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- <?php
- namespace PhpMyAdmin;
- use PhpMyAdmin\Core;
- use PhpMyAdmin\Message;
- use PhpMyAdmin\Util;
- use PhpMyAdmin\ZipExtension;
- class File
- {
-
- var $_name = null;
-
- var $_content = null;
-
- var $_error_message = null;
-
- var $_is_temp = false;
-
- var $_compression = null;
-
- var $_offset = 0;
-
- var $_chunk_size = 32768;
-
- var $_handle = null;
-
- var $_decompress = false;
-
- var $_charset = null;
-
- private $zipExtension;
-
- public function __construct($name = false)
- {
- if ($name && is_string($name)) {
- $this->setName($name);
- }
- if (extension_loaded('zip')) {
- $this->zipExtension = new ZipExtension();
- }
- }
-
- public function __destruct()
- {
- $this->cleanUp();
- }
-
- public function cleanUp()
- {
- if ($this->isTemp()) {
- return $this->delete();
- }
- return true;
- }
-
- public function delete()
- {
- return unlink($this->getName());
- }
-
- public function isTemp($is_temp = null)
- {
- if (null !== $is_temp) {
- $this->_is_temp = (bool) $is_temp;
- }
- return $this->_is_temp;
- }
-
- public function setName($name)
- {
- $this->_name = trim($name);
- }
-
- public function getRawContent()
- {
- if (null === $this->_content) {
- if ($this->isUploaded() && ! $this->checkUploadedFile()) {
- return false;
- }
- if (! $this->isReadable()) {
- return false;
- }
- if (function_exists('file_get_contents')) {
- $this->_content = file_get_contents($this->getName());
- } elseif ($size = filesize($this->getName())) {
- $handle = fopen($this->getName(), 'rb');
- $this->_content = fread($handle, $size);
- fclose($handle);
- }
- }
- return $this->_content;
- }
-
- public function getContent()
- {
- $result = $this->getRawContent();
- if ($result === false) {
- return false;
- }
- return '0x' . bin2hex($result);
- }
-
- public function isUploaded()
- {
- if (! is_string($this->getName())) {
- return false;
- } else {
- return is_uploaded_file($this->getName());
- }
- }
-
- public function getName()
- {
- return $this->_name;
- }
-
- public function setUploadedFile($name)
- {
- $this->setName($name);
- if (! $this->isUploaded()) {
- $this->setName(null);
- $this->_error_message = Message::error(__('File was not an uploaded file.'));
- return false;
- }
- return true;
- }
-
- public function setUploadedFromTblChangeRequest($key, $rownumber)
- {
- if (! isset($_FILES['fields_upload'])
- || empty($_FILES['fields_upload']['name']['multi_edit'][$rownumber][$key])
- ) {
- return false;
- }
- $file = File::fetchUploadedFromTblChangeRequestMultiple(
- $_FILES['fields_upload'],
- $rownumber,
- $key
- );
-
- switch ($file['error']) {
-
-
-
- case 0:
- return $this->setUploadedFile($file['tmp_name']);
- case 4:
- break;
- case 1:
- $this->_error_message = Message::error(__(
- 'The uploaded file exceeds the upload_max_filesize directive in '
- . 'php.ini.'
- ));
- break;
- case 2:
- $this->_error_message = Message::error(__(
- 'The uploaded file exceeds the MAX_FILE_SIZE directive that was '
- . 'specified in the HTML form.'
- ));
- break;
- case 3:
- $this->_error_message = Message::error(__(
- 'The uploaded file was only partially uploaded.'
- ));
- break;
- case 6:
- $this->_error_message = Message::error(__('Missing a temporary folder.'));
- break;
- case 7:
- $this->_error_message = Message::error(__('Failed to write file to disk.'));
- break;
- case 8:
- $this->_error_message = Message::error(__('File upload stopped by extension.'));
- break;
- default:
- $this->_error_message = Message::error(__('Unknown error in file upload.'));
- }
- return false;
- }
-
- public function fetchUploadedFromTblChangeRequestMultiple(
- array $file, $rownumber, $key
- ) {
- $new_file = array(
- 'name' => $file['name']['multi_edit'][$rownumber][$key],
- 'type' => $file['type']['multi_edit'][$rownumber][$key],
- 'size' => $file['size']['multi_edit'][$rownumber][$key],
- 'tmp_name' => $file['tmp_name']['multi_edit'][$rownumber][$key],
- 'error' => $file['error']['multi_edit'][$rownumber][$key],
- );
- return $new_file;
- }
-
- public function setSelectedFromTblChangeRequest($key, $rownumber = null)
- {
- if (! empty($_REQUEST['fields_uploadlocal']['multi_edit'][$rownumber][$key])
- && is_string($_REQUEST['fields_uploadlocal']['multi_edit'][$rownumber][$key])
- ) {
-
- return $this->setLocalSelectedFile(
- $_REQUEST['fields_uploadlocal']['multi_edit'][$rownumber][$key]
- );
- }
- return false;
- }
-
- public function getError()
- {
- return $this->_error_message;
- }
-
- public function isError()
- {
- return ! is_null($this->_error_message);
- }
-
- public function checkTblChangeForm($key, $rownumber)
- {
- if ($this->setUploadedFromTblChangeRequest($key, $rownumber)) {
-
- $this->_error_message = null;
- return true;
- } elseif ($this->setSelectedFromTblChangeRequest($key, $rownumber)) {
-
- $this->_error_message = null;
- return true;
- }
-
- return false;
- }
-
- public function setLocalSelectedFile($name)
- {
- if (empty($GLOBALS['cfg']['UploadDir'])) {
- return false;
- }
- $this->setName(
- Util::userDir($GLOBALS['cfg']['UploadDir']) . Core::securePath($name)
- );
- if (@is_link($this->getName())) {
- $this->_error_message = __('File is a symbolic link');
- $this->setName(null);
- return false;
- }
- if (! $this->isReadable()) {
- $this->_error_message = Message::error(__('File could not be read!'));
- $this->setName(null);
- return false;
- }
- return true;
- }
-
- public function isReadable()
- {
-
-
- return @is_readable($this->getName());
- }
-
- public function checkUploadedFile()
- {
- if ($this->isReadable()) {
- return true;
- }
- $tmp_subdir = $GLOBALS['PMA_Config']->getUploadTempDir();
- if (is_null($tmp_subdir)) {
-
- $this->_error_message = Message::error(__(
- 'Error moving the uploaded file, see [doc@faq1-11]FAQ 1.11[/doc].'
