mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-23 07:09:20 +01:00
307 lines
8.9 KiB
PHP
307 lines
8.9 KiB
PHP
<?php
|
|
/**
|
|
* EGroupware - eTemplate serverside file upload widget
|
|
*
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @package etemplate
|
|
* @subpackage api
|
|
* @link http://www.egroupware.org
|
|
* @author Nathan Gray
|
|
* @copyright 2011 Nathan Gray
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* eTemplate file upload widget
|
|
* Uses AJAX to send file(s) to server, and stores for submit
|
|
*/
|
|
class etemplate_widget_file extends etemplate_widget
|
|
{
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @param string $xml
|
|
*/
|
|
public function __construct($xml='')
|
|
{
|
|
if($xml) parent::__construct($xml);
|
|
|
|
// Legacy multiple - id ends in []
|
|
if(substr($this->id,-2) == '[]')
|
|
{
|
|
$this->setElementAttribute($this->id, 'multiple', true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ajax callback to receive an incoming file
|
|
*
|
|
* The incoming file is moved from its temporary location (otherwise server will delete it) and
|
|
* the file information is stored into the widget's value. When the form is submitted, the information for all
|
|
* files uploaded is available in the returned $content array. Because files are uploaded asynchronously,
|
|
* submission should be quick.
|
|
*
|
|
* @note Currently, no attempt is made to clean up files automatically.
|
|
*/
|
|
public static function ajax_upload() {
|
|
$response = egw_json_response::get();
|
|
$request_id = str_replace(' ', '+', rawurldecode($_REQUEST['request_id']));
|
|
$widget_id = $_REQUEST['widget_id'];
|
|
if(!self::$request = etemplate_request::read($request_id)) {
|
|
$response->error("Could not read session");
|
|
return;
|
|
}
|
|
|
|
if (!($template = etemplate_widget_template::instance(self::$request->template['name'], self::$request->template['template_set'],
|
|
self::$request->template['version'], self::$request->template['load_via'])))
|
|
{
|
|
// Can't use callback
|
|
error_log("Could not get template for file upload, callback skipped");
|
|
}
|
|
|
|
$file_data = array();
|
|
|
|
// There should only be one file, as they're sent one at a time
|
|
foreach ($_FILES as $field => &$files)
|
|
{
|
|
$widget = $template->getElementById($widget_id ? $widget_id : $field);
|
|
if($widget && $widget->attrs['mime']) {
|
|
$mime = $widget->attrs['mime'];
|
|
}
|
|
|
|
// Check for legacy [] in id to indicate multiple - it changes format
|
|
if(is_array($files['name'])) {
|
|
$file_list = array();
|
|
foreach($files as $f_field => $values)
|
|
{
|
|
foreach($values as $key => $f_value) {
|
|
$file_list[$key][$f_field] = $f_value;
|
|
}
|
|
}
|
|
foreach($file_list as $file)
|
|
{
|
|
self::process_uploaded_file($field, $file, $mime, $file_data);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Just one file
|
|
self::process_uploaded_file($field, $files, $mime, $file_data);
|
|
}
|
|
}
|
|
|
|
// Set up response
|
|
$response->data($file_data);
|
|
|
|
// Check for a callback, call it if there is one
|
|
foreach($_FILES as $field => $file)
|
|
{
|
|
if(($element = $template->getElementById($field)))
|
|
{
|
|
$callback = $element->attrs['callback'];
|
|
if(!$callback) $callback = $template->getElementAttribute($field, 'callback');
|
|
if($callback)
|
|
{
|
|
ExecMethod($callback, $_FILES[$field]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process one uploaded file. There should only be one per request...
|
|
*/
|
|
protected static function process_uploaded_file($field, Array &$file, $mime, Array &$file_data)
|
|
{
|
|
unset($field); // not used
|
|
|
|
// Chunks get mangled a little
|
|
if($file['name'] == 'blob')
|
|
{
|
|
$file['name'] = $_POST['resumableFilename'];
|
|
$file['type'] = $_POST['resumableType'];
|
|
}
|
|
|
|
if ($file['error'] == UPLOAD_ERR_OK && trim($file['name']) != '' && $file['size'] > 0 && is_uploaded_file($file['tmp_name'])) {
|
|
// Mime check
|
|
if($mime)
|
|
{
|
|
$type = $file['type'];
|
|
$is_preg = $mime[0] == '/';
|
|
if (!$is_preg && strcasecmp($mime,$type) ||
|
|
$is_preg && !preg_match($mime,$type))
|
|
{
|
|
$file_data[$file['name']] = $file['name'].':'.lang('File is of wrong type (%1 != %2)!',$type,$mime);
|
|
//error_log(__METHOD__.__LINE__.array2string($file_data[$file['name']]));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Resumable / chunked uploads
|
|
// init the destination file (format <filename.ext>.part<#chunk>
|
|
// the file is stored in a temporary directory
|
|
$temp_dir = $GLOBALS['egw_info']['server']['temp_dir'].'/'.str_replace('/','_',$_POST['resumableIdentifier']);
|
|
$dest_file = $temp_dir.'/'.str_replace('/','_',$_POST['resumableFilename']).'.part'.(int)$_POST['resumableChunkNumber'];
|
|
|
|
