
| 228 | |
| 229 | $file = new File($dir_path . JetBackup::SEP . $entry); |
| 230 | |
| 231 | if (!$file->isReadable()) { |
| 232 | $this->getLogController()->logError("The file {$file->path()} is not readable, Skipping"); |
| 233 | if ($this->_callback) call_user_func($this->_callback, 'error', $file->path(), $this->_total_file); |
| 234 | continue; |
| 235 | } |
| 236 | |
| 237 | // check if this entry is excluded |
| 238 | $clean_path = JetBackup::SEP . trim(substr($file->path(), strlen($this->getSource())), JetBackup::SEP); |
| 239 | $clean_path = str_replace('\\', '/', $clean_path); |
| 240 | foreach($this->getExcludes() as $exclude) { |
| 241 | // fnmatch() would fail to match paths correctly because Windows uses backslashes |
| 242 | $exclude = Util::normalizePath($exclude); |
| 243 | //$this->getLogController()->logDebug("\t[_buildTree] analyzing exclude: [$exclude] - [$clean_path] "); |
| 244 | if(fnmatch($exclude, $clean_path, FNM_CASEFOLD) || ($file->isDir() && fnmatch($exclude, $clean_path . JetBackup::SEP, FNM_CASEFOLD))) { |
| 245 | $this->getLogController()->logDebug("\t[_buildTree] Exclude HIT: '$exclude' for '$clean_path'"); |
| 246 | continue 2; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | // Handle wp-content: If using an alternate content dir, treat it as regular 'wp-content' |
| 251 | $alternateWpContent = Wordpress::getAlternateContentDir() && basename(Wordpress::getAlternateContentDir()) == basename($file->path()) && $file->isLink(); |
| 252 | |
| 253 | // Add regular directories (not symlinks) to the queue for further traversal. |
| 254 | $realDir = $file->isDir() && !$file->isLink(); |
| 255 | |
| 256 | if ($alternateWpContent || $realDir) { |
| 257 | $queue[] = $dir; |
| 258 | $queue[] = dir( $file->path() ); |
| 259 | continue 2; |
| 260 | } else { |
| 261 | $this->_total_file++; |
| 262 | if($this->_total_file <= $completed) continue; |
| 263 | $filename = self::_escapeEOL($file->path()); |
| 264 | fwrite($this->_tree_fd, $filename . PHP_EOL); |
| 265 | if ($this->_callback) call_user_func($this->_callback, 'file', $filename, $this->_total_file); |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | $this->_total_file++; |
| 270 | if($this->_total_file <= $completed) continue; |
| 271 | $filename = self::_escapeEOL($dir_path); |
| 272 | fwrite($this->_tree_fd, $filename . PHP_EOL); |
| 273 | if ($this->_callback) call_user_func($this->_callback, 'dir', $filename, $this->_total_file); |
| 274 | |
| 275 | $dir->close(); |
| 276 | } |
| 277 | $this->getLogController()->logDebug("\t[_buildTree] Total files in tree: " . $this->_total_file); |
| 278 | |
| 279 | fseek($this->_tree_fd, strlen(self::PHP_EXIT)); |
| 280 | fwrite($this->_tree_fd, '1'); |
| 281 | fseek($this->_tree_fd, 0, SEEK_END); |
| 282 | |
| 283 | //copy ($this->_tree_filename, $this->_tree_filename.'_original.php'); |
| 284 | //chmod($this->_tree_filename.'_original.php', 0600); |
| 285 | } |
| 286 | |
| 287 | private static function _escapeEOL($string):string { |
| 288 | return trim(str_replace(["\r","\n"], [sprintf(self::POSITION_EOL_STRING, "r"), sprintf(self::POSITION_EOL_STRING, "n")], $string)); |
| 289 | } |
| 290 | |
| 291 | public function __destruct() { |
| 292 | //$this->save(); |
| 293 | if($this->_tree_fd) fclose($this->_tree_fd); |
| 294 | } |
| 295 | |
| 296 | public function done() { |
| 297 | if(file_exists($this->_tree_filename)) unlink($this->_tree_filename); |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * @inheritDoc |
| 302 | */ |
| 303 | public function rewind():void {} |
| 304 | |
| 305 | /** |
| 306 | * @inheritDoc |
| 307 | */ |
| 308 | public function getNext(): ?DestinationFile { return null; } |
| 309 | } |