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Chris Sewell
177
html/phpmyad/libraries/zip_extension.lib.php
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177
html/phpmyad/libraries/zip_extension.lib.php
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<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Interface for the zip extension
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* @package phpMyAdmin
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*/
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/**
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* Gets zip file contents
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*
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* @param string $file zip file
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* @param string $specific_entry regular expression to match a file
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*
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* @return array ($error_message, $file_data); $error_message
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* is empty if no error
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*/
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function PMA_getZipContents($file, $specific_entry = null)
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{
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$error_message = '';
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$file_data = '';
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$zip_handle = zip_open($file);
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if (is_resource($zip_handle)) {
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$first_zip_entry = zip_read($zip_handle);
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if (false === $first_zip_entry) {
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$error_message = __('No files found inside ZIP archive!');
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} else {
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/* Is the the zip really an ODS file? */
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$read = zip_entry_read($first_zip_entry);
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$ods_mime = 'application/vnd.oasis.opendocument.spreadsheet';
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if (!strcmp($ods_mime, $read)) {
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$specific_entry = '/^content\.xml$/';
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}
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if (isset($specific_entry)) {
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/* Return the correct contents, not just the first entry */
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for ( ; ; ) {
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$entry = zip_read($zip_handle);
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if (is_resource($entry)) {
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if (preg_match($specific_entry, zip_entry_name($entry))) {
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zip_entry_open($zip_handle, $entry, 'r');
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$file_data = zip_entry_read($entry, zip_entry_filesize($entry));
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zip_entry_close($entry);
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break;
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}
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} else {
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/**
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* Either we have reached the end of the zip and still
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* haven't found $specific_entry or there was a parsing
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* error that we must display
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*/
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if ($entry === false) {
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$error_message = __('Error in ZIP archive:') . ' Could not find "' . $specific_entry . '"';
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} else {
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$error_message = __('Error in ZIP archive:') . ' ' . PMA_getZipError($zip_handle);
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}
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break;
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}
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}
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} else {
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zip_entry_open($zip_handle, $first_zip_entry, 'r');
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/* File pointer has already been moved, so include what was read above */
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$file_data = $read;
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$file_data .= zip_entry_read($first_zip_entry, zip_entry_filesize($first_zip_entry));
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zip_entry_close($first_zip_entry);
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}
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}
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} else {
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$error_message = __('Error in ZIP archive:') . ' ' . PMA_getZipError($zip_handle);
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}
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zip_close($zip_handle);
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return (array('error' => $error_message, 'data' => $file_data));
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}
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/**
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* Returns the file name of the first file that matches the given $file_regexp.
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*
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* @param string $file_regexp regular expression for the file name to match
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* @param string $file zip archive
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*
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* @return string the file name of the first file that matches the given regexp
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*/
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function PMA_findFileFromZipArchive ($file_regexp, $file)
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{
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$zip_handle = zip_open($file);
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$found = false;
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if (is_resource($zip_handle)) {
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$entry = zip_read($zip_handle);
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while (is_resource($entry)) {
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if (preg_match($file_regexp, zip_entry_name($entry))) {
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$file_name = zip_entry_name($entry);
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zip_close($zip_handle);
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return $file_name;
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}
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$entry = zip_read($zip_handle);
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}
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}
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zip_close($zip_handle);
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return false;
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}
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/**
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* Returns the number of files in the zip archive.
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*
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* @param string $file zip archive
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*
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* @return int the number of files in the zip archive
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*/
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function PMA_getNoOfFilesInZip($file)
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{
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$count = 0;
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$zip_handle = zip_open($file);
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$found = false;
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if (is_resource($zip_handle)) {
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$entry = zip_read($zip_handle);
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while (is_resource($entry)) {
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$count++;
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$entry = zip_read($zip_handle);
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}
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}
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zip_close($zip_handle);
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return $count;
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}
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/**
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* Extracts a set of files from the given zip archive to a given destinations.
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*
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* @param string $zip_path path to the zip archive
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* @param string $destination destination to extract files
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* @param array $entries files in archive that should be extracted
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*
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* @return bool true on sucess, false otherwise
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*/
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function PMA_zipExtract($zip_path, $destination, $entries)
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{
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$zip = new ZipArchive;
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if ($zip->open($zip_path) === true) {
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$zip->extractTo($destination, $entries);
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$zip->close();
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return true;
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}
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return false;
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}
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/**
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* Gets zip error message
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*
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* @param integer $code error code
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*
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* @return string error message
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*/
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function PMA_getZipError($code)
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{
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// I don't think this needs translation
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switch ($code) {
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case ZIPARCHIVE::ER_MULTIDISK:
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$message = 'Multi-disk zip archives not supported';
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break;
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case ZIPARCHIVE::ER_READ:
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$message = 'Read error';
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break;
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case ZIPARCHIVE::ER_CRC:
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$message = 'CRC error';
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break;
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case ZIPARCHIVE::ER_NOZIP:
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$message = 'Not a zip archive';
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break;
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case ZIPARCHIVE::ER_INCONS:
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$message = 'Zip archive inconsistent';
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break;
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default:
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$message = $code;
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}
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return $message;
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}
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?>
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