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Skip over __MACOSX folders during zip extraction. Props chrisbliss18. Fixes #12637 

git-svn-id: http://svn.automattic.com/wordpress/trunk@14349 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
dd32 2010-05-02 23:24:36 +00:00
parent ec38ce48e9
commit 2db60de875
1 changed files with 15 additions and 2 deletions
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17
wp-admin/includes/file.php
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@ -503,7 +503,7 @@ function download_url( $url ) {
/**
* Unzip's a specified ZIP file to a location on the Filesystem via the WordPress Filesystem Abstraction.
* Assumes that WP_Filesystem() has already been called and set up.
* Assumes that WP_Filesystem() has already been called and set up. Does not extract a root-level __MACOSX directory, if present.
*
* Attempts to increase the PHP Memory limit to 256M before uncompressing,
* However, The most memory required shouldn't be much larger than the Archive itself.
@ -584,6 +584,9 @@ function _unzip_file_ziparchive($file, $to, $needed_dirs = array() ) {
if ( ! $info = $z->statIndex($i) )
return new WP_Error('stat_failed', __('Could not retrieve file from archive.'));
if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Skip the OS X-created __MACOSX directory
continue;
if ( '/' == substr($info['name'], -1) ) // directory
$needed_dirs[] = $to . untrailingslashit($info['name']);
else
@ -607,6 +610,9 @@ function _unzip_file_ziparchive($file, $to, $needed_dirs = array() ) {
if ( '/' == substr($info['name'], -1) ) // directory
continue;
if ( '__MACOSX/' === substr($info['name'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files
continue;
$contents = $z->getFromIndex($i);
if ( false === $contents )
return new WP_Error('extract_failed', __('Could not extract file from archive.'), $info['name']);
@ -648,8 +654,12 @@ function _unzip_file_pclzip($file, $to, $needed_dirs = array()) {
return new WP_Error('empty_archive', __('Empty archive.'));
// Determine any children directories needed (From within the archive)
foreach ( $archive_files as $file )
foreach ( $archive_files as $file ) {
if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Skip the OS X-created __MACOSX directory
continue;
$needed_dirs[] = $to . untrailingslashit( $file['folder'] ? $file['filename'] : dirname($file['filename']) );
}
$needed_dirs = array_unique($needed_dirs);
asort($needed_dirs);
@ -666,6 +676,9 @@ function _unzip_file_pclzip($file, $to, $needed_dirs = array()) {
if ( $file['folder'] )
continue;
if ( '__MACOSX/' === substr($file['filename'], 0, 9) ) // Don't extract the OS X-created __MACOSX directory files
continue;
if ( ! $wp_filesystem->put_contents( $to . $file['filename'], $file['content'], FS_CHMOD_FILE) )
return new WP_Error('copy_failed', __('Could not copy file.'), $to . $file['filename']);
}