egroupware/etemplate/inc/class.etemplate_widget_vfs.inc.php

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<?php
/**
* EGroupware - eTemplate serverside vfs 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 VFS widget
* Deals with the Virtual File System
*/
class etemplate_widget_vfs extends etemplate_widget_file
{
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// Legacy option for vfs-upload
protected $legacy_options = "mime";
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public function __construct($xml='') {
if($xml) parent::__construct($xml);
}
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/**
* If widget is a vfs-file widget, and there are files in the specified directory,
* they should be displayed.
*/
public function beforeSendToClient($cname, $expand = array())
{
if($this->type == 'vfs-upload')
{
$form_name = self::form_name($cname, $this->id, $expand ? $expand : array('cont'=>self::$request->content));
// ID maps to path - check there for any existing files
list($app,$id,$relpath) = explode(':',$this->id,3);
if($app && $id)
{
if(!is_numeric($id))
{
$_id = self::expand_name($id,0,0,0,0,self::$request->content);
if($_id != $id)
{
$id = $_id;
$form_name = "$app:$id:$relpath";
}
}
$value =& self::get_array(self::$request->content, $form_name, true);
$path = egw_link::vfs_path($app,$id,'',true);
if (!empty($relpath)) $path .= '/'.$relpath;
// Single file, already existing
if (substr($path,-1) != '/' && egw_vfs::file_exists($path) && !egw_vfs::is_dir($path))
{
$file = egw_vfs::stat($path);
$file['path'] = egw_vfs::resolve_url($path);
$file['name'] = egw_vfs::basename($file['path']);
$file['mime'] = egw_vfs::mime_content_type($file['path']);
$value = array($file);
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}
else if (substr($path, -1) == '/' && egw_vfs::is_dir($path))
{
$value = egw_vfs::scandir($path);
foreach($value as &$file)
{
$file = egw_vfs::stat("$path$file");
$file['path'] = $file['url'];
$file['name'] = egw_vfs::basename($file['path']);
$file['mime'] = egw_vfs::mime_content_type($file['path']);
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}
}
}
}
}
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public static function ajax_upload() {
parent::ajax_upload();
foreach($_FILES as $field => $file)
{
self::store_file($_REQUEST['widget_id'], $file);
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}
}
/**
* Upload via dragging images into ckeditor
*/
public static function ajax_htmlarea_upload()
{
$request_id = str_replace(' ', '+', rawurldecode($_REQUEST['request_id']));
$widget_id = $_REQUEST['widget_id'];
if(!self::$request = etemplate_request::read($request_id))
{
$error = lang("Could not read session");
}
elseif (!($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
$error = lang("Could not get template for file upload, callback skipped");
}
/*elseif (!($widget = $template->getElementById($widget_id)))
{
$error = "Widget '$widget_id' not found!";
}*/
elseif (!isset($_FILES['upload']))
{
$error = lang('No _FILES[upload] found!');
}
else
{
$data = self::$request->content[$widget_id];
$path = self::store_file($path = self::get_vfs_path($data['to_app'].':'.$data['to_id']).'/', $_FILES['upload']);
}
// switch regular JSON response handling off
egw_json_request::isJSONRequest(false);
$file = array(
"uploaded" => (int)empty($error),
"fileName" => html::htmlspecialchars($_FILES['upload']['name']),
"url" => egw::link(egw_vfs::download_url($path)),
"error" => array(
"message" => $error,
)
);
header('Content-Type: application/json; charset=utf-8');
echo json_encode($file);
common::egw_exit();
}
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/**
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* Ajax callback to receive an incoming file
*
* The incoming file is automatically placed into the appropriate VFS location.
* If the entry is not yet created, 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
* $content array and the application should deal with the file.
*/
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public static function store_file($path, $file) {
$name = $_REQUEST['widget_id'];
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// Find real path
if($path[0] != '/')
{
$path = self::get_vfs_path($path);
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}
$filename = $file['name'];
if (substr($path,-1) != '/')
{
// add extension to path
$parts = explode('.',$filename);
if (($extension = array_pop($parts)) && mime_magic::ext2mime($extension)) // really an extension --> add it to path
{
$path .= '.'.$extension;
}
}
else // multiple upload with dir given (trailing slash)
{
$path .= egw_vfs::encodePathComponent($filename);
}
if (!egw_vfs::file_exists($dir = egw_vfs::dirname($path)) && !egw_vfs::mkdir($dir,null,STREAM_MKDIR_RECURSIVE))
{
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self::set_validation_error($name,lang('Error create parent directory %1!',egw_vfs::decodePath($dir)));
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return false;
}
if (!copy($file['tmp_name'],egw_vfs::PREFIX.$path))
{
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self::set_validation_error($name,lang('Error copying uploaded file to vfs!'));
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return false;
}
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// Try to remove temp file
unlink($file['tmp_name']);
return $path;
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}
/**
* 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'
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* @param array $content
* @param array &$validated=array() validated content
*/
public function validate($cname, array $expand, array $content, &$validated=array())
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{
// do not validate, as it would overwrite preserved values with null!
if (in_array($this->type, array('vfs-size', 'vfs-uid', 'vfs-gid', 'vfs', 'vfs-mime')))
{
return;
}
$form_name = self::form_name($cname, $this->id, $expand);
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$value = $value_in = self::get_array($content, $form_name);
$valid =& self::get_array($validated, $form_name, true);
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switch($this->type)
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{
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case 'vfs-upload':
if(!is_array($value)) $value = array();
// Check & skip files that made it asyncronously
list($app,$id,$relpath) = explode(':',$this->id,3);
//...
foreach($value as $tmp => $file)
{
if(egw_vfs::file_exists(self::get_vfs_path($id) . $relpath)) {}
}
parent::validate($cname, $content, $validated);
break;
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}
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$valid = $value;
}
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/**
* Change an ID like app:id:relative/path to an actual VFS location
*/
public static function get_vfs_path($path) {
list($app,$id,$relpath) = explode(':',$path,3);
if (empty($id) || $id == 'undefined')
{
static $tmppath = array(); // static var, so all vfs-uploads get created in the same temporary dir
if (!isset($tmppath[$app])) $tmppath[$app] = '/home/'.$GLOBALS['egw_info']['user']['account_lid'].'/.'.$app.'_'.md5(time().session_id());
$path = $tmppath[$app];
unset($cell['onchange']); // no onchange, if we have to use a temporary dir
}
else
{
$path = egw_link::vfs_path($app,$id,'',true);
}
if (!empty($relpath)) $path .= '/'.$relpath;
return $path;
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}
}
etemplate_widget::registerWidget('etemplate_widget_vfs', array('vfs-upload'));