// create the temporary directory
|
|
if (!is_dir($temp_dir))
|
|
{
|
|
mkdir($temp_dir, 0755, true);
|
|
}
|
|
|
|
// move the temporary file
|
|
if (!move_uploaded_file($file['tmp_name'], $dest_file))
|
|
{
|
|
$file_data[$file['name']] = 'Error saving (move_uploaded_file) chunk '.(int)$_POST['resumableChunkNumber'].' for file '.$_POST['resumableFilename'];
|
|
}
|
|
else
|
|
{
|
|
// check if all the parts present, and create the final destination file
|
|
$new_file = self::createFileFromChunks($temp_dir, str_replace('/','_',$_POST['resumableFilename']),
|
|
$_POST['resumableChunkSize'], $_POST['resumableTotalSize']);
|
|
}
|
|
if( $new_file) {
|
|
$file['tmp_name'] = $new_file;
|
|
|
|
// Data to send back to client
|
|
$temp_name = basename($file['tmp_name']);
|
|
$file_data[$temp_name] = array(
|
|
// Use egw_vfs to avoid UTF8 / non-ascii issues
|
|
'name' => egw_vfs::basename($file['name']),
|
|
'type' => $file['type']
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* Check if all the parts exist, and
|
|
* gather all the parts of the file together
|
|
*
|
|
* From Resumable samples - http://resumablejs.com/
|
|
* @param string $temp_dir - the temporary directory holding all the parts of the file
|
|
* @param string $fileName - the original file name
|
|
* @param string $chunkSize - each chunk size (in bytes)
|
|
* @param string $totalSize - original file size (in bytes)
|
|
*/
|
|
private static function createFileFromChunks($temp_dir, $fileName, $chunkSize, $totalSize) {
|
|
|
|
// count all the parts of this file
|
|
$total_files = 0;
|
|
foreach(scandir($temp_dir) as $file) {
|
|
if (stripos($file, $fileName) !== false) {
|
|
$total_files++;
|
|
}
|
|
}
|
|
|
|
// check that all the parts are present
|
|
// the size of the last part is between chunkSize and 2*$chunkSize
|
|
if ($total_files * $chunkSize >= ($totalSize - $chunkSize + 1)) {
|
|
if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
|
|
{
|
|
$new_file = tempnam($GLOBALS['egw_info']['server']['temp_dir'],'egw_');
|
|
}
|
|
else
|
|
{
|
|
$new_file = $file['tmp_name'].'+';
|
|
}
|
|
|
|
// create the final destination file
|
|
if (($fp = fopen($new_file, 'w')) !== false) {
|
|
for ($i=1; $i<=$total_files; $i++) {
|
|
fwrite($fp, file_get_contents($temp_dir.'/'.$fileName.'.part'.$i));
|
|
}
|
|
fclose($fp);
|
|
} else {
|
|
_log('cannot create the destination file');
|
|
return false;
|
|
}
|
|
|
|
// rename the temporary directory (to avoid access from other
|
|
// concurrent chunks uploads) and than delete it
|
|
if (rename($temp_dir, $temp_dir.'_UNUSED')) {
|
|
self::rrmdir($temp_dir.'_UNUSED');
|
|
} else {
|
|
self::rrmdir($temp_dir);
|
|
}
|
|
|
|
return $new_file;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete a directory RECURSIVELY
|
|
* @param string $dir - directory path
|
|
* @link http://php.net/manual/en/function.rmdir.php
|
|
*/
|
|
private static function rrmdir($dir) {
|
|
if (is_dir($dir)) {
|
|
$objects = scandir($dir);
|
|
foreach ($objects as $object) {
|
|
if ($object != "." && $object != "..") {
|
|
if (filetype($dir . "/" . $object) == "dir") {
|
|
rrmdir($dir . "/" . $object);
|
|
} else {
|
|
unlink($dir . "/" . $object);
|
|
}
|
|
}
|
|
}
|
|
reset($objects);
|
|
rmdir($dir);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Validate input
|
|
* Merge any already uploaded files into the content array
|
|
*
|
|
* @param string $cname current namespace
|
|
* @param array $expand values for keys 'c', 'row', 'c_', 'row_', 'cont'
|
|
* @param array $content
|
|
* @param array &$validated=array() validated content
|
|
*/
|
|
public function validate($cname, array $expand, array $content, &$validated=array())
|
|
{
|
|
$form_name = self::form_name($cname, $this->id, $expand);
|
|
|
|
if (!$this->is_readonly($cname, $form_name))
|
|
{
|
|
$value = $value_in = self::get_array($content, $form_name);
|
|
$valid =& self::get_array($validated, $form_name, true);
|
|
|
|
if(!is_array($value)) $value = array();
|
|
|
|
// Incoming values indexed by temp name
|
|
if($value[0]) $value = $value[0];
|
|
|
|
foreach($value as $tmp => $file)
|
|
{
|
|
if(!$file) continue;
|
|
if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
|
|
{
|
|
$path = $GLOBALS['egw_info']['server']['temp_dir'].'/'.$tmp;
|
|
}
|
|
else
|
|
{
|
|
$path = $tmp.'+';
|
|
}
|
|
$stat = stat($path);
|
|
$valid[] = array(
|
|
'name' => $file['name'],
|
|
'type' => $file['type'],
|
|
'tmp_name' => $path,
|
|
'error' => UPLOAD_ERR_OK, // Always OK if we get this far
|
|
'size' => $stat['size'],
|
|
'ip' => $_SERVER['REMOTE_ADDR'], // Assume it's the same as for when it was uploaded...
|
|
);
|
|
}
|
|
|
|
if($valid && !$this->attrs['multiple']) $valid = $valid[0];
|
|
}
|
|
}
|
|
}
|
|
etemplate_widget::registerWidget('etemplate_widget_file', array('file'));
|