MDL-15919 deprecated old unzip_files()

This commit is contained in:
skodak
2008-08-02 18:59:00 +00:00
parent d4858e5cd1
commit 0c6d2dd41a
2 changed files with 61 additions and 92 deletions
+61
View File
@@ -328,6 +328,67 @@ function detect_munged_arguments($string, $allowdots=1) {
}
/**
* Unzip one zip file to a destination dir
* Both parameters must be FULL paths
* If destination isn't specified, it will be the
* SAME directory where the zip file resides.
*/
function unzip_file($zipfile, $destination = '', $showstatus_ignored = true) {
global $CFG;
//Extract everything from zipfile
$path_parts = pathinfo(cleardoubleslashes($zipfile));
$zippath = $path_parts["dirname"]; //The path of the zip file
$zipfilename = $path_parts["basename"]; //The name of the zip file
$extension = $path_parts["extension"]; //The extension of the file
//If no file, error
if (empty($zipfilename)) {
return false;
}
//If no extension, error
if (empty($extension)) {
return false;
}
//Clear $zipfile
$zipfile = cleardoubleslashes($zipfile);
//Check zipfile exists
if (!file_exists($zipfile)) {
return false;
}
//If no destination, passed let's go with the same directory
if (empty($destination)) {
$destination = $zippath;
}
//Clear $destination
$destpath = rtrim(cleardoubleslashes($destination), "/");
//Check destination path exists
if (!is_dir($destpath)) {
return false;
}
$result = get_file_packer()->unzip_files_to_pathname($zipfile, $destpath);
if ($result === false) {
return false;
}
foreach ($result as $status) {
if ($status !== true) {
return false;
}
}
return true;
}
/////////////////////////////////////////////////////////////
/// Old functions not used anymore - candidates for removal
/////////////////////////////////////////////////////////////
-92
View File
@@ -7302,98 +7302,6 @@ function zip_files ($originalfiles, $destination) {
return true;
}
/**
* Unzip one zip file to a destination dir
* Both parameters must be FULL paths
* If destination isn't specified, it will be the
* SAME directory where the zip file resides.
*/
function unzip_file($zipfile, $destination = '', $showstatus = true) {
global $CFG;
//Extract everything from zipfile
$path_parts = pathinfo(cleardoubleslashes($zipfile));
$zippath = $path_parts["dirname"]; //The path of the zip file
$zipfilename = $path_parts["basename"]; //The name of the zip file
$extension = $path_parts["extension"]; //The extension of the file
//If no file, error
if (empty($zipfilename)) {
return false;
}
//If no extension, error
if (empty($extension)) {
return false;
}
//Clear $zipfile
$zipfile = cleardoubleslashes($zipfile);
//Check zipfile exists
if (!file_exists($zipfile)) {
return false;
}
//If no destination, passed let's go with the same directory
if (empty($destination)) {
$destination = $zippath;
}
//Clear $destination
$destpath = rtrim(cleardoubleslashes($destination), "/");
//Check destination path exists
if (!is_dir($destpath)) {
return false;
}
//Check destination path is writable. TODO!!
//Everything is ready:
// -$zippath is the path where the zip file resides (dir)
// -$zipfilename is the name of the zip file (without path)
// -$destpath is the destination path where the zip file will uncompressed (dir)
$list = null;
if (empty($CFG->unzip)) { // Use built-in php-based unzip function
include_once("$CFG->libdir/pclzip/pclzip.lib.php");
$archive = new PclZip(cleardoubleslashes("$zippath/$zipfilename"));
if (!$list = $archive->extract(PCLZIP_OPT_PATH, $destpath,
PCLZIP_CB_PRE_EXTRACT, 'unzip_cleanfilename',
PCLZIP_OPT_EXTRACT_DIR_RESTRICTION, $destpath)) {
if (!empty($showstatus)) {
notice($archive->errorInfo(true));
}
return false;
}
} else { // Use external unzip program
$separator = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' ? ' &' : ' ;';
$redirection = strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' ? '' : ' 2>&1';
$command = 'cd '.escapeshellarg($zippath).$separator.
escapeshellarg($CFG->unzip).' -o '.
escapeshellarg(cleardoubleslashes("$zippath/$zipfilename")).' -d '.
escapeshellarg($destpath).$redirection;
//All converted to backslashes in WIN
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
$command = str_replace('/','\\',$command);
}
Exec($command,$list);
}
//Display some info about the unzip execution
if ($showstatus) {
unzip_show_status($list,$destpath);
}
return true;
}
/**
* This function is used as callback in unzip_file() function
* to clean illegal characters for given platform and to prevent directory traversal.