- ));
- return false;
- }
- $new_file_to_upload = tempnam(
- $tmp_subdir,
- basename($this->getName())
- );
-
-
- ob_start();
- $move_uploaded_file_result = move_uploaded_file(
- $this->getName(),
- $new_file_to_upload
- );
- ob_end_clean();
- if (! $move_uploaded_file_result) {
- $this->_error_message = Message::error(__('Error while moving uploaded file.'));
- return false;
- }
- $this->setName($new_file_to_upload);
- $this->isTemp(true);
- if (! $this->isReadable()) {
- $this->_error_message = Message::error(__('Cannot read uploaded file.'));
- return false;
- }
- return true;
- }
-
- protected function detectCompression()
- {
-
-
- ob_start();
- $file = fopen($this->getName(), 'rb');
- ob_end_clean();
- if (! $file) {
- $this->_error_message = Message::error(__('File could not be read!'));
- return false;
- }
- $this->_compression = Util::getCompressionMimeType($file);
- return $this->_compression;
- }
-
- public function setDecompressContent($decompress)
- {
- $this->_decompress = (bool) $decompress;
- }
-
- public function getHandle()
- {
- if (null === $this->_handle) {
- $this->open();
- }
- return $this->_handle;
- }
-
- public function setHandle($handle)
- {
- $this->_handle = $handle;
- }
-
- public function errorUnsupported()
- {
- $this->_error_message = Message::error(sprintf(
- __(
- 'You attempted to load file with unsupported compression (%s). '
- . 'Either support for it is not implemented or disabled by your '
- . 'configuration.'
- ),
- $this->getCompression()
- ));
- }
-
- public function open()
- {
- if (! $this->_decompress) {
- $this->_handle = @fopen($this->getName(), 'r');
- }
- switch ($this->getCompression()) {
- case false:
- return false;
- case 'application/bzip2':
- if ($GLOBALS['cfg']['BZipDump'] && function_exists('bzopen')) {
- $this->_handle = @bzopen($this->getName(), 'r');
- } else {
- $this->errorUnsupported();
- return false;
- }
- break;
- case 'application/gzip':
- if ($GLOBALS['cfg']['GZipDump'] && function_exists('gzopen')) {
- $this->_handle = @gzopen($this->getName(), 'r');
- } else {
- $this->errorUnsupported();
- return false;
- }
- break;
- case 'application/zip':
- if ($GLOBALS['cfg']['ZipDump'] && function_exists('zip_open')) {
- return $this->openZip();
- }
- $this->errorUnsupported();
- return false;
- case 'none':
- $this->_handle = @fopen($this->getName(), 'r');
- break;
- default:
- $this->errorUnsupported();
- return false;
- }
- return ($this->_handle !== false);
- }
-
- public function openZip($specific_entry = null)
- {
- $result = $this->zipExtension->getContents($this->getName(), $specific_entry);
- if (! empty($result['error'])) {
- $this->_error_message = Message::rawError($result['error']);
- return false;
- }
- $this->_content = $result['data'];
- $this->_offset = 0;
- return true;
- }
-
- public function eof()
- {
- if (! is_null($this->_handle)) {
- return feof($this->_handle);
- }
- return $this->_offset == strlen($this->_content);
- }
-
- public function close()
- {
- if (! is_null($this->_handle)) {
- fclose($this->_handle);
- $this->_handle = null;
- } else {
- $this->_content = '';
- $this->_offset = 0;
- }
- $this->cleanUp();
- }
-
- public function read($size)
- {
- switch ($this->_compression) {
- case 'application/bzip2':
- return bzread($this->_handle, $size);
- case 'application/gzip':
- return gzread($this->_handle, $size);
- case 'application/zip':
- $result = mb_strcut($this->_content, $this->_offset, $size);
- $this->_offset += strlen($result);
- return $result;
- case 'none':
- default:
- return fread($this->_handle, $size);
- }
- }
-
- public function getCharset()
- {
- return $this->_charset;
- }
-
- public function setCharset($charset)
- {
- $this->_charset = $charset;
- }
-
- public function getCompression()
- {
- if (null === $this->_compression) {
- return $this->detectCompression();
- }
- return $this->_compression;
- }
-
- public function getOffset()
- {
- return $this->_offset;
- }
-
- public function getChunkSize()
- {
- return $this->_chunk_size;
- }
-
- public function setChunkSize($chunk_size)
- {
- $this->_chunk_size = (int) $chunk_size;
- }
-
- public function getContentLength()
- {
- return strlen($this->_content);
- }
- }